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.lib.accounts.AccountTypeUtils;
  57 import com.owncloud.android.lib.accounts.OwnCloudAccount;
  58 import com.owncloud.android.lib.network.OwnCloudClientFactory;
  59 import com.owncloud.android.lib.network.OwnCloudClient;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61
  62 import com.owncloud.android.lib.operations.common.OnRemoteOperationListener;
  63 import com.owncloud.android.lib.operations.remote.OwnCloudServerCheckOperation;
  64 import com.owncloud.android.lib.operations.common.RemoteOperation;
  65 import com.owncloud.android.lib.operations.common.RemoteOperationResult;
  66 import com.owncloud.android.lib.operations.common.RemoteOperationResult.ResultCode;
  67 import com.owncloud.android.lib.operations.remote.ExistenceCheckRemoteOperation;
  68 import com.owncloud.android.lib.operations.remote.GetUserNameRemoteOperation;
  69
  70 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  71 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  72 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  73 import com.owncloud.android.utils.Log_OC;
  74 import com.owncloud.android.lib.utils.OwnCloudVersion;
  75
  76 /**
  77  * This Activity is used to add an ownCloud account to the App
  78  *
  79  * @author Bartek Przybylski
  80  * @author David A. Velasco
  81  */
  82 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  83 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  84
  85     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  86
  87     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  88     public static final String EXTRA_USER_NAME = "USER_NAME";
  89     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  90     public static final String EXTRA_ACTION = "ACTION";
  91     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  92
  93     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  94     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  95     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  96     private static final String KEY_OC_VERSION = "OC_VERSION";
  97     private static final String KEY_ACCOUNT = "ACCOUNT";
  98     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  99     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
 100     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
 101     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 102     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 103     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 104     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 105     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 106     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 107     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 108     private static final String KEY_IS_SHARED_SUPPORTED = "KEY_IS_SHARE_SUPPORTED";
 109
 110     private static final String AUTH_ON = "on";
 111     private static final String AUTH_OFF = "off";
 112     private static final String AUTH_OPTIONAL = "optional";
 113
 114     private static final int DIALOG_LOGIN_PROGRESS = 0;
 115     private static final int DIALOG_SSL_VALIDATOR = 1;
 116     private static final int DIALOG_CERT_NOT_SAVED = 2;
 117     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 118
 119     public static final byte ACTION_CREATE = 0;
 120     public static final byte ACTION_UPDATE_TOKEN = 1;
 121
 122     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 123
 124     private String mHostBaseUrl;
 125     private OwnCloudVersion mDiscoveredVersion;
 126     private boolean mIsSharedSupported;
 127
 128     private String mAuthMessageText;
 129     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 130     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 131     private int mAuthStatusText, mAuthStatusIcon;
 132     private TextView mAuthStatusLayout;
 133
 134     private final Handler mHandler = new Handler();
 135     private Thread mOperationThread;
 136     private OwnCloudServerCheckOperation mOcServerChkOperation;
 137     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 138     private RemoteOperationResult mLastSslUntrustedServerResult;
 139
 140     private Uri mNewCapturedUriFromOAuth2Redirection;
 141
 142     private AccountManager mAccountMgr;
 143     private boolean mJustCreated;
 144     private byte mAction;
 145     private Account mAccount;
 146
 147     private TextView mAuthMessage;
 148
 149     private EditText mHostUrlInput;
 150     private boolean mHostUrlInputEnabled;
 151     private View mRefreshButton;
 152
 153     private String mAuthTokenType;
 154
 155     private EditText mUsernameInput;
 156     private EditText mPasswordInput;
 157
 158     private CheckBox mOAuth2Check;
 159
 160     private TextView mOAuthAuthEndpointText;
 161     private TextView mOAuthTokenEndpointText;
 162
 163     private SamlWebViewDialog mSamlDialog;
 164
 165     private View mOkButton;
 166
 167     private String mAuthToken;
 168
 169     private boolean mResumed; // Control if activity is resumed
 170
 171
 172     /**
 173      * {@inheritDoc}
 174      *
 175      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 176      */
 177     @Override
 178     protected void onCreate(Bundle savedInstanceState) {
 179         super.onCreate(savedInstanceState);
 180         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 181
 182         /// set view and get references to view elements
 183         setContentView(R.layout.account_setup);
 184         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 185         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 186         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 187         mUsernameInput = (EditText) findViewById(R.id.account_username);
 188         mPasswordInput = (EditText) findViewById(R.id.account_password);
 189         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 190         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 191         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 192         mOkButton = findViewById(R.id.buttonOK);
 193         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 194
 195         /// set Host Url Input Enabled
 196         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 197
 198         /// set visibility of link for new users
 199         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 200         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 201         if (welcomeLink != null) {
 202             if (accountRegisterVisibility) {
 203                 welcomeLink.setVisibility(View.VISIBLE);
 204                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 205             } else {
 206                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 207             }
 208         }
 209
 210         /// initialization
 211         mAccountMgr = AccountManager.get(this);
 212         mNewCapturedUriFromOAuth2Redirection = null;
 213         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 214         mAccount = null;
 215         mHostBaseUrl = "";
 216         boolean refreshButtonEnabled = false;
 217
 218         // URL input configuration applied
 219         if (!mHostUrlInputEnabled)
 220         {
 221             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 222             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 223
 224         } else {
 225             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 226         }
 227
 228         if (savedInstanceState == null) {
 229             mResumed = false;
 230             /// connection state and info
 231             mAuthMessageVisibility = View.GONE;
 232             mServerStatusText = mServerStatusIcon = 0;
 233             mServerIsValid = false;
 234             mServerIsChecked = false;
 235             mIsSslConn = false;
 236             mAuthStatusText = mAuthStatusIcon = 0;
 237             mIsSharedSupported = false;
 238
 239             /// retrieve extras from intent
 240             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 241             if (mAccount != null) {
 242                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 243                 if (ocVersion != null) {
 244                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 245                 }
 246                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 247                 mHostUrlInput.setText(mHostBaseUrl);
 248                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 249                 mUsernameInput.setText(userName);
 250                 mIsSharedSupported = Boolean.getBoolean(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SHARE_API));
 251
 252             }
 253             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 254             mJustCreated = true;
 255
 256             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 257                 checkOcServer();
