Disable purchases and avoid fetching IAPs when device cannot make payments

2 files changed, 21 insertions, 2 deletions

diff --git a/ios/MullvadVPN/AccountViewController.swift b/ios/MullvadVPN/AccountViewController.swift
index 48a1f7d72e..d49e156532 100644
--- a/ios/MullvadVPN/AccountViewController.swift
+++ b/ios/MullvadVPN/AccountViewController.swift
@@ -31,7 +31,9 @@ class AccountViewController: UIViewController {
         UserInterfaceInteractionRestriction(scheduler: DispatchQueue.main) {
             [weak self] (enableUserInteraction, _) in
             // Make sure to disable the button if the product is not loaded
-            self?.purchaseButton.isEnabled = enableUserInteraction && self?.product != nil
+            self?.purchaseButton.isEnabled = enableUserInteraction &&
+                self?.product != nil &&
+                AppStorePaymentManager.canMakePayments
     }
 
     private lazy var viewControllerInteractionRestriction =
@@ -73,7 +75,12 @@ class AccountViewController: UIViewController {
             updateAccountExpiry(expiryDate: expiryDate)
         }
 
-        requestStoreProducts()
+        // Make sure to disable IAPs when payments are restricted
+        if AppStorePaymentManager.canMakePayments {
+            requestStoreProducts()
+        } else {
+            setPaymentsRestricted()
+        }
     }
 
     // MARK: - Private methods
@@ -134,6 +141,13 @@ class AccountViewController: UIViewController {
         purchaseButton.setTitle(title, for: .normal)
     }
 
+    private func setPaymentsRestricted() {
+        let title = NSLocalizedString("Payments restricted", comment: "")
+
+        purchaseButton.setTitle(title, for: .normal)
+        purchaseButton.isEnabled = false
+    }
+
     private func setEnableUserInteraction(_ enableUserInteraction: Bool, animated: Bool) {
         // Disable all buttons
         [restoreButton, logoutButton].forEach { (button) in
diff --git a/ios/MullvadVPN/AppStorePaymentManager.swift b/ios/MullvadVPN/AppStorePaymentManager.swift
index 7addb58d52..04a4928fe4 100644
--- a/ios/MullvadVPN/AppStorePaymentManager.swift
+++ b/ios/MullvadVPN/AppStorePaymentManager.swift
@@ -124,6 +124,11 @@ class AppStorePaymentManager {
     /// A private hash map that maps each payment to account token
     private var paymentToAccountToken = [SKPayment: String]()
 
+    /// Returns true if the device is able to make payments
+    class var canMakePayments: Bool {
+        return SKPaymentQueue.canMakePayments()
+    }
+
     init(queue: SKPaymentQueue) {
         self.queue = queue
     }