654 lines
26 KiB
JavaScript
654 lines
26 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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this.expireTimer = options.expireTimer;
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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.expireTimer !== undefined && this.expireTimer !== null) {
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if (typeof this.expireTimer !== 'number' || !(this.expireTimer >= 0)) {
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throw new Error('Invalid expireTimer');
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}
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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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if (this.body) {
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proto.body = this.body;
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}
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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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if (this.expireTimer) {
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proto.expireTimer = this.expireTimer;
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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, ports, username, password) {
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this.server = new TextSecureServer(url, ports, username, password);
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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 = libsignal.crypto.getRandomBytes(64);
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var iv = libsignal.crypto.getRandomBytes(16);
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return textsecure.crypto.encryptAttachment(attachment.data, proto.key, iv).then(function(result) {
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return this.server.putAttachment(result.ciphertext).then(function(id) {
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proto.id = id;
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proto.contentType = attachment.contentType;
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proto.digest = result.digest;
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if (attachment.fileName) {
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proto.fileName = attachment.fileName;
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}
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if (attachment.size) {
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proto.size = attachment.size;
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}
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if (attachment.flags) {
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proto.flags = attachment.flags;
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}
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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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validateRetryContentMessage: function(content) {
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// We want at least one field set, but not more than one
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var count = 0;
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count += content.syncMessage ? 1 : 0;
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count += content.dataMessage ? 1 : 0;
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count += content.callMessage ? 1 : 0;
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count += content.nullMessage ? 1 : 0;
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if (count !== 1) {
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return false;
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}
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// It's most likely that dataMessage will be populated, so we look at it in detail
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var data = content.dataMessage;
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if (data && !data.attachments.length && !data.body && !data.expireTimer && !data.flags && !data.group) {
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return false;
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}
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return true;
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},
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getRetryProto: function(message, timestamp) {
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// If message was sent before v0.41.3 was released on Aug 7, then it was most certainly a DataMessage
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//
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// var d = new Date('2017-08-07T07:00:00.000Z');
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// d.getTime();
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var august7 = 1502089200000;
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if (timestamp < august7) {
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return textsecure.protobuf.DataMessage.decode(message);
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}
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// This is ugly. But we don't know what kind of proto we need to decode...
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try {
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// Simply decoding as a Content message may throw
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var proto = textsecure.protobuf.Content.decode(message);
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// But it might also result in an invalid object, so we try to detect that
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if (this.validateRetryContentMessage(proto)) {
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return proto;
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}
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return textsecure.protobuf.DataMessage.decode(message);
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} catch(e) {
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// If this call throws, something has really gone wrong, we'll fail to send
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return textsecure.protobuf.DataMessage.decode(message);
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}
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},
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tryMessageAgain: function(number, encodedMessage, timestamp) {
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var proto = this.getRetryProto(encodedMessage, timestamp);
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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 taskWithTimeout = textsecure.createTaskWithTimeout(runJob, 'queueJobForNumber ' + number);
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var runPrevious = this.pendingMessages[number] || Promise.resolve();
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var runCurrent = this.pendingMessages[number] = runPrevious.then(taskWithTimeout, taskWithTimeout);
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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 rejections = textsecure.storage.get('signedKeyRotationRejected', 0);
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if (rejections > 5) {
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throw new textsecure.SignedPreKeyRotationError(numbers, message.toArrayBuffer(), timestamp);
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}
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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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retrySendMessageProto: function(numbers, encodedMessage, timestamp) {
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var proto = textsecure.protobuf.DataMessage.decode(encodedMessage);
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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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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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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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createSyncMessage: function() {
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var syncMessage = new textsecure.protobuf.SyncMessage();
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// Generate a random int from 1 and 512
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var buffer = libsignal.crypto.getRandomBytes(1);
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var paddingLength = (new Uint8Array(buffer)[0] & 0x1ff) + 1;
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// Generate a random padding buffer of the chosen size
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syncMessage.padding = libsignal.crypto.getRandomBytes(paddingLength);
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return syncMessage;
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},
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sendSyncMessage: function(encodedDataMessage, timestamp, destination, expirationStartTimestamp) {
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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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if (expirationStartTimestamp) {
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sentMessage.expirationStartTimestamp = expirationStartTimestamp;
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}
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var syncMessage = this.createSyncMessage();
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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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getProfile: function(number) {
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return this.server.getProfile(number);
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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 = this.createSyncMessage();
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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 = this.createSyncMessage();
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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 = this.createSyncMessage();
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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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syncVerification: function(destination, state, identityKey) {
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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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// First send a null message to mask the sync message.