 258             }
 259
 260         } else {
 261             mResumed = true;
 262             /// connection state and info
 263             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 264             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 265             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 266             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 267             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 268             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 269             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 270             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 271             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 272             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 273                 showPassword();
 274             }
 275
 276             /// server data
 277             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 278             mIsSharedSupported = savedInstanceState.getBoolean(KEY_IS_SHARED_SUPPORTED, false);
 279             if (ocVersion != null) {
 280                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 281             }
 282             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 283
 284             // account data, if updating
 285             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 286             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 287             if (mAuthTokenType == null) {
 288                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 289
 290             }
 291
 292             // check if server check was interrupted by a configuration change
 293             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 294                 checkOcServer();
 295             }
 296
 297             // refresh button enabled
 298             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 299
 300
 301         }
 302
 303         if (mAuthMessageVisibility== View.VISIBLE) {
 304             showAuthMessage(mAuthMessageText);
 305         }
 306         else {
 307             hideAuthMessage();
 308         }
 309         adaptViewAccordingToAuthenticationMethod();
 310         showServerStatus();
 311         showAuthStatus();
 312
 313         if (mAction == ACTION_UPDATE_TOKEN) {
 314             /// lock things that should not change
 315             mHostUrlInput.setEnabled(false);
 316             mHostUrlInput.setFocusable(false);
 317             mUsernameInput.setEnabled(false);
 318             mUsernameInput.setFocusable(false);
 319             mOAuth2Check.setVisibility(View.GONE);
 320         }
 321
 322         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 323         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 324         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 325
 326         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 327                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 328             mOAuth2Check.setVisibility(View.GONE);
 329         }
 330
 331         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 332
 333         /// bind view elements to listeners and other friends
 334         mHostUrlInput.setOnFocusChangeListener(this);
 335         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 336         mHostUrlInput.setOnEditorActionListener(this);
 337         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 338
 339             @Override
 340             public void afterTextChanged(Editable s) {
 341                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 342                     mOkButton.setEnabled(false);
 343                 }
 344             }
 345
 346             @Override
 347             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 348             }
 349
 350             @Override
 351             public void onTextChanged(CharSequence s, int start, int before, int count) {
 352                 if (!mResumed) {
 353                     mAuthStatusIcon = 0;
 354                     mAuthStatusText = 0;
 355                     showAuthStatus();
 356                 }
 357                 mResumed = false;
 358             }
 359         });
 360
 361         mPasswordInput.setOnFocusChangeListener(this);
 362         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 363         mPasswordInput.setOnEditorActionListener(this);
 364         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 365             @Override
 366             public boolean onDrawableTouch(final MotionEvent event) {
 367                 if (event.getAction() == MotionEvent.ACTION_UP) {
 368                     AuthenticatorActivity.this.onViewPasswordClick();
 369                 }
 370                 return true;
 371             }
 372         });
 373
 374         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 375             @Override
 376             public boolean onTouch(View view, MotionEvent event) {
 377                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 378                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 379                             mHostUrlInput.hasFocus()) {
 380                         checkOcServer();
 381                     }
 382                 }
 383                 return false;
 384             }
 385         });
 386     }
 387
 388
 389
 390     private void initAuthorizationMethod() {
 391         boolean oAuthRequired = false;
 392         boolean samlWebSsoRequired = false;
 393
 394         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 395         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 396
 397         // TODO could be a good moment to validate the received token type, if not null
 398
 399         if (mAuthTokenType == null) {
 400             if (mAccount != null) {
 401                 /// same authentication method than the one used to create the account to update
 402                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 403                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 404
 405             } else {
 406                 /// use the one set in setup.xml
 407                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 408                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 409             }
 410             if (oAuthRequired) {
 411                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 412             } else if (samlWebSsoRequired) {
 413                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 414             } else {
 415                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 416             }
 417         }
 418
 419         if (mAccount != null) {
 420             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 421             mUsernameInput.setText(userName);
 422         }
 423
 424         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 425
 426     }
 427
 428     /**
 429      * Saves relevant state before {@link #onPause()}
 430      *
 431      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 432      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 433      *
 434      * See {@link #loadSavedInstanceState(Bundle)}
 435      */
 436     @Override
 437     protected void onSaveInstanceState(Bundle outState) {
 438         super.onSaveInstanceState(outState);
 439
 440         /// connection state and info
 441         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 442         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 443         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 444         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 445         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 446         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 447         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 448         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 449         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 450         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 451         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 452
 453         /// server data
 454         if (mDiscoveredVersion != null) {
 455             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 456         }
 457         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 458         outState.putBoolean(KEY_IS_SHARED_SUPPORTED, mIsSharedSupported);
 459
 460         /// account data, if updating
 461         if (mAccount != null) {
 462             outState.putParcelable(KEY_ACCOUNT, mAccount);
 463         }
 464         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 465
 466         // refresh button enabled
 467         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 468
 469
 470     }
 471
 472
 473     /**
 474      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 475      * is caught here.
