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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2014 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import java.io.IOException;
  22 import java.security.cert.X509Certificate;
  23 import java.util.Map;
  24
  25 import android.accounts.Account;
  26 import android.accounts.AccountManager;
  27 import android.accounts.AuthenticatorException;
  28 import android.accounts.OperationCanceledException;
  29 import android.app.Dialog;
  30 import android.content.ComponentName;
  31 import android.content.Context;
  32 import android.content.Intent;
  33 import android.content.ServiceConnection;
  34 import android.content.SharedPreferences;
  35 import android.graphics.Rect;
  36 import android.graphics.drawable.Drawable;
  37 import android.net.Uri;
  38 import android.net.http.SslError;
  39 import android.os.Bundle;
  40 import android.os.Handler;
  41 import android.os.IBinder;
  42 import android.preference.PreferenceManager;
  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.Window;
  55 import android.view.inputmethod.EditorInfo;
  56 import android.webkit.HttpAuthHandler;
  57 import android.webkit.SslErrorHandler;
  58 import android.webkit.WebView;
  59 import android.widget.Button;
  60 import android.widget.CheckBox;
  61 import android.widget.EditText;
  62 import android.widget.TextView;
  63 import android.widget.TextView.OnEditorActionListener;
  64 import android.widget.Toast;
  65
  66 import com.actionbarsherlock.app.SherlockDialogFragment;
  67 import com.owncloud.android.MainApp;
  68 import com.owncloud.android.R;
  69 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  70 import com.owncloud.android.lib.common.OwnCloudAccount;
  71 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  72 import com.owncloud.android.lib.common.accounts.AccountTypeUtils;
  73 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  74 import com.owncloud.android.lib.common.accounts.AccountUtils.Constants;
  75 import com.owncloud.android.lib.common.network.CertificateCombinedException;
  76 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  77 import com.owncloud.android.lib.common.operations.RemoteOperation;
  78 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  79 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  80 import com.owncloud.android.lib.common.utils.Log_OC;
  81 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  82 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  83 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  84 import com.owncloud.android.operations.DetectAuthenticationMethodOperation.AuthenticationMethod;
  85 import com.owncloud.android.operations.GetServerInfoOperation;
  86 import com.owncloud.android.operations.OAuth2GetAccessToken;
  87 import com.owncloud.android.services.OperationsService;
  88 import com.owncloud.android.services.OperationsService.OperationsServiceBinder;
  89 import com.owncloud.android.ui.dialog.CredentialsDialogFragment;
  90 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  91 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  92 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  93 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
  94 import com.owncloud.android.utils.DisplayUtils;
  95
  96 /**
  97  * This Activity is used to add an ownCloud account to the App
  98  *
  99  * @author Bartek Przybylski
 100  * @author David A. Velasco
 101  * @author masensio
 102  */
 103 public class AuthenticatorActivity extends AccountAuthenticatorActivity
 104         implements  OnRemoteOperationListener, OnFocusChangeListener, OnEditorActionListener,
 105         SsoWebViewClientListener, OnSslUntrustedCertListener,
 106         AuthenticatorAsyncTask.OnAuthenticatorTaskListener {
 107
 108     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
 109
 110     public static final String EXTRA_ACTION = "ACTION";
 111     public static final String EXTRA_ACCOUNT = "ACCOUNT";
 112
 113     private static final String KEY_AUTH_TOKEN_TYPE = "AUTH_TOKEN_TYPE";
 114
 115     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
 116     private static final String KEY_OC_VERSION = "OC_VERSION";
 117     private static final String KEY_SERVER_VALID = "SERVER_VALID";
 118     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
 119     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 120     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 121     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 122     private static final String KEY_PASSWORD_EXPOSED = "PASSWORD_VISIBLE";
 123     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 124     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 125     private static final String KEY_SERVER_AUTH_METHOD = "SERVER_AUTH_METHOD";
 126     private static final String KEY_WAITING_FOR_OP_ID = "WAITING_FOR_OP_ID";
 127     private static final String KEY_AUTH_TOKEN = "AUTH_TOKEN";
 128
 129     private static final String AUTH_ON = "on";
 130     private static final String AUTH_OPTIONAL = "optional";
 131
 132     public static final byte ACTION_CREATE = 0;
 133     public static final byte ACTION_UPDATE_TOKEN = 1;               // requested by the user
 134     public static final byte ACTION_UPDATE_EXPIRED_TOKEN = 2;       // detected by the app
 135
 136     private static final String UNTRUSTED_CERT_DIALOG_TAG = "UNTRUSTED_CERT_DIALOG";
 137     private static final String SAML_DIALOG_TAG = "SAML_DIALOG";
 138     private static final String WAIT_DIALOG_TAG = "WAIT_DIALOG";
 139     private static final String CREDENTIALS_DIALOG_TAG = "CREDENTIALS_DIALOG";
 140     private static final String KEY_AUTH_IS_FIRST_ATTEMPT_TAG = "KEY_AUTH_IS_FIRST_ATTEMPT";
 141
 142
 143     /// parameters from EXTRAs in starter Intent
 144     private byte mAction;
 145     private Account mAccount;
 146     private String mAuthTokenType;
 147
 148
 149     /// activity-level references / state
 150     private final Handler mHandler = new Handler();
 151     private ServiceConnection mOperationsServiceConnection = null;
 152     private OperationsServiceBinder mOperationsServiceBinder = null;
 153     private AccountManager mAccountMgr;
 154     private Uri mNewCapturedUriFromOAuth2Redirection;
 155
 156
 157     /// Server PRE-Fragment elements
 158     private EditText mHostUrlInput;
 159     private View mRefreshButton;
 160     private TextView mServerStatusView;
 161
 162     private TextWatcher mHostUrlInputWatcher;
 163     private int mServerStatusText = 0, mServerStatusIcon = 0;
 164
 165     private boolean mServerIsChecked = false;
 166     private boolean mServerIsValid = false;
 167     private boolean mPendingAutoCheck = false;
 168
 169     private GetServerInfoOperation.ServerInfo mServerInfo =
 170             new GetServerInfoOperation.ServerInfo();
 171
 172
 173     /// Authentication PRE-Fragment elements
 174     private CheckBox mOAuth2Check;
 175     private TextView mOAuthAuthEndpointText;
 176     private TextView mOAuthTokenEndpointText;
 177     private EditText mUsernameInput;
 178     private EditText mPasswordInput;
 179     private View mOkButton;
 180     private TextView mAuthStatusView;
 181
 182     private int mAuthStatusText = 0, mAuthStatusIcon = 0;
 183
 184     private String mAuthToken = "";
 185
 186     private boolean mIsFirstAuthAttempt;
 187
 188
 189     /// Identifier of operation in progress which result shouldn't be lost
 190     private long mWaitingForOpId = Long.MAX_VALUE;
 191
 192
 193     /**
 194      * {@inheritDoc}
 195      *
 196      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 197      */
 198     @Override
 199     protected void onCreate(Bundle savedInstanceState) {
 200         //Log_OC.wtf(TAG,  "onCreate init");
 201         super.onCreate(savedInstanceState);
 202         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 203
 204         mIsFirstAuthAttempt = true;
 205
 206         // bind to Operations Service
 207         mOperationsServiceConnection = new OperationsServiceConnection();
 208         if (!bindService(new Intent(this, OperationsService.class),
 209                 mOperationsServiceConnection,
 210                 Context.BIND_AUTO_CREATE)) {
 211             Toast.makeText(this,
 212                     R.string.error_cant_bind_to_operations_service,
 213                     Toast.LENGTH_LONG)
 214                         .show();
 215             finish();
 216         }
 217
 218         /// init activity state
 219         mAccountMgr = AccountManager.get(this);
 220         mNewCapturedUriFromOAuth2Redirection = null;
 221
 222         /// get input values
 223         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 224         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 225         if (savedInstanceState == null) {
 226             initAuthTokenType();
 227         } else {
 228             mAuthTokenType = savedInstanceState.getString(KEY_AUTH_TOKEN_TYPE);
 229             mWaitingForOpId = savedInstanceState.getLong(KEY_WAITING_FOR_OP_ID);
 230             mIsFirstAuthAttempt = savedInstanceState.getBoolean(KEY_AUTH_IS_FIRST_ATTEMPT_TAG);
 231         }
 232
 233
 234
 235         /// load user interface
 236         setContentView(R.layout.account_setup);
 237
 238         /// initialize general UI elements
 239         initOverallUi(savedInstanceState);
 240
 241         mOkButton = findViewById(R.id.buttonOK);
 242
 243         /// initialize block to be moved to single Fragment to check server and get info about it
 244         initServerPreFragment(savedInstanceState);
 245
 246         /// initialize block to be moved to single Fragment to retrieve and validate credentials
 247         initAuthorizationPreFragment(savedInstanceState);
 248
 249         //Log_OC.wtf(TAG,  "onCreate end");
 250     }
 251
 252     private void initAuthTokenType() {
 253         mAuthTokenType =
 254                 getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 255         if (mAuthTokenType == null) {
 256             if (mAccount != null) {
 257                 boolean oAuthRequired =
 258                     (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2) != null);
 259                 boolean samlWebSsoRequired = (
 260                     mAccountMgr.getUserData(
 261                         mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO
 262                     ) != null
 263                 );
 264                 mAuthTokenType = chooseAuthTokenType(oAuthRequired, samlWebSsoRequired);
 265
 266             } else {
 267                 boolean oAuthSupported = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 268                 boolean samlWebSsoSupported =
 269                         AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 270                 mAuthTokenType = chooseAuthTokenType(oAuthSupported, samlWebSsoSupported);
 271             }
 272         }
 273     }
 274
 275     private String chooseAuthTokenType(boolean oauth, boolean saml) {
 276         if (saml) {
 277             return AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 278         } else if (oauth) {
 279              return AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 280         } else {
 281             return AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 282         }
 283     }
 284
 285
 286     /**
 287      * Configures elements in the user interface under direct control of the Activity.
