Deprecate usage of the signaling key.

src/org/thoughtcrime/securesms/DatabaseUpgradeActivity.java

@@ -95,6 +95,7 @@ public class DatabaseUpgradeActivity extends BaseActivity {
   public static final int WORKMANAGER_MIGRATION                = 408;
   public static final int COLOR_MIGRATION                      = 412;
   public static final int UNIDENTIFIED_DELIVERY                = 422;
+  public static final int SIGNALING_KEY_DEPRECATION            = 447;
 
   private static final SortedSet<Integer> UPGRADE_VERSIONS = new TreeSet<Integer>() {{
     add(NO_MORE_KEY_EXCHANGE_PREFIX_VERSION);
@@ -121,6 +122,7 @@ public class DatabaseUpgradeActivity extends BaseActivity {
     add(WORKMANAGER_MIGRATION);
     add(COLOR_MIGRATION);
     add(UNIDENTIFIED_DELIVERY);
+    add(SIGNALING_KEY_DEPRECATION);
   }};
 
   private MasterSecret masterSecret;
@@ -371,6 +373,13 @@ public class DatabaseUpgradeActivity extends BaseActivity {
                           .add(new RefreshAttributesJob(context));
       }
 
+      if (params[0] < SIGNALING_KEY_DEPRECATION) {
+        Log.i(TAG, "Scheduling a RefreshAttributesJob to remove the signaling key remotely.");
+        ApplicationContext.getInstance(context)
+                          .getJobManager()
+                          .add(new RefreshAttributesJob(context));
+      }
+
       return null;
     }
 

src/org/thoughtcrime/securesms/RegistrationActivity.java

@@ -713,9 +713,7 @@ public class RegistrationActivity extends BaseActionBarActivity implements Verif
     TextSecurePreferences.setLocalRegistrationId(RegistrationActivity.this, registrationId);
     SessionUtil.archiveAllSessions(RegistrationActivity.this);
 
-    String signalingKey = Util.getSecret(52);
+    accountManager.verifyAccountWithCode(code, null, registrationId, !registrationState.gcmToken.isPresent(), pin,
-
-    accountManager.verifyAccountWithCode(code, signalingKey, registrationId, !registrationState.gcmToken.isPresent(), pin,
                                          unidentifiedAccessKey, universalUnidentifiedAccess);
 
     IdentityKeyPair    identityKey  = IdentityKeyUtil.getIdentityKeyPair(RegistrationActivity.this);
@@ -741,7 +739,6 @@ public class RegistrationActivity extends BaseActionBarActivity implements Verif
     TextSecurePreferences.setPushRegistered(RegistrationActivity.this, true);
     TextSecurePreferences.setLocalNumber(RegistrationActivity.this, registrationState.e164number);
     TextSecurePreferences.setPushServerPassword(RegistrationActivity.this, registrationState.password);
-    TextSecurePreferences.setSignalingKey(RegistrationActivity.this, signalingKey);
     TextSecurePreferences.setSignedPreKeyRegistered(RegistrationActivity.this, true);
     TextSecurePreferences.setPromptedPushRegistration(RegistrationActivity.this, true);
     TextSecurePreferences.setUnauthorizedReceived(RegistrationActivity.this, false);

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

@@ -52,14 +52,13 @@ public class RefreshAttributesJob extends ContextJob implements InjectableType {
 
   @Override
   public void onRun() throws IOException {
-    String  signalingKey                = TextSecurePreferences.getSignalingKey(context);
     int     registrationId              = TextSecurePreferences.getLocalRegistrationId(context);
     boolean fetchesMessages             = TextSecurePreferences.isGcmDisabled(context);
     String  pin                         = TextSecurePreferences.getRegistrationLockPin(context);
     byte[]  unidentifiedAccessKey       = UnidentifiedAccessUtil.getSelfUnidentifiedAccessKey(context);
     boolean universalUnidentifiedAccess = TextSecurePreferences.isUniversalUnidentifiedAccess(context);
 
-    signalAccountManager.setAccountAttributes(signalingKey, registrationId, fetchesMessages, pin,
+    signalAccountManager.setAccountAttributes(null, registrationId, fetchesMessages, pin,
                                               unidentifiedAccessKey, universalUnidentifiedAccess);
 
     ApplicationContext.getInstance(context)

src/org/thoughtcrime/securesms/util/TextSecurePreferences.java

@@ -620,10 +620,6 @@ public class TextSecurePreferences {
     setStringPreference(context, GCM_PASSWORD_PREF, password);
   }
 
-  public static void setSignalingKey(Context context, String signalingKey) {
-    setStringPreference(context, SIGNALING_KEY_PREF, signalingKey);
-  }
-
   public static String getSignalingKey(Context context) {
     return getStringPreference(context, SIGNALING_KEY_PREF, null);
   }