 476      *
 477      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 478      * AndroidManifest.xml file.
 479      */
 480     @Override
 481     protected void onNewIntent (Intent intent) {
 482         Log_OC.d(TAG, "onNewIntent()");
 483         Uri data = intent.getData();
 484         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 485             mNewCapturedUriFromOAuth2Redirection = data;
 486         }
 487     }
 488
 489
 490     /**
 491      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 492      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 493      */
 494     @Override
 495     protected void onResume() {
 496         super.onResume();
 497         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 498             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 499                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 500                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 501             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 502                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 503                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 504             } else {
 505                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 506                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 507             }
 508         }
 509
 510         if (mNewCapturedUriFromOAuth2Redirection != null) {
 511             getOAuth2AccessTokenFromCapturedRedirection();
 512         }
 513
 514         mJustCreated = false;
 515
 516     }
 517
 518
 519     /**
 520      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 521      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 522      */
 523     private void getOAuth2AccessTokenFromCapturedRedirection() {
 524         /// Parse data from OAuth redirection
 525         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 526         mNewCapturedUriFromOAuth2Redirection = null;
 527
 528         /// Showing the dialog with instructions for the user.
 529         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 530
 531         /// GET ACCESS TOKEN to the oAuth server
 532         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 533                 getString(R.string.oauth2_redirect_uri),
 534                 getString(R.string.oauth2_grant_type),
 535                 queryParameters);
 536         //OwnCloudClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 537         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 538         operation.execute(client, this, mHandler);
 539     }
 540
 541
 542
 543     /**
 544      * Handles the change of focus on the text inputs for the server URL and the password
 545      */
 546     public void onFocusChange(View view, boolean hasFocus) {
 547         if (view.getId() == R.id.hostUrlInput) {
 548             if (!hasFocus) {
 549                 onUrlInputFocusLost((TextView) view);
 550             }
 551             else {
 552                 hideRefreshButton();
 553             }
 554
 555         } else if (view.getId() == R.id.account_password) {
 556             onPasswordFocusChanged((TextView) view, hasFocus);
 557         }
 558     }
 559
 560
 561     /**
 562      * Handles changes in focus on the text input for the server URL.
 563      *
 564      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 565      * other field. The operation to check the existence of the server in the entered URL is
 566      * started.
 567      *
 568      * When hasFocus:    user 'comes back' to write again the server URL.
 569      *
 570      * @param hostInput     TextView with the URL input field receiving the change of focus.
 571      */
 572     private void onUrlInputFocusLost(TextView hostInput) {
 573         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 574             checkOcServer();
 575         } else {
 576             mOkButton.setEnabled(mServerIsValid);
 577             if (!mServerIsValid) {
 578                 showRefreshButton();
 579             }
 580         }
 581     }
 582
 583
 584     private void checkOcServer() {
 585         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 586
 587         if (!mHostUrlInputEnabled){
 588             uri = getString(R.string.server_url);
 589         }
 590
 591         mServerIsValid = false;
 592         mServerIsChecked = false;
 593         mIsSharedSupported = false;
 594         mOkButton.setEnabled(false);
 595         mDiscoveredVersion = null;
 596         hideRefreshButton();
 597         if (uri.length() != 0) {
 598             mServerStatusText = R.string.auth_testing_connection;
 599             mServerStatusIcon = R.drawable.progress_small;
 600             showServerStatus();
 601             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 602             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 603             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 604         } else {
 605             mServerStatusText = 0;
 606             mServerStatusIcon = 0;
 607             showServerStatus();
 608         }
 609     }
 610
 611
 612     /**
 613      * Handles changes in focus on the text input for the password (basic authorization).
 614      *
 615      * When (hasFocus), the button to toggle password visibility is shown.
 616      *
 617      * When (!hasFocus), the button is made invisible and the password is hidden.
 618      *
 619      * @param passwordInput    TextView with the password input field receiving the change of focus.
 620      * @param hasFocus          'True' if focus is received, 'false' if is lost
 621      */
 622     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 623         if (hasFocus) {
 624             showViewPasswordButton();
 625         } else {
 626             hidePassword();
 627             hidePasswordButton();
 628         }
 629     }
 630
 631
 632     private void showViewPasswordButton() {
 633         //int drawable = android.R.drawable.ic_menu_view;
 634         int drawable = R.drawable.ic_view;
 635         if (isPasswordVisible()) {
 636             //drawable = android.R.drawable.ic_secure;
 637             drawable = R.drawable.ic_hide;
 638         }
 639         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 640     }
 641
 642     private boolean isPasswordVisible() {
 643         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 644     }
 645
 646     private void hidePasswordButton() {
 647         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 648     }
 649
 650     private void showPassword() {
 651         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 652         showViewPasswordButton();
 653     }
 654
 655     private void hidePassword() {
 656         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 657         showViewPasswordButton();
 658     }
 659
 660
 661     /**
 662      * Cancels the authenticator activity
 663      *
 664      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 665      *
 666      * This method is bound in the layout/acceoun_setup.xml resource file.
 667      *
 668      * @param view      Cancel button
 669      */
 670     public void onCancelClick(View view) {
 671         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 672         finish();
 673     }
 674
 675
 676
 677     /**
 678      * Checks the credentials of the user in the root of the ownCloud server
 679      * before creating a new local account.
