378 lines
14 KiB
Java
378 lines
14 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email.service;
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import android.app.Service;
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import android.content.Context;
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import android.content.Intent;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.content.res.XmlResourceParser;
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import android.os.Bundle;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.util.Log;
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import com.android.email.R;
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import com.android.emailcommon.Api;
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import com.android.emailcommon.Logging;
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import com.android.emailcommon.provider.Account;
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import com.android.emailcommon.provider.HostAuth;
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import com.android.emailcommon.service.EmailServiceProxy;
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import com.android.emailcommon.service.IEmailService;
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import com.android.emailcommon.service.IEmailServiceCallback;
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import com.android.emailcommon.service.SearchParams;
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import com.android.emailcommon.service.SyncWindow;
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import org.xmlpull.v1.XmlPullParserException;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* Utility functions for EmailService support.
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*/
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public class EmailServiceUtils {
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private static final ArrayList<EmailServiceInfo> sServiceList =
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new ArrayList<EmailServiceInfo>();
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/**
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* Starts an EmailService by protocol
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*/
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public static void startService(Context context, String protocol) {
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EmailServiceInfo info = getServiceInfo(context, protocol);
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if (info != null && info.intentAction != null) {
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context.startService(new Intent(info.intentAction));
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}
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}
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/**
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* Starts all remote services
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*/
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public static void startRemoteServices(Context context) {
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for (EmailServiceInfo info: getServiceInfoList(context)) {
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if (info.intentAction != null) {
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context.startService(new Intent(info.intentAction));
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}
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}
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}
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/**
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* Returns whether or not remote services are present on device
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*/
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public static boolean areRemoteServicesInstalled(Context context) {
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for (EmailServiceInfo info: getServiceInfoList(context)) {
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if (info.intentAction != null) {
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return true;
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}
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}
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return false;
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}
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/**
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* Starts all remote services
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*/
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public static void setRemoteServicesLogging(Context context, int debugBits) {
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for (EmailServiceInfo info: getServiceInfoList(context)) {
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if (info.intentAction != null) {
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EmailServiceProxy service =
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EmailServiceUtils.getService(context, null, info.protocol);
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if (service != null) {
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try {
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service.setLogging(debugBits);
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} catch (RemoteException e) {
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// Move along, nothing to see
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}
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}
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}
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}
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}
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/**
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* Determine if the EmailService is available
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*/
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public static boolean isServiceAvailable(Context context, String protocol) {
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EmailServiceInfo info = getServiceInfo(context, protocol);
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if (info == null) return false;
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if (info.klass != null) return true;
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return new EmailServiceProxy(context, info.intentAction, null).test();
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}
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/**
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* For a given account id, return a service proxy if applicable, or null.
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*
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* @param accountId the message of interest
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* @result service proxy, or null if n/a
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*/
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public static EmailServiceProxy getServiceForAccount(Context context,
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IEmailServiceCallback callback, long accountId) {
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return getService(context, callback, Account.getProtocol(context, accountId));
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}
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/**
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* Holder of service information (currently just name and class/intent); if there is a class
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* member, this is a (local, i.e. same process) service; otherwise, this is a remote service
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*/
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public static class EmailServiceInfo {
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public String protocol;
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public String name;
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public String accountType;
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Class<? extends Service> klass;
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String intentAction;
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public int port;
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public int portSsl;
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public boolean defaultSsl;
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public boolean offerTls;
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public boolean offerCerts;
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public boolean usesSmtp;
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public boolean offerLocalDeletes;
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public int defaultLocalDeletes;
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public boolean offerPrefix;
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public boolean usesAutodiscover;
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public boolean offerLookback;
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public int defaultLookback;
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public boolean syncChanges;
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public boolean syncContacts;
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public boolean syncCalendar;
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public boolean offerAttachmentPreload;
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public CharSequence[] syncIntervalStrings;
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public CharSequence[] syncIntervals;
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public int defaultSyncInterval;
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public String toString() {
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StringBuilder sb = new StringBuilder("Protocol: ");
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sb.append(protocol);
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sb.append(", ");
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sb.append(klass != null ? "Local" : "Remote");
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return sb.toString();
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}
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}
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public static EmailServiceProxy getService(Context context, IEmailServiceCallback callback,
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String protocol) {
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// Handle the degenerate case here (account might have been deleted)
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if (protocol == null) {
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Log.w(Logging.LOG_TAG, "Returning NullService for " + protocol);
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return new EmailServiceProxy(context, NullService.class, null);
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}
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EmailServiceInfo info = getServiceInfo(context, protocol);
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if (info.klass != null) {
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return new EmailServiceProxy(context, info.klass, callback);
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} else {
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return new EmailServiceProxy(context, info.intentAction, callback);
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}
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}
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public static EmailServiceInfo getServiceInfo(Context context, String protocol) {
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if (sServiceList.isEmpty()) {
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findServices(context);
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}
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for (EmailServiceInfo info: sServiceList) {
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if (info.protocol.equals(protocol)) {
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return info;
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}
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}
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return null;
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}
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public static List<EmailServiceInfo> getServiceInfoList(Context context) {
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if (sServiceList.isEmpty()) {
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findServices(context);
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}
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return sServiceList;
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}
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/**
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* Parse services.xml file to find our available email services
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*/
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@SuppressWarnings("unchecked")
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private static void findServices(Context context) {
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try {
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Resources res = context.getResources();
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XmlResourceParser xml = res.getXml(R.xml.services);
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int xmlEventType;
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// walk through senders.xml file.
