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Integrate keepalives into websocket resources

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This commit is contained in:
lilia 2015-07-28 13:05:55 -07:00
parent 7d2b41db11
commit cd363bd84d
6 changed files with 116 additions and 118 deletions
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52
libtextsecure/websocket-resources.js
View file

@ -92,7 +92,7 @@
);
};
window.WebSocketResource = function(socket, handleRequest) {
window.WebSocketResource = function(socket, handleRequest, keepalive) {
this.sendRequest = function(options) {
return new OutgoingWebSocketRequest(options, socket);
};
@ -138,6 +138,56 @@
};
reader.readAsArrayBuffer(blob);
};
if (opts.keepalive) {
var keepalive = new KeepAlive(this, {
path : opts.keepalive.path,
disconnect : opts.keepalive.disconnect
});
this.resetKeepAliveTimer = keepalive.reset.bind(keepalive);
}
};
function KeepAlive(websocketResource, opts) {
if (websocketResource instanceof WebSocketResource) {
opts = opts || {};
this.path = opts.path;
if (this.path === undefined) {
this.path = '/';
}
this.disconnect = opts.disconnect;
if (this.disconnect === undefined) {
this.disconnect = false;
}
this.wsr = websocketResource;
this.reset();
} else {
throw new TypeError('KeepAlive expected a WebSocketResource');
}
}
KeepAlive.prototype = {
constructor: KeepAlive,
reset: function() {
clearTimeout(this.keepAliveTimer);
clearTimeout(this.disconnectTimer);
this.keepAliveTimer = setTimeout(function() {
this.wsr.sendRequest({
verb: 'GET',
path: this.path,
success: this.reset.bind(this)
});
if (this.disconnect) {
// automatically disconnect if server doesn't ack
this.disconnectTimer = setTimeout(function() {
this.wsr.close(3001, 'No response to keepalive request');
}.bind(this), 1000);
} else {
this.reset();
}
}.bind(this), 55000);
},
};
}());