 680      *
 681      * For basic authorization, a check of existence of the root folder is
 682      * performed.
 683      *
 684      * For OAuth, starts the flow to get an access token; the credentials test
 685      * is postponed until it is available.
 686      *
 687      * IMPORTANT ENTRY POINT 4
 688      *
 689      * @param view      OK button
 690      */
 691     public void onOkClick(View view) {
 692         // this check should be unnecessary
 693         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 694             mServerStatusIcon = R.drawable.common_error;
 695             mServerStatusText = R.string.auth_wtf_reenter_URL;
 696             showServerStatus();
 697             mOkButton.setEnabled(false);
 698             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 699             return;
 700         }
 701
 702         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 703             startOauthorization();
 704         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 705             startSamlBasedFederatedSingleSignOnAuthorization();
 706         } else {
 707             checkBasicAuthorization();
 708         }
 709     }
 710
 711
 712     /**
 713      * Tests the credentials entered by the user performing a check of existence on
 714      * the root folder of the ownCloud server.
 715      */
 716     private void checkBasicAuthorization() {
 717         /// get the path to the root folder through WebDAV from the version server
 718         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 719
 720         /// get basic credentials entered by user
 721         String username = mUsernameInput.getText().toString();
 722         String password = mPasswordInput.getText().toString();
 723
 724         /// be gentle with the user
 725         showDialog(DIALOG_LOGIN_PROGRESS);
 726
 727         /// test credentials accessing the root folder
 728         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 729         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 730         client.setBasicCredentials(username, password);
 731         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 732     }
 733
 734
 735     /**
 736      * Starts the OAuth 'grant type' flow to get an access token, with
 737      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 738      */
 739     private void startOauthorization() {
 740         // be gentle with the user
 741         mAuthStatusIcon = R.drawable.progress_small;
 742         mAuthStatusText = R.string.oauth_login_connection;
 743         showAuthStatus();
 744
 745
 746         // GET AUTHORIZATION request
 747         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 748         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 749         Uri.Builder uriBuilder = uri.buildUpon();
 750         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 751         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 752         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 753         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 754         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 755         uri = uriBuilder.build();
 756         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 757         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 758         startActivity(i);
 759     }
 760
 761
 762     /**
 763      * Starts the Web Single Sign On flow to get access to the root folder
 764      * in the server.
 765      */
 766     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 767         // be gentle with the user
 768         mAuthStatusIcon = R.drawable.progress_small;
 769         mAuthStatusText = R.string.auth_connecting_auth_server;
 770         showAuthStatus();
 771         showDialog(DIALOG_LOGIN_PROGRESS);
 772
 773         /// get the path to the root folder through WebDAV from the version server
 774         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 775
 776         /// test credentials accessing the root folder
 777         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 778         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 779         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 780
 781     }
 782
 783     /**
 784      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 785      *
 786      * Dispatches the operation flow to the right method.
 787      */
 788     @Override
 789     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 790
 791         if (operation instanceof OwnCloudServerCheckOperation) {
 792             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 793
 794         } else if (operation instanceof OAuth2GetAccessToken) {
 795             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 796
 797         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 798             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 799                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 800
 801             } else {
 802                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 803             }
 804         } else if (operation instanceof GetUserNameRemoteOperation) {
 805             onGetUserNameFinish((GetUserNameRemoteOperation) operation, result);
 806
 807         }
 808
 809     }
 810
 811     private void onGetUserNameFinish(GetUserNameRemoteOperation operation, RemoteOperationResult result) {
 812         if (result.isSuccess()) {
 813             boolean success = false;
 814             String username = operation.getUserName();
 815
 816             if ( mAction == ACTION_CREATE) {
 817                 mUsernameInput.setText(username);
 818                 success = createAccount();
 819             } else {
 820
 821                 if (!mUsernameInput.getText().toString().equals(username)) {
 822                     // fail - not a new account, but an existing one; disallow
 823                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 824                     updateAuthStatusIconAndText(result);
 825                     showAuthStatus();
 826                     Log_OC.d(TAG, result.getLogMessage());
 827                 } else {
 828                   updateToken();
 829                   success = true;
 830                 }
 831             }
 832
 833             if (success)
 834                 finish();
 835         }
 836
 837     }
 838
 839     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 840         try {
 841             dismissDialog(DIALOG_LOGIN_PROGRESS);
 842         } catch (IllegalArgumentException e) {
 843             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 844         }
 845
 846         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 847         if (result.isIdPRedirection()) {
 848             String url = result.getRedirectedLocation();
 849             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 850
 851             // Show dialog
 852             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 853             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 854
 855             mAuthStatusIcon = 0;
 856             mAuthStatusText = 0;
 857
 858         } else {
 859             mAuthStatusIcon = R.drawable.common_error;
 860             mAuthStatusText = R.string.auth_unsupported_auth_method;
 861
 862         }
 863         showAuthStatus();
 864     }
 865
 866
 867     /**
 868      * Processes the result of the server check performed when the user finishes the enter of the
 869      * server URL.
 870      *
 871      * @param operation     Server check performed.
 872      * @param result        Result of the check.
