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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.DialogInterface;
  27 import android.content.Intent;
  28 import android.content.SharedPreferences;
  29 import android.graphics.Rect;
  30 import android.graphics.drawable.Drawable;
  31 import android.net.Uri;
  32 import android.os.Bundle;
  33 import android.os.Handler;
  34 import android.preference.PreferenceManager;
  35 import android.support.v4.app.Fragment;
  36 import android.text.Editable;
  37 import android.text.InputType;
  38 import android.text.TextWatcher;
  39 import android.view.KeyEvent;
  40 import android.view.MotionEvent;
  41 import android.view.View;
  42 import android.view.View.OnFocusChangeListener;
  43 import android.view.View.OnTouchListener;
  44 import android.view.Window;
  45 import android.view.inputmethod.EditorInfo;
  46 import android.widget.Button;
  47 import android.widget.CheckBox;
  48 import android.widget.EditText;
  49 import android.widget.TextView;
  50 import android.widget.TextView.OnEditorActionListener;
  51
  52 import com.actionbarsherlock.app.SherlockDialogFragment;
  53 import com.owncloud.android.MainApp;
  54 import com.owncloud.android.R;
  55 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  56 import com.owncloud.android.oc_framework.accounts.AccountTypeUtils;
  57 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  58 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  59 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  62 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  63 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  64 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  65 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  66 import com.owncloud.android.oc_framework.operations.remote.ExistenceCheckRemoteOperation;
  67 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  68 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  70 import com.owncloud.android.utils.Log_OC;
  71 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  72
  73 /**
  74  * This Activity is used to add an ownCloud account to the App
  75  *
  76  * @author Bartek Przybylski
  77  * @author David A. Velasco
  78  */
  79 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  80 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  81
  82     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  83
  84     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  85     public static final String EXTRA_USER_NAME = "USER_NAME";
  86     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  87     public static final String EXTRA_ACTION = "ACTION";
  88     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  89
  90     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  91     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  92     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  93     private static final String KEY_OC_VERSION = "OC_VERSION";
  94     private static final String KEY_ACCOUNT = "ACCOUNT";
  95     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  96     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  97     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  98     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  99     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 100     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 101     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 102     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 103     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 104     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 105
 106     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 107
 108     private static final String AUTH_ON = "on";
 109     private static final String AUTH_OFF = "off";
 110     private static final String AUTH_OPTIONAL = "optional";
 111
 112     private static final int DIALOG_LOGIN_PROGRESS = 0;
 113     private static final int DIALOG_SSL_VALIDATOR = 1;
 114     private static final int DIALOG_CERT_NOT_SAVED = 2;
 115     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 116
 117     public static final byte ACTION_CREATE = 0;
 118     public static final byte ACTION_UPDATE_TOKEN = 1;
 119
 120     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 121
 122     private String mHostBaseUrl;
 123     private OwnCloudVersion mDiscoveredVersion;
 124
 125     private String mAuthMessageText;
 126     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 127     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 128     private int mAuthStatusText, mAuthStatusIcon;
 129     private TextView mAuthStatusLayout;
 130
 131     private final Handler mHandler = new Handler();
 132     private Thread mOperationThread;
 133     private OwnCloudServerCheckOperation mOcServerChkOperation;
 134     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 135     private RemoteOperationResult mLastSslUntrustedServerResult;
 136
 137     private Uri mNewCapturedUriFromOAuth2Redirection;
 138
 139     private AccountManager mAccountMgr;
 140     private boolean mJustCreated;
 141     private byte mAction;
 142     private Account mAccount;
 143
 144     private TextView mAuthMessage;
 145
 146     private EditText mHostUrlInput;
 147     private boolean mHostUrlInputEnabled;
 148     private View mRefreshButton;
 149
 150     private String mAuthTokenType;
 151
 152     private EditText mUsernameInput;
 153     private EditText mPasswordInput;
 154
 155     private CheckBox mOAuth2Check;
 156
 157     private TextView mOAuthAuthEndpointText;
 158     private TextView mOAuthTokenEndpointText;
 159
 160     private SamlWebViewDialog mSamlDialog;
 161
 162     private View mOkButton;
 163
 164     private String mAuthToken;
 165
 166     private boolean mResumed; // Control if activity is resumed
 167
 168
 169     /**
 170      * {@inheritDoc}
 171      *
 172      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 173      */
 174     @Override
 175     protected void onCreate(Bundle savedInstanceState) {
 176         super.onCreate(savedInstanceState);
 177         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 178
 179         /// set view and get references to view elements
 180         setContentView(R.layout.account_setup);
 181         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 182         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 183         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 184         mUsernameInput = (EditText) findViewById(R.id.account_username);
 185         mPasswordInput = (EditText) findViewById(R.id.account_password);
 186         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 187         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 188         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 189         mOkButton = findViewById(R.id.buttonOK);
 190         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 191
 192         /// set Host Url Input Enabled
 193         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 194
 195         /// set visibility of link for new users
 196         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 197         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 198         if (welcomeLink != null) {
 199             if (accountRegisterVisibility) {
 200                 welcomeLink.setVisibility(View.VISIBLE);
 201                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 202             } else {
 203                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 204             }
 205         }
 206
 207         /// initialization
 208         mAccountMgr = AccountManager.get(this);
 209         mNewCapturedUriFromOAuth2Redirection = null;
 210         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 211         mAccount = null;
 212         mHostBaseUrl = "";
 213         boolean refreshButtonEnabled = false;
 214
 215         // URL input configuration applied
 216         if (!mHostUrlInputEnabled)
 217         {
 218             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 219             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 220
 221         } else {
 222             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 223         }
 224
 225         if (savedInstanceState == null) {
 226             mResumed = false;
 227             /// connection state and info
 228             mAuthMessageVisibility = View.GONE;
 229             mServerStatusText = mServerStatusIcon = 0;
 230             mServerIsValid = false;
 231             mServerIsChecked = false;
 232             mIsSslConn = false;
 233             mAuthStatusText = mAuthStatusIcon = 0;
 234
 235             /// retrieve extras from intent
 236             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 237             if (mAccount != null) {
 238                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 239                 if (ocVersion != null) {
 240                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 241                 }
 242                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 243                 mHostUrlInput.setText(mHostBaseUrl);
