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108 lines
4.1 KiB
108 lines
4.1 KiB
3 years ago
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proxy-agent
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===========
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### Maps proxy protocols to `http.Agent` implementations
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[](https://travis-ci.org/TooTallNate/node-proxy-agent)
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This module provides a function that returns proxying `http.Agent` instances to
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use based off of a given proxy URI. If no URI is provided, then
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[proxy-from-env](https://www.npmjs.com/package/proxy-from-env) is used to get the URI
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from `$HTTP_PROXY`, `$HTTPS_PROXY` and `$NO_PROXY` among others.
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An LRU cache is used so that `http.Agent` instances are transparently re-used for
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subsequent HTTP requests to the same proxy server.
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The currently implemented protocol mappings are listed in the table below:
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| Protocol | Proxy Agent for `http` requests | Proxy Agent for `https` requests | Example
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|:----------:|:-------------------------------:|:--------------------------------:|:--------:
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| `http` | [http-proxy-agent][] | [https-proxy-agent][] | `http://proxy-server-over-tcp.com:3128`
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| `https` | [http-proxy-agent][] | [https-proxy-agent][] | `https://proxy-server-over-tls.com:3129`
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| `socks(v5)`| [socks-proxy-agent][] | [socks-proxy-agent][] | `socks://username:password@some-socks-proxy.com:9050` (username & password are optional)
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| `socks5` | [socks-proxy-agent][] | [socks-proxy-agent][] | `socks5://username:password@some-socks-proxy.com:9050` (username & password are optional)
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| `socks4` | [socks-proxy-agent][] | [socks-proxy-agent][] | `socks4://some-socks-proxy.com:9050`
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| `pac` | [pac-proxy-agent][] | [pac-proxy-agent][] | `pac+http://www.example.com/proxy.pac`
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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 proxy-agent
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```
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Example
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-------
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``` js
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var http = require('http');
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var ProxyAgent = require('proxy-agent');
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// HTTP, HTTPS, or SOCKS proxy to use
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var proxyUri = process.env.http_proxy || 'http://168.63.43.102:3128';
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var opts = {
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method: 'GET',
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host: 'jsonip.org',
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path: '/',
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// this is the important part!
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// If no proxyUri is specified, then https://www.npmjs.com/package/proxy-from-env
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// is used to get the proxyUri.
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agent: new ProxyAgent(proxyUri)
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};
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// the rest works just like any other normal HTTP request
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http.get(opts, onresponse);
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function onresponse (res) {
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console.log(res.statusCode, res.headers);
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res.pipe(process.stdout);
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}
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```
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API
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---
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### new ProxyAgent(Object|String opts|uri)
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Returns an `http.Agent` instance based off of the given proxy `opts` or URI
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string. An LRU cache is used, so the same `http.Agent` instance will be
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returned if identical args are passed in.
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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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[http-proxy-agent]: https://github.com/TooTallNate/node-http-proxy-agent
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[https-proxy-agent]: https://github.com/TooTallNate/node-https-proxy-agent
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[socks-proxy-agent]: https://github.com/TooTallNate/node-socks-proxy-agent
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[pac-proxy-agent]: https://github.com/TooTallNate/node-pac-proxy-agent
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