526 lines
12 KiB
JavaScript
526 lines
12 KiB
JavaScript
var CC = Components.Constructor;
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const ServerSocket = CC("@mozilla.org/network/server-socket;1",
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"nsIServerSocket",
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"init");
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const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
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"nsIBinaryInputStream",
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"setInputStream");
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const DirectoryService = CC("@mozilla.org/file/directory_service;1",
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"nsIProperties");
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const Process = CC("@mozilla.org/process/util;1", "nsIProcess", "init");
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const currentThread = Cc["@mozilla.org/thread-manager;1"]
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.getService().currentThread;
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var socks_test_server = null;
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var socks_listen_port = -1;
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function getAvailableBytes(input)
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{
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var len = 0;
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try {
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len = input.available();
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} catch (e) {
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}
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return len;
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}
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function runScriptSubprocess(script, args)
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{
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var ds = new DirectoryService();
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var bin = ds.get("XREExeF", Ci.nsILocalFile);
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if (!bin.exists()) {
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do_throw("Can't find xpcshell binary");
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}
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var script = do_get_file(script);
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var proc = new Process(bin);
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var args = [script.path].concat(args);
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proc.run(false, args, args.length);
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return proc;
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}
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function buf2ip(buf)
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{
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if (buf.length == 16) {
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var ip = (buf[0] << 4 | buf[1]).toString(16) + ':' +
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(buf[2] << 4 | buf[3]).toString(16) + ':' +
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(buf[4] << 4 | buf[5]).toString(16) + ':' +
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(buf[6] << 4 | buf[7]).toString(16) + ':' +
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(buf[8] << 4 | buf[9]).toString(16) + ':' +
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(buf[10] << 4 | buf[11]).toString(16) + ':' +
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(buf[12] << 4 | buf[13]).toString(16) + ':' +
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(buf[14] << 4 | buf[15]).toString(16);
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for (var i = 8; i >= 2; i--) {
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var re = new RegExp("(^|:)(0(:|$)){" + i + "}");
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var shortip = ip.replace(re, '::');
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if (shortip != ip) {
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return shortip;
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}
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}
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return ip;
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} else {
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return buf.join('.');
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}
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}
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function buf2int(buf)
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{
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var n = 0;
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for (var i in buf) {
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n |= buf[i] << ((buf.length - i - 1) * 8);
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}
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return n;
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}
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function buf2str(buf)
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{
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return String.fromCharCode.apply(null, buf);
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}
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const STATE_WAIT_GREETING = 1;
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const STATE_WAIT_SOCKS4_REQUEST = 2;
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const STATE_WAIT_SOCKS4_USERNAME = 3;
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const STATE_WAIT_SOCKS4_HOSTNAME = 4;
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const STATE_WAIT_SOCKS5_GREETING = 5;
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const STATE_WAIT_SOCKS5_REQUEST = 6;
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const STATE_WAIT_PONG = 7;
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const STATE_GOT_PONG = 8;
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function SocksClient(server, client_in, client_out)
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{
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this.server = server;
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this.type = '';
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this.username = '';
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this.dest_name = '';
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this.dest_addr = [];
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this.dest_port = [];
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this.client_in = client_in;
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this.client_out = client_out;
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this.inbuf = [];
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this.outbuf = String();
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this.state = STATE_WAIT_GREETING;
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this.waitRead(this.client_in);
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}
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SocksClient.prototype = {
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onInputStreamReady: function(input)
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{
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var len = getAvailableBytes(input);
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if (len == 0) {
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print('server: client closed!');
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do_check_eq(this.state, STATE_GOT_PONG);
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this.server.testCompleted(this);
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return;
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}
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var bin = new BinaryInputStream(input);
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var data = bin.readByteArray(len);
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this.inbuf = this.inbuf.concat(data);
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switch (this.state) {
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case STATE_WAIT_GREETING:
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this.checkSocksGreeting();
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break;
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case STATE_WAIT_SOCKS4_REQUEST:
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this.checkSocks4Request();
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break;
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case STATE_WAIT_SOCKS4_USERNAME:
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this.checkSocks4Username();
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break;
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case STATE_WAIT_SOCKS4_HOSTNAME:
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this.checkSocks4Hostname();
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break;
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case STATE_WAIT_SOCKS5_GREETING:
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this.checkSocks5Greeting();
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break;
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case STATE_WAIT_SOCKS5_REQUEST:
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this.checkSocks5Request();
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break;
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case STATE_WAIT_PONG:
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this.checkPong();
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break;
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default:
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do_throw("server: read in invalid state!");
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}
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this.waitRead(input);
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},
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onOutputStreamReady: function(output)
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{
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var len = output.write(this.outbuf, this.outbuf.length);
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if (len != this.outbuf.length) {
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this.outbuf = this.outbuf.substring(len);
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this.waitWrite(output);
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} else
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this.outbuf = String();
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},
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waitRead: function(input)
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{
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input.asyncWait(this, 0, 0, currentThread);
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},
