471 lines
19 KiB
JavaScript
471 lines
19 KiB
JavaScript
/*
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* vim: ts=4:sw=4:expandtab
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*/
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function stringToArrayBuffer(str) {
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if (typeof str !== 'string') {
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throw new Error('Passed non-string to stringToArrayBuffer');
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}
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var res = new ArrayBuffer(str.length);
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var uint = new Uint8Array(res);
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for (var i = 0; i < str.length; i++) {
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uint[i] = str.charCodeAt(i);
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}
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return res;
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}
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function Message(options) {
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this.body = options.body;
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this.attachments = options.attachments || [];
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this.group = options.group;
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this.flags = options.flags;
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this.recipients = options.recipients;
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this.timestamp = options.timestamp;
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this.needsSync = options.needsSync;
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if (!(this.recipients instanceof Array) || this.recipients.length < 1) {
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throw new Error('Invalid recipient list');
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}
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if (!this.group && this.recipients.length > 1) {
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throw new Error('Invalid recipient list for non-group');
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}
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if (typeof this.timestamp !== 'number') {
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throw new Error('Invalid timestamp');
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}
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if (this.attachments) {
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if (!(this.attachments instanceof Array)) {
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throw new Error('Invalid message attachments');
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}
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}
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if (this.flags !== undefined) {
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if (typeof this.flags !== 'number') {
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throw new Error('Invalid message flags');
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}
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}
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if (this.isEndSession()) {
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if (this.body !== null || this.group !== null || this.attachments.length !== 0) {
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throw new Error('Invalid end session message');
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}
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} else {
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if ( (typeof this.timestamp !== 'number') ||
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(this.body && typeof this.body !== 'string') ) {
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throw new Error('Invalid message body');
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}
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if (this.group) {
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if ( (typeof this.group.id !== 'string') ||
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(typeof this.group.type !== 'number') ) {
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throw new Error('Invalid group context');
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}
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}
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}
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}
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Message.prototype = {
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constructor: Message,
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isEndSession: function() {
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return (this.flags & textsecure.protobuf.DataMessage.Flags.END_SESSION);
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},
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toProto: function() {
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if (this.dataMessage instanceof textsecure.protobuf.DataMessage) {
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return this.dataMessage;
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}
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var proto = new textsecure.protobuf.DataMessage();
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proto.body = this.body;
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proto.attachments = this.attachmentPointers;
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if (this.flags) {
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proto.flags = this.flags;
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}
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if (this.group) {
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = stringToArrayBuffer(this.group.id);
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proto.group.type = this.group.type
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}
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this.dataMessage = proto;
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return proto;
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},
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toArrayBuffer: function() {
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return this.toProto().toArrayBuffer();
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}
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};
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function MessageSender(url, username, password, attachment_server_url) {
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this.server = new TextSecureServer(url, username, password, attachment_server_url);
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this.pendingMessages = {};
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}
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MessageSender.prototype = {
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constructor: MessageSender,
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makeAttachmentPointer: function(attachment) {
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if (typeof attachment !== 'object' || attachment == null) {
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return Promise.resolve(undefined);
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}
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var proto = new textsecure.protobuf.AttachmentPointer();
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proto.key = textsecure.crypto.getRandomBytes(64);
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var iv = textsecure.crypto.getRandomBytes(16);
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return textsecure.crypto.encryptAttachment(attachment.data, proto.key, iv).then(function(encryptedBin) {
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return this.server.putAttachment(encryptedBin).then(function(id) {
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proto.id = id;
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proto.contentType = attachment.contentType;
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return proto;
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});
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}.bind(this));
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},
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retransmitMessage: function(number, jsonData, timestamp) {
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var outgoing = new OutgoingMessage(this.server);
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return outgoing.transmitMessage(number, jsonData, timestamp);
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},
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tryMessageAgain: function(number, encodedMessage, timestamp) {
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var proto = textsecure.protobuf.DataMessage.decode(encodedMessage);
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return this.sendIndividualProto(number, proto, timestamp);
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},
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queueJobForNumber: function(number, runJob) {
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var runPrevious = this.pendingMessages[number] || Promise.resolve();
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var runCurrent = this.pendingMessages[number] = runPrevious.then(runJob, runJob);
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runCurrent.then(function() {
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if (this.pendingMessages[number] === runCurrent) {
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delete this.pendingMessages[number];
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}
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}.bind(this));
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},
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uploadMedia: function(message) {
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return Promise.all(
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message.attachments.map(this.makeAttachmentPointer.bind(this))
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).then(function(attachmentPointers) {
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message.attachmentPointers = attachmentPointers;
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}).catch(function(error) {
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if (error instanceof Error && error.name === 'HTTPError') {
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throw new textsecure.MessageError(message, error);
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} else {
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throw error;
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}
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});
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},
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sendMessage: function(attrs) {
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var message = new Message(attrs);
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return this.uploadMedia(message).then(function() {
