Merged ESM into feature-bootstrap4. Started work on text inputs.

.babelrc

@@ -5,10 +5,15 @@
                 "chrome": 40,
                 "firefox": 35,
                 "edge": 14,
-                "node": "6.5",
+                "node": "6.5"
             },
             "modules": false,
             "useBuiltIns": true
         }]
+    ],
+    "plugins": [
+        ["babel-plugin-transform-builtin-extend", {
+            "globals": ["Error"]
+        }]
     ]
 }

.editorconfig

@@ -0,0 +1,14 @@
+# top-most EditorConfig file
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 4
+
+[{package.json,.travis.yml}]
+indent_style = space
+indent_size = 2

.eslintignore

@@ -1,2 +1,2 @@
-src/core/lib/**
-src/core/config/MetaConfig.js
+src/core/vendor/**
+src/core/operations/legacy/**

.eslintrc.json

@@ -1,6 +1,6 @@
 {
     "parserOptions": {
-        "ecmaVersion": 8,
+        "ecmaVersion": 9,
         "ecmaFeatures": {
             "impliedStrict": true
         },
@@ -84,12 +84,12 @@
         "no-whitespace-before-property": "error",
         "operator-linebreak": ["error", "after"],
         "space-in-parens": "error",
-        "no-var": "error"
+        "no-var": "error",
+        "prefer-const": "error"
     },
     "globals": {
         "$": false,
         "jQuery": false,
-        "moment": false,
         "log": false,
 
         "COMPILE_TIME": false,

.gitignore

@@ -6,4 +6,7 @@ docs/*
 !docs/*.conf.json
 !docs/*.ico
 .vscode
-src/core/config/MetaConfig.js
+src/core/config/modules/*
+src/core/config/OperationConfig.json
+src/core/operations/index.mjs
+

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "8.4"
+  - node
 install: npm install
 before_script:
   - npm install -g grunt

Gruntfile.js

@@ -4,7 +4,8 @@ const webpack = require("webpack");
 const HtmlWebpackPlugin = require("html-webpack-plugin");
 const NodeExternals = require("webpack-node-externals");
 const Inliner = require("web-resource-inliner");
-const fs = require("fs");
+const glob = require("glob");
+const path = require("path");
 
 /**
  * Grunt configuration for building the app in various formats.
@@ -21,15 +22,15 @@ module.exports = function (grunt) {
     // Tasks
     grunt.registerTask("dev",
         "A persistent task which creates a development build whenever source files are modified.",
-        ["clean:dev", "concurrent:dev"]);
+        ["clean:dev", "exec:generateConfig", "concurrent:dev"]);
 
     grunt.registerTask("node",
         "Compiles CyberChef into a single NodeJS module.",
-        ["clean:node", "webpack:metaConf", "webpack:node", "chmod:build"]);
+        ["clean:node", "clean:config", "exec:generateConfig", "webpack:node", "chmod:build"]);
 
     grunt.registerTask("test",
         "A task which runs all the tests in test/tests.",
-        ["clean:test", "webpack:metaConf", "webpack:tests", "execute:test"]);
+        ["exec:generateConfig", "exec:tests"]);
 
     grunt.registerTask("docs",
         "Compiles documentation in the /docs directory.",
@@ -37,7 +38,7 @@ module.exports = function (grunt) {
 
     grunt.registerTask("prod",
         "Creates a production-ready build. Use the --msg flag to add a compile message.",
-        ["eslint", "clean:prod", "webpack:metaConf", "webpack:web", "inline", "chmod"]);
+        ["eslint", "clean:prod", "exec:generateConfig", "webpack:web", "inline", "chmod"]);
 
     grunt.registerTask("default",
         "Lints the code base",
@@ -45,7 +46,7 @@ module.exports = function (grunt) {
 
     grunt.registerTask("inline",
         "Compiles a production build of CyberChef into a single, portable web page.",
-        ["webpack:webInline", "runInliner", "clean:inlineScripts"]);
+        ["exec:generateConfig", "webpack:webInline", "runInliner", "clean:inlineScripts"]);
 
 
     grunt.registerTask("runInliner", runInliner);
@@ -60,9 +61,9 @@ module.exports = function (grunt) {
     grunt.loadNpmTasks("grunt-jsdoc");
     grunt.loadNpmTasks("grunt-contrib-clean");
     grunt.loadNpmTasks("grunt-contrib-copy");
+    grunt.loadNpmTasks("grunt-contrib-watch");
     grunt.loadNpmTasks("grunt-chmod");
     grunt.loadNpmTasks("grunt-exec");
-    grunt.loadNpmTasks("grunt-execute");
     grunt.loadNpmTasks("grunt-accessibility");
     grunt.loadNpmTasks("grunt-concurrent");
 
@@ -118,12 +119,12 @@ module.exports = function (grunt) {
      * Generates an entry list for all the modules.
      */
     function listEntryModules() {
-        const path = "./src/core/config/modules/";
-        let entryModules = {};
+        const entryModules = {};
 
-        fs.readdirSync(path).forEach(file => {
-            if (file !== "Default.js" && file !== "OpModules.js")
-                entryModules[file.split(".js")[0]] = path + file;
+        glob.sync("./src/core/config/modules/*.mjs").forEach(file => {
+            const basename = path.basename(file);
+            if (basename !== "Default.mjs" && basename !== "OpModules.mjs")
+                entryModules[basename.split(".mjs")[0]] = path.resolve(file);
         });
 
         return entryModules;
@@ -131,10 +132,10 @@ module.exports = function (grunt) {
 
     grunt.initConfig({
         clean: {
-            dev: ["build/dev/*", "src/core/config/MetaConfig.js"],
-            prod: ["build/prod/*", "src/core/config/MetaConfig.js"],
-            test: ["build/test/*", "src/core/config/MetaConfig.js"],
-            node: ["build/node/*", "src/core/config/MetaConfig.js"],
+            dev: ["build/dev/*"],
+            prod: ["build/prod/*"],
+            node: ["build/node/*"],
+            config: ["src/core/config/OperationConfig.json", "src/core/config/modules/*", "src/code/operations/index.mjs"],
             docs: ["docs/*", "!docs/*.conf.json", "!docs/*.ico", "!docs/*.png"],
             inlineScripts: ["build/prod/scripts.js"],
         },
@@ -143,10 +144,10 @@ module.exports = function (grunt) {
                 configFile: "./.eslintrc.json"
             },
             configs: ["Gruntfile.js"],
-            core: ["src/core/**/*.js", "!src/core/lib/**/*", "!src/core/config/MetaConfig.js"],
-            web: ["src/web/**/*.js"],
-            node: ["src/node/**/*.js"],
-            tests: ["test/**/*.js"],
+            core: ["src/core/**/*.{js,mjs}", "!src/core/vendor/**/*", "!src/core/operations/legacy/**/*"],
+            web: ["src/web/**/*.{js,mjs}"],
+            node: ["src/node/**/*.{js,mjs}"],
+            tests: ["test/**/*.{js,mjs}"],
         },
         jsdoc: {
             options: {
@@ -159,17 +160,11 @@ module.exports = function (grunt) {
             all: {
                 src: [
                     "src/**/*.js",
-                    "!src/core/lib/**/*",
-                    "!src/core/config/MetaConfig.js"
+                    "src/**/*.mjs",
+                    "!src/core/vendor/**/*"
                 ],
             }
         },
-        concurrent: {
-            options: {
-                logConcurrentOutput: true
-            },
-            dev: ["webpack:metaConfDev", "webpack-dev-server:start"]
-        },
         accessibility: {
             options: {
                 accessibilityLevel: "WCAG2A",
@@ -184,39 +179,6 @@ module.exports = function (grunt) {
         },
         webpack: {
             options: webpackConfig,
-            metaConf: {
-                mode: "production",
-                target: "node",
-                entry: [
-                    "babel-polyfill",
-                    "./src/core/config/OperationConfig.js"
-                ],
-                output: {
-                    filename: "MetaConfig.js",
-                    path: __dirname + "/src/core/config/",
-                    library: "MetaConfig",
-                    libraryTarget: "commonjs2",
-                    libraryExport: "default"
-                },
-                externals: [NodeExternals()],
-            },
-            metaConfDev: {
-                mode: "development",
-                target: "node",
-                entry: [
-                    "babel-polyfill",
-                    "./src/core/config/OperationConfig.js"
-                ],
-                output: {
-                    filename: "MetaConfig.js",
-                    path: __dirname + "/src/core/config/",
-                    library: "MetaConfig",
-                    libraryTarget: "commonjs2",
-                    libraryExport: "default"
-                },
-                externals: [NodeExternals()],
-                watch: true
-            },
             web: {
                 mode: "production",
                 target: "web",
@@ -229,7 +191,7 @@ module.exports = function (grunt) {
                 },
                 resolve: {
                     alias: {
-                        "./config/modules/OpModules.js": "./config/modules/Default.js"
+                        "./config/modules/OpModules": "./config/modules/Default"
                     }
                 },
                 plugins: [
@@ -279,7 +241,7 @@ module.exports = function (grunt) {
             tests: {
                 mode: "development",
                 target: "node",
-                entry: "./test/index.js",
+                entry: "./test/index.mjs",
                 externals: [NodeExternals()],
                 output: {
                     filename: "index.js",
@@ -292,7 +254,7 @@ module.exports = function (grunt) {
             node: {
                 mode: "production",
                 target: "node",
-                entry: "./src/node/index.js",
+                entry: "./src/node/index.mjs",
                 externals: [NodeExternals()],
                 output: {
                     filename: "CyberChef.js",
@@ -318,7 +280,7 @@ module.exports = function (grunt) {
                     chunks: false,
                     modules: false,
                     entrypoints: false,
-                    warningsFilter: /source-map/,
+                    warningsFilter: [/source-map/, /dependency is an expression/],
                 }
             },
             start: {
@@ -330,7 +292,7 @@ module.exports = function (grunt) {
                     }, moduleEntryPoints),
                     resolve: {
                         alias: {
-                            "./config/modules/OpModules.js": "./config/modules/Default.js"
+                            "./config/modules/OpModules": "./config/modules/Default"
                         }
                     },
                     plugins: [
@@ -388,6 +350,18 @@ module.exports = function (grunt) {
                 src: ["docs/**/*", "docs/"]
             }
         },
+        watch: {
+            config: {
+                files: ["src/core/operations/**/*", "!src/core/operations/index.mjs"],
+                tasks: ["exec:generateConfig"]
+            }
+        },
+        concurrent: {
+            dev: ["watch:config", "webpack-dev-server:start"],
+            options: {
+                logConcurrentOutput: true
+            }
+        },
         exec: {
             repoSize: {
                 command: [
@@ -401,10 +375,21 @@ module.exports = function (grunt) {
             },
             sitemap: {
                 command: "node build/prod/sitemap.js > build/prod/sitemap.xml"
+            },
+            generateConfig: {
+                command: [
+                    "echo '\n--- Regenerating config files. ---'",
+                    "mkdir -p src/core/config/modules",
+                    "echo 'export default {};\n' > src/core/config/modules/OpModules.mjs",
+                    "echo '[]\n' > src/core/config/OperationConfig.json",
+                    "node --experimental-modules src/core/config/scripts/generateOpsIndex.mjs",
+                    "node --experimental-modules src/core/config/scripts/generateConfig.mjs",
+                    "echo '--- Config scripts finished. ---\n'"
+                ].join(";")
+            },
+            tests: {
+                command: "node --experimental-modules test/index.mjs"
             }
         },
-        execute: {
-            test: "build/test/index.js"
-        },
     });
 };

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cyberchef",
-  "version": "7.7.7",
+  "version": "7.11.1",
   "description": "The Cyber Swiss Army Knife for encryption, encoding, compression and data analysis.",
   "author": "n1474335 <n1474335@gmail.com>",
   "homepage": "https://gchq.github.io/CyberChef",
@@ -30,76 +30,89 @@
   "main": "build/node/CyberChef.js",
   "bugs": "https://github.com/gchq/CyberChef/issues",
   "devDependencies": {
-    "babel-core": "^6.26.0",
-    "babel-loader": "^7.1.3",
+    "babel-core": "^6.26.3",
+    "babel-loader": "^7.1.4",
     "babel-preset-env": "^1.6.1",
-    "css-loader": "^0.28.10",
-    "eslint": "^4.18.1",
+    "bootstrap": "^4.1.1",
+    "css-loader": "^0.28.11",
+    "eslint": "^4.19.1",
     "exports-loader": "^0.7.0",
     "extract-text-webpack-plugin": "^4.0.0-alpha0",
-    "file-loader": "^1.1.10",
+    "file-loader": "^1.1.11",
     "grunt": ">=1.0.2",
     "grunt-accessibility": "~6.0.0",
     "grunt-chmod": "~1.1.1",
     "grunt-concurrent": "^2.3.1",
     "grunt-contrib-clean": "~1.1.0",
     "grunt-contrib-copy": "~1.0.0",
+    "grunt-contrib-watch": "^1.0.1",
     "grunt-eslint": "^20.1.0",
     "grunt-exec": "~3.0.0",
-    "grunt-execute": "^0.2.2",
     "grunt-jsdoc": "^2.2.1",
-    "grunt-webpack": "^3.0.2",
-    "html-webpack-plugin": "^3.0.4",
+    "grunt-webpack": "^3.1.1",
+    "html-webpack-plugin": "^3.2.0",
     "imports-loader": "^0.8.0",
     "ink-docstrap": "^1.3.2",
-    "jsdoc-babel": "^0.3.0",
-    "postcss-css-variables": "^0.8.0",
+    "js-to-mjs": "^0.2.0",
+    "jsdoc-babel": "^0.4.0",
+    "node-sass": "^4.9.0",
+    "postcss-css-variables": "^0.8.1",
     "postcss-import": "^11.1.0",
-    "postcss-loader": "^2.1.1",
+    "postcss-loader": "^2.1.4",
+    "sass-loader": "^7.0.2",
     "sitemap": "^1.13.0",
-    "style-loader": "^0.20.2",
-    "url-loader": "^0.6.2",
-    "val-loader": "^1.1.0",
+    "style-loader": "^0.21.0",
+    "url-loader": "^1.0.1",
     "web-resource-inliner": "^4.2.1",
-    "webpack": "^4.0.1",
-    "webpack-dev-server": "^3.1.0",
-    "webpack-node-externals": "^1.6.0",
+    "webpack": "^4.6.0",
+    "webpack-dev-server": "^3.1.3",
+    "webpack-node-externals": "^1.7.2",
     "worker-loader": "^1.1.1"
   },
   "dependencies": {
+    "arrive": "^2.4.1",
+    "babel-plugin-transform-builtin-extend": "1.1.2",
     "babel-polyfill": "^6.26.0",
-    "bignumber.js": "^6.0.0",
-    "bootstrap": "^4.0.0",
+    "bcryptjs": "^2.4.3",
+    "bignumber.js": "^7.0.1",
     "bootstrap-colorpicker": "^2.5.2",
+    "bootstrap-material-design": "^4.1.1",
     "bootstrap-switch": "^3.3.4",
+    "bson": "^2.0.6",
+    "chi-squared": "^1.1.0",
     "crypto-api": "^0.8.0",
     "crypto-js": "^3.1.9-1",
-    "diff": "^3.4.0",
+    "ctph.js": "0.0.5",
+    "diff": "^3.5.0",
+    "es6-promisify": "^6.0.0",
     "escodegen": "^1.9.1",
     "esmangle": "^1.0.1",
     "esprima": "^4.0.0",
     "exif-parser": "^0.1.12",
-    "file-saver": "^1.3.3",
+    "file-saver": "^1.3.8",
     "highlight.js": "^9.12.0",
     "jquery": "^3.3.1",
     "js-crc": "^0.2.0",
     "js-sha3": "^0.7.0",
     "jsbn": "^1.1.0",
+    "jsesc": "^2.5.1",
     "jsonpath": "^1.0.0",
-    "jsrsasign": "8.0.6",
-    "lodash": "^4.17.5",
+    "jsrsasign": "8.0.12",
+    "kbpgp": "^2.0.77",
+    "lodash": "^4.17.10",
     "loglevel": "^1.6.1",
     "loglevel-message-prefix": "^3.0.0",
-    "moment": "^2.20.1",
-    "moment-timezone": "^0.5.14",
-    "node-forge": "^0.7.2",
+    "moment": "^2.22.1",
+    "moment-timezone": "^0.5.16",
+    "node-forge": "^0.7.5",
     "node-md6": "^0.1.0",
-    "nwmatcher": "^1.4.3",
+    "nwmatcher": "^1.4.4",
     "otp": "^0.1.3",
     "popper.js": "^1.12.9",
-    "sladex-blowfish": "^0.8.1",
+    "scryptsy": "^2.0.0",
     "sortablejs": "^1.7.0",
     "split.js": "^1.3.5",
+    "ssdeep.js": "0.0.2",
     "ua-parser-js": "^0.7.17",
     "utf8": "^3.0.0",
     "vkbeautify": "^0.99.3",
@@ -112,6 +125,8 @@
     "start": "grunt dev",
     "build": "grunt prod",
     "test": "grunt test",
-    "docs": "grunt docs"
+    "docs": "grunt docs",
+    "lint": "grunt lint",
+    "postinstall": "[ -f node_modules/crypto-api/src/crypto-api.mjs ] || npx j2m node_modules/crypto-api/src/crypto-api.js"
   }
 }

src/core/Chef.js

@@ -1,165 +0,0 @@
-import Dish from "./Dish.js";
-import Recipe from "./Recipe.js";
-
-
-/**
- * The main controller for CyberChef.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @class
- */
-const Chef = function() {
-    this.dish = new Dish();
-};
-
-
-/**
- * Runs the recipe over the input.
- *
- * @param {string|ArrayBuffer} input - The input data as a string or ArrayBuffer
- * @param {Object[]} recipeConfig - The recipe configuration object
- * @param {Object} options - The options object storing various user choices
- * @param {boolean} options.attempHighlight - Whether or not to attempt highlighting
- * @param {number} progress - The position in the recipe to start from
- * @param {number} [step] - Whether to only execute one operation in the recipe
- *
- * @returns {Object} response
- * @returns {string} response.result - The output of the recipe
- * @returns {string} response.type - The data type of the result
- * @returns {number} response.progress - The position that we have got to in the recipe
- * @returns {number} response.duration - The number of ms it took to execute the recipe
- * @returns {number} response.error - The error object thrown by a failed operation (false if no error)
-*/
-Chef.prototype.bake = async function(input, recipeConfig, options, progress, step) {
-    log.debug("Chef baking");
-    const startTime  = new Date().getTime(),
-        recipe     = new Recipe(recipeConfig),
-        containsFc = recipe.containsFlowControl(),
-        notUTF8    = options && options.hasOwnProperty("treatAsUtf8") && !options.treatAsUtf8;
-    let error      = false;
-
-    if (containsFc && ENVIRONMENT_IS_WORKER()) self.setOption("attemptHighlight", false);
-
-    // Clean up progress
-    if (progress >= recipeConfig.length) {
-        progress = 0;
-    }
-
-    if (step) {
-        // Unset breakpoint on this step
-        recipe.setBreakpoint(progress, false);
-        // Set breakpoint on next step
-        recipe.setBreakpoint(progress + 1, true);
-    }
-
-    // If stepping with flow control, we have to start from the beginning
-    // but still want to skip all previous breakpoints
-    if (progress > 0 && containsFc) {
-        recipe.removeBreaksUpTo(progress);
-        progress = 0;
-    }
-
-    // If starting from scratch, load data
-    if (progress === 0) {
-        const type = input instanceof ArrayBuffer ? Dish.ARRAY_BUFFER : Dish.STRING;
-        this.dish.set(input, type);
-    }
-
-    try {
-        progress = await recipe.execute(this.dish, progress);
-    } catch (err) {
-        log.error(err);
-        error = {
-            displayStr: err.displayStr,
-        };
-        progress = err.progress;
-    }
-
-    // Depending on the size of the output, we may send it back as a string or an ArrayBuffer.
-    // This can prevent unnecessary casting as an ArrayBuffer can be easily downloaded as a file.
-    // The threshold is specified in KiB.
-    const threshold = (options.ioDisplayThreshold || 1024) * 1024;
-    const returnType = this.dish.size() > threshold ? Dish.ARRAY_BUFFER : Dish.STRING;
-
-    return {
-        result: this.dish.type === Dish.HTML ?
-            this.dish.get(Dish.HTML, notUTF8) :
-            this.dish.get(returnType, notUTF8),
-        type: Dish.enumLookup(this.dish.type),
-        progress: progress,
-        duration: new Date().getTime() - startTime,
-        error: error
-    };
-};
-
-
-/**
- * When a browser tab is unfocused and the browser has to run lots of dynamic content in other tabs,
- * it swaps out the memory for that tab. If the CyberChef tab has been unfocused for more than a
- * minute, we run a silent bake which will force the browser to load and cache all the relevant
- * JavaScript code needed to do a real bake.
- *
- * This will stop baking taking a long time when the CyberChef browser tab has been unfocused for a
- * long time and the browser has swapped out all its memory.
- *
- * The output will not be modified (hence "silent" bake).
- *
- * This will only actually execute the recipe if auto-bake is enabled, otherwise it will just load
- * the recipe, ingredients and dish.
- *
- * @param {Object[]} recipeConfig - The recipe configuration object
- * @returns {number} The time it took to run the silent bake in milliseconds.
-*/
-Chef.prototype.silentBake = function(recipeConfig) {
-    log.debug("Running silent bake");
-
-    let startTime = new Date().getTime(),
-        recipe    = new Recipe(recipeConfig),
-        dish      = new Dish("", Dish.STRING);
-
-    try {
-        recipe.execute(dish);
-    } catch (err) {
-        // Suppress all errors
-    }
-    return new Date().getTime() - startTime;
-};
-
-
-/**
- * Calculates highlight offsets if possible.
- *
- * @param {Object[]} recipeConfig
- * @param {string} direction
- * @param {Object} pos - The position object for the highlight.
- * @param {number} pos.start - The start offset.
- * @param {number} pos.end - The end offset.
- * @returns {Object}
- */
-Chef.prototype.calculateHighlights = function(recipeConfig, direction, pos) {
-    const recipe = new Recipe(recipeConfig);
-    const highlights = recipe.generateHighlightList();
-
-    if (!highlights) return false;
-
-    for (let i = 0; i < highlights.length; i++) {
-        // Remove multiple highlights before processing again
-        pos = [pos[0]];
-
-        const func = direction === "forward" ? highlights[i].f : highlights[i].b;
-
-        if (typeof func == "function") {
-            pos = func(pos, highlights[i].args);
-        }
-    }
-
-    return {
-        pos: pos,
-        direction: direction
-    };
-};
-
-export default Chef;

src/core/Chef.mjs

@@ -0,0 +1,198 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Dish from "./Dish";
+import Recipe from "./Recipe";
+import log from "loglevel";
+
+/**
+ * The main controller for CyberChef.
+ */
+class Chef {
+
+    /**
+     * Chef constructor
+     */
+    constructor() {
+        this.dish = new Dish();
+    }
+
+
+    /**
+     * Runs the recipe over the input.
+     *
+     * @param {string|ArrayBuffer} input - The input data as a string or ArrayBuffer
+     * @param {Object[]} recipeConfig - The recipe configuration object
+     * @param {Object} options - The options object storing various user choices
+     * @param {boolean} options.attempHighlight - Whether or not to attempt highlighting
+     * @param {number} progress - The position in the recipe to start from
+     * @param {number} [step] - Whether to only execute one operation in the recipe
+     *
+     * @returns {Object} response
+     * @returns {string} response.result - The output of the recipe
+     * @returns {string} response.type - The data type of the result
+     * @returns {number} response.progress - The position that we have got to in the recipe
+     * @returns {number} response.duration - The number of ms it took to execute the recipe
+     * @returns {number} response.error - The error object thrown by a failed operation (false if no error)
+    */
+    async bake(input, recipeConfig, options, progress, step) {
+        log.debug("Chef baking");
+        const startTime = new Date().getTime(),
+            recipe      = new Recipe(recipeConfig),
+            containsFc  = recipe.containsFlowControl(),
+            notUTF8     = options && options.hasOwnProperty("treatAsUtf8") && !options.treatAsUtf8;
+        let error = false;
+
+        if (containsFc && ENVIRONMENT_IS_WORKER()) self.setOption("attemptHighlight", false);
+
+        // Clean up progress
+        if (progress >= recipeConfig.length) {
+            progress = 0;
+        }
+
+        if (step) {
+            // Unset breakpoint on this step
+            recipe.setBreakpoint(progress, false);
+            // Set breakpoint on next step
+            recipe.setBreakpoint(progress + 1, true);
+        }
+
+        // If the previously run operation presented a different value to its
+        // normal output, we need to recalculate it.
+        if (recipe.lastOpPresented(progress)) {
+            progress = 0;
+        }
+
+        // If stepping with flow control, we have to start from the beginning
+        // but still want to skip all previous breakpoints
+        if (progress > 0 && containsFc) {
+            recipe.removeBreaksUpTo(progress);
+            progress = 0;
+        }
+
+        // If starting from scratch, load data
+        if (progress === 0) {
+            const type = input instanceof ArrayBuffer ? Dish.ARRAY_BUFFER : Dish.STRING;
+            this.dish.set(input, type);
+        }
+
+        try {
+            progress = await recipe.execute(this.dish, progress);
+        } catch (err) {
+            log.error(err);
+            error = {
+                displayStr: err.displayStr,
+            };
+            progress = err.progress;
+        }
+
+        // Depending on the size of the output, we may send it back as a string or an ArrayBuffer.
+        // This can prevent unnecessary casting as an ArrayBuffer can be easily downloaded as a file.
+        // The threshold is specified in KiB.
+        const threshold = (options.ioDisplayThreshold || 1024) * 1024;
+        const returnType = this.dish.size > threshold ? Dish.ARRAY_BUFFER : Dish.STRING;
+
+        // Create a raw version of the dish, unpresented
+        const rawDish = new Dish(this.dish);
+
+        // Present the raw result
+        await recipe.present(this.dish);
+
+        return {
+            dish: rawDish,
+            result: this.dish.type === Dish.HTML ?
+                await this.dish.get(Dish.HTML, notUTF8) :
+                await this.dish.get(returnType, notUTF8),
+            type: Dish.enumLookup(this.dish.type),
+            progress: progress,
+            duration: new Date().getTime() - startTime,
+            error: error
+        };
+    }
+
+
+    /**
+     * When a browser tab is unfocused and the browser has to run lots of dynamic content in other tabs,
+     * it swaps out the memory for that tab. If the CyberChef tab has been unfocused for more than a
+     * minute, we run a silent bake which will force the browser to load and cache all the relevant
+     * JavaScript code needed to do a real bake.
+     *
+     * This will stop baking taking a long time when the CyberChef browser tab has been unfocused for a
+     * long time and the browser has swapped out all its memory.
+     *
+     * The output will not be modified (hence "silent" bake).
+     *
+     * This will only actually execute the recipe if auto-bake is enabled, otherwise it will just load
+     * the recipe, ingredients and dish.
+     *
+     * @param {Object[]} recipeConfig - The recipe configuration object
+     * @returns {number} The time it took to run the silent bake in milliseconds.
+    */
+    silentBake(recipeConfig) {
+        log.debug("Running silent bake");
+
+        const startTime = new Date().getTime(),
+            recipe = new Recipe(recipeConfig),
+            dish = new Dish();
+
+        try {
+            recipe.execute(dish);
+        } catch (err) {
+            // Suppress all errors
+        }
+        return new Date().getTime() - startTime;
+    }
+
+
+    /**
+     * Calculates highlight offsets if possible.
+     *
+     * @param {Object[]} recipeConfig
+     * @param {string} direction
+     * @param {Object} pos - The position object for the highlight.
+     * @param {number} pos.start - The start offset.
+     * @param {number} pos.end - The end offset.
+     * @returns {Object}
+     */
+    calculateHighlights(recipeConfig, direction, pos) {
+        const recipe = new Recipe(recipeConfig);
+        const highlights = recipe.generateHighlightList();
+
+        if (!highlights) return false;
+
+        for (let i = 0; i < highlights.length; i++) {
+            // Remove multiple highlights before processing again
+            pos = [pos[0]];
+
+            const func = direction === "forward" ? highlights[i].f : highlights[i].b;
+
+            if (typeof func == "function") {
+                pos = func(pos, highlights[i].args);
+            }
+        }
+
+        return {
+            pos: pos,
+            direction: direction
+        };
+    }
+
+
+    /**
+     * Translates the dish to a specified type and returns it.
+     *
+     * @param {Dish} dish
+     * @param {string} type
+     * @returns {Dish}
+     */
+    async getDishAs(dish, type) {
+        const newDish = new Dish(dish);
+        return await newDish.get(type);
+    }
+
+}
+
+export default Chef;

src/core/ChefWorker.js

@@ -7,9 +7,9 @@
  */
 
 import "babel-polyfill";
-import Chef from "./Chef.js";
-import OperationConfig from "./config/MetaConfig.js";
-import OpModules from "./config/modules/Default.js";
+import Chef from "./Chef";
+import OperationConfig from "./config/OperationConfig.json";
+import OpModules from "./config/modules/Default";
 
 // Add ">" to the start of all log messages in the Chef Worker
 import loglevelMessagePrefix from "loglevel-message-prefix";
@@ -60,6 +60,9 @@ self.addEventListener("message", function(e) {
         case "silentBake":
             silentBake(r.data);
             break;
+        case "getDishAs":
+            getDishAs(r.data);
+            break;
         case "docURL":
             // Used to set the URL of the current document so that scripts can be
             // imported into an inline worker.
@@ -88,7 +91,7 @@ self.addEventListener("message", function(e) {
  */
 async function bake(data) {
     // Ensure the relevant modules are loaded
-    loadRequiredModules(data.recipeConfig);
+    self.loadRequiredModules(data.recipeConfig);
 
     try {
         const response = await self.chef.bake(
@@ -126,19 +129,16 @@ function silentBake(data) {
 
 
 /**
- * Checks that all required modules are loaded and loads them if not.
- *
- * @param {Object} recipeConfig
+ * Translates the dish to a given type.
  */
-function loadRequiredModules(recipeConfig) {
-    recipeConfig.forEach(op => {
-        let module = self.OperationConfig[op.op].module;
+async function getDishAs(data) {
+    const value = await self.chef.getDishAs(data.dish, data.type);
 
-        if (!OpModules.hasOwnProperty(module)) {
-            log.info("Loading module " + module);
-            self.sendStatusMessage("Loading module " + module);
-            self.importScripts(self.docURL + "/" + module + ".js");
-            self.sendStatusMessage("");
+    self.postMessage({
+        action: "dishReturned",
+        data: {
+            value: value,
+            id: data.id
         }
     });
 }
@@ -163,6 +163,25 @@ function calculateHighlights(recipeConfig, direction, pos) {
 }
 
 
+/**
+ * Checks that all required modules are loaded and loads them if not.
+ *
+ * @param {Object} recipeConfig
+ */
+self.loadRequiredModules = function(recipeConfig) {
+    recipeConfig.forEach(op => {
+        const module = self.OperationConfig[op.op].module;
+
+        if (!OpModules.hasOwnProperty(module)) {
+            log.info(`Loading ${module} module`);
+            self.sendStatusMessage(`Loading ${module} module`);
+            self.importScripts(`${self.docURL}/${module}.js`);
+            self.sendStatusMessage("");
+        }
+    });
+};
+
+
 /**
  * Send status update to the app.
  *

src/core/Dish.js

@@ -1,274 +0,0 @@
-import Utils from "./Utils.js";
-import BigNumber from "bignumber.js";
-
-/**
- * The data being operated on by each operation.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @author Matt C [matt@artemisbot.uk]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @class
- * @param {byteArray|string|number|ArrayBuffer|BigNumber} value - The value of the input data.
- * @param {number} type - The data type of value, see Dish enums.
- */
-const Dish = function(value, type) {
-    this.value = value || typeof value === "string" ? value : null;
-    this.type = type || Dish.BYTE_ARRAY;
-};
-
-
-/**
- * Dish data type enum for byte arrays.
- * @readonly
- * @enum
- */
-Dish.BYTE_ARRAY = 0;
-/**
- * Dish data type enum for strings.
- * @readonly
- * @enum
- */
-Dish.STRING = 1;
-/**
- * Dish data type enum for numbers.
- * @readonly
- * @enum
- */
-Dish.NUMBER = 2;
-/**
- * Dish data type enum for HTML.
- * @readonly
- * @enum
- */
-Dish.HTML = 3;
-/**
- * Dish data type enum for ArrayBuffers.
- * @readonly
- * @enum
- */
-Dish.ARRAY_BUFFER = 4;
-/**
- * Dish data type enum for BigNumbers.
- * @readonly
- * @enum
- */
-Dish.BIG_NUMBER = 5;
-
-
-/**
- * Returns the data type enum for the given type string.
- *
- * @static
- * @param {string} typeStr - The name of the data type.
- * @returns {number} The data type enum value.
- */
-Dish.typeEnum = function(typeStr) {
-    switch (typeStr.toLowerCase()) {
-        case "bytearray":
-        case "byte array":
-            return Dish.BYTE_ARRAY;
-        case "string":
-            return Dish.STRING;
-        case "number":
-            return Dish.NUMBER;
-        case "html":
-            return Dish.HTML;
-        case "arraybuffer":
-        case "array buffer":
-            return Dish.ARRAY_BUFFER;
-        case "bignumber":
-        case "big number":
-            return Dish.BIG_NUMBER;
-        default:
-            throw "Invalid data type string. No matching enum.";
-    }
-};
-
-
-/**
- * Returns the data type string for the given type enum.
- *
- * @static
- * @param {number} typeEnum - The enum value of the data type.
- * @returns {string} The data type as a string.
- */
-Dish.enumLookup = function(typeEnum) {
-    switch (typeEnum) {
-        case Dish.BYTE_ARRAY:
-            return "byteArray";
-        case Dish.STRING:
-            return "string";
-        case Dish.NUMBER:
-            return "number";
-        case Dish.HTML:
-            return "html";
-        case Dish.ARRAY_BUFFER:
-            return "ArrayBuffer";
-        case Dish.BIG_NUMBER:
-            return "BigNumber";
-        default:
-            throw "Invalid data type enum. No matching type.";
-    }
-};
-
-
-/**
- * Sets the data value and type and then validates them.
- *
- * @param {byteArray|string|number|ArrayBuffer|BigNumber} value - The value of the input data.
- * @param {number} type - The data type of value, see Dish enums.
- */
-Dish.prototype.set = function(value, type) {
-    log.debug("Dish type: " + Dish.enumLookup(type));
-    this.value = value;
-    this.type = type;
-
-    if (!this.valid()) {
-        const sample = Utils.truncate(JSON.stringify(this.value), 13);
-        throw "Data is not a valid " + Dish.enumLookup(type) + ": " + sample;
-    }
-};
-
-
-/**
- * Returns the value of the data in the type format specified.
- *
- * @param {number} type - The data type of value, see Dish enums.
- * @param {boolean} [notUTF8] - Do not treat strings as UTF8.
- * @returns {byteArray|string|number|ArrayBuffer|BigNumber} The value of the output data.
- */
-Dish.prototype.get = function(type, notUTF8) {
-    if (this.type !== type) {
-        this.translate(type, notUTF8);
-    }
-    return this.value;
-};
-
-
-/**
- * Translates the data to the given type format.
- *
- * @param {number} toType - The data type of value, see Dish enums.
- * @param {boolean} [notUTF8] - Do not treat strings as UTF8.
- */
-Dish.prototype.translate = function(toType, notUTF8) {
-    log.debug(`Translating Dish from ${Dish.enumLookup(this.type)} to ${Dish.enumLookup(toType)}`);
-    const byteArrayToStr = notUTF8 ? Utils.byteArrayToChars : Utils.byteArrayToUtf8;
-
-    // Convert data to intermediate byteArray type
-    switch (this.type) {
-        case Dish.STRING:
-            this.value = this.value ? Utils.strToByteArray(this.value) : [];
-            break;
-        case Dish.NUMBER:
-            this.value = typeof this.value == "number" ? Utils.strToByteArray(this.value.toString()) : [];
-            break;
-        case Dish.HTML:
-            this.value = this.value ? Utils.strToByteArray(Utils.unescapeHtml(Utils.stripHtmlTags(this.value, true))) : [];
-            break;
-        case Dish.ARRAY_BUFFER:
-            // Array.from() would be nicer here, but it's slightly slower
-            this.value = Array.prototype.slice.call(new Uint8Array(this.value));
-            break;
-        case Dish.BIG_NUMBER:
-            this.value = this.value instanceof BigNumber ? Utils.strToByteArray(this.value.toFixed()) : [];
-            break;
-        default:
-            break;
-    }
-
-    this.type = Dish.BYTE_ARRAY;
-
-    // Convert from byteArray to toType
-    switch (toType) {
-        case Dish.STRING:
-        case Dish.HTML:
-            this.value = this.value ? byteArrayToStr(this.value) : "";
-            this.type = Dish.STRING;
-            break;
-        case Dish.NUMBER:
-            this.value = this.value ? parseFloat(byteArrayToStr(this.value)) : 0;
-            this.type = Dish.NUMBER;
-            break;
-        case Dish.ARRAY_BUFFER:
-            this.value = new Uint8Array(this.value).buffer;
-            this.type = Dish.ARRAY_BUFFER;
-            break;
-        case Dish.BIG_NUMBER:
-            try {
-                this.value = new BigNumber(byteArrayToStr(this.value));
-            } catch (err) {
-                this.value = new BigNumber(NaN);
-            }
-            this.type = Dish.BIG_NUMBER;
-            break;
-        default:
-            break;
-    }
-};
-
-
-/**
- * Validates that the value is the type that has been specified.
- * May have to disable parts of BYTE_ARRAY validation if it effects performance.
- *
- * @returns {boolean} Whether the data is valid or not.
-*/
-Dish.prototype.valid = function() {
-    switch (this.type) {
-        case Dish.BYTE_ARRAY:
-            if (!(this.value instanceof Array)) {
-                return false;
-            }
-
-            // Check that every value is a number between 0 - 255
-            for (let i = 0; i < this.value.length; i++) {
-                if (typeof this.value[i] !== "number" ||
-                    this.value[i] < 0 ||
-                    this.value[i] > 255) {
-                    return false;
-                }
-            }
-            return true;
-        case Dish.STRING:
-        case Dish.HTML:
-            return typeof this.value === "string";
-        case Dish.NUMBER:
-            return typeof this.value === "number";
-        case Dish.ARRAY_BUFFER:
-            return this.value instanceof ArrayBuffer;
-        case Dish.BIG_NUMBER:
-            return this.value instanceof BigNumber;
-        default:
-            return false;
-    }
-};
-
-
-/**
- * Determines how much space the Dish takes up.
- * Numbers in JavaScript are 64-bit floating point, however for the purposes of the Dish,
- * we measure how many bytes are taken up when the number is written as a string.
- *
- * @returns {number}
-*/
-Dish.prototype.size = function() {
-    switch (this.type) {
-        case Dish.BYTE_ARRAY:
-        case Dish.STRING:
-        case Dish.HTML:
-            return this.value.length;
-        case Dish.NUMBER:
-        case Dish.BIG_NUMBER:
-            return this.value.toString().length;
-        case Dish.ARRAY_BUFFER:
-            return this.value.byteLength;
-        default:
-            return -1;
-    }
-};
-
-
-export default Dish;

