feat: Add WASM build for toxcore and websocket bootstrap node.

The websocket bootstrap node will be running on Heroku.

.github/settings.yml

@@ -18,9 +18,9 @@ branches:
           - "bazel-opt"
           - "bazel-tsan"
           - "bazel-valgrind"
-          - "build-bootstrapd-docker"
           - "build-compcert"
           - "build-macos"
+          - "build-msan"
           - "build-nacl"
           - "build-tcc"
           - "build-win32"
@@ -38,6 +38,9 @@ branches:
           - "cimple"
           - "code-review/reviewable"
           - "continuous-integration/appveyor/pr"
+          - "docker-bootstrap-node"
+          - "docker-bootstrap-node-websocket"
+          - "docker-toxcore-js"
           - "mypy"
           - "sonar-scan"
 

.github/workflows/docker.yml

@@ -7,13 +7,11 @@ on:
     branches: [master]
 
 jobs:
-  build-bootstrapd-docker:
+  docker-bootstrap-node:
     runs-on: ubuntu-latest
     steps:
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v1
       - name: Login to DockerHub
-        if: github.event_name == 'push'
+        if: ${{ github.event_name == 'push' }}
         uses: docker/login-action@v1
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
@@ -22,8 +20,49 @@ jobs:
       - name: Docker Build
         run: .github/scripts/tox-bootstrapd-docker local
       - name: Push latest image to DockerHub
-        if: github.event_name == 'push'
+        if: ${{ github.event_name == 'push' }}
         run: docker push toxchat/bootstrap-node:latest
       - name: Push versioned image to DockerHub
-        if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
+        if: ${{ github.event_name == 'push' && contains(github.ref, 'refs/tags/') }}
         run: docker push toxchat/bootstrap-node:"$(other/print-version)"
+
+  docker-toxcore-js:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to DockerHub
+        if: ${{ github.event_name == 'push' }}
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          file: other/emscripten/Dockerfile
+          push: ${{ github.event_name == 'push' }}
+          tags: toxchat/toxcore-js:latest
+          cache-from: type=registry,ref=toxchat/toxcore-js:latest
+          cache-to: type=inline
+
+  docker-bootstrap-node-websocket:
+    runs-on: ubuntu-latest
+    needs: [docker-bootstrap-node]
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to DockerHub
+        if: ${{ github.event_name == 'push' }}
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: "{{defaultContext}}:other/bootstrap_daemon/websocket"
+          push: ${{ github.event_name == 'push' }}
+          tags: toxchat/bootstrap-node:latest-websocket
+          cache-from: type=registry,ref=toxchat/bootstrap-node:latest-websocket
+          cache-to: type=inline

.hadolint.yaml

@@ -1,5 +1,9 @@
 ---
 ignored:
+  # "cd" is sometimes useful when you want to run one command in one directory
+  # and then another command in another directory, but they should be executed
+  # in the same RUN instruction.
+  - DL3003
   - DL3007
   - DL3008
   - DL3013

heroku.yml

@@ -0,0 +1,4 @@
+---
+build:
+  docker:
+    web: other/bootstrap_daemon/websocket/Dockerfile

other/bootstrap_daemon/docker/update-sha256

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 set -eux
 

other/bootstrap_daemon/websocket/Dockerfile

@@ -0,0 +1,29 @@
+# Stage 1 - Compile websockify.
+FROM toxchat/bootstrap-node:latest AS tox
+FROM golang:1.17-alpine AS websockify
+
+COPY websockify /work/websockify
+RUN cd /work/websockify && go mod download github.com/gorilla/websocket && go install
+
+# Stage 2 - Create the run-time image with bootstrap daemon and websockify.
+FROM alpine:latest
+
+RUN addgroup -S tox && adduser -SDH -G tox tox
+
+COPY --from=websockify /go/bin/websockify /usr/local/bin/
+COPY --from=tox /usr/local /usr/local/
+COPY --from=tox /etc/tox-bootstrapd.conf /etc/
+COPY entrypoint.sh /
+
+RUN mkdir -p /var/lib/tox-bootstrapd/ /var/run/tox-bootstrapd/ \
+ && chown tox:tox /var/lib/tox-bootstrapd/ /var/run/tox-bootstrapd/
+# Public Key: 122837CCDD474DD1183A83152164D51427044B3EAAA52ED683F6BA602568673B
+COPY keys /var/lib/tox-bootstrapd/
+USER tox
+
+# Use this to generate a keys file:
+#RUN /usr/local/bin/tox-bootstrapd --config /etc/tox-bootstrapd.conf --log-backend stdout \
+# && sleep 1
+
+WORKDIR /web
+CMD ["/entrypoint.sh"]