 288      *
 289      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 290      */
 291     private void initOverallUi(Bundle savedInstanceState) {
 292
 293         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 294         boolean isWelcomeLinkVisible = getResources().getBoolean(R.bool.show_welcome_link);
 295
 296         String instructionsMessageText = null;
 297         if (mAction == ACTION_UPDATE_EXPIRED_TOKEN) {
 298             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType())
 299                     .equals(mAuthTokenType)) {
 300                 instructionsMessageText = getString(R.string.auth_expired_oauth_token_toast);
 301
 302             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType())
 303                     .equals(mAuthTokenType)) {
 304                 instructionsMessageText = getString(R.string.auth_expired_saml_sso_token_toast);
 305
 306             } else {
 307                 instructionsMessageText = getString(R.string.auth_expired_basic_auth_toast);
 308             }
 309         }
 310
 311         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 312         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 313         welcomeLink.setVisibility(isWelcomeLinkVisible ? View.VISIBLE : View.GONE);
 314         welcomeLink.setText(
 315                 String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 316
 317         TextView instructionsView = (TextView) findViewById(R.id.instructions_message);
 318         if (instructionsMessageText != null) {
 319             instructionsView.setVisibility(View.VISIBLE);
 320             instructionsView.setText(instructionsMessageText);
 321         } else {
 322             instructionsView.setVisibility(View.GONE);
 323         }
 324     }
 325
 326
 327     /**
 328      *
 329      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 330      */
 331     private void initServerPreFragment(Bundle savedInstanceState) {
 332
 333         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 334         boolean isUrlInputAllowed = getResources().getBoolean(R.bool.show_server_url_input);
 335         if (savedInstanceState == null) {
 336             if (mAccount != null) {
 337                 mServerInfo.mBaseUrl = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_BASE_URL);
 338                 // TODO do next in a setter for mBaseUrl
 339                 mServerInfo.mIsSslConn = mServerInfo.mBaseUrl.startsWith("https://");
 340                 String ocVersion = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_VERSION);
 341                 if (ocVersion != null) {
 342                     mServerInfo.mVersion = new OwnCloudVersion(ocVersion);
 343                 }
 344             } else {
 345                 mServerInfo.mBaseUrl = getString(R.string.server_url).trim();
 346                 mServerInfo.mIsSslConn = mServerInfo.mBaseUrl.startsWith("https://");
 347             }
 348         } else {
 349             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 350             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 351
 352             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 353             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 354
 355             // TODO parcelable
 356             mServerInfo.mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 357             mServerInfo.mBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 358             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 359             if (ocVersion != null) {
 360                 mServerInfo.mVersion = new OwnCloudVersion(ocVersion);
 361             }
 362             mServerInfo.mAuthMethod = AuthenticationMethod.valueOf(
 363                     savedInstanceState.getString(KEY_SERVER_AUTH_METHOD));
 364
 365         }
 366
 367         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 368         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 369         // Convert IDN to Unicode
 370         mHostUrlInput.setText(DisplayUtils.convertIdn(mServerInfo.mBaseUrl, false));
 371         if (mAction != ACTION_CREATE) {
 372             /// lock things that should not change
 373             mHostUrlInput.setEnabled(false);
 374             mHostUrlInput.setFocusable(false);
 375         }
 376         if (isUrlInputAllowed) {
 377             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 378         } else {
 379             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 380             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 381         }
 382         showRefreshButton(mServerIsChecked && !mServerIsValid &&
 383                 mWaitingForOpId > Integer.MAX_VALUE);
 384         mServerStatusView = (TextView) findViewById(R.id.server_status_text);
 385         showServerStatus();
 386
 387         /// step 3 - bind some listeners and options
 388         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 389         mHostUrlInput.setOnEditorActionListener(this);
 390
 391         /// step 4 - create listeners that will be bound at onResume
 392         mHostUrlInputWatcher = new TextWatcher() {
 393
 394             @Override
 395             public void afterTextChanged(Editable s) {
 396                 if (mOkButton.isEnabled() &&
 397                         !mServerInfo.mBaseUrl.equals(
 398                                 normalizeUrl(s.toString(), mServerInfo.mIsSslConn))) {
 399                     mOkButton.setEnabled(false);
 400                 }
 401             }
 402
 403             @Override
 404             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 405             }
 406
 407             @Override
 408             public void onTextChanged(CharSequence s, int start, int before, int count) {
 409                 if (mAuthStatusIcon != 0) {
 410                     Log_OC.d(TAG, "onTextChanged: hiding authentication status");
 411                     mAuthStatusIcon = 0;
 412                     mAuthStatusText = 0;
 413                     showAuthStatus();
 414                 }
 415             }
 416         };
 417
 418
 419         // TODO find out if this is really necessary, or if it can done in a different way
 420         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 421             @Override
 422             public boolean onTouch(View view, MotionEvent event) {
 423                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 424                     if (
 425                             AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(
 426                                     MainApp.getAccountType()
 427                                     ).equals(mAuthTokenType) &&
 428                             mHostUrlInput.hasFocus()
 429                     ) {
 430                         checkOcServer();
 431                     }
 432                 }
 433                 return false;
 434             }
 435         });
 436
 437
 438         /// step 4 - mark automatic check to be started when OperationsService is ready
 439         mPendingAutoCheck = (savedInstanceState == null &&
 440                 (mAction != ACTION_CREATE || !isUrlInputAllowed));
 441     }
 442
 443
 444     /**
 445      *
 446      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 447      */
 448     private void initAuthorizationPreFragment(Bundle savedInstanceState) {
 449
 450         /// step 0 - get UI elements in layout
 451         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 452         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 453         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 454         mUsernameInput = (EditText) findViewById(R.id.account_username);
 455         mPasswordInput = (EditText) findViewById(R.id.account_password);
 456         mAuthStatusView = (TextView) findViewById(R.id.auth_status_text);
 457
 458         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 459         String presetUserName = null;
 460         boolean isPasswordExposed = false;
 461         if (savedInstanceState == null) {
 462             if (mAccount != null) {
 463                 presetUserName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 464             }
 465
 466         } else {
 467             isPasswordExposed = savedInstanceState.getBoolean(KEY_PASSWORD_EXPOSED, false);
 468             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 469             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 470             mAuthToken = savedInstanceState.getString(KEY_AUTH_TOKEN);
 471         }
 472
 473         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 474         mOAuth2Check.setChecked(
 475                 AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType())
 476                     .equals(mAuthTokenType));
 477         if (presetUserName != null) {
 478             mUsernameInput.setText(presetUserName);
 479         }
 480         if (mAction != ACTION_CREATE) {
 481             mUsernameInput.setEnabled(false);
 482             mUsernameInput.setFocusable(false);
 483         }
 484         mPasswordInput.setText(""); // clean password to avoid social hacking
 485         if (isPasswordExposed) {
 486             showPassword();
 487         }
 488         updateAuthenticationPreFragmentVisibility();
 489         showAuthStatus();
 490         mOkButton.setEnabled(mServerIsValid);
 491
 492
 493         /// step 3 - bind listeners
 494         // bindings for password input field
 495         mPasswordInput.setOnFocusChangeListener(this);
 496         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 497         mPasswordInput.setOnEditorActionListener(this);
 498         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 499             @Override
 500             public boolean onDrawableTouch(final MotionEvent event) {
 501                 if (event.getAction() == MotionEvent.ACTION_UP) {
 502                     AuthenticatorActivity.this.onViewPasswordClick();
 503                 }
 504                 return true;
 505             }
 506         });
 507
 508     }
 509
 510
 511     /**
 512      * Changes the visibility of input elements depending on
 513      * the current authorization method.
