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