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websocket.js
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// Total.js WebSocket
// The MIT License
// Copyright 2016-2023 (c) Peter Širka <[email protected]> & Jozef Gula <[email protected]>
const SOCKET_RESPONSE = 'HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: {0}\r\n\r\n';
const SOCKET_RESPONSE_COMPRESS = 'HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: {0}\r\nSec-WebSocket-Extensions: permessage-deflate\r\n\r\n';
const SOCKET_RESPONSE_PROTOCOL = 'HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: {0}\r\nSec-WebSocket-Protocol: {1}\r\n\r\n';
const SOCKET_RESPONSE_PROTOCOL_COMPRESS = 'HTTP/1.1 101 Switching Protocols\r\nUpgrade: websocket\r\nConnection: Upgrade\r\nSec-WebSocket-Accept: {0}\r\nSec-WebSocket-Protocol: {1}\r\nSec-WebSocket-Extensions: permessage-deflate\r\n\r\n';
const SOCKET_HASH = '258EAFA5-E914-47DA-95CA-C5AB0DC85B11';
const SOCKET_ALLOW_VERSION = ['13'];
const SOCKET_COMPRESS = Buffer.from([0x00, 0x00, 0xFF, 0xFF]);
const SOCKET_COMPRESS_OPTIONS = { windowBits: F.Zlib.Z_DEFAULT_WINDOWBITS };
const CACHE_GML1 = [null, null, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00];
const CACHE_GML2 = [null, null, null, null, null, null, null, null];
const CONCAT = [null, null];
const REG_WEBSOCKET = /websocket/i;
const REG_WEBSOCKET_ERROR = /ECONNRESET|EHOSTUNREACH|EPIPE|is closed/i;
const REG_EMPTYBUFFER = /\0|%00|\\u0000/g;
const REG_EMPTYBUFFER_TEST = /\0|%00|\\u0000/;
const REG_ROBOT = /search|agent|bot|crawler|spider/i;
const REG_MOBILE = /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini|Mobile|Tablet/i;
var WSCLIENTSID = 0;
// WSClient
var CALLBACKS = {};
var CALLBACKSCOUNTER = 1;
function Controller(req, socket, head) {
var ctrl = this;
ctrl.req = req;
ctrl.method = 'SOCKET';
ctrl.res = ctrl.socket = socket;
ctrl.route = null;
ctrl.head = head;
ctrl.uri = F.TUtils.parseURI2(req.url);
ctrl.headers = req.headers;
ctrl.query = ctrl.uri.search.parseEncoded();
ctrl.split = ctrl.uri.split;
ctrl.split2 = [];
ctrl.url = ctrl.uri.key;
ctrl.released = false;
ctrl.params = {};
ctrl.current = {};
ctrl.masking = false;
ctrl.iswebsocket = true;
ctrl.protocol = req.connection.encrypted || req.headers['x-forwarded-ssl'] === 'on' || req.headers['x-forwarded-port'] === '443' || (req.headers['x-forwarded-proto'] || req.headers['x-forwarded-protocol']) === 'https' ? 'https' : 'http';
for (let path of ctrl.split)
ctrl.split2.push(path.toLowerCase());
ctrl.datatype = 'json'; // json|text|binary
}
Controller.prototype = {
get mobile() {
let ua = this.headers['user-agent'];
return ua ? REG_MOBILE.test(ua) : false;
},
get robot() {
let ua = this.headers['user-agent'];
return ua ? REG_ROBOT.test(ua) : false;
},
get ua() {
if (this.$ua != null)
return this.$ua;
this.$ua = this.headers['user-agent'] || '';
if (this.$ua)
this.$ua = this.$ua.parseUA();
return this.$ua;
},
get ip() {
if (this.$ip != null)
return this.$ip;
// x-forwarded-for: client, proxy1, proxy2, ...
