Bump version to 0.25

// FREEBIE

.gitignore

@@ -7,3 +7,5 @@ run.sh
 local.yml
 config/production.yml
 config/federated.yml
+config/staging.yml
+.opsmanage

config/sample.yml

@@ -15,6 +15,7 @@ nexmo:
   number:
 
 gcm:
+  senderId:
   apiKey: 
 
 # Optional. Only if iOS clients are supported.
@@ -56,9 +57,6 @@ graphite:
   host:
   port:
 
-http:
-  shutdownGracePeriod: 0s
-
 database:
   # the name of your JDBC driver
   driverClass: org.postgresql.Driver
@@ -75,24 +73,3 @@ database:
   # any properties specific to your JDBC driver:
   properties:
     charSet: UTF-8
-
-  # the maximum amount of time to wait on an empty pool before throwing an exception
-  maxWaitForConnection: 1s
-
-  # the SQL query to run when validating a connection's liveness
-  validationQuery: "/* MyService Health Check */ SELECT 1"
-
-  # the minimum number of connections to keep open
-  minSize: 8
-
-  # the maximum number of connections to keep open
-  maxSize: 32
-
-  # whether or not idle connections should be validated
-  checkConnectionWhileIdle: false
-
-  # how long a connection must be held before it can be validated
-  checkConnectionHealthWhenIdleFor: 10s
-
-  # the maximum lifetime of an idle connection
-  closeConnectionIfIdleFor: 1 minute

pom.xml

@@ -9,24 +9,78 @@
 
     <groupId>org.whispersystems.textsecure</groupId>
     <artifactId>TextSecureServer</artifactId>
-    <version>0.5</version>
+    <version>0.25</version>
+
+    <properties>
+        <dropwizard.version>0.7.1</dropwizard.version>
+        <jackson.api.version>2.3.3</jackson.api.version>
+        <commons-codec.version>1.6</commons-codec.version>
+    </properties>
 
     <dependencies>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-core</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-jdbi</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-auth</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-client</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-migrations</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-testing</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-metrics-graphite</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>io.dropwizard</groupId>
+            <artifactId>dropwizard-client</artifactId>
+            <version>${dropwizard.version}</version>
+        </dependency>
+
+
+        <dependency>
+            <groupId>com.sun.jersey</groupId>
+            <artifactId>jersey-json</artifactId>
+            <version>1.18.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.codahale.metrics</groupId>
+            <artifactId>metrics-graphite</artifactId>
+            <version>3.0.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.eclipse.jetty.websocket</groupId>
+            <artifactId>websocket-server</artifactId>
+            <version>9.0.7.v20131107</version>
+        </dependency>
+
         <dependency>
             <groupId>bouncycastle</groupId>
             <artifactId>bcprov-jdk16</artifactId>
             <version>140</version>
         </dependency>
-        <dependency>
-            <groupId>com.yammer.dropwizard</groupId>
-            <artifactId>dropwizard-core</artifactId>
-            <version>0.6.2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.yammer.metrics</groupId>
-            <artifactId>metrics-graphite</artifactId>
-            <version>2.2.0</version>
-        </dependency>
         <dependency>
             <groupId>com.google.android.gcm</groupId>
             <artifactId>gcm-server</artifactId>
@@ -56,7 +110,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>2.4.1</version>
+            <version>2.5.0</version>
         </dependency>
 
         <dependency>
@@ -66,35 +120,10 @@
             <type>jar</type>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.yammer.dropwizard</groupId>
-            <artifactId>dropwizard-jdbi</artifactId>
-            <version>0.6.2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.yammer.dropwizard</groupId>
-            <artifactId>dropwizard-auth</artifactId>
-            <version>0.6.2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.yammer.dropwizard</groupId>
-            <artifactId>dropwizard-client</artifactId>
-            <version>0.6.2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.yammer.dropwizard</groupId>
-            <artifactId>dropwizard-migrations</artifactId>
-            <version>0.6.2</version>
-        </dependency>
-        <dependency>
-            <groupId>com.yammer.dropwizard</groupId>
-            <artifactId>dropwizard-testing</artifactId>
-            <version>0.6.2</version>
-        </dependency>
         <dependency>
             <groupId>com.twilio.sdk</groupId>
             <artifactId>twilio-java-sdk</artifactId>
-            <version>3.4.1</version>
+            <version>3.4.5</version>
         </dependency>
 
         <dependency>
@@ -102,26 +131,35 @@
             <artifactId>postgresql</artifactId>
             <version>9.1-901.jdbc4</version>
         </dependency>
-
         <dependency>
-            <groupId>com.sun.jersey</groupId>
-            <artifactId>jersey-json</artifactId>
-            <version>1.17.1</version>
+            <groupId>org.igniterealtime.smack</groupId>
+            <artifactId>smack-tcp</artifactId>
+            <version>4.0.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.whispersystems.websocket</groupId>
+            <artifactId>websocket-resources</artifactId>
+            <version>0.1-SNAPSHOT</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.eclipse.jetty</groupId>
-            <artifactId>jetty-websocket</artifactId>
-            <version>8.1.14.v20131031</version>
-        </dependency>
 
-        <dependency>
-            <groupId>org.coursera</groupId>
-            <artifactId>metrics-datadog</artifactId>
-            <version>0.1.5</version>
-        </dependency>
     </dependencies>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>com.fasterxml.jackson.core</groupId>
+                <artifactId>jackson-databind</artifactId>
+                <version>${jackson.api.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>commons-codec</groupId>
+                <artifactId>commons-codec</artifactId>
+                <version>${commons-codec.version}</version>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <build>
         <plugins>
             <plugin>

protobuf/OutgoingMessageSignal.proto

@@ -20,6 +20,15 @@ option java_package = "org.whispersystems.textsecuregcm.entities";
 option java_outer_classname = "MessageProtos";
 
 message OutgoingMessageSignal {
+  enum Type {
+    UNKNOWN       = 0;
+    CIPHERTEXT    = 1;
+    KEY_EXCHANGE  = 2;
+    PREKEY_BUNDLE = 3;
+    PLAINTEXT     = 4;
+    RECEIPT       = 5;
+  }
+
   optional uint32 type = 1;
   optional string source = 2;
   optional  uint32 sourceDevice = 7;

src/main/java/org/whispersystems/textsecuregcm/WhisperServerConfiguration.java

@@ -17,16 +17,16 @@
 package org.whispersystems.textsecuregcm;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.yammer.dropwizard.config.Configuration;
-import com.yammer.dropwizard.db.DatabaseConfiguration;
 import org.whispersystems.textsecuregcm.configuration.ApnConfiguration;
-import org.whispersystems.textsecuregcm.configuration.DataDogConfiguration;
 import org.whispersystems.textsecuregcm.configuration.FederationConfiguration;
 import org.whispersystems.textsecuregcm.configuration.GcmConfiguration;
 import org.whispersystems.textsecuregcm.configuration.GraphiteConfiguration;
 import org.whispersystems.textsecuregcm.configuration.MemcacheConfiguration;
+import org.whispersystems.textsecuregcm.configuration.MetricsConfiguration;
 import org.whispersystems.textsecuregcm.configuration.NexmoConfiguration;
+import org.whispersystems.textsecuregcm.configuration.PushConfiguration;
 import org.whispersystems.textsecuregcm.configuration.RateLimitsConfiguration;
+import org.whispersystems.textsecuregcm.configuration.RedPhoneConfiguration;
 import org.whispersystems.textsecuregcm.configuration.RedisConfiguration;
 import org.whispersystems.textsecuregcm.configuration.S3Configuration;
 import org.whispersystems.textsecuregcm.configuration.TwilioConfiguration;
@@ -35,6 +35,10 @@ import org.whispersystems.textsecuregcm.configuration.WebsocketConfiguration;
 import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 
+import io.dropwizard.Configuration;
+import io.dropwizard.client.JerseyClientConfiguration;
+import io.dropwizard.db.DataSourceFactory;
+
 public class WhisperServerConfiguration extends Configuration {
 
   @NotNull
@@ -46,8 +50,9 @@ public class WhisperServerConfiguration extends Configuration {
   private NexmoConfiguration nexmo;
 
   @NotNull
+  @Valid
   @JsonProperty
-  private GcmConfiguration gcm;
+  private PushConfiguration push;
 
   @NotNull
   @Valid
@@ -64,9 +69,6 @@ public class WhisperServerConfiguration extends Configuration {
   @JsonProperty
   private RedisConfiguration redis;
 
-  @JsonProperty
-  private ApnConfiguration apn = new ApnConfiguration();
-
   @Valid
   @JsonProperty
   private FederationConfiguration federation = new FederationConfiguration();
@@ -74,7 +76,7 @@ public class WhisperServerConfiguration extends Configuration {
   @Valid
   @NotNull
   @JsonProperty
-  private DatabaseConfiguration database = new DatabaseConfiguration();
+  private DataSourceFactory database = new DataSourceFactory();
 
   @Valid
   @NotNull
@@ -87,12 +89,21 @@ public class WhisperServerConfiguration extends Configuration {
 
   @Valid
   @JsonProperty
-  private DataDogConfiguration datadog = new DataDogConfiguration();
+  private MetricsConfiguration viz = new MetricsConfiguration();
 
   @Valid
   @JsonProperty
   private WebsocketConfiguration websocket = new WebsocketConfiguration();
 
+  @JsonProperty
+  private RedPhoneConfiguration redphone = new RedPhoneConfiguration();
+
+  @Valid
+  @NotNull
+  @JsonProperty
+  private JerseyClientConfiguration httpClient = new JerseyClientConfiguration();
+
+
   public WebsocketConfiguration getWebsocketConfiguration() {
     return websocket;
   }
@@ -105,12 +116,12 @@ public class WhisperServerConfiguration extends Configuration {
     return nexmo;
   }
 
-  public GcmConfiguration getGcmConfiguration() {
-    return gcm;
+  public PushConfiguration getPushConfiguration() {
+    return push;
   }
 
-  public ApnConfiguration getApnConfiguration() {
-    return apn;
+  public JerseyClientConfiguration getJerseyClientConfiguration() {
+    return httpClient;
   }
 
   public S3Configuration getS3Configuration() {
@@ -125,7 +136,7 @@ public class WhisperServerConfiguration extends Configuration {
     return redis;
   }
 
-  public DatabaseConfiguration getDatabaseConfiguration() {
+  public DataSourceFactory getDataSourceFactory() {
     return database;
   }
 
@@ -141,7 +152,11 @@ public class WhisperServerConfiguration extends Configuration {
     return graphite;
   }
 
-  public DataDogConfiguration getDataDogConfiguration() {
-    return datadog;
+  public MetricsConfiguration getMetricsConfiguration() {
+    return viz;
+  }
+
+  public RedPhoneConfiguration getRedphoneConfiguration() {
+    return redphone;
   }
 }

src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java

@@ -16,20 +16,14 @@
  */
 package org.whispersystems.textsecuregcm;
 
+import com.codahale.metrics.SharedMetricRegistries;
+import com.codahale.metrics.graphite.GraphiteReporter;
+import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.Service;
-import com.yammer.dropwizard.config.Bootstrap;
-import com.yammer.dropwizard.config.Environment;
-import com.yammer.dropwizard.config.HttpConfiguration;
-import com.yammer.dropwizard.db.DatabaseConfiguration;
-import com.yammer.dropwizard.jdbi.DBIFactory;
-import com.yammer.dropwizard.migrations.MigrationsBundle;
-import com.yammer.metrics.core.Clock;
-import com.yammer.metrics.core.MetricPredicate;
-import com.yammer.metrics.reporting.DatadogReporter;
-import com.yammer.metrics.reporting.GraphiteReporter;
+import com.sun.jersey.api.client.Client;
 import net.spy.memcached.MemcachedClient;
 import org.bouncycastle.jce.provider.BouncyCastleProvider;
+import org.eclipse.jetty.servlets.CrossOriginFilter;
 import org.skife.jdbi.v2.DBI;
 import org.whispersystems.textsecuregcm.auth.AccountAuthenticator;
 import org.whispersystems.textsecuregcm.auth.FederatedPeerAuthenticator;
@@ -39,20 +33,31 @@ import org.whispersystems.textsecuregcm.controllers.AccountController;
 import org.whispersystems.textsecuregcm.controllers.AttachmentController;
 import org.whispersystems.textsecuregcm.controllers.DeviceController;
 import org.whispersystems.textsecuregcm.controllers.DirectoryController;
-import org.whispersystems.textsecuregcm.controllers.FederationController;
-import org.whispersystems.textsecuregcm.controllers.KeysController;
+import org.whispersystems.textsecuregcm.controllers.FederationControllerV1;
+import org.whispersystems.textsecuregcm.controllers.FederationControllerV2;
+import org.whispersystems.textsecuregcm.controllers.KeysControllerV1;
+import org.whispersystems.textsecuregcm.controllers.KeysControllerV2;
 import org.whispersystems.textsecuregcm.controllers.MessageController;
-import org.whispersystems.textsecuregcm.controllers.WebsocketControllerFactory;
+import org.whispersystems.textsecuregcm.controllers.ReceiptController;
 import org.whispersystems.textsecuregcm.federation.FederatedClientManager;
 import org.whispersystems.textsecuregcm.federation.FederatedPeer;
 import org.whispersystems.textsecuregcm.limits.RateLimiters;
 import org.whispersystems.textsecuregcm.mappers.IOExceptionMapper;
 import org.whispersystems.textsecuregcm.mappers.RateLimitExceededExceptionMapper;
+import org.whispersystems.textsecuregcm.metrics.CpuUsageGauge;
+import org.whispersystems.textsecuregcm.metrics.FreeMemoryGauge;
+import org.whispersystems.textsecuregcm.metrics.JsonMetricsReporter;
+import org.whispersystems.textsecuregcm.metrics.NetworkReceivedGauge;
+import org.whispersystems.textsecuregcm.metrics.NetworkSentGauge;
 import org.whispersystems.textsecuregcm.providers.MemcacheHealthCheck;
 import org.whispersystems.textsecuregcm.providers.MemcachedClientFactory;
 import org.whispersystems.textsecuregcm.providers.RedisClientFactory;
 import org.whispersystems.textsecuregcm.providers.RedisHealthCheck;
+import org.whispersystems.textsecuregcm.providers.TimeProvider;
+import org.whispersystems.textsecuregcm.push.FeedbackHandler;
 import org.whispersystems.textsecuregcm.push.PushSender;
+import org.whispersystems.textsecuregcm.push.PushServiceClient;
+import org.whispersystems.textsecuregcm.push.WebsocketSender;
 import org.whispersystems.textsecuregcm.sms.NexmoSmsSender;
 import org.whispersystems.textsecuregcm.sms.SmsSender;
 import org.whispersystems.textsecuregcm.sms.TwilioSmsSender;
@@ -66,18 +71,35 @@ import org.whispersystems.textsecuregcm.storage.PendingAccountsManager;
 import org.whispersystems.textsecuregcm.storage.PendingDevices;
 import org.whispersystems.textsecuregcm.storage.PendingDevicesManager;
 import org.whispersystems.textsecuregcm.storage.PubSubManager;
-import org.whispersystems.textsecuregcm.storage.StoredMessageManager;
 import org.whispersystems.textsecuregcm.storage.StoredMessages;
-import org.whispersystems.textsecuregcm.util.CORSHeaderFilter;
+import org.whispersystems.textsecuregcm.util.Constants;
 import org.whispersystems.textsecuregcm.util.UrlSigner;
+import org.whispersystems.textsecuregcm.websocket.ConnectListener;
+import org.whispersystems.textsecuregcm.websocket.WebSocketAccountAuthenticator;
 import org.whispersystems.textsecuregcm.workers.DirectoryCommand;
+import org.whispersystems.textsecuregcm.workers.VacuumCommand;
+import org.whispersystems.websocket.WebSocketResourceProviderFactory;
+import org.whispersystems.websocket.setup.WebSocketEnvironment;
 
+import javax.servlet.DispatcherType;
+import javax.servlet.FilterRegistration;
+import javax.servlet.ServletRegistration;
 import java.security.Security;
+import java.util.EnumSet;
 import java.util.concurrent.TimeUnit;
 
+import static com.codahale.metrics.MetricRegistry.name;
+import io.dropwizard.Application;
+import io.dropwizard.client.JerseyClientBuilder;
+import io.dropwizard.db.DataSourceFactory;
+import io.dropwizard.jdbi.DBIFactory;
+import io.dropwizard.metrics.graphite.GraphiteReporterFactory;
+import io.dropwizard.migrations.MigrationsBundle;
+import io.dropwizard.setup.Bootstrap;
+import io.dropwizard.setup.Environment;
 import redis.clients.jedis.JedisPool;
 
-public class WhisperServerService extends Service<WhisperServerConfiguration> {
+public class WhisperServerService extends Application<WhisperServerConfiguration> {
 
   static {
     Security.addProvider(new BouncyCastleProvider());
@@ -85,94 +107,129 @@ public class WhisperServerService extends Service<WhisperServerConfiguration> {
 
   @Override
   public void initialize(Bootstrap<WhisperServerConfiguration> bootstrap) {
-    bootstrap.setName("whisper-server");
     bootstrap.addCommand(new DirectoryCommand());
+    bootstrap.addCommand(new VacuumCommand());
     bootstrap.addBundle(new MigrationsBundle<WhisperServerConfiguration>() {
       @Override
-      public DatabaseConfiguration getDatabaseConfiguration(WhisperServerConfiguration configuration) {
-        return configuration.getDatabaseConfiguration();
+      public DataSourceFactory getDataSourceFactory(WhisperServerConfiguration configuration) {
+        return configuration.getDataSourceFactory();
       }
     });
   }
 
+  @Override
+  public String getName() {
+    return "whisper-server";
+  }
+
   @Override
   public void run(WhisperServerConfiguration config, Environment environment)
       throws Exception
   {
-    config.getHttpConfiguration().setConnectorType(HttpConfiguration.ConnectorType.NONBLOCKING);
-    
+    SharedMetricRegistries.add(Constants.METRICS_NAME, environment.metrics());
+    environment.getObjectMapper().configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+
     DBIFactory dbiFactory = new DBIFactory();
-    DBI        jdbi       = dbiFactory.build(environment, config.getDatabaseConfiguration(), "postgresql");
+    DBI        jdbi       = dbiFactory.build(environment, config.getDataSourceFactory(), "postgresql");
 
     Accounts        accounts        = jdbi.onDemand(Accounts.class);
     PendingAccounts pendingAccounts = jdbi.onDemand(PendingAccounts.class);
     PendingDevices  pendingDevices  = jdbi.onDemand(PendingDevices.class);
     Keys            keys            = jdbi.onDemand(Keys.class);
-    StoredMessages  storedMessages  = jdbi.onDemand(StoredMessages.class );
 
     MemcachedClient memcachedClient = new MemcachedClientFactory(config.getMemcacheConfiguration()).getClient();
     JedisPool       redisClient     = new RedisClientFactory(config.getRedisConfiguration()).getRedisClientPool();
+    Client          httpClient      = new JerseyClientBuilder(environment).using(config.getJerseyClientConfiguration())
+                                                                          .build(getName());
 
-    DirectoryManager         directory              = new DirectoryManager(redisClient);
-    PendingAccountsManager   pendingAccountsManager = new PendingAccountsManager(pendingAccounts, memcachedClient);
-    PendingDevicesManager    pendingDevicesManager  = new PendingDevicesManager(pendingDevices, memcachedClient);
-    AccountsManager          accountsManager        = new AccountsManager(accounts, directory, memcachedClient);
-    FederatedClientManager   federatedClientManager = new FederatedClientManager(config.getFederationConfiguration());
-    PubSubManager            pubSubManager          = new PubSubManager(redisClient);
-    StoredMessageManager     storedMessageManager   = new StoredMessageManager(storedMessages, pubSubManager);
+    DirectoryManager       directory              = new DirectoryManager(redisClient);
+    PendingAccountsManager pendingAccountsManager = new PendingAccountsManager(pendingAccounts, memcachedClient);
+    PendingDevicesManager  pendingDevicesManager  = new PendingDevicesManager (pendingDevices, memcachedClient );
+    AccountsManager        accountsManager        = new AccountsManager(accounts, directory, memcachedClient);
+    FederatedClientManager federatedClientManager = new FederatedClientManager(config.getFederationConfiguration());
+    StoredMessages         storedMessages         = new StoredMessages(redisClient);
+    PubSubManager          pubSubManager          = new PubSubManager(redisClient);
+    PushServiceClient      pushServiceClient      = new PushServiceClient(httpClient, config.getPushConfiguration());
+    WebsocketSender        websocketSender        = new WebsocketSender(storedMessages, pubSubManager);
+    AccountAuthenticator   deviceAuthenticator    = new AccountAuthenticator(accountsManager);
+    RateLimiters           rateLimiters           = new RateLimiters(config.getLimitsConfiguration(), memcachedClient);
 
-    AccountAuthenticator     deviceAuthenticator    = new AccountAuthenticator(accountsManager);
-    RateLimiters             rateLimiters           = new RateLimiters(config.getLimitsConfiguration(), memcachedClient);
+    TwilioSmsSender          twilioSmsSender     = new TwilioSmsSender(config.getTwilioConfiguration());
+    Optional<NexmoSmsSender> nexmoSmsSender      = initializeNexmoSmsSender(config.getNexmoConfiguration());
+    SmsSender                smsSender           = new SmsSender(twilioSmsSender, nexmoSmsSender, config.getTwilioConfiguration().isInternational());
+    UrlSigner                urlSigner           = new UrlSigner(config.getS3Configuration());
+    PushSender               pushSender          = new PushSender(pushServiceClient, websocketSender);
+    FeedbackHandler          feedbackHandler     = new FeedbackHandler(pushServiceClient, accountsManager);
+    Optional<byte[]>         authorizationKey    = config.getRedphoneConfiguration().getAuthorizationKey();
 
-    TwilioSmsSender          twilioSmsSender        = new TwilioSmsSender(config.getTwilioConfiguration());
-    Optional<NexmoSmsSender> nexmoSmsSender         = initializeNexmoSmsSender(config.getNexmoConfiguration());
-    SmsSender                smsSender              = new SmsSender(twilioSmsSender, nexmoSmsSender, config.getTwilioConfiguration().isInternational());
-    UrlSigner                urlSigner              = new UrlSigner(config.getS3Configuration());
-    PushSender               pushSender             = new PushSender(config.getGcmConfiguration(),
-                                                                     config.getApnConfiguration(),
-                                                                     storedMessageManager,
-                                                                     accountsManager);
+    environment.lifecycle().manage(feedbackHandler);
 
     AttachmentController attachmentController = new AttachmentController(rateLimiters, federatedClientManager, urlSigner);
-    KeysController       keysController       = new KeysController(rateLimiters, keys, accountsManager, federatedClientManager);
+    KeysControllerV1     keysControllerV1     = new KeysControllerV1(rateLimiters, keys, accountsManager, federatedClientManager);
+    KeysControllerV2     keysControllerV2     = new KeysControllerV2(rateLimiters, keys, accountsManager, federatedClientManager);
     MessageController    messageController    = new MessageController(rateLimiters, pushSender, accountsManager, federatedClientManager);
 
-    environment.addProvider(new MultiBasicAuthProvider<>(new FederatedPeerAuthenticator(config.getFederationConfiguration()),
-                                                         FederatedPeer.class,
-                                                         deviceAuthenticator,
-                                                         Device.class, "WhisperServer"));
+    environment.jersey().register(new MultiBasicAuthProvider<>(new FederatedPeerAuthenticator(config.getFederationConfiguration()),
+                                                               FederatedPeer.class,
+                                                               deviceAuthenticator,
+                                                               Device.class, "WhisperServer"));
 
-    environment.addResource(new AccountController(pendingAccountsManager, accountsManager, rateLimiters, smsSender));
-    environment.addResource(new DeviceController(pendingDevicesManager, accountsManager, rateLimiters));
-    environment.addResource(new DirectoryController(rateLimiters, directory));
-    environment.addResource(new FederationController(accountsManager, attachmentController, keysController, messageController));
-    environment.addResource(attachmentController);
-    environment.addResource(keysController);
-    environment.addResource(messageController);
+    environment.jersey().register(new AccountController(pendingAccountsManager, accountsManager, rateLimiters, smsSender, storedMessages, new TimeProvider(), authorizationKey));
+    environment.jersey().register(new DeviceController(pendingDevicesManager, accountsManager, rateLimiters));
+    environment.jersey().register(new DirectoryController(rateLimiters, directory));
+    environment.jersey().register(new FederationControllerV1(accountsManager, attachmentController, messageController, keysControllerV1));
+    environment.jersey().register(new FederationControllerV2(accountsManager, attachmentController, messageController, keysControllerV2));
+    environment.jersey().register(new ReceiptController(accountsManager, federatedClientManager, pushSender));
+    environment.jersey().register(attachmentController);
+    environment.jersey().register(keysControllerV1);
+    environment.jersey().register(keysControllerV2);
+    environment.jersey().register(messageController);
 
     if (config.getWebsocketConfiguration().isEnabled()) {
-      environment.addServlet(new WebsocketControllerFactory(deviceAuthenticator, storedMessageManager, pubSubManager),
-                             "/v1/websocket/");
-      environment.addFilter(new CORSHeaderFilter(), "/*");
+      WebSocketEnvironment webSocketEnvironment = new WebSocketEnvironment(environment);
+      webSocketEnvironment.setAuthenticator(new WebSocketAccountAuthenticator(deviceAuthenticator));
+      webSocketEnvironment.setConnectListener(new ConnectListener(accountsManager, pushSender, storedMessages, pubSubManager));
+
+      WebSocketResourceProviderFactory servlet = new WebSocketResourceProviderFactory(webSocketEnvironment);
+
+      ServletRegistration.Dynamic websocket = environment.servlets().addServlet("WebSocket", servlet);
+      websocket.addMapping("/v1/websocket/*");
+      websocket.setAsyncSupported(true);
+
+      FilterRegistration.Dynamic filter = environment.servlets().addFilter("CORS", CrossOriginFilter.class);
+      filter.addMappingForUrlPatterns(EnumSet.allOf(DispatcherType.class), true, "/*");
+      filter.setInitParameter("allowedOrigins", "*");
+      filter.setInitParameter("allowedHeaders", "Content-Type,Authorization,X-Requested-With,Content-Length,Accept,Origin");
+      filter.setInitParameter("allowedMethods", "GET,PUT,POST,DELETE,OPTIONS");
+      filter.setInitParameter("preflightMaxAge", "5184000");
+      filter.setInitParameter("allowCredentials", "true");
     }
 
-    environment.addHealthCheck(new RedisHealthCheck(redisClient));
-    environment.addHealthCheck(new MemcacheHealthCheck(memcachedClient));
+    environment.healthChecks().register("redis", new RedisHealthCheck(redisClient));
+    environment.healthChecks().register("memcache", new MemcacheHealthCheck(memcachedClient));
 
