mirror of
https://github.com/http-party/node-http-proxy.git
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109 lines
2.7 KiB
JavaScript
109 lines
2.7 KiB
JavaScript
var httpProxy = exports,
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extend = require('util')._extend,
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parse_url = require('url').parse,
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EE3 = require('eventemitter3').EventEmitter,
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web = require('./passes/web-incoming'),
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ws = require('./passes/ws-incoming');
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httpProxy.createWebProxy = createRightProxy('web');
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httpProxy.createWsProxy = createRightProxy('ws');
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httpProxy.Server = ProxyServer;
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/**
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* Returns a function that creates the loader for
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* either `ws` or `web`'s passes.
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*
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* Examples:
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*
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* httpProxy.createRightProxy('ws')
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* // => [Function]
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*
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* @param {String} Type Either 'ws' or 'web'
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*
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* @return {Function} Loader Function that when called returns an iterator for the right passes
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*
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* @api private
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*/
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function createRightProxy(type) {
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var passes = (type === 'ws') ? ws : web;
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return function(options) {
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passes = Object.keys(passes).map(function(pass) {
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return passes[pass];
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});
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return function(req, res /*, [head], [opts] */) {
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var self = this,
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args = [].slice.call(arguments),
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cntr = args.length - 1,
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head;
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if(
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!(args[cntr] instanceof Buffer) &&
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args[cntr] !== res
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) {
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//Copy global options
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options = extend({}, options);
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//Overwrite with request options
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extend(options, args[cntr]);
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cntr--;
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}
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if(args[cntr] instanceof Buffer) {
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head = args[cntr];
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}
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['target', 'forward'].forEach(function(e) {
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if (typeof options[e] === 'string')
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options[e] = parse_url(options[e]);
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});
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for(var i=0; i < passes.length; i++) {
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/**
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* Call of passes functions
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* pass(req, res, options, head)
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*
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* In WebSockets case the `res` variable
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* refer to the connection socket
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* pass(req, socket, options, head)
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*/
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if(passes[i](req, res, this, head)) { // passes can return a truthy value to halt the loop
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break;
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}
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}
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};
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};
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}
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function ProxyServer(options, web, ws) {
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this.web = web;
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this.ws = ws;
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this.options = options;
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}
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ProxyServer.prototype.listen = function(port) {
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var self = this,
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closure = function(req, res) { self.web(req, res); },
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this._server = options.ssl ?
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https.createServer(this.options.ssl, closure) :
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http.createServer(closure);
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if(options.ws) {
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this._server.on('upgrade', function(req, socket, head) { self.ws(req, socket, head); });
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}
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this._server.listen(port);
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return this;
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};
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ProxyServer.prototype.before = function() {};
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ProxyServer.prototype.after = function() {};
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require('util').inherits(ProxyServer, EE3);
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