let proxy = this.headers['x-forwarded-for'];
if (proxy)
this.$ip = proxy.split(',', 1)[0] || this.req.connection.remoteAddress;
else if (!this.$ip)
this.$ip = this.req.connection.remoteAddress;
return this.$ip;
},
get referrer() {
return this.headers.referer;
},
get host() {
return this.headers.host;
},
get address() {
return (this.protocol + '://' + this.headers?.host || '') + (this.req?.url || '');
}
};
Controller.prototype.upgrade = function(websocket) {
var ctrl = this;
F.stats.performance.online++;
ctrl.parent = websocket;
ctrl.socket.$controller = this;
ctrl.req.on('abort', websocket_onerror);
ctrl.req.on('aborted', websocket_onerror);
ctrl.req.on('error', websocket_onerror);
ctrl.socket.on('data', websocket_ondata);
ctrl.socket.on('error', websocket_onerror);
ctrl.socket.on('close', websocket_close);
ctrl.socket.on('end', websocket_close);
ctrl.parent.add(ctrl);
websocket.online++;
// Deprecated:
// F.$events.websocket_begin && F.emit('websocket_begin', ctrl.parent, ctrl);
if (F.$events.websocket) {
/*
@Path: Framework
@Event: ON('websocket', function(ctrl) { ... }); #ctrl {Controller};
The event captures all incoming WebSocket connections. The next processing __can't be__ canceled via the `ctrl.cancel()` method.
*/
F.emit('websocket', ctrl);
}
ctrl.parent.$events.open && ctrl.parent.emit('open', ctrl);
};
// Readonly
Controller.prototype.cookie = function(name) {
var ctrl = this;
var arr;
if (ctrl.cookies)
return F.TUtils.decodeURIComponent(ctrl.cookies[name] || '');
var cookie = ctrl.headers.cookie;
if (!cookie) {
ctrl.cookies = F.EMPTYOBJECT;
return '';
}
ctrl.cookies = {};
arr = cookie.split(';');
for (let i = 0; i < arr.length; i++) {
let line = arr[i].trim();
let index = line.indexOf('=');
if (index !== -1)
ctrl.cookies[line.substring(0, index)] = line.substring(index + 1);
}
return name ? F.TUtils.decodeURIComponent(ctrl.cookies[name] || '') : '';
};
function websocket_ondata(chunk) {
this.$controller.ondata(chunk);
}
function websocket_onerror(e) {
this.destroy && this.destroy();
this.$controller && this.$controller.onerror(e);
}
function websocket_close() {
this.$controller && this.$controller.onclose();
this.destroy && this.destroy();
}
Controller.prototype.destroy = function() {
var ctrl = this;
ctrl.socket.destroy();
ctrl.req.destroy();
F.TUtils.destroystream(ctrl.socket);
F.TUtils.destroystream(ctrl.req);
};
Controller.prototype.onerror = function(err) {
var ctrl = this;
if (ctrl.isclosed)
return;
if (REG_WEBSOCKET_ERROR.test(err.stack)) {
ctrl.isclosed = true;
ctrl.onclose();
} else
ctrl.parent.$events.error && ctrl.parent.emit('error', err, ctrl);
};
Controller.prototype.onclose = function() {
var ctrl = this;
if (ctrl.isclosed2)
return;
F.stats.performance.online--;
ctrl.isclosed = true;
ctrl.isclosed2 = true;
if (ctrl.inflate) {
ctrl.inflate.removeAllListeners();
delete ctrl.inflate;
delete ctrl.inflatechunks;
}
if (ctrl.deflate) {
ctrl.deflate.removeAllListeners();
delete ctrl.deflate;
delete ctrl.deflatechunks;
}
delete ctrl.parent.connections[ctrl.ID];
ctrl.parent.online--;
ctrl.parent.$events.close && ctrl.parent.emit('close', ctrl, ctrl.closecode, ctrl.closemessage);
ctrl.socket.removeAllListeners();
F.$events.websocket_end && EMIT('websocket_end', ctrl.parent, ctrl);
};
Controller.prototype.ondata = function(data) {
var ctrl = this;
var current = ctrl.current;
if (data) {
if (current.buffer) {
