widget static resources are now built locally

2021-07-07 00:28:32 +05:30 · 2021-07-07 00:28:32 +05:30 · bfebca6e0e
commit bfebca6e0e
parent 5d55971f19
36 changed files with 2086 additions and 168 deletions
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@ -65,15 +65,6 @@ jobs:
      - name: start smtp server
        run: docker run -d -p 1080:1080 -p 10025:1025  maildev/maildev --incoming-user admin --incoming-pass password

-      - name: Install JavaScript Dependencies
-        run: yarn install
-
-      - name: Build frontend
-        run: yarn build
-
-      - name: Run the tests
-        run: yarn test
-
      - name: Install ${{ matrix.version }}
        uses: actions-rs/toolchain@v1
        with:
@ -81,20 +72,15 @@ jobs:
          profile: minimal
          override: true

-      - name: Run migrations
-        uses: actions-rs/cargo@v1
-        with:
-          command: run
-          args: --bin tests-migrate -- --build
-        env:
-          DATABASE_URL: postgres://postgres:password@localhost:5432/postgres
+      - name: Build frontend
+        run: make frontend
+
+      - name: Run the frontend tests
+        run: make frontend-test

      - name: Generate coverage file
        if: matrix.version == '1.51.0' && (github.ref == 'refs/heads/master' || github.event_name == 'pull_request')
-        uses: actions-rs/tarpaulin@v0.1
-        with:
-          version: '0.15.0'
-          args: '-t 1200'
+        run: make xml-test-coverage
        env:
          DATABASE_URL: postgres://postgres:password@localhost:5432/postgres
          # GIT_HASH is dummy value. I guess build.rs is skipped in tarpaulin
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@ -38,14 +38,6 @@ jobs:
        image: mcaptcha/cache
        ports:
          - 6379:6379
-            #      smtp:
-            #        image: maildev/maildev
-            #        ports:
-            #          - 10025:1025
-            #          - 1080:1080
-            #        env:
-            #          MAILDEV_INCOMING_USER: admin
-            #          MAILDEV_INCOMING_PASS: password

    steps:
      - uses: actions/checkout@v2
@ -64,13 +56,7 @@ jobs:
          node-version: '14.x'

      - name: start smtp server
-        run:  docker run -d -p 1080:1080 -p 10025:1025  maildev/maildev --incoming-user admin --incoming-pass password
-
-      - name: Install JavaScript Dependencies
-        run: yarn install
-
-      - name: Build Frontend
-        run: yarn build
+        run: docker run -d -p 1080:1080 -p 10025:1025  maildev/maildev --incoming-user admin --incoming-pass password

      - name: Install ${{ matrix.version }}
        uses: actions-rs/toolchain@v1
@ -79,37 +65,27 @@ jobs:
          profile: minimal
          override: true

+      - name: Install wasm-pack
+        run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
      - name: Run migrations
-        uses: actions-rs/cargo@v1
-        with:
-          command: run
-          args: --bin tests-migrate
+        run: make migrations
        env:
          DATABASE_URL: postgres://postgres:password@localhost:5432/postgres

-      - name: check build
-        uses: actions-rs/cargo@v1
-        with:
-          command: check
-          args: --all --bins --examples --tests
+      - name: build
+        run: make
        env:
          DATABASE_URL: postgres://postgres:password@localhost:5432/postgres

-      - name: tests
-        uses: actions-rs/cargo@v1
-        timeout-minutes: 40
-        with:
-          command: test
-          args: --all --all-features --no-fail-fast
+      - name: run tests
+        run: make test
        env:
          DATABASE_URL: postgres://postgres:password@localhost:5432/postgres

      - name: generate documentation
        if: matrix.version == 'stable' && (github.repository == 'mCaptcha/mCaptcha')
-        uses: actions-rs/cargo@v1
-        with:
-          command: doc
-          args: --no-deps --workspace --all-features
+        run: make doc
        env:
          DATABASE_URL: postgres://postgres:password@localhost:5432/postgres
          GIT_HASH: 8e77345f1597e40c2e266cb4e6dee74888918a61 # dummy value
--- a/Cargo.lock
+++ b/Cargo.lock
@ -221,7 +221,7 @@ dependencies = [
 "actix-web-codegen 0.5.0-beta.3 (registry+https://github.com/rust-lang/crates.io-index)",
 "ahash",
 "bytes",
- "cfg-if",
+ "cfg-if 1.0.0",
 "cookie",
 "derive_more",
 "either",
@ -449,7 +449,7 @@ dependencies = [
 "actix-service",
 "base64",
 "bytes",
- "cfg-if",
+ "cfg-if 1.0.0",
 "cookie",
 "derive_more",
 "futures-core",
@ -579,7 +579,7 @@ dependencies = [
 [[package]]
 name = "cache-buster"
 version = "0.2.0"
-source = "git+https://github.com/realaravinth/cache-buster#d970b7031cd90649e30dc297eb5eba74832153e8"
+source = "git+https://github.com/realaravinth/cache-buster#e75ac689d2155092b90d1421ec05ec84c6917350"
 dependencies = [
 "data-encoding",
 "derive_builder",
@ -600,6 +600,12 @@ dependencies = [
 "jobserver",
 ]

+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@ -644,6 +650,16 @@ dependencies = [
 "yaml-rust",
 ]

+[[package]]
+name = "console_error_panic_hook"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8d976903543e0c48546a91908f21588a680a8c8f984df9a5d69feccb2b2a211"
+dependencies = [
+ "cfg-if 0.1.10",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "const_fn"
 version = "0.4.8"
@ -732,7 +748,7 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "81156fece84ab6a9f2afdb109ce3ae577e42b1228441eded99bd77f627953b1a"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]

 [[package]]
@ -741,7 +757,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "crossbeam-utils",
 ]

@ -751,7 +767,7 @@ version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b10ddc024425c88c2ad148c1b0fd53f4c6d38db9697c9f1588381212fa657c9"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "crossbeam-utils",
 ]

@ -761,7 +777,7 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "lazy_static",
 ]

@ -930,7 +946,7 @@ version = "0.8.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "80df024fbc5ac80f87dfef0d9f5209a252f2a497f7f42944cff24d8253cac065"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]

 [[package]]
@ -961,7 +977,7 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d34cfa13a63ae058bfa601fe9e313bbdb3746427c1459185464ce0fcf62e1e8"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "libc",
 "redox_syscall",
 "winapi",
@ -973,7 +989,7 @@ version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd3aec53de10fe96d7d8c565eb17f2c687bb5518a2ec453b5b1252964526abe0"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "crc32fast",
 "libc",
 "miniz_oxide",
@ -1136,7 +1152,7 @@ version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "libc",
 "wasi 0.9.0+wasi-snapshot-preview1",
 ]
@ -1147,7 +1163,7 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "libc",
 "wasi 0.10.2+wasi-snapshot-preview1",
 ]
@ -1348,7 +1364,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]

