src/com/owncloud/android/authentication/AuthenticatorActivity.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author Bartek Przybylski
   5  *   @author David A. Velasco
   6  *   @author masensio
   7  *   Copyright (C) 2012  Bartek Przybylski
   8  *   Copyright (C) 2015 ownCloud Inc.
   9  *
  10  *   This program is free software: you can redistribute it and/or modify
  11  *   it under the terms of the GNU General Public License version 2,
  12  *   as published by the Free Software Foundation.
  13  *
  14  *   This program is distributed in the hope that it will be useful,
  15  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *   GNU General Public License for more details.
  18  *
  19  *   You should have received a copy of the GNU General Public License
  20  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21  *
  22  */
  23
  24 package com.owncloud.android.authentication;
  25
  26 import android.accounts.Account;
  27 import android.accounts.AccountManager;
  28 import android.app.Dialog;
  29 import android.content.ComponentName;
  30 import android.content.Context;
  31 import android.content.Intent;
  32 import android.content.ServiceConnection;
  33 import android.content.SharedPreferences;
  34 import android.graphics.Rect;
  35 import android.graphics.drawable.Drawable;
  36 import android.net.Uri;
  37 import android.net.http.SslError;
  38 import android.os.Bundle;
  39 import android.os.Handler;
  40 import android.os.IBinder;
  41 import android.preference.PreferenceManager;
  42 import android.support.v4.app.DialogFragment;
  43 import android.support.v4.app.Fragment;
  44 import android.support.v4.app.FragmentManager;
  45 import android.support.v4.app.FragmentTransaction;
  46 import android.text.Editable;
  47 import android.text.InputType;
  48 import android.text.TextWatcher;
  49 import android.view.KeyEvent;
  50 import android.view.MotionEvent;
  51 import android.view.View;
  52 import android.view.View.OnFocusChangeListener;
  53 import android.view.View.OnTouchListener;
  54 import android.view.inputmethod.EditorInfo;
  55 import android.webkit.HttpAuthHandler;
  56 import android.webkit.SslErrorHandler;
  57 import android.webkit.WebView;
  58 import android.widget.Button;
  59 import android.widget.CheckBox;
  60 import android.widget.EditText;
  61 import android.widget.TextView;
  62 import android.widget.TextView.OnEditorActionListener;
  63 import android.widget.Toast;
  64
  65 import com.owncloud.android.MainApp;
  66 import com.owncloud.android.R;
  67 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  68 import com.owncloud.android.lib.common.OwnCloudCredentials;
  69 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  70 import com.owncloud.android.lib.common.accounts.AccountTypeUtils;
  71 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  72 import com.owncloud.android.lib.common.accounts.AccountUtils.Constants;
  73 import com.owncloud.android.lib.common.network.CertificateCombinedException;
  74 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  75 import com.owncloud.android.lib.common.operations.RemoteOperation;
  76 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  77 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  78 import com.owncloud.android.lib.common.utils.Log_OC;
  79 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  80 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  81 import com.owncloud.android.operations.DetectAuthenticationMethodOperation.AuthenticationMethod;
  82 import com.owncloud.android.operations.GetServerInfoOperation;
  83 import com.owncloud.android.operations.OAuth2GetAccessToken;
  84 import com.owncloud.android.services.OperationsService;
  85 import com.owncloud.android.services.OperationsService.OperationsServiceBinder;
  86 import com.owncloud.android.ui.dialog.CredentialsDialogFragment;
  87 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  88 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  89 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  90 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
  91 import com.owncloud.android.utils.DisplayUtils;
  92
  93 import java.security.cert.X509Certificate;
  94 import java.util.Map;
  95
  96 /**
  97  * This Activity is used to add an ownCloud account to the App
  98  */
  99 public class AuthenticatorActivity extends AccountAuthenticatorActivity
 100         implements  OnRemoteOperationListener, OnFocusChangeListener, OnEditorActionListener,
 101         SsoWebViewClientListener, OnSslUntrustedCertListener,
 102         AuthenticatorAsyncTask.OnAuthenticatorTaskListener {
 103
 104     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
 105
 106     public static final String EXTRA_ACTION = "ACTION";
 107     public static final String EXTRA_ACCOUNT = "ACCOUNT";
 108
 109     private static final String KEY_AUTH_TOKEN_TYPE = "AUTH_TOKEN_TYPE";
 110
 111     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
 112     private static final String KEY_OC_VERSION = "OC_VERSION";
 113     private static final String KEY_SERVER_VALID = "SERVER_VALID";
 114     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
 115     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 116     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 117     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 118     private static final String KEY_PASSWORD_EXPOSED = "PASSWORD_VISIBLE";
 119     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 120     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 121     private static final String KEY_SERVER_AUTH_METHOD = "SERVER_AUTH_METHOD";
 122     private static final String KEY_WAITING_FOR_OP_ID = "WAITING_FOR_OP_ID";
 123     private static final String KEY_AUTH_TOKEN = "AUTH_TOKEN";
 124
 125     private static final String AUTH_ON = "on";
 126     private static final String AUTH_OPTIONAL = "optional";
 127
 128     public static final byte ACTION_CREATE = 0;
 129     public static final byte ACTION_UPDATE_TOKEN = 1;               // requested by the user
 130     public static final byte ACTION_UPDATE_EXPIRED_TOKEN = 2;       // detected by the app
 131
 132     private static final String UNTRUSTED_CERT_DIALOG_TAG = "UNTRUSTED_CERT_DIALOG";
 133     private static final String SAML_DIALOG_TAG = "SAML_DIALOG";
 134     private static final String WAIT_DIALOG_TAG = "WAIT_DIALOG";
 135     private static final String CREDENTIALS_DIALOG_TAG = "CREDENTIALS_DIALOG";
 136     private static final String KEY_AUTH_IS_FIRST_ATTEMPT_TAG = "KEY_AUTH_IS_FIRST_ATTEMPT";
 137
 138     private static final String KEY_USERNAME = "USERNAME";
 139     private static final String KEY_PASSWORD = "PASSWORD";
 140     private static final String KEY_ASYNC_TASK_IN_PROGRESS = "AUTH_IN_PROGRESS";
 141
 142     /// parameters from EXTRAs in starter Intent
 143     private byte mAction;
 144     private Account mAccount;
 145     private String mAuthTokenType;
 146
 147
 148     /// activity-level references / state
 149     private final Handler mHandler = new Handler();
 150     private ServiceConnection mOperationsServiceConnection = null;
 151     private OperationsServiceBinder mOperationsServiceBinder = null;
 152     private AccountManager mAccountMgr;
 153     private Uri mNewCapturedUriFromOAuth2Redirection;
 154
 155
 156     /// Server PRE-Fragment elements
 157     private EditText mHostUrlInput;
 158     private View mRefreshButton;
 159     private TextView mServerStatusView;
 160
 161     private TextWatcher mHostUrlInputWatcher;
 162     private int mServerStatusText = 0, mServerStatusIcon = 0;
 163
 164     private boolean mServerIsChecked = false;
 165     private boolean mServerIsValid = false;
 166     private boolean mPendingAutoCheck = false;
 167
 168     private GetServerInfoOperation.ServerInfo mServerInfo =
 169             new GetServerInfoOperation.ServerInfo();
 170
 171
 172     /// Authentication PRE-Fragment elements
 173     private CheckBox mOAuth2Check;
 174     private TextView mOAuthAuthEndpointText;
 175     private TextView mOAuthTokenEndpointText;
 176     private EditText mUsernameInput;
 177     private EditText mPasswordInput;
 178     private View mOkButton;
 179     private View mCenteredRefreshButton;
 180     private TextView mAuthStatusView;
 181
 182     private int mAuthStatusText = 0, mAuthStatusIcon = 0;
 183
 184     private String mAuthToken = "";
 185     private AuthenticatorAsyncTask mAsyncTask;
 186
 187     private boolean mIsFirstAuthAttempt;
 188
 189     /// Identifier of operation in progress which result shouldn't be lost
 190     private long mWaitingForOpId = Long.MAX_VALUE;
 191
 192     private final String BASIC_TOKEN_TYPE = AccountTypeUtils.getAuthTokenTypePass(
 193             MainApp.getAccountType());
 194     private final String OAUTH_TOKEN_TYPE = AccountTypeUtils.getAuthTokenTypeAccessToken(
 195             MainApp.getAccountType());
 196     private final String SAML_TOKEN_TYPE =
 197             AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 198
 199
 200     /**
 201      * {@inheritDoc}
 202      *
 203      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 204      */
 205     @Override
 206     protected void onCreate(Bundle savedInstanceState) {
 207         //Log_OC.wtf(TAG,  "onCreate init");
 208         super.onCreate(savedInstanceState);
 209
 210         // Workaround, for fixing a problem with Android Library Suppor v7 19
 211         //getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 212         if (getSupportActionBar() != null) {
 213             getSupportActionBar().hide();
 214
 215             getSupportActionBar().setDisplayHomeAsUpEnabled(false);
 216             getSupportActionBar().setDisplayShowHomeEnabled(false);
 217             getSupportActionBar().setDisplayShowTitleEnabled(false);
 218         }
 219
 220         mIsFirstAuthAttempt = true;
 221
 222         // bind to Operations Service
