Merge "Disallow applications from initiating cast screen." into klp-dev (3de885be) · Commits · e / os / android_frameworks_base

core/java/android/hardware/display/DisplayManager.java

+5 −2

Original line number	Diff line number	Diff line
		@@ -299,6 +299,10 @@ public final class DisplayManager {
		/**
		* Initiates a fresh scan of availble Wifi displays.
		* The results are sent as a {@link #ACTION_WIFI_DISPLAY_STATUS_CHANGED} broadcast.
		* <p>
		* Requires {@link android.Manifest.permission#CONFIGURE_WIFI_DISPLAY}.
		* </p>
		*
		* @hide
		*/
		public void scanWifiDisplays() {
		@@ -312,8 +316,7 @@ public final class DisplayManager {
		* Automatically remembers the display after a successful connection, if not
		* already remembered.
		* </p><p>
		* Requires {@link android.Manifest.permission#CONFIGURE_WIFI_DISPLAY} to connect
		* to unknown displays. No permissions are required to connect to already known displays.
		* Requires {@link android.Manifest.permission#CONFIGURE_WIFI_DISPLAY}.
		* </p>
		*
		* @param deviceAddress The MAC address of the device to which we should connect.

media/java/android/media/MediaRouter.java

+65 −8

Original line number	Diff line number	Diff line
		@@ -18,11 +18,13 @@ package android.media;

		import com.android.internal.util.Objects;

		import android.Manifest;
		import android.app.ActivityThread;
		import android.content.BroadcastReceiver;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.content.pm.PackageManager;
		import android.content.res.Resources;
		import android.graphics.drawable.Drawable;
		import android.hardware.display.DisplayManager;
		@@ -30,6 +32,7 @@ import android.hardware.display.WifiDisplay;
		import android.hardware.display.WifiDisplayStatus;
		import android.os.Handler;
		import android.os.IBinder;
		import android.os.Process;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.os.UserHandle;
		@@ -82,6 +85,7 @@ public class MediaRouter {

		RouteInfo mSelectedRoute;

		final boolean mCanConfigureWifiDisplays;
		boolean mActivelyScanningWifiDisplays;

		int mDiscoveryRequestRouteTypes;
		@@ -129,6 +133,13 @@ public class MediaRouter {
		com.android.internal.R.string.default_audio_route_category_name,
		ROUTE_TYPE_LIVE_AUDIO \| ROUTE_TYPE_LIVE_VIDEO, false);
		mSystemCategory.mIsSystem = true;

		// Only the system can configure wifi displays. The display manager
		// enforces this with a permission check. Set a flag here so that we
		// know whether this process is actually allowed to scan and connect.
		mCanConfigureWifiDisplays = appContext.checkPermission(
		Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		Process.myPid(), Process.myUid()) == PackageManager.PERMISSION_GRANTED;
		}

		// Called after sStatic is initialized
		@@ -255,7 +266,7 @@ public class MediaRouter {
		}
		if ((cbi.flags & CALLBACK_FLAG_PERFORM_ACTIVE_SCAN) != 0) {
		activeScan = true;
		if ((cbi.type & (ROUTE_TYPE_LIVE_VIDEO \| ROUTE_TYPE_REMOTE_DISPLAY)) != 0) {
		if ((cbi.type & ROUTE_TYPE_REMOTE_DISPLAY) != 0) {
		activeScanWifiDisplay = true;
		}
		}
		@@ -268,7 +279,7 @@ public class MediaRouter {
		}

		// Update wifi display scanning.
		if (activeScanWifiDisplay) {
		if (activeScanWifiDisplay && mCanConfigureWifiDisplays) {
		if (!mActivelyScanningWifiDisplays) {
		mActivelyScanningWifiDisplays = true;
		mHandler.post(mScanWifiDisplays);
		@@ -493,7 +504,8 @@ public class MediaRouter {
		route.mDescription = globalRoute.description;
		changed = true;
		}
		if (route.mSupportedTypes != globalRoute.supportedTypes) {
		final int oldSupportedTypes = route.mSupportedTypes;
		if (oldSupportedTypes != globalRoute.supportedTypes) {
		route.mSupportedTypes = globalRoute.supportedTypes;
		changed = true;
		}
		@@ -536,7 +548,7 @@ public class MediaRouter {
		}