-    environment.addProvider(new IOExceptionMapper());
-    environment.addProvider(new RateLimitExceededExceptionMapper());
+    environment.jersey().register(new IOExceptionMapper());
+    environment.jersey().register(new RateLimitExceededExceptionMapper());
+
+    environment.metrics().register(name(CpuUsageGauge.class, "cpu"), new CpuUsageGauge());
+    environment.metrics().register(name(FreeMemoryGauge.class, "free_memory"), new FreeMemoryGauge());
+    environment.metrics().register(name(NetworkSentGauge.class, "bytes_sent"), new NetworkSentGauge());
+    environment.metrics().register(name(NetworkReceivedGauge.class, "bytes_received"), new NetworkReceivedGauge());
 
     if (config.getGraphiteConfiguration().isEnabled()) {
-      GraphiteReporter.enable(15, TimeUnit.SECONDS,
-                              config.getGraphiteConfiguration().getHost(),
-                              config.getGraphiteConfiguration().getPort());
+      GraphiteReporterFactory graphiteReporterFactory = new GraphiteReporterFactory();
+      graphiteReporterFactory.setHost(config.getGraphiteConfiguration().getHost());
+      graphiteReporterFactory.setPort(config.getGraphiteConfiguration().getPort());
+
+      GraphiteReporter graphiteReporter = (GraphiteReporter) graphiteReporterFactory.build(environment.metrics());
+      graphiteReporter.start(15, TimeUnit.SECONDS);
     }
 
-    if (config.getDataDogConfiguration().isEnabled()) {
-      new DatadogReporter.Builder().withApiKey(config.getDataDogConfiguration().getApiKey())
-                                   .withVmMetricsEnabled(true)
-                                   .build()
-                                   .start(15, TimeUnit.SECONDS);
+    if (config.getMetricsConfiguration().isEnabled()) {
+      new JsonMetricsReporter(environment.metrics(),
+                              config.getMetricsConfiguration().getToken(),
+                              config.getMetricsConfiguration().getHost())
+          .start(60, TimeUnit.SECONDS);
     }
   }
 

src/main/java/org/whispersystems/textsecuregcm/auth/AccountAuthenticator.java

@@ -16,29 +16,27 @@
  */
 package org.whispersystems.textsecuregcm.auth;
 
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.AuthenticationException;
-import com.yammer.dropwizard.auth.Authenticator;
-import com.yammer.dropwizard.auth.basic.BasicCredentials;
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.storage.Account;
-import org.whispersystems.textsecuregcm.storage.Device;
 import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.storage.Device;
+import org.whispersystems.textsecuregcm.util.Constants;
 
-import java.util.concurrent.TimeUnit;
+import static com.codahale.metrics.MetricRegistry.name;
+import io.dropwizard.auth.AuthenticationException;
+import io.dropwizard.auth.Authenticator;
+import io.dropwizard.auth.basic.BasicCredentials;
 
 public class AccountAuthenticator implements Authenticator<BasicCredentials, Account> {
 
-  private final Meter authenticationFailedMeter    = Metrics.newMeter(AccountAuthenticator.class,
-                                                                      "authentication", "failed",
-                                                                      TimeUnit.MINUTES);
-
-  private final Meter authenticationSucceededMeter = Metrics.newMeter(AccountAuthenticator.class,
-                                                                      "authentication", "succeeded",
-                                                                      TimeUnit.MINUTES);
+  private final MetricRegistry metricRegistry               = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
+  private final Meter          authenticationFailedMeter    = metricRegistry.meter(name(getClass(), "authentication", "failed"   ));
+  private final Meter          authenticationSucceededMeter = metricRegistry.meter(name(getClass(), "authentication", "succeeded"));
 
   private final Logger logger = LoggerFactory.getLogger(AccountAuthenticator.class);
 

src/main/java/org/whispersystems/textsecuregcm/auth/AuthorizationHeader.java

@@ -25,13 +25,13 @@ import java.io.IOException;
 public class AuthorizationHeader {
 
   private final String number;
-  private final long accountId;
+  private final long   accountId;
   private final String password;
 
   private AuthorizationHeader(String number, long accountId, String password) {
-    this.number = number;
+    this.number    = number;
     this.accountId = accountId;
-    this.password = password;
+    this.password  = password;
   }
 
   public static AuthorizationHeader fromUserAndPassword(String user, String password) throws InvalidAuthorizationHeaderException {

src/main/java/org/whispersystems/textsecuregcm/auth/AuthorizationToken.java

@@ -0,0 +1,76 @@
+package org.whispersystems.textsecuregcm.auth;
+
+
+import org.apache.commons.codec.DecoderException;
+import org.apache.commons.codec.binary.Hex;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.util.Util;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.InvalidKeyException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.concurrent.TimeUnit;
+
+public class AuthorizationToken {
+
+  private final Logger logger = LoggerFactory.getLogger(AuthorizationToken.class);
+
+  private final String token;
+  private final byte[] key;
+
+  public AuthorizationToken(String token, byte[] key) {
+    this.token = token;
+    this.key   = key;
+  }
+
+  public boolean isValid(String number, long currentTimeMillis) {
+    String[] parts = token.split(":");
+
+    if (parts.length != 3) {
+      return false;
+    }
+
+    if (!number.equals(parts[0])) {
+      return false;
+    }
+
+    if (!isValidTime(parts[1], currentTimeMillis)) {
+      return false;
+    }
+
+    return isValidSignature(parts[0] + ":" + parts[1], parts[2]);
+  }
+
+  private boolean isValidTime(String timeString, long currentTimeMillis) {
+    try {
+      long tokenTime = Long.parseLong(timeString);
+      long ourTime   = TimeUnit.MILLISECONDS.toSeconds(currentTimeMillis);
+
+      return TimeUnit.SECONDS.toHours(Math.abs(ourTime - tokenTime)) < 24;
+    } catch (NumberFormatException e) {
+      logger.warn("Number Format", e);
+      return false;
+    }
+  }
+
+  private boolean isValidSignature(String prefix, String suffix) {
+    try {
+      Mac hmac = Mac.getInstance("HmacSHA256");
+      hmac.init(new SecretKeySpec(key, "HmacSHA256"));
+
+      byte[] ourSuffix   = Util.truncate(hmac.doFinal(prefix.getBytes()), 10);
+      byte[] theirSuffix = Hex.decodeHex(suffix.toCharArray());
+
+      return MessageDigest.isEqual(ourSuffix, theirSuffix);
+    } catch (NoSuchAlgorithmException | InvalidKeyException e) {
+      throw new AssertionError(e);
+    } catch (DecoderException e) {
+      logger.warn("Authorizationtoken", e);
+      return false;
+    }
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/auth/FederatedPeerAuthenticator.java

@@ -16,30 +16,35 @@
  */
 package org.whispersystems.textsecuregcm.auth;
 
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.AuthenticationException;
-import com.yammer.dropwizard.auth.Authenticator;
-import com.yammer.dropwizard.auth.basic.BasicCredentials;
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.configuration.FederationConfiguration;
 import org.whispersystems.textsecuregcm.federation.FederatedPeer;
+import org.whispersystems.textsecuregcm.util.Constants;
 
 import java.util.List;
-import java.util.concurrent.TimeUnit;
+
+import static com.codahale.metrics.MetricRegistry.name;
+import io.dropwizard.auth.AuthenticationException;
+import io.dropwizard.auth.Authenticator;
+import io.dropwizard.auth.basic.BasicCredentials;
 
 
 public class FederatedPeerAuthenticator implements Authenticator<BasicCredentials, FederatedPeer> {
 
-  private final Meter authenticationFailedMeter    = Metrics.newMeter(FederatedPeerAuthenticator.class,
-                                                                      "authentication", "failed",
-                                                                      TimeUnit.MINUTES);
+  private final MetricRegistry metricRegistry = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
 
-  private final Meter authenticationSucceededMeter = Metrics.newMeter(FederatedPeerAuthenticator.class,
-                                                                      "authentication", "succeeded",
-                                                                      TimeUnit.MINUTES);
+  private final Meter authenticationFailedMeter    = metricRegistry.meter(name(getClass(),
+                                                                               "authentication",
+                                                                               "failed"));
+
+  private final Meter authenticationSucceededMeter = metricRegistry.meter(name(getClass(),
+                                                                               "authentication",
+                                                                               "succeeded"));
 
   private final Logger logger = LoggerFactory.getLogger(FederatedPeerAuthenticator.class);
 

src/main/java/org/whispersystems/textsecuregcm/auth/MultiBasicAuthProvider.java

@@ -21,17 +21,14 @@ import com.sun.jersey.core.spi.component.ComponentContext;
 import com.sun.jersey.core.spi.component.ComponentScope;
 import com.sun.jersey.spi.inject.Injectable;
 import com.sun.jersey.spi.inject.InjectableProvider;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.dropwizard.auth.Authenticator;
-import com.yammer.dropwizard.auth.basic.BasicAuthProvider;
-import com.yammer.dropwizard.auth.basic.BasicCredentials;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
+
+import io.dropwizard.auth.Auth;
+import io.dropwizard.auth.Authenticator;
+import io.dropwizard.auth.basic.BasicAuthProvider;
+import io.dropwizard.auth.basic.BasicCredentials;
 
 public class MultiBasicAuthProvider<T1,T2> implements InjectableProvider<Auth, Parameter> {
 
-  private final Logger logger = LoggerFactory.getLogger(MultiBasicAuthProvider.class);
-
   private final BasicAuthProvider<T1> provider1;
   private final BasicAuthProvider<T2> provider2;
 
@@ -44,8 +41,8 @@ public class MultiBasicAuthProvider<T1,T2> implements InjectableProvider<Auth, P
                                 Class<?> clazz2,
                                 String realm)
   {
-    this.provider1 = new BasicAuthProvider<T1>(authenticator1, realm);
-    this.provider2 = new BasicAuthProvider<T2>(authenticator2, realm);
+    this.provider1 = new BasicAuthProvider<>(authenticator1, realm);
+    this.provider2 = new BasicAuthProvider<>(authenticator2, realm);
     this.clazz1    = clazz1;
     this.clazz2    = clazz2;
   }

src/main/java/org/whispersystems/textsecuregcm/configuration/DataDogConfiguration.java

@@ -1,20 +0,0 @@
-package org.whispersystems.textsecuregcm.configuration;
-
-import com.fasterxml.jackson.annotation.JsonProperty;
-
-public class DataDogConfiguration {
-
-  @JsonProperty
-  private String apiKey;
-
-  @JsonProperty
-  private boolean enabled = false;
-
-  public String getApiKey() {
-    return apiKey;
-  }
-
-  public boolean isEnabled() {
-    return enabled && apiKey != null;
-  }
-}

src/main/java/org/whispersystems/textsecuregcm/configuration/GcmConfiguration.java

@@ -19,8 +19,14 @@ package org.whispersystems.textsecuregcm.configuration;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import org.hibernate.validator.constraints.NotEmpty;
 
+import javax.validation.constraints.NotNull;
+
 public class GcmConfiguration {
 
+  @NotNull
+  @JsonProperty
+  private long senderId;
+
   @NotEmpty
   @JsonProperty
   private String apiKey;
@@ -28,4 +34,8 @@ public class GcmConfiguration {
   public String getApiKey() {
     return apiKey;
   }
+
+  public long getSenderId() {
+    return senderId;
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/configuration/MetricsConfiguration.java

@@ -0,0 +1,27 @@
+package org.whispersystems.textsecuregcm.configuration;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class MetricsConfiguration {
+
+  @JsonProperty
+  private String token;
+
+  @JsonProperty
+  private String host;
+
+  @JsonProperty
+  private boolean enabled = false;
+
+  public String getHost() {
+    return host;
+  }
+
+  public String getToken() {
+    return token;
+  }
+
+  public boolean isEnabled() {
+    return enabled && token != null && host != null;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/configuration/PushConfiguration.java

@@ -0,0 +1,40 @@
+package org.whispersystems.textsecuregcm.configuration;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.validation.constraints.Min;
+
+public class PushConfiguration {
+  @JsonProperty
+  @NotEmpty
+  private String host;
+
+  @JsonProperty
+  @Min(1)
+  private int port;
+
+  @JsonProperty
+  @NotEmpty
+  private String username;
+
+  @JsonProperty
+  @NotEmpty
+  private String password;
+
+  public String getHost() {
+    return host;
+  }
+
+  public int getPort() {
+    return port;
+  }
+
+  public String getUsername() {
+    return username;
+  }
+
+  public String getPassword() {
+    return password;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/configuration/RedPhoneConfiguration.java

@@ -0,0 +1,20 @@
+package org.whispersystems.textsecuregcm.configuration;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.base.Optional;
+import org.apache.commons.codec.DecoderException;
+import org.apache.commons.codec.binary.Hex;
+
+public class RedPhoneConfiguration {
+
+  @JsonProperty
+  private String authKey;
+
+  public Optional<byte[]> getAuthorizationKey() throws DecoderException {
+    if (authKey == null || authKey.trim().length() == 0) {
+      return Optional.absent();
+    }
+
+    return Optional.of(Hex.decodeHex(authKey.toCharArray()));
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/controllers/AccountController.java

@@ -16,10 +16,9 @@
  */
 package org.whispersystems.textsecuregcm.controllers;
 
+import com.codahale.metrics.annotation.Timed;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.auth.AuthenticationCredentials;
@@ -28,15 +27,19 @@ import org.whispersystems.textsecuregcm.auth.InvalidAuthorizationHeaderException
 import org.whispersystems.textsecuregcm.entities.AccountAttributes;
 import org.whispersystems.textsecuregcm.entities.ApnRegistrationId;
 import org.whispersystems.textsecuregcm.entities.GcmRegistrationId;
+import org.whispersystems.textsecuregcm.auth.AuthorizationToken;
 import org.whispersystems.textsecuregcm.limits.RateLimiters;
+import org.whispersystems.textsecuregcm.providers.TimeProvider;
 import org.whispersystems.textsecuregcm.sms.SmsSender;
 import org.whispersystems.textsecuregcm.sms.TwilioSmsSender;
 import org.whispersystems.textsecuregcm.storage.Account;
 import org.whispersystems.textsecuregcm.storage.AccountsManager;
 import org.whispersystems.textsecuregcm.storage.Device;
 import org.whispersystems.textsecuregcm.storage.PendingAccountsManager;
+import org.whispersystems.textsecuregcm.storage.StoredMessages;
 import org.whispersystems.textsecuregcm.util.Util;
 import org.whispersystems.textsecuregcm.util.VerificationCode;
+import org.whispersystems.textsecuregcm.websocket.WebsocketAddress;
 
 import javax.validation.Valid;
 import javax.ws.rs.Consumes;
@@ -55,6 +58,8 @@ import java.io.IOException;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
 
+import io.dropwizard.auth.Auth;
+
 @Path("/v1/accounts")
 public class AccountController {
 
@@ -64,16 +69,25 @@ public class AccountController {
   private final AccountsManager        accounts;
   private final RateLimiters           rateLimiters;
   private final SmsSender              smsSender;
+  private final StoredMessages         storedMessages;
+  private final TimeProvider           timeProvider;
+  private final Optional<byte[]>       authorizationKey;
 
   public AccountController(PendingAccountsManager pendingAccounts,
                            AccountsManager accounts,
                            RateLimiters rateLimiters,
-                           SmsSender smsSenderFactory)
+                           SmsSender smsSenderFactory,
+                           StoredMessages storedMessages,
+                           TimeProvider timeProvider,
+                           Optional<byte[]> authorizationKey)
   {
-    this.pendingAccounts = pendingAccounts;
-    this.accounts        = accounts;
-    this.rateLimiters    = rateLimiters;
-    this.smsSender       = smsSenderFactory;
+    this.pendingAccounts  = pendingAccounts;
+    this.accounts         = accounts;
+    this.rateLimiters     = rateLimiters;
+    this.smsSender        = smsSenderFactory;
+    this.storedMessages   = storedMessages;
+    this.timeProvider     = timeProvider;
+    this.authorizationKey = authorizationKey;
   }
 
   @Timed
@@ -135,30 +149,50 @@ public class AccountController {
         throw new WebApplicationException(Response.status(403).build());
       }
 
-      Device device = new Device();
-      device.setId(Device.MASTER_ID);
-      device.setAuthenticationCredentials(new AuthenticationCredentials(password));
-      device.setSignalingKey(accountAttributes.getSignalingKey());
-      device.setFetchesMessages(accountAttributes.getFetchesMessages());
-      device.setRegistrationId(accountAttributes.getRegistrationId());
+      if (accounts.isRelayListed(number)) {
+        throw new WebApplicationException(Response.status(417).build());
+      }
 
-      Account account = new Account();
-      account.setNumber(number);
-      account.setSupportsSms(accountAttributes.getSupportsSms());
-      account.addDevice(device);
-
-      accounts.create(account);
-
-      pendingAccounts.remove(number);
-
-      logger.debug("Stored device...");
+      createAccount(number, password, accountAttributes);
     } catch (InvalidAuthorizationHeaderException e) {
       logger.info("Bad Authorization Header", e);
       throw new WebApplicationException(Response.status(401).build());
     }
   }
 
+  @Timed
+  @PUT
+  @Consumes(MediaType.APPLICATION_JSON)
+  @Path("/token/{verification_token}")
+  public void verifyToken(@PathParam("verification_token") String verificationToken,
+                          @HeaderParam("Authorization")    String authorizationHeader,
+                          @Valid                           AccountAttributes accountAttributes)
+      throws RateLimitExceededException
+  {
+    try {
+      AuthorizationHeader header   = AuthorizationHeader.fromFullHeader(authorizationHeader);
+      String              number   = header.getNumber();
+      String              password = header.getPassword();
 
+      rateLimiters.getVerifyLimiter().validate(number);
+
+      if (!authorizationKey.isPresent()) {
+        logger.debug("Attempt to authorize with key but not configured...");
+        throw new WebApplicationException(Response.status(403).build());
+      }
+
+      AuthorizationToken token = new AuthorizationToken(verificationToken, authorizationKey.get());
+
+      if (!token.isValid(number, timeProvider.getCurrentTimeMillis())) {
+        throw new WebApplicationException(Response.status(403).build());
+      }
+
+      createAccount(number, password, accountAttributes);
+    } catch (InvalidAuthorizationHeaderException e) {
+      logger.info("Bad authorization header", e);
+      throw new WebApplicationException(Response.status(401).build());
+    }
+  }
 
   @Timed
   @PUT
@@ -209,6 +243,26 @@ public class AccountController {
         encodedVerificationText)).build();
   }
 
+  private void createAccount(String number, String password, AccountAttributes accountAttributes) {
+    Device device = new Device();
+    device.setId(Device.MASTER_ID);
+    device.setAuthenticationCredentials(new AuthenticationCredentials(password));
+    device.setSignalingKey(accountAttributes.getSignalingKey());
+    device.setFetchesMessages(accountAttributes.getFetchesMessages());
+    device.setRegistrationId(accountAttributes.getRegistrationId());
+
+    Account account = new Account();
+    account.setNumber(number);
+    account.setSupportsSms(accountAttributes.getSupportsSms());
+    account.addDevice(device);
+
+    accounts.create(account);
+    storedMessages.clear(new WebsocketAddress(number, Device.MASTER_ID));
+    pendingAccounts.remove(number);
+
+    logger.debug("Stored device...");
+  }
+
   @VisibleForTesting protected VerificationCode generateVerificationCode() {
     try {
       SecureRandom random = SecureRandom.getInstance("SHA1PRNG");

src/main/java/org/whispersystems/textsecuregcm/controllers/AttachmentController.java

@@ -17,9 +17,8 @@
 package org.whispersystems.textsecuregcm.controllers;
 
 import com.amazonaws.HttpMethod;
+import com.codahale.metrics.annotation.Timed;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.entities.AttachmentDescriptor;
@@ -44,6 +43,8 @@ import java.net.URL;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
 
+import io.dropwizard.auth.Auth;
+
 
 @Path("/v1/attachments")
 public class AttachmentController {

src/main/java/org/whispersystems/textsecuregcm/controllers/DeviceController.java

@@ -16,10 +16,9 @@
  */
 package org.whispersystems.textsecuregcm.controllers;
 
+import com.codahale.metrics.annotation.Timed;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.auth.AuthenticationCredentials;
@@ -29,8 +28,8 @@ import org.whispersystems.textsecuregcm.entities.AccountAttributes;
 import org.whispersystems.textsecuregcm.entities.DeviceResponse;
 import org.whispersystems.textsecuregcm.limits.RateLimiters;
 import org.whispersystems.textsecuregcm.storage.Account;
-import org.whispersystems.textsecuregcm.storage.Device;
 import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.storage.Device;
 import org.whispersystems.textsecuregcm.storage.PendingDevicesManager;
 import org.whispersystems.textsecuregcm.util.VerificationCode;
 
@@ -48,6 +47,8 @@ import javax.ws.rs.core.Response;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
 
+import io.dropwizard.auth.Auth;
+
 @Path("/v1/devices")
 public class DeviceController {
 

src/main/java/org/whispersystems/textsecuregcm/controllers/DirectoryController.java

@@ -16,9 +16,11 @@
  */
 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 com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.entities.ClientContact;
@@ -28,6 +30,7 @@ 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;
@@ -43,10 +46,15 @@ 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 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;
@@ -56,7 +64,7 @@ public class DirectoryController {
     this.rateLimiters = rateLimiters;
   }
 
-  @Timed()
+  @Timed
   @GET
   @Path("/{token}")
   @Produces(MediaType.APPLICATION_JSON)
@@ -77,7 +85,7 @@ public class DirectoryController {
     }
   }
 
-  @Timed()
+  @Timed
   @PUT
   @Path("/tokens")
   @Produces(MediaType.APPLICATION_JSON)
@@ -86,6 +94,7 @@ public class DirectoryController {
       throws RateLimitExceededException
   {
     rateLimiters.getContactsLimiter().validate(account.getNumber(), contacts.getContacts().size());
+    contactsHistogram.update(contacts.getContacts().size());
 
     try {
       List<byte[]> tokens = new LinkedList<>();

src/main/java/org/whispersystems/textsecuregcm/controllers/FederationController.java

@@ -1,167 +1,19 @@
-/**
- * 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.google.common.base.Optional;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.whispersystems.textsecuregcm.entities.AccountCount;
-import org.whispersystems.textsecuregcm.entities.AttachmentUri;
-import org.whispersystems.textsecuregcm.entities.ClientContact;
-import org.whispersystems.textsecuregcm.entities.ClientContacts;
-import org.whispersystems.textsecuregcm.entities.IncomingMessageList;
-import org.whispersystems.textsecuregcm.entities.PreKey;
-import org.whispersystems.textsecuregcm.entities.UnstructuredPreKeyList;
-import org.whispersystems.textsecuregcm.federation.FederatedPeer;
-import org.whispersystems.textsecuregcm.federation.NonLimitedAccount;
-import org.whispersystems.textsecuregcm.storage.Account;
 import org.whispersystems.textsecuregcm.storage.AccountsManager;
-import org.whispersystems.textsecuregcm.util.Util;
 
-import javax.validation.Valid;
-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.core.MediaType;
-import java.io.IOException;
-import java.util.LinkedList;
-import java.util.List;
-
-@Path("/v1/federation")
 public class FederationController {
 
-  private final Logger logger = LoggerFactory.getLogger(FederationController.class);
+  protected final AccountsManager      accounts;
+  protected final AttachmentController attachmentController;
+  protected final MessageController    messageController;
 
-  private static final int ACCOUNT_CHUNK_SIZE = 10000;
-
-  private final AccountsManager      accounts;
-  private final AttachmentController attachmentController;
-  private final KeysController       keysController;
-  private final MessageController    messageController;
-
-  public FederationController(AccountsManager      accounts,
+  public FederationController(AccountsManager accounts,
                               AttachmentController attachmentController,
-                              KeysController       keysController,
-                              MessageController     messageController)
+                              MessageController messageController)
   {
     this.accounts             = accounts;
     this.attachmentController = attachmentController;
-    this.keysController       = keysController;
     this.messageController    = messageController;
   }
-
-  @Timed
-  @GET
-  @Path("/attachment/{attachmentId}")
-  @Produces(MediaType.APPLICATION_JSON)
-  public AttachmentUri getSignedAttachmentUri(@Auth                      FederatedPeer peer,
-                                              @PathParam("attachmentId") long attachmentId)
-      throws IOException
-  {
-    return attachmentController.redirectToAttachment(new NonLimitedAccount("Unknown", -1, peer.getName()),
-                                                     attachmentId, Optional.<String>absent());
-  }
-
-  @Timed
-  @GET
-  @Path("/key/{number}")
-  @Produces(MediaType.APPLICATION_JSON)
-  public PreKey getKey(@Auth                FederatedPeer peer,
-                       @PathParam("number") String number)
-      throws IOException
-  {
-    try {
-      return keysController.get(new NonLimitedAccount("Unknown", -1, peer.getName()), number, Optional.<String>absent());
-    } catch (RateLimitExceededException e) {
-      logger.warn("Rate limiting on federated channel", e);
-      throw new IOException(e);
-    }
-  }
-
-  @Timed
-  @GET
-  @Path("/key/{number}/{device}")
-  @Produces(MediaType.APPLICATION_JSON)
-  public UnstructuredPreKeyList getKeys(@Auth                FederatedPeer peer,
-                                        @PathParam("number") String number,
-                                        @PathParam("device") String device)
-      throws IOException
-  {
-    try {
-      return keysController.getDeviceKey(new NonLimitedAccount("Unknown", -1, peer.getName()),
-                                         number, device, Optional.<String>absent());
-    } catch (RateLimitExceededException e) {
-      logger.warn("Rate limiting on federated channel", e);
-      throw new IOException(e);
-    }
-  }
-
-  @Timed
-  @PUT
-  @Path("/messages/{source}/{sourceDeviceId}/{destination}")
-  public void sendMessages(@Auth                        FederatedPeer peer,
-                           @PathParam("source")         String source,
-                           @PathParam("sourceDeviceId") long sourceDeviceId,
-                           @PathParam("destination")    String destination,
-                           @Valid                       IncomingMessageList messages)
-      throws IOException
-  {
-    try {
-      messages.setRelay(null);
-      messageController.sendMessage(new NonLimitedAccount(source, sourceDeviceId, peer.getName()), destination, messages);
-    } catch (RateLimitExceededException e) {
-      logger.warn("Rate limiting on federated channel", e);
-      throw new IOException(e);
-    }
-  }
-
-  @Timed
-  @GET
-  @Path("/user_count")
-  @Produces(MediaType.APPLICATION_JSON)
-  public AccountCount getUserCount(@Auth FederatedPeer peer) {
-    return new AccountCount((int)accounts.getCount());
-  }
-
-  @Timed
-  @GET
-  @Path("/user_tokens/{offset}")
-  @Produces(MediaType.APPLICATION_JSON)
-  public ClientContacts getUserTokens(@Auth                FederatedPeer peer,
-                                      @PathParam("offset") int offset)
-  {
-    List<Account>       accountList    = accounts.getAll(offset, ACCOUNT_CHUNK_SIZE);
-    List<ClientContact> clientContacts = new LinkedList<>();
-
-    for (Account account : accountList) {
-      byte[]        token         = Util.getContactToken(account.getNumber());
-      ClientContact clientContact = new ClientContact(token, null, account.getSupportsSms());
-
-      if (!account.isActive()) {
-        clientContact.setInactive(true);
-      }
-
-      clientContacts.add(clientContact);
-    }
-
-    return new ClientContacts(clientContacts);
-  }
 }

src/main/java/org/whispersystems/textsecuregcm/controllers/FederationControllerV1.java

