/*
* Copyright 2012 GitHub Inc.
*
* 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.github.mobile.accounts;
import static android.accounts.AccountManager.KEY_ACCOUNT_NAME;
import static android.accounts.AccountManager.KEY_ACCOUNT_TYPE;
import static android.accounts.AccountManager.KEY_AUTHTOKEN;
import static android.accounts.AccountManager.KEY_BOOLEAN_RESULT;
import static android.content.Intent.ACTION_VIEW;
import static android.content.Intent.CATEGORY_BROWSABLE;
import static android.text.InputType.TYPE_CLASS_TEXT;
import static android.text.InputType.TYPE_TEXT_VARIATION_PASSWORD;
import static android.text.InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
import static android.view.KeyEvent.ACTION_DOWN;
import static android.view.KeyEvent.KEYCODE_ENTER;
import static android.view.inputmethod.EditorInfo.IME_ACTION_DONE;
import static com.github.mobile.accounts.AccountConstants.*;
import static com.github.mobile.RequestCodes.OTP_CODE_ENTER;
import static com.github.mobile.accounts.TwoFactorAuthActivity.PARAM_EXCEPTION;
import static com.github.mobile.accounts.TwoFactorAuthClient.TWO_FACTOR_AUTH_TYPE_SMS;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.text.Html;
import android.text.TextUtils;
import android.text.TextWatcher;
import android.text.method.LinkMovementMethod;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuItem;
import com.github.kevinsawicki.wishlist.ViewFinder;
import com.github.mobile.R.id;
import com.github.mobile.R.layout;
import com.github.mobile.R.menu;
import com.github.mobile.R.string;
import com.github.mobile.persistence.AccountDataManager;
import com.github.mobile.ui.LightProgressDialog;
import com.github.mobile.ui.TextWatcherAdapter;
import com.github.mobile.util.ToastUtils;
import com.github.rtyley.android.sherlock.roboguice.activity.RoboSherlockAccountAuthenticatorActivity;
import com.google.inject.Inject;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.egit.github.core.User;
import org.eclipse.egit.github.core.client.GitHubClient;
import org.eclipse.egit.github.core.service.OAuthService;
import org.eclipse.egit.github.core.service.UserService;
import roboguice.util.RoboAsyncTask;
/**
* Activity to login
*/
public class LoginActivity extends RoboSherlockAccountAuthenticatorActivity {
/**
* Auth token type parameter
*/
public static final String PARAM_AUTHTOKEN_TYPE = "authtokenType";
/**
* Initial user name
*/
public static final String PARAM_USERNAME = "username";
private static final String PARAM_CONFIRMCREDENTIALS = "confirmCredentials";
private static final String TAG = "LoginActivity";
/**
* Sync period in seconds, currently every 8 hours
*/
private static final long SYNC_PERIOD = 8L * 60L * 60L;
public static void configureSyncFor(Account account) {
Log.d(TAG, "Configuring account sync");
ContentResolver.setIsSyncable(account, PROVIDER_AUTHORITY, 1);
ContentResolver.setSyncAutomatically(account, PROVIDER_AUTHORITY, true);
ContentResolver.addPeriodicSync(account, PROVIDER_AUTHORITY,
new Bundle(), SYNC_PERIOD);
}
public static class AccountLoader extends
AuthenticatedUserTask<List<User>> {
@Inject
private AccountDataManager cache;
protected AccountLoader(Context context) {
super(context);
}
@Override
protected List<User> run(Account account) throws Exception {
return cache.getOrgs(true);
}
}
private AccountManager accountManager;
private AutoCompleteTextView loginText;
private EditText passwordText;
private RoboAsyncTask<User> authenticationTask;
private String authTokenType;
private MenuItem loginItem;
/**
* If set we are just checking that the user knows their credentials; this
* doesn't cause the user's password to be changed on the device.
*/
private Boolean confirmCredentials = false;
private String password;
/**
* Was the original caller asking for an entirely new account?
