Cleaned up Base62 ops and updated CHANGELOG

CHANGELOG.md

@@ -1,6 +1,10 @@
 # Changelog
 All major and minor version changes will be documented in this file. Details of patch-level version changes can be found in [commit messages](https://github.com/gchq/CyberChef/commits/master).
 
+
+### [8.14.0] - 2018-12-18
+- 'To Base62' and 'From Base62' operations added [@tcode2k16] | [#443]
+
 ### [8.13.0] - 2018-12-15
 - 'A1Z26 Cipher Encode' and 'A1Z26 Cipher Decode' operations added [@jarmovanlenthe] | [#441]
 
@@ -69,6 +73,7 @@ All major and minor version changes will be documented in this file. Details of
 
 
 
+[8.14.0]: https://github.com/gchq/CyberChef/releases/tag/v8.14.0
 [8.13.0]: https://github.com/gchq/CyberChef/releases/tag/v8.13.0
 [8.12.0]: https://github.com/gchq/CyberChef/releases/tag/v8.12.0
 [8.11.0]: https://github.com/gchq/CyberChef/releases/tag/v8.11.0
@@ -101,6 +106,7 @@ All major and minor version changes will be documented in this file. Details of
 [@klaxon1]: https://github.com/klaxon1
 [@bwhitn]: https://github.com/bwhitn
 [@jarmovanlenthe]: https://github.com/jarmovanlenthe
+[@tcode2k16]: https://github.com/tcode2k16
 
 [#95]: https://github.com/gchq/CyberChef/pull/299
 [#173]: https://github.com/gchq/CyberChef/pull/173
@@ -125,3 +131,4 @@ All major and minor version changes will be documented in this file. Details of
 [#394]: https://github.com/gchq/CyberChef/pull/394
 [#428]: https://github.com/gchq/CyberChef/pull/428
 [#441]: https://github.com/gchq/CyberChef/pull/441
+[#443]: https://github.com/gchq/CyberChef/pull/443

src/core/config/Categories.json

@@ -18,8 +18,6 @@
             "From Binary",
             "To Octal",
             "From Octal",
-            "To Base62",
-            "From Base62",
             "To Base64",
             "From Base64",
             "Show Base64 offsets",
@@ -27,6 +25,8 @@
             "From Base32",
             "To Base58",
             "From Base58",
+            "To Base62",
+            "From Base62",
             "To Base85",
             "From Base85",
             "To Base",

src/core/operations/FromBase62.mjs

@@ -22,21 +22,27 @@ class FromBase62 extends Operation {
 
         this.name = "From Base62";
         this.module = "Default";
-        this.description = "decode base62 string";
-        this.infoURL = "https://en.wikipedia.org/wiki/List_of_numeral_systems";
+        this.description = "Base62 is a notation for encoding arbitrary byte data using a restricted set of symbols that can be conveniently used by humans and processed by computers. The high number base results in shorter strings than with the decimal or hexadecimal system.";
+        this.infoURL = "https://wikipedia.org/wiki/List_of_numeral_systems";
         this.inputType = "string";
-        this.outputType = "string";
-        this.args = [];
+        this.outputType = "byteArray";
+        this.args = [
+            {
+                name: "Alphabet",
+                type: "string",
+                value: "0-9A-Za-z"
+            }
+        ];
     }
 
     /**
      * @param {string} input
      * @param {Object[]} args
-     * @returns {string}
+     * @returns {byteArray}
      */
     run(input, args) {
-        if (input.length < 1) return "";
-        const ALPHABET = Utils.expandAlphRange("0-9A-Za-z").join("");
+        if (input.length < 1) return [];
+        const ALPHABET = Utils.expandAlphRange(args[0]).join("");
         const BN = BigNumber.clone({ ALPHABET });
 
         const re = new RegExp("[^" + ALPHABET.replace(/[[\]\\\-^$]/g, "\\$&") + "]", "g");
@@ -44,7 +50,7 @@ class FromBase62 extends Operation {
 
         const number = new BN(input, 62);
 
-        return Utils.byteArrayToUtf8(Utils.convertToByteArray(number.toString(16), "Hex"));
+        return Utils.convertToByteArray(number.toString(16), "Hex");
     }
 
 }

src/core/operations/ToBase62.mjs

@@ -22,11 +22,17 @@ class ToBase62 extends Operation {
 
         this.name = "To Base62";
         this.module = "Default";
-        this.description = "encode string to base62";
+        this.description = "Base62 is a notation for encoding arbitrary byte data using a restricted set of symbols that can be conveniently used by humans and processed by computers. The high number base results in shorter strings than with the decimal or hexadecimal system.";
         this.infoURL = "https://en.wikipedia.org/wiki/List_of_numeral_systems";
-        this.inputType = "string";
+        this.inputType = "byteArray";
         this.outputType = "string";
-        this.args = [];
+        this.args = [
+            {
+                name: "Alphabet",
+                type: "string",
+                value: "0-9A-Za-z"
+            }
+        ];
     }
 
     /**
@@ -37,12 +43,10 @@ class ToBase62 extends Operation {
     run(input, args) {
         if (input.length < 1) return "";
 
-        const ALPHABET = Utils.expandAlphRange("0-9A-Za-z").join("");
+        const ALPHABET = Utils.expandAlphRange(args[0]).join("");
         const BN = BigNumber.clone({ ALPHABET });
 
-        input = Utils.strToByteArray(input);
-        input = toHexFast(input);
-        input = input.toUpperCase();
+        input = toHexFast(input).toUpperCase();
 
         const number = new BN(input, 16);
 

test/tests/operations/Base62.mjs

@@ -17,7 +17,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "To Base62",
-                args: [],
+                args: ["0-9A-Za-z"],
             },
         ],
     },
@@ -28,7 +28,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "To Base62",
-                args: [],
+                args: ["0-9A-Za-z"],
             },
         ],
     },
@@ -39,7 +39,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "To Base62",
-                args: [],
+                args: ["0-9A-Za-z"],
             },
         ],
     },
@@ -50,7 +50,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "From Base62",
-                args: [],
+                args: ["0-9A-Za-z"],
             },
         ],
     },
@@ -61,7 +61,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "From Base62",
-                args: [],
+                args: ["0-9A-Za-z"],
             },
         ],
     },
@@ -72,7 +72,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "From Base62",
-                args: [],
+                args: ["0-9A-Za-z"],
             },
         ],
     }