CONCAT[0] = current.buffer;
CONCAT[1] = data;
current.buffer = Buffer.concat(CONCAT);
} else
current.buffer = data;
}
if (!ctrl.parse())
return;
if (!current.final && current.type !== 0x00)
current.type2 = current.type;
var decompress = current.compressed && ctrl.inflate;
switch (current.type === 0x00 ? current.type2 : current.type) {
case 0x01:
// text
if (decompress) {
current.final && ctrl.parseinflate();
} else {
if (current.body) {
CONCAT[0] = current.body;
CONCAT[1] = current.data;
current.body = Buffer.concat(CONCAT);
} else
current.body = current.data;
current.final && ctrl.decode();
}
break;
case 0x02:
// binary
if (decompress) {
current.final && ctrl.parseinflate();
} else {
if (current.body) {
CONCAT[0] = current.body;
CONCAT[1] = current.data;
current.body = Buffer.concat(CONCAT);
} else
current.body = current.data;
current.final && ctrl.decode();
}
break;
case 0x08:
// close
if (current.data) {
ctrl.closemessage = current.data.slice(2).toString('utf8');
ctrl.closecode = current.data[0] << 8 | current.data[1];
}
if (ctrl.closemessage && ctrl.parent.encodedecode)
ctrl.closemessage = F.TUtils.decodeURIComponent(ctrl.closemessage);
ctrl.close();
current.buffer = null;
current.inflatedata = null;
return;
case 0x09:
// ping, response pong
ctrl.socket.write(getWebSocketFrame(0, 'PONG', 0x0A, false, ctrl.masking));
current.buffer = null;
current.inflatedata = null;
break;
case 0x0a:
// pong
ctrl.latency = Date.now() - ctrl.$ping;
current.buffer = null;
current.inflatedata = null;
break;
}
if (current.buffer) {
current.buffer = current.buffer.slice(current.length, current.buffer.length);
current.buffer.length && setImmediate(ctrl.ondata2);
}
};
// MIT
// Written by Jozef Gula
// Optimized by Peter Sirka
Controller.prototype.parse = function() {
var ctrl = this;
var current = ctrl.current;
// Fixed a problem with parsing of long messages, the code bellow 0x80 still returns 0 when the message is longer
// if (!current.buffer || current.buffer.length <= 2 || ((current.buffer[0] & 0x80) >> 7) !== 1)
if (!current.buffer || current.buffer.length <= 2)
return;
// WebSocket - Opcode
current.type = current.buffer[0] & 0x0f;
// Compression
// Type must be greater than 0
if (current.type)
current.compressed = (current.buffer[0] & 0x40) === 0x40;
// is final message?
current.final = ((current.buffer[0] & 0x80) >> 7) === 0x01;
// does frame contain mask?
current.isMask = ((current.buffer[1] & 0xfe) >> 7) === 0x01;
// data length
var length = getMessageLength(current.buffer, F.isLE);
// index for data
// Solving a problem with The value "-1" is invalid for option "size"
if (length <= 0)
return current.final;
var index = current.buffer[1] & 0x7f;
index = ((index === 126) ? 4 : (index === 127 ? 10 : 2)) + (current.isMask ? 4 : 0);
// total message length (data + header)
var mlength = index + length;
if (mlength > ctrl.route.size) {
ctrl.close(1009, 'Frame is too large');
return;
}
// Check length of data
if (current.buffer.length < mlength)
return;
current.length = mlength;
// Not Ping & Pong
if (current.type !== 0x09 && current.type !== 0x0A) {
// does frame contain mask?
if (current.isMask) {
current.mask = Buffer.alloc(4);
current.buffer.copy(current.mask, 0, index - 4, index);
}
if (current.compressed && ctrl.inflate) {
var buf = Buffer.alloc(length);
current.buffer.copy(buf, 0, index, mlength);
// does frame contain mask?
