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

   1 /* ownCloud Android client application
   2  *
   3  *   @author Bartek Przybylski
   4  *   @author David A. Velasco
   5  *   @author masensio
   6  *   Copyright (C) 2012  Bartek Przybylski
   7  *   Copyright (C) 2012-2015 ownCloud Inc.
   8  *
   9  *   This program is free software: you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License version 2,
  11  *   as published by the Free Software Foundation.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  *
  21  */
  22
  23 package com.owncloud.android.authentication;
  24
  25 import java.security.cert.X509Certificate;
  26 import java.util.Map;
  27
  28 import android.accounts.Account;
  29 import android.accounts.AccountManager;
  30 import android.app.Dialog;
  31 import android.content.ComponentName;
  32 import android.content.Context;
  33 import android.content.Intent;
  34 import android.content.ServiceConnection;
  35 import android.content.SharedPreferences;
  36 import android.graphics.Rect;
  37 import android.graphics.drawable.Drawable;
  38 import android.net.Uri;
  39 import android.net.http.SslError;
  40 import android.os.Bundle;
  41 import android.os.Handler;
  42 import android.os.IBinder;
  43 import android.preference.PreferenceManager;
  44 import android.support.v4.app.Fragment;
  45 import android.support.v4.app.FragmentManager;
  46 import android.support.v4.app.FragmentTransaction;
  47 import android.text.Editable;
  48 import android.text.InputType;
  49 import android.text.TextWatcher;
  50 import android.view.KeyEvent;
  51 import android.view.MotionEvent;
  52 import android.view.View;
  53 import android.view.View.OnFocusChangeListener;
  54 import android.view.View.OnTouchListener;
  55 import android.view.Window;
  56 import android.view.inputmethod.EditorInfo;
  57 import android.webkit.HttpAuthHandler;
  58 import android.webkit.SslErrorHandler;
  59 import android.webkit.WebView;
  60 import android.widget.Button;
  61 import android.widget.CheckBox;
  62 import android.widget.EditText;
  63 import android.widget.TextView;
  64 import android.widget.TextView.OnEditorActionListener;
  65 import android.widget.Toast;
  66
  67 import com.actionbarsherlock.app.SherlockDialogFragment;
  68 import com.owncloud.android.MainApp;
  69 import com.owncloud.android.R;
  70 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  71 import com.owncloud.android.lib.common.OwnCloudCredentials;
  72 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  73 import com.owncloud.android.lib.common.accounts.AccountTypeUtils;
  74 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  75 import com.owncloud.android.lib.common.accounts.AccountUtils.Constants;
  76 import com.owncloud.android.lib.common.network.CertificateCombinedException;
  77 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  78 import com.owncloud.android.lib.common.operations.RemoteOperation;
  79 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  80 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  81 import com.owncloud.android.lib.common.utils.Log_OC;
  82 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  83 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  84 import com.owncloud.android.operations.DetectAuthenticationMethodOperation.AuthenticationMethod;
  85 import com.owncloud.android.operations.GetServerInfoOperation;
  86 import com.owncloud.android.operations.OAuth2GetAccessToken;
  87 import com.owncloud.android.services.OperationsService;
  88 import com.owncloud.android.services.OperationsService.OperationsServiceBinder;
  89 import com.owncloud.android.ui.dialog.CredentialsDialogFragment;
  90 import com.owncloud.android.ui.dialog.IndeterminateProgressDialog;
  91 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  92 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog;
  93 import com.owncloud.android.ui.dialog.SslUntrustedCertDialog.OnSslUntrustedCertListener;
  94 import com.owncloud.android.utils.DisplayUtils;
  95
  96 /**
  97  * This Activity is used to add an ownCloud account to the App
  98  */
  99 public class AuthenticatorActivity extends AccountAuthenticatorActivity
 100         implements  OnRemoteOperationListener, OnFocusChangeListener, OnEditorActionListener,
 101         SsoWebViewClientListener, OnSslUntrustedCertListener,
 102         AuthenticatorAsyncTask.OnAuthenticatorTaskListener {
 103
 104     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
 105
 106     public static final String EXTRA_ACTION = "ACTION";
 107     public static final String EXTRA_ACCOUNT = "ACCOUNT";
 108
 109     private static final String KEY_AUTH_TOKEN_TYPE = "AUTH_TOKEN_TYPE";
 110
 111     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
 112     private static final String KEY_OC_VERSION = "OC_VERSION";
 113     private static final String KEY_SERVER_VALID = "SERVER_VALID";
 114     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
 115     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 116     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 117     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 118     private static final String KEY_PASSWORD_EXPOSED = "PASSWORD_VISIBLE";
 119     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 120     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 121     private static final String KEY_SERVER_AUTH_METHOD = "SERVER_AUTH_METHOD";
 122     private static final String KEY_WAITING_FOR_OP_ID = "WAITING_FOR_OP_ID";
 123     private static final String KEY_AUTH_TOKEN = "AUTH_TOKEN";
 124
 125     private static final String AUTH_ON = "on";
 126     private static final String AUTH_OPTIONAL = "optional";
 127
 128     public static final byte ACTION_CREATE = 0;
 129     public static final byte ACTION_UPDATE_TOKEN = 1;               // requested by the user
 130     public static final byte ACTION_UPDATE_EXPIRED_TOKEN = 2;       // detected by the app
 131
 132     private static final String UNTRUSTED_CERT_DIALOG_TAG = "UNTRUSTED_CERT_DIALOG";
 133     private static final String SAML_DIALOG_TAG = "SAML_DIALOG";
 134     private static final String WAIT_DIALOG_TAG = "WAIT_DIALOG";
 135     private static final String CREDENTIALS_DIALOG_TAG = "CREDENTIALS_DIALOG";
 136     private static final String KEY_AUTH_IS_FIRST_ATTEMPT_TAG = "KEY_AUTH_IS_FIRST_ATTEMPT";
 137
 138     private static final String KEY_USERNAME = "USERNAME";
 139     private static final String KEY_PASSWORD = "PASSWORD";
 140     private static final String KEY_ASYNC_TASK_IN_PROGRESS = "AUTH_IN_PROGRESS";
 141
 142     /// parameters from EXTRAs in starter Intent
 143     private byte mAction;
 144     private Account mAccount;
 145     private String mAuthTokenType;
 146
 147
 148     /// activity-level references / state
 149     private final Handler mHandler = new Handler();
 150     private ServiceConnection mOperationsServiceConnection = null;
 151     private OperationsServiceBinder mOperationsServiceBinder = null;
 152     private AccountManager mAccountMgr;
 153     private Uri mNewCapturedUriFromOAuth2Redirection;
 154
 155
 156     /// Server PRE-Fragment elements
 157     private EditText mHostUrlInput;
 158     private View mRefreshButton;
 159     private TextView mServerStatusView;
 160
 161     private TextWatcher mHostUrlInputWatcher;
 162     private int mServerStatusText = 0, mServerStatusIcon = 0;
 163
 164     private boolean mServerIsChecked = false;
 165     private boolean mServerIsValid = false;
 166     private boolean mPendingAutoCheck = false;
 167
 168     private GetServerInfoOperation.ServerInfo mServerInfo =
 169             new GetServerInfoOperation.ServerInfo();
 170
 171
 172     /// Authentication PRE-Fragment elements
 173     private CheckBox mOAuth2Check;
 174     private TextView mOAuthAuthEndpointText;
 175     private TextView mOAuthTokenEndpointText;
 176     private EditText mUsernameInput;
 177     private EditText mPasswordInput;
 178     private View mOkButton;
 179     private TextView mAuthStatusView;
 180
 181     private int mAuthStatusText = 0, mAuthStatusIcon = 0;
 182
 183     private String mAuthToken = "";
 184     private AuthenticatorAsyncTask mAsyncTask;
 185
 186     private boolean mIsFirstAuthAttempt;
 187
 188     /// Identifier of operation in progress which result shouldn't be lost
 189     private long mWaitingForOpId = Long.MAX_VALUE;
 190
 191     private final String BASIC_TOKEN_TYPE = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 192     private final String OAUTH_TOKEN_TYPE = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 193     private final String SAML_TOKEN_TYPE =
 194             AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 195
 196
 197     /**
 198      * {@inheritDoc}
 199      *
 200      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 201      */
 202     @Override
 203     protected void onCreate(Bundle savedInstanceState) {
 204         //Log_OC.wtf(TAG,  "onCreate init");
 205         super.onCreate(savedInstanceState);
 206         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 207
 208         mIsFirstAuthAttempt = true;
 209
 210         // bind to Operations Service
 211         mOperationsServiceConnection = new OperationsServiceConnection();
 212         if (!bindService(new Intent(this, OperationsService.class),
 213                 mOperationsServiceConnection,
 214                 Context.BIND_AUTO_CREATE)) {
 215             Toast.makeText(this,
 216                     R.string.error_cant_bind_to_operations_service,
 217                     Toast.LENGTH_LONG)
 218                         .show();
 219             finish();
 220         }
 221
 222         /// init activity state
 223         mAccountMgr = AccountManager.get(this);
 224         mNewCapturedUriFromOAuth2Redirection = null;
 225
 226         /// get input values
 227         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 228         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 229         if (savedInstanceState == null) {
 230             initAuthTokenType();
 231         } else {
 232             mAuthTokenType = savedInstanceState.getString(KEY_AUTH_TOKEN_TYPE);
 233             mWaitingForOpId = savedInstanceState.getLong(KEY_WAITING_FOR_OP_ID);
 234             mIsFirstAuthAttempt = savedInstanceState.getBoolean(KEY_AUTH_IS_FIRST_ATTEMPT_TAG);
 235         }
 236
 237         /// load user interface
 238         setContentView(R.layout.account_setup);
 239
 240         /// initialize general UI elements
 241         initOverallUi();
 242
 243         mOkButton = findViewById(R.id.buttonOK);
