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pubnub-3.6.1.js
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pubnub-3.6.1.js
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// Version: 3.6.1
/* =-====================================================================-= */
/* =-====================================================================-= */
/* =-========================= JSON =============================-= */
/* =-====================================================================-= */
/* =-====================================================================-= */
(window['JSON'] && window['JSON']['stringify']) || (function () {
window['JSON'] || (window['JSON'] = {});
function toJSON(key) {
try { return this.valueOf() }
catch(e) { return null }
}
var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
gap,
indent,
meta = { // table of character substitutions
'\b': '\\b',
'\t': '\\t',
'\n': '\\n',
'\f': '\\f',
'\r': '\\r',
'"' : '\\"',
'\\': '\\\\'
},
rep;
function quote(string) {
escapable.lastIndex = 0;
return escapable.test(string) ?
'"' + string.replace(escapable, function (a) {
var c = meta[a];
return typeof c === 'string' ? c :
'\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
}) + '"' :
'"' + string + '"';
}
function str(key, holder) {
var i, // The loop counter.
k, // The member key.
v, // The member value.
length,
partial,
mind = gap,
value = holder[key];
if (value && typeof value === 'object') {
value = toJSON.call( value, key );
}
if (typeof rep === 'function') {
value = rep.call(holder, key, value);
}
switch (typeof value) {
case 'string':
return quote(value);
case 'number':
return isFinite(value) ? String(value) : 'null';
case 'boolean':
case 'null':
return String(value);
case 'object':
if (!value) {
return 'null';
}
gap += indent;
partial = [];
if (Object.prototype.toString.apply(value) === '[object Array]') {
length = value.length;
for (i = 0; i < length; i += 1) {
partial[i] = str(i, value) || 'null';
}
v = partial.length === 0 ? '[]' :
gap ? '[\n' + gap +
partial.join(',\n' + gap) + '\n' +
mind + ']' :
'[' + partial.join(',') + ']';
gap = mind;
return v;
}
if (rep && typeof rep === 'object') {
length = rep.length;
for (i = 0; i < length; i += 1) {
k = rep[i];
if (typeof k === 'string') {
v = str(k, value);
if (v) {
partial.push(quote(k) + (gap ? ': ' : ':') + v);
}
}
}
} else {
for (k in value) {
if (Object.hasOwnProperty.call(value, k)) {
v = str(k, value);
if (v) {
partial.push(quote(k) + (gap ? ': ' : ':') + v);
}
}
}
}
v = partial.length === 0 ? '{}' :
gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
mind + '}' : '{' + partial.join(',') + '}';
gap = mind;
return v;
}
}
if (typeof JSON['stringify'] !== 'function') {
JSON['stringify'] = function (value, replacer, space) {
var i;
gap = '';
indent = '';
if (typeof space === 'number') {
for (i = 0; i < space; i += 1) {
indent += ' ';
}
} else if (typeof space === 'string') {
indent = space;
}
rep = replacer;
if (replacer && typeof replacer !== 'function' &&
(typeof replacer !== 'object' ||
typeof replacer.length !== 'number')) {
throw new Error('JSON.stringify');
}
return str('', {'': value});
};
}
if (typeof JSON['parse'] !== 'function') {
// JSON is parsed on the server for security.
JSON['parse'] = function (text) {return eval('('+text+')')};
}
}());
var NOW = 1
, READY = false
, READY_BUFFER = []
, PRESENCE_SUFFIX = '-pnpres'
, DEF_WINDOWING = 10 // MILLISECONDS.
, DEF_TIMEOUT = 10000 // MILLISECONDS.
, DEF_SUB_TIMEOUT = 310 // SECONDS.
, DEF_KEEPALIVE = 60 // SECONDS (FOR TIMESYNC).
, SECOND = 1000 // A THOUSAND MILLISECONDS.
