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| author | Jeff Sharkey <jsharkey@android.com> | 2016-08-09 19:53:13 +0000 |
|---|---|---|
| committer | android-build-merger <android-build-merger@google.com> | 2016-08-09 19:53:13 +0000 |
| commit | 567e5496142698bc39a462e858e79d65f3ffa6b2 (patch) | |
| tree | e1ad4b1b3c7f9d6918c2e828825cceb7049ad584 /src/com/android/providers/downloads | |
| parent | 725e5f177d75a37e7ed5b27a99405d1b5fa479dd (diff) | |
| parent | a9ea6172320d15fa79d83981d26b31851a97b529 (diff) | |
| download | android_packages_providers_DownloadProvider-567e5496142698bc39a462e858e79d65f3ffa6b2.tar.gz android_packages_providers_DownloadProvider-567e5496142698bc39a462e858e79d65f3ffa6b2.tar.bz2 android_packages_providers_DownloadProvider-567e5496142698bc39a462e858e79d65f3ffa6b2.zip | |
Enforce calling identity before clearing. am: 8be3a92eb0 am: ec19fe6485 am: b3ce7976f2 am: 860239d87e am: 616f47abce
am: a9ea617232
Change-Id: I2fac746922c84d1cb111a59bc1e4b895e2990571
Diffstat (limited to 'src/com/android/providers/downloads')
| -rw-r--r-- | src/com/android/providers/downloads/DownloadProvider.java | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/com/android/providers/downloads/DownloadProvider.java b/src/com/android/providers/downloads/DownloadProvider.java index d9acc789..667a81df 100644 --- a/src/com/android/providers/downloads/DownloadProvider.java +++ b/src/com/android/providers/downloads/DownloadProvider.java @@ -1232,6 +1232,19 @@ public final class DownloadProvider extends ContentProvider { logVerboseOpenFileInfo(uri, mode); } + // Perform normal query to enforce caller identity access before + // clearing it to reach internal-only columns + final Cursor probeCursor = query(uri, new String[] { + Downloads.Impl._DATA }, null, null, null); + try { + if ((probeCursor == null) || (probeCursor.getCount() == 0)) { + throw new FileNotFoundException( + "No file found for " + uri + " as UID " + Binder.getCallingUid()); + } + } finally { + IoUtils.closeQuietly(probeCursor); + } + final Cursor cursor = queryCleared(uri, new String[] { Downloads.Impl._DATA, Downloads.Impl.COLUMN_STATUS, Downloads.Impl.COLUMN_DESTINATION, Downloads.Impl.COLUMN_MEDIA_SCANNED }, null, |