Cable-Desktop/js/helpers.js
Matt Corallo de83429962 v3 steps
2014-07-22 21:23:52 -04:00

797 lines
29 KiB
JavaScript

/* vim: ts=4:sw=4
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* START CRAP TO BE DELETED */
//Stolen from MDN (TODO: replace with something else so we arent infringing their copyright)
function b64ToUint6 (nChr) {
return nChr > 64 && nChr < 91 ?
nChr - 65
: nChr > 96 && nChr < 123 ?
nChr - 71
: nChr > 47 && nChr < 58 ?
nChr + 4
: nChr === 43 ?
62
: nChr === 47 ?
63
:
0;
}
function base64DecToArr (sBase64, nBlocksSize) {
var
sB64Enc = sBase64.replace(/[^A-Za-z0-9\+\/]/g, ""), nInLen = sB64Enc.length,
nOutLen = nBlocksSize ? Math.ceil((nInLen * 3 + 1 >> 2) / nBlocksSize) * nBlocksSize : nInLen * 3 + 1 >> 2;
var aBBytes = new ArrayBuffer(nOutLen);
var taBytes = new Uint8Array(aBBytes);
for (var nMod3, nMod4, nUint24 = 0, nOutIdx = 0, nInIdx = 0; nInIdx < nInLen; nInIdx++) {
nMod4 = nInIdx & 3;
nUint24 |= b64ToUint6(sB64Enc.charCodeAt(nInIdx)) << 18 - 6 * nMod4;
if (nMod4 === 3 || nInLen - nInIdx === 1) {
for (nMod3 = 0; nMod3 < 3 && nOutIdx < nOutLen; nMod3++, nOutIdx++) {
taBytes[nOutIdx] = nUint24 >>> (16 >>> nMod3 & 24) & 255;
}
nUint24 = 0;
}
}
return aBBytes;
}
/* Base64 string to array encoding */
function uint6ToB64 (nUint6) {
return nUint6 < 26 ?
nUint6 + 65
: nUint6 < 52 ?
nUint6 + 71
: nUint6 < 62 ?
nUint6 - 4
: nUint6 === 62 ?
43
: nUint6 === 63 ?
47
:
65;
}
function base64EncArr (aBytes) {
var nMod3, sB64Enc = "";
for (var nLen = aBytes.length, nUint24 = 0, nIdx = 0; nIdx < nLen; nIdx++) {
nMod3 = nIdx % 3;
//if (nIdx > 0 && (nIdx * 4 / 3) % 76 === 0) { sB64Enc += "\r\n"; }
nUint24 |= aBytes[nIdx] << (16 >>> nMod3 & 24);
if (nMod3 === 2 || aBytes.length - nIdx === 1) {
sB64Enc += String.fromCharCode(uint6ToB64(nUint24 >>> 18 & 63), uint6ToB64(nUint24 >>> 12 & 63), uint6ToB64(nUint24 >>> 6 & 63), uint6ToB64(nUint24 & 63));
nUint24 = 0;
}
}
return sB64Enc.replace(/A(?=A$|$)/g, "=");
}
/* END CRAP TO BE DELETED */
window.textsecure = window.textsecure || {};
/*********************************
*** Type conversion utilities ***
*********************************/
// Strings/arrays
//TODO: Throw all this shit in favor of consistent types
//TODO: Namespace
var StaticByteBufferProto = new dcodeIO.ByteBuffer().__proto__;
var StaticArrayBufferProto = new ArrayBuffer().__proto__;
var StaticUint8ArrayProto = new Uint8Array().__proto__;
var StaticWordArrayProto = CryptoJS.lib.WordArray.create('').__proto__;
function getString(thing) {
if (thing === Object(thing)) {
if (thing.__proto__ == StaticUint8ArrayProto)
return String.fromCharCode.apply(null, thing);
if (thing.__proto__ == StaticArrayBufferProto)
return getString(new Uint8Array(thing));
if (thing.__proto__ == StaticByteBufferProto)
return thing.toString("binary");
if (thing.__proto__ == StaticWordArrayProto)
return thing.toString(CryptoJS.enc.Latin1);
}
return thing;
}
function getStringable(thing) {
return (typeof thing == "string" || typeof thing == "number" || typeof thing == "boolean" ||
(thing === Object(thing) &&
(thing.__proto__ == StaticArrayBufferProto ||
thing.__proto__ == StaticUint8ArrayProto ||
thing.__proto__ == StaticByteBufferProto ||
thing.__proto__ == StaticWordArrayProto)));
}
function isEqual(a, b) {
// TODO: Special-case arraybuffers, etc