 873      */
 874     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 875         if (operation.equals(mOcServerChkOperation)) {
 876             /// save result state
 877             mServerIsChecked = true;
 878             mServerIsValid = result.isSuccess();
 879             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 880             mOcServerChkOperation = null;
 881
 882             /// update status icon and text
 883             if (mServerIsValid) {
 884                 hideRefreshButton();
 885             } else {
 886                 showRefreshButton();
 887             }
 888             updateServerStatusIconAndText(result);
 889             showServerStatus();
 890
 891             /// very special case (TODO: move to a common place for all the remote operations)
 892             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 893                 mLastSslUntrustedServerResult = result;
 894                 showDialog(DIALOG_SSL_VALIDATOR);
 895             }
 896
 897             /// retrieve discovered version and normalize server URL
 898             mDiscoveredVersion = operation.getDiscoveredVersion();
 899             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 900
 901             /// allow or not the user try to access the server
 902             mOkButton.setEnabled(mServerIsValid);
 903
 904             /// retrieve if is supported the Share API
 905             mIsSharedSupported = operation.isSharedSupported();
 906
 907         }   // else nothing ; only the last check operation is considered;
 908         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 909     }
 910
 911
 912     private String normalizeUrl(String url) {
 913         if (url != null && url.length() > 0) {
 914             url = url.trim();
 915             if (!url.toLowerCase().startsWith("http://") &&
 916                     !url.toLowerCase().startsWith("https://")) {
 917                 if (mIsSslConn) {
 918                     url = "https://" + url;
 919                 } else {
 920                     url = "http://" + url;
 921                 }
 922             }
 923
 924             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 925             url = trimUrlWebdav(url);
 926
 927             if (url.endsWith("/")) {
 928                 url = url.substring(0, url.length() - 1);
 929             }
 930
 931         }
 932         return (url != null ? url : "");
 933     }
 934
 935
 936     private String trimUrlWebdav(String url){
 937         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 938             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 939         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 940             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 941         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 942             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 943         }
 944         return (url != null ? url : "");
 945     }
 946
 947
 948     /**
 949      * Chooses the right icon and text to show to the user for the received operation result.
 950      *
 951      * @param result    Result of a remote operation performed in this activity
 952      */
 953     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 954         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 955
 956         switch (result.getCode()) {
 957         case OK_SSL:
 958             mServerStatusIcon = android.R.drawable.ic_secure;
 959             mServerStatusText = R.string.auth_secure_connection;
 960             break;
 961
 962         case OK_NO_SSL:
 963         case OK:
 964             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 965                 mServerStatusText = R.string.auth_connection_established;
 966                 mServerStatusIcon = R.drawable.ic_ok;
 967             } else {
 968                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 969                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 970             }
 971             break;
 972
 973         case NO_NETWORK_CONNECTION:
 974             mServerStatusIcon = R.drawable.no_network;
 975             mServerStatusText = R.string.auth_no_net_conn_title;
 976             break;
 977
 978         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 979             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 980             break;
 981         case BAD_OC_VERSION:
 982             mServerStatusText = R.string.auth_bad_oc_version_title;
 983             break;
 984         case WRONG_CONNECTION:
 985             mServerStatusText = R.string.auth_wrong_connection_title;
 986             break;
 987         case TIMEOUT:
 988             mServerStatusText = R.string.auth_timeout_title;
 989             break;
 990         case INCORRECT_ADDRESS:
 991             mServerStatusText = R.string.auth_incorrect_address_title;
 992             break;
 993         case SSL_ERROR:
 994             mServerStatusText = R.string.auth_ssl_general_error_title;
 995             break;
 996         case UNAUTHORIZED:
 997             mServerStatusText = R.string.auth_unauthorized;
 998             break;
 999         case HOST_NOT_AVAILABLE:
1000             mServerStatusText = R.string.auth_unknown_host_title;
1001             break;
1002         case INSTANCE_NOT_CONFIGURED:
1003             mServerStatusText = R.string.auth_not_configured_title;
1004             break;
1005         case FILE_NOT_FOUND:
1006             mServerStatusText = R.string.auth_incorrect_path_title;
1007             break;
1008         case OAUTH2_ERROR:
1009             mServerStatusText = R.string.auth_oauth_error;
1010             break;
1011         case OAUTH2_ERROR_ACCESS_DENIED:
1012             mServerStatusText = R.string.auth_oauth_error_access_denied;
1013             break;
1014         case UNHANDLED_HTTP_CODE:
1015         case UNKNOWN_ERROR:
1016             mServerStatusText = R.string.auth_unknown_error_title;
1017             break;
1018         default:
1019             mServerStatusText = 0;
1020             mServerStatusIcon = 0;
1021         }
1022     }
1023
1024
1025     /**
1026      * Chooses the right icon and text to show to the user for the received operation result.
