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/*
* 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 com.android.email.mail.store;
import com.android.email.ExchangeUtils;
import com.android.email.mail.Store;
import com.android.email.mail.StoreSynchronizer;
import com.android.emailcommon.mail.Folder;
import com.android.emailcommon.mail.MessagingException;
import com.android.emailcommon.provider.EmailContent.Account;
import com.android.emailcommon.provider.EmailContent.HostAuth;
import com.android.emailcommon.service.EmailServiceProxy;
import com.android.emailcommon.service.IEmailService;
import android.content.Context;
import android.os.Bundle;
import android.os.RemoteException;
import android.text.TextUtils;
import java.util.HashMap;
/**
* Our Exchange service does not use the sender/store model. This class exists for exactly two
* purposes, (1) to provide a hook for checking account connections, and (2) to return
* "AccountSetupExchange.class" for getSettingActivityClass().
*/
public class ExchangeStore extends Store {
public static final String LOG_TAG = "ExchangeStore";
private final ExchangeTransport mTransport;
/**
* Static named constructor.
*/
public static Store newInstance(Account account, Context context,
PersistentDataCallbacks callbacks) throws MessagingException {
return new ExchangeStore(account, context, callbacks);
}
/**
* Creates a new store for the given account.
*/
private ExchangeStore(Account account, Context context, PersistentDataCallbacks callbacks)
throws MessagingException {
mTransport = ExchangeTransport.getInstance(account, context);
}
@Override
public Bundle checkSettings() throws MessagingException {
return mTransport.checkSettings();
}
@Override
public Folder getFolder(String name) {
return null;
}
@Override
public Folder[] updateFolders() {
return null;
}
/**
* Get class of SettingActivity for this Store class.
* @return Activity class that has class method actionEditIncomingSettings()
*/
@Override
public Class<? extends android.app.Activity> getSettingActivityClass() {
return com.android.email.activity.setup.AccountSetupExchange.class;
}
/**
* Get class of sync'er for this Store class. Because exchange Sync rules are so different
* than IMAP or POP3, it's likely that an Exchange implementation will need its own sync
* controller. If so, this function must return a non-null value.
*
* @return Message Sync controller, or null to use default
*/
@Override
public StoreSynchronizer getMessageSynchronizer() {
return null;
}
/**
* Inform MessagingController that this store requires message structures to be prefetched
* before it can fetch message bodies (this is due to EAS protocol restrictions.)
* @return always true for EAS
*/
@Override
public boolean requireStructurePrefetch() {
return true;
}
/**
* Inform MessagingController that messages sent via EAS will be placed in the Sent folder
* automatically (server-side) and don't need to be uploaded.
* @return always false for EAS (assuming server-side copy is supported)
*/
@Override
public boolean requireCopyMessageToSentFolder() {
return false;
}
public static class ExchangeTransport {
private final Context mContext;
private String mHost;
private String mDomain;
private int mPort;
private boolean mSsl;
private boolean mTSsl;
private String mUsername;
private String mPassword;
private static final HashMap<String, ExchangeTransport> sUriToInstanceMap =
new HashMap<String, ExchangeTransport>();
/**
* Public factory. The transport should be a singleton (per Uri)
*/
public synchronized static ExchangeTransport getInstance(Account account, Context context)
throws MessagingException {
final String storeKey = getStoreKey(context, account);
ExchangeTransport transport = sUriToInstanceMap.get(storeKey);
if (transport == null) {
transport = new ExchangeTransport(account, context);
sUriToInstanceMap.put(storeKey, transport);
}
return transport;
}
/**
* Private constructor - use public factory.
*/
private ExchangeTransport(Account account, Context context) throws MessagingException {
mContext = context.getApplicationContext();
setAccount(account);
}
private void setAccount(final Account account) throws MessagingException {
HostAuth recvAuth = account.getOrCreateHostAuthRecv(mContext);
if (recvAuth == null || !STORE_SCHEME_EAS.equalsIgnoreCase(recvAuth.mProtocol)) {
throw new MessagingException("Unsupported protocol");
}
mHost = recvAuth.mAddress;
if (mHost == null) {
throw new MessagingException("host not specified");
}
mDomain = recvAuth.mDomain;
if (!TextUtils.isEmpty(mDomain)) {
mDomain = mDomain.substring(1);
}
mPort = 80;
if ((recvAuth.mFlags & HostAuth.FLAG_SSL) != 0) {
mPort = 443;
mSsl = true;
}
mTSsl = ((recvAuth.mFlags & HostAuth.FLAG_TRUST_ALL) != 0);
String[] userInfoParts = recvAuth.getLogin();
if (userInfoParts != null) {
mUsername = userInfoParts[0];
mPassword = userInfoParts[1];
if (TextUtils.isEmpty(mPassword)) {
throw new MessagingException("user name and password not specified");
}
} else {
throw new MessagingException("user information not specifed");
}
}
/**
* Here's where we check the settings for EAS.
* @throws MessagingException if we can't authenticate the account
*/
public Bundle checkSettings() throws MessagingException {
try {
IEmailService svc = ExchangeUtils.getExchangeService(mContext, null);
// Use a longer timeout for the validate command. Note that the instanceof check
// shouldn't be necessary; we'll do it anyway, just to be safe
if (svc instanceof EmailServiceProxy) {
((EmailServiceProxy)svc).setTimeout(90);
}
return svc.validate("eas", mHost, mUsername, mPassword, mPort, mSsl, mTSsl);
} catch (RemoteException e) {
throw new MessagingException("Call to validate generated an exception", e);
}
}
}
/**
* We handle AutoDiscover for Exchange 2007 (and later) here, wrapping the EmailService call.
* The service call returns a HostAuth and we return null if there was a service issue
*/
@Override
public Bundle autoDiscover(Context context, String username, String password) {
try {
return ExchangeUtils.getExchangeService(context, null).autoDiscover(username, password);
} catch (RemoteException e) {
return null;
}
}
}
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