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waitWrite: function(output)
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{
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output.asyncWait(this, 0, 0, currentThread);
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},
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write: function(buf)
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{
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this.outbuf += buf;
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this.waitWrite(this.client_out);
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},
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checkSocksGreeting: function()
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{
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if (this.inbuf.length == 0)
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return;
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if (this.inbuf[0] == 4) {
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print('server: got socks 4');
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this.type = 'socks4';
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this.state = STATE_WAIT_SOCKS4_REQUEST;
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this.checkSocks4Request();
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} else if (this.inbuf[0] == 5) {
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print('server: got socks 5');
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this.type = 'socks';
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this.state = STATE_WAIT_SOCKS5_GREETING;
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this.checkSocks5Greeting();
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} else {
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do_throw("Unknown socks protocol!");
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}
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},
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checkSocks4Request: function()
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{
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if (this.inbuf.length < 8)
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return;
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do_check_eq(this.inbuf[1], 0x01);
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this.dest_port = this.inbuf.slice(2, 4);
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this.dest_addr = this.inbuf.slice(4, 8);
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this.inbuf = this.inbuf.slice(8);
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this.state = STATE_WAIT_SOCKS4_USERNAME;
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this.checkSocks4Username();
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},
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readString: function()
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{
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var i = this.inbuf.indexOf(0);
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var str = null;
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if (i >= 0) {
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var buf = this.inbuf.slice(0,i);
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str = buf2str(buf);
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this.inbuf = this.inbuf.slice(i+1);
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}
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return str;
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},
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checkSocks4Username: function()
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{
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var str = this.readString();
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if (str == null)
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return;
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this.username = str;
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if (this.dest_addr[0] == 0 &&
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this.dest_addr[1] == 0 &&
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this.dest_addr[2] == 0 &&
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this.dest_addr[3] != 0) {
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this.state = STATE_WAIT_SOCKS4_HOSTNAME;
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this.checkSocks4Hostname();
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} else {
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this.sendSocks4Response();
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}
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},
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checkSocks4Hostname: function()
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{
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var str = this.readString();
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if (str == null)
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return;
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this.dest_name = str;
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this.sendSocks4Response();
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},
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sendSocks4Response: function()
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{
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this.outbuf = '\x00\x5a\x00\x00\x00\x00\x00\x00';
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this.sendPing();
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},
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checkSocks5Greeting: function()
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{
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if (this.inbuf.length < 2)
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return;
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var nmethods = this.inbuf[1];
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if (this.inbuf.length < 2 + nmethods)
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return;
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do_check_true(nmethods >= 1);
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var methods = this.inbuf.slice(2, 2 + nmethods);
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do_check_true(0 in methods);
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this.inbuf = [];
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this.state = STATE_WAIT_SOCKS5_REQUEST;
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this.write('\x05\x00');
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},
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checkSocks5Request: function()
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{
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if (this.inbuf.length < 4)
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return;
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do_check_eq(this.inbuf[0], 0x05);
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do_check_eq(this.inbuf[1], 0x01);
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do_check_eq(this.inbuf[2], 0x00);
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var atype = this.inbuf[3];
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var len;
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var name = false;
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switch (atype) {
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case 0x01:
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len = 4;
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break;
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case 0x03:
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len = this.inbuf[4];
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name = true;
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break;
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case 0x04:
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len = 16;
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break;
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default:
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do_throw("Unknown address type " + atype);
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}
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if (name) {
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if (this.inbuf.length < 4 + len + 1 + 2)
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return;
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buf = this.inbuf.slice(5, 5 + len);
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this.dest_name = buf2str(buf);
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len += 1;
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} else {
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if (this.inbuf.length < 4 + len + 2)
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return;
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this.dest_addr = this.inbuf.slice(4, 4 + len);
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}
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len += 4;
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this.dest_port = this.inbuf.slice(len, len + 2);
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this.inbuf = this.inbuf.slice(len + 2);
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this.sendSocks5Response();
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},
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sendSocks5Response: function()
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{
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if (this.dest_addr.length == 16) {
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// send a successful response with the address, [::1]:80
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this.outbuf += '\x05\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x80';
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} else {
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// send a successful response with the address, 127.0.0.1:80
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this.outbuf += '\x05\x00\x00\x01\x7f\x00\x00\x01\x00\x80';
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}
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this.sendPing();
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},
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sendPing: function()
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{
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print('server: sending ping');
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this.state = STATE_WAIT_PONG;
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this.outbuf += "PING!";
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this.inbuf = [];
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this.waitWrite(this.client_out);
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this.waitRead(this.client_in);
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},
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checkPong: function()
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{