 244                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 245                 mUsernameInput.setText(userName);
 246             }
 247             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 248             mJustCreated = true;
 249
 250             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 251                 checkOcServer();
 252             }
 253
 254         } else {
 255             mResumed = true;
 256             /// connection state and info
 257             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 258             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 259             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 260             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 261             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 262             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 263             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 264             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 265             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 266             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 267                 showPassword();
 268             }
 269
 270             /// server data
 271             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 272             if (ocVersion != null) {
 273                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 274             }
 275             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 276
 277             // account data, if updating
 278             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 279             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 280             if (mAuthTokenType == null) {
 281                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 282
 283             }
 284
 285             // check if server check was interrupted by a configuration change
 286             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 287                 checkOcServer();
 288             }
 289
 290             // refresh button enabled
 291             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 292
 293
 294         }
 295
 296         if (mAuthMessageVisibility== View.VISIBLE) {
 297             showAuthMessage(mAuthMessageText);
 298         }
 299         else {
 300             hideAuthMessage();
 301         }
 302         adaptViewAccordingToAuthenticationMethod();
 303         showServerStatus();
 304         showAuthStatus();
 305
 306         if (mAction == ACTION_UPDATE_TOKEN) {
 307             /// lock things that should not change
 308             mHostUrlInput.setEnabled(false);
 309             mHostUrlInput.setFocusable(false);
 310             mUsernameInput.setEnabled(false);
 311             mUsernameInput.setFocusable(false);
 312             mOAuth2Check.setVisibility(View.GONE);
 313         }
 314
 315         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 316         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 317         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 318
 319         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 320                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 321             mOAuth2Check.setVisibility(View.GONE);
 322         }
 323
 324         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 325
 326         /// bind view elements to listeners and other friends
 327         mHostUrlInput.setOnFocusChangeListener(this);
 328         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 329         mHostUrlInput.setOnEditorActionListener(this);
 330         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 331
 332             @Override
 333             public void afterTextChanged(Editable s) {
 334                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 335                     mOkButton.setEnabled(false);
 336                 }
 337             }
 338
 339             @Override
 340             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 341             }
 342
 343             @Override
 344             public void onTextChanged(CharSequence s, int start, int before, int count) {
 345                 if (!mResumed) {
 346                     mAuthStatusIcon = 0;
 347                     mAuthStatusText = 0;
 348                     showAuthStatus();
 349                 }
 350                 mResumed = false;
 351             }
 352         });
 353
 354         mPasswordInput.setOnFocusChangeListener(this);
 355         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 356         mPasswordInput.setOnEditorActionListener(this);
 357         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 358             @Override
 359             public boolean onDrawableTouch(final MotionEvent event) {
 360                 if (event.getAction() == MotionEvent.ACTION_UP) {
 361                     AuthenticatorActivity.this.onViewPasswordClick();
 362                 }
 363                 return true;
 364             }
 365         });
 366
 367         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 368             @Override
 369             public boolean onTouch(View view, MotionEvent event) {
 370                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 371                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 372                             mHostUrlInput.hasFocus()) {
 373                         checkOcServer();
 374                     }
 375                 }
 376                 return false;
 377             }
 378         });
 379     }
 380
 381
 382
 383     private void initAuthorizationMethod() {
 384         boolean oAuthRequired = false;
 385         boolean samlWebSsoRequired = false;
 386
 387         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 388         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 389
 390         // TODO could be a good moment to validate the received token type, if not null
 391
 392         if (mAuthTokenType == null) {
 393             if (mAccount != null) {
 394                 /// same authentication method than the one used to create the account to update
 395                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 396                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 397
 398             } else {
 399                 /// use the one set in setup.xml
 400                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 401                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 402             }
 403             if (oAuthRequired) {
 404                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 405             } else if (samlWebSsoRequired) {
 406                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 407             } else {
 408                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 409             }
 410         }
 411
 412         if (mAccount != null) {
 413             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 414             mUsernameInput.setText(userName);
 415         }
 416
 417         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 418
 419     }
 420
 421     /**
 422      * Saves relevant state before {@link #onPause()}
 423      *
 424      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 425      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 426      *
 427      * See {@link #loadSavedInstanceState(Bundle)}
 428      */
 429     @Override
 430     protected void onSaveInstanceState(Bundle outState) {
 431         super.onSaveInstanceState(outState);
 432
 433         /// connection state and info
 434         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 435         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 436         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 437         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 438         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 439         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 440         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 441         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 442         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 443         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 444         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 445
 446         /// server data
 447         if (mDiscoveredVersion != null) {
 448             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 449         }
 450         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 451
 452         /// account data, if updating
 453         if (mAccount != null) {
 454             outState.putParcelable(KEY_ACCOUNT, mAccount);
 455         }
 456         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 457
 458         // refresh button enabled
 459         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 460
 461
 462     }
 463
 464
 465     /**
 466      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 467      * is caught here.