 223         mOperationsServiceConnection = new OperationsServiceConnection();
 224         if (!bindService(new Intent(this, OperationsService.class),
 225                 mOperationsServiceConnection,
 226                 Context.BIND_AUTO_CREATE)) {
 227             Toast.makeText(this,
 228                     R.string.error_cant_bind_to_operations_service,
 229                     Toast.LENGTH_LONG)
 230                         .show();
 231             finish();
 232         }
 233
 234         /// init activity state
 235         mAccountMgr = AccountManager.get(this);
 236         mNewCapturedUriFromOAuth2Redirection = null;
 237
 238         /// get input values
 239         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 240         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 241         if (savedInstanceState == null) {
 242             initAuthTokenType();
 243         } else {
 244             mAuthTokenType = savedInstanceState.getString(KEY_AUTH_TOKEN_TYPE);
 245             mWaitingForOpId = savedInstanceState.getLong(KEY_WAITING_FOR_OP_ID);
 246             mIsFirstAuthAttempt = savedInstanceState.getBoolean(KEY_AUTH_IS_FIRST_ATTEMPT_TAG);
 247         }
 248
 249         /// load user interface
 250         setContentView(R.layout.account_setup);
 251
 252         /// initialize general UI elements
 253         initOverallUi();
 254
 255         mOkButton = findViewById(R.id.buttonOK);
 256         mOkButton.setOnClickListener(new View.OnClickListener() {
 257
 258             @Override
 259             public void onClick(View v) {
 260                 onOkClick();
 261             }
 262         });
 263
 264         mCenteredRefreshButton = findViewById(R.id.centeredRefreshButton);
 265         mCenteredRefreshButton.setOnClickListener(new View.OnClickListener() {
 266
 267             @Override
 268             public void onClick(View v) {
 269                 checkOcServer();
 270             }
 271         });
 272
 273         mOkButton = findViewById(R.id.buttonOK);
 274
 275         /// initialize block to be moved to single Fragment to check server and get info about it
 276         initServerPreFragment(savedInstanceState);
 277
 278         /// initialize block to be moved to single Fragment to retrieve and validate credentials
 279         initAuthorizationPreFragment(savedInstanceState);
 280
 281         //Log_OC.wtf(TAG,  "onCreate end");
 282     }
 283
 284     private void initAuthTokenType() {
 285         mAuthTokenType =
 286                 getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 287         if (mAuthTokenType == null) {
 288             if (mAccount != null) {
 289                 boolean oAuthRequired =
 290                     (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2) != null);
 291                 boolean samlWebSsoRequired = (
 292                     mAccountMgr.getUserData(
 293                         mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO
 294                     ) != null
 295                 );
 296                 mAuthTokenType = chooseAuthTokenType(oAuthRequired, samlWebSsoRequired);
 297
 298             } else {
 299                 boolean oAuthSupported = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 300                 boolean samlWebSsoSupported =
 301                         AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 302                 mAuthTokenType = chooseAuthTokenType(oAuthSupported, samlWebSsoSupported);
 303             }
 304         }
 305     }
 306
 307     private String chooseAuthTokenType(boolean oauth, boolean saml) {
 308         if (saml) {
 309             return SAML_TOKEN_TYPE;
 310         } else if (oauth) {
 311              return OAUTH_TOKEN_TYPE;
 312         } else {
 313             return BASIC_TOKEN_TYPE;
 314         }
 315     }
 316
 317
 318     /**
 319      * Configures elements in the user interface under direct control of the Activity.
 320      */
 321     private void initOverallUi() {
 322
 323         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 324         boolean isWelcomeLinkVisible = getResources().getBoolean(R.bool.show_welcome_link);
 325
 326         String instructionsMessageText = null;
 327         if (mAction == ACTION_UPDATE_EXPIRED_TOKEN) {
 328             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType())
 329                     .equals(mAuthTokenType)) {
 330                 instructionsMessageText = getString(R.string.auth_expired_oauth_token_toast);
 331
 332             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType())
 333                     .equals(mAuthTokenType)) {
 334                 instructionsMessageText = getString(R.string.auth_expired_saml_sso_token_toast);
 335
 336             } else {
 337                 instructionsMessageText = getString(R.string.auth_expired_basic_auth_toast);
 338             }
 339         }
 340
 341         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 342         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 343         welcomeLink.setVisibility(isWelcomeLinkVisible ? View.VISIBLE : View.GONE);
 344         welcomeLink.setText(
 345                 String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 346
 347         TextView instructionsView = (TextView) findViewById(R.id.instructions_message);
 348         if (instructionsMessageText != null) {
 349             instructionsView.setVisibility(View.VISIBLE);
 350             instructionsView.setText(instructionsMessageText);
 351         } else {
 352             instructionsView.setVisibility(View.GONE);
 353         }
 354     }
 355
 356
 357     /**
 358      *
 359      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 360      */
 361     private void initServerPreFragment(Bundle savedInstanceState) {
 362
 363         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 364         boolean isUrlInputAllowed = getResources().getBoolean(R.bool.show_server_url_input);
 365         if (savedInstanceState == null) {
 366             if (mAccount != null) {
 367                 mServerInfo.mBaseUrl = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_BASE_URL);
 368                 // TODO do next in a setter for mBaseUrl
 369                 mServerInfo.mIsSslConn = mServerInfo.mBaseUrl.startsWith("https://");
 370                 mServerInfo.mVersion = AccountUtils.getServerVersion(mAccount);
 371             } else {
 372                 mServerInfo.mBaseUrl = getString(R.string.server_url).trim();
 373                 mServerInfo.mIsSslConn = mServerInfo.mBaseUrl.startsWith("https://");
 374             }
 375         } else {
 376             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 377             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 378
 379             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 380             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 381
 382             // TODO parcelable
 383             mServerInfo.mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 384             mServerInfo.mBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 385             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 386             if (ocVersion != null) {
 387                 mServerInfo.mVersion = new OwnCloudVersion(ocVersion);
 388             }
 389             mServerInfo.mAuthMethod = AuthenticationMethod.valueOf(
 390                     savedInstanceState.getString(KEY_SERVER_AUTH_METHOD));
 391
 392         }
 393
 394         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 395         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 396         // Convert IDN to Unicode
 397         mHostUrlInput.setText(DisplayUtils.convertIdn(mServerInfo.mBaseUrl, false));
 398         if (mAction != ACTION_CREATE) {
 399             /// lock things that should not change
 400             mHostUrlInput.setEnabled(false);
 401             mHostUrlInput.setFocusable(false);
 402         }
 403         if (isUrlInputAllowed) {
 404             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 405         } else {
 406             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 407             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 408         }
 409         showRefreshButton(mServerIsChecked && !mServerIsValid &&
 410                 mWaitingForOpId > Integer.MAX_VALUE);
 411         mServerStatusView = (TextView) findViewById(R.id.server_status_text);
 412         showServerStatus();
 413
 414         /// step 3 - bind some listeners and options
 415         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 416         mHostUrlInput.setOnEditorActionListener(this);
 417
 418         /// step 4 - create listeners that will be bound at onResume
 419         mHostUrlInputWatcher = new TextWatcher() {
 420
 421             @Override
 422             public void afterTextChanged(Editable s) {
 423                 if (mOkButton.isEnabled() &&
 424                         !mServerInfo.mBaseUrl.equals(
 425                                 normalizeUrl(s.toString(), mServerInfo.mIsSslConn))) {
 426                     mOkButton.setEnabled(false);
 427                 }
 428             }
 429
 430             @Override
 431             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 432             }
 433
 434             @Override
 435             public void onTextChanged(CharSequence s, int start, int before, int count) {
 436                 if (mAuthStatusIcon != 0) {
 437                     Log_OC.d(TAG, "onTextChanged: hiding authentication status");
 438                     mAuthStatusIcon = 0;
 439                     mAuthStatusText = 0;
 440                     showAuthStatus();
 441                 }
 442             }
 443         };
 444
 445
 446         // TODO find out if this is really necessary, or if it can done in a different way
 447         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 448             @Override
