Allow all apps to call ContentResolver.getType().
I can't find the bug number for this, but it is needed for some things
we are doing where the app building an intent may not have access to the
URI in the data field. This is for HC, but doing in GB to avoid introducing
integration issues.
Change-Id: I0cac971854198b18775d2a73deb80f23431bfbe2
diff --git a/services/java/com/android/server/am/ActivityManagerService.java b/services/java/com/android/server/am/ActivityManagerService.java
index 9685fb7..328dcd2 100644
--- a/services/java/com/android/server/am/ActivityManagerService.java
+++ b/services/java/com/android/server/am/ActivityManagerService.java
@@ -5599,6 +5599,38 @@
}
}
+ /**
+ * Allows app to retrieve the MIME type of a URI without having permission
+ * to access its content provider.
+ *
+ * CTS tests for this functionality can be run with "runtest cts-appsecurity".
+ *
+ * Test cases are at cts/tests/appsecurity-tests/test-apps/UsePermissionDiffCert/
+ * src/com/android/cts/usespermissiondiffcertapp/AccessPermissionWithDiffSigTest.java
+ */
+ public String getProviderMimeType(Uri uri) {
+ final String name = uri.getAuthority();
+ final long ident = Binder.clearCallingIdentity();
+ ContentProviderHolder holder = null;
+
+ try {
+ holder = getContentProviderExternal(name);
+ if (holder != null) {
+ return holder.provider.getType(uri);
+ }
+ } catch (RemoteException e) {
+ Log.w(TAG, "Content provider dead retrieving " + uri, e);
+ return null;
+ } finally {
+ if (holder != null) {
+ removeContentProviderExternal(name);
+ }
+ Binder.restoreCallingIdentity(ident);
+ }
+
+ return null;
+ }
+
// =========================================================
// GLOBAL MANAGEMENT
// =========================================================