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return new Promise(function(resolve, reject) {
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this.sendMessageProto(
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message.timestamp,
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message.recipients,
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message.toProto(),
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function(res) {
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res.dataMessage = message.toArrayBuffer();
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if (res.errors.length > 0) {
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reject(res);
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} else {
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resolve(res);
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}
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}
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);
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}.bind(this));
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}.bind(this));
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},
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sendMessageProto: function(timestamp, numbers, message, callback) {
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var outgoing = new OutgoingMessage(this.server, timestamp, numbers, message, callback);
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numbers.forEach(function(number) {
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this.queueJobForNumber(number, function() {
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return outgoing.sendToNumber(number);
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});
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}.bind(this));
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},
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sendIndividualProto: function(number, proto, timestamp) {
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return new Promise(function(resolve, reject) {
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this.sendMessageProto(timestamp, [number], proto, function(res) {
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if (res.errors.length > 0)
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reject(res);
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else
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resolve(res);
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});
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}.bind(this));
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},
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sendSyncMessage: function(encodedDataMessage, timestamp, destination) {
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var myNumber = textsecure.storage.user.getNumber();
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var myDevice = textsecure.storage.user.getDeviceId();
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if (myDevice == 1) {
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return Promise.resolve();
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}
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var dataMessage = textsecure.protobuf.DataMessage.decode(encodedDataMessage);
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var sentMessage = new textsecure.protobuf.SyncMessage.Sent();
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sentMessage.timestamp = timestamp;
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sentMessage.message = dataMessage;
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if (destination) {
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sentMessage.destination = destination;
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}
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var syncMessage = new textsecure.protobuf.SyncMessage();
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syncMessage.sent = sentMessage;
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var contentMessage = new textsecure.protobuf.Content();
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contentMessage.syncMessage = syncMessage;
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return this.sendIndividualProto(myNumber, contentMessage, Date.now());
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},
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sendRequestGroupSyncMessage: function() {
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var myNumber = textsecure.storage.user.getNumber();
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var myDevice = textsecure.storage.user.getDeviceId();
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if (myDevice != 1) {
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var request = new textsecure.protobuf.SyncMessage.Request();
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request.type = textsecure.protobuf.SyncMessage.Request.Type.GROUPS;
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var syncMessage = new textsecure.protobuf.SyncMessage();
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syncMessage.request = request;
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var contentMessage = new textsecure.protobuf.Content();
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contentMessage.syncMessage = syncMessage;
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return this.sendIndividualProto(myNumber, contentMessage, Date.now());
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}
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},
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sendRequestContactSyncMessage: function() {
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var myNumber = textsecure.storage.user.getNumber();
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var myDevice = textsecure.storage.user.getDeviceId();
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if (myDevice != 1) {
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var request = new textsecure.protobuf.SyncMessage.Request();
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request.type = textsecure.protobuf.SyncMessage.Request.Type.CONTACTS;
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var syncMessage = new textsecure.protobuf.SyncMessage();
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syncMessage.request = request;
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var contentMessage = new textsecure.protobuf.Content();
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contentMessage.syncMessage = syncMessage;
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return this.sendIndividualProto(myNumber, contentMessage, Date.now());
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}
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},
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syncReadMessages: function(reads) {
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var myNumber = textsecure.storage.user.getNumber();
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var myDevice = textsecure.storage.user.getDeviceId();
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if (myDevice != 1) {
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var syncMessage = new textsecure.protobuf.SyncMessage();
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syncMessage.read = [];
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for (var i = 0; i < reads.length; ++i) {
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var read = new textsecure.protobuf.SyncMessage.Read();
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read.timestamp = reads[i].timestamp;
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read.sender = reads[i].sender;
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syncMessage.read.push(read);
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}
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var contentMessage = new textsecure.protobuf.Content();
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contentMessage.syncMessage = syncMessage;
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return this.sendIndividualProto(myNumber, contentMessage, Date.now());
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}
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},
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sendGroupProto: function(numbers, proto, timestamp) {
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timestamp = timestamp || Date.now();
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var me = textsecure.storage.user.getNumber();
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numbers = numbers.filter(function(number) { return number != me; });
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if (numbers.length === 0) {
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return Promise.reject(new Error('No other members in the group'));
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}
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return new Promise(function(resolve, reject) {
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this.sendMessageProto(timestamp, numbers, proto, function(res) {
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res.dataMessage = proto.toArrayBuffer();
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if (res.errors.length > 0)
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reject(res);
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else
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resolve(res);
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}.bind(this));
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}.bind(this));
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},
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sendMessageToNumber: function(number, messageText, attachments, timestamp) {
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return this.sendMessage({
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recipients : [number],
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body : messageText,
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timestamp : timestamp,
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attachments : attachments,
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needsSync : true
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});
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},
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closeSession: function(number, timestamp) {
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console.log('sending end session');
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var proto = new textsecure.protobuf.DataMessage();
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proto.body = "TERMINATE";
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proto.flags = textsecure.protobuf.DataMessage.Flags.END_SESSION;
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return this.sendIndividualProto(number, proto, timestamp).then(function(res) {
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return textsecure.storage.devices.getDeviceObjectsForNumber(number).then(function(devices) {
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return Promise.all(devices.map(function(device) {
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console.log('closing session for', device.encodedNumber);