 244
 245         /// initialize block to be moved to single Fragment to check server and get info about it
 246         initServerPreFragment(savedInstanceState);
 247
 248         /// initialize block to be moved to single Fragment to retrieve and validate credentials
 249         initAuthorizationPreFragment(savedInstanceState);
 250
 251         //Log_OC.wtf(TAG,  "onCreate end");
 252     }
 253
 254     private void initAuthTokenType() {
 255         mAuthTokenType =
 256                 getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 257         if (mAuthTokenType == null) {
 258             if (mAccount != null) {
 259                 boolean oAuthRequired =
 260                     (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2) != null);
 261                 boolean samlWebSsoRequired = (
 262                     mAccountMgr.getUserData(
 263                         mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO
 264                     ) != null
 265                 );
 266                 mAuthTokenType = chooseAuthTokenType(oAuthRequired, samlWebSsoRequired);
 267
 268             } else {
 269                 boolean oAuthSupported = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 270                 boolean samlWebSsoSupported =
 271                         AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 272                 mAuthTokenType = chooseAuthTokenType(oAuthSupported, samlWebSsoSupported);
 273             }
 274         }
 275     }
 276
 277     private String chooseAuthTokenType(boolean oauth, boolean saml) {
 278         if (saml) {
 279             return SAML_TOKEN_TYPE;
 280         } else if (oauth) {
 281              return OAUTH_TOKEN_TYPE;
 282         } else {
 283             return BASIC_TOKEN_TYPE;
 284         }
 285     }
 286
 287
 288     /**
 289      * Configures elements in the user interface under direct control of the Activity.
 290      */
 291     private void initOverallUi() {
 292
 293         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 294         boolean isWelcomeLinkVisible = getResources().getBoolean(R.bool.show_welcome_link);
 295
 296         String instructionsMessageText = null;
 297         if (mAction == ACTION_UPDATE_EXPIRED_TOKEN) {
 298             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType())
 299                     .equals(mAuthTokenType)) {
 300                 instructionsMessageText = getString(R.string.auth_expired_oauth_token_toast);
 301
 302             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType())
 303                     .equals(mAuthTokenType)) {
 304                 instructionsMessageText = getString(R.string.auth_expired_saml_sso_token_toast);
 305
 306             } else {
 307                 instructionsMessageText = getString(R.string.auth_expired_basic_auth_toast);
 308             }
 309         }
 310
 311         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 312         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 313         welcomeLink.setVisibility(isWelcomeLinkVisible ? View.VISIBLE : View.GONE);
 314         welcomeLink.setText(
 315                 String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 316
 317         TextView instructionsView = (TextView) findViewById(R.id.instructions_message);
 318         if (instructionsMessageText != null) {
 319             instructionsView.setVisibility(View.VISIBLE);
 320             instructionsView.setText(instructionsMessageText);
 321         } else {
 322             instructionsView.setVisibility(View.GONE);
 323         }
 324     }
 325
 326
 327     /**
 328      *
 329      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 330      */
 331     private void initServerPreFragment(Bundle savedInstanceState) {
 332
 333         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 334         boolean isUrlInputAllowed = getResources().getBoolean(R.bool.show_server_url_input);
 335         if (savedInstanceState == null) {
 336             if (mAccount != null) {
 337                 mServerInfo.mBaseUrl = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_BASE_URL);
 338                 // TODO do next in a setter for mBaseUrl
 339                 mServerInfo.mIsSslConn = mServerInfo.mBaseUrl.startsWith("https://");
 340                 String ocVersion = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_VERSION);
 341                 if (ocVersion != null) {
 342                     mServerInfo.mVersion = new OwnCloudVersion(ocVersion);
 343                 }
 344             } else {
 345                 mServerInfo.mBaseUrl = getString(R.string.server_url).trim();
 346                 mServerInfo.mIsSslConn = mServerInfo.mBaseUrl.startsWith("https://");
 347             }
 348         } else {
 349             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 350             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 351
 352             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 353             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 354
 355             // TODO parcelable
 356             mServerInfo.mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 357             mServerInfo.mBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 358             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 359             if (ocVersion != null) {
 360                 mServerInfo.mVersion = new OwnCloudVersion(ocVersion);
 361             }
 362             mServerInfo.mAuthMethod = AuthenticationMethod.valueOf(
 363                     savedInstanceState.getString(KEY_SERVER_AUTH_METHOD));
 364
 365         }
 366
 367         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 368         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 369         // Convert IDN to Unicode
 370         mHostUrlInput.setText(DisplayUtils.convertIdn(mServerInfo.mBaseUrl, false));
 371         if (mAction != ACTION_CREATE) {
 372             /// lock things that should not change
 373             mHostUrlInput.setEnabled(false);
 374             mHostUrlInput.setFocusable(false);
 375         }
 376         if (isUrlInputAllowed) {
 377             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 378         } else {
 379             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 380             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 381         }
 382         showRefreshButton(mServerIsChecked && !mServerIsValid &&
 383                 mWaitingForOpId > Integer.MAX_VALUE);
 384         mServerStatusView = (TextView) findViewById(R.id.server_status_text);
 385         showServerStatus();
 386
 387         /// step 3 - bind some listeners and options
 388         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 389         mHostUrlInput.setOnEditorActionListener(this);
 390
 391         /// step 4 - create listeners that will be bound at onResume
 392         mHostUrlInputWatcher = new TextWatcher() {
 393
 394             @Override
 395             public void afterTextChanged(Editable s) {
 396                 if (mOkButton.isEnabled() &&
 397                         !mServerInfo.mBaseUrl.equals(
 398                                 normalizeUrl(s.toString(), mServerInfo.mIsSslConn))) {
 399                     mOkButton.setEnabled(false);
 400                 }
 401             }
 402
 403             @Override
 404             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 405             }
 406
 407             @Override
 408             public void onTextChanged(CharSequence s, int start, int before, int count) {
 409                 if (mAuthStatusIcon != 0) {
 410                     Log_OC.d(TAG, "onTextChanged: hiding authentication status");
 411                     mAuthStatusIcon = 0;
 412                     mAuthStatusText = 0;
 413                     showAuthStatus();
 414                 }
 415             }
 416         };
 417
 418
 419         // TODO find out if this is really necessary, or if it can done in a different way
 420         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 421             @Override
 422             public boolean onTouch(View view, MotionEvent event) {
 423                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 424                     if (
 425                             AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(
 426                                     MainApp.getAccountType()
 427                             ).equals(mAuthTokenType) &&
 428                                     mHostUrlInput.hasFocus()
 429                             ) {
 430                         checkOcServer();
 431                     }
 432                 }
 433                 return false;
 434             }
 435         });
 436
 437
 438         /// step 4 - mark automatic check to be started when OperationsService is ready
 439         mPendingAutoCheck = (savedInstanceState == null &&
 440                 (mAction != ACTION_CREATE || !isUrlInputAllowed));
 441     }
 442
 443
 444     /**
 445      *
 446      * @param savedInstanceState        Saved activity state, as in {{@link #onCreate(Bundle)}
 447      */
 448     private void initAuthorizationPreFragment(Bundle savedInstanceState) {
 449
 450         /// step 0 - get UI elements in layout
 451         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 452         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 453         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 454         mUsernameInput = (EditText) findViewById(R.id.account_username);
 455         mPasswordInput = (EditText) findViewById(R.id.account_password);
 456         mAuthStatusView = (TextView) findViewById(R.id.auth_status_text);
 457
 458         /// step 1 - load and process relevant inputs (resources, intent, savedInstanceState)
 459         String presetUserName = null;
 460         boolean isPasswordExposed = false;
 461         if (savedInstanceState == null) {
 462             if (mAccount != null) {
 463                 presetUserName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 464             }
 465
 466         } else {
 467             isPasswordExposed = savedInstanceState.getBoolean(KEY_PASSWORD_EXPOSED, false);
 468             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 469             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 470             mAuthToken = savedInstanceState.getString(KEY_AUTH_TOKEN);
 471         }
 472
 473         /// step 2 - set properties of UI elements (text, visibility, enabled...)
