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ti-websocket-client.js
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var SHA1 = (function(){var exports={};/*
* Modified by Yuichiro MASUI <[email protected]>
* Tested on nodejs and Titanium Mobile
*
* The JavaScript implementation of the Secure Hash Algorithm 1
*
* Copyright (c) 2008 Takanori Ishikawa <[email protected]>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the authors nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* This is the javascript file for code which implements
* the Secure Hash Algorithm 1 as defined in FIPS 180-1 published April 17, 1995.
*
* Author: Takanori Ishikawa <[email protected]>
* Copyright: Takanori Ishikawa 2008
* License: BSD License (see above)
*
* NOTE:
* Only 8-bit string is supported, please use encodeURIComponent() function
* if you want to hash multibyte string.
*
* Supported Browsers:
* [Win] IE 6, Firefox 2
* [Mac] Safari 3, Firefox 2
*
* Usage:
* var hexdigest = new SHA1("Hello.").hexdigest(); // "9b56d519ccd9e1e5b2a725e186184cdc68de0731"
*
* See Also:
* FIPS 180-1 - Secure Hash Standard
* http://www.itl.nist.gov/fipspubs/fip180-1.htm
*
*/
var SHA1 = (function(){
/**
* Spec is the BDD style test utilities.
*/
var Spec;
Spec = {
/** Replace the Spec.describe function with empty function if false. */
enabled: true,
/** Indicates whether object 'a' is "equal to" 'b'. */
equals: function(a, b) {
var i;
if (a instanceof Array && b instanceof Array) {
if (a.length !== b.length) { return false; }
for (i = 0; i < a.length; i++) { if (!Spec.equals(a[i], b[i])) { return false; } }
return true;
}
if ((a !== null && b !== null) && (typeof a === "object" && typeof b === "object")) {
for (i in a) { if(a.hasOwnProperty(i)) { if (!Spec.equals(a[i], b[i])) { return false; } } }
return true;
}
return (a === b);
},
/** equivalent to xUint's assert */
should: function(expection, message) {
Spec.currentIndicator++;
if (!expection) {
var warning = [
"[Spec failed",
Spec.currentTitle ? " (" + Spec.currentTitle + ")] " : "] ",
(message || (Spec.currentMessage + " " + Spec.currentIndicator) || "")
].join("");
alert(warning);
throw warning;
}
return !!expection;
},
/** Write your specification by using describe method. */
describe: function(title, spec) {
Spec.currentTitle = title;
var name;
for (name in spec) {
if (spec.hasOwnProperty(name)) {
Spec.currentMessage = name;
Spec.currentIndicator = 0;
spec[name]();
Spec.currentIndicator = null;
}
}
Spec.currentMessage = Spec.currentTitle = null;
},
Version: "0.1"
};
// Other BDD style stuffs.
Spec.should.equal = function(a, b, message) { return Spec.should(Spec.equals(a, b), message); };
Spec.should.not = function(a, message) { return Spec.should(!a, message); };
Spec.should.not.equal = function(a, b, message) { return Spec.should(!Spec.equals(a, b), message); };
if (!Spec.enabled) { Spec.describe = function(){}; }
// self test
Spec.describe("Spec object", {
"should": function() {
Spec.should(true);
Spec.should(1);
},
"should.not": function() {
Spec.should.not(false);
Spec.should.not(0);
},
"should.equal": function() {
Spec.should.equal(null, null);
Spec.should.equal("", "");
Spec.should.equal(12345, 12345);
Spec.should.equal([0,1,2], [0,1,2]);
