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434 lines
19 KiB
JavaScript
434 lines
19 KiB
JavaScript
/* vim: ts=4:sw=4:expandtab
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// sendMessage(numbers = [], message = PushMessageContentProto, callback(success/failure map))
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window.textsecure.messaging = function() {
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'use strict';
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var self = {};
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function getKeysForNumber(number, updateDevices) {
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var handleResult = function(response) {
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for (var i in response.devices) {
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if (updateDevices === undefined || updateDevices.indexOf(response.devices[i].deviceId) > -1)
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textsecure.storage.devices.saveKeysToDeviceObject({
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encodedNumber: number + "." + response.devices[i].deviceId,
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identityKey: response.identityKey,
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preKey: response.devices[i].preKey.publicKey,
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preKeyId: response.devices[i].preKey.keyId,
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signedKey: response.devices[i].signedPreKey.publicKey,
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signedKeyId: response.devices[i].signedPreKey.keyId,
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registrationId: response.devices[i].registrationId
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});
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}
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};
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var promises = [];
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if (updateDevices !== undefined)
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for (var i in updateDevices)
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promises[promises.length] = textsecure.api.getKeysForNumber(number, updateDevices[i]).then(handleResult);
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else
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return textsecure.api.getKeysForNumber(number).then(handleResult);
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return Promise.all(promises);
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}
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// success_callback(server success/failure map), error_callback(error_msg)
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// message == PushMessageContentProto (NOT STRING)
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function sendMessageToDevices(timestamp, number, deviceObjectList, message, success_callback, error_callback) {
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var jsonData = [];
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var relay = undefined;
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var promises = [];
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var addEncryptionFor = function(i) {
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if (deviceObjectList[i].relay !== undefined) {
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if (relay === undefined)
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relay = deviceObjectList[i].relay;
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else if (relay != deviceObjectList[i].relay)
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return new Promise(function() { throw new Error("Mismatched relays for number " + number); });
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} else {
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if (relay === undefined)
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relay = "";
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else if (relay != "")
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return new Promise(function() { throw new Error("Mismatched relays for number " + number); });
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}
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return textsecure.protocol.encryptMessageFor(deviceObjectList[i], message).then(function(encryptedMsg) {
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jsonData[i] = {
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type: encryptedMsg.type,
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destinationDeviceId: textsecure.utils.unencodeNumber(deviceObjectList[i].encodedNumber)[1],
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destinationRegistrationId: deviceObjectList[i].registrationId,
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body: encryptedMsg.body,
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timestamp: timestamp
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};
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if (deviceObjectList[i].relay !== undefined)
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jsonData[i].relay = deviceObjectList[i].relay;
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});
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}
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for (var i = 0; i < deviceObjectList.length; i++)
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promises[i] = addEncryptionFor(i);
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return Promise.all(promises).then(function() {
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return textsecure.api.sendMessages(number, jsonData);
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});
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}
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var makeAttachmentPointer;
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var refreshGroup = function(number, groupId, devicesForNumber) {
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groupId = getString(groupId);
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var doUpdate = false;
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for (var i in devicesForNumber) {
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if (textsecure.storage.groups.needUpdateByDeviceRegistrationId(groupId, number, devicesForNumber[i].encodedNumber, devicesForNumber[i].registrationId))
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doUpdate = true;
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}
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if (!doUpdate)
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return Promise.resolve(true);
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var group = textsecure.storage.groups.getGroup(groupId);
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var numberIndex = group.numbers.indexOf(number);
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if (numberIndex < 0) // This is potentially a multi-message rare racing-AJAX race
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return Promise.reject("Tried to refresh group to non-member");
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(group.id);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.UPDATE;
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proto.group.members = group.numbers;
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proto.group.name = group.name === undefined ? null : group.name;
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if (group.avatar !== undefined) {
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return makeAttachmentPointer(group.avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return sendMessageToDevices(Date.now(), number, devicesForNumber, proto);
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});
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} else {
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return sendMessageToDevices(Date.now(), number, devicesForNumber, proto);
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}
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}
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var tryMessageAgain = function(number, encodedMessage, message_id) {
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var message = new Whisper.MessageCollection().add({id: message_id});
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message.fetch().then(function() {
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textsecure.storage.removeEncrypted("devices" + number);