 514      */
 515     private void updateAuthenticationPreFragmentVisibility () {
 516         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 517                 equals(mAuthTokenType)) {
 518             // SAML-based web Single Sign On
 519             mOAuth2Check.setVisibility(View.GONE);
 520             mOAuthAuthEndpointText.setVisibility(View.GONE);
 521             mOAuthTokenEndpointText.setVisibility(View.GONE);
 522             mUsernameInput.setVisibility(View.GONE);
 523             mPasswordInput.setVisibility(View.GONE);
 524
 525         } else {
 526             if (mAction == ACTION_CREATE &&
 527                     AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 528                 mOAuth2Check.setVisibility(View.VISIBLE);
 529             } else {
 530                 mOAuth2Check.setVisibility(View.GONE);
 531             }
 532
 533             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
 534                     equals(mAuthTokenType)) {
 535                 // OAuth 2 authorization
 536
 537                 mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
 538                 mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
 539                 mUsernameInput.setVisibility(View.GONE);
 540                 mPasswordInput.setVisibility(View.GONE);
 541
 542             } else {
 543                 // basic HTTP authorization
 544                 mOAuthAuthEndpointText.setVisibility(View.GONE);
 545                 mOAuthTokenEndpointText.setVisibility(View.GONE);
 546                 mUsernameInput.setVisibility(View.VISIBLE);
 547                 mPasswordInput.setVisibility(View.VISIBLE);
 548             }
 549         }
 550     }
 551
 552
 553
 554     /**
 555      * Saves relevant state before {@link #onPause()}
 556      *
 557      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag,
 558      * intended to defer the processing of the redirection caught in
 559      * {@link #onNewIntent(Intent)} until {@link #onResume()}
 560      *
 561      * See {@link #onSaveInstanceState(Bundle)}
 562      */
 563     @Override
 564     protected void onSaveInstanceState(Bundle outState) {
 565         //Log_OC.wtf(TAG, "onSaveInstanceState init" );
 566         super.onSaveInstanceState(outState);
 567
 568         /// global state
 569         outState.putString(KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 570         outState.putLong(KEY_WAITING_FOR_OP_ID, mWaitingForOpId);
 571
 572         /// Server PRE-fragment state
 573         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 574         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 575         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 576         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 577         outState.putBoolean(KEY_IS_SSL_CONN, mServerInfo.mIsSslConn);
 578         outState.putString(KEY_HOST_URL_TEXT, mServerInfo.mBaseUrl);
 579         if (mServerInfo.mVersion != null) {
 580             outState.putString(KEY_OC_VERSION, mServerInfo.mVersion.getVersion());
 581         }
 582         outState.putString(KEY_SERVER_AUTH_METHOD, mServerInfo.mAuthMethod.name());
 583
 584         /// Authentication PRE-fragment state
 585         outState.putBoolean(KEY_PASSWORD_EXPOSED, isPasswordVisible());
 586         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 587         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 588         outState.putString(KEY_AUTH_TOKEN, mAuthToken);
 589
 590         /// authentication
 591         outState.putBoolean(KEY_AUTH_IS_FIRST_ATTEMPT_TAG, mIsFirstAuthAttempt);
 592
 593         //Log_OC.wtf(TAG, "onSaveInstanceState end" );
 594     }
 595
 596
 597     /**
 598      * The redirection triggered by the OAuth authentication server as response to the
 599      * GET AUTHORIZATION request is caught here.
 600      *
 601      * To make this possible, this activity needs to be qualified with android:launchMode =
 602      * "singleTask" in the AndroidManifest.xml file.
 603      */
 604     @Override
 605     protected void onNewIntent (Intent intent) {
 606         Log_OC.d(TAG, "onNewIntent()");
 607         Uri data = intent.getData();
 608         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 609             mNewCapturedUriFromOAuth2Redirection = data;
 610         }
 611     }
 612
 613
 614     /**
 615      * The redirection triggered by the OAuth authentication server as response to the
 616      * GET AUTHORIZATION, and deferred in {@link #onNewIntent(Intent)}, is processed here.
 617      */
 618     @Override
 619     protected void onResume() {
 620         //Log_OC.wtf(TAG, "onResume init" );
 621         super.onResume();
 622
 623         // bound here to avoid spurious changes triggered by Android on device rotations
 624         mHostUrlInput.setOnFocusChangeListener(this);
 625         mHostUrlInput.addTextChangedListener(mHostUrlInputWatcher);
 626
 627         if (mNewCapturedUriFromOAuth2Redirection != null) {
 628             getOAuth2AccessTokenFromCapturedRedirection();
 629         }
 630
 631         if (mOperationsServiceBinder != null) {
 632             doOnResumeAndBound();
 633         }
 634
 635         //Log_OC.wtf(TAG, "onResume end" );
 636     }
 637
 638
 639     @Override
 640     protected void onPause() {
 641         //Log_OC.wtf(TAG, "onPause init" );
 642         if (mOperationsServiceBinder != null) {
 643             //Log_OC.wtf(TAG, "unregistering to listen for operation callbacks" );
 644             mOperationsServiceBinder.removeOperationListener(this);
 645         }
 646
 647         mHostUrlInput.removeTextChangedListener(mHostUrlInputWatcher);
 648         mHostUrlInput.setOnFocusChangeListener(null);
 649
 650         super.onPause();
 651         //Log_OC.wtf(TAG, "onPause end" );
 652     }
 653
 654     @Override
 655     protected void onDestroy() {
 656
 657         mHostUrlInputWatcher = null;
 658
 659         if (mOperationsServiceConnection != null) {
 660             unbindService(mOperationsServiceConnection);
 661             mOperationsServiceBinder = null;
 662         }
 663         super.onDestroy();
 664     }
 665
 666
 667     /**
 668      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 669      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 670      */
 671     private void getOAuth2AccessTokenFromCapturedRedirection() {
 672         /// Parse data from OAuth redirection
 673         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 674         mNewCapturedUriFromOAuth2Redirection = null;
 675
 676         /// Showing the dialog with instructions for the user.
 677         IndeterminateProgressDialog dialog =
 678                 IndeterminateProgressDialog.newInstance(R.string.auth_getting_authorization, true);
 679         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 680
 681         /// GET ACCESS TOKEN to the oAuth server
 682         Intent getServerInfoIntent = new Intent();
 683         getServerInfoIntent.setAction(OperationsService.ACTION_OAUTH2_GET_ACCESS_TOKEN);
 684
 685         getServerInfoIntent.putExtra(
 686                 OperationsService.EXTRA_SERVER_URL,
 687                 mOAuthTokenEndpointText.getText().toString().trim());
 688
 689         getServerInfoIntent.putExtra(
 690                 OperationsService.EXTRA_OAUTH2_QUERY_PARAMETERS,
 691                 queryParameters);
 692
 693         if (mOperationsServiceBinder != null) {
 694             //Log_OC.wtf(TAG, "getting access token..." );
 695             mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getServerInfoIntent);
 696         }
 697     }
 698
 699
 700
 701     /**
 702      * Handles the change of focus on the text inputs for the server URL and the password
 703      */
 704     public void onFocusChange(View view, boolean hasFocus) {
 705         if (view.getId() == R.id.hostUrlInput) {
 706             if (!hasFocus) {
 707                 onUrlInputFocusLost((TextView) view);
 708             }
 709             else {
 710                 showRefreshButton(false);
 711             }
 712
 713         } else if (view.getId() == R.id.account_password) {
 714             onPasswordFocusChanged((TextView) view, hasFocus);
 715         }
 716     }
 717
 718
 719     /**
 720      * Handles changes in focus on the text input for the server URL.