Spec.should.equal([0,1,[0,1,2]], [0,1,[0,1,2]]);
Spec.should.equal({}, {});
Spec.should.equal({x:1}, {x:1});
Spec.should.equal({x:[1]}, {x:[1]});
},
"should.not.equal": function() {
Spec.should.not.equal([1,2,3], [1,2,3,4]);
Spec.should.not.equal({x:1}, [1,2,3,4]);
}
});
// -----------------------------------------------------------
// Utilities
// -----------------------------------------------------------
// int32 -> hexdigits string (e.g. 0x123 -> '00000123')
function strfhex32(i32) {
i32 &= 0xffffffff;
if (i32 < 0) { i32 += 0x100000000; }
var hex = Number(i32).toString(16);
if (hex.length < 8) { hex = "00000000".substr(0, 8 - hex.length) + hex; }
return hex;
}
Spec.describe("sha1", {
"strfhex32": function() {
Spec.should.equal(strfhex32(0x0), "00000000");
Spec.should.equal(strfhex32(0x123), "00000123");
Spec.should.equal(strfhex32(0xffffffff), "ffffffff");
}
});
/*
// int32 -> string (e.g. 123 -> '00000000 00000000 00000000 01111011')
function strfbits(i32) {
if (typeof arguments.callee.ZERO32 === 'undefined') {
arguments.callee.ZERO32 = new Array(33).join("0");
}
var bits = Number(i32).toString(2);
// '0' padding
if (bits.length < 32) bits = arguments.callee.ZERO32.substr(0, 32 - bits.length) + bits;
// split by 8 bits
return bits.replace(/(¥d{8})/g, '$1 ')
.replace(/^¥s*(.*?)¥s*$/, '$1');
}
Spec.describe("sha1", {
"strfbits": function() {
Ti.API.info(strfbits(0));
Ti.API.info(strfbits(1));
Ti.API.info(strfbits(123));
Spec.should.equal(strfbits(0), "00000000 00000000 00000000 00000000");
Spec.should.equal(strfbits(1), "00000000 00000000 00000000 00000001");
Spec.should.equal(strfbits(123), "00000000 00000000 00000000 01111011");
}
});
*/
// -----------------------------------------------------------
// SHA-1
// -----------------------------------------------------------
// Returns Number(32bit unsigned integer) array size to fit for blocks (512-bit strings)
function padding_size(nbits) {
var n = nbits + 1 + 64;
return 512 * Math.ceil(n / 512) / 32;
}
Spec.describe("sha1", {
"padding_size": function() {
Spec.should.equal(padding_size(0), 16);
Spec.should.equal(padding_size(1), 16);
Spec.should.equal(padding_size(512 - 64 - 1), 16);
Spec.should.equal(padding_size(512 - 64), 32);
}
});
// 8bit string -> uint32[]
function word_array(m) {
var nchar = m.length;
var size = padding_size(nchar * 8);
var words = new Array(size);
var i;
for (i = 0, j = 0; i < nchar; ) {
words[j++] = ((m.charCodeAt(i++) & 0xff) << 24) |
((m.charCodeAt(i++) & 0xff) << 16) |
((m.charCodeAt(i++) & 0xff) << 8) |
((m.charCodeAt(i++) & 0xff));
}
while (j < size) { words[j++] = 0; }
return words;
}
Spec.describe("sha1", {
"word_array": function() {
Spec.should.equal(word_array(""), [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]);
Spec.should.equal(word_array("1234")[0], 0x31323334);
}
});
function write_nbits(words, length, nbits) {
if (nbits > 0xffffffff) {
var lo = nbits & 0xffffffff;
if (lo < 0) { lo += 0x100000000; }
words[length - 1] = lo;
words[length - 2] = (nbits - lo) / 0x100000000;
} else {
words[length - 1] = nbits;
words[length - 2] = 0x0;
}
return words;
}
Spec.describe("sha1", {
"write_nbits": function() {
Spec.should.equal(write_nbits([0, 0], 2, 1), [0, 1]);
Spec.should.equal(write_nbits([0, 0], 2, 0xffffffff), [0, 0xffffffff]);