a = getString(a);
b = getString(b);
var maxLength = Math.min(a.length, b.length);
if (maxLength < 5)
throw new Error("a/b compare too short");
return a.substring(0, Math.min(maxLength, a.length)) == b.substring(0, Math.min(maxLength, b.length));
}
function toArrayBuffer(thing) {
//TODO: Optimize this for specific cases
if (thing === undefined)
return undefined;
if (thing === Object(thing) && thing.__proto__ == StaticArrayBufferProto)
return thing;
if (thing instanceof Array) {
// Assuming Uint16Array from curve25519
var res = new ArrayBuffer(thing.length * 2);
var uint = new Uint16Array(res);
for (var i = 0; i < thing.length; i++)
uint[i] = thing[i];
return res;
}
if (!getStringable(thing))
throw new Error("Tried to convert a non-stringable thing of type " + typeof thing + " to an array buffer");
var str = getString(thing);
var res = new ArrayBuffer(str.length);
var uint = new Uint8Array(res);
for (var i = 0; i < str.length; i++)
uint[i] = str.charCodeAt(i);
return res;
}
function base64ToArrayBuffer(string) {
return base64DecToArr(string);
}
// Protobuf decoding
//TODO: throw on missing fields everywhere
window.textsecure.protos = function() {
var self = {};
self.IncomingPushMessageProtobuf = dcodeIO.ProtoBuf.loadProtoFile("protos/IncomingPushMessageSignal.proto").build("textsecure.IncomingPushMessageSignal");
self.decodeIncomingPushMessageProtobuf = function(string) {
return self.IncomingPushMessageProtobuf.decode(btoa(string));
}
self.PushMessageContentProtobuf = dcodeIO.ProtoBuf.loadProtoFile("protos/IncomingPushMessageSignal.proto").build("textsecure.PushMessageContent");
self.decodePushMessageContentProtobuf = function(string) {
return self.PushMessageContentProtobuf.decode(btoa(string));
}
self.WhisperMessageProtobuf = dcodeIO.ProtoBuf.loadProtoFile("protos/WhisperTextProtocol.proto").build("textsecure.WhisperMessage");
self.decodeWhisperMessageProtobuf = function(string) {
return self.WhisperMessageProtobuf.decode(btoa(string));
}
self.PreKeyWhisperMessageProtobuf = dcodeIO.ProtoBuf.loadProtoFile("protos/WhisperTextProtocol.proto").build("textsecure.PreKeyWhisperMessage");
self.decodePreKeyWhisperMessageProtobuf = function(string) {
return self.PreKeyWhisperMessageProtobuf.decode(btoa(string));
}
self.KeyExchangeMessageProtobuf = dcodeIO.ProtoBuf.loadProtoFile("protos/WhisperTextProtocol.proto").build("textsecure.KeyExchangeMessage");
self.decodeKeyExchangeMessageProtobuf = function(string) {
return self.KeyExchangeMessageProtobuf.decode(btoa(string));
}
return self;
}();
// Number formatting utils
window.textsecure.utils = function() {
var self = {};
/****************************************
*** Number conversion/checking stuff ***
****************************************/
self.getAllRegionCodes = function() {
return {"AD":"Andorra","AE":"United Arab Emirates","AF":"Afghanistan","AG":"Antigua and Barbuda","AI":"Anguilla","AL":"Albania","AM":"Armenia","AO":"Angola","AR":"Argentina","AS":"AmericanSamoa","AT":"Austria","AU":"Australia","AW":"Aruba","AX":"Åland Islands","AZ":"Azerbaijan","BA":"Bosnia and Herzegovina","BB":"Barbados","BD":"Bangladesh","BE":"Belgium","BF":"Burkina Faso","BG":"Bulgaria","BH":"Bahrain","BI":"Burundi","BJ":"Benin","BL":"Saint Barthélemy","BM":"Bermuda","BN":"Brunei Darussalam","BO":"Bolivia, Plurinational State