 468      *
 469      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 470      * AndroidManifest.xml file.
 471      */
 472     @Override
 473     protected void onNewIntent (Intent intent) {
 474         Log_OC.d(TAG, "onNewIntent()");
 475         Uri data = intent.getData();
 476         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 477             mNewCapturedUriFromOAuth2Redirection = data;
 478         }
 479     }
 480
 481
 482     /**
 483      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 484      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 485      */
 486     @Override
 487     protected void onResume() {
 488         super.onResume();
 489         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 490             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 491                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 492                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 493             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 494                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 495                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 496             } else {
 497                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 498                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 499             }
 500         }
 501
 502         if (mNewCapturedUriFromOAuth2Redirection != null) {
 503             getOAuth2AccessTokenFromCapturedRedirection();
 504         }
 505
 506         mJustCreated = false;
 507
 508     }
 509
 510
 511     /**
 512      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 513      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 514      */
 515     private void getOAuth2AccessTokenFromCapturedRedirection() {
 516         /// Parse data from OAuth redirection
 517         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 518         mNewCapturedUriFromOAuth2Redirection = null;
 519
 520         /// Showing the dialog with instructions for the user.
 521         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 522
 523         /// GET ACCESS TOKEN to the oAuth server
 524         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 525                 getString(R.string.oauth2_redirect_uri),
 526                 getString(R.string.oauth2_grant_type),
 527                 queryParameters);
 528         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 529         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 530         operation.execute(client, this, mHandler);
 531     }
 532
 533
 534
 535     /**
 536      * Handles the change of focus on the text inputs for the server URL and the password
 537      */
 538     public void onFocusChange(View view, boolean hasFocus) {
 539         if (view.getId() == R.id.hostUrlInput) {
 540             if (!hasFocus) {
 541                 onUrlInputFocusLost((TextView) view);
 542             }
 543             else {
 544                 hideRefreshButton();
 545             }
 546
 547         } else if (view.getId() == R.id.account_password) {
 548             onPasswordFocusChanged((TextView) view, hasFocus);
 549         }
 550     }
 551
 552
 553     /**
 554      * Handles changes in focus on the text input for the server URL.
 555      *
 556      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 557      * other field. The operation to check the existence of the server in the entered URL is
 558      * started.
 559      *
 560      * When hasFocus:    user 'comes back' to write again the server URL.
 561      *
 562      * @param hostInput     TextView with the URL input field receiving the change of focus.
 563      */
 564     private void onUrlInputFocusLost(TextView hostInput) {
 565         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 566             checkOcServer();
 567         } else {
 568             mOkButton.setEnabled(mServerIsValid);
 569             if (!mServerIsValid) {
 570                 showRefreshButton();
 571             }
 572         }
 573     }
 574
 575
 576     private void checkOcServer() {
 577         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 578
 579         if (!mHostUrlInputEnabled){
 580             uri = getString(R.string.server_url);
 581         }
 582
 583         mServerIsValid = false;
 584         mServerIsChecked = false;
 585         mOkButton.setEnabled(false);
 586         mDiscoveredVersion = null;
 587         hideRefreshButton();
 588         if (uri.length() != 0) {
 589             mServerStatusText = R.string.auth_testing_connection;
 590             mServerStatusIcon = R.drawable.progress_small;
 591             showServerStatus();
 592             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 593             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 594             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 595         } else {
 596             mServerStatusText = 0;
 597             mServerStatusIcon = 0;
 598             showServerStatus();
 599         }
 600     }
 601
 602
 603     /**
 604      * Handles changes in focus on the text input for the password (basic authorization).
 605      *
 606      * When (hasFocus), the button to toggle password visibility is shown.
 607      *
 608      * When (!hasFocus), the button is made invisible and the password is hidden.
 609      *
 610      * @param passwordInput    TextView with the password input field receiving the change of focus.
 611      * @param hasFocus          'True' if focus is received, 'false' if is lost
 612      */
 613     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 614         if (hasFocus) {
 615             showViewPasswordButton();
 616         } else {
 617             hidePassword();
 618             hidePasswordButton();
 619         }
 620     }
 621
 622
 623     private void showViewPasswordButton() {
 624         //int drawable = android.R.drawable.ic_menu_view;
 625         int drawable = R.drawable.ic_view;
 626         if (isPasswordVisible()) {
 627             //drawable = android.R.drawable.ic_secure;
 628             drawable = R.drawable.ic_hide;
 629         }
 630         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 631     }
 632
 633     private boolean isPasswordVisible() {
 634         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 635     }
 636
 637     private void hidePasswordButton() {
 638         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 639     }
 640
 641     private void showPassword() {
 642         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 643         showViewPasswordButton();
 644     }
 645
 646     private void hidePassword() {
 647         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 648         showViewPasswordButton();
 649     }
 650
 651
 652     /**
 653      * Cancels the authenticator activity
 654      *
 655      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 656      *
 657      * This method is bound in the layout/acceoun_setup.xml resource file.
 658      *
 659      * @param view      Cancel button
 660      */
 661     public void onCancelClick(View view) {
 662         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 663         finish();
 664     }
 665
 666
 667
 668     /**
 669      * Checks the credentials of the user in the root of the ownCloud server
 670      * before creating a new local account.