 [[package]]
@ -1426,7 +1442,7 @@ checksum = "6607c62aa161d23d17a9072cc5da0be67cdfc89d3afb1e8d9c842bebc2525ffe"
 dependencies = [
 "arrayvec",
 "bitflags",
- "cfg-if",
+ "cfg-if 1.0.0",
 "ryu",
 "static_assertions",
 ]
@ -1494,7 +1510,7 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]

 [[package]]
@ -1586,6 +1602,20 @@ dependencies = [
 "yaml-rust",
 ]

+[[package]]
+name = "mcaptcha-browser"
+version = "0.1.0"
+dependencies = [
+ "console_error_panic_hook",
+ "pow_sha256",
+ "serde 1.0.126",
+ "serde_derive",
+ "serde_json",
+ "wasm-bindgen",
+ "wasm-bindgen-test",
+ "wee_alloc",
+]
+
 [[package]]
 name = "md-5"
 version = "0.9.1"
@ -1603,6 +1633,12 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"

+[[package]]
+name = "memory_units"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8452105ba047068f40ff7093dd1d9da90898e63dd61736462e9cdda6a90ad3c3"
+
 [[package]]
 name = "mime"
 version = "0.3.16"
@ -1824,7 +1860,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "549430950c79ae24e6d02e0b7404534ecf311d94cc9f861e9e4020187d13d885"
 dependencies = [
 "bitflags",
- "cfg-if",
+ "cfg-if 1.0.0",
 "foreign-types",
 "libc",
 "once_cell",
@ -1867,7 +1903,7 @@ version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "instant",
 "libc",
 "redox_syscall",
@ -2408,6 +2444,12 @@ dependencies = [
 "parking_lot",
 ]

+[[package]]
+name = "scoped-tls"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
+
 [[package]]
 name = "scopeguard"
 version = "1.1.0"
@ -2543,7 +2585,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c4cfa741c5832d0ef7fab46cabed29c2aae926db0b11bb2069edd8db5e64e16"
 dependencies = [
 "block-buffer",
- "cfg-if",
+ "cfg-if 1.0.0",
 "cpufeatures",
 "digest",
 "opaque-debug",
@ -2562,7 +2604,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b362ae5752fd2137731f9fa25fd4d9058af34666ca1966fb969119cc35719f12"
 dependencies = [
 "block-buffer",
- "cfg-if",
+ "cfg-if 1.0.0",
 "cpufeatures",
 "digest",
 "opaque-debug",
@ -2854,7 +2896,7 @@ version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "libc",
 "rand 0.8.4",
 "redox_syscall",
@ -3045,7 +3087,7 @@ version = "0.1.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09adeb8c97449311ccd28a427f96fb563e7fd31aabf994189879d9da2394b89d"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "pin-project-lite",
 "tracing-core",
 ]
@ -3228,7 +3270,7 @@ version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d54ee1d4ed486f78874278e63e4069fc1ab9f6a18ca492076ffb90c5eb2997fd"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 "wasm-bindgen-macro",
 ]

@ -3247,6 +3289,18 @@ dependencies = [
 "wasm-bindgen-shared",
 ]

+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5fba7978c679d53ce2d0ac80c8c175840feb849a161664365d1287b41f2e67f1"
+dependencies = [
+ "cfg-if 1.0.0",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
 [[package]]
 name = "wasm-bindgen-macro"
 version = "0.2.74"
@ -3276,6 +3330,30 @@ version = "0.2.74"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d7cff876b8f18eed75a66cf49b65e7f967cb354a7aa16003fb55dbfd25b44b4f"

+[[package]]
+name = "wasm-bindgen-test"
+version = "0.3.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cab416a9b970464c2882ed92d55b0c33046b08e0bdc9d59b3b718acd4e1bae8"
+dependencies = [
+ "console_error_panic_hook",
+ "js-sys",
+ "scoped-tls",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "wasm-bindgen-test-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-test-macro"
+version = "0.3.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd4543fc6cf3541ef0d98bf720104cc6bd856d7eba449fd2aa365ef4fed0e782"
+dependencies = [
+ "proc-macro2",
+ "quote",
+]
+
 [[package]]
 name = "web-sys"
 version = "0.3.51"
@ -3305,6 +3383,18 @@ dependencies = [
 "webpki",
 ]

+[[package]]
+name = "wee_alloc"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbb3b5a6b2bb17cb6ad44a2e68a43e8d2722c997da10e928665c72ec6c0a0b8e"
+dependencies = [
+ "cfg-if 0.1.10",
+ "libc",
+ "memory_units",
+ "winapi",
+]
+
 [[package]]
 name = "whoami"
 version = "1.1.2"
--- a/Cargo.toml
+++ b/Cargo.toml
@ -21,6 +21,12 @@ path = "./src/main.rs"
 name = "tests-migrate"
 path = "./src/tests-migrate.rs"

+[workspace]
+members = [
+".",
+"browser",
+]
+
 [dependencies]
 #actix-web = "3.3.2"
 actix-web = "4.0.0-beta.8"
--- a/45
+++ b/45
@ -1,29 +1,45 @@
 default: frontend
 	cargo build

-run: frontend-dev
+run: frontend
 	cargo run

 dev-env:
 	cargo fetch
 	yarn install

-docs:
+doc:
+	#yarn doc
 	cargo doc --no-deps --workspace --all-features
-
-frontend-dev:
-	yarn build
+	cd browser && cargo doc --no-deps --workspace --all-features

 frontend:
+	cd browser && wasm-pack build --release
+	yarn install
 	yarn build

-test: migrate
-	cargo test
+test: migrations
+	cd browser && wasm-pack test --release --headless --chrome
+	cd browser &&  wasm-pack test --release --headless --firefox
+	cargo test --all --all-features --no-fail-fast
+	${MAKE} frontend-test

-xml-test-coverage: migrate
+frontend-test:
+	cd browser && wasm-pack test --release --headless --chrome
+	cd browser &&  wasm-pack test --release --headless --firefox
+	yarn test
+
+a:
+	echo a
+b:
+	${MAKE} a
+
+xml-test-coverage: migrations
+	cd browser && cargo tarpaulin -t 1200 --out Xml
 	cargo tarpaulin -t 1200 --out Xml

-coverage: migrate
+coverage: migrations
+	cd browser && cargo tarpaulin -t 1200 --out Html
 	cargo tarpaulin -t 1200 --out Html

 release: frontend
@ -35,13 +51,12 @@ clean:

 docker-build:
 	docker build -t mcaptcha/mcaptcha:master -t mcaptcha/mcaptcha:latest .
+
 docker-publish: docker-build
 	docker push mcaptcha/mcaptcha:master 
 	docker push mcaptcha/mcaptcha:latest