 721      *
 722      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 723      * other field. The operation to check the existence of the server in the entered URL is
 724      * started.
 725      *
 726      * When hasFocus:    user 'comes back' to write again the server URL.
 727      *
 728      * @param hostInput     TextView with the URL input field receiving the change of focus.
 729      */
 730     private void onUrlInputFocusLost(TextView hostInput) {
 731         if (!mServerInfo.mBaseUrl.equals(
 732                 normalizeUrl(mHostUrlInput.getText().toString(), mServerInfo.mIsSslConn))) {
 733             // check server again only if the user changed something in the field
 734             checkOcServer();
 735         } else {
 736             mOkButton.setEnabled(mServerIsValid);
 737             showRefreshButton(!mServerIsValid);
 738         }
 739     }
 740
 741
 742     private void checkOcServer() {
 743         String uri = mHostUrlInput.getText().toString().trim();
 744         mServerIsValid = false;
 745         mServerIsChecked = false;
 746         mOkButton.setEnabled(false);
 747         mServerInfo = new GetServerInfoOperation.ServerInfo();
 748         showRefreshButton(false);
 749
 750         if (uri.length() != 0) {
 751             // Handle internationalized domain names
 752             uri = DisplayUtils.convertIdn(uri, true);
 753             mServerStatusText = R.string.auth_testing_connection;
 754             mServerStatusIcon = R.drawable.progress_small;
 755             showServerStatus();
 756
 757             Intent getServerInfoIntent = new Intent();
 758             getServerInfoIntent.setAction(OperationsService.ACTION_GET_SERVER_INFO);
 759             getServerInfoIntent.putExtra(
 760                 OperationsService.EXTRA_SERVER_URL,
 761                 normalizeUrlSuffix(uri)
 762             );
 763             if (mOperationsServiceBinder != null) {
 764                 mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getServerInfoIntent);
 765             } else {
 766               Log_OC.wtf(TAG, "Server check tried with OperationService unbound!" );
 767             }
 768
 769         } else {
 770             mServerStatusText = 0;
 771             mServerStatusIcon = 0;
 772             showServerStatus();
 773         }
 774     }
 775
 776
 777     /**
 778      * Handles changes in focus on the text input for the password (basic authorization).
 779      *
 780      * When (hasFocus), the button to toggle password visibility is shown.
 781      *
 782      * When (!hasFocus), the button is made invisible and the password is hidden.
 783      *
 784      * @param passwordInput    TextView with the password input field receiving the change of focus.
 785      * @param hasFocus          'True' if focus is received, 'false' if is lost
 786      */
 787     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 788         if (hasFocus) {
 789             showViewPasswordButton();
 790         } else {
 791             hidePassword();
 792             hidePasswordButton();
 793         }
 794     }
 795
 796
 797     private void showViewPasswordButton() {
 798         int drawable = R.drawable.ic_view;
 799         if (isPasswordVisible()) {
 800             drawable = R.drawable.ic_hide;
 801         }
 802         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 803     }
 804
 805     private boolean isPasswordVisible() {
 806         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) ==
 807                 InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 808     }
 809
 810     private void hidePasswordButton() {
 811         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 812     }
 813
 814     private void showPassword() {
 815         mPasswordInput.setInputType(
 816                 InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
 817         );
 818         showViewPasswordButton();
 819     }
 820
 821     private void hidePassword() {
 822         mPasswordInput.setInputType(
 823                 InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD
 824         );
 825         showViewPasswordButton();
 826     }
 827
 828     /**
 829      * Checks the credentials of the user in the root of the ownCloud server
 830      * before creating a new local account.
 831      *
 832      * For basic authorization, a check of existence of the root folder is
 833      * performed.
 834      *
 835      * For OAuth, starts the flow to get an access token; the credentials test
 836      * is postponed until it is available.
 837      *
 838      * IMPORTANT ENTRY POINT 4
 839      *
 840      * @param view      OK button
 841      */
 842     public void onOkClick(View view) {
 843         // this check should be unnecessary
 844         if (mServerInfo.mVersion == null ||
 845                 !mServerInfo.mVersion.isVersionValid()  ||
 846                 mServerInfo.mBaseUrl == null ||
 847                 mServerInfo.mBaseUrl.length() == 0) {
 848             mServerStatusIcon = R.drawable.common_error;
 849             mServerStatusText = R.string.auth_wtf_reenter_URL;
 850             showServerStatus();
 851             mOkButton.setEnabled(false);
 852             //Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 853             return;
 854         }
 855
 856         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
 857                 equals(mAuthTokenType)) {
 858
 859             startOauthorization();
 860         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 861                 equals(mAuthTokenType)) {
 862
 863             startSamlBasedFederatedSingleSignOnAuthorization();
 864         } else {
 865             checkBasicAuthorization();
 866         }
 867     }
 868
 869
 870     /**
 871      * Tests the credentials entered by the user performing a check of existence on
 872      * the root folder of the ownCloud server.
 873      */
 874     private void checkBasicAuthorization() {
 875         /// get basic credentials entered by user
 876         String username = mUsernameInput.getText().toString();
 877         String password = mPasswordInput.getText().toString();
 878
 879         /// be gentle with the user
 880         IndeterminateProgressDialog dialog =
 881                 IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
 882         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 883
 884         /// validate credentials accessing the root folder
 885         accessRootFolderRemoteOperation(username, password);
 886
 887     }
 888
 889     private void accessRootFolderRemoteOperation(String username, String password) {
 890         // delete the account if the token has changed
 891         if (mAction == ACTION_UPDATE_TOKEN || mAction == ACTION_UPDATE_EXPIRED_TOKEN) {
 892             // Remove the cookies in AccountManager
 893             mAccountMgr.setUserData(mAccount, Constants.KEY_COOKIES, null);
 894         }
 895
 896         AuthenticatorAsyncTask asyncTask = new AuthenticatorAsyncTask(this);
 897         String[] params = { mServerInfo.mBaseUrl, username, password, mAuthToken, mAuthTokenType};
 898         asyncTask.execute(params);
 899
 900     }
 901
 902     /**
 903      * Starts the OAuth 'grant type' flow to get an access token, with
 904      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 905      */
 906     private void startOauthorization() {
 907         // be gentle with the user
 908         mAuthStatusIcon = R.drawable.progress_small;
 909         mAuthStatusText = R.string.oauth_login_connection;
 910         showAuthStatus();
 911
 912         // GET AUTHORIZATION request
 913         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 914         Uri.Builder uriBuilder = uri.buildUpon();
 915         uriBuilder.appendQueryParameter(
 916                 OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type)
 917         );
 918         uriBuilder.appendQueryParameter(
 919                 OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri)
 920         );
 921         uriBuilder.appendQueryParameter(
 922                 OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id)
 923         );
 924         uriBuilder.appendQueryParameter(
 925                 OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope)
 926         );
 927         uri = uriBuilder.build();
 928         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 929         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 930         startActivity(i);
 931     }
 932
 933
 934     /**
 935      * Starts the Web Single Sign On flow to get access to the root folder
 936      * in the server.
 937      */
 938     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 939         // be gentle with the user
 940         mAuthStatusIcon = R.drawable.progress_small;
 941         mAuthStatusText = R.string.auth_connecting_auth_server;
 942         showAuthStatus();
 943         IndeterminateProgressDialog dialog =
 944                 IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
 945         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 946
 947         /// validate credentials accessing the root folder
 948         accessRootFolderRemoteOperation("", "");
 949
 950     }
 951
 952     /**
 953      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 954      *
 955      * Dispatches the operation flow to the right method.