Spec.should.equal(write_nbits([0, 0], 2, 0x100000000), [1, 0]);
Spec.should.equal(write_nbits([0, 0], 2, 0x1ffffffff), [1, 0xffffffff]);
Spec.should.equal(write_nbits([0, 0], 2, 0x12300000000), [0x123, 0]);
Spec.should.equal(write_nbits([0, 0], 2, 0x123abcdef12), [0x123, 0xabcdef12]);
}
});
function padding(words, nbits) {
var i = Math.floor(nbits / 32);
words[i] |= (1 << (((i + 1) * 32) - nbits - 1));
write_nbits(words, padding_size(nbits), nbits);
return words;
}
function digest(words) {
var i = 0, t = 0;
var H = [0x67452301, 0xEFCDAB89, 0x98BADCFE, 0x10325476, 0xC3D2E1F0];
while (i < words.length) {
var W = new Array(80);
// (a)
for (t = 0; t < 16; t++) { W[t] = words[i++]; }
// (b)
for (t = 16; t < 80; t++) {
var w = W[t - 3] ^ W[t - 8] ^ W[t - 14] ^ W[t - 16];
W[t] = (w << 1) | (w >>> 31);
}
// (c)
var A = H[0], B = H[1], C = H[2], D = H[3], E = H[4];
// (d) TEMP = S5(A) + ft(B,C,D) + E + Wt + Kt;
// E = D; D = C; C = S30(B); B = A; A = TEMP;
for (t = 0; t < 80; t++) {
var tmp = ((A << 5) | (A >>> 27)) + E + W[t];
if (t >= 0 && t <= 19) { tmp += ((B & C) | ((~B) & D)) + 0x5a827999; }
else if (t >= 20 && t <= 39) { tmp += (B ^ C ^ D) + 0x6ed9eba1; }
else if (t >= 40 && t <= 59) { tmp += ((B & C) | (B & D) | (C & D)) + 0x8f1bbcdc; }
else if (t >= 60 && t <= 79) { tmp += (B ^ C ^ D) + 0xca62c1d6; }
E = D; D = C; C = ((B << 30) | (B >>> 2)); B = A; A = tmp;
}
// (e) H0 = H0 + A, H1 = H1 + B, H2 = H2 + C, H3 = H3 + D, H4 = H4 + E.
H[0] = (H[0] + A) & 0xffffffff;
H[1] = (H[1] + B) & 0xffffffff;
H[2] = (H[2] + C) & 0xffffffff;
H[3] = (H[3] + D) & 0xffffffff;
H[4] = (H[4] + E) & 0xffffffff;
if (H[0] < 0) { H[0] += 0x100000000; }
if (H[1] < 0) { H[1] += 0x100000000; }
if (H[2] < 0) { H[2] += 0x100000000; }
if (H[3] < 0) { H[3] += 0x100000000; }
if (H[4] < 0) { H[4] += 0x100000000; }
}
return H;
}
// message: 8bit string
var SHA1 = function(message) {
this.message = message;
};
function strfhex8(i8) {
i8 &= 0xff;
if (i8 < 0) { i8 += 0x100; }
var hex = Number(i8).toString(16);
if (hex.length < 2) { hex = "00".substr(0, 2 - hex.length) + hex; }
return hex;
}
_base64_keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
SHA1.prototype = {
digest: function() {
var nbits = this.message.length * 8;
var words = padding(word_array(this.message), nbits);
return digest(words);
},
base64digest: function() {
var hex = this.hexdigest();
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
while (i < hex.length) {
chr1 = parseInt(hex.substring(i, i+2), 16);
chr2 = parseInt(hex.substring(i+2, i+4), 16);
chr3 = parseInt(hex.substring(i+4, i+6), 16);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output +
_base64_keyStr.charAt(enc1) + _base64_keyStr.charAt(enc2) +
_base64_keyStr.charAt(enc3) + _base64_keyStr.charAt(enc4);
i += 6;
}
return output;
},
hexdigest: function() {
var digest = this.digest();
var i;
for (i = 0; i < digest.length; i++) { digest[i] = strfhex32(digest[i]); }
return digest.join("");
}
};
Spec.describe("sha1", {
"SHA1#hexdigest": function() {
Spec.should.equal(new SHA1("").hexdigest(), "da39a3ee5e6b4b0d3255bfef95601890afd80709");
Spec.should.equal(new SHA1("1").hexdigest(), "356a192b7913b04c54574d18c28d46e6395428ab");
Spec.should.equal(new SHA1("Hello.").hexdigest(), "9b56d519ccd9e1e5b2a725e186184cdc68de0731");