 671      *
 672      * For basic authorization, a check of existence of the root folder is
 673      * performed.
 674      *
 675      * For OAuth, starts the flow to get an access token; the credentials test
 676      * is postponed until it is available.
 677      *
 678      * IMPORTANT ENTRY POINT 4
 679      *
 680      * @param view      OK button
 681      */
 682     public void onOkClick(View view) {
 683         // this check should be unnecessary
 684         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 685             mServerStatusIcon = R.drawable.common_error;
 686             mServerStatusText = R.string.auth_wtf_reenter_URL;
 687             showServerStatus();
 688             mOkButton.setEnabled(false);
 689             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 690             return;
 691         }
 692
 693         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 694             startOauthorization();
 695         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 696             startSamlBasedFederatedSingleSignOnAuthorization();
 697         } else {
 698             checkBasicAuthorization();
 699         }
 700     }
 701
 702
 703     /**
 704      * Tests the credentials entered by the user performing a check of existence on
 705      * the root folder of the ownCloud server.
 706      */
 707     private void checkBasicAuthorization() {
 708         /// get the path to the root folder through WebDAV from the version server
 709         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 710
 711         /// get basic credentials entered by user
 712         String username = mUsernameInput.getText().toString();
 713         String password = mPasswordInput.getText().toString();
 714
 715         /// be gentle with the user
 716         showDialog(DIALOG_LOGIN_PROGRESS);
 717
 718         /// test credentials accessing the root folder
 719         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 720         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 721         client.setBasicCredentials(username, password);
 722         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 723     }
 724
 725
 726     /**
 727      * Starts the OAuth 'grant type' flow to get an access token, with
 728      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 729      */
 730     private void startOauthorization() {
 731         // be gentle with the user
 732         mAuthStatusIcon = R.drawable.progress_small;
 733         mAuthStatusText = R.string.oauth_login_connection;
 734         showAuthStatus();
 735
 736
 737         // GET AUTHORIZATION request
 738         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 739         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 740         Uri.Builder uriBuilder = uri.buildUpon();
 741         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 742         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 743         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 744         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 745         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 746         uri = uriBuilder.build();
 747         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 748         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 749         startActivity(i);
 750     }
 751
 752
 753     /**
 754      * Starts the Web Single Sign On flow to get access to the root folder
 755      * in the server.
 756      */
 757     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 758         // be gentle with the user
 759         mAuthStatusIcon = R.drawable.progress_small;
 760         mAuthStatusText = R.string.auth_connecting_auth_server;
 761         showAuthStatus();
 762         showDialog(DIALOG_LOGIN_PROGRESS);
 763
 764         /// get the path to the root folder through WebDAV from the version server
 765         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 766
 767         /// test credentials accessing the root folder
 768         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 769         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 770         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 771
 772     }
 773
 774     /**
 775      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 776      *
 777      * Dispatches the operation flow to the right method.
 778      */
 779     @Override
 780     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 781
 782         if (operation instanceof OwnCloudServerCheckOperation) {
 783             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 784
 785         } else if (operation instanceof OAuth2GetAccessToken) {
 786             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 787
 788         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 789             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 790                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 791
 792             } else {
 793                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 794             }
 795         }
 796     }
 797
 798
 799     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 800         try {
 801             dismissDialog(DIALOG_LOGIN_PROGRESS);
 802         } catch (IllegalArgumentException e) {
 803             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 804         }
 805
 806         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 807         if (result.isIdPRedirection()) {
 808             String url = result.getRedirectedLocation();
 809             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 810
 811             // Show dialog
 812             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 813             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 814
 815             mAuthStatusIcon = 0;
 816             mAuthStatusText = 0;
 817
 818         } else {
 819             mAuthStatusIcon = R.drawable.common_error;
 820             mAuthStatusText = R.string.auth_unsupported_auth_method;
 821
 822         }
 823         showAuthStatus();
 824     }
 825
 826
 827     /**
 828      * Processes the result of the server check performed when the user finishes the enter of the
 829      * server URL.
 830      *
 831      * @param operation     Server check performed.
 832      * @param result        Result of the check.
 833      */
 834     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 835         if (operation.equals(mOcServerChkOperation)) {
 836             /// save result state
 837             mServerIsChecked = true;
 838             mServerIsValid = result.isSuccess();
 839             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 840             mOcServerChkOperation = null;
 841
 842             /// update status icon and text
 843             if (mServerIsValid) {
 844                 hideRefreshButton();
 845             } else {
 846                 showRefreshButton();
 847             }
 848             updateServerStatusIconAndText(result);
 849             showServerStatus();
 850
 851             /// very special case (TODO: move to a common place for all the remote operations)
 852             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 853                 mLastSslUntrustedServerResult = result;
 854                 showDialog(DIALOG_SSL_VALIDATOR);
 855             }
 856
 857             /// retrieve discovered version and normalize server URL
 858             mDiscoveredVersion = operation.getDiscoveredVersion();
 859             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 860
 861             /// allow or not the user try to access the server
 862             mOkButton.setEnabled(mServerIsValid);
 863
 864         }   // else nothing ; only the last check operation is considered;
 865         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 866     }
 867
 868
 869     private String normalizeUrl(String url) {
 870         if (url != null && url.length() > 0) {
 871             url = url.trim();
 872             if (!url.toLowerCase().startsWith("http://") &&
 873                     !url.toLowerCase().startsWith("https://")) {
 874                 if (mIsSslConn) {
 875                     url = "https://" + url;
 876                 } else {
 877                     url = "http://" + url;
 878                 }
 879             }
 880
 881             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 882             url = trimUrlWebdav(url);
 883
 884             if (url.endsWith("/")) {
 885                 url = url.substring(0, url.length() - 1);
 886             }
 887
 888         }
 889         return (url != null ? url : "");
 890     }
 891
 892
 893     private String trimUrlWebdav(String url){
 894         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 895             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 896         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 897             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 898         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 899             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 900         }
 901         return (url != null ? url : "");
 902     }
 903
 904
 905     /**
 906      * Chooses the right icon and text to show to the user for the received operation result.