 474         mOAuth2Check.setChecked(
 475                 AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType())
 476                     .equals(mAuthTokenType));
 477         if (presetUserName != null) {
 478             mUsernameInput.setText(presetUserName);
 479         }
 480         if (mAction != ACTION_CREATE) {
 481             mUsernameInput.setEnabled(false);
 482             mUsernameInput.setFocusable(false);
 483         }
 484         mPasswordInput.setText(""); // clean password to avoid social hacking
 485         if (isPasswordExposed) {
 486             showPassword();
 487         }
 488         updateAuthenticationPreFragmentVisibility();
 489         showAuthStatus();
 490         mOkButton.setEnabled(mServerIsValid);
 491
 492
 493         /// step 3 - bind listeners
 494         // bindings for password input field
 495         mPasswordInput.setOnFocusChangeListener(this);
 496         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 497         mPasswordInput.setOnEditorActionListener(this);
 498         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 499             @Override
 500             public boolean onDrawableTouch(final MotionEvent event) {
 501                 if (event.getAction() == MotionEvent.ACTION_UP) {
 502                     AuthenticatorActivity.this.onViewPasswordClick();
 503                 }
 504                 return true;
 505             }
 506         });
 507
 508     }
 509
 510
 511     /**
 512      * Changes the visibility of input elements depending on
 513      * the current authorization method.
 514      */
 515     private void updateAuthenticationPreFragmentVisibility () {
 516         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 517                 equals(mAuthTokenType)) {
 518             // SAML-based web Single Sign On
 519             mOAuth2Check.setVisibility(View.GONE);
 520             mOAuthAuthEndpointText.setVisibility(View.GONE);
 521             mOAuthTokenEndpointText.setVisibility(View.GONE);
 522             mUsernameInput.setVisibility(View.GONE);
 523             mPasswordInput.setVisibility(View.GONE);
 524
 525         } else {
 526             if (mAction == ACTION_CREATE &&
 527                     AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 528                 mOAuth2Check.setVisibility(View.VISIBLE);
 529             } else {
 530                 mOAuth2Check.setVisibility(View.GONE);
 531             }
 532
 533             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
 534                     equals(mAuthTokenType)) {
 535                 // OAuth 2 authorization
 536
 537                 mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
 538                 mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
 539                 mUsernameInput.setVisibility(View.GONE);
 540                 mPasswordInput.setVisibility(View.GONE);
 541
 542             } else {
 543                 // basic HTTP authorization
 544                 mOAuthAuthEndpointText.setVisibility(View.GONE);
 545                 mOAuthTokenEndpointText.setVisibility(View.GONE);
 546                 mUsernameInput.setVisibility(View.VISIBLE);
 547                 mPasswordInput.setVisibility(View.VISIBLE);
 548             }
 549         }
 550     }
 551
 552
 553
 554     /**
 555      * Saves relevant state before {@link #onPause()}
 556      *
 557      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag,
 558      * intended to defer the processing of the redirection caught in
 559      * {@link #onNewIntent(Intent)} until {@link #onResume()}
 560      *
 561      * See {@link #onSaveInstanceState(Bundle)}
 562      */
 563     @Override
 564     protected void onSaveInstanceState(Bundle outState) {
 565         //Log_OC.wtf(TAG, "onSaveInstanceState init" );
 566         super.onSaveInstanceState(outState);
 567
 568         /// global state
 569         outState.putString(KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 570         outState.putLong(KEY_WAITING_FOR_OP_ID, mWaitingForOpId);
 571
 572         /// Server PRE-fragment state
 573         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 574         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 575         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 576         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 577         outState.putBoolean(KEY_IS_SSL_CONN, mServerInfo.mIsSslConn);
 578         outState.putString(KEY_HOST_URL_TEXT, mServerInfo.mBaseUrl);
 579         if (mServerInfo.mVersion != null) {
 580             outState.putString(KEY_OC_VERSION, mServerInfo.mVersion.getVersion());
 581         }
 582         outState.putString(KEY_SERVER_AUTH_METHOD, mServerInfo.mAuthMethod.name());
 583
 584         /// Authentication PRE-fragment state
 585         outState.putBoolean(KEY_PASSWORD_EXPOSED, isPasswordVisible());
 586         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 587         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 588         outState.putString(KEY_AUTH_TOKEN, mAuthToken);
 589
 590         /// authentication
 591         outState.putBoolean(KEY_AUTH_IS_FIRST_ATTEMPT_TAG, mIsFirstAuthAttempt);
 592
 593         /// AsyncTask (User and password)
 594         outState.putString(KEY_USERNAME, mUsernameInput.getText().toString());
 595         outState.putString(KEY_PASSWORD, mPasswordInput.getText().toString());
 596
 597         if (mAsyncTask != null) {
 598             mAsyncTask.cancel(true);
 599             outState.putBoolean(KEY_ASYNC_TASK_IN_PROGRESS, true);
 600         } else {
 601             outState.putBoolean(KEY_ASYNC_TASK_IN_PROGRESS, false);
 602         }
 603         mAsyncTask = null;
 604
 605         //Log_OC.wtf(TAG, "onSaveInstanceState end" );
 606     }
 607
 608     @Override
 609     public void onRestoreInstanceState(Bundle savedInstanceState) {
 610         super.onRestoreInstanceState(savedInstanceState);
 611
 612         // AsyncTask
 613         boolean inProgress = savedInstanceState.getBoolean(KEY_ASYNC_TASK_IN_PROGRESS);
 614         if (inProgress){
 615             String username = savedInstanceState.getString(KEY_USERNAME);
 616             String password = savedInstanceState.getString(KEY_PASSWORD);
 617
 618             OwnCloudCredentials credentials = null;
 619             if (BASIC_TOKEN_TYPE.equals(mAuthTokenType)) {
 620                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(username, password);
 621
 622             } else if (OAUTH_TOKEN_TYPE.equals(mAuthTokenType)) {
 623                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(mAuthToken);
 624
 625             }
 626             accessRootFolder(credentials);
 627         }
 628     }
 629
 630     /**
 631      * The redirection triggered by the OAuth authentication server as response to the
 632      * GET AUTHORIZATION request is caught here.
 633      *
 634      * To make this possible, this activity needs to be qualified with android:launchMode =
 635      * "singleTask" in the AndroidManifest.xml file.
 636      */
 637     @Override
 638     protected void onNewIntent (Intent intent) {
 639         Log_OC.d(TAG, "onNewIntent()");
 640         Uri data = intent.getData();
 641         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 642             mNewCapturedUriFromOAuth2Redirection = data;
 643         }
 644     }
 645
 646
 647     /**
 648      * The redirection triggered by the OAuth authentication server as response to the
 649      * GET AUTHORIZATION, and deferred in {@link #onNewIntent(Intent)}, is processed here.