, URLBIT = '/'
, PARAMSBIT = '&'
, PRESENCE_HB_THRESHOLD = 5
, PRESENCE_HB_DEFAULT = 30
, SDK_VER = '3.6.1'
, REPL = /{([\w\-]+)}/g;
/**
* UTILITIES
*/
function unique() { return'x'+ ++NOW+''+(+new Date) }
function rnow() { return+new Date }
/**
* NEXTORIGIN
* ==========
* var next_origin = nextorigin();
*/
var nextorigin = (function() {
var max = 20
, ori = Math.floor(Math.random() * max);
return function( origin, failover ) {
return origin.indexOf('pubsub.') > 0
&& origin.replace(
'pubsub', 'ps' + (
failover ? uuid().split('-')[0] :
(++ori < max? ori : ori=1)
) ) || origin;
}
})();
/**
* Build Url
* =======
*
*/
function build_url( url_components, url_params ) {
var url = url_components.join(URLBIT)
, params = [];
if (!url_params) return url;
each( url_params, function( key, value ) {
var value_str = (typeof value == 'object')?JSON['stringify'](value):value;
(typeof value != 'undefined' &&
value != null && encode(value_str).length > 0
) && params.push(key + "=" + encode(value_str));
} );
url += "?" + params.join(PARAMSBIT);
return url;
}
/**
* UPDATER
* =======
* var timestamp = unique();
*/
function updater( fun, rate ) {
var timeout
, last = 0
, runnit = function() {
if (last + rate > rnow()) {
clearTimeout(timeout);
timeout = setTimeout( runnit, rate );
}
else {
last = rnow();
fun();
}
};
return runnit;
}
/**
* GREP
* ====
* var list = grep( [1,2,3], function(item) { return item % 2 } )
*/
function grep( list, fun ) {
var fin = [];
each( list || [], function(l) { fun(l) && fin.push(l) } );
return fin
}
/**
* SUPPLANT
* ========
* var text = supplant( 'Hello {name}!', { name : 'John' } )
*/
function supplant( str, values ) {
return str.replace( REPL, function( _, match ) {
return values[match] || _
} );
}
/**
* timeout
* =======
* timeout( function(){}, 100 );
*/
function timeout( fun, wait ) {
return setTimeout( fun, wait );
}
/**
* uuid
* ====
* var my_uuid = uuid();
*/
function uuid(callback) {
var u = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g,
function(c) {
var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
return v.toString(16);
});
if (callback) callback(u);
return u;
}
function isArray(arg) {
var type = Object.prototype.toString.call(arg);
return ( type === "[object Array]" || type === "[object NodeList]" || type === "[object ScriptBridgingArrayProxyObject]");
}
/**
* EACH
* ====
* each( [1,2,3], function(item) { } )
*/
function each( o, f, old_logic) {
if ( !o || !f ) return;
if ( isArray(o) || ( old_logic && typeof o[0] != 'undefined' ) )
for ( var i = 0, l = o.length; i < l; )
f.call( o[i], o[i], i++ );
else
for ( var i in o )
o.hasOwnProperty &&
o.hasOwnProperty(i) &&
f.call( o[i], i, o[i] );
}
/**
* MAP
* ===
* var list = map( [1,2,3], function(item) { return item + 1 } )
*/
function map( list, fun ) {
var fin = [];
each( list || [], function( k, v ) { fin.push(fun( k, v )) } );
return fin;
}
/**
* ENCODE
* ======
* var encoded_data = encode('path');
*/
function encode(path) { return encodeURIComponent(path) }
/**
* Generate Subscription Channel List
* ==================================
* generate_channel_list(channels_object);
*/
function generate_channel_list(channels, nopresence) {
var list = [];
each( channels, function( channel, status ) {
if (nopresence) {