		if (changed) {
		dispatchRouteChanged(route);
		dispatchRouteChanged(route, oldSupportedTypes);
		}
		if (volumeChanged) {
		dispatchRouteVolumeChanged(route);
		@@ -908,7 +920,12 @@ public class MediaRouter {
		final boolean newRouteHasAddress = route != null && route.mDeviceAddress != null;
		if (activeDisplay != null \|\| oldRouteHasAddress \|\| newRouteHasAddress) {
		if (newRouteHasAddress && !matchesDeviceAddress(activeDisplay, route)) {
		if (sStatic.mCanConfigureWifiDisplays) {
		sStatic.mDisplayService.connectWifiDisplay(route.mDeviceAddress);
		} else {
		Log.e(TAG, "Cannot connect to wifi displays because this process "
		+ "is not allowed to do so.");
		}
		} else if (activeDisplay != null && !newRouteHasAddress) {
		sStatic.mDisplayService.disconnectWifiDisplay();
		}
		@@ -1175,10 +1192,34 @@ public class MediaRouter {
		}

		static void dispatchRouteChanged(RouteInfo info) {
		dispatchRouteChanged(info, info.mSupportedTypes);
		}

		static void dispatchRouteChanged(RouteInfo info, int oldSupportedTypes) {
		final int newSupportedTypes = info.mSupportedTypes;
		for (CallbackInfo cbi : sStatic.mCallbacks) {
		if (cbi.filterRouteEvent(info)) {
		// Reconstruct some of the history for callbacks that may not have observed
		// all of the events needed to correctly interpret the current state.
		// FIXME: This is a strong signal that we should deprecate route type filtering
		// completely in the future because it can lead to inconsistencies in
		// applications.
		final boolean oldVisibility = cbi.filterRouteEvent(oldSupportedTypes);
		final boolean newVisibility = cbi.filterRouteEvent(newSupportedTypes);
		if (!oldVisibility && newVisibility) {
		cbi.cb.onRouteAdded(cbi.router, info);
		if (info.isSelected()) {
		cbi.cb.onRouteSelected(cbi.router, newSupportedTypes, info);
		}
		}
		if (oldVisibility \|\| newVisibility) {
		cbi.cb.onRouteChanged(cbi.router, info);
		}
		if (oldVisibility && !newVisibility) {
		if (info.isSelected()) {
		cbi.cb.onRouteUnselected(cbi.router, oldSupportedTypes, info);
		}
		cbi.cb.onRouteRemoved(cbi.router, info);
		}
		}
		}

		@@ -1257,6 +1298,18 @@ public class MediaRouter {
		if (status.getFeatureState() == WifiDisplayStatus.FEATURE_STATE_ON) {
		displays = status.getDisplays();
		activeDisplay = status.getActiveDisplay();

		// Only the system is able to connect to wifi display routes.
		// The display manager will enforce this with a permission check but it
		// still publishes information about all available displays.
		// Filter the list down to just the active display.
		if (!sStatic.mCanConfigureWifiDisplays) {
		if (activeDisplay != null) {
		displays = new WifiDisplay[] { activeDisplay };
		} else {
		displays = WifiDisplay.EMPTY_ARRAY;
		}
		}
		} else {
		displays = WifiDisplay.EMPTY_ARRAY;
		activeDisplay = null;
		@@ -1293,7 +1346,7 @@ public class MediaRouter {

		// Don't scan if we're already connected to a wifi display,
		// the scanning process can cause a hiccup with some configurations.
		if (wantScan && activeDisplay != null) {
		if (wantScan && activeDisplay != null && sStatic.mCanConfigureWifiDisplays) {
		sStatic.mDisplayService.scanWifiDisplays();
		}
		}
		@@ -2547,8 +2600,12 @@ public class MediaRouter {
		}

		public boolean filterRouteEvent(RouteInfo route) {
		return filterRouteEvent(route.mSupportedTypes);
		}

		public boolean filterRouteEvent(int supportedTypes) {
		return (flags & CALLBACK_FLAG_UNFILTERED_EVENTS) != 0
		\|\| (type & route.mSupportedTypes) != 0;
		\|\| (type & supportedTypes) != 0;
		}
		}

media/java/android/media/MediaRouterClientState.java

+17 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,17 @@ public final class MediaRouterClientState implements Parcelable {
		globallySelectedRouteId = src.readString();
		}

		public RouteInfo getRoute(String id) {
		final int count = routes.size();
		for (int i = 0; i < count; i++) {
		final RouteInfo route = routes.get(i);
		if (route.id.equals(id)) {
		return route;
		}
		}
		return null;
		}

		@Override
		public int describeContents() {
		return 0;
		@@ -61,6 +72,12 @@ public final class MediaRouterClientState implements Parcelable {
		dest.writeString(globallySelectedRouteId);
		}

		@Override
		public String toString() {
		return "MediaRouterClientState{ globallySelectedRouteId="
		+ globallySelectedRouteId + ", routes=" + routes.toString() + " }";
		}

		public static final Parcelable.Creator<MediaRouterClientState> CREATOR =
		new Parcelable.Creator<MediaRouterClientState>() {
		@Override

packages/SystemUI/AndroidManifest.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -71,6 +71,9 @@
		<!-- Keyguard -->
		<uses-permission android:name="android.permission.CONTROL_KEYGUARD" />