src/core/Dish.mjs

@@ -0,0 +1,362 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @author Matt C [matt@artemisbot.uk]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Utils from "./Utils";
+import BigNumber from "bignumber.js";
+import log from "loglevel";
+
+/**
+ * The data being operated on by each operation.
+ */
+class Dish {
+
+    /**
+     * Dish constructor
+     *
+     * @param {Dish} [dish=null] - A dish to clone
+     */
+    constructor(dish=null) {
+        this.value = [];
+        this.type = Dish.BYTE_ARRAY;
+
+        if (dish &&
+            dish.hasOwnProperty("value") &&
+            dish.hasOwnProperty("type")) {
+            this.set(dish.value, dish.type);
+        }
+    }
+
+
+    /**
+     * Returns the data type enum for the given type string.
+     *
+     * @param {string} typeStr - The name of the data type.
+     * @returns {number} The data type enum value.
+     */
+    static typeEnum(typeStr) {
+        switch (typeStr.toLowerCase()) {
+            case "bytearray":
+            case "byte array":
+                return Dish.BYTE_ARRAY;
+            case "string":
+                return Dish.STRING;
+            case "number":
+                return Dish.NUMBER;
+            case "html":
+                return Dish.HTML;
+            case "arraybuffer":
+            case "array buffer":
+                return Dish.ARRAY_BUFFER;
+            case "bignumber":
+            case "big number":
+                return Dish.BIG_NUMBER;
+            case "json":
+                return Dish.JSON;
+            case "file":
+                return Dish.FILE;
+            case "list<file>":
+                return Dish.LIST_FILE;
+            default:
+                throw "Invalid data type string. No matching enum.";
+        }
+    }
+
+
+    /**
+     * Returns the data type string for the given type enum.
+     *
+     * @param {number} typeEnum - The enum value of the data type.
+     * @returns {string} The data type as a string.
+     */
+    static enumLookup(typeEnum) {
+        switch (typeEnum) {
+            case Dish.BYTE_ARRAY:
+                return "byteArray";
+            case Dish.STRING:
+                return "string";
+            case Dish.NUMBER:
+                return "number";
+            case Dish.HTML:
+                return "html";
+            case Dish.ARRAY_BUFFER:
+                return "ArrayBuffer";
+            case Dish.BIG_NUMBER:
+                return "BigNumber";
+            case Dish.JSON:
+                return "JSON";
+            case Dish.FILE:
+                return "File";
+            case Dish.LIST_FILE:
+                return "List<File>";
+            default:
+                throw "Invalid data type enum. No matching type.";
+        }
+    }
+
+
+    /**
+     * Sets the data value and type and then validates them.
+     *
+     * @param {*} value
+     *     - The value of the input data.
+     * @param {number} type
+     *     - The data type of value, see Dish enums.
+     */
+    set(value, type) {
+        if (typeof type === "string") {
+            type = Dish.typeEnum(type);
+        }
+
+        log.debug("Dish type: " + Dish.enumLookup(type));
+        this.value = value;
+        this.type = type;
+
+        if (!this.valid()) {
+            const sample = Utils.truncate(JSON.stringify(this.value), 13);
+            throw "Data is not a valid " + Dish.enumLookup(type) + ": " + sample;
+        }
+    }
+
+
+    /**
+     * Returns the value of the data in the type format specified.
+     *
+     * @param {number} type - The data type of value, see Dish enums.
+     * @param {boolean} [notUTF8=false] - Do not treat strings as UTF8.
+     * @returns {*} - The value of the output data.
+     */
+    async get(type, notUTF8=false) {
+        if (typeof type === "string") {
+            type = Dish.typeEnum(type);
+        }
+        if (this.type !== type) {
+            await this._translate(type, notUTF8);
+        }
+        return this.value;
+    }
+
+
+    /**
+     * Translates the data to the given type format.
+     *
+     * @param {number} toType - The data type of value, see Dish enums.
+     * @param {boolean} [notUTF8=false] - Do not treat strings as UTF8.
+     */
+    async _translate(toType, notUTF8=false) {
+        log.debug(`Translating Dish from ${Dish.enumLookup(this.type)} to ${Dish.enumLookup(toType)}`);
+        const byteArrayToStr = notUTF8 ? Utils.byteArrayToChars : Utils.byteArrayToUtf8;
+
+        // Convert data to intermediate byteArray type
+        switch (this.type) {
+            case Dish.STRING:
+                this.value = this.value ? Utils.strToByteArray(this.value) : [];
+                break;
+            case Dish.NUMBER:
+                this.value = typeof this.value === "number" ? Utils.strToByteArray(this.value.toString()) : [];
+                break;
+            case Dish.HTML:
+                this.value = this.value ? Utils.strToByteArray(Utils.unescapeHtml(Utils.stripHtmlTags(this.value, true))) : [];
+                break;
+            case Dish.ARRAY_BUFFER:
+                // Array.from() would be nicer here, but it's slightly slower
+                this.value = Array.prototype.slice.call(new Uint8Array(this.value));
+                break;
+            case Dish.BIG_NUMBER:
+                this.value = this.value instanceof BigNumber ? Utils.strToByteArray(this.value.toFixed()) : [];
+                break;
+            case Dish.JSON:
+                this.value = this.value ? Utils.strToByteArray(JSON.stringify(this.value)) : [];
+                break;
+            case Dish.FILE:
+                this.value = await Utils.readFile(this.value);
+                this.value = Array.prototype.slice.call(this.value);
+                break;
+            case Dish.LIST_FILE:
+                this.value = await Promise.all(this.value.map(async f => Utils.readFile(f)));
+                this.value = this.value.map(b => Array.prototype.slice.call(b));
+                this.value = [].concat.apply([], this.value);
+                break;
+            default:
+                break;
+        }
+
+        this.type = Dish.BYTE_ARRAY;
+
+        // Convert from byteArray to toType
+        switch (toType) {
+            case Dish.STRING:
+            case Dish.HTML:
+                this.value = this.value ? byteArrayToStr(this.value) : "";
+                this.type = Dish.STRING;
+                break;
+            case Dish.NUMBER:
+                this.value = this.value ? parseFloat(byteArrayToStr(this.value)) : 0;
+                this.type = Dish.NUMBER;
+                break;
+            case Dish.ARRAY_BUFFER:
+                this.value = new Uint8Array(this.value).buffer;
+                this.type = Dish.ARRAY_BUFFER;
+                break;
+            case Dish.BIG_NUMBER:
+                try {
+                    this.value = new BigNumber(byteArrayToStr(this.value));
+                } catch (err) {
+                    this.value = new BigNumber(NaN);
+                }
+                this.type = Dish.BIG_NUMBER;
+                break;
+            case Dish.JSON:
+                this.value = JSON.parse(byteArrayToStr(this.value));
+                this.type = Dish.JSON;
+                break;
+            case Dish.FILE:
+                this.value = new File(this.value, "unknown");
+                break;
+            case Dish.LIST_FILE:
+                this.value = [new File(this.value, "unknown")];
+                this.type = Dish.LIST_FILE;
+                break;
+            default:
+                break;
+        }
+    }
+
+
+    /**
+     * Validates that the value is the type that has been specified.
+     * May have to disable parts of BYTE_ARRAY validation if it effects performance.
+     *
+     * @returns {boolean} Whether the data is valid or not.
+    */
+    valid() {
+        switch (this.type) {
+            case Dish.BYTE_ARRAY:
+                if (!(this.value instanceof Array)) {
+                    return false;
+                }
+
+                // Check that every value is a number between 0 - 255
+                for (let i = 0; i < this.value.length; i++) {
+                    if (typeof this.value[i] !== "number" ||
+                        this.value[i] < 0 ||
+                        this.value[i] > 255) {
+                        return false;
+                    }
+                }
+                return true;
+            case Dish.STRING:
+            case Dish.HTML:
+                return typeof this.value === "string";
+            case Dish.NUMBER:
+                return typeof this.value === "number";
+            case Dish.ARRAY_BUFFER:
+                return this.value instanceof ArrayBuffer;
+            case Dish.BIG_NUMBER:
+                return this.value instanceof BigNumber;
+            case Dish.JSON:
+                // All values can be serialised in some manner, so we return true in all cases
+                return true;
+            case Dish.FILE:
+                return this.value instanceof File;
+            case Dish.LIST_FILE:
+                return this.value instanceof Array &&
+                    this.value.reduce((acc, curr) => acc && curr instanceof File, true);
+            default:
+                return false;
+        }
+    }
+
+
+    /**
+     * Determines how much space the Dish takes up.
+     * Numbers in JavaScript are 64-bit floating point, however for the purposes of the Dish,
+     * we measure how many bytes are taken up when the number is written as a string.
+     *
+     * @returns {number}
+    */
+    get size() {
+        switch (this.type) {
+            case Dish.BYTE_ARRAY:
+            case Dish.STRING:
+            case Dish.HTML:
+                return this.value.length;
+            case Dish.NUMBER:
+            case Dish.BIG_NUMBER:
+                return this.value.toString().length;
+            case Dish.ARRAY_BUFFER:
+                return this.value.byteLength;
+            case Dish.JSON:
+                return JSON.stringify(this.value).length;
+            case Dish.FILE:
+                return this.value.size;
+            case Dish.LIST_FILE:
+                return this.value.reduce((acc, curr) => acc + curr.size, 0);
+            default:
+                return -1;
+        }
+    }
+
+}
+
+
+/**
+ * Dish data type enum for byte arrays.
+ * @readonly
+ * @enum
+ */
+Dish.BYTE_ARRAY = 0;
+/**
+ * Dish data type enum for strings.
+ * @readonly
+ * @enum
+ */
+Dish.STRING = 1;
+/**
+ * Dish data type enum for numbers.
+ * @readonly
+ * @enum
+ */
+Dish.NUMBER = 2;
+/**
+ * Dish data type enum for HTML.
+ * @readonly
+ * @enum
+ */
+Dish.HTML = 3;
+/**
+ * Dish data type enum for ArrayBuffers.
+ * @readonly
+ * @enum
+ */
+Dish.ARRAY_BUFFER = 4;
+/**
+ * Dish data type enum for BigNumbers.
+ * @readonly
+ * @enum
+ */
+Dish.BIG_NUMBER = 5;
+/**
+ * Dish data type enum for JSON.
+ * @readonly
+ * @enum
+ */
+Dish.JSON = 6;
+/**
+ * Dish data type enum for lists of files.
+ * @readonly
+ * @enum
+ */
+Dish.FILE = 7;
+/**
+* Dish data type enum for lists of files.
+* @readonly
+* @enum
+*/
+Dish.LIST_FILE = 8;
+
+
+export default Dish;

src/core/FlowControl.js

@@ -1,289 +0,0 @@
-import Recipe from "./Recipe.js";
-import Dish from "./Dish.js";
-
-
-/**
- * Flow Control operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @namespace
- */
-const FlowControl = {
-
-    /**
-     * Fork operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runFork: async function(state) {
-        let opList       = state.opList,
-            inputType    = opList[state.progress].inputType,
-            outputType   = opList[state.progress].outputType,
-            input        = state.dish.get(inputType),
-            ings         = opList[state.progress].getIngValues(),
-            splitDelim   = ings[0],
-            mergeDelim   = ings[1],
-            ignoreErrors = ings[2],
-            subOpList    = [],
-            inputs       = [],
-            i;
-
-        if (input)
-            inputs = input.split(splitDelim);
-
-        // Create subOpList for each tranche to operate on
-        // (all remaining operations unless we encounter a Merge)
-        for (i = state.progress + 1; i < opList.length; i++) {
-            if (opList[i].name === "Merge" && !opList[i].isDisabled()) {
-                break;
-            } else {
-                subOpList.push(opList[i]);
-            }
-        }
-
-        let recipe = new Recipe(),
-            output = "",
-            progress = 0;
-
-        state.forkOffset += state.progress + 1;
-
-        recipe.addOperations(subOpList);
-
-        // Take a deep(ish) copy of the ingredient values
-        const ingValues = subOpList.map(op => JSON.parse(JSON.stringify(op.getIngValues())));
-
-        // Run recipe over each tranche
-        for (i = 0; i < inputs.length; i++) {
-            log.debug(`Entering tranche ${i + 1} of ${inputs.length}`);
-
-            // Baseline ing values for each tranche so that registers are reset
-            subOpList.forEach((op, i) => {
-                op.setIngValues(JSON.parse(JSON.stringify(ingValues[i])));
-            });
-
-            const dish = new Dish(inputs[i], inputType);
-            try {
-                progress = await recipe.execute(dish, 0, state);
-            } catch (err) {
-                if (!ignoreErrors) {
-                    throw err;
-                }
-                progress = err.progress + 1;
-            }
-            output += dish.get(outputType) + mergeDelim;
-        }
-
-        state.dish.set(output, outputType);
-        state.progress += progress;
-        return state;
-    },
-
-
-    /**
-     * Merge operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runMerge: function(state) {
-        // No need to actually do anything here. The fork operation will
-        // merge when it sees this operation.
-        return state;
-    },
-
-
-    /**
-     * Register operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runRegister: function(state) {
-        const ings = state.opList[state.progress].getIngValues(),
-            extractorStr = ings[0],
-            i = ings[1],
-            m = ings[2];
-
-        let modifiers = "";
-        if (i) modifiers += "i";
-        if (m) modifiers += "m";
-
-        const extractor = new RegExp(extractorStr, modifiers),
-            input = state.dish.get(Dish.STRING),
-            registers = input.match(extractor);
-
-        if (!registers) return state;
-
-        if (ENVIRONMENT_IS_WORKER()) {
-            self.setRegisters(state.forkOffset + state.progress, state.numRegisters, registers.slice(1));
-        }
-
-        /**
-         * Replaces references to registers (e.g. $R0) with the contents of those registers.
-         *
-         * @param {string} str
-         * @returns {string}
-         */
-        function replaceRegister(str) {
-            // Replace references to registers ($Rn) with contents of registers
-            return str.replace(/(\\*)\$R(\d{1,2})/g, (match, slashes, regNum) => {
-                const index = parseInt(regNum, 10) + 1;
-                if (index <= state.numRegisters || index >= state.numRegisters + registers.length)
-                    return match;
-                if (slashes.length % 2 !== 0) return match.slice(1); // Remove escape
-                return slashes + registers[index - state.numRegisters];
-            });
-        }
-
-        // Step through all subsequent ops and replace registers in args with extracted content
-        for (let i = state.progress + 1; i < state.opList.length; i++) {
-            if (state.opList[i].isDisabled()) continue;
-
-            let args = state.opList[i].getIngValues();
-            args = args.map(arg => {
-                if (typeof arg !== "string" && typeof arg !== "object") return arg;
-
-                if (typeof arg === "object" && arg.hasOwnProperty("string")) {
-                    arg.string = replaceRegister(arg.string);
-                    return arg;
-                }
-                return replaceRegister(arg);
-            });
-            state.opList[i].setIngValues(args);
-        }
-
-        state.numRegisters += registers.length - 1;
-        return state;
-    },
-
-
-    /**
-     * Jump operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @param {number} state.numJumps - The number of jumps taken so far.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runJump: function(state) {
-        const ings     = state.opList[state.progress].getIngValues(),
-            label = ings[0],
-            maxJumps = ings[1],
-            jmpIndex = FlowControl._getLabelIndex(label, state);
-
-        if (state.numJumps >= maxJumps || jmpIndex === -1) {
-            log.debug("Maximum jumps reached or label cannot be found");
-            return state;
-        }
-
-        state.progress = jmpIndex;
-        state.numJumps++;
-        log.debug(`Jumping to label '${label}' at position ${jmpIndex} (jumps = ${state.numJumps})`);
-        return state;
-    },
-
-
-    /**
-     * Conditional Jump operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @param {number} state.numJumps - The number of jumps taken so far.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runCondJump: function(state) {
-        const ings     = state.opList[state.progress].getIngValues(),
-            dish     = state.dish,
-            regexStr = ings[0],
-            invert   = ings[1],
-            label    = ings[2],
-            maxJumps = ings[3],
-            jmpIndex = FlowControl._getLabelIndex(label, state);
-
-        if (state.numJumps >= maxJumps || jmpIndex === -1) {
-            log.debug("Maximum jumps reached or label cannot be found");
-            return state;
-        }
-
-        if (regexStr !== "") {
-            let strMatch = dish.get(Dish.STRING).search(regexStr) > -1;
-            if (!invert && strMatch || invert && !strMatch) {
-                state.progress = jmpIndex;
-                state.numJumps++;
-                log.debug(`Jumping to label '${label}' at position ${jmpIndex} (jumps = ${state.numJumps})`);
-            }
-        }
-
-        return state;
-    },
-
-
-    /**
-     * Return operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runReturn: function(state) {
-        state.progress = state.opList.length;
-        return state;
-    },
-
-
-    /**
-     * Comment operation.
-     *
-     * @param {Object} state - The current state of the recipe.
-     * @param {number} state.progress - The current position in the recipe.
-     * @param {Dish} state.dish - The Dish being operated on.
-     * @param {Operation[]} state.opList - The list of operations in the recipe.
-     * @returns {Object} The updated state of the recipe.
-     */
-    runComment: function(state) {
-        return state;
-    },
-
-
-    /**
-     * Returns the index of a label.
-     *
-     * @private
-     * @param {Object} state
-     * @param {string} name
-     * @returns {number}
-     */
-    _getLabelIndex: function(name, state) {
-        for (let o = 0; o < state.opList.length; o++) {
-            let operation = state.opList[o];
-            if (operation.name === "Label"){
-                let ings = operation.getIngValues();
-                if (name === ings[0]) {
-                    return o;
-                }
-            }
-        }
-        return -1;
-    },
-};
-
-export default FlowControl;

src/core/Ingredient.js

@@ -1,92 +0,0 @@
-import Utils from "./Utils.js";
-
-
-/**
- * The arguments to operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @class
- * @param {Object} ingredientConfig
- */
-const Ingredient = function(ingredientConfig) {
-    this.name  = "";
-    this.type  = "";
-    this.value = null;
-
-    if (ingredientConfig) {
-        this._parseConfig(ingredientConfig);
-    }
-};
-
-
-/**
- * Reads and parses the given config.
- *
- * @private
- * @param {Object} ingredientConfig
- */
-Ingredient.prototype._parseConfig = function(ingredientConfig) {
-    this.name = ingredientConfig.name;
-    this.type = ingredientConfig.type;
-};
-
-
-/**
- * Returns the value of the Ingredient as it should be displayed in a recipe config.
- *
- * @returns {*}
- */
-Ingredient.prototype.getConfig = function() {
-    return this.value;
-};
-
-
-/**
- * Sets the value of the Ingredient.
- *
- * @param {*} value
- */
-Ingredient.prototype.setValue = function(value) {
-    this.value = Ingredient.prepare(value, this.type);
-};
-
-
-/**
- * Most values will be strings when they are entered. This function converts them to the correct
- * type.
- *
- * @static
- * @param {*} data
- * @param {string} type - The name of the data type.
-*/
-Ingredient.prepare = function(data, type) {
-    let number;
-
-    switch (type) {
-        case "binaryString":
-        case "binaryShortString":
-        case "editableOption":
-            return Utils.parseEscapedChars(data);
-        case "byteArray":
-            if (typeof data == "string") {
-                data = data.replace(/\s+/g, "");
-                return Utils.fromHex(data);
-            } else {
-                return data;
-            }
-        case "number":
-            number = parseFloat(data);
-            if (isNaN(number)) {
-                const sample = Utils.truncate(data.toString(), 10);
-                throw "Invalid ingredient value. Not a number: " + sample;
-            }
-            return number;
-        default:
-            return data;
-    }
-};
-
-export default Ingredient;

src/core/Ingredient.mjs

@@ -0,0 +1,116 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Utils from "./Utils";
+import {fromHex} from "./lib/Hex";
+
+/**
+ * The arguments to operations.
+ */
+class Ingredient {
+
+    /**
+     * Ingredient constructor
+     *
+     * @param {Object} ingredientConfig
+     */
+    constructor(ingredientConfig) {
+        this.name  = "";
+        this.type  = "";
+        this._value = null;
+        this.disabled = false;
+        this.hint = "";
+        this.toggleValues = [];
+
+        if (ingredientConfig) {
+            this._parseConfig(ingredientConfig);
+        }
+    }
+
+
+    /**
+     * Reads and parses the given config.
+     *
+     * @private
+     * @param {Object} ingredientConfig
+     */
+    _parseConfig(ingredientConfig) {
+        this.name = ingredientConfig.name;
+        this.type = ingredientConfig.type;
+        this.defaultValue = ingredientConfig.value;
+        this.disabled = !!ingredientConfig.disabled;
+        this.hint = ingredientConfig.hint || false;
+        this.toggleValues = ingredientConfig.toggleValues;
+    }
+
+
+    /**
+     * Returns the value of the Ingredient as it should be displayed in a recipe config.
+     *
+     * @returns {*}
+     */
+    get config() {
+        return this._value;
+    }
+
+
+    /**
+     * Sets the value of the Ingredient.
+     *
+     * @param {*} value
+     */
+    set value(value) {
+        this._value = Ingredient.prepare(value, this.type);
+    }
+
+
+    /**
+     * Gets the value of the Ingredient.
+     *
+     * @returns {*}
+     */
+    get value() {
+        return this._value;
+    }
+
+
+    /**
+     * Most values will be strings when they are entered. This function converts them to the correct
+     * type.
+     *
+     * @param {*} data
+     * @param {string} type - The name of the data type.
+    */
+    static prepare(data, type) {
+        let number;
+
+        switch (type) {
+            case "binaryString":
+            case "binaryShortString":
+            case "editableOption":
+                return Utils.parseEscapedChars(data);
+            case "byteArray":
+                if (typeof data == "string") {
+                    data = data.replace(/\s+/g, "");
+                    return fromHex(data);
+                } else {
+                    return data;
+                }
+            case "number":
+                number = parseFloat(data);
+                if (isNaN(number)) {
+                    const sample = Utils.truncate(data.toString(), 10);
+                    throw "Invalid ingredient value. Not a number: " + sample;
+                }
+                return number;
+            default:
+                return data;
+        }
+    }
+
+}
+
+export default Ingredient;

src/core/Operation.js

@@ -1,174 +0,0 @@
-import Dish from "./Dish.js";
-import Ingredient from "./Ingredient.js";
-import OperationConfig from "./config/MetaConfig.js";
-import OpModules from "./config/modules/OpModules.js";
-
-
-/**
- * The Operation specified by the user to be run.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @class
- * @param {string} operationName
- */
-const Operation = function(operationName) {
-    this.name             = operationName;
-    this.module           = "";
-    this.description      = "";
-    this.inputType        = -1;
-    this.outputType       = -1;
-    this.run              = null;
-    this.highlight        = null;
-    this.highlightReverse = null;
-    this.breakpoint       = false;
-    this.disabled         = false;
-    this.ingList          = [];
-
-    if (OperationConfig.hasOwnProperty(this.name)) {
-        this._parseConfig(OperationConfig[this.name]);
-    }
-};
-
-
-/**
- * Reads and parses the given config.
- *
- * @private
- * @param {Object} operationConfig
- */
-Operation.prototype._parseConfig = function(operationConfig) {
-    this.module           = operationConfig.module;
-    this.description      = operationConfig.description;
-    this.inputType        = Dish.typeEnum(operationConfig.inputType);
-    this.outputType       = Dish.typeEnum(operationConfig.outputType);
-    this.highlight        = operationConfig.highlight;
-    this.highlightReverse = operationConfig.highlightReverse;
-    this.flowControl      = operationConfig.flowControl;
-    this.run              = OpModules[this.module][this.name];
-
-    for (let a = 0; a < operationConfig.args.length; a++) {
-        const ingredientConfig = operationConfig.args[a];
-        const ingredient = new Ingredient(ingredientConfig);
-        this.addIngredient(ingredient);
-    }
-
-    if (this.highlight === "func") {
-        this.highlight = OpModules[this.module][`${this.name}-highlight`];
-    }
-
-    if (this.highlightReverse === "func") {
-        this.highlightReverse = OpModules[this.module][`${this.name}-highlightReverse`];
-    }
-};
-
-
-/**
- * Returns the value of the Operation as it should be displayed in a recipe config.
- *
- * @returns {Object}
- */
-Operation.prototype.getConfig = function() {
-    const ingredientConfig = [];
-
-    for (let o = 0; o < this.ingList.length; o++) {
-        ingredientConfig.push(this.ingList[o].getConfig());
-    }
-
-    const operationConfig = {
-        "op": this.name,
-        "args": ingredientConfig
-    };
-
-    return operationConfig;
-};
-
-
-/**
- * Adds a new Ingredient to this Operation.
- *
- * @param {Ingredient} ingredient
- */
-Operation.prototype.addIngredient = function(ingredient) {
-    this.ingList.push(ingredient);
-};
-
-
-/**
- * Set the Ingredient values for this Operation.
- *
- * @param {Object[]} ingValues
- */
-Operation.prototype.setIngValues = function(ingValues) {
-    for (let i = 0; i < ingValues.length; i++) {
-        this.ingList[i].setValue(ingValues[i]);
-    }
-};
-
-
-/**
- * Get the Ingredient values for this Operation.
- *
- * @returns {Object[]}
- */
-Operation.prototype.getIngValues = function() {
-    const ingValues = [];
-    for (let i = 0; i < this.ingList.length; i++) {
-        ingValues.push(this.ingList[i].value);
-    }
-    return ingValues;
-};
-
-
-/**
- * Set whether this Operation has a breakpoint.
- *
- * @param {boolean} value
- */
-Operation.prototype.setBreakpoint = function(value) {
-    this.breakpoint = !!value;
-};
-
-
-/**
- * Returns true if this Operation has a breakpoint set.
- *
- * @returns {boolean}
- */
-Operation.prototype.isBreakpoint = function() {
-    return this.breakpoint;
-};
-
-
-/**
- * Set whether this Operation is disabled.
- *
- * @param {boolean} value
- */
-Operation.prototype.setDisabled = function(value) {
-    this.disabled = !!value;
-};
-
-
-/**
- * Returns true if this Operation is disabled.
- *
- * @returns {boolean}
- */
-Operation.prototype.isDisabled = function() {
-    return this.disabled;
-};
-
-
-/**
- * Returns true if this Operation is a flow control.
- *
- * @returns {boolean}
- */
-Operation.prototype.isFlowControl = function() {
-    return this.flowControl;
-};
-
-export default Operation;

src/core/Operation.mjs

@@ -0,0 +1,292 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Dish from "./Dish";
+import Ingredient from "./Ingredient";
+
+/**
+ * The Operation specified by the user to be run.
+ */
+class Operation {
+
+    /**
+     * Operation constructor
+     */
+    constructor() {
+        // Private fields
+        this._inputType       = -1;
+        this._outputType      = -1;
+        this._presentType     = -1;
+        this._breakpoint      = false;
+        this._disabled        = false;
+        this._flowControl     = false;
+        this._ingList         = [];
+
+        // Public fields
+        this.name             = "";
+        this.module           = "";
+        this.description      = "";
+    }
+
+
+    /**
+     * Interface for operation runner
+     *
+     * @param {*} input
+     * @param {Object[]} args
+     * @returns {*}
+     */
+    run(input, args) {
+        return input;
+    }
+
+
+    /**
+     * Interface for forward highlighter
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return false;
+    }
+
+
+    /**
+     * Interface for reverse highlighter
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return false;
+    }
+
+
+    /**
+     * Method to be called when displaying the result of an operation in a human-readable
+     * format. This allows operations to return usable data from their run() method and
+     * only format them when this method is called.
+     *
+     * The default action is to return the data unchanged, but child classes can override
+     * this behaviour.
+     *
+     * @param {*} data - The result of the run() function
+     * @param {Object[]} args - The operation's arguments
+     * @returns {*} - A human-readable version of the data
+     */
+    present(data, args) {
+        return data;
+    }
+
+
+    /**
+     * Sets the input type as a Dish enum.
+     *
+     * @param {string} typeStr
+     */
+    set inputType(typeStr) {
+        this._inputType = Dish.typeEnum(typeStr);
+    }
+
+
+    /**
+     * Gets the input type as a readable string.
+     *
+     * @returns {string}
+     */
+    get inputType() {
+        return Dish.enumLookup(this._inputType);
+    }
+
+
+    /**
+     * Sets the output type as a Dish enum.
+     *
+     * @param {string} typeStr
+     */
+    set outputType(typeStr) {
+        this._outputType = Dish.typeEnum(typeStr);
+        if (this._presentType < 0) this._presentType = this._outputType;
+    }
+
+
+    /**
+     * Gets the output type as a readable string.
+     *
+     * @returns {string}
+     */
+    get outputType() {
+        return Dish.enumLookup(this._outputType);
+    }
+
+
+    /**
+     * Sets the presentation type as a Dish enum.
+     *
+     * @param {string} typeStr
+     */
+    set presentType(typeStr) {
+        this._presentType = Dish.typeEnum(typeStr);
+    }
+
+
+    /**
+     * Gets the presentation type as a readable string.
+     *
+     * @returns {string}
+     */
+    get presentType() {
+        return Dish.enumLookup(this._presentType);
+    }
+
+
+    /**
+     * Sets the args for the current operation.
+     *
+     * @param {Object[]} conf
+     */
+    set args(conf) {
+        conf.forEach(arg => {
+            const ingredient = new Ingredient(arg);
+            this.addIngredient(ingredient);
+        });
+    }
+
+
+    /**
+     * Gets the args for the current operation.
+     *
+     * @param {Object[]} conf
+     */
+    get args() {
+        return this._ingList.map(ing => {
+            const conf = {
+                name: ing.name,
+                type: ing.type,
+                value: ing.defaultValue
+            };
+
+            if (ing.toggleValues) conf.toggleValues = ing.toggleValues;
+            if (ing.hint) conf.hint = ing.hint;
+            if (ing.disabled) conf.disabled = ing.disabled;
+            return conf;
+        });
+    }
+
+
+    /**
+     * Returns the value of the Operation as it should be displayed in a recipe config.
+     *
+     * @returns {Object}
+     */
+    get config() {
+        return {
+            "op": this.name,
+            "args": this._ingList.map(ing => ing.config)
+        };
+    }
+
+
+    /**
+     * Adds a new Ingredient to this Operation.
+     *
+     * @param {Ingredient} ingredient
+     */
+    addIngredient(ingredient) {
+        this._ingList.push(ingredient);
+    }
+
+
+    /**
+     * Set the Ingredient values for this Operation.
+     *
+     * @param {Object[]} ingValues
+     */
+    set ingValues(ingValues) {
+        ingValues.forEach((val, i) => {
+            this._ingList[i].value = val;
+        });
+    }
+
+
+    /**
+     * Get the Ingredient values for this Operation.
+     *
+     * @returns {Object[]}
+     */
+    get ingValues() {
+        return this._ingList.map(ing => ing.value);
+    }
+
+
+    /**
+     * Set whether this Operation has a breakpoint.
+     *
+     * @param {boolean} value
+     */
+    set breakpoint(value) {
+        this._breakpoint = !!value;
+    }
+
+
+    /**
+     * Returns true if this Operation has a breakpoint set.
+     *
+     * @returns {boolean}
+     */
+    get breakpoint() {
+        return this._breakpoint;
+    }
+
+
+    /**
+     * Set whether this Operation is disabled.
+     *
+     * @param {boolean} value
+     */
+    set disabled(value) {
+        this._disabled = !!value;
+    }
+
+
+    /**
+     * Returns true if this Operation is disabled.
+     *
+     * @returns {boolean}
+     */
+    get disabled() {
+        return this._disabled;
+    }
+
+
+    /**
+     * Returns true if this Operation is a flow control.
+     *
+     * @returns {boolean}
+     */
+    get flowControl() {
+        return this._flowControl;
+    }
+
+    /**
+     * Set whether this Operation is a flowcontrol op.
+     *
+     * @param {boolean} value
+     */
+    set flowControl(value) {
+        this._flowControl = !!value;
+    }
+
+}
+
+export default Operation;