if(channel.search('-pnpres') < 0) {
if (status.subscribed) list.push(channel);
}
} else {
if (status.subscribed) list.push(channel);
}
});
return list.sort();
}
// PUBNUB READY TO CONNECT
function ready() { timeout( function() {
if (READY) return;
READY = 1;
each( READY_BUFFER, function(connect) { connect() } );
}, SECOND ); }
function PN_API(setup) {
var SUB_WINDOWING = +setup['windowing'] || DEF_WINDOWING
, SUB_TIMEOUT = (+setup['timeout'] || DEF_SUB_TIMEOUT) * SECOND
, KEEPALIVE = (+setup['keepalive'] || DEF_KEEPALIVE) * SECOND
, NOLEAVE = setup['noleave'] || 0
, PUBLISH_KEY = setup['publish_key'] || 'demo'
, SUBSCRIBE_KEY = setup['subscribe_key'] || 'demo'
, AUTH_KEY = setup['auth_key'] || ''
, SECRET_KEY = setup['secret_key'] || ''
, PNSDK = setup['PNSDK'] || ''
, hmac_SHA256 = setup['hmac_SHA256']
, SSL = setup['ssl'] ? 's' : ''
, ORIGIN = 'http'+SSL+'://'+(setup['origin']||'pubsub.pubnub.com')
, STD_ORIGIN = nextorigin(ORIGIN)
, SUB_ORIGIN = nextorigin(ORIGIN)
, CONNECT = function(){}
, PUB_QUEUE = []
, TIME_DRIFT = 0
, SUB_CALLBACK = 0
, SUB_CHANNEL = 0
, SUB_RECEIVER = 0
, SUB_RESTORE = 0
, SUB_BUFF_WAIT = 0
, TIMETOKEN = 0
, RESUMED = false
, CHANNELS = {}
, STATE = {}
, PRESENCE_HB_TIMEOUT = null
, PRESENCE_HB = validate_presence_heartbeat(setup['heartbeat'] || setup['pnexpires'] || 0, setup['error'])
, PRESENCE_HB_INTERVAL = setup['heartbeat_interval'] || PRESENCE_HB - 3
, PRESENCE_HB_RUNNING = false
, NO_WAIT_FOR_PENDING = setup['no_wait_for_pending']
, COMPATIBLE_35 = setup['compatible_3.5'] || false
, xdr = setup['xdr']
, error = setup['error'] || function() {}
, _is_online = setup['_is_online'] || function() { return 1 }
, jsonp_cb = setup['jsonp_cb'] || function() { return 0 }
, db = setup['db'] || {'get': function(){}, 'set': function(){}}
, CIPHER_KEY = setup['cipher_key']
, UUID = setup['uuid'] || ( db && db['get'](SUBSCRIBE_KEY+'uuid') || '');
var crypto_obj = setup['crypto_obj'] ||
{
'encrypt' : function(a,key){ return a},
'decrypt' : function(b,key){return b}
};
function validate_presence_heartbeat(heartbeat, cur_heartbeat, error) {
var err = false;
if (typeof heartbeat === 'number') {
if (heartbeat > PRESENCE_HB_THRESHOLD || heartbeat == 0)
err = false;
else
err = true;
} else if(typeof heartbeat === 'boolean'){
if (!heartbeat) {
return 0;
} else {
return PRESENCE_HB_DEFAULT;
}
} else {
err = true;
}
if (err) {
error && error("Presence Heartbeat value invalid. Valid range ( x > " + PRESENCE_HB_THRESHOLD + " or x = 0). Current Value : " + (cur_heartbeat || PRESENCE_HB_THRESHOLD));
return cur_heartbeat || PRESENCE_HB_THRESHOLD;
} else return heartbeat;
}
function encrypt(input, key) {
return crypto_obj['encrypt'](input, key || CIPHER_KEY) || input;
}
function decrypt(input, key) {
return crypto_obj['decrypt'](input, key || CIPHER_KEY) ||
crypto_obj['decrypt'](input, CIPHER_KEY) ||
input;
}
function error_common(message, callback) {
callback && callback({ 'error' : message || "error occurred"});
error && error(message);
}
function _presence_heartbeat() {
clearTimeout(PRESENCE_HB_TIMEOUT);
if (!PRESENCE_HB_INTERVAL || PRESENCE_HB_INTERVAL >= 500 || PRESENCE_HB_INTERVAL < 1 || !generate_channel_list(CHANNELS,true).length){
PRESENCE_HB_RUNNING = false;
return;
}
PRESENCE_HB_RUNNING = true;