Spec.should.equal(new SHA1("9b56d519ccd9e1e5b2a725e186184cdc68de0731").hexdigest(), "f042dc98a62cbad68dbe21f11bbc1e9d416d2bf6");
Spec.should.equal(new SHA1("MD5abZRVSXZVRcasdfasdddddddddddddddds+BNRJFSLKJFN+SEONBBJFJXLKCJFSE)RUNVXDLILKVJRN)#NVFJ)WVFWRW#)NVS$Q=$dddddddddddddWV;no9wurJFSE)RUNVXDLILKVJRN)#NVFJ)WVFWRW#)NVS$Q=$dddddddddddddWV;no9wurJFSE)RUNVXDLILKVJRN)#NVFJ)WVFWRW#)NVS$Q=$dddddddddddddWV;no9wurJFSE)RUNVXDLILKVJRN)#NVFJ)WVFWRW#)NVS$Q=$dddddddddddddWV;no9wuraddddddasdfasdfd").hexdigest(), "662dbf4ebc9cdb4224766e87634e5ba9e6de672b");
}
});
return SHA1;
}());
exports.SHA1 = SHA1; // add for node.js
return exports;}()).SHA1;
var Utils = (function(){var exports={};
exports.read_byte = function(buffer, position) {
var data = Ti.Codec.decodeNumber({
source: buffer,
position: position || 0,
type: Ti.Codec.TYPE_BYTE,
byteOrder: Ti.Codec.BIG_ENDIAN
});
if(data < 0) { data += 256; } //2**8;
return data;
};
exports.read_2byte = function(buffer, position) {
var data = Ti.Codec.decodeNumber({
source: buffer,
position: position || 0,
type: Ti.Codec.TYPE_SHORT,
byteOrder: Ti.Codec.BIG_ENDIAN
});
if(data < 0) { data += 65536; } // 2**16
return data;
};
exports.read_8byte = function(buffer, position) {
var data = Ti.Codec.decodeNumber({
source: buffer,
position: position || 0,
type: Ti.Codec.TYPE_LONG,
byteOrder: Ti.Codec.BIG_ENDIAN
});
if(data < 0) { data += 18446744073709551616; } // 2**64
return data;
};
exports.byte_length = function(str) {
var buffer = Ti.createBuffer({length: 65536});
var length = Ti.Codec.encodeString({
source: str,
dest: buffer
});
return length;
};
exports.trim = function(str) {
return String(str).replace(/^\s+|\s+$/g, "");
};
return exports;}());
var events = (function(){var exports={};// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
var isArray = Array.isArray;
function EventEmitter() { }
exports.EventEmitter = EventEmitter;
// By default EventEmitters will print a warning if more than
// 10 listeners are added to it. This is a useful default which
// helps finding memory leaks.
//
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
var defaultMaxListeners = 10;
EventEmitter.prototype.setMaxListeners = function(n) {
if (!this._events) { this._events = {}; }
this._maxListeners = n;
};
EventEmitter.prototype.emit = function() {
var type = arguments[0];
if (!this._events) { return false; }
var handler = this._events[type];
if (!handler) { return false; }
var args, l, i;
if (typeof handler === 'function') {
switch (arguments.length) {
// fast cases
case 1:
handler.call(this);
break;
case 2:
handler.call(this, arguments[1]);
break;
case 3:
handler.call(this, arguments[1], arguments[2]);
break;
// slower
default:
l = arguments.length;
args = new Array(l - 1);
for (i = 1; i < l; i++) { args[i - 1] = arguments[i]; }
handler.apply(this, args);
}
return true;
} else if (isArray(handler)) {
l = arguments.length;
args = new Array(l - 1);
for (i = 1; i < l; i++) { args[i - 1] = arguments[i]; }
var listeners = handler.slice();
for (i = 0, l = listeners.length; i < l; i++) {
listeners[i].apply(this, args);
}
return true;
} else {
return false;
}
};
// EventEmitter is defined in src/node_events.cc
// EventEmitter.prototype.emit() is also defined there.
