447 lines
20 KiB
JavaScript
447 lines
20 KiB
JavaScript
/*
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* vim: ts=4:sw=4:expandtab
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*/
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function MessageSender(url, username, password) {
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this.server = new TextSecureServer(url, username, password);
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}
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MessageSender.prototype = {
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constructor: MessageSender,
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// message == DataMessage or ContentMessage proto
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sendMessageToDevices: function(timestamp, number, deviceObjectList, message) {
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var relay = deviceObjectList[0].relay;
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for (var i=1; i < deviceObjectList.length; ++i) {
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if (deviceObjectList[i].relay !== relay) {
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throw new Error("Mismatched relays for number " + number);
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}
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}
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return Promise.all(deviceObjectList.map(function(device) {
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return textsecure.protocol_wrapper.encryptMessageFor(device, message).then(function(encryptedMsg) {
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return textsecure.protocol_wrapper.getRegistrationId(device.encodedNumber).then(function(registrationId) {
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return textsecure.storage.devices.removeTempKeysFromDevice(device.encodedNumber).then(function() {
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var json = {
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type: encryptedMsg.type,
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destinationDeviceId: textsecure.utils.unencodeNumber(device.encodedNumber)[1],
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destinationRegistrationId: registrationId,
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content: encryptedMsg.body,
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timestamp: timestamp
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};
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if (device.relay !== undefined) {
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json.relay = device.relay;
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}
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return json;
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});
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});
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});
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})).then(function(jsonData) {
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var legacy = (message instanceof textsecure.protobuf.DataMessage);
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return this.sendMessageRequest(number, jsonData, legacy);
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}.bind(this));
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},
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sendMessageRequest: function(number, jsonData, legacy) {
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return this.server.sendMessages(number, jsonData, legacy).catch(function(e) {
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if (e.name === 'HTTPError' && (e.code !== 409 && e.code !== 410)) {
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throw new textsecure.SendMessageNetworkError(number, jsonData, legacy, e);
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}
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throw e;
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});
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},
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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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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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sendMessageProto: function(timestamp, numbers, message, callback) {
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var numbersCompleted = 0;
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var errors = [];
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var successfulNumbers = [];
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var numberCompleted = function() {
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numbersCompleted++;
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if (numbersCompleted >= numbers.length)
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callback({success: successfulNumbers, failure: errors});
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};
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var registerError = function(number, reason, error) {
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if (!error || error.name === 'HTTPError') {
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error = new textsecure.OutgoingMessageError(number, message.toArrayBuffer(), timestamp, error);
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}
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error.number = number;
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error.reason = reason;
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errors[errors.length] = error;
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numberCompleted();
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};
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var reloadDevicesAndSend = function(number, recurse) {
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return function() {
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return textsecure.storage.devices.getDeviceObjectsForNumber(number).then(function(devicesForNumber) {
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if (devicesForNumber.length == 0)
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return registerError(number, "Got empty device list when loading device keys", null);
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doSendMessage(number, devicesForNumber, recurse);
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});
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}
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};
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var getKeysForNumber = function(number, updateDevices) {
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var handleResult = function(response) {
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return Promise.all(response.devices.map(function(device) {
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if (updateDevices === undefined || updateDevices.indexOf(device.deviceId) > -1)
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return textsecure.storage.devices.saveKeysToDeviceObject({
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encodedNumber: number + "." + device.deviceId,
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identityKey: response.identityKey,
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preKey: device.preKey.publicKey,
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preKeyId: device.preKey.keyId,
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signedKey: device.signedPreKey.publicKey,
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signedKeyId: device.signedPreKey.keyId,
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signedKeySignature: device.signedPreKey.signature,
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registrationId: device.registrationId
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}).catch(function(error) {
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if (error.message === "Identity key changed") {
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error = new textsecure.OutgoingIdentityKeyError(number, message.toArrayBuffer(), timestamp, error.identityKey);
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registerError(number, "Identity key changed", error);
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}
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throw error;
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});
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}));
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};
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if (updateDevices === undefined) {
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return this.server.getKeysForNumber(number).then(handleResult);
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} else {
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var promises = updateDevices.map(function(device) {
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return this.server.getKeysForNumber(number, device).then(handleResult);
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}.bind(this));
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return Promise.all(promises);
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}
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}.bind(this);
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var doSendMessage = function(number, devicesForNumber, recurse) {
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return this.sendMessageToDevices(timestamp, number, devicesForNumber, message).then(function(result) {
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successfulNumbers[successfulNumbers.length] = number;