 449             public boolean onTouch(View view, MotionEvent event) {
 450                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 451                     if (
 452                             AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(
 453                                     MainApp.getAccountType()
 454                             ).equals(mAuthTokenType) &&
 455                                     mHostUrlInput.hasFocus()
 456                             ) {
 457                         checkOcServer();
 458                     }
 459                 }
 460                 return false;
 461             }
 462         });
 463
 464
 465         /// step 4 - mark automatic check to be started when OperationsService is ready
 466         mPendingAutoCheck = (savedInstanceState == null &&
 467                 (mAction != ACTION_CREATE || !isUrlInputAllowed));
 468     }
 469
 470
 471     /**
 472      *
 473      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 474      */
 475     private void initAuthorizationPreFragment(Bundle savedInstanceState) {
 476
 477         /// step 0 - get UI elements in layout
 478         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 479         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 480         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 481         mUsernameInput = (EditText) findViewById(R.id.account_username);
 482         mPasswordInput = (EditText) findViewById(R.id.account_password);
 483         mAuthStatusView = (TextView) findViewById(R.id.auth_status_text);
 484
 485         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 486         String presetUserName = null;
 487         boolean isPasswordExposed = false;
 488         if (savedInstanceState == null) {
 489             if (mAccount != null) {
 490                 presetUserName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 491             }
 492
 493         } else {
 494             isPasswordExposed = savedInstanceState.getBoolean(KEY_PASSWORD_EXPOSED, false);
 495             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 496             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 497             mAuthToken = savedInstanceState.getString(KEY_AUTH_TOKEN);
 498         }
 499
 500         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 501         mOAuth2Check.setChecked(
 502                 AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType())
 503                     .equals(mAuthTokenType));
 504         if (presetUserName != null) {
 505             mUsernameInput.setText(presetUserName);
 506         }
 507         if (mAction != ACTION_CREATE) {
 508             mUsernameInput.setEnabled(false);
 509             mUsernameInput.setFocusable(false);
 510         }
 511         mPasswordInput.setText(""); // clean password to avoid social hacking
 512         if (isPasswordExposed) {
 513             showPassword();
 514         }
 515         updateAuthenticationPreFragmentVisibility();
 516         showAuthStatus();
 517         mOkButton.setEnabled(mServerIsValid);
 518
 519
 520         /// step 3 - bind listeners
 521         // bindings for password input field
 522         mPasswordInput.setOnFocusChangeListener(this);
 523         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 524         mPasswordInput.setOnEditorActionListener(this);
 525         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 526             @Override
 527             public boolean onDrawableTouch(final MotionEvent event) {
 528                 if (event.getAction() == MotionEvent.ACTION_UP) {
 529                     AuthenticatorActivity.this.onViewPasswordClick();
 530                 }
 531                 return true;
 532             }
 533         });
 534
 535     }
 536
 537
 538     /**
 539      * Changes the visibility of input elements depending on
 540      * the current authorization method.
 541      */
 542     private void updateAuthenticationPreFragmentVisibility () {
 543         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 544                 equals(mAuthTokenType)) {
 545             // SAML-based web Single Sign On
 546             mOAuth2Check.setVisibility(View.GONE);
 547             mOAuthAuthEndpointText.setVisibility(View.GONE);
 548             mOAuthTokenEndpointText.setVisibility(View.GONE);
 549             mUsernameInput.setVisibility(View.GONE);
 550             mPasswordInput.setVisibility(View.GONE);
 551
 552         } else {
 553             if (mAction == ACTION_CREATE &&
 554                     AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 555                 mOAuth2Check.setVisibility(View.VISIBLE);
 556             } else {
 557                 mOAuth2Check.setVisibility(View.GONE);
 558             }
 559
 560             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
 561                     equals(mAuthTokenType)) {
 562                 // OAuth 2 authorization
 563
 564                 mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
 565                 mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
 566                 mUsernameInput.setVisibility(View.GONE);
 567                 mPasswordInput.setVisibility(View.GONE);
 568
 569             } else {
 570                 // basic HTTP authorization
 571                 mOAuthAuthEndpointText.setVisibility(View.GONE);
 572                 mOAuthTokenEndpointText.setVisibility(View.GONE);
 573                 mUsernameInput.setVisibility(View.VISIBLE);
 574                 mPasswordInput.setVisibility(View.VISIBLE);
 575             }
 576         }
 577     }
 578
 579
 580
 581     /**
 582      * Saves relevant state before {@link #onPause()}
 583      *
 584      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag,
 585      * intended to defer the processing of the redirection caught in
 586      * {@link #onNewIntent(Intent)} until {@link #onResume()}
 587      *
 588      * See {@link super#onSaveInstanceState(Bundle)}
 589      */
 590     @Override
 591     protected void onSaveInstanceState(Bundle outState) {
 592         //Log_OC.wtf(TAG, "onSaveInstanceState init" );
 593         super.onSaveInstanceState(outState);
 594
 595         /// global state
 596         outState.putString(KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 597         outState.putLong(KEY_WAITING_FOR_OP_ID, mWaitingForOpId);
 598
 599         /// Server PRE-fragment state
 600         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 601         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 602         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 603         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 604         outState.putBoolean(KEY_IS_SSL_CONN, mServerInfo.mIsSslConn);
 605         outState.putString(KEY_HOST_URL_TEXT, mServerInfo.mBaseUrl);
 606         if (mServerInfo.mVersion != null) {
 607             outState.putString(KEY_OC_VERSION, mServerInfo.mVersion.getVersion());
 608         }
 609         outState.putString(KEY_SERVER_AUTH_METHOD, mServerInfo.mAuthMethod.name());
 610
 611         /// Authentication PRE-fragment state
 612         outState.putBoolean(KEY_PASSWORD_EXPOSED, isPasswordVisible());
 613         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 614         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 615         outState.putString(KEY_AUTH_TOKEN, mAuthToken);
 616
 617         /// authentication
 618         outState.putBoolean(KEY_AUTH_IS_FIRST_ATTEMPT_TAG, mIsFirstAuthAttempt);
 619
 620         /// AsyncTask (User and password)
 621         outState.putString(KEY_USERNAME, mUsernameInput.getText().toString());
 622         outState.putString(KEY_PASSWORD, mPasswordInput.getText().toString());
 623
 624         if (mAsyncTask != null) {
 625             mAsyncTask.cancel(true);
 626             outState.putBoolean(KEY_ASYNC_TASK_IN_PROGRESS, true);
 627         } else {
 628             outState.putBoolean(KEY_ASYNC_TASK_IN_PROGRESS, false);
 629         }
 630         mAsyncTask = null;
 631
 632         //Log_OC.wtf(TAG, "onSaveInstanceState end" );
 633     }
 634
 635     @Override
 636     public void onRestoreInstanceState(Bundle savedInstanceState) {
 637         super.onRestoreInstanceState(savedInstanceState);
 638
 639         // AsyncTask
 640         boolean inProgress = savedInstanceState.getBoolean(KEY_ASYNC_TASK_IN_PROGRESS);
 641         if (inProgress){
 642             String username = savedInstanceState.getString(KEY_USERNAME);
 643             String password = savedInstanceState.getString(KEY_PASSWORD);
 644
 645             OwnCloudCredentials credentials = null;
 646             if (BASIC_TOKEN_TYPE.equals(mAuthTokenType)) {
 647                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(username, password);
 648
 649             } else if (OAUTH_TOKEN_TYPE.equals(mAuthTokenType)) {
 650                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(mAuthToken);
 651
 652             }
 653             accessRootFolder(credentials);
 654         }
 655     }
 656
 657     /**
 658      * The redirection triggered by the OAuth authentication server as response to the
 659      * GET AUTHORIZATION request is caught here.
 660      *
 661      * To make this possible, this activity needs to be qualified with android:launchMode =
 662      * "singleTask" in the AndroidManifest.xml file.
 663      */
 664     @Override
 665     protected void onNewIntent (Intent intent) {
 666         Log_OC.d(TAG, "onNewIntent()");
 667         Uri data = intent.getData();
 668         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 669             mNewCapturedUriFromOAuth2Redirection = data;
 670         }
 671     }
 672
 673
 674     /**
 675      * The redirection triggered by the OAuth authentication server as response to the
 676      * GET AUTHORIZATION, and deferred in {@link #onNewIntent(Intent)}, is processed here.
