/**
* Copyright (c) 2012-2013, Gerald Garcia
*
* This file is part of Andoid Caldav Sync Adapter Free.
*
* Andoid Caldav Sync Adapter Free is free software: you can redistribute
* it and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, either version 3 of the
* License, or at your option any later version.
*
* Andoid Caldav Sync Adapter Free is distributed in the hope that
* it will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Andoid Caldav Sync Adapter Free.
* If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.gege.caldavsyncadapter.authenticator;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.http.conn.HttpHostConnectException;
import org.gege.caldavsyncadapter.R;
import org.gege.caldavsyncadapter.caldav.CaldavFacade;
import org.gege.caldavsyncadapter.caldav.CaldavFacade.TestConnectionResult;
import org.xml.sax.SAXException;
import android.accounts.Account;
import android.accounts.AccountManager;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
/**
* Activity which displays a login screen to the user, offering registration as
* well.
*/
public class AuthenticatorActivity extends Activity {
private static final String TAG = "AuthenticatorActivity";
private static final String ACCOUNT_TYPE = "org.gege.caldavsyncadapter.account";
public static final String USER_DATA_URL_KEY = "USER_DATA_URL_KEY";
public static final String USER_DATA_USERNAME = "USER_DATA_USERNAME";
public static final String USER_DATA_VERSION = "USER_DATA_VERSION";
public static final String CURRENT_USER_DATA_VERSION = "1";
public static final String ACCOUNT_NAME_SPLITTER = "@";
/**
* The default email to populate the email field with.
*/
public static final String EXTRA_EMAIL = "com.example.android.authenticatordemo.extra.EMAIL";
/**
* Keep track of the login task to ensure we can cancel it if requested.
*/
private UserLoginTask mAuthTask = null;
// Values for email and password at the time of the login attempt.
private String mUser;
private String mPassword;
private Context mContext;
// UI references.
private EditText mUserView;
private EditText mPasswordView;
private View mLoginFormView;
private View mLoginStatusView;
private TextView mLoginStatusMessageView;
private AccountManager mAccountManager;
private String mURL;
private EditText mURLView;
private String mAccountname;
private EditText mAccountnameView;
public AuthenticatorActivity() {
super();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAccountManager = AccountManager.get(this);
setContentView(R.layout.activity_authenticator);
// Set up the login form.
mUser = getIntent().getStringExtra(EXTRA_EMAIL);
mUserView = (EditText) findViewById(R.id.user);
mUserView.setText(mUser);
mContext = getBaseContext();
mPasswordView = (EditText) findViewById(R.id.password);
mPasswordView
.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView textView, int id,
KeyEvent keyEvent) {
if (id == R.id.login || id == EditorInfo.IME_NULL) {
attemptLogin();
return true;
}
return false;
}
});
mURLView = (EditText) findViewById(R.id.url);
mAccountnameView = (EditText) findViewById(R.id.accountname);
mLoginFormView = findViewById(R.id.login_form);
mLoginStatusView = findViewById(R.id.login_status);
mLoginStatusMessageView = (TextView) findViewById(R.id.login_status_message);
findViewById(R.id.sign_in_button).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View view) {
attemptLogin();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.activity_authenticator, menu);
return true;
}
/**
* Attempts to sign in or register the account specified by the login form.
* If there are form errors (invalid email, missing fields, etc.), the
* errors are presented and no actual login attempt is made.
*/
public void attemptLogin() {
if (mAuthTask != null) {
return;
}
// Reset errors.
mUserView.setError(null);
mPasswordView.setError(null);
// Store values at the time of the login attempt.
mUser = mUserView.getText().toString();
mPassword = mPasswordView.getText().toString();
mURL = mURLView.getText().toString();
mAccountname = mAccountnameView.getText().toString();
boolean cancel = false;
View focusView = null;
if (!mAccountname.equals("")) {
Account TestAccount = new Account(mAccountname, ACCOUNT_TYPE);
String TestUrl = mAccountManager.getUserData(TestAccount, AuthenticatorActivity.USER_DATA_URL_KEY);
if (TestUrl != null) {
mAccountnameView.setError(getString(R.string.error_account_already_in_use));
focusView = mAccountnameView;
cancel = true;
}
}
// Check for a valid password.
if (TextUtils.isEmpty(mPassword)) {
mPasswordView.setError(getString(R.string.error_field_required));
focusView = mPasswordView;
cancel = true;
} else if (mPassword.length() < 4) {
mPasswordView.setError(getString(R.string.error_invalid_password));
focusView = mPasswordView;
cancel = true;
}
// Check for a valid email address.
if (TextUtils.isEmpty(mUser)) {
mUserView.setError(getString(R.string.error_field_required));
focusView = mUserView;
cancel = true;
}
//else if (!mUser.contains("@")) {
// mUserView.setError(getString(R.string.error_invalid_email));
// focusView = mUserView;
// cancel = true;
//}
if (cancel) {
// There was an error; don't attempt login and focus the first
// form field with an error.
focusView.requestFocus();
} else {
// Show a progress spinner, and kick off a background task to
// perform the user login attempt.
mLoginStatusMessageView.setText(R.string.login_progress_signing_in);
showProgress(true);
mAuthTask = new UserLoginTask();
mAuthTask.execute((Void) null);
}
}
/**
* Shows the progress UI and hides the login form.