-
-
-migrate:
+migrations:
 	cargo run --bin tests-migrate

 help:
@ -50,10 +65,10 @@ help:
 	@echo  '  dev-env                 - download dependencies'
 	@echo  '  docker-build            - build docker image'
 	@echo  '  docker-publish          - build and publish docker image'
-	@echo  '  docs                    - build documentation'
-	@echo  '  frontend-dev            - build static assets in dev mode'
+	@echo  '  doc                     - build documentation'
 	@echo  '  frontend                - build static assets in prod mode'
-	@echo  '  migrate                 - run database migrations'
+	@echo  '  frontend-test           - run frontend tests'
+	@echo  '  migrations              - run database migrations'
 	@echo  '  run                     - run developer instance'
 	@echo  '  test                    - run unit and integration tests'
 	@echo  '  xml-coverage            - build test coverage in XML for upload to codecov'
--- a/browser/.appveyor.yml
+++ b/browser/.appveyor.yml
@ -0,0 +1,11 @@
+install:
+  - appveyor-retry appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
+  - if not defined RUSTFLAGS rustup-init.exe -y --default-host x86_64-pc-windows-msvc --default-toolchain nightly
+  - set PATH=%PATH%;C:\Users\appveyor\.cargo\bin
+  - rustc -V
+  - cargo -V
+
+build: false
+
+test_script:
+  - cargo test --locked
--- a/browser/.gitignore
+++ b/browser/.gitignore
@ -0,0 +1,14 @@
+/target
+tarpaulin-report.html
+.env
+.env
+cobertura.xml
+prod/
+node_modules/
+/static-assets/bundle
+./templates/**/*.js
+/static-assets/bundle/*
+src/cache_buster_data.json
+coverage
+dist/
+docs
--- a/browser/.travis.yml
+++ b/browser/.travis.yml
@ -0,0 +1,69 @@
+language: rust
+sudo: false
+
+cache: cargo
+
+matrix:
+  include:
+
+  # Builds with wasm-pack.
+  - rust: beta
+    env: RUST_BACKTRACE=1
+    addons:
+      firefox: latest
+      chrome: stable
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
+    script:
+      - cargo generate --git . --name testing
+      # Having a broken Cargo.toml (in that it has curlies in fields) anywhere
+      # in any of our parent dirs is problematic.
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - wasm-pack build
+      - wasm-pack test --chrome --firefox --headless
+
+  # Builds on nightly.
+  - rust: nightly
+    env: RUST_BACKTRACE=1
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - rustup target add wasm32-unknown-unknown
+    script:
+      - cargo generate --git . --name testing
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - cargo check
+      - cargo check --target wasm32-unknown-unknown
+      - cargo check                                 --no-default-features
+      - cargo check --target wasm32-unknown-unknown --no-default-features
+      - cargo check                                 --no-default-features --features console_error_panic_hook
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
+      - cargo check                                 --no-default-features --features "console_error_panic_hook wee_alloc"
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features "console_error_panic_hook wee_alloc"
+
+  # Builds on beta.
+  - rust: beta
+    env: RUST_BACKTRACE=1
+    before_script:
+      - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
+      - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
+      - cargo install-update -a
+      - rustup target add wasm32-unknown-unknown
+    script:
+      - cargo generate --git . --name testing
+      - mv Cargo.toml Cargo.toml.tmpl
+      - cd testing
+      - cargo check
+      - cargo check --target wasm32-unknown-unknown
+      - cargo check                                 --no-default-features
+      - cargo check --target wasm32-unknown-unknown --no-default-features
+      - cargo check                                 --no-default-features --features console_error_panic_hook
+      - cargo check --target wasm32-unknown-unknown --no-default-features --features console_error_panic_hook
+      # Note: no enabling the `wee_alloc` feature here because it requires
+      # nightly for now.
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--- a/browser/Cargo.toml
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+[package]
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+# logging them with `console.error`. This is great for development, but requires
+# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
+# code size when deploying.
+console_error_panic_hook = { version = "0.1.6", optional = true }
+
+# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
+# compared to the default allocator's ~10K. It is slower than the default
+# allocator, however.
+#
+# Unfortunately, `wee_alloc` requires nightly Rust when targeting wasm for now.
+wee_alloc = { version = "0.4.5", optional = true }
+
+serde = "1.0.114"
+serde_derive = "1.0.114"
+serde_json = "1"
+
+pow_sha256 = { version = "0.2.1", git = "https://github.com/mcaptcha/pow_sha256" }
+
+[dev-dependencies]
+wasm-bindgen-test = "0.3.13"
+
+#[profile.release]
+## Tell `rustc` to optimize for small code size.
+#opt-level = "s"
+
+[package.metadata.wasm-pack.profile.release]
+wasm-opt = false
--- a/browser/LICENSE_APACHE
+++ b/browser/LICENSE_APACHE
@ -0,0 +1,176 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
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+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
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+
+   "Work" shall mean the work of authorship, whether in Source or
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+       of the NOTICE file are for informational purposes only and
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+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied, including, without limitation, any warranties or conditions
+   of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+   PARTICULAR PURPOSE. You are solely responsible for determining the
+   appropriateness of using or redistributing the Work and assume any
+   risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
+   incidental, or consequential damages of any character arising as a
+   result of this License or out of the use or inability to use the
+   Work (including but not limited to damages for loss of goodwill,
+   work stoppage, computer failure or malfunction, or any and all
+   other commercial damages or losses), even if such Contributor
+   has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
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+   on Your own behalf and on Your sole responsibility, not on behalf
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+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
--- a/browser/LICENSE_MIT
+++ b/browser/LICENSE_MIT
@ -0,0 +1,25 @@
+Copyright (c) 2018 realaravinth <realaravinth@batsense.net>
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