 677      */
 678     @Override
 679     protected void onResume() {
 680         super.onResume();
 681
 682         // bound here to avoid spurious changes triggered by Android on device rotations
 683         mHostUrlInput.setOnFocusChangeListener(this);
 684         mHostUrlInput.addTextChangedListener(mHostUrlInputWatcher);
 685
 686         if (mNewCapturedUriFromOAuth2Redirection != null) {
 687             getOAuth2AccessTokenFromCapturedRedirection();
 688         }
 689
 690         if (mOperationsServiceBinder != null) {
 691             doOnResumeAndBound();
 692         }
 693
 694     }
 695
 696
 697     @Override
 698     protected void onPause() {
 699         if (mOperationsServiceBinder != null) {
 700             mOperationsServiceBinder.removeOperationListener(this);
 701         }
 702
 703         mHostUrlInput.removeTextChangedListener(mHostUrlInputWatcher);
 704         mHostUrlInput.setOnFocusChangeListener(null);
 705
 706         super.onPause();
 707     }
 708
 709     @Override
 710     protected void onDestroy() {
 711
 712         mHostUrlInputWatcher = null;
 713
 714         if (mOperationsServiceConnection != null) {
 715             unbindService(mOperationsServiceConnection);
 716             mOperationsServiceBinder = null;
 717         }
 718         super.onDestroy();
 719     }
 720
 721
 722     /**
 723      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 724      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 725      */
 726     private void getOAuth2AccessTokenFromCapturedRedirection() {
 727         /// Parse data from OAuth redirection
 728         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 729         mNewCapturedUriFromOAuth2Redirection = null;
 730
 731         /// Showing the dialog with instructions for the user.
 732         IndeterminateProgressDialog dialog =
 733                 IndeterminateProgressDialog.newInstance(R.string.auth_getting_authorization, true);
 734         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 735
 736         /// GET ACCESS TOKEN to the oAuth server
 737         Intent getServerInfoIntent = new Intent();
 738         getServerInfoIntent.setAction(OperationsService.ACTION_OAUTH2_GET_ACCESS_TOKEN);
 739
 740         getServerInfoIntent.putExtra(
 741                 OperationsService.EXTRA_SERVER_URL,
 742                 mOAuthTokenEndpointText.getText().toString().trim());
 743
 744         getServerInfoIntent.putExtra(
 745                 OperationsService.EXTRA_OAUTH2_QUERY_PARAMETERS,
 746                 queryParameters);
 747
 748         if (mOperationsServiceBinder != null) {
 749             //Log_OC.wtf(TAG, "getting access token..." );
 750             mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getServerInfoIntent);
 751         }
 752     }
 753
 754
 755
 756     /**
 757      * Handles the change of focus on the text inputs for the server URL and the password
 758      */
 759     public void onFocusChange(View view, boolean hasFocus) {
 760         if (view.getId() == R.id.hostUrlInput) {
 761             if (!hasFocus) {
 762                 onUrlInputFocusLost();
 763             }
 764             else {
 765                 showRefreshButton(false);
 766             }
 767
 768         } else if (view.getId() == R.id.account_password) {
 769             onPasswordFocusChanged(hasFocus);
 770         }
 771     }
 772
 773
 774     /**
 775      * Handles changes in focus on the text input for the server URL.
 776      *
 777      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 778      * other field. The operation to check the existence of the server in the entered URL is
 779      * started.
 780      *
 781      * When hasFocus:    user 'comes back' to write again the server URL.
 782      */
 783     private void onUrlInputFocusLost() {
 784         if (!mServerInfo.mBaseUrl.equals(
 785                 normalizeUrl(mHostUrlInput.getText().toString(), mServerInfo.mIsSslConn))) {
 786             // check server again only if the user changed something in the field
 787             checkOcServer();
 788         } else {
 789             mOkButton.setEnabled(mServerIsValid);
 790             showRefreshButton(!mServerIsValid);
 791         }
 792     }
 793
 794
 795     private void checkOcServer() {
 796         String uri = mHostUrlInput.getText().toString().trim();
 797         mServerIsValid = false;
 798         mServerIsChecked = false;
 799         mOkButton.setEnabled(false);
 800         mServerInfo = new GetServerInfoOperation.ServerInfo();
 801         showRefreshButton(false);
 802
 803         if (uri.length() != 0) {
 804             // Handle internationalized domain names
 805             uri = DisplayUtils.convertIdn(uri, true);
 806
 807             mServerStatusText = R.string.auth_testing_connection;
 808             mServerStatusIcon = R.drawable.progress_small;
 809             showServerStatus();
 810
 811             Intent getServerInfoIntent = new Intent();
 812             getServerInfoIntent.setAction(OperationsService.ACTION_GET_SERVER_INFO);
 813             getServerInfoIntent.putExtra(
 814                 OperationsService.EXTRA_SERVER_URL,
 815                 normalizeUrlSuffix(uri)
 816             );
 817             if (mOperationsServiceBinder != null) {
 818                 mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getServerInfoIntent);
 819             } else {
 820               Log_OC.wtf(TAG, "Server check tried with OperationService unbound!" );
 821             }
 822
 823         } else {
 824             mServerStatusText = 0;
 825             mServerStatusIcon = 0;
 826             showServerStatus();
 827         }
 828     }
 829
 830
 831     /**
 832      * Handles changes in focus on the text input for the password (basic authorization).
 833      *
 834      * When (hasFocus), the button to toggle password visibility is shown.
 835      *
 836      * When (!hasFocus), the button is made invisible and the password is hidden.
 837      *
 838      * @param hasFocus          'True' if focus is received, 'false' if is lost
 839      */
 840     private void onPasswordFocusChanged(boolean hasFocus) {
 841         if (hasFocus) {
 842             showViewPasswordButton();
 843         } else {
 844             hidePassword();
 845             hidePasswordButton();
 846         }
 847     }
 848
 849
 850     private void showViewPasswordButton() {
 851         int drawable = R.drawable.ic_view;
 852         if (isPasswordVisible()) {
 853             drawable = R.drawable.ic_hide;
 854         }
 855         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 856     }
 857
 858     private boolean isPasswordVisible() {
 859         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) ==
 860                 InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 861     }
 862
 863     private void hidePasswordButton() {
 864         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 865     }
 866
 867     private void showPassword() {
 868         mPasswordInput.setInputType(
 869                 InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
 870         );
 871         showViewPasswordButton();
 872     }
 873
 874     private void hidePassword() {
 875         mPasswordInput.setInputType(
 876                 InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD
 877         );
 878         showViewPasswordButton();
 879     }
 880
 881     /**
 882      * Checks the credentials of the user in the root of the ownCloud server
 883      * before creating a new local account.
 884      *
 885      * For basic authorization, a check of existence of the root folder is
 886      * performed.
 887      *
 888      * For OAuth, starts the flow to get an access token; the credentials test
 889      * is postponed until it is available.
 890      *
 891      * IMPORTANT ENTRY POINT 4
 892      */
 893     public void onOkClick() {
 894         // this check should be unnecessary
 895         if (mServerInfo.mVersion == null ||
 896                 !mServerInfo.mVersion.isVersionValid()  ||
 897                 mServerInfo.mBaseUrl == null ||
 898                 mServerInfo.mBaseUrl.length() == 0) {
 899             mServerStatusIcon = R.drawable.common_error;
 900             mServerStatusText = R.string.auth_wtf_reenter_URL;
 901             showServerStatus();
 902             mOkButton.setEnabled(false);
 903             return;
 904         }
 905
 906         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
 907                 equals(mAuthTokenType)) {
 908
 909             startOauthorization();
 910         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 911                 equals(mAuthTokenType)) {
 912
 913             startSamlBasedFederatedSingleSignOnAuthorization();
 914         } else {
 915             checkBasicAuthorization();
 916         }
 917     }
 918
 919
 920     /**
 921      * Tests the credentials entered by the user performing a check of existence on
 922      * the root folder of the ownCloud server.