 650      */
 651     @Override
 652     protected void onResume() {
 653         super.onResume();
 654
 655         // bound here to avoid spurious changes triggered by Android on device rotations
 656         mHostUrlInput.setOnFocusChangeListener(this);
 657         mHostUrlInput.addTextChangedListener(mHostUrlInputWatcher);
 658
 659         if (mNewCapturedUriFromOAuth2Redirection != null) {
 660             getOAuth2AccessTokenFromCapturedRedirection();
 661         }
 662
 663         if (mOperationsServiceBinder != null) {
 664             doOnResumeAndBound();
 665         }
 666
 667     }
 668
 669
 670     @Override
 671     protected void onPause() {
 672         if (mOperationsServiceBinder != null) {
 673             mOperationsServiceBinder.removeOperationListener(this);
 674         }
 675
 676         mHostUrlInput.removeTextChangedListener(mHostUrlInputWatcher);
 677         mHostUrlInput.setOnFocusChangeListener(null);
 678
 679         super.onPause();
 680     }
 681
 682     @Override
 683     protected void onDestroy() {
 684
 685         mHostUrlInputWatcher = null;
 686
 687         if (mOperationsServiceConnection != null) {
 688             unbindService(mOperationsServiceConnection);
 689             mOperationsServiceBinder = null;
 690         }
 691         super.onDestroy();
 692     }
 693
 694
 695     /**
 696      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 697      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 698      */
 699     private void getOAuth2AccessTokenFromCapturedRedirection() {
 700         /// Parse data from OAuth redirection
 701         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 702         mNewCapturedUriFromOAuth2Redirection = null;
 703
 704         /// Showing the dialog with instructions for the user.
 705         IndeterminateProgressDialog dialog =
 706                 IndeterminateProgressDialog.newInstance(R.string.auth_getting_authorization, true);
 707         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 708
 709         /// GET ACCESS TOKEN to the oAuth server
 710         Intent getServerInfoIntent = new Intent();
 711         getServerInfoIntent.setAction(OperationsService.ACTION_OAUTH2_GET_ACCESS_TOKEN);
 712
 713         getServerInfoIntent.putExtra(
 714                 OperationsService.EXTRA_SERVER_URL,
 715                 mOAuthTokenEndpointText.getText().toString().trim());
 716
 717         getServerInfoIntent.putExtra(
 718                 OperationsService.EXTRA_OAUTH2_QUERY_PARAMETERS,
 719                 queryParameters);
 720
 721         if (mOperationsServiceBinder != null) {
 722             //Log_OC.wtf(TAG, "getting access token..." );
 723             mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getServerInfoIntent);
 724         }
 725     }
 726
 727
 728
 729     /**
 730      * Handles the change of focus on the text inputs for the server URL and the password
 731      */
 732     public void onFocusChange(View view, boolean hasFocus) {
 733         if (view.getId() == R.id.hostUrlInput) {
 734             if (!hasFocus) {
 735                 onUrlInputFocusLost();
 736             }
 737             else {
 738                 showRefreshButton(false);
 739             }
 740
 741         } else if (view.getId() == R.id.account_password) {
 742             onPasswordFocusChanged(hasFocus);
 743         }
 744     }
 745
 746
 747     /**
 748      * Handles changes in focus on the text input for the server URL.
 749      *
 750      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 751      * other field. The operation to check the existence of the server in the entered URL is
 752      * started.
 753      *
 754      * When hasFocus:    user 'comes back' to write again the server URL.
 755      */
 756     private void onUrlInputFocusLost() {
 757         if (!mServerInfo.mBaseUrl.equals(
 758                 normalizeUrl(mHostUrlInput.getText().toString(), mServerInfo.mIsSslConn))) {
 759             // check server again only if the user changed something in the field
 760             checkOcServer();
 761         } else {
 762             mOkButton.setEnabled(mServerIsValid);
 763             showRefreshButton(!mServerIsValid);
 764         }
 765     }
 766
 767
 768     private void checkOcServer() {
 769         String uri = mHostUrlInput.getText().toString().trim();
 770         mServerIsValid = false;
 771         mServerIsChecked = false;
 772         mOkButton.setEnabled(false);
 773         mServerInfo = new GetServerInfoOperation.ServerInfo();
 774         showRefreshButton(false);
 775
 776         if (uri.length() != 0) {
 777             // Handle internationalized domain names
 778             uri = DisplayUtils.convertIdn(uri, true);
 779             mServerStatusText = R.string.auth_testing_connection;
 780             mServerStatusIcon = R.drawable.progress_small;
 781             showServerStatus();
 782
 783             Intent getServerInfoIntent = new Intent();
 784             getServerInfoIntent.setAction(OperationsService.ACTION_GET_SERVER_INFO);
 785             getServerInfoIntent.putExtra(
 786                 OperationsService.EXTRA_SERVER_URL,
 787                 normalizeUrlSuffix(uri)
 788             );
 789             if (mOperationsServiceBinder != null) {
 790                 mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getServerInfoIntent);
 791             } else {
 792               Log_OC.wtf(TAG, "Server check tried with OperationService unbound!" );
 793             }
 794
 795         } else {
 796             mServerStatusText = 0;
 797             mServerStatusIcon = 0;
 798             showServerStatus();
 799         }
 800     }
 801
 802
 803     /**
 804      * Handles changes in focus on the text input for the password (basic authorization).
 805      *
 806      * When (hasFocus), the button to toggle password visibility is shown.
 807      *
 808      * When (!hasFocus), the button is made invisible and the password is hidden.
 809      *
 810      * @param hasFocus          'True' if focus is received, 'false' if is lost
 811      */
 812     private void onPasswordFocusChanged(boolean hasFocus) {
 813         if (hasFocus) {
 814             showViewPasswordButton();
 815         } else {
 816             hidePassword();
 817             hidePasswordButton();
 818         }
 819     }
 820
 821
 822     private void showViewPasswordButton() {
 823         int drawable = R.drawable.ic_view;
 824         if (isPasswordVisible()) {
 825             drawable = R.drawable.ic_hide;
 826         }
 827         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 828     }
 829
 830     private boolean isPasswordVisible() {
 831         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) ==
 832                 InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 833     }
 834
 835     private void hidePasswordButton() {
 836         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 837     }
 838
 839     private void showPassword() {
 840         mPasswordInput.setInputType(
 841                 InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD
 842         );
 843         showViewPasswordButton();
 844     }
 845
 846     private void hidePassword() {
 847         mPasswordInput.setInputType(
 848                 InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD
 849         );
 850         showViewPasswordButton();
 851     }
 852
 853     /**
 854      * Checks the credentials of the user in the root of the ownCloud server
 855      * before creating a new local account.
 856      *
 857      * For basic authorization, a check of existence of the root folder is
 858      * performed.
 859      *
 860      * For OAuth, starts the flow to get an access token; the credentials test
 861      * is postponed until it is available.
 862      *
 863      * IMPORTANT ENTRY POINT 4
 864      *
 865      * @param view      OK button
 866      */
 867     public void onOkClick(View view) {
 868         // this check should be unnecessary
 869         if (mServerInfo.mVersion == null ||
 870                 !mServerInfo.mVersion.isVersionValid()  ||
 871                 mServerInfo.mBaseUrl == null ||
 872                 mServerInfo.mBaseUrl.length() == 0) {
 873             mServerStatusIcon = R.drawable.common_error;
 874             mServerStatusText = R.string.auth_wtf_reenter_URL;
 875             showServerStatus();
 876             mOkButton.setEnabled(false);
 877             return;
 878         }
 879
 880         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
 881                 equals(mAuthTokenType)) {
 882
 883             startOauthorization();
 884         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
 885                 equals(mAuthTokenType)) {
 886
 887             startSamlBasedFederatedSingleSignOnAuthorization();
 888         } else {
 889             checkBasicAuthorization();
 890         }
 891     }
 892
 893
 894     /**
 895      * Tests the credentials entered by the user performing a check of existence on
 896      * the root folder of the ownCloud server.