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numberCompleted();
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}).catch(function(error) {
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if (error instanceof Error && error.name == "HTTPError" && (error.code == 410 || error.code == 409)) {
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if (!recurse)
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return registerError(number, "Hit retry limit attempting to reload device list", error);
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var p;
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if (error.code == 409) {
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p = textsecure.storage.devices.removeDeviceIdsForNumber(number, error.response.extraDevices);
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} else {
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p = Promise.all(error.response.staleDevices.map(function(deviceId) {
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return textsecure.protocol_wrapper.closeOpenSessionForDevice(number + '.' + deviceId);
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}));
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}
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p.then(function() {
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var resetDevices = ((error.code == 410) ? error.response.staleDevices : error.response.missingDevices);
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getKeysForNumber(number, resetDevices)
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.then(reloadDevicesAndSend(number, (error.code == 409)))
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.catch(function(error) {
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registerError(number, "Failed to reload device keys", error);
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});
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});
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} else {
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registerError(number, "Failed to create or send message", error);
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}
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});
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}.bind(this);
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numbers.forEach(function(number) {
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textsecure.storage.devices.getDeviceObjectsForNumber(number).then(function(devicesForNumber) {
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return Promise.all(devicesForNumber.map(function(device) {
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return textsecure.protocol_wrapper.hasOpenSession(device.encodedNumber).then(function(result) {
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if (!result)
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return getKeysForNumber(number, [parseInt(textsecure.utils.unencodeNumber(device.encodedNumber)[1])]);
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});
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})).then(function() {
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return textsecure.storage.devices.getDeviceObjectsForNumber(number).then(function(devicesForNumber) {
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if (devicesForNumber.length == 0) {
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getKeysForNumber(number, [1])
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.then(reloadDevicesAndSend(number, true))
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.catch(function(error) {
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registerError(number, "Failed to retreive new device keys for number " + number, error);
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});
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} else
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doSendMessage(number, devicesForNumber, true);
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});
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});
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});
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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.failure.length > 0)
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reject(res.failure);
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else
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resolve();
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});
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}.bind(this));
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},
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sendSyncMessage: function(message, 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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var sentMessage = new textsecure.protobuf.SyncMessage.Sent();
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sentMessage.timestamp = timestamp;
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sentMessage.message = message;
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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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},
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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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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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return new Promise(function(resolve, reject) {
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this.sendMessageProto(timestamp, numbers, proto, function(res) {
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if (res.failure.length > 0)
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reject(res.failure);
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else
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resolve();
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});
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}.bind(this)).then(this.sendSyncMessage.bind(this, proto, timestamp));
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},
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sendMessageToNumber: function(number, messageText, attachments, timestamp) {
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var proto = new textsecure.protobuf.DataMessage();
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proto.body = messageText;
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return Promise.all(attachments.map(this.makeAttachmentPointer.bind(this))).then(function(attachmentsArray) {
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proto.attachments = attachmentsArray;
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return this.sendIndividualProto(number, proto, timestamp).then(function() {
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return this.sendSyncMessage(proto, timestamp, number);
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}.bind(this));
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}.bind(this));
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},
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closeSession: function(number) {
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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, Date.now()).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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return textsecure.protocol_wrapper.closeOpenSessionForDevice(device.encodedNumber);
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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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var proto = new textsecure.protobuf.DataMessage();
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proto.body = messageText;
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proto.group = new textsecure.protobuf.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.GroupContext.Type.DELIVER;
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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 Promise.all(attachments.map(this.makeAttachmentPointer.bind(this))).then(function(attachmentsArray) {
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proto.attachments = attachmentsArray;
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return this.sendGroupProto(numbers, proto, timestamp);
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}.bind(this));
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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 = toArrayBuffer(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 = toArrayBuffer(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 = toArrayBuffer(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 = toArrayBuffer(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 = toArrayBuffer(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 = toArrayBuffer(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) {
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var sender = new MessageSender(url, username, password);
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textsecure.replay.registerFunction(sender.tryMessageAgain.bind(sender), textsecure.replay.Type.ENCRYPT_MESSAGE);
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textsecure.replay.registerFunction(sender.sendMessageRequest.bind(sender), textsecure.replay.Type.TRANSMIT_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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};
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textsecure.MessageSender.prototype = {
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constructor: textsecure.MessageSender
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};
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