EventEmitter.prototype.addListener = function(type, listener) {
if ('function' !== typeof listener) {
throw new Error('addListener only takes instances of Function');
}
if (!this._events) { this._events = {}; }
// To avoid recursion in the case that type === "newListeners"! Before
// adding it to the listeners, first emit "newListeners".
this.emit('newListener', type, listener);
if (!this._events[type]) {
// Optimize the case of one listener. Don't need the extra array object.
this._events[type] = listener;
} else if (isArray(this._events[type])) {
// If we've already got an array, just append.
this._events[type].push(listener);
// Check for listener leak
if (!this._events[type].warned) {
var m;
if (this._maxListeners !== undefined) {
m = this._maxListeners;
} else {
m = defaultMaxListeners;
}
if (m && m > 0 && this._events[type].length > m) {
this._events[type].warned = true;
console.error('(node) warning: possible EventEmitter memory ' +
'leak detected. %d listeners added. ' +
'Use emitter.setMaxListeners() to increase limit.',
this._events[type].length);
console.trace();
}
}
} else {
// Adding the second element, need to change to array.
this._events[type] = [this._events[type], listener];
}
return this;
};
EventEmitter.prototype.on = EventEmitter.prototype.addListener;
EventEmitter.prototype.once = function(type, listener) {
if ('function' !== typeof listener) {
throw new Error('.once only takes instances of Function');
}
var self = this;
function g() {
self.removeListener(type, g);
listener.apply(this, arguments);
}
g.listener = listener;
self.on(type, g);
return this;
};
EventEmitter.prototype.removeListener = function(type, listener) {
if ('function' !== typeof listener) {
throw new Error('removeListener only takes instances of Function');
}
// does not use listeners(), so no side effect of creating _events[type]
if (!this._events || !this._events[type]) { return this; }
var list = this._events[type];
if (isArray(list)) {
var i, position = -1;
for (i = 0, length = list.length; i < length; i++) {
if (list[i] === listener ||
(list[i].listener && list[i].listener === listener))
{
position = i;
break;
}
}
if (position < 0) { return this; }
list.splice(position, 1);
if (list.length === 0) {
delete this._events[type];
}
} else if (list === listener ||
(list.listener && list.listener === listener))
{
delete this._events[type];
}
return this;
};
EventEmitter.prototype.removeAllListeners = function(type) {
if (arguments.length === 0) {
this._events = {};
return this;
}
// does not use listeners(), so no side effect of creating _events[type]
if (type && this._events && this._events[type]) { this._events[type] = null; }
return this;
};
EventEmitter.prototype.listeners = function(type) {
if (!this._events) { this._events = {}; }
if (!this._events[type]) { this._events[type] = []; }
if (!isArray(this._events[type])) {
this._events[type] = [this._events[type]];
}
return this._events[type];
};
return exports;}());
var debug = function(str) {
Ti.API.debug(str);
};
var CONNECTING = 0;
var OPEN = 1;
var CLOSING = 2;
var CLOSED = 3;
var BUFFER_SIZE = 65536;
var CLOSING_TIMEOUT = 1000;
var WebSocket = function(url, protocols, origin, extensions) {
this.url = url;
if(!this._parse_url()) {
throw "Wrong url scheme for WebSocket: " + this.url;
}
this.origin = origin || String.format("http://%s:%s/", this._host, this._port);
this.protocols = protocols;
this.extensions = extensions;
this.readyState = CONNECTING;
this._masking_disabled = false;
this._headers = [];
this._pong_received = false;
this._readBuffer = '';