 897      */
 898     private void checkBasicAuthorization() {
 899         /// get basic credentials entered by user
 900         String username = mUsernameInput.getText().toString();
 901         String password = mPasswordInput.getText().toString();
 902
 903         /// be gentle with the user
 904         IndeterminateProgressDialog dialog =
 905                 IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
 906         dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
 907
 908         /// validate credentials accessing the root folder
 909         OwnCloudCredentials credentials = OwnCloudCredentialsFactory.newBasicCredentials(username, password);
 910         accessRootFolder(credentials);
 911     }
 912
 913     private void accessRootFolder(OwnCloudCredentials credentials) {
 914         mAsyncTask = new AuthenticatorAsyncTask(this);
 915         Object[] params = { mServerInfo.mBaseUrl, credentials };
 916         mAsyncTask.execute(params);
 917     }
 918
 919
 920     /**
 921      * Starts the OAuth 'grant type' flow to get an access token, with
 922      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 923      */
 924     private void startOauthorization() {
 925         // be gentle with the user
 926         mAuthStatusIcon = R.drawable.progress_small;
 927         mAuthStatusText = R.string.oauth_login_connection;
 928         showAuthStatus();
 929
 930         // GET AUTHORIZATION request
 931         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 932         Uri.Builder uriBuilder = uri.buildUpon();
 933         uriBuilder.appendQueryParameter(
 934                 OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type)
 935         );
 936         uriBuilder.appendQueryParameter(
 937                 OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri)
 938         );
 939         uriBuilder.appendQueryParameter(
 940                 OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id)
 941         );
 942         uriBuilder.appendQueryParameter(
 943                 OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope)
 944         );
 945         uri = uriBuilder.build();
 946         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 947         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 948         startActivity(i);
 949     }
 950
 951
 952     /**
 953      * Starts the Web Single Sign On flow to get access to the root folder
 954      * in the server.
 955      */
 956     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 957         /// be gentle with the user
 958         mAuthStatusIcon = R.drawable.progress_small;
 959         mAuthStatusText = R.string.auth_connecting_auth_server;
 960         showAuthStatus();
 961
 962         /// Show SAML-based SSO web dialog
 963         String targetUrl = mServerInfo.mBaseUrl
 964                 + AccountUtils.getWebdavPath(mServerInfo.mVersion, mAuthTokenType);
 965         SamlWebViewDialog dialog = SamlWebViewDialog.newInstance(targetUrl, targetUrl);
 966         dialog.show(getSupportFragmentManager(), SAML_DIALOG_TAG);
 967     }
 968
 969     /**
 970      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 971      *
 972      * Dispatches the operation flow to the right method.
 973      */
 974     @Override
 975     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 976
 977         if (operation instanceof GetServerInfoOperation) {
 978             if (operation.hashCode() == mWaitingForOpId) {
 979                 onGetServerInfoFinish(result);
 980             }   // else nothing ; only the last check operation is considered;
 981                 // multiple can be started if the user amends a URL quickly
 982
 983         } else if (operation instanceof OAuth2GetAccessToken) {
 984             onGetOAuthAccessTokenFinish(result);
 985
 986         } else if (operation instanceof GetRemoteUserNameOperation) {
 987             onGetUserNameFinish(result);
 988         }
 989
 990     }
 991
 992     private void onGetUserNameFinish(RemoteOperationResult result) {
 993         mWaitingForOpId = Long.MAX_VALUE;
 994         if (result.isSuccess()) {
 995             boolean success = false;
 996             String username = (String) result.getData().get(0);
 997
 998             if ( mAction == ACTION_CREATE) {
 999                 mUsernameInput.setText(username);
1000                 success = createAccount();
1001             } else {
1002
1003                 if (!mUsernameInput.getText().toString().equals(username)) {
1004                     // fail - not a new account, but an existing one; disallow
1005                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1006                     mAuthToken = "";
1007                     updateAuthStatusIconAndText(result);
1008                     showAuthStatus();
1009                     Log_OC.d(TAG, result.getLogMessage());
1010                 } else {
1011                     try {
1012                         updateAccountAuthentication();
1013                         success = true;
1014
1015                     } catch (AccountNotFoundException e) {
1016                         Log_OC.e(TAG, "Account " + mAccount + " was removed!", e);
1017                         Toast.makeText(this, R.string.auth_account_does_not_exist, Toast.LENGTH_SHORT).show();
1018                         finish();
1019                     }
1020                 }
1021             }
1022
1023             if (success)
1024                 finish();
1025         } else {
1026             updateStatusIconFailUserName();
1027             showAuthStatus();
1028             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
1029         }
1030
1031     }
1032
1033     /**
1034      * Processes the result of the server check performed when the user finishes the enter of the
1035      * server URL.
1036      *
1037      * @param result        Result of the check.
1038      */
1039     private void onGetServerInfoFinish(RemoteOperationResult result) {
1040         /// update activity state
1041         mServerIsChecked = true;
1042         mWaitingForOpId = Long.MAX_VALUE;
1043
1044         // update server status, but don't show it yet
1045         updateServerStatusIconAndText(result);
1046
1047         if (result.isSuccess()) {
1048             /// SUCCESS means:
1049             //      1. connection succeeded, and we know if it's SSL or not
1050             //      2. server is installed
1051             //      3. we got the server version
1052             //      4. we got the authentication method required by the server
1053             mServerInfo = (GetServerInfoOperation.ServerInfo) (result.getData().get(0));
1054
1055             if (!authSupported(mServerInfo.mAuthMethod)) {
1056
1057                 updateServerStatusIconNoRegularAuth();  // overrides updateServerStatusIconAndText()
1058                 mServerIsValid = false;
1059
1060             } else {
1061                 mServerIsValid = true;
1062             }
1063
1064         } else {
1065             mServerIsValid = false;
1066         }
1067
1068         // refresh UI
1069         showRefreshButton(!mServerIsValid);
1070         showServerStatus();
1071         mOkButton.setEnabled(mServerIsValid);
1072
1073         /// very special case (TODO: move to a common place for all the remote operations)
1074         if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1075             showUntrustedCertDialog(result);
1076         }
1077     }
1078
1079
1080     private boolean authSupported(AuthenticationMethod authMethod) {
1081         return (( BASIC_TOKEN_TYPE.equals(mAuthTokenType) &&
1082                     AuthenticationMethod.BASIC_HTTP_AUTH.equals(authMethod) ) ||
1083                 ( OAUTH_TOKEN_TYPE.equals(mAuthTokenType) &&
1084                     AuthenticationMethod.BEARER_TOKEN.equals(authMethod)) ||
1085                 ( SAML_TOKEN_TYPE.equals(mAuthTokenType)  &&
1086                     AuthenticationMethod.SAML_WEB_SSO.equals(authMethod))
1087         );
1088     }
1089
1090
1091     // TODO remove, if possible
1092     private String normalizeUrl(String url, boolean sslWhenUnprefixed) {
1093         if (url != null && url.length() > 0) {
1094             url = url.trim();
1095             if (!url.toLowerCase().startsWith("http://") &&
1096                     !url.toLowerCase().startsWith("https://")) {
1097                 if (sslWhenUnprefixed) {
1098                     url = "https://" + url;
1099                 } else {
1100                     url = "http://" + url;
1101                 }
1102             }
1103
1104             url = normalizeUrlSuffix(url);
1105         }
1106         return (url != null ? url : "");
1107     }
1108
1109
1110     private String normalizeUrlSuffix(String url) {
1111         if (url.endsWith("/")) {
1112             url = url.substring(0, url.length() - 1);
1113         }
1114         url = trimUrlWebdav(url);
1115         return url;
1116     }
1117
1118
1119     // TODO remove, if possible
1120     private String trimUrlWebdav(String url){
1121         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
1122             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
1123         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
1124             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
1125         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
1126             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
1127         }
1128         return (url != null ? url : "");
1129     }
1130
1131
1132     /**
1133      * Chooses the right icon and text to show to the user for the received operation result.
