| /* |
| * Copyright (C) 2018 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.autofill; |
| |
| import static com.android.server.autofill.Helper.sDebug; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.UserIdInt; |
| import android.app.AppGlobals; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ServiceInfo; |
| import android.os.Bundle; |
| import android.os.IBinder; |
| import android.os.ICancellationSignal; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.service.autofill.augmented.AugmentedAutofillService; |
| import android.service.autofill.augmented.IAugmentedAutofillService; |
| import android.service.autofill.augmented.IFillCallback; |
| import android.util.Pair; |
| import android.util.Slog; |
| import android.view.autofill.AutofillId; |
| import android.view.autofill.AutofillManager; |
| import android.view.autofill.AutofillValue; |
| import android.view.autofill.IAutoFillManagerClient; |
| |
| import com.android.internal.infra.AbstractSinglePendingRequestRemoteService; |
| import com.android.internal.os.IResultReceiver; |
| |
| final class RemoteAugmentedAutofillService |
| extends AbstractSinglePendingRequestRemoteService<RemoteAugmentedAutofillService, |
| IAugmentedAutofillService> { |
| |
| private static final String TAG = RemoteAugmentedAutofillService.class.getSimpleName(); |
| |
| private final int mIdleUnbindTimeoutMs; |
| private final int mRequestTimeoutMs; |
| |
| RemoteAugmentedAutofillService(Context context, ComponentName serviceName, |
| int userId, RemoteAugmentedAutofillServiceCallbacks callbacks, |
| boolean bindInstantServiceAllowed, boolean verbose, int idleUnbindTimeoutMs, |
| int requestTimeoutMs) { |
| super(context, AugmentedAutofillService.SERVICE_INTERFACE, serviceName, userId, callbacks, |
| context.getMainThreadHandler(), bindInstantServiceAllowed, verbose); |
| mIdleUnbindTimeoutMs = idleUnbindTimeoutMs; |
| mRequestTimeoutMs = requestTimeoutMs; |
| |
| // Bind right away. |
| scheduleBind(); |
| } |
| |
| @Nullable |
| static Pair<ServiceInfo, ComponentName> getComponentName(@NonNull String componentName, |
| @UserIdInt int userId, boolean isTemporary) { |
| int flags = PackageManager.GET_META_DATA; |
| if (!isTemporary) { |
| flags |= PackageManager.MATCH_SYSTEM_ONLY; |
| } |
| |
| final ComponentName serviceComponent; |
| ServiceInfo serviceInfo = null; |
| try { |
| serviceComponent = ComponentName.unflattenFromString(componentName); |
| serviceInfo = AppGlobals.getPackageManager().getServiceInfo(serviceComponent, flags, |
| userId); |
| if (serviceInfo == null) { |
| Slog.e(TAG, "Bad service name for flags " + flags + ": " + componentName); |
| return null; |
| } |
| } catch (Exception e) { |
| Slog.e(TAG, "Error getting service info for '" + componentName + "': " + e); |
| return null; |
| } |
| return new Pair<>(serviceInfo, serviceComponent); |
| } |
| |
| @Override // from RemoteService |
| protected void handleOnConnectedStateChanged(boolean state) { |
| if (state && getTimeoutIdleBindMillis() != PERMANENT_BOUND_TIMEOUT_MS) { |
| scheduleUnbind(); |
| } |
| try { |
| if (state) { |
| mService.onConnected(); |
| } else { |
| mService.onDisconnected(); |
| } |
| } catch (Exception e) { |
| Slog.w(mTag, "Exception calling onConnectedStateChanged(" + state + "): " + e); |
| } |
| } |
| |
| @Override // from AbstractRemoteService |
| protected IAugmentedAutofillService getServiceInterface(IBinder service) { |
| return IAugmentedAutofillService.Stub.asInterface(service); |
| } |
| |
| @Override // from AbstractRemoteService |
| protected long getTimeoutIdleBindMillis() { |
| return mIdleUnbindTimeoutMs; |
| } |
| |
| @Override // from AbstractRemoteService |
| protected long getRemoteRequestMillis() { |
| return mRequestTimeoutMs; |
| } |
| |
| /** |
| * Called by {@link Session} to request augmented autofill. |
| */ |
| public void onRequestAutofillLocked(int sessionId, @NonNull IAutoFillManagerClient client, |
| int taskId, @NonNull ComponentName activityComponent, @NonNull AutofillId focusedId, |
| @Nullable AutofillValue focusedValue) { |
| scheduleRequest(new PendingAutofillRequest(this, sessionId, client, taskId, |
| activityComponent, focusedId, focusedValue)); |
| } |
| |
| @Override |
| public String toString() { |
| return "RemoteAugmentedAutofillService[" |
| + ComponentName.flattenToShortString(getComponentName()) + "]"; |
| } |
| |
| /** |
| * Called by {@link Session} when it's time to destroy all augmented autofill requests. |
| */ |
| public void onDestroyAutofillWindowsRequest() { |
| scheduleAsyncRequest((s) -> s.onDestroyAllFillWindowsRequest()); |
| } |
| |
| private void dispatchOnFillTimeout(@NonNull ICancellationSignal cancellation) { |
| mHandler.post(() -> { |
| try { |
| cancellation.cancel(); |
| } catch (RemoteException e) { |
| Slog.w(mTag, "Error calling cancellation signal: " + e); |
| } |
| }); |
| } |
| |
| // TODO(b/123100811): inline into PendingAutofillRequest if it doesn't have any other subclass |