1027      *
1028      * @param result    Result of a remote operation performed in this activity
1029      */
1030     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1031         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1032
1033         switch (result.getCode()) {
1034         case OK_SSL:
1035             mAuthStatusIcon = android.R.drawable.ic_secure;
1036             mAuthStatusText = R.string.auth_secure_connection;
1037             break;
1038
1039         case OK_NO_SSL:
1040         case OK:
1041             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1042                 mAuthStatusText = R.string.auth_connection_established;
1043                 mAuthStatusIcon = R.drawable.ic_ok;
1044             } else {
1045                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1046                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1047             }
1048             break;
1049
1050         case NO_NETWORK_CONNECTION:
1051             mAuthStatusIcon = R.drawable.no_network;
1052             mAuthStatusText = R.string.auth_no_net_conn_title;
1053             break;
1054
1055         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1056             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1057             break;
1058         case BAD_OC_VERSION:
1059             mAuthStatusText = R.string.auth_bad_oc_version_title;
1060             break;
1061         case WRONG_CONNECTION:
1062             mAuthStatusText = R.string.auth_wrong_connection_title;
1063             break;
1064         case TIMEOUT:
1065             mAuthStatusText = R.string.auth_timeout_title;
1066             break;
1067         case INCORRECT_ADDRESS:
1068             mAuthStatusText = R.string.auth_incorrect_address_title;
1069             break;
1070         case SSL_ERROR:
1071             mAuthStatusText = R.string.auth_ssl_general_error_title;
1072             break;
1073         case UNAUTHORIZED:
1074             mAuthStatusText = R.string.auth_unauthorized;
1075             break;
1076         case HOST_NOT_AVAILABLE:
1077             mAuthStatusText = R.string.auth_unknown_host_title;
1078             break;
1079         case INSTANCE_NOT_CONFIGURED:
1080             mAuthStatusText = R.string.auth_not_configured_title;
1081             break;
1082         case FILE_NOT_FOUND:
1083             mAuthStatusText = R.string.auth_incorrect_path_title;
1084             break;
1085         case OAUTH2_ERROR:
1086             mAuthStatusText = R.string.auth_oauth_error;
1087             break;
1088         case OAUTH2_ERROR_ACCESS_DENIED:
1089             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1090             break;
1091         case ACCOUNT_NOT_NEW:
1092             mAuthStatusText = R.string.auth_account_not_new;
1093             break;
1094         case ACCOUNT_NOT_THE_SAME:
1095             mAuthStatusText = R.string.auth_account_not_the_same;
1096             break;
1097         case UNHANDLED_HTTP_CODE:
1098         case UNKNOWN_ERROR:
1099             mAuthStatusText = R.string.auth_unknown_error_title;
1100             break;
1101         default:
1102             mAuthStatusText = 0;
1103             mAuthStatusIcon = 0;
1104         }
1105     }
1106
1107
1108     /**
1109      * Processes the result of the request for and access token send
1110      * to an OAuth authorization server.
1111      *
1112      * @param operation     Operation performed requesting the access token.
1113      * @param result        Result of the operation.
1114      */
1115     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1116         try {
1117             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1118         } catch (IllegalArgumentException e) {
1119             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1120         }
1121
1122         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1123         if (result.isSuccess() && webdav_path != null) {
1124             /// be gentle with the user
1125             showDialog(DIALOG_LOGIN_PROGRESS);
1126
1127             /// time to test the retrieved access token on the ownCloud server
1128             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1129             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1130             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1131             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1132             client.setBearerCredentials(mAuthToken);
1133             mAuthCheckOperation.execute(client, this, mHandler);
1134
1135         } else {
1136             updateAuthStatusIconAndText(result);
1137             showAuthStatus();
1138             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1139         }
1140     }
1141
1142
1143     /**
1144      * Processes the result of the access check performed to try the user credentials.
1145      *
1146      * Creates a new account through the AccountManager.
1147      *
1148      * @param operation     Access check performed.
1149      * @param result        Result of the operation.
1150      */
1151     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1152         try {
1153             dismissDialog(DIALOG_LOGIN_PROGRESS);
1154         } catch (IllegalArgumentException e) {
1155             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1156         }
1157
1158         if (result.isSuccess()) {
1159             Log_OC.d(TAG, "Successful access - time to save the account");
1160
1161             boolean success = false;
1162             if (mAction == ACTION_CREATE) {
1163                 success = createAccount();
1164
1165             } else {
1166                 updateToken();
1167                 success = true;
1168             }
1169
1170             if (success) {
1171                 finish();
1172             }
1173
1174         } else if (result.isServerFail() || result.isException()) {
1175             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1176             mServerIsChecked = true;
1177             mServerIsValid = false;
1178             mIsSslConn = false;
1179             mOcServerChkOperation = null;
1180             mDiscoveredVersion = null;
1181             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1182
1183             // update status icon and text
1184             updateServerStatusIconAndText(result);
1185             showServerStatus();
1186             mAuthStatusIcon = 0;
1187             mAuthStatusText = 0;
1188             showAuthStatus();
1189
1190             // update input controls state
1191             showRefreshButton();
1192             mOkButton.setEnabled(false);
1193
1194             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1195             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1196                 mLastSslUntrustedServerResult = result;
1197                 showDialog(DIALOG_SSL_VALIDATOR);
1198             }
1199
1200         } else {    // authorization fail due to client side - probably wrong credentials
1201             updateAuthStatusIconAndText(result);
1202             showAuthStatus();
1203             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1204         }
1205
1206     }
1207
1208
1209     /**
1210      * Sets the proper response to get that the Account Authenticator that started this activity saves
1211      * a new authorization token for mAccount.
1212      */
1213     private void updateToken() {
1214         Bundle response = new Bundle();
1215         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1216         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1217
1218         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1219             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1220             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1221             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1222
1223         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1224
1225             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1226             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1227             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1228
1229         } else {
1230             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1231             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1232         }
1233         setAccountAuthenticatorResult(response);
1234
1235     }
1236
1237
1238     /**
1239      * Creates a new account through the Account Authenticator that started this activity.
1240      *
1241      * This makes the account permanent.