1134      *
1135      * @param result    Result of a remote operation performed in this activity
1136      */
1137     private void updateServerStatusIconAndText(RemoteOperationResult result) {
1138         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1139
1140         switch (result.getCode()) {
1141         case OK_SSL:
1142             mServerStatusIcon = android.R.drawable.ic_secure;
1143             mServerStatusText = R.string.auth_secure_connection;
1144             break;
1145
1146         case OK_NO_SSL:
1147         case OK:
1148             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1149                 mServerStatusText = R.string.auth_connection_established;
1150                 mServerStatusIcon = R.drawable.ic_ok;
1151             } else {
1152                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
1153                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
1154             }
1155             break;
1156
1157         case NO_NETWORK_CONNECTION:
1158             mServerStatusIcon = R.drawable.no_network;
1159             mServerStatusText = R.string.auth_no_net_conn_title;
1160             break;
1161
1162         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1163             mServerStatusText = R.string.auth_ssl_unverified_server_title;
1164             break;
1165         case BAD_OC_VERSION:
1166             mServerStatusText = R.string.auth_bad_oc_version_title;
1167             break;
1168         case WRONG_CONNECTION:
1169             mServerStatusText = R.string.auth_wrong_connection_title;
1170             break;
1171         case TIMEOUT:
1172             mServerStatusText = R.string.auth_timeout_title;
1173             break;
1174         case INCORRECT_ADDRESS:
1175             mServerStatusText = R.string.auth_incorrect_address_title;
1176             break;
1177         case SSL_ERROR:
1178             mServerStatusText = R.string.auth_ssl_general_error_title;
1179             break;
1180         case UNAUTHORIZED:
1181             mServerStatusText = R.string.auth_unauthorized;
1182             break;
1183         case HOST_NOT_AVAILABLE:
1184             mServerStatusText = R.string.auth_unknown_host_title;
1185             break;
1186         case INSTANCE_NOT_CONFIGURED:
1187             mServerStatusText = R.string.auth_not_configured_title;
1188             break;
1189         case FILE_NOT_FOUND:
1190             mServerStatusText = R.string.auth_incorrect_path_title;
1191             break;
1192         case OAUTH2_ERROR:
1193             mServerStatusText = R.string.auth_oauth_error;
1194             break;
1195         case OAUTH2_ERROR_ACCESS_DENIED:
1196             mServerStatusText = R.string.auth_oauth_error_access_denied;
1197             break;
1198         case UNHANDLED_HTTP_CODE:
1199         case UNKNOWN_ERROR:
1200             mServerStatusText = R.string.auth_unknown_error_title;
1201             break;
1202         case OK_REDIRECT_TO_NON_SECURE_CONNECTION:
1203             mServerStatusIcon = android.R.drawable.ic_partial_secure;
1204             mServerStatusText = R.string.auth_redirect_non_secure_connection_title;
1205             break;
1206         default:
1207             mServerStatusText = 0;
1208             mServerStatusIcon = 0;
1209         }
1210     }
1211
1212
1213     /**
1214      * Chooses the right icon and text to show to the user for the received operation result.
1215      *
1216      * @param result    Result of a remote operation performed in this activity
1217      */
1218     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1219         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1220
1221         switch (result.getCode()) {
1222         case OK_SSL:
1223             mAuthStatusIcon = android.R.drawable.ic_secure;
1224             mAuthStatusText = R.string.auth_secure_connection;
1225             break;
1226
1227         case OK_NO_SSL:
1228         case OK:
1229             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1230                 mAuthStatusText = R.string.auth_connection_established;
1231                 mAuthStatusIcon = R.drawable.ic_ok;
1232             } else {
1233                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1234                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1235             }
1236             break;
1237
1238         case NO_NETWORK_CONNECTION:
1239             mAuthStatusIcon = R.drawable.no_network;
1240             mAuthStatusText = R.string.auth_no_net_conn_title;
1241             break;
1242
1243         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1244             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1245             break;
1246         case BAD_OC_VERSION:
1247             mAuthStatusText = R.string.auth_bad_oc_version_title;
1248             break;
1249         case WRONG_CONNECTION:
1250             mAuthStatusText = R.string.auth_wrong_connection_title;
1251             break;
1252         case TIMEOUT:
1253             mAuthStatusText = R.string.auth_timeout_title;
1254             break;
1255         case INCORRECT_ADDRESS:
1256             mAuthStatusText = R.string.auth_incorrect_address_title;
1257             break;
1258         case SSL_ERROR:
1259             mAuthStatusText = R.string.auth_ssl_general_error_title;
1260             break;
1261         case UNAUTHORIZED:
1262             mAuthStatusText = R.string.auth_unauthorized;
1263             break;
1264         case HOST_NOT_AVAILABLE:
1265             mAuthStatusText = R.string.auth_unknown_host_title;
1266             break;
1267         case INSTANCE_NOT_CONFIGURED:
1268             mAuthStatusText = R.string.auth_not_configured_title;
1269             break;
1270         case FILE_NOT_FOUND:
1271             mAuthStatusText = R.string.auth_incorrect_path_title;
1272             break;
1273         case OAUTH2_ERROR:
1274             mAuthStatusText = R.string.auth_oauth_error;
1275             break;
1276         case OAUTH2_ERROR_ACCESS_DENIED:
1277             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1278             break;
1279         case ACCOUNT_NOT_NEW:
1280             mAuthStatusText = R.string.auth_account_not_new;
1281             break;
1282         case ACCOUNT_NOT_THE_SAME:
1283             mAuthStatusText = R.string.auth_account_not_the_same;
1284             break;
1285         case UNHANDLED_HTTP_CODE:
1286         case UNKNOWN_ERROR:
1287             mAuthStatusText = R.string.auth_unknown_error_title;
1288             break;
1289         default:
1290             mAuthStatusText = 0;
1291             mAuthStatusIcon = 0;
1292         }
1293     }
1294
1295
1296     private void updateStatusIconFailUserName(){
1297         mAuthStatusIcon = R.drawable.common_error;
1298         mAuthStatusText = R.string.auth_fail_get_user_name;
1299     }
1300
1301     private void updateServerStatusIconNoRegularAuth(){
1302         mServerStatusIcon = R.drawable.common_error;
1303         mServerStatusText = R.string.auth_can_not_auth_against_server;
1304     }
1305
1306     /**
1307      * Processes the result of the request for and access token send
1308      * to an OAuth authorization server.
1309      *
1310      * @param result        Result of the operation.
1311      */
1312     private void onGetOAuthAccessTokenFinish(RemoteOperationResult result) {
1313         mWaitingForOpId = Long.MAX_VALUE;
1314         dismissDialog(WAIT_DIALOG_TAG);
1315
1316         if (result.isSuccess()) {
1317             /// be gentle with the user
1318             IndeterminateProgressDialog dialog =
1319                     IndeterminateProgressDialog.newInstance(R.string.auth_trying_to_login, true);
1320             dialog.show(getSupportFragmentManager(), WAIT_DIALOG_TAG);
1321
1322             /// time to test the retrieved access token on the ownCloud server
1323             @SuppressWarnings("unchecked")
1324             Map<String, String> tokens = (Map<String, String>)(result.getData().get(0));
1325             mAuthToken = tokens.get(OAuth2Constants.KEY_ACCESS_TOKEN);
1326             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1327
1328             /// validate token accessing to root folder / getting session
1329             OwnCloudCredentials credentials = OwnCloudCredentialsFactory.newBearerCredentials(mAuthToken);
1330             accessRootFolder(credentials);
1331
1332         } else {
1333             updateAuthStatusIconAndText(result);
1334             showAuthStatus();
1335             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1336         }
1337     }
1338
1339
1340     /**
1341      * Processes the result of the access check performed to try the user credentials.
1342      *
1343      * Creates a new account through the AccountManager.
1344      *
1345      * @param result        Result of the operation.
1346      */
1347     @Override
1348     public void onAuthenticatorTaskCallback(RemoteOperationResult result) {
1349         mWaitingForOpId = Long.MAX_VALUE;
1350         dismissDialog(WAIT_DIALOG_TAG);
1351
1352         if (result.isSuccess()) {
1353             Log_OC.d(TAG, "Successful access - time to save the account");
1354
1355             boolean success = false;
1356             if (mAction == ACTION_CREATE) {
1357                 success = createAccount();
1358
1359             } else {
1360                 try {
1361                     updateAccountAuthentication();
1362                     success = true;
1363
1364                 } catch (AccountNotFoundException e) {
1365                     Log_OC.e(TAG, "Account " + mAccount + " was removed!", e);
1366                     Toast.makeText(this, R.string.auth_account_does_not_exist, Toast.LENGTH_SHORT).show();
1367                     finish();
1368                 }
1369             }
1370
1371             if (success) {
1372                 finish();
1373             }
1374
1375         } else if (result.isServerFail() || result.isException()) {
1376             /// server errors or exceptions in authorization take to requiring a new check of
1377             /// the server
1378             mServerIsChecked = true;
1379             mServerIsValid = false;
1380             mServerInfo = new GetServerInfoOperation.ServerInfo();
1381
1382             // update status icon and text
1383             updateServerStatusIconAndText(result);
1384             showServerStatus();
1385             mAuthStatusIcon = 0;
1386             mAuthStatusText = 0;
1387             showAuthStatus();
1388
1389             // update input controls state
1390             showRefreshButton(true);
1391             mOkButton.setEnabled(false);
1392
1393             // very special case (TODO: move to a common place for all the remote operations)
1394             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1395                 showUntrustedCertDialog(result);
1396             }
1397
1398         } else {    // authorization fail due to client side - probably wrong credentials
1399             updateAuthStatusIconAndText(result);
1400             showAuthStatus();
1401             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1402         }
1403     }
1404
1405
1406
1407
1408     /**
1409      * Updates the authentication token.