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var pong = buf2str(this.inbuf);
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do_check_eq(pong, "PONG!");
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this.state = STATE_GOT_PONG;
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this.waitRead(this.client_in);
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},
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close: function()
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{
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this.client_in.close();
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this.client_out.close();
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}
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};
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function SocksTestServer()
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{
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this.listener = ServerSocket(-1, true, -1);
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socks_listen_port = this.listener.port;
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print('server: listening on', socks_listen_port);
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this.listener.asyncListen(this);
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this.test_cases = [];
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this.client_connections = [];
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this.client_subprocess = null;
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// port is used as the ID for test cases
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this.test_port_id = 8000;
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this.tests_completed = 0;
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}
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SocksTestServer.prototype = {
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addTestCase: function(test)
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{
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test.finished = false;
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test.port = this.test_port_id++;
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this.test_cases.push(test);
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},
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pickTest: function(id)
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{
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for (var i in this.test_cases) {
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var test = this.test_cases[i];
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if (test.port == id) {
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this.tests_completed++;
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return test;
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}
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}
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do_throw("No test case with id " + id);
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},
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testCompleted: function(client)
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{
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var port_id = buf2int(client.dest_port);
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var test = this.pickTest(port_id);
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print('server: test finished', test.port);
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do_check_true(test != null);
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do_check_eq(test.expectedType || test.type, client.type);
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do_check_eq(test.port, port_id);
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if (test.remote_dns)
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do_check_eq(test.host, client.dest_name);
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else
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do_check_eq(test.host, buf2ip(client.dest_addr));
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if (this.test_cases.length == this.tests_completed) {
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print('server: all tests completed');
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this.close();
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do_test_finished();
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}
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},
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runClientSubprocess: function()
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{
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var argv = [];
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// marshaled: socks_ver|server_port|dest_host|dest_port|<remote|local>
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for (var test of this.test_cases) {
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var arg = test.type + '|' +
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String(socks_listen_port) + '|' +
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test.host + '|' + test.port + '|';
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if (test.remote_dns)
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arg += 'remote';
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else
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arg += 'local';
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print('server: using test case', arg);
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argv.push(arg);
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}
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this.client_subprocess = runScriptSubprocess(
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'socks_client_subprocess.js', argv);
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},
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onSocketAccepted: function(socket, trans)
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{
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print('server: got client connection');
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var input = trans.openInputStream(0, 0, 0);
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var output = trans.openOutputStream(0, 0, 0);
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var client = new SocksClient(this, input, output);
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this.client_connections.push(client);
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},
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onStopListening: function(socket)
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{
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},
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close: function()
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{
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if (this.client_subprocess) {
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try {
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this.client_subprocess.kill();
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} catch (x) {
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do_note_exception(x, 'Killing subprocess failed');
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}
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this.client_subprocess = null;
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}
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for (var client of this.client_connections)
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client.close();
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this.client_connections = [];
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if (this.listener) {
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this.listener.close();
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this.listener = null;
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}
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}
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};
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function test_timeout()
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{
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socks_test_server.close();
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do_throw("SOCKS test took too long!");
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}
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function run_test()
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{
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socks_test_server = new SocksTestServer();
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socks_test_server.addTestCase({
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type: "socks4",
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host: '127.0.0.1',
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remote_dns: false,
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});
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socks_test_server.addTestCase({
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type: "socks4",
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host: '12345.xxx',
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remote_dns: true,
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});
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socks_test_server.addTestCase({
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type: "socks4",
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expectedType: "socks",
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host: '::1',
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remote_dns: false,
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});
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socks_test_server.addTestCase({
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type: "socks",
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host: '127.0.0.1',
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remote_dns: false,
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});
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socks_test_server.addTestCase({
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type: "socks",
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host: 'abcdefg.xxx',
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remote_dns: true,
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});
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socks_test_server.addTestCase({
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type: "socks",
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host: '::1',
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remote_dns: false,
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});
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socks_test_server.runClientSubprocess();
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do_timeout(120 * 1000, test_timeout);
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do_test_pending();
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}
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