forked from mirrors/gecko-dev
119 lines
3.5 KiB
JavaScript
119 lines
3.5 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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var loop = loop || {};
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loop.Client = (function() {
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"use strict";
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// THe expected properties to be returned from the POST /calls request.
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var expectedPostCallProperties = [
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"apiKey", "callId", "progressURL",
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"sessionId", "sessionToken", "websocketToken"
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];
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/**
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* Loop server client.
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*
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* @param {Object} settings Settings object.
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*/
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function Client(settings) {
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if (!settings) {
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settings = {};
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}
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// allowing an |in| test rather than a more type || allows us to dependency
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// inject a non-existent mozLoop
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if ("mozLoop" in settings) {
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this.mozLoop = settings.mozLoop;
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} else {
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this.mozLoop = navigator.mozLoop;
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}
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this.settings = settings;
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}
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Client.prototype = {
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/**
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* Validates a data object to confirm it has the specified properties.
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*
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* @param {Object} The data object to verify
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* @param {Array} The list of properties to verify within the object
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* @return This returns either the specific property if only one
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* property is specified, or it returns all properties
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*/
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_validate: function(data, properties) {
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if (typeof data !== "object") {
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throw new Error("Invalid data received from server");
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}
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properties.forEach(function (property) {
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if (!data.hasOwnProperty(property)) {
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throw new Error("Invalid data received from server - missing " +
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property);
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}
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});
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if (properties.length === 1) {
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return data[properties[0]];
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}
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return data;
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},
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/**
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* Generic handler for XHR failures.
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*
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* @param {Function} cb Callback(err)
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* @param {Object} error See MozLoopAPI.hawkRequest
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*/
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_failureHandler: function(cb, error) {
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var message = "HTTP " + error.code + " " + error.error + "; " + error.message;
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console.error(message);
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cb(error);
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},
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/**
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* Sets up an outgoing call, getting the relevant data from the server.
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*
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* Callback parameters:
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* - err null on successful registration, non-null otherwise.
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* - result an object of the obtained data for starting the call, if successful
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*
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* @param {Array} calleeIds an array of emails and phone numbers.
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* @param {String} callType the type of call.
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* @param {Function} cb Callback(err, result)
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*/
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setupOutgoingCall: function(calleeIds, callType, cb) {
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// For direct calls, we only ever use the logged-in session. Direct
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// calls by guests aren't valid.
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this.mozLoop.hawkRequest(this.mozLoop.LOOP_SESSION_TYPE.FXA,
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"/calls", "POST", {
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calleeId: calleeIds,
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callType: callType,
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channel: this.mozLoop.appVersionInfo ?
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this.mozLoop.appVersionInfo.channel : "unknown"
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},
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function (err, responseText) {
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if (err) {
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this._failureHandler(cb, err);
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return;
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}
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try {
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var postData = JSON.parse(responseText);
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var outgoingCallData = this._validate(postData,
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expectedPostCallProperties);
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cb(null, outgoingCallData);
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} catch (ex) {
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console.log("Error requesting call info", ex);
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cb(ex);
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}
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}.bind(this)
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);
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}
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};
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return Client;
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})();
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