src/core/Recipe.js

@@ -1,264 +0,0 @@
-import Operation from "./Operation.js";
-
-
-/**
- * The Recipe controls a list of Operations and the Dish they operate on.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @class
- * @param {Object} recipeConfig
- */
-const Recipe = function(recipeConfig) {
-    this.opList = [];
-
-    if (recipeConfig) {
-        this._parseConfig(recipeConfig);
-    }
-};
-
-
-/**
- * Reads and parses the given config.
- *
- * @private
- * @param {Object} recipeConfig
- */
-Recipe.prototype._parseConfig = function(recipeConfig) {
-    for (let c = 0; c < recipeConfig.length; c++) {
-        const operationName = recipeConfig[c].op;
-        const operation = new Operation(operationName);
-        operation.setIngValues(recipeConfig[c].args);
-        operation.setBreakpoint(recipeConfig[c].breakpoint);
-        operation.setDisabled(recipeConfig[c].disabled);
-        this.addOperation(operation);
-    }
-};
-
-
-/**
- * Returns the value of the Recipe as it should be displayed in a recipe config.
- *
- * @returns {*}
- */
-Recipe.prototype.getConfig = function() {
-    const recipeConfig = [];
-
-    for (let o = 0; o < this.opList.length; o++) {
-        recipeConfig.push(this.opList[o].getConfig());
-    }
-
-    return recipeConfig;
-};
-
-
-/**
- * Adds a new Operation to this Recipe.
- *
- * @param {Operation} operation
- */
-Recipe.prototype.addOperation = function(operation) {
-    this.opList.push(operation);
-};
-
-
-/**
- * Adds a list of Operations to this Recipe.
- *
- * @param {Operation[]} operations
- */
-Recipe.prototype.addOperations = function(operations) {
-    this.opList = this.opList.concat(operations);
-};
-
-
-/**
- * Set a breakpoint on a specified Operation.
- *
- * @param {number} position - The index of the Operation
- * @param {boolean} value
- */
-Recipe.prototype.setBreakpoint = function(position, value) {
-    try {
-        this.opList[position].setBreakpoint(value);
-    } catch (err) {
-        // Ignore index error
-    }
-};
-
-
-/**
- * Remove breakpoints on all Operations in the Recipe up to the specified position. Used by Flow
- * Control Fork operation.
- *
- * @param {number} pos
- */
-Recipe.prototype.removeBreaksUpTo = function(pos) {
-    for (let i = 0; i < pos; i++) {
-        this.opList[i].setBreakpoint(false);
-    }
-};
-
-
-/**
- * Returns true if there is an Flow Control Operation in this Recipe.
- *
- * @returns {boolean}
- */
-Recipe.prototype.containsFlowControl = function() {
-    for (let i = 0; i < this.opList.length; i++) {
-        if (this.opList[i].isFlowControl()) return true;
-    }
-    return false;
-};
-
-
-/**
- * Returns the index of the last Operation index that will be executed, taking into account disabled
- * Operations and breakpoints.
- *
- * @param {number} [startIndex=0] - The index to start searching from
- * @returns (number}
- */
-Recipe.prototype.lastOpIndex = function(startIndex) {
-    let i = startIndex + 1 || 0,
-        op;
-
-    for (; i < this.opList.length; i++) {
-        op = this.opList[i];
-        if (op.isDisabled()) return i-1;
-        if (op.isBreakpoint()) return i-1;
-    }
-
-    return i-1;
-};
-
-
-/**
- * Executes each operation in the recipe over the given Dish.
- *
- * @param {Dish} dish
- * @param {number} [startFrom=0] - The index of the Operation to start executing from
- * @param {number} [forkState={}] - If this is a forked recipe, the state of the recipe up to this point
- * @returns {number} - The final progress through the recipe
- */
-Recipe.prototype.execute = async function(dish, startFrom = 0, forkState = {}) {
-    let op, input, output,
-        numJumps = 0,
-        numRegisters = forkState.numRegisters || 0;
-
-    log.debug(`[*] Executing recipe of ${this.opList.length} operations, starting at ${startFrom}`);
-
-    for (let i = startFrom; i < this.opList.length; i++) {
-        op = this.opList[i];
-        log.debug(`[${i}] ${op.name} ${JSON.stringify(op.getIngValues())}`);
-        if (op.isDisabled()) {
-            log.debug("Operation is disabled, skipping");
-            continue;
-        }
-        if (op.isBreakpoint()) {
-            log.debug("Pausing at breakpoint");
-            return i;
-        }
-
-        try {
-            input = dish.get(op.inputType);
-            log.debug("Executing operation");
-
-            if (op.isFlowControl()) {
-                // Package up the current state
-                let state = {
-                    "progress":     i,
-                    "dish":         dish,
-                    "opList":       this.opList,
-                    "numJumps":     numJumps,
-                    "numRegisters": numRegisters,
-                    "forkOffset":   forkState.forkOffset || 0
-                };
-
-                state = await op.run(state);
-                i = state.progress;
-                numJumps = state.numJumps;
-                numRegisters = state.numRegisters;
-            } else {
-                output = await op.run(input, op.getIngValues());
-                dish.set(output, op.outputType);
-            }
-        } catch (err) {
-            const e = typeof err == "string" ? { message: err } : err;
-
-            e.progress = i;
-            if (e.fileName) {
-                e.displayStr = op.name + " - " + e.name + " in " +
-                    e.fileName + " on line " + e.lineNumber +
-                    ".<br><br>Message: " + (e.displayStr || e.message);
-            } else {
-                e.displayStr = op.name + " - " + (e.displayStr || e.message);
-            }
-
-            throw e;
-        }
-    }
-
-    log.debug("Recipe complete");
-    return this.opList.length;
-};
-
-
-/**
- * Returns the recipe configuration in string format.
- *
- * @returns {string}
- */
-Recipe.prototype.toString = function() {
-    return JSON.stringify(this.getConfig());
-};
-
-
-/**
- * Creates a Recipe from a given configuration string.
- *
- * @param {string} recipeStr
- */
-Recipe.prototype.fromString = function(recipeStr) {
-    const recipeConfig = JSON.parse(recipeStr);
-    this._parseConfig(recipeConfig);
-};
-
-
-/**
- * Generates a list of all the highlight functions assigned to operations in the recipe, if the
- * entire recipe supports highlighting.
- *
- * @returns {Object[]} highlights
- * @returns {function} highlights[].f
- * @returns {function} highlights[].b
- * @returns {Object[]} highlights[].args
- */
-Recipe.prototype.generateHighlightList = function() {
-    const highlights = [];
-
-    for (let i = 0; i < this.opList.length; i++) {
-        let op = this.opList[i];
-        if (op.isDisabled()) continue;
-
-        // If any breakpoints are set, do not attempt to highlight
-        if (op.isBreakpoint()) return false;
-
-        // If any of the operations do not support highlighting, fail immediately.
-        if (op.highlight === false || op.highlight === undefined) return false;
-
-        highlights.push({
-            f: op.highlight,
-            b: op.highlightReverse,
-            args: op.getIngValues()
-        });
-    }
-
-    return highlights;
-};
-
-
-export default Recipe;

src/core/Recipe.mjs

@@ -0,0 +1,290 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+// import Operation from "./Operation.js";
+import OpModules from "./config/modules/OpModules";
+import OperationConfig from "./config/OperationConfig.json";
+import OperationError from "./errors/OperationError";
+import log from "loglevel";
+
+/**
+ * The Recipe controls a list of Operations and the Dish they operate on.
+ */
+class Recipe  {
+
+    /**
+     * Recipe constructor
+     *
+     * @param {Object} recipeConfig
+     */
+    constructor(recipeConfig) {
+        this.opList = [];
+
+        if (recipeConfig) {
+            this._parseConfig(recipeConfig);
+        }
+    }
+
+
+    /**
+     * Reads and parses the given config.
+     *
+     * @private
+     * @param {Object} recipeConfig
+     */
+    _parseConfig(recipeConfig) {
+        for (let c = 0; c < recipeConfig.length; c++) {
+            const operationName = recipeConfig[c].op;
+            const opConf = OperationConfig[operationName];
+            const opObj = OpModules[opConf.module][operationName];
+            const operation = new opObj();
+            operation.ingValues = recipeConfig[c].args;
+            operation.breakpoint = recipeConfig[c].breakpoint;
+            operation.disabled = recipeConfig[c].disabled;
+            this.addOperation(operation);
+        }
+    }
+
+
+    /**
+     * Returns the value of the Recipe as it should be displayed in a recipe config.
+     *
+     * @returns {Object[]}
+     */
+    get config() {
+        return this.opList.map(op => op.config);
+    }
+
+
+    /**
+     * Adds a new Operation to this Recipe.
+     *
+     * @param {Operation} operation
+     */
+    addOperation(operation) {
+        this.opList.push(operation);
+    }
+
+
+    /**
+     * Adds a list of Operations to this Recipe.
+     *
+     * @param {Operation[]} operations
+     */
+    addOperations(operations) {
+        this.opList = this.opList.concat(operations);
+    }
+
+
+    /**
+     * Set a breakpoint on a specified Operation.
+     *
+     * @param {number} position - The index of the Operation
+     * @param {boolean} value
+     */
+    setBreakpoint(position, value) {
+        try {
+            this.opList[position].breakpoint = value;
+        } catch (err) {
+            // Ignore index error
+        }
+    }
+
+
+    /**
+     * Remove breakpoints on all Operations in the Recipe up to the specified position. Used by Flow
+     * Control Fork operation.
+     *
+     * @param {number} pos
+     */
+    removeBreaksUpTo(pos) {
+        for (let i = 0; i < pos; i++) {
+            this.opList[i].breakpoint = false;
+        }
+    }
+
+
+    /**
+     * Returns true if there is an Flow Control Operation in this Recipe.
+     *
+     * @returns {boolean}
+     */
+    containsFlowControl() {
+        return this.opList.reduce((acc, curr) => {
+            return acc || curr.flowControl;
+        }, false);
+    }
+
+
+    /**
+     * Executes each operation in the recipe over the given Dish.
+     *
+     * @param {Dish} dish
+     * @param {number} [startFrom=0]
+     *     - The index of the Operation to start executing from
+     * @param {number} [forkState={}]
+     *     - If this is a forked recipe, the state of the recipe up to this point
+     * @returns {number}
+     *     - The final progress through the recipe
+     */
+    async execute(dish, startFrom=0, forkState={}) {
+        let op, input, output,
+            numJumps = 0,
+            numRegisters = forkState.numRegisters || 0;
+
+        if (startFrom === 0) this.lastRunOp = null;
+
+        log.debug(`[*] Executing recipe of ${this.opList.length} operations, starting at ${startFrom}`);
+
+        for (let i = startFrom; i < this.opList.length; i++) {
+            op = this.opList[i];
+            log.debug(`[${i}] ${op.name} ${JSON.stringify(op.ingValues)}`);
+            if (op.disabled) {
+                log.debug("Operation is disabled, skipping");
+                continue;
+            }
+            if (op.breakpoint) {
+                log.debug("Pausing at breakpoint");
+                return i;
+            }
+
+            try {
+                input = await dish.get(op.inputType);
+                log.debug("Executing operation");
+
+                if (op.flowControl) {
+                    // Package up the current state
+                    let state = {
+                        "progress":     i,
+                        "dish":         dish,
+                        "opList":       this.opList,
+                        "numJumps":     numJumps,
+                        "numRegisters": numRegisters,
+                        "forkOffset":   forkState.forkOffset || 0
+                    };
+
+                    state = await op.run(state);
+                    i = state.progress;
+                    numJumps = state.numJumps;
+                    numRegisters = state.numRegisters;
+                } else {
+                    output = await op.run(input, op.ingValues);
+                    dish.set(output, op.outputType);
+                }
+                this.lastRunOp = op;
+            } catch (err) {
+                // Return expected errors as output
+                if (err instanceof OperationError ||
+                    (err.type && err.type === "OperationError")) {
+                    // Cannot rely on `err instanceof OperationError` here as extending
+                    // native types is not fully supported yet.
+                    dish.set(err.message, "string");
+                    return i;
+                } else {
+                    const e = typeof err == "string" ? { message: err } : err;
+
+                    e.progress = i;
+                    if (e.fileName) {
+                        e.displayStr = `${op.name} - ${e.name} in ${e.fileName} on line ` +
+                            `${e.lineNumber}.<br><br>Message: ${e.displayStr || e.message}`;
+                    } else {
+                        e.displayStr = `${op.name} - ${e.displayStr || e.message}`;
+                    }
+
+                    throw e;
+                }
+            }
+        }
+
+        log.debug("Recipe complete");
+        return this.opList.length;
+    }
+
+
+    /**
+     * Present the results of the final operation.
+     *
+     * @param {Dish} dish
+     */
+    async present(dish) {
+        if (!this.lastRunOp) return;
+
+        const output = await this.lastRunOp.present(
+            await dish.get(this.lastRunOp.outputType),
+            this.lastRunOp.ingValues
+        );
+        dish.set(output, this.lastRunOp.presentType);
+    }
+
+
+    /**
+     * Returns the recipe configuration in string format.
+     *
+     * @returns {string}
+     */
+    toString() {
+        return JSON.stringify(this.config);
+    }
+
+
+    /**
+     * Creates a Recipe from a given configuration string.
+     *
+     * @param {string} recipeStr
+     */
+    fromString(recipeStr) {
+        const recipeConfig = JSON.parse(recipeStr);
+        this._parseConfig(recipeConfig);
+    }
+
+
+    /**
+     * Generates a list of all the highlight functions assigned to operations in the recipe, if the
+     * entire recipe supports highlighting.
+     *
+     * @returns {Object[]} highlights
+     * @returns {function} highlights[].f
+     * @returns {function} highlights[].b
+     * @returns {Object[]} highlights[].args
+     */
+    generateHighlightList() {
+        const highlights = [];
+
+        for (let i = 0; i < this.opList.length; i++) {
+            const op = this.opList[i];
+            if (op.disabled) continue;
+
+            // If any breakpoints are set, do not attempt to highlight
+            if (op.breakpoint) return false;
+
+            // If any of the operations do not support highlighting, fail immediately.
+            if (op.highlight === false || op.highlight === undefined) return false;
+
+            highlights.push({
+                f: op.highlight,
+                b: op.highlightReverse,
+                args: op.ingValues
+            });
+        }
+
+        return highlights;
+    }
+
+
+    /**
+     * Determines whether the previous operation has a different presentation type to its normal output.
+     *
+     * @param {number} progress
+     * @returns {boolean}
+     */
+    lastOpPresented(progress) {
+        if (progress < 1) return false;
+        return this.opList[progress-1].presentType !== this.opList[progress-1].outputType;
+    }
+
+}
+
+export default Recipe;

src/core/config/Categories.js → src/core/config/Categories.json

@@ -1,30 +1,11 @@
-/**
- * Type definition for a CatConf.
- *
- * @typedef {Object} CatConf
- * @property {string} name - The display name for the category
- * @property {string[]} ops - A list of the operations to be included in this category
- */
-
-
-/**
- * Categories of operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @constant
- * @type {CatConf[]}
- */
-const Categories = [
+[
     {
-        name: "Favourites",
-        ops: []
+        "name": "Favourites",
+        "ops": []
     },
     {
-        name: "Data format",
-        ops: [
+        "name": "Data format",
+        "ops": [
             "To Hexdump",
             "From Hexdump",
             "To Hex",
@@ -52,6 +33,7 @@ const Categories = [
             "From HTML Entity",
             "URL Encode",
             "URL Decode",
+            "Escape Unicode Characters",
             "Unescape Unicode Characters",
             "To Quoted Printable",
             "From Quoted Printable",
@@ -65,12 +47,12 @@ const Categories = [
             "Change IP format",
             "Encode text",
             "Decode text",
-            "Swap endianness",
+            "Swap endianness"
         ]
     },
     {
-        name: "Encryption / Encoding",
-        ops: [
+        "name": "Encryption / Encoding",
+        "ops": [
             "AES Encrypt",
             "AES Decrypt",
             "Blowfish Encrypt",
@@ -99,23 +81,36 @@ const Categories = [
             "Substitute",
             "Derive PBKDF2 key",
             "Derive EVP key",
-            "Pseudo-Random Number Generator",
+            "Bcrypt",
+            "Scrypt",
+            "Pseudo-Random Number Generator"
         ]
     },
     {
-        name: "Public Key",
-        ops: [
+        "name": "Public Key",
+        "ops": [
             "Parse X.509 certificate",
             "Parse ASN.1 hex string",
             "PEM to Hex",
             "Hex to PEM",
             "Hex to Object Identifier",
             "Object Identifier to Hex",
+            "Generate PGP Key Pair",
+            "PGP Encrypt",
+            "PGP Decrypt",
+            "PGP Encrypt and Sign",
+            "PGP Decrypt and Verify"
         ]
     },
     {
-        name: "Arithmetic / Logic",
-        ops: [
+        "name": "Arithmetic / Logic",
+        "ops": [
+            "Set Union",
+            "Set Intersection",
+            "Set Difference",
+            "Symmetric Difference",
+            "Cartesian Product",
+            "Power Set",
             "XOR",
             "XOR Brute Force",
             "OR",
@@ -134,12 +129,12 @@ const Categories = [
             "Bit shift right",
             "Rotate left",
             "Rotate right",
-            "ROT13",
+            "ROT13"
         ]
     },
     {
-        name: "Networking",
-        ops: [
+        "name": "Networking",
+        "ops": [
             "HTTP request",
             "Strip HTTP headers",
             "Parse User Agent",
@@ -153,20 +148,20 @@ const Categories = [
             "Change IP format",
             "Group IP addresses",
             "Encode NetBIOS Name",
-            "Decode NetBIOS Name",
+            "Decode NetBIOS Name"
         ]
     },
     {
-        name: "Language",
-        ops: [
+        "name": "Language",
+        "ops": [
             "Encode text",
             "Decode text",
-            "Unescape Unicode Characters",
+            "Unescape Unicode Characters"
         ]
     },
     {
-        name: "Utils",
-        ops: [
+        "name": "Utils",
+        "ops": [
             "Diff",
             "Remove whitespace",
             "Remove null bytes",
@@ -174,6 +169,7 @@ const Categories = [
             "To Lower case",
             "Add line numbers",
             "Remove line numbers",
+            "To Table",
             "Reverse",
             "Sort",
             "Unique",
@@ -201,12 +197,12 @@ const Categories = [
             "Escape string",
             "Unescape string",
             "Pseudo-Random Number Generator",
-            "Sleep",
+            "Sleep"
         ]
     },
     {
-        name: "Date / Time",
-        ops: [
+        "name": "Date / Time",
+        "ops": [
             "Parse DateTime",
             "Translate DateTime Format",
             "From UNIX Timestamp",
@@ -214,12 +210,12 @@ const Categories = [
             "Windows Filetime to UNIX Timestamp",
             "UNIX Timestamp to Windows Filetime",
             "Extract dates",
-            "Sleep",
+            "Sleep"
         ]
     },
     {
-        name: "Extractors",
-        ops: [
+        "name": "Extractors",
+        "ops": [
             "Strings",
             "Extract IP addresses",
             "Extract email addresses",
@@ -232,12 +228,12 @@ const Categories = [
             "XPath expression",
             "JPath expression",
             "CSS selector",
-            "Extract EXIF",
+            "Extract EXIF"
         ]
     },
     {
-        name: "Compression",
-        ops: [
+        "name": "Compression",
+        "ops": [
             "Raw Deflate",
             "Raw Inflate",
             "Zlib Deflate",
@@ -248,12 +244,12 @@ const Categories = [
             "Unzip",
             "Bzip2 Decompress",
             "Tar",
-            "Untar",
+            "Untar"
         ]
     },
     {
-        name: "Hashing",
-        ops: [
+        "name": "Hashing",
+        "ops": [
             "Analyse hash",
             "Generate all hashes",
             "MD2",
@@ -270,7 +266,15 @@ const Categories = [
             "HAS-160",
             "Whirlpool",
             "Snefru",
+            "SSDEEP",
+            "CTPH",
+            "Compare SSDEEP hashes",
+            "Compare CTPH hashes",
             "HMAC",
+            "Bcrypt",
+            "Bcrypt compare",
+            "Bcrypt parse",
+            "Scrypt",
             "Fletcher-8 Checksum",
             "Fletcher-16 Checksum",
             "Fletcher-32 Checksum",
@@ -278,12 +282,12 @@ const Categories = [
             "Adler-32 Checksum",
             "CRC-16 Checksum",
             "CRC-32 Checksum",
-            "TCP/IP Checksum",
+            "TCP/IP Checksum"
         ]
     },
     {
-        name: "Code tidy",
-        ops: [
+        "name": "Code tidy",
+        "ops": [
             "Syntax highlighter",
             "Generic Code Beautify",
             "JavaScript Parser",
@@ -307,11 +311,13 @@ const Categories = [
             "To Snake case",
             "To Camel case",
             "To Kebab case",
+            "BSON serialise",
+            "BSON deserialise"
         ]
     },
     {
-        name: "Other",
-        ops: [
+        "name": "Other",
+        "ops": [
             "Entropy",
             "Frequency distribution",
             "Chi Square",
@@ -326,12 +332,13 @@ const Categories = [
             "Remove EXIF",
             "Extract EXIF",
             "Numberwang",
-            "XKCD Random Number",
+            "XKCD Random Number"
         ]
     },
     {
-        name: "Flow control",
-        ops: [
+        "name": "Flow control",
+        "ops": [
+            "Magic",
             "Fork",
             "Merge",
             "Register",
@@ -341,7 +348,5 @@ const Categories = [
             "Return",
             "Comment"
         ]
-    },
-];
-
-export default Categories;
+    }
+]

src/core/config/modules/CharEnc.js

@@ -1,21 +0,0 @@
-import CharEnc from "../../operations/CharEnc.js";
-
-
-/**
- * CharEnc module.
- *
- * Libraries:
- *  - cptable
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.CharEnc = {
-    "Encode text": CharEnc.runEncode,
-    "Decode text": CharEnc.runDecode,
-};
-
-export default OpModules;

src/core/config/modules/Ciphers.js

@@ -1,44 +0,0 @@
-import Cipher from "../../operations/Cipher.js";
-
-
-/**
- * Ciphers module.
- *
- * Libraries:
- *  - CryptoJS
- *  - Blowfish
- *  - Forge
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Ciphers = {
-    "AES Encrypt":          Cipher.runAesEnc,
-    "AES Decrypt":          Cipher.runAesDec,
-    "Blowfish Encrypt":     Cipher.runBlowfishEnc,
-    "Blowfish Decrypt":     Cipher.runBlowfishDec,
-    "DES Encrypt":          Cipher.runDesEnc,
-    "DES Decrypt":          Cipher.runDesDec,
-    "Triple DES Encrypt":   Cipher.runTripleDesEnc,
-    "Triple DES Decrypt":   Cipher.runTripleDesDec,
-    "Derive PBKDF2 key":    Cipher.runPbkdf2,
-    "Derive EVP key":       Cipher.runEvpkdf,
-    "RC4":                  Cipher.runRc4,
-    "RC4 Drop":             Cipher.runRc4drop,
-    "RC2 Encrypt":          Cipher.runRc2Enc,
-    "RC2 Decrypt":          Cipher.runRc2Dec,
-    "Vigenère Encode":      Cipher.runVigenereEnc,
-    "Vigenère Decode":      Cipher.runVigenereDec,
-    "Bifid Cipher Encode":  Cipher.runBifidEnc,
-    "Bifid Cipher Decode":  Cipher.runBifidDec,
-    "Affine Cipher Encode": Cipher.runAffineEnc,
-    "Affine Cipher Decode": Cipher.runAffineDec,
-    "Atbash Cipher":        Cipher.runAtbash,
-    "Substitute":           Cipher.runSubstitute,
-    "Pseudo-Random Number Generator": Cipher.runPRNG,
-};
-
-export default OpModules;

src/core/config/modules/Code.js

@@ -1,44 +0,0 @@
-import JS from "../../operations/JS.js";
-import Code from "../../operations/Code.js";
-
-
-/**
- * Code module.
- *
- * Libraries:
- *  - lodash
- *  - vkbeautify
- *  - xmldom
- *  - xpath
- *  - jpath
- *  - highlight.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Code = {
-    "JavaScript Parser":     JS.runParse,
-    "JavaScript Beautify":   JS.runBeautify,
-    "JavaScript Minify":     JS.runMinify,
-    "Syntax highlighter":    Code.runSyntaxHighlight,
-    "Generic Code Beautify": Code.runGenericBeautify,
-    "JSON Beautify":         Code.runJsonBeautify,
-    "JSON Minify":           Code.runJsonMinify,
-    "XML Beautify":          Code.runXmlBeautify,
-    "XML Minify":            Code.runXmlMinify,
-    "SQL Beautify":          Code.runSqlBeautify,
-    "SQL Minify":            Code.runSqlMinify,
-    "CSS Beautify":          Code.runCssBeautify,
-    "CSS Minify":            Code.runCssMinify,
-    "XPath expression":      Code.runXpath,
-    "CSS selector":          Code.runCSSQuery,
-    "To Snake case":         Code.runToSnakeCase,
-    "To Camel case":         Code.runToCamelCase,
-    "To Kebab case":         Code.runToKebabCase,
-    "JPath expression":      Code.runJpath,
-};
-
-export default OpModules;

src/core/config/modules/Compression.js

@@ -1,32 +0,0 @@
-import Compress from "../../operations/Compress.js";
-
-
-/**
- * Compression module.
- *
- * Libraries:
- *  - zlib.js
- *  - bzip2.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Compression = {
-    "Raw Deflate":      Compress.runRawDeflate,
-    "Raw Inflate":      Compress.runRawInflate,
-    "Zlib Deflate":     Compress.runZlibDeflate,
-    "Zlib Inflate":     Compress.runZlibInflate,
-    "Gzip":             Compress.runGzip,
-    "Gunzip":           Compress.runGunzip,
-    "Zip":              Compress.runPkzip,
-    "Unzip":            Compress.runPkunzip,
-    "Bzip2 Decompress": Compress.runBzip2Decompress,
-    "Tar":              Compress.runTar,
-    "Untar":            Compress.runUntar,
-
-};
-
-export default OpModules;

src/core/config/modules/Default.js

@@ -1,197 +0,0 @@
-import FlowControl from "../../FlowControl.js";
-import Arithmetic from "../../operations/Arithmetic.js";
-import Base from "../../operations/Base.js";
-import Base58 from "../../operations/Base58.js";
-import Base64 from "../../operations/Base64.js";
-import BCD from "../../operations/BCD.js";
-import BitwiseOp from "../../operations/BitwiseOp.js";
-import ByteRepr from "../../operations/ByteRepr.js";
-import Convert from "../../operations/Convert.js";
-import DateTime from "../../operations/DateTime.js";
-import Endian from "../../operations/Endian.js";
-import Entropy from "../../operations/Entropy.js";
-import Filetime from "../../operations/Filetime.js";
-import FileType from "../../operations/FileType.js";
-import Hexdump from "../../operations/Hexdump.js";
-import HTML from "../../operations/HTML.js";
-import MAC from "../../operations/MAC.js";
-import MorseCode from "../../operations/MorseCode.js";
-import MS from "../../operations/MS.js";
-import NetBIOS from "../../operations/NetBIOS.js";
-import Numberwang from "../../operations/Numberwang.js";
-import OS from "../../operations/OS.js";
-import OTP from "../../operations/OTP.js";
-import PHP from "../../operations/PHP.js";
-import QuotedPrintable from "../../operations/QuotedPrintable.js";
-import Rotate from "../../operations/Rotate.js";
-import SeqUtils from "../../operations/SeqUtils.js";
-import StrUtils from "../../operations/StrUtils.js";
-import Tidy from "../../operations/Tidy.js";
-import Unicode from "../../operations/Unicode.js";
-import UUID from "../../operations/UUID.js";
-import XKCD from "../../operations/XKCD.js";
-
-
-/**
- * Default module.
- *
- * The Default module is for operations that are expected to be very commonly used or
- * do not require any libraries. This module is loaded into the app at compile time.
- *
- * Libraries:
- *  - Utils.js
- *  - otp
- *  - crypto
- *  - bignumber.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Default = {
-    "To Hexdump":           Hexdump.runTo,
-    "From Hexdump":         Hexdump.runFrom,
-    "To Hex":               ByteRepr.runToHex,
-    "From Hex":             ByteRepr.runFromHex,
-    "To Octal":             ByteRepr.runToOct,
-    "From Octal":           ByteRepr.runFromOct,
-    "To Charcode":          ByteRepr.runToCharcode,
-    "From Charcode":        ByteRepr.runFromCharcode,
-    "To Decimal":           ByteRepr.runToDecimal,
-    "From Decimal":         ByteRepr.runFromDecimal,
-    "To Binary":            ByteRepr.runToBinary,
-    "From Binary":          ByteRepr.runFromBinary,
-    "To Hex Content":       ByteRepr.runToHexContent,
-    "From Hex Content":     ByteRepr.runFromHexContent,
-    "To Base64":            Base64.runTo,
-    "From Base64":          Base64.runFrom,
-    "Show Base64 offsets":  Base64.runOffsets,
-    "To Base32":            Base64.runTo32,
-    "From Base32":          Base64.runFrom32,
-    "To Base58":            Base58.runTo,
-    "From Base58":          Base58.runFrom,
-    "To Base":              Base.runTo,
-    "From Base":            Base.runFrom,
-    "To BCD":               BCD.runToBCD,
-    "From BCD":             BCD.runFromBCD,
-    "To HTML Entity":       HTML.runToEntity,
-    "From HTML Entity":     HTML.runFromEntity,
-    "Strip HTML tags":      HTML.runStripTags,
-    "Parse colour code":    HTML.runParseColourCode,
-    "Unescape Unicode Characters": Unicode.runUnescape,
-    "To Quoted Printable":  QuotedPrintable.runTo,
-    "From Quoted Printable": QuotedPrintable.runFrom,
-    "Swap endianness":      Endian.runSwapEndianness,
-    "ROT13":                Rotate.runRot13,
-    "ROT47":                Rotate.runRot47,
-    "Rotate left":          Rotate.runRotl,
-    "Rotate right":         Rotate.runRotr,
-    "Bit shift left":       BitwiseOp.runBitShiftLeft,
-    "Bit shift right":      BitwiseOp.runBitShiftRight,
-    "XOR":                  BitwiseOp.runXor,
-    "XOR Brute Force":      BitwiseOp.runXorBrute,
-    "OR":                   BitwiseOp.runOr,
-    "NOT":                  BitwiseOp.runNot,
-    "AND":                  BitwiseOp.runAnd,
-    "ADD":                  BitwiseOp.runAdd,
-    "SUB":                  BitwiseOp.runSub,
-    "To Morse Code":        MorseCode.runTo,
-    "From Morse Code":      MorseCode.runFrom,
-    "Format MAC addresses": MAC.runFormat,
-    "Encode NetBIOS Name":  NetBIOS.runEncodeName,
-    "Decode NetBIOS Name":  NetBIOS.runDecodeName,
-    "Offset checker":       StrUtils.runOffsetChecker,
-    "To Upper case":        StrUtils.runUpper,
-    "To Lower case":        StrUtils.runLower,
-    "Split":                StrUtils.runSplit,
-    "Filter":               StrUtils.runFilter,
-    "Escape string":        StrUtils.runEscape,
-    "Unescape string":      StrUtils.runUnescape,
-    "Head":                 StrUtils.runHead,
-    "Tail":                 StrUtils.runTail,
-    "Hamming Distance":     StrUtils.runHamming,
-    "Remove whitespace":    Tidy.runRemoveWhitespace,
-    "Remove null bytes":    Tidy.runRemoveNulls,
-    "Drop bytes":           Tidy.runDropBytes,
-    "Take bytes":           Tidy.runTakeBytes,
-    "Pad lines":            Tidy.runPad,
-    "Reverse":              SeqUtils.runReverse,
-    "Sort":                 SeqUtils.runSort,
-    "Unique":               SeqUtils.runUnique,
-    "Count occurrences":    SeqUtils.runCount,
-    "Add line numbers":     SeqUtils.runAddLineNumbers,
-    "Remove line numbers":  SeqUtils.runRemoveLineNumbers,
-    "Expand alphabet range": SeqUtils.runExpandAlphRange,
-    "Convert distance":     Convert.runDistance,
-    "Convert area":         Convert.runArea,
-    "Convert mass":         Convert.runMass,
-    "Convert speed":        Convert.runSpeed,
-    "Convert data units":   Convert.runDataSize,
-    "Parse UNIX file permissions": OS.runParseUnixPerms,
-    "Parse DateTime":       DateTime.runParse,
-    "Translate DateTime Format": DateTime.runTranslateFormat,
-    "From UNIX Timestamp":  DateTime.runFromUnixTimestamp,
-    "To UNIX Timestamp":    DateTime.runToUnixTimestamp,
-    "Sleep":                DateTime.runSleep,
-    "Microsoft Script Decoder": MS.runDecodeScript,
-    "Entropy":              Entropy.runEntropy,
-    "Frequency distribution": Entropy.runFreqDistrib,
-    "Chi Square":           Entropy.runChiSq,
-    "Detect File Type":     FileType.runDetect,
-    "Scan for Embedded Files": FileType.runScanForEmbeddedFiles,
-    "Generate UUID":        UUID.runGenerateV4,
-    "Numberwang":           Numberwang.run,
-    "Generate TOTP":        OTP.runTOTP,
-    "Generate HOTP":        OTP.runHOTP,
-    "Fork":                 FlowControl.runFork,
-    "Merge":                FlowControl.runMerge,
-    "Register":             FlowControl.runRegister,
-    "Label":                FlowControl.runComment,
-    "Jump":                 FlowControl.runJump,
-    "Conditional Jump":     FlowControl.runCondJump,
-    "Return":               FlowControl.runReturn,
-    "Comment":              FlowControl.runComment,
-    "PHP Deserialize":      PHP.runDeserialize,
-    "Sum":                  Arithmetic.runSum,
-    "Subtract":             Arithmetic.runSub,
-    "Multiply":             Arithmetic.runMulti,
-    "Divide":               Arithmetic.runDiv,
-    "Mean":                 Arithmetic.runMean,
-    "Median":               Arithmetic.runMedian,
-    "Standard Deviation":   Arithmetic.runStdDev,
-    "Windows Filetime to UNIX Timestamp": Filetime.runFromFiletimeToUnix,
-    "UNIX Timestamp to Windows Filetime": Filetime.runToFiletimeFromUnix,
-    "XKCD Random Number":  XKCD.runRandomNumber,
-
-
-    /*
-        Highlighting functions.
-
-        This is a temporary solution as highlighting should be entirely
-        overhauled at some point.
-    */
-    "From Base64-highlight":          Base64.highlightFrom,
-    "From Base64-highlightReverse":   Base64.highlightTo,
-    "To Base64-highlight":            Base64.highlightTo,
-    "To Base64-highlightReverse":     Base64.highlightFrom,
-    "From Hex-highlight":             ByteRepr.highlightFrom,
-    "From Hex-highlightReverse":      ByteRepr.highlightTo,
-    "To Hex-highlight":               ByteRepr.highlightTo,
-    "To Hex-highlightReverse":        ByteRepr.highlightFrom,
-    "From Charcode-highlight":        ByteRepr.highlightFrom,
-    "From Charcode-highlightReverse": ByteRepr.highlightTo,
-    "To Charcode-highlight":          ByteRepr.highlightTo,
-    "To Charcode-highlightReverse":   ByteRepr.highlightFrom,
-    "From Binary-highlight":          ByteRepr.highlightFromBinary,
-    "From Binary-highlightReverse":   ByteRepr.highlightToBinary,
-    "To Binary-highlight":            ByteRepr.highlightToBinary,
-    "To Binary-highlightReverse":     ByteRepr.highlightFromBinary,
-    "From Hexdump-highlight":         Hexdump.highlightFrom,
-    "From Hexdump-highlightReverse":  Hexdump.highlightTo,
-    "To Hexdump-highlight":           Hexdump.highlightTo,
-    "To Hexdump-highlightReverse":    Hexdump.highlightFrom,
-};
-
-export default OpModules;

src/core/config/modules/Diff.js

@@ -1,20 +0,0 @@
-import Diff from "../../operations/Diff.js";
-
-
-/**
- * Diff module.
- *
- * Libraries:
- *  - JsDIff
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Diff = {
-    "Diff": Diff.runDiff,
-};
-
-export default OpModules;

src/core/config/modules/Encodings.js

@@ -1,21 +0,0 @@
-import Punycode from "../../operations/Punycode.js";
-
-
-/**
- * Encodings module.
- *
- * Libraries:
- *  - punycode
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Encodings = {
-    "To Punycode":   Punycode.runToAscii,
-    "From Punycode": Punycode.runToUnicode,
-};
-
-export default OpModules;

src/core/config/modules/HTTP.js

@@ -1,22 +0,0 @@
-import HTTP from "../../operations/HTTP.js";
-
-
-/**
- * HTTP module.
- *
- * Libraries:
- *  - UAS_parser
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.HTTP = {
-    "HTTP request":       HTTP.runHTTPRequest,
-    "Strip HTTP headers": HTTP.runStripHeaders,
-    "Parse User Agent":   HTTP.runParseUserAgent,
-};
-
-export default OpModules;