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while ((xmlEventType = xml.next()) != XmlResourceParser.END_DOCUMENT) {
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if (xmlEventType == XmlResourceParser.START_TAG &&
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"emailservice".equals(xml.getName())) {
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EmailServiceInfo info = new EmailServiceInfo();
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TypedArray ta = res.obtainAttributes(xml, R.styleable.EmailServiceInfo);
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info.protocol = ta.getString(R.styleable.EmailServiceInfo_protocol);
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info.name = ta.getString(R.styleable.EmailServiceInfo_name);
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String klass = ta.getString(R.styleable.EmailServiceInfo_serviceClass);
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info.intentAction = ta.getString(R.styleable.EmailServiceInfo_intent);
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info.accountType = ta.getString(R.styleable.EmailServiceInfo_accountType);
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info.defaultSsl = ta.getBoolean(R.styleable.EmailServiceInfo_defaultSsl, false);
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info.port = ta.getInteger(R.styleable.EmailServiceInfo_port, 0);
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info.portSsl = ta.getInteger(R.styleable.EmailServiceInfo_portSsl, 0);
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info.offerTls = ta.getBoolean(R.styleable.EmailServiceInfo_offerTls, false);
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info.offerCerts = ta.getBoolean(R.styleable.EmailServiceInfo_offerCerts, false);
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info.offerLocalDeletes =
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ta.getBoolean(R.styleable.EmailServiceInfo_offerLocalDeletes, false);
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info.defaultLocalDeletes =
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ta.getInteger(R.styleable.EmailServiceInfo_defaultLocalDeletes,
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Account.DELETE_POLICY_ON_DELETE);
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info.offerPrefix =
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ta.getBoolean(R.styleable.EmailServiceInfo_offerPrefix, false);
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info.usesSmtp = ta.getBoolean(R.styleable.EmailServiceInfo_usesSmtp, false);
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info.usesAutodiscover =
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ta.getBoolean(R.styleable.EmailServiceInfo_usesAutodiscover, false);
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info.offerLookback =
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ta.getBoolean(R.styleable.EmailServiceInfo_offerLookback, false);
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info.defaultLookback =
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ta.getInteger(R.styleable.EmailServiceInfo_defaultLookback,
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SyncWindow.SYNC_WINDOW_3_DAYS);
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info.syncChanges =
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ta.getBoolean(R.styleable.EmailServiceInfo_syncChanges, false);
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info.syncContacts =
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ta.getBoolean(R.styleable.EmailServiceInfo_syncContacts, false);
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info.syncCalendar =
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ta.getBoolean(R.styleable.EmailServiceInfo_syncCalendar, false);
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info.offerAttachmentPreload =
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ta.getBoolean(R.styleable.EmailServiceInfo_offerAttachmentPreload, false);
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info.syncIntervalStrings =
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ta.getTextArray(R.styleable.EmailServiceInfo_syncIntervalStrings);
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info.syncIntervals =
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ta.getTextArray(R.styleable.EmailServiceInfo_syncIntervals);
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info.defaultSyncInterval =
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ta.getInteger(R.styleable.EmailServiceInfo_defaultSyncInterval, 15);
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// Must have either "class" (local) or "intent" (remote)
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if (klass != null) {
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try {
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info.klass = (Class<? extends Service>) Class.forName(klass);
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} catch (ClassNotFoundException e) {
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throw new IllegalStateException(
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"Class not found in service descriptor: " + klass);
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}
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}
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if (info.klass == null && info.intentAction == null) {
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throw new IllegalStateException(
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"No class or intent action specified in service descriptor");
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}
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if (info.klass != null && info.intentAction != null) {
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throw new IllegalStateException(
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"Both class and intent action specified in service descriptor");
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}
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sServiceList.add(info);
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}
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}
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} catch (XmlPullParserException e) {
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// ignore
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} catch (IOException e) {
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// ignore
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}
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}
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/**
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* A no-op service that can be returned for non-existent/null protocols
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*/
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class NullService implements IEmailService {
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@Override
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public IBinder asBinder() {
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return null;
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}
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@Override
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public Bundle validate(HostAuth hostauth) throws RemoteException {
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return null;
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}
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@Override
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public void startSync(long mailboxId, boolean userRequest) throws RemoteException {
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}
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@Override
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public void stopSync(long mailboxId) throws RemoteException {
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}
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@Override
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public void loadMore(long messageId) throws RemoteException {
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}
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@Override
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public void loadAttachment(long attachmentId, boolean background) throws RemoteException {
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}
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@Override
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public void updateFolderList(long accountId) throws RemoteException {
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}
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@Override
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public boolean createFolder(long accountId, String name) throws RemoteException {
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return false;
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}
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@Override
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public boolean deleteFolder(long accountId, String name) throws RemoteException {
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return false;
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}
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@Override
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public boolean renameFolder(long accountId, String oldName, String newName)
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throws RemoteException {
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return false;
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}
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@Override
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public void setCallback(IEmailServiceCallback cb) throws RemoteException {
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}
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@Override
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public void setLogging(int on) throws RemoteException {
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}
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@Override
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public void hostChanged(long accountId) throws RemoteException {
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}
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@Override
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public Bundle autoDiscover(String userName, String password) throws RemoteException {
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return null;
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}
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@Override
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public void sendMeetingResponse(long messageId, int response) throws RemoteException {
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}
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@Override
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public void deleteAccountPIMData(long accountId) throws RemoteException {
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}
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@Override
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public int getApiLevel() throws RemoteException {
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return Api.LEVEL;
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}
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@Override
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public int searchMessages(long accountId, SearchParams params, long destMailboxId)
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throws RemoteException {
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return 0;
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}
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@Override
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public void sendMail(long accountId) throws RemoteException {
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}
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@Override
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public int getCapabilities(long accountId) throws RemoteException {
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return 0;
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}
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}
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}
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