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var nullMessage = new textsecure.protobuf.NullMessage();
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// Generate a random int from 1 and 512
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var buffer = libsignal.crypto.getRandomBytes(1);
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var paddingLength = (new Uint8Array(buffer)[0] & 0x1ff) + 1;
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// Generate a random padding buffer of the chosen size
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nullMessage.padding = libsignal.crypto.getRandomBytes(paddingLength);
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var contentMessage = new textsecure.protobuf.Content();
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contentMessage.nullMessage = nullMessage;
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return this.sendIndividualProto(destination, contentMessage, Date.now()).then(function() {
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var verified = new textsecure.protobuf.Verified();
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verified.state = state;
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verified.destination = destination;
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verified.identityKey = identityKey;
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verified.nullMessage = nullMessage.padding;
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var syncMessage = this.createSyncMessage();
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syncMessage.verified = verified;
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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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}.bind(this));
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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, expireTimer) {
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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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expireTimer : expireTimer
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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 this.sendSyncMessage(proto.toArrayBuffer(), timestamp, number).then(function() {
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return textsecure.storage.protocol.getDeviceIds(number).then(function(deviceIds) {
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return Promise.all(deviceIds.map(function(deviceId) {
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var address = new libsignal.SignalProtocolAddress(number, deviceId);
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console.log('closing session for', address.toString());
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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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}.bind(this));
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},
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sendMessageToGroup: function(groupId, messageText, attachments, timestamp, expireTimer) {
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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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expireTimer : expireTimer,
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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();
|
|
proto.group = new textsecure.protobuf.GroupContext();
|
|
proto.group.id = stringToArrayBuffer(groupId);
|
|
proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
|
|
|
|
return textsecure.storage.groups.addNumbers(groupId, [number]).then(function(numbers) {
|
|
if (numbers === undefined)
|
|
return Promise.reject(new Error("Unknown Group"));
|
|
proto.group.members = numbers;
|
|
|
|
return this.sendGroupProto(numbers, proto);
|
|
}.bind(this));
|
|
},
|
|
|
|
setGroupName: function(groupId, name) {
|
|
var proto = new textsecure.protobuf.DataMessage();
|
|
proto.group = new textsecure.protobuf.GroupContext();
|
|
proto.group.id = stringToArrayBuffer(groupId);
|
|
proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
|
|
proto.group.name = name;
|
|
|
|
return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
|
|
if (numbers === undefined)
|
|
return Promise.reject(new Error("Unknown Group"));
|
|
proto.group.members = numbers;
|
|
|
|
return this.sendGroupProto(numbers, proto);
