/*
* Copyright (C) 2008 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.activity.setup;
import com.android.email.Email;
import com.android.email.R;
import com.android.email.mail.AuthenticationFailedException;
import com.android.email.mail.CertificateValidationException;
import com.android.email.mail.MessagingException;
import com.android.email.mail.Sender;
import com.android.email.mail.Store;
import com.android.email.provider.EmailContent;
import com.android.email.service.EmailServiceProxy;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Process;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
/**
* Checks the given settings to make sure that they can be used to send and
* receive mail.
*
* XXX NOTE: The manifest for this activity has it ignore config changes, because
* it doesn't correctly deal with restarting while its thread is running.
* Do not attempt to define orientation-specific resources, they won't be loaded.
*/
public class AccountSetupCheckSettings extends Activity implements OnClickListener {
// If true, returns immediately as if account was OK
private static final boolean DBG_SKIP_CHECK_OK = false; // DO NOT CHECK IN WHILE TRUE
// If true, returns immediately as if account was not OK
private static final boolean DBG_SKIP_CHECK_ERR = false; // DO NOT CHECK IN WHILE TRUE
// If true, performs real check(s), but always returns fixed OK result
private static final boolean DBG_FORCE_RESULT_OK = false; // DO NOT CHECK IN WHILE TRUE
private static final String EXTRA_ACCOUNT = "account";
private static final String EXTRA_CHECK_INCOMING = "checkIncoming";
private static final String EXTRA_CHECK_OUTGOING = "checkOutgoing";
private static final String EXTRA_AUTO_DISCOVER = "autoDiscover";
private static final String EXTRA_AUTO_DISCOVER_USERNAME = "userName";
private static final String EXTRA_AUTO_DISCOVER_PASSWORD = "password";
public static final int REQUEST_CODE_VALIDATE = 1;
public static final int REQUEST_CODE_AUTO_DISCOVER = 2;
// We'll define special result codes for certain types of connection results
public static final int RESULT_AUTO_DISCOVER_AUTH_FAILED = Activity.RESULT_FIRST_USER;
public static final int RESULT_SECURITY_REQUIRED_USER_CANCEL = Activity.RESULT_FIRST_USER + 1;
private Handler mHandler = new Handler();
private ProgressBar mProgressBar;
private TextView mMessageView;
private EmailContent.Account mAccount;
private boolean mCheckIncoming;
private boolean mCheckOutgoing;
private boolean mAutoDiscover;
private boolean mCanceled;
private boolean mDestroyed;
public static void actionValidateSettings(Activity fromActivity, EmailContent.Account account,
boolean checkIncoming, boolean checkOutgoing) {
Intent i = new Intent(fromActivity, AccountSetupCheckSettings.class);
i.putExtra(EXTRA_ACCOUNT, account);
i.putExtra(EXTRA_CHECK_INCOMING, checkIncoming);
i.putExtra(EXTRA_CHECK_OUTGOING, checkOutgoing);
fromActivity.startActivityForResult(i, REQUEST_CODE_VALIDATE);
}
public static void actionAutoDiscover(Activity fromActivity, EmailContent.Account account,
String userName, String password) {
Intent i = new Intent(fromActivity, AccountSetupCheckSettings.class);
i.putExtra(EXTRA_ACCOUNT, account);
i.putExtra(EXTRA_AUTO_DISCOVER, true);
i.putExtra(EXTRA_AUTO_DISCOVER_USERNAME, userName);
i.putExtra(EXTRA_AUTO_DISCOVER_PASSWORD, password);
fromActivity.startActivityForResult(i, REQUEST_CODE_AUTO_DISCOVER);
}
/**
* We create this simple class so that showErrorDialog can differentiate between a regular
* auth error and an auth error during the autodiscover sequence and respond appropriately
*/
private class AutoDiscoverAuthenticationException extends AuthenticationFailedException {
private static final long serialVersionUID = 1L;