 923      */
 924     private void checkBasicAuthorization() {
 925         /// get basic credentials entered by user
 926         String username = mUsernameInput.getText().toString();
 927         String password = mPasswordInput.getText().toString();
 928
 929         /// be gentle with the user
 930         IndeterminateProgressDialog dialog =
 931                 IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
 932         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 933
 934         /// validate credentials accessing the root folder
 935         OwnCloudCredentials credentials = OwnCloudCredentialsFactory.newBasicCredentials(username,
 936                 password);
 937         accessRootFolder(credentials);
 938     }
 939
 940     private void accessRootFolder(OwnCloudCredentials credentials) {
 941         mAsyncTask = new AuthenticatorAsyncTask(this);
 942         Object[] params = { mServerInfo.mBaseUrl, credentials };
 943         mAsyncTask.execute(params);
 944     }
 945
 946
 947     /**
 948      * Starts the OAuth 'grant type' flow to get an access token, with
 949      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 950      */
 951     private void startOauthorization() {
 952         // be gentle with the user
 953         mAuthStatusIcon = R.drawable.progress_small;
 954         mAuthStatusText = R.string.oauth_login_connection;
 955         showAuthStatus();
 956
 957         // GET AUTHORIZATION request
 958         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 959         Uri.Builder uriBuilder = uri.buildUpon();
 960         uriBuilder.appendQueryParameter(
 961                 OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type)
 962         );
 963         uriBuilder.appendQueryParameter(
 964                 OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri)
 965         );
 966         uriBuilder.appendQueryParameter(
 967                 OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id)
 968         );
 969         uriBuilder.appendQueryParameter(
 970                 OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope)
 971         );
 972         uri = uriBuilder.build();
 973         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 974         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 975         startActivity(i);
 976     }
 977
 978
 979     /**
 980      * Starts the Web Single Sign On flow to get access to the root folder
 981      * in the server.
 982      */
 983     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 984         /// be gentle with the user
 985         mAuthStatusIcon = R.drawable.progress_small;
 986         mAuthStatusText = R.string.auth_connecting_auth_server;
 987         showAuthStatus();
 988
 989         /// Show SAML-based SSO web dialog
 990         String targetUrl = mServerInfo.mBaseUrl
 991                 + AccountUtils.getWebdavPath(mServerInfo.mVersion, mAuthTokenType);
 992         SamlWebViewDialog dialog = SamlWebViewDialog.newInstance(targetUrl, targetUrl);
 993         dialog.show(getSupportFragmentManager(), SAML_DIALOG_TAG);
 994     }
 995
 996     /**
 997      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 998      *
 999      * Dispatches the operation flow to the right method.
1000      */
1001     @Override
1002     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
1003
1004         if (operation instanceof GetServerInfoOperation) {
1005             if (operation.hashCode() == mWaitingForOpId) {
1006                 onGetServerInfoFinish(result);
1007             }   // else nothing ; only the last check operation is considered;
1008                 // multiple can be started if the user amends a URL quickly
1009
1010         } else if (operation instanceof OAuth2GetAccessToken) {
1011             onGetOAuthAccessTokenFinish(result);
1012
1013         } else if (operation instanceof GetRemoteUserNameOperation) {
1014             onGetUserNameFinish(result);
1015         }
1016
1017     }
1018
1019     private void onGetUserNameFinish(RemoteOperationResult result) {
1020         mWaitingForOpId = Long.MAX_VALUE;
1021         if (result.isSuccess()) {
1022             boolean success = false;
1023             String username = (String) result.getData().get(0);
1024
1025             if ( mAction == ACTION_CREATE) {
1026                 mUsernameInput.setText(username);
1027                 success = createAccount(result);
1028             } else {
1029
1030                 if (!mUsernameInput.getText().toString().equals(username)) {
1031                     // fail - not a new account, but an existing one; disallow
1032                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1033                     mAuthToken = "";
1034                     updateAuthStatusIconAndText(result);
1035                     showAuthStatus();
1036                     Log_OC.d(TAG, result.getLogMessage());
1037                 } else {
1038                     try {
1039                         updateAccountAuthentication();
1040                         success = true;
1041
1042                     } catch (AccountNotFoundException e) {
1043                         Log_OC.e(TAG, "Account " + mAccount + " was removed!", e);
1044                         Toast.makeText(this, R.string.auth_account_does_not_exist,
1045                                 Toast.LENGTH_SHORT).show();
1046                         finish();
1047                     }
1048                 }
1049             }
1050
1051             if (success)
1052                 finish();
1053         } else {
1054             updateStatusIconFailUserName();
1055             showAuthStatus();
1056             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
1057         }
1058
1059     }
1060
1061     /**
1062      * Processes the result of the server check performed when the user finishes the enter of the
1063      * server URL.
1064      *
1065      * @param result        Result of the check.
1066      */
1067     private void onGetServerInfoFinish(RemoteOperationResult result) {
1068         /// update activity state
1069         mServerIsChecked = true;
1070         mWaitingForOpId = Long.MAX_VALUE;
1071
1072         // update server status, but don't show it yet
1073         updateServerStatusIconAndText(result);
1074
1075         if (result.isSuccess()) {
1076             /// SUCCESS means:
1077             //      1. connection succeeded, and we know if it's SSL or not
1078             //      2. server is installed
1079             //      3. we got the server version
1080             //      4. we got the authentication method required by the server
1081             mServerInfo = (GetServerInfoOperation.ServerInfo) (result.getData().get(0));
1082
1083             if (!authSupported(mServerInfo.mAuthMethod)) {
1084
1085                 updateServerStatusIconNoRegularAuth();  // overrides updateServerStatusIconAndText()
1086                 mServerIsValid = false;
1087
1088             } else {
1089                 mServerIsValid = true;
1090             }
1091
1092         } else {
1093             mServerIsValid = false;
1094         }
1095
1096         // refresh UI
1097         showRefreshButton(!mServerIsValid);
1098         showServerStatus();
1099         mOkButton.setEnabled(mServerIsValid);
1100
1101         /// very special case (TODO: move to a common place for all the remote operations)
1102         if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1103             showUntrustedCertDialog(result);
1104         }
1105     }
1106
1107
1108     private boolean authSupported(AuthenticationMethod authMethod) {
1109         return (( BASIC_TOKEN_TYPE.equals(mAuthTokenType) &&
1110                     AuthenticationMethod.BASIC_HTTP_AUTH.equals(authMethod) ) ||
1111                 ( OAUTH_TOKEN_TYPE.equals(mAuthTokenType) &&
1112                     AuthenticationMethod.BEARER_TOKEN.equals(authMethod)) ||
1113                 ( SAML_TOKEN_TYPE.equals(mAuthTokenType)  &&
1114                     AuthenticationMethod.SAML_WEB_SSO.equals(authMethod))
1115         );
1116     }
1117
1118
1119     // TODO remove, if possible
1120     private String normalizeUrl(String url, boolean sslWhenUnprefixed) {
1121         if (url != null && url.length() > 0) {
1122             url = url.trim();
1123             if (!url.toLowerCase().startsWith("http://") &&
1124                     !url.toLowerCase().startsWith("https://")) {
1125                 if (sslWhenUnprefixed) {
1126                     url = "https://" + url;
1127                 } else {
1128                     url = "http://" + url;
1129                 }
1130             }
1131
1132             url = normalizeUrlSuffix(url);
1133         }
1134         return (url != null ? url : "");
1135     }
1136
1137
1138     private String normalizeUrlSuffix(String url) {
1139         if (url.endsWith("/")) {
1140             url = url.substring(0, url.length() - 1);
1141         }
1142         url = trimUrlWebdav(url);
1143         return url;
1144     }
1145
1146
1147     // TODO remove, if possible
1148     private String trimUrlWebdav(String url){
1149         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0_AND_LATER)){
1150             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0_AND_LATER.length());
1151         }
1152         return url;
1153     }
1154
1155
1156     /**
1157      * Chooses the right icon and text to show to the user for the received operation result.
