| /* |
| * Copyright (C) 2016 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 android.service.autofill; |
| |
| import android.Manifest; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.AppGlobals; |
| import android.content.ComponentName; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ServiceInfo; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.content.res.XmlResourceParser; |
| import android.os.RemoteException; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.Xml; |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import com.android.internal.R; |
| |
| import java.io.IOException; |
| |
| /** |
| * {@link ServiceInfo} and meta-data about an {@link AutofillService}. |
| * |
| * @hide |
| */ |
| public final class AutofillServiceInfo { |
| private static final String TAG = "AutofillServiceInfo"; |
| |
| private static ServiceInfo getServiceInfoOrThrow(ComponentName comp, int userHandle) |
| throws PackageManager.NameNotFoundException { |
| try { |
| ServiceInfo si = AppGlobals.getPackageManager().getServiceInfo( |
| comp, |
| PackageManager.GET_META_DATA, |
| userHandle); |
| if (si != null) { |
| return si; |
| } |
| } catch (RemoteException e) { |
| } |
| throw new PackageManager.NameNotFoundException(comp.toString()); |
| } |
| |
| @NonNull |
| private final ServiceInfo mServiceInfo; |
| |
| @Nullable |
| private final String mSettingsActivity; |
| |
| public AutofillServiceInfo(PackageManager pm, ComponentName comp, int userHandle) |
| throws PackageManager.NameNotFoundException { |
| this(pm, getServiceInfoOrThrow(comp, userHandle)); |
| } |
| |
| public AutofillServiceInfo(PackageManager pm, ServiceInfo si) { |
| mServiceInfo = si; |
| final TypedArray metaDataArray = getMetaDataArray(pm, si); |
| if (metaDataArray != null) { |
| mSettingsActivity = metaDataArray |
| .getString(R.styleable.AutofillService_settingsActivity); |
| metaDataArray.recycle(); |
| } else { |
| mSettingsActivity = null; |
| } |
| } |
| |
| /** |
| * Gets the meta-data as a TypedArray, or null if not provided, or throws if invalid. |
| */ |
| @Nullable |
| private static TypedArray getMetaDataArray(PackageManager pm, ServiceInfo si) { |
| // Check for permissions. |
| if (!Manifest.permission.BIND_AUTOFILL.equals(si.permission)) { |
| Log.e(TAG, "Service does not require permission " + Manifest.permission.BIND_AUTOFILL); |
| return null; |
| } |
| |
| // Get the AutoFill metadata, if declared. |
| XmlResourceParser parser = si.loadXmlMetaData(pm, AutofillService.SERVICE_META_DATA); |
| if (parser == null) { |
| return null; |
| } |
| |
| // Parse service info and get the <autofill-service> tag as an AttributeSet. |
| AttributeSet attrs; |
| try { |
| // Move the XML parser to the first tag. |
| try { |
| int type; |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| && type != XmlPullParser.START_TAG) { |
| } |
| } catch (XmlPullParserException | IOException e) { |
| Log.e(TAG, "Error parsing auto fill service meta-data", e); |
| return null; |
| } |
| |
| if (!"autofill-service".equals(parser.getName())) { |
| Log.e(TAG, "Meta-data does not start with autofill-service tag"); |
| return null; |
| } |
| attrs = Xml.asAttributeSet(parser); |
| |
| // Get resources required to read the AttributeSet. |
| Resources res; |
| try { |
| res = pm.getResourcesForApplication(si.applicationInfo); |
| } catch (PackageManager.NameNotFoundException e) { |
| Log.e(TAG, "Error getting application resources", e); |
| return null; |
| } |
| |
| return res.obtainAttributes(attrs, R.styleable.AutofillService); |
| } finally { |
| parser.close(); |
| } |
| } |
| |
| public ServiceInfo getServiceInfo() { |
| return mServiceInfo; |
| } |
| |
| @Nullable |
| public String getSettingsActivity() { |
| return mSettingsActivity; |
| } |
| } |