SELF['presence_heartbeat']({
'callback' : function(r) {
PRESENCE_HB_TIMEOUT = timeout( _presence_heartbeat, (PRESENCE_HB_INTERVAL) * SECOND );
},
'error' : function(e) {
error && error("Presence Heartbeat unable to reach Pubnub servers." + JSON.stringify(e));
PRESENCE_HB_TIMEOUT = timeout( _presence_heartbeat, (PRESENCE_HB_INTERVAL) * SECOND );
}
});
}
function start_presence_heartbeat() {
!PRESENCE_HB_RUNNING && _presence_heartbeat();
}
function publish(next) {
if (NO_WAIT_FOR_PENDING) {
if (!PUB_QUEUE.length) return;
} else {
if (next) PUB_QUEUE.sending = 0;
if ( PUB_QUEUE.sending || !PUB_QUEUE.length ) return;
PUB_QUEUE.sending = 1;
}
xdr(PUB_QUEUE.shift());
}
function each_channel(callback) {
var count = 0;
each( generate_channel_list(CHANNELS), function(channel) {
var chan = CHANNELS[channel];
if (!chan) return;
count++;
(callback||function(){})(chan);
} );
return count;
}
function _invoke_callback(response, callback, err) {
if (typeof response == 'object') {
if (response['error'] && response['message'] && response['payload']) {
err({'message' : response['message'], 'payload' : response['payload']});
return;
}
if (response['payload']) {
callback(response['payload']);
return;
}
}
callback(response);
}
function _invoke_error(response,err) {
if (typeof response == 'object' && response['error']) {
err({'message' : response['message'], 'payload' : response['payload']});
} else err(response);
}
// Announce Leave Event
var SELF = {
'LEAVE' : function( channel, blocking, callback, error ) {
var data = { 'uuid' : UUID, 'auth' : AUTH_KEY }
, origin = nextorigin(ORIGIN)
, callback = callback || function(){}
, err = error || function(){}
, jsonp = jsonp_cb();
// Prevent Leaving a Presence Channel
if (channel.indexOf(PRESENCE_SUFFIX) > 0) return true;
if (COMPATIBLE_35) {
if (!SSL) return false;
if (jsonp == '0') return false;
}
if (NOLEAVE) return false;
if (jsonp != '0') data['callback'] = jsonp;
xdr({
blocking : blocking || SSL,
timeout : 2000,
callback : jsonp,
data : data,
success : function(response) {
_invoke_callback(response, callback, err);
},
fail : function(response) {
_invoke_error(response, err);
},
url : [
origin, 'v2', 'presence', 'sub_key',
SUBSCRIBE_KEY, 'channel', encode(channel), 'leave'
]
});
return true;
},
'set_resumed' : function(resumed) {
RESUMED = resumed;
},
'get_cipher_key' : function() {
return CIPHER_KEY;
},
'set_cipher_key' : function(key) {
CIPHER_KEY = key;
},
'raw_encrypt' : function(input, key) {
return encrypt(input, key);
},
'raw_decrypt' : function(input, key) {
return decrypt(input, key);
},
'get_heartbeat' : function() {
return PRESENCE_HB;
},
'set_heartbeat' : function(heartbeat) {
PRESENCE_HB = validate_presence_heartbeat(heartbeat, PRESENCE_HB_INTERVAL, error);
PRESENCE_HB_INTERVAL = (PRESENCE_HB - 3 >= 1)?PRESENCE_HB - 3:1;
CONNECT();
_presence_heartbeat();
},
'get_heartbeat_interval' : function() {
return PRESENCE_HB_INTERVAL;
},
'set_heartbeat_interval' : function(heartbeat_interval) {
PRESENCE_HB_INTERVAL = heartbeat_interval;
_presence_heartbeat();
},
'get_version' : function() {
return SDK_VER;
},
/*
PUBNUB.history({
channel : 'my_chat_channel',
limit : 100,
callback : function(history) { }
});
*/
'history' : function( args, callback ) {
var callback = args['callback'] || callback