public AutoDiscoverAuthenticationException(String message) {
super(message);
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.account_setup_check_settings);
mMessageView = (TextView)findViewById(R.id.message);
mProgressBar = (ProgressBar)findViewById(R.id.progress);
((Button)findViewById(R.id.cancel)).setOnClickListener(this);
setMessage(R.string.account_setup_check_settings_retr_info_msg);
mProgressBar.setIndeterminate(true);
// For debugging UI only, force a true or false result - don't actually try connection
if (DBG_SKIP_CHECK_OK || DBG_SKIP_CHECK_ERR) {
setResult(DBG_SKIP_CHECK_OK ? RESULT_OK : RESULT_CANCELED);
finish();
return;
}
final Intent intent = getIntent();
mAccount = (EmailContent.Account)intent.getParcelableExtra(EXTRA_ACCOUNT);
mCheckIncoming = intent.getBooleanExtra(EXTRA_CHECK_INCOMING, false);
mCheckOutgoing = intent.getBooleanExtra(EXTRA_CHECK_OUTGOING, false);
mAutoDiscover = intent.getBooleanExtra(EXTRA_AUTO_DISCOVER, false);
new Thread() {
@Override
public void run() {
Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
try {
if (mDestroyed) {
return;
}
if (mCanceled) {
finish();
return;
}
if (mAutoDiscover) {
String userName = intent.getStringExtra(EXTRA_AUTO_DISCOVER_USERNAME);
String password = intent.getStringExtra(EXTRA_AUTO_DISCOVER_PASSWORD);
Log.d(Email.LOG_TAG, "Begin auto-discover for " + userName);
Store store = Store.getInstance(
mAccount.getStoreUri(AccountSetupCheckSettings.this),
getApplication(), null);
Bundle result = store.autoDiscover(AccountSetupCheckSettings.this,
userName, password);
// Result will be null if there was a remote exception
// Otherwise, we can check the exception code and handle auth failed
// Other errors will be ignored, and the user will be taken to manual
// setup
if (result != null) {
int errorCode =
result.getInt(EmailServiceProxy.AUTO_DISCOVER_BUNDLE_ERROR_CODE);
if (errorCode == MessagingException.AUTHENTICATION_FAILED) {
throw new AutoDiscoverAuthenticationException(null);
} else if (errorCode != MessagingException.NO_ERROR) {
setResult(RESULT_OK);
finish();
}
// The success case is here
Intent resultIntent = new Intent();
resultIntent.putExtra("HostAuth", result.getParcelable(
EmailServiceProxy.AUTO_DISCOVER_BUNDLE_HOST_AUTH));
setResult(RESULT_OK, resultIntent);
finish();
// auto-discover is never combined with other ops, so exit now
return;
}
}
if (mDestroyed) {
return;
}
if (mCanceled) {
finish();
return;
}
if (mCheckIncoming) {
Log.d(Email.LOG_TAG, "Begin check of incoming email settings");
setMessage(R.string.account_setup_check_settings_check_incoming_msg);
Store store = Store.getInstance(
mAccount.getStoreUri(AccountSetupCheckSettings.this),
getApplication(), null);
store.checkSettings();
}
if (mDestroyed) {
return;
}
if (mCanceled) {
finish();
return;
}
if (mCheckOutgoing) {
Log.d(Email.LOG_TAG, "Begin check of outgoing email settings");
setMessage(R.string.account_setup_check_settings_check_outgoing_msg);
Sender sender = Sender.getInstance(getApplication(),
mAccount.getSenderUri(AccountSetupCheckSettings.this));
sender.close();
sender.open();
sender.close();
}
if (mDestroyed) {
return;
}
setResult(RESULT_OK);
finish();
} catch (final AuthenticationFailedException afe) {
// Could be two separate blocks (one for AutoDiscover) but this way we save
// some code
String message = afe.getMessage();
int id = (message == null)
? R.string.account_setup_failed_dlg_auth_message
: R.string.account_setup_failed_dlg_auth_message_fmt;
showErrorDialog(afe instanceof AutoDiscoverAuthenticationException,
id, message);
} catch (final CertificateValidationException cve) {
String message = cve.getMessage();
int id = (message == null)
? R.string.account_setup_failed_dlg_certificate_message
: R.string.account_setup_failed_dlg_certificate_message_fmt;