*/
protected boolean requestNewAccount = false;
private String username;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(layout.login);
accountManager = AccountManager.get(this);
ViewFinder finder = new ViewFinder(this);
loginText = finder.find(id.et_login);
passwordText = finder.find(id.et_password);
final Intent intent = getIntent();
username = intent.getStringExtra(PARAM_USERNAME);
authTokenType = intent.getStringExtra(PARAM_AUTHTOKEN_TYPE);
requestNewAccount = username == null;
confirmCredentials = intent.getBooleanExtra(PARAM_CONFIRMCREDENTIALS,
false);
TextView signupText = finder.find(id.tv_signup);
signupText.setMovementMethod(LinkMovementMethod.getInstance());
signupText.setText(Html.fromHtml(getString(string.signup_link)));
if (!TextUtils.isEmpty(username)) {
loginText.setText(username);
loginText.setEnabled(false);
loginText.setFocusable(false);
}
TextWatcher watcher = new TextWatcherAdapter() {
@Override
public void afterTextChanged(Editable gitDirEditText) {
updateEnablement();
}
};
loginText.addTextChangedListener(watcher);
passwordText.addTextChangedListener(watcher);
passwordText.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event != null && ACTION_DOWN == event.getAction()
&& keyCode == KEYCODE_ENTER && loginEnabled()) {
handleLogin();
return true;
} else
return false;
}
});
passwordText.setOnEditorActionListener(new OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId,
KeyEvent event) {
if (actionId == IME_ACTION_DONE && loginEnabled()) {
handleLogin();
return true;
}
return false;
}
});
CheckBox showPassword = finder.find(id.cb_show_password);
showPassword.setOnCheckedChangeListener(new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
int type = TYPE_CLASS_TEXT;
if (isChecked)
type |= TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
else
type |= TYPE_TEXT_VARIATION_PASSWORD;
int selection = passwordText.getSelectionStart();
passwordText.setInputType(type);
if (selection > 0)
passwordText.setSelection(selection);
}
});
loginText.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_dropdown_item_1line,
getEmailAddresses()));
}
@Override
protected void onResume() {
super.onResume();
// Finish task if valid account exists
if (requestNewAccount) {
Account existing = AccountUtils.getPasswordAccessibleAccount(this);
if (existing != null && !TextUtils.isEmpty(existing.name)) {
String password = AccountManager.get(this)
.getPassword(existing);
if (!TextUtils.isEmpty(password))
finishLogin(existing.name, password);
}
return;
}
updateEnablement();
}
private boolean loginEnabled() {
return !TextUtils.isEmpty(loginText.getText())
&& !TextUtils.isEmpty(passwordText.getText());
}
private void updateEnablement() {
if (loginItem != null)
loginItem.setEnabled(loginEnabled());
}
@Override
public void startActivity(Intent intent) {
if (intent != null && ACTION_VIEW.equals(intent.getAction()))
intent.addCategory(CATEGORY_BROWSABLE);
super.startActivity(intent);
}
/**
* Authenticate login & password
*/
public void handleLogin() {
if (requestNewAccount)
username = loginText.getText().toString();
password = passwordText.getText().toString();
final AlertDialog dialog = LightProgressDialog.create(this,
string.login_activity_authenticating);
dialog.setCancelable(true);
dialog.setOnCancelListener(new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
if (authenticationTask != null)
authenticationTask.cancel(true);
}
});
dialog.show();
authenticationTask = new RoboAsyncTask<User>(this) {
@Override
public User call() throws Exception {
GitHubClient client = new TwoFactorAuthClient();
client.setCredentials(username, password);
User user;
try {
user = new UserService(client).getUser();
} catch (TwoFactorAuthException e) {
if (e.twoFactorAuthType == TWO_FACTOR_AUTH_TYPE_SMS)
sendSmsOtpCode(new OAuthService(client));