@@ -0,0 +1,164 @@
+/**
+ * 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.annotation.Timed;
+import com.google.common.base.Optional;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.entities.AccountCount;
+import org.whispersystems.textsecuregcm.entities.AttachmentUri;
+import org.whispersystems.textsecuregcm.entities.ClientContact;
+import org.whispersystems.textsecuregcm.entities.ClientContacts;
+import org.whispersystems.textsecuregcm.entities.IncomingMessageList;
+import org.whispersystems.textsecuregcm.entities.PreKeyResponseV1;
+import org.whispersystems.textsecuregcm.entities.PreKeyV1;
+import org.whispersystems.textsecuregcm.federation.FederatedPeer;
+import org.whispersystems.textsecuregcm.federation.NonLimitedAccount;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.util.Util;
+
+import javax.validation.Valid;
+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.core.MediaType;
+import java.io.IOException;
+import java.util.LinkedList;
+import java.util.List;
+
+import io.dropwizard.auth.Auth;
+
+@Path("/v1/federation")
+public class FederationControllerV1 extends FederationController {
+
+  private final Logger logger = LoggerFactory.getLogger(FederationControllerV1.class);
+
+  private static final int ACCOUNT_CHUNK_SIZE = 10000;
+
+  private final KeysControllerV1 keysControllerV1;
+
+  public FederationControllerV1(AccountsManager accounts,
+                                AttachmentController attachmentController,
+                                MessageController messageController,
+                                KeysControllerV1 keysControllerV1)
+  {
+    super(accounts, attachmentController, messageController);
+    this.keysControllerV1 = keysControllerV1;
+  }
+
+  @Timed
+  @GET
+  @Path("/attachment/{attachmentId}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public AttachmentUri getSignedAttachmentUri(@Auth                      FederatedPeer peer,
+                                              @PathParam("attachmentId") long attachmentId)
+      throws IOException
+  {
+    return attachmentController.redirectToAttachment(new NonLimitedAccount("Unknown", -1, peer.getName()),
+                                                     attachmentId, Optional.<String>absent());
+  }
+
+  @Timed
+  @GET
+  @Path("/key/{number}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public Optional<PreKeyV1> getKey(@Auth                FederatedPeer peer,
+                                   @PathParam("number") String number)
+      throws IOException
+  {
+    try {
+      return keysControllerV1.get(new NonLimitedAccount("Unknown", -1, peer.getName()),
+                                  number, Optional.<String>absent());
+    } catch (RateLimitExceededException e) {
+      logger.warn("Rate limiting on federated channel", e);
+      throw new IOException(e);
+    }
+  }
+
+  @Timed
+  @GET
+  @Path("/key/{number}/{device}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public Optional<PreKeyResponseV1> getKeysV1(@Auth                FederatedPeer peer,
+                                              @PathParam("number") String number,
+                                              @PathParam("device") String device)
+      throws IOException
+  {
+    try {
+      return keysControllerV1.getDeviceKey(new NonLimitedAccount("Unknown", -1, peer.getName()),
+                                           number, device, Optional.<String>absent());
+    } catch (RateLimitExceededException e) {
+      logger.warn("Rate limiting on federated channel", e);
+      throw new IOException(e);
+    }
+  }
+
+  @Timed
+  @PUT
+  @Path("/messages/{source}/{sourceDeviceId}/{destination}")
+  public void sendMessages(@Auth                        FederatedPeer peer,
+                           @PathParam("source")         String source,
+                           @PathParam("sourceDeviceId") long sourceDeviceId,
+                           @PathParam("destination")    String destination,
+                           @Valid                       IncomingMessageList messages)
+      throws IOException
+  {
+    try {
+      messages.setRelay(null);
+      messageController.sendMessage(new NonLimitedAccount(source, sourceDeviceId, peer.getName()), destination, messages);
+    } catch (RateLimitExceededException e) {
+      logger.warn("Rate limiting on federated channel", e);
+      throw new IOException(e);
+    }
+  }
+
+  @Timed
+  @GET
+  @Path("/user_count")
+  @Produces(MediaType.APPLICATION_JSON)
+  public AccountCount getUserCount(@Auth FederatedPeer peer) {
+    return new AccountCount((int)accounts.getCount());
+  }
+
+  @Timed
+  @GET
+  @Path("/user_tokens/{offset}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public ClientContacts getUserTokens(@Auth                FederatedPeer peer,
+                                      @PathParam("offset") int offset)
+  {
+    List<Account>       accountList    = accounts.getAll(offset, ACCOUNT_CHUNK_SIZE);
+    List<ClientContact> clientContacts = new LinkedList<>();
+
+    for (Account account : accountList) {
+      byte[]        token         = Util.getContactToken(account.getNumber());
+      ClientContact clientContact = new ClientContact(token, null, account.getSupportsSms());
+
+      if (!account.isActive()) {
+        clientContact.setInactive(true);
+      }
+
+      clientContacts.add(clientContact);
+    }
+
+    return new ClientContacts(clientContacts);
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/controllers/FederationControllerV2.java

@@ -0,0 +1,51 @@
+package org.whispersystems.textsecuregcm.controllers;
+
+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.PreKeyResponseV2;
+import org.whispersystems.textsecuregcm.federation.FederatedPeer;
+import org.whispersystems.textsecuregcm.federation.NonLimitedAccount;
+import org.whispersystems.textsecuregcm.storage.AccountsManager;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import java.io.IOException;
+
+import io.dropwizard.auth.Auth;
+
+@Path("/v2/federation")
+public class FederationControllerV2 extends FederationController {
+
+  private final Logger logger = LoggerFactory.getLogger(FederationControllerV2.class);
+
+  private final KeysControllerV2 keysControllerV2;
+
+  public FederationControllerV2(AccountsManager accounts, AttachmentController attachmentController, MessageController messageController, KeysControllerV2 keysControllerV2) {
+    super(accounts, attachmentController, messageController);
+    this.keysControllerV2 = keysControllerV2;
+  }
+
+  @Timed
+  @GET
+  @Path("/key/{number}/{device}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public Optional<PreKeyResponseV2> getKeysV2(@Auth                FederatedPeer peer,
+                                              @PathParam("number") String number,
+                                              @PathParam("device") String device)
+      throws IOException
+  {
+    try {
+      return keysControllerV2.getDeviceKeys(new NonLimitedAccount("Unknown", -1, peer.getName()),
+                                            number, device, Optional.<String>absent());
+    } catch (RateLimitExceededException e) {
+      logger.warn("Rate limiting on federated channel", e);
+      throw new IOException(e);
+    }
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/controllers/KeysController.java

@@ -1,5 +1,5 @@
 /**
- * Copyright (C) 2013 Open WhisperSystems
+ * 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
@@ -16,45 +16,32 @@
  */
 package org.whispersystems.textsecuregcm.controllers;
 
+import com.codahale.metrics.annotation.Timed;
 import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.whispersystems.textsecuregcm.entities.PreKey;
-import org.whispersystems.textsecuregcm.entities.PreKeyList;
-import org.whispersystems.textsecuregcm.entities.UnstructuredPreKeyList;
+import org.whispersystems.textsecuregcm.entities.PreKeyCount;
 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;
 
-@Path("/v1/keys")
+import io.dropwizard.auth.Auth;
+
 public class KeysController {
 
-  private final Logger logger = LoggerFactory.getLogger(KeysController.class);
-
-  private final RateLimiters           rateLimiters;
-  private final Keys                   keys;
-  private final AccountsManager        accounts;
-  private final FederatedClientManager federatedClientManager;
+  protected final RateLimiters           rateLimiters;
+  protected final Keys                   keys;
+  protected final AccountsManager        accounts;
+  protected final FederatedClientManager federatedClientManager;
 
   public KeysController(RateLimiters rateLimiters, Keys keys, AccountsManager accounts,
                         FederatedClientManager federatedClientManager)
@@ -65,98 +52,65 @@ public class KeysController {
     this.federatedClientManager = federatedClientManager;
   }
 
-  @Timed
-  @PUT
-  @Consumes(MediaType.APPLICATION_JSON)
-  public void setKeys(@Auth Account account, @Valid PreKeyList preKeys)  {
-    Device device = account.getAuthenticatedDevice().get();
-    keys.store(account.getNumber(), device.getId(), preKeys.getKeys(), preKeys.getLastResortKey());
-  }
-
   @Timed
   @GET
-  @Path("/{number}/{device_id}")
   @Produces(MediaType.APPLICATION_JSON)
-  public UnstructuredPreKeyList getDeviceKey(@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);
-      }
+  public PreKeyCount getStatus(@Auth Account account) {
+    int count = keys.getCount(account.getNumber(), account.getAuthenticatedDevice().get().getId());
 
-      Optional<UnstructuredPreKeyList> results;
-
-      if (!relay.isPresent()) results = getLocalKeys(number, deviceId);
-      else                    results = federatedClientManager.getClient(relay.get()).getKeys(number, deviceId);
-
-      if (results.isPresent()) return results.get();
-      else                     throw new WebApplicationException(Response.status(404).build());
-    } catch (NoSuchPeerException e) {
-      throw new WebApplicationException(Response.status(404).build());
+    if (count > 0) {
+      count = count - 1;
     }
+
+    return new PreKeyCount(count);
   }
 
-  @Timed
-  @GET
-  @Path("/{number}")
-  @Produces(MediaType.APPLICATION_JSON)
-  public PreKey get(@Auth                Account account,
-                    @PathParam("number") String number,
-                    @QueryParam("relay") Optional<String> relay)
-      throws RateLimitExceededException
+  protected TargetKeys getLocalKeys(String number, String deviceIdSelector)
+      throws NoSuchUserException
   {
-    UnstructuredPreKeyList results = getDeviceKey(account, number, String.valueOf(Device.MASTER_ID), relay);
-    return results.getKeys().get(0);
-  }
-
-  private Optional<UnstructuredPreKeyList> getLocalKeys(String number, String deviceIdSelector) {
     Optional<Account> destination = accounts.get(number);
 
     if (!destination.isPresent() || !destination.get().isActive()) {
-      return Optional.absent();
+      throw new NoSuchUserException("Target account is inactive");
     }
 
     try {
       if (deviceIdSelector.equals("*")) {
-        Optional<UnstructuredPreKeyList> preKeys = keys.get(number);
-        return getActiveKeys(destination.get(), preKeys);
+        Optional<List<KeyRecord>> preKeys = keys.get(number);
+        return new TargetKeys(destination.get(), preKeys);
       }
 
       long             deviceId     = Long.parseLong(deviceIdSelector);
       Optional<Device> targetDevice = destination.get().getDevice(deviceId);
 
       if (!targetDevice.isPresent() || !targetDevice.get().isActive()) {
-        return Optional.absent();
+        throw new NoSuchUserException("Target device is inactive.");
       }
 
-      Optional<UnstructuredPreKeyList> preKeys = keys.get(number, deviceId);
-      return getActiveKeys(destination.get(), preKeys);
+      Optional<List<KeyRecord>> preKeys = keys.get(number, deviceId);
+      return new TargetKeys(destination.get(), preKeys);
     } catch (NumberFormatException e) {
       throw new WebApplicationException(Response.status(422).build());
     }
   }
 
-  private Optional<UnstructuredPreKeyList> getActiveKeys(Account destination,
-                                                         Optional<UnstructuredPreKeyList> preKeys)
-  {
-    if (!preKeys.isPresent()) return Optional.absent();
 
-    List<PreKey> filteredKeys = new LinkedList<>();
+  public static class TargetKeys {
+    private final Account         destination;
+    private final Optional<List<KeyRecord>> keys;
 
-    for (PreKey preKey : preKeys.get().getKeys()) {
-      Optional<Device> device = destination.getDevice(preKey.getDeviceId());
-
-      if (device.isPresent() && device.get().isActive()) {
-        preKey.setRegistrationId(device.get().getRegistrationId());
-        filteredKeys.add(preKey);
-      }
+    public TargetKeys(Account destination, Optional<List<KeyRecord>> keys) {
+      this.destination = destination;
+      this.keys        = keys;
     }
 
-    if (filteredKeys.isEmpty()) return Optional.absent();
-    else                        return Optional.of(new UnstructuredPreKeyList(filteredKeys));
+    public Optional<List<KeyRecord>> getKeys() {
+      return keys;
+    }
+
+    public Account getDestination() {
+      return destination;
+    }
   }
+
 }

src/main/java/org/whispersystems/textsecuregcm/controllers/KeysControllerV1.java

@@ -0,0 +1,136 @@
+/**
+ * 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.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.entities.PreKeyResponseV1;
+import org.whispersystems.textsecuregcm.entities.PreKeyStateV1;
+import org.whispersystems.textsecuregcm.entities.PreKeyV1;
+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("/v1/keys")
+public class KeysControllerV1 extends KeysController {
+
+  private final Logger logger = LoggerFactory.getLogger(KeysControllerV1.class);
+
+  public KeysControllerV1(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 PreKeyStateV1 preKeys)  {
+    Device device      = account.getAuthenticatedDevice().get();
+    String identityKey = preKeys.getLastResortKey().getIdentityKey();
+
+    if (!identityKey.equals(account.getIdentityKey())) {
+      account.setIdentityKey(identityKey);
+      accounts.update(account);
+    }
+
+    keys.store(account.getNumber(), device.getId(), preKeys.getKeys(), preKeys.getLastResortKey());
+  }
+
+  @Timed
+  @GET
+  @Path("/{number}/{device_id}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public Optional<PreKeyResponseV1> getDeviceKey(@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()).getKeysV1(number, deviceId);
+      }
+
+      TargetKeys targetKeys = getLocalKeys(number, deviceId);
+
+      if (!targetKeys.getKeys().isPresent()) {
+        return Optional.absent();
+      }
+
+      List<PreKeyV1> preKeys     = new LinkedList<>();
+      Account        destination = targetKeys.getDestination();
+
+      for (KeyRecord record : targetKeys.getKeys().get()) {
+        Optional<Device> device = destination.getDevice(record.getDeviceId());
+        if (device.isPresent() && device.get().isActive()) {
+          preKeys.add(new PreKeyV1(record.getDeviceId(), record.getKeyId(),
+                                   record.getPublicKey(), destination.getIdentityKey(),
+                                   device.get().getRegistrationId()));
+        }
+      }
+
+      if (preKeys.isEmpty()) return Optional.absent();
+      else                   return Optional.of(new PreKeyResponseV1(preKeys));
+    } catch (NoSuchPeerException | NoSuchUserException e) {
+      throw new WebApplicationException(Response.status(404).build());
+    }
+  }
+
+  @Timed
+  @GET
+  @Path("/{number}")
+  @Produces(MediaType.APPLICATION_JSON)
+  public Optional<PreKeyV1> get(@Auth                Account account,
+                                @PathParam("number") String number,
+                                @QueryParam("relay") Optional<String> relay)
+      throws RateLimitExceededException
+  {
+    Optional<PreKeyResponseV1> results = getDeviceKey(account, number, String.valueOf(Device.MASTER_ID), relay);
+
+    if (results.isPresent()) return Optional.of(results.get().getKeys().get(0));
+    else                     return Optional.absent();
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/controllers/KeysControllerV2.java

@@ -0,0 +1,156 @@
+/**
+ * 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();
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/controllers/MessageController.java

@@ -16,10 +16,9 @@
  */
 package org.whispersystems.textsecuregcm.controllers;
 
+import com.codahale.metrics.annotation.Timed;
 import com.google.common.base.Optional;
 import com.google.protobuf.ByteString;
-import com.yammer.dropwizard.auth.Auth;
-import com.yammer.metrics.annotation.Timed;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.entities.IncomingMessage;
@@ -56,6 +55,8 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.Set;
 
+import io.dropwizard.auth.Auth;
+
 @Path("/v1/messages")
 public class MessageController {
 
@@ -141,7 +142,7 @@ public class MessageController {
       Optional<Device> destinationDevice = destination.getDevice(incomingMessage.getDestinationDeviceId());
 
       if (destinationDevice.isPresent()) {
-        sendLocalMessage(source, destination, destinationDevice.get(), incomingMessage);
+        sendLocalMessage(source, destination, destinationDevice.get(), messages.getTimestamp(), incomingMessage);
       }
     }
   }
@@ -149,6 +150,7 @@ public class MessageController {
   private void sendLocalMessage(Account source,
                                 Account destinationAccount,
                                 Device destinationDevice,
+                                long timestamp,
                                 IncomingMessage incomingMessage)
       throws NoSuchUserException, IOException
   {
@@ -158,7 +160,7 @@ public class MessageController {
 
       messageBuilder.setType(incomingMessage.getType())
                     .setSource(source.getNumber())
-                    .setTimestamp(System.currentTimeMillis())
+                    .setTimestamp(timestamp == 0 ? System.currentTimeMillis() : timestamp)
                     .setSourceDevice((int)source.getAuthenticatedDevice().get().getId());
 
       if (messageBody.isPresent()) {

src/main/java/org/whispersystems/textsecuregcm/controllers/MismatchedDevicesException.java

@@ -1,7 +1,6 @@
 package org.whispersystems.textsecuregcm.controllers;
 
 import java.util.List;
-import java.util.Set;
 
 public class MismatchedDevicesException extends Exception {
 

src/main/java/org/whispersystems/textsecuregcm/controllers/NoSuchUserException.java

@@ -16,8 +16,6 @@
  */
 package org.whispersystems.textsecuregcm.controllers;
 
-import org.whispersystems.textsecuregcm.federation.NoSuchPeerException;
-
 import java.util.LinkedList;
 import java.util.List;
 
@@ -27,7 +25,7 @@ public class NoSuchUserException extends Exception {
 
   public NoSuchUserException(String user) {
     super(user);
-    missing = new LinkedList<String>();
+    missing = new LinkedList<>();
     missing.add(user);
   }
 

src/main/java/org/whispersystems/textsecuregcm/controllers/ReceiptController.java

@@ -0,0 +1,108 @@
+package org.whispersystems.textsecuregcm.controllers;
+
+import com.codahale.metrics.annotation.Timed;
+import com.google.common.base.Optional;
+import org.whispersystems.textsecuregcm.federation.FederatedClientManager;
+import org.whispersystems.textsecuregcm.federation.NoSuchPeerException;
+import org.whispersystems.textsecuregcm.push.NotPushRegisteredException;
+import org.whispersystems.textsecuregcm.push.PushSender;
+import org.whispersystems.textsecuregcm.push.TransientPushFailureException;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.storage.Device;
+
+import javax.ws.rs.PUT;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.QueryParam;
+import javax.ws.rs.WebApplicationException;
+import javax.ws.rs.core.Response;
+import java.io.IOException;
+import java.util.List;
+
+import io.dropwizard.auth.Auth;
+import static org.whispersystems.textsecuregcm.entities.MessageProtos.OutgoingMessageSignal;
+
+@Path("/v1/receipt")
+public class ReceiptController {
+
+  private final AccountsManager        accountManager;
+  private final PushSender             pushSender;
+  private final FederatedClientManager federatedClientManager;
+
+  public ReceiptController(AccountsManager accountManager,
+                           FederatedClientManager federatedClientManager,
+                           PushSender pushSender)
+  {
+    this.accountManager         = accountManager;
+    this.federatedClientManager = federatedClientManager;
+    this.pushSender             = pushSender;
+  }
+
+  @Timed
+  @PUT
+  @Path("/{destination}/{messageId}")
+  public void sendDeliveryReceipt(@Auth                     Account source,
+                                  @PathParam("destination") String destination,
+                                  @PathParam("messageId")   long messageId,
+                                  @QueryParam("relay")      Optional<String> relay)
+      throws IOException
+  {
+    try {
+      if (relay.isPresent()) sendRelayedReceipt(source, destination, messageId, relay.get());
+      else                   sendDirectReceipt(source, destination, messageId);
+    } catch (NoSuchUserException | NotPushRegisteredException e) {
+      throw new WebApplicationException(Response.Status.NOT_FOUND);
+    } catch (TransientPushFailureException e) {
+      throw new IOException(e);
+    }
+  }
+
+  private void sendRelayedReceipt(Account source, String destination, long messageId, String relay)
+      throws NoSuchUserException, IOException
+  {
+    try {
+      federatedClientManager.getClient(relay)
+                            .sendDeliveryReceipt(source.getNumber(),
+                                                 source.getAuthenticatedDevice().get().getId(),
+                                                 destination, messageId);
+    } catch (NoSuchPeerException e) {
+      throw new NoSuchUserException(e);
+    }
+  }
+
+  private void sendDirectReceipt(Account source, String destination, long messageId)
+      throws NotPushRegisteredException, TransientPushFailureException, NoSuchUserException
+  {
+    Account      destinationAccount = getDestinationAccount(destination);
+    List<Device> destinationDevices = destinationAccount.getDevices();
+
+    OutgoingMessageSignal.Builder message =
+        OutgoingMessageSignal.newBuilder()
+                             .setSource(source.getNumber())
+                             .setSourceDevice((int) source.getAuthenticatedDevice().get().getId())
+                             .setTimestamp(messageId)
+                             .setType(OutgoingMessageSignal.Type.RECEIPT_VALUE);
+
+    if (source.getRelay().isPresent()) {
+      message.setRelay(source.getRelay().get());
+    }
+
+    for (Device destinationDevice : destinationDevices) {
+      pushSender.sendMessage(destinationAccount, destinationDevice, message.build());
+    }
+  }
+
+  private Account getDestinationAccount(String destination)
+      throws NoSuchUserException
+  {
+    Optional<Account> account = accountManager.get(destination);
+
+    if (!account.isPresent()) {
+      throw new NoSuchUserException(destination);
+    }
+
+    return account.get();
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/controllers/WebsocketController.java

@@ -1,155 +0,0 @@
-package org.whispersystems.textsecuregcm.controllers;
-
-import com.fasterxml.jackson.databind.ObjectMapper;
-import org.eclipse.jetty.websocket.WebSocket;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.whispersystems.textsecuregcm.entities.AcknowledgeWebsocketMessage;
-import org.whispersystems.textsecuregcm.entities.IncomingWebsocketMessage;
-import org.whispersystems.textsecuregcm.storage.Account;
-import org.whispersystems.textsecuregcm.storage.Device;
-import org.whispersystems.textsecuregcm.storage.PubSubListener;
-import org.whispersystems.textsecuregcm.storage.PubSubManager;
-import org.whispersystems.textsecuregcm.storage.PubSubMessage;
-import org.whispersystems.textsecuregcm.storage.StoredMessageManager;
-import org.whispersystems.textsecuregcm.websocket.WebsocketAddress;
-import org.whispersystems.textsecuregcm.websocket.WebsocketMessage;
-
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-public class WebsocketController implements WebSocket.OnTextMessage, PubSubListener {
-
-  private static final Logger            logger          = LoggerFactory.getLogger(WebsocketController.class);
-  private static final ObjectMapper      mapper          = new ObjectMapper();
-  private static final Map<Long, String> pendingMessages = new HashMap<>();
-
-  private final StoredMessageManager storedMessageManager;
-  private final PubSubManager        pubSubManager;
-
-  private final Account account;
-  private final Device  device;
-
-  private Connection connection;
-  private long       pendingMessageSequence;
-
-  public WebsocketController(StoredMessageManager storedMessageManager,
-                             PubSubManager pubSubManager,
-                             Account account)
-  {
-    this.storedMessageManager = storedMessageManager;
-    this.pubSubManager        = pubSubManager;
-    this.account              = account;
-    this.device               = account.getAuthenticatedDevice().get();
-  }
-
-
-  @Override
-  public void onOpen(Connection connection) {
-    this.connection = connection;
-    pubSubManager.subscribe(new WebsocketAddress(this.account.getId(), this.device.getId()), this);
-    handleQueryDatabase();
-  }
-
-  @Override
-  public void onClose(int i, String s) {
-    handleClose();
-  }
-
-  @Override
-  public void onMessage(String body) {
-    try {
-      IncomingWebsocketMessage incomingMessage = mapper.readValue(body, IncomingWebsocketMessage.class);
-
-      switch (incomingMessage.getType()) {
-        case IncomingWebsocketMessage.TYPE_ACKNOWLEDGE_MESSAGE: handleMessageAck(body); break;
-        case IncomingWebsocketMessage.TYPE_PING_MESSAGE:        handlePing();           break;
-        default:                                                handleClose();          break;
-      }
-    } catch (IOException e) {
-      logger.debug("Parse", e);
-      handleClose();
-    }
-  }
-
-  @Override
-  public void onPubSubMessage(PubSubMessage outgoingMessage) {
-    switch (outgoingMessage.getType()) {
-      case PubSubMessage.TYPE_DELIVER:  handleDeliverOutgoingMessage(outgoingMessage.getContents()); break;
-      case PubSubMessage.TYPE_QUERY_DB: handleQueryDatabase();                                       break;
-      default:
-        logger.warn("Unknown pubsub message: " + outgoingMessage.getType());
-    }
-  }
-
-  private void handleDeliverOutgoingMessage(String message) {
-    try {
-      long messageSequence;
-
-      synchronized (pendingMessages) {
-        messageSequence = pendingMessageSequence++;
-        pendingMessages.put(messageSequence, message);
-      }
-
-      connection.sendMessage(mapper.writeValueAsString(new WebsocketMessage(messageSequence, message)));
-    } catch (IOException e) {
-      logger.debug("Response failed", e);
-      handleClose();
-    }
-  }
-
-  private void handleMessageAck(String message) {
-    try {
-      AcknowledgeWebsocketMessage ack = mapper.readValue(message, AcknowledgeWebsocketMessage.class);
-
-      synchronized (pendingMessages) {
-        pendingMessages.remove(ack.getId());
-      }
-    } catch (IOException e) {
-      logger.warn("Mapping", e);
-    }
-  }
-
-  private void handlePing() {
-    try {
-      IncomingWebsocketMessage pongMessage = new IncomingWebsocketMessage(IncomingWebsocketMessage.TYPE_PONG_MESSAGE);
-      connection.sendMessage(mapper.writeValueAsString(pongMessage));
-    } catch (IOException e) {
-      logger.warn("Pong failed", e);
-      handleClose();
-    }
-  }
-
-  private void handleClose() {
-    pubSubManager.unsubscribe(new WebsocketAddress(account.getId(), device.getId()), this);
-    connection.close();
-
-    List<String> remainingMessages = new LinkedList<>();
-
-    synchronized (pendingMessages) {
-      Long[] pendingKeys = pendingMessages.keySet().toArray(new Long[0]);
-      Arrays.sort(pendingKeys);
-
-      for (long pendingKey : pendingKeys) {
-        remainingMessages.add(pendingMessages.get(pendingKey));
-      }
-
-      pendingMessages.clear();
-    }
-
-    storedMessageManager.storeMessages(account, device, remainingMessages);
-  }
-
-  private void handleQueryDatabase() {
-    List<String> messages = storedMessageManager.getOutgoingMessages(account, device);
-
-    for (String message : messages) {
-      handleDeliverOutgoingMessage(message);
-    }
-  }
-
-}

src/main/java/org/whispersystems/textsecuregcm/controllers/WebsocketControllerFactory.java

