Add clear all data option to settings

Signal/src/ViewControllers/AppSettings/AppSettingsViewController.m

@@ -249,6 +249,12 @@
                           accessibilityIdentifier:ACCESSIBILITY_IDENTIFIER_WITH_NAME(self, @"show_seed")
                                          selector:@selector(showSeed)
                                             color:[UIColor ows_materialBlueColor]]];
+
+    [section
+     addItem:[self destructiveButtonItemWithTitle:NSLocalizedString(@"Clear All Data", @"")
+                          accessibilityIdentifier:ACCESSIBILITY_IDENTIFIER_WITH_NAME(self, @"clear_all_data")
+                                         selector:@selector(clearAllData)
+                                            color:[UIColor ows_destructiveRedColor]]];
     
     if (TSAccountManager.sharedInstance.isDeregistered) {
         [section addItem:[self destructiveButtonItemWithTitle:NSLocalizedString(@"SETTINGS_REREGISTER_BUTTON",
@@ -522,6 +528,25 @@
     [self presentAlert:alert];
 }
 
+- (void)clearAllData
+{
+    NSString *title = NSLocalizedString(@"Clear All Data", @"");
+    NSString *message = NSLocalizedString(@"Are you sure you want to clear all your data? This will delete your entire account, including all conversations and your personal key pair.", @"");
+    UIAlertController *alert = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
+    [alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"OK", @"") style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
+        [ThreadUtil deleteAllContent];
+        [SSKEnvironment.shared.identityManager clearIdentityKey];
+        [LKAPI clearRandomSnodePool];
+        [LKAPI stopLongPolling];
+        UIViewController *rootViewController = [[OnboardingController new] initialViewController];
+        OWSNavigationController *navigationController = [[OWSNavigationController alloc] initWithRootViewController:rootViewController];
+        navigationController.navigationBarHidden = YES;
+        UIApplication.sharedApplication.keyWindow.rootViewController = navigationController;
+    }]];
+    [alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"Cancel", @"") style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) { /* Do nothing */ }]];
+    [self presentAlert:alert];
+}
+
 - (void)reregisterUser
 {
     [RegistrationUtils showReregistrationUIFromViewController:self];

Signal/translations/en.lproj/Localizable.strings

@@ -2600,3 +2600,6 @@
 "Looks like you don't have any conversations yet. Get started by messaging a friend." = "Looks like you don't have any conversations yet. Get started by messaging a friend.";
 "Enter the public key of the person you'd like to securely message. They can share their public key with you by going into Loki Messenger's in-app settings and clicking \"Share Public Key\"." = "Enter the public key of the person you'd like to securely message. They can share their public key with you by going into Loki Messenger's in-app settings and clicking \"Share Public Key\".";
 "Unlock Loki Messenger" = "Unlock Loki Messenger";
+"Clear All Data" = "Clear All Data";
+"Are you sure you want to clear all your data? This will delete your entire account, including all conversations and your personal key pair." = "Are you sure you want to clear all your data? This will delete your entire account, including all conversations and your personal key pair.";
+"Cancel" = "Cancel";

SignalServiceKit/src/Loki/API/LokiAPI+SwarmAPI.swift

@@ -41,6 +41,10 @@ public extension LokiAPI {
     // MARK: Clearnet Setup
     fileprivate static let seedNodePool: Set<String> = [ "http://3.104.19.14:22023", "http://13.238.53.205:38157", "http://imaginary.stream:38157" ]
     fileprivate static var randomSnodePool: Set<LokiAPITarget> = []
+
+    @objc public static func clearRandomSnodePool() {
+        randomSnodePool.removeAll()
+    }
     
     // MARK: Internal API
     private static func getRandomSnode() -> Promise<LokiAPITarget> {

SignalServiceKit/src/Messages/OWSIdentityManager.h

@@ -36,6 +36,7 @@ extern const NSUInteger kStoredIdentityKeyLength;
 + (instancetype)sharedManager;
 
 - (void)generateNewIdentityKey;
+- (void)clearIdentityKey;
 
 - (void)setVerificationState:(OWSVerificationState)verificationState
                  identityKey:(NSData *)identityKey

SignalServiceKit/src/Messages/OWSIdentityManager.m

@@ -124,6 +124,12 @@ NSString *const kNSNotificationName_IdentityStateDidChange = @"kNSNotificationNa
                     inCollection:OWSPrimaryStorageIdentityKeyStoreCollection];
 }
 
+- (void)clearIdentityKey
+{
+    [self.dbConnection removeObjectForKey:OWSPrimaryStorageIdentityKeyStoreIdentityKey
+                             inCollection:OWSPrimaryStorageIdentityKeyStoreCollection];
+}
+
 - (nullable NSData *)identityKeyForRecipientId:(NSString *)recipientId
 {
     __block NSData *_Nullable result = nil;