--- a/browser/README.md
+++ b/browser/README.md
@ -0,0 +1,92 @@
+<div align="center">
+
+  <h1>PoW JavaScript library</h1>
+
+<strong>JavaScript library to generate PoW for mCaptcha</strong>
+
+[![0.1.0](https://img.shields.io/badge/Rust_docs-master-dea584)](https://mcaptcha.github.io/browser/rust/mcaptcha_browser/index.html)
+[![0.1.0](https://img.shields.io/badge/TypeScript_docs-master-2b7489)](https://mcaptcha.github.io/browser/ts/docs/modules.html)
+![Build)](<https://github.com/mCaptcha/browser/workflows/CI%20(Linux)/badge.svg>)
+[![dependency status](https://deps.rs/repo/github/mCaptcha/browser/status.svg)](https://deps.rs/repo/github/mCaptcha/browser)
+<br />
+[![codecov](https://codecov.io/gh/mCaptcha/browser/branch/master/graph/badge.svg)](https://codecov.io/gh/mCaptcha/browser)
+
+</div>
+
+**NOTE:** wasm compilation currently requires `rustc` nightly and
+wasm optimization of this library will have to be done manually at the
+moment. Please refer to https://github.com/rustwasm/wasm-pack/issues/886
+for more information.
+
+### Optimization:
+
+```
+$ /path/to/wasm-opt pkg/pow_bg.wasm -o pkg/pow_bg.wasm -O --enable-mutable-globals
+```
+
+My `/path/to/wasm-opt` is `~/.cache/.wasm-pack/wasm-opt-4d7a65327e9363b7/wasm-opt`
+
+---
+
+<h2>  Default documentation provided by Rust wasm: </h2>
+
+  <h3>
+    <a href="https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html">Tutorial</a>
+    <span> | </span>
+    <a href="https://discordapp.com/channels/442252698964721669/443151097398296587">Chat</a>
+  </h3>
+
+<sub>Built with 🦀🕸 by <a href="https://rustwasm.github.io/">The Rust and WebAssembly Working Group</a></sub>
+
+</div>
+
+## About
+
+[**📚 Read this template tutorial! 📚**][template-docs]
+
+This template is designed for compiling Rust libraries into WebAssembly and
+publishing the resulting package to NPM.
+
+Be sure to check out [other `wasm-pack` tutorials online][tutorials] for other
+templates and usages of `wasm-pack`.
+
+[tutorials]: https://rustwasm.github.io/docs/wasm-pack/tutorials/index.html
+[template-docs]: https://rustwasm.github.io/docs/wasm-pack/tutorials/npm-browser-packages/index.html
+
+## 🚴 Usage
+
+### 🐑 Use `cargo generate` to Clone this Template
+
+[Learn more about `cargo generate` here.](https://github.com/ashleygwilliams/cargo-generate)
+
+```
+cargo generate --git https://github.com/rustwasm/wasm-pack-template.git --name my-project
+cd my-project
+```
+
+### 🛠️ Build with `wasm-pack build`
+
+```
+wasm-pack build
+```
+
+### 🔬 Test in Headless Browsers with `wasm-pack test`
+
+```
+wasm-pack test --headless --firefox
+```
+
+### 🎁 Publish to NPM with `wasm-pack publish`
+
+```
+wasm-pack publish
+```
+
+## 🔋 Batteries Included
+
+- [`wasm-bindgen`](https://github.com/rustwasm/wasm-bindgen) for communicating
+  between WebAssembly and JavaScript.
+- [`console_error_panic_hook`](https://github.com/rustwasm/console_error_panic_hook)
+  for logging panic messages to the developer console.
+- [`wee_alloc`](https://github.com/rustwasm/wee_alloc), an allocator optimized
+  for small code size.
--- a/browser/src/lib.rs
+++ b/browser/src/lib.rs
@ -0,0 +1,154 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+//! mCaptcha is a proof of work based Denaial-of-Service attack protection system.
+//! This is is a WASM library that you can embed in your frontend code to protect your
+//! service.
+//!
+//! A commercial managed solution is in the works but I'd much rather prefer
+//! folks host their own instances as it will make the more decentralized and free.
+//!
+//! ## Workflow:
+//! mCaptcha workflow in the frontend is simple.
+//! 1. Call service to get a proof of work(PoW) configuration
+//! 2. Call into mCaptcha to get PoW
+//! 3. Send PoW to mCaptcha service
+//! 4. If proof is valid, the service will return a token to the client
+//! 5. Submit token to your backend along with your app data(if any)
+//! 6. In backend, validate client's token with mCaptcha service
+//!
+//! ## Example:
+//!
+//! generate proof-of-work
+//! ```rust
+//! fn main() {
+//!    use mcaptcha_browser::*;
+//!    use pow_sha256::*;
+//!
+//!
+//!    // salt using which PoW should be computed
+//!    const SALT: &str = "yrandomsaltisnotlongenoug";
+//!    // one-time phrase over which PoW should be computed
+//!    const PHRASE: &str = "ironmansucks";
+//!    // and the difficulty factor
+//!    const DIFFICULTY: u32 = 1000;
+//!
+//!    // currently gen_pow() returns a JSON formated string to better communicate
+//!    // with JavaScript. See [PoW<T>][pow_sha256::PoW] for schema
+//!    let serialised_work = gen_pow(SALT.into(), PHRASE.into(), DIFFICULTY);
+//!
+//!
+//!    let work: Work = serde_json::from_str(&serialised_work).unwrap();
+//!
+//!    let work = PoWBuilder::default()
+//!        .result(work.result)
+//!        .nonce(work.nonce)
+//!        .build()
+//!        .unwrap();
+//!
+//!    let config = ConfigBuilder::default().salt(SALT.into()).build().unwrap();
+//!    assert!(config.is_valid_proof(&work, &PHRASE.to_string()));
+//!    assert!(config.is_sufficient_difficulty(&work, DIFFICULTY));
+//! }
+//! ```
+
+use serde::{Deserialize, Serialize};
+use wasm_bindgen::prelude::*;
+
+// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
+// allocator.
+#[cfg(feature = "wee_alloc")]
+#[global_allocator]
+static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
+
+use pow_sha256::{ConfigBuilder, PoW};
+
+#[derive(Deserialize, Serialize)]
+pub struct Work {
+    pub result: String,
+    pub nonce: u64,
+}
+
+impl From<PoW<String>> for Work {
+    fn from(p: PoW<String>) -> Self {
+        Work {
+            result: p.result,
+            nonce: p.nonce,
+        }
+    }
+}
+
+/// generate proof-of-work
+/// ```rust
+/// fn main() {
+///    use mcaptcha_browser::*;
+///    use pow_sha256::*;
+///
+///
+///    // salt using which PoW should be computed
+///    const SALT: &str = "yrandomsaltisnotlongenoug";
+///    // one-time phrase over which PoW should be computed
+///    const PHRASE: &str = "ironmansucks";
+///    // and the difficulty factor
+///    const DIFFICULTY: u32 = 1000;
+///
+///    // currently gen_pow() returns a JSON formated string to better communicate
+///    // with JavaScript. See [PoW<T>][pow_sha256::PoW] for schema
+///    let serialised_work = gen_pow(SALT.into(), PHRASE.into(), DIFFICULTY);
+///
+///
+///    let work: Work = serde_json::from_str(&serialised_work).unwrap();
+///    
+///    let work = PoWBuilder::default()
+///        .result(work.result)
+///        .nonce(work.nonce)
+///        .build()
+///        .unwrap();
+///    
+///    let config = ConfigBuilder::default().salt(SALT.into()).build().unwrap();
+///    assert!(config.is_valid_proof(&work, &PHRASE.to_string()));
+///    assert!(config.is_sufficient_difficulty(&work, DIFFICULTY));
+/// }
+/// ```
+#[wasm_bindgen]