this._socketReadBuffer = undefined;
this._closingTimer = undefined;
this._handshake = undefined;
this._socket = undefined;
this._connect();
};
exports.WebSocket = WebSocket;
WebSocket.prototype = new events.EventEmitter();
WebSocket.prototype.onopen = function() {
// NO OP
};
WebSocket.prototype.onmessage = function() {
// NO OP
};
WebSocket.prototype.onerror = function() {
// NO OP
};
WebSocket.prototype.onclose = function() {
// NO OP
};
WebSocket.prototype._parse_url = function() {
var parsed = this.url.match(/^([a-z]+):\/\/([\w.]+)(:(\d+)|)(.*)/i);
if(!parsed || parsed[1] !== 'ws') {
return false;
}
this._host = parsed[2];
this._port = parsed[4] || 80;
this._path = parsed[5];
return true;
};
var make_handshake_key = function() {
var i, key = "";
for(i=0; i<16; ++i) {
key += String.fromCharCode(Math.random()*255+1);
}
return Utils.trim(Ti.Utils.base64encode(key));
};
var make_handshake = function(host, path, origin, protocols, extensions, handshake) {
str = "GET " + path + " HTTP/1.1\r\n";
str += "Host: " + host + "\r\nUpgrade: websocket\r\nConnection: Upgrade\r\n";
str += "Sec-WebSocket-Key: " + handshake + "\r\n";
str += "Origin: " + origin + "\r\n";
str += "Sec-WebSocket-Origin: " + origin + "\r\n";
str += "Sec-WebSocket-Version: 7\r\n";
if(protocols && protocols.length > 0) {
str += "Sec-WebSocket-Protocol: " + protocols.join(',') + "\r\n";
}
if(extensions && extensions.length > 0) {
str += "Sec-WebSocket-Extensions: " + extensions.join(',') + "\r\n";
}
// TODO: compression
//if @compression
// extensions << "deflate-application-data"
//end
return str + "\r\n";
};
WebSocket.prototype._send_handshake = function() {
this._handshake = make_handshake_key();
var handshake = make_handshake(this._host, this._path, this.origin, this.protocols, this.extensions, this._handshake);
return this._socket.write(Ti.createBuffer({ value: handshake })) > 0;
};
WebSocket.prototype._read_http_headers = function() {
var string = "";
var buffer = Ti.createBuffer({ length: BUFFER_SIZE });
var counter = 10;
while(true) {
var bytesRead = this._socket.read(buffer);
if(bytesRead > 0) {
var lastStringLen = string.length;
string += Ti.Codec.decodeString({
source: buffer,
charset: Ti.Codec.CHARSET_ASCII
});
var eoh = string.match(/\r\n\r\n/);
if(eoh) {
var offset = (eoh.index + 4) - lastStringLen;
string = string.substring(0, offset-2);
this.buffer = Ti.createBuffer({ length: BUFFER_SIZE });
this.bufferSize = bytesRead - offset;
this.buffer.copy(buffer, 0, offset, this.bufferSize);
break;
}
}
else {
debug("read_http_headers: timeout");
--counter;
if(counter < 0) {
return false; // Timeout
}
}
buffer.clear(); // clear the buffer before the next read
}
buffer.clear();
this.headers = string.split("\r\n");
return true;
};
var extract_headers = function(headers) {
var result = {};
headers.forEach(function(line) {
var index = line.indexOf(":");
if(index > 0) {
var key = Utils.trim(line.slice(0, index));
var value = Utils.trim(line.slice(index + 1));
result[key] = value;
}
});
return result;
};
var handshake_reponse = function(handshake) {
return (new SHA1(handshake + "258EAFA5-E914-47DA-95CA-C5AB0DC85B11")).base64digest();
};
WebSocket.prototype._check_handshake_response = function() {
var version = this.headers.shift();
if(version !== "HTTP/1.1 101 Switching Protocols") {
// Mismatch protocol version
debug("mismatch protocol version");
return false;
}
var h = extract_headers(this.headers);
if(!h.Upgrade || !h.Connection || !h['Sec-WebSocket-Accept']) {
return false;
}