of","BR":"Brazil","BS":"Bahamas","BT":"Bhutan","BW":"Botswana","BY":"Belarus","BZ":"Belize","CA":"Canada","CC":"Cocos (Keeling) Islands","CD":"Congo, The Democratic Republic of the","CF":"Central African Republic","CG":"Congo","CH":"Switzerland","CI":"Cote d'Ivoire","CK":"Cook Islands","CL":"Chile","CM":"Cameroon","CN":"China","CO":"Colombia","CR":"Costa Rica","CU":"Cuba","CV":"Cape Verde","CX":"Christmas Island","CY":"Cyprus","CZ":"Czech Republic","DE":"Germany","DJ":"Djibouti","DK":"Denmark","DM":"Dominica","DO":"Dominican Republic","DZ":"Algeria","EC":"Ecuador","EE":"Estonia","EG":"Egypt","ER":"Eritrea","ES":"Spain","ET":"Ethiopia","FI":"Finland","FJ":"Fiji","FK":"Falkland Islands (Malvinas)","FM":"Micronesia, Federated States of","FO":"Faroe Islands","FR":"France","GA":"Gabon","GB":"United Kingdom","GD":"Grenada","GE":"Georgia","GF":"French Guiana","GG":"Guernsey","GH":"Ghana","GI":"Gibraltar","GL":"Greenland","GM":"Gambia","GN":"Guinea","GP":"Guadeloupe","GQ":"Equatorial Guinea","GR":"Ελλάδα","GT":"Guatemala","GU":"Guam","GW":"Guinea-Bissau","GY":"Guyana","HK":"Hong Kong","HN":"Honduras","HR":"Croatia","HT":"Haiti","HU":"Magyarország","ID":"Indonesia","IE":"Ireland","IL":"Israel","IM":"Isle of Man","IN":"India","IO":"British Indian Ocean Territory","IQ":"Iraq","IR":"Iran, Islamic Republic of","IS":"Iceland","IT":"Italy","JE":"Jersey","JM":"Jamaica","JO":"Jordan","JP":"Japan","KE":"Kenya","KG":"Kyrgyzstan","KH":"Cambodia","KI":"Kiribati","KM":"Comoros","KN":"Saint Kitts and Nevis","KP":"Korea, Democratic People's Republic of","KR":"Korea, Republic of","KW":"Kuwait","KY":"Cayman Islands","KZ":"Kazakhstan","LA":"Lao People's Democratic Republic","LB":"Lebanon","LC":"Saint Lucia","LI":"Liechtenstein","LK":"Sri Lanka","LR":"Liberia","LS":"Lesotho","LT":"Lithuania","LU":"Luxembourg","LV":"Latvia","LY":"Libyan Arab Jamahiriya","MA":"Morocco","MC":"Monaco","MD":"Moldova, Republic of","ME":"Црна Гора","MF":"Saint Martin","MG":"Madagascar","MH":"Marshall Islands","MK":"Macedonia, The Former Yugoslav Republic of","ML":"Mali","MM":"Myanmar","MN":"Mongolia","MO":"Macao","MP":"Northern Mariana Islands","MQ":"Martinique","MR":"Mauritania","MS":"Montserrat","MT":"Malta","MU":"Mauritius","MV":"Maldives","MW":"Malawi","MX":"Mexico","MY":"Malaysia","MZ":"Mozambique","NA":"Namibia","NC":"New Caledonia","NE":"Niger","NF":"Norfolk Island","NG":"Nigeria","NI":"Nicaragua","NL":"Netherlands","NO":"Norway","NP":"Nepal","NR":"Nauru","NU":"Niue","NZ":"New Zealand","OM":"Oman","PA":"Panama","PE":"Peru","PF":"French Polynesia","PG":"Papua New Guinea","PH":"Philippines","PK":"Pakistan","PL":"Polska","PM":"Saint Pierre and Miquelon","PR":"Puerto Rico","PS":"Palestinian Territory, Occupied","PT":"Portugal","PW":"Palau","PY":"Paraguay","QA":"Qatar","RE":"Réunion","RO":"Romania","RS":"Србија","RU":"Russia","RW":"Rwanda","SA":"Saudi Arabia","SB":"Solomon Islands","SC":"Seychelles","SD":"Sudan","SE":"Sweden","SG":"Singapore","SH":"Saint Helena, Ascension and Tristan Da Cunha","SI":"Slovenia","SJ":"Svalbard and Jan Mayen","SK":"Slovakia","SL":"Sierra Leone","SM":"San Marino","SN":"Senegal","SO":"Somalia","SR":"Suriname","ST":"Sao Tome and Principe","SV":"El Salvador","SY":"Syrian Arab Republic","SZ":"Swaziland","TC":"Turks and Caicos