Validate URI-based shortcut icon at creation time.

Bug: 288113797
Test: manual
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:3d41fb7620ffb9c81b23977c8367c323e4721e65)
Merged-In: I392f8e923923bf40827a2b6207c4eaa262694fbc
Change-Id: I392f8e923923bf40827a2b6207c4eaa262694fbc

services/core/java/com/android/server/pm/ShortcutService.java

diff --git a/services/core/java/com/android/server/pm/ShortcutService.java b/services/core/java/com/android/server/pm/ShortcutService.java
index 2f3056e..937f0d9 100644
--- a/services/core/java/com/android/server/pm/ShortcutService.java
+++ b/services/core/java/com/android/server/pm/ShortcutService.java
@@ -34,6 +34,7 @@
 import android.appwidget.AppWidgetProviderInfo;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
+import android.content.ContentProvider;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
@@ -1913,11 +1914,32 @@
         }
         if (shortcut.getIcon() != null) {
             ShortcutInfo.validateIcon(shortcut.getIcon());
+            validateIconURI(shortcut);
         }
 
         shortcut.replaceFlags(shortcut.getFlags() & ShortcutInfo.FLAG_LONG_LIVED);
     }
 
+    // Validates the calling process has permission to access shortcut icon's image uri
+    private void validateIconURI(@NonNull final ShortcutInfo si) {
+        final int callingUid = injectBinderCallingUid();
+        final Icon icon = si.getIcon();
+        if (icon == null) {
+            // There's no icon in this shortcut, nothing to validate here.
+            return;
+        }
+        int iconType = icon.getType();
+        if (iconType != Icon.TYPE_URI && iconType != Icon.TYPE_URI_ADAPTIVE_BITMAP) {
+            // The icon is not URI-based, nothing to validate.
+            return;
+        }
+        final Uri uri = icon.getUri();
+        mUriGrantsManagerInternal.checkGrantUriPermission(callingUid, si.getPackage(),
+                ContentProvider.getUriWithoutUserId(uri),
+                Intent.FLAG_GRANT_READ_URI_PERMISSION,
+                ContentProvider.getUserIdFromUri(uri, UserHandle.getUserId(callingUid)));
+    }
+
     private void fixUpIncomingShortcutInfo(@NonNull ShortcutInfo shortcut, boolean forUpdate) {
         fixUpIncomingShortcutInfo(shortcut, forUpdate, /*forPinRequest=*/ false);
     }