other/bootstrap_daemon/websocket/entrypoint.sh

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+set -eux
+
+/usr/local/bin/tox-bootstrapd --config /etc/tox-bootstrapd.conf --log-backend stdout
+/usr/local/bin/websockify -l "0.0.0.0:$PORT" -t 127.0.0.1:33445

other/bootstrap_daemon/websocket/keys

@@ -0,0 +1 @@
+(7ĚÝGMŃ:<3A>!dŐ'K>ŞĄ.Ö<>öş`%hg;„GÄŮYŞ:ĘZy5<79>ŁSŕ$Í|CÚ ŚÇ¸–2Ě	 t

other/bootstrap_daemon/websocket/websockify/go.mod

@@ -0,0 +1,7 @@
+module github.com/TokTok/c-toxcore/other/bootstrap_daemon/websocket/websockify
+
+go 1.17
+
+require (
+    github.com/gorilla/websocket master
+)

other/bootstrap_daemon/websocket/websockify/websockify.go

@@ -0,0 +1,111 @@
+// A Go version WebSocket to TCP socket proxy
+//
+// This is a heavily modified version of this file:
+//   https://github.com/novnc/websockify-other/blob/master/golang/websockify.go
+//
+// Changes include:
+// - Fix infinite loop on error.
+// - Proper logging.
+// - Proper error handling in general.
+// - Support both websocket and regular GET requests on /.
+//
+// Copyright 2022 The TokTok team.
+// Copyright 2021 Michael.liu.
+// See LICENSE for licensing conditions.
+
+package main
+
+import (
+	"encoding/hex"
+	"flag"
+	"log"
+	"net"
+	"net/http"
+
+	"github.com/gorilla/websocket"
+)
+
+var (
+	sourceAddr = flag.String("l", "127.0.0.1:8080", "http service address")
+	targetAddr = flag.String("t", "127.0.0.1:5900", "tcp service address")
+)
+
+var upgrader = websocket.Upgrader{
+	// Should be enough to fit any Tox TCP packets.
+	ReadBufferSize:  2048,
+	WriteBufferSize: 2048,
+	Subprotocols: []string{"binary"},
+	CheckOrigin: func(r *http.Request) bool {
+		return true
+	},
+}
+
+func forwardTCP(wsconn *websocket.Conn, conn net.Conn) {
+	var tcpbuffer [2048]byte
+	defer wsconn.Close()
+	defer conn.Close()
+	for {
+		n, err := conn.Read(tcpbuffer[0:])
+		if err != nil {
+			log.Println("TCP READ :", err)
+			break
+		}
+		log.Println("TCP READ :", n, hex.EncodeToString(tcpbuffer[0:n]))
+
+		if err := wsconn.WriteMessage(websocket.BinaryMessage, tcpbuffer[0:n]); err != nil {
+			log.Println("WS WRITE :", err)
+			break
+		}
+		log.Println("WS WRITE :", n)
+	}
+}
+
+func forwardWeb(wsconn *websocket.Conn, conn net.Conn) {
+	defer wsconn.Close()
+	defer conn.Close()
+	for {
+		_, buffer, err := wsconn.ReadMessage()
+		if err != nil {
+			log.Println("WS READ  :", err)
+			break
+		}
+		log.Println("WS READ  :", len(buffer), hex.EncodeToString(buffer))
+
+		m, err := conn.Write(buffer)
+		if err != nil {
+			log.Println("TCP WRITE:", err)
+			break
+		}
+		log.Println("TCP WRITE:", m)
+	}
+}
+
+func serveWs(w http.ResponseWriter, r *http.Request) {
+	ws, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Println("upgrade:", err)
+		return
+	}
+	vnc, err := net.Dial("tcp", *targetAddr)
+	if err != nil {
+		log.Println("dial:", err)
+		return
+	}
+	go forwardTCP(ws, vnc)
+	go forwardWeb(ws, vnc)
+
+}
+
+func main() {
+	flag.Parse()
+	log.Println("Starting up websockify endpoint")
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		if r.Header.Get("Upgrade") == "websocket" {
+			serveWs(w, r)
+		} else {
+			http.ServeFile(w, r, r.URL.Path[1:])
+		}
+	})
+	log.Fatal(http.ListenAndServe(*sourceAddr, nil))
+}