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {
// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
// for very easy animations. If available, use these APIs to fade-in
// the progress spinner.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(
android.R.integer.config_shortAnimTime);
mLoginStatusView.setVisibility(View.VISIBLE);
mLoginStatusView.animate().setDuration(shortAnimTime)
.alpha(show ? 1 : 0)
.setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mLoginStatusView.setVisibility(show ? View.VISIBLE
: View.GONE);
}
});
mLoginFormView.setVisibility(View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime)
.alpha(show ? 0 : 1)
.setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE
: View.VISIBLE);
}
});
} else {
// The ViewPropertyAnimator APIs are not available, so simply show
// and hide the relevant UI components.
mLoginStatusView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
protected enum LoginResult {
MalformedURLException,
GeneralSecurityException,
UnkonwnException,
WrongCredentials,
InvalidResponse,
WrongUrl,
ConnectionRefused,
Success_Calendar,
Success_Collection,
Account_Already_In_Use
}
/**
* Represents an asynchronous login/registration task used to authenticate
* the user.
*/
public class UserLoginTask extends AsyncTask<Void, Void, LoginResult> {
@Override
protected LoginResult doInBackground(Void... params) {
TestConnectionResult result = null;
try {
CaldavFacade facade = new CaldavFacade(mUser, mPassword, mURL);
String version = "";
try {
version = mContext.getPackageManager().getPackageInfo(mContext.getPackageName(), 0).versionName;
} catch (NameNotFoundException e) {
version = "unknown";
e.printStackTrace();
}
facade.setVersion(version);
result = facade.testConnection();
Log.i(TAG, "testConnection status="+result);
} catch (HttpHostConnectException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.ConnectionRefused;
} catch (MalformedURLException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.MalformedURLException;
} catch (UnsupportedEncodingException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.UnkonwnException;
} catch (ParserConfigurationException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.UnkonwnException;
} catch (SAXException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.InvalidResponse;
} catch (IOException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.UnkonwnException;
} catch (URISyntaxException e) {
Log.w(TAG,"testConnection", e);
return LoginResult.MalformedURLException;
}
if (result == null) {
return LoginResult.UnkonwnException;
}
switch (result) {
case SUCCESS:
boolean OldAccount = false;
LoginResult Result = LoginResult.Success_Calendar;
if (OldAccount) {
final Account account = new Account(mUser, ACCOUNT_TYPE);
if (mAccountManager.addAccountExplicitly(account, mPassword, null)) {
Log.v(TAG,"new account created");
mAccountManager.setUserData(account, USER_DATA_URL_KEY, mURL);
} else {
Log.v(TAG,"no new account created");
Result = LoginResult.Account_Already_In_Use;
}
} else {
final Account account;
if (mAccountname.equals("")) {
account = new Account(mUser + ACCOUNT_NAME_SPLITTER + mURL, ACCOUNT_TYPE);
} else {
account = new Account(mAccountname, ACCOUNT_TYPE);
}
if (mAccountManager.addAccountExplicitly(account, mPassword, null)) {
Log.v(TAG,"new account created");
mAccountManager.setUserData(account, USER_DATA_URL_KEY, mURL);
mAccountManager.setUserData(account, USER_DATA_USERNAME, mUser);
mAccountManager.setUserData(account, USER_DATA_VERSION, CURRENT_USER_DATA_VERSION);
} else {
Log.v(TAG,"no new account created");
Result = LoginResult.Account_Already_In_Use;
}
}
return Result;
case WRONG_CREDENTIAL:
return LoginResult.WrongCredentials;
case WRONG_SERVER_STATUS:
return LoginResult.InvalidResponse;
case WRONG_URL:
return LoginResult.WrongUrl;
case WRONG_ANSWER:
return LoginResult.InvalidResponse;
default:
return LoginResult.UnkonwnException;
}
}
@Override
protected void onPostExecute(final LoginResult result) {
mAuthTask = null;
showProgress(false);
int duration = Toast.LENGTH_SHORT;
Toast toast = null;
switch (result) {
case Success_Calendar:
toast = Toast.makeText(getApplicationContext(), R.string.success_calendar, duration);
toast.show();
finish();
break;
case Success_Collection:
toast = Toast.makeText(getApplicationContext(), R.string.success_collection, duration);
toast.show();
finish();
break;
case MalformedURLException:
toast = Toast.makeText(getApplicationContext(), R.string.error_incorrect_url_format, duration);
toast.show();
mURLView.setError(getString(R.string.error_incorrect_url_format));
mURLView.requestFocus();
break;
case InvalidResponse:
toast = Toast.makeText(getApplicationContext(), R.string.error_invalid_server_answer, duration);
toast.show();
mURLView.setError(getString(R.string.error_invalid_server_answer));
mURLView.requestFocus();
break;
case WrongUrl:
toast = Toast.makeText(getApplicationContext(), R.string.error_wrong_url, duration);
toast.show();
mURLView.setError(getString(R.string.error_wrong_url));
mURLView.requestFocus();
break;
case WrongCredentials:
mPasswordView.setError(getString(R.string.error_incorrect_password));
mPasswordView.requestFocus();
break;
case ConnectionRefused:
toast = Toast.makeText(getApplicationContext(), R.string.error_connection_refused, duration);
toast.show();
mURLView.setError(getString(R.string.error_connection_refused));
mURLView.requestFocus();
break;
case Account_Already_In_Use:
toast = Toast.makeText(getApplicationContext(), R.string.error_account_already_in_use, duration);
toast.show();
mURLView.setError(getString(R.string.error_account_already_in_use));
mURLView.requestFocus();
break;
default:
toast = Toast.makeText(getApplicationContext(), R.string.error_unkown_error, duration);
toast.show();
mURLView.setError(getString(R.string.error_unkown_error));
mURLView.requestFocus();
break;
}
}
@Override
protected void onCancelled() {
mAuthTask = null;
showProgress(false);
}
}
}