Handle content URI permissions on drop (ede5f548) · Commits · e / os / android_frameworks_base

Android.mk

+1 −0

Original line number	Diff line number	Diff line
		@@ -303,6 +303,7 @@ LOCAL_SRC_FILES += \
		core/java/com/android/internal/textservice/ISpellCheckerSessionListener.aidl \
		core/java/com/android/internal/textservice/ITextServicesManager.aidl \
		core/java/com/android/internal/textservice/ITextServicesSessionListener.aidl \
		core/java/com/android/internal/view/IDropPermissionHolder.aidl \
		core/java/com/android/internal/view/IInputContext.aidl \
		core/java/com/android/internal/view/IInputContextCallback.aidl \
		core/java/com/android/internal/view/IInputMethod.aidl \

api/current.txt

+14 −0

Original line number	Diff line number	Diff line
		@@ -34802,6 +34802,7 @@ package android.view {
		method public int getAction();
		method public android.content.ClipData getClipData();
		method public android.content.ClipDescription getClipDescription();
		method public android.view.DropPermissionHolder getDropPermissionHolder();
		method public java.lang.Object getLocalState();
		method public boolean getResult();
		method public float getX();
		@@ -34816,6 +34817,14 @@ package android.view {
		field public static final android.os.Parcelable.Creator<android.view.DragEvent> CREATOR;
		}

		public class DropPermissionHolder implements android.os.Parcelable {
		method public int describeContents();
		method public void grant();
		method public void revoke();
		method public void writeToParcel(android.os.Parcel, int);
		field public static final android.os.Parcelable.Creator<android.view.DropPermissionHolder> CREATOR;
		}

		public class FocusFinder {
		method public android.view.View findNearestTouchable(android.view.ViewGroup, int, int, int, int[]);
		method public final android.view.View findNextFocus(android.view.ViewGroup, android.view.View, int);
		@@ -36519,6 +36528,11 @@ package android.view {
		field public static final int ACCESSIBILITY_LIVE_REGION_NONE = 0; // 0x0
		field public static final int ACCESSIBILITY_LIVE_REGION_POLITE = 1; // 0x1
		field public static final android.util.Property<android.view.View, java.lang.Float> ALPHA;
		field public static final int DRAG_FLAG_GLOBAL = 256; // 0x100
		field public static final int DRAG_FLAG_GLOBAL_PERSISTABLE_URI_PERMISSION = 64; // 0x40
		field public static final int DRAG_FLAG_GLOBAL_PREFIX_URI_PERMISSION = 128; // 0x80
		field public static final int DRAG_FLAG_GLOBAL_URI_READ = 1; // 0x1
		field public static final int DRAG_FLAG_GLOBAL_URI_WRITE = 2; // 0x2
		field public static final int DRAG_FLAG_OPAQUE = 512; // 0x200
		field public static final int DRAWING_CACHE_QUALITY_AUTO = 0; // 0x0
		field public static final int DRAWING_CACHE_QUALITY_HIGH = 1048576; // 0x100000

api/system-current.txt

+14 −0

Original line number	Diff line number	Diff line
		@@ -37096,6 +37096,7 @@ package android.view {
		method public int getAction();
		method public android.content.ClipData getClipData();
		method public android.content.ClipDescription getClipDescription();
		method public android.view.DropPermissionHolder getDropPermissionHolder();
		method public java.lang.Object getLocalState();
		method public boolean getResult();
		method public float getX();
		@@ -37110,6 +37111,14 @@ package android.view {
		field public static final android.os.Parcelable.Creator<android.view.DragEvent> CREATOR;
		}

		public class DropPermissionHolder implements android.os.Parcelable {
		method public int describeContents();
		method public void grant();
		method public void revoke();
		method public void writeToParcel(android.os.Parcel, int);
		field public static final android.os.Parcelable.Creator<android.view.DropPermissionHolder> CREATOR;
		}

		public class FocusFinder {
		method public android.view.View findNearestTouchable(android.view.ViewGroup, int, int, int, int[]);
		method public final android.view.View findNextFocus(android.view.ViewGroup, android.view.View, int);
		@@ -38813,6 +38822,11 @@ package android.view {
		field public static final int ACCESSIBILITY_LIVE_REGION_NONE = 0; // 0x0
		field public static final int ACCESSIBILITY_LIVE_REGION_POLITE = 1; // 0x1
		field public static final android.util.Property<android.view.View, java.lang.Float> ALPHA;
		field public static final int DRAG_FLAG_GLOBAL = 256; // 0x100
		field public static final int DRAG_FLAG_GLOBAL_PERSISTABLE_URI_PERMISSION = 64; // 0x40
		field public static final int DRAG_FLAG_GLOBAL_PREFIX_URI_PERMISSION = 128; // 0x80
		field public static final int DRAG_FLAG_GLOBAL_URI_READ = 1; // 0x1
		field public static final int DRAG_FLAG_GLOBAL_URI_WRITE = 2; // 0x2
		field public static final int DRAG_FLAG_OPAQUE = 512; // 0x200
		field public static final int DRAWING_CACHE_QUALITY_AUTO = 0; // 0x0
		field public static final int DRAWING_CACHE_QUALITY_HIGH = 1048576; // 0x100000

