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			523 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			JavaScript
		
	
			
		
		
	
	
			523 lines
		
	
	
		
			21 KiB
		
	
	
	
		
			JavaScript
		
	
| /*
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|  * vim: ts=4:sw=4:expandtab
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|  */
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| function MessageSender(url, ports, username, password, attachment_server_url) {
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|     this.server = new TextSecureServer(url, ports, username, password, attachment_server_url);
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|     this.pendingMessages = {};
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| }
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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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| 
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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(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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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 = 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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| 
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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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| 
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|             return this.sendIndividualProto(myNumber, contentMessage, Date.now());
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|         }
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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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| 
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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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| 
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|             return this.sendIndividualProto(myNumber, contentMessage, Date.now());
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|         }
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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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| 
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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 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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|     },
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| 
 | |
|     sendMessageToGroup: function(groupId, messageText, attachments, timestamp, expireTimer) {
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|         return textsecure.storage.groups.getNumbers(groupId).then(function(numbers) {
 | |
|             if (numbers === undefined)
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|                 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,
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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) {
 | |
|         var proto = new textsecure.protobuf.DataMessage();
 | |
|         proto.group = new textsecure.protobuf.GroupContext();
 | |
| 
 | |
|         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) {
 | |
|         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;
 | |
| 
 | |
|         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;
 | |
| 
 | |
|             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() {
 | |
|                     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) {
 | |
|         var proto = new textsecure.protobuf.DataMessage();
 | |
|         proto.group = new textsecure.protobuf.GroupContext();
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|         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));
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|     },
 | |
| 
 | |
|     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, attachment_server_url) {
 | |
|     var sender = new MessageSender(url, ports, username, password, attachment_server_url);
 | |
|     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);
 | |
| 
 | |
|     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.syncReadMessages                  = sender.syncReadMessages                 .bind(sender);
 | |
| };
 | |
| 
 | |
| textsecure.MessageSender.prototype = {
 | |
|     constructor: textsecure.MessageSender
 | |
| };
 |