other/emscripten/Dockerfile

@@ -0,0 +1,84 @@
+FROM ubuntu:20.04
+
+ENV DEBIAN_FRONTEND="noninteractive"
+
+# Install dependencies.
+RUN apt-get update && apt-get install --no-install-recommends -y \
+ autoconf \
+ automake \
+ ca-certificates \
+ cmake \
+ curl \
+ git \
+ libtool \
+ make \
+ ninja-build \
+ pkg-config \
+ python3 \
+ unzip \
+ wget \
+ xz-utils \
+ && apt-get clean \
+ && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /work/emsdk
+RUN git clone --depth=1 https://github.com/emscripten-core/emsdk /work/emsdk \
+ && ./emsdk install latest \
+ && ./emsdk activate latest
+
+# Build libsodium.
+RUN . "/work/emsdk/emsdk_env.sh" \
+ && git clone --depth=1 --branch=1.0.18 https://github.com/jedisct1/libsodium /work/libsodium \
+ && cd /work/libsodium \
+ && autoreconf -fi \
+ && emconfigure ./configure --disable-shared \
+  --without-pthreads \
+  --disable-ssp --disable-asm --disable-pie \
+ && emmake make install -j8
+
+# Build an unused libsodium binding first so emcc caches all the system
+# libraries. This makes rebuilds of toxcore below much faster.
+RUN . "/work/emsdk/emsdk_env.sh" \
+ && mkdir -p /work/wasm \
+ && emcc -O3 -flto \
+ --closure=1 \
+ -s ALLOW_UNIMPLEMENTED_SYSCALLS=1 \
+ -s EXPORT_NAME=libtoxcore \
+ -s IGNORE_MISSING_MAIN=1 \
+ -s MAIN_MODULE=1 \
+ -s MALLOC=emmalloc \
+ -s MODULARIZE=1 \
+ -s STRICT=1 \
+ -s WEBSOCKET_URL=wss:// \
+ /usr/local/lib/libsodium.a \
+ -o /work/wasm/libsodium.js
+
+# Build c-toxcore.
+COPY . /work/c-toxcore
+RUN . "/work/emsdk/emsdk_env.sh" \
+ && cd /work/c-toxcore \
+ && emcmake cmake -B_build -H. -GNinja \
+ -DCMAKE_C_FLAGS="-O3 -flto -fPIC" \
+ -DBUILD_TOXAV=OFF \
+ -DENABLE_SHARED=OFF \
+ -DBOOTSTRAP_DAEMON=OFF \
+ -DCMAKE_INSTALL_PREFIX:PATH="/usr/local" \
+ -DMIN_LOGGER_LEVEL=DEBUG \
+ && emmake cmake --build _build --parallel 8 --target install
+
+# Build wasm bindings.
+RUN . "/work/emsdk/emsdk_env.sh" \
+ && mkdir -p /work/wasm \
+ && emcc -O3 -flto \
+ --closure=1 \
+ -s ALLOW_UNIMPLEMENTED_SYSCALLS=1 \
+ -s EXPORT_NAME=libtoxcore \
+ -s IGNORE_MISSING_MAIN=1 \
+ -s MAIN_MODULE=1 \
+ -s MALLOC=emmalloc \
+ -s MODULARIZE=1 \
+ -s STRICT=1 \
+ -s WEBSOCKET_URL=wss:// \
+ /usr/local/lib/libsodium.a \
+ /usr/local/lib/libtoxcore.a \
+ -o /work/wasm/libtoxcore.js