, count = args['count'] || args['limit'] || 100
, reverse = args['reverse'] || "false"
, err = args['error'] || function(){}
, auth_key = args['auth_key'] || AUTH_KEY
, cipher_key = args['cipher_key']
, channel = args['channel']
, start = args['start']
, end = args['end']
, include_token = args['include_token']
, params = {}
, jsonp = jsonp_cb();
// Make sure we have a Channel
if (!channel) return error('Missing Channel');
if (!callback) return error('Missing Callback');
if (!SUBSCRIBE_KEY) return error('Missing Subscribe Key');
params['stringtoken'] = 'true';
params['count'] = count;
params['reverse'] = reverse;
params['auth'] = auth_key;
if (jsonp) params['callback'] = jsonp;
if (start) params['start'] = start;
if (end) params['end'] = end;
if (include_token) params['include_token'] = 'true';
// Send Message
xdr({
callback : jsonp,
data : params,
success : function(response) {
if (typeof response == 'object' && response['error']) {
err({'message' : response['message'], 'payload' : response['payload']});
return;
}
var messages = response[0];
var decrypted_messages = [];
for (var a = 0; a < messages.length; a++) {
var new_message = decrypt(messages[a],cipher_key);
try {
decrypted_messages['push'](JSON['parse'](new_message));
} catch (e) {
decrypted_messages['push']((new_message));
}
}
callback([decrypted_messages, response[1], response[2]]);
},
fail : function(response) {
_invoke_error(response, err);
},
url : [
STD_ORIGIN, 'v2', 'history', 'sub-key',
SUBSCRIBE_KEY, 'channel', encode(channel)
]
});
},
/*
PUBNUB.replay({
source : 'my_channel',
destination : 'new_channel'
});
*/
'replay' : function(args, callback) {
var callback = callback || args['callback'] || function(){}
, auth_key = args['auth_key'] || AUTH_KEY
, source = args['source']
, destination = args['destination']
, stop = args['stop']
, start = args['start']
, end = args['end']
, reverse = args['reverse']
, limit = args['limit']
, jsonp = jsonp_cb()
, data = {}
, url;
// Check User Input
if (!source) return error('Missing Source Channel');
if (!destination) return error('Missing Destination Channel');
if (!PUBLISH_KEY) return error('Missing Publish Key');
if (!SUBSCRIBE_KEY) return error('Missing Subscribe Key');
// Setup URL Params
if (jsonp != '0') data['callback'] = jsonp;
if (stop) data['stop'] = 'all';
if (reverse) data['reverse'] = 'true';
if (start) data['start'] = start;
if (end) data['end'] = end;
if (limit) data['count'] = limit;
data['auth'] = auth_key;
// Compose URL Parts
url = [
STD_ORIGIN, 'v1', 'replay',
PUBLISH_KEY, SUBSCRIBE_KEY,
source, destination
];
// Start (or Stop) Replay!
xdr({
callback : jsonp,
success : function(response) {
_invoke_callback(response, callback, err);
},
fail : function() { callback([ 0, 'Disconnected' ]) },
url : url,
data : data
});
},
/*
PUBNUB.auth('AJFLKAJSDKLA');
*/
'auth' : function(auth) {
AUTH_KEY = auth;
CONNECT();
},
/*
PUBNUB.time(function(time){ });
*/
'time' : function(callback) {
var jsonp = jsonp_cb();
xdr({
callback : jsonp,
data : { 'uuid' : UUID, 'auth' : AUTH_KEY },
timeout : SECOND * 5,
url : [STD_ORIGIN, 'time', jsonp],
success : function(response) { callback(response[0]) },
fail : function() { callback(0) }
});
},
/*
PUBNUB.publish({
channel : 'my_chat_channel',
message : 'hello!'