Islands","TD":"Chad","TG":"Togo","TH":"Thailand","TJ":"Tajikistan","TK":"Tokelau","TL":"Timor-Leste","TM":"Turkmenistan","TN":"Tunisia","TO":"Tonga","TR":"Turkey","TT":"Trinidad and Tobago","TV":"Tuvalu","TW":"Taiwan, Province of China","TZ":"Tanzania, United Republic of","UA":"Ukraine","UG":"Uganda","US":"United States","UY":"Uruguay","UZ":"Uzbekistan","VA":"Holy See (Vatican City State)","VC":"Saint Vincent and the Grenadines","VE":"Venezuela","VG":"Virgin Islands, British","VI":"Virgin Islands, U.S.","VN":"Viet Nam","VU":"Vanuatu","WF":"Wallis and Futuna","WS":"Samoa","YE":"Yemen","YT":"Mayotte","ZA":"South Africa","ZM":"Zambia","ZW":"Zimbabwe"};
};
self.getRegionCodeForCountryCode = function(countryCode) {
return libphonenumber.getRegionCodeForCountryCode(countryCode);
};
self.getRegionCodeForNumber = function(number) {
try {
var parsedNumber = libphonenumber.parse(number);
return libphonenumber.getRegionCodeForNumber(parsedNumber);
} catch(e) {
return "ZZ";
}
};
self.getCountryCodeForRegion = function(regionCode) {
var cc = libphonenumber.getCountryCodeForRegion(regionCode);
return (cc != 0) ? cc : "";
};
self.verifyNumber = function(number, regionCode) {
var parsedNumber = libphonenumber.parse(number, regionCode);
if(!regionCode || regionCode == 'ZZ')
regionCode = libphonenumber.getRegionCodeForNumber(parsedNumber);
var isValidNumber = libphonenumber.isValidNumber(parsedNumber);
var isValidNumberForRegion = libphonenumber.isValidNumberForRegion(parsedNumber, regionCode);
if (isValidNumber && isValidNumberForRegion) {
return libphonenumber.format(parsedNumber, libphonenumber.PhoneNumberFormat.E164);
} else {
throw new Error("The number seems not to be valid.");
}
};
self.unencodeNumber = function(number) {
return number.split(".");
};
/**************************
*** JSON'ing Utilities ***
**************************/
function ensureStringed(thing) {
if (getStringable(thing))
return getString(thing);
else if (thing instanceof Array) {
var res = [];
for (var i = 0; i < thing.length; i++)
res[i] = ensureStringed(thing[i]);
return res;
} else if (thing === Object(thing)) {
var res = {};
for (key in thing)
res[key] = ensureStringed(thing[key]);
return res;
}
throw new Error("unsure of how to jsonify object of type " + typeof thing);
}
self.jsonThing = function(thing) {
return JSON.stringify(ensureStringed(thing));
}
return self;
}();
window.textsecure.throwHumanError = function(error, type, humanError) {
var e = new Error(error);
if (type !== undefined)
e.name = type;
e.humanError = humanError;
throw e;
}
/************************************************
*** Utilities to store data in local storage ***
************************************************/
window.textsecure.storage = function() {
var self = {};
/*****************************
*** Base Storage Routines ***
*****************************/
self.putEncrypted = function(key, value) {
//TODO
if (value === undefined)
throw new Error("Tried to store undefined");
localStorage.setItem("e" + key, textsecure.utils.jsonThing(value));
}
self.getEncrypted = function(key, defaultValue) {
//TODO
var value = localStorage.getItem("e" + key);
if (value === null)
return defaultValue;
return JSON.parse(value);
}
self.removeEncrypted = function(key) {
localStorage.removeItem("e" + key);
}
self.putUnencrypted = function(key, value) {
if (value === undefined)