+pub fn gen_pow(salt: String, phrase: String, difficulty_factor: u32) -> String {
+    let config = ConfigBuilder::default().salt(salt).build().unwrap();
+
+    let work = config.prove_work(&phrase, difficulty_factor).unwrap();
+    let work: Work = work.into();
+
+    let payload = serde_json::to_string(&work).unwrap();
+    payload
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use pow_sha256::PoWBuilder;
+
+    const SALT: &str = "yrandomsaltisnotlongenoug";
+    const PHRASE: &str = "ironmansucks";
+    const DIFFICULTY: u32 = 1000;
+    #[test]
+    fn it_works() {
+        let serialised_work = gen_pow(SALT.into(), PHRASE.into(), DIFFICULTY);
+        let work: Work = serde_json::from_str(&serialised_work).unwrap();
+
+        let work = PoWBuilder::default()
+            .result(work.result)
+            .nonce(work.nonce)
+            .build()
+            .unwrap();
+
+        let config = ConfigBuilder::default().salt(SALT.into()).build().unwrap();
+        assert!(config.is_valid_proof(&work, &PHRASE.to_string()));
+        assert!(config.is_sufficient_difficulty(&work, DIFFICULTY));
+    }
+}
--- a/browser/static/embeded.html
+++ b/browser/static/embeded.html
@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width" />
+    <title>mcaptcha demo form</title>
+  </head>
+  <body>
+    <div class="">
+      <!-- BEGIN: ReCAPTCHA implementation example. -->
+      <div
+        id="recaptcha-demo"
+        class="g-recaptcha"
+        data-sitekey="6Le-wvkSAAAAAPBMRTvw0Q4Muexq9bi0DJwx_mJ-"
+        data-callback="onSuccess"
+        data-action="action"
+      >
+        <div style="width: 304px; height: 78px;">
+          <div>
+            <iframe
+              title="mCaptcha"
+              src="http://localhost:7000/widget"
+              role="presentation"
+              name="a-i3v5fjryp9h"
+              scrolling="no"
+              sandbox="allow-scripts"
+              width="304"
+              height="78"
+              frameborder="0"
+            ></iframe>
+<!--              sandbox="allow-forms allow-popups allow-same-origin allow-scripts allow-top-navigation allow-modals allow-popups-to-escape-sandbox allow-storage-access-by-user-activation" -->
+          </div>
+          <textarea
+            id="g-recaptcha-response"
+            name="g-recaptcha-response"
+            class="g-recaptcha-response"
+            style="width: 250px; height: 40px; border: 1px solid rgb(193, 193, 193); margin: 10px 25px; padding: 0px; resize: none; display: none; --darkreader-inline-border-top:#48443c; --darkreader-inline-border-right:#48443c; --darkreader-inline-border-bottom:#48443c; --darkreader-inline-border-left:#48443c;"
+            data-darkreader-inline-border-top=""
+            data-darkreader-inline-border-right=""
+            data-darkreader-inline-border-bottom=""
+            data-darkreader-inline-border-left=""
+          ></textarea>
+        </div>
+        <iframe style="display: none;"></iframe>
+      </div>
+      </script>
+    </div>
+  </body>
+</html>
--- a/browser/static/index.html
+++ b/browser/static/index.html
@ -0,0 +1,124 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>mCaptcha</title>
+  </head>
+  <body>
+    <form class="contaienr">
+      <noscript class="noscript-container">
+        <span class="warning">
+          Please enable JavaScript to receive mCaptcha challenge
+        </span>
+        <a class="source-code" href="https://github.com/mCaptcha">
+          Read our source code
+        </a>
+      </noscript>
+      <label class="checkbox-label" for="verification">
+        <input id="verification" class="checkbox" type="checkbox" />
+        I'm not a robot
+      </label>
+      <div class="details">
+        <a href="https://mcaptcha.org" class="logo-container">
+          <img
+            class="logo"
+            src="https://mcaptcha.org/icon-trans.png"
+            alt="mCaptcha logo"
+          />
+          <p class="brand-name">mCaptcha</p>
+        </a>
+        <div class="links-container">
+          <a class="links" href="https://mcaptcha.org/privacy-policy">
+            Privacy
+          </a>
+          <a class="links" href="https://mcaptcha.org/terms">
+            Terms
+          </a>
+        </div>
+      </div>
+    </form>
+  </body>
+  <style type="text/css" media="screen">
+    .contaienr {
+      max-width: 350px;
+      max-height: 90px;
+      display: flex;
+      box-sizing: border-box;
+    }
+
+    .noscript-container {
+      display: flex;
+      font-size: 0.7rem;
+      line-height: 20px;
+      flex-direction: column;
+      padding: 5px;
+    }
+
+    .warning {
+      display: block;
+      margin: auto;
+      flex: 2;
+      width: 100%;
+      margin: auto;
+    }
+
+    .source-code {
+      display: block;
+      flex: 1;
+    }
+
+    .checkbox-label {
+      display: none;
+      /*display: flex; */
+      align-items: center;
+      line-height: 30px;
+      flex: 2;
+      margin: auto;
+      font-size: 0.99rem;
+    }
+
+    .checkbox {
+      width: 30px;
+      height: 30px;
+      margin: 0 10px;
+    }
+
+    .details {
+      flex: 1;
+      display: flex;
+      flex-direction: column;
+      box-sizing: border-box;
+    }
+
+    .logo-container {
+      flex: 2;
+      padding-top: 5px;
+    }
+
+    .brand-name {
+      font-size: 0.6rem;
+      margin: auto;
+      text-align: center;
+    }
+
+    .logo {
+      display: block;
+      width: 45px;
+      margin: auto;
+    }
+
+    .links-container {
+      display: flex;
+      margin: auto;
+    }
+
+    .links {
+      font-size: 0.5rem;
+      margin: 5px;
+    }
+  </style>
+  <script>
+    document.querySelector(".checkbox-label").style.display = "flex";
+  </script>
+</html>
--- a/browser/tests/web.rs
+++ b/browser/tests/web.rs
@ -0,0 +1,42 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+//! Test suite for the Web and headless browsers.
+
+#![cfg(target_arch = "wasm32")]
+
+extern crate wasm_bindgen_test;
+use wasm_bindgen_test::*;
+
+wasm_bindgen_test_configure!(run_in_browser);
+
+#[wasm_bindgen_test]
+fn pow_generation_works() {
+    use mcaptcha_browser::*;
+    use pow_sha256::*;
+
+    const SALT: &str = "yrandomsaltisnotlongenoug";
+    const PHRASE: &str = "ironmansucks";
+    const DIFFICULTY: u32 = 1000;
+    let serialised_work = gen_pow(SALT.into(), PHRASE.into(), DIFFICULTY);
+
+    let work: Work = serde_json::from_str(&serialised_work).unwrap();
+
+    let work = PoWBuilder::default()
+        .result(work.result)
+        .nonce(work.nonce)
+        .build()
+        .unwrap();
+
+    let config = ConfigBuilder::default().salt(SALT.into()).build().unwrap();
+    assert!(config.is_valid_proof(&work, &PHRASE.to_string()));
+    assert!(config.is_sufficient_difficulty(&work, DIFFICULTY));
+}
--- a/build.rs
+++ b/build.rs
@ -37,20 +37,24 @@ fn main() {
 }