openTwoFactorAuthActivity();
return null;
}
Account account = new Account(user.getLogin(), ACCOUNT_TYPE);
if (requestNewAccount) {
accountManager
.addAccountExplicitly(account, password, null);
configureSyncFor(account);
try {
new AccountLoader(LoginActivity.this).call();
} catch (IOException e) {
Log.d(TAG, "Exception loading organizations", e);
}
} else
accountManager.setPassword(account, password);
return user;
}
@Override
protected void onException(Exception e) throws RuntimeException {
dialog.dismiss();
Log.d(TAG, "Exception requesting authenticated user", e);
handleLoginException(e);
}
@Override
public void onSuccess(User user) {
dialog.dismiss();
if (user != null)
onAuthenticationResult(true);
}
};
authenticationTask.execute();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == OTP_CODE_ENTER) {
switch (resultCode) {
case RESULT_OK:
onAuthenticationResult(true);
break;
case RESULT_CANCELED:
Exception e = (Exception) data.getExtras().getSerializable(PARAM_EXCEPTION);
handleLoginException(e);
break;
}
}
}
/**
* Called when response is received from the server for confirm credentials
* request. See onAuthenticationResult(). Sets the
* AccountAuthenticatorResult which is sent back to the caller.
*
* @param result
*/
protected void finishConfirmCredentials(boolean result) {
final Account account = new Account(username, ACCOUNT_TYPE);
accountManager.setPassword(account, password);
final Intent intent = new Intent();
intent.putExtra(KEY_BOOLEAN_RESULT, result);
setAccountAuthenticatorResult(intent.getExtras());
setResult(RESULT_OK, intent);
finish();
}
/**
* Called when response is received from the server for authentication
* request. See onAuthenticationResult(). Sets the
* AccountAuthenticatorResult which is sent back to the caller. Also sets
* the authToken in AccountManager for this account.
*
* @param username
* @param password
*/
protected void finishLogin(final String username, final String password) {
final Intent intent = new Intent();
intent.putExtra(KEY_ACCOUNT_NAME, username);
intent.putExtra(KEY_ACCOUNT_TYPE, ACCOUNT_TYPE);
if (ACCOUNT_TYPE.equals(authTokenType))
intent.putExtra(KEY_AUTHTOKEN, password);
setAccountAuthenticatorResult(intent.getExtras());
setResult(RESULT_OK, intent);
finish();
}
/**
* Called when the authentication process completes (see attemptLogin()).
*
* @param result
*/
public void onAuthenticationResult(boolean result) {
if (result) {
if (!confirmCredentials)
finishLogin(username, password);
else
finishConfirmCredentials(true);
} else {
if (requestNewAccount)
ToastUtils.show(this, string.invalid_login_or_password);
else
ToastUtils.show(this, string.invalid_password);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case id.m_login:
handleLogin();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
public boolean onCreateOptionsMenu(Menu optionMenu) {
getSupportMenuInflater().inflate(menu.login, optionMenu);
loginItem = optionMenu.findItem(id.m_login);
return true;
}
private List<String> getEmailAddresses() {
final Account[] accounts = accountManager
.getAccountsByType("com.google");
final List<String> addresses = new ArrayList<String>(accounts.length);
for (Account account : accounts)
addresses.add(account.name);
return addresses;
}
private void sendSmsOtpCode(final OAuthService service) throws IOException {
try {
AccountAuthenticator.createAuthorization(service);
} catch (TwoFactorAuthException ignored) {
}
}
private void openTwoFactorAuthActivity() {
Intent intent = TwoFactorAuthActivity.createIntent(this, username, password);
startActivityForResult(intent, OTP_CODE_ENTER);
}
private void handleLoginException(final Exception e) {
if (AccountUtils.isUnauthorized(e))
onAuthenticationResult(false);
else
ToastUtils.show(LoginActivity.this, e, string.connection_failed);
}
}