Init

.editorconfig

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+# EditorConfig is awesome: http://EditorConfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+indent_size = tab
+tab_width = 4
+max_line_length = 160
+
+[{*.json,*.yaml,*.yml,*.md,*.js}]
+indent_style = space
+indent_size = 2

.github/workflows/docker.yml

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+name: Docker
+
+on:
+  push:
+    branches: [master]
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    name: Docker (dockette/proxychain:latest)
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          push: true
+          tags: dockette/proxychain:latest
+          platforms: linux/amd64,linux/arm64

.gitignore

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+# NodeJS
+/app/node_modules

.gitpod.yml

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+image: f3l1x/gitpod:v1

Dockerfile

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+FROM node:20 as builder
+
+COPY /app/package*.json /srv
+RUN npm install -C /srv
+
+FROM node:20
+
+COPY /app /srv
+COPY --from=builder /srv/node_modules /srv/node_modules
+
+COPY entrypoint.sh /entrypoint.sh
+
+RUN chmod 755 /entrypoint.sh
+
+CMD ["/entrypoint.sh"]

LICENSE

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+MIT License
+
+Copyright (c) 2020 Dockette
+
+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.

Makefile

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+DOCKER_IMAGE=dockette/proxychain
+
+.PHONY: build
+build:
+	docker build -t ${DOCKER_IMAGE} .
+
+.PHONY: run
+run: 
+	docker run -it --rm -p 8080:8080 ${DOCKER_IMAGE}

README.md

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+<h1 align=center>Dockette / Proxychain</h1>
+
+<p align=center>
+   🎁 Dockerized proxychain forward proxy based on [proxy-chain](https://github.com/apify/proxy-chain/tree/master) library.
+</p>
+
+<p align=center>
+🕹 <a href="https://f3l1x.io">f3l1x.io</a> | 💻 <a href="https://github.com/f3l1x">f3l1x</a> | 🐦 <a href="https://twitter.com/xf3l1x">@xf3l1x</a>
+</p>
+
+<p align=center>
+  <a href="https://hub.docker.com/r/dockette/nexus/"><img src="https://badgen.net/docker/pulls/dockette/nexus"></a>
+  <a href="https://bit.ly/ctteg"><img src="https://badgen.net/badge/support/gitter/cyan"></a>
+  <a href="https://github.com/sponsors/f3l1x"><img src="https://badgen.net/badge/sponsor/donations/F96854"></a>
+</p>
+
+-----
+
+## Usage
+
+```
+docker run \
+  -it \
+  --rm \
+  -p 8000:8000 \
+  -e PROXY_PROXYLIST=1.2.3.4:8000 \
+  dockette/proxychain
+```
+
+## Documentation
+
+- `PROXY_PORT` - default(8000) - Server listed on
+- `PROXY_VERBOSE` - default(false) - More verbose mode
+- `PROXY_AUTH_USER` - default (null) - Basic auth
+- `PROXY_AUTH_PASSWORD` - default(null) - Basic auth
+- `PROXY_PROXYLIST` - default([]) - List of forward proxies
+
+## Development
+
+See [how to contribute](https://contributte.org/contributing.html) to this package.
+
+This package is currently maintaining by these authors.
+
+<a href="https://github.com/f3l1x">
+    <img width="80" height="80" src="https://avatars2.githubusercontent.com/u/538058?v=3&s=80">
+</a>
+
+-----
+
+Consider to [support](https://github.com/sponsors/f3l1x) **f3l1x**. Also thank you for using this package.

app/package.json

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+{
+  "dependencies": {
+    "proxy-chain": "2.3.0"
+  }
+}

app/server.js

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+const ProxyChain = require("proxy-chain");
+
+const CONFIG = {
+  PORT: process.env.PROXY_PORT || 8000,
+  VERBOSE: process.env.PROXY_VERBOSE || false,
+  AUTH_USER: process.env.PROXY_AUTH_USER || null,
+  AUTH_PASSWORD: process.env.PROXY_AUTH_PASSWORD || null,
+  PROXYLIST: Array.from((new String(process.env.PROXY_PROXYLIST || '')).split(/,|\||\n/)).filter(p => p),
+};
+
+if (CONFIG.PROXYLIST.length <= 0) {
+  console.error(`No PROXYLIST given. Example ENV.PROXYLIST=http://1.2.3.4:8080|http://5.6.7.8:8080`);
+  process.exit(255);
+}
+
+const server = new ProxyChain.Server({
+  port: CONFIG.PORT,
+  verbose: CONFIG.VERBOSE,
+  prepareRequestFunction: ({ username, password }) => {
+    const prepare = {
+      upstreamProxyUrl: CONFIG.PROXYLIST[Math.floor(Math.random() * CONFIG.PROXYLIST.length)],
+    };
+
+    if (CONFIG.AUTH_USER && CONFIG.AUTH_PASSWORD) {
+      prepare.requestAuthentication = username !== "bob" || password !== "TopSecret";
+    }
+
+    return prepare;
+  },
+});
+
+server.listen(() => {
+  console.log(`Proxy server is listening on port ${server.port}.`);
+  console.log(`List of proxies:`);
+  console.dir(CONFIG.PROXYLIST);
+});
+
+server.on("connectionClosed", ({ connectionId, stats }) => {
+  console.log(`Connection ${connectionId} closed`);
+  console.dir(stats);
+});
+
+server.on("requestFailed", ({ request, error }) => {
+  console.log(`Request ${request.url} failed`);
+  console.error(error);
+});

entrypoint.sh

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+#!/bin/bash
+set -Eeo pipefail
+
+node /srv/server.js