@@ -1,98 +0,0 @@
-package org.whispersystems.textsecuregcm.controllers;
-
-import com.google.common.base.Optional;
-import com.yammer.dropwizard.auth.AuthenticationException;
-import com.yammer.dropwizard.auth.basic.BasicCredentials;
-import org.eclipse.jetty.websocket.WebSocket;
-import org.eclipse.jetty.websocket.WebSocketServlet;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.whispersystems.textsecuregcm.auth.AccountAuthenticator;
-import org.whispersystems.textsecuregcm.storage.Account;
-import org.whispersystems.textsecuregcm.storage.PubSubManager;
-import org.whispersystems.textsecuregcm.storage.StoredMessageManager;
-
-import javax.servlet.http.HttpServletRequest;
-import java.util.LinkedHashMap;
-import java.util.Map;
-
-
-public class WebsocketControllerFactory extends WebSocketServlet {
-
-  private final Logger logger = LoggerFactory.getLogger(WebsocketControllerFactory.class);
-
-  private final StoredMessageManager storedMessageManager;
-  private final PubSubManager        pubSubManager;
-  private final AccountAuthenticator accountAuthenticator;
-
-  private final LinkedHashMap<BasicCredentials, Optional<Account>> cache =
-      new LinkedHashMap<BasicCredentials, Optional<Account>>() {
-    @Override
-    protected boolean removeEldestEntry(Map.Entry<BasicCredentials, Optional<Account>> eldest) {
-      return size() > 10;
-    }
-  };
-
-  public WebsocketControllerFactory(AccountAuthenticator accountAuthenticator,
-                                    StoredMessageManager storedMessageManager,
-                                    PubSubManager pubSubManager)
-  {
-    this.accountAuthenticator = accountAuthenticator;
-    this.storedMessageManager = storedMessageManager;
-    this.pubSubManager        = pubSubManager;
-  }
-
-  @Override
-  public WebSocket doWebSocketConnect(HttpServletRequest request, String s) {
-    try {
-      String username = request.getParameter("user");
-      String password = request.getParameter("password");
-
-      if (username == null || password == null) {
-        return null;
-      }
-
-      BasicCredentials credentials = new BasicCredentials(username, password);
-
-      Optional<Account> account = cache.remove(credentials);
-
-      if (account == null) {
-        account = accountAuthenticator.authenticate(new BasicCredentials(username, password));
-      }
-
-      if (!account.isPresent()) {
-        return null;
-      }
-
-      return new WebsocketController(storedMessageManager, pubSubManager, account.get());
-    } catch (AuthenticationException e) {
-      throw new AssertionError(e);
-    }
-  }
-
-  @Override
-  public boolean checkOrigin(HttpServletRequest request, String origin) {
-    try {
-      String username = request.getParameter("user");
-      String password = request.getParameter("password");
-
-      if (username == null || password == null) {
-        return false;
-      }
-
-      BasicCredentials  credentials = new BasicCredentials(username, password);
-      Optional<Account> account     = accountAuthenticator.authenticate(credentials);
-
-      if (!account.isPresent()) {
-        return false;
-      }
-
-      cache.put(credentials, account);
-
-      return true;
-    } catch (AuthenticationException e) {
-      logger.warn("Auth Failure", e);
-      return false;
-    }
-  }
-}

src/main/java/org/whispersystems/textsecuregcm/entities/ApnMessage.java

@@ -0,0 +1,34 @@
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.annotations.VisibleForTesting;
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.validation.constraints.Min;
+
+public class ApnMessage {
+  @JsonProperty
+  @NotEmpty
+  private String apnId;
+
+  @JsonProperty
+  @NotEmpty
+  private String number;
+
+  @JsonProperty
+  @Min(1)
+  private int deviceId;
+
+  @JsonProperty
+  @NotEmpty
+  private String message;
+
+  public ApnMessage() {}
+
+  public ApnMessage(String apnId, String number, int deviceId, String message) {
+    this.apnId    = apnId;
+    this.number   = number;
+    this.deviceId = deviceId;
+    this.message  = message;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/ClientContactTokens.java

@@ -30,4 +30,11 @@ public class ClientContactTokens {
   public List<String> getContacts() {
     return contacts;
   }
+
+  public ClientContactTokens() {}
+
+  public ClientContactTokens(List<String> contacts) {
+    this.contacts = contacts;
+  }
+
 }

src/main/java/org/whispersystems/textsecuregcm/entities/EncryptedOutgoingMessage.java

@@ -41,23 +41,22 @@ public class EncryptedOutgoingMessage {
   private static final int    MAC_KEY_SIZE    = 20;
   private static final int    MAC_SIZE        = 10;
 
-  private final OutgoingMessageSignal outgoingMessage;
-  private final String signalingKey;
+  private final String serialized;
 
   public EncryptedOutgoingMessage(OutgoingMessageSignal outgoingMessage,
                                   String signalingKey)
+      throws CryptoEncodingException
   {
-    this.outgoingMessage = outgoingMessage;
-    this.signalingKey    = signalingKey;
-  }
-
-  public String serialize() throws CryptoEncodingException {
     byte[]        plaintext  = outgoingMessage.toByteArray();
     SecretKeySpec cipherKey  = getCipherKey (signalingKey);
     SecretKeySpec macKey     = getMacKey(signalingKey);
     byte[]        ciphertext = getCiphertext(plaintext, cipherKey, macKey);
 
-    return Base64.encodeBytes(ciphertext);
+    this.serialized = Base64.encodeBytes(ciphertext);
+  }
+
+  public String serialize() {
+    return serialized;
   }
 
   private byte[] getCiphertext(byte[] plaintext, SecretKeySpec cipherKey, SecretKeySpec macKey)

src/main/java/org/whispersystems/textsecuregcm/entities/GcmMessage.java

@@ -0,0 +1,39 @@
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.validation.constraints.Min;
+
+public class GcmMessage {
+
+  @JsonProperty
+  @NotEmpty
+  private String gcmId;
+
+  @JsonProperty
+  @NotEmpty
+  private String number;
+
+  @JsonProperty
+  @Min(1)
+  private int deviceId;
+
+  @JsonProperty
+  @NotEmpty
+  private String message;
+
+  @JsonProperty
+  private boolean receipt;
+
+  public GcmMessage() {}
+
+  public GcmMessage(String gcmId, String number, int deviceId, String message, boolean receipt) {
+    this.gcmId    = gcmId;
+    this.number   = number;
+    this.deviceId = deviceId;
+    this.message  = message;
+    this.receipt  = receipt;
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/entities/IncomingMessage.java

@@ -41,7 +41,7 @@ public class IncomingMessage {
   private String relay;
 
   @JsonProperty
-  private long   timestamp;
+  private long   timestamp; // deprecated
 
 
   public String getDestination() {

src/main/java/org/whispersystems/textsecuregcm/entities/IncomingMessageList.java

@@ -32,6 +32,9 @@ public class IncomingMessageList {
   @JsonProperty
   private String relay;
 
+  @JsonProperty
+  private long timestamp;
+
   public IncomingMessageList() {}
 
   public List<IncomingMessage> getMessages() {
@@ -45,4 +48,8 @@ public class IncomingMessageList {
   public void setRelay(String relay) {
     this.relay = relay;
   }
+
+  public long getTimestamp() {
+    return timestamp;
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/entities/PendingMessage.java

@@ -0,0 +1,60 @@
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class PendingMessage {
+
+  @JsonProperty
+  private String sender;
+
+  @JsonProperty
+  private long   messageId;
+
+  @JsonProperty
+  private String encryptedOutgoingMessage;
+
+  @JsonProperty
+  private boolean receipt;
+
+  public PendingMessage() {}
+
+  public PendingMessage(String sender, long messageId, boolean receipt, String encryptedOutgoingMessage) {
+    this.sender                    = sender;
+    this.messageId                 = messageId;
+    this.receipt                   = receipt;
+    this.encryptedOutgoingMessage  = encryptedOutgoingMessage;
+  }
+
+  public String getEncryptedOutgoingMessage() {
+    return encryptedOutgoingMessage;
+  }
+
+  public long getMessageId() {
+    return messageId;
+  }
+
+  public String getSender() {
+    return sender;
+  }
+
+  public boolean isReceipt() {
+    return receipt;
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == null || !(other instanceof PendingMessage)) return false;
+    PendingMessage that = (PendingMessage)other;
+
+    return
+        this.sender.equals(that.sender) &&
+        this.messageId == that.messageId &&
+        this.receipt == that.receipt     &&
+        this.encryptedOutgoingMessage.equals(that.encryptedOutgoingMessage);
+  }
+
+  @Override
+  public int hashCode() {
+    return this.sender.hashCode() ^ (int)this.messageId ^ this.encryptedOutgoingMessage.hashCode() ^ (receipt ? 1 : 0);
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyBase.java

@@ -0,0 +1,8 @@
+package org.whispersystems.textsecuregcm.entities;
+
+public interface PreKeyBase {
+
+  public long getKeyId();
+  public String getPublicKey();
+
+}

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyCount.java

@@ -0,0 +1,20 @@
+package org.whispersystems.textsecuregcm.entities;
+
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+public class PreKeyCount {
+
+  @JsonProperty
+  private int count;
+
+  public PreKeyCount(int count) {
+    this.count = count;
+  }
+
+  public PreKeyCount() {}
+
+  public int getCount() {
+    return count;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyResponseItemV2.java

@@ -0,0 +1,64 @@
+/**
+ * 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.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.annotations.VisibleForTesting;
+
+public class PreKeyResponseItemV2 {
+
+  @JsonProperty
+  private long deviceId;
+
+  @JsonProperty
+  private int registrationId;
+
+  @JsonProperty
+  private SignedPreKey signedPreKey;
+
+  @JsonProperty
+  private PreKeyV2 preKey;
+
+  public PreKeyResponseItemV2() {}
+
+  public PreKeyResponseItemV2(long deviceId, int registrationId, SignedPreKey signedPreKey, PreKeyV2 preKey) {
+    this.deviceId       = deviceId;
+    this.registrationId = registrationId;
+    this.signedPreKey   = signedPreKey;
+    this.preKey         = preKey;
+  }
+
+  @VisibleForTesting
+  public SignedPreKey getSignedPreKey() {
+    return signedPreKey;
+  }
+
+  @VisibleForTesting
+  public PreKeyV2 getPreKey() {
+    return preKey;
+  }
+
+  @VisibleForTesting
+  public int getRegistrationId() {
+    return registrationId;
+  }
+
+  @VisibleForTesting
+  public long getDeviceId() {
+    return deviceId;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyResponseV1.java

@@ -18,7 +18,6 @@ package org.whispersystems.textsecuregcm.entities;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.common.annotations.VisibleForTesting;
-import org.hibernate.validator.constraints.NotEmpty;
 
 import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
@@ -26,36 +25,36 @@ import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.List;
 
-public class UnstructuredPreKeyList {
+public class PreKeyResponseV1 {
 
   @JsonProperty
   @NotNull
   @Valid
-  private List<PreKey> keys;
+  private List<PreKeyV1> keys;
 
   @VisibleForTesting
-  public UnstructuredPreKeyList() {}
+  public PreKeyResponseV1() {}
 
-  public UnstructuredPreKeyList(PreKey preKey) {
-    this.keys = new LinkedList<PreKey>();
+  public PreKeyResponseV1(PreKeyV1 preKey) {
+    this.keys = new LinkedList<>();
     this.keys.add(preKey);
   }
 
-  public UnstructuredPreKeyList(List<PreKey> preKeys) {
+  public PreKeyResponseV1(List<PreKeyV1> preKeys) {
     this.keys = preKeys;
   }
 
-  public List<PreKey> getKeys() {
+  public List<PreKeyV1> getKeys() {
     return keys;
   }
 
   @VisibleForTesting
   public boolean equals(Object o) {
-    if (!(o instanceof UnstructuredPreKeyList) ||
-        ((UnstructuredPreKeyList) o).keys.size() != keys.size())
+    if (!(o instanceof PreKeyResponseV1) ||
+        ((PreKeyResponseV1) o).keys.size() != keys.size())
       return false;
-    Iterator<PreKey> otherKeys = ((UnstructuredPreKeyList) o).keys.iterator();
-    for (PreKey key : keys) {
+    Iterator<PreKeyV1> otherKeys = ((PreKeyResponseV1) o).keys.iterator();
+    for (PreKeyV1 key : keys) {
       if (!otherKeys.next().equals(key))
         return false;
     }
@@ -64,7 +63,7 @@ public class UnstructuredPreKeyList {
 
   public int hashCode() {
     int ret = 0xFBA4C795 * keys.size();
-    for (PreKey key : keys)
+    for (PreKeyV1 key : keys)
       ret ^= key.getPublicKey().hashCode();
     return ret;
   }

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyResponseV2.java

@@ -0,0 +1,48 @@
+/**
+ * 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.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.annotations.VisibleForTesting;
+
+import java.util.List;
+
+public class PreKeyResponseV2 {
+
+  @JsonProperty
+  private String identityKey;
+
+  @JsonProperty
+  private List<PreKeyResponseItemV2> devices;
+
+  public PreKeyResponseV2() {}
+
+  public PreKeyResponseV2(String identityKey, List<PreKeyResponseItemV2> devices) {
+    this.identityKey = identityKey;
+    this.devices     = devices;
+  }
+
+  @VisibleForTesting
+  public String getIdentityKey() {
+    return identityKey;
+  }
+
+  @VisibleForTesting
+  public List<PreKeyResponseItemV2> getDevices() {
+    return devices;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyStateV1.java

@@ -1,5 +1,5 @@
 /**
- * Copyright (C) 2013 Open WhisperSystems
+ * 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
@@ -17,28 +17,39 @@
 package org.whispersystems.textsecuregcm.entities;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
-import org.hibernate.validator.constraints.NotEmpty;
+import com.google.common.annotations.VisibleForTesting;
 
 import javax.validation.Valid;
 import javax.validation.constraints.NotNull;
 import java.util.List;
 
-public class PreKeyList {
-
-  @JsonProperty
-  @NotNull
-  private PreKey lastResortKey;
+public class PreKeyStateV1 {
 
   @JsonProperty
   @NotNull
   @Valid
-  private List<PreKey> keys;
+  private PreKeyV1 lastResortKey;
 
-  public List<PreKey> getKeys() {
+  @JsonProperty
+  @NotNull
+  @Valid
+  private List<PreKeyV1> keys;
+
+  public List<PreKeyV1> getKeys() {
     return keys;
   }
 
-  public PreKey getLastResortKey() {
+  @VisibleForTesting
+  public void setKeys(List<PreKeyV1> keys) {
+    this.keys = keys;
+  }
+
+  public PreKeyV1 getLastResortKey() {
     return lastResortKey;
   }
+
+  @VisibleForTesting
+  public void setLastResortKey(PreKeyV1 lastResortKey) {
+    this.lastResortKey = lastResortKey;
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyStateV2.java

@@ -0,0 +1,76 @@
+/**
+ * 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.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.annotations.VisibleForTesting;
+
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.validation.Valid;
+import javax.validation.constraints.NotNull;
+import java.util.List;
+
+public class PreKeyStateV2 {
+
+  @JsonProperty
+  @NotNull
+  @Valid
+  private List<PreKeyV2> preKeys;
+
+  @JsonProperty
+  @NotNull
+  @Valid
+  private SignedPreKey signedPreKey;
+
+  @JsonProperty
+  @NotNull
+  @Valid
+  private PreKeyV2 lastResortKey;
+
+  @JsonProperty
+  @NotEmpty
+  private String identityKey;
+
+  public PreKeyStateV2() {}
+
+  @VisibleForTesting
+  public PreKeyStateV2(String identityKey, SignedPreKey signedPreKey,
+                       List<PreKeyV2> keys, PreKeyV2 lastResortKey)
+  {
+    this.identityKey   = identityKey;
+    this.signedPreKey  = signedPreKey;
+    this.preKeys       = keys;
+    this.lastResortKey = lastResortKey;
+  }
+
+  public List<PreKeyV2> getPreKeys() {
+    return preKeys;
+  }
+
+  public SignedPreKey getSignedPreKey() {
+    return signedPreKey;
+  }
+
+  public String getIdentityKey() {
+    return identityKey;
+  }
+
+  public PreKeyV2 getLastResortKey() {
+    return lastResortKey;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyV1.java

@@ -1,5 +1,5 @@
 /**
- * Copyright (C) 2013 Open WhisperSystems
+ * 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
@@ -17,22 +17,14 @@
 package org.whispersystems.textsecuregcm.entities;
 
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import com.google.common.annotations.VisibleForTesting;
 
 import javax.validation.constraints.NotNull;
-import javax.xml.bind.annotation.XmlTransient;
-import java.io.Serializable;
 
 @JsonInclude(JsonInclude.Include.NON_DEFAULT)
-public class PreKey {
-
-  @JsonIgnore
-  private long    id;
-
-  @JsonIgnore
-  private String  number;
+public class PreKeyV1 implements PreKeyBase {
 
   @JsonProperty
   private long deviceId;
@@ -49,78 +41,43 @@ public class PreKey {
   @NotNull
   private String  identityKey;
 
-  @JsonProperty
-  private boolean lastResort;
-
   @JsonProperty
   private int registrationId;
 
-  public PreKey() {}
+  public PreKeyV1() {}
 
-  public PreKey(long id, String number, long deviceId, long keyId,
-                String publicKey, String identityKey,
-                boolean lastResort)
+  public PreKeyV1(long deviceId, long keyId, String publicKey, String identityKey, int registrationId)
+  {
+    this.deviceId       = deviceId;
+    this.keyId          = keyId;
+    this.publicKey      = publicKey;
+    this.identityKey    = identityKey;
+    this.registrationId = registrationId;
+  }
+
+  @VisibleForTesting
+  public PreKeyV1(long deviceId, long keyId, String publicKey, String identityKey)
   {
-    this.id          = id;
-    this.number      = number;
     this.deviceId    = deviceId;
     this.keyId       = keyId;
     this.publicKey   = publicKey;
     this.identityKey = identityKey;
-    this.lastResort  = lastResort;
-  }
-
-  @XmlTransient
-  public long getId() {
-    return id;
-  }
-
-  public void setId(long id) {
-    this.id = id;
-  }
-
-  @XmlTransient
-  public String getNumber() {
-    return number;
-  }
-
-  public void setNumber(String number) {
-    this.number = number;
   }
 
+  @Override
   public String getPublicKey() {
     return publicKey;
   }
 
-  public void setPublicKey(String publicKey) {
-    this.publicKey = publicKey;
-  }
-
+  @Override
   public long getKeyId() {
     return keyId;
   }
 
-  public void setKeyId(long keyId) {
-    this.keyId = keyId;
-  }
-
   public String getIdentityKey() {
     return identityKey;
   }
 
-  public void setIdentityKey(String identityKey) {
-    this.identityKey = identityKey;
-  }
-
-  @XmlTransient
-  public boolean isLastResort() {
-    return lastResort;
-  }
-
-  public void setLastResort(boolean lastResort) {
-    this.lastResort = lastResort;
-  }
-
   public void setDeviceId(long deviceId) {
     this.deviceId = deviceId;
   }

src/main/java/org/whispersystems/textsecuregcm/entities/PreKeyV2.java

@@ -0,0 +1,82 @@
+package org.whispersystems.textsecuregcm.entities;
+
+/**
+ * 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/>.
+ */
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.validation.constraints.NotNull;
+
+public class PreKeyV2 implements PreKeyBase {
+
+  @JsonProperty
+  @NotNull
+  private long    keyId;
+
+  @JsonProperty
+  @NotEmpty
+  private String  publicKey;
+
+  public PreKeyV2() {}
+
+  public PreKeyV2(long keyId, String publicKey)
+  {
+    this.keyId     = keyId;
+    this.publicKey = publicKey;
+  }
+
+  @Override
+  public String getPublicKey() {
+    return publicKey;
+  }
+
+  public void setPublicKey(String publicKey) {
+    this.publicKey = publicKey;
+  }
+
+  @Override
+  public long getKeyId() {
+    return keyId;
+  }
+
+  public void setKeyId(long keyId) {
+    this.keyId = keyId;
+  }
+
+  @Override
+  public boolean equals(Object object) {
+    if (object == null || !(object instanceof PreKeyV2)) return false;
+    PreKeyV2 that = (PreKeyV2)object;
+
+    if (publicKey == null) {
+      return this.keyId == that.keyId && that.publicKey == null;
+    } else {
+      return this.keyId == that.keyId && this.publicKey.equals(that.publicKey);
+    }
+  }
+
+  @Override
+  public int hashCode() {
+    if (publicKey == null) {
+      return (int)this.keyId;
+    } else {
+      return ((int)this.keyId) ^ publicKey.hashCode();
+    }
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/entities/SignedPreKey.java

@@ -0,0 +1,46 @@
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.hibernate.validator.constraints.NotEmpty;
+
+import java.io.Serializable;
+
+public class SignedPreKey extends PreKeyV2 {
+
+  @JsonProperty
+  @NotEmpty
+  private String signature;
+
+  public SignedPreKey() {}
+
+  public SignedPreKey(long keyId, String publicKey, String signature) {
+    super(keyId, publicKey);
+    this.signature = signature;
+  }
+
+  public String getSignature() {
+    return signature;
+  }
+
+  @Override
+  public boolean equals(Object object) {
+    if (object == null || !(object instanceof SignedPreKey)) return false;
+    SignedPreKey that = (SignedPreKey) object;
+
+    if (signature == null) {
+      return super.equals(object) && that.signature == null;
+    } else {
+      return super.equals(object) && this.signature.equals(that.signature);
+    }
+  }
+
+  @Override
+  public int hashCode() {
+    if (signature == null) {
+      return super.hashCode();
+    } else {
+      return super.hashCode() ^ signature.hashCode();
+    }
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/entities/UnregisteredEvent.java

@@ -0,0 +1,33 @@
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.hibernate.validator.constraints.NotEmpty;
+
+import javax.validation.constraints.Min;
+
+public class UnregisteredEvent {
+
+  @JsonProperty
+  @NotEmpty
+  private String registrationId;
+
+  @JsonProperty
+  @NotEmpty
+  private String number;
+
+  @JsonProperty
+  @Min(1)
+  private int deviceId;
+
+  public String getRegistrationId() {
+    return registrationId;
+  }
+
+  public String getNumber() {
+    return number;
+  }
+
+  public int getDeviceId() {
+    return deviceId;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/entities/UnregisteredEventList.java

@@ -0,0 +1,17 @@
+package org.whispersystems.textsecuregcm.entities;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class UnregisteredEventList {
+
+  @JsonProperty
+  private List<UnregisteredEvent> devices;
+
+  public List<UnregisteredEvent> getDevices() {
+    if (devices == null) return new LinkedList<>();
+    else                 return devices;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/federation/FederatedClient.java

@@ -36,7 +36,8 @@ import org.whispersystems.textsecuregcm.entities.AttachmentUri;
 import org.whispersystems.textsecuregcm.entities.ClientContact;
 import org.whispersystems.textsecuregcm.entities.ClientContacts;
 import org.whispersystems.textsecuregcm.entities.IncomingMessageList;
-import org.whispersystems.textsecuregcm.entities.UnstructuredPreKeyList;
+import org.whispersystems.textsecuregcm.entities.PreKeyResponseV1;
+import org.whispersystems.textsecuregcm.entities.PreKeyResponseV2;
 import org.whispersystems.textsecuregcm.util.Base64;
 
 import javax.net.ssl.SSLContext;
@@ -62,11 +63,13 @@ public class FederatedClient {
 
   private final Logger logger = LoggerFactory.getLogger(FederatedClient.class);
 
-  private static final String USER_COUNT_PATH     = "/v1/federation/user_count";
-  private static final String USER_TOKENS_PATH    = "/v1/federation/user_tokens/%d";
-  private static final String RELAY_MESSAGE_PATH  = "/v1/federation/messages/%s/%d/%s";
-  private static final String PREKEY_PATH_DEVICE  = "/v1/federation/key/%s/%s";
-  private static final String ATTACHMENT_URI_PATH = "/v1/federation/attachment/%d";
+  private static final String USER_COUNT_PATH       = "/v1/federation/user_count";
+  private static final String USER_TOKENS_PATH      = "/v1/federation/user_tokens/%d";
+  private static final String RELAY_MESSAGE_PATH    = "/v1/federation/messages/%s/%d/%s";
+  private static final String PREKEY_PATH_DEVICE_V1 = "/v1/federation/key/%s/%s";
+  private static final String PREKEY_PATH_DEVICE_V2 = "/v2/federation/key/%s/%s";
+  private static final String ATTACHMENT_URI_PATH   = "/v1/federation/attachment/%d";
+  private static final String RECEIPT_PATH          = "/v1/receipt/%s/%d/%s/%d";
 
   private final FederatedPeer peer;
   private final Client        client;
@@ -107,9 +110,9 @@ public class FederatedClient {
     }
   }
 
-  public Optional<UnstructuredPreKeyList> getKeys(String destination, String device) {
+  public Optional<PreKeyResponseV1> getKeysV1(String destination, String device) {
     try {
-      WebResource resource = client.resource(peer.getUrl()).path(String.format(PREKEY_PATH_DEVICE, destination, device));
+      WebResource resource = client.resource(peer.getUrl()).path(String.format(PREKEY_PATH_DEVICE_V1, destination, device));
 
       ClientResponse response = resource.accept(MediaType.APPLICATION_JSON)
                                         .header("Authorization", authorizationHeader)
@@ -119,7 +122,7 @@ public class FederatedClient {
         throw new WebApplicationException(clientResponseToResponse(response));
       }
 
-      return Optional.of(response.getEntity(UnstructuredPreKeyList.class));
+      return Optional.of(response.getEntity(PreKeyResponseV1.class));
 
     } catch (UniformInterfaceException | ClientHandlerException e) {
       logger.warn("PreKey", e);
@@ -127,6 +130,27 @@ public class FederatedClient {
     }
   }
 
+  public Optional<PreKeyResponseV2> getKeysV2(String destination, String device) {
+    try {
+      WebResource resource = client.resource(peer.getUrl()).path(String.format(PREKEY_PATH_DEVICE_V2, destination, device));
+
+      ClientResponse response = resource.accept(MediaType.APPLICATION_JSON)
+                                        .header("Authorization", authorizationHeader)
+                                        .get(ClientResponse.class);
+
+      if (response.getStatus() < 200 || response.getStatus() >= 300) {
+        throw new WebApplicationException(clientResponseToResponse(response));
+      }
+
+      return Optional.of(response.getEntity(PreKeyResponseV2.class));
+
+    } catch (UniformInterfaceException | ClientHandlerException e) {
+      logger.warn("PreKey", e);
+      return Optional.absent();
+    }
+  }
+
+
   public int getUserCount() {
     try {
       WebResource  resource = client.resource(peer.getUrl()).path(USER_COUNT_PATH);
@@ -174,6 +198,25 @@ public class FederatedClient {
     }
   }
 
+  public void sendDeliveryReceipt(String source, long sourceDeviceId, String destination, long messageId)
+      throws IOException
+  {
+    try {
+      String         path     = String.format(RECEIPT_PATH, source, sourceDeviceId, destination, messageId);
+      WebResource    resource = client.resource(peer.getUrl()).path(path);
+      ClientResponse response = resource.type(MediaType.APPLICATION_JSON)
+                                        .header("Authorization", authorizationHeader)
+                                        .put(ClientResponse.class);
+
+      if (response.getStatus() != 200 && response.getStatus() != 204) {
+        throw new WebApplicationException(clientResponseToResponse(response));
+      }
+    } catch (UniformInterfaceException | ClientHandlerException e) {
+      logger.warn("sendMessage", e);
+      throw new IOException(e);
+    }
+  }
+
   private String getAuthorizationHeader(String federationName, FederatedPeer peer) {
     return "Basic " + Base64.encodeBytes((federationName + ":" + peer.getAuthenticationToken()).getBytes());
   }

src/main/java/org/whispersystems/textsecuregcm/federation/NonLimitedAccount.java

@@ -40,6 +40,6 @@ public class NonLimitedAccount extends Account {
 
   @Override
   public Optional<Device> getAuthenticatedDevice() {
-    return Optional.of(new Device(deviceId, null, null, null, null, null, false, 0));
+    return Optional.of(new Device(deviceId, null, null, null, null, null, false, 0, null));
   }
 }

src/main/java/org/whispersystems/textsecuregcm/limits/RateLimiter.java

@@ -16,13 +16,14 @@
  */
 package org.whispersystems.textsecuregcm.limits;
 
