Fix up build gradle.

src/org/thoughtcrime/securesms/crypto/UnidentifiedAccessUtil.java

@@ -6,6 +6,7 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.WorkerThread;
 
+import org.signal.libsignal.metadata.SignalProtos;
 import org.signal.libsignal.metadata.certificate.CertificateValidator;
 import org.signal.libsignal.metadata.certificate.InvalidCertificateException;
 import network.loki.messenger.BuildConfig;
@@ -20,6 +21,7 @@ import org.whispersystems.libsignal.ecc.ECPublicKey;
 import org.whispersystems.libsignal.util.guava.Optional;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccess;
 import org.whispersystems.signalservice.api.crypto.UnidentifiedAccessPair;
+import org.whispersystems.signalservice.api.push.SignalServiceAddress;
 
 import java.io.IOException;
 
@@ -48,7 +50,7 @@ public class UnidentifiedAccessUtil {
     try {
       byte[] theirUnidentifiedAccessKey       = getTargetUnidentifiedAccessKey(recipient);
       byte[] ourUnidentifiedAccessKey         = getSelfUnidentifiedAccessKey(context);
-      byte[] ourUnidentifiedAccessCertificate = TextSecurePreferences.getUnidentifiedAccessCertificate(context);
+      byte[] ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate(context);
 
       if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
         ourUnidentifiedAccessKey = Util.getSecretBytes(16);
@@ -83,7 +85,7 @@ public class UnidentifiedAccessUtil {
 
     try {
       byte[] ourUnidentifiedAccessKey         = getSelfUnidentifiedAccessKey(context);
-      byte[] ourUnidentifiedAccessCertificate = TextSecurePreferences.getUnidentifiedAccessCertificate(context);
+      byte[] ourUnidentifiedAccessCertificate = getUnidentifiedAccessCertificate(context);
 
       if (TextSecurePreferences.isUniversalUnidentifiedAccess(context)) {
         ourUnidentifiedAccessKey = Util.getSecretBytes(16);
@@ -125,4 +127,17 @@ public class UnidentifiedAccessUtil {
         throw new AssertionError("Unknown mode: " + recipient.getUnidentifiedAccessMode().getMode());
     }
   }
+
+  private static @Nullable byte[] getUnidentifiedAccessCertificate(Context context) {
+    String ourNumber = TextSecurePreferences.getLocalNumber(context);
+    if (ourNumber != null) {
+      SignalProtos.SenderCertificate certificate = SignalProtos.SenderCertificate.newBuilder()
+              .setSender(ourNumber)
+              .setSenderDevice(SignalServiceAddress.DEFAULT_DEVICE_ID)
+              .build();
+      return certificate.toByteArray();
+    }
+
+    return null;
+  }
 }

src/org/thoughtcrime/securesms/jobs/PushSendJob.java

@@ -280,26 +280,7 @@ public abstract class PushSendJob extends SendJob {
   }
 
   protected void rotateSenderCertificateIfNecessary() throws IOException {
-    try {
-      byte[] certificateBytes = TextSecurePreferences.getUnidentifiedAccessCertificate(context);
-
-      if (certificateBytes == null) {
-        throw new InvalidCertificateException("No certificate was present.");
-      }
-
-      SenderCertificate certificate = new SenderCertificate(certificateBytes);
-
-      if (System.currentTimeMillis() > (certificate.getExpiration() - CERTIFICATE_EXPIRATION_BUFFER)) {
-        throw new InvalidCertificateException("Certificate is expired, or close to it. Expires on: " + certificate.getExpiration() + ", currently: " + System.currentTimeMillis());
-      }
-
-      Log.d(TAG, "Certificate is valid.");
-    } catch (InvalidCertificateException e) {
-      Log.w(TAG, "Certificate was invalid at send time. Fetching a new one.", e);
-      RotateCertificateJob certificateJob = new RotateCertificateJob(context);
-      ApplicationContext.getInstance(context).injectDependencies(certificateJob);
-      certificateJob.onRun();
-    }
+    // Loki - We don't need verification on sender certificates
   }
 
   protected SignalServiceSyncMessage buildSelfSendSyncMessage(@NonNull Context context, @NonNull SignalServiceDataMessage message, Optional<UnidentifiedAccessPair> syncAccess) {