throw new Error("Tried to store undefined");
localStorage.setItem("u" + key, textsecure.utils.jsonThing(value));
}
self.getUnencrypted = function(key, defaultValue) {
var value = localStorage.getItem("u" + key);
if (value === null)
return defaultValue;
return JSON.parse(value);
}
self.removeUnencrypted = function(key) {
localStorage.removeItem("u" + key);
}
/**********************
*** Device Storage ***
**********************/
self.devices = function() {
var self = {};
self.saveDeviceObject = function(deviceObject) {
if (deviceObject.identityKey === undefined || deviceObject.registrationId === undefined || deviceObject.encodedNumber === undefined)
throw new Error("Tried to store invalid deviceObject");
var number = textsecure.utils.unencodeNumber(deviceObject.encodedNumber)[0];
var map = textsecure.storage.getEncrypted("devices" + number);
if (map === undefined)
map = { devices: [deviceObject], identityKey: deviceObject.identityKey };
else if (map.identityKey != getString(deviceObject.identityKey))
throw new Error("Identity key changed");
else {
var updated = false;
for (i in map.devices) {
if (map.devices[i].encodedNumber == deviceObject.encodedNumber) {
map.devices[i] = deviceObject;
updated = true;
}
}
if (!updated)
map.devices.push(deviceObject);
}
textsecure.storage.putEncrypted("devices" + number, map);
}
self.getDeviceObjectsForNumber = function(number) {
var map = textsecure.storage.getEncrypted("devices" + number);
return map === undefined ? [] : map.devices;
}
self.getDeviceObject = function(encodedNumber) {
var number = textsecure.utils.unencodeNumber(encodedNumber);
var devices = self.getDeviceObjectsForNumber(number[0]);
if (devices === undefined)
return undefined;
for (i in devices)
if (devices[i].encodedNumber == encodedNumber)
return devices[i];
return undefined;
}
self.removeDeviceIdsForNumber = function(number, deviceIdsToRemove) {
var map = textsecure.storage.getEncrypted("devices" + number);
if (map === undefined)
throw new Error("Tried to remove device for unknown number");
var newDevices = [];
var devicesRemoved = 0;
for (i in map.devices) {
var keep = true;
for (j in deviceIdsToRemove)
if (map.devices[i].encodedNumber == number + "." + deviceIdsToRemove[j])
keep = false;
if (keep)
newDevices.push(map.devices[i]);
else
devicesRemoved++;
}
if (devicesRemoved != deviceIdsToRemove.length)
throw new Error("Tried to remove unknown device");
}
return self;
}();
/*********************
*** Group Storage ***
*********************/
self.groups = function() {
var self = {};
var addGroupToNumber = function(groupId, number) {
var membership = textsecure.storage.getEncrypted("groupMembership" + number, [groupId]);
if (membership.indexOf(groupId) < 0)
membership.push(groupId);
textsecure.storage.putEncrypted("groupMembership" + number, membership);
}
var removeGroupFromNumber = function(groupId, number) {
var membership = textsecure.storage.getEncrypted("groupMembership" + number, [groupId]);
membership = membership.filter(function(group) { return group != groupId; });
if (membership.length == 0)
textsecure.storage.removeEncrypted("groupMembership" + number);
else
textsecure.storage.putEncrypted("groupMembership" + number, membership);
}
self.getGroupListForNumber = function(number) {
return textsecure.storage.getEncrypted("groupMembership" + number, []);