src/core/config/modules/Hashing.js

@@ -1,48 +0,0 @@
-import Checksum from "../../operations/Checksum.js";
-import Hash from "../../operations/Hash.js";
-
-
-/**
- * Hashing module.
- *
- * Libraries:
- *  - CryptoApi
- *  - node-md6
- *  - js-sha3
- *  - ./Checksum.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Hashing = {
-    "Analyse hash":         Hash.runAnalyse,
-    "Generate all hashes":  Hash.runAll,
-    "MD2":                  Hash.runMD2,
-    "MD4":                  Hash.runMD4,
-    "MD5":                  Hash.runMD5,
-    "MD6":                  Hash.runMD6,
-    "SHA0":                 Hash.runSHA0,
-    "SHA1":                 Hash.runSHA1,
-    "SHA2":                 Hash.runSHA2,
-    "SHA3":                 Hash.runSHA3,
-    "Keccak":               Hash.runKeccak,
-    "Shake":                Hash.runShake,
-    "RIPEMD":               Hash.runRIPEMD,
-    "HAS-160":              Hash.runHAS,
-    "Whirlpool":            Hash.runWhirlpool,
-    "Snefru":               Hash.runSnefru,
-    "HMAC":                 Hash.runHMAC,
-    "Fletcher-8 Checksum":  Checksum.runFletcher8,
-    "Fletcher-16 Checksum": Checksum.runFletcher16,
-    "Fletcher-32 Checksum": Checksum.runFletcher32,
-    "Fletcher-64 Checksum": Checksum.runFletcher64,
-    "Adler-32 Checksum":    Checksum.runAdler32,
-    "CRC-16 Checksum":      Checksum.runCRC16,
-    "CRC-32 Checksum":      Checksum.runCRC32,
-    "TCP/IP Checksum":      Checksum.runTCPIP,
-};
-
-export default OpModules;

src/core/config/modules/Image.js

@@ -1,25 +0,0 @@
-import Image from "../../operations/Image.js";
-
-
-/**
- * Image module.
- *
- * Libraries:
- *  - exif-parser
- *  - remove-exif
- *  - ./FileType.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Image = {
-    "Extract EXIF": Image.runExtractEXIF,
-    "Remove EXIF":  Image.runRemoveEXIF,
-    "Render Image": Image.runRenderImage,
-
-};
-
-export default OpModules;

src/core/config/modules/JSBN.js

@@ -1,25 +0,0 @@
-import IP from "../../operations/IP.js";
-
-
-/**
- * JSBN module.
- *
- * Libraries:
- *  - jsbn
- *  - ./Checksum.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.JSBN = {
-    "Parse IP range":     IP.runParseIpRange,
-    "Parse IPv6 address": IP.runParseIPv6,
-    "Parse IPv4 header":  IP.runParseIPv4Header,
-    "Change IP format":   IP.runChangeIpFormat,
-    "Group IP addresses": IP.runGroupIps,
-};
-
-export default OpModules;

src/core/config/modules/OpModules.js

@@ -1,43 +0,0 @@
-/**
- * Imports all modules for builds which do not load modules separately.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-
-import OpModules from "./Default.js";
-import CharEncModule from "./CharEnc.js";
-import CipherModule from "./Ciphers.js";
-import CodeModule from "./Code.js";
-import CompressionModule from "./Compression.js";
-import DiffModule from "./Diff.js";
-import EncodingModule from "./Encodings.js";
-import HashingModule from "./Hashing.js";
-import HTTPModule from "./HTTP.js";
-import ImageModule from "./Image.js";
-import JSBNModule from "./JSBN.js";
-import PublicKeyModule from "./PublicKey.js";
-import RegexModule from "./Regex.js";
-import ShellcodeModule from "./Shellcode.js";
-import URLModule from "./URL.js";
-
-Object.assign(
-    OpModules,
-    CharEncModule,
-    CipherModule,
-    CodeModule,
-    CompressionModule,
-    DiffModule,
-    EncodingModule,
-    HashingModule,
-    HTTPModule,
-    ImageModule,
-    JSBNModule,
-    PublicKeyModule,
-    RegexModule,
-    ShellcodeModule,
-    URLModule
-);
-
-export default OpModules;

src/core/config/modules/PublicKey.js

@@ -1,25 +0,0 @@
-import PublicKey from "../../operations/PublicKey.js";
-
-
-/**
- * PublicKey module.
- *
- * Libraries:
- *  - jsrsasign
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.PublicKey = {
-    "Parse X.509 certificate":  PublicKey.runParseX509,
-    "Parse ASN.1 hex string":   PublicKey.runParseAsn1HexString,
-    "PEM to Hex":               PublicKey.runPemToHex,
-    "Hex to PEM":               PublicKey.runHexToPem,
-    "Hex to Object Identifier": PublicKey.runHexToObjectIdentifier,
-    "Object Identifier to Hex": PublicKey.runObjectIdentifierToHex,
-};
-
-export default OpModules;

src/core/config/modules/Regex.js

@@ -1,30 +0,0 @@
-import Extract from "../../operations/Extract.js";
-import Regex from "../../operations/Regex.js";
-
-
-/**
- * Regex module.
- *
- * Libraries:
- *  - XRegExp
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2018
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Regex = {
-    "Regular expression":   Regex.runRegex,
-    "Find / Replace":       Regex.runFindReplace,
-    "Strings":              Extract.runStrings,
-    "Extract IP addresses": Extract.runIp,
-    "Extract email addresses": Extract.runEmail,
-    "Extract MAC addresses": Extract.runMac,
-    "Extract URLs":         Extract.runUrls,
-    "Extract domains":      Extract.runDomains,
-    "Extract file paths":   Extract.runFilePaths,
-    "Extract dates":        Extract.runDates,
-};
-
-export default OpModules;

src/core/config/modules/Shellcode.js

@@ -1,20 +0,0 @@
-import Shellcode from "../../operations/Shellcode.js";
-
-
-/**
- * Shellcode module.
- *
- * Libraries:
- *  - DisassembleX86-64.js
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.Shellcode = {
-    "Disassemble x86": Shellcode.runDisassemble,
-};
-
-export default OpModules;

src/core/config/modules/URL.js

@@ -1,23 +0,0 @@
-import URL_ from "../../operations/URL.js";
-
-
-/**
- * URL module.
- *
- * Libraries:
- *  - Utils.js
- *  - url
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2017
- * @license Apache-2.0
- */
-let OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
-
-OpModules.URL = {
-    "URL Encode": URL_.runTo,
-    "URL Decode": URL_.runFrom,
-    "Parse URI":  URL_.runParse,
-};
-
-export default OpModules;

src/core/config/scripts/generateConfig.mjs

@@ -0,0 +1,148 @@
+/**
+ * This script automatically generates OperationConfig.json, containing metadata
+ * for each operation in the src/core/operations directory.
+ * It also generates modules in the src/core/config/modules directory to separate
+ * out operations into logical collections.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+/*eslint no-console: ["off"] */
+
+import path from "path";
+import fs  from "fs";
+import process from "process";
+import * as Ops from "../../operations/index";
+
+const dir = path.join(process.cwd() + "/src/core/config/");
+if (!fs.existsSync(dir)) {
+    console.log("\nCWD: " + process.cwd());
+    console.log("Error: generateConfig.mjs should be run from the project root");
+    console.log("Example> node --experimental-modules src/core/config/scripts/generateConfig.mjs");
+    process.exit(1);
+}
+
+
+const operationConfig = {},
+    modules = {};
+
+/**
+ * Generate operation config and module lists.
+ */
+for (const opObj in Ops) {
+    const op = new Ops[opObj]();
+
+    operationConfig[op.name] = {
+        module: op.module,
+        description: op.description,
+        inputType: op.inputType,
+        outputType: op.presentType,
+        flowControl: op.flowControl,
+        args: op.args
+    };
+
+    if (op.hasOwnProperty("patterns")) {
+        operationConfig[op.name].patterns = op.patterns;
+    }
+
+    if (!modules.hasOwnProperty(op.module))
+        modules[op.module] = {};
+    modules[op.module][op.name] = opObj;
+}
+
+
+/**
+ * Write OperationConfig.
+ */
+fs.writeFileSync(
+    path.join(dir, "OperationConfig.json"),
+    JSON.stringify(operationConfig, null, 4)
+);
+console.log("Written OperationConfig.json");
+
+
+/**
+ * Write modules.
+ */
+if (!fs.existsSync(path.join(dir, "modules/"))) {
+    fs.mkdirSync(path.join(dir, "modules/"));
+}
+
+for (const module in modules) {
+    let code = `/**
+* THIS FILE IS AUTOMATICALLY GENERATED BY src/core/config/scripts/generateConfig.mjs
+*
+* @author n1474335 [n1474335@gmail.com]
+* @copyright Crown Copyright ${new Date().getUTCFullYear()}
+* @license Apache-2.0
+*/
+`;
+
+    for (const opName in modules[module]) {
+        const objName = modules[module][opName];
+        code += `import ${objName} from "../../operations/${objName}";\n`;
+    }
+
+    code += `
+const OpModules = typeof self === "undefined" ? {} : self.OpModules || {};
+
+OpModules.${module} = {
+`;
+    for (const opName in modules[module]) {
+        const objName = modules[module][opName];
+        code += `    "${opName}": ${objName},\n`;
+    }
+
+    code += `};
+
+export default OpModules;
+`;
+    fs.writeFileSync(
+        path.join(dir, `modules/${module}.mjs`),
+        code
+    );
+    console.log(`Written ${module} module`);
+}
+
+
+/**
+ * Write OpModules wrapper.
+ */
+let opModulesCode = `/**
+* THIS FILE IS AUTOMATICALLY GENERATED BY src/core/config/scripts/generateConfig.mjs
+*
+* Imports all modules for builds which do not load modules separately.
+*
+* @author n1474335 [n1474335@gmail.com]
+* @copyright Crown Copyright ${new Date().getUTCFullYear()}
+* @license Apache-2.0
+*/
+`;
+
+for (const module in modules) {
+    opModulesCode += `import ${module}Module from "./${module}";\n`;
+}
+
+opModulesCode += `
+const OpModules = {};
+
+Object.assign(
+    OpModules,
+`;
+
+for (const module in modules) {
+    opModulesCode += `    ${module}Module,\n`;
+}
+
+opModulesCode += `);
+
+export default OpModules;
+`;
+
+fs.writeFileSync(
+    path.join(dir, "modules/OpModules.mjs"),
+    opModulesCode
+);
+console.log("Written OpModules.mjs");

src/core/config/scripts/generateOpsIndex.mjs

@@ -0,0 +1,60 @@
+/**
+ * This script automatically generates src/core/operations/index.mjs, containing
+ * imports for all operations in src/core/operations.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+/*eslint no-console: ["off"] */
+
+import path from "path";
+import fs  from "fs";
+import process from "process";
+
+const dir = path.join(process.cwd() + "/src/core/config/");
+if (!fs.existsSync(dir)) {
+    console.log("\nCWD: " + process.cwd());
+    console.log("Error: generateOpsIndex.mjs should be run from the project root");
+    console.log("Example> node --experimental-modules src/core/config/scripts/generateOpsIndex.mjs");
+    process.exit(1);
+}
+
+// Find all operation files
+const opObjs = [];
+fs.readdirSync(path.join(dir, "../operations")).forEach(file => {
+    if (!file.endsWith(".mjs") || file === "index.mjs") return;
+    opObjs.push(file.split(".mjs")[0]);
+});
+
+// Construct index file
+let code = `/**
+* THIS FILE IS AUTOMATICALLY GENERATED BY src/core/config/scripts/generateOpsIndex.mjs
+*
+* @author n1474335 [n1474335@gmail.com]
+* @copyright Crown Copyright ${new Date().getUTCFullYear()}
+* @license Apache-2.0
+*/
+`;
+
+opObjs.forEach(obj => {
+    code += `import ${obj} from "./${obj}";\n`;
+});
+
+code += `
+export {
+`;
+
+opObjs.forEach(obj => {
+    code += `    ${obj},\n`;
+});
+
+code += "};\n";
+
+// Write file
+fs.writeFileSync(
+    path.join(dir, "../operations/index.mjs"),
+    code
+);
+console.log("Written operation index.");

src/core/errors/OperationError.mjs

@@ -0,0 +1,26 @@
+/**
+ * Custom error type for handling operation input errors.
+ * i.e. where the operation can handle the error and print a message to the screen.
+ *
+ * @author d98762625 [d98762625@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+class OperationError extends Error {
+    /**
+     * Standard error constructor. Adds no new behaviour.
+     *
+     * @param args - Standard error args
+     */
+    constructor(...args) {
+        super(...args);
+
+        this.type = "OperationError";
+
+        if (Error.captureStackTrace) {
+            Error.captureStackTrace(this, OperationError);
+        }
+    }
+}
+
+export default OperationError;

src/core/lib/Arithmetic.mjs

@@ -0,0 +1,139 @@
+/**
+ * @author bwhitn [brian.m.whitney@outlook.com]
+ * @author d98762625 [d98762625@gmailcom]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Utils from "../Utils";
+import BigNumber from "bignumber.js";
+
+
+/**
+ * Converts a string array to a number array.
+ *
+ * @param {string[]} input
+ * @param {string} delim
+ * @returns {BigNumber[]}
+ */
+export function createNumArray(input, delim) {
+    delim = Utils.charRep(delim || "Space");
+    const splitNumbers = input.split(delim);
+    const numbers = [];
+    let num;
+
+    splitNumbers.map((number) => {
+        try {
+            num = BigNumber(number.trim());
+            if (!num.isNaN()) {
+                numbers.push(num);
+            }
+        } catch (err) {
+            // This line is not a valid number
+        }
+    });
+    return numbers;
+}
+
+
+/**
+ * Adds an array of numbers and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function sum(data) {
+    if (data.length > 0) {
+        return data.reduce((acc, curr) => acc.plus(curr));
+    }
+}
+
+
+/**
+ * Subtracts an array of numbers and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function sub(data) {
+    if (data.length > 0) {
+        return data.reduce((acc, curr) => acc.minus(curr));
+    }
+}
+
+
+/**
+ * Multiplies an array of numbers and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function multi(data) {
+    if (data.length > 0) {
+        return data.reduce((acc, curr) => acc.times(curr));
+    }
+}
+
+
+/**
+ * Divides an array of numbers and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function div(data) {
+    if (data.length > 0) {
+        return data.reduce((acc, curr) => acc.div(curr));
+    }
+}
+
+
+/**
+ * Computes mean of a number array and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function mean(data) {
+    if (data.length > 0) {
+        return sum(data).div(data.length);
+    }
+}
+
+
+/**
+ * Computes median of a number array and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function median(data) {
+    if ((data.length % 2) === 0 && data.length > 0) {
+        data.sort(function(a, b){
+            return a.minus(b);
+        });
+        const first = data[Math.floor(data.length / 2)];
+        const second = data[Math.floor(data.length / 2) - 1];
+        return mean([first, second]);
+    } else {
+        return data[Math.floor(data.length / 2)];
+    }
+}
+
+
+/**
+ * Computes standard deviation of a number array and returns the value.
+ *
+ * @param {BigNumber[]} data
+ * @returns {BigNumber}
+ */
+export function stdDev(data) {
+    if (data.length > 0) {
+        const avg = mean(data);
+        let devSum = new BigNumber(0);
+        data.map((datum) => {
+            devSum = devSum.plus(datum.minus(avg).pow(2));
+        });
+        return devSum.div(data.length).sqrt();
+    }
+}

src/core/lib/BCD.mjs

@@ -0,0 +1,48 @@
+/**
+ * Binary Code Decimal resources.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2017
+ * @license Apache-2.0
+ */
+
+/**
+ * BCD encoding schemes.
+ */
+export const ENCODING_SCHEME = [
+    "8 4 2 1",
+    "7 4 2 1",
+    "4 2 2 1",
+    "2 4 2 1",
+    "8 4 -2 -1",
+    "Excess-3",
+    "IBM 8 4 2 1",
+];
+
+/**
+ * Lookup table for the binary value of each digit representation.
+ *
+ * I wrote a very nice algorithm to generate 8 4 2 1 encoding programatically,
+ * but unfortunately it's much easier (if less elegant) to use lookup tables
+ * when supporting multiple encoding schemes.
+ *
+ * "Practicality beats purity" - PEP 20
+ *
+ * In some schemes it is possible to represent the same value in multiple ways.
+ * For instance, in 4 2 2 1 encoding, 0100 and 0010 both represent 2. Support
+ * has not yet been added for this.
+ */
+export const ENCODING_LOOKUP = {
+    "8 4 2 1":     [0,  1,  2,  3,  4,  5,  6,  7,  8,  9],
+    "7 4 2 1":     [0,  1,  2,  3,  4,  5,  6,  8,  9,  10],
+    "4 2 2 1":     [0,  1,  4,  5,  8,  9,  12, 13, 14, 15],
+    "2 4 2 1":     [0,  1,  2,  3,  4,  11, 12, 13, 14, 15],
+    "8 4 -2 -1":   [0,  7,  6,  5,  4,  11, 10, 9,  8,  15],
+    "Excess-3":    [3,  4,  5,  6,  7,  8,  9,  10, 11, 12],
+    "IBM 8 4 2 1": [10, 1,  2,  3,  4,  5,  6,  7,  8,  9],
+};
+
+/**
+ * BCD formats.
+ */
+export const FORMAT = ["Nibbles", "Bytes", "Raw"];

src/core/lib/Base58.mjs

@@ -0,0 +1,22 @@
+/**
+ * Base58 resources.
+ *
+ * @author tlwr [toby@toby.codes]
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2017
+ * @license Apache-2.0
+ */
+
+/**
+ * Base58 alphabet options.
+ */
+export const ALPHABET_OPTIONS = [
+    {
+        name: "Bitcoin",
+        value: "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz",
+    },
+    {
+        name: "Ripple",
+        value: "rpshnaf39wBUDNEGHJKLM4PQRST7VWXYZ2bcdeCg65jkm8oFqi1tuvAxyz",
+    },
+];

src/core/lib/Base64.mjs

@@ -0,0 +1,141 @@
+/**
+ * Base64 functions.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Utils from "../Utils";
+
+
+/**
+ * Base64's the input byte array using the given alphabet, returning a string.
+ *
+ * @param {byteArray|Uint8Array|string} data
+ * @param {string} [alphabet="A-Za-z0-9+/="]
+ * @returns {string}
+ *
+ * @example
+ * // returns "SGVsbG8="
+ * toBase64([72, 101, 108, 108, 111]);
+ *
+ * // returns "SGVsbG8="
+ * toBase64("Hello");
+ */
+export function toBase64(data, alphabet="A-Za-z0-9+/=") {
+    if (!data) return "";
+    if (typeof data == "string") {
+        data = Utils.strToByteArray(data);
+    }
+
+    alphabet = Utils.expandAlphRange(alphabet).join("");
+
+    let output = "",
+        chr1, chr2, chr3,
+        enc1, enc2, enc3, enc4,
+        i = 0;
+
+    while (i < data.length) {
+        chr1 = data[i++];
+        chr2 = data[i++];
+        chr3 = data[i++];
+
+        enc1 = chr1 >> 2;
+        enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+        enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
+        enc4 = chr3 & 63;
+
+        if (isNaN(chr2)) {
+            enc3 = enc4 = 64;
+        } else if (isNaN(chr3)) {
+            enc4 = 64;
+        }
+
+        output += alphabet.charAt(enc1) + alphabet.charAt(enc2) +
+            alphabet.charAt(enc3) + alphabet.charAt(enc4);
+    }
+
+    return output;
+}
+
+
+/**
+ * UnBase64's the input string using the given alphabet, returning a byte array.
+ *
+ * @param {byteArray} data
+ * @param {string} [alphabet="A-Za-z0-9+/="]
+ * @param {string} [returnType="string"] - Either "string" or "byteArray"
+ * @param {boolean} [removeNonAlphChars=true]
+ * @returns {byteArray}
+ *
+ * @example
+ * // returns "Hello"
+ * fromBase64("SGVsbG8=");
+ *
+ * // returns [72, 101, 108, 108, 111]
+ * fromBase64("SGVsbG8=", null, "byteArray");
+ */
+export function fromBase64(data, alphabet="A-Za-z0-9+/=", returnType="string", removeNonAlphChars=true) {
+    if (!data) {
+        return returnType === "string" ? "" : [];
+    }
+
+    alphabet = Utils.expandAlphRange(alphabet).join("");
+
+    const output = [];
+    let chr1, chr2, chr3,
+        enc1, enc2, enc3, enc4,
+        i = 0;
+
+    if (removeNonAlphChars) {
+        const re = new RegExp("[^" + alphabet.replace(/[[\]\\\-^$]/g, "\\$&") + "]", "g");
+        data = data.replace(re, "");
+    }
+
+    while (i < data.length) {
+        enc1 = alphabet.indexOf(data.charAt(i++));
+        enc2 = alphabet.indexOf(data.charAt(i++) || "=");
+        enc3 = alphabet.indexOf(data.charAt(i++) || "=");
+        enc4 = alphabet.indexOf(data.charAt(i++) || "=");
+
+        enc2 = enc2 === -1 ? 64 : enc2;
+        enc3 = enc3 === -1 ? 64 : enc3;
+        enc4 = enc4 === -1 ? 64 : enc4;
+
+        chr1 = (enc1 << 2) | (enc2 >> 4);
+        chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+        chr3 = ((enc3 & 3) << 6) | enc4;
+
+        output.push(chr1);
+
+        if (enc3 !== 64) {
+            output.push(chr2);
+        }
+        if (enc4 !== 64) {
+            output.push(chr3);
+        }
+    }
+
+    return returnType === "string" ? Utils.byteArrayToUtf8(output) : output;
+}
+
+
+/**
+ * Base64 alphabets.
+ */
+export const ALPHABET_OPTIONS = [
+    {name: "Standard: A-Za-z0-9+/=", value: "A-Za-z0-9+/="},
+    {name: "URL safe: A-Za-z0-9-_", value: "A-Za-z0-9-_"},
+    {name: "Filename safe: A-Za-z0-9+-=", value: "A-Za-z0-9+\\-="},
+    {name: "itoa64: ./0-9A-Za-z=", value: "./0-9A-Za-z="},
+    {name: "XML: A-Za-z0-9_.", value: "A-Za-z0-9_."},
+    {name: "y64: A-Za-z0-9._-", value: "A-Za-z0-9._-"},
+    {name: "z64: 0-9a-zA-Z+/=", value: "0-9a-zA-Z+/="},
+    {name: "Radix-64: 0-9A-Za-z+/=", value: "0-9A-Za-z+/="},
+    {name: "Uuencoding: [space]-_", value: " -_"},
+    {name: "Xxencoding: +-0-9A-Za-z", value: "+\\-0-9A-Za-z"},
+    {name: "BinHex: !-,-0-689@A-NP-VX-Z[`a-fh-mp-r", value: "!-,-0-689@A-NP-VX-Z[`a-fh-mp-r"},
+    {name: "ROT13: N-ZA-Mn-za-m0-9+/=", value: "N-ZA-Mn-za-m0-9+/="},
+    {name: "UNIX crypt: ./0-9A-Za-z", value: "./0-9A-Za-z"},
+];

src/core/lib/BitwiseOp.mjs

@@ -0,0 +1,117 @@
+/**
+ * Bitwise operation resources.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+/**
+ * Runs bitwise operations across the input data.
+ *
+ * @param {byteArray} input
+ * @param {byteArray} key
+ * @param {function} func - The bitwise calculation to carry out
+ * @param {boolean} nullPreserving
+ * @param {string} scheme
+ * @returns {byteArray}
+ */
+export function bitOp (input, key, func, nullPreserving, scheme) {
+    if (!key || !key.length) key = [0];
+    const result = [];
+    let x = null,
+        k = null,
+        o = null;
+
+    for (let i = 0; i < input.length; i++) {
+        k = key[i % key.length];
+        o = input[i];
+        x = nullPreserving && (o === 0 || o === k) ? o : func(o, k);
+        result.push(x);
+        if (scheme &&
+            scheme !== "Standard" &&
+            !(nullPreserving && (o === 0 || o === k))) {
+            switch (scheme) {
+                case "Input differential":
+                    key[i % key.length] = x;
+                    break;
+                case "Output differential":
+                    key[i % key.length] = o;
+                    break;
+            }
+        }
+    }
+
+    return result;
+}
+
+/**
+ * XOR bitwise calculation.
+ *
+ * @param {number} operand
+ * @param {number} key
+ * @returns {number}
+ */
+export function xor(operand, key) {
+    return operand ^ key;
+}
+
+
+/**
+ * NOT bitwise calculation.
+ *
+ * @param {number} operand
+ * @returns {number}
+ */
+export function not(operand, _) {
+    return ~operand & 0xff;
+}
+
+
+/**
+ * AND bitwise calculation.
+ *
+ * @param {number} operand
+ * @param {number} key
+ * @returns {number}
+ */
+export function and(operand, key) {
+    return operand & key;
+}
+
+
+/**
+ * OR bitwise calculation.
+ *
+ * @param {number} operand
+ * @param {number} key
+ * @returns {number}
+ */
+export function or(operand, key) {
+    return operand | key;
+}
+
+
+/**
+ * ADD bitwise calculation.
+ *
+ * @param {number} operand
+ * @param {number} key
+ * @returns {number}
+ */
+export function add(operand, key) {
+    return (operand + key) % 256;
+}
+
+
+/**
+ * SUB bitwise calculation.
+ *
+ * @param {number} operand
+ * @param {number} key
+ * @returns {number}
+ */
+export function sub(operand, key) {
+    const result = operand - key;
+    return (result < 0) ? 256 + result : result;
+}

src/core/lib/CanvasComponents.mjs

@@ -0,0 +1,204 @@
+/**
+ * Various components for drawing diagrams on an HTML5 canvas.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+/**
+ * Draws a line from one point to another
+ *
+ * @param ctx
+ * @param startX
+ * @param startY
+ * @param endX
+ * @param endY
+ */
+export function drawLine(ctx, startX, startY, endX, endY) {
+    ctx.beginPath();
+    ctx.moveTo(startX, startY);
+    ctx.lineTo(endX, endY);
+    ctx.closePath();
+    ctx.stroke();
+}
+
+/**
+ * Draws a bar chart on the canvas.
+ *
+ * @param canvas
+ * @param scores
+ * @param xAxisLabel
+ * @param yAxisLabel
+ * @param numXLabels
+ * @param numYLabels
+ * @param fontSize
+ */
+export function drawBarChart(canvas, scores, xAxisLabel, yAxisLabel, numXLabels, numYLabels, fontSize) {
+    fontSize = fontSize || 15;
+    if (!numXLabels || numXLabels > Math.round(canvas.width / 50)) {
+        numXLabels = Math.round(canvas.width / 50);
+    }
+    if (!numYLabels || numYLabels > Math.round(canvas.width / 50)) {
+        numYLabels = Math.round(canvas.height / 50);
+    }
+
+    // Graph properties
+    const ctx = canvas.getContext("2d"),
+        leftPadding = canvas.width * 0.08,
+        rightPadding = canvas.width * 0.03,
+        topPadding = canvas.height * 0.08,
+        bottomPadding = canvas.height * 0.15,
+        graphHeight = canvas.height - topPadding - bottomPadding,
+        graphWidth = canvas.width - leftPadding - rightPadding,
+        base = topPadding + graphHeight,
+        ceil = topPadding;
+
+    ctx.font = fontSize + "px Arial";
+
+    // Draw axis
+    ctx.lineWidth = "1.0";
+    ctx.strokeStyle = "#444";
+    drawLine(ctx, leftPadding, base, graphWidth + leftPadding, base); // x
+    drawLine(ctx, leftPadding, base, leftPadding, ceil); // y
+
+    // Bar properties
+    const barPadding = graphWidth * 0.003,
+        barWidth = (graphWidth - (barPadding * scores.length)) / scores.length,
+        max = Math.max.apply(Math, scores);
+    let currX = leftPadding + barPadding;
+
+    // Draw bars
+    ctx.fillStyle = "green";
+    for (let i = 0; i < scores.length; i++) {
+        const h = scores[i] / max * graphHeight;
+        ctx.fillRect(currX, base - h, barWidth, h);
+        currX += barWidth + barPadding;
+    }
+
+    // Mark x axis
+    ctx.fillStyle = "black";
+    ctx.textAlign = "center";
+    currX = leftPadding + barPadding;
+    if (numXLabels >= scores.length) {
+        // Mark every score
+        for (let i = 0; i <= scores.length; i++) {
+            ctx.fillText(i, currX, base + (bottomPadding * 0.3));
+            currX += barWidth + barPadding;
+        }
+    } else {
+        // Mark some scores
+        for (let i = 0; i <= numXLabels; i++) {
+            const val = Math.ceil((scores.length / numXLabels) * i);
+            currX = (graphWidth / numXLabels) * i + leftPadding;
+            ctx.fillText(val, currX, base + (bottomPadding * 0.3));
+        }
+    }
+
+    // Mark y axis
+    ctx.textAlign = "right";
+    let currY;
+    if (numYLabels >= max) {
+        // Mark every increment
+        for (let i = 0; i <= max; i++) {
+            currY = base - (i / max * graphHeight) + fontSize / 3;
+            ctx.fillText(i, leftPadding * 0.8, currY);
+        }
+    } else {
+        // Mark some increments
+        for (let i = 0; i <= numYLabels; i++) {
+            const val = Math.ceil((max / numYLabels) * i);
+            currY = base - (val / max * graphHeight) + fontSize / 3;
+            ctx.fillText(val, leftPadding * 0.8, currY);
+        }
+    }
+
+    // Label x axis
+    if (xAxisLabel) {
+        ctx.textAlign = "center";
+        ctx.fillText(xAxisLabel, graphWidth / 2 + leftPadding, base + bottomPadding * 0.8);
+    }
+
+    // Label y axis
+    if (yAxisLabel) {
+        ctx.save();
+        const x = leftPadding * 0.3,
+            y = graphHeight / 2 + topPadding;
+        ctx.translate(x, y);
+        ctx.rotate(-Math.PI / 2);
+        ctx.textAlign = "center";
+        ctx.fillText(yAxisLabel, 0, 0);
+        ctx.restore();
+    }
+}
+
+/**
+ * Draws a scale bar on the canvas.
+ *
+ * @param canvas
+ * @param score
+ * @param max
+ * @param markings
+ */
+export function drawScaleBar(canvas, score, max, markings) {
+    // Bar properties
+    const ctx = canvas.getContext("2d"),
+        leftPadding = canvas.width * 0.01,
+        rightPadding = canvas.width * 0.01,
+        topPadding = canvas.height * 0.1,
+        bottomPadding = canvas.height * 0.3,
+        barHeight = canvas.height - topPadding - bottomPadding,
+        barWidth = canvas.width - leftPadding - rightPadding;
+
+    // Scale properties
+    const proportion = score / max;
+
+    // Draw bar outline
+    ctx.strokeRect(leftPadding, topPadding, barWidth, barHeight);
+
+    // Shade in up to proportion
+    const grad = ctx.createLinearGradient(leftPadding, 0, barWidth + leftPadding, 0);
+    grad.addColorStop(0, "green");
+    grad.addColorStop(0.5, "gold");
+    grad.addColorStop(1, "red");
+    ctx.fillStyle = grad;
+    ctx.fillRect(leftPadding, topPadding, barWidth * proportion, barHeight);
+
+    // Add markings
+    let x0, y0, x1, y1;
+    ctx.fillStyle = "black";
+    ctx.textAlign = "center";
+    ctx.font = "13px Arial";
+    for (let i = 0; i < markings.length; i++) {
+        // Draw min line down
+        x0 = barWidth / max * markings[i].min + leftPadding;
+        y0 = topPadding + barHeight + (bottomPadding * 0.1);
+        x1 = x0;
+        y1 = topPadding + barHeight + (bottomPadding * 0.3);
+        drawLine(ctx, x0, y0, x1, y1);
+
+        // Draw max line down
+        x0 = barWidth / max * markings[i].max + leftPadding;
+        x1 = x0;
+        drawLine(ctx, x0, y0, x1, y1);
+
+        // Join min and max lines
+        x0 = barWidth / max * markings[i].min + leftPadding;
+        y0 = topPadding + barHeight + (bottomPadding * 0.3);
+        x1 = barWidth / max * markings[i].max + leftPadding;
+        y1 = y0;
+        drawLine(ctx, x0, y0, x1, y1);
+
+        // Add label
+        if (markings[i].max >= max * 0.9) {
+            ctx.textAlign = "right";
+            x0 = x1;
+        } else if (markings[i].max <= max * 0.1) {
+            ctx.textAlign = "left";
+        } else {
+            x0 = x0 + (x1 - x0) / 2;
+        }
+        y0 = topPadding + barHeight + (bottomPadding * 0.8);
+        ctx.fillText(markings[i].label, x0, y0);
+    }
+}

src/core/lib/ChrEnc.mjs

@@ -0,0 +1,58 @@
+/**
+ * Character encoding resources.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+/**
+ * Character encoding format mappings.
+ */
+export const IO_FORMAT = {
+    "UTF-8 (65001)": 65001,
+    "UTF-7 (65000)": 65000,
+    "UTF16LE (1200)": 1200,
+    "UTF16BE (1201)": 1201,
+    "UTF16 (1201)": 1201,
+    "IBM EBCDIC International (500)": 500,
+    "IBM EBCDIC US-Canada (37)": 37,
+    "Windows-874 Thai (874)": 874,
+    "Japanese Shift-JIS (932)": 932,
+    "Simplified Chinese GBK (936)": 936,
+    "Korean (949)": 949,
+    "Traditional Chinese Big5 (950)": 950,
+    "Windows-1250 Central European (1250)": 1250,
+    "Windows-1251 Cyrillic (1251)": 1251,
+    "Windows-1252 Latin (1252)": 1252,
+    "Windows-1253 Greek (1253)": 1253,
+    "Windows-1254 Turkish (1254)": 1254,
+    "Windows-1255 Hebrew (1255)": 1255,
+    "Windows-1256 Arabic (1256)": 1256,
+    "Windows-1257 Baltic (1257)": 1257,
+    "Windows-1258 Vietnam (1258)": 1258,
+    "US-ASCII (20127)": 20127,
+    "Simplified Chinese GB2312 (20936)": 20936,
+    "KOI8-R Russian Cyrillic (20866)": 20866,
+    "KOI8-U Ukrainian Cyrillic (21866)": 21866,
+    "ISO-8859-1 Latin 1 Western European (28591)": 28591,
+    "ISO-8859-2 Latin 2 Central European (28592)": 28592,
+    "ISO-8859-3 Latin 3 South European (28593)": 28593,
+    "ISO-8859-4 Latin 4 North European (28594)": 28594,
+    "ISO-8859-5 Latin/Cyrillic (28595)": 28595,
+    "ISO-8859-6 Latin/Arabic (28596)": 28596,
+    "ISO-8859-7 Latin/Greek (28597)": 28597,
+    "ISO-8859-8 Latin/Hebrew (28598)": 28598,
+    "ISO-8859-9 Latin 5 Turkish (28599)": 28599,
+    "ISO-8859-10 Latin 6 Nordic (28600)": 28600,
+    "ISO-8859-11 Latin/Thai (28601)": 28601,
+    "ISO-8859-13 Latin 7 Baltic Rim (28603)": 28603,
+    "ISO-8859-14 Latin 8 Celtic (28604)": 28604,
+    "ISO-8859-15 Latin 9 (28605)": 28605,
+    "ISO-8859-16 Latin 10 (28606)": 28606,
+    "ISO-2022 JIS Japanese (50222)": 50222,
+    "EUC Japanese (51932)": 51932,
+    "EUC Korean (51949)": 51949,
+    "Simplified Chinese GB18030 (54936)": 54936,
+};
+