});
*/
'publish' : function( args, callback ) {
var callback = callback || args['callback'] || function(){}
, msg = args['message']
, channel = args['channel']
, auth_key = args['auth_key'] || AUTH_KEY
, cipher_key = args['cipher_key']
, err = args['error'] || function() {}
, jsonp = jsonp_cb()
, add_msg = 'push'
, url;
if (args['prepend']) add_msg = 'unshift'
if (!msg) return error('Missing Message');
if (!channel) return error('Missing Channel');
if (!PUBLISH_KEY) return error('Missing Publish Key');
if (!SUBSCRIBE_KEY) return error('Missing Subscribe Key');
// If trying to send Object
msg = JSON['stringify'](encrypt(msg, cipher_key));
// Create URL
url = [
STD_ORIGIN, 'publish',
PUBLISH_KEY, SUBSCRIBE_KEY,
0, encode(channel),
jsonp, encode(msg)
];
// Queue Message Send
PUB_QUEUE[add_msg]({
callback : jsonp,
timeout : SECOND * 5,
url : url,
data : { 'uuid' : UUID, 'auth' : auth_key },
fail : function(response){
_invoke_error(response, err);
publish(1);
},
success : function(response) {
_invoke_callback(response, callback, err);
publish(1);
}
});
// Send Message
publish();
},
/*
PUBNUB.unsubscribe({ channel : 'my_chat' });
*/
'unsubscribe' : function(args, callback) {
var channel = args['channel']
, callback = callback || args['callback'] || function(){}
, err = args['error'] || function(){};
TIMETOKEN = 0;
SUB_RESTORE = 1;
// Prepare Channel(s)
channel = map( (
channel.join ? channel.join(',') : ''+channel
).split(','), function(channel) {
if (!CHANNELS[channel]) return;
return channel + ',' + channel + PRESENCE_SUFFIX;
} ).join(',');
// Iterate over Channels
each( channel.split(','), function(channel) {
var CB_CALLED = true;
if (!channel) return;
if (READY) {
CB_CALLED = SELF['LEAVE']( channel, 0 , callback, err);
}
if (!CB_CALLED) callback({action : "leave"});
CHANNELS[channel] = 0;
if (channel in STATE) delete STATE[channel];
} );
// Reset Connection if Count Less
CONNECT();
},
/*
PUBNUB.subscribe({
channel : 'my_chat'
callback : function(message) { }
});
*/
'subscribe' : function( args, callback ) {
var channel = args['channel']
, callback = callback || args['callback']
, callback = callback || args['message']
, auth_key = args['auth_key'] || AUTH_KEY
, connect = args['connect'] || function(){}
, reconnect = args['reconnect'] || function(){}
, disconnect = args['disconnect'] || function(){}
, errcb = args['error'] || function(){}
, idlecb = args['idle'] || function(){}
, presence = args['presence'] || 0
, noheresync = args['noheresync'] || 0
, backfill = args['backfill'] || 0
, timetoken = args['timetoken'] || 0
, sub_timeout = args['timeout'] || SUB_TIMEOUT
, windowing = args['windowing'] || SUB_WINDOWING
, state = args['state']
, heartbeat = args['heartbeat'] || args['pnexpires']
, restore = args['restore'];
// Restore Enabled?