 907      *
 908      * @param result    Result of a remote operation performed in this activity
 909      */
 910     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 911         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 912
 913         switch (result.getCode()) {
 914         case OK_SSL:
 915             mServerStatusIcon = android.R.drawable.ic_secure;
 916             mServerStatusText = R.string.auth_secure_connection;
 917             break;
 918
 919         case OK_NO_SSL:
 920         case OK:
 921             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 922                 mServerStatusText = R.string.auth_connection_established;
 923                 mServerStatusIcon = R.drawable.ic_ok;
 924             } else {
 925                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 926                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 927             }
 928             break;
 929
 930         case NO_NETWORK_CONNECTION:
 931             mServerStatusIcon = R.drawable.no_network;
 932             mServerStatusText = R.string.auth_no_net_conn_title;
 933             break;
 934
 935         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 936             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 937             break;
 938         case BAD_OC_VERSION:
 939             mServerStatusText = R.string.auth_bad_oc_version_title;
 940             break;
 941         case WRONG_CONNECTION:
 942             mServerStatusText = R.string.auth_wrong_connection_title;
 943             break;
 944         case TIMEOUT:
 945             mServerStatusText = R.string.auth_timeout_title;
 946             break;
 947         case INCORRECT_ADDRESS:
 948             mServerStatusText = R.string.auth_incorrect_address_title;
 949             break;
 950         case SSL_ERROR:
 951             mServerStatusText = R.string.auth_ssl_general_error_title;
 952             break;
 953         case UNAUTHORIZED:
 954             mServerStatusText = R.string.auth_unauthorized;
 955             break;
 956         case HOST_NOT_AVAILABLE:
 957             mServerStatusText = R.string.auth_unknown_host_title;
 958             break;
 959         case INSTANCE_NOT_CONFIGURED:
 960             mServerStatusText = R.string.auth_not_configured_title;
 961             break;
 962         case FILE_NOT_FOUND:
 963             mServerStatusText = R.string.auth_incorrect_path_title;
 964             break;
 965         case OAUTH2_ERROR:
 966             mServerStatusText = R.string.auth_oauth_error;
 967             break;
 968         case OAUTH2_ERROR_ACCESS_DENIED:
 969             mServerStatusText = R.string.auth_oauth_error_access_denied;
 970             break;
 971         case UNHANDLED_HTTP_CODE:
 972         case UNKNOWN_ERROR:
 973             mServerStatusText = R.string.auth_unknown_error_title;
 974             break;
 975         default:
 976             mServerStatusText = 0;
 977             mServerStatusIcon = 0;
 978         }
 979     }
 980
 981
 982     /**
 983      * Chooses the right icon and text to show to the user for the received operation result.
 984      *
 985      * @param result    Result of a remote operation performed in this activity
 986      */
 987     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 988         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 989
 990         switch (result.getCode()) {
 991         case OK_SSL:
 992             mAuthStatusIcon = android.R.drawable.ic_secure;
 993             mAuthStatusText = R.string.auth_secure_connection;
 994             break;
 995
 996         case OK_NO_SSL:
 997         case OK:
 998             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 999                 mAuthStatusText = R.string.auth_connection_established;
1000                 mAuthStatusIcon = R.drawable.ic_ok;
1001             } else {
1002                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1003                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1004             }
1005             break;
1006
1007         case NO_NETWORK_CONNECTION:
1008             mAuthStatusIcon = R.drawable.no_network;
1009             mAuthStatusText = R.string.auth_no_net_conn_title;
1010             break;
1011
1012         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1013             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1014             break;
1015         case BAD_OC_VERSION:
1016             mAuthStatusText = R.string.auth_bad_oc_version_title;
1017             break;
1018         case WRONG_CONNECTION:
1019             mAuthStatusText = R.string.auth_wrong_connection_title;
1020             break;
1021         case TIMEOUT:
1022             mAuthStatusText = R.string.auth_timeout_title;
1023             break;
1024         case INCORRECT_ADDRESS:
1025             mAuthStatusText = R.string.auth_incorrect_address_title;
1026             break;
1027         case SSL_ERROR:
1028             mAuthStatusText = R.string.auth_ssl_general_error_title;
1029             break;
1030         case UNAUTHORIZED:
1031             mAuthStatusText = R.string.auth_unauthorized;
1032             break;
1033         case HOST_NOT_AVAILABLE:
1034             mAuthStatusText = R.string.auth_unknown_host_title;
1035             break;
1036         case INSTANCE_NOT_CONFIGURED:
1037             mAuthStatusText = R.string.auth_not_configured_title;
1038             break;
1039         case FILE_NOT_FOUND:
1040             mAuthStatusText = R.string.auth_incorrect_path_title;
1041             break;
1042         case OAUTH2_ERROR:
1043             mAuthStatusText = R.string.auth_oauth_error;
1044             break;
1045         case OAUTH2_ERROR_ACCESS_DENIED:
1046             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1047             break;
1048         case ACCOUNT_NOT_NEW:
1049             mAuthStatusText = R.string.auth_account_not_new;
1050             break;
1051         case ACCOUNT_NOT_THE_SAME:
1052             mAuthStatusText = R.string.auth_account_not_the_same;
1053             break;
1054         case UNHANDLED_HTTP_CODE:
1055         case UNKNOWN_ERROR:
1056             mAuthStatusText = R.string.auth_unknown_error_title;
1057             break;
1058         default:
1059             mAuthStatusText = 0;
1060             mAuthStatusIcon = 0;
1061         }
1062     }
1063
1064
1065     /**
1066      * Processes the result of the request for and access token send
1067      * to an OAuth authorization server.
