300 lines
12 KiB
JavaScript
300 lines
12 KiB
JavaScript
/*
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* vim: ts=4:sw=4:expandtab
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*/
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var TextSecureServer = (function() {
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'use strict';
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// Promise-based async xhr routine
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function ajax(url, options) {
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return new Promise(function (resolve, reject) {
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console.log(options.type, url);
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var error = new Error(); // just in case, save stack here.
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var xhr = new XMLHttpRequest();
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xhr.open(options.type, url, true /*async*/);
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if ( options.responseType ) {
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xhr[ 'responseType' ] = options.responseType;
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}
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if (options.user && options.password) {
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xhr.setRequestHeader("Authorization", "Basic " + btoa(getString(options.user) + ":" + getString(options.password)));
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}
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if (options.contentType) {
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xhr.setRequestHeader( "Content-Type", options.contentType );
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}
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xhr.onload = function() {
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var result = xhr.response;
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if ( (!xhr.responseType || xhr.responseType === "text") &&
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typeof xhr.responseText === "string" ) {
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result = xhr.responseText;
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}
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if (options.dataType === 'json') {
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try { result = JSON.parse(xhr.responseText + ''); } catch(e) {}
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}
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if ( 0 <= xhr.status && xhr.status < 400) {
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console.log(options.type, url, xhr.status, 'Success');
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resolve(result, xhr.status);
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} else {
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console.log(options.type, url, xhr.status, 'Error');
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reject(HTTPError(xhr.status, result, error.stack));
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}
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};
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xhr.onerror = function() {
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console.log(options.type, url, xhr.status, 'Error');
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reject(HTTPError(xhr.status, null, error.stack));
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};
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xhr.send( options.data || null );
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});
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}
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function HTTPError(code, response, stack) {
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if (code > 999 || code < 100) {
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code = -1;
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}
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var e = new Error();
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e.name = 'HTTPError';
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e.code = code;
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e.stack = stack;
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if (response) {
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e.response = response;
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}
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return e;
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}
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var URL_CALLS = {
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accounts : "/v1/accounts",
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devices : "/v1/devices",
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keys : "/v2/keys",
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messages : "/v1/messages",
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attachment : "/v1/attachments"
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};
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var attachment_id_regex = RegExp( "^https:\/\/.*\/(\\d+)\?");
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function TextSecureServer(url, username, password) {
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if (typeof url !== 'string') {
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throw new Error('Invalid server url');
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}
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this.url = url;
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this.username = username;
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this.password = password;
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}
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TextSecureServer.prototype = {
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constructor: TextSecureServer,
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ajax: function(param) {
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if (!param.urlParameters) {
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param.urlParameters = '';
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}
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return ajax(this.url + URL_CALLS[param.call] + param.urlParameters, {
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type : param.httpType,
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data : param.jsonData && textsecure.utils.jsonThing(param.jsonData),
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contentType : 'application/json; charset=utf-8',
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dataType : 'json',
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user : this.username,
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password : this.password
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}).catch(function(e) {
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var code = e.code;
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if (code === 200) {
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// happens sometimes when we get no response
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// (TODO: Fix server to return 204? instead)
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return null;
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}
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var message;
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switch (code) {
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case -1:
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message = "Failed to connect to the server, please check your network connection.";
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break;
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case 413:
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message = "Rate limit exceeded, please try again later.";
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break;
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case 403:
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message = "Invalid code, please try again.";
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break;
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case 417:
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// TODO: This shouldn't be a thing?, but its in the API doc?
