Merge "[SettingsProvider] verify ringtone URI before setting" into rvc-dev am: 941891258d am: 037f529f7d am: 456da723a4 am: ff4b06296f
Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24424817
Change-Id: I290c3bbde0d65908155b87d2d4f342d83745ecbe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index 8dd77a6..4df5650 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -1906,6 +1906,9 @@
cacheName = Settings.System.ALARM_ALERT_CACHE;
}
if (cacheName != null) {
+ if (!isValidAudioUri(name, value)) {
+ return false;
+ }
final File cacheFile = new File(
getRingtoneCacheDir(owningUserId), cacheName);
cacheFile.delete();
@@ -1938,6 +1941,34 @@
}
}
+ private boolean isValidAudioUri(String name, String uri) {
+ if (uri != null) {
+ Uri audioUri = Uri.parse(uri);
+ if (Settings.AUTHORITY.equals(
+ ContentProvider.getAuthorityWithoutUserId(audioUri.getAuthority()))) {
+ // Don't accept setting the default uri to self-referential URIs like
+ // Settings.System.DEFAULT_RINGTONE_URI, which is an alias to the value of this
+ // setting.
+ return false;
+ }
+ final String mimeType = getContext().getContentResolver().getType(audioUri);
+ if (mimeType == null) {
+ Slog.e(LOG_TAG,
+ "mutateSystemSetting for setting: " + name + " URI: " + audioUri
+ + " ignored: failure to find mimeType (no access from this context?)");
+ return false;
+ }
+ if (!(mimeType.startsWith("audio/") || mimeType.equals("application/ogg")
+ || mimeType.equals("application/x-flac"))) {
+ Slog.e(LOG_TAG,
+ "mutateSystemSetting for setting: " + name + " URI: " + audioUri
+ + " ignored: associated mimeType: " + mimeType + " is not an audio type");
+ return false;
+ }
+ }
+ return true;
+ }
+
private boolean hasWriteSecureSettingsPermission() {
// Write secure settings is a more protected permission. If caller has it we are good.
return getContext().checkCallingOrSelfPermission(Manifest.permission.WRITE_SECURE_SETTINGS)