1410      *
1411      * Sets the proper response so that the AccountAuthenticator that started this activity
1412      * saves a new authorization token for mAccount.
1413      *
1414      * Kills the session kept by OwnCloudClientManager so that a new one will created with
1415      * the new credentials when needed.
1416      */
1417     private void updateAccountAuthentication() throws AccountNotFoundException {
1418
1419         Bundle response = new Bundle();
1420         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1421         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1422
1423         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).
1424                 equals(mAuthTokenType)) {
1425             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1426             // the next line is necessary, notifications are calling directly to the
1427             // AuthenticatorActivity to update, without AccountManager intervention
1428             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1429
1430         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1431                 equals(mAuthTokenType)) {
1432
1433             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1434             // the next line is necessary; by now, notifications are calling directly to the
1435             // AuthenticatorActivity to update, without AccountManager intervention
1436             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1437
1438         } else {
1439             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1440             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1441         }
1442         setAccountAuthenticatorResult(response);
1443
1444     }
1445
1446
1447     /**
1448      * Creates a new account through the Account Authenticator that started this activity.
1449      *
1450      * This makes the account permanent.
1451      *
1452      * TODO Decide how to name the OAuth accounts
1453      */
1454     private boolean createAccount() {
1455         /// create and save new ownCloud account
1456         boolean isOAuth = AccountTypeUtils.
1457                 getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1458         boolean isSaml =  AccountTypeUtils.
1459                 getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1460
1461         Uri uri = Uri.parse(mServerInfo.mBaseUrl);
1462         String username = mUsernameInput.getText().toString().trim();
1463         if (isOAuth) {
1464             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1465         }
1466         String accountName = com.owncloud.android.lib.common.accounts.AccountUtils.
1467                 buildAccountName(uri, username);
1468         Account newAccount = new Account(accountName, MainApp.getAccountType());
1469         if (AccountUtils.exists(newAccount, getApplicationContext())) {
1470             // fail - not a new account, but an existing one; disallow
1471             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1472             updateAuthStatusIconAndText(result);
1473             showAuthStatus();
1474             Log_OC.d(TAG, result.getLogMessage());
1475             return false;
1476
1477         } else {
1478             mAccount = newAccount;
1479
1480             if (isOAuth || isSaml) {
1481                 // with external authorizations, the password is never input in the app
1482                 mAccountMgr.addAccountExplicitly(mAccount, "", null);
1483             } else {
1484                 mAccountMgr.addAccountExplicitly(
1485                         mAccount, mPasswordInput.getText().toString(), null
1486                 );
1487             }
1488
1489             /// add the new account as default in preferences, if there is none already
1490             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1491             if (defaultAccount == null) {
1492                 SharedPreferences.Editor editor = PreferenceManager
1493                         .getDefaultSharedPreferences(this).edit();
1494                 editor.putString("select_oc_account", accountName);
1495                 editor.commit();
1496             }
1497
1498             /// prepare result to return to the Authenticator
1499             //  TODO check again what the Authenticator makes with it; probably has the same
1500             //  effect as addAccountExplicitly, but it's not well done
1501             final Intent intent = new Intent();
1502             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1503             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1504             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1505             if (isOAuth || isSaml) {
1506                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1507             }
1508             /// add user data to the new account; TODO probably can be done in the last parameter
1509             //      addAccountExplicitly, or in KEY_USERDATA
1510             mAccountMgr.setUserData(
1511                     mAccount, Constants.KEY_OC_VERSION,    mServerInfo.mVersion.getVersion()
1512             );
1513             mAccountMgr.setUserData(
1514                     mAccount, Constants.KEY_OC_BASE_URL,   mServerInfo.mBaseUrl
1515             );
1516
1517             if (isSaml) {
1518                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1519             } else if (isOAuth) {
1520                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1521             }
1522
1523             setAccountAuthenticatorResult(intent.getExtras());
1524             setResult(RESULT_OK, intent);
1525
1526             return true;
1527         }
1528     }
1529
1530
1531     /**
1532      * Starts and activity to open the 'new account' page in the ownCloud web site
1533      *
1534      * @param view      'Account register' button
1535      */
1536     public void onRegisterClick(View view) {
1537         Intent register = new Intent(
1538                 Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url))
1539         );
1540         setResult(RESULT_CANCELED);
1541         startActivity(register);
1542     }
1543
1544
1545     /**
1546      * Updates the content and visibility state of the icon and text associated
1547      * to the last check on the ownCloud server.
1548      *
1549      */
1550     private void showServerStatus() {
1551         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1552             mServerStatusView.setVisibility(View.INVISIBLE);
1553
1554         } else {
1555             mServerStatusView.setText(mServerStatusText);
1556             mServerStatusView.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1557             mServerStatusView.setVisibility(View.VISIBLE);
1558         }
1559
1560     }
1561
1562
1563     /**
1564      * Updates the content and visibility state of the icon and text associated
1565      * to the interactions with the OAuth authorization server.
1566      */
1567     private void showAuthStatus() {
1568         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1569             mAuthStatusView.setVisibility(View.INVISIBLE);
1570
1571         } else {
1572             mAuthStatusView.setText(mAuthStatusText);
1573             mAuthStatusView.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1574             mAuthStatusView.setVisibility(View.VISIBLE);
1575         }
1576     }
1577
1578
1579     private void showRefreshButton (boolean show) {
1580         if (show)  {
1581             mRefreshButton.setVisibility(View.VISIBLE);
1582         } else {
1583             mRefreshButton.setVisibility(View.GONE);
1584         }
1585     }
1586
1587     /**
1588      * Called when the refresh button in the input field for ownCloud host is clicked.
1589      *
1590      * Performs a new check on the URL in the input field.
1591      *
1592      * @param view      Refresh 'button'
1593      */
1594     public void onRefreshClick(View view) {
1595         checkOcServer();
1596     }
1597
1598
1599     /**
1600      * Called when the eye icon in the password field is clicked.
1601      *
1602      * Toggles the visibility of the password in the field.
1603      */
1604     public void onViewPasswordClick() {
1605         int selectionStart = mPasswordInput.getSelectionStart();
1606         int selectionEnd = mPasswordInput.getSelectionEnd();
1607         if (isPasswordVisible()) {
1608             hidePassword();
1609         } else {
1610             showPassword();
1611         }
1612         mPasswordInput.setSelection(selectionStart, selectionEnd);
1613     }
1614
1615
1616     /**
1617      * Called when the checkbox for OAuth authorization is clicked.
1618      *
1619      * Hides or shows the input fields for user & password.
1620      *
1621      * @param view      'View password' 'button'
1622      */
1623     public void onCheckClick(View view) {
1624         CheckBox oAuth2Check = (CheckBox)view;
1625         if (oAuth2Check.isChecked()) {
1626             mAuthTokenType = OAUTH_TOKEN_TYPE;
1627         } else {
1628             mAuthTokenType = BASIC_TOKEN_TYPE;
1629         }
1630         updateAuthenticationPreFragmentVisibility();
1631     }
1632
1633
1634     /**
1635      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1636      *
1637      *  Used to trigger the authentication check when the user presses 'enter' after writing the
1638      *  password, or to throw the server test when the only field on screen is the URL input field.