if(h.Upgrade.toLowerCase() !== 'websocket' || h.Connection.toLowerCase() !== 'upgrade' || h['Sec-WebSocket-Accept'] !== handshake_reponse(this._handshake)) {
return false;
}
// TODO: compression
// if h.has_key?('Sec-WebSocket-Extensions') and h['Sec-WebSocket-Extensions'] === 'deflate-application-data'
// if @compression
// @zout = Zlib::Deflate.new(Zlib::BEST_SPEED, Zlib::MAX_WBITS, 8, 1)
// @zin = Zlib::Inflate.new
// end
// else
// @compression = false
// end
this.readyState = OPEN;
return true;
};
WebSocket.prototype._create_frame = function(opcode, d, last_frame) {
if(typeof last_frame === 'undefined') {
last_frame = true;
}
if(last_frame === false && opcode >= 0x8 && opcode <= 0xf) {
return false;
}
// apply per frame compression
var out = Ti.createBuffer({ length: BUFFER_SIZE });
var outIndex = 0;
var data = d || ''; //compress(d) // TODO
var byte1 = opcode;
if(last_frame) {
byte1 = byte1 | 0x80;
}
Ti.Codec.encodeNumber({
source: byte1,
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_BYTE,
});
var length = Utils.byte_length(data);
if(length <= 125) {
var byte2 = length;
if(!this._masking_disabled) {
byte2 = (byte2 | 0x80); // # set masking bit
}
Ti.Codec.encodeNumber({
source: byte2,
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_BYTE
});
}
else if(length < BUFFER_SIZE) { // # write 2 byte length
Ti.Codec.encodeNumber({
source: (126 | 0x80),
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_BYTE
});
Ti.Codec.encodeNumber({
source: length,
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_SHORT,
byteOrder: Ti.Codec.BIG_ENDIAN
});
outIndex += 2;
}
else { // # write 8 byte length
Ti.Codec.encodeNumber({
source: (127 | 0x80),
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_BYTE
});
Ti.Codec.encodeNumber({
source: length,
dest: out,
position: outIndex,
type: Ti.Codec.TYPE_LONG,
byteOrder: Ti.Codec.BIG_ENDIAN
});
outIndex += 8;
}
//# mask data
outIndex = this._mask_payload(out, outIndex, data);
out.length = outIndex;
return out;
};
WebSocket.prototype._mask_payload = function(out, outIndex, payload) {
if(!this._masking_disabled) {
var i, masking_key = [];
for(i = 0; i < 4; ++i) {
var key = Math.floor(Math.random()*255) & 0xff;
masking_key.push(key);
Ti.Codec.encodeNumber({
source: key,
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_BYTE
});
}
var buffer = Ti.createBuffer({ length: BUFFER_SIZE });
var length = Ti.Codec.encodeString({
source: payload,
dest: buffer
});
buffer.length = length;
var string = Ti.Codec.decodeString({
source: buffer,
charset: Ti.Codec.CHARSET_ASCII
});
var masked_string = "";
for(i = 0; i < string.length; ++i) {
Ti.Codec.encodeNumber({
source: string.charCodeAt(i) ^ masking_key[i % 4],
dest: out,
position: outIndex++,
type: Ti.Codec.TYPE_BYTE,
});
}
return outIndex;
}
else {
var len = Ti.Codec.encodeString({
source: payload,
dest: out,
destPosition: outIndex
});
return len + outIndex;
}
};
var parse_frame = function(buffer, size) {
if(size < 3) {
return undefined;
}
var byte1 = Utils.read_byte(buffer, 0);
var fin = !!(byte1 & 0x80);
var opcode = byte1 & 0x0f;
var byte2 = Utils.read_byte(buffer, 1);
var mask = !!(byte2 & 0x80);
var len = byte2 & 0x7f;
var offset = 2;
switch(len) {
case 126:
len = Utils.read_2byte(buffer, offset);
offset += 2;
break;
case 127:
// too large I felt
len = Utils.read_8byte(buffer, offset);
offset += 8;
break;
}
if(len + offset > size) {
return undefined;
}
var string = Ti.Codec.decodeString({
source: buffer,
position: offset,
length: len,
charset: Ti.Codec.CHARSET_UTF8
});
return({fin: fin, opcode: opcode, payload: string, size: len + offset});