 fn cache_bust() {
-    let types = vec![
-        mime::IMAGE_PNG,
-        mime::IMAGE_SVG,
-        mime::IMAGE_JPEG,
-        mime::IMAGE_GIF,
-        mime::APPLICATION_JAVASCRIPT,
-        mime::TEXT_CSS,
-    ];
+    //    until APPLICATION_WASM gets added to mime crate
+    //    PR: https://github.com/hyperium/mime/pull/138
+    //    let types = vec![
+    //        mime::IMAGE_PNG,
+    //        mime::IMAGE_SVG,
+    //        mime::IMAGE_JPEG,
+    //        mime::IMAGE_GIF,
+    //        mime::APPLICATION_JAVASCRIPT,
+    //        mime::TEXT_CSS,
+    //    ];
+
+    let no_hash = vec!["bundle/6b88f6ccf97567b46745.module.wasm"];

    let config = BusterBuilder::default()
        .source("./static/cache")
        .result("./assets")
-        .mime_types(types)
        .copy(true)
+        .no_hash(no_hash)
        .follow_links(true)
        .build()
        .unwrap();
--- a/src/api/v1/auth.rs
+++ b/src/api/v1/auth.rs
@ -226,6 +226,6 @@ async fn signout(id: Identity) -> impl Responder {
        id.forget();
    }
    HttpResponse::Found()
-        .append_header((header::LOCATION, "/login"))
+        .append_header((header::LOCATION, crate::PAGES.auth.login))
        .finish()
 }
--- a/src/main.rs
+++ b/src/main.rs
@ -63,6 +63,7 @@ lazy_static! {
        FILES.get("./static/cache/bundle/bundle.css").unwrap();
    pub static ref MOBILE_CSS: &'static str =
        FILES.get("./static/cache/bundle/mobile.css").unwrap();
+
    pub static ref VERIFICATIN_WIDGET_JS: &'static str =
        FILES.get("./static/cache/bundle/verificationWidget.js").unwrap();
    pub static ref VERIFICATIN_WIDGET_CSS: &'static str =
--- a/src/widget/mod.rs
+++ b/src/widget/mod.rs
@ -14,13 +14,9 @@
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
-use std::borrow::Cow;
-
-use actix_web::body::Body;
-use actix_web::{get, http::header, web, HttpResponse, Responder};
+//! User facing CAPTCHA widget
+use actix_web::{web, HttpResponse, Responder};
 use lazy_static::lazy_static;
-use mime_guess::from_path;
-use rust_embed::RustEmbed;
 use sailfish::TemplateOnce;

 use crate::errors::*;
@ -30,16 +26,12 @@ pub const WIDGET_ROUTES: routes::Widget = routes::Widget::new();
 pub mod routes {
    pub struct Widget {
        pub verification_widget: &'static str,
-        pub js: &'static str,
-        pub wasm: &'static str,
    }

    impl Widget {
        pub const fn new() -> Self {
            Widget {
                verification_widget: "/widget",
-                js: "/widget/bundle.js",
-                wasm: "/widget/1476099975f2b060264c.module.wasm",
            }
        }
    }
@ -69,37 +61,9 @@ async fn show_widget() -> PageResult<impl Responder> {
        .body(&*INDEX_PAGE))
 }

-#[derive(RustEmbed)]
-#[folder = "static/widget/"]
-struct WidgetAssets;
-
-fn handle_widget_assets(path: &str) -> HttpResponse {
-    match WidgetAssets::get(path) {
-        Some(content) => {
-            let body: Body = match content {
-                Cow::Borrowed(bytes) => bytes.into(),
-                Cow::Owned(bytes) => bytes.into(),
-            };
-
-            HttpResponse::Ok()
-                .insert_header(header::CacheControl(vec![
-                    header::CacheDirective::MaxAge(crate::CACHE_AGE),
-                ]))
-                .content_type(from_path(path).first_or_octet_stream().as_ref())
-                .body(body)
-        }
-        None => HttpResponse::NotFound().body("404 Not Found"),
-    }
-}
-
-#[get("/widget/{_:.*}")]
-pub async fn widget_assets(path: web::Path<String>) -> impl Responder {
-    handle_widget_assets(&path)
-}
-
+/// widget services
 pub fn services(cfg: &mut web::ServiceConfig) {
    cfg.service(show_widget);
-    cfg.service(widget_assets);
 }