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
 import net.spy.memcached.MemcachedClient;
-
 import org.whispersystems.textsecuregcm.controllers.RateLimitExceededException;
+import org.whispersystems.textsecuregcm.util.Constants;
 
-import java.util.concurrent.TimeUnit;
+import static com.codahale.metrics.MetricRegistry.name;
 
 public class RateLimiter {
 
@@ -35,7 +36,9 @@ public class RateLimiter {
   public RateLimiter(MemcachedClient memcachedClient, String name,
                      int bucketSize, double leakRatePerMinute)
   {
-    this.meter             = Metrics.newMeter(RateLimiter.class, name, "exceeded", TimeUnit.MINUTES);
+    MetricRegistry metricRegistry = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
+
+    this.meter             = metricRegistry.meter(name(getClass(), name, "exceeded"));
     this.memcachedClient   = memcachedClient;
     this.name              = name;
     this.bucketSize        = bucketSize;

src/main/java/org/whispersystems/textsecuregcm/metrics/CpuUsageGauge.java

@@ -0,0 +1,16 @@
+package org.whispersystems.textsecuregcm.metrics;
+
+import com.codahale.metrics.Gauge;
+import com.sun.management.OperatingSystemMXBean;
+
+import java.lang.management.ManagementFactory;
+
+public class CpuUsageGauge implements Gauge<Integer> {
+  @Override
+  public Integer getValue() {
+    OperatingSystemMXBean mbean = (com.sun.management.OperatingSystemMXBean)
+        ManagementFactory.getOperatingSystemMXBean();
+
+    return (int) Math.ceil(mbean.getSystemCpuLoad() * 100);
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/metrics/FreeMemoryGauge.java

@@ -0,0 +1,17 @@
+package org.whispersystems.textsecuregcm.metrics;
+
+import com.codahale.metrics.Gauge;
+import com.sun.management.OperatingSystemMXBean;
+
+import java.lang.management.ManagementFactory;
+
+public class FreeMemoryGauge implements Gauge<Long> {
+
+  @Override
+  public Long getValue() {
+    OperatingSystemMXBean mbean = (com.sun.management.OperatingSystemMXBean)
+        ManagementFactory.getOperatingSystemMXBean();
+
+    return mbean.getFreePhysicalMemorySize();
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/metrics/JsonMetricsReporter.java

@@ -0,0 +1,184 @@
+package org.whispersystems.textsecuregcm.metrics;
+
+import com.codahale.metrics.Counter;
+import com.codahale.metrics.Gauge;
+import com.codahale.metrics.Histogram;
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.Metered;
+import com.codahale.metrics.MetricFilter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.ScheduledReporter;
+import com.codahale.metrics.Snapshot;
+import com.codahale.metrics.Timer;
+import com.fasterxml.jackson.core.JsonEncoding;
+import com.fasterxml.jackson.core.JsonFactory;
+import com.fasterxml.jackson.core.JsonGenerator;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.InetAddress;
+import java.net.URL;
+import java.net.UnknownHostException;
+import java.util.Map;
+import java.util.SortedMap;
+import java.util.concurrent.TimeUnit;
+import java.util.regex.Pattern;
+
+/**
+ * Adapted from MetricsServlet.
+ */
+public class JsonMetricsReporter extends ScheduledReporter {
+
+  private final Logger      logger  = LoggerFactory.getLogger(JsonMetricsReporter.class);
+  private final JsonFactory factory = new JsonFactory();
+
+  private final String table;
+  private final String sunnylabsHost;
+  private final String host;
+
+  public JsonMetricsReporter(MetricRegistry registry, String token, String sunnylabsHost)
+      throws UnknownHostException
+  {
+    super(registry, "jsonmetrics-reporter", MetricFilter.ALL, TimeUnit.SECONDS, TimeUnit.MILLISECONDS);
+    this.table         = token;
+    this.sunnylabsHost = sunnylabsHost;
+    this.host          = InetAddress.getLocalHost().getHostName();
+  }
+
+  @Override
+  public void report(SortedMap<String, Gauge>     stringGaugeSortedMap,
+                     SortedMap<String, Counter>   stringCounterSortedMap,
+                     SortedMap<String, Histogram> stringHistogramSortedMap,
+                     SortedMap<String, Meter>     stringMeterSortedMap,
+                     SortedMap<String, Timer>     stringTimerSortedMap)
+  {
+    try {
+      logger.info("Reporting metrics...");
+      URL url = new URL("https", sunnylabsHost, 443, "/report/metrics?t=" + table + "&h=" + host);
+      HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+
+      connection.setDoOutput(true);
+      connection.addRequestProperty("Content-Type", "application/json");
+
+      OutputStream  outputStream = connection.getOutputStream();
+      JsonGenerator json         = factory.createGenerator(outputStream, JsonEncoding.UTF8);
+
+      json.writeStartObject();
+
+      for (Map.Entry<String, Gauge> gauge : stringGaugeSortedMap.entrySet()) {
+        reportGauge(json, gauge.getKey(), gauge.getValue());
+      }
+
+      for (Map.Entry<String, Counter> counter : stringCounterSortedMap.entrySet()) {
+        reportCounter(json, counter.getKey(), counter.getValue());
+      }
+
+      for (Map.Entry<String, Histogram> histogram : stringHistogramSortedMap.entrySet()) {
+        reportHistogram(json, histogram.getKey(), histogram.getValue());
+      }
+
+      for (Map.Entry<String, Meter> meter : stringMeterSortedMap.entrySet()) {
+        reportMeter(json, meter.getKey(), meter.getValue());
+      }
+
+      for (Map.Entry<String, Timer> timer : stringTimerSortedMap.entrySet()) {
+        reportTimer(json, timer.getKey(), timer.getValue());
+      }
+
+      json.writeEndObject();
+      json.close();
+
+      outputStream.close();
+
+      logger.info("Metrics server response: " + connection.getResponseCode());
+    } catch (IOException e) {
+      logger.warn("Error sending metrics", e);
+    } catch (Exception e) {
+      logger.warn("error", e);
+    }
+  }
+
+  private void reportGauge(JsonGenerator json, String name, Gauge gauge) throws IOException {
+    Object gaugeValue = evaluateGauge(gauge);
+
+    if (gaugeValue instanceof Number) {
+      json.writeFieldName(sanitize(name));
+      json.writeObject(gaugeValue);
+    }
+  }
+
+  private void reportCounter(JsonGenerator json, String name, Counter counter) throws IOException {
+    json.writeFieldName(sanitize(name));
+    json.writeNumber(counter.getCount());
+  }
+
+  private void reportHistogram(JsonGenerator json, String name, Histogram histogram) throws IOException {
+    Snapshot snapshot = histogram.getSnapshot();
+    json.writeFieldName(sanitize(name));
+    json.writeStartObject();
+    json.writeNumberField("count", histogram.getCount());
+    writeSnapshot(json, snapshot);
+    json.writeEndObject();
+  }
+
+  private void reportMeter(JsonGenerator json, String name, Meter meter) throws IOException {
+    json.writeFieldName(sanitize(name));
+    json.writeStartObject();
+    writeMetered(json, meter);
+    json.writeEndObject();
+  }
+
+  private void reportTimer(JsonGenerator json, String name, Timer timer) throws IOException {
+    json.writeFieldName(sanitize(name));
+    json.writeStartObject();
+    json.writeFieldName("rate");
+    json.writeStartObject();
+    writeMetered(json, timer);
+    json.writeEndObject();
+    json.writeFieldName("duration");
+    json.writeStartObject();
+    writeSnapshot(json, timer.getSnapshot());
+    json.writeEndObject();
+    json.writeEndObject();
+  }
+
+  private Object evaluateGauge(Gauge gauge) {
+    try {
+      return gauge.getValue();
+    } catch (RuntimeException e) {
+      logger.warn("Error reading gauge", e);
+      return "error reading gauge";
+    }
+  }
+
+  private void writeSnapshot(JsonGenerator json, Snapshot snapshot) throws IOException {
+    json.writeNumberField("max", convertDuration(snapshot.getMax()));
+    json.writeNumberField("mean", convertDuration(snapshot.getMean()));
+    json.writeNumberField("min", convertDuration(snapshot.getMin()));
+    json.writeNumberField("stddev", convertDuration(snapshot.getStdDev()));
+    json.writeNumberField("median", convertDuration(snapshot.getMedian()));
+    json.writeNumberField("p75", convertDuration(snapshot.get75thPercentile()));
+    json.writeNumberField("p95", convertDuration(snapshot.get95thPercentile()));
+    json.writeNumberField("p98", convertDuration(snapshot.get98thPercentile()));
+    json.writeNumberField("p99", convertDuration(snapshot.get99thPercentile()));
+    json.writeNumberField("p999", convertDuration(snapshot.get999thPercentile()));
+  }
+
+  private void writeMetered(JsonGenerator json, Metered meter) throws IOException {
+    json.writeNumberField("count", convertRate(meter.getCount()));
+    json.writeNumberField("mean", convertRate(meter.getMeanRate()));
+    json.writeNumberField("m1", convertRate(meter.getOneMinuteRate()));
+    json.writeNumberField("m5", convertRate(meter.getFiveMinuteRate()));
+    json.writeNumberField("m15", convertRate(meter.getFifteenMinuteRate()));
+  }
+
+  private static final Pattern SIMPLE_NAMES = Pattern.compile("[^a-zA-Z0-9_.\\-~]");
+
+  private String sanitize(String metricName) {
+    return SIMPLE_NAMES.matcher(metricName).replaceAll("_");
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/metrics/NetworkGauge.java

@@ -0,0 +1,36 @@
+package org.whispersystems.textsecuregcm.metrics;
+
+
+import com.codahale.metrics.Gauge;
+import org.whispersystems.textsecuregcm.util.Pair;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+
+public abstract class NetworkGauge implements Gauge<Long> {
+
+  protected Pair<Long, Long> getSentReceived() throws IOException {
+    File           proc          = new File("/proc/net/dev");
+    BufferedReader reader        = new BufferedReader(new FileReader(proc));
+    String         header        = reader.readLine();
+    String         header2       = reader.readLine();
+
+    long           bytesSent     = 0;
+    long           bytesReceived = 0;
+
+    String interfaceStats;
+
+      while ((interfaceStats = reader.readLine()) != null) {
+        String[] stats = interfaceStats.split("\\s+");
+
+        if (!stats[1].equals("lo:")) {
+          bytesReceived += Long.parseLong(stats[2]);
+          bytesSent     += Long.parseLong(stats[10]);
+        }
+      }
+
+    return new Pair<>(bytesSent, bytesReceived);
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/metrics/NetworkReceivedGauge.java

@@ -0,0 +1,36 @@
+package org.whispersystems.textsecuregcm.metrics;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.util.Pair;
+
+import java.io.IOException;
+
+public class NetworkReceivedGauge extends NetworkGauge {
+
+  private final Logger logger = LoggerFactory.getLogger(NetworkSentGauge.class);
+
+  private long lastTimestamp;
+  private long lastReceived;
+
+  @Override
+  public Long getValue() {
+    try {
+      long             timestamp       = System.currentTimeMillis();
+      Pair<Long, Long> sentAndReceived = getSentReceived();
+      long             result          = 0;
+
+      if (lastTimestamp != 0) {
+        result       = sentAndReceived.second() - lastReceived;
+        lastReceived = sentAndReceived.second();
+      }
+
+      lastTimestamp = timestamp;
+      return result;
+    } catch (IOException e) {
+      logger.warn("NetworkReceivedGauge", e);
+      return -1L;
+    }
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/metrics/NetworkSentGauge.java

@@ -0,0 +1,35 @@
+package org.whispersystems.textsecuregcm.metrics;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.util.Pair;
+
+import java.io.IOException;
+
+public class NetworkSentGauge extends NetworkGauge {
+
+  private final Logger logger = LoggerFactory.getLogger(NetworkSentGauge.class);
+
+  private long lastTimestamp;
+  private long lastSent;
+
+  @Override
+  public Long getValue() {
+    try {
+      long             timestamp       = System.currentTimeMillis();
+      Pair<Long, Long> sentAndReceived = getSentReceived();
+      long             result          = 0;
+
+      if (lastTimestamp != 0) {
+        result        = sentAndReceived.first() - lastSent;
+        lastSent      = sentAndReceived.first();
+      }
+
+      lastTimestamp = timestamp;
+      return result;
+    } catch (IOException e) {
+      logger.warn("NetworkSentGauge", e);
+      return -1L;
+    }
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/providers/MemcacheHealthCheck.java

@@ -16,8 +16,7 @@
  */
 package org.whispersystems.textsecuregcm.providers;
 
-import com.yammer.metrics.core.HealthCheck;
-import com.yammer.metrics.core.HealthCheck.Result;
+import com.codahale.metrics.health.HealthCheck;
 import net.spy.memcached.MemcachedClient;
 
 import java.security.SecureRandom;
@@ -27,7 +26,6 @@ public class MemcacheHealthCheck extends HealthCheck {
   private final MemcachedClient client;
 
   public MemcacheHealthCheck(MemcachedClient client) {
-    super("memcached");
     this.client = client;
   }
 
@@ -47,6 +45,8 @@ public class MemcacheHealthCheck extends HealthCheck {
       return Result.unhealthy("Fetch failed");
     }
 
+    this.client.delete("HEALTH" + random);
+
     return Result.healthy();
   }
 

src/main/java/org/whispersystems/textsecuregcm/providers/RedisHealthCheck.java

@@ -16,7 +16,7 @@
  */
 package org.whispersystems.textsecuregcm.providers;
 
-import com.yammer.metrics.core.HealthCheck;
+import com.codahale.metrics.health.HealthCheck;
 
 import redis.clients.jedis.Jedis;
 import redis.clients.jedis.JedisPool;
@@ -26,7 +26,6 @@ public class RedisHealthCheck extends HealthCheck {
   private final JedisPool clientPool;
 
   public RedisHealthCheck(JedisPool clientPool) {
-    super("redis");
     this.clientPool = clientPool;
   }
 

src/main/java/org/whispersystems/textsecuregcm/providers/TimeProvider.java

@@ -0,0 +1,7 @@
+package org.whispersystems.textsecuregcm.providers;
+
+public class TimeProvider {
+  public long getCurrentTimeMillis() {
+    return System.currentTimeMillis();
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/push/APNSender.java

@@ -1,116 +0,0 @@
-/**
- * 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.push;
-
-import com.google.common.base.Optional;
-import com.notnoop.apns.APNS;
-import com.notnoop.apns.ApnsService;
-import com.notnoop.exceptions.NetworkIOException;
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
-import org.bouncycastle.openssl.PEMReader;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.whispersystems.textsecuregcm.entities.CryptoEncodingException;
-import org.whispersystems.textsecuregcm.entities.EncryptedOutgoingMessage;
-import org.whispersystems.textsecuregcm.util.Util;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.security.KeyPair;
-import java.security.KeyStore;
-import java.security.KeyStoreException;
-import java.security.NoSuchAlgorithmException;
-import java.security.cert.Certificate;
-import java.security.cert.CertificateException;
-import java.security.cert.X509Certificate;
-import java.util.concurrent.TimeUnit;
-
-public class APNSender {
-
-  private final Meter  success = Metrics.newMeter(APNSender.class, "sent", "success", TimeUnit.MINUTES);
-  private final Meter  failure = Metrics.newMeter(APNSender.class, "sent", "failure", TimeUnit.MINUTES);
-  private final Logger logger  = LoggerFactory.getLogger(APNSender.class);
-
-  private static final String MESSAGE_BODY = "m";
-
-  private final Optional<ApnsService> apnService;
-
-  public APNSender(String apnCertificate, String apnKey)
-      throws CertificateException, NoSuchAlgorithmException, KeyStoreException, IOException
-  {
-    if (!Util.isEmpty(apnCertificate) && !Util.isEmpty(apnKey)) {
-      byte[] keyStore = initializeKeyStore(apnCertificate, apnKey);
-      this.apnService = Optional.of(APNS.newService()
-                                        .withCert(new ByteArrayInputStream(keyStore), "insecure")
-                                        .withSandboxDestination().build());
-    } else {
-      this.apnService = Optional.absent();
-    }
-  }
-
-  public void sendMessage(String registrationId, EncryptedOutgoingMessage message)
-      throws TransientPushFailureException, NotPushRegisteredException
-  {
-    try {
-      if (!apnService.isPresent()) {
-        failure.mark();
-        throw new TransientPushFailureException("APN access not configured!");
-      }
-
-      String payload = APNS.newPayload()
-                           .alertBody("Message!")
-                           .customField(MESSAGE_BODY, message.serialize())
-                           .build();
-
-      logger.debug("APN Payload: " + payload);
-
-      apnService.get().push(registrationId, payload);
-      success.mark();
-    } catch (NetworkIOException nioe) {
-      logger.warn("Network Error", nioe);
-      failure.mark();
-      throw new TransientPushFailureException(nioe);
-    } catch (CryptoEncodingException e) {
-      throw new NotPushRegisteredException(e);
-    }
-  }
-
-  private static byte[] initializeKeyStore(String pemCertificate, String pemKey)
-      throws KeyStoreException, CertificateException, NoSuchAlgorithmException, IOException
-  {
-    PEMReader       reader           = new PEMReader(new InputStreamReader(new ByteArrayInputStream(pemCertificate.getBytes())));
-    X509Certificate certificate      = (X509Certificate) reader.readObject();
-    Certificate[]   certificateChain = {certificate};
-
-    reader            = new PEMReader(new InputStreamReader(new ByteArrayInputStream(pemKey.getBytes())));
-    KeyPair keyPair = (KeyPair) reader.readObject();
-
-    KeyStore keyStore = KeyStore.getInstance("pkcs12");
-    keyStore.load(null);
-    keyStore.setEntry("apn",
-                      new KeyStore.PrivateKeyEntry(keyPair.getPrivate(), certificateChain),
-                      new KeyStore.PasswordProtection("insecure".toCharArray()));
-
-    ByteArrayOutputStream baos = new ByteArrayOutputStream();
-    keyStore.store(baos, "insecure".toCharArray());
-
-    return baos.toByteArray();
-  }
-}

src/main/java/org/whispersystems/textsecuregcm/push/FeedbackHandler.java

@@ -0,0 +1,99 @@
+package org.whispersystems.textsecuregcm.push;
+
+import com.google.common.base.Optional;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.entities.UnregisteredEvent;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.storage.Device;
+
+import java.io.IOException;
+import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+
+import io.dropwizard.lifecycle.Managed;
+
+public class FeedbackHandler implements Managed, Runnable {
+
+  private final Logger logger = LoggerFactory.getLogger(PushServiceClient.class);
+
+  private final PushServiceClient client;
+  private final AccountsManager   accountsManager;
+
+  private ScheduledExecutorService executor;
+
+  public FeedbackHandler(PushServiceClient client, AccountsManager accountsManager) {
+    this.client          = client;
+    this.accountsManager = accountsManager;
+  }
+
+  @Override
+  public void start() throws Exception {
+    this.executor = Executors.newSingleThreadScheduledExecutor();
+    this.executor.scheduleAtFixedRate(this, 0, 10, TimeUnit.MINUTES);
+  }
+
+  @Override
+  public void stop() throws Exception {
+    if (this.executor != null) {
+      this.executor.shutdown();
+    }
+  }
+
+  @Override
+  public void run() {
+    try {
+      List<UnregisteredEvent> gcmFeedback = client.getGcmFeedback();
+      List<UnregisteredEvent> apnFeedback = client.getApnFeedback();
+
+      for (UnregisteredEvent gcmEvent : gcmFeedback) {
+        handleGcmUnregistered(gcmEvent);
+      }
+
+      for (UnregisteredEvent apnEvent : apnFeedback) {
+        handleApnUnregistered(apnEvent);
+      }
+    } catch (IOException e) {
+      logger.warn("Error retrieving feedback: ", e);
+    }
+  }
+
+  private void handleGcmUnregistered(UnregisteredEvent event) {
+    logger.warn("Got GCM Unregistered: " + event.getNumber() + "," + event.getDeviceId());
+
+    Optional<Account> account = accountsManager.get(event.getNumber());
+
+    if (account.isPresent()) {
+      Optional<Device> device = account.get().getDevice(event.getDeviceId());
+
+      if (device.isPresent()) {
+        if (event.getRegistrationId().equals(device.get().getGcmId())) {
+          logger.warn("GCM Unregister GCM ID matches!");
+          device.get().setGcmId(null);
+          accountsManager.update(account.get());
+        }
+      }
+    }
+  }
+
+  private void handleApnUnregistered(UnregisteredEvent event) {
+    logger.warn("Got APN Unregistered: " + event.getNumber() + "," + event.getDeviceId());
+
+    Optional<Account> account = accountsManager.get(event.getNumber());
+
+    if (account.isPresent()) {
+      Optional<Device> device = account.get().getDevice(event.getDeviceId());
+
+      if (device.isPresent()) {
+        if (event.getRegistrationId().equals(device.get().getApnId())) {
+          logger.warn("APN Unregister APN ID matches!");
+          device.get().setApnId(null);
+          accountsManager.update(account.get());
+        }
+      }
+    }
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/push/GCMSender.java

@@ -1,69 +0,0 @@
-/**
- * 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.push;
-
-import com.google.android.gcm.server.Constants;
-import com.google.android.gcm.server.Message;
-import com.google.android.gcm.server.Result;
-import com.google.android.gcm.server.Sender;
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
-import org.whispersystems.textsecuregcm.entities.CryptoEncodingException;
-import org.whispersystems.textsecuregcm.entities.EncryptedOutgoingMessage;
-
-import java.io.IOException;
-import java.util.concurrent.TimeUnit;
-
-public class GCMSender {
-
-  private final Meter success = Metrics.newMeter(GCMSender.class, "sent", "success", TimeUnit.MINUTES);
-  private final Meter failure = Metrics.newMeter(GCMSender.class, "sent", "failure", TimeUnit.MINUTES);
-
-  private final Sender sender;
-
-  public GCMSender(String apiKey) {
-    this.sender = new Sender(apiKey);
-  }
-
-  public String sendMessage(String gcmRegistrationId, EncryptedOutgoingMessage outgoingMessage)
-      throws NotPushRegisteredException, TransientPushFailureException
-  {
-    try {
-      Message gcmMessage = new Message.Builder().addData("type", "message")
-                                                .addData("message", outgoingMessage.serialize())
-                                                .build();
-
-      Result  result = sender.send(gcmMessage, gcmRegistrationId, 5);
-
-      if (result.getMessageId() != null) {
-        success.mark();
-        return result.getCanonicalRegistrationId();
-      } else {
-        failure.mark();
-        if (result.getErrorCodeName().equals(Constants.ERROR_NOT_REGISTERED)) {
-          throw new NotPushRegisteredException("Device no longer registered with GCM.");
-        } else {
-          throw new TransientPushFailureException("GCM Failed: " + result.getErrorCodeName());
-        }
-      }
-    } catch (IOException e) {
-      throw new TransientPushFailureException(e);
-    } catch (CryptoEncodingException e) {
-      throw new NotPushRegisteredException(e);
-    }
-  }
-}

src/main/java/org/whispersystems/textsecuregcm/push/PushSender.java

@@ -18,92 +18,84 @@ package org.whispersystems.textsecuregcm.push;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.whispersystems.textsecuregcm.configuration.ApnConfiguration;
-import org.whispersystems.textsecuregcm.configuration.GcmConfiguration;
+import org.whispersystems.textsecuregcm.entities.ApnMessage;
 import org.whispersystems.textsecuregcm.entities.CryptoEncodingException;
 import org.whispersystems.textsecuregcm.entities.EncryptedOutgoingMessage;
-import org.whispersystems.textsecuregcm.entities.MessageProtos;
+import org.whispersystems.textsecuregcm.entities.GcmMessage;
+import org.whispersystems.textsecuregcm.entities.PendingMessage;
 import org.whispersystems.textsecuregcm.storage.Account;
-import org.whispersystems.textsecuregcm.storage.AccountsManager;
 import org.whispersystems.textsecuregcm.storage.Device;
-import org.whispersystems.textsecuregcm.storage.StoredMessageManager;
 
-import java.io.IOException;
-import java.security.KeyStoreException;
-import java.security.NoSuchAlgorithmException;
-import java.security.cert.CertificateException;
+import static org.whispersystems.textsecuregcm.entities.MessageProtos.OutgoingMessageSignal;
 
 public class PushSender {
 
   private final Logger logger = LoggerFactory.getLogger(PushSender.class);
 
-  private final AccountsManager      accounts;
-  private final GCMSender            gcmSender;
-  private final APNSender            apnSender;
-  private final StoredMessageManager storedMessageManager;
+  private static final String APN_PAYLOAD = "{\"aps\":{\"sound\":\"default\",\"alert\":{\"loc-key\":\"APN_Message\"},\"content-available\":1,\"category\":\"Signal_Message\"}}";
 
-  public PushSender(GcmConfiguration gcmConfiguration,
-                    ApnConfiguration apnConfiguration,
-                    StoredMessageManager storedMessageManager,
-                    AccountsManager accounts)
-      throws CertificateException, NoSuchAlgorithmException, KeyStoreException, IOException
-  {
-    this.accounts             = accounts;
-    this.storedMessageManager = storedMessageManager;
-    this.gcmSender            = new GCMSender(gcmConfiguration.getApiKey());
-    this.apnSender            = new APNSender(apnConfiguration.getCertificate(), apnConfiguration.getKey());
+  private final PushServiceClient pushServiceClient;
+  private final WebsocketSender   webSocketSender;
+
+  public PushSender(PushServiceClient pushServiceClient, WebsocketSender websocketSender) {
+    this.pushServiceClient = pushServiceClient;
+    this.webSocketSender   = websocketSender;
   }
 
-  public void sendMessage(Account account, Device device, MessageProtos.OutgoingMessageSignal outgoingMessage)
-      throws NotPushRegisteredException, TransientPushFailureException
-  {
-    String                   signalingKey = device.getSignalingKey();
-    EncryptedOutgoingMessage message      = new EncryptedOutgoingMessage(outgoingMessage, signalingKey);
-
-    if      (device.getGcmId() != null)   sendGcmMessage(account, device, message);
-    else if (device.getApnId() != null)   sendApnMessage(account, device, message);
-    else if (device.getFetchesMessages()) storeFetchedMessage(account, device, message);
-    else                                  throw new NotPushRegisteredException("No delivery possible!");
-  }
-
-  private void sendGcmMessage(Account account, Device device, EncryptedOutgoingMessage outgoingMessage)
+  public void sendMessage(Account account, Device device, OutgoingMessageSignal message)
       throws NotPushRegisteredException, TransientPushFailureException
   {
     try {
-      String canonicalId = gcmSender.sendMessage(device.getGcmId(), outgoingMessage);
+      boolean                  isReceipt        = message.getType() == OutgoingMessageSignal.Type.RECEIPT_VALUE;
+      String                   signalingKey     = device.getSignalingKey();
+      EncryptedOutgoingMessage encryptedMessage = new EncryptedOutgoingMessage(message, signalingKey);
+      PendingMessage           pendingMessage   = new PendingMessage(message.getSource(),
+                                                                     message.getTimestamp(),
+                                                                     isReceipt,
+                                                                     encryptedMessage.serialize());
 
