IOS-9301 Fix crash on MasterKeyViewController.dispatchOnViewDidLoadAction()

(cherry picked from commit 727eeda)

Author: gmagpayo

MEGAUnitTests/Mocks/Router/MockRecoveryKeyViewRouter.swift

@@ -2,6 +2,7 @@
 
 final class MockRecoveryKeyViewRouter: RecoveryKeyViewRouting {
     private(set) var showSecurityLink_calledTimes = 0
+    private(set) var presentView_calledTimes = 0
     private let _recoveryKeyViewController: UIViewController?
 
     init(recoveryKeyViewController: UIViewController? = nil) {
@@ -15,4 +16,8 @@ final class MockRecoveryKeyViewRouter: RecoveryKeyViewRouting {
     func showSecurityLink() {
         showSecurityLink_calledTimes += 1
     }
+    
+    func presentView() {
+        presentView_calledTimes += 1
+    }
 }

iMEGA/My Account/Settings/Security/ViewModel/RecoveryKeyViewRouter.swift

@@ -5,16 +5,22 @@ import MEGASDKRepo
 protocol RecoveryKeyViewRouting: Routing {
     var recoveryKeyViewController: UIViewController? { get }
     func showSecurityLink()
+    func presentView()
 }
 
 final class RecoveryKeyViewRouter: RecoveryKeyViewRouting {
     private weak var baseViewController: UIViewController?
     private weak var navigationController: UINavigationController?
+    private weak var presenter: UIViewController?
 
     private let securityURLLink = NSURL(string: "https://mega.nz/security")
 
-    init(navigationController: UINavigationController?) {
+    init(
+        navigationController: UINavigationController? = nil,
+        presenter: UIViewController? = nil
+    ) {
         self.navigationController = navigationController
+        self.presenter = presenter
     }
 
     func build() -> UIViewController {
@@ -38,6 +44,17 @@ final class RecoveryKeyViewRouter: RecoveryKeyViewRouting {
         navigationController.pushViewController(build(), animated: true)
     }
 
+    func presentView() {
+        guard let presenter else {
+            MEGALogDebug("[Recovery Key] No presenter UIViewController passed on RecoveryKeyViewRouter")
+            return
+        }
+        
+        let navigationController = MEGANavigationController(rootViewController: build())
+        navigationController.addRightCancelButton()
+        presenter.present(navigationController, animated: true)
+    }
+    
     var recoveryKeyViewController: UIViewController? {
         baseViewController
     }

iMEGA/Utils/MEGALinks/MEGALinkManager+Additions.swift

@@ -272,6 +272,11 @@ extension MEGALinkManager: MEGALinkManagerProtocol {
         guard let mainTabBar = UIApplication.mainTabBarRootViewController() as? MainTabBarController else { return }
         mainTabBar.showCameraUploadsSettings()
     }
+    
+    @objc class func showBackupLinkView() {
+        guard Helper.hasSession_alertIfNot() else { return }
+        RecoveryKeyViewRouter(presenter: UIApplication.mnz_visibleViewController()).presentView()
+    }
 }
 
 // MARK: - Ads

iMEGA/Utils/MEGALinks/MEGALinkManager.m

@@ -647,16 +647,6 @@ + (void)showFolderLinkView {
     [self presentViewControllerWithAds:folderNavigationController adsSlotViewController:folderlinkVC presentationStyle:UIModalPresentationFullScreen];
 }
 
-+ (void)showBackupLinkView {
-    if ([Helper hasSession_alertIfNot]) {
-        MasterKeyViewController *masterKeyVC = [[UIStoryboard storyboardWithName:@"Settings" bundle:nil] instantiateViewControllerWithIdentifier:@"MasterKeyViewControllerID"];
-        MEGANavigationController *navigationController = [[MEGANavigationController alloc] initWithRootViewController:masterKeyVC];
-        [navigationController addRightCancelButton];
-        
-        [UIApplication.mnz_visibleViewController presentViewController:navigationController animated:YES completion:nil];
-    }
-}
-
 + (void)showContactRequestsView {
     if ([Helper hasSession_alertIfNot]) {
         ContactRequestsViewController *contactsRequestsVC = [[UIStoryboard storyboardWithName:@"Contacts" bundle:nil] instantiateViewControllerWithIdentifier:@"ContactsRequestsViewControllerID"];