src/core/lib/Ciphers.mjs

@@ -0,0 +1,82 @@
+/**
+ * Cipher functions.
+ *
+ * @author Matt C [matt@artemisbot.uk]
+ * @author n1474335 [n1474335@gmail.com]
+ *
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ *
+ */
+
+import OperationError from "../errors/OperationError";
+import CryptoJS from "crypto-js";
+
+/**
+ * Affine Cipher Encode operation.
+ *
+ * @author Matt C [matt@artemisbot.uk]
+ * @param {string} input
+ * @param {Object[]} args
+ * @returns {string}
+ */
+export function affineEncode(input, args) {
+    const alphabet = "abcdefghijklmnopqrstuvwxyz",
+        a = args[0],
+        b = args[1];
+    let output = "";
+
+    if (!/^\+?(0|[1-9]\d*)$/.test(a) || !/^\+?(0|[1-9]\d*)$/.test(b)) {
+        throw new OperationError("The values of a and b can only be integers.");
+    }
+
+    for (let i = 0; i < input.length; i++) {
+        if (alphabet.indexOf(input[i]) >= 0) {
+            // Uses the affine function ax+b % m = y (where m is length of the alphabet)
+            output += alphabet[((a * alphabet.indexOf(input[i])) + b) % 26];
+        } else if (alphabet.indexOf(input[i].toLowerCase()) >= 0) {
+            // Same as above, accounting for uppercase
+            output += alphabet[((a * alphabet.indexOf(input[i].toLowerCase())) + b) % 26].toUpperCase();
+        } else {
+            // Non-alphabetic characters
+            output += input[i];
+        }
+    }
+    return output;
+}
+
+/**
+ * Generates a polybius square for the given keyword
+ *
+ * @private
+ * @author Matt C [matt@artemisbot.uk]
+ * @param {string} keyword - Must be upper case
+ * @returns {string}
+ */
+export function genPolybiusSquare (keyword) {
+    const alpha = "ABCDEFGHIKLMNOPQRSTUVWXYZ",
+        polArray = `${keyword}${alpha}`.split("").unique(),
+        polybius = [];
+
+    for (let i = 0; i < 5; i++) {
+        polybius[i] = polArray.slice(i*5, i*5 + 5);
+    }
+
+    return polybius;
+}
+
+/**
+ * A mapping of string formats to their classes in the CryptoJS library.
+ *
+ * @private
+ * @constant
+ */
+export const format = {
+    "Hex":     CryptoJS.enc.Hex,
+    "Base64":  CryptoJS.enc.Base64,
+    "UTF8":    CryptoJS.enc.Utf8,
+    "UTF16":   CryptoJS.enc.Utf16,
+    "UTF16LE": CryptoJS.enc.Utf16LE,
+    "UTF16BE": CryptoJS.enc.Utf16BE,
+    "Latin1":  CryptoJS.enc.Latin1,
+};

src/core/lib/Code.mjs

@@ -0,0 +1,29 @@
+/**
+ * Code resources.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+/**
+ * This tries to rename variable names in a code snippet according to a function.
+ *
+ * @param {string} input
+ * @param {function} replacer - This function will be fed the token which should be renamed.
+ * @returns {string}
+ */
+export function replaceVariableNames(input, replacer) {
+    const tokenRegex = /\\"|"(?:\\"|[^"])*"|(\b[a-z0-9\-_]+\b)/ig;
+
+    return input.replace(tokenRegex, (...args) => {
+        const match = args[0],
+            quotes = args[1];
+
+        if (!quotes) {
+            return match;
+        } else {
+            return replacer(match);
+        }
+    });
+}

src/core/lib/DateTime.mjs

@@ -0,0 +1,313 @@
+/**
+ * DateTime resources.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+/**
+ * DateTime units.
+ */
+export const UNITS = ["Seconds (s)", "Milliseconds (ms)", "Microseconds (μs)", "Nanoseconds (ns)"];
+
+/**
+ * DateTime formats.
+ */
+export const DATETIME_FORMATS = [
+    {
+        name: "Standard date and time",
+        value: "DD/MM/YYYY HH:mm:ss"
+    },
+    {
+        name: "American-style date and time",
+        value: "MM/DD/YYYY HH:mm:ss"
+    },
+    {
+        name: "International date and time",
+        value: "YYYY-MM-DD HH:mm:ss"
+    },
+    {
+        name: "Verbose date and time",
+        value: "dddd Do MMMM YYYY HH:mm:ss Z z"
+    },
+    {
+        name: "UNIX timestamp (seconds)",
+        value: "X"
+    },
+    {
+        name: "UNIX timestamp offset (milliseconds)",
+        value: "x"
+    },
+    {
+        name: "Automatic",
+        value: ""
+    },
+];
+
+/**
+ * MomentJS DateTime formatting examples.
+ */
+export const FORMAT_EXAMPLES = `Format string tokens:
+<table class="table table-striped table-hover table-condensed table-bordered" style="font-family: sans-serif">
+  <thead>
+    <tr>
+      <th>Category</th>
+      <th>Token</th>
+      <th>Output</th>
+    </tr>
+  </thead>
+  <tbody>
+    <tr>
+      <td><b>Month</b></td>
+      <td>M</td>
+      <td>1 2 ... 11 12</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>Mo</td>
+      <td>1st 2nd ... 11th 12th</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>MM</td>
+      <td>01 02 ... 11 12</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>MMM</td>
+      <td>Jan Feb ... Nov Dec</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>MMMM</td>
+      <td>January February ... November December</td>
+    </tr>
+    <tr>
+      <td><b>Quarter</b></td>
+      <td>Q</td>
+      <td>1 2 3 4</td>
+    </tr>
+    <tr>
+      <td><b>Day of Month</b></td>
+      <td>D</td>
+      <td>1 2 ... 30 31</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>Do</td>
+      <td>1st 2nd ... 30th 31st</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>DD</td>
+      <td>01 02 ... 30 31</td>
+    </tr>
+    <tr>
+      <td><b>Day of Year</b></td>
+      <td>DDD</td>
+      <td>1 2 ... 364 365</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>DDDo</td>
+      <td>1st 2nd ... 364th 365th</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>DDDD</td>
+      <td>001 002 ... 364 365</td>
+    </tr>
+    <tr>
+      <td><b>Day of Week</b></td>
+      <td>d</td>
+      <td>0 1 ... 5 6</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>do</td>
+      <td>0th 1st ... 5th 6th</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>dd</td>
+      <td>Su Mo ... Fr Sa</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>ddd</td>
+      <td>Sun Mon ... Fri Sat</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>dddd</td>
+      <td>Sunday Monday ... Friday Saturday</td>
+    </tr>
+    <tr>
+      <td><b>Day of Week (Locale)</b></td>
+      <td>e</td>
+      <td>0 1 ... 5 6</td>
+    </tr>
+    <tr>
+      <td><b>Day of Week (ISO)</b></td>
+      <td>E</td>
+      <td>1 2 ... 6 7</td>
+    </tr>
+    <tr>
+      <td><b>Week of Year</b></td>
+      <td>w</td>
+      <td>1 2 ... 52 53</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>wo</td>
+      <td>1st 2nd ... 52nd 53rd</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>ww</td>
+      <td>01 02 ... 52 53</td>
+    </tr>
+    <tr>
+      <td><b>Week of Year (ISO)</b></td>
+      <td>W</td>
+      <td>1 2 ... 52 53</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>Wo</td>
+      <td>1st 2nd ... 52nd 53rd</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>WW</td>
+      <td>01 02 ... 52 53</td>
+    </tr>
+    <tr>
+      <td><b>Year</b></td>
+      <td>YY</td>
+      <td>70 71 ... 29 30</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>YYYY</td>
+      <td>1970 1971 ... 2029 2030</td>
+    </tr>
+    <tr>
+      <td><b>Week Year</b></td>
+      <td>gg</td>
+      <td>70 71 ... 29 30</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>gggg</td>
+      <td>1970 1971 ... 2029 2030</td>
+    </tr>
+    <tr>
+      <td><b>Week Year (ISO)</b></td>
+      <td>GG</td>
+      <td>70 71 ... 29 30</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>GGGG</td>
+      <td>1970 1971 ... 2029 2030</td>
+    </tr>
+    <tr>
+      <td><b>AM/PM</b></td>
+      <td>A</td>
+      <td>AM PM</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>a</td>
+      <td>am pm</td>
+    </tr>
+    <tr>
+      <td><b>Hour</b></td>
+      <td>H</td>
+      <td>0 1 ... 22 23</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>HH</td>
+      <td>00 01 ... 22 23</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>h</td>
+      <td>1 2 ... 11 12</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>hh</td>
+      <td>01 02 ... 11 12</td>
+    </tr>
+    <tr>
+      <td><b>Minute</b></td>
+      <td>m</td>
+      <td>0 1 ... 58 59</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>mm</td>
+      <td>00 01 ... 58 59</td>
+    </tr>
+    <tr>
+      <td><b>Second</b></td>
+      <td>s</td>
+      <td>0 1 ... 58 59</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>ss</td>
+      <td>00 01 ... 58 59</td>
+    </tr>
+    <tr>
+      <td><b>Fractional Second</b></td>
+      <td>S</td>
+      <td>0 1 ... 8 9</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>SS</td>
+      <td>00 01 ... 98 99</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>SSS</td>
+      <td>000 001 ... 998 999</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>SSSS ... SSSSSSSSS</td>
+      <td>000[0..] 001[0..] ... 998[0..] 999[0..]</td>
+    </tr>
+    <tr>
+      <td><b>Timezone</b></td>
+      <td>z or zz</td>
+      <td>EST CST ... MST PST</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>Z</td>
+      <td>-07:00 -06:00 ... +06:00 +07:00</td>
+    </tr>
+    <tr>
+      <td></td>
+      <td>ZZ</td>
+      <td>-0700 -0600 ... +0600 +0700</td>
+    </tr>
+    <tr>
+      <td><b>Unix Timestamp</b></td>
+      <td>X</td>
+      <td>1360013296</td>
+    </tr>
+    <tr>
+      <td><b>Unix Millisecond Timestamp</b></td>
+      <td>x</td>
+      <td>1360013296123</td>
+    </tr>
+  </tbody>
+</table>`;
+

src/core/lib/Delim.mjs

@@ -0,0 +1,69 @@
+/**
+ * Various delimiters
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+/**
+ * Generic sequence delimiters.
+ */
+export const DELIM_OPTIONS = ["Space", "Comma", "Semi-colon", "Colon", "Line feed", "CRLF"];
+
+/**
+ * Binary sequence delimiters.
+ */
+export const BIN_DELIM_OPTIONS = ["Space", "Comma", "Semi-colon", "Colon", "Line feed", "CRLF", "None"];
+
+/**
+ * Letter sequence delimiters.
+ */
+export const LETTER_DELIM_OPTIONS = ["Space", "Line feed", "CRLF", "Forward slash", "Backslash", "Comma", "Semi-colon", "Colon"];
+
+/**
+ * Word sequence delimiters.
+ */
+export const WORD_DELIM_OPTIONS = ["Line feed", "CRLF", "Forward slash", "Backslash", "Comma", "Semi-colon", "Colon"];
+
+/**
+ * Input sequence delimiters.
+ */
+export const INPUT_DELIM_OPTIONS = ["Line feed", "CRLF", "Space", "Comma", "Semi-colon", "Colon", "Nothing (separate chars)"];
+
+/**
+ * Armithmetic sequence delimiters
+ */
+export const ARITHMETIC_DELIM_OPTIONS = ["Line feed", "Space", "Comma", "Semi-colon", "Colon", "CRLF"];
+
+/**
+ * Hash delimiters
+ */
+export const HASH_DELIM_OPTIONS = ["Line feed", "CRLF", "Space", "Comma"];
+
+/**
+ * Split delimiters.
+ */
+export const SPLIT_DELIM_OPTIONS = [
+    {name: "Comma", value: ","},
+    {name: "Space", value: " "},
+    {name: "Line feed", value: "\\n"},
+    {name: "CRLF", value: "\\r\\n"},
+    {name: "Semi-colon", value: ";"},
+    {name: "Colon", value: ":"},
+    {name: "Nothing (separate chars)", value: ""}
+];
+
+/**
+ * Join delimiters.
+ */
+export const JOIN_DELIM_OPTIONS = [
+    {name: "Line feed", value: "\\n"},
+    {name: "CRLF", value: "\\r\\n"},
+    {name: "Space", value: " "},
+    {name: "Comma", value: ","},
+    {name: "Semi-colon", value: ";"},
+    {name: "Colon", value: ":"},
+    {name: "Nothing (join chars)", value: ""}
+];
+

src/core/lib/Extract.mjs

@@ -0,0 +1,41 @@
+/**
+ * Identifier extraction functions
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ *
+ */
+
+/**
+ * Runs search operations across the input data using regular expressions.
+ *
+ * @param {string} input
+ * @param {RegExp} searchRegex
+ * @param {RegExp} removeRegex - A regular expression defining results to remove from the
+ *      final list
+ * @param {boolean} includeTotal - Whether or not to include the total number of results
+ * @returns {string}
+ */
+export function search (input, searchRegex, removeRegex, includeTotal) {
+    let output = "",
+        total = 0,
+        match;
+
+    while ((match = searchRegex.exec(input))) {
+        // Moves pointer when an empty string is matched (prevents infinite loop)
+        if (match.index === searchRegex.lastIndex) {
+            searchRegex.lastIndex++;
+        }
+
+        if (removeRegex && removeRegex.test(match[0]))
+            continue;
+        total++;
+        output += match[0] + "\n";
+    }
+
+    if (includeTotal)
+        output = "Total found: " + total + "\n\n" + output;
+
+    return output;
+}

src/core/lib/FlowControl.mjs

@@ -0,0 +1,20 @@
+/**
+ * Flow control functions
+ *
+ * @author d98762625 [d98762625@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+/**
+ * Returns the index of a label.
+ *
+ * @param {Object} state - The current state of the recipe.
+ * @param {string} name - The label name to look for.
+ * @returns {number}
+ */
+export function getLabelIndex(name, state) {
+    return state.opList.findIndex((operation) => {
+        return (operation.name === "Label") && (name === operation.ingValues[0]);
+    });
+}

src/core/lib/Hash.mjs

@@ -0,0 +1,28 @@
+/**
+ * Hashing resources.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ *
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Utils from "../Utils";
+import CryptoApi from "crypto-api/src/crypto-api";
+
+
+/**
+ * Generic hash function.
+ *
+ * @param {string} name
+ * @param {ArrayBuffer} input
+ * @param {Object} [options={}]
+ * @returns {string}
+ */
+export function runHash(name, input, options={}) {
+    const msg = Utils.arrayBufferToStr(input, false),
+        hasher = CryptoApi.getHasher(name, options);
+    hasher.update(msg);
+    return CryptoApi.encoder.toHex(hasher.finalize());
+}
+

src/core/lib/Hex.mjs

@@ -0,0 +1,110 @@
+/**
+ * Byte representation functions.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Utils from "../Utils";
+
+
+/**
+ * Convert a byte array into a hex string.
+ *
+ * @param {Uint8Array|byteArray} data
+ * @param {string} [delim=" "]
+ * @param {number} [padding=2]
+ * @returns {string}
+ *
+ * @example
+ * // returns "0a 14 1e"
+ * toHex([10,20,30]);
+ *
+ * // returns "0a:14:1e"
+ * toHex([10,20,30], ":");
+ */
+export function toHex(data, delim=" ", padding=2) {
+    if (!data) return "";
+
+    let output = "";
+
+    for (let i = 0; i < data.length; i++) {
+        output += data[i].toString(16).padStart(padding, "0") + delim;
+    }
+
+    // Add \x or 0x to beginning
+    if (delim === "0x") output = "0x" + output;
+    if (delim === "\\x") output = "\\x" + output;
+
+    if (delim.length)
+        return output.slice(0, -delim.length);
+    else
+        return output;
+}
+
+
+/**
+ * Convert a byte array into a hex string as efficiently as possible with no options.
+ *
+ * @param {byteArray} data
+ * @returns {string}
+ *
+ * @example
+ * // returns "0a141e"
+ * toHex([10,20,30]);
+ */
+export function toHexFast(data) {
+    if (!data) return "";
+
+    const output = [];
+
+    for (let i = 0; i < data.length; i++) {
+        output.push((data[i] >>> 4).toString(16));
+        output.push((data[i] & 0x0f).toString(16));
+    }
+
+    return output.join("");
+}
+
+
+/**
+ * Convert a hex string into a byte array.
+ *
+ * @param {string} data
+ * @param {string} [delim]
+ * @param {number} [byteLen=2]
+ * @returns {byteArray}
+ *
+ * @example
+ * // returns [10,20,30]
+ * fromHex("0a 14 1e");
+ *
+ * // returns [10,20,30]
+ * fromHex("0a:14:1e", "Colon");
+ */
+export function fromHex(data, delim, byteLen=2) {
+    delim = delim || "Auto";
+    if (delim !== "None") {
+        const delimRegex = delim === "Auto" ? /[^a-f\d]/gi : Utils.regexRep(delim);
+        data = data.replace(delimRegex, "");
+    }
+
+    const output = [];
+    for (let i = 0; i < data.length; i += byteLen) {
+        output.push(parseInt(data.substr(i, byteLen), 16));
+    }
+    return output;
+}
+
+
+/**
+ * To Hexadecimal delimiters.
+ */
+export const TO_HEX_DELIM_OPTIONS = ["Space", "Comma", "Semi-colon", "Colon", "Line feed", "CRLF", "0x", "\\x", "None"];
+
+
+/**
+ * From Hexadecimal delimiters.
+ */
+export const FROM_HEX_DELIM_OPTIONS = ["Auto"].concat(TO_HEX_DELIM_OPTIONS);

src/core/lib/PGP.mjs

@@ -0,0 +1,117 @@
+/**
+ * PGP functions.
+ *
+ * @author tlwr [toby@toby.codes]
+ * @author Matt C [matt@artemisbot.uk]
+ * @author n1474335 [n1474335@gmail.com]
+ *
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ *
+ */
+
+import OperationError from "../errors/OperationError";
+import kbpgp from "kbpgp";
+import promisifyDefault from "es6-promisify";
+const promisify = promisifyDefault.promisify;
+
+/**
+ * Progress callback
+ */
+export const ASP = kbpgp.ASP({
+    "progress_hook": info => {
+        let msg = "";
+
+        switch (info.what) {
+            case "guess":
+                msg = "Guessing a prime";
+                break;
+            case "fermat":
+                msg = "Factoring prime using Fermat's factorization method";
+                break;
+            case "mr":
+                msg = "Performing Miller-Rabin primality test";
+                break;
+            case "passed_mr":
+                msg = "Passed Miller-Rabin primality test";
+                break;
+            case "failed_mr":
+                msg = "Failed Miller-Rabin primality test";
+                break;
+            case "found":
+                msg = "Prime found";
+                break;
+            default:
+                msg = `Stage: ${info.what}`;
+        }
+
+        if (ENVIRONMENT_IS_WORKER())
+            self.sendStatusMessage(msg);
+    }
+});
+
+/**
+ * Get size of subkey
+ *
+ * @param {number} keySize
+ * @returns {number}
+ */
+export function getSubkeySize(keySize) {
+    return {
+        1024: 1024,
+        2048: 1024,
+        4096: 2048,
+        256:   256,
+        384:   256,
+    }[keySize];
+}
+
+/**
+* Import private key and unlock if necessary
+*
+* @param {string} privateKey
+* @param {string} [passphrase]
+* @returns {Object}
+*/
+export async function importPrivateKey(privateKey, passphrase) {
+    try {
+        const key = await promisify(kbpgp.KeyManager.import_from_armored_pgp)({
+            armored: privateKey,
+            opts: {
+                "no_check_keys": true
+            }
+        });
+        if (key.is_pgp_locked()) {
+            if (passphrase) {
+                await promisify(key.unlock_pgp.bind(key))({
+                    passphrase
+                });
+            } else {
+                throw new OperationError("Did not provide passphrase with locked private key.");
+            }
+        }
+        return key;
+    } catch (err) {
+        throw new OperationError(`Could not import private key: ${err}`);
+    }
+}
+
+/**
+ * Import public key
+ *
+ * @param {string} publicKey
+ * @returns {Object}
+ */
+export async function importPublicKey (publicKey) {
+    try {
+        const key = await promisify(kbpgp.KeyManager.import_from_armored_pgp)({
+            armored: publicKey,
+            opts: {
+                "no_check_keys": true
+            }
+        });
+        return key;
+    } catch (err) {
+        throw new OperationError(`Could not import public key: ${err}`);
+    }
+}

src/core/lib/Rotate.mjs

@@ -0,0 +1,103 @@
+/**
+ * Bit rotation functions.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ *
+ * @todo Support for UTF16
+ */
+
+
+/**
+ * Runs rotation operations across the input data.
+ *
+ * @param {byteArray} data
+ * @param {number} amount
+ * @param {function} algo - The rotation operation to carry out
+ * @returns {byteArray}
+ */
+export function rot(data, amount, algo) {
+    const result = [];
+    for (let i = 0; i < data.length; i++) {
+        let b = data[i];
+        for (let j = 0; j < amount; j++) {
+            b = algo(b);
+        }
+        result.push(b);
+    }
+    return result;
+}
+
+
+/**
+ * Rotate right bitwise op.
+ *
+ * @param {byte} b
+ * @returns {byte}
+ */
+export function rotr(b) {
+    const bit = (b & 1) << 7;
+    return (b >> 1) | bit;
+}
+
+/**
+ * Rotate left bitwise op.
+ *
+ * @param {byte} b
+ * @returns {byte}
+ */
+export function rotl(b) {
+    const bit = (b >> 7) & 1;
+    return ((b << 1) | bit) & 0xFF;
+}
+
+
+/**
+ * Rotates a byte array to the right by a specific amount as a whole, so that bits are wrapped
+ * from the end of the array to the beginning.
+ *
+ * @param {byteArray} data
+ * @param {number} amount
+ * @returns {byteArray}
+ */
+export function rotrCarry(data, amount) {
+    const result = [];
+    let carryBits = 0,
+        newByte;
+
+    amount = amount % 8;
+    for (let i = 0; i < data.length; i++) {
+        const oldByte = data[i] >>> 0;
+        newByte = (oldByte >> amount) | carryBits;
+        carryBits = (oldByte & (Math.pow(2, amount)-1)) << (8-amount);
+        result.push(newByte);
+    }
+    result[0] |= carryBits;
+    return result;
+}
+
+
+/**
+ * Rotates a byte array to the left by a specific amount as a whole, so that bits are wrapped
+ * from the beginning of the array to the end.
+ *
+ * @param {byteArray} data
+ * @param {number} amount
+ * @returns {byteArray}
+ */
+export function rotlCarry(data, amount) {
+    const result = [];
+    let carryBits = 0,
+        newByte;
+
+    amount = amount % 8;
+    for (let i = data.length-1; i >= 0; i--) {
+        const oldByte = data[i];
+        newByte = ((oldByte << amount) | carryBits) & 0xFF;
+        carryBits = (oldByte >> (8-amount)) & (Math.pow(2, amount)-1);
+        result[i] = (newByte);
+    }
+    result[data.length-1] = result[data.length-1] | carryBits;
+    return result;
+}

src/core/lib/Zlib.mjs

@@ -0,0 +1,19 @@
+/**
+ * Zlib exports.
+ *
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import zlibAndGzip from "zlibjs/bin/zlib_and_gzip.min";
+
+const Zlib = zlibAndGzip.Zlib;
+
+export const COMPRESSION_TYPE = ["Dynamic Huffman Coding", "Fixed Huffman Coding", "None (Store)"];
+export const INFLATE_BUFFER_TYPE = ["Adaptive", "Block"];
+export const ZLIB_COMPRESSION_TYPE_LOOKUP = {
+    "Fixed Huffman Coding":   Zlib.Deflate.CompressionType.FIXED,
+    "Dynamic Huffman Coding": Zlib.Deflate.CompressionType.DYNAMIC,
+    "None (Store)":           Zlib.Deflate.CompressionType.NONE,
+};

src/core/lib/canvascomponents.js

@@ -1,186 +0,0 @@
-"use strict";
-
-/**
- * Various components for drawing diagrams on an HTML5 canvas.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @constant
- * @namespace
- */
-const CanvasComponents = {
-
-    drawLine: function(ctx, startX, startY, endX, endY) {
-        ctx.beginPath();
-        ctx.moveTo(startX, startY);
-        ctx.lineTo(endX, endY);
-        ctx.closePath();
-        ctx.stroke();
-    },
-
-    drawBarChart: function(canvas, scores, xAxisLabel, yAxisLabel, numXLabels, numYLabels, fontSize) {
-        fontSize = fontSize || 15;
-        if (!numXLabels || numXLabels > Math.round(canvas.width / 50)) {
-            numXLabels = Math.round(canvas.width / 50);
-        }
-        if (!numYLabels || numYLabels > Math.round(canvas.width / 50)) {
-            numYLabels = Math.round(canvas.height / 50);
-        }
-
-        // Graph properties
-        var ctx = canvas.getContext("2d"),
-            leftPadding = canvas.width * 0.08,
-            rightPadding = canvas.width * 0.03,
-            topPadding = canvas.height * 0.08,
-            bottomPadding = canvas.height * 0.15,
-            graphHeight = canvas.height - topPadding - bottomPadding,
-            graphWidth = canvas.width - leftPadding - rightPadding,
-            base = topPadding + graphHeight,
-            ceil = topPadding;
-
-        ctx.font = fontSize + "px Arial";
-
-        // Draw axis
-        ctx.lineWidth = "1.0";
-        ctx.strokeStyle = "#444";
-        CanvasComponents.drawLine(ctx, leftPadding, base, graphWidth + leftPadding, base); // x
-        CanvasComponents.drawLine(ctx, leftPadding, base, leftPadding, ceil); // y
-
-        // Bar properties
-        var barPadding = graphWidth * 0.003,
-            barWidth = (graphWidth - (barPadding * scores.length)) / scores.length,
-            currX = leftPadding + barPadding,
-            max = Math.max.apply(Math, scores);
-
-        // Draw bars
-        ctx.fillStyle = "green";
-        for (var i = 0; i < scores.length; i++) {
-            var h = scores[i] / max * graphHeight;
-            ctx.fillRect(currX, base - h, barWidth, h);
-            currX += barWidth + barPadding;
-        }
-
-        // Mark x axis
-        ctx.fillStyle = "black";
-        ctx.textAlign = "center";
-        currX = leftPadding + barPadding;
-        if (numXLabels >= scores.length) {
-            // Mark every score
-            for (i = 0; i <= scores.length; i++) {
-                ctx.fillText(i, currX, base + (bottomPadding * 0.3));
-                currX += barWidth + barPadding;
-            }
-        } else {
-            // Mark some scores
-            for (i = 0; i <= numXLabels; i++) {
-                var val = Math.ceil((scores.length / numXLabels) * i);
-                currX = (graphWidth / numXLabels) * i + leftPadding;
-                ctx.fillText(val, currX, base + (bottomPadding * 0.3));
-            }
-        }
-
-        // Mark y axis
-        ctx.textAlign = "right";
-        var currY;
-        if (numYLabels >= max) {
-            // Mark every increment
-            for (i = 0; i <= max; i++) {
-                currY = base - (i / max * graphHeight) + fontSize / 3;
-                ctx.fillText(i, leftPadding * 0.8, currY);
-            }
-        } else {
-            // Mark some increments
-            for (i = 0; i <= numYLabels; i++) {
-                val = Math.ceil((max / numYLabels) * i);
-                currY = base - (val / max * graphHeight) + fontSize / 3;
-                ctx.fillText(val, leftPadding * 0.8, currY);
-            }
-        }
-
-        // Label x axis
-        if (xAxisLabel) {
-            ctx.textAlign = "center";
-            ctx.fillText(xAxisLabel, graphWidth / 2 + leftPadding, base + bottomPadding * 0.8);
-        }
-
-        // Label y axis
-        if (yAxisLabel) {
-            ctx.save();
-            var x = leftPadding * 0.3,
-                y = graphHeight / 2 + topPadding;
-            ctx.translate(x, y);
-            ctx.rotate(-Math.PI / 2);
-            ctx.textAlign = "center";
-            ctx.fillText(yAxisLabel, 0, 0);
-            ctx.restore();
-        }
-    },
-
-    drawScaleBar: function(canvas, score, max, markings) {
-        // Bar properties
-        var ctx = canvas.getContext("2d"),
-            leftPadding = canvas.width * 0.01,
-            rightPadding = canvas.width * 0.01,
-            topPadding = canvas.height * 0.1,
-            bottomPadding = canvas.height * 0.3,
-            barHeight = canvas.height - topPadding - bottomPadding,
-            barWidth = canvas.width - leftPadding - rightPadding;
-
-        // Scale properties
-        var proportion = score / max;
-
-        // Draw bar outline
-        ctx.strokeRect(leftPadding, topPadding, barWidth, barHeight);
-
-        // Shade in up to proportion
-        var grad = ctx.createLinearGradient(leftPadding, 0, barWidth + leftPadding, 0);
-        grad.addColorStop(0, "green");
-        grad.addColorStop(0.5, "gold");
-        grad.addColorStop(1, "red");
-        ctx.fillStyle = grad;
-        ctx.fillRect(leftPadding, topPadding, barWidth * proportion, barHeight);
-
-        // Add markings
-        var x0, y0, x1, y1;
-        ctx.fillStyle = "black";
-        ctx.textAlign = "center";
-        ctx.font = "13px Arial";
-        for (var i = 0; i < markings.length; i++) {
-            // Draw min line down
-            x0 = barWidth / max * markings[i].min + leftPadding;
-            y0 = topPadding + barHeight + (bottomPadding * 0.1);
-            x1 = x0;
-            y1 = topPadding + barHeight + (bottomPadding * 0.3);
-            CanvasComponents.drawLine(ctx, x0, y0, x1, y1);
-
-            // Draw max line down
-            x0 = barWidth / max * markings[i].max + leftPadding;
-            x1 = x0;
-            CanvasComponents.drawLine(ctx, x0, y0, x1, y1);
-
-            // Join min and max lines
-            x0 = barWidth / max * markings[i].min + leftPadding;
-            y0 = topPadding + barHeight + (bottomPadding * 0.3);
-            x1 = barWidth / max * markings[i].max + leftPadding;
-            y1 = y0;
-            CanvasComponents.drawLine(ctx, x0, y0, x1, y1);
-
-            // Add label
-            if (markings[i].max >= max * 0.9) {
-                ctx.textAlign = "right";
-                x0 = x1;
-            } else if (markings[i].max <= max * 0.1) {
-                ctx.textAlign = "left";
-            } else {
-                x0 = x0 + (x1 - x0) / 2;
-            }
-            y0 = topPadding + barHeight + (bottomPadding * 0.8);
-            ctx.fillText(markings[i].label, x0, y0);
-        }
-    },
-
-};
-
-export default CanvasComponents;

src/core/operations/ADD.mjs

@@ -0,0 +1,76 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import { bitOp, add } from "../lib/BitwiseOp";
+
+/**
+ * ADD operation
+ */
+class ADD extends Operation {
+
+    /**
+     * ADD constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "ADD";
+        this.module = "Default";
+        this.description = "ADD the input with the given key (e.g. <code>fe023da5</code>), MOD 255";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                "name": "Key",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "Base64", "UTF8", "Latin1"]
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const key = Utils.convertToByteArray(args[0].string || "", args[0].option);
+
+        return bitOp(input, key, add);
+    }
+
+    /**
+     * Highlight ADD
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight ADD in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default ADD;

src/core/operations/AESDecrypt.mjs

@@ -0,0 +1,108 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import forge from "node-forge/dist/forge.min.js";
+import OperationError from "../errors/OperationError";
+
+/**
+ * AES Decrypt operation
+ */
+class AESDecrypt extends Operation {
+
+    /**
+     * AESDecrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "AES Decrypt";
+        this.module = "Ciphers";
+        this.description = "Advanced Encryption Standard (AES) is a U.S. Federal Information Processing Standard (FIPS). It was selected after a 5-year process where 15 competing designs were evaluated.<br><br><b>Key:</b> The following algorithms will be used based on the size of the key:<ul><li>16 bytes = AES-128</li><li>24 bytes = AES-192</li><li>32 bytes = AES-256</li></ul><br><br><b>IV:</b> The Initialization Vector should be 16 bytes long. If not entered, it will default to 16 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.<br><br><b>GCM Tag:</b> This field is ignored unless 'GCM' mode is used.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Key",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "IV",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "Mode",
+                "type": "option",
+                "value": ["CBC", "CFB", "OFB", "CTR", "GCM", "ECB"]
+            },
+            {
+                "name": "Input",
+                "type": "option",
+                "value": ["Hex", "Raw"]
+            },
+            {
+                "name": "Output",
+                "type": "option",
+                "value": ["Raw", "Hex"]
+            },
+            {
+                "name": "GCM Tag",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     *
+     * @throws {OperationError} if cannot decrypt input or invalid key length
+     */
+    run(input, args) {
+        const key = Utils.convertToByteArray(args[0].string, args[0].option),
+            iv = Utils.convertToByteArray(args[1].string, args[1].option),
+            mode = args[2],
+            inputType = args[3],
+            outputType = args[4],
+            gcmTag = Utils.convertToByteString(args[5].string, args[5].option);
+
+        if ([16, 24, 32].indexOf(key.length) < 0) {
+            throw new OperationError(`Invalid key length: ${key.length} bytes
+
+The following algorithms will be used based on the size of the key:
+  16 bytes = AES-128
+  24 bytes = AES-192
+  32 bytes = AES-256`);
+        }
+
+        input = Utils.convertToByteString(input, inputType);
+
+        const decipher = forge.cipher.createDecipher("AES-" + mode, key);
+        decipher.start({
+            iv: iv,
+            tag: gcmTag
+        });
+        decipher.update(forge.util.createBuffer(input));
+        const result = decipher.finish();
+
+        if (result) {
+            return outputType === "Hex" ? decipher.output.toHex() : decipher.output.getBytes();
+        } else {
+            throw new OperationError("Unable to decrypt input with these parameters.");
+        }
+    }
+
+}
+
+export default AESDecrypt;

src/core/operations/AESEncrypt.mjs

@@ -0,0 +1,106 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import forge from "node-forge/dist/forge.min.js";
+import OperationError from "../errors/OperationError";
+
+/**
+ * AES Encrypt operation
+ */
+class AESEncrypt extends Operation {
+
+    /**
+     * AESEncrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "AES Encrypt";
+        this.module = "Ciphers";
+        this.description = "Advanced Encryption Standard (AES) is a U.S. Federal Information Processing Standard (FIPS). It was selected after a 5-year process where 15 competing designs were evaluated.<br><br><b>Key:</b> The following algorithms will be used based on the size of the key:<ul><li>16 bytes = AES-128</li><li>24 bytes = AES-192</li><li>32 bytes = AES-256</li></ul>You can generate a password-based key using one of the KDF operations.<br><br><b>IV:</b> The Initialization Vector should be 16 bytes long. If not entered, it will default to 16 null bytes.<br><br><b>Padding:</b> In CBC and ECB mode, PKCS#7 padding will be used.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Key",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "IV",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "Mode",
+                "type": "option",
+                "value": ["CBC", "CFB", "OFB", "CTR", "GCM", "ECB"]
+            },
+            {
+                "name": "Input",
+                "type": "option",
+                "value": ["Raw", "Hex"]
+            },
+            {
+                "name": "Output",
+                "type": "option",
+                "value": ["Hex", "Raw"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     *
+     * @throws {OperationError} if invalid key length
+     */
+    run(input, args) {
+        const key = Utils.convertToByteArray(args[0].string, args[0].option),
+            iv = Utils.convertToByteArray(args[1].string, args[1].option),
+            mode = args[2],
+            inputType = args[3],
+            outputType = args[4];
+
+        if ([16, 24, 32].indexOf(key.length) < 0) {
+            throw new OperationError(`Invalid key length: ${key.length} bytes
+
+The following algorithms will be used based on the size of the key:
+  16 bytes = AES-128
+  24 bytes = AES-192
+  32 bytes = AES-256`);
+        }
+
+        input = Utils.convertToByteString(input, inputType);
+
+        const cipher = forge.cipher.createCipher("AES-" + mode, key);
+        cipher.start({iv: iv});
+        cipher.update(forge.util.createBuffer(input));
+        cipher.finish();
+
+        if (outputType === "Hex") {
+            if (mode === "GCM") {
+                return cipher.output.toHex() + "\n\n" +
+                    "Tag: " + cipher.mode.tag.toHex();
+            }
+            return cipher.output.toHex();
+        } else {
+            if (mode === "GCM") {
+                return cipher.output.getBytes() + "\n\n" +
+                    "Tag: " + cipher.mode.tag.getBytes();
+            }
+            return cipher.output.getBytes();
+        }
+    }
+
+}
+
+export default AESEncrypt;

src/core/operations/AND.mjs

@@ -0,0 +1,76 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import { bitOp, and } from "../lib/BitwiseOp";
+
+/**
+ * AND operation
+ */
+class AND extends Operation {
+
+    /**
+     * AND constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "AND";
+        this.module = "Default";
+        this.description = "AND the input with the given key.<br>e.g. <code>fe023da5</code>";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                "name": "Key",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "Base64", "UTF8", "Latin1"]
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const key = Utils.convertToByteArray(args[0].string || "", args[0].option);
+
+        return bitOp(input, key, and);
+    }
+
+    /**
+     * Highlight AND
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight AND in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default AND;