1639      */
1640     @Override
1641     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1642         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null &&
1643                 inputField.equals(mPasswordInput)) {
1644             if (mOkButton.isEnabled()) {
1645                 mOkButton.performClick();
1646             }
1647
1648         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null &&
1649                 inputField.equals(mHostUrlInput)) {
1650             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1651                     equals(mAuthTokenType)) {
1652                 checkOcServer();
1653             }
1654         }
1655         return false;   // always return false to grant that the software keyboard is hidden anyway
1656     }
1657
1658
1659     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1660
1661         private int fuzz = 75;
1662
1663         /**
1664          * {@inheritDoc}
1665          */
1666         @Override
1667         public boolean onTouch(View view, MotionEvent event) {
1668             Drawable rightDrawable = null;
1669             if (view instanceof TextView) {
1670                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1671                 if (drawables.length > 2) {
1672                     rightDrawable = drawables[2];
1673                 }
1674             }
1675             if (rightDrawable != null) {
1676                 final int x = (int) event.getX();
1677                 final int y = (int) event.getY();
1678                 final Rect bounds = rightDrawable.getBounds();
1679                 if (    x >= (view.getRight() - bounds.width() - fuzz) &&
1680                         x <= (view.getRight() - view.getPaddingRight() + fuzz) &&
1681                         y >= (view.getPaddingTop() - fuzz) &&
1682                         y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1683
1684                     return onDrawableTouch(event);
1685                 }
1686             }
1687             return false;
1688         }
1689
1690         public abstract boolean onDrawableTouch(final MotionEvent event);
1691     }
1692
1693
1694     private void getRemoteUserNameOperation(String sessionCookie, boolean followRedirects) {
1695
1696         Intent getUserNameIntent = new Intent();
1697         getUserNameIntent.setAction(OperationsService.ACTION_GET_USER_NAME);
1698         getUserNameIntent.putExtra(OperationsService.EXTRA_SERVER_URL, mServerInfo.mBaseUrl);
1699         getUserNameIntent.putExtra(OperationsService.EXTRA_COOKIE, sessionCookie);
1700
1701         if (mOperationsServiceBinder != null) {
1702             mWaitingForOpId = mOperationsServiceBinder.queueNewOperation(getUserNameIntent);
1703         }
1704     }
1705
1706
1707     @Override
1708     public void onSsoFinished(String sessionCookie) {
1709         if (sessionCookie != null && sessionCookie.length() > 0) {
1710             Log_OC.d(TAG, "Successful SSO - time to save the account");
1711             mAuthToken = sessionCookie;
1712             getRemoteUserNameOperation(sessionCookie, true);
1713             Fragment fd = getSupportFragmentManager().findFragmentByTag(SAML_DIALOG_TAG);
1714             if (fd != null && fd instanceof SherlockDialogFragment) {
1715                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1716                 if (d != null && d.isShowing()) {
1717                     d.dismiss();
1718                 }
1719             }
1720
1721         } else {
1722             // TODO - show fail
1723             Log_OC.d(TAG, "SSO failed");
1724         }
1725
1726     }
1727
1728     @Override
1729     public boolean onTouchEvent(MotionEvent event) {
1730         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).
1731                 equals(mAuthTokenType) &&
1732                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1733             checkOcServer();
1734         }
1735         return super.onTouchEvent(event);
1736     }
1737
1738
1739     /**
1740      * Show untrusted cert dialog
1741      */
1742     public void showUntrustedCertDialog(
1743             X509Certificate x509Certificate, SslError error, SslErrorHandler handler
1744         ) {
1745         // Show a dialog with the certificate info
1746         SslUntrustedCertDialog dialog = null;
1747         if (x509Certificate == null) {
1748             dialog = SslUntrustedCertDialog.newInstanceForEmptySslError(error, handler);
1749         } else {
1750             dialog = SslUntrustedCertDialog.
1751                     newInstanceForFullSslError(x509Certificate, error, handler);
1752         }
1753         FragmentManager fm = getSupportFragmentManager();
1754         FragmentTransaction ft = fm.beginTransaction();
1755         ft.addToBackStack(null);
1756         dialog.show(ft, UNTRUSTED_CERT_DIALOG_TAG);
1757     }
1758
1759
1760     /**
1761      * Show untrusted cert dialog
1762      */
1763     private void showUntrustedCertDialog(RemoteOperationResult result) {
1764         // Show a dialog with the certificate info
1765         SslUntrustedCertDialog dialog = SslUntrustedCertDialog.
1766                 newInstanceForFullSslError((CertificateCombinedException)result.getException());
1767         FragmentManager fm = getSupportFragmentManager();
1768         FragmentTransaction ft = fm.beginTransaction();
1769         ft.addToBackStack(null);
1770         dialog.show(ft, UNTRUSTED_CERT_DIALOG_TAG);
1771
1772     }
1773
1774     /**
1775      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1776      */
1777     public void onSavedCertificate() {
1778         Fragment fd = getSupportFragmentManager().findFragmentByTag(SAML_DIALOG_TAG);
1779         if (fd == null) {
1780             // if SAML dialog is not shown,
1781             // the SslDialog was shown due to an SSL error in the server check
1782             checkOcServer();
1783         }
1784     }
1785
1786     /**
1787      * Called from SslValidatorDialog when a new server certificate could not be saved
1788      * when the user requested it.
1789      */
1790     @Override
1791     public void onFailedSavingCertificate() {
1792         dismissDialog(SAML_DIALOG_TAG);
1793         Toast.makeText(this, R.string.ssl_validator_not_saved, Toast.LENGTH_LONG).show();
1794     }
1795
1796     @Override
1797     public void onCancelCertificate() {
1798         dismissDialog(SAML_DIALOG_TAG);
1799     }
1800
1801
1802     private void doOnResumeAndBound() {
1803         //Log_OC.wtf(TAG, "registering to listen for operation callbacks" );
1804         mOperationsServiceBinder.addOperationListener(AuthenticatorActivity.this, mHandler);
1805         if (mWaitingForOpId <= Integer.MAX_VALUE) {
1806             mOperationsServiceBinder.dispatchResultIfFinished((int)mWaitingForOpId, this);
1807         }
1808
1809         if (mPendingAutoCheck) {
1810             checkOcServer();
1811         }
1812     }
1813
1814
1815     private void dismissDialog(String dialogTag){
1816         Fragment frag = getSupportFragmentManager().findFragmentByTag(dialogTag);
1817         if (frag != null && frag instanceof SherlockDialogFragment) {
1818             SherlockDialogFragment dialog = (SherlockDialogFragment) frag;
1819             dialog.dismiss();
1820         }
1821     }
1822
1823
1824     /**
1825      * Implements callback methods for service binding.
1826      */
1827     private class OperationsServiceConnection implements ServiceConnection {
1828
1829         @Override
1830         public void onServiceConnected(ComponentName component, IBinder service) {
1831             if (component.equals(
1832                     new ComponentName(AuthenticatorActivity.this, OperationsService.class)
1833                 )) {
1834                 mOperationsServiceBinder = (OperationsServiceBinder) service;
1835
1836                 doOnResumeAndBound();
1837
1838             } else {
1839                 return;
1840             }
1841
1842         }
1843
1844         @Override
1845         public void onServiceDisconnected(ComponentName component) {
1846             if (component.equals(
1847                     new ComponentName(AuthenticatorActivity.this, OperationsService.class)
1848                 )) {
1849                 Log_OC.e(TAG, "Operations service crashed");
1850                 mOperationsServiceBinder = null;
1851             }
1852         }
1853
1854     }
1855
1856     /**
1857      * Create and show dialog for request authentication to the user
1858      * @param webView
1859      * @param handler
1860      */
1861     public void createAuthenticationDialog(WebView webView, HttpAuthHandler handler) {
1862
1863         // Show a dialog with the certificate info
1864         CredentialsDialogFragment dialog =
1865                 CredentialsDialogFragment.newInstanceForCredentials(webView, handler);
1866         FragmentManager fm = getSupportFragmentManager();
1867         FragmentTransaction ft = fm.beginTransaction();
1868         ft.addToBackStack(null);
1869         dialog.setCancelable(false);
1870         dialog.show(ft, CREDENTIALS_DIALOG_TAG);
1871
1872         if (!mIsFirstAuthAttempt) {
1873             Toast.makeText(
1874                     getApplicationContext(),
1875                     getText(R.string.saml_authentication_wrong_pass),
1876                     Toast.LENGTH_LONG
1877             ).show();
1878         } else {
1879             mIsFirstAuthAttempt = false;
1880         }
1881     }
1882
1883     /**
1884      * For retrieving the clicking on authentication cancel button
1885      */
1886     public void doNegativeAuthenticatioDialogClick(){
1887         mIsFirstAuthAttempt = true;
1888     }
1889
1890
1891 }