 956      */
 957     @Override
 958     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 959
 960         if (operation instanceof GetServerInfoOperation) {
 961             if (operation.hashCode() == mWaitingForOpId) {
 962                 onGetServerInfoFinish(result);
 963             }   // else nothing ; only the last check operation is considered;
 964                 // multiple can be started if the user amends a URL quickly
 965
 966         } else if (operation instanceof OAuth2GetAccessToken) {
 967             onGetOAuthAccessTokenFinish(result);
 968
 969         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 970             // TODO : remove this response??
 971             //Log_OC.wtf(TAG, "received detection response through callback" );
 972             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 973                     equals(mAuthTokenType)) {
 974                 onSamlBasedFederatedSingleSignOnAuthorizationStart(result);
 975
 976             } else {
 977                 onAuthorizationCheckFinish(result);
 978             }
 979         } else if (operation instanceof GetRemoteUserNameOperation) {
 980             onGetUserNameFinish(result);
 981         }
 982
 983     }
 984
 985     private void onGetUserNameFinish(RemoteOperationResult result) {
 986         mWaitingForOpId = Long.MAX_VALUE;
 987         if (result.isSuccess()) {
 988             boolean success = false;
 989             String username = (String) result.getData().get(0);
 990
 991             if ( mAction == ACTION_CREATE) {
 992                 mUsernameInput.setText(username);
 993                 success = createAccount();
 994             } else {
 995
 996                 if (!mUsernameInput.getText().toString().equals(username)) {
 997                     // fail - not a new account, but an existing one; disallow
 998                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 999                     mAuthToken = "";
1000                     updateAuthStatusIconAndText(result);
1001                     showAuthStatus();
1002                     Log_OC.d(TAG, result.getLogMessage());
1003                 } else {
1004                     try {
1005                         updateAccountAuthentication();
1006                         success = true;
1007
1008                     } catch (AccountNotFoundException e) {
1009                         Log_OC.e(TAG, "Account " + mAccount + " was removed!", e);
1010                         Toast.makeText(this, R.string.auth_account_does_not_exist, Toast.LENGTH_SHORT).show();
1011                         finish();
1012                     }
1013                 }
1014             }
1015
1016             if (success)
1017                 finish();
1018         } else {
1019             updateStatusIconFailUserName();
1020             showAuthStatus();
1021             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
1022         }
1023
1024     }
1025
1026     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperationResult result) {
1027         mWaitingForOpId = Long.MAX_VALUE;
1028         dismissDialog(WAIT_DIALOG_TAG);
1029
1030         if (result.isIdPRedirection()) {
1031             String targetUrl = mServerInfo.mBaseUrl
1032                     + AccountUtils.getWebdavPath(mServerInfo.mVersion, mAuthTokenType);
1033
1034             // Show dialog
1035             SamlWebViewDialog dialog = SamlWebViewDialog.newInstance(targetUrl, targetUrl);
1036             dialog.show(getSupportFragmentManager(), SAML_DIALOG_TAG);
1037
1038             mAuthStatusIcon = 0;
1039             mAuthStatusText = 0;
1040
1041         } else {
1042             mAuthStatusIcon = R.drawable.common_error;
1043             mAuthStatusText = R.string.auth_unsupported_auth_method;
1044
1045         }
1046         showAuthStatus();
1047     }
1048
1049
1050     /**
1051      * Processes the result of the server check performed when the user finishes the enter of the
1052      * server URL.
1053      *
1054      * @param result        Result of the check.
1055      */
1056     private void onGetServerInfoFinish(RemoteOperationResult result) {
1057         /// update activity state
1058         mServerIsChecked = true;
1059         mWaitingForOpId = Long.MAX_VALUE;
1060
1061         // update server status, but don't show it yet
1062         updateServerStatusIconAndText(result);
1063
1064         if (result.isSuccess()) {
1065             /// SUCCESS means:
1066             //      1. connection succeeded, and we know if it's SSL or not
1067             //      2. server is installed
1068             //      3. we got the server version
1069             //      4. we got the authentication method required by the server
1070             mServerInfo = (GetServerInfoOperation.ServerInfo) (result.getData().get(0));
1071
1072             if (!authSupported(mServerInfo.mAuthMethod)) {
1073
1074                 updateServerStatusIconNoRegularAuth();  // overrides updateServerStatusIconAndText()
1075                 mServerIsValid = false;
1076
1077             } else {
1078                 mServerIsValid = true;
1079             }
1080
1081         } else {
1082             mServerIsValid = false;
1083         }
1084
1085         // refresh UI
1086         showRefreshButton(!mServerIsValid);
1087         showServerStatus();
1088         mOkButton.setEnabled(mServerIsValid);
1089
1090         /// very special case (TODO: move to a common place for all the remote operations)
1091         if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1092             showUntrustedCertDialog(result);
1093         }
1094     }
1095
1096
1097     private boolean authSupported(AuthenticationMethod authMethod) {
1098         String basic = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1099         String oAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1100         String saml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
1101
1102         return (( mAuthTokenType.equals(basic) &&
1103                     authMethod.equals(AuthenticationMethod.BASIC_HTTP_AUTH) ) ||
1104                 ( mAuthTokenType.equals(oAuth) &&
1105                     authMethod.equals(AuthenticationMethod.BEARER_TOKEN)) ||
1106                 ( mAuthTokenType.equals(saml)  &&
1107                     authMethod.equals(AuthenticationMethod.SAML_WEB_SSO))
1108         );
1109     }
1110
1111
1112     // TODO remove, if possible
1113     private String normalizeUrl(String url, boolean sslWhenUnprefixed) {
1114         if (url != null && url.length() > 0) {
1115             url = url.trim();
1116             if (!url.toLowerCase().startsWith("http://") &&
1117                     !url.toLowerCase().startsWith("https://")) {
1118                 if (sslWhenUnprefixed) {
1119                     url = "https://" + url;
1120                 } else {
1121                     url = "http://" + url;
1122                 }
1123             }
1124
1125             url = normalizeUrlSuffix(url);
1126         }
1127         return (url != null ? url : "");
1128     }
1129
1130
1131     private String normalizeUrlSuffix(String url) {
1132         if (url.endsWith("/")) {
1133             url = url.substring(0, url.length() - 1);
1134         }
1135         url = trimUrlWebdav(url);
1136         return url;
1137     }
1138
1139
1140     // TODO remove, if possible
1141     private String trimUrlWebdav(String url){
1142         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
1143             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
1144         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
1145             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
1146         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
1147             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
1148         }
1149         return (url != null ? url : "");
1150     }
1151
1152
1153     /**
1154      * Chooses the right icon and text to show to the user for the received operation result.