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var proto = textsecure.protobuf.PushMessageContent.decode(encodedMessage, 'binary');
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sendMessageProto(message.get('sent_at'), [number], proto, function(res) {
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if (res.failure.length > 0)
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message.set('errors', res.failure);
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else
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message.set('errors', []);
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message.save().then(function(){
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extension.trigger('message', message); // notify frontend listeners
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});
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});
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});
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};
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textsecure.replay.registerFunction(tryMessageAgain, textsecure.replay.Type.SEND_MESSAGE);
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var 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, message, error) {
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if (error) {
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if (error.humanError)
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message = error.humanError;
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} else
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error = new Error(message);
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errors[errors.length] = { number: number, reason: message, error: error };
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numberCompleted();
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}
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var doSendMessage;
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var reloadDevicesAndSend = function(number, recurse) {
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return function() {
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var devicesForNumber = textsecure.storage.devices.getDeviceObjectsForNumber(number);
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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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doSendMessage = function(number, devicesForNumber, recurse) {
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var groupUpdate = Promise.resolve(true);
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if (message.group && message.group.id)
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groupUpdate = refreshGroup(number, message.group.id, devicesForNumber);
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return groupUpdate.then(function() {
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return 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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});
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}).catch(function(error) {
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if (error instanceof Error && error.name == "HTTPError" && (error.message == 410 || error.message == 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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if (error.message == 409)
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textsecure.storage.devices.removeDeviceIdsForNumber(number, error.response.extraDevices);
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var resetDevices = ((error.message == 410) ? error.response.staleDevices : error.response.missingDevices);
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getKeysForNumber(number, resetDevices)
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.then(reloadDevicesAndSend(number, false))
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.catch(function(error) {
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if (error.message !== "Identity key changed")
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registerError(number, "Failed to reload device keys", error);
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else {
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error = new textsecure.OutgoingIdentityKeyError(number, getString(message.encode()));
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registerError(number, "Identity key changed", 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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var getDevicesAndSendToNumber = function(number) {
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var devicesForNumber = textsecure.storage.devices.getDeviceObjectsForNumber(number);
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var promises = [];
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for (var j in devicesForNumber)
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if (devicesForNumber[j].registrationId === undefined)
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promises[promises.length] = getKeysForNumber(number, [parseInt(textsecure.utils.unencodeNumber(devicesForNumber[j].encodedNumber)[1])]);
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Promise.all(promises).then(function() {
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devicesForNumber = textsecure.storage.devices.getDeviceObjectsForNumber(number);
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if (devicesForNumber.length == 0) {
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getKeysForNumber(number)
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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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for (var i in numbers)
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getDevicesAndSendToNumber(numbers[i]);
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}
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makeAttachmentPointer = function(attachment) {
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var proto = new textsecure.protobuf.PushMessageContent.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.protocol.encryptAttachment(attachment.data, proto.key, iv).then(function(encryptedBin) {
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return textsecure.api.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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});
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}
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var sendIndividualProto = function(number, proto, timestamp) {
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return new Promise(function(resolve, reject) {
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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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});
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}
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var sendGroupProto = function(numbers, proto, timestamp) {
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timestamp = timestamp || Date.now();
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var me = textsecure.utils.unencodeNumber(textsecure.storage.getUnencrypted("number_id"))[0];
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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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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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});
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}
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self.sendMessageToNumber = function(number, messageText, attachments, timestamp) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.body = messageText;
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var promises = [];
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for (var i in attachments)
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promises.push(makeAttachmentPointer(attachments[i]));
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return Promise.all(promises).then(function(attachmentsArray) {
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proto.attachments = attachmentsArray;
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return sendIndividualProto(number, proto, timestamp);
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});
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}
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self.closeSession = function(number) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.body = "TERMINATE";
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proto.flags = textsecure.protobuf.PushMessageContent.Flags.END_SESSION;
