Make 2FA registration screen look like the rest of registration

// FREEBIE

Signal/src/ViewControllers/OWS2FARegistrationViewController.m

@@ -54,6 +54,15 @@ NS_ASSUME_NONNULL_BEGIN
 {
     [super viewDidLoad];
 
+    // The navigation bar is hidden in the registration workflow.
+    if (self.navigationController.navigationBarHidden) {
+        [self.navigationController setNavigationBarHidden:NO animated:YES];
+    }
+    self.navigationItem.hidesBackButton = YES;
+
+    self.title = NSLocalizedString(@"REGISTRATION_ENTER_LOCK_PIN_NAV_TITLE",
+        @"Navigation title shown when user is re-registering after having enabled registration lock");
+
     self.view.backgroundColor = UIColor.whiteColor;
 
     PinEntryView *entryView = [PinEntryView new];
@@ -65,7 +74,6 @@ NS_ASSUME_NONNULL_BEGIN
         @"REGISTER_2FA_INSTRUCTIONS", @"Instructions to enter the 'two-factor auth pin' in the 2FA registration view.");
 
     // Layout
-
     [entryView autoPinEdgesToSuperviewMargins];
 }
 

Signal/translations/en.lproj/Localizable.strings

@@ -1420,6 +1420,9 @@
 /* Label for the country code field */
 "REGISTRATION_DEFAULT_COUNTRY_NAME" = "Country Code";
 
+/* Navigation title shown when user is re-registering after having enabled registration lock */
+"REGISTRATION_ENTER_LOCK_PIN_NAV_TITLE" = "Registration Lock";
+
 /* Placeholder text for the phone number textfield */
 "REGISTRATION_ENTERNUMBER_DEFAULT_TEXT" = "Enter Number";
 

SignalServiceKit/src/Account/TSAccountManager.m

@@ -408,10 +408,11 @@ NSString *const TSAccountManager_ServerSignalingKey = @"TSStorageServerSignaling
                     break;
                 }
                 case 423: {
+                    NSString *localizedMessage = NSLocalizedString(@"REGISTRATION_VERIFICATION_FAILED_WRONG_PIN",
+                        "Error message indicating that registration failed due to a missing or incorrect 2FA PIN.");
                     DDLogError(@"%@ 2FA PIN required: %ld", self.logTag, error.code);
-                    NSError *error = OWSErrorWithCodeDescription(OWSErrorCodeRegistrationMissing2FAPIN,
-                        NSLocalizedString(@"REGISTRATION_VERIFICATION_FAILED_WRONG_PIN",
-                            "Error message indicating that registration failed due to a missing or incorrect 2FA PIN."));
+                    NSError *error
+                        = OWSErrorWithCodeDescription(OWSErrorCodeRegistrationMissing2FAPIN, localizedMessage);
                     failureBlock(error);
                     break;
                 }