src/core/operations/AddLineNumbers.mjs

@@ -0,0 +1,46 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Add line numbers operation
+ */
+class AddLineNumbers extends Operation {
+
+    /**
+     * AddLineNumbers constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Add line numbers";
+        this.module = "Default";
+        this.description = "Adds line numbers to the output.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const lines = input.split("\n"),
+            width = lines.length.toString().length;
+        let output = "";
+
+        for (let n = 0; n < lines.length; n++) {
+            output += (n+1).toString().padStart(width, " ") + " " + lines[n] + "\n";
+        }
+        return output.slice(0, output.length-1);
+    }
+
+}
+
+export default AddLineNumbers;

src/core/operations/Adler32Checksum.mjs

@@ -0,0 +1,52 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+
+/**
+ * Adler-32 Checksum operation
+ */
+class Adler32Checksum extends Operation {
+
+    /**
+     * Adler32Checksum constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Adler-32 Checksum";
+        this.module = "Hashing";
+        this.description = "Adler-32 is a checksum algorithm which was invented by Mark Adler in 1995, and is a modification of the Fletcher checksum. Compared to a cyclic redundancy check of the same length, it trades reliability for speed (preferring the latter).<br><br>Adler-32 is more reliable than Fletcher-16, and slightly less reliable than Fletcher-32.";
+        this.inputType = "byteArray";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const MOD_ADLER = 65521;
+        let a = 1,
+            b = 0;
+
+        for (let i = 0; i < input.length; i++) {
+            a += input[i];
+            b += a;
+        }
+
+        a %= MOD_ADLER;
+        b %= MOD_ADLER;
+
+        return Utils.hex(((b << 16) | a) >>> 0, 8);
+    }
+
+}
+
+export default Adler32Checksum;

src/core/operations/AffineCipherDecode.mjs

@@ -0,0 +1,105 @@
+/**
+ * @author Matt C [matt@artemisbot.uk]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Affine Cipher Decode operation
+ */
+class AffineCipherDecode extends Operation {
+
+    /**
+     * AffineCipherDecode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Affine Cipher Decode";
+        this.module = "Ciphers";
+        this.description = "The Affine cipher is a type of monoalphabetic substitution cipher. To decrypt, each letter in an alphabet is mapped to its numeric equivalent, decrypted by a mathematical function, and converted back to a letter.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "a",
+                "type": "number",
+                "value": 1
+            },
+            {
+                "name": "b",
+                "type": "number",
+                "value": 0
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     *
+     * @throws {OperationError} if a or b values are invalid
+     */
+    run(input, args) {
+        const alphabet = "abcdefghijklmnopqrstuvwxyz",
+            [a, b] = args,
+            aModInv = Utils.modInv(a, 26); // Calculates modular inverse of a
+        let output = "";
+
+        if (!/^\+?(0|[1-9]\d*)$/.test(a) || !/^\+?(0|[1-9]\d*)$/.test(b)) {
+            throw new OperationError("The values of a and b can only be integers.");
+        }
+
+        if (Utils.gcd(a, 26) !== 1) {
+            throw new OperationError("The value of `a` must be coprime to 26.");
+        }
+
+        for (let i = 0; i < input.length; i++) {
+            if (alphabet.indexOf(input[i]) >= 0) {
+                // Uses the affine decode function (y-b * A') % m = x (where m is length of the alphabet and A' is modular inverse)
+                output += alphabet[Utils.mod((alphabet.indexOf(input[i]) - b) * aModInv, 26)];
+            } else if (alphabet.indexOf(input[i].toLowerCase()) >= 0) {
+                // Same as above, accounting for uppercase
+                output += alphabet[Utils.mod((alphabet.indexOf(input[i].toLowerCase()) - b) * aModInv, 26)].toUpperCase();
+            } else {
+                // Non-alphabetic characters
+                output += input[i];
+            }
+        }
+        return output;
+    }
+
+    /**
+     * Highlight Affine Cipher Decode
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Affine Cipher Decode in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default AffineCipherDecode;

src/core/operations/AffineCipherEncode.mjs

@@ -0,0 +1,77 @@
+/**
+ * @author Matt C [matt@artemisbot.uk]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import { affineEncode } from "../lib/Ciphers";
+
+/**
+ * Affine Cipher Encode operation
+ */
+class AffineCipherEncode extends Operation {
+
+    /**
+     * AffineCipherEncode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Affine Cipher Encode";
+        this.module = "Ciphers";
+        this.description = "The Affine cipher is a type of monoalphabetic substitution cipher, wherein each letter in an alphabet is mapped to its numeric equivalent, encrypted using simple mathematical function, <code>(ax + b) % 26</code>, and converted back to a letter.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "a",
+                "type": "number",
+                "value": 1
+            },
+            {
+                "name": "b",
+                "type": "number",
+                "value": 0
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        return affineEncode(input, args);
+    }
+
+    /**
+     * Highlight Affine Cipher Encode
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Affine Cipher Encode in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default AffineCipherEncode;

src/core/operations/AnalyseHash.mjs

@@ -0,0 +1,183 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Analyse hash operation
+ */
+class AnalyseHash extends Operation {
+
+    /**
+     * AnalyseHash constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Analyse hash";
+        this.module = "Hashing";
+        this.description = "Tries to determine information about a given hash and suggests which algorithm may have been used to generate it based on its length.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        input = input.replace(/\s/g, "");
+
+        let output = "",
+            possibleHashFunctions = [];
+        const byteLength = input.length / 2,
+            bitLength = byteLength * 8;
+
+        if (!/^[a-f0-9]+$/i.test(input)) {
+            throw new OperationError("Invalid hash");
+        }
+
+        output += "Hash length: " + input.length + "\n" +
+            "Byte length: " + byteLength + "\n" +
+            "Bit length:  " + bitLength + "\n\n" +
+            "Based on the length, this hash could have been generated by one of the following hashing functions:\n";
+
+        switch (bitLength) {
+            case 4:
+                possibleHashFunctions = [
+                    "Fletcher-4",
+                    "Luhn algorithm",
+                    "Verhoeff algorithm",
+                ];
+                break;
+            case 8:
+                possibleHashFunctions = [
+                    "Fletcher-8",
+                ];
+                break;
+            case 16:
+                possibleHashFunctions = [
+                    "BSD checksum",
+                    "CRC-16",
+                    "SYSV checksum",
+                    "Fletcher-16"
+                ];
+                break;
+            case 32:
+                possibleHashFunctions = [
+                    "CRC-32",
+                    "Fletcher-32",
+                    "Adler-32",
+                ];
+                break;
+            case 64:
+                possibleHashFunctions = [
+                    "CRC-64",
+                    "RIPEMD-64",
+                    "SipHash",
+                ];
+                break;
+            case 128:
+                possibleHashFunctions = [
+                    "MD5",
+                    "MD4",
+                    "MD2",
+                    "HAVAL-128",
+                    "RIPEMD-128",
+                    "Snefru",
+                    "Tiger-128",
+                ];
+                break;
+            case 160:
+                possibleHashFunctions = [
+                    "SHA-1",
+                    "SHA-0",
+                    "FSB-160",
+                    "HAS-160",
+                    "HAVAL-160",
+                    "RIPEMD-160",
+                    "Tiger-160",
+                ];
+                break;
+            case 192:
+                possibleHashFunctions = [
+                    "Tiger",
+                    "HAVAL-192",
+                ];
+                break;
+            case 224:
+                possibleHashFunctions = [
+                    "SHA-224",
+                    "SHA3-224",
+                    "ECOH-224",
+                    "FSB-224",
+                    "HAVAL-224",
+                ];
+                break;
+            case 256:
+                possibleHashFunctions = [
+                    "SHA-256",
+                    "SHA3-256",
+                    "BLAKE-256",
+                    "ECOH-256",
+                    "FSB-256",
+                    "GOST",
+                    "Grøstl-256",
+                    "HAVAL-256",
+                    "PANAMA",
+                    "RIPEMD-256",
+                    "Snefru",
+                ];
+                break;
+            case 320:
+                possibleHashFunctions = [
+                    "RIPEMD-320",
+                ];
+                break;
+            case 384:
+                possibleHashFunctions = [
+                    "SHA-384",
+                    "SHA3-384",
+                    "ECOH-384",
+                    "FSB-384",
+                ];
+                break;
+            case 512:
+                possibleHashFunctions = [
+                    "SHA-512",
+                    "SHA3-512",
+                    "BLAKE-512",
+                    "ECOH-512",
+                    "FSB-512",
+                    "Grøstl-512",
+                    "JH",
+                    "MD6",
+                    "Spectral Hash",
+                    "SWIFFT",
+                    "Whirlpool",
+                ];
+                break;
+            case 1024:
+                possibleHashFunctions = [
+                    "Fowler-Noll-Vo",
+                ];
+                break;
+            default:
+                possibleHashFunctions = [
+                    "Unknown"
+                ];
+                break;
+        }
+
+        return output + possibleHashFunctions.join("\n");
+    }
+
+}
+
+export default AnalyseHash;

src/core/operations/AtbashCipher.mjs

@@ -0,0 +1,66 @@
+/**
+ * @author Matt C [matt@artemisbot.uk]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import { affineEncode } from "../lib/Ciphers";
+
+/**
+ * Atbash Cipher operation
+ */
+class AtbashCipher extends Operation {
+
+    /**
+     * AtbashCipher constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Atbash Cipher";
+        this.module = "Ciphers";
+        this.description = "Atbash is a mono-alphabetic substitution cipher originally used to encode the Hebrew alphabet. It has been modified here for use with the Latin alphabet.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        return affineEncode(input, [25, 25]);
+    }
+
+    /**
+     * Highlight Atbash Cipher
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Atbash Cipher in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default AtbashCipher;

src/core/operations/BSONDeserialise.mjs

@@ -0,0 +1,50 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import bsonjs from "bson";
+import OperationError from "../errors/OperationError";
+
+/**
+ * BSON deserialise operation
+ */
+class BSONDeserialise extends Operation {
+
+    /**
+     * BSONDeserialise constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "BSON deserialise";
+        this.module = "BSON";
+        this.description = "BSON is a computer data interchange format used mainly as a data storage and network transfer format in the MongoDB database. It is a binary form for representing simple data structures, associative arrays (called objects or documents in MongoDB), and various data types of specific interest to MongoDB. The name 'BSON' is based on the term JSON and stands for 'Binary JSON'.<br><br>Input data should be in a raw bytes format.";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        if (!input.byteLength) return "";
+
+        const bson = new bsonjs();
+
+        try {
+            const data = bson.deserialize(new Buffer(input));
+            return JSON.stringify(data, null, 2);
+        } catch (err) {
+            throw new OperationError(err.toString());
+        }
+    }
+
+}
+
+export default BSONDeserialise;

src/core/operations/BSONSerialise.mjs

@@ -0,0 +1,50 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import bsonjs from "bson";
+import OperationError from "../errors/OperationError";
+
+/**
+ * BSON serialise operation
+ */
+class BSONSerialise extends Operation {
+
+    /**
+     * BSONSerialise constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "BSON serialise";
+        this.module = "BSON";
+        this.description = "BSON is a computer data interchange format used mainly as a data storage and network transfer format in the MongoDB database. It is a binary form for representing simple data structures, associative arrays (called objects or documents in MongoDB), and various data types of specific interest to MongoDB. The name 'BSON' is based on the term JSON and stands for 'Binary JSON'.<br><br>Input data should be valid JSON.";
+        this.inputType = "string";
+        this.outputType = "ArrayBuffer";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {ArrayBuffer}
+     */
+    run(input, args) {
+        if (!input) return new ArrayBuffer();
+
+        const bson = new bsonjs();
+
+        try {
+            const data = JSON.parse(input);
+            return bson.serialize(data).buffer;
+        } catch (err) {
+            throw new OperationError(err.toString());
+        }
+    }
+
+}
+
+export default BSONSerialise;

src/core/operations/Base64.js

@@ -1,347 +0,0 @@
-import Utils from "../Utils.js";
-
-
-/**
- * Base64 operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @namespace
- */
-const Base64 = {
-
-    /**
-     * @constant
-     * @default
-     */
-    ALPHABET: "A-Za-z0-9+/=",
-    /**
-     * @constant
-     * @default
-     */
-    ALPHABET_OPTIONS: [
-        {name: "Standard: A-Za-z0-9+/=", value: "A-Za-z0-9+/="},
-        {name: "URL safe: A-Za-z0-9-_", value: "A-Za-z0-9-_"},
-        {name: "Filename safe: A-Za-z0-9+-=", value: "A-Za-z0-9+\\-="},
-        {name: "itoa64: ./0-9A-Za-z=", value: "./0-9A-Za-z="},
-        {name: "XML: A-Za-z0-9_.", value: "A-Za-z0-9_."},
-        {name: "y64: A-Za-z0-9._-", value: "A-Za-z0-9._-"},
-        {name: "z64: 0-9a-zA-Z+/=", value: "0-9a-zA-Z+/="},
-        {name: "Radix-64: 0-9A-Za-z+/=", value: "0-9A-Za-z+/="},
-        {name: "Uuencoding: [space]-_", value: " -_"},
-        {name: "Xxencoding: +-0-9A-Za-z", value: "+\\-0-9A-Za-z"},
-        {name: "BinHex: !-,-0-689@A-NP-VX-Z[`a-fh-mp-r", value: "!-,-0-689@A-NP-VX-Z[`a-fh-mp-r"},
-        {name: "ROT13: N-ZA-Mn-za-m0-9+/=", value: "N-ZA-Mn-za-m0-9+/="},
-        {name: "UNIX crypt: ./0-9A-Za-z", value: "./0-9A-Za-z"},
-    ],
-
-    /**
-     * To Base64 operation.
-     *
-     * @param {ArrayBuffer} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runTo: function(input, args) {
-        const alphabet = args[0] || Base64.ALPHABET;
-        return Utils.toBase64(new Uint8Array(input), alphabet);
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    REMOVE_NON_ALPH_CHARS: true,
-
-    /**
-     * From Base64 operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runFrom: function(input, args) {
-        let alphabet = args[0] || Base64.ALPHABET,
-            removeNonAlphChars = args[1];
-
-        return Utils.fromBase64(input, alphabet, "byteArray", removeNonAlphChars);
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    BASE32_ALPHABET: "A-Z2-7=",
-
-    /**
-     * To Base32 operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runTo32: function(input, args) {
-        if (!input) return "";
-
-        let alphabet = args[0] ?
-                Utils.expandAlphRange(args[0]).join("") : "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567=",
-            output = "",
-            chr1, chr2, chr3, chr4, chr5,
-            enc1, enc2, enc3, enc4, enc5, enc6, enc7, enc8,
-            i = 0;
-
-        while (i < input.length) {
-            chr1 = input[i++];
-            chr2 = input[i++];
-            chr3 = input[i++];
-            chr4 = input[i++];
-            chr5 = input[i++];
-
-            enc1 = chr1 >> 3;
-            enc2 = ((chr1 & 7) << 2) | (chr2 >> 6);
-            enc3 = (chr2 >> 1) & 31;
-            enc4 = ((chr2 & 1) << 4) | (chr3 >> 4);
-            enc5 = ((chr3 & 15) << 1) | (chr4 >> 7);
-            enc6 = (chr4 >> 2) & 31;
-            enc7 = ((chr4 & 3) << 3) | (chr5 >> 5);
-            enc8 = chr5 & 31;
-
-            if (isNaN(chr2)) {
-                enc3 = enc4 = enc5 = enc6 = enc7 = enc8 = 32;
-            } else if (isNaN(chr3)) {
-                enc5 = enc6 = enc7 = enc8 = 32;
-            } else if (isNaN(chr4)) {
-                enc6 = enc7 = enc8 = 32;
-            } else if (isNaN(chr5)) {
-                enc8 = 32;
-            }
-
-            output += alphabet.charAt(enc1) + alphabet.charAt(enc2) + alphabet.charAt(enc3) +
-                alphabet.charAt(enc4) + alphabet.charAt(enc5) + alphabet.charAt(enc6) +
-                alphabet.charAt(enc7) + alphabet.charAt(enc8);
-        }
-
-        return output;
-    },
-
-
-    /**
-     * From Base32 operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runFrom32: function(input, args) {
-        if (!input) return [];
-
-        let alphabet = args[0] ?
-                Utils.expandAlphRange(args[0]).join("") : "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567=",
-            removeNonAlphChars = args[0];
-
-        let output = [],
-            chr1, chr2, chr3, chr4, chr5,
-            enc1, enc2, enc3, enc4, enc5, enc6, enc7, enc8,
-            i = 0;
-
-        if (removeNonAlphChars) {
-            const re = new RegExp("[^" + alphabet.replace(/[\]\\\-^]/g, "\\$&") + "]", "g");
-            input = input.replace(re, "");
-        }
-
-        while (i < input.length) {
-            enc1 = alphabet.indexOf(input.charAt(i++));
-            enc2 = alphabet.indexOf(input.charAt(i++) || "=");
-            enc3 = alphabet.indexOf(input.charAt(i++) || "=");
-            enc4 = alphabet.indexOf(input.charAt(i++) || "=");
-            enc5 = alphabet.indexOf(input.charAt(i++) || "=");
-            enc6 = alphabet.indexOf(input.charAt(i++) || "=");
-            enc7 = alphabet.indexOf(input.charAt(i++) || "=");
-            enc8 = alphabet.indexOf(input.charAt(i++) || "=");
-
-            chr1 = (enc1 << 3) | (enc2 >> 2);
-            chr2 = ((enc2 & 3) << 6) | (enc3 << 1) | (enc4 >> 4);
-            chr3 = ((enc4 & 15) << 4) | (enc5 >> 1);
-            chr4 = ((enc5 & 1) << 7) | (enc6 << 2) | (enc7 >> 3);
-            chr5 = ((enc7 & 7) << 5) | enc8;
-
-            output.push(chr1);
-            if (enc2 & 3 !== 0 || enc3 !== 32) output.push(chr2);
-            if (enc4 & 15 !== 0 || enc5 !== 32) output.push(chr3);
-            if (enc5 & 1 !== 0 || enc6 !== 32) output.push(chr4);
-            if (enc7 & 7 !== 0 || enc8 !== 32) output.push(chr5);
-        }
-
-        return output;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    SHOW_IN_BINARY: false,
-    /**
-     * @constant
-     * @default
-     */
-    OFFSETS_SHOW_VARIABLE: true,
-
-    /**
-     * Show Base64 offsets operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {html}
-     */
-    runOffsets: function(input, args) {
-        let alphabet = args[0] || Base64.ALPHABET,
-            showVariable = args[1],
-            offset0 = Utils.toBase64(input, alphabet),
-            offset1 = Utils.toBase64([0].concat(input), alphabet),
-            offset2 = Utils.toBase64([0, 0].concat(input), alphabet),
-            len0 = offset0.indexOf("="),
-            len1 = offset1.indexOf("="),
-            len2 = offset2.indexOf("="),
-            script = "<script type='application/javascript'>$('[data-toggle=\"tooltip\"]').tooltip()</script>",
-            staticSection = "",
-            padding = "";
-
-        if (input.length < 1) {
-            return "Please enter a string.";
-        }
-
-        // Highlight offset 0
-        if (len0 % 4 === 2) {
-            staticSection = offset0.slice(0, -3);
-            offset0 = "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64(staticSection, alphabet).slice(0, -2)) + "'>" +
-                staticSection + "</span>" +
-                "<span class='hl5'>" + offset0.substr(offset0.length - 3, 1) + "</span>" +
-                "<span class='hl3'>" + offset0.substr(offset0.length - 2) + "</span>";
-        } else if (len0 % 4 === 3) {
-            staticSection = offset0.slice(0, -2);
-            offset0 = "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64(staticSection, alphabet).slice(0, -1)) + "'>" +
-                staticSection + "</span>" +
-                "<span class='hl5'>" + offset0.substr(offset0.length - 2, 1) + "</span>" +
-                "<span class='hl3'>" + offset0.substr(offset0.length - 1) + "</span>";
-        } else {
-            staticSection = offset0;
-            offset0 = "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64(staticSection, alphabet)) + "'>" +
-                staticSection + "</span>";
-        }
-
-        if (!showVariable) {
-            offset0 = staticSection;
-        }
-
-
-        // Highlight offset 1
-        padding = "<span class='hl3'>" + offset1.substr(0, 1) + "</span>" +
-            "<span class='hl5'>" + offset1.substr(1, 1) + "</span>";
-        offset1 = offset1.substr(2);
-        if (len1 % 4 === 2) {
-            staticSection = offset1.slice(0, -3);
-            offset1 = padding + "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64("AA" + staticSection, alphabet).slice(1, -2)) + "'>" +
-                staticSection + "</span>" +
-                "<span class='hl5'>" + offset1.substr(offset1.length - 3, 1) + "</span>" +
-                "<span class='hl3'>" + offset1.substr(offset1.length - 2) + "</span>";
-        } else if (len1 % 4 === 3) {
-            staticSection = offset1.slice(0, -2);
-            offset1 = padding + "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64("AA" + staticSection, alphabet).slice(1, -1)) + "'>" +
-                staticSection + "</span>" +
-                "<span class='hl5'>" + offset1.substr(offset1.length - 2, 1) + "</span>" +
-                "<span class='hl3'>" + offset1.substr(offset1.length - 1) + "</span>";
-        } else {
-            staticSection = offset1;
-            offset1 = padding +  "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64("AA" + staticSection, alphabet).slice(1)) + "'>" +
-                staticSection + "</span>";
-        }
-
-        if (!showVariable) {
-            offset1 = staticSection;
-        }
-
-        // Highlight offset 2
-        padding = "<span class='hl3'>" + offset2.substr(0, 2) + "</span>" +
-            "<span class='hl5'>" + offset2.substr(2, 1) + "</span>";
-        offset2 = offset2.substr(3);
-        if (len2 % 4 === 2) {
-            staticSection = offset2.slice(0, -3);
-            offset2 = padding + "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64("AAA" + staticSection, alphabet).slice(2, -2)) + "'>" +
-                staticSection + "</span>" +
-                "<span class='hl5'>" + offset2.substr(offset2.length - 3, 1) + "</span>" +
-                "<span class='hl3'>" + offset2.substr(offset2.length - 2) + "</span>";
-        } else if (len2 % 4 === 3) {
-            staticSection = offset2.slice(0, -2);
-            offset2 = padding + "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64("AAA" + staticSection, alphabet).slice(2, -2)) + "'>" +
-                staticSection + "</span>" +
-                "<span class='hl5'>" + offset2.substr(offset2.length - 2, 1) + "</span>" +
-                "<span class='hl3'>" + offset2.substr(offset2.length - 1) + "</span>";
-        } else {
-            staticSection = offset2;
-            offset2 = padding +  "<span data-toggle='tooltip' data-placement='top' title='" +
-                Utils.escapeHtml(Utils.fromBase64("AAA" + staticSection, alphabet).slice(2)) + "'>" +
-                staticSection + "</span>";
-        }
-
-        if (!showVariable) {
-            offset2 = staticSection;
-        }
-
-        return (showVariable ? "Characters highlighted in <span class='hl5'>green</span> could change if the input is surrounded by more data." +
-            "\nCharacters highlighted in <span class='hl3'>red</span> are for padding purposes only." +
-            "\nUnhighlighted characters are <span data-toggle='tooltip' data-placement='top' title='Tooltip on left'>static</span>." +
-            "\nHover over the static sections to see what they decode to on their own.\n" +
-            "\nOffset 0: " + offset0 +
-            "\nOffset 1: " + offset1 +
-            "\nOffset 2: " + offset2 +
-            script :
-            offset0 + "\n" + offset1 + "\n" + offset2);
-    },
-
-
-    /**
-     * Highlight to Base64
-     *
-     * @param {Object[]} pos
-     * @param {number} pos[].start
-     * @param {number} pos[].end
-     * @param {Object[]} args
-     * @returns {Object[]} pos
-     */
-    highlightTo: function(pos, args) {
-        pos[0].start = Math.floor(pos[0].start / 3 * 4);
-        pos[0].end = Math.ceil(pos[0].end / 3 * 4);
-        return pos;
-    },
-
-    /**
-     * Highlight from Base64
-     *
-     * @param {Object[]} pos
-     * @param {number} pos[].start
-     * @param {number} pos[].end
-     * @param {Object[]} args
-     * @returns {Object[]} pos
-     */
-    highlightFrom: function(pos, args) {
-        pos[0].start = Math.ceil(pos[0].start / 4 * 3);
-        pos[0].end = Math.floor(pos[0].end / 4 * 3);
-        return pos;
-    },
-
-};
-
-export default Base64;

src/core/operations/Bcrypt.mjs

@@ -0,0 +1,54 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import bcrypt from "bcryptjs";
+
+/**
+ * Bcrypt operation
+ */
+class Bcrypt extends Operation {
+
+    /**
+     * Bcrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bcrypt";
+        this.module = "Hashing";
+        this.description = "bcrypt is a password hashing function designed by Niels Provos and David Mazi\xe8res, based on the Blowfish cipher, and presented at USENIX in 1999. Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive function: over time, the iteration count (rounds) can be increased to make it slower, so it remains resistant to brute-force search attacks even with increasing computation power.<br><br>Enter the password in the input to generate its hash.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Rounds",
+                "type": "number",
+                "value": 10
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    async run(input, args) {
+        const rounds = args[0];
+        const salt = await bcrypt.genSalt(rounds);
+
+        return await bcrypt.hash(input, salt, null, p => {
+            // Progress callback
+            if (ENVIRONMENT_IS_WORKER())
+                self.sendStatusMessage(`Progress: ${(p * 100).toFixed(0)}%`);
+        });
+
+    }
+
+}
+
+export default Bcrypt;

src/core/operations/BcryptCompare.mjs

@@ -0,0 +1,55 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import bcrypt from "bcryptjs";
+
+/**
+ * Bcrypt compare operation
+ */
+class BcryptCompare extends Operation {
+
+    /**
+     * BcryptCompare constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bcrypt compare";
+        this.module = "Hashing";
+        this.description = "Tests whether the input matches the given bcrypt hash. To test multiple possible passwords, use the 'Fork' operation.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Hash",
+                "type": "string",
+                "value": ""
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    async run(input, args) {
+        const hash = args[0];
+
+        const match = await bcrypt.compare(input, hash, null, p => {
+            // Progress callback
+            if (ENVIRONMENT_IS_WORKER())
+                self.sendStatusMessage(`Progress: ${(p * 100).toFixed(0)}%`);
+        });
+
+        return match ? "Match: " + input : "No match";
+
+    }
+
+}
+
+export default BcryptCompare;

src/core/operations/BcryptParse.mjs

@@ -0,0 +1,48 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import OperationError from "../errors/OperationError";
+import bcrypt from "bcryptjs";
+
+/**
+ * Bcrypt parse operation
+ */
+class BcryptParse extends Operation {
+
+    /**
+     * BcryptParse constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bcrypt parse";
+        this.module = "Hashing";
+        this.description = "Parses a bcrypt hash to determine the number of rounds used, the salt, and the password hash.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    async run(input, args) {
+        try {
+            return `Rounds: ${bcrypt.getRounds(input)}
+Salt: ${bcrypt.getSalt(input)}
+Password hash: ${input.split(bcrypt.getSalt(input))[1]}
+Full hash: ${input}`;
+        } catch (err) {
+            throw new OperationError("Error: " + err.toString());
+        }
+    }
+
+}
+
+export default BcryptParse;

src/core/operations/BifidCipherDecode.mjs

@@ -0,0 +1,124 @@
+/**
+ * @author Matt C [matt@artemisbot.uk]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import { genPolybiusSquare } from "../lib/Ciphers";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Bifid Cipher Decode operation
+ */
+class BifidCipherDecode extends Operation {
+
+    /**
+     * BifidCipherDecode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bifid Cipher Decode";
+        this.module = "Ciphers";
+        this.description = "The Bifid cipher is a cipher which uses a Polybius square in conjunction with transposition, which can be fairly difficult to decipher without knowing the alphabet keyword.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Keyword",
+                "type": "string",
+                "value": ""
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     *
+     * @throws {OperationError} if invalid key
+     */
+    run(input, args) {
+        const keywordStr = args[0].toUpperCase().replace("J", "I"),
+            keyword = keywordStr.split("").unique(),
+            alpha = "ABCDEFGHIKLMNOPQRSTUVWXYZ",
+            structure = [];
+
+        let output = "",
+            count = 0,
+            trans = "";
+
+        if (!/^[A-Z]+$/.test(keywordStr) && keyword.length > 0)
+            throw new OperationError("The key must consist only of letters in the English alphabet");
+
+        const polybius = genPolybiusSquare(keywordStr);
+
+        input.replace("J", "I").split("").forEach((letter) => {
+            const alpInd = alpha.split("").indexOf(letter.toLocaleUpperCase()) >= 0;
+            let polInd;
+
+            if (alpInd) {
+                for (let i = 0; i < 5; i++) {
+                    polInd = polybius[i].indexOf(letter.toLocaleUpperCase());
+                    if (polInd >= 0) {
+                        trans += `${i}${polInd}`;
+                    }
+                }
+
+                if (alpha.split("").indexOf(letter) >= 0) {
+                    structure.push(true);
+                } else if (alpInd) {
+                    structure.push(false);
+                }
+            } else {
+                structure.push(letter);
+            }
+        });
+
+        structure.forEach(pos => {
+            if (typeof pos === "boolean") {
+                const coords = [trans[count], trans[count+trans.length/2]];
+
+                output += pos ?
+                    polybius[coords[0]][coords[1]] :
+                    polybius[coords[0]][coords[1]].toLocaleLowerCase();
+                count++;
+            } else {
+                output += pos;
+            }
+        });
+
+        return output;
+    }
+
+    /**
+     * Highlight Bifid Cipher Decode
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Bifid Cipher Decode in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default BifidCipherDecode;

src/core/operations/BifidCipherEncode.mjs

@@ -0,0 +1,129 @@
+/**
+ * @author Matt C [matt@artemisbot.uk]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import OperationError from "../errors/OperationError";
+import { genPolybiusSquare } from "../lib/Ciphers";
+
+/**
+ * Bifid Cipher Encode operation
+ */
+class BifidCipherEncode extends Operation {
+
+    /**
+     * BifidCipherEncode constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bifid Cipher Encode";
+        this.module = "Ciphers";
+        this.description = "The Bifid cipher is a cipher which uses a Polybius square in conjunction with transposition, which can be fairly difficult to decipher without knowing the alphabet keyword.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Keyword",
+                "type": "string",
+                "value": ""
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     *
+     * @throws {OperationError} if key is invalid
+     */
+    run(input, args) {
+        const keywordStr = args[0].toUpperCase().replace("J", "I"),
+            keyword = keywordStr.split("").unique(),
+            alpha = "ABCDEFGHIKLMNOPQRSTUVWXYZ",
+            xCo = [],
+            yCo = [],
+            structure = [];
+
+        let output = "",
+            count = 0;
+
+
+        if (!/^[A-Z]+$/.test(keywordStr) && keyword.length > 0)
+            throw new OperationError("The key must consist only of letters in the English alphabet");
+
+        const polybius = genPolybiusSquare(keywordStr);
+
+        input.replace("J", "I").split("").forEach(letter => {
+            const alpInd = alpha.split("").indexOf(letter.toLocaleUpperCase()) >= 0;
+            let polInd;
+
+            if (alpInd) {
+                for (let i = 0; i < 5; i++) {
+                    polInd = polybius[i].indexOf(letter.toLocaleUpperCase());
+                    if (polInd >= 0) {
+                        xCo.push(polInd);
+                        yCo.push(i);
+                    }
+                }
+
+                if (alpha.split("").indexOf(letter) >= 0) {
+                    structure.push(true);
+                } else if (alpInd) {
+                    structure.push(false);
+                }
+            } else {
+                structure.push(letter);
+            }
+        });
+
+        const trans = `${yCo.join("")}${xCo.join("")}`;
+
+        structure.forEach(pos => {
+            if (typeof pos === "boolean") {
+                const coords = trans.substr(2*count, 2).split("");
+
+                output += pos ?
+                    polybius[coords[0]][coords[1]] :
+                    polybius[coords[0]][coords[1]].toLocaleLowerCase();
+                count++;
+            } else {
+                output += pos;
+            }
+        });
+
+        return output;
+    }
+
+    /**
+     * Highlight Bifid Cipher Encode
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Bifid Cipher Encode in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default BifidCipherEncode;

src/core/operations/BitShiftLeft.mjs

@@ -0,0 +1,75 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Bit shift left operation
+ */
+class BitShiftLeft extends Operation {
+
+    /**
+     * BitShiftLeft constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bit shift left";
+        this.module = "Default";
+        this.description = "Shifts the bits in each byte towards the left by the specified amount.";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                "name": "Amount",
+                "type": "number",
+                "value": 1
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const amount = args[0];
+
+        return input.map(b => {
+            return (b << amount) & 0xff;
+        });
+    }
+
+    /**
+     * Highlight Bit shift left
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Bit shift left in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default BitShiftLeft;

src/core/operations/BitShiftRight.mjs

@@ -0,0 +1,82 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Bit shift right operation
+ */
+class BitShiftRight extends Operation {
+
+    /**
+     * BitShiftRight constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bit shift right";
+        this.module = "Default";
+        this.description = "Shifts the bits in each byte towards the right by the specified amount.<br><br><i>Logical shifts</i> replace the leftmost bits with zeros.<br><i>Arithmetic shifts</i> preserve the most significant bit (MSB) of the original byte keeping the sign the same (positive or negative).";
+        this.inputType = "byteArray";
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                "name": "Amount",
+                "type": "number",
+                "value": 1
+            },
+            {
+                "name": "Type",
+                "type": "option",
+                "value": ["Logical shift", "Arithmetic shift"]
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {byteArray}
+     */
+    run(input, args) {
+        const amount = args[0],
+            type = args[1],
+            mask = type === "Logical shift" ? 0 : 0x80;
+
+        return input.map(b => {
+            return (b >>> amount) ^ (b & mask);
+        });
+    }
+
+    /**
+     * Highlight Bit shift right
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlight(pos, args) {
+        return pos;
+    }
+
+    /**
+     * Highlight Bit shift right in reverse
+     *
+     * @param {Object[]} pos
+     * @param {number} pos[].start
+     * @param {number} pos[].end
+     * @param {Object[]} args
+     * @returns {Object[]} pos
+     */
+    highlightReverse(pos, args) {
+        return pos;
+    }
+
+}
+
+export default BitShiftRight;

