| /* |
| * Copyright (C) 2009 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.accounts; |
| |
| import android.content.pm.PackageManager; |
| import android.content.pm.RegisteredServicesCache; |
| import android.content.pm.ResolveInfo; |
| import android.content.pm.XmlSerializerAndParser; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.text.TextUtils; |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlSerializer; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * A cache of services that export the {@link IAccountAuthenticator} interface. This cache |
| * is built by interrogating the {@link PackageManager} and is updated as packages are added, |
| * removed and changed. The authenticators are referred to by their account type and |
| * are made available via the {@link RegisteredServicesCache#getServiceInfo} method. |
| * @hide |
| */ |
| /* package private */ class AccountAuthenticatorCache |
| extends RegisteredServicesCache<AuthenticatorDescription> { |
| private static final String TAG = "Account"; |
| private static final MySerializer sSerializer = new MySerializer(); |
| |
| public AccountAuthenticatorCache(Context context) { |
| super(context, AccountManager.ACTION_AUTHENTICATOR_INTENT, |
| AccountManager.AUTHENTICATOR_META_DATA_NAME, |
| AccountManager.AUTHENTICATOR_ATTRIBUTES_NAME, sSerializer); |
| } |
| |
| public AuthenticatorDescription parseServiceAttributes(Resources res, |
| String packageName, AttributeSet attrs) { |
| TypedArray sa = res.obtainAttributes(attrs, |
| com.android.internal.R.styleable.AccountAuthenticator); |
| try { |
| final String accountType = |
| sa.getString(com.android.internal.R.styleable.AccountAuthenticator_accountType); |
| final int labelId = sa.getResourceId( |
| com.android.internal.R.styleable.AccountAuthenticator_label, 0); |
| final int iconId = sa.getResourceId( |
| com.android.internal.R.styleable.AccountAuthenticator_icon, 0); |
| final int smallIconId = sa.getResourceId( |
| com.android.internal.R.styleable.AccountAuthenticator_smallIcon, 0); |
| final int prefId = sa.getResourceId( |
| com.android.internal.R.styleable.AccountAuthenticator_accountPreferences, 0); |
| |
| boolean customTokens = false; |
| try { |
| // In HC this will be an attribute in authenticator.xml, this is a workaround |
| // using meta-data to avoid changes to the API. |
| // If meta-data is absent the old behavior is preserved. |
| // Authenticator will know if AccountManager supports customTokens or not. |
| PackageManager pm = mContext.getPackageManager(); |
| List<ResolveInfo> resolveInfos = pm.queryIntentServices( |
| new Intent(AccountManager.ACTION_AUTHENTICATOR_INTENT), |
| PackageManager.GET_META_DATA); |
| for (ResolveInfo resolveInfo: resolveInfos) { |
| android.content.pm.ServiceInfo si = resolveInfo.serviceInfo; |
| if (!packageName.equals(si.packageName)) { |
| continue; |
| } |
| Object ctString = si.metaData.get(AccountManager.ACTION_AUTHENTICATOR_INTENT |
| + ".customTokens"); |
| if (ctString != null) { |
| customTokens = true; |
| } |
| } |
| } catch (Throwable t) { |
| // Protected against invalid data in meta or unexpected |
| // conditions - the authenticator will not have the new |
| // features. |
| Log.e(TAG, "Error getting customTokens metadata " + t); |
| } |
| |
| if (TextUtils.isEmpty(accountType)) { |
| return null; |
| } |
| return new AuthenticatorDescription(accountType, packageName, labelId, iconId, |
| smallIconId, prefId, customTokens); |
| } finally { |
| sa.recycle(); |
| } |
| } |
| |
| private static class MySerializer implements XmlSerializerAndParser<AuthenticatorDescription> { |
| public void writeAsXml(AuthenticatorDescription item, XmlSerializer out) |
| throws IOException { |
| out.attribute(null, "type", item.type); |
| } |
| |
| public AuthenticatorDescription createFromXml(XmlPullParser parser) |
| throws IOException, XmlPullParserException { |
| return AuthenticatorDescription.newKey(parser.getAttributeValue(null, "type")); |
| } |
| } |
| } |