if (current.isMask) {
for (var i = 0; i < length; i++)
buf[i] = buf[i] ^ current.mask[i % 4];
}
// Does the buffer continue?
buf.$continue = current.final === false;
ctrl.inflatepending.push(buf);
} else {
current.data = Buffer.alloc(length);
current.buffer.copy(current.data, 0, index, mlength);
if (current.isMask) {
for (var i = 0; i < length; i++)
current.data[i] = current.data[i] ^ current.mask[i % 4];
}
}
}
return true;
};
Controller.prototype.decode = function() {
var ctrl = this;
var data = ctrl.current.body;
var size = data.length;
F.stats.performance.message++;
F.stats.performance.download += size / 1024 / 1024;
switch (ctrl.datatype) {
case 'binary':
ctrl.parent.$events.message && ctrl.parent.emit('message', ctrl, data, size);
break;
case 'json':
if (data instanceof Buffer)
data = data.toString('utf8');
if (ctrl.parent.encodedecode === true)
data = F.TUtils.decodeURIComponent(data);
if (ctrl.parent.encryptdecrypt && F.config.secret_encryption)
data = F.TUtils.decrypt_data(data, F.config.secret_encryption);
if (data.isJSON()) {
let tmp = data.parseJSON(true);
if (REG_EMPTYBUFFER_TEST.test(tmp))
tmp = tmp.replace(REG_EMPTYBUFFER, '');
if (tmp !== undefined && ctrl.parent.$events.message)
ctrl.parent.emit('message', this, tmp, size);
}
break;
default: // TEXT
if (data instanceof Buffer)
data = data.toString('utf8');
if (ctrl.parent.encodedecode === true)
data = F.TUtils.decodeURIComponent(data);
if (ctrl.parent.encryptdecrypt && F.config.secret_encryption)
data = F.TUtils.decrypt_data(data, F.config.secret_encryption);
if (REG_EMPTYBUFFER_TEST.test(data))
data = data.replace(REG_EMPTYBUFFER, '');
ctrl.parent.$events.message && ctrl.parent.emit('message', ctrl, data, size);
break;
}
ctrl.current.body = null;
};
Controller.prototype.parseinflate = function() {
var ctrl = this;
if (ctrl.inflatelock)
return;
var buf = ctrl.inflatepending.shift();
if (buf) {
ctrl.inflatechunks = [];
ctrl.inflatechunkslength = 0;
ctrl.inflatelock = true;
ctrl.inflate.write(buf);
if (!buf.$continue)
ctrl.inflate.write(Buffer.from(SOCKET_COMPRESS));
ctrl.inflate.flush(function() {
if (!ctrl.inflatechunks)
return;
var data = concat(ctrl.inflatechunks, ctrl.inflatechunkslength);
ctrl.inflatechunks = null;
ctrl.inflatelock = false;
if (data.length > ctrl.route.size) {
ctrl.close(1009, 'Frame is too large');
return;
}
if (ctrl.current.body) {
CONCAT[0] = ctrl.current.body;
CONCAT[1] = data;
ctrl.current.body = Buffer.concat(CONCAT);
} else
ctrl.current.body = data;
!buf.$continue && ctrl.decode();
ctrl.parseinflate();
});
}
};
Controller.prototype.send = function(message, raw, replacer) {
var ctrl = this;
if (ctrl.isclosed)
return ctrl;
var buffer;
if (ctrl.datatype !== 'binary') {
var data = ctrl.datatype === 'text' ? (raw ? message : JSON.stringify(message, replacer == true ? F.TUtils.json2replacer : replacer)) : typeof(message) === 'object' ? JSON.stringify(message, replacer == true ? F.TUtils.json2replacer : replacer) : (message + '');
if (ctrl.parent.encryptdecrypt && F.config.secret_encryption)
data = F.TUtils.encrypt_data(data, F.config.secret_encryption);
if (ctrl.parent.encodedecode === true && data)
data = encodeURIComponent(data);