-      if (canonicalId != null) {
-        device.setGcmId(canonicalId);
-        accounts.update(account);
-      }
-
-    } catch (NotPushRegisteredException e) {
-      logger.debug("No Such User", e);
-      device.setGcmId(null);
-      accounts.update(account);
-      throw new NotPushRegisteredException(e);
-    }
-  }
-
-  private void sendApnMessage(Account account, Device device, EncryptedOutgoingMessage outgoingMessage)
-      throws TransientPushFailureException, NotPushRegisteredException
-  {
-    try {
-      apnSender.sendMessage(device.getApnId(), outgoingMessage);
-    } catch (NotPushRegisteredException e) {
-      device.setApnId(null);
-      accounts.update(account);
-      throw new NotPushRegisteredException(e);
-    }
-  }
-
-  private void storeFetchedMessage(Account account, Device device, EncryptedOutgoingMessage outgoingMessage)
-      throws NotPushRegisteredException
-  {
-    try {
-      storedMessageManager.storeMessage(account, device, outgoingMessage);
+      sendMessage(account, device, pendingMessage);
     } catch (CryptoEncodingException e) {
       throw new NotPushRegisteredException(e);
     }
   }
+
+  public void sendMessage(Account account, Device device, PendingMessage pendingMessage)
+      throws NotPushRegisteredException, TransientPushFailureException
+  {
+    if      (device.getGcmId() != null)   sendGcmMessage(account, device, pendingMessage);
+    else if (device.getApnId() != null)   sendApnMessage(account, device, pendingMessage);
+    else if (device.getFetchesMessages()) sendWebSocketMessage(account, device, pendingMessage);
+    else                                  throw new NotPushRegisteredException("No delivery possible!");
+  }
+
+  private void sendGcmMessage(Account account, Device device, PendingMessage pendingMessage)
+      throws TransientPushFailureException
+  {
+    String     number         = account.getNumber();
+    long       deviceId       = device.getId();
+    String     registrationId = device.getGcmId();
+    GcmMessage gcmMessage     = new GcmMessage(registrationId, number, (int)deviceId,
+                                               pendingMessage.getEncryptedOutgoingMessage(),
+                                               pendingMessage.isReceipt()                              );
+
+    pushServiceClient.send(gcmMessage);
+  }
+
+  private void sendApnMessage(Account account, Device device, PendingMessage outgoingMessage)
+      throws TransientPushFailureException
+  {
+    boolean online = webSocketSender.sendMessage(account, device, outgoingMessage, true);
+
+    if (!online && !outgoingMessage.isReceipt()) {
+      ApnMessage apnMessage = new ApnMessage(device.getApnId(), account.getNumber(),
+                                             (int)device.getId(), APN_PAYLOAD);
+      pushServiceClient.send(apnMessage);
+    }
+  }
+
+  private void sendWebSocketMessage(Account account, Device device, PendingMessage outgoingMessage)
+  {
+    webSocketSender.sendMessage(account, device, outgoingMessage, false);
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/push/PushServiceClient.java

@@ -0,0 +1,91 @@
+package org.whispersystems.textsecuregcm.push;
+
+import com.sun.jersey.api.client.Client;
+import com.sun.jersey.api.client.ClientHandlerException;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.UniformInterfaceException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.configuration.PushConfiguration;
+import org.whispersystems.textsecuregcm.entities.ApnMessage;
+import org.whispersystems.textsecuregcm.entities.GcmMessage;
+import org.whispersystems.textsecuregcm.entities.UnregisteredEvent;
+import org.whispersystems.textsecuregcm.entities.UnregisteredEventList;
+import org.whispersystems.textsecuregcm.util.Base64;
+
+import javax.ws.rs.core.MediaType;
+import java.io.IOException;
+import java.util.List;
+
+public class PushServiceClient {
+
+  private static final String PUSH_GCM_PATH     = "/api/v1/push/gcm";
+  private static final String PUSH_APN_PATH     = "/api/v1/push/apn";
+
+  private static final String APN_FEEDBACK_PATH = "/api/v1/feedback/apn";
+  private static final String GCM_FEEDBACK_PATH = "/api/v1/feedback/gcm";
+
+  private final Logger logger = LoggerFactory.getLogger(PushServiceClient.class);
+
+  private final Client client;
+  private final String host;
+  private final int    port;
+  private final String authorization;
+
+  public PushServiceClient(Client client, PushConfiguration config) {
+    this.client        = client;
+    this.host          = config.getHost();
+    this.port          = config.getPort();
+    this.authorization = getAuthorizationHeader(config.getUsername(), config.getPassword());
+  }
+
+  public void send(GcmMessage message) throws TransientPushFailureException {
+    sendPush(PUSH_GCM_PATH, message);
+  }
+
+  public void send(ApnMessage message) throws TransientPushFailureException {
+    sendPush(PUSH_APN_PATH, message);
+  }
+
+  public List<UnregisteredEvent> getGcmFeedback() throws IOException {
+    return getFeedback(GCM_FEEDBACK_PATH);
+  }
+
+  public List<UnregisteredEvent> getApnFeedback() throws IOException {
+    return getFeedback(APN_FEEDBACK_PATH);
+  }
+
+  private void sendPush(String path, Object entity) throws TransientPushFailureException {
+    try {
+      ClientResponse response = client.resource("http://" + host + ":" + port + path)
+                                      .header("Authorization", authorization)
+                                      .entity(entity, MediaType.APPLICATION_JSON)
+                                      .put(ClientResponse.class);
+
+      if (response.getStatus() != 204 && response.getStatus() != 200) {
+        logger.warn("PushServer response: " + response.getStatus() + " " + response.getStatusInfo().getReasonPhrase());
+        throw new TransientPushFailureException("Bad response: " + response.getStatus());
+      }
+    } catch (UniformInterfaceException | ClientHandlerException e) {
+      logger.warn("Push error: ", e);
+      throw new TransientPushFailureException(e);
+    }
+  }
+
+  private List<UnregisteredEvent> getFeedback(String path) throws IOException {
+    try {
+      UnregisteredEventList unregisteredEvents = client.resource("http://" + host + ":" + port + path)
+                                                       .header("Authorization", authorization)
+                                                       .get(UnregisteredEventList.class);
+
+      return unregisteredEvents.getDevices();
+    } catch (UniformInterfaceException | ClientHandlerException e) {
+      logger.warn("Request error:", e);
+      throw new IOException(e);
+    }
+  }
+
+  private String getAuthorizationHeader(String username, String password) {
+    return "Basic " + Base64.encodeBytes((username + ":" + password).getBytes());
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/push/WebsocketSender.java

@@ -0,0 +1,84 @@
+/**
+ * Copyright (C) 2014 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.push;
+
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.entities.PendingMessage;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.textsecuregcm.storage.Device;
+import org.whispersystems.textsecuregcm.storage.PubSubManager;
+import org.whispersystems.textsecuregcm.storage.PubSubMessage;
+import org.whispersystems.textsecuregcm.storage.StoredMessages;
+import org.whispersystems.textsecuregcm.util.Constants;
+import org.whispersystems.textsecuregcm.util.SystemMapper;
+import org.whispersystems.textsecuregcm.websocket.WebsocketAddress;
+
+import static com.codahale.metrics.MetricRegistry.name;
+
+public class WebsocketSender {
+
+  private static final Logger logger = LoggerFactory.getLogger(WebsocketSender.class);
+
+  private final MetricRegistry metricRegistry = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
+
+  private final Meter websocketOnlineMeter  = metricRegistry.meter(name(getClass(), "ws_online"  ));
+  private final Meter websocketOfflineMeter = metricRegistry.meter(name(getClass(), "ws_offline" ));
+
+  private final Meter apnOnlineMeter        = metricRegistry.meter(name(getClass(), "apn_online" ));
+  private final Meter apnOfflineMeter       = metricRegistry.meter(name(getClass(), "apn_offline"));
+
+  private static final ObjectMapper mapper = SystemMapper.getMapper();
+
+  private final StoredMessages storedMessages;
+  private final PubSubManager  pubSubManager;
+
+  public WebsocketSender(StoredMessages storedMessages, PubSubManager pubSubManager) {
+    this.storedMessages = storedMessages;
+    this.pubSubManager  = pubSubManager;
+  }
+
+  public boolean sendMessage(Account account, Device device, PendingMessage pendingMessage, boolean apn) {
+    try {
+      String           serialized    = mapper.writeValueAsString(pendingMessage);
+      WebsocketAddress address       = new WebsocketAddress(account.getNumber(), device.getId());
+      PubSubMessage    pubSubMessage = new PubSubMessage(PubSubMessage.TYPE_DELIVER, serialized);
+
+      if (pubSubManager.publish(address, pubSubMessage)) {
+        if (apn) apnOnlineMeter.mark();
+        else     websocketOnlineMeter.mark();
+
+        return true;
+      } else {
+        if (apn) apnOfflineMeter.mark();
+        else     websocketOfflineMeter.mark();
+
+        storedMessages.insert(address, pendingMessage);
+        pubSubManager.publish(address, new PubSubMessage(PubSubMessage.TYPE_QUERY_DB, null));
+        return false;
+      }
+    } catch (JsonProcessingException e) {
+      logger.warn("WebsocketSender", "Unable to serialize json", e);
+      return false;
+    }
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/sms/NexmoSmsSender.java

@@ -16,11 +16,13 @@
  */
 package org.whispersystems.textsecuregcm.sms;
 
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.configuration.NexmoConfiguration;
+import org.whispersystems.textsecuregcm.util.Constants;
 
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -28,13 +30,15 @@ import java.io.InputStreamReader;
 import java.net.URL;
 import java.net.URLConnection;
 import java.net.URLEncoder;
-import java.util.concurrent.TimeUnit;
+
+import static com.codahale.metrics.MetricRegistry.name;
 
 public class NexmoSmsSender {
 
-  private final Meter  smsMeter = Metrics.newMeter(NexmoSmsSender.class, "sms", "delivered", TimeUnit.MINUTES);
-  private final Meter  voxMeter = Metrics.newMeter(NexmoSmsSender.class, "vox", "delivered", TimeUnit.MINUTES);
-  private final Logger logger   = LoggerFactory.getLogger(NexmoSmsSender.class);
+  private final MetricRegistry metricRegistry = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
+  private final Meter          smsMeter       = metricRegistry.meter(name(getClass(), "sms", "delivered"));
+  private final Meter          voxMeter       = metricRegistry.meter(name(getClass(), "vox", "delivered"));
+  private final Logger         logger         = LoggerFactory.getLogger(NexmoSmsSender.class);
 
   private static final String NEXMO_SMS_URL =
       "https://rest.nexmo.com/sms/json?api_key=%s&api_secret=%s&from=%s&to=%s&text=%s";

src/main/java/org/whispersystems/textsecuregcm/sms/TwilioSmsSender.java

@@ -16,22 +16,25 @@
  */
 package org.whispersystems.textsecuregcm.sms;
 
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
 import com.twilio.sdk.TwilioRestClient;
 import com.twilio.sdk.TwilioRestException;
 import com.twilio.sdk.resource.factory.CallFactory;
 import com.twilio.sdk.resource.factory.MessageFactory;
-import com.yammer.metrics.Metrics;
-import com.yammer.metrics.core.Meter;
 import org.apache.http.NameValuePair;
 import org.apache.http.message.BasicNameValuePair;
 import org.whispersystems.textsecuregcm.configuration.TwilioConfiguration;
+import org.whispersystems.textsecuregcm.util.Constants;
 
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
-import java.util.concurrent.TimeUnit;
+
+import static com.codahale.metrics.MetricRegistry.name;
 
 public class TwilioSmsSender {
 
@@ -40,8 +43,9 @@ public class TwilioSmsSender {
                                          "    <Say voice=\"woman\" language=\"en\">" + SmsSender.VOX_VERIFICATION_TEXT + "%s</Say>\n" +
                                          "</Response>";
 
-  private final Meter smsMeter = Metrics.newMeter(TwilioSmsSender.class, "sms", "delivered", TimeUnit.MINUTES);
-  private final Meter voxMeter = Metrics.newMeter(TwilioSmsSender.class, "vox", "delivered", TimeUnit.MINUTES);
+  private final MetricRegistry metricRegistry = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
+  private final Meter          smsMeter       = metricRegistry.meter(name(getClass(), "sms", "delivered"));
+  private final Meter          voxMeter       = metricRegistry.meter(name(getClass(), "vox", "delivered"));
 
   private final String accountId;
   private final String accountToken;

src/main/java/org/whispersystems/textsecuregcm/storage/Account.java

@@ -22,16 +22,12 @@ import com.fasterxml.jackson.annotation.JsonProperty;
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.base.Optional;
 
-import java.io.Serializable;
 import java.util.LinkedList;
 import java.util.List;
 
-public class Account implements Serializable {
+public class Account {
 
-  public static final int MEMCACHE_VERION = 2;
-
-  @JsonIgnore
-  private long id;
+  public static final int MEMCACHE_VERION = 5;
 
   @JsonProperty
   private String number;
@@ -42,16 +38,14 @@ public class Account implements Serializable {
   @JsonProperty
   private List<Device> devices = new LinkedList<>();
 
+  @JsonProperty
+  private String identityKey;
+
   @JsonIgnore
   private Optional<Device> authenticatedDevice;
 
   public Account() {}
 
-  public Account(String number, boolean supportsSms) {
-    this.number      = number;
-    this.supportsSms = supportsSms;
-  }
-
   @VisibleForTesting
   public Account(String number, boolean supportsSms, List<Device> devices) {
     this.number      = number;
@@ -59,14 +53,6 @@ public class Account implements Serializable {
     this.devices     = devices;
   }
 
-  public long getId() {
-    return id;
-  }
-
-  public void setId(long id) {
-    this.id = id;
-  }
-
   public Optional<Device> getAuthenticatedDevice() {
     return authenticatedDevice;
   }
@@ -142,4 +128,12 @@ public class Account implements Serializable {
   public Optional<String> getRelay() {
     return Optional.absent();
   }
+
+  public void setIdentityKey(String identityKey) {
+    this.identityKey = identityKey;
+  }
+
+  public String getIdentityKey() {
+    return identityKey;
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/storage/Accounts.java

@@ -33,6 +33,7 @@ import org.skife.jdbi.v2.sqlobject.SqlUpdate;
 import org.skife.jdbi.v2.sqlobject.Transaction;
 import org.skife.jdbi.v2.sqlobject.customizers.Mapper;
 import org.skife.jdbi.v2.tweak.ResultSetMapper;
+import org.whispersystems.textsecuregcm.util.SystemMapper;
 
 import java.io.IOException;
 import java.lang.annotation.Annotation;
@@ -51,12 +52,7 @@ public abstract class Accounts {
   private static final String NUMBER = "number";
   private static final String DATA   = "data";
 
-  private static final ObjectMapper mapper = new ObjectMapper();
-
-  static {
-    mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
-    mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
-  }
+  private static final ObjectMapper mapper = SystemMapper.getMapper();
 
   @SqlUpdate("INSERT INTO accounts (" + NUMBER + ", " + DATA + ") VALUES (:number, CAST(:data AS json))")
   @GetGeneratedKeys
@@ -89,6 +85,9 @@ public abstract class Accounts {
     return insertStep(account);
   }
 
+  @SqlUpdate("VACUUM accounts")
+  public abstract void vacuum();
+
   public static class AccountMapper implements ResultSetMapper<Account> {
     @Override
     public Account map(int i, ResultSet resultSet, StatementContext statementContext)
@@ -96,7 +95,7 @@ public abstract class Accounts {
     {
       try {
         Account account = mapper.readValue(resultSet.getString(DATA), Account.class);
-        account.setId(resultSet.getLong(ID));
+//        account.setId(resultSet.getLong(ID));
 
         return account;
       } catch (IOException e) {

src/main/java/org/whispersystems/textsecuregcm/storage/AccountsManager.java

@@ -17,19 +17,30 @@
 package org.whispersystems.textsecuregcm.storage;
 
 
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 import com.google.common.base.Optional;
 import net.spy.memcached.MemcachedClient;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.whispersystems.textsecuregcm.entities.ClientContact;
+import org.whispersystems.textsecuregcm.util.SystemMapper;
 import org.whispersystems.textsecuregcm.util.Util;
 
+import java.io.IOException;
 import java.util.Iterator;
 import java.util.List;
 
 public class AccountsManager {
 
+  private final Logger logger = LoggerFactory.getLogger(AccountsManager.class);
+
   private final Accounts         accounts;
   private final MemcachedClient  memcachedClient;
   private final DirectoryManager directory;
+  private final ObjectMapper     mapper;
 
   public AccountsManager(Accounts accounts,
                          DirectoryManager directory,
@@ -38,6 +49,7 @@ public class AccountsManager {
     this.accounts        = accounts;
     this.directory       = directory;
     this.memcachedClient = memcachedClient;
+    this.mapper          = SystemMapper.getMapper();
   }
 
   public long getCount() {
@@ -54,40 +66,35 @@ public class AccountsManager {
 
   public void create(Account account) {
     accounts.create(account);
-
-    if (memcachedClient != null) {
-      memcachedClient.set(getKey(account.getNumber()), 0, account);
-    }
-
+    memcacheSet(account.getNumber(), account);
     updateDirectory(account);
   }
 
   public void update(Account account) {
-    if (memcachedClient != null) {
-      memcachedClient.set(getKey(account.getNumber()), 0, account);
-    }
-
+    memcacheSet(account.getNumber(), account);
     accounts.update(account);
     updateDirectory(account);
   }
 
   public Optional<Account> get(String number) {
-    Account account = null;
+    Optional<Account> account = memcacheGet(number);
 
-    if (memcachedClient != null) {
-      account = (Account)memcachedClient.get(getKey(number));
-    }
+    if (!account.isPresent()) {
+      account = Optional.fromNullable(accounts.get(number));
 
-    if (account == null) {
-      account = accounts.get(number);
-
-      if (account != null && memcachedClient != null) {
-        memcachedClient.set(getKey(number), 0, account);
+      if (account.isPresent()) {
+        memcacheSet(number, account.get());
       }
     }
 
-    if (account != null) return Optional.of(account);
-    else                 return Optional.absent();
+    return account;
+  }
+
+  public boolean isRelayListed(String number) {
+    byte[]                  token   = Util.getContactToken(number);
+    Optional<ClientContact> contact = directory.get(token);
+
+    return contact.isPresent() && !Util.isEmpty(contact.get().getRelay());
   }
 
   private void updateDirectory(Account account) {
@@ -104,4 +111,30 @@ public class AccountsManager {
     return Account.class.getSimpleName() + Account.MEMCACHE_VERION + number;
   }
 
+  private void memcacheSet(String number, Account account) {
+    if (memcachedClient != null) {
+      try {
+        String json = mapper.writeValueAsString(account);
+        memcachedClient.set(getKey(number), 0, json);
+      } catch (JsonProcessingException e) {
+        throw new IllegalArgumentException(e);
+      }
+    }
+  }
+
+  private Optional<Account> memcacheGet(String number) {
+    if (memcachedClient == null) return Optional.absent();
+
+    try {
+      String json = (String)memcachedClient.get(getKey(number));
+
+      if (json != null) return Optional.of(mapper.readValue(json, Account.class));
+      else              return Optional.absent();
+
+    } catch (IOException e) {
+      logger.warn("AccountsManager", "Deserialization error", e);
+      return Optional.absent();
+    }
+  }
+
 }

src/main/java/org/whispersystems/textsecuregcm/storage/Device.java

@@ -19,11 +19,12 @@ package org.whispersystems.textsecuregcm.storage;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import org.whispersystems.textsecuregcm.auth.AuthenticationCredentials;
+import org.whispersystems.textsecuregcm.entities.SignedPreKey;
 import org.whispersystems.textsecuregcm.util.Util;
 
 import java.io.Serializable;
 
-public class Device implements Serializable {
+public class Device {
 
   public static final long MASTER_ID = 1;
 
@@ -51,11 +52,15 @@ public class Device implements Serializable {
   @JsonProperty
   private int registrationId;
 
+  @JsonProperty
+  private SignedPreKey signedPreKey;
+
   public Device() {}
 
   public Device(long id, String authToken, String salt,
                 String signalingKey, String gcmId, String apnId,
-                boolean fetchesMessages, int registrationId)
+                boolean fetchesMessages, int registrationId,
+                SignedPreKey signedPreKey)
   {
     this.id              = id;
     this.authToken       = authToken;
@@ -65,6 +70,7 @@ public class Device implements Serializable {
     this.apnId           = apnId;
     this.fetchesMessages = fetchesMessages;
     this.registrationId  = registrationId;
+    this.signedPreKey    = signedPreKey;
   }
 
   public String getApnId() {
@@ -131,4 +137,12 @@ public class Device implements Serializable {
   public void setRegistrationId(int registrationId) {
     this.registrationId = registrationId;
   }
+
+  public SignedPreKey getSignedPreKey() {
+    return signedPreKey;
+  }
+
+  public void setSignedPreKey(SignedPreKey signedPreKey) {
+    this.signedPreKey = signedPreKey;
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/storage/DirectoryManager.java

@@ -76,6 +76,11 @@ public class DirectoryManager {
     pipeline.hset(DIRECTORY_KEY, contact.getToken(), new Gson().toJson(tokenValue).getBytes());
   }
 
+  public PendingClientContact get(BatchOperationHandle handle, byte[] token) {
+    Pipeline pipeline = handle.pipeline;
+    return new PendingClientContact(token, pipeline.hget(DIRECTORY_KEY, token));
+  }
+
   public Optional<ClientContact> get(byte[] token) {
     Jedis jedis = redisPool.getResource();
 
@@ -162,4 +167,26 @@ public class DirectoryManager {
       this.supportsSms = supportsSms;
     }
   }
+
+  public static class PendingClientContact {
+    private final byte[]           token;
+    private final Response<byte[]> response;
+
+    PendingClientContact(byte[] token, Response<byte[]> response) {
+      this.token    = token;
+      this.response = response;
+    }
+
+    public Optional<ClientContact> get() {
+      byte[] result = response.get();
+
+      if (result == null) {
+        return Optional.absent();
+      }
+
+      TokenValue tokenValue = new Gson().fromJson(new String(result), TokenValue.class);
+      return Optional.of(new ClientContact(token, tokenValue.relay, tokenValue.supportsSms));
+    }
+
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/storage/KeyRecord.java

@@ -0,0 +1,46 @@
+package org.whispersystems.textsecuregcm.storage;
+
+public class KeyRecord {
+
+  private long    id;
+  private String  number;
+  private long    deviceId;
+  private long    keyId;
+  private String  publicKey;
+  private boolean lastResort;
+
+  public KeyRecord(long id, String number, long deviceId, long keyId,
+                   String publicKey, boolean lastResort)
+  {
+    this.id         = id;
+    this.number     = number;
+    this.deviceId   = deviceId;
+    this.keyId      = keyId;
+    this.publicKey  = publicKey;
+    this.lastResort = lastResort;
+  }
+
+  public long getId() {
+    return id;
+  }
+
+  public String getNumber() {
+    return number;
+  }
+
+  public long getDeviceId() {
+    return deviceId;
+  }
+
+  public long getKeyId() {
+    return keyId;
+  }
+
+  public String getPublicKey() {
+    return publicKey;
+  }
+
+  public boolean isLastResort() {
+    return lastResort;
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/storage/Keys.java

@@ -30,8 +30,7 @@ import org.skife.jdbi.v2.sqlobject.SqlUpdate;
 import org.skife.jdbi.v2.sqlobject.Transaction;
 import org.skife.jdbi.v2.sqlobject.customizers.Mapper;
 import org.skife.jdbi.v2.tweak.ResultSetMapper;
-import org.whispersystems.textsecuregcm.entities.PreKey;
-import org.whispersystems.textsecuregcm.entities.UnstructuredPreKeyList;
+import org.whispersystems.textsecuregcm.entities.PreKeyBase;
 
 import java.lang.annotation.Annotation;
 import java.lang.annotation.ElementType;
@@ -51,66 +50,71 @@ public abstract class Keys {
   @SqlUpdate("DELETE FROM keys WHERE id = :id")
   abstract void removeKey(@Bind("id") long id);
 
-  @SqlBatch("INSERT INTO keys (number, device_id, key_id, public_key, identity_key, last_resort) VALUES " +
-      "(:number, :device_id, :key_id, :public_key, :identity_key, :last_resort)")
-  abstract void append(@PreKeyBinder List<PreKey> preKeys);
-
-  @SqlUpdate("INSERT INTO keys (number, device_id, key_id, public_key, identity_key, last_resort) VALUES " +
-      "(:number, :device_id, :key_id, :public_key, :identity_key, :last_resort)")
-  abstract void append(@PreKeyBinder PreKey preKey);
+  @SqlBatch("INSERT INTO keys (number, device_id, key_id, public_key, last_resort) VALUES " +
+            "(:number, :device_id, :key_id, :public_key, :last_resort)")
+  abstract void append(@PreKeyBinder List<KeyRecord> preKeys);
 
   @SqlQuery("SELECT * FROM keys WHERE number = :number AND device_id = :device_id ORDER BY key_id ASC FOR UPDATE")
   @Mapper(PreKeyMapper.class)
-  abstract PreKey retrieveFirst(@Bind("number") String number, @Bind("device_id") long deviceId);
+  abstract KeyRecord retrieveFirst(@Bind("number") String number, @Bind("device_id") long deviceId);
 
   @SqlQuery("SELECT DISTINCT ON (number, device_id) * FROM keys WHERE number = :number ORDER BY number, device_id, key_id ASC")
   @Mapper(PreKeyMapper.class)
-  abstract List<PreKey> retrieveFirst(@Bind("number") String number);
+  abstract List<KeyRecord> retrieveFirst(@Bind("number") String number);
+
+  @SqlQuery("SELECT COUNT(*) FROM keys WHERE number = :number AND device_id = :device_id")
+  public abstract int getCount(@Bind("number") String number, @Bind("device_id") long deviceId);
 
   @Transaction(TransactionIsolationLevel.SERIALIZABLE)
-  public void store(String number, long deviceId, List<PreKey> keys, PreKey lastResortKey) {
-    for (PreKey key : keys) {
-      key.setNumber(number);
-      key.setDeviceId(deviceId);
+  public void store(String number, long deviceId, List<? extends PreKeyBase> keys, PreKeyBase lastResortKey) {
+    List<KeyRecord> records = new LinkedList<>();
+
+    for (PreKeyBase key : keys) {
+      records.add(new KeyRecord(0, number, deviceId, key.getKeyId(), key.getPublicKey(), false));
     }
 
-    lastResortKey.setNumber(number);
-    lastResortKey.setDeviceId(deviceId);
-    lastResortKey.setLastResort(true);
+    records.add(new KeyRecord(0, number, deviceId, lastResortKey.getKeyId(),
+                              lastResortKey.getPublicKey(), true));
 
     removeKeys(number, deviceId);
-    append(keys);
-    append(lastResortKey);
+    append(records);
   }
 
   @Transaction(TransactionIsolationLevel.SERIALIZABLE)
-  public Optional<UnstructuredPreKeyList> get(String number, long deviceId) {
-    PreKey preKey = retrieveFirst(number, deviceId);
+  public Optional<List<KeyRecord>> get(String number, long deviceId) {
+    final KeyRecord record = retrieveFirst(number, deviceId);
 