core/java/android/view/DragEvent.java

+31 −6

Original line number	Diff line number	Diff line
		@@ -128,6 +128,8 @@ public class DragEvent implements Parcelable {
		float mX, mY;
		ClipDescription mClipDescription;
		ClipData mClipData;
		DropPermissionHolder mDropPermissionHolder;

		Object mLocalState;
		boolean mDragResult;

		@@ -253,28 +255,30 @@ public class DragEvent implements Parcelable {
		}

		private void init(int action, float x, float y, ClipDescription description, ClipData data,
		Object localState, boolean result) {
		DropPermissionHolder dropPermissionHolder, Object localState, boolean result) {
		mAction = action;
		mX = x;
		mY = y;
		mClipDescription = description;
		mClipData = data;
		mDropPermissionHolder = dropPermissionHolder;
		mLocalState = localState;
		mDragResult = result;
		}

		static DragEvent obtain() {
		return DragEvent.obtain(0, 0f, 0f, null, null, null, false);
		return DragEvent.obtain(0, 0f, 0f, null, null, null, null, false);
		}

		/** @hide */
		public static DragEvent obtain(int action, float x, float y, Object localState,
		ClipDescription description, ClipData data, boolean result) {
		ClipDescription description, ClipData data, DropPermissionHolder dropPermissionHolder,
		boolean result) {
		final DragEvent ev;
		synchronized (gRecyclerLock) {
		if (gRecyclerTop == null) {
		ev = new DragEvent();
		ev.init(action, x, y, description, data, localState, result);
		ev.init(action, x, y, description, data, dropPermissionHolder, localState, result);
		return ev;
		}
		ev = gRecyclerTop;
		@@ -285,7 +289,7 @@ public class DragEvent implements Parcelable {
		ev.mRecycled = false;
		ev.mNext = null;

		ev.init(action, x, y, description, data, localState, result);
		ev.init(action, x, y, description, data, dropPermissionHolder, localState, result);

		return ev;
		}
		@@ -293,7 +297,8 @@ public class DragEvent implements Parcelable {
		/** @hide */
		public static DragEvent obtain(DragEvent source) {
		return obtain(source.mAction, source.mX, source.mY, source.mLocalState,
		source.mClipDescription, source.mClipData, source.mDragResult);
		source.mClipDescription, source.mClipData, source.mDropPermissionHolder,
		source.mDragResult);
		}

		/**
		@@ -357,6 +362,17 @@ public class DragEvent implements Parcelable {
		return mClipDescription;
		}

		/**
		* Returns the {@link android.view.DropPermissionHolder} object that can be used by the drag
		* listener to request and release the permissions for the content URIs contained in the
		* {@link android.content.ClipData} object associated with this event.
		* This method only returns valid data if the event action is {@link #ACTION_DROP}.
		* @return The DropPermissionHolder object used to handle content URI permissions.
		*/
		public DropPermissionHolder getDropPermissionHolder() {
		return mDropPermissionHolder;
		}

		/**
		* Returns the local state object sent to the system as part of the call to
		* {@link android.view.View#startDrag(ClipData,View.DragShadowBuilder,Object,int) startDrag()}.
		@@ -477,6 +493,12 @@ public class DragEvent implements Parcelable {
		dest.writeInt(1);
		mClipDescription.writeToParcel(dest, flags);
		}
		if (mDropPermissionHolder == null) {
		dest.writeInt(0);
		} else {
		dest.writeInt(1);
		mDropPermissionHolder.writeToParcel(dest, flags);
		}
		}

		/**
		@@ -496,6 +518,9 @@ public class DragEvent implements Parcelable {
		if (in.readInt() != 0) {
		event.mClipDescription = ClipDescription.CREATOR.createFromParcel(in);
		}
		if (in.readInt() != 0) {
		event.mDropPermissionHolder = DropPermissionHolder.CREATOR.createFromParcel(in);
		}
		return event;
		}

core/java/android/view/DropPermissionHolder.java

0 → 100644

+161 −0

Original line number	Diff line number	Diff line
		package android.view;

		import android.app.IActivityManager;
		import android.content.ClipData;
		import android.content.Intent;
		import android.net.Uri;
		import android.os.Binder;
		import android.os.IBinder;
		import android.os.Parcel;
		import android.os.Parcelable;
		import android.os.RemoteException;
		import com.android.internal.view.IDropPermissionHolder;

		import java.util.ArrayList;

		public class DropPermissionHolder implements Parcelable {

		IDropPermissionHolder mDropPermissionHolder;