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return sendIndividualProto(number, proto).then(function(res) {
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var devices = textsecure.storage.devices.getDeviceObjectsForNumber(number);
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for (var i in devices)
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textsecure.protocol.closeOpenSessionForDevice(devices[i].encodedNumber);
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return res;
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});
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}
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self.sendMessageToGroup = function(groupId, messageText, attachments, timestamp) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.body = messageText;
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.DELIVER;
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var numbers = textsecure.storage.groups.getNumbers(groupId);
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if (numbers === undefined)
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return new Promise(function(resolve, reject) { reject(new Error("Unknown Group")); });
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var promises = [];
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for (var i in attachments)
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promises.push(makeAttachmentPointer(attachments[i]));
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return Promise.all(promises).then(function(attachmentsArray) {
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proto.attachments = attachmentsArray;
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return sendGroupProto(numbers, proto, timestamp);
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});
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}
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self.createGroup = function(numbers, name, avatar) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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var group = textsecure.storage.groups.createNewGroup(numbers);
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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.PushMessageContent.GroupContext.Type.UPDATE;
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proto.group.members = numbers;
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proto.group.name = name;
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if (avatar !== undefined) {
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return makeAttachmentPointer(avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return sendGroupProto(numbers, proto).then(function() {
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return proto.group.id;
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});
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});
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} else {
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return sendGroupProto(numbers, proto).then(function() {
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return proto.group.id;
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});
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}
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}
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self.updateGroup = function(groupId, name, avatar, numbers) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.UPDATE;
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proto.group.name = name;
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var numbers = textsecure.storage.groups.addNumbers(groupId, numbers);
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if (numbers === undefined) {
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return new Promise(function(resolve, reject) { reject(new Error("Unknown Group")); });
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}
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proto.group.members = numbers;
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if (avatar !== undefined) {
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return makeAttachmentPointer(avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return sendGroupProto(numbers, proto).then(function() {
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return proto.group.id;
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});
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});
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} else {
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return sendGroupProto(numbers, proto).then(function() {
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return proto.group.id;
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});
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}
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}
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self.addNumberToGroup = function(groupId, number) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.UPDATE;
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var numbers = textsecure.storage.groups.addNumbers(groupId, [number]);
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if (numbers === undefined)
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return new Promise(function(resolve, reject) { reject(new Error("Unknown Group")); });
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proto.group.members = numbers;
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return sendGroupProto(numbers, proto);
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}
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self.setGroupName = function(groupId, name) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.UPDATE;
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proto.group.name = name;
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var numbers = textsecure.storage.groups.getNumbers(groupId);
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if (numbers === undefined)
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return new Promise(function(resolve, reject) { reject(new Error("Unknown Group")); });
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proto.group.members = numbers;
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return sendGroupProto(numbers, proto);
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}
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self.setGroupAvatar = function(groupId, avatar) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.UPDATE;
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var numbers = textsecure.storage.groups.getNumbers(groupId);
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if (numbers === undefined)
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return new Promise(function(resolve, reject) { reject(new Error("Unknown Group")); });
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proto.group.members = numbers;
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return makeAttachmentPointer(avatar).then(function(attachment) {
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proto.group.avatar = attachment;
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return sendGroupProto(numbers, proto);
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});
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}
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self.leaveGroup = function(groupId) {
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var proto = new textsecure.protobuf.PushMessageContent();
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proto.group = new textsecure.protobuf.PushMessageContent.GroupContext();
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proto.group.id = toArrayBuffer(groupId);
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proto.group.type = textsecure.protobuf.PushMessageContent.GroupContext.Type.QUIT;
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var numbers = textsecure.storage.groups.getNumbers(groupId);
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if (numbers === undefined)
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return new Promise(function(resolve, reject) { reject(new Error("Unknown Group")); });
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textsecure.storage.groups.deleteGroup(groupId);
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return sendGroupProto(numbers, proto);
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}
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return self;
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}();
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