-    if (preKey != null && !preKey.isLastResort()) {
-      removeKey(preKey.getId());
+    if (record != null && !record.isLastResort()) {
+      removeKey(record.getId());
+    } else if (record == null) {
+      return Optional.absent();
     }
 
-    if (preKey != null) return Optional.of(new UnstructuredPreKeyList(preKey));
-    else                return Optional.absent();
+    List<KeyRecord> results = new LinkedList<>();
+    results.add(record);
+
+    return Optional.of(results);
   }
 
   @Transaction(TransactionIsolationLevel.SERIALIZABLE)
-  public Optional<UnstructuredPreKeyList> get(String number) {
-    List<PreKey> preKeys = retrieveFirst(number);
+  public Optional<List<KeyRecord>> get(String number) {
+    List<KeyRecord> preKeys = retrieveFirst(number);
 
     if (preKeys != null) {
-      for (PreKey preKey : preKeys) {
+      for (KeyRecord preKey : preKeys) {
         if (!preKey.isLastResort()) {
           removeKey(preKey.getId());
         }
       }
     }
 
-    if (preKeys != null) return Optional.of(new UnstructuredPreKeyList(preKeys));
+    if (preKeys != null) return Optional.of(preKeys);
     else                 return Optional.absent();
   }
 
+  @SqlUpdate("VACUUM keys")
+  public abstract void vacuum();
+
   @BindingAnnotation(PreKeyBinder.PreKeyBinderFactory.class)
   @Retention(RetentionPolicy.RUNTIME)
   @Target({ElementType.PARAMETER})
@@ -118,17 +122,16 @@ public abstract class Keys {
     public static class PreKeyBinderFactory implements BinderFactory {
       @Override
       public Binder build(Annotation annotation) {
-        return new Binder<PreKeyBinder, PreKey>() {
+        return new Binder<PreKeyBinder, KeyRecord>() {
           @Override
-          public void bind(SQLStatement<?> sql, PreKeyBinder accountBinder, PreKey preKey)
+          public void bind(SQLStatement<?> sql, PreKeyBinder accountBinder, KeyRecord record)
           {
-            sql.bind("id", preKey.getId());
-            sql.bind("number", preKey.getNumber());
-            sql.bind("device_id", preKey.getDeviceId());
-            sql.bind("key_id", preKey.getKeyId());
-            sql.bind("public_key", preKey.getPublicKey());
-            sql.bind("identity_key", preKey.getIdentityKey());
-            sql.bind("last_resort", preKey.isLastResort() ? 1 : 0);
+            sql.bind("id", record.getId());
+            sql.bind("number", record.getNumber());
+            sql.bind("device_id", record.getDeviceId());
+            sql.bind("key_id", record.getKeyId());
+            sql.bind("public_key", record.getPublicKey());
+            sql.bind("last_resort", record.isLastResort() ? 1 : 0);
           }
         };
       }
@@ -136,15 +139,14 @@ public abstract class Keys {
   }
 
 
-  public static class PreKeyMapper implements ResultSetMapper<PreKey> {
+  public static class PreKeyMapper implements ResultSetMapper<KeyRecord> {
     @Override
-    public PreKey map(int i, ResultSet resultSet, StatementContext statementContext)
+    public KeyRecord map(int i, ResultSet resultSet, StatementContext statementContext)
         throws SQLException
     {
-      return new PreKey(resultSet.getLong("id"), resultSet.getString("number"), resultSet.getLong("device_id"),
-                         resultSet.getLong("key_id"), resultSet.getString("public_key"),
-                         resultSet.getString("identity_key"),
-                         resultSet.getInt("last_resort") == 1);
+      return new KeyRecord(resultSet.getLong("id"), resultSet.getString("number"),
+                           resultSet.getLong("device_id"), resultSet.getLong("key_id"),
+                           resultSet.getString("public_key"), resultSet.getInt("last_resort") == 1);
     }
   }
 

src/main/java/org/whispersystems/textsecuregcm/storage/PendingAccounts.java

@@ -31,4 +31,7 @@ public interface PendingAccounts {
 
   @SqlUpdate("DELETE FROM pending_accounts WHERE number = :number")
   void remove(@Bind("number") String number);
+
+  @SqlUpdate("VACUUM pending_accounts")
+  public void vacuum();
 }

src/main/java/org/whispersystems/textsecuregcm/storage/PendingAccountsManager.java

@@ -34,35 +34,46 @@ public class PendingAccountsManager {
   }
 
   public void store(String number, String code) {
-    if (memcachedClient != null) {
-      memcachedClient.set(MEMCACHE_PREFIX + number, 0, code);
-    }
-
+    memcacheSet(number, code);
     pendingAccounts.insert(number, code);
   }
 
   public void remove(String number) {
-    if (memcachedClient != null)
-      memcachedClient.delete(MEMCACHE_PREFIX + number);
+    memcacheDelete(number);
     pendingAccounts.remove(number);
   }
 
   public Optional<String> getCodeForNumber(String number) {
-    String code = null;
+    Optional<String> code = memcacheGet(number);
 
-    if (memcachedClient != null) {
-      code = (String)memcachedClient.get(MEMCACHE_PREFIX + number);
-    }
+    if (!code.isPresent()) {
+      code = Optional.fromNullable(pendingAccounts.getCodeForNumber(number));
 
-    if (code == null) {
-      code = pendingAccounts.getCodeForNumber(number);
-
-      if (code != null && memcachedClient != null) {
-        memcachedClient.set(MEMCACHE_PREFIX + number, 0, code);
+      if (code.isPresent()) {
+        memcacheSet(number, code.get());
       }
     }
 
-    if (code != null) return Optional.of(code);
-    else              return Optional.absent();
+    return code;
+  }
+
+  private void memcacheSet(String number, String code) {
+    if (memcachedClient != null) {
+      memcachedClient.set(MEMCACHE_PREFIX + number, 0, code);
+    }
+  }
+
+  private Optional<String> memcacheGet(String number) {
+    if (memcachedClient != null) {
+      return Optional.fromNullable((String)memcachedClient.get(MEMCACHE_PREFIX + number));
+    } else {
+      return Optional.absent();
+    }
+  }
+
+  private void memcacheDelete(String number) {
+    if (memcachedClient != null) {
+      memcachedClient.delete(MEMCACHE_PREFIX + number);
+    }
   }
 }

src/main/java/org/whispersystems/textsecuregcm/storage/PendingDevicesManager.java

@@ -34,37 +34,47 @@ public class PendingDevicesManager {
   }
 
   public void store(String number, String code) {
-    if (memcachedClient != null) {
-      memcachedClient.set(MEMCACHE_PREFIX + number, 0, code);
-    }
-
+    memcacheSet(number, code);
     pendingDevices.insert(number, code);
   }
 
   public void remove(String number) {
-    if (memcachedClient != null) {
-      memcachedClient.delete(MEMCACHE_PREFIX + number);
-    }
-
+    memcacheDelete(number);
     pendingDevices.remove(number);
   }
 
   public Optional<String> getCodeForNumber(String number) {
-    String code = null;
+    Optional<String> code = memcacheGet(number);
 
-    if (memcachedClient != null) {
-      code = (String)memcachedClient.get(MEMCACHE_PREFIX + number);
-    }
+    if (!code.isPresent()) {
+      code = Optional.fromNullable(pendingDevices.getCodeForNumber(number));
 
-    if (code == null) {
-      code = pendingDevices.getCodeForNumber(number);
-
-      if (code != null && memcachedClient != null) {
-        memcachedClient.set(MEMCACHE_PREFIX + number, 0, code);
+      if (code.isPresent()) {
+        memcacheSet(number, code.get());
       }
     }
 
-    if (code != null) return Optional.of(code);
-    else              return Optional.absent();
+    return code;
   }
+
+  private void memcacheSet(String number, String code) {
+    if (memcachedClient != null) {
+      memcachedClient.set(MEMCACHE_PREFIX + number, 0, code);
+    }
+  }
+
+  private Optional<String> memcacheGet(String number) {
+    if (memcachedClient != null) {
+      return Optional.fromNullable((String)memcachedClient.get(MEMCACHE_PREFIX + number));
+    } else {
+      return Optional.absent();
+    }
+  }
+
+  private void memcacheDelete(String number) {
+    if (memcachedClient != null) {
+      memcachedClient.delete(MEMCACHE_PREFIX + number);
+    }
+  }
+
 }

src/main/java/org/whispersystems/textsecuregcm/storage/PubSubManager.java

@@ -4,6 +4,7 @@ import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.util.SystemMapper;
 import org.whispersystems.textsecuregcm.websocket.InvalidWebsocketAddressException;
 import org.whispersystems.textsecuregcm.websocket.WebsocketAddress;
 
@@ -17,10 +18,12 @@ import redis.clients.jedis.JedisPubSub;
 
 public class PubSubManager {
 
-  private final Logger                                logger       = LoggerFactory.getLogger(PubSubManager.class);
-  private final ObjectMapper                          mapper       = new ObjectMapper();
-  private final SubscriptionListener                  baseListener = new SubscriptionListener();
-  private final Map<WebsocketAddress, PubSubListener> listeners    = new HashMap<>();
+  private static final String KEEPALIVE_CHANNEL = "KEEPALIVE";
+
+  private final Logger                      logger       = LoggerFactory.getLogger(PubSubManager.class);
+  private final ObjectMapper                mapper       = SystemMapper.getMapper();
+  private final SubscriptionListener        baseListener = new SubscriptionListener();
+  private final Map<String, PubSubListener> listeners    = new HashMap<>();
 
   private final JedisPool jedisPool;
   private boolean subscribed = false;
@@ -32,25 +35,29 @@ public class PubSubManager {
   }
 
   public synchronized void subscribe(WebsocketAddress address, PubSubListener listener) {
-    listeners.put(address, listener);
-    baseListener.subscribe(address.toString());
+    listeners.put(address.serialize(), listener);
+    baseListener.subscribe(address.serialize());
   }
 
   public synchronized void unsubscribe(WebsocketAddress address, PubSubListener listener) {
-    if (listeners.get(address) == listener) {
-      listeners.remove(address);
-      baseListener.unsubscribe(address.toString());
+    if (listeners.get(address.serialize()) == listener) {
+      listeners.remove(address.serialize());
+      baseListener.unsubscribe(address.serialize());
     }
   }
 
   public synchronized boolean publish(WebsocketAddress address, PubSubMessage message) {
+    return publish(address.serialize(), message);
+  }
+
+  private synchronized boolean publish(String channel, PubSubMessage message) {
     try {
       String serialized = mapper.writeValueAsString(message);
       Jedis  jedis      = null;
 
       try {
         jedis = jedisPool.getResource();
-        return jedis.publish(address.toString(), serialized) != 0;
+        return jedis.publish(channel, serialized) != 0;
       } finally {
         if (jedis != null)
           jedisPool.returnResource(jedis);
@@ -78,7 +85,7 @@ public class PubSubManager {
           Jedis jedis = null;
           try {
             jedis = jedisPool.getResource();
-            jedis.subscribe(baseListener, new WebsocketAddress(0, 0).toString());
+            jedis.subscribe(baseListener, KEEPALIVE_CHANNEL);
             logger.warn("**** Unsubscribed from holding channel!!! ******");
           } finally {
             if (jedis != null)
@@ -94,7 +101,7 @@ public class PubSubManager {
         for (;;) {
           try {
             Thread.sleep(20000);
-            publish(new WebsocketAddress(0, 0), new PubSubMessage(0, "foo"));
+            publish(KEEPALIVE_CHANNEL, new PubSubMessage(0, "foo"));
           } catch (InterruptedException e) {
             throw new AssertionError(e);
           }
@@ -108,18 +115,15 @@ public class PubSubManager {
     @Override
     public void onMessage(String channel, String message) {
       try {
-        WebsocketAddress address = new WebsocketAddress(channel);
         PubSubListener   listener;
 
         synchronized (PubSubManager.this) {
-          listener = listeners.get(address);
+          listener = listeners.get(channel);
         }
 
         if (listener != null) {
           listener.onPubSubMessage(mapper.readValue(message, PubSubMessage.class));
         }
-      } catch (InvalidWebsocketAddressException e) {
-        logger.warn("Address", e);
       } catch (IOException e) {
         logger.warn("IOE", e);
       }
@@ -132,16 +136,11 @@ public class PubSubManager {
 
     @Override
     public void onSubscribe(String channel, int count) {
-      try {
-        WebsocketAddress address = new WebsocketAddress(channel);
-        if (address.getAccountId() == 0 && address.getDeviceId() == 0) {
-          synchronized (PubSubManager.this) {
-            subscribed = true;
-            PubSubManager.this.notifyAll();
-          }
+      if (KEEPALIVE_CHANNEL.equals(channel)) {
+        synchronized (PubSubManager.this) {
+          subscribed = true;
+          PubSubManager.this.notifyAll();
         }
-      } catch (InvalidWebsocketAddressException e) {
-        logger.warn("Weird address", e);
       }
     }
 

src/main/java/org/whispersystems/textsecuregcm/storage/StoredMessageManager.java

@@ -1,66 +0,0 @@
-/**
- * Copyright (C) 2014 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.storage;
-
-import org.whispersystems.textsecuregcm.entities.CryptoEncodingException;
-import org.whispersystems.textsecuregcm.entities.EncryptedOutgoingMessage;
-import org.whispersystems.textsecuregcm.websocket.WebsocketAddress;
-
-import java.util.List;
-
-public class StoredMessageManager {
-
-  private final StoredMessages storedMessages;
-  private final PubSubManager  pubSubManager;
-
-  public StoredMessageManager(StoredMessages storedMessages, PubSubManager pubSubManager) {
-    this.storedMessages = storedMessages;
-    this.pubSubManager  = pubSubManager;
-  }
-
-  public void storeMessage(Account account, Device device, EncryptedOutgoingMessage outgoingMessage)
-      throws CryptoEncodingException
-  {
-    storeMessage(account, device, outgoingMessage.serialize());
-  }
-
-  public void storeMessages(Account account, Device device, List<String> serializedMessages) {
-    for (String serializedMessage : serializedMessages) {
-      storeMessage(account, device, serializedMessage);
-    }
-  }
-
-  private void storeMessage(Account account, Device device, String serializedMessage) {
-    if (device.getFetchesMessages()) {
-      WebsocketAddress address       = new WebsocketAddress(account.getId(), device.getId());
-      PubSubMessage    pubSubMessage = new PubSubMessage(PubSubMessage.TYPE_DELIVER, serializedMessage);
-
-      if (!pubSubManager.publish(address, pubSubMessage)) {
-        storedMessages.insert(account.getId(), device.getId(), serializedMessage);
-        pubSubManager.publish(address, new PubSubMessage(PubSubMessage.TYPE_QUERY_DB, null));
-      }
-
-      return;
-    }
-
-    storedMessages.insert(account.getId(), device.getId(), serializedMessage);
-  }
-
-  public List<String> getOutgoingMessages(Account account, Device device) {
-    return storedMessages.getMessagesForDevice(account.getId(), device.getId());
-  }
-}

src/main/java/org/whispersystems/textsecuregcm/storage/StoredMessages.java

@@ -16,21 +16,103 @@
  */
 package org.whispersystems.textsecuregcm.storage;
 
-import org.skife.jdbi.v2.sqlobject.Bind;
-import org.skife.jdbi.v2.sqlobject.SqlBatch;
-import org.skife.jdbi.v2.sqlobject.SqlQuery;
-import org.skife.jdbi.v2.sqlobject.SqlUpdate;
+import com.codahale.metrics.Histogram;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.SharedMetricRegistries;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.entities.PendingMessage;
+import org.whispersystems.textsecuregcm.util.Constants;
+import org.whispersystems.textsecuregcm.util.SystemMapper;
+import org.whispersystems.textsecuregcm.websocket.WebsocketAddress;
+
+import java.io.IOException;
+import java.util.LinkedList;
 import java.util.List;
 
-public interface StoredMessages {
+import static com.codahale.metrics.MetricRegistry.name;
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisPool;
 
-  @SqlUpdate("INSERT INTO messages (account_id, device_id, encrypted_message) VALUES (:account_id, :device_id, :encrypted_message)")
-  void insert(@Bind("account_id") long accountId, @Bind("device_id") long deviceId, @Bind("encrypted_message") String encryptedOutgoingMessage);
+public class StoredMessages {
 
-  @SqlBatch("INSERT INTO messages (account_id, device_id, encrypted_message) VALUES (:account_id, :device_id, :encrypted_message)")
-  void insert(@Bind("account_id") long accountId, @Bind("device_id") long deviceId, @Bind("encrypted_message") List<String> encryptedOutgoingMessages);
+  private static final Logger logger = LoggerFactory.getLogger(StoredMessages.class);
 
-  @SqlQuery("DELETE FROM messages WHERE account_id = :account_id AND device_id = :device_id RETURNING encrypted_message")
-  List<String> getMessagesForDevice(@Bind("account_id") long accountId, @Bind("device_id") long deviceId);
-}
+  private final MetricRegistry metricRegistry     = SharedMetricRegistries.getOrCreate(Constants.METRICS_NAME);
+  private final Histogram      queueSizeHistogram = metricRegistry.histogram(name(getClass(), "queue_size"));
+
+
+  private static final ObjectMapper mapper = SystemMapper.getMapper();
+  private static final String QUEUE_PREFIX = "msgs";
+
+  private final JedisPool jedisPool;
+
+  public StoredMessages(JedisPool jedisPool) {
+    this.jedisPool = jedisPool;
+  }
+
+  public void clear(WebsocketAddress address) {
+    Jedis jedis = null;
+
+    try {
+      jedis = jedisPool.getResource();
+      jedis.del(getKey(address));
+    } finally {
+      if (jedis != null)
+        jedisPool.returnResource(jedis);
+    }
+  }
+
+  public void insert(WebsocketAddress address, PendingMessage message) {
+    Jedis jedis = null;
+
+    try {
+      jedis = jedisPool.getResource();
+
+      String serializedMessage = mapper.writeValueAsString(message);
+      long   queueSize         = jedis.lpush(getKey(address), serializedMessage);
+      queueSizeHistogram.update(queueSize);
+
+      if (queueSize > 1000) {
+        jedis.ltrim(getKey(address), 0, 999);
+      }
+
+    } catch (JsonProcessingException e) {
+      logger.warn("StoredMessages", "Unable to store correctly", e);
+    } finally {
+      if (jedis != null)
+        jedisPool.returnResource(jedis);
+    }
+  }
+
+  public List<PendingMessage> getMessagesForDevice(WebsocketAddress address) {
+    List<PendingMessage> messages = new LinkedList<>();
+    Jedis                jedis    = null;
+
+    try {
+      jedis = jedisPool.getResource();
+      String message;
+
+      while ((message = jedis.rpop(getKey(address))) != null) {
+        try {
+          messages.add(mapper.readValue(message, PendingMessage.class));
+        } catch (IOException e) {
+          logger.warn("StoredMessages", "Not a valid PendingMessage", e);
+        }
+      }
+
+      return messages;
+    } finally {
+      if (jedis != null)
+        jedisPool.returnResource(jedis);
+    }
+  }
+
+  private String getKey(WebsocketAddress address) {
+    return QUEUE_PREFIX + ":" + address.serialize();
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/util/Base64.java

@@ -1241,7 +1241,7 @@ public class Base64
      * @since 1.4
      */
     public static byte[] decode( String s ) throws java.io.IOException {
-        return decode( s, NO_OPTIONS );
+        return decode( s, DONT_GUNZIP );
     }
 
     

src/main/java/org/whispersystems/textsecuregcm/util/CORSHeaderFilter.java

@@ -1,41 +0,0 @@
-/**
- * Copyright (C) 2014 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.util;
-
-import javax.servlet.Filter;
-import javax.servlet.FilterChain;
-import javax.servlet.FilterConfig;
-import javax.servlet.ServletException;
-import javax.servlet.ServletRequest;
-import javax.servlet.ServletResponse;
-import javax.servlet.http.HttpServletResponse;
-import java.io.IOException;
-
-public class CORSHeaderFilter implements Filter {
-  @Override
-  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
-    if (response instanceof HttpServletResponse) {
-      ((HttpServletResponse) response).addHeader("Access-Control-Allow-Origin", "*");
-      ((HttpServletResponse) response).addHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
-      ((HttpServletResponse) response).addHeader("Access-Control-Allow-Headers", "Authorization, Content-type");
-    }
-    chain.doFilter(request, response);
-  }
-
-  @Override public void init(FilterConfig filterConfig) throws ServletException { }
-  @Override public void destroy() { }
-}

src/main/java/org/whispersystems/textsecuregcm/util/Constants.java

@@ -0,0 +1,7 @@
+package org.whispersystems.textsecuregcm.util;
+
+public class Constants {
+
+  public static final String METRICS_NAME = "textsecure";
+
+}

src/main/java/org/whispersystems/textsecuregcm/util/SystemMapper.java

@@ -0,0 +1,20 @@
+package org.whispersystems.textsecuregcm.util;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+public class SystemMapper {
+
+  private static final ObjectMapper mapper = new ObjectMapper();
+
+  static {
+    mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
+    mapper.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
+  }
+
+  public static ObjectMapper getMapper() {
+    return mapper;
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/util/Util.java

@@ -83,4 +83,40 @@ public class Util {
     return result;
   }
 
+
+  public static byte[][] split(byte[] input, int firstLength, int secondLength) {
+    byte[][] parts = new byte[2][];
+
+    parts[0] = new byte[firstLength];
+    System.arraycopy(input, 0, parts[0], 0, firstLength);
+
+    parts[1] = new byte[secondLength];
+    System.arraycopy(input, firstLength, parts[1], 0, secondLength);
+
+    return parts;
+  }
+
+  public static byte[][] split(byte[] input, int firstLength, int secondLength, int thirdLength, int fourthLength) {
+    byte[][] parts = new byte[4][];
+
+    parts[0] = new byte[firstLength];
+    System.arraycopy(input, 0, parts[0], 0, firstLength);
+
+    parts[1] = new byte[secondLength];
+    System.arraycopy(input, firstLength, parts[1], 0, secondLength);
+
+    parts[2] = new byte[thirdLength];
+    System.arraycopy(input, firstLength + secondLength, parts[2], 0, thirdLength);
+
+    parts[3] = new byte[fourthLength];
+    System.arraycopy(input, firstLength + secondLength + thirdLength, parts[3], 0, fourthLength);
+
+    return parts;
+  }
+
+  public static void sleep(int i) {
+    try {
+      Thread.sleep(i);
+    } catch (InterruptedException ie) {}
+  }
 }

src/main/java/org/whispersystems/textsecuregcm/websocket/ConnectListener.java

@@ -0,0 +1,65 @@
+package org.whispersystems.textsecuregcm.websocket;
+
+import com.google.common.base.Optional;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.push.PushSender;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.storage.Device;
+import org.whispersystems.textsecuregcm.storage.PubSubManager;
+import org.whispersystems.textsecuregcm.storage.StoredMessages;
+import org.whispersystems.websocket.session.WebSocketSessionContext;
+import org.whispersystems.websocket.setup.WebSocketConnectListener;
+
+public class ConnectListener implements WebSocketConnectListener {
+
+  private static final Logger logger = LoggerFactory.getLogger(WebSocketConnection.class);
+
+  private final AccountsManager accountsManager;
+  private final PushSender      pushSender;
+  private final StoredMessages  storedMessages;
+  private final PubSubManager   pubSubManager;
+
+  public ConnectListener(AccountsManager accountsManager, PushSender pushSender,
+                         StoredMessages storedMessages, PubSubManager pubSubManager)
+  {
+    this.accountsManager = accountsManager;
+    this.pushSender      = pushSender;
+    this.storedMessages  = storedMessages;
+    this.pubSubManager   = pubSubManager;
+  }
+
+  @Override
+  public void onWebSocketConnect(WebSocketSessionContext context) {
+    Optional<Account> account = context.getAuthenticated(Account.class);
+
+    if (!account.isPresent()) {
+      logger.debug("WS Connection with no authentication...");
+      context.getClient().close(4001, "Authentication failed");
+      return;
+    }
+
+    Optional<Device> device = account.get().getAuthenticatedDevice();
+
+    if (!device.isPresent()) {
+      logger.debug("WS Connection with no authenticated device...");
+      context.getClient().close(4001, "Device authentication failed");
+      return;
+    }
+
+    final WebSocketConnection connection = new WebSocketConnection(accountsManager, pushSender,
+                                                                   storedMessages, pubSubManager,
+                                                                   account.get(), device.get(),
+                                                                   context.getClient());
+
+    connection.onConnected();
+
+    context.addListener(new WebSocketSessionContext.WebSocketEventListener() {
+      @Override
+      public void onWebSocketClose(WebSocketSessionContext context, int statusCode, String reason) {
+        connection.onConnectionLost();
+      }
+    });
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/websocket/WebSocketAccountAuthenticator.java

@@ -0,0 +1,43 @@
+package org.whispersystems.textsecuregcm.websocket;
+
+import com.google.common.base.Optional;
+import org.eclipse.jetty.websocket.api.UpgradeRequest;
+import org.whispersystems.textsecuregcm.auth.AccountAuthenticator;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.websocket.auth.AuthenticationException;
+import org.whispersystems.websocket.auth.WebSocketAuthenticator;
+
+import java.util.Map;
+
+import io.dropwizard.auth.basic.BasicCredentials;
+
+
+public class WebSocketAccountAuthenticator implements WebSocketAuthenticator<Account> {
+
+  private final AccountAuthenticator accountAuthenticator;
+
+  public WebSocketAccountAuthenticator(AccountAuthenticator accountAuthenticator) {
+    this.accountAuthenticator = accountAuthenticator;
+  }
+
+  @Override
+  public Optional<Account> authenticate(UpgradeRequest request) throws AuthenticationException {
+    try {
+      Map<String, String[]> parameters = request.getParameterMap();
+      String[]              usernames  = parameters.get("login");
+      String[]              passwords  = parameters.get("password");
+
+      if (usernames == null || usernames.length == 0 ||
+          passwords == null || passwords.length == 0)
+      {
+        return Optional.absent();
+      }
+
+      BasicCredentials credentials = new BasicCredentials(usernames[0], passwords[0]);
+      return accountAuthenticator.authenticate(credentials);
+    } catch (io.dropwizard.auth.AuthenticationException e) {
+      throw new AuthenticationException(e);
+    }
+  }
+
+}

src/main/java/org/whispersystems/textsecuregcm/websocket/WebSocketConnection.java