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var address = libsignal.SignalProtocolAddress.fromString(device.encodedNumber);
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var sessionCipher = new libsignal.SessionCipher(textsecure.storage.protocol, address);
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return sessionCipher.closeOpenSessionForDevice();
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})).then(function() {
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return res;
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});
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});
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});
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},
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sendMessageToGroup: function(groupId, messageText, attachments, timestamp) {
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return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
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if (numbers === undefined)
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return Promise.reject(new Error("Unknown Group"));
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var me = textsecure.storage.user.getNumber();
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numbers = numbers.filter(function(number) { return number != me; });
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if (numbers.length === 0) {
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return Promise.reject(new Error('No other members in the group'));
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}
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return this.sendMessage({
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recipients : numbers,
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body : messageText,
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timestamp : timestamp,
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attachments : attachments,
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needsSync : true,
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group: {
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id: groupId,
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type: textsecure.protobuf.GroupContext.Type.DELIVER
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}
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});
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}.bind(this));
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},
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createGroup: function(numbers, name, avatar) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.group = new textsecure.protobuf.GroupContext();
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return textsecure.storage.groups.createNewGroup(numbers).then(function(group) {
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proto.group.id = stringToArrayBuffer(group.id);
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var numbers = group.numbers;
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proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
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proto.group.members = numbers;
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proto.group.name = name;
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return this.makeAttachmentPointer(avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return this.sendGroupProto(numbers, proto).then(function() {
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return proto.group.id;
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});
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}.bind(this));
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}.bind(this));
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},
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updateGroup: function(groupId, name, avatar, numbers) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = stringToArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
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proto.group.name = name;
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return textsecure.storage.groups.addNumbers(groupId, numbers).then(function(numbers) {
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if (numbers === undefined) {
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return Promise.reject(new Error("Unknown Group"));
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}
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proto.group.members = numbers;
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return this.makeAttachmentPointer(avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return this.sendGroupProto(numbers, proto).then(function() {
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return proto.group.id;
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});
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}.bind(this));
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}.bind(this));
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},
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addNumberToGroup: function(groupId, number) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = stringToArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
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return textsecure.storage.groups.addNumbers(groupId, [number]).then(function(numbers) {
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if (numbers === undefined)
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return Promise.reject(new Error("Unknown Group"));
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proto.group.members = numbers;
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return this.sendGroupProto(numbers, proto);
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}.bind(this));
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},
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setGroupName: function(groupId, name) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = stringToArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
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proto.group.name = name;
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return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
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if (numbers === undefined)
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return Promise.reject(new Error("Unknown Group"));
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proto.group.members = numbers;
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return this.sendGroupProto(numbers, proto);
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}.bind(this));
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},
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setGroupAvatar: function(groupId, avatar) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = stringToArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
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return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
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if (numbers === undefined)
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return Promise.reject(new Error("Unknown Group"));
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proto.group.members = numbers;
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return this.makeAttachmentPointer(avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return this.sendGroupProto(numbers, proto);
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}.bind(this));
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}.bind(this));
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},
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leaveGroup: function(groupId) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = stringToArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.GroupContext.Type.QUIT;
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return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
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if (numbers === undefined)
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return Promise.reject(new Error("Unknown Group"));
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return textsecure.storage.groups.deleteGroup(groupId).then(function() {
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return this.sendGroupProto(numbers, proto);
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}.bind(this));
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});
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}
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};
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window.textsecure = window.textsecure || {};
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textsecure.MessageSender = function(url, username, password, attachment_server_url) {
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var sender = new MessageSender(url, username, password, attachment_server_url);
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textsecure.replay.registerFunction(sender.tryMessageAgain.bind(sender), textsecure.replay.Type.ENCRYPT_MESSAGE);
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textsecure.replay.registerFunction(sender.retransmitMessage.bind(sender), textsecure.replay.Type.TRANSMIT_MESSAGE);
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textsecure.replay.registerFunction(sender.sendMessage.bind(sender), textsecure.replay.Type.REBUILD_MESSAGE);
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this.sendRequestGroupSyncMessage = sender.sendRequestGroupSyncMessage .bind(sender);
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this.sendRequestContactSyncMessage = sender.sendRequestContactSyncMessage.bind(sender);
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this.sendMessageToNumber = sender.sendMessageToNumber .bind(sender);
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this.closeSession = sender.closeSession .bind(sender);
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this.sendMessageToGroup = sender.sendMessageToGroup .bind(sender);
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this.createGroup = sender.createGroup .bind(sender);
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this.updateGroup = sender.updateGroup .bind(sender);
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this.addNumberToGroup = sender.addNumberToGroup .bind(sender);
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this.setGroupName = sender.setGroupName .bind(sender);
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this.setGroupAvatar = sender.setGroupAvatar .bind(sender);
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this.leaveGroup = sender.leaveGroup .bind(sender);
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this.sendSyncMessage = sender.sendSyncMessage .bind(sender);
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this.syncReadMessages = sender.syncReadMessages .bind(sender);
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};
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textsecure.MessageSender.prototype = {
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constructor: textsecure.MessageSender
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};
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