1158      *
1159      * @param result    Result of a remote operation performed in this activity
1160      */
1161     private void updateServerStatusIconAndText(RemoteOperationResult result) {
1162         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1163
1164         switch (result.getCode()) {
1165         case OK_SSL:
1166             mServerStatusIcon = R.drawable.ic_lock;
1167             mServerStatusText = R.string.auth_secure_connection;
1168             break;
1169
1170         case OK_NO_SSL:
1171         case OK:
1172             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1173                 mServerStatusText = R.string.auth_connection_established;
1174                 mServerStatusIcon = R.drawable.ic_ok;
1175             } else {
1176                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
1177                 mServerStatusIcon = R.drawable.ic_lock_open;
1178             }
1179             break;
1180
1181         case NO_NETWORK_CONNECTION:
1182             mServerStatusIcon = R.drawable.no_network;
1183             mServerStatusText = R.string.auth_no_net_conn_title;
1184             break;
1185
1186         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1187             mServerStatusText = R.string.auth_ssl_unverified_server_title;
1188             break;
1189         case BAD_OC_VERSION:
1190             mServerStatusText = R.string.auth_bad_oc_version_title;
1191             break;
1192         case WRONG_CONNECTION:
1193             mServerStatusText = R.string.auth_wrong_connection_title;
1194             break;
1195         case TIMEOUT:
1196             mServerStatusText = R.string.auth_timeout_title;
1197             break;
1198         case INCORRECT_ADDRESS:
1199             mServerStatusText = R.string.auth_incorrect_address_title;
1200             break;
1201         case SSL_ERROR:
1202             mServerStatusText = R.string.auth_ssl_general_error_title;
1203             break;
1204         case UNAUTHORIZED:
1205             mServerStatusText = R.string.auth_unauthorized;
1206             break;
1207         case HOST_NOT_AVAILABLE:
1208             mServerStatusText = R.string.auth_unknown_host_title;
1209             break;
1210         case INSTANCE_NOT_CONFIGURED:
1211             mServerStatusText = R.string.auth_not_configured_title;
1212             break;
1213         case FILE_NOT_FOUND:
1214             mServerStatusText = R.string.auth_incorrect_path_title;
1215             break;
1216         case OAUTH2_ERROR:
1217             mServerStatusText = R.string.auth_oauth_error;
1218             break;
1219         case OAUTH2_ERROR_ACCESS_DENIED:
1220             mServerStatusText = R.string.auth_oauth_error_access_denied;
1221             break;
1222         case UNHANDLED_HTTP_CODE:
1223         case UNKNOWN_ERROR:
1224             mServerStatusText = R.string.auth_unknown_error_title;
1225             break;
1226         case OK_REDIRECT_TO_NON_SECURE_CONNECTION:
1227             mServerStatusIcon = R.drawable.ic_lock_open;
1228             mServerStatusText = R.string.auth_redirect_non_secure_connection_title;
1229             break;
1230         default:
1231             mServerStatusText = 0;
1232             mServerStatusIcon = 0;
1233         }
1234     }
1235
1236
1237     /**
1238      * Chooses the right icon and text to show to the user for the received operation result.
1239      *
1240      * @param result    Result of a remote operation performed in this activity
1241      */
1242     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1243         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1244
1245         switch (result.getCode()) {
1246         case OK_SSL:
1247             mAuthStatusIcon = R.drawable.ic_lock;
1248             mAuthStatusText = R.string.auth_secure_connection;
1249             break;
1250
1251         case OK_NO_SSL:
1252         case OK:
1253             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1254                 mAuthStatusText = R.string.auth_connection_established;
1255                 mAuthStatusIcon = R.drawable.ic_ok;
1256             } else {
1257                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1258                 mAuthStatusIcon = R.drawable.ic_lock_open;
1259             }
1260             break;
1261
1262         case NO_NETWORK_CONNECTION:
1263             mAuthStatusIcon = R.drawable.no_network;
1264             mAuthStatusText = R.string.auth_no_net_conn_title;
1265             break;
1266
1267         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1268             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1269             break;
1270         case BAD_OC_VERSION:
1271             mAuthStatusText = R.string.auth_bad_oc_version_title;
1272             break;
1273         case WRONG_CONNECTION:
1274             mAuthStatusText = R.string.auth_wrong_connection_title;
1275             break;
1276         case TIMEOUT:
1277             mAuthStatusText = R.string.auth_timeout_title;
1278             break;
1279         case INCORRECT_ADDRESS:
1280             mAuthStatusText = R.string.auth_incorrect_address_title;
1281             break;
1282         case SSL_ERROR:
1283             mAuthStatusText = R.string.auth_ssl_general_error_title;
1284             break;
1285         case UNAUTHORIZED:
1286             mAuthStatusText = R.string.auth_unauthorized;
1287             break;
1288         case HOST_NOT_AVAILABLE:
1289             mAuthStatusText = R.string.auth_unknown_host_title;
1290             break;
1291         case INSTANCE_NOT_CONFIGURED:
1292             mAuthStatusText = R.string.auth_not_configured_title;
1293             break;
1294         case FILE_NOT_FOUND:
1295             mAuthStatusText = R.string.auth_incorrect_path_title;
1296             break;
1297         case OAUTH2_ERROR:
1298             mAuthStatusText = R.string.auth_oauth_error;
1299             break;
1300         case OAUTH2_ERROR_ACCESS_DENIED:
1301             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1302             break;
1303         case ACCOUNT_NOT_NEW:
1304             mAuthStatusText = R.string.auth_account_not_new;
1305             break;
1306         case ACCOUNT_NOT_THE_SAME:
1307             mAuthStatusText = R.string.auth_account_not_the_same;
1308             break;
1309         case UNHANDLED_HTTP_CODE:
1310         case UNKNOWN_ERROR:
1311             mAuthStatusText = R.string.auth_unknown_error_title;
1312             break;
1313         default:
1314             mAuthStatusText = 0;
1315             mAuthStatusIcon = 0;
1316         }
1317     }
1318
1319
1320     private void updateStatusIconFailUserName(){
1321         mAuthStatusIcon = R.drawable.common_error;
1322         mAuthStatusText = R.string.auth_fail_get_user_name;
1323     }
1324
1325     private void updateServerStatusIconNoRegularAuth(){
1326         mServerStatusIcon = R.drawable.common_error;
1327         mServerStatusText = R.string.auth_can_not_auth_against_server;
1328     }
1329
1330     /**
1331      * Processes the result of the request for and access token send
1332      * to an OAuth authorization server.
1333      *
1334      * @param result        Result of the operation.
1335      */
1336     private void onGetOAuthAccessTokenFinish(RemoteOperationResult result) {
1337         mWaitingForOpId = Long.MAX_VALUE;
1338         dismissDialog(WAIT_DIALOG_TAG);
1339
1340         if (result.isSuccess()) {
1341             /// be gentle with the user
1342             IndeterminateProgressDialog dialog =
1343                     IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
1344             dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
1345
1346             /// time to test the retrieved access token on the ownCloud server
1347             @SuppressWarnings("unchecked")
1348             Map<String, String> tokens = (Map<String, String>)(result.getData().get(0));
1349             mAuthToken = tokens.get(OAuth2Constants.KEY_ACCESS_TOKEN);
1350             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1351
1352             /// validate token accessing to root folder / getting session
1353             OwnCloudCredentials credentials = OwnCloudCredentialsFactory.newBearerCredentials(
1354                     mAuthToken);
1355             accessRootFolder(credentials);
1356
1357         } else {
1358             updateAuthStatusIconAndText(result);
1359             showAuthStatus();
1360             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1361         }
1362     }
1363
1364
1365     /**
1366      * Processes the result of the access check performed to try the user credentials.
1367      *
1368      * Creates a new account through the AccountManager.
1369      *
1370      * @param result        Result of the operation.
1371      */
1372     @Override
1373     public void onAuthenticatorTaskCallback(RemoteOperationResult result) {
1374         mWaitingForOpId = Long.MAX_VALUE;
1375         dismissDialog(WAIT_DIALOG_TAG);
1376         mAsyncTask = null;
1377
1378         if (result.isSuccess()) {
1379             Log_OC.d(TAG, "Successful access - time to save the account");
1380
1381             boolean success = false;
1382
1383             if (mAction == ACTION_CREATE) {
1384                 success = createAccount(result);
1385
1386             } else {
1387                 try {
1388                     updateAccountAuthentication();
1389                     success = true;
1390
1391                 } catch (AccountNotFoundException e) {
1392                     Log_OC.e(TAG, "Account " + mAccount + " was removed!", e);
1393                     Toast.makeText(this, R.string.auth_account_does_not_exist,
1394                             Toast.LENGTH_SHORT).show();
1395                     finish();
1396                 }
1397             }
1398
1399             if (success) {
1400                 finish();
1401             }
1402
1403         } else if (result.isServerFail() || result.isException()) {
1404             /// server errors or exceptions in authorization take to requiring a new check of
1405             /// the server
1406             mServerIsChecked = true;
1407             mServerIsValid = false;
1408             mServerInfo = new GetServerInfoOperation.ServerInfo();
1409
1410             // update status icon and text
1411             updateServerStatusIconAndText(result);
1412             showServerStatus();
1413             mAuthStatusIcon = 0;
1414             mAuthStatusText = 0;
1415             showAuthStatus();
1416
1417             // update input controls state
1418             showRefreshButton(true);
1419             mOkButton.setEnabled(false);
1420
1421             // very special case (TODO: move to a common place for all the remote operations)
1422             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1423                 showUntrustedCertDialog(result);
1424             }
1425
1426         } else {    // authorization fail due to client side - probably wrong credentials
1427             updateAuthStatusIconAndText(result);
1428             showAuthStatus();
1429             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1430         }
1431     }
1432
1433
1434
1435
1436     /**
1437      * Updates the authentication token.