		<!-- Wifi Display -->
		<uses-permission android:name="android.permission.CONFIGURE_WIFI_DISPLAY" />

		<application
		android:persistent="true"
		android:allowClearUserData="false"

services/java/com/android/server/display/DisplayManagerService.java

+22 −27

Original line number	Diff line number	Diff line
		@@ -466,6 +466,9 @@ public final class DisplayManagerService extends IDisplayManager.Stub {

		@Override // Binder call
		public void scanWifiDisplays() {
		mContext.enforceCallingOrSelfPermission(Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		"Permission required to scan wifi displays");

		final long token = Binder.clearCallingIdentity();
		try {
		synchronized (mSyncRoot) {
		@@ -483,13 +486,14 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
		if (address == null) {
		throw new IllegalArgumentException("address must not be null");
		}
		mContext.enforceCallingOrSelfPermission(Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		"Permission required to connect to a wifi display");

		final boolean trusted = canCallerConfigureWifiDisplay();
		final long token = Binder.clearCallingIdentity();
		try {
		synchronized (mSyncRoot) {
		if (mWifiDisplayAdapter != null) {
		mWifiDisplayAdapter.requestConnectLocked(address, trusted);
		mWifiDisplayAdapter.requestConnectLocked(address);
		}
		}
		} finally {
		@@ -499,12 +503,8 @@ public final class DisplayManagerService extends IDisplayManager.Stub {

		@Override
		public void pauseWifiDisplay() {
		if (mContext.checkCallingPermission(
		android.Manifest.permission.CONFIGURE_WIFI_DISPLAY)
		!= PackageManager.PERMISSION_GRANTED) {
		throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY"
		+ "permission to pause a wifi display session.");
		}
		mContext.enforceCallingOrSelfPermission(Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		"Permission required to pause a wifi display session");

		final long token = Binder.clearCallingIdentity();
		try {
		@@ -520,12 +520,8 @@ public final class DisplayManagerService extends IDisplayManager.Stub {

		@Override
		public void resumeWifiDisplay() {
		if (mContext.checkCallingPermission(
		android.Manifest.permission.CONFIGURE_WIFI_DISPLAY)
		!= PackageManager.PERMISSION_GRANTED) {
		throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY"
		+ "permission to resume a wifi display session.");
		}
		mContext.enforceCallingOrSelfPermission(Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		"Permission required to resume a wifi display session");

		final long token = Binder.clearCallingIdentity();
		try {
		@@ -541,6 +537,11 @@ public final class DisplayManagerService extends IDisplayManager.Stub {

		@Override // Binder call
		public void disconnectWifiDisplay() {
		// This request does not require special permissions.
		// Any app can request disconnection from the currently active wifi display.
		// This exception should no longer be needed once wifi display control moves
		// to the media router service.

		final long token = Binder.clearCallingIdentity();
		try {
		synchronized (mSyncRoot) {
		@@ -558,10 +559,8 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
		if (address == null) {
		throw new IllegalArgumentException("address must not be null");
		}
		if (!canCallerConfigureWifiDisplay()) {
		throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY permission to "
		+ "rename a wifi display.");
		}
		mContext.enforceCallingOrSelfPermission(Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		"Permission required to rename to a wifi display");

		final long token = Binder.clearCallingIdentity();
		try {
		@@ -580,10 +579,8 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
		if (address == null) {
		throw new IllegalArgumentException("address must not be null");
		}
		if (!canCallerConfigureWifiDisplay()) {
		throw new SecurityException("Requires CONFIGURE_WIFI_DISPLAY permission to "
		+ "forget a wifi display.");
		}
		mContext.enforceCallingOrSelfPermission(Manifest.permission.CONFIGURE_WIFI_DISPLAY,
		"Permission required to forget to a wifi display");

		final long token = Binder.clearCallingIdentity();
		try {
		@@ -599,6 +596,9 @@ public final class DisplayManagerService extends IDisplayManager.Stub {

		@Override // Binder call
		public WifiDisplayStatus getWifiDisplayStatus() {
		// This request does not require special permissions.
		// Any app can get information about available wifi displays.

		final long token = Binder.clearCallingIdentity();
		try {
		synchronized (mSyncRoot) {
		@@ -612,11 +612,6 @@ public final class DisplayManagerService extends IDisplayManager.Stub {
		}
		}

		private boolean canCallerConfigureWifiDisplay() {
		return mContext.checkCallingPermission(android.Manifest.permission.CONFIGURE_WIFI_DISPLAY)
		== PackageManager.PERMISSION_GRANTED;
		}

		@Override // Binder call
		public int createVirtualDisplay(IBinder appToken, String packageName,
		String name, int width, int height, int densityDpi, Surface surface, int flags) {