1068      *
1069      * @param operation     Operation performed requesting the access token.
1070      * @param result        Result of the operation.
1071      */
1072     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1073         try {
1074             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1075         } catch (IllegalArgumentException e) {
1076             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1077         }
1078
1079         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1080         if (result.isSuccess() && webdav_path != null) {
1081             /// be gentle with the user
1082             showDialog(DIALOG_LOGIN_PROGRESS);
1083
1084             /// time to test the retrieved access token on the ownCloud server
1085             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1086             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1087             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1088             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1089             client.setBearerCredentials(mAuthToken);
1090             mAuthCheckOperation.execute(client, this, mHandler);
1091
1092         } else {
1093             updateAuthStatusIconAndText(result);
1094             showAuthStatus();
1095             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1096         }
1097     }
1098
1099
1100     /**
1101      * Processes the result of the access check performed to try the user credentials.
1102      *
1103      * Creates a new account through the AccountManager.
1104      *
1105      * @param operation     Access check performed.
1106      * @param result        Result of the operation.
1107      */
1108     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1109         try {
1110             dismissDialog(DIALOG_LOGIN_PROGRESS);
1111         } catch (IllegalArgumentException e) {
1112             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1113         }
1114
1115         if (result.isSuccess()) {
1116             Log_OC.d(TAG, "Successful access - time to save the account");
1117
1118             boolean success = false;
1119             if (mAction == ACTION_CREATE) {
1120                 success = createAccount();
1121
1122             } else {
1123                 success = updateToken();
1124             }
1125
1126             if (success) {
1127                 finish();
1128             }
1129
1130         } else if (result.isServerFail() || result.isException()) {
1131             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1132             mServerIsChecked = true;
1133             mServerIsValid = false;
1134             mIsSslConn = false;
1135             mOcServerChkOperation = null;
1136             mDiscoveredVersion = null;
1137             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1138
1139             // update status icon and text
1140             updateServerStatusIconAndText(result);
1141             showServerStatus();
1142             mAuthStatusIcon = 0;
1143             mAuthStatusText = 0;
1144             showAuthStatus();
1145
1146             // update input controls state
1147             showRefreshButton();
1148             mOkButton.setEnabled(false);
1149
1150             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1151             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1152                 mLastSslUntrustedServerResult = result;
1153                 showDialog(DIALOG_SSL_VALIDATOR);
1154             }
1155
1156         } else {    // authorization fail due to client side - probably wrong credentials
1157             updateAuthStatusIconAndText(result);
1158             showAuthStatus();
1159             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1160         }
1161
1162     }
1163
1164
1165     /**
1166      * Sets the proper response to get that the Account Authenticator that started this activity saves
1167      * a new authorization token for mAccount.
1168      */
1169     private boolean updateToken() {
1170         Bundle response = new Bundle();
1171         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1172         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1173
1174         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1175             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1176             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1177             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1178
1179         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1180             String username = getUserNameForSamlSso();
1181             if (!mUsernameInput.getText().toString().equals(username)) {
1182                 // fail - not a new account, but an existing one; disallow
1183                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1184                 updateAuthStatusIconAndText(result);
1185                 showAuthStatus();
1186                 Log_OC.d(TAG, result.getLogMessage());
1187
1188                 return false;
1189             }
1190
1191             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1192             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1193             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1194
1195         } else {
1196             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1197             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1198         }
1199         setAccountAuthenticatorResult(response);
1200
1201         return true;
1202     }
1203
1204
1205     /**
1206      * Creates a new account through the Account Authenticator that started this activity.
1207      *
1208      * This makes the account permanent.
