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Request new keys (largely untested)

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This commit is contained in:
Matt Corallo 2014-05-28 01:14:16 +02:00
parent 56433bd9af
commit aec36468bc
4 changed files with 88 additions and 69 deletions
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145
js/helpers.js
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@ -334,58 +334,46 @@ window.textsecure.storage = function() {
*** Device Storage ***
**********************/
self.devices = function() {
//TODO: Just store numbers with the device list in the object, not a list of pointers...
var self = {};
self.getDeviceObject = function(encodedNumber) {
return textsecure.storage.getEncrypted("deviceObject" + encodedNumber);
}
var getDeviceIdListFromNumber = function(number) {
return textsecure.storage.getEncrypted("deviceIdList" + number, []);
}
var addDeviceIdForNumber = function(number, deviceId) {
var deviceIdList = getDeviceIdListFromNumber(number);
for (var i = 0; i < deviceIdList.length; i++) {
if (deviceIdList[i] == deviceId)
return;
}
deviceIdList[deviceIdList.length] = deviceId;
textsecure.storage.putEncrypted("deviceIdList" + number, deviceIdList);
}
var getDeviceId = function(encodedNumber) {
var split = encodedNumber.split(".");
if (split.length > 1)
return split[1];
return 1;
}
// throws "Identity key mismatch"
self.saveDeviceObject = function(deviceObject) {
var existing = this.getDeviceObject(deviceObject.encodedNumber);
if (existing === undefined)
existing = {encodedNumber: deviceObject.encodedNumber};
for (key in deviceObject) {
if (key == "encodedNumber")
continue;
var number = textsecure.utils.unencodeNumber(deviceObject.encodedNumber);
var map = textsecure.storage.getEncrypted("devices" + number);
if (key == "identityKey" && deviceObject.identityKey != deviceObject.identityKey)
throw new Error("Identity key mismatch");
if (map === undefined)
map = { devices: [deviceObject], identityKey: deviceObject.identityKey };
else if (map.identityKey != getString(deviceObject.identityKey))
throw new Error("Identity key changed");
existing[key] = deviceObject[key];
}
textsecure.storage.putEncrypted("deviceObject" + deviceObject.encodedNumber, existing);
addDeviceIdForNumber(textsecure.utils.unencodeNumber(deviceObject.encodedNumber), getDeviceId(deviceObject.encodedNumber));
textsecure.storage.putEncrypted("devices" + number, map);
}
self.getDeviceObjectListFromNumber = function(number) {
var deviceObjectList = [];
var deviceIdList = getDeviceIdListFromNumber(number);
for (var i = 0; i < deviceIdList.length; i++)
deviceObjectList[deviceObjectList.length] = self.getDeviceObject(number + "." + deviceIdList[i]);
return deviceObjectList;
self.getDeviceObjectsForNumber = function(number) {
var map = textsecure.storage.getEncrypted("devices" + number);
return map === undefined ? [] : map.devices;
}
self.removeDeviceIdsForNumber = function(number, deviceIdsToRemove) {
var map = textsecure.storage.getEncrypted("devices" + number);
if (map === undefined)
throw new Error("Tried to remove device for unknown number");
var newDevices = [];
var devicesRemoved = 0;
for (device in map.devices) {
var keep = true;
for (idToRemove in deviceIdsToRemove)
if (device.deviceId == idToRemove)
keep = false;
if (keep)
newDevices.push(device);
else
devicesRemoved++;
}
if (devicesRemoved != deviceIdsToRemove.length)
throw new Error("Tried to remove unknown device");
}
return self;
@ -519,18 +507,29 @@ window.textsecure.subscribeToPush = function() {
// sendMessage(numbers = [], message = PushMessageContentProto, callback(success/failure map))
window.textsecure.sendMessage = function() {
function getKeysForNumber(number) {
function getKeysForNumber(number, updateDevices) {
return textsecure.api.getKeysForNumber(number).then(function(response) {
for (var i = 0; i < response.length; i++) {
textsecure.storage.devices.saveDeviceObject({
encodedNumber: number + "." + response[i].deviceId,
identityKey: response[i].identityKey,
publicKey: response[i].publicKey,
preKeyId: response[i].keyId,
registrationId: response[i].registrationId
});
var identityKey = getString(response[0].identityKey);
for (device in response)
if (getString(device.identityKey) != identityKey)
throw new Error("Identity key changed");
for (device in response) {
var updateDevice = (updateDevices === undefined);
if (!updateDevice)
for (deviceId in updateDevices)
if (deviceId == device.deviceId)
updateDevice = true;
if (updateDevice)
textsecure.storage.devices.saveDeviceObject({
encodedNumber: number + "." + device.deviceId,
identityKey: device.identityKey,
publicKey: device.publicKey,
preKeyId: device.keyId,
registrationId: device.registrationId
});
}
return response[0].identityKey;
});
}
@ -542,7 +541,7 @@ window.textsecure.sendMessage = function() {
var promises = [];
var addEncryptionFor = function(i) {
return new Promise(function(resolve) { // Wrap in a promise for the throws
return new Promise(function(resolve) { // Wrap in a promise for the direct throws
if (deviceObjectList[i].relay !== undefined) {
if (relay === undefined)
relay = deviceObjectList[i].relay;
@ -601,19 +600,36 @@ window.textsecure.sendMessage = function() {
numberCompleted();
}).catch(function(error) {
if (error instanceof Error && error.name == "HTTPError" && (error.message == 410 || error.message == 409)) {
//TODO: Re-request keys for number here
}
registerError(number, "Failed to create or send message", error);
var resetDevices = ((error.message == 410) ? error.response.staleDevices : error.response.missingDevices);
getKeysForNumber(number, resetDevices).then(function() {
if (error.message == 409)
resetDevices = resetDevices.concat(error.response.extraDevices);
textsecure.storage.devices.removeDeviceIdsForNumber(number, resetDevices);
for (deviceId in resetDevices)
textsecure.crypto.forceRemoveAllSessions(number + "." + resetDevices);
//TODO: Try again
}).catch(function(error) {
if (error.message !== "Identity key changed")
registerError(number, "Failed to reload device keys", error);
else {
// TODO: Identity key changed, check which devices it changed for and get upset
registerError(number, "Identity key changed!!!!", error);
}
});
} else
registerError(number, "Failed to create or send message", error);
});
}
for (var i = 0; i < numbers.length; i++) {
var number = numbers[i];
var devicesForNumber = textsecure.storage.devices.getDeviceObjectListFromNumber(number);
var devicesForNumber = textsecure.storage.devices.getDeviceObjectsForNumber(number);
if (devicesForNumber.length == 0) {
getKeysForNumber(number).then(function(identity_key) {
devicesForNumber = textsecure.storage.devices.getDeviceObjectListFromNumber(number);
getKeysForNumber(number).then(function() {
devicesForNumber = textsecure.storage.devices.getDeviceObjectsForNumber(number);
if (devicesForNumber.length == 0)
registerError(number, "Failed to retreive new device keys for number " + number, null);
else
@ -661,8 +677,3 @@ window.textsecure.register = function() {
});
}
}();
function requestIdentityPrivKeyFromMasterDevice(number, identityKey) {
//TODO
}