showErrorDialog(false, id, message);
} catch (final MessagingException me) {
int exceptionType = me.getExceptionType();
// Check for non-fatal errors first
if (exceptionType == MessagingException.SECURITY_POLICIES_REQUIRED) {
showSecurityRequiredDialog();
return;
}
// Handle fatal errors
int id;
String message = me.getMessage();
switch (exceptionType) {
case MessagingException.IOERROR:
id = R.string.account_setup_failed_ioerror;
break;
case MessagingException.TLS_REQUIRED:
id = R.string.account_setup_failed_tls_required;
break;
case MessagingException.AUTH_REQUIRED:
id = R.string.account_setup_failed_auth_required;
break;
case MessagingException.SECURITY_POLICIES_UNSUPPORTED:
id = R.string.account_setup_failed_security_policies_unsupported;
break;
case MessagingException.GENERAL_SECURITY:
id = R.string.account_setup_failed_security;
break;
default:
id = (message == null)
? R.string.account_setup_failed_dlg_server_message
: R.string.account_setup_failed_dlg_server_message_fmt;
break;
}
showErrorDialog(false, id, message);
}
}
}.start();
}
@Override
public void onDestroy() {
super.onDestroy();
mDestroyed = true;
mCanceled = true;
}
private void setMessage(final int resId) {
mHandler.post(new Runnable() {
public void run() {
if (mDestroyed) {
return;
}
mMessageView.setText(getString(resId));
}
});
}
/**
* The first argument here indicates whether we return an OK result or a cancelled result
* An OK result is used by Exchange to indicate a failed authentication via AutoDiscover
* In that case, we'll end up returning to the AccountSetupBasic screen
*/
private void showErrorDialog(final boolean autoDiscoverAuthException, final int msgResId,
final Object... args) {
mHandler.post(new Runnable() {
public void run() {
if (mDestroyed) {
return;
}
mProgressBar.setIndeterminate(false);
new AlertDialog.Builder(AccountSetupCheckSettings.this)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle(getString(R.string.account_setup_failed_dlg_title))
.setMessage(getString(msgResId, args))
.setCancelable(true)
.setPositiveButton(
getString(R.string.account_setup_failed_dlg_edit_details_action),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
if (autoDiscoverAuthException) {
setResult(RESULT_AUTO_DISCOVER_AUTH_FAILED);
} else if (DBG_FORCE_RESULT_OK) {
setResult(RESULT_OK);
}
finish();
}
})
.show();
}
});
}
/**
* Display a dialog asking the user if they are willing to accept control by the remote
* server. This converts the MessagingException.SECURITY_POLICIES_REQUIRED exception into an
* Activity result of RESULT_OK, thus hiding the exception from the caller entirely.
*
* TODO: Perhaps use stronger button names than "OK" and "Cancel" (e.g. "Allow" / "Deny")
*/
private void showSecurityRequiredDialog() {
mHandler.post(new Runnable() {
public void run() {
if (mDestroyed) {
return;
}
mProgressBar.setIndeterminate(false);
String host = mAccount.mHostAuthRecv.mAddress;
Object[] args = new String[] { host };
new AlertDialog.Builder(AccountSetupCheckSettings.this)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle(getString(R.string.account_setup_security_required_title))
.setMessage(getString(
R.string.account_setup_security_policies_required_fmt, args))
.setCancelable(true)
.setPositiveButton(
getString(R.string.okay_action),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
setResult(RESULT_OK);
finish();
}
})
.setNegativeButton(
getString(R.string.cancel_action),
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
setResult(RESULT_SECURITY_REQUIRED_USER_CANCEL);
finish();
}
})
.show();
}
});
}
private void onCancel() {
mCanceled = true;
setMessage(R.string.account_setup_check_settings_canceling_msg);
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.cancel:
onCancel();
break;
}
}
}