		/**
		* Create a new DropPermissionHolder to be passed to the client with a DragEvent.
		*
		* @hide
		*/
		public DropPermissionHolder(ClipData clipData, IActivityManager activityManager,
		int sourceUid, String targetPackage, int mode, int sourceUserId, int targetUserId) {
		mDropPermissionHolder = new LocalDropPermissionHolder(clipData, activityManager,
		sourceUid, targetPackage, mode, sourceUserId, targetUserId);
		}

		private class LocalDropPermissionHolder extends IDropPermissionHolder.Stub {

		private final IActivityManager mActivityManager;
		private final int mSourceUid;
		private final String mTargetPackage;
		private final int mMode;
		private final int mSourceUserId;
		private final int mTargetUserId;

		IBinder mPermissionOwner = null;

		final private ArrayList<Uri> mUris = new ArrayList<Uri>();

		LocalDropPermissionHolder(ClipData clipData, IActivityManager activityManager,
		int sourceUid, String targetPackage, int mode, int sourceUserId, int targetUserId) {
		mActivityManager = activityManager;
		mSourceUid = sourceUid;
		mTargetPackage = targetPackage;
		mMode = mode;
		mSourceUserId = sourceUserId;
		mTargetUserId = targetUserId;

		int N = clipData.getItemCount();
		for (int i = 0; i != N; ++i) {
		ClipData.Item item = clipData.getItemAt(i);

		if (item.getUri() != null) {
		mUris.add(item.getUri());
		}

		Intent intent = item.getIntent();
		if (intent != null && intent.getData() != null) {
		mUris.add(intent.getData());
		}
		}
		}

		@Override
		public void grant() throws RemoteException {
		if (mPermissionOwner != null) {
		return;
		}

		mPermissionOwner = mActivityManager.newUriPermissionOwner("drop");

		long origId = Binder.clearCallingIdentity();
		try {
		for (Uri mUri : mUris) {
		mActivityManager.grantUriPermissionFromOwner(
		mPermissionOwner, mSourceUid, mTargetPackage, mUri, mMode,
		mSourceUserId, mTargetUserId);
		}
		} finally {
		Binder.restoreCallingIdentity(origId);
		}

		}

		@Override
		public void revoke() throws RemoteException {
		if (mPermissionOwner == null) {
		return;
		}

		for (Uri mUri : mUris) {
		mActivityManager.revokeUriPermissionFromOwner(
		mPermissionOwner, mUri, mMode, mSourceUserId);
		}

		mPermissionOwner = null;
		}
		}

		/**
		* Request permissions granted by the activity which started the drag.
		*/
		public void grant() {
		try {
		mDropPermissionHolder.grant();
		} catch (RemoteException e) {
		}
		}

		/**
		* Revoke permissions granted by the {@link #grant()} call.
		*/
		public void revoke() {
		try {
		mDropPermissionHolder.revoke();
		} catch (RemoteException e) {
		}
		}

		/**
		* Returns information about the {@link android.os.Parcel} representation of this
		* DropPermissionHolder object.
		* @return Information about the {@link android.os.Parcel} representation.
		*/
		@Override
		public int describeContents() {
		return 0;
		}

		/**
		* Creates a {@link android.os.Parcel} object from this DropPermissionHolder object.
		* @param dest A {@link android.os.Parcel} object in which to put the DropPermissionHolder
		* object.
		* @param flags Flags to store in the Parcel.
		*/
		@Override
		public void writeToParcel(Parcel dest, int flags) {
		dest.writeStrongBinder(mDropPermissionHolder.asBinder());
		}

		DropPermissionHolder(Parcel in) {
		mDropPermissionHolder = IDropPermissionHolder.Stub.asInterface(in.readStrongBinder());
		}

		/**
		* A container for creating a DropPermissionHolder from a Parcel.
		*/
		public static final Parcelable.Creator<DropPermissionHolder> CREATOR
		= new Parcelable.Creator<DropPermissionHolder>() {
		public DropPermissionHolder createFromParcel(Parcel in) {
		return new DropPermissionHolder(in);
		}
		public DropPermissionHolder[] newArray(int size) {
		return new DropPermissionHolder[size];
		}
		};
		}