|
|
}.bind(this));
|
|
},
|
|
|
|
setGroupAvatar: function(groupId, avatar) {
|
|
var proto = new textsecure.protobuf.DataMessage();
|
|
proto.group = new textsecure.protobuf.GroupContext();
|
|
proto.group.id = stringToArrayBuffer(groupId);
|
|
proto.group.type = textsecure.protobuf.GroupContext.Type.UPDATE;
|
|
|
|
return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
|
|
if (numbers === undefined)
|
|
return Promise.reject(new Error("Unknown Group"));
|
|
proto.group.members = numbers;
|
|
|
|
return this.makeAttachmentPointer(avatar).then(function(attachment) {
|
|
proto.group.avatar = attachment;
|
|
return this.sendGroupProto(numbers, proto);
|
|
}.bind(this));
|
|
}.bind(this));
|
|
},
|
|
|
|
leaveGroup: function(groupId) {
|
|
var proto = new textsecure.protobuf.DataMessage();
|
|
proto.group = new textsecure.protobuf.GroupContext();
|
|
proto.group.id = stringToArrayBuffer(groupId);
|
|
proto.group.type = textsecure.protobuf.GroupContext.Type.QUIT;
|
|
|
|
return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
|
|
if (numbers === undefined)
|
|
return Promise.reject(new Error("Unknown Group"));
|
|
return textsecure.storage.groups.deleteGroup(groupId).then(function() {
|
|
return this.sendGroupProto(numbers, proto);
|
|
}.bind(this));
|
|
});
|
|
},
|
|
sendExpirationTimerUpdateToGroup: function(groupId, expireTimer, timestamp) {
|
|
return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
|
|
if (numbers === undefined)
|
|
return Promise.reject(new Error("Unknown Group"));
|
|
|
|
var me = textsecure.storage.user.getNumber();
|
|
numbers = numbers.filter(function(number) { return number != me; });
|
|
if (numbers.length === 0) {
|
|
return Promise.reject(new Error('No other members in the group'));
|
|
}
|
|
return this.sendMessage({
|
|
recipients : numbers,
|
|
timestamp : timestamp,
|
|
needsSync : true,
|
|
expireTimer : expireTimer,
|
|
flags : textsecure.protobuf.DataMessage.Flags.EXPIRATION_TIMER_UPDATE,
|
|
group: {
|
|
id: groupId,
|
|
type: textsecure.protobuf.GroupContext.Type.DELIVER
|
|
}
|
|
});
|
|
}.bind(this));
|
|
},
|
|
sendExpirationTimerUpdateToNumber: function(number, expireTimer, timestamp) {
|
|
var proto = new textsecure.protobuf.DataMessage();
|
|
return this.sendMessage({
|
|
recipients : [number],
|
|
timestamp : timestamp,
|
|
needsSync : true,
|
|
expireTimer : expireTimer,
|
|
flags : textsecure.protobuf.DataMessage.Flags.EXPIRATION_TIMER_UPDATE
|
|
});
|
|
}
|
|
};
|
|
|
|
window.textsecure = window.textsecure || {};
|
|
|
|
textsecure.MessageSender = function(url, ports, username, password) {
|
|
var sender = new MessageSender(url, ports, username, password);
|
|
textsecure.replay.registerFunction(sender.tryMessageAgain.bind(sender), textsecure.replay.Type.ENCRYPT_MESSAGE);
|
|
textsecure.replay.registerFunction(sender.retransmitMessage.bind(sender), textsecure.replay.Type.TRANSMIT_MESSAGE);
|
|
textsecure.replay.registerFunction(sender.sendMessage.bind(sender), textsecure.replay.Type.REBUILD_MESSAGE);
|
|
textsecure.replay.registerFunction(sender.retrySendMessageProto.bind(sender), textsecure.replay.Type.RETRY_SEND_MESSAGE_PROTO);
|
|
|
|
this.sendExpirationTimerUpdateToNumber = sender.sendExpirationTimerUpdateToNumber.bind(sender);
|
|
this.sendExpirationTimerUpdateToGroup = sender.sendExpirationTimerUpdateToGroup .bind(sender);
|
|
this.sendRequestGroupSyncMessage = sender.sendRequestGroupSyncMessage .bind(sender);
|
|
this.sendRequestContactSyncMessage = sender.sendRequestContactSyncMessage .bind(sender);
|
|
this.sendMessageToNumber = sender.sendMessageToNumber .bind(sender);
|
|
this.closeSession = sender.closeSession .bind(sender);
|
|
this.sendMessageToGroup = sender.sendMessageToGroup .bind(sender);
|
|
this.createGroup = sender.createGroup .bind(sender);
|
|
this.updateGroup = sender.updateGroup .bind(sender);
|
|
this.addNumberToGroup = sender.addNumberToGroup .bind(sender);
|
|
this.setGroupName = sender.setGroupName .bind(sender);
|
|
this.setGroupAvatar = sender.setGroupAvatar .bind(sender);
|
|
this.leaveGroup = sender.leaveGroup .bind(sender);
|
|
this.sendSyncMessage = sender.sendSyncMessage .bind(sender);
|
|
this.getProfile = sender.getProfile .bind(sender);
|
|
this.syncReadMessages = sender.syncReadMessages .bind(sender);
|
|
this.syncVerification = sender.syncVerification .bind(sender);
|
|
};
|
|
|
|
textsecure.MessageSender.prototype = {
|
|
constructor: textsecure.MessageSender
|
|
};
|