if (ctrl.deflate) {
buffer = Buffer.from(data, 'utf8');
ctrl.deflatepending.push(buffer);
ctrl.senddeflate();
} else {
buffer = Buffer.from(data, 'utf8');
ctrl.socket.write(getWebSocketFrame(0, buffer, 0x01, false, ctrl.masking));
}
} else if (message) {
buffer = message;
if (ctrl.deflate) {
ctrl.deflatepending.push(message);
ctrl.senddeflate();
} else
ctrl.socket.write(getWebSocketFrame(0, message, 0x02, false, ctrl.masking));
}
if (buffer)
F.stats.performance.upload += buffer.length / 1024 / 1024;
};
Controller.prototype.senddeflate = function() {
var ctrl = this;
if (ctrl.deflatelock)
return;
var buf = ctrl.deflatepending.shift();
if (buf) {
ctrl.deflatechunks = [];
ctrl.deflatechunkslength = 0;
ctrl.deflatelock = true;
ctrl.deflate.write(buf);
ctrl.deflate.flush(function() {
if (ctrl.deflatechunks) {
var data = concat(ctrl.deflatechunks, ctrl.deflatechunkslength);
data = data.slice(0, data.length - 4);
ctrl.deflatelock = false;
ctrl.deflatechunks = null;
ctrl.socket.write(getWebSocketFrame(0, data, ctrl.type === 'binary' ? 0x02 : 0x01, true, ctrl.masking));
ctrl.senddeflate();
}
});
}
};
Controller.prototype.ping = function(ts) {
var ctrl = this;
if (!ctrl.isclosed) {
try {
ctrl.$ping = ts || Date.now();
ctrl.socket.write(getWebSocketFrame(0, 'PING', 0x09, false, ctrl.masking));
} catch (e) {
// Socket error
ctrl.onerror(e);
}
}
return ctrl;
};
Controller.prototype.hostname = function(path) {
var ctrl = this;
return ctrl.protocol + '://' + ctrl.headers.host + (path ? path : '');
};
function websocketclientdestroy(ctrl) {
ctrl.socket.destroy();
F.TUtils.destroystream(ctrl.socket);
F.TUtils.destroystream(ctrl.req);
}
function websocketclientsendfin(ctrl) {
ctrl.socket.end(getWebSocketFrame(ctrl.closecode, ctrl.closemessage, 0x08, false, ctrl.masking));
setImmediate(websocketclientdestroy, ctrl);
}
Controller.prototype.close = function(code, message) {
var ctrl = this;
if (!ctrl.isclosed) {
ctrl.isclosed = true;
if (ctrl.ready) {
if (message && ctrl.parent && ctrl.parent.encodedecode)
message = encodeURIComponent(message);
if (ctrl.closecode) {
setImmediate(websocketclientdestroy, ctrl);
} else {
ctrl.closecode = code || 1000;
ctrl.closemessage = message || '';
setTimeout(websocketclientsendfin, 1000, ctrl);
}
} else if (!ctrl.closecode) {
ctrl.socket.end();
setImmediate(websocketclientdestroy, ctrl);
}
}
};
Controller.prototype.sign = function(ctrl) {
var sha1 = F.Crypto.createHash('sha1');
sha1.update((ctrl.headers['sec-websocket-key'] || '') + SOCKET_HASH);
return sha1.digest('base64');
};
function concat(buffers, length) {
var buffer = Buffer.alloc(length);
var offset = 0;
for (var i = 0, n = buffers.length; i < n; i++) {
buffers[i].copy(buffer, offset);
offset += buffers[i].length;
}
return buffer;
}
function WebSocket(url, route, params) {
var t = this;
t.url = url;
t.online = 0;
t.connections = {};
t.route = route;
t.params = params;
// t.autocloseid = null;
F.TUtils.EventEmitter2.extend(t);
}
WebSocket.prototype.encrypt = function(enable) {
this.encryptdecrypt = enable === true || enable == null;
};
WebSocket.prototype.find = function(fn) {
var self = this;
for (var key in self.connections) {
