diff options
Diffstat (limited to 'services/java/com/android/server/clipboard/ClipboardService.java')
| -rw-r--r-- | services/java/com/android/server/clipboard/ClipboardService.java | 366 |
1 files changed, 0 insertions, 366 deletions
diff --git a/services/java/com/android/server/clipboard/ClipboardService.java b/services/java/com/android/server/clipboard/ClipboardService.java deleted file mode 100644 index 6aa596d..0000000 --- a/services/java/com/android/server/clipboard/ClipboardService.java +++ /dev/null @@ -1,366 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.server.clipboard; - -import android.app.ActivityManagerNative; -import android.app.AppGlobals; -import android.app.AppOpsManager; -import android.app.IActivityManager; -import android.content.BroadcastReceiver; -import android.content.ClipData; -import android.content.ClipDescription; -import android.content.IClipboard; -import android.content.IOnPrimaryClipChangedListener; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.pm.IPackageManager; -import android.content.pm.PackageInfo; -import android.content.pm.PackageManager; -import android.content.pm.PackageManager.NameNotFoundException; -import android.net.Uri; -import android.os.Binder; -import android.os.IBinder; -import android.os.Parcel; -import android.os.Process; -import android.os.RemoteCallbackList; -import android.os.RemoteException; -import android.os.UserHandle; -import android.util.Pair; -import android.util.Slog; -import android.util.SparseArray; - -import java.util.HashSet; - -/** - * Implementation of the clipboard for copy and paste. - */ -public class ClipboardService extends IClipboard.Stub { - - private static final String TAG = "ClipboardService"; - - private final Context mContext; - private final IActivityManager mAm; - private final PackageManager mPm; - private final AppOpsManager mAppOps; - private final IBinder mPermissionOwner; - - private class ListenerInfo { - final int mUid; - final String mPackageName; - ListenerInfo(int uid, String packageName) { - mUid = uid; - mPackageName = packageName; - } - } - - private class PerUserClipboard { - final int userId; - - final RemoteCallbackList<IOnPrimaryClipChangedListener> primaryClipListeners - = new RemoteCallbackList<IOnPrimaryClipChangedListener>(); - - ClipData primaryClip; - - final HashSet<String> activePermissionOwners - = new HashSet<String>(); - - PerUserClipboard(int userId) { - this.userId = userId; - } - } - - private SparseArray<PerUserClipboard> mClipboards = new SparseArray<PerUserClipboard>(); - - /** - * Instantiates the clipboard. - */ - public ClipboardService(Context context) { - mContext = context; - mAm = ActivityManagerNative.getDefault(); - mPm = context.getPackageManager(); - mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE); - IBinder permOwner = null; - try { - permOwner = mAm.newUriPermissionOwner("clipboard"); - } catch (RemoteException e) { - Slog.w("clipboard", "AM dead", e); - } - mPermissionOwner = permOwner; - - // Remove the clipboard if a user is removed - IntentFilter userFilter = new IntentFilter(); - userFilter.addAction(Intent.ACTION_USER_REMOVED); - mContext.registerReceiver(new BroadcastReceiver() { - @Override - public void onReceive(Context context, Intent intent) { - String action = intent.getAction(); - if (Intent.ACTION_USER_REMOVED.equals(action)) { - removeClipboard(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0)); - } - } - }, userFilter); - } - - @Override - public boolean onTransact(int code, Parcel data, Parcel reply, int flags) - throws RemoteException { - try { - return super.onTransact(code, data, reply, flags); - } catch (RuntimeException e) { - if (!(e instanceof SecurityException)) { - Slog.wtf("clipboard", "Exception: ", e); - } - throw e; - } - - } - - private PerUserClipboard getClipboard() { - return getClipboard(UserHandle.getCallingUserId()); - } - - private PerUserClipboard getClipboard(int userId) { - synchronized (mClipboards) { - PerUserClipboard puc = mClipboards.get(userId); - if (puc == null) { - puc = new PerUserClipboard(userId); - mClipboards.put(userId, puc); - } - return puc; - } - } - - private void removeClipboard(int userId) { - synchronized (mClipboards) { - mClipboards.remove(userId); - } - } - - public void setPrimaryClip(ClipData clip, String callingPackage) { - synchronized (this) { - if (clip != null && clip.getItemCount() <= 0) { - throw new IllegalArgumentException("No items"); - } - final int callingUid = Binder.getCallingUid(); - if (mAppOps.noteOp(AppOpsManager.OP_WRITE_CLIPBOARD, callingUid, - callingPackage) != AppOpsManager.MODE_ALLOWED) { - return; - } - checkDataOwnerLocked(clip, callingUid); - clearActiveOwnersLocked(); - PerUserClipboard clipboard = getClipboard(); - clipboard.primaryClip = clip; - final long ident = Binder.clearCallingIdentity(); - final int n = clipboard.primaryClipListeners.beginBroadcast(); - try { - for (int i = 0; i < n; i++) { - try { - ListenerInfo li = (ListenerInfo) - clipboard.primaryClipListeners.getBroadcastCookie(i); - if (mAppOps.checkOpNoThrow(AppOpsManager.OP_READ_CLIPBOARD, li.mUid, - li.mPackageName) == AppOpsManager.MODE_ALLOWED) { - clipboard.primaryClipListeners.getBroadcastItem(i) - .dispatchPrimaryClipChanged(); - } - } catch (RemoteException e) { - // The RemoteCallbackList will take care of removing - // the dead object for us. - } - } - } finally { - clipboard.primaryClipListeners.finishBroadcast(); - Binder.restoreCallingIdentity(ident); - } - } - } - - public ClipData getPrimaryClip(String pkg) { - synchronized (this) { - if (mAppOps.noteOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(), - pkg) != AppOpsManager.MODE_ALLOWED) { - return null; - } - addActiveOwnerLocked(Binder.getCallingUid(), pkg); - return getClipboard().primaryClip; - } - } - - public ClipDescription getPrimaryClipDescription(String callingPackage) { - synchronized (this) { - if (mAppOps.checkOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(), - callingPackage) != AppOpsManager.MODE_ALLOWED) { - return null; - } - PerUserClipboard clipboard = getClipboard(); - return clipboard.primaryClip != null ? clipboard.primaryClip.getDescription() : null; - } - } - - public boolean hasPrimaryClip(String callingPackage) { - synchronized (this) { - if (mAppOps.checkOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(), - callingPackage) != AppOpsManager.MODE_ALLOWED) { - return false; - } - return getClipboard().primaryClip != null; - } - } - - public void addPrimaryClipChangedListener(IOnPrimaryClipChangedListener listener, - String callingPackage) { - synchronized (this) { - getClipboard().primaryClipListeners.register(listener, - new ListenerInfo(Binder.getCallingUid(), callingPackage)); - } - } - - public void removePrimaryClipChangedListener(IOnPrimaryClipChangedListener listener) { - synchronized (this) { - getClipboard().primaryClipListeners.unregister(listener); - } - } - - public boolean hasClipboardText(String callingPackage) { - synchronized (this) { - if (mAppOps.checkOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(), - callingPackage) != AppOpsManager.MODE_ALLOWED) { - return false; - } - PerUserClipboard clipboard = getClipboard(); - if (clipboard.primaryClip != null) { - CharSequence text = clipboard.primaryClip.getItemAt(0).getText(); - return text != null && text.length() > 0; - } - return false; - } - } - - private final void checkUriOwnerLocked(Uri uri, int uid) { - if (!"content".equals(uri.getScheme())) { - return; - } - long ident = Binder.clearCallingIdentity(); - try { - // This will throw SecurityException for us. - mAm.checkGrantUriPermission(uid, null, uri, Intent.FLAG_GRANT_READ_URI_PERMISSION); - } catch (RemoteException e) { - } finally { - Binder.restoreCallingIdentity(ident); - } - } - - private final void checkItemOwnerLocked(ClipData.Item item, int uid) { - if (item.getUri() != null) { - checkUriOwnerLocked(item.getUri(), uid); - } - Intent intent = item.getIntent(); - if (intent != null && intent.getData() != null) { - checkUriOwnerLocked(intent.getData(), uid); - } - } - - private final void checkDataOwnerLocked(ClipData data, int uid) { - final int N = data.getItemCount(); - for (int i=0; i<N; i++) { - checkItemOwnerLocked(data.getItemAt(i), uid); - } - } - - private final void grantUriLocked(Uri uri, String pkg) { - long ident = Binder.clearCallingIdentity(); - try { - mAm.grantUriPermissionFromOwner(mPermissionOwner, Process.myUid(), pkg, uri, - Intent.FLAG_GRANT_READ_URI_PERMISSION); - } catch (RemoteException e) { - } finally { - Binder.restoreCallingIdentity(ident); - } - } - - private final void grantItemLocked(ClipData.Item item, String pkg) { - if (item.getUri() != null) { - grantUriLocked(item.getUri(), pkg); - } - Intent intent = item.getIntent(); - if (intent != null && intent.getData() != null) { - grantUriLocked(intent.getData(), pkg); - } - } - - private final void addActiveOwnerLocked(int uid, String pkg) { - final IPackageManager pm = AppGlobals.getPackageManager(); - final int targetUserHandle = UserHandle.getCallingUserId(); - final long oldIdentity = Binder.clearCallingIdentity(); - try { - PackageInfo pi = pm.getPackageInfo(pkg, 0, targetUserHandle); - if (pi == null) { - throw new IllegalArgumentException("Unknown package " + pkg); - } - if (!UserHandle.isSameApp(pi.applicationInfo.uid, uid)) { - throw new SecurityException("Calling uid " + uid - + " does not own package " + pkg); - } - } catch (RemoteException e) { - // Can't happen; the package manager is in the same process - } finally { - Binder.restoreCallingIdentity(oldIdentity); - } - PerUserClipboard clipboard = getClipboard(); - if (clipboard.primaryClip != null && !clipboard.activePermissionOwners.contains(pkg)) { - final int N = clipboard.primaryClip.getItemCount(); - for (int i=0; i<N; i++) { - grantItemLocked(clipboard.primaryClip.getItemAt(i), pkg); - } - clipboard.activePermissionOwners.add(pkg); - } - } - - private final void revokeUriLocked(Uri uri) { - long ident = Binder.clearCallingIdentity(); - try { - mAm.revokeUriPermissionFromOwner(mPermissionOwner, uri, - Intent.FLAG_GRANT_READ_URI_PERMISSION - | Intent.FLAG_GRANT_WRITE_URI_PERMISSION); - } catch (RemoteException e) { - } finally { - Binder.restoreCallingIdentity(ident); - } - } - - private final void revokeItemLocked(ClipData.Item item) { - if (item.getUri() != null) { - revokeUriLocked(item.getUri()); - } - Intent intent = item.getIntent(); - if (intent != null && intent.getData() != null) { - revokeUriLocked(intent.getData()); - } - } - - private final void clearActiveOwnersLocked() { - PerUserClipboard clipboard = getClipboard(); - clipboard.activePermissionOwners.clear(); - if (clipboard.primaryClip == null) { - return; - } - final int N = clipboard.primaryClip.getItemCount(); - for (int i=0; i<N; i++) { - revokeItemLocked(clipboard.primaryClip.getItemAt(i)); - } - } -} |