 #[cfg(test)]
@ -112,17 +76,6 @@ mod test {
    #[actix_rt::test]
    async fn captcha_widget_route_works() {
        let mut app = get_app!().await;
-        //            let list_sitekey_resp = test::call_service(
-        //                    &mut app,
-        //                    test::TestRequest::get()
-        //                        .uri(crate::WIDGET_ROUTES.verification_widget)
-        //                        .to_request(),
-        //            )
-        //            .await;
-        //            assert_eq!(list_sitekey_resp.status(), StatusCode::OK);
-
        get_works!(app, crate::WIDGET_ROUTES.verification_widget);
-        get_works!(app, crate::WIDGET_ROUTES.js);
-        get_works!(app, crate::WIDGET_ROUTES.wasm);
    }
 }
--- a/static/widget/1476099975f2b060264c.module.wasm
+++ b/static/widget/1476099975f2b060264c.module.wasm
--- a/static/widget/858fd6c482cc75111d54.module.wasm
+++ b/static/widget/858fd6c482cc75111d54.module.wasm
--- a/static/widget/bundle.js
+++ b/static/widget/bundle.js
--- a/templates/widget/footer.html
+++ b/templates/widget/footer.html
@ -5,7 +5,5 @@
    href="<.= &*crate::VERIFICATIN_WIDGET_CSS .>" 
  />
 <script src="<.= &*crate::VERIFICATIN_WIDGET_JS .>"></script>
-<script src="<.= &*crate::WIDGET_ROUTES.js .>"></script>
-<script src="<.= &*crate::WIDGET_ROUTES.wasm .>"></script>
 </body>
 </html>
--- a/templates/widget/js/const.ts
+++ b/templates/widget/js/const.ts
@ -0,0 +1,152 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+/** mcaptcha checkbox ID **/
+export const btnId = 'widget__verification-checkbox';
+
+/** get sitekey */
+export const sitekey = () => {
+  let sitekey;
+  return (() => {
+    if (sitekey === null || sitekey === undefined) {
+      sitekey = new URL(window.location.href).searchParams.get('sitekey');
+      if (sitekey === null || sitekey === undefined) {
+        throw new Error(`Define sitekey in query parameter`);
+      }
+    }
+    return sitekey;
+  })();
+};
+
+/** mCaptcha API routes */
+export const ROUTES = (() => {
+  const getConfig = '/api/v1/pow/config';
+  const verififyPoW = '/api/v1/pow/verify';
+
+  return {
+    /** get URL to fetch PoW configuration */
+    getConfig,
+    /** get URL to verify PoW*/
+    verififyPoW,
+  };
+})();
+
+/** get mCaptcha verifify checkbox button */
+export const btn = () => {
+  let btn;
+  return (() => {
+    if (btn === null || btn === undefined) {
+      btn = <HTMLInputElement>document.getElementById(btnId);
+      if (btn === null || btn === undefined) {
+        throw new Error(`mCaptcha button not found)`);
+      }
+    }
+    return btn;
+  })();
+};
+
+export const messageText = () => {
+  let beforeClass = 'widget__verification-text--before';
+  let duringClass = 'widget__verification-text--during';
+  let errorClass = 'widget__verification-text--error';
+  let afterClass = 'widget__verification-text--after';
+
+  let before: HTMLElement;
+  let after: HTMLElement;
+  let during: HTMLElement;
+  let error: HTMLElement;
+
+  /** runner fn to display HTMLElement **/
+  const showMsg = (e: HTMLElement) => (e.style.display = 'block');
+  /** runner fn to hide HTMLElement **/
+  const hideMsg = (e: HTMLElement) => (e.style.display = 'none');
+
+  /** lazy init and get before elementt **/
+  const getBefore = () => {
+    if (before === null || before === undefined) {
+      before = <HTMLElement>document.querySelector(`.${beforeClass}`);
+      if (before === null || before === undefined) {
+        throw new Error(`before element not found)`);
+      }
+      return before;
+    }
+  };
+
+  /** lazy init and get after elementt **/
+  const getAfter = () => {
+    if (after === null || after === undefined) {
+      after = <HTMLSpanElement>document.querySelector(`.${afterClass}`);
+      if (after === null || after === undefined) {
+        throw new Error(`after element not found)`);
+      }
+    }
+
+    return after;
+  };
+
+  /** lazy init and get error elementt **/
+  const getError = () => {
+    if (error === null || error === undefined) {
+      error = <HTMLSpanElement>document.querySelector(`.${errorClass}`);
+      if (error === null || error === undefined) {
+        throw new Error(`before error not found)`);
+      }
+    }
+    return error;
+  };
+
+  /** lazy init and get during elementt **/
+  const getDuring = () => {
+    if (during === null || during === undefined) {
+      during = <HTMLSpanElement>document.querySelector(`.${duringClass}`);
+      if (during === null || during === undefined) {
+        throw new Error(`before during not found)`);
+      }
+    }
+
+    return during;
+  };
+  return {
+    /** display "before" message **/
+    before: () => {
+      showMsg(getBefore());
+      hideMsg(getAfter());
+      hideMsg(getDuring());
+      hideMsg(getError());
+    },
+
+    /** display "after" message **/
+    after: () => {
+      hideMsg(getBefore());
+      showMsg(getAfter());
+      hideMsg(getDuring());
+      hideMsg(getError());
+    },
+
+    /** display "during" message **/
+    during: () => {
+      hideMsg(getBefore());
+      hideMsg(getAfter());
+      showMsg(getDuring());
+      hideMsg(getError());
+    },
+
+    /** display "error" message **/
+    error: () => {
+      hideMsg(getBefore());
+      hideMsg(getAfter());
+      hideMsg(getDuring());
+      showMsg(getError());
+    },
+  };
+};
+
+export const inputId = 'mcaptcha-response';
--- a/templates/widget/js/fetchPoWConfig.ts
+++ b/templates/widget/js/fetchPoWConfig.ts
@ -0,0 +1,48 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+import genJsonPayload from './utils/genJsonPayload';
+import * as CONST from './const';
+
+type GetConfigPayload = {
+  key: string;
+};
+
+export type PoWConfig = {
+  string: string;
+  difficulty_factor: number;
+  salt: string;
+};
+
+/**
+ * fetch proof-of-work configuration
+ * @returns {PoWConfig} pow config
+ * */
+export const fetchPoWConfig = async () => {
+  try {
+    const payload: GetConfigPayload = {
+      key: CONST.sitekey(),
+    };
+
+    const res = await fetch(CONST.ROUTES.getConfig, genJsonPayload(payload));
+    if (res.ok) {
+      const config: PoWConfig = await res.json();
+      return config;
+    } else {
+      const err = await res.json();
+      throw new Error(err);
+    }
+  } catch (err) {
+    throw err;
+  }
+};
+
+export default fetchPoWConfig;
--- a/templates/widget/js/index.ts
+++ b/templates/widget/js/index.ts
@ -0,0 +1,68 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+import prove from './prove';
+import fetchPoWConfig from './fetchPoWConfig';
+import sendWork from './sendWork';
+import sendToParent from './sendToParent';
+import * as CONST from './const';
+
+import '../main.scss';
+
+let LOCK = false;
+
+/** add  mcaptcha widget element to DOM */
+export const registerVerificationEventHandler = () => {
+  const verificationContainer = <HTMLElement>(
+    document.querySelector('.widget__verification-container')
+  );
+  verificationContainer.style.display = 'flex';
+  CONST.btn().addEventListener('click', e => solveCaptchaRunner(e));
+};
+
+export const solveCaptchaRunner = async (e: Event) => {
+  if (LOCK) {
+    e.preventDefault();
+    return;
+  }
+
+  try {
+    LOCK = true;
+    if (CONST.btn().checked == false) {
+      CONST.messageText().before();
+      LOCK = false;
+      return;
+    }
+    e.preventDefault();
+    // steps:
+
+    // 1. show during
+    CONST.messageText().during();
+    // 1. get config
+    const config = await fetchPoWConfig();
+    // 2. prove work
+    const proof = await prove(config);
+    // 3. submit work
+    const token = await sendWork(proof);
+    // 4. send token
+    sendToParent(token);
+    // 5. mark checkbox checked
+    CONST.btn().checked = true;
+    CONST.messageText().after();
+    LOCK = false;
+  } catch (e) {
+    CONST.messageText().error();
+    console.error(e);
+    LOCK = false;
+  }
+};
+
+registerVerificationEventHandler();