1155      *
1156      * @param result    Result of a remote operation performed in this activity
1157      */
1158     private void updateServerStatusIconAndText(RemoteOperationResult result) {
1159         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1160
1161         switch (result.getCode()) {
1162         case OK_SSL:
1163             mServerStatusIcon = android.R.drawable.ic_secure;
1164             mServerStatusText = R.string.auth_secure_connection;
1165             break;
1166
1167         case OK_NO_SSL:
1168         case OK:
1169             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1170                 mServerStatusText = R.string.auth_connection_established;
1171                 mServerStatusIcon = R.drawable.ic_ok;
1172             } else {
1173                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
1174                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
1175             }
1176             break;
1177
1178         case NO_NETWORK_CONNECTION:
1179             mServerStatusIcon = R.drawable.no_network;
1180             mServerStatusText = R.string.auth_no_net_conn_title;
1181             break;
1182
1183         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1184             mServerStatusText = R.string.auth_ssl_unverified_server_title;
1185             break;
1186         case BAD_OC_VERSION:
1187             mServerStatusText = R.string.auth_bad_oc_version_title;
1188             break;
1189         case WRONG_CONNECTION:
1190             mServerStatusText = R.string.auth_wrong_connection_title;
1191             break;
1192         case TIMEOUT:
1193             mServerStatusText = R.string.auth_timeout_title;
1194             break;
1195         case INCORRECT_ADDRESS:
1196             mServerStatusText = R.string.auth_incorrect_address_title;
1197             break;
1198         case SSL_ERROR:
1199             mServerStatusText = R.string.auth_ssl_general_error_title;
1200             break;
1201         case UNAUTHORIZED:
1202             mServerStatusText = R.string.auth_unauthorized;
1203             break;
1204         case HOST_NOT_AVAILABLE:
1205             mServerStatusText = R.string.auth_unknown_host_title;
1206             break;
1207         case INSTANCE_NOT_CONFIGURED:
1208             mServerStatusText = R.string.auth_not_configured_title;
1209             break;
1210         case FILE_NOT_FOUND:
1211             mServerStatusText = R.string.auth_incorrect_path_title;
1212             break;
1213         case OAUTH2_ERROR:
1214             mServerStatusText = R.string.auth_oauth_error;
1215             break;
1216         case OAUTH2_ERROR_ACCESS_DENIED:
1217             mServerStatusText = R.string.auth_oauth_error_access_denied;
1218             break;
1219         case UNHANDLED_HTTP_CODE:
1220         case UNKNOWN_ERROR:
1221             mServerStatusText = R.string.auth_unknown_error_title;
1222             break;
1223         case OK_REDIRECT_TO_NON_SECURE_CONNECTION:
1224             mServerStatusIcon = android.R.drawable.ic_partial_secure;
1225             mServerStatusText = R.string.auth_redirect_non_secure_connection_title;
1226             break;
1227         default:
1228             mServerStatusText = 0;
1229             mServerStatusIcon = 0;
1230         }
1231     }
1232
1233
1234     /**
1235      * Chooses the right icon and text to show to the user for the received operation result.
1236      *
1237      * @param result    Result of a remote operation performed in this activity
1238      */
1239     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1240         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1241
1242         switch (result.getCode()) {
1243         case OK_SSL:
1244             mAuthStatusIcon = android.R.drawable.ic_secure;
1245             mAuthStatusText = R.string.auth_secure_connection;
1246             break;
1247
1248         case OK_NO_SSL:
1249         case OK:
1250             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1251                 mAuthStatusText = R.string.auth_connection_established;
1252                 mAuthStatusIcon = R.drawable.ic_ok;
1253             } else {
1254                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1255                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1256             }
1257             break;
1258
1259         case NO_NETWORK_CONNECTION:
1260             mAuthStatusIcon = R.drawable.no_network;
1261             mAuthStatusText = R.string.auth_no_net_conn_title;
1262             break;
1263
1264         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1265             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1266             break;
1267         case BAD_OC_VERSION:
1268             mAuthStatusText = R.string.auth_bad_oc_version_title;
1269             break;
1270         case WRONG_CONNECTION:
1271             mAuthStatusText = R.string.auth_wrong_connection_title;
1272             break;
1273         case TIMEOUT:
1274             mAuthStatusText = R.string.auth_timeout_title;
1275             break;
1276         case INCORRECT_ADDRESS:
1277             mAuthStatusText = R.string.auth_incorrect_address_title;
1278             break;
1279         case SSL_ERROR:
1280             mAuthStatusText = R.string.auth_ssl_general_error_title;
1281             break;
1282         case UNAUTHORIZED:
1283             mAuthStatusText = R.string.auth_unauthorized;
1284             break;
1285         case HOST_NOT_AVAILABLE:
1286             mAuthStatusText = R.string.auth_unknown_host_title;
1287             break;
1288         case INSTANCE_NOT_CONFIGURED:
1289             mAuthStatusText = R.string.auth_not_configured_title;
1290             break;
1291         case FILE_NOT_FOUND:
1292             mAuthStatusText = R.string.auth_incorrect_path_title;
1293             break;
1294         case OAUTH2_ERROR:
1295             mAuthStatusText = R.string.auth_oauth_error;
1296             break;
1297         case OAUTH2_ERROR_ACCESS_DENIED:
1298             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1299             break;
1300         case ACCOUNT_NOT_NEW:
1301             mAuthStatusText = R.string.auth_account_not_new;
1302             break;
1303         case ACCOUNT_NOT_THE_SAME:
1304             mAuthStatusText = R.string.auth_account_not_the_same;
1305             break;
1306         case UNHANDLED_HTTP_CODE:
1307         case UNKNOWN_ERROR:
1308             mAuthStatusText = R.string.auth_unknown_error_title;
1309             break;
1310         default:
1311             mAuthStatusText = 0;
1312             mAuthStatusIcon = 0;
1313         }
1314     }
1315
1316
1317     private void updateStatusIconFailUserName(){
1318         mAuthStatusIcon = R.drawable.common_error;
1319         mAuthStatusText = R.string.auth_fail_get_user_name;
1320     }
1321
1322     private void updateServerStatusIconNoRegularAuth(){
1323         mServerStatusIcon = R.drawable.common_error;
1324         mServerStatusText = R.string.auth_can_not_auth_against_server;
1325     }
1326
1327     /**
1328      * Processes the result of the request for and access token send
1329      * to an OAuth authorization server.
1330      *
1331      * @param result        Result of the operation.
1332      */
1333     private void onGetOAuthAccessTokenFinish(RemoteOperationResult result) {
1334         mWaitingForOpId = Long.MAX_VALUE;
1335         dismissDialog(WAIT_DIALOG_TAG);
1336
1337         if (result.isSuccess()) {
1338             /// be gentle with the user
1339             IndeterminateProgressDialog dialog =
1340                     IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
1341             dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
1342
1343             /// time to test the retrieved access token on the ownCloud server
1344             @SuppressWarnings("unchecked")
1345             Map<String, String> tokens = (Map<String, String>)(result.getData().get(0));
1346             mAuthToken = tokens.get(OAuth2Constants.KEY_ACCESS_TOKEN);
1347             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1348
1349             accessRootFolderRemoteOperation("", "");
1350
1351         } else {
1352             updateAuthStatusIconAndText(result);
1353             showAuthStatus();
1354             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1355         }
1356     }
1357
1358
1359     /**
1360      * Processes the result of the access check performed to try the user credentials.
1361      *
1362      * Creates a new account through the AccountManager.
1363      *
1364      * @param result        Result of the operation.
1365      */
1366     private void onAuthorizationCheckFinish(RemoteOperationResult result) {
1367         mWaitingForOpId = Long.MAX_VALUE;
1368         dismissDialog(WAIT_DIALOG_TAG);
1369
1370         if (result.isSuccess()) {
1371             Log_OC.d(TAG, "Successful access - time to save the account");
1372
1373             boolean success = false;
1374             if (mAction == ACTION_CREATE) {
1375                 success = createAccount();
1376
1377             } else {
1378                 try {
1379                     updateAccountAuthentication();
1380                     success = true;
1381
1382                 } catch (AccountNotFoundException e) {
1383                     Log_OC.e(TAG, "Account " + mAccount + " was removed!", e);
1384                     Toast.makeText(this, R.string.auth_account_does_not_exist, Toast.LENGTH_SHORT).show();
1385                     finish();
1386                 }
1387             }
1388
1389             if (success) {
1390                 finish();
1391             }
1392
1393         } else if (result.isServerFail() || result.isException()) {
1394             /// server errors or exceptions in authorization take to requiring a new check of
1395             /// the server
1396             mServerIsChecked = true;
1397             mServerIsValid = false;
1398             mServerInfo = new GetServerInfoOperation.ServerInfo();
1399
1400             // update status icon and text
1401             updateServerStatusIconAndText(result);
1402             showServerStatus();
1403             mAuthStatusIcon = 0;
1404             mAuthStatusText = 0;
1405             showAuthStatus();
1406
1407             // update input controls state
1408             showRefreshButton(true);
1409             mOkButton.setEnabled(false);
1410
1411             // very special case (TODO: move to a common place for all the remote operations)
1412             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1413                 showUntrustedCertDialog(result);
1414             }
1415
1416         } else {    // authorization fail due to client side - probably wrong credentials
1417             updateAuthStatusIconAndText(result);
1418             showAuthStatus();
1419             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1420         }
1421     }
1422
1423
1424
1425
1426     /**
1427      * Updates the authentication token.
1428      *
1429      * Sets the proper response so that the AccountAuthenticator that started this activity
1430      * saves a new authorization token for mAccount.