SUB_RESTORE = restore;
// Always Reset the TT
TIMETOKEN = timetoken;
// Make sure we have a Channel
if (!channel) return error('Missing Channel');
if (!callback) return error('Missing Callback');
if (!SUBSCRIBE_KEY) return error('Missing Subscribe Key');
if (heartbeat || heartbeat === 0) {
SELF['set_heartbeat'](heartbeat);
}
// Setup Channel(s)
each( (channel.join ? channel.join(',') : ''+channel).split(','),
function(channel) {
var settings = CHANNELS[channel] || {};
// Store Channel State
CHANNELS[SUB_CHANNEL = channel] = {
name : channel,
connected : settings.connected,
disconnected : settings.disconnected,
subscribed : 1,
callback : SUB_CALLBACK = callback,
'cipher_key' : args['cipher_key'],
connect : connect,
disconnect : disconnect,
reconnect : reconnect
};
if (state) {
if (channel in state) {
STATE[channel] = state[channel];
} else {
STATE[channel] = state;
}
}
// Presence Enabled?
if (!presence) return;
// Subscribe Presence Channel
SELF['subscribe']({
'channel' : channel + PRESENCE_SUFFIX,
'callback' : presence
});
// Presence Subscribed?
if (settings.subscribed) return;
// See Who's Here Now?
if (noheresync) return;
SELF['here_now']({
'channel' : channel,
'callback' : function(here) {
each( 'uuids' in here ? here['uuids'] : [],
function(uid) { presence( {
'action' : 'join',
'uuid' : uid,
'timestamp' : rnow(),
'occupancy' : here['occupancy'] || 1
}, here, channel ); } );
}
});
} );
// Test Network Connection
function _test_connection(success) {
if (success) {
// Begin Next Socket Connection
timeout( CONNECT, SECOND );
}
else {
// New Origin on Failed Connection
STD_ORIGIN = nextorigin( ORIGIN, 1 );
SUB_ORIGIN = nextorigin( ORIGIN, 1 );
// Re-test Connection
timeout( function() {
SELF['time'](_test_connection);
}, SECOND );
}
// Disconnect & Reconnect
each_channel(function(channel){
// Reconnect
if (success && channel.disconnected) {
channel.disconnected = 0;
return channel.reconnect(channel.name);
}
// Disconnect
if (!success && !channel.disconnected) {
channel.disconnected = 1;
channel.disconnect(channel.name);
}
});
}
// Evented Subscribe
function _connect() {
var jsonp = jsonp_cb()
, channels = generate_channel_list(CHANNELS).join(',');
// Stop Connection
if (!channels) return;
// Connect to PubNub Subscribe Servers
_reset_offline();
var data = { 'uuid' : UUID, 'auth' : auth_key };
var st = JSON.stringify(STATE);
if (st.length > 2) data['state'] = JSON.stringify(STATE);
if (PRESENCE_HB) data['heartbeat'] = PRESENCE_HB;
start_presence_heartbeat();
SUB_RECEIVER = xdr({
timeout : sub_timeout,
callback : jsonp,
fail : function(response) {
_invoke_error(response, errcb);
//SUB_RECEIVER = null;
SELF['time'](_test_connection);
},
data : data,
url : [
SUB_ORIGIN, 'subscribe',
SUBSCRIBE_KEY, encode(channels),
jsonp, TIMETOKEN
],
success : function(messages) {
//SUB_RECEIVER = null;
// Check for Errors
if (!messages || (
typeof messages == 'object' &&
'error' in messages &&
messages['error']
)) {
errcb(messages['error']);
return timeout( CONNECT, SECOND );
}
// User Idle Callback
idlecb(messages[1]);
// Restore Previous Connection Point if Needed
TIMETOKEN = !TIMETOKEN &&
SUB_RESTORE &&
db['get'](SUBSCRIBE_KEY) || messages[1];
// Connect
each_channel(function(channel){
if (channel.connected) return;
channel.connected = 1;