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message = "Number already registered.";
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break;
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case 401:
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case 403:
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message = "Invalid authentication, most likely someone re-registered and invalidated our registration.";
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break;
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case 404:
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message = "Number is not registered with TextSecure.";
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break;
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default:
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message = "The server rejected our query, please file a bug report.";
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}
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e.message = message
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throw e;
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});
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},
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requestVerificationSMS: function(number) {
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return this.ajax({
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call : 'accounts',
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httpType : 'GET',
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urlParameters : '/sms/code/' + number,
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});
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},
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requestVerificationVoice: function(number) {
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return this.ajax({
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call : 'accounts',
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httpType : 'GET',
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urlParameters : '/voice/code/' + number,
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});
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},
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confirmCode: function(number, code, password, signaling_key, registrationId, deviceName) {
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var call = deviceName ? 'devices' : 'accounts';
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var urlPrefix = deviceName ? '/' : '/code/';
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var jsonData = {
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signalingKey : btoa(getString(signaling_key)),
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supportsSms : false,
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fetchesMessages : true,
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registrationId : registrationId,
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};
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if (deviceName) {
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jsonData.name = deviceName;
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}
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this.username = number;
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this.password = password;
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return this.ajax({
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call : call,
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httpType : 'PUT',
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urlParameters : urlPrefix + code,
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jsonData : jsonData
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});
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},
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getDevices: function(number) {
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return this.ajax({
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call : 'devices',
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httpType : 'GET',
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});
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},
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registerKeys: function(genKeys) {
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var keys = {};
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keys.identityKey = btoa(getString(genKeys.identityKey));
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keys.signedPreKey = {
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keyId: genKeys.signedPreKey.keyId,
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publicKey: btoa(getString(genKeys.signedPreKey.publicKey)),
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signature: btoa(getString(genKeys.signedPreKey.signature))
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};
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keys.preKeys = [];
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var j = 0;
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for (var i in genKeys.preKeys) {
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keys.preKeys[j++] = {
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keyId: genKeys.preKeys[i].keyId,
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publicKey: btoa(getString(genKeys.preKeys[i].publicKey))
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};
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}
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//TODO: This is just to make the server happy (v2 clients should choke on publicKey),
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// it needs removed before release
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keys.lastResortKey = {keyId: 0x7fffFFFF, publicKey: btoa("42")};
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return this.ajax({
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call : 'keys',
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httpType : 'PUT',
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jsonData : keys,
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});
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},
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getMyKeys: function(number, deviceId) {
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return this.ajax({
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call : 'keys',
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httpType : 'GET',
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}).then(function(res) {
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return parseInt(res.count);
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});
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},
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getKeysForNumber: function(number, deviceId) {
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if (deviceId === undefined)
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deviceId = "*";
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return this.ajax({
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call : 'keys',
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httpType : 'GET',
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urlParameters : "/" + number + "/" + deviceId,
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}).then(function(res) {
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var promises = [];
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res.identityKey = StringView.base64ToBytes(res.identityKey);
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for (var i = 0; i < res.devices.length; i++) {
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res.devices[i].signedPreKey.publicKey = StringView.base64ToBytes(res.devices[i].signedPreKey.publicKey);
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res.devices[i].signedPreKey.signature = StringView.base64ToBytes(res.devices[i].signedPreKey.signature);
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res.devices[i].preKey.publicKey = StringView.base64ToBytes(res.devices[i].preKey.publicKey);
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//TODO: Is this still needed?
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//if (res.devices[i].keyId === undefined)
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// res.devices[i].keyId = 0;
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}
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return res;
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});
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},
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sendMessages: function(destination, messageArray, legacy) {
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//TODO: Do this conversion somewhere else?
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for (var i = 0; i < messageArray.length; i++) {
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messageArray[i].content = btoa(messageArray[i].content);
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if (legacy) {
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messageArray[i].body = messageArray[i].content;
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delete messageArray[i].content;
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}
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}
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var jsonData = { messages: messageArray };
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jsonData.timestamp = messageArray[0].timestamp;
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return this.ajax({
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call : 'messages',
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httpType : 'PUT',
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urlParameters : '/' + destination,
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jsonData : jsonData,
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});
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},
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getAttachment: function(id) {
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return this.ajax({
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call : 'attachment',
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httpType : 'GET',
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urlParameters : '/' + id,
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}).then(function(response) {
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return ajax(response.location, {
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type : "GET",
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responseType: "arraybuffer",
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contentType : "application/octet-stream"
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});
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});
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},
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putAttachment: function(encryptedBin) {
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return this.ajax({
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call : 'attachment',
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httpType : 'GET',
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}).then(function(response) {
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return ajax(response.location, {
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type : "PUT",
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contentType : "application/octet-stream",
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data : encryptedBin,
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processData : false,
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}).then(function() {
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// Parse the id as a string from the location url
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// (workaround for ids too large for Javascript numbers)
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return response.location.match(attachment_id_regex)[1];
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});
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});
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},
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getMessageSocket: function() {
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return new WebSocket(
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this.url.replace('https://', 'wss://')
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.replace('http://', 'ws://')
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+ '/v1/websocket/?login=' + encodeURIComponent(this.username)
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+ '&password=' + encodeURIComponent(this.password)
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);
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},
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getProvisioningSocket: function () {
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return new WebSocket(
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this.url.replace('https://', 'wss://')
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.replace('http://', 'ws://')
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+ '/v1/websocket/provisioning/'
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);
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}
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};
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return TextSecureServer;
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})();
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