1209      *
1210      * TODO Decide how to name the OAuth accounts
1211      */
1212     private boolean createAccount() {
1213         /// create and save new ownCloud account
1214         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1215         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1216
1217         Uri uri = Uri.parse(mHostBaseUrl);
1218         String username = mUsernameInput.getText().toString().trim();
1219         if (isSaml) {
1220             username = getUserNameForSamlSso();
1221
1222         } else if (isOAuth) {
1223             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1224         }
1225         String accountName = username + "@" + uri.getHost();
1226         if (uri.getPort() >= 0) {
1227             accountName += ":" + uri.getPort();
1228         }
1229         mAccount = new Account(accountName, MainApp.getAccountType());
1230         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1231             // fail - not a new account, but an existing one; disallow
1232             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1233             updateAuthStatusIconAndText(result);
1234             showAuthStatus();
1235             Log_OC.d(TAG, result.getLogMessage());
1236             return false;
1237
1238         } else {
1239
1240             if (isOAuth || isSaml) {
1241                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1242             } else {
1243                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1244             }
1245
1246             /// add the new account as default in preferences, if there is none already
1247             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1248             if (defaultAccount == null) {
1249                 SharedPreferences.Editor editor = PreferenceManager
1250                         .getDefaultSharedPreferences(this).edit();
1251                 editor.putString("select_oc_account", accountName);
1252                 editor.commit();
1253             }
1254
1255             /// prepare result to return to the Authenticator
1256             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1257             final Intent intent = new Intent();
1258             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1259             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1260             /*if (!isOAuth)
1261                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1262             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1263             if (isOAuth || isSaml) {
1264                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1265             }
1266             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1267             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1268             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1269             if (isSaml) {
1270                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1271             } else if (isOAuth) {
1272                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1273             }
1274
1275             setAccountAuthenticatorResult(intent.getExtras());
1276             setResult(RESULT_OK, intent);
1277
1278             return true;
1279         }
1280     }
1281
1282
1283     private String getUserNameForSamlSso() {
1284         if (mAuthToken != null) {
1285             String [] cookies = mAuthToken.split(";");
1286             for (int i=0; i<cookies.length; i++) {
1287                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1288                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1289                     return value;
1290                 }
1291             }
1292         }
1293         return "";
1294     }
1295
1296
1297     /**
1298      * {@inheritDoc}
1299      *
1300      * Necessary to update the contents of the SSL Dialog
1301      *
1302      * TODO move to some common place for all possible untrusted SSL failures
1303      */
1304     @Override
1305     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1306         switch (id) {
1307         case DIALOG_LOGIN_PROGRESS:
1308         case DIALOG_CERT_NOT_SAVED:
1309         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1310             break;
1311         case DIALOG_SSL_VALIDATOR: {
1312             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1313             break;
1314         }
1315         default:
1316             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1317         }
1318     }
1319
1320
1321     /**
1322      * {@inheritDoc}
1323      */
1324     @Override
1325     protected Dialog onCreateDialog(int id) {
1326         Dialog dialog = null;
1327         switch (id) {
1328         case DIALOG_LOGIN_PROGRESS: {
1329             /// simple progress dialog
1330             ProgressDialog working_dialog = new ProgressDialog(this);
1331             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1332             working_dialog.setIndeterminate(true);
1333             working_dialog.setCancelable(true);
1334             working_dialog
1335             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1336                 @Override
1337                 public void onCancel(DialogInterface dialog) {
1338                     /// TODO study if this is enough
1339                     Log_OC.i(TAG, "Login canceled");
1340                     if (mOperationThread != null) {
1341                         mOperationThread.interrupt();
1342                         finish();
1343                     }
1344                 }
1345             });
1346             dialog = working_dialog;
1347             break;
1348         }
1349         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1350             ProgressDialog working_dialog = new ProgressDialog(this);
1351             working_dialog.setMessage(String.format("Getting authorization"));
1352             working_dialog.setIndeterminate(true);
1353             working_dialog.setCancelable(true);
1354             working_dialog
1355             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1356                 @Override
1357                 public void onCancel(DialogInterface dialog) {
1358                     Log_OC.i(TAG, "Login canceled");
1359                     finish();
1360                 }
1361             });
1362             dialog = working_dialog;
1363             break;
1364         }
1365         case DIALOG_SSL_VALIDATOR: {
1366             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1367             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1368             break;
1369         }
1370         case DIALOG_CERT_NOT_SAVED: {
1371             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1372             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1373             builder.setCancelable(false);
1374             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1375                 @Override
1376                 public void onClick(DialogInterface dialog, int which) {
1377                     dialog.dismiss();
1378                 };
1379             });
1380             dialog = builder.create();
1381             break;
1382         }
1383         default:
1384             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1385         }
1386         return dialog;
1387     }
1388
1389
1390     /**
1391      * Starts and activity to open the 'new account' page in the ownCloud web site
1392      *
1393      * @param view      'Account register' button
1394      */
1395     public void onRegisterClick(View view) {
1396         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1397         setResult(RESULT_CANCELED);
1398         startActivity(register);
1399     }
1400
1401
1402     /**
1403      * Updates the content and visibility state of the icon and text associated
1404      * to the last check on the ownCloud server.
1405      */
1406     private void showServerStatus() {
1407         TextView tv = (TextView) findViewById(R.id.server_status_text);
1408
1409         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1410             tv.setVisibility(View.INVISIBLE);
1411
1412         } else {
1413             tv.setText(mServerStatusText);
1414             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1415             tv.setVisibility(View.VISIBLE);
1416         }
1417
1418     }
1419
1420
1421     /**
1422      * Updates the content and visibility state of the icon and text associated
1423      * to the interactions with the OAuth authorization server.
1424      */
1425     private void showAuthStatus() {
1426         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1427             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1428
1429         } else {
1430             mAuthStatusLayout.setText(mAuthStatusText);
1431             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1432             mAuthStatusLayout.setVisibility(View.VISIBLE);
1433         }
1434     }
1435
1436
1437     private void showRefreshButton() {
1438         mRefreshButton.setVisibility(View.VISIBLE);
1439     }
1440
1441     private void hideRefreshButton() {
1442         mRefreshButton.setVisibility(View.GONE);
1443     }
1444
1445     /**
1446      * Called when the refresh button in the input field for ownCloud host is clicked.
1447      *
1448      * Performs a new check on the URL in the input field.
1449      *
1450      * @param view      Refresh 'button'
1451      */
1452     public void onRefreshClick(View view) {
1453         checkOcServer();
1454     }
1455
1456
1457     /**
1458      * Called when the eye icon in the password field is clicked.