1431      *
1432      * Kills the session kept by OwnCloudClientManager so that a new one will created with
1433      * the new credentials when needed.
1434      */
1435     private void updateAccountAuthentication() throws AccountNotFoundException {
1436
1437         OwnCloudClientManagerFactory.getDefaultSingleton().removeClientFor(
1438             new OwnCloudAccount(mAccount, this)
1439         );
1440
1441         Bundle response = new Bundle();
1442         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1443         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1444
1445         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
1446                 equals(mAuthTokenType)) {
1447             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1448             // the next line is necessary, notifications are calling directly to the
1449             // AuthenticatorActivity to update, without AccountManager intervention
1450             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1451
1452         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1453                 equals(mAuthTokenType)) {
1454
1455             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1456             // the next line is necessary; by now, notifications are calling directly to the
1457             // AuthenticatorActivity to update, without AccountManager intervention
1458             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1459
1460         } else {
1461             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1462             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1463         }
1464         setAccountAuthenticatorResult(response);
1465
1466     }
1467
1468
1469     /**
1470      * Creates a new account through the Account Authenticator that started this activity.
1471      *
1472      * This makes the account permanent.
1473      *
1474      * TODO Decide how to name the OAuth accounts
1475      */
1476     private boolean createAccount() {
1477         /// create and save new ownCloud account
1478         boolean isOAuth = AccountTypeUtils.
1479                 getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1480         boolean isSaml =  AccountTypeUtils.
1481                 getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1482
1483         Uri uri = Uri.parse(mServerInfo.mBaseUrl);
1484         String username = mUsernameInput.getText().toString().trim();
1485         if (isOAuth) {
1486             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1487         }
1488         String accountName = com.owncloud.android.lib.common.accounts.AccountUtils.
1489                 buildAccountName(uri, username);
1490         Account newAccount = new Account(accountName, MainApp.getAccountType());
1491         if (AccountUtils.exists(newAccount, getApplicationContext())) {
1492             // fail - not a new account, but an existing one; disallow
1493             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1494             updateAuthStatusIconAndText(result);
1495             showAuthStatus();
1496             Log_OC.d(TAG, result.getLogMessage());
1497             return false;
1498
1499         } else {
1500             mAccount = newAccount;
1501
1502             if (isOAuth || isSaml) {
1503                 // with external authorizations, the password is never input in the app
1504                 mAccountMgr.addAccountExplicitly(mAccount, "", null);
1505             } else {
1506                 mAccountMgr.addAccountExplicitly(
1507                         mAccount, mPasswordInput.getText().toString(), null
1508                 );
1509             }
1510
1511             /// add the new account as default in preferences, if there is none already
1512             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1513             if (defaultAccount == null) {
1514                 SharedPreferences.Editor editor = PreferenceManager
1515                         .getDefaultSharedPreferences(this).edit();
1516                 editor.putString("select_oc_account", accountName);
1517                 editor.commit();
1518             }
1519
1520             /// prepare result to return to the Authenticator
1521             //  TODO check again what the Authenticator makes with it; probably has the same
1522             //  effect as addAccountExplicitly, but it's not well done
1523             final Intent intent = new Intent();
1524             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1525             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1526             /*if (!isOAuth)
1527                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1528             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1529             if (isOAuth || isSaml) {
1530                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1531             }
1532             /// add user data to the new account; TODO probably can be done in the last parameter
1533             //      addAccountExplicitly, or in KEY_USERDATA
1534             mAccountMgr.setUserData(
1535                     mAccount, Constants.KEY_OC_VERSION,    mServerInfo.mVersion.getVersion()
1536             );
1537             mAccountMgr.setUserData(
1538                     mAccount, Constants.KEY_OC_BASE_URL,   mServerInfo.mBaseUrl
1539             );
1540
1541             if (isSaml) {
1542                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1543             } else if (isOAuth) {
1544                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1545             }
1546
1547             setAccountAuthenticatorResult(intent.getExtras());
1548             setResult(RESULT_OK, intent);
1549
1550             return true;
1551         }
1552     }
1553
1554
1555     /**
1556      * Starts and activity to open the 'new account' page in the ownCloud web site
1557      *
1558      * @param view      'Account register' button
1559      */
1560     public void onRegisterClick(View view) {
1561         Intent register = new Intent(
1562                 Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url))
1563         );
1564         setResult(RESULT_CANCELED);
1565         startActivity(register);
1566     }
1567
1568
1569     /**
1570      * Updates the content and visibility state of the icon and text associated
1571      * to the last check on the ownCloud server.
1572      */
1573     private void showServerStatus() {
1574         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1575             mServerStatusView.setVisibility(View.INVISIBLE);
1576
1577         } else {
1578             mServerStatusView.setText(mServerStatusText);
1579             mServerStatusView.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1580             mServerStatusView.setVisibility(View.VISIBLE);
1581         }
1582
1583     }
1584
1585
1586     /**
1587      * Updates the content and visibility state of the icon and text associated
1588      * to the interactions with the OAuth authorization server.
1589      */
1590     private void showAuthStatus() {
1591         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1592             mAuthStatusView.setVisibility(View.INVISIBLE);
1593
1594         } else {
1595             mAuthStatusView.setText(mAuthStatusText);
1596             mAuthStatusView.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1597             mAuthStatusView.setVisibility(View.VISIBLE);
1598         }
1599     }
1600
1601
1602     private void showRefreshButton (boolean show) {
1603         if (show)  {
1604             mRefreshButton.setVisibility(View.VISIBLE);
1605         } else {
1606             mRefreshButton.setVisibility(View.GONE);
1607         }
1608     }
1609
1610     /**
1611      * Called when the refresh button in the input field for ownCloud host is clicked.
1612      *
1613      * Performs a new check on the URL in the input field.
1614      *
1615      * @param view      Refresh 'button'
1616      */
1617     public void onRefreshClick(View view) {
1618         checkOcServer();
1619     }
1620
1621
1622     /**
1623      * Called when the eye icon in the password field is clicked.
1624      *
1625      * Toggles the visibility of the password in the field.
1626      */
1627     public void onViewPasswordClick() {
1628         int selectionStart = mPasswordInput.getSelectionStart();
1629         int selectionEnd = mPasswordInput.getSelectionEnd();
1630         if (isPasswordVisible()) {
1631             hidePassword();
1632         } else {
1633             showPassword();
1634         }
1635         mPasswordInput.setSelection(selectionStart, selectionEnd);
1636     }
1637
1638
1639     /**
1640      * Called when the checkbox for OAuth authorization is clicked.
1641      *
1642      * Hides or shows the input fields for user & password.
1643      *
1644      * @param view      'View password' 'button'
1645      */
1646     public void onCheckClick(View view) {
1647         CheckBox oAuth2Check = (CheckBox)view;
1648         if (oAuth2Check.isChecked()) {
1649             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1650         } else {
1651             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1652         }
1653         updateAuthenticationPreFragmentVisibility();
1654     }
1655
1656
1657     /**
1658      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1659      *
1660      *  Used to trigger the authentication check when the user presses 'enter' after writing the
1661      *  password, or to throw the server test when the only field on screen is the URL input field.
