Check link title against link target

app/src/main/java/eu/faircode/email/AdapterMessage.java

@@ -4118,6 +4118,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             View view = LayoutInflater.from(getContext()).inflate(R.layout.dialog_open_link, null);
             TextView tvTitle = view.findViewById(R.id.tvTitle);
             final EditText etLink = view.findViewById(R.id.etLink);
+            TextView tvDifferent = view.findViewById(R.id.tvDifferent);
             final CheckBox cbSecure = view.findViewById(R.id.cbSecure);
             CheckBox cbSanitize = view.findViewById(R.id.cbSanitize);
             final Button btnOwner = view.findViewById(R.id.btnOwner);
@@ -4244,6 +4245,11 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             tvTitle.setVisibility(TextUtils.isEmpty(title) ? View.GONE : View.VISIBLE);
             etLink.setText(uri.toString());
 
+            Uri uriTitle = Uri.parse(title == null ? "" : title);
+            tvDifferent.setVisibility(uriTitle.getHost() == null || uri.getHost() == null ||
+                    uriTitle.getHost().equalsIgnoreCase(uri.getHost())
+                    ? View.GONE : View.VISIBLE);
+
             return new AlertDialog.Builder(getContext())
                     .setView(view)
                     .setPositiveButton(R.string.title_yes, new DialogInterface.OnClickListener() {

app/src/main/res/layout/dialog_open_link.xml

@@ -43,6 +43,19 @@
         <requestFocus />
     </EditText>
 
+    <TextView
+        android:id="@+id/tvDifferent"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="24dp"
+        android:labelFor="@+id/etLink"
+        android:text="@string/title_different_link"
+        android:textAppearance="@style/TextAppearance.AppCompat.Small"
+        android:textColor="?attr/colorWarning"
+        android:textStyle="bold"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/etLink" />
+
     <CheckBox
         android:id="@+id/cbSecure"
         android:layout_width="wrap_content"
@@ -52,7 +65,7 @@
         android:textColor="?attr/colorWarning"
         android:textStyle="bold"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/etLink" />
+        app:layout_constraintTop_toBottomOf="@id/tvDifferent" />
 
     <CheckBox
         android:id="@+id/cbSanitize"

app/src/main/res/values/strings.xml

@@ -836,6 +836,7 @@
     <string name="title_hint_contact_actions">Long press for options</string>
 
     <string name="title_open_link">Open link</string>
+    <string name="title_different_link">The title and the link address are different</string>
     <string name="title_secure_link">Make connection secure</string>
     <string name="title_link_secured">Connection is secure</string>
     <string name="title_sanitize_link">Remove tracking parameters</string>