var ctrl = self.connections[key];
if (fn(ctrl))
return ctrl;
}
};
WebSocket.prototype.send = function(message, comparer, replacer, params) {
var self = this;
if (message === undefined)
return self;
if (!params && replacer != null && typeof(replacer) !== 'function') {
params = replacer;
replacer = null;
}
var raw = false;
var data = null;
for (var key in self.connections) {
var ctrl = self.connections[key];
if (data == null) {
if (ctrl.datatype === 'json') {
raw = true;
data = JSON.stringify(message, replacer == true ? F.TUtils.json2replacer : replacer);
} else
data = message;
}
if (comparer && !comparer(ctrl, message, params))
continue;
ctrl.send(data, raw);
F.stats.response.websocket++;
}
return self;
};
// Ping all connections
WebSocket.prototype.ping = function() {
var self = this;
self.$ping = true;
F.stats.other.websocketping++;
var ts = Date.now();
for (var key in self.connections)
self.connections[key].ping(ts);
return self;
};
WebSocket.prototype.api = function(api) {
var self = this;
if (!api.startsWith('/@')) {
if (api[0] !== '@')
api = '@' + api;
api = '/' + api + '/';
}
self.on('message', function(client, msg) {
if (msg && msg.TYPE === 'api')
client.exec(api, msg);
});
return self;
};
WebSocket.prototype.close = function(code, message) {
var self = this;
for (var key in self.connections) {
self.connections[key].close(code, message);
delete self.connections[key];
}
self.online = 0;
return self;
};
WebSocket.prototype.error = function(err) {
var self = this;
F.error(typeof(err) === 'string' ? new Error(err) : err, self.name, self.url);
};
WebSocket.prototype.destroy = function() {
var self = this;
if (!self.connections)
return self;
self.close();
self.$events.destroy && self.emit('destroy');
delete F.connections[self.url];
setTimeout(function(self) {
for (var key in self.connections) {
var conn = self.connections[key];
if (conn) {
conn.isclosed2 = true;
conn.socket.removeAllListeners();
}
}
var index = self.route.connections.indexOf(self);
if (index !== -1)
self.route.connections.splice(index, 1);
}, 1000, self);
};
WebSocket.prototype.add = function(ctrl) {
this.connections[ctrl.ID] = ctrl;
};
WebSocket.prototype.check = function() {
var self = this;
if (self.$ping) {
for (var key in self.connections) {
var ctrl = self.connections[key];
if (ctrl.$ping && (ctrl.latency == null || ctrl.latency > F.config.$wsmaxlatency)) {
ctrl.close();
F.stats.other.websocketcleaner++;
}
}
}
};
function wsdestroy_open() {
var self = this;
if (self.autocloseid) {
clearTimeout(self.autocloseid);
self.autocloseid = null;
}
}
function wsdestroy_close(self) {
// Checks again online state
if (self.online) {
self.autocloseid = null;
return;
}
if (self.autodestroyitems) {
for (var fn of self.autodestroyitems)
fn.call(self);
self.autodestroyitems = null;
}
self.destroy();
}
WebSocket.prototype.autodestroy = function(callback) {
var self = this;
if (self.autodestroyitems) {
self.autodestroyitems.push(callback);
return self;
}
self.autodestroyitems = [];
callback && self.autodestroyitems.push(callback);
self.on('open', wsdestroy_open);
self.on('close', function() {
if (!self.online)
self.autocloseid = setTimeout(wsdestroy_close, 5000, self);
});