1242      *
1243      * TODO Decide how to name the OAuth accounts
1244      */
1245     private boolean createAccount() {
1246         /// create and save new ownCloud account
1247         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1248         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1249
1250         Uri uri = Uri.parse(mHostBaseUrl);
1251         String username = mUsernameInput.getText().toString().trim();
1252         if (isOAuth) {
1253             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1254         }
1255         String accountName = username + "@" + uri.getHost();
1256         if (uri.getPort() >= 0) {
1257             accountName += ":" + uri.getPort();
1258         }
1259         mAccount = new Account(accountName, MainApp.getAccountType());
1260         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1261             // fail - not a new account, but an existing one; disallow
1262             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1263             updateAuthStatusIconAndText(result);
1264             showAuthStatus();
1265             Log_OC.d(TAG, result.getLogMessage());
1266             return false;
1267
1268         } else {
1269
1270             if (isOAuth || isSaml) {
1271                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1272             } else {
1273                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1274             }
1275
1276             /// add the new account as default in preferences, if there is none already
1277             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1278             if (defaultAccount == null) {
1279                 SharedPreferences.Editor editor = PreferenceManager
1280                         .getDefaultSharedPreferences(this).edit();
1281                 editor.putString("select_oc_account", accountName);
1282                 editor.commit();
1283             }
1284
1285             /// prepare result to return to the Authenticator
1286             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1287             final Intent intent = new Intent();
1288             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1289             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1290             /*if (!isOAuth)
1291                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1292             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1293             if (isOAuth || isSaml) {
1294                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1295             }
1296             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1297             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1298             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1299             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SHARE_API, Boolean.toString(mIsSharedSupported));
1300             if (isSaml) {
1301                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1302             } else if (isOAuth) {
1303                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1304             }
1305
1306             setAccountAuthenticatorResult(intent.getExtras());
1307             setResult(RESULT_OK, intent);
1308
1309             return true;
1310         }
1311     }
1312
1313
1314     /**
1315      * {@inheritDoc}
1316      *
1317      * Necessary to update the contents of the SSL Dialog
1318      *
1319      * TODO move to some common place for all possible untrusted SSL failures
1320      */
1321     @Override
1322     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1323         switch (id) {
1324         case DIALOG_LOGIN_PROGRESS:
1325         case DIALOG_CERT_NOT_SAVED:
1326         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1327             break;
1328         case DIALOG_SSL_VALIDATOR: {
1329             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1330             break;
1331         }
1332         default:
1333             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1334         }
1335     }
1336
1337
1338     /**
1339      * {@inheritDoc}
1340      */
1341     @Override
1342     protected Dialog onCreateDialog(int id) {
1343         Dialog dialog = null;
1344         switch (id) {
1345         case DIALOG_LOGIN_PROGRESS: {
1346             /// simple progress dialog
1347             ProgressDialog working_dialog = new ProgressDialog(this);
1348             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1349             working_dialog.setIndeterminate(true);
1350             working_dialog.setCancelable(true);
1351             working_dialog
1352             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1353                 @Override
1354                 public void onCancel(DialogInterface dialog) {
1355                     /// TODO study if this is enough
1356                     Log_OC.i(TAG, "Login canceled");
1357                     if (mOperationThread != null) {
1358                         mOperationThread.interrupt();
1359                         finish();
1360                     }
1361                 }
1362             });
1363             dialog = working_dialog;
1364             break;
1365         }
1366         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1367             ProgressDialog working_dialog = new ProgressDialog(this);
1368             working_dialog.setMessage(String.format("Getting authorization"));
1369             working_dialog.setIndeterminate(true);
1370             working_dialog.setCancelable(true);
1371             working_dialog
1372             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1373                 @Override
1374                 public void onCancel(DialogInterface dialog) {
1375                     Log_OC.i(TAG, "Login canceled");
1376                     finish();
1377                 }
1378             });
1379             dialog = working_dialog;
1380             break;
1381         }
1382         case DIALOG_SSL_VALIDATOR: {
1383             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1384             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1385             break;
1386         }
1387         case DIALOG_CERT_NOT_SAVED: {
1388             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1389             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1390             builder.setCancelable(false);
1391             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1392                 @Override
1393                 public void onClick(DialogInterface dialog, int which) {
1394                     dialog.dismiss();
1395                 };
1396             });
1397             dialog = builder.create();
1398             break;
1399         }
1400         default:
1401             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1402         }
1403         return dialog;
1404     }
1405
1406
1407     /**
1408      * Starts and activity to open the 'new account' page in the ownCloud web site
1409      *
1410      * @param view      'Account register' button
1411      */
1412     public void onRegisterClick(View view) {
1413         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1414         setResult(RESULT_CANCELED);
1415         startActivity(register);
1416     }
1417
1418
1419     /**
1420      * Updates the content and visibility state of the icon and text associated
1421      * to the last check on the ownCloud server.
1422      */
1423     private void showServerStatus() {
1424         TextView tv = (TextView) findViewById(R.id.server_status_text);
1425
1426         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1427             tv.setVisibility(View.INVISIBLE);
1428
1429         } else {
1430             tv.setText(mServerStatusText);
1431             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1432             tv.setVisibility(View.VISIBLE);
1433         }
1434
1435     }
1436
1437
1438     /**
1439      * Updates the content and visibility state of the icon and text associated
1440      * to the interactions with the OAuth authorization server.
1441      */
1442     private void showAuthStatus() {
1443         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1444             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1445
1446         } else {
1447             mAuthStatusLayout.setText(mAuthStatusText);
1448             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1449             mAuthStatusLayout.setVisibility(View.VISIBLE);
1450         }
1451     }
1452
1453
1454     private void showRefreshButton() {
1455         mRefreshButton.setVisibility(View.VISIBLE);
1456     }
1457
1458     private void hideRefreshButton() {
1459         mRefreshButton.setVisibility(View.GONE);
1460     }
1461
1462     /**
1463      * Called when the refresh button in the input field for ownCloud host is clicked.