--- a/templates/widget/js/prove.ts
+++ b/templates/widget/js/prove.ts
@ -0,0 +1,55 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+import {gen_pow} from '../../../browser/pkg/index';
+import {PoWConfig} from './fetchPoWConfig';
+import * as CONST from './const';
+
+export type Work = {
+  result: string;
+  nonce: number;
+  string: string;
+  key: string;
+};
+
+type WasmWork = {
+  result: string;
+  nonce: number;
+};
+
+/**
+ * proove work
+ * @param {PoWConfig} config - the proof-of-work configuration using which
+ * work needs to be computed
+ * */
+const prove = async (config: PoWConfig) => {
+  try {
+    const proofString = gen_pow(
+      config.salt,
+      config.string,
+      config.difficulty_factor,
+    );
+    const proof: WasmWork = JSON.parse(proofString);
+
+    const res: Work = {
+      key: CONST.sitekey(),
+      string: config.string,
+      nonce: proof.nonce,
+      result: proof.result,
+    };
+
+    return res;
+  } catch (err) {
+    throw err;
+  }
+};
+
+export default prove;
--- a/templates/widget/js/sendToParent.ts
+++ b/templates/widget/js/sendToParent.ts
@ -0,0 +1,24 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+import {Token} from './sendWork';
+
+/**
+ * send pow validation token as message to parant of the iframe
+ * @param {Token} token: token received from mCaptcha service
+ * upon successful PoW validation
+ * */
+export const sendToParent = (token: Token) => {
+  window.parent.postMessage(token, '*');
+  // TODO set origin. Make parent send origin as query parameter
+  // or as a message to iframe
+};
+
+export default sendToParent;
--- a/templates/widget/js/sendWork.ts
+++ b/templates/widget/js/sendWork.ts
@ -0,0 +1,42 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+import genJsonPayload from './utils/genJsonPayload';
+import * as CONST from './const';
+import {Work} from './prove';
+
+export type Token = {
+  token: string;
+};
+
+export const sendWork = async (payload: Work) => {
+  try {
+    const res = await fetch(CONST.ROUTES.verififyPoW, genJsonPayload(payload));
+    if (res.ok) {
+      console.debug('work verified');
+      const token: Token = await res.json();
+      console.debug(`token ${token.token}`);
+      return token;
+    } else {
+      const err = await res.json();
+      console.error(`error: ${err.error}`);
+      throw new Error(err);
+    }
+  } catch (err) {
+    CONST.messageText().error();
+    console.error(err);
+    await new Promise(r => setTimeout(r, 1000));
+    window.location.reload();
+    throw err;
+  }
+};
+
+export default sendWork;
--- a/templates/widget/js/tests/const.test.ts
+++ b/templates/widget/js/tests/const.test.ts
@ -0,0 +1,50 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+import * as CONST from '../const';
+
+import {getBaseHtml, sitekey, checkbox} from './setupTests';
+import * as TESTElements from './setupTests';
+
+it('const works', () => {
+  const body = document.querySelector('body');
+  const container = getBaseHtml();
+  body.appendChild(container);
+  expect(CONST.sitekey()).toBe(sitekey);
+  expect(CONST.btn()).toBe(checkbox);
+
+  // display after
+  CONST.messageText().after();
+  expect(TESTElements.afterMsg.style.display).toBe('block');
+  expect(TESTElements.beforeMsg.style.display).toBe('none');
+  expect(TESTElements.duringMsg.style.display).toBe('none');
+  expect(TESTElements.errorMsg.style.display).toBe('none');
+
+  // display before
+  CONST.messageText().before();
+  expect(TESTElements.afterMsg.style.display).toBe('none');
+  expect(TESTElements.beforeMsg.style.display).toBe('block');
+  expect(TESTElements.duringMsg.style.display).toBe('none');
+  expect(TESTElements.errorMsg.style.display).toBe('none');
+
+  // display during
+  CONST.messageText().during();
+  expect(TESTElements.afterMsg.style.display).toBe('none');
+  expect(TESTElements.beforeMsg.style.display).toBe('none');
+  expect(TESTElements.duringMsg.style.display).toBe('block');
+  expect(TESTElements.errorMsg.style.display).toBe('none');
+
+  // display error
+  CONST.messageText().error();
+  expect(TESTElements.afterMsg.style.display).toBe('none');
+  expect(TESTElements.beforeMsg.style.display).toBe('none');
+  expect(TESTElements.duringMsg.style.display).toBe('none');
+  expect(TESTElements.errorMsg.style.display).toBe('block');
+});
--- a/templates/widget/js/tests/setupTests.ts
+++ b/templates/widget/js/tests/setupTests.ts
@ -0,0 +1,40 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+import * as CONST from '../const';
+
+export const sitekey = 'imbatman';
+
+export const checkbox = <HTMLInputElement>document.createElement('input');
+checkbox.type = 'checkbox';
+checkbox.id = CONST.btnId;
+
+const getMessages = (state: string) => {
+  const msg = <HTMLElement>document.createElement('span');
+  msg.className = `widget__verification-text--${state}`;
+  return msg;
+};
+
+export const beforeMsg = getMessages('before');
+export const afterMsg = getMessages('after');
+export const duringMsg = getMessages('during');
+export const errorMsg = getMessages('error');
+
+/** get base HTML with empty mCaptcha container */
+export const getBaseHtml = () => {
+  const form = <HTMLFormElement>document.createElement('form');
+  form.appendChild(checkbox);
+  form.appendChild(beforeMsg);
+  form.appendChild(duringMsg);
+  form.appendChild(afterMsg);
+  form.appendChild(errorMsg);
+
+  return form;
+};
--- a/templates/widget/js/utils/genJsonPayload.test.ts
+++ b/templates/widget/js/utils/genJsonPayload.test.ts
@ -0,0 +1,30 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+import genJsonPayload from './genJsonPayload';
+
+'use strict';
+
+const payload = {
+  username: 'Jhon',
+};
+
+const value = {
+  method: 'POST',
+  headers: {
+    'Content-Type': 'application/json',
+  },
+  body: JSON.stringify(payload),
+};
+
+it('getFromUrl workds', () => {
+  expect(genJsonPayload(payload)).toEqual(value);
+});
--- a/templates/widget/js/utils/genJsonPayload.ts
+++ b/templates/widget/js/utils/genJsonPayload.ts
@ -0,0 +1,23 @@
+/*
+ * mCaptcha is a PoW based DoS protection software.
+ * This is the frontend web component of the mCaptcha system
+ * Copyright © 2021 Aravinth Manivnanan <realaravinth@batsense.net>.
+ *
+ * Use of this source code is governed by Apache 2.0 or MIT license.
+ * You shoud have received a copy of MIT and Apache 2.0 along with
+ * this program. If not, see <https://spdx.org/licenses/MIT.html> for
+ * MIT or <http://www.apache.org/licenses/LICENSE-2.0> for Apache.
+ */
+
+const genJsonPayload = (payload: any) => {
+  const value = {
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/json',
+    },
+    body: JSON.stringify(payload),
+  };
+  return value;
+};
+
+export default genJsonPayload;
--- a/webpack.config.js
+++ b/webpack.config.js
@ -11,7 +11,7 @@ module.exports = {
  entry: {
    bundle: './templates/index.ts',
    mobile: './templates/mobile.ts',
-    verificationWidget: './templates/widget/index.ts',
+    verificationWidget: './templates/widget/js/index.ts',
  },
  output: {
    filename: '[name].js',
@ -45,10 +45,10 @@ module.exports = {

  plugins: [
    new MiniCssExtractPlugin(),
-//    new WasmPackPlugin({
-//      crateDirectory: __dirname,
-//      outName: "pow.wasm",
-//    }),
+    //    new WasmPackPlugin({
+    //      crateDirectory: __dirname,
+    //      outName: "pow.wasm",
+    //    }),
  ],
  optimization: {
    minimizer: [
@ -57,13 +57,13 @@ module.exports = {
      new CssMinimizerPlugin(),
    ],
  },
-//  experiments: {
-//    //  executeModule: true,
-//    //  outputModule: true,
-//    //syncWebAssembly: true,
-//    //  topLevelAwait: true,
-//    asyncWebAssembly: true,
-//    //  layers: true,
-//    //  lazyCompilation: true,
-//  },
+  experiments: {
+    //  executeModule: true,
+    //  outputModule: true,
+    //syncWebAssembly: true,
+    //  topLevelAwait: true,
+    asyncWebAssembly: true,
+    //  layers: true,
+    //  lazyCompilation: true,
+  },
 };