1662      */
1663     @Override
1664     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1665         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null &&
1666                 inputField.equals(mPasswordInput)) {
1667             if (mOkButton.isEnabled()) {
1668                 mOkButton.performClick();
1669             }
1670
1671         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null &&
1672                 inputField.equals(mHostUrlInput)) {
1673             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1674                     equals(mAuthTokenType)) {
1675                 checkOcServer();
1676             }
1677         }
1678         return false;   // always return false to grant that the software keyboard is hidden anyway
1679     }
1680
1681
1682     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1683
1684         private int fuzz = 75;
1685
1686         /**
1687          * {@inheritDoc}
1688          */
1689         @Override
1690         public boolean onTouch(View view, MotionEvent event) {
1691             Drawable rightDrawable = null;
1692             if (view instanceof TextView) {
1693                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1694                 if (drawables.length > 2) {
1695                     rightDrawable = drawables[2];
1696                 }
1697             }
1698             if (rightDrawable != null) {
1699                 final int x = (int) event.getX();
1700                 final int y = (int) event.getY();
1701                 final Rect bounds = rightDrawable.getBounds();
1702                 if (    x >= (view.getRight() - bounds.width() - fuzz) &&
1703                         x <= (view.getRight() - view.getPaddingRight() + fuzz) &&
1704                         y >= (view.getPaddingTop() - fuzz) &&
1705                         y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1706
1707                     return onDrawableTouch(event);
1708                 }
1709             }
1710             return false;
1711         }
1712
1713         public abstract boolean onDrawableTouch(final MotionEvent event);
1714     }
1715
1716
1717     private void getRemoteUserNameOperation(String sessionCookie, boolean followRedirects) {
1718
1719         Intent getUserNameIntent = new Intent();
1720         getUserNameIntent.setAction(OperationsService.ACTION_GET_USER_NAME);
1721         getUserNameIntent.putExtra(OperationsService.EXTRA_SERVER_URL, mServerInfo.mBaseUrl);
1722         getUserNameIntent.putExtra(OperationsService.EXTRA_COOKIE, sessionCookie);
1723
1724         if (mOperationsServiceBinder != null) {
1725             //Log_OC.wtf(TAG, "starting getRemoteUserNameOperation..." );
1726             mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getUserNameIntent);
1727         }
1728     }
1729
1730
1731     @Override
1732     public void onSsoFinished(String sessionCookie) {
1733         if (sessionCookie != null && sessionCookie.length() > 0) {
1734             Log_OC.d(TAG, "Successful SSO - time to save the account");
1735             mAuthToken = sessionCookie;
1736             getRemoteUserNameOperation(sessionCookie, true);
1737             Fragment fd = getSupportFragmentManager().findFragmentByTag(SAML_DIALOG_TAG);
1738             if (fd != null && fd instanceof SherlockDialogFragment) {
1739                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1740                 if (d != null && d.isShowing()) {
1741                     d.dismiss();
1742                 }
1743             }
1744
1745         } else {
1746             // TODO - show fail
1747             Log_OC.d(TAG, "SSO failed");
1748         }
1749
1750     }
1751
1752     @Override
1753     public boolean onTouchEvent(MotionEvent event) {
1754         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1755                 equals(mAuthTokenType) &&
1756                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1757             checkOcServer();
1758         }
1759         return super.onTouchEvent(event);
1760     }
1761
1762
1763     /**
1764      * Show untrusted cert dialog
1765      */
1766     public void showUntrustedCertDialog(
1767             X509Certificate x509Certificate, SslError error, SslErrorHandler handler
1768         ) {
1769         // Show a dialog with the certificate info
1770         SslUntrustedCertDialog dialog = null;
1771         if (x509Certificate == null) {
1772             dialog = SslUntrustedCertDialog.newInstanceForEmptySslError(error, handler);
1773         } else {
1774             dialog = SslUntrustedCertDialog.
1775                     newInstanceForFullSslError(x509Certificate, error, handler);
1776         }
1777         FragmentManager fm = getSupportFragmentManager();
1778         FragmentTransaction ft = fm.beginTransaction();
1779         ft.addToBackStack(null);
1780         dialog.show(ft, UNTRUSTED_CERT_DIALOG_TAG);
1781     }
1782
1783
1784     /**
1785      * Show untrusted cert dialog
1786      */
1787     private void showUntrustedCertDialog(RemoteOperationResult result) {
1788         // Show a dialog with the certificate info
1789         SslUntrustedCertDialog dialog = SslUntrustedCertDialog.
1790                 newInstanceForFullSslError((CertificateCombinedException)result.getException());
1791         FragmentManager fm = getSupportFragmentManager();
1792         FragmentTransaction ft = fm.beginTransaction();
1793         ft.addToBackStack(null);
1794         dialog.show(ft, UNTRUSTED_CERT_DIALOG_TAG);
1795
1796     }
1797
1798     /**
1799      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1800      */
1801     public void onSavedCertificate() {
1802         Fragment fd = getSupportFragmentManager().findFragmentByTag(SAML_DIALOG_TAG);
1803         if (fd == null) {
1804             // if SAML dialog is not shown,
1805             // the SslDialog was shown due to an SSL error in the server check
1806             checkOcServer();
1807         }
1808     }
1809
1810     /**
1811      * Called from SslValidatorDialog when a new server certificate could not be saved
1812      * when the user requested it.
1813      */
1814     @Override
1815     public void onFailedSavingCertificate() {
1816         dismissDialog(SAML_DIALOG_TAG);
1817         Toast.makeText(this, R.string.ssl_validator_not_saved, Toast.LENGTH_LONG).show();
1818     }
1819
1820     @Override
1821     public void onCancelCertificate() {
1822         dismissDialog(SAML_DIALOG_TAG);
1823     }
1824
1825
1826     private void doOnResumeAndBound() {
1827         //Log_OC.wtf(TAG, "registering to listen for operation callbacks" );
1828         mOperationsServiceBinder.addOperationListener(AuthenticatorActivity.this, mHandler);
1829         if (mWaitingForOpId <= Integer.MAX_VALUE) {
1830             mOperationsServiceBinder.dispatchResultIfFinished((int)mWaitingForOpId, this);
1831         }
1832
1833         if (mPendingAutoCheck) {
1834             checkOcServer();
1835         }
1836     }
1837
1838
1839     private void dismissDialog(String dialogTag){
1840         Fragment frag = getSupportFragmentManager().findFragmentByTag(dialogTag);
1841         if (frag != null && frag instanceof SherlockDialogFragment) {
1842             SherlockDialogFragment dialog = (SherlockDialogFragment) frag;
1843             dialog.dismiss();
1844         }
1845     }
1846
1847
1848     /**
1849      * Implements callback methods for service binding.
1850      */
1851     private class OperationsServiceConnection implements ServiceConnection {
1852
1853         @Override
1854         public void onServiceConnected(ComponentName component, IBinder service) {
1855             if (component.equals(
1856                     new ComponentName(AuthenticatorActivity.this, OperationsService.class)
1857                 )) {
1858                 //Log_OC.wtf(TAG, "Operations service connected");
1859                 mOperationsServiceBinder = (OperationsServiceBinder) service;
1860
1861                 doOnResumeAndBound();
1862
1863             } else {
1864                 return;
1865             }
1866
1867         }
1868
1869         @Override
1870         public void onServiceDisconnected(ComponentName component) {
1871             if (component.equals(
1872                     new ComponentName(AuthenticatorActivity.this, OperationsService.class)
1873                 )) {
1874                 Log_OC.e(TAG, "Operations service crashed");
1875                 mOperationsServiceBinder = null;
1876             }
1877         }
1878
1879     }
1880
1881     /**
1882      * Create and show dialog for request authentication to the user
1883      * @param webView
1884      * @param handler
1885      */
1886     public void createAuthenticationDialog(WebView webView, HttpAuthHandler handler) {
1887
1888         // Show a dialog with the certificate info
1889         CredentialsDialogFragment dialog =
1890                 CredentialsDialogFragment.newInstanceForCredentials(webView, handler);
1891         FragmentManager fm = getSupportFragmentManager();
1892         FragmentTransaction ft = fm.beginTransaction();
1893         ft.addToBackStack(null);
1894         dialog.setCancelable(false);
1895         dialog.show(ft, CREDENTIALS_DIALOG_TAG);
1896
1897         if (!mIsFirstAuthAttempt) {
1898             Toast.makeText(
1899                     getApplicationContext(),
1900                     getText(R.string.saml_authentication_wrong_pass),
1901                     Toast.LENGTH_LONG
1902             ).show();
1903         } else {
1904             mIsFirstAuthAttempt = false;
1905         }
1906     }
1907
1908     /**
1909      * For retrieving the clicking on authentication cancel button
1910      */
1911     public void doNegativeAuthenticatioDialogClick(){
1912         mIsFirstAuthAttempt = true;
1913     }
1914
1915
1916     @Override
1917     public void onAuthenticatorTaskCallback(RemoteOperationResult result) {
1918         //Log_OC.wtf(TAG, "received detection response through callback" );
1919         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1920                 equals(mAuthTokenType)) {
1921             onSamlBasedFederatedSingleSignOnAuthorizationStart(result);
1922
1923         } else {
1924             onAuthorizationCheckFinish(result);
1925         }
1926     }
1927 }