1438      *
1439      * Sets the proper response so that the AccountAuthenticator that started this activity
1440      * saves a new authorization token for mAccount.
1441      *
1442      * Kills the session kept by OwnCloudClientManager so that a new one will created with
1443      * the new credentials when needed.
1444      */
1445     private void updateAccountAuthentication() throws AccountNotFoundException {
1446
1447         Bundle response = new Bundle();
1448         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1449         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1450
1451         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
1452                 equals(mAuthTokenType)) {
1453             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1454             // the next line is necessary, notifications are calling directly to the
1455             // AuthenticatorActivity to update, without AccountManager intervention
1456             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1457
1458         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1459                 equals(mAuthTokenType)) {
1460
1461             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1462             // the next line is necessary; by now, notifications are calling directly to the
1463             // AuthenticatorActivity to update, without AccountManager intervention
1464             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1465
1466         } else {
1467             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1468             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1469         }
1470         setAccountAuthenticatorResult(response);
1471
1472     }
1473
1474
1475     /**
1476      * Creates a new account through the Account Authenticator that started this activity.
1477      *
1478      * This makes the account permanent.
1479      *
1480      * TODO Decide how to name the OAuth accounts
1481      */
1482     private boolean createAccount(RemoteOperationResult authResult) {
1483         /// create and save new ownCloud account
1484         boolean isOAuth = AccountTypeUtils.
1485                 getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1486         boolean isSaml =  AccountTypeUtils.
1487                 getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1488
1489         String lastPermanentLocation = authResult.getLastPermanentLocation();
1490         if (lastPermanentLocation != null) {
1491             mServerInfo.mBaseUrl = AccountUtils.trimWebdavSuffix(lastPermanentLocation);
1492         }
1493
1494         Uri uri = Uri.parse(mServerInfo.mBaseUrl);
1495         String username = mUsernameInput.getText().toString().trim();
1496         if (isOAuth) {
1497             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1498         }
1499         String accountName = com.owncloud.android.lib.common.accounts.AccountUtils.
1500                 buildAccountName(uri, username);
1501         Account newAccount = new Account(accountName, MainApp.getAccountType());
1502         if (AccountUtils.exists(newAccount, getApplicationContext())) {
1503             // fail - not a new account, but an existing one; disallow
1504             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1505             updateAuthStatusIconAndText(result);
1506             showAuthStatus();
1507             Log_OC.d(TAG, result.getLogMessage());
1508             return false;
1509
1510         } else {
1511             mAccount = newAccount;
1512
1513             if (isOAuth || isSaml) {
1514                 // with external authorizations, the password is never input in the app
1515                 mAccountMgr.addAccountExplicitly(mAccount, "", null);
1516             } else {
1517                 mAccountMgr.addAccountExplicitly(
1518                         mAccount, mPasswordInput.getText().toString(), null
1519                 );
1520             }
1521
1522             // include account version with the new account
1523             mAccountMgr.setUserData(
1524                 mAccount,
1525                 Constants.KEY_OC_ACCOUNT_VERSION,
1526                 Integer.toString(AccountUtils.ACCOUNT_VERSION)
1527             );
1528
1529             /// add the new account as default in preferences, if there is none already
1530             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1531             if (defaultAccount == null) {
1532                 SharedPreferences.Editor editor = PreferenceManager
1533                         .getDefaultSharedPreferences(this).edit();
1534                 editor.putString("select_oc_account", accountName);
1535                 editor.commit();
1536             }
1537
1538             /// prepare result to return to the Authenticator
1539             //  TODO check again what the Authenticator makes with it; probably has the same
1540             //  effect as addAccountExplicitly, but it's not well done
1541             final Intent intent = new Intent();
1542             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1543             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1544             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1545             if (isOAuth || isSaml) {
1546                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1547             }
1548             /// add user data to the new account; TODO probably can be done in the last parameter
1549             //      addAccountExplicitly, or in KEY_USERDATA
1550             mAccountMgr.setUserData(
1551                     mAccount, Constants.KEY_OC_VERSION, mServerInfo.mVersion.getVersion()
1552             );
1553             mAccountMgr.setUserData(
1554                     mAccount, Constants.KEY_OC_BASE_URL,   mServerInfo.mBaseUrl
1555             );
1556
1557             if (isSaml) {
1558                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1559             } else if (isOAuth) {
1560                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1561             }
1562
1563             setAccountAuthenticatorResult(intent.getExtras());
1564             setResult(RESULT_OK, intent);
1565
1566             return true;
1567         }
1568     }
1569
1570
1571     /**
1572      * Starts and activity to open the 'new account' page in the ownCloud web site
1573      *
1574      * @param view      'Account register' button
1575      */
1576     public void onRegisterClick(View view) {
1577         Intent register = new Intent(
1578                 Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url))
1579         );
1580         setResult(RESULT_CANCELED);
1581         startActivity(register);
1582     }
1583
1584
1585     /**
1586      * Updates the content and visibility state of the icon and text associated
1587      * to the last check on the ownCloud server.
1588      *
1589      */
1590     private void showServerStatus() {
1591         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1592             mServerStatusView.setVisibility(View.INVISIBLE);
1593
1594         } else {
1595             mServerStatusView.setText(mServerStatusText);
1596             mServerStatusView.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1597             mServerStatusView.setVisibility(View.VISIBLE);
1598         }
1599
1600     }
1601
1602
1603     /**
1604      * Updates the content and visibility state of the icon and text associated
1605      * to the interactions with the OAuth authorization server.
1606      */
1607     private void showAuthStatus() {
1608         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1609             mAuthStatusView.setVisibility(View.INVISIBLE);
1610
1611         } else {
1612             mAuthStatusView.setText(mAuthStatusText);
1613             mAuthStatusView.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1614             mAuthStatusView.setVisibility(View.VISIBLE);
1615         }
1616     }
1617
1618
1619     private void showRefreshButton (boolean show) {
1620         if (show)  {
1621             mRefreshButton.setVisibility(View.VISIBLE);
1622         } else {
1623             mRefreshButton.setVisibility(View.GONE);
1624         }
1625     }
1626
1627     /**
1628      * Called when the refresh button in the input field for ownCloud host is clicked.
1629      *
1630      * Performs a new check on the URL in the input field.
1631      *
1632      * @param view      Refresh 'button'
1633      */
1634     public void onRefreshClick(View view) {
1635         checkOcServer();
1636     }
1637
1638
1639     /**
1640      * Called when the eye icon in the password field is clicked.
1641      *
1642      * Toggles the visibility of the password in the field.
1643      */
1644     public void onViewPasswordClick() {
1645         int selectionStart = mPasswordInput.getSelectionStart();
1646         int selectionEnd = mPasswordInput.getSelectionEnd();
1647         if (isPasswordVisible()) {
1648             hidePassword();
1649         } else {
1650             showPassword();
1651         }
1652         mPasswordInput.setSelection(selectionStart, selectionEnd);
1653     }
1654
1655
1656     /**
1657      * Called when the checkbox for OAuth authorization is clicked.
1658      *
1659      * Hides or shows the input fields for user & password.
1660      *
1661      * @param view      'View password' 'button'
1662      */
1663     public void onCheckClick(View view) {
1664         CheckBox oAuth2Check = (CheckBox)view;
1665         if (oAuth2Check.isChecked()) {
1666             mAuthTokenType = OAUTH_TOKEN_TYPE;
1667         } else {
1668             mAuthTokenType = BASIC_TOKEN_TYPE;
1669         }
1670         updateAuthenticationPreFragmentVisibility();
1671     }
1672
1673
1674     /**
1675      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1676      *
1677      *  Used to trigger the authentication check when the user presses 'enter' after writing the
1678      *  password, or to throw the server test when the only field on screen is the URL input field.
