/**
* Copyright (C) 2013 Open WhisperSystems
*
* 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.Histogram;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.SharedMetricRegistries;
import com.codahale.metrics.annotation.Timed;
import com.google.common.base.Optional;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.whispersystems.textsecuregcm.entities.ClientContact;
import org.whispersystems.textsecuregcm.entities.ClientContactTokens;
import org.whispersystems.textsecuregcm.entities.ClientContacts;
import org.whispersystems.textsecuregcm.limits.RateLimiters;
import org.whispersystems.textsecuregcm.storage.Account;
import org.whispersystems.textsecuregcm.storage.DirectoryManager;
import org.whispersystems.textsecuregcm.util.Base64;
import org.whispersystems.textsecuregcm.util.Constants;
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.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
import static com.codahale.metrics.MetricRegistry.name;
import io.dropwizard.auth.Auth;
@Path("/v1/directory")
public class DirectoryController {
private final Logger logger = LoggerFactory.getLogger(DirectoryController.class);
private final MetricRegistry metricRegistry = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
private final Histogram contactsHistogram = metricRegistry.histogram(name(getClass(), "contacts"));
private final RateLimiters rateLimiters;
private final DirectoryManager directory;
public DirectoryController(RateLimiters rateLimiters, DirectoryManager directory) {
this.directory = directory;
this.rateLimiters = rateLimiters;
}
@Timed
@GET
@Path("/{token}")
@Produces(MediaType.APPLICATION_JSON)
public Response getTokenPresence(@Auth Account account, @PathParam("token") String token)
throws RateLimitExceededException
{
rateLimiters.getContactsLimiter().validate(account.getNumber());
try {
Optional<ClientContact> contact = directory.get(Base64.decodeWithoutPadding(token));
if (contact.isPresent()) return Response.ok().entity(contact.get()).build();
else return Response.status(404).build();
} catch (IOException e) {
logger.info("Bad token", e);
return Response.status(404).build();
}
}
@Timed
@PUT
@Path("/tokens")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public ClientContacts getContactIntersection(@Auth Account account, @Valid ClientContactTokens contacts)
throws RateLimitExceededException
{
rateLimiters.getContactsLimiter().validate(account.getNumber(), contacts.getContacts().size());
contactsHistogram.update(contacts.getContacts().size());
try {
List<byte[]> tokens = new LinkedList<>();
for (String encodedContact : contacts.getContacts()) {
tokens.add(Base64.decodeWithoutPadding(encodedContact));
}
List<ClientContact> intersection = directory.get(tokens);
return new ClientContacts(intersection);
} catch (IOException e) {
logger.info("Bad token", e);
throw new WebApplicationException(Response.status(400).build());
}
}
}