}
self.createNewGroup = function(numbers, groupId) {
if (groupId === undefined) {
while (textsecure.storage.getEncrypted("group" + groupId) !== undefined)
groupId = new Uint32Array(textsecure.crypto.getRandomBytes(4))[0];
} else if (textsecure.storage.getEncrypted("group" + groupId) !== undefined)
throw new Error("Tried to recreate group");
var me = textsecure.utils.unencodeNumber(textsecure.storage.getUnencrypted("number_id"))[0];
var haveMe = false;
var finalNumbers = [];
for (i in numbers) {
var number = textsecure.utils.verifyNumber(numbers[i]);
if (number == me)
haveMe = true;
if (finalNumbers.indexOf(number) < 0) {
finalNumbers.push(number);
addGroupToNumber(groupId, number);
}
}
if (!haveMe)
finalNumbers.push(me);
textsecure.storage.putEncrypted("group" + groupId, {numbers: finalNumbers});
return {id: groupId, numbers: finalNumbers};
}
self.getNumbers = function(groupId) {
var group = textsecure.storage.getEncrypted("group" + groupId);
if (group === undefined)
return undefined;
return group.numbers;
}
self.removeNumber = function(groupId, number) {
var group = textsecure.storage.getEncrypted("group" + groupId);
if (group === undefined)
return undefined;
try {
number = textsecure.utils.verifyNumber(number);
} catch (e) {
return group.numbers;
}
var me = textsecure.utils.unencodeNumber(textsecure.storage.getUnencrypted("number_id"))[0];
if (number == me)
throw new Error("Cannot remove ourselves from a group, leave the group instead");
var i = group.numbers.indexOf(number);
if (i > -1) {
group.numbers.slice(i, 1);
textsecure.storage.putEncrypted("group" + groupId, group);
removeGroupFromNumber(groupId, number);
}
return group.numbers;
}
self.addNumbers = function(groupId, numbers) {
var group = textsecure.storage.getEncrypted("group" + groupId);
if (group === undefined)
return undefined;
for (i in numbers) {
var number = textsecure.utils.verifyNumber(numbers[i]);
if (group.numbers.indexOf(number) < 0) {
group.numbers.push(number);
addGroupToNumber(groupId, number);
}
}
textsecure.storage.putEncrypted("group" + groupId, group);
return group.numbers;
}
self.deleteGroup = function(groupId) {
textsecure.storage.removeEncrypted("group" + groupId);
}
self.getGroup = function(groupId) {
var group = textsecure.storage.getEncrypted("group" + groupId);
if (group === undefined)
return undefined;
return { id: groupId, numbers: group.numbers }; //TODO: avatar/name tracking
}
return self;
}();
return self;
}();
/**********************
*** NaCL Interface ***
**********************/
window.textsecure.nacl = function() {
var self = {};
self.USE_NACL = true;
var onLoadCallbacks = [];
var naclLoaded = 0;
self.registerOnLoadFunction = function(func) {
if (naclLoaded || !self.USE_NACL) {
func();
return;
}
onLoadCallbacks[onLoadCallbacks.length] = func;
}
var naclMessageNextId = 0;
var naclMessageIdCallbackMap = {};
window.moduleDidLoad = function() {
common.hideModule();
naclLoaded = 1;
for (var i = 0; i < onLoadCallbacks.length; i++)
onLoadCallbacks[i]();
onLoadCallbacks = [];
}
window.handleMessage = function(message) {
naclMessageIdCallbackMap[message.data.call_id](message.data);
}
self.postNaclMessage = function(message) {
if (!self.USE_NACL)
throw new Error("Attempted to make NaCL call with !USE_NACL?");
return new Promise(function(resolve) {