1679      */
1680     @Override
1681     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1682         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null &&
1683                 inputField.equals(mPasswordInput)) {
1684             if (mOkButton.isEnabled()) {
1685                 mOkButton.performClick();
1686             }
1687
1688         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null &&
1689                 inputField.equals(mHostUrlInput)) {
1690             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1691                     equals(mAuthTokenType)) {
1692                 checkOcServer();
1693             }
1694         }
1695         return false;   // always return false to grant that the software keyboard is hidden anyway
1696     }
1697
1698
1699     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1700
1701         private int fuzz = 75;
1702
1703         /**
1704          * {@inheritDoc}
1705          */
1706         @Override
1707         public boolean onTouch(View view, MotionEvent event) {
1708             Drawable rightDrawable = null;
1709             if (view instanceof TextView) {
1710                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1711                 if (drawables.length > 2) {
1712                     rightDrawable = drawables[2];
1713                 }
1714             }
1715             if (rightDrawable != null) {
1716                 final int x = (int) event.getX();
1717                 final int y = (int) event.getY();
1718                 final Rect bounds = rightDrawable.getBounds();
1719                 if (    x >= (view.getRight() - bounds.width() - fuzz) &&
1720                         x <= (view.getRight() - view.getPaddingRight() + fuzz) &&
1721                         y >= (view.getPaddingTop() - fuzz) &&
1722                         y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1723
1724                     return onDrawableTouch(event);
1725                 }
1726             }
1727             return false;
1728         }
1729
1730         public abstract boolean onDrawableTouch(final MotionEvent event);
1731     }
1732
1733
1734     private void getRemoteUserNameOperation(String sessionCookie) {
1735
1736         Intent getUserNameIntent = new Intent();
1737         getUserNameIntent.setAction(OperationsService.ACTION_GET_USER_NAME);
1738         getUserNameIntent.putExtra(OperationsService.EXTRA_SERVER_URL, mServerInfo.mBaseUrl);
1739         getUserNameIntent.putExtra(OperationsService.EXTRA_COOKIE, sessionCookie);
1740
1741         if (mOperationsServiceBinder != null) {
1742             mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getUserNameIntent);
1743         }
1744     }
1745
1746
1747     @Override
1748     public void onSsoFinished(String sessionCookie) {
1749         if (sessionCookie != null && sessionCookie.length() > 0) {
1750             Log_OC.d(TAG, "Successful SSO - time to save the account");
1751             mAuthToken = sessionCookie;
1752             getRemoteUserNameOperation(sessionCookie);
1753             Fragment fd = getSupportFragmentManager().findFragmentByTag(SAML_DIALOG_TAG);
1754             if (fd != null && fd instanceof DialogFragment) {
1755                 Dialog d = ((DialogFragment)fd).getDialog();
1756                 if (d != null && d.isShowing()) {
1757                     d.dismiss();
1758                 }
1759             }
1760
1761         } else {
1762             // TODO - show fail
1763             Log_OC.d(TAG, "SSO failed");
1764         }
1765
1766     }
1767
1768     @Override
1769     public boolean onTouchEvent(MotionEvent event) {
1770         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1771                 equals(mAuthTokenType) &&
1772                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1773             checkOcServer();
1774         }
1775         return super.onTouchEvent(event);
1776     }
1777
1778
1779     /**
1780      * Show untrusted cert dialog
1781      */
1782     public void showUntrustedCertDialog(
1783             X509Certificate x509Certificate, SslError error, SslErrorHandler handler
1784         ) {
1785         // Show a dialog with the certificate info
1786         SslUntrustedCertDialog dialog;
1787         if (x509Certificate == null) {
1788             dialog = SslUntrustedCertDialog.newInstanceForEmptySslError(error, handler);
1789         } else {
1790             dialog = SslUntrustedCertDialog.
1791                     newInstanceForFullSslError(x509Certificate, error, handler);
1792         }
1793         FragmentManager fm = getSupportFragmentManager();
1794         FragmentTransaction ft = fm.beginTransaction();
1795         ft.addToBackStack(null);
1796         dialog.show(ft, UNTRUSTED_CERT_DIALOG_TAG);
1797     }
1798
1799
1800     /**
1801      * Show untrusted cert dialog
1802      */
1803     private void showUntrustedCertDialog(RemoteOperationResult result) {
1804         // Show a dialog with the certificate info
1805         SslUntrustedCertDialog dialog = SslUntrustedCertDialog.
1806                 newInstanceForFullSslError((CertificateCombinedException)result.getException());
1807         FragmentManager fm = getSupportFragmentManager();
1808         FragmentTransaction ft = fm.beginTransaction();
1809         ft.addToBackStack(null);
1810         dialog.show(ft, UNTRUSTED_CERT_DIALOG_TAG);
1811
1812     }
1813
1814     /**
1815      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1816      */
1817     public void onSavedCertificate() {
1818         Fragment fd = getSupportFragmentManager().findFragmentByTag(SAML_DIALOG_TAG);
1819         if (fd == null) {
1820             // if SAML dialog is not shown,
1821             // the SslDialog was shown due to an SSL error in the server check
1822             checkOcServer();
1823         }
1824     }
1825
1826     /**
1827      * Called from SslValidatorDialog when a new server certificate could not be saved
1828      * when the user requested it.
1829      */
1830     @Override
1831     public void onFailedSavingCertificate() {
1832         dismissDialog(SAML_DIALOG_TAG);
1833         Toast.makeText(this, R.string.ssl_validator_not_saved, Toast.LENGTH_LONG).show();
1834     }
1835
1836     @Override
1837     public void onCancelCertificate() {
1838         dismissDialog(SAML_DIALOG_TAG);
1839     }
1840
1841
1842     private void doOnResumeAndBound() {
1843         //Log_OC.wtf(TAG, "registering to listen for operation callbacks" );
1844         mOperationsServiceBinder.addOperationListener(AuthenticatorActivity.this, mHandler);
1845         if (mWaitingForOpId <= Integer.MAX_VALUE) {
1846             mOperationsServiceBinder.dispatchResultIfFinished((int)mWaitingForOpId, this);
1847         }
1848
1849         if (mPendingAutoCheck) {
1850             checkOcServer();
1851         }
1852     }
1853
1854
1855     private void dismissDialog(String dialogTag){
1856         Fragment frag = getSupportFragmentManager().findFragmentByTag(dialogTag);
1857         if (frag != null && frag instanceof DialogFragment) {
1858             DialogFragment dialog = (DialogFragment) frag;
1859             dialog.dismiss();
1860         }
1861     }
1862
1863
1864     /**
1865      * Implements callback methods for service binding.
1866      */
1867     private class OperationsServiceConnection implements ServiceConnection {
1868
1869         @Override
1870         public void onServiceConnected(ComponentName component, IBinder service) {
1871             if (component.equals(
1872                     new ComponentName(AuthenticatorActivity.this, OperationsService.class)
1873                 )) {
1874                 mOperationsServiceBinder = (OperationsServiceBinder) service;
1875
1876                 doOnResumeAndBound();
1877
1878             }
1879
1880         }
1881
1882         @Override
1883         public void onServiceDisconnected(ComponentName component) {
1884             if (component.equals(
1885                     new ComponentName(AuthenticatorActivity.this, OperationsService.class)
1886                 )) {
1887                 Log_OC.e(TAG, "Operations service crashed");
1888                 mOperationsServiceBinder = null;
1889             }
1890         }
1891
1892     }
1893
1894     /**
1895      * Create and show dialog for request authentication to the user
1896      * @param webView   Web view to emebd into the authentication dialog.
1897      * @param handler   Object responsible for catching and recovering HTTP authentication fails.
1898      */
1899     public void createAuthenticationDialog(WebView webView, HttpAuthHandler handler) {
1900
1901         // Show a dialog with the certificate info
1902         CredentialsDialogFragment dialog =
1903                 CredentialsDialogFragment.newInstanceForCredentials(webView, handler);
1904         FragmentManager fm = getSupportFragmentManager();
1905         FragmentTransaction ft = fm.beginTransaction();
1906         ft.addToBackStack(null);
1907         dialog.setCancelable(false);
1908         dialog.show(ft, CREDENTIALS_DIALOG_TAG);
1909
1910         if (!mIsFirstAuthAttempt) {
1911             Toast.makeText(
1912                     getApplicationContext(),
1913                     getText(R.string.saml_authentication_wrong_pass),
1914                     Toast.LENGTH_LONG
1915             ).show();
1916         } else {
1917             mIsFirstAuthAttempt = false;
1918         }
1919     }
1920
1921     /**
1922      * For retrieving the clicking on authentication cancel button
1923      */
1924     public void doNegativeAuthenticatioDialogClick(){
1925         mIsFirstAuthAttempt = true;
1926     }
1927
1928 }