Merge "Add logs for projection start/stop events" into main (67a7a0e0) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/SensitiveContentProtectionManagerService.java

+37 −16

Original line number	Diff line number	Diff line
		@@ -20,6 +20,11 @@ import static android.permission.flags.Flags.sensitiveNotificationAppProtection;
		import static android.provider.Settings.Global.DISABLE_SCREEN_SHARE_PROTECTIONS_FOR_APPS_AND_NOTIFICATIONS;
		import static android.view.flags.Flags.sensitiveContentAppProtection;

		import static com.android.internal.util.FrameworkStatsLog.SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION;
		import static com.android.internal.util.FrameworkStatsLog.SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__SOURCE__FRAMEWORKS;
		import static com.android.internal.util.FrameworkStatsLog.SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__STATE__START;
		import static com.android.internal.util.FrameworkStatsLog.SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__STATE__STOP;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.content.ComponentName;
		@@ -86,9 +91,11 @@ public final class SensitiveContentProtectionManagerService extends SystemServic
		private static class MediaProjectionSession {
		final int mUid;
		final long mSessionId;
		final boolean mIsExempted;

		MediaProjectionSession(int uid, long sessionId) {
		MediaProjectionSession(int uid, boolean isExempted, long sessionId) {
		mUid = uid;
		mIsExempted = isExempted;
		mSessionId = sessionId;
		}
		}
		@@ -105,11 +112,28 @@ public final class SensitiveContentProtectionManagerService extends SystemServic
		} finally {
		Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER);
		}
		FrameworkStatsLog.write(
		SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION,
		mMediaProjectionSession.mSessionId,
		mMediaProjectionSession.mUid,
		mMediaProjectionSession.mIsExempted,
		SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__STATE__START,
		SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__SOURCE__FRAMEWORKS
		);
		}

		@Override
		public void onStop(MediaProjectionInfo info) {
		if (DEBUG) Log.d(TAG, "onStop projection: " + info);
		FrameworkStatsLog.write(
		SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION,
		mMediaProjectionSession.mSessionId,
		mMediaProjectionSession.mUid,
		mMediaProjectionSession.mIsExempted,
		SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__STATE__STOP,
		SENSITIVE_CONTENT_MEDIA_PROJECTION_SESSION__SOURCE__FRAMEWORKS
		);

		Trace.traceBegin(Trace.TRACE_TAG_SYSTEM_SERVER,
		"SensitiveContentProtectionManagerService.onProjectionStop");
		try {
		@@ -207,28 +231,25 @@ public final class SensitiveContentProtectionManagerService extends SystemServic
		}

		private void onProjectionStart(MediaProjectionInfo projectionInfo) {
		// exempt on device screen recorder as well.
		if ((mExemptedPackages != null && mExemptedPackages.contains(
		int uid = mPackageManagerInternal.getPackageUid(projectionInfo.getPackageName(), 0,
		projectionInfo.getUserHandle().getIdentifier());
		boolean isPackageExempted = (mExemptedPackages != null && mExemptedPackages.contains(
		projectionInfo.getPackageName()))
		\|\| canRecordSensitiveContent(projectionInfo.getPackageName())) {
		Log.w(TAG, projectionInfo.getPackageName() + " is exempted.");
		return;
		}
		\|\| canRecordSensitiveContent(projectionInfo.getPackageName());
		// TODO(b/324447419): move GlobalSettings lookup to background thread
		boolean disableScreenShareProtections =
		Settings.Global.getInt(getContext().getContentResolver(),
		boolean isFeatureDisabled = Settings.Global.getInt(getContext().getContentResolver(),
		DISABLE_SCREEN_SHARE_PROTECTIONS_FOR_APPS_AND_NOTIFICATIONS, 0) != 0;
		if (disableScreenShareProtections) {
		Log.w(TAG, "Screen share protections disabled, ignoring projection start");
		mMediaProjectionSession = new MediaProjectionSession(
		uid, isPackageExempted \|\| isFeatureDisabled, new Random().nextLong());

		if (isPackageExempted \|\| isFeatureDisabled) {
		Log.w(TAG, "projection session is exempted, package ="
		+ projectionInfo.getPackageName() + ", isFeatureDisabled=" + isFeatureDisabled);
		return;
		}

		synchronized (mSensitiveContentProtectionLock) {
		mProjectionActive = true;
		int uid = mPackageManagerInternal.getPackageUid(projectionInfo.getPackageName(), 0,
		projectionInfo.getUserHandle().getIdentifier());
		// TODO review sessionId, whether to use a sequence generator or random is good?
		mMediaProjectionSession = new MediaProjectionSession(uid, new Random().nextLong());
		if (sensitiveNotificationAppProtection()) {
		updateAppsThatShouldBlockScreenCapture();
		}