src/core/operations/BitwiseOp.js

@@ -1,368 +0,0 @@
-import Utils from "../Utils.js";
-
-
-/**
- * Bitwise operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @namespace
- */
-const BitwiseOp = {
-
-    /**
-     * Runs bitwise operations across the input data.
-     *
-     * @private
-     * @param {byteArray} input
-     * @param {byteArray} key
-     * @param {function} func - The bitwise calculation to carry out
-     * @param {boolean} nullPreserving
-     * @param {string} scheme
-     * @returns {byteArray}
-     */
-    _bitOp: function (input, key, func, nullPreserving, scheme) {
-        if (!key || !key.length) key = [0];
-        let result = [],
-            x = null,
-            k = null,
-            o = null;
-
-        for (let i = 0; i < input.length; i++) {
-            k = key[i % key.length];
-            o = input[i];
-            x = nullPreserving && (o === 0 || o === k) ? o : func(o, k);
-            result.push(x);
-            if (scheme &&
-                scheme !== "Standard" &&
-                !(nullPreserving && (o === 0 || o === k))) {
-                switch (scheme) {
-                    case "Input differential":
-                        key[i % key.length] = x;
-                        break;
-                    case "Output differential":
-                        key[i % key.length] = o;
-                        break;
-                }
-            }
-        }
-
-        return result;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    XOR_PRESERVE_NULLS: false,
-    /**
-     * @constant
-     * @default
-     */
-    XOR_SCHEME: ["Standard", "Input differential", "Output differential"],
-    /**
-     * @constant
-     * @default
-     */
-    KEY_FORMAT: ["Hex", "Base64", "UTF8", "Latin1"],
-
-    /**
-     * XOR operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runXor: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string || "", args[0].option),
-            scheme = args[1],
-            nullPreserving = args[2];
-
-        return BitwiseOp._bitOp(input, key, BitwiseOp._xor, nullPreserving, scheme);
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    XOR_BRUTE_KEY_LENGTH: 1,
-    /**
-     * @constant
-     * @default
-     */
-    XOR_BRUTE_SAMPLE_LENGTH: 100,
-    /**
-     * @constant
-     * @default
-     */
-    XOR_BRUTE_SAMPLE_OFFSET: 0,
-    /**
-     * @constant
-     * @default
-     */
-    XOR_BRUTE_PRINT_KEY: true,
-    /**
-     * @constant
-     * @default
-     */
-    XOR_BRUTE_OUTPUT_HEX: false,
-
-    /**
-     * XOR Brute Force operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runXorBrute: function (input, args) {
-        const keyLength = args[0],
-            sampleLength = args[1],
-            sampleOffset = args[2],
-            scheme = args[3],
-            nullPreserving = args[4],
-            printKey = args[5],
-            outputHex = args[6],
-            crib = args[7].toLowerCase();
-
-        let output = [],
-            result,
-            resultUtf8,
-            record = "";
-
-        input = input.slice(sampleOffset, sampleOffset + sampleLength);
-
-        if (ENVIRONMENT_IS_WORKER())
-            self.sendStatusMessage("Calculating " + Math.pow(256, keyLength) + " values...");
-
-        /**
-         * Converts an integer to an array of bytes expressing that number.
-         *
-         * @param {number} int
-         * @param {number} len - Length of the resulting array
-         * @returns {array}
-         */
-        const intToByteArray = (int, len) => {
-            let res = Array(len).fill(0);
-            for (let i = len - 1; i >= 0; i--) {
-                res[i] = int & 0xff;
-                int = int >>> 8;
-            }
-            return res;
-        };
-
-        for (let key = 1, l = Math.pow(256, keyLength); key < l; key++) {
-            if (key % 10000 === 0 && ENVIRONMENT_IS_WORKER()) {
-                self.sendStatusMessage("Calculating " + l + " values... " + Math.floor(key / l * 100) + "%");
-            }
-
-            result = BitwiseOp._bitOp(input, intToByteArray(key, keyLength), BitwiseOp._xor, nullPreserving, scheme);
-            resultUtf8 = Utils.byteArrayToUtf8(result);
-            record = "";
-
-            if (crib && resultUtf8.toLowerCase().indexOf(crib) < 0) continue;
-            if (printKey) record += "Key = " + Utils.hex(key, (2*keyLength)) + ": ";
-            if (outputHex) {
-                record += Utils.toHex(result);
-            } else {
-                record += Utils.printable(resultUtf8, false);
-            }
-
-            output.push(record);
-        }
-
-        return output.join("\n");
-    },
-
-
-    /**
-     * NOT operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runNot: function (input, args) {
-        return BitwiseOp._bitOp(input, null, BitwiseOp._not);
-    },
-
-
-    /**
-     * AND operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runAnd: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string || "", args[0].option);
-
-        return BitwiseOp._bitOp(input, key, BitwiseOp._and);
-    },
-
-
-    /**
-     * OR operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runOr: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string || "", args[0].option);
-
-        return BitwiseOp._bitOp(input, key, BitwiseOp._or);
-    },
-
-
-    /**
-     * ADD operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runAdd: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string || "", args[0].option);
-
-        return BitwiseOp._bitOp(input, key, BitwiseOp._add);
-    },
-
-
-    /**
-     * SUB operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runSub: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string || "", args[0].option);
-
-        return BitwiseOp._bitOp(input, key, BitwiseOp._sub);
-    },
-
-
-    /**
-     * Bit shift left operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runBitShiftLeft: function(input, args) {
-        const amount = args[0];
-
-        return input.map(b => {
-            return (b << amount) & 0xff;
-        });
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    BIT_SHIFT_TYPE: ["Logical shift", "Arithmetic shift"],
-
-    /**
-     * Bit shift right operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runBitShiftRight: function(input, args) {
-        const amount = args[0],
-            type = args[1],
-            mask = type === "Logical shift" ? 0 : 0x80;
-
-        return input.map(b => {
-            return (b >>> amount) ^ (b & mask);
-        });
-    },
-
-
-    /**
-     * XOR bitwise calculation.
-     *
-     * @private
-     * @param {number} operand
-     * @param {number} key
-     * @returns {number}
-     */
-    _xor: function (operand, key) {
-        return operand ^ key;
-    },
-
-
-    /**
-     * NOT bitwise calculation.
-     *
-     * @private
-     * @param {number} operand
-     * @returns {number}
-     */
-    _not: function (operand, _) {
-        return ~operand & 0xff;
-    },
-
-
-    /**
-     * AND bitwise calculation.
-     *
-     * @private
-     * @param {number} operand
-     * @param {number} key
-     * @returns {number}
-     */
-    _and: function (operand, key) {
-        return operand & key;
-    },
-
-
-    /**
-     * OR bitwise calculation.
-     *
-     * @private
-     * @param {number} operand
-     * @param {number} key
-     * @returns {number}
-     */
-    _or: function (operand, key) {
-        return operand | key;
-    },
-
-
-    /**
-     * ADD bitwise calculation.
-     *
-     * @private
-     * @param {number} operand
-     * @param {number} key
-     * @returns {number}
-     */
-    _add: function (operand, key) {
-        return (operand + key) % 256;
-    },
-
-
-    /**
-     * SUB bitwise calculation.
-     *
-     * @private
-     * @param {number} operand
-     * @param {number} key
-     * @returns {number}
-     */
-    _sub: function (operand, key) {
-        const result = operand - key;
-        return (result < 0) ? 256 + result : result;
-    },
-
-};
-
-export default BitwiseOp;

src/core/operations/BlowfishDecrypt.mjs

@@ -0,0 +1,100 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import OperationError from "../errors/OperationError";
+import { Blowfish } from "../vendor/Blowfish";
+import { toBase64 } from "../lib/Base64";
+import { toHexFast } from "../lib/Hex";
+
+/**
+ * Lookup table for Blowfish output types.
+ */
+const BLOWFISH_OUTPUT_TYPE_LOOKUP = {
+    Base64: 0, Hex: 1, String: 2, Raw: 3
+};
+/**
+ * Lookup table for Blowfish modes.
+ */
+const BLOWFISH_MODE_LOOKUP = {
+    ECB: 0, CBC: 1, PCBC: 2, CFB: 3, OFB: 4, CTR: 5
+};
+
+/**
+ * Blowfish Decrypt operation
+ */
+class BlowfishDecrypt extends Operation {
+
+    /**
+     * BlowfishDecrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Blowfish Decrypt";
+        this.module = "Ciphers";
+        this.description = "Blowfish is a symmetric-key block cipher designed in 1993 by Bruce Schneier and included in a large number of cipher suites and encryption products. AES now receives more attention.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Key",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "IV",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "Mode",
+                "type": "option",
+                "value": ["CBC", "PCBC", "CFB", "OFB", "CTR", "ECB"]
+            },
+            {
+                "name": "Input",
+                "type": "option",
+                "value": ["Hex", "Base64", "Raw"]
+            },
+            {
+                "name": "Output",
+                "type": "option",
+                "value": ["Raw", "Hex"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const key = Utils.convertToByteString(args[0].string, args[0].option),
+            iv = Utils.convertToByteArray(args[1].string, args[1].option),
+            [,, mode, inputType, outputType] = args;
+
+        if (key.length === 0) throw new OperationError("Enter a key");
+
+        input = inputType === "Raw" ? Utils.strToByteArray(input) : input;
+
+        Blowfish.setIV(toBase64(iv), 0);
+
+        const result = Blowfish.decrypt(input, key, {
+            outputType: BLOWFISH_OUTPUT_TYPE_LOOKUP[inputType], // This actually means inputType. The library is weird.
+            cipherMode: BLOWFISH_MODE_LOOKUP[mode]
+        });
+
+        return outputType === "Hex" ? toHexFast(Utils.strToByteArray(result)) : result;
+    }
+
+}
+
+export default BlowfishDecrypt;

src/core/operations/BlowfishEncrypt.mjs

@@ -0,0 +1,101 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import OperationError from "../errors/OperationError";
+import { Blowfish } from "../vendor/Blowfish";
+import { toBase64 } from "../lib/Base64";
+
+/**
+ * Lookup table for Blowfish output types.
+ */
+const BLOWFISH_OUTPUT_TYPE_LOOKUP = {
+    Base64: 0, Hex: 1, String: 2, Raw: 3
+};
+
+/**
+ * Lookup table for Blowfish modes.
+ */
+const BLOWFISH_MODE_LOOKUP = {
+    ECB: 0, CBC: 1, PCBC: 2, CFB: 3, OFB: 4, CTR: 5
+};
+
+
+/**
+ * Blowfish Encrypt operation
+ */
+class BlowfishEncrypt extends Operation {
+
+    /**
+     * BlowfishEncrypt constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Blowfish Encrypt";
+        this.module = "Ciphers";
+        this.description = "Blowfish is a symmetric-key block cipher designed in 1993 by Bruce Schneier and included in a large number of cipher suites and encryption products. AES now receives more attention.<br><br><b>IV:</b> The Initialization Vector should be 8 bytes long. If not entered, it will default to 8 null bytes.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Key",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "IV",
+                "type": "toggleString",
+                "value": "",
+                "toggleValues": ["Hex", "UTF8", "Latin1", "Base64"]
+            },
+            {
+                "name": "Mode",
+                "type": "option",
+                "value": ["CBC", "PCBC", "CFB", "OFB", "CTR", "ECB"]
+            },
+            {
+                "name": "Input",
+                "type": "option",
+                "value": ["Raw", "Hex"]
+            },
+            {
+                "name": "Output",
+                "type": "option",
+                "value": ["Hex", "Base64", "Raw"]
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const key = Utils.convertToByteString(args[0].string, args[0].option),
+            iv = Utils.convertToByteArray(args[1].string, args[1].option),
+            [,, mode, inputType, outputType] = args;
+
+        if (key.length === 0) throw new OperationError("Enter a key");
+
+        input = Utils.convertToByteString(input, inputType);
+
+        Blowfish.setIV(toBase64(iv), 0);
+
+        const enc = Blowfish.encrypt(input, key, {
+            outputType: BLOWFISH_OUTPUT_TYPE_LOOKUP[outputType],
+            cipherMode: BLOWFISH_MODE_LOOKUP[mode]
+        });
+
+        return outputType === "Raw" ? Utils.byteArrayToChars(enc) : enc;
+    }
+
+}
+
+export default BlowfishEncrypt;

src/core/operations/Bzip2Decompress.mjs

@@ -0,0 +1,55 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import bzip2 from "../vendor/bzip2.js";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Bzip2 Decompress operation
+ */
+class Bzip2Decompress extends Operation {
+
+    /**
+     * Bzip2Decompress constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Bzip2 Decompress";
+        this.module = "Compression";
+        this.description = "Decompresses data using the Bzip2 algorithm.";
+        this.inputType = "byteArray";
+        this.outputType = "string";
+        this.args = [];
+        this.patterns = [
+            {
+                "match": "^\\x42\\x5a\\x68",
+                "flags": "",
+                "args": []
+            }
+        ];
+    }
+
+    /**
+     * @param {byteArray} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        const compressed = new Uint8Array(input);
+
+        try {
+            const bzip2Reader = bzip2.array(compressed);
+            return bzip2.simple(bzip2Reader);
+        } catch (err) {
+            throw new OperationError(err);
+        }
+    }
+
+}
+
+export default Bzip2Decompress;

src/core/operations/CRC16Checksum.mjs

@@ -0,0 +1,40 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import JSCRC from "js-crc";
+
+/**
+ * CRC-16 Checksum operation
+ */
+class CRC16Checksum extends Operation {
+
+    /**
+     * CRC16Checksum constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "CRC-16 Checksum";
+        this.module = "Hashing";
+        this.description = "A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data.<br><br>The CRC was invented by W. Wesley Peterson in 1961.";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        return JSCRC.crc16(input);
+    }
+
+}
+
+export default CRC16Checksum;

src/core/operations/CRC32Checksum.mjs

@@ -0,0 +1,40 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import JSCRC from "js-crc";
+
+/**
+ * CRC-32 Checksum operation
+ */
+class CRC32Checksum extends Operation {
+
+    /**
+     * CRC32Checksum constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "CRC-32 Checksum";
+        this.module = "Hashing";
+        this.description = "A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data.<br><br>The CRC was invented by W. Wesley Peterson in 1961; the 32-bit CRC function of Ethernet and many other standards is the work of several researchers and was published in 1975.";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        return JSCRC.crc32(input);
+    }
+
+}
+
+export default CRC32Checksum;

src/core/operations/CTPH.mjs

@@ -0,0 +1,40 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import ctphjs from "ctph.js";
+
+/**
+ * CTPH operation
+ */
+class CTPH extends Operation {
+
+    /**
+     * CTPH constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "CTPH";
+        this.module = "Hashing";
+        this.description = "Context Triggered Piecewise Hashing, also called Fuzzy Hashing, can match inputs that have homologies. Such inputs have sequences of identical bytes in the same order, although bytes in between these sequences may be different in both content and length.<br><br>CTPH was originally based on the work of Dr. Andrew Tridgell and a spam email detector called SpamSum. This method was adapted by Jesse Kornblum and published at the DFRWS conference in 2006 in a paper 'Identifying Almost Identical Files Using Context Triggered Piecewise Hashing'.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        return ctphjs.digest(input);
+    }
+
+}
+
+export default CTPH;

src/core/operations/CartesianProduct.mjs

@@ -0,0 +1,96 @@
+/**
+ * @author d98762625 [d98762625@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Set cartesian product operation
+ */
+class CartesianProduct extends Operation {
+
+    /**
+     * Cartesian Product constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Cartesian Product";
+        this.module = "Default";
+        this.description = "Calculates the cartesian product of multiple sets of data, returning all possible combinations.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                name: "Sample delimiter",
+                type: "binaryString",
+                value: "\\n\\n"
+            },
+            {
+                name: "Item delimiter",
+                type: "binaryString",
+                value: ","
+            },
+        ];
+    }
+
+    /**
+     * Validate input length
+     *
+     * @param {Object[]} sets
+     * @throws {OperationError} if fewer than 2 sets
+     */
+    validateSampleNumbers(sets) {
+        if (!sets || sets.length < 2) {
+            throw new OperationError("Incorrect number of sets, perhaps you" +
+                " need to modify the sample delimiter or add more samples?");
+        }
+    }
+
+    /**
+     * Run the product operation
+     *
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {string}
+     * @throws {OperationError}
+     */
+    run(input, args) {
+        [this.sampleDelim, this.itemDelimiter] = args;
+        const sets = input.split(this.sampleDelim);
+
+        this.validateSampleNumbers(sets);
+
+        return this.runCartesianProduct(...sets.map(s => s.split(this.itemDelimiter)));
+    }
+
+    /**
+    * Return the cartesian product of the two inputted sets.
+    *
+    * @param {Object[]} a
+    * @param {Object[]} b
+    * @param {Object[]} c
+    * @returns {string}
+    */
+    runCartesianProduct(a, b, ...c) {
+        /**
+         * https://stackoverflow.com/a/43053803/7200497
+         * @returns {Object[]}
+         */
+        const f = (a, b) => [].concat(...a.map(d => b.map(e => [].concat(d, e))));
+        /**
+         * https://stackoverflow.com/a/43053803/7200497
+         * @returns {Object[][]}
+         */
+        const cartesian = (a, b, ...c) => (b ? cartesian(f(a, b), ...c) : a);
+
+        return cartesian(a, b, ...c)
+            .map(set => `(${set.join(",")})`)
+            .join(this.itemDelimiter);
+    }
+}
+
+export default CartesianProduct;

src/core/operations/ChiSquare.mjs

@@ -0,0 +1,53 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2017
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Chi Square operation
+ */
+class ChiSquare extends Operation {
+
+    /**
+     * ChiSquare constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Chi Square";
+        this.module = "Default";
+        this.description = "Calculates the Chi Square distribution of values.";
+        this.inputType = "ArrayBuffer";
+        this.outputType = "number";
+        this.args = [];
+    }
+
+    /**
+     * @param {ArrayBuffer} input
+     * @param {Object[]} args
+     * @returns {number}
+     */
+    run(input, args) {
+        const data = new Uint8Array(input);
+        const distArray = new Array(256).fill(0);
+        let total = 0;
+
+        for (let i = 0; i < data.length; i++) {
+            distArray[data[i]]++;
+        }
+
+        for (let i = 0; i < distArray.length; i++) {
+            if (distArray[i] > 0) {
+                total += Math.pow(distArray[i] - data.length / 256, 2) / (data.length / 256);
+            }
+        }
+
+        return total;
+    }
+
+}
+
+export default ChiSquare;

src/core/operations/Cipher.js

@@ -1,1033 +0,0 @@
-import Utils from "../Utils.js";
-import CryptoJS from "crypto-js";
-import forge from "imports-loader?jQuery=>null!node-forge/dist/forge.min.js";
-import {blowfish as Blowfish} from "sladex-blowfish";
-import BigNumber from "bignumber.js";
-
-
-/**
- * Cipher operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @namespace
- */
-const Cipher = {
-
-    /**
-     * @constant
-     * @default
-     */
-    IO_FORMAT1: ["Hex", "UTF8", "Latin1", "Base64"],
-    /**
-    * @constant
-    * @default
-    */
-    IO_FORMAT2: ["UTF8", "Latin1", "Hex", "Base64"],
-    /**
-    * @constant
-    * @default
-    */
-    IO_FORMAT3: ["Raw", "Hex"],
-    /**
-    * @constant
-    * @default
-    */
-    IO_FORMAT4: ["Hex", "Raw"],
-    /**
-     * @constant
-     * @default
-     */
-    AES_MODES: ["CBC", "CFB", "OFB", "CTR", "GCM", "ECB"],
-
-    /**
-     * AES Encrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runAesEnc: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if ([16, 24, 32].indexOf(key.length) < 0) {
-            return `Invalid key length: ${key.length} bytes
-
-The following algorithms will be used based on the size of the key:
-  16 bytes = AES-128
-  24 bytes = AES-192
-  32 bytes = AES-256`;
-        }
-
-        input = Utils.convertToByteString(input, inputType);
-
-        const cipher = forge.cipher.createCipher("AES-" + mode, key);
-        cipher.start({iv: iv});
-        cipher.update(forge.util.createBuffer(input));
-        cipher.finish();
-
-        if (outputType === "Hex") {
-            if (mode === "GCM") {
-                return cipher.output.toHex() + "\n\n" +
-                    "Tag: " + cipher.mode.tag.toHex();
-            }
-            return cipher.output.toHex();
-        } else {
-            if (mode === "GCM") {
-                return cipher.output.getBytes() + "\n\n" +
-                    "Tag: " + cipher.mode.tag.getBytes();
-            }
-            return cipher.output.getBytes();
-        }
-    },
-
-
-    /**
-     * AES Decrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runAesDec: function (input, args) {
-        const key = Utils.convertToByteArray(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4],
-            gcmTag = Utils.convertToByteString(args[5].string, args[5].option);
-
-        if ([16, 24, 32].indexOf(key.length) < 0) {
-            return `Invalid key length: ${key.length} bytes
-
-The following algorithms will be used based on the size of the key:
-  16 bytes = AES-128
-  24 bytes = AES-192
-  32 bytes = AES-256`;
-        }
-
-        input = Utils.convertToByteString(input, inputType);
-
-        const decipher = forge.cipher.createDecipher("AES-" + mode, key);
-        decipher.start({
-            iv: iv,
-            tag: gcmTag
-        });
-        decipher.update(forge.util.createBuffer(input));
-        const result = decipher.finish();
-
-        if (result) {
-            return outputType === "Hex" ? decipher.output.toHex() : decipher.output.getBytes();
-        } else {
-            return "Unable to decrypt input with these parameters.";
-        }
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    DES_MODES: ["CBC", "CFB", "OFB", "CTR", "ECB"],
-
-    /**
-     * DES Encrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runDesEnc: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if (key.length !== 8) {
-            return `Invalid key length: ${key.length} bytes
-
-DES uses a key length of 8 bytes (64 bits).
-Triple DES uses a key length of 24 bytes (192 bits).`;
-        }
-
-        input = Utils.convertToByteString(input, inputType);
-
-        const cipher = forge.cipher.createCipher("DES-" + mode, key);
-        cipher.start({iv: iv});
-        cipher.update(forge.util.createBuffer(input));
-        cipher.finish();
-
-        return outputType === "Hex" ? cipher.output.toHex() : cipher.output.getBytes();
-    },
-
-
-    /**
-     * DES Decrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runDesDec: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if (key.length !== 8) {
-            return `Invalid key length: ${key.length} bytes
-
-DES uses a key length of 8 bytes (64 bits).
-Triple DES uses a key length of 24 bytes (192 bits).`;
-        }
-
-        input = Utils.convertToByteString(input, inputType);
-
-        const decipher = forge.cipher.createDecipher("DES-" + mode, key);
-        decipher.start({iv: iv});
-        decipher.update(forge.util.createBuffer(input));
-        const result = decipher.finish();
-
-        if (result) {
-            return outputType === "Hex" ? decipher.output.toHex() : decipher.output.getBytes();
-        } else {
-            return "Unable to decrypt input with these parameters.";
-        }
-    },
-
-
-    /**
-     * Triple DES Encrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runTripleDesEnc: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if (key.length !== 24) {
-            return `Invalid key length: ${key.length} bytes
-
-Triple DES uses a key length of 24 bytes (192 bits).
-DES uses a key length of 8 bytes (64 bits).`;
-        }
-
-        input = Utils.convertToByteString(input, inputType);
-
-        const cipher = forge.cipher.createCipher("3DES-" + mode, key);
-        cipher.start({iv: iv});
-        cipher.update(forge.util.createBuffer(input));
-        cipher.finish();
-
-        return outputType === "Hex" ? cipher.output.toHex() : cipher.output.getBytes();
-    },
-
-
-    /**
-     * Triple DES Decrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runTripleDesDec: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if (key.length !== 24) {
-            return `Invalid key length: ${key.length} bytes
-
-Triple DES uses a key length of 24 bytes (192 bits).
-DES uses a key length of 8 bytes (64 bits).`;
-        }
-
-        input = Utils.convertToByteString(input, inputType);
-
-        const decipher = forge.cipher.createDecipher("3DES-" + mode, key);
-        decipher.start({iv: iv});
-        decipher.update(forge.util.createBuffer(input));
-        const result = decipher.finish();
-
-        if (result) {
-            return outputType === "Hex" ? decipher.output.toHex() : decipher.output.getBytes();
-        } else {
-            return "Unable to decrypt input with these parameters.";
-        }
-    },
-
-
-    /**
-     * RC2 Encrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runRc2Enc: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteString(args[1].string, args[1].option),
-            inputType = args[2],
-            outputType = args[3],
-            cipher = forge.rc2.createEncryptionCipher(key);
-
-        input = Utils.convertToByteString(input, inputType);
-
-        cipher.start(iv || null);
-        cipher.update(forge.util.createBuffer(input));
-        cipher.finish();
-
-        return outputType === "Hex" ? cipher.output.toHex() : cipher.output.getBytes();
-    },
-
-
-    /**
-     * RC2 Decrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runRc2Dec: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteString(args[1].string, args[1].option),
-            inputType = args[2],
-            outputType = args[3],
-            decipher = forge.rc2.createDecryptionCipher(key);
-
-        input = Utils.convertToByteString(input, inputType);
-
-        decipher.start(iv || null);
-        decipher.update(forge.util.createBuffer(input));
-        decipher.finish();
-
-        return outputType === "Hex" ? decipher.output.toHex() : decipher.output.getBytes();
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    BLOWFISH_MODES: ["CBC", "PCBC", "CFB", "OFB", "CTR", "ECB"],
-    /**
-     * @constant
-     * @default
-     */
-    BLOWFISH_OUTPUT_TYPES: ["Hex", "Base64", "Raw"],
-
-    /**
-     * Lookup table for Blowfish output types.
-     *
-     * @private
-     */
-    _BLOWFISH_OUTPUT_TYPE_LOOKUP: {
-        Base64: 0, Hex: 1, String: 2, Raw: 3
-    },
-    /**
-     * Lookup table for Blowfish modes.
-     *
-     * @private
-     */
-    _BLOWFISH_MODE_LOOKUP: {
-        ECB: 0, CBC: 1, PCBC: 2, CFB: 3, OFB: 4, CTR: 5
-    },
-
-    /**
-     * Blowfish Encrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runBlowfishEnc: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if (key.length === 0) return "Enter a key";
-
-        input = Utils.convertToByteString(input, inputType);
-
-        Blowfish.setIV(Utils.toBase64(iv), 0);
-
-        const enc = Blowfish.encrypt(input, key, {
-            outputType: Cipher._BLOWFISH_OUTPUT_TYPE_LOOKUP[outputType],
-            cipherMode: Cipher._BLOWFISH_MODE_LOOKUP[mode]
-        });
-
-        return outputType === "Raw" ? Utils.byteArrayToChars(enc) : enc   ;
-    },
-
-
-    /**
-     * Blowfish Decrypt operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runBlowfishDec: function (input, args) {
-        const key = Utils.convertToByteString(args[0].string, args[0].option),
-            iv = Utils.convertToByteArray(args[1].string, args[1].option),
-            mode = args[2],
-            inputType = args[3],
-            outputType = args[4];
-
-        if (key.length === 0) return "Enter a key";
-
-        input = inputType === "Raw" ? Utils.strToByteArray(input) : input;
-
-        Blowfish.setIV(Utils.toBase64(iv), 0);
-
-        const result = Blowfish.decrypt(input, key, {
-            outputType: Cipher._BLOWFISH_OUTPUT_TYPE_LOOKUP[inputType], // This actually means inputType. The library is weird.
-            cipherMode: Cipher._BLOWFISH_MODE_LOOKUP[mode]
-        });
-
-        return outputType === "Hex" ? Utils.toHexFast(Utils.strToByteArray(result)) : result;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    KDF_KEY_SIZE: 128,
-    /**
-     * @constant
-     * @default
-     */
-    KDF_ITERATIONS: 1,
-    /**
-     * @constant
-     * @default
-     */
-    HASHERS: ["SHA1", "SHA256", "SHA384", "SHA512", "MD5"],
-
-    /**
-     * Derive PBKDF2 key operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runPbkdf2: function (input, args) {
-        const passphrase = Utils.convertToByteString(args[0].string, args[0].option),
-            keySize = args[1],
-            iterations = args[2],
-            hasher = args[3],
-            salt = Utils.convertToByteString(args[4].string, args[4].option) ||
-                forge.random.getBytesSync(keySize),
-            derivedKey = forge.pkcs5.pbkdf2(passphrase, salt, iterations, keySize / 8, hasher.toLowerCase());
-
-        return forge.util.bytesToHex(derivedKey);
-    },
-
-
-    /**
-     * Derive EVP key operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runEvpkdf: function (input, args) {
-        const passphrase = Utils.convertToByteString(args[0].string, args[0].option),
-            keySize = args[1] / 32,
-            iterations = args[2],
-            hasher = args[3],
-            salt = Utils.convertToByteString(args[4].string, args[4].option),
-            key = CryptoJS.EvpKDF(passphrase, salt, {
-                keySize: keySize,
-                hasher: CryptoJS.algo[hasher],
-                iterations: iterations,
-            });
-
-        return key.toString(CryptoJS.enc.Hex);
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    RC4_KEY_FORMAT: ["UTF8", "UTF16", "UTF16LE", "UTF16BE", "Latin1", "Hex", "Base64"],
-    /**
-     * @constant
-     * @default
-     */
-    CJS_IO_FORMAT: ["Latin1", "UTF8", "UTF16", "UTF16LE", "UTF16BE", "Hex", "Base64"],
-
-
-    /**
-     * RC4 operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runRc4: function (input, args) {
-        let message = Cipher._format[args[1]].parse(input),
-            passphrase = Cipher._format[args[0].option].parse(args[0].string),
-            encrypted = CryptoJS.RC4.encrypt(message, passphrase);
-
-        return encrypted.ciphertext.toString(Cipher._format[args[2]]);
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    RC4DROP_BYTES: 768,
-
-    /**
-     * RC4 Drop operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runRc4drop: function (input, args) {
-        let message = Cipher._format[args[1]].parse(input),
-            passphrase = Cipher._format[args[0].option].parse(args[0].string),
-            drop = args[3],
-            encrypted = CryptoJS.RC4Drop.encrypt(message, passphrase, { drop: drop });
-
-        return encrypted.ciphertext.toString(Cipher._format[args[2]]);
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    PRNG_BYTES: 32,
-    /**
-     * @constant
-     * @default
-     */
-    PRNG_OUTPUT: ["Hex", "Integer", "Byte array", "Raw"],
-
-    /**
-     * Pseudo-Random Number Generator operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runPRNG: function(input, args) {
-        const numBytes = args[0],
-            outputAs = args[1];
-
-        let bytes;
-
-        if (ENVIRONMENT_IS_WORKER() && self.crypto) {
-            bytes = self.crypto.getRandomValues(new Uint8Array(numBytes));
-            bytes = Utils.arrayBufferToStr(bytes.buffer);
-        } else {
-            bytes = forge.random.getBytesSync(numBytes);
-        }
-
-        let value = new BigNumber(0),
-            i;
-
-        switch (outputAs) {
-            case "Hex":
-                return forge.util.bytesToHex(bytes);
-            case "Integer":
-                for (i = bytes.length - 1; i >= 0; i--) {
-                    value = value.times(256).plus(bytes.charCodeAt(i));
-                }
-                return value.toFixed();
-            case "Byte array":
-                return JSON.stringify(Utils.strToCharcode(bytes));
-            case "Raw":
-            default:
-                return bytes;
-        }
-    },
-
-
-    /**
-     * Vigenère Encode operation.
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runVigenereEnc: function (input, args) {
-        let alphabet = "abcdefghijklmnopqrstuvwxyz",
-            key = args[0].toLowerCase(),
-            output = "",
-            fail = 0,
-            keyIndex,
-            msgIndex,
-            chr;
-
-        if (!key) return "No key entered";
-        if (!/^[a-zA-Z]+$/.test(key)) return "The key must consist only of letters";
-
-        for (let i = 0; i < input.length; i++) {
-            if (alphabet.indexOf(input[i]) >= 0) {
-                // Get the corresponding character of key for the current letter, accounting
-                // for chars not in alphabet
-                chr = key[(i - fail) % key.length];
-                // Get the location in the vigenere square of the key char
-                keyIndex = alphabet.indexOf(chr);
-                // Get the location in the vigenere square of the message char
-                msgIndex = alphabet.indexOf(input[i]);
-                // Get the encoded letter by finding the sum of indexes modulo 26 and finding
-                // the letter corresponding to that
-                output += alphabet[(keyIndex + msgIndex) % 26];
-            } else if (alphabet.indexOf(input[i].toLowerCase()) >= 0) {
-                chr = key[(i - fail) % key.length].toLowerCase();
-                keyIndex = alphabet.indexOf(chr);
-                msgIndex = alphabet.indexOf(input[i].toLowerCase());
-                output += alphabet[(keyIndex + msgIndex) % 26].toUpperCase();
-            } else {
-                output += input[i];
-                fail++;
-            }
-        }
-
-        return output;
-    },
-
-
-    /**
-     * Vigenère Decode operation.
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runVigenereDec: function (input, args) {
-        let alphabet = "abcdefghijklmnopqrstuvwxyz",
-            key = args[0].toLowerCase(),
-            output = "",
-            fail = 0,
-            keyIndex,
-            msgIndex,
-            chr;
-
-        if (!key) return "No key entered";
-        if (!/^[a-zA-Z]+$/.test(key)) return "The key must consist only of letters";
-
-        for (let i = 0; i < input.length; i++) {
-            if (alphabet.indexOf(input[i]) >= 0) {
-                chr = key[(i - fail) % key.length];
-                keyIndex = alphabet.indexOf(chr);
-                msgIndex = alphabet.indexOf(input[i]);
-                // Subtract indexes from each other, add 26 just in case the value is negative,
-                // modulo to remove if neccessary
-                output += alphabet[(msgIndex - keyIndex + alphabet.length) % 26];
-            } else if (alphabet.indexOf(input[i].toLowerCase()) >= 0) {
-                chr = key[(i - fail) % key.length].toLowerCase();
-                keyIndex = alphabet.indexOf(chr);
-                msgIndex = alphabet.indexOf(input[i].toLowerCase());
-                output += alphabet[(msgIndex + alphabet.length - keyIndex) % 26].toUpperCase();
-            } else {
-                output += input[i];
-                fail++;
-            }
-        }
-
-        return output;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    AFFINE_A: 1,
-    /**
-     * @constant
-     * @default
-     */
-    AFFINE_B: 0,
-
-    /**
-     * Affine Cipher Encode operation.
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runAffineEnc: function (input, args) {
-        let alphabet = "abcdefghijklmnopqrstuvwxyz",
-            a = args[0],
-            b = args[1],
-            output = "";
-
-        if (!/^\+?(0|[1-9]\d*)$/.test(a) || !/^\+?(0|[1-9]\d*)$/.test(b)) {
-            return "The values of a and b can only be integers.";
-        }
-
-        for (let i = 0; i < input.length; i++) {
-            if (alphabet.indexOf(input[i]) >= 0) {
-                // Uses the affine function ax+b % m = y (where m is length of the alphabet)
-                output += alphabet[((a * alphabet.indexOf(input[i])) + b) % 26];
-            } else if (alphabet.indexOf(input[i].toLowerCase()) >= 0) {
-                // Same as above, accounting for uppercase
-                output += alphabet[((a * alphabet.indexOf(input[i].toLowerCase())) + b) % 26].toUpperCase();
-            } else {
-                // Non-alphabetic characters
-                output += input[i];
-            }
-        }
-        return output;
-    },
-
-
-    /**
-     * Affine Cipher Decode operation.
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runAffineDec: function (input, args) {
-        let alphabet = "abcdefghijklmnopqrstuvwxyz",
-            a = args[0],
-            b = args[1],
-            output = "",
-            aModInv;
-
-        if (!/^\+?(0|[1-9]\d*)$/.test(a) || !/^\+?(0|[1-9]\d*)$/.test(b)) {
-            return "The values of a and b can only be integers.";
-        }
-
-        if (Utils.gcd(a, 26) !== 1) {
-            return "The value of a must be coprime to 26.";
-        }
-
-        // Calculates modular inverse of a
-        aModInv = Utils.modInv(a, 26);
-
-        for (let i = 0; i < input.length; i++) {
-            if (alphabet.indexOf(input[i]) >= 0) {
-                // Uses the affine decode function (y-b * A') % m = x (where m is length of the alphabet and A' is modular inverse)
-                output += alphabet[Utils.mod((alphabet.indexOf(input[i]) - b) * aModInv, 26)];
-            } else if (alphabet.indexOf(input[i].toLowerCase()) >= 0) {
-                // Same as above, accounting for uppercase
-                output += alphabet[Utils.mod((alphabet.indexOf(input[i].toLowerCase()) - b) * aModInv, 26)].toUpperCase();
-            } else {
-                // Non-alphabetic characters
-                output += input[i];
-            }
-        }
-        return output;
-    },
-
-
-    /**
-     * Atbash Cipher Encode operation.
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runAtbash: function (input, args) {
-        return Cipher.runAffineEnc(input, [25, 25]);
-    },
-
-
-    /**
-     * Generates a polybius square for the given keyword
-     *
-     * @private
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} keyword - Must be upper case
-     * @returns {string}
-     */
-    _genPolybiusSquare: function (keyword) {
-        const alpha = "ABCDEFGHIKLMNOPQRSTUVWXYZ";
-        const polArray = `${keyword}${alpha}`.split("").unique();
-        let polybius = [];
-
-        for (let i = 0; i < 5; i++) {
-            polybius[i] = polArray.slice(i*5, i*5 + 5);
-        }
-
-        return polybius;
-    },
-
-    /**
-     * Bifid Cipher Encode operation
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runBifidEnc: function (input, args) {
-        const keywordStr = args[0].toUpperCase().replace("J", "I"),
-            keyword = keywordStr.split("").unique(),
-            alpha = "ABCDEFGHIKLMNOPQRSTUVWXYZ";
-
-        let output = "",
-            xCo = [],
-            yCo = [],
-            structure = [],
-            count = 0;
-
-        if (keyword.length > 25)
-            return "The alphabet keyword must be less than 25 characters.";
-
-        if (!/^[a-zA-Z]+$/.test(keywordStr) && keyword.length > 0)
-            return "The key must consist only of letters";
-
-        const polybius = Cipher._genPolybiusSquare(keywordStr);
-
-        input.replace("J", "I").split("").forEach(letter => {
-            let alpInd = alpha.split("").indexOf(letter.toLocaleUpperCase()) >= 0,
-                polInd;
-
-            if (alpInd) {
-                for (let i = 0; i < 5; i++) {
-                    polInd = polybius[i].indexOf(letter.toLocaleUpperCase());
-                    if (polInd >= 0) {
-                        xCo.push(polInd);
-                        yCo.push(i);
-                    }
-                }
-
-                if (alpha.split("").indexOf(letter) >= 0) {
-                    structure.push(true);
-                } else if (alpInd) {
-                    structure.push(false);
-                }
-            } else {
-                structure.push(letter);
-            }
-        });
-
-        const trans = `${yCo.join("")}${xCo.join("")}`;
-
-        structure.forEach(pos => {
-            if (typeof pos === "boolean") {
-                let coords = trans.substr(2*count, 2).split("");
-
-                output += pos ?
-                    polybius[coords[0]][coords[1]] :
-                    polybius[coords[0]][coords[1]].toLocaleLowerCase();
-                count++;
-            } else {
-                output += pos;
-            }
-        });
-
-        return output;
-    },
-
-    /**
-     * Bifid Cipher Decode operation
-     *
-     * @author Matt C [matt@artemisbot.uk]
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runBifidDec: function (input, args) {
-        const keywordStr = args[0].toUpperCase().replace("J", "I"),
-            keyword = keywordStr.split("").unique(),
-            alpha = "ABCDEFGHIKLMNOPQRSTUVWXYZ";
-
-        let output = "",
-            structure = [],
-            count = 0,
-            trans = "";
-
-        if (keyword.length > 25)
-            return "The alphabet keyword must be less than 25 characters.";
-
-        if (!/^[a-zA-Z]+$/.test(keywordStr) && keyword.length > 0)
-            return "The key must consist only of letters";
-
-        const polybius = Cipher._genPolybiusSquare(keywordStr);
-
-        input.replace("J", "I").split("").forEach((letter) => {
-            let alpInd = alpha.split("").indexOf(letter.toLocaleUpperCase()) >= 0,
-                polInd;
-
-            if (alpInd) {
-                for (let i = 0; i < 5; i++) {
-                    polInd = polybius[i].indexOf(letter.toLocaleUpperCase());
-                    if (polInd >= 0) {
-                        trans += `${i}${polInd}`;
-                    }
-                }
-
-                if (alpha.split("").indexOf(letter) >= 0) {
-                    structure.push(true);
-                } else if (alpInd) {
-                    structure.push(false);
-                }
-            } else {
-                structure.push(letter);
-            }
-        });
-
-        structure.forEach(pos => {
-            if (typeof pos === "boolean") {
-                let coords = [trans[count], trans[count+trans.length/2]];
-
-                output += pos ?
-                    polybius[coords[0]][coords[1]] :
-                    polybius[coords[0]][coords[1]].toLocaleLowerCase();
-                count++;
-            } else {
-                output += pos;
-            }
-        });
-
-        return output;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    SUBS_PLAINTEXT: "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
-    /**
-     * @constant
-     * @default
-     */
-    SUBS_CIPHERTEXT: "XYZABCDEFGHIJKLMNOPQRSTUVW",
-
-    /**
-     * Substitute operation.
-     *
-     * @param {string} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runSubstitute: function (input, args) {
-        let plaintext = Utils.expandAlphRange(args[0]).join(""),
-            ciphertext = Utils.expandAlphRange(args[1]).join(""),
-            output = "",
-            index = -1;
-
-        if (plaintext.length !== ciphertext.length) {
-            output = "Warning: Plaintext and Ciphertext lengths differ\n\n";
-        }
-
-        for (let i = 0; i < input.length; i++) {
-            index = plaintext.indexOf(input[i]);
-            output += index > -1 && index < ciphertext.length ? ciphertext[index] : input[i];
-        }
-
-        return output;
-    },
-
-
-    /**
-     * A mapping of string formats to their classes in the CryptoJS library.
-     *
-     * @private
-     * @constant
-     */
-    _format: {
-        "Hex":     CryptoJS.enc.Hex,
-        "Base64":  CryptoJS.enc.Base64,
-        "UTF8":    CryptoJS.enc.Utf8,
-        "UTF16":   CryptoJS.enc.Utf16,
-        "UTF16LE": CryptoJS.enc.Utf16LE,
-        "UTF16BE": CryptoJS.enc.Utf16BE,
-        "Latin1":  CryptoJS.enc.Latin1,
-    },
-
-};
-
-export default Cipher;
-
-
-/**
- * Overwriting the CryptoJS OpenSSL key derivation function so that it is possible to not pass a
- * salt in.
-
- * @param {string} password - The password to derive from.
- * @param {number} keySize - The size in words of the key to generate.
- * @param {number} ivSize - The size in words of the IV to generate.
- * @param {WordArray|string} salt (Optional) A 64-bit salt to use. If omitted, a salt will be
- *                 generated randomly. If set to false, no salt will be added.
- *
- * @returns {CipherParams} A cipher params object with the key, IV, and salt.
- *
- * @static
- *
- * @example
- * // Randomly generates a salt
- * var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32);
- * // Uses the salt 'saltsalt'
- * var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32, 'saltsalt');
- * // Does not use a salt
- * var derivedParams = CryptoJS.kdf.OpenSSL.execute('Password', 256/32, 128/32, false);
- */
-CryptoJS.kdf.OpenSSL.execute = function (password, keySize, ivSize, salt) {
-    // Generate random salt if no salt specified and not set to false
-    // This line changed from `if (!salt) {` to the following
-    if (salt === undefined || salt === null) {
-        salt = CryptoJS.lib.WordArray.random(64/8);
-    }
-
-    // Derive key and IV
-    const key = CryptoJS.algo.EvpKDF.create({ keySize: keySize + ivSize }).compute(password, salt);
-
-    // Separate key and IV
-    const iv = CryptoJS.lib.WordArray.create(key.words.slice(keySize), ivSize * 4);
-    key.sigBytes = keySize * 4;
-
-    // Return params
-    return CryptoJS.lib.CipherParams.create({ key: key, iv: iv, salt: salt });
-};
-
-
-/**
- * Override for the CryptoJS Hex encoding parser to remove whitespace before attempting to parse
- * the hex string.
- *
- * @param {string} hexStr
- * @returns {CryptoJS.lib.WordArray}
- */
-CryptoJS.enc.Hex.parse = function (hexStr) {
-    // Remove whitespace
-    hexStr = hexStr.replace(/\s/g, "");
-
-    // Shortcut
-    const hexStrLength = hexStr.length;
-
-    // Convert
-    const words = [];
-    for (let i = 0; i < hexStrLength; i += 2) {
-        words[i >>> 3] |= parseInt(hexStr.substr(i, 2), 16) << (24 - (i % 8) * 4);
-    }
-
-    return new CryptoJS.lib.WordArray.init(words, hexStrLength / 2);
-};