@@ -0,0 +1,160 @@
+package org.whispersystems.textsecuregcm.websocket;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.common.base.Optional;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.entities.PendingMessage;
+import org.whispersystems.textsecuregcm.push.NotPushRegisteredException;
+import org.whispersystems.textsecuregcm.push.PushSender;
+import org.whispersystems.textsecuregcm.push.TransientPushFailureException;
+import org.whispersystems.textsecuregcm.storage.Account;
+import org.whispersystems.textsecuregcm.storage.AccountsManager;
+import org.whispersystems.textsecuregcm.storage.Device;
+import org.whispersystems.textsecuregcm.storage.PubSubListener;
+import org.whispersystems.textsecuregcm.storage.PubSubManager;
+import org.whispersystems.textsecuregcm.storage.PubSubMessage;
+import org.whispersystems.textsecuregcm.storage.StoredMessages;
+import org.whispersystems.textsecuregcm.util.SystemMapper;
+import org.whispersystems.websocket.WebSocketClient;
+import org.whispersystems.websocket.messages.WebSocketResponseMessage;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.io.IOException;
+import java.util.List;
+
+import static org.whispersystems.textsecuregcm.entities.MessageProtos.OutgoingMessageSignal;
+
+public class WebSocketConnection implements PubSubListener {
+
+  private static final Logger       logger       = LoggerFactory.getLogger(WebSocketConnection.class);
+  private static final ObjectMapper objectMapper = SystemMapper.getMapper();
+
+  private final AccountsManager  accountsManager;
+  private final PushSender       pushSender;
+  private final StoredMessages   storedMessages;
+  private final PubSubManager    pubSubManager;
+
+  private final Account          account;
+  private final Device           device;
+  private final WebsocketAddress address;
+  private final WebSocketClient  client;
+
+  public WebSocketConnection(AccountsManager accountsManager,
+                             PushSender pushSender,
+                             StoredMessages storedMessages,
+                             PubSubManager pubSubManager,
+                             Account account,
+                             Device device,
+                             WebSocketClient client)
+  {
+    this.accountsManager = accountsManager;
+    this.pushSender      = pushSender;
+    this.storedMessages  = storedMessages;
+    this.pubSubManager   = pubSubManager;
+    this.account         = account;
+    this.device          = device;
+    this.client          = client;
+    this.address         = new WebsocketAddress(account.getNumber(), device.getId());
+  }
+
+  public void onConnected() {
+    pubSubManager.subscribe(address, this);
+    processStoredMessages();
+  }
+
+  public void onConnectionLost() {
+    pubSubManager.unsubscribe(address, this);
+  }
+
+  @Override
+  public void onPubSubMessage(PubSubMessage message) {
+    try {
+      switch (message.getType()) {
+        case PubSubMessage.TYPE_QUERY_DB:
+          processStoredMessages();
+          break;
+        case PubSubMessage.TYPE_DELIVER:
+          PendingMessage pendingMessage = objectMapper.readValue(message.getContents(),
+                                                                 PendingMessage.class);
+          sendMessage(pendingMessage);
+          break;
+        default:
+          logger.warn("Unknown pubsub message: " + message.getType());
+      }
+    } catch (IOException e) {
+      logger.warn("Error deserializing PendingMessage", e);
+    }
+  }
+
+  private void sendMessage(final PendingMessage message) {
+    String                                     content  = message.getEncryptedOutgoingMessage();
+    Optional<byte[]>                           body     = Optional.fromNullable(content.getBytes());
+    ListenableFuture<WebSocketResponseMessage> response = client.sendRequest("PUT", "/api/v1/message", body);
+
+    Futures.addCallback(response, new FutureCallback<WebSocketResponseMessage>() {
+      @Override
+      public void onSuccess(@Nullable WebSocketResponseMessage response) {
+        if (isSuccessResponse(response) && !message.isReceipt()) {
+          sendDeliveryReceiptFor(message);
+        } else if (!isSuccessResponse(response)) {
+          requeueMessage(message);
+        }
+      }
+
+      @Override
+      public void onFailure(@Nonnull Throwable throwable) {
+        requeueMessage(message);
+      }
+
+      private boolean isSuccessResponse(WebSocketResponseMessage response) {
+        return response != null && response.getStatus() >= 200 && response.getStatus() < 300;
+      }
+    });
+  }
+
+  private void requeueMessage(PendingMessage message) {
+    try {
+      pushSender.sendMessage(account, device, message);
+    } catch (NotPushRegisteredException | TransientPushFailureException e) {
+      logger.warn("requeueMessage", e);
+      storedMessages.insert(address, message);
+    }
+  }
+
+  private void sendDeliveryReceiptFor(PendingMessage message) {
+    try {
+      Optional<Account> source = accountsManager.get(message.getSender());
+
+      if (!source.isPresent()) {
+        logger.warn("Source account disappeared? (%s)", message.getSender());
+        return;
+      }
+
+      OutgoingMessageSignal.Builder receipt =
+          OutgoingMessageSignal.newBuilder()
+                               .setSource(account.getNumber())
+                               .setSourceDevice((int) device.getId())
+                               .setTimestamp(message.getMessageId())
+                               .setType(OutgoingMessageSignal.Type.RECEIPT_VALUE);
+
+      for (Device device : source.get().getDevices()) {
+        pushSender.sendMessage(source.get(), device, receipt.build());
+      }
+    } catch (NotPushRegisteredException | TransientPushFailureException e) {
+      logger.warn("sendDeliveryReceiptFor", "Delivery receipet", e);
+    }
+  }
+
+  private void processStoredMessages() {
+    List<PendingMessage> messages = storedMessages.getMessagesForDevice(address);
+
+    for (PendingMessage message : messages) {
+      sendMessage(message);
+    }
+  }
+}

src/main/java/org/whispersystems/textsecuregcm/websocket/WebsocketAddress.java

@@ -2,39 +2,20 @@ package org.whispersystems.textsecuregcm.websocket;
 
 public class WebsocketAddress {
 
-  private final long accountId;
-  private final long deviceId;
+  private final String number;
+  private final long   deviceId;
 
-  public WebsocketAddress(String serialized) throws InvalidWebsocketAddressException {
-    try {
-      String[] parts = serialized.split(":");
-
-      if (parts == null || parts.length != 2) {
-        throw new InvalidWebsocketAddressException(serialized);
-      }
-
-      this.accountId = Long.parseLong(parts[0]);
-      this.deviceId  = Long.parseLong(parts[1]);
-    } catch (NumberFormatException e) {
-      throw new InvalidWebsocketAddressException(e);
-    }
-  }
-
-  public WebsocketAddress(long accountId, long deviceId) {
-    this.accountId = accountId;
+  public WebsocketAddress(String number, long deviceId) {
+    this.number    = number;
     this.deviceId  = deviceId;
   }
 
-  public long getAccountId() {
-    return accountId;
-  }
-
-  public long getDeviceId() {
-    return deviceId;
+  public String serialize() {
+    return number + ":" + deviceId;
   }
 
   public String toString() {
-    return accountId + ":" + deviceId;
+    return serialize();
   }
 
   @Override
@@ -45,13 +26,13 @@ public class WebsocketAddress {
     WebsocketAddress that = (WebsocketAddress)other;
 
     return
-        this.accountId == that.accountId &&
+        this.number.equals(that.number) &&
         this.deviceId == that.deviceId;
   }
 
   @Override
   public int hashCode() {
-    return (int)accountId ^ (int)deviceId;
+    return number.hashCode() ^ (int)deviceId;
   }
 
 }

src/main/java/org/whispersystems/textsecuregcm/websocket/WebsocketMessage.java

@@ -1,18 +0,0 @@
-package org.whispersystems.textsecuregcm.websocket;
-
-import com.fasterxml.jackson.annotation.JsonProperty;
-
-public class WebsocketMessage {
-
-  @JsonProperty
-  private long id;
-
-  @JsonProperty
-  private String message;
-
-  public WebsocketMessage(long id, String message) {
-    this.id      = id;
-    this.message = message;
-  }
-
-}

src/main/java/org/whispersystems/textsecuregcm/workers/DirectoryCommand.java

@@ -16,13 +16,6 @@
  */
 package org.whispersystems.textsecuregcm.workers;
 
-import com.yammer.dropwizard.cli.ConfiguredCommand;
-import com.yammer.dropwizard.config.Bootstrap;
-import com.yammer.dropwizard.db.DatabaseConfiguration;
-import com.yammer.dropwizard.jdbi.ImmutableListContainerFactory;
-import com.yammer.dropwizard.jdbi.ImmutableSetContainerFactory;
-import com.yammer.dropwizard.jdbi.OptionalContainerFactory;
-import com.yammer.dropwizard.jdbi.args.OptionalArgumentFactory;
 import net.sourceforge.argparse4j.inf.Namespace;
 import net.spy.memcached.MemcachedClient;
 import org.skife.jdbi.v2.DBI;
@@ -36,6 +29,13 @@ import org.whispersystems.textsecuregcm.storage.Accounts;
 import org.whispersystems.textsecuregcm.storage.AccountsManager;
 import org.whispersystems.textsecuregcm.storage.DirectoryManager;
 
+import io.dropwizard.cli.ConfiguredCommand;
+import io.dropwizard.db.DataSourceFactory;
+import io.dropwizard.jdbi.ImmutableListContainerFactory;
+import io.dropwizard.jdbi.ImmutableSetContainerFactory;
+import io.dropwizard.jdbi.OptionalContainerFactory;
+import io.dropwizard.jdbi.args.OptionalArgumentFactory;
+import io.dropwizard.setup.Bootstrap;
 import redis.clients.jedis.JedisPool;
 
 public class DirectoryCommand extends ConfiguredCommand<WhisperServerConfiguration> {
@@ -53,8 +53,8 @@ public class DirectoryCommand extends ConfiguredCommand<WhisperServerConfigurati
       throws Exception
   {
     try {
-      DatabaseConfiguration dbConfig = config.getDatabaseConfiguration();
-      DBI                   dbi      = new DBI(dbConfig.getUrl(), dbConfig.getUser(), dbConfig.getPassword());
+      DataSourceFactory dbConfig = config.getDataSourceFactory();
+      DBI               dbi      = new DBI(dbConfig.getUrl(), dbConfig.getUser(), dbConfig.getPassword());
 
       dbi.registerArgumentFactory(new OptionalArgumentFactory(dbConfig.getDriverClass()));
       dbi.registerContainerFactory(new ImmutableListContainerFactory());

src/main/java/org/whispersystems/textsecuregcm/workers/DirectoryUpdater.java

@@ -27,12 +27,14 @@ import org.whispersystems.textsecuregcm.storage.AccountsManager;
 import org.whispersystems.textsecuregcm.storage.DirectoryManager;
 import org.whispersystems.textsecuregcm.storage.DirectoryManager.BatchOperationHandle;
 import org.whispersystems.textsecuregcm.util.Base64;
-import org.whispersystems.textsecuregcm.util.Hex;
 import org.whispersystems.textsecuregcm.util.Util;
 
 import java.util.Iterator;
+import java.util.LinkedList;
 import java.util.List;
 
+import static org.whispersystems.textsecuregcm.storage.DirectoryManager.PendingClientContact;
+
 public class DirectoryUpdater {
 
   private final Logger logger = LoggerFactory.getLogger(DirectoryUpdater.class);
@@ -82,54 +84,69 @@ public class DirectoryUpdater {
 
   public void updateFromPeers() {
     logger.info("Updating peer directories.");
-    List<FederatedClient> clients = federatedClientManager.getClients();
+
+    int                   contactsAdded   = 0;
+    int                   contactsRemoved = 0;
+    List<FederatedClient> clients         = federatedClientManager.getClients();
 
     for (FederatedClient client : clients) {
       logger.info("Updating directory from peer: " + client.getPeerName());
-//      BatchOperationHandle handle = directory.startBatchOperation();
 
-      try {
-        int userCount = client.getUserCount();
-        int retrieved = 0;
+      int userCount = client.getUserCount();
+      int retrieved = 0;
 
-        logger.info("Remote peer user count: " + userCount);
+      logger.info("Remote peer user count: " + userCount);
 
-        while (retrieved < userCount) {
-          logger.info("Retrieving remote tokens...");
-          List<ClientContact> clientContacts = client.getUserTokens(retrieved);
+      while (retrieved < userCount) {
+        logger.info("Retrieving remote tokens...");
+        List<ClientContact>        remoteContacts = client.getUserTokens(retrieved);
+        List<PendingClientContact> localContacts  = new LinkedList<>();
+        BatchOperationHandle       handle         = directory.startBatchOperation();
 
-          if (clientContacts == null) {
-            logger.info("Remote tokens empty, ending...");
-            break;
-          } else {
-            logger.info("Retrieved " + clientContacts.size() + " remote tokens...");
-          }
-
-          for (ClientContact clientContact : clientContacts) {
-            clientContact.setRelay(client.getPeerName());
-
-            Optional<ClientContact> existing = directory.get(clientContact.getToken());
-
-            if (!clientContact.isInactive() && (!existing.isPresent() || client.getPeerName().equals(existing.get().getRelay()))) {
-//              directory.add(handle, clientContact);
-              directory.add(clientContact);
-            } else {
-              if (existing.isPresent() && client.getPeerName().equals(existing.get().getRelay())) {
-                directory.remove(clientContact.getToken());
-              }
-            }
-          }
-
-          retrieved += clientContacts.size();
-          logger.info("Processed: " + retrieved + " remote tokens.");
+        if (remoteContacts == null) {
+          logger.info("Remote tokens empty, ending...");
+          break;
+        } else {
+          logger.info("Retrieved " + remoteContacts.size() + " remote tokens...");
         }
 
-        logger.info("Update from peer complete.");
-      } finally {
-//        directory.stopBatchOperation(handle);
+        for (ClientContact remoteContact : remoteContacts) {
+          localContacts.add(directory.get(handle, remoteContact.getToken()));
+        }
+
+        directory.stopBatchOperation(handle);
+
+        handle = directory.startBatchOperation();
+        Iterator<ClientContact>        remoteContactIterator = remoteContacts.iterator();
+        Iterator<PendingClientContact> localContactIterator  = localContacts.iterator();
+
+        while (remoteContactIterator.hasNext() && localContactIterator.hasNext()) {
+          ClientContact           remoteContact = remoteContactIterator.next();
+          Optional<ClientContact> localContact  = localContactIterator.next().get();
+
+          remoteContact.setRelay(client.getPeerName());
+
+          if (!remoteContact.isInactive() && (!localContact.isPresent() || client.getPeerName().equals(localContact.get().getRelay()))) {
+            contactsAdded++;
+            directory.add(handle, remoteContact);
+          } else {
+            if (localContact.isPresent() && client.getPeerName().equals(localContact.get().getRelay())) {
+              contactsRemoved++;
+              directory.remove(handle, remoteContact.getToken());
+            }
+          }
+        }
+
+        directory.stopBatchOperation(handle);
+
+        retrieved += remoteContacts.size();
+        logger.info("Processed: " + retrieved + " remote tokens.");
       }
+
+      logger.info("Update from peer complete.");
     }
 
     logger.info("Update from peer directories complete.");
+    logger.info(String.format("Added %d and removed %d remove contacts.", contactsAdded, contactsRemoved));
   }
 }

src/main/java/org/whispersystems/textsecuregcm/workers/VacuumCommand.java

@@ -0,0 +1,59 @@
+package org.whispersystems.textsecuregcm.workers;
+
+import net.sourceforge.argparse4j.inf.Namespace;
+import org.skife.jdbi.v2.DBI;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.whispersystems.textsecuregcm.WhisperServerConfiguration;
+import org.whispersystems.textsecuregcm.storage.Accounts;
+import org.whispersystems.textsecuregcm.storage.Keys;
+import org.whispersystems.textsecuregcm.storage.PendingAccounts;
+
+import io.dropwizard.cli.ConfiguredCommand;
+import io.dropwizard.db.DataSourceFactory;
+import io.dropwizard.jdbi.ImmutableListContainerFactory;
+import io.dropwizard.jdbi.ImmutableSetContainerFactory;
+import io.dropwizard.jdbi.OptionalContainerFactory;
+import io.dropwizard.jdbi.args.OptionalArgumentFactory;
+import io.dropwizard.setup.Bootstrap;
+
+
+public class VacuumCommand extends ConfiguredCommand<WhisperServerConfiguration> {
+
+  private final Logger logger = LoggerFactory.getLogger(DirectoryCommand.class);
+
+  public VacuumCommand() {
+    super("vacuum", "Vacuum Postgres Tables");
+  }
+
+  @Override
+  protected void run(Bootstrap<WhisperServerConfiguration> bootstrap,
+                     Namespace namespace,
+                     WhisperServerConfiguration config)
+      throws Exception
+  {
+    DataSourceFactory dbConfig = config.getDataSourceFactory();
+    DBI               dbi      = new DBI(dbConfig.getUrl(), dbConfig.getUser(), dbConfig.getPassword());
+
+    dbi.registerArgumentFactory(new OptionalArgumentFactory(dbConfig.getDriverClass()));
+    dbi.registerContainerFactory(new ImmutableListContainerFactory());
+    dbi.registerContainerFactory(new ImmutableSetContainerFactory());
+    dbi.registerContainerFactory(new OptionalContainerFactory());
+
+    Accounts        accounts        = dbi.onDemand(Accounts.class       );
+    Keys            keys            = dbi.onDemand(Keys.class           );
+    PendingAccounts pendingAccounts = dbi.onDemand(PendingAccounts.class);
+
+    logger.warn("Vacuuming accounts...");
+    accounts.vacuum();
+
+    logger.warn("Vacuuming pending_accounts...");
+    pendingAccounts.vacuum();
+
+    logger.warn("Vacuuming keys...");
+    keys.vacuum();
+
+    Thread.sleep(3000);
+    System.exit(0);
+  }
+}

src/main/resources/migrations.xml

@@ -142,4 +142,33 @@
         </createIndex>
 
     </changeSet>
+
+    <changeSet id="3" author="moxie">
+        <sql>CREATE OR REPLACE FUNCTION "custom_json_object_set_key"(
+            "json"          json,
+            "key_to_set"    TEXT,
+            "value_to_set"  anyelement
+            )
+            RETURNS json
+            LANGUAGE sql
+            IMMUTABLE
+            STRICT
+            AS $function$
+            SELECT COALESCE(
+            (SELECT ('{' || string_agg(to_json("key") || ':' || "value", ',') || '}')
+            FROM (SELECT *
+            FROM json_each("json")
+            WHERE "key" &lt;&gt; "key_to_set"
+            UNION ALL
+            SELECT "key_to_set", to_json("value_to_set")) AS "fields"),
+            '{}'
+            )::json
+            $function$;</sql>
+        <sql>UPDATE accounts SET data = custom_json_object_set_key(data, 'identityKey', k.identity_key) FROM keys k WHERE (data->>'identityKey')::text is null AND k.number = data->>'number' AND k.last_resort = 1;</sql>
+        <sql>UPDATE accounts SET data = custom_json_object_set_key(data, 'identityKey', k.identity_key) FROM keys k WHERE (data->>'identityKey')::text is null AND k.number = data->>'number';</sql>
+    </changeSet>
+
+    <changeSet id="4" author="moxie">
+        <dropColumn tableName="keys" columnName="identity_key"/>
+    </changeSet>
 </databaseChangeLog>

src/test/java/org/whispersystems/textsecuregcm/tests/controllers/AccountControllerTest.java

@@ -2,54 +2,71 @@ package org.whispersystems.textsecuregcm.tests.controllers;
 
 import com.google.common.base.Optional;
 import com.sun.jersey.api.client.ClientResponse;
-import com.yammer.dropwizard.testing.ResourceTest;
+import org.apache.commons.codec.DecoderException;
+import org.apache.commons.codec.binary.Hex;
+import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.whispersystems.textsecuregcm.controllers.AccountController;
 import org.whispersystems.textsecuregcm.entities.AccountAttributes;
 import org.whispersystems.textsecuregcm.limits.RateLimiter;
 import org.whispersystems.textsecuregcm.limits.RateLimiters;
+import org.whispersystems.textsecuregcm.providers.TimeProvider;
 import org.whispersystems.textsecuregcm.sms.SmsSender;
 import org.whispersystems.textsecuregcm.storage.Account;
 import org.whispersystems.textsecuregcm.storage.AccountsManager;
 import org.whispersystems.textsecuregcm.storage.PendingAccountsManager;
+import org.whispersystems.textsecuregcm.storage.StoredMessages;
 import org.whispersystems.textsecuregcm.tests.util.AuthHelper;
 
 import javax.ws.rs.core.MediaType;
 
+import io.dropwizard.testing.junit.ResourceTestRule;
 import static org.fest.assertions.api.Assertions.assertThat;
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.*;
 
-public class AccountControllerTest extends ResourceTest {
+public class AccountControllerTest {
 
   private static final String SENDER = "+14152222222";
 
-  private PendingAccountsManager pendingAccountsManager = mock(PendingAccountsManager.class);
-  private AccountsManager        accountsManager        = mock(AccountsManager.class       );
-  private RateLimiters           rateLimiters           = mock(RateLimiters.class          );
-  private RateLimiter            rateLimiter            = mock(RateLimiter.class           );
-  private SmsSender              smsSender              = mock(SmsSender.class             );
+  private        PendingAccountsManager pendingAccountsManager = mock(PendingAccountsManager.class);
+  private        AccountsManager        accountsManager        = mock(AccountsManager.class       );
+  private        RateLimiters           rateLimiters           = mock(RateLimiters.class          );
+  private        RateLimiter            rateLimiter            = mock(RateLimiter.class           );
+  private        SmsSender              smsSender              = mock(SmsSender.class             );
+  private        StoredMessages         storedMessages         = mock(StoredMessages.class        );
+  private        TimeProvider           timeProvider           = mock(TimeProvider.class          );
+  private static byte[]                 authorizationKey       = decodeHex("3a078586eea8971155f5c1ebd73c8c923cbec1c3ed22a54722e4e88321dc749f");
 
-  @Override
-  protected void setUpResources() throws Exception {
-    addProvider(AuthHelper.getAuthenticator());
+  @Rule
+  public final ResourceTestRule resources = ResourceTestRule.builder()
+                                                            .addProvider(AuthHelper.getAuthenticator())
+                                                            .addResource(new AccountController(pendingAccountsManager,
+                                                                                               accountsManager,
+                                                                                               rateLimiters,
+                                                                                               smsSender,
+                                                                                               storedMessages,
+                                                                                               timeProvider,
+                                                                                               Optional.of(authorizationKey)))
+                                                            .build();
 
+
+  @Before
+  public void setup() throws Exception {
     when(rateLimiters.getSmsDestinationLimiter()).thenReturn(rateLimiter);
     when(rateLimiters.getVoiceDestinationLimiter()).thenReturn(rateLimiter);
     when(rateLimiters.getVerifyLimiter()).thenReturn(rateLimiter);
 
-    when(pendingAccountsManager.getCodeForNumber(SENDER)).thenReturn(Optional.of("1234"));
+    when(timeProvider.getCurrentTimeMillis()).thenReturn(System.currentTimeMillis());
 
-    addResource(new AccountController(pendingAccountsManager,
-                                      accountsManager,
-                                      rateLimiters,
-                                      smsSender));
+    when(pendingAccountsManager.getCodeForNumber(SENDER)).thenReturn(Optional.of("1234"));
   }
 
   @Test
   public void testSendCode() throws Exception {
     ClientResponse response =
-        client().resource(String.format("/v1/accounts/sms/code/%s", SENDER))
+        resources.client().resource(String.format("/v1/accounts/sms/code/%s", SENDER))
             .get(ClientResponse.class);
 
     assertThat(response.getStatus()).isEqualTo(200);
@@ -60,7 +77,7 @@ public class AccountControllerTest extends ResourceTest {
   @Test
   public void testVerifyCode() throws Exception {
     ClientResponse response =
-        client().resource(String.format("/v1/accounts/code/%s", "1234"))
+        resources.client().resource(String.format("/v1/accounts/code/%s", "1234"))
             .header("Authorization", AuthHelper.getAuthHeader(SENDER, "bar"))
             .entity(new AccountAttributes("keykeykeykey", false, false, 2222))
             .type(MediaType.APPLICATION_JSON_TYPE)
@@ -68,13 +85,13 @@ public class AccountControllerTest extends ResourceTest {
 
     assertThat(response.getStatus()).isEqualTo(204);
 
-    verify(accountsManager).create(isA(Account.class));
+    verify(accountsManager, times(1)).create(isA(Account.class));
   }
 
   @Test
   public void testVerifyBadCode() throws Exception {
     ClientResponse response =
-        client().resource(String.format("/v1/accounts/code/%s", "1111"))
+        resources.client().resource(String.format("/v1/accounts/code/%s", "1111"))
             .header("Authorization", AuthHelper.getAuthHeader(SENDER, "bar"))
             .entity(new AccountAttributes("keykeykeykey", false, false, 3333))
             .type(MediaType.APPLICATION_JSON_TYPE)
@@ -85,4 +102,84 @@ public class AccountControllerTest extends ResourceTest {
     verifyNoMoreInteractions(accountsManager);
   }
 
+  @Test
+  public void testVerifyToken() throws Exception {
+    when(timeProvider.getCurrentTimeMillis()).thenReturn(1415917053106L);
+
+    String token = SENDER + ":1415906573:af4f046107c21721224a";
+
+    ClientResponse response =
+        resources.client().resource(String.format("/v1/accounts/token/%s", token))
+        .header("Authorization", AuthHelper.getAuthHeader(SENDER, "bar"))
+        .entity(new AccountAttributes("keykeykeykey", false, false, 4444))
+        .type(MediaType.APPLICATION_JSON_TYPE)
+        .put(ClientResponse.class);
+
+    assertThat(response.getStatus()).isEqualTo(204);
+
+    verify(accountsManager, times(1)).create(isA(Account.class));
+  }
+
+  @Test
+  public void testVerifyBadToken() throws Exception {
+    when(timeProvider.getCurrentTimeMillis()).thenReturn(1415917053106L);
+
+    String token = SENDER + ":1415906574:af4f046107c21721224a";
+
+    ClientResponse response =
+        resources.client().resource(String.format("/v1/accounts/token/%s", token))
+                 .header("Authorization", AuthHelper.getAuthHeader(SENDER, "bar"))
+                 .entity(new AccountAttributes("keykeykeykey", false, false, 4444))
+                 .type(MediaType.APPLICATION_JSON_TYPE)
+                 .put(ClientResponse.class);
+
+    assertThat(response.getStatus()).isEqualTo(403);
+
+    verifyNoMoreInteractions(accountsManager);
+  }
+
+  @Test
+  public void testVerifyWrongToken() throws Exception {
+    when(timeProvider.getCurrentTimeMillis()).thenReturn(1415917053106L);
+
+    String token = SENDER + ":1415906573:af4f046107c21721224a";
+
+    ClientResponse response =
+        resources.client().resource(String.format("/v1/accounts/token/%s", token))
+                 .header("Authorization", AuthHelper.getAuthHeader("+14151111111", "bar"))
+                 .entity(new AccountAttributes("keykeykeykey", false, false, 4444))
+                 .type(MediaType.APPLICATION_JSON_TYPE)
+                 .put(ClientResponse.class);
+
+    assertThat(response.getStatus()).isEqualTo(403);
+
+    verifyNoMoreInteractions(accountsManager);
+  }
+
+  @Test
+  public void testVerifyExpiredToken() throws Exception {
+    when(timeProvider.getCurrentTimeMillis()).thenReturn(1416003757901L);
+
+    String token = SENDER + ":1415906573:af4f046107c21721224a";
+
+    ClientResponse response =
+        resources.client().resource(String.format("/v1/accounts/token/%s", token))
+                 .header("Authorization", AuthHelper.getAuthHeader(SENDER, "bar"))
+                 .entity(new AccountAttributes("keykeykeykey", false, false, 4444))
+                 .type(MediaType.APPLICATION_JSON_TYPE)
+                 .put(ClientResponse.class);
+
+    assertThat(response.getStatus()).isEqualTo(403);
+
+    verifyNoMoreInteractions(accountsManager);
+  }
+
+  private static byte[] decodeHex(String hex) {
+    try {
+      return Hex.decodeHex(hex.toCharArray());
+    } catch (DecoderException e) {
+      throw new AssertionError(e);
+    }
+  }
+
 }