| private abstract static class MyPendingRequest |
| extends PendingRequest<RemoteAugmentedAutofillService, IAugmentedAutofillService> { |
| protected final int mSessionId; |
| |
| private MyPendingRequest(@NonNull RemoteAugmentedAutofillService service, int sessionId) { |
| super(service); |
| mSessionId = sessionId; |
| } |
| } |
| |
| private static final class PendingAutofillRequest extends MyPendingRequest { |
| private final @NonNull AutofillId mFocusedId; |
| private final @Nullable AutofillValue mFocusedValue; |
| private final @NonNull IAutoFillManagerClient mClient; |
| private final @NonNull ComponentName mActivityComponent; |
| private final int mTaskId; |
| private final long mRequestTime = SystemClock.elapsedRealtime(); |
| private final @NonNull IFillCallback mCallback; |
| private ICancellationSignal mCancellation; |
| |
| protected PendingAutofillRequest(@NonNull RemoteAugmentedAutofillService service, |
| int sessionId, @NonNull IAutoFillManagerClient client, int taskId, |
| @NonNull ComponentName activityComponent, @NonNull AutofillId focusedId, |
| @Nullable AutofillValue focusedValue) { |
| super(service, sessionId); |
| mClient = client; |
| mTaskId = taskId; |
| mActivityComponent = activityComponent; |
| mFocusedId = focusedId; |
| mFocusedValue = focusedValue; |
| mCallback = new IFillCallback.Stub() { |
| @Override |
| public void onSuccess() { |
| if (!finish()) return; |
| // NOTE: so far we don't need notify RemoteAugmentedAutofillServiceCallbacks |
| } |
| |
| @Override |
| public void onCancellable(ICancellationSignal cancellation) { |
| synchronized (mLock) { |
| final boolean cancelled; |
| synchronized (mLock) { |
| mCancellation = cancellation; |
| cancelled = isCancelledLocked(); |
| } |
| if (cancelled) { |
| try { |
| cancellation.cancel(); |
| } catch (RemoteException e) { |
| Slog.e(mTag, "Error requesting a cancellation", e); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public boolean isCompleted() { |
| return isRequestCompleted(); |
| } |
| |
| @Override |
| public void cancel() { |
| synchronized (mLock) { |
| final boolean cancelled = isCancelledLocked(); |
| final ICancellationSignal cancellation = mCancellation; |
| if (!cancelled) { |
| try { |
| cancellation.cancel(); |
| } catch (RemoteException e) { |
| Slog.e(mTag, "Error requesting a cancellation", e); |
| } |
| } |
| } |
| } |
| }; |
| } |
| |
| @Override |
| public void run() { |
| synchronized (mLock) { |
| if (isCancelledLocked()) { |
| if (sDebug) Slog.d(mTag, "run() called after canceled"); |
| return; |
| } |
| } |
| final RemoteAugmentedAutofillService remoteService = getService(); |
| if (remoteService == null) return; |
| |
| final IResultReceiver receiver = new IResultReceiver.Stub() { |
| |
| @Override |
| public void send(int resultCode, Bundle resultData) throws RemoteException { |
| final IBinder realClient = resultData |
| .getBinder(AutofillManager.EXTRA_AUGMENTED_AUTOFILL_CLIENT); |
| remoteService.mService.onFillRequest(mSessionId, realClient, mTaskId, |
| mActivityComponent, mFocusedId, mFocusedValue, mRequestTime, mCallback); |
| } |
| }; |
| |
| // TODO(b/122728762): set cancellation signal, timeout (from both mClient and service), |
| // cache IAugmentedAutofillManagerClient reference, etc... |
| try { |
| mClient.getAugmentedAutofillClient(receiver); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "exception handling getAugmentedAutofillClient() for " |
| + mSessionId + ": " + e); |
| finish(); |
| } |
| } |
| |
| @Override |
| protected void onTimeout(RemoteAugmentedAutofillService remoteService) { |
| // TODO(b/122858578): must update the logged AUTOFILL_AUGMENTED_REQUEST with the |
| // timeout |
| Slog.w(TAG, "PendingAutofillRequest timed out (" + remoteService.mRequestTimeoutMs |
| + "ms) for " + remoteService); |
| // NOTE: so far we don't need notify RemoteAugmentedAutofillServiceCallbacks |
| final ICancellationSignal cancellation; |
| synchronized (mLock) { |
| cancellation = mCancellation; |
| } |
| if (cancellation != null) { |
| remoteService.dispatchOnFillTimeout(cancellation); |
| } |
| finish(); |
| } |
| |
| @Override |
| public boolean cancel() { |
| if (!super.cancel()) return false; |
| |
| final ICancellationSignal cancellation; |
| synchronized (mLock) { |
| cancellation = mCancellation; |
| } |
| if (cancellation != null) { |
| try { |
| cancellation.cancel(); |
| } catch (RemoteException e) { |
| Slog.e(mTag, "Error cancelling a fill request", e); |
| } |
| } |
| return true; |
| } |
| } |
| |
| public interface RemoteAugmentedAutofillServiceCallbacks |
| extends VultureCallback<RemoteAugmentedAutofillService> { |
| // NOTE: so far we don't need to notify the callback implementation (an inner class on |
| // AutofillManagerServiceImpl) of the request results (success, timeouts, etc..), so this |
| // callback interface is empty. |
| } |
| } |