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