/**
* Copyright (C) 2014 Open Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whispersystems.textsecuregcm.controllers;
import com.codahale.metrics.annotation.Timed;
import com.google.common.base.Optional;
import org.whispersystems.textsecuregcm.entities.SignedPreKey;
import org.whispersystems.textsecuregcm.entities.PreKeyResponseItemV2;
import org.whispersystems.textsecuregcm.entities.PreKeyResponseV2;
import org.whispersystems.textsecuregcm.entities.PreKeyStateV2;
import org.whispersystems.textsecuregcm.entities.PreKeyV2;
import org.whispersystems.textsecuregcm.federation.FederatedClientManager;
import org.whispersystems.textsecuregcm.federation.NoSuchPeerException;
import org.whispersystems.textsecuregcm.limits.RateLimiters;
import org.whispersystems.textsecuregcm.storage.Account;
import org.whispersystems.textsecuregcm.storage.AccountsManager;
import org.whispersystems.textsecuregcm.storage.Device;
import org.whispersystems.textsecuregcm.storage.KeyRecord;
import org.whispersystems.textsecuregcm.storage.Keys;
import javax.validation.Valid;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.util.LinkedList;
import java.util.List;
import io.dropwizard.auth.Auth;
@Path("/v2/keys")
public class KeysControllerV2 extends KeysController {
public KeysControllerV2(RateLimiters rateLimiters, Keys keys, AccountsManager accounts,
FederatedClientManager federatedClientManager)
{
super(rateLimiters, keys, accounts, federatedClientManager);
}
@Timed
@PUT
@Consumes(MediaType.APPLICATION_JSON)
public void setKeys(@Auth Account account, @Valid PreKeyStateV2 preKeys) {
Device device = account.getAuthenticatedDevice().get();
boolean updateAccount = false;
if (!preKeys.getSignedPreKey().equals(device.getSignedPreKey())) {
device.setSignedPreKey(preKeys.getSignedPreKey());
updateAccount = true;
}
if (!preKeys.getIdentityKey().equals(account.getIdentityKey())) {
account.setIdentityKey(preKeys.getIdentityKey());
updateAccount = true;
}
if (updateAccount) {
accounts.update(account);
}
keys.store(account.getNumber(), device.getId(), preKeys.getPreKeys(), preKeys.getLastResortKey());
}
@Timed
@GET
@Path("/{number}/{device_id}")
@Produces(MediaType.APPLICATION_JSON)
public Optional<PreKeyResponseV2> getDeviceKeys(@Auth Account account,
@PathParam("number") String number,
@PathParam("device_id") String deviceId,
@QueryParam("relay") Optional<String> relay)
throws RateLimitExceededException
{
try {
if (account.isRateLimited()) {
rateLimiters.getPreKeysLimiter().validate(account.getNumber() + "__" + number + "." + deviceId);
}
if (relay.isPresent()) {
return federatedClientManager.getClient(relay.get()).getKeysV2(number, deviceId);
}
TargetKeys targetKeys = getLocalKeys(number, deviceId);
Account destination = targetKeys.getDestination();
List<PreKeyResponseItemV2> devices = new LinkedList<>();
for (Device device : destination.getDevices()) {
if (device.isActive() && (deviceId.equals("*") || device.getId() == Long.parseLong(deviceId))) {
SignedPreKey signedPreKey = device.getSignedPreKey();
PreKeyV2 preKey = null;
if (targetKeys.getKeys().isPresent()) {
for (KeyRecord keyRecord : targetKeys.getKeys().get()) {
if (keyRecord.getDeviceId() == device.getId()) {
preKey = new PreKeyV2(keyRecord.getKeyId(), keyRecord.getPublicKey());
}
}
}
if (signedPreKey != null || preKey != null) {
devices.add(new PreKeyResponseItemV2(device.getId(), device.getRegistrationId(), signedPreKey, preKey));
}
}
}
if (devices.isEmpty()) return Optional.absent();
else return Optional.of(new PreKeyResponseV2(destination.getIdentityKey(), devices));
} catch (NoSuchPeerException | NoSuchUserException e) {
throw new WebApplicationException(Response.status(404).build());
}
}
@Timed
@PUT
@Path("/signed")
@Consumes(MediaType.APPLICATION_JSON)
public void setSignedKey(@Auth Account account, @Valid SignedPreKey signedPreKey) {
Device device = account.getAuthenticatedDevice().get();
device.setSignedPreKey(signedPreKey);
accounts.update(account);
}
@Timed
@GET
@Path("/signed")
@Produces(MediaType.APPLICATION_JSON)
public Optional<SignedPreKey> getSignedKey(@Auth Account account) {
Device device = account.getAuthenticatedDevice().get();
SignedPreKey signedPreKey = device.getSignedPreKey();
if (signedPreKey != null) return Optional.of(signedPreKey);
else return Optional.absent();
}
}