return self;
};
function authorize(ctrl) {
if (F.def.onAuthorize) {
var opt = new F.TBuilders.Options(ctrl);
opt.TYPE = 'auth'; // important
opt.query = ctrl.query;
opt.iswebsocket = true;
opt.next = opt.callback;
opt.$callback = function(err, user) {
let auth = user ? 1 : 2;
ctrl.user = user;
if (ctrl.route.auth === auth) {
execute(ctrl);
} else {
ctrl.route = F.TRouting.lookupwebsocket(ctrl, auth);
if (ctrl.route)
execute(ctrl);
else
ctrl.close(4001);
}
};
F.def.onAuthorize(opt);
} else {
ctrl.route = F.TRouting.lookupwebsocket(ctrl, 0);
if (ctrl.route)
execute(ctrl);
else
ctrl.close(4004);
}
}
function middleware(ctrl) {
var run = function(index) {
let key = ctrl.route.middleware[index];
if (key) {
let fn = F.routes.middleware[key];
if (fn)
fn(ctrl, () => run(index + 1));
else
prepare(ctrl);
} else
prepare(ctrl);
};
run(0);
}
function prepare(ctrl) {
ctrl.ondata2 = () => ctrl.ondata();
var compress = (F.config.$wscompress && ctrl.headers['sec-websocket-extensions'] || '').indexOf('permessage-deflate') !== -1;
var header = ctrl.route.protocols && ctrl.route.protocols.length ? (compress ? SOCKET_RESPONSE_PROTOCOL_COMPRESS : SOCKET_RESPONSE_PROTOCOL).format(ctrl.sign(ctrl), ctrl.route.protocols.join(', ')) : (compress ? SOCKET_RESPONSE_COMPRESS : SOCKET_RESPONSE).format(ctrl.sign(ctrl));
ctrl.socket.write(Buffer.from(header, 'binary'));
ctrl.ready = true;
if (compress) {
ctrl.inflatepending = [];
ctrl.inflatelock = false;
ctrl.inflate = F.Zlib.createInflateRaw(SOCKET_COMPRESS_OPTIONS);
ctrl.inflate.$controller = ctrl;
ctrl.inflate.on('error', function() {
if (!ctrl.$uerror) {
ctrl.$uerror = true;
ctrl.close(1003, 'Invalid data');
}
});
ctrl.inflate.on('data', inflate);
ctrl.deflatepending = [];
ctrl.deflatelock = false;
ctrl.deflate = F.Zlib.createDeflateRaw(SOCKET_COMPRESS_OPTIONS);
ctrl.deflate.$controller = ctrl;
ctrl.deflate.on('error', function() {
if (!ctrl.$uerror) {
ctrl.$uerror = true;
ctrl.close(1003, 'Invalid data');
}
});
ctrl.deflate.on('data', deflate);
}
if (WSCLIENTSID++ > 999999999)
WSCLIENTSID = 1;
ctrl.ID = F.TUtils.random_text(3) + WSCLIENTSID;
ctrl.id = ctrl.ID;
if (F.connections[ctrl.url]) {
ctrl.upgrade(F.connections[ctrl.url]);
return;
}
var websocket = new WebSocket(ctrl.url, ctrl.route, ctrl.params);
F.connections[ctrl.url] = websocket;
websocket.encodedecode = F.config.$wsencodedecode === true;
if (!ctrl.route.connections)
ctrl.route.connections = [];
ctrl.route.connections.push(websocket);
ctrl.route.action.call(websocket, websocket);
setImmediate(upgradecontinue, ctrl, websocket);
}
function upgradecontinue(ctrl, websocket) {
ctrl.upgrade(websocket);
}
function inflate(data) {
var ctrl = this.$controller;
if (ctrl && ctrl.inflatechunks) {
ctrl.inflatechunks.push(data);
ctrl.inflatechunkslength += data.length;
}
}
function deflate(data) {
var ctrl = this.$controller;
if (ctrl && ctrl.deflatechunks) {
ctrl.deflatechunks.push(data);
ctrl.deflatechunkslength += data.length;
}
}
function execute(ctrl) {
for (let param of ctrl.route.params) {
let value = ctrl.split[param.index];
ctrl.params[param.name] = value;
}
if (F.def.onLocalize)
ctrl.language = F.def.onLocalize(ctrl);
if (ctrl.route.flags.binary)