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