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138 lines
4.6 KiB
Markdown
138 lines
4.6 KiB
Markdown
https-proxy-agent
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================
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### An HTTP(s) proxy `http.Agent` implementation for HTTPS
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[](https://github.com/TooTallNate/node-https-proxy-agent/actions?workflow=Node+CI)
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This module provides an `http.Agent` implementation that connects to a specified
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HTTP or HTTPS proxy server, and can be used with the built-in `https` module.
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Specifically, this `Agent` implementation connects to an intermediary "proxy"
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server and issues the [CONNECT HTTP method][CONNECT], which tells the proxy to
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open a direct TCP connection to the destination server.
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Since this agent implements the CONNECT HTTP method, it also works with other
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protocols that use this method when connecting over proxies (i.e. WebSockets).
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See the "Examples" section below for more.
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Installation
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------------
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Install with `npm`:
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``` bash
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$ npm install https-proxy-agent
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```
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Examples
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--------
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#### `https` module example
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``` js
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var url = require('url');
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var https = require('https');
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var HttpsProxyAgent = require('https-proxy-agent');
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// HTTP/HTTPS proxy to connect to
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var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
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console.log('using proxy server %j', proxy);
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// HTTPS endpoint for the proxy to connect to
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var endpoint = process.argv[2] || 'https://graph.facebook.com/tootallnate';
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console.log('attempting to GET %j', endpoint);
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var options = url.parse(endpoint);
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// create an instance of the `HttpsProxyAgent` class with the proxy server information
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var agent = new HttpsProxyAgent(proxy);
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options.agent = agent;
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https.get(options, function (res) {
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console.log('"response" event!', res.headers);
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res.pipe(process.stdout);
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});
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```
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#### `ws` WebSocket connection example
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``` js
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var url = require('url');
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var WebSocket = require('ws');
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var HttpsProxyAgent = require('https-proxy-agent');
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// HTTP/HTTPS proxy to connect to
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var proxy = process.env.http_proxy || 'http://168.63.76.32:3128';
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console.log('using proxy server %j', proxy);
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// WebSocket endpoint for the proxy to connect to
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var endpoint = process.argv[2] || 'ws://echo.websocket.org';
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var parsed = url.parse(endpoint);
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console.log('attempting to connect to WebSocket %j', endpoint);
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// create an instance of the `HttpsProxyAgent` class with the proxy server information
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var options = url.parse(proxy);
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var agent = new HttpsProxyAgent(options);
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// finally, initiate the WebSocket connection
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var socket = new WebSocket(endpoint, { agent: agent });
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socket.on('open', function () {
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console.log('"open" event!');
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socket.send('hello world');
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});
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socket.on('message', function (data, flags) {
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console.log('"message" event! %j %j', data, flags);
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socket.close();
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});
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```
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API
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---
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### new HttpsProxyAgent(Object options)
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The `HttpsProxyAgent` class implements an `http.Agent` subclass that connects
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to the specified "HTTP(s) proxy server" in order to proxy HTTPS and/or WebSocket
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requests. This is achieved by using the [HTTP `CONNECT` method][CONNECT].
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The `options` argument may either be a string URI of the proxy server to use, or an
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"options" object with more specific properties:
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* `host` - String - Proxy host to connect to (may use `hostname` as well). Required.
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* `port` - Number - Proxy port to connect to. Required.
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* `protocol` - String - If `https:`, then use TLS to connect to the proxy.
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* `headers` - Object - Additional HTTP headers to be sent on the HTTP CONNECT method.
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* Any other options given are passed to the `net.connect()`/`tls.connect()` functions.
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License
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-------
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(The MIT License)
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Copyright (c) 2013 Nathan Rajlich <nathan@tootallnate.net>
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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'Software'), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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[CONNECT]: http://en.wikipedia.org/wiki/HTTP_tunnel#HTTP_CONNECT_Tunneling
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