src/core/operations/Comment.mjs

@@ -0,0 +1,48 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Comment operation
+ */
+class Comment extends Operation {
+
+    /**
+     * Comment constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Comment";
+        this.flowControl = true;
+        this.module = "Default";
+        this.description = "Provides a place to write comments within the flow of the recipe. This operation has no computational effect.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "",
+                "type": "text",
+                "value": ""
+            }
+        ];
+    }
+
+    /**
+     * @param {Object} state - The current state of the recipe.
+     * @param {number} state.progress - The current position in the recipe.
+     * @param {Dish} state.dish - The Dish being operated on.
+     * @param {Operation[]} state.opList - The list of operations in the recipe.
+     * @returns {Object} The updated state of the recipe.
+     */
+    run(state) {
+        return state;
+    }
+
+}
+
+export default Comment;

src/core/operations/CompareCTPHHashes.mjs

@@ -0,0 +1,51 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import {HASH_DELIM_OPTIONS} from "../lib/Delim";
+import ctphjs from "ctph.js";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Compare CTPH hashes operation
+ */
+class CompareCTPHHashes extends Operation {
+
+    /**
+     * CompareCTPHHashes constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Compare CTPH hashes";
+        this.module = "Hashing";
+        this.description = "Compares two Context Triggered Piecewise Hashing (CTPH) fuzzy hashes to determine the similarity between them on a scale of 0 to 100.";
+        this.inputType = "string";
+        this.outputType = "Number";
+        this.args = [
+            {
+                "name": "Delimiter",
+                "type": "option",
+                "value": HASH_DELIM_OPTIONS
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {Number}
+     */
+    run(input, args) {
+        const samples = input.split(Utils.charRep(args[0]));
+        if (samples.length !== 2) throw new OperationError("Incorrect number of samples.");
+        return ctphjs.similarity(samples[0], samples[1]);
+    }
+
+}
+
+export default CompareCTPHHashes;

src/core/operations/CompareSSDEEPHashes.mjs

@@ -0,0 +1,51 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Utils from "../Utils";
+import {HASH_DELIM_OPTIONS} from "../lib/Delim";
+import ssdeepjs from "ssdeep.js";
+import OperationError from "../errors/OperationError";
+
+/**
+ * Compare SSDEEP hashes operation
+ */
+class CompareSSDEEPHashes extends Operation {
+
+    /**
+     * CompareSSDEEPHashes constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Compare SSDEEP hashes";
+        this.module = "Hashing";
+        this.description = "Compares two SSDEEP fuzzy hashes to determine the similarity between them on a scale of 0 to 100.";
+        this.inputType = "string";
+        this.outputType = "Number";
+        this.args = [
+            {
+                "name": "Delimiter",
+                "type": "option",
+                "value": HASH_DELIM_OPTIONS
+            }
+        ];
+    }
+
+    /**
+     * @param {string} input
+     * @param {Object[]} args
+     * @returns {Number}
+     */
+    run(input, args) {
+        const samples = input.split(Utils.charRep(args[0]));
+        if (samples.length !== 2) throw new OperationError("Incorrect number of samples.");
+        return ssdeepjs.similarity(samples[0], samples[1]);
+    }
+
+}
+
+export default CompareSSDEEPHashes;

src/core/operations/Compress.js

@@ -1,578 +0,0 @@
-import Utils from "../Utils.js";
-import rawdeflate from "zlibjs/bin/rawdeflate.min";
-import rawinflate from "zlibjs/bin/rawinflate.min";
-import zlibAndGzip from "zlibjs/bin/zlib_and_gzip.min";
-import zip from "zlibjs/bin/zip.min";
-import unzip from "zlibjs/bin/unzip.min";
-import bzip2 from "exports-loader?bzip2!../lib/bzip2.js";
-
-const Zlib = {
-    RawDeflate: rawdeflate.Zlib.RawDeflate,
-    RawInflate: rawinflate.Zlib.RawInflate,
-    Deflate:    zlibAndGzip.Zlib.Deflate,
-    Inflate:    zlibAndGzip.Zlib.Inflate,
-    Gzip:       zlibAndGzip.Zlib.Gzip,
-    Gunzip:     zlibAndGzip.Zlib.Gunzip,
-    Zip:        zip.Zlib.Zip,
-    Unzip:      unzip.Zlib.Unzip,
-};
-
-
-/**
- * Compression operations.
- *
- * @author n1474335 [n1474335@gmail.com]
- * @copyright Crown Copyright 2016
- * @license Apache-2.0
- *
- * @namespace
- */
-const Compress = {
-
-    /**
-     * @constant
-     * @default
-     */
-    COMPRESSION_TYPE: ["Dynamic Huffman Coding", "Fixed Huffman Coding", "None (Store)"],
-    /**
-     * @constant
-     * @default
-     */
-    INFLATE_BUFFER_TYPE: ["Adaptive", "Block"],
-    /**
-     * @constant
-     * @default
-     */
-    COMPRESSION_METHOD: ["Deflate", "None (Store)"],
-    /**
-     * @constant
-     * @default
-     */
-    OS: ["MSDOS", "Unix", "Macintosh"],
-    /**
-     * @constant
-     * @default
-     */
-    RAW_COMPRESSION_TYPE_LOOKUP: {
-        "Fixed Huffman Coding":   Zlib.RawDeflate.CompressionType.FIXED,
-        "Dynamic Huffman Coding": Zlib.RawDeflate.CompressionType.DYNAMIC,
-        "None (Store)":           Zlib.RawDeflate.CompressionType.NONE,
-    },
-
-    /**
-     * Raw Deflate operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runRawDeflate: function(input, args) {
-        const deflate = new Zlib.RawDeflate(input, {
-            compressionType: Compress.RAW_COMPRESSION_TYPE_LOOKUP[args[0]]
-        });
-        return Array.prototype.slice.call(deflate.compress());
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    INFLATE_INDEX: 0,
-    /**
-     * @constant
-     * @default
-     */
-    INFLATE_BUFFER_SIZE: 0,
-    /**
-     * @constant
-     * @default
-     */
-    INFLATE_RESIZE: false,
-    /**
-     * @constant
-     * @default
-     */
-    INFLATE_VERIFY: false,
-    /**
-     * @constant
-     * @default
-     */
-    RAW_BUFFER_TYPE_LOOKUP: {
-        "Adaptive": Zlib.RawInflate.BufferType.ADAPTIVE,
-        "Block":    Zlib.RawInflate.BufferType.BLOCK,
-    },
-
-    /**
-     * Raw Inflate operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runRawInflate: function(input, args) {
-        // Deal with character encoding issues
-        input = Utils.strToByteArray(Utils.byteArrayToUtf8(input));
-        let inflate = new Zlib.RawInflate(input, {
-                index: args[0],
-                bufferSize: args[1],
-                bufferType: Compress.RAW_BUFFER_TYPE_LOOKUP[args[2]],
-                resize: args[3],
-                verify: args[4]
-            }),
-            result = Array.prototype.slice.call(inflate.decompress());
-
-        // Raw Inflate somethimes messes up and returns nonsense like this:
-        // ]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]....]...
-        // e.g. Input data of [8b, 1d, dc, 44]
-        // Look for the first two square brackets:
-        if (result.length > 158 && result[0] === 93 && result[5] === 93) {
-            // If the first two square brackets are there, check that the others
-            // are also there. If they are, throw an error. If not, continue.
-            let valid = false;
-            for (let i = 0; i < 155; i += 5) {
-                if (result[i] !== 93) {
-                    valid = true;
-                }
-            }
-
-            if (!valid) {
-                throw "Error: Unable to inflate data";
-            }
-        }
-        // Trust me, this is the easiest way...
-        return result;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    ZLIB_COMPRESSION_TYPE_LOOKUP: {
-        "Fixed Huffman Coding":   Zlib.Deflate.CompressionType.FIXED,
-        "Dynamic Huffman Coding": Zlib.Deflate.CompressionType.DYNAMIC,
-        "None (Store)":           Zlib.Deflate.CompressionType.NONE,
-    },
-
-    /**
-     * Zlib Deflate operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runZlibDeflate: function(input, args) {
-        const deflate = new Zlib.Deflate(input, {
-            compressionType: Compress.ZLIB_COMPRESSION_TYPE_LOOKUP[args[0]]
-        });
-        return Array.prototype.slice.call(deflate.compress());
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    ZLIB_BUFFER_TYPE_LOOKUP: {
-        "Adaptive": Zlib.Inflate.BufferType.ADAPTIVE,
-        "Block":    Zlib.Inflate.BufferType.BLOCK,
-    },
-
-    /**
-     * Zlib Inflate operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runZlibInflate: function(input, args) {
-        // Deal with character encoding issues
-        input = Utils.strToByteArray(Utils.byteArrayToUtf8(input));
-        const inflate = new Zlib.Inflate(input, {
-            index: args[0],
-            bufferSize: args[1],
-            bufferType: Compress.ZLIB_BUFFER_TYPE_LOOKUP[args[2]],
-            resize: args[3],
-            verify: args[4]
-        });
-        return Array.prototype.slice.call(inflate.decompress());
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    GZIP_CHECKSUM: false,
-
-    /**
-     * Gzip operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runGzip: function(input, args) {
-        let filename = args[1],
-            comment = args[2],
-            options = {
-                deflateOptions: {
-                    compressionType: Compress.ZLIB_COMPRESSION_TYPE_LOOKUP[args[0]]
-                },
-                flags: {
-                    fhcrc: args[3]
-                }
-            };
-
-        if (filename.length) {
-            options.flags.fname = true;
-            options.filename = filename;
-        }
-        if (comment.length) {
-            options.flags.fcommenct = true;
-            options.comment = comment;
-        }
-
-        const gzip = new Zlib.Gzip(input, options);
-        return Array.prototype.slice.call(gzip.compress());
-    },
-
-
-    /**
-     * Gunzip operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runGunzip: function(input, args) {
-        // Deal with character encoding issues
-        input = Utils.strToByteArray(Utils.byteArrayToUtf8(input));
-        const gunzip = new Zlib.Gunzip(input);
-        return Array.prototype.slice.call(gunzip.decompress());
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    PKZIP_FILENAME: "file.txt",
-    /**
-     * @constant
-     * @default
-     */
-    ZIP_COMPRESSION_METHOD_LOOKUP: {
-        "Deflate":      Zlib.Zip.CompressionMethod.DEFLATE,
-        "None (Store)": Zlib.Zip.CompressionMethod.STORE
-    },
-    /**
-     * @constant
-     * @default
-     */
-    ZIP_OS_LOOKUP: {
-        "MSDOS":     Zlib.Zip.OperatingSystem.MSDOS,
-        "Unix":      Zlib.Zip.OperatingSystem.UNIX,
-        "Macintosh": Zlib.Zip.OperatingSystem.MACINTOSH
-    },
-
-    /**
-     * Zip operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runPkzip: function(input, args) {
-        let password = Utils.strToByteArray(args[2]),
-            options = {
-                filename: Utils.strToByteArray(args[0]),
-                comment: Utils.strToByteArray(args[1]),
-                compressionMethod: Compress.ZIP_COMPRESSION_METHOD_LOOKUP[args[3]],
-                os: Compress.ZIP_OS_LOOKUP[args[4]],
-                deflateOption: {
-                    compressionType: Compress.ZLIB_COMPRESSION_TYPE_LOOKUP[args[5]]
-                },
-            },
-            zip = new Zlib.Zip();
-
-        if (password.length)
-            zip.setPassword(password);
-        zip.addFile(input, options);
-        return Array.prototype.slice.call(zip.compress());
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    PKUNZIP_VERIFY: false,
-
-    /**
-     * Unzip operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runPkunzip: function(input, args) {
-        let options = {
-                password: Utils.strToByteArray(args[0]),
-                verify: args[1]
-            },
-            unzip = new Zlib.Unzip(input, options),
-            filenames = unzip.getFilenames(),
-            files = [];
-
-        filenames.forEach(function(fileName) {
-            const bytes = unzip.decompress(fileName);
-            const contents = Utils.byteArrayToUtf8(bytes);
-
-            const file = {
-                fileName: fileName,
-                size: contents.length,
-            };
-
-            const isDir = contents.length === 0 && fileName.endsWith("/");
-            if (!isDir) {
-                file.bytes = bytes;
-                file.contents = contents;
-            }
-
-            files.push(file);
-        });
-
-        return Utils.displayFilesAsHTML(files);
-    },
-
-
-    /**
-     * Bzip2 Decompress operation.
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {string}
-     */
-    runBzip2Decompress: function(input, args) {
-        let compressed = new Uint8Array(input),
-            bzip2Reader,
-            plain = "";
-
-        bzip2Reader = bzip2.array(compressed);
-        plain = bzip2.simple(bzip2Reader);
-        return plain;
-    },
-
-
-    /**
-     * @constant
-     * @default
-     */
-    TAR_FILENAME: "file.txt",
-
-
-    /**
-     * Tar pack operation.
-     *
-     * @author tlwr [toby@toby.codes]
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {byteArray}
-     */
-    runTar: function(input, args) {
-        const Tarball = function() {
-            this.bytes = new Array(512);
-            this.position = 0;
-        };
-
-        Tarball.prototype.addEmptyBlock = function() {
-            const filler = new Array(512);
-            filler.fill(0);
-            this.bytes = this.bytes.concat(filler);
-        };
-
-        Tarball.prototype.writeBytes = function(bytes) {
-            const self = this;
-
-            if (this.position + bytes.length > this.bytes.length) {
-                this.addEmptyBlock();
-            }
-
-            Array.prototype.forEach.call(bytes, function(b, i) {
-                if (typeof b.charCodeAt !== "undefined") {
-                    b = b.charCodeAt();
-                }
-
-                self.bytes[self.position] = b;
-                self.position += 1;
-            });
-        };
-
-        Tarball.prototype.writeEndBlocks = function() {
-            const numEmptyBlocks = 2;
-            for (let i = 0; i < numEmptyBlocks; i++) {
-                this.addEmptyBlock();
-            }
-        };
-
-        const fileSize = input.length.toString(8).padStart(11, "0");
-        const currentUnixTimestamp = Math.floor(Date.now() / 1000);
-        const lastModTime = currentUnixTimestamp.toString(8).padStart(11, "0");
-
-        const file = {
-            fileName: Utils.padBytesRight(args[0], 100),
-            fileMode: Utils.padBytesRight("0000664", 8),
-            ownerUID: Utils.padBytesRight("0", 8),
-            ownerGID: Utils.padBytesRight("0", 8),
-            size: Utils.padBytesRight(fileSize, 12),
-            lastModTime: Utils.padBytesRight(lastModTime, 12),
-            checksum: "        ",
-            type: "0",
-            linkedFileName: Utils.padBytesRight("", 100),
-            USTARFormat: Utils.padBytesRight("ustar", 6),
-            version: "00",
-            ownerUserName: Utils.padBytesRight("", 32),
-            ownerGroupName: Utils.padBytesRight("", 32),
-            deviceMajor: Utils.padBytesRight("", 8),
-            deviceMinor: Utils.padBytesRight("", 8),
-            fileNamePrefix: Utils.padBytesRight("", 155),
-        };
-
-        let checksum = 0;
-        for (const key in file) {
-            const bytes = file[key];
-            Array.prototype.forEach.call(bytes, function(b) {
-                if (typeof b.charCodeAt !== "undefined") {
-                    checksum += b.charCodeAt();
-                } else {
-                    checksum += b;
-                }
-            });
-        }
-        checksum = Utils.padBytesRight(checksum.toString(8).padStart(7, "0"), 8);
-        file.checksum = checksum;
-
-        const tarball = new Tarball();
-        tarball.writeBytes(file.fileName);
-        tarball.writeBytes(file.fileMode);
-        tarball.writeBytes(file.ownerUID);
-        tarball.writeBytes(file.ownerGID);
-        tarball.writeBytes(file.size);
-        tarball.writeBytes(file.lastModTime);
-        tarball.writeBytes(file.checksum);
-        tarball.writeBytes(file.type);
-        tarball.writeBytes(file.linkedFileName);
-        tarball.writeBytes(file.USTARFormat);
-        tarball.writeBytes(file.version);
-        tarball.writeBytes(file.ownerUserName);
-        tarball.writeBytes(file.ownerGroupName);
-        tarball.writeBytes(file.deviceMajor);
-        tarball.writeBytes(file.deviceMinor);
-        tarball.writeBytes(file.fileNamePrefix);
-        tarball.writeBytes(Utils.padBytesRight("", 12));
-        tarball.writeBytes(input);
-        tarball.writeEndBlocks();
-
-        return tarball.bytes;
-    },
-
-
-    /**
-     * Untar unpack operation.
-     *
-     * @author tlwr [toby@toby.codes]
-     *
-     * @param {byteArray} input
-     * @param {Object[]} args
-     * @returns {html}
-     */
-    runUntar: function(input, args) {
-        const Stream = function(input) {
-            this.bytes = input;
-            this.position = 0;
-        };
-
-        Stream.prototype.getBytes = function(bytesToGet) {
-            const newPosition = this.position + bytesToGet;
-            const bytes = this.bytes.slice(this.position, newPosition);
-            this.position = newPosition;
-            return bytes;
-        };
-
-        Stream.prototype.readString = function(numBytes) {
-            let result = "";
-            for (let i = this.position; i < this.position + numBytes; i++) {
-                const currentByte = this.bytes[i];
-                if (currentByte === 0) break;
-                result += String.fromCharCode(currentByte);
-            }
-            this.position += numBytes;
-            return result;
-        };
-
-        Stream.prototype.readInt = function(numBytes, base) {
-            const string = this.readString(numBytes);
-            return parseInt(string, base);
-        };
-
-        Stream.prototype.hasMore = function() {
-            return this.position < this.bytes.length;
-        };
-
-        let stream = new Stream(input),
-            files = [];
-
-        while (stream.hasMore()) {
-            const dataPosition = stream.position + 512;
-
-            const file = {
-                fileName: stream.readString(100),
-                fileMode: stream.readString(8),
-                ownerUID: stream.readString(8),
-                ownerGID: stream.readString(8),
-                size: parseInt(stream.readString(12), 8), // Octal
-                lastModTime: new Date(1000 * stream.readInt(12, 8)), // Octal
-                checksum: stream.readString(8),
-                type: stream.readString(1),
-                linkedFileName: stream.readString(100),
-                USTARFormat: stream.readString(6).indexOf("ustar") >= 0,
-            };
-
-            if (file.USTARFormat) {
-                file.version = stream.readString(2);
-                file.ownerUserName = stream.readString(32);
-                file.ownerGroupName = stream.readString(32);
-                file.deviceMajor = stream.readString(8);
-                file.deviceMinor = stream.readString(8);
-                file.filenamePrefix = stream.readString(155);
-            }
-
-            stream.position = dataPosition;
-
-            if (file.type === "0") {
-                // File
-                files.push(file);
-                let endPosition = stream.position + file.size;
-                if (file.size % 512 !== 0) {
-                    endPosition += 512 - (file.size % 512);
-                }
-
-                file.bytes = stream.getBytes(file.size);
-                file.contents = Utils.byteArrayToUtf8(file.bytes);
-                stream.position = endPosition;
-            } else if (file.type === "5") {
-                // Directory
-                files.push(file);
-            } else {
-                // Symlink or empty bytes
-            }
-        }
-
-        return Utils.displayFilesAsHTML(files);
-    },
-};
-
-export default Compress;

src/core/operations/ConditionalJump.mjs

@@ -0,0 +1,84 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2018
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import Dish from "../Dish";
+import { getLabelIndex } from "../lib/FlowControl";
+
+/**
+ * Conditional Jump operation
+ */
+class ConditionalJump extends Operation {
+
+    /**
+     * ConditionalJump constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Conditional Jump";
+        this.flowControl = true;
+        this.module = "Default";
+        this.description = "Conditionally jump forwards or backwards to the specified Label  based on whether the data matches the specified regular expression.";
+        this.inputType = "string";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Match (regex)",
+                "type": "string",
+                "value": ""
+            },
+            {
+                "name": "Invert match",
+                "type": "boolean",
+                "value": false
+            },
+            {
+                "name": "Label name",
+                "type": "shortString",
+                "value": ""
+            },
+            {
+                "name": "Maximum jumps (if jumping backwards)",
+                "type": "number",
+                "value": 10
+            }
+        ];
+    }
+
+    /**
+     * @param {Object} state - The current state of the recipe.
+     * @param {number} state.progress - The current position in the recipe.
+     * @param {Dish} state.dish - The Dish being operated on.
+     * @param {Operation[]} state.opList - The list of operations in the recipe.
+     * @param {number} state.numJumps - The number of jumps taken so far.
+     * @returns {Object} The updated state of the recipe.
+     */
+    async run(state) {
+        const ings   = state.opList[state.progress].ingValues,
+            dish     = state.dish,
+            [regexStr, invert, label, maxJumps] = ings,
+            jmpIndex = getLabelIndex(label, state);
+
+        if (state.numJumps >= maxJumps || jmpIndex === -1) {
+            return state;
+        }
+
+        if (regexStr !== "") {
+            const str = await dish.get(Dish.STRING);
+            const strMatch = str.search(regexStr) > -1;
+            if (!invert && strMatch || invert && !strMatch) {
+                state.progress = jmpIndex;
+                state.numJumps++;
+            }
+        }
+
+        return state;
+    }
+
+}
+
+export default ConditionalJump;

src/core/operations/ConvertArea.mjs

@@ -0,0 +1,112 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Convert area operation
+ */
+class ConvertArea extends Operation {
+
+    /**
+     * ConvertArea constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Convert area";
+        this.module = "Default";
+        this.description = "Converts a unit of area to another format.";
+        this.inputType = "BigNumber";
+        this.outputType = "BigNumber";
+        this.args = [
+            {
+                "name": "Input units",
+                "type": "option",
+                "value": AREA_UNITS
+            },
+            {
+                "name": "Output units",
+                "type": "option",
+                "value": AREA_UNITS
+            }
+        ];
+    }
+
+    /**
+     * @param {BigNumber} input
+     * @param {Object[]} args
+     * @returns {BigNumber}
+     */
+    run(input, args) {
+        const [inputUnits, outputUnits] = args;
+
+        input = input.times(AREA_FACTOR[inputUnits]);
+        return input.div(AREA_FACTOR[outputUnits]);
+    }
+
+}
+
+
+const AREA_UNITS = [
+    "[Metric]", "Square metre (sq m)", "Square kilometre (sq km)", "Centiare (ca)", "Deciare (da)", "Are (a)", "Decare (daa)", "Hectare (ha)", "[/Metric]",
+    "[Imperial]", "Square inch (sq in)", "Square foot (sq ft)", "Square yard (sq yd)", "Square mile (sq mi)", "Perch (sq per)", "Rood (ro)", "International acre (ac)", "[/Imperial]",
+    "[US customary units]", "US survey acre (ac)", "US survey square mile (sq mi)", "US survey township", "[/US customary units]",
+    "[Nuclear physics]", "Yoctobarn (yb)", "Zeptobarn (zb)", "Attobarn (ab)", "Femtobarn (fb)", "Picobarn (pb)", "Nanobarn (nb)", "Microbarn (μb)", "Millibarn (mb)", "Barn (b)", "Kilobarn (kb)", "Megabarn (Mb)", "Outhouse", "Shed", "Planck area", "[/Nuclear physics]",
+    "[Comparisons]", "Washington D.C.", "Isle of Wight", "Wales", "Texas", "[/Comparisons]",
+];
+
+const AREA_FACTOR = { // Multiples of a square metre
+    // Metric
+    "Square metre (sq m)":      1,
+    "Square kilometre (sq km)": 1e6,
+
+    "Centiare (ca)":            1,
+    "Deciare (da)":             10,
+    "Are (a)":                  100,
+    "Decare (daa)":             1e3,
+    "Hectare (ha)":             1e4,
+
+    // Imperial
+    "Square inch (sq in)":      0.00064516,
+    "Square foot (sq ft)":      0.09290304,
+    "Square yard (sq yd)":      0.83612736,
+    "Square mile (sq mi)":      2589988.110336,
+    "Perch (sq per)":           42.21,
+    "Rood (ro)":                1011,
+    "International acre (ac)":  4046.8564224,
+
+    // US customary units
+    "US survey acre (ac)":      4046.87261,
+    "US survey square mile (sq mi)": 2589998.470305239,
+    "US survey township":       93239944.9309886,
+
+    // Nuclear physics
+    "Yoctobarn (yb)":           1e-52,
+    "Zeptobarn (zb)":           1e-49,
+    "Attobarn (ab)":            1e-46,
+    "Femtobarn (fb)":           1e-43,
+    "Picobarn (pb)":            1e-40,
+    "Nanobarn (nb)":            1e-37,
+    "Microbarn (μb)":           1e-34,
+    "Millibarn (mb)":           1e-31,
+    "Barn (b)":                 1e-28,
+    "Kilobarn (kb)":            1e-25,
+    "Megabarn (Mb)":            1e-22,
+
+    "Planck area":              2.6e-70,
+    "Shed":                     1e-52,
+    "Outhouse":                 1e-34,
+
+    // Comparisons
+    "Washington D.C.":          176119191.502848,
+    "Isle of Wight":            380000000,
+    "Wales":                    20779000000,
+    "Texas":                    696241000000,
+};
+
+
+export default ConvertArea;

src/core/operations/ConvertDataUnits.mjs

@@ -0,0 +1,111 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+
+/**
+ * Convert data units operation
+ */
+class ConvertDataUnits extends Operation {
+
+    /**
+     * ConvertDataUnits constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "Convert data units";
+        this.module = "Default";
+        this.description = "Converts a unit of data to another format.";
+        this.inputType = "BigNumber";
+        this.outputType = "BigNumber";
+        this.args = [
+            {
+                "name": "Input units",
+                "type": "option",
+                "value": DATA_UNITS
+            },
+            {
+                "name": "Output units",
+                "type": "option",
+                "value": DATA_UNITS
+            }
+        ];
+    }
+
+    /**
+     * @param {BigNumber} input
+     * @param {Object[]} args
+     * @returns {BigNumber}
+     */
+    run(input, args) {
+        const [inputUnits, outputUnits] = args;
+
+        input = input.times(DATA_FACTOR[inputUnits]);
+        return input.div(DATA_FACTOR[outputUnits]);
+    }
+
+}
+
+const DATA_UNITS = [
+    "Bits (b)", "Nibbles", "Octets", "Bytes (B)",
+    "[Binary bits (2^n)]", "Kibibits (Kib)", "Mebibits (Mib)", "Gibibits (Gib)", "Tebibits (Tib)", "Pebibits (Pib)", "Exbibits (Eib)", "Zebibits (Zib)", "Yobibits (Yib)", "[/Binary bits (2^n)]",
+    "[Decimal bits (10^n)]", "Decabits", "Hectobits", "Kilobits (kb)", "Megabits (Mb)", "Gigabits (Gb)", "Terabits (Tb)", "Petabits (Pb)", "Exabits (Eb)", "Zettabits (Zb)", "Yottabits (Yb)", "[/Decimal bits (10^n)]",
+    "[Binary bytes (8 x 2^n)]", "Kibibytes (KiB)", "Mebibytes (MiB)", "Gibibytes (GiB)", "Tebibytes (TiB)", "Pebibytes (PiB)", "Exbibytes (EiB)", "Zebibytes (ZiB)", "Yobibytes (YiB)", "[/Binary bytes (8 x 2^n)]",
+    "[Decimal bytes (8 x 10^n)]", "Kilobytes (KB)", "Megabytes (MB)", "Gigabytes (GB)", "Terabytes (TB)", "Petabytes (PB)", "Exabytes (EB)", "Zettabytes (ZB)", "Yottabytes (YB)", "[/Decimal bytes (8 x 10^n)]"
+];
+
+const DATA_FACTOR = { // Multiples of a bit
+    "Bits (b)":        1,
+    "Nibbles":         4,
+    "Octets":          8,
+    "Bytes (B)":       8,
+
+    // Binary bits (2^n)
+    "Kibibits (Kib)":  1024,
+    "Mebibits (Mib)":  1048576,
+    "Gibibits (Gib)":  1073741824,
+    "Tebibits (Tib)":  1099511627776,
+    "Pebibits (Pib)":  1125899906842624,
+    "Exbibits (Eib)":  1152921504606846976,
+    "Zebibits (Zib)":  1180591620717411303424,
+    "Yobibits (Yib)":  1208925819614629174706176,
+
+    // Decimal bits (10^n)
+    "Decabits":        10,
+    "Hectobits":       100,
+    "Kilobits (Kb)":   1e3,
+    "Megabits (Mb)":   1e6,
+    "Gigabits (Gb)":   1e9,
+    "Terabits (Tb)":   1e12,
+    "Petabits (Pb)":   1e15,
+    "Exabits (Eb)":    1e18,
+    "Zettabits (Zb)":  1e21,
+    "Yottabits (Yb)":  1e24,
+
+    // Binary bytes (8 x 2^n)
+    "Kibibytes (KiB)": 8192,
+    "Mebibytes (MiB)": 8388608,
+    "Gibibytes (GiB)": 8589934592,
+    "Tebibytes (TiB)": 8796093022208,
+    "Pebibytes (PiB)": 9007199254740992,
+    "Exbibytes (EiB)": 9223372036854775808,
+    "Zebibytes (ZiB)": 9444732965739290427392,
+    "Yobibytes (YiB)": 9671406556917033397649408,
+
+    // Decimal bytes (8 x 10^n)
+    "Kilobytes (KB)":  8e3,
+    "Megabytes (MB)":  8e6,
+    "Gigabytes (GB)":  8e9,
+    "Terabytes (TB)":  8e12,
+    "Petabytes (PB)":  8e15,
+    "Exabytes (EB)":   8e18,
+    "Zettabytes (ZB)": 8e21,
+    "Yottabytes (YB)": 8e24,
+};
+
+
+export default ConvertDataUnits;