naclMessageIdCallbackMap[naclMessageNextId] = resolve;
message.call_id = naclMessageNextId++;
common.naclModule.postMessage(message);
});
}
return self;
}();
//TODO: Some kind of textsecure.init(use_nacl)
window.textsecure.registerOnLoadFunction = window.textsecure.nacl.registerOnLoadFunction;
window.textsecure.replay = function() {
var self = {};
self.REPLAY_FUNCS = {
SEND_MESSAGE: 1,
INIT_SESSION: 2,
}
var functions = {};
self.registerReplayFunction = function(func, functionCode) {
functions[functionCode] = func;
}
self.replayError = function(replayData) {
var args = Array.prototype.slice.call(arguments);
args.shift();
args = replayData.args.concat(args);
functions[replayData.replayFunction].apply(window, args);
}
self.createReplayableError = function(shortMsg, longMsg, replayFunction, args) {
var e = new Error(shortMsg);
e.name = "ReplayableError";
e.humanError = e.longMessage = longMsg;
e.replayData = { replayFunction: replayFunction, args: args };
e.replay = function() {
self.replayError(e.replayData);
}
return e;
}
return self;
}();
// message_callback({message: decryptedMessage, pushMessage: server-providedPushMessage})
window.textsecure.subscribeToPush = function() {
var subscribeToPushMessageSemaphore = 0;
return function(message_callback) {
subscribeToPushMessageSemaphore++;
if (subscribeToPushMessageSemaphore <= 0)
return;
var socket = textsecure.api.getWebsocket();
var pingInterval;
//TODO: GUI
socket.onerror = function(socketEvent) {
console.log('Server is down :(');
clearInterval(pingInterval);
subscribeToPushMessageSemaphore--;
setTimeout(function() { textsecure.subscribeToPush(message_callback); }, 60000);
};
socket.onclose = function(socketEvent) {
console.log('Server closed :(');
clearInterval(pingInterval);
subscribeToPushMessageSemaphore--;
setTimeout(function() { textsecure.subscribeToPush(message_callback); }, 60000);
};
socket.onopen = function(socketEvent) {
console.log('Connected to server!');
pingInterval = setInterval(function() {
console.log("Sending server ping message.");
if (socket.readyState == socket.CLOSED || socket.readyState == socket.CLOSING) {
socket.close();
socket.onclose();
} else
socket.send(JSON.stringify({type: 2}));
}, 30000);
};
socket.onmessage = function(response) {
try {
var message = JSON.parse(response.data);
} catch (e) {
console.log('Error parsing server JSON message: ' + response.responseBody.split("|")[1]);
return;
}
if (message.type == 3) {
console.log("Got pong message");
} else if (message.type === undefined && message.id !== undefined) {
textsecure.crypto.decryptWebsocketMessage(message.message).then(function(plaintext) {
var proto = textsecure.protos.decodeIncomingPushMessageProtobuf(getString(plaintext));
// After this point, a) decoding errors are not the server's fault, and
// b) we should handle them gracefully and tell the user they received an invalid message
console.log("Successfully decoded message with id: " + message.id);
socket.send(JSON.stringify({type: 1, id: message.id}));
return textsecure.crypto.handleIncomingPushMessageProto(proto).then(function(decrypted) {
// Now that its decrypted, validate the message and clean it up for consumer processing
// Note that messages may (generally) only perform one action and we ignore remaining fields
// after the first action.