1459      *
1460      * Toggles the visibility of the password in the field.
1461      */
1462     public void onViewPasswordClick() {
1463         int selectionStart = mPasswordInput.getSelectionStart();
1464         int selectionEnd = mPasswordInput.getSelectionEnd();
1465         if (isPasswordVisible()) {
1466             hidePassword();
1467         } else {
1468             showPassword();
1469         }
1470         mPasswordInput.setSelection(selectionStart, selectionEnd);
1471     }
1472
1473
1474     /**
1475      * Called when the checkbox for OAuth authorization is clicked.
1476      *
1477      * Hides or shows the input fields for user & password.
1478      *
1479      * @param view      'View password' 'button'
1480      */
1481     public void onCheckClick(View view) {
1482         CheckBox oAuth2Check = (CheckBox)view;
1483         if (oAuth2Check.isChecked()) {
1484             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1485         } else {
1486             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1487         }
1488         adaptViewAccordingToAuthenticationMethod();
1489     }
1490
1491
1492     /**
1493      * Changes the visibility of input elements depending on
1494      * the current authorization method.
1495      */
1496     private void adaptViewAccordingToAuthenticationMethod () {
1497         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1498             // OAuth 2 authorization
1499             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1500             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1501             mUsernameInput.setVisibility(View.GONE);
1502             mPasswordInput.setVisibility(View.GONE);
1503
1504         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1505             // SAML-based web Single Sign On
1506             mOAuthAuthEndpointText.setVisibility(View.GONE);
1507             mOAuthTokenEndpointText.setVisibility(View.GONE);
1508             mUsernameInput.setVisibility(View.GONE);
1509             mPasswordInput.setVisibility(View.GONE);
1510         } else {
1511             // basic HTTP authorization
1512             mOAuthAuthEndpointText.setVisibility(View.GONE);
1513             mOAuthTokenEndpointText.setVisibility(View.GONE);
1514             mUsernameInput.setVisibility(View.VISIBLE);
1515             mPasswordInput.setVisibility(View.VISIBLE);
1516         }
1517     }
1518
1519     /**
1520      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1521      */
1522     public void onSavedCertificate() {
1523         checkOcServer();
1524     }
1525
1526     /**
1527      * Called from SslValidatorDialog when a new server certificate could not be saved
1528      * when the user requested it.
1529      */
1530     @Override
1531     public void onFailedSavingCertificate() {
1532         showDialog(DIALOG_CERT_NOT_SAVED);
1533     }
1534
1535
1536     /**
1537      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1538      *
1539      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1540      *  or to throw the server test when the only field on screen is the URL input field.
1541      */
1542     @Override
1543     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1544         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1545             if (mOkButton.isEnabled()) {
1546                 mOkButton.performClick();
1547             }
1548
1549         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1550             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1551                 checkOcServer();
1552             }
1553         }
1554         return false;   // always return false to grant that the software keyboard is hidden anyway
1555     }
1556
1557
1558     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1559
1560         private int fuzz = 75;
1561
1562         /**
1563          * {@inheritDoc}
1564          */
1565         @Override
1566         public boolean onTouch(View view, MotionEvent event) {
1567             Drawable rightDrawable = null;
1568             if (view instanceof TextView) {
1569                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1570                 if (drawables.length > 2) {
1571                     rightDrawable = drawables[2];
1572                 }
1573             }
1574             if (rightDrawable != null) {
1575                 final int x = (int) event.getX();
1576                 final int y = (int) event.getY();
1577                 final Rect bounds = rightDrawable.getBounds();
1578                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1579                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1580
1581                     return onDrawableTouch(event);
1582                 }
1583             }
1584             return false;
1585         }
1586
1587         public abstract boolean onDrawableTouch(final MotionEvent event);
1588     }
1589
1590
1591     public void onSamlDialogSuccess(String sessionCookie){
1592         mAuthToken = sessionCookie;
1593
1594         if (sessionCookie != null && sessionCookie.length() > 0) {
1595             mAuthToken = sessionCookie;
1596             boolean success = false;
1597             if (mAction == ACTION_CREATE) {
1598                 success = createAccount();
1599
1600             } else {
1601                 success = updateToken();
1602             }
1603             if (success) {
1604                 finish();
1605             }
1606         }
1607
1608
1609     }
1610
1611
1612     @Override
1613     public void onSsoFinished(String sessionCookies) {
1614         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1615
1616         if (sessionCookies != null && sessionCookies.length() > 0) {
1617             Log_OC.d(TAG, "Successful SSO - time to save the account");
1618             onSamlDialogSuccess(sessionCookies);
1619             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1620             if (fd != null && fd instanceof SherlockDialogFragment) {
1621                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1622                 if (d != null && d.isShowing()) {
1623                     d.dismiss();
1624                 }
1625             }
1626
1627         } else {
1628             // TODO - show fail
1629             Log_OC.d(TAG, "SSO failed");
1630         }
1631
1632     }
1633
1634     /** Show auth_message
1635      *
1636      * @param message
1637      */
1638     private void showAuthMessage(String message) {
1639        mAuthMessage.setVisibility(View.VISIBLE);
1640        mAuthMessage.setText(message);
1641     }
1642
1643     private void hideAuthMessage() {
1644         mAuthMessage.setVisibility(View.GONE);
1645     }
1646
1647     @Override
1648     public boolean onTouchEvent(MotionEvent event) {
1649         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1650                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1651             checkOcServer();
1652         }
1653         return super.onTouchEvent(event);
1654     }
1655 }