From c479dd404cca0e019e807ed7cc6df8bb573d72b5 Mon Sep 17 00:00:00 2001
From: Alex Hart <alex@signal.org>
Date: Tue, 8 Aug 2023 16:23:54 -0300
Subject: [PATCH] Add invalid call link dialog.

---
 .../securesms/util/CommunicationActions.java           | 10 ++++++++++
 app/src/main/res/values/strings.xml                    |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/app/src/main/java/org/thoughtcrime/securesms/util/CommunicationActions.java b/app/src/main/java/org/thoughtcrime/securesms/util/CommunicationActions.java
index a9749e6a56..bb9babbcdc 100644
--- a/app/src/main/java/org/thoughtcrime/securesms/util/CommunicationActions.java
+++ b/app/src/main/java/org/thoughtcrime/securesms/util/CommunicationActions.java
@@ -335,9 +335,19 @@ public class CommunicationActions {
   }
 
   public static void handlePotentialCallLinkUrl(@NonNull FragmentActivity activity, @NonNull String potentialUrl) {
+    if (!FeatureFlags.adHocCalling()) {
+      Toast.makeText(activity, R.string.CommunicationActions_cant_join_call, Toast.LENGTH_SHORT).show();
+      return;
+    }
+
     CallLinkRootKey rootKey = CallLinks.parseUrl(potentialUrl);
     if (rootKey == null) {
       Log.w(TAG, "Failed to parse root key from call link");
+      new MaterialAlertDialogBuilder(activity)
+          .setTitle(R.string.CommunicationActions_invalid_link)
+          .setMessage(R.string.CommunicationActions_this_is_not_a_valid_call_link)
+          .setPositiveButton(android.R.string.ok, null)
+          .show();
       return;
     }
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index e1a2a276ce..f3e1df0880 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -242,6 +242,10 @@
     <string name="CommunicationActions_carrier_charges_may_apply">Carrier charges may apply. The number you are calling is not registered with Signal. This call will be placed through your mobile carrier, not over the internet.</string>
     <string name="CommunicationActions_cant_join_call">Can\'t join call</string>
     <string name="CommunicationActions_this_call_link_is_no_longer_valid">This call link is no longer valid.</string>
+    <!-- Title on dialog when call link url cannot be parsed -->
+    <string name="CommunicationActions_invalid_link">Invalid link</string>
+    <!-- Message on dialog when call link url cannot be parsed -->
+    <string name="CommunicationActions_this_is_not_a_valid_call_link">This is not a valid call link. Make sure the entire link is intact and correct before attempting to join.</string>
 
     <!-- ConfirmIdentityDialog -->