if ((decrypted.flags & textsecure.protos.PushMessageContentProtobuf.Flags.END_SESSION)
== textsecure.protos.PushMessageContentProtobuf.Flags.END_SESSION)
return;
if (decrypted.flags != 0)
throw new Error("Unknown flags in message");
var handleAttachment = function(attachment) {
return textsecure.api.getAttachment(attachment.id).then(function(encryptedBin) {
return textsecure.crypto.decryptAttachment(encryptedBin, toArrayBuffer(attachment.key)).then(function(decryptedBin) {
attachment.decrypted = decryptedBin;
});
});
};
var promises = [];
if (decrypted.group !== null) {
var existingGroup = textsecure.storage.groups.getNumbers(decrypted.group.id);
if (existingGroup === undefined) {
if (decrypted.group.type != textsecure.protos.PushMessageContentProtobuf.GroupContext.UPDATE)
throw new Error("Got message for unknown group");
textsecure.storage.groups.createNewGroup(decrypted.group.members, decrypted.group.id);
} else {
var fromIndex = existingGroup.indexOf(proto.source);
if (fromIndex < 0) //TODO: This could be indication of a race...
throw new Error("Sender was not a member of the group they were sending from");
switch(decrypted.group.type) {
case textsecure.protos.PushMessageContentProtobuf.GroupContext.UPDATE:
if (decrypted.group.avatar !== null)
promises.push(handleAttachment(decrypted.group.avatar));
if (existingGroup.filter(function(number) { decrypted.group.members.indexOf(number) < 0 }).length != 0)
throw new Error("Attempted to remove numbers from group with an UPDATE");
decrypted.group.added = decrypted.group.members.filter(function(number) { return existingGroup.indexOf(number) < 0; });
var newGroup = textsecure.storage.groups.addNumbers(decrypted.group.id, decrypted.group.added);
if (newGroup.length != decrypted.group.members.length ||
newGroup.filter(function(number) { return decrypted.group.members.indexOf(number) < 0; }).length != 0)
throw new Error("Error calculating group member difference");
//TODO: Also follow this path if avatar + name haven't changed (ie we should start storing those)
if (decrypted.group.avatar === null && decrypted.group.added.length == 0 && decrypted.group.name === null)
return;
//TODO: Strictly verify all numbers (ie dont let verifyNumber do any user-magic tweaking)
decrypted.body = null;
decrypted.attachments = [];
break;
case textsecure.protos.PushMessageContentProtobuf.GroupContext.QUIT:
textsecure.storage.groups.removeNumber(decrypted.group.id, proto.source);
decrypted.body = null;
decrypted.attachments = [];
case textsecure.protos.PushMessageContentProtobuf.GroupContext.DELIVER:
decrypted.group.name = null;
decrypted.group.members = [];
decrypted.group.avatar = null;
break;
default:
throw new Error("Unknown group message type");
}
}
}
for (i in decrypted.attachments)
promises.push(handleAttachment(decrypted.attachments[i]));
return Promise.all(promises).then(function() {
message_callback({pushMessage: proto, message: decrypted});
});
})
}).catch(function(e) {
// TODO: Show "Invalid message" messages?
console.log("Error handling incoming message: ");
console.log(e);
});
}
};
}
}();
window.textsecure.register = function() {
return function(number, verificationCode, singleDevice, stepDone) {
var signalingKey = textsecure.crypto.getRandomBytes(32 + 20);
textsecure.storage.putEncrypted('signaling_key', signalingKey);
var password = btoa(getString(textsecure.crypto.getRandomBytes(16)));
password = password.substring(0, password.length - 2);
textsecure.storage.putEncrypted("password", password);
var registrationId = new Uint16Array(textsecure.crypto.getRandomBytes(2))[0];
registrationId = registrationId & 0x3fff;
textsecure.storage.putUnencrypted("registrationId", registrationId);
return textsecure.api.confirmCode(number, verificationCode, password, signalingKey, registrationId, singleDevice).then(function(response) {
if (singleDevice)
response = 1;
var numberId = number + "." + response;
textsecure.storage.putUnencrypted("number_id", numberId);
textsecure.storage.putUnencrypted("regionCode", textsecure.utils.getRegionCodeForNumber(number));
stepDone(1);
if (!singleDevice) {
//TODO: Do things???
stepDone(2);
}
return textsecure.crypto.generateKeys().then(function(keys) {
stepDone(3);
return textsecure.api.registerKeys(keys).then(function() {
stepDone(4);
});
});
});
}
}();