1464      *
1465      * Performs a new check on the URL in the input field.
1466      *
1467      * @param view      Refresh 'button'
1468      */
1469     public void onRefreshClick(View view) {
1470         checkOcServer();
1471     }
1472
1473
1474     /**
1475      * Called when the eye icon in the password field is clicked.
1476      *
1477      * Toggles the visibility of the password in the field.
1478      */
1479     public void onViewPasswordClick() {
1480         int selectionStart = mPasswordInput.getSelectionStart();
1481         int selectionEnd = mPasswordInput.getSelectionEnd();
1482         if (isPasswordVisible()) {
1483             hidePassword();
1484         } else {
1485             showPassword();
1486         }
1487         mPasswordInput.setSelection(selectionStart, selectionEnd);
1488     }
1489
1490
1491     /**
1492      * Called when the checkbox for OAuth authorization is clicked.
1493      *
1494      * Hides or shows the input fields for user & password.
1495      *
1496      * @param view      'View password' 'button'
1497      */
1498     public void onCheckClick(View view) {
1499         CheckBox oAuth2Check = (CheckBox)view;
1500         if (oAuth2Check.isChecked()) {
1501             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1502         } else {
1503             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1504         }
1505         adaptViewAccordingToAuthenticationMethod();
1506     }
1507
1508
1509     /**
1510      * Changes the visibility of input elements depending on
1511      * the current authorization method.
1512      */
1513     private void adaptViewAccordingToAuthenticationMethod () {
1514         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1515             // OAuth 2 authorization
1516             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1517             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1518             mUsernameInput.setVisibility(View.GONE);
1519             mPasswordInput.setVisibility(View.GONE);
1520
1521         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1522             // SAML-based web Single Sign On
1523             mOAuthAuthEndpointText.setVisibility(View.GONE);
1524             mOAuthTokenEndpointText.setVisibility(View.GONE);
1525             mUsernameInput.setVisibility(View.GONE);
1526             mPasswordInput.setVisibility(View.GONE);
1527         } else {
1528             // basic HTTP authorization
1529             mOAuthAuthEndpointText.setVisibility(View.GONE);
1530             mOAuthTokenEndpointText.setVisibility(View.GONE);
1531             mUsernameInput.setVisibility(View.VISIBLE);
1532             mPasswordInput.setVisibility(View.VISIBLE);
1533         }
1534     }
1535
1536     /**
1537      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1538      */
1539     public void onSavedCertificate() {
1540         checkOcServer();
1541     }
1542
1543     /**
1544      * Called from SslValidatorDialog when a new server certificate could not be saved
1545      * when the user requested it.
1546      */
1547     @Override
1548     public void onFailedSavingCertificate() {
1549         showDialog(DIALOG_CERT_NOT_SAVED);
1550     }
1551
1552
1553     /**
1554      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1555      *
1556      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1557      *  or to throw the server test when the only field on screen is the URL input field.
1558      */
1559     @Override
1560     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1561         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1562             if (mOkButton.isEnabled()) {
1563                 mOkButton.performClick();
1564             }
1565
1566         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1567             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1568                 checkOcServer();
1569             }
1570         }
1571         return false;   // always return false to grant that the software keyboard is hidden anyway
1572     }
1573
1574
1575     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1576
1577         private int fuzz = 75;
1578
1579         /**
1580          * {@inheritDoc}
1581          */
1582         @Override
1583         public boolean onTouch(View view, MotionEvent event) {
1584             Drawable rightDrawable = null;
1585             if (view instanceof TextView) {
1586                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1587                 if (drawables.length > 2) {
1588                     rightDrawable = drawables[2];
1589                 }
1590             }
1591             if (rightDrawable != null) {
1592                 final int x = (int) event.getX();
1593                 final int y = (int) event.getY();
1594                 final Rect bounds = rightDrawable.getBounds();
1595                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1596                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1597
1598                     return onDrawableTouch(event);
1599                 }
1600             }
1601             return false;
1602         }
1603
1604         public abstract boolean onDrawableTouch(final MotionEvent event);
1605     }
1606
1607
1608     public void onSamlDialogSuccess(String sessionCookie){
1609         mAuthToken = sessionCookie;
1610
1611         if (sessionCookie != null && sessionCookie.length() > 0) {
1612             mAuthToken = sessionCookie;
1613
1614             GetUserNameRemoteOperation getUserOperation = new GetUserNameRemoteOperation();
1615             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1616             client.setSsoSessionCookie(mAuthToken);
1617             getUserOperation.execute(client, this, mHandler);
1618         }
1619
1620
1621     }
1622
1623
1624     @Override
1625     public void onSsoFinished(String sessionCookies) {
1626         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1627
1628         if (sessionCookies != null && sessionCookies.length() > 0) {
1629             Log_OC.d(TAG, "Successful SSO - time to save the account");
1630             onSamlDialogSuccess(sessionCookies);
1631             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1632             if (fd != null && fd instanceof SherlockDialogFragment) {
1633                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1634                 if (d != null && d.isShowing()) {
1635                     d.dismiss();
1636                 }
1637             }
1638
1639         } else {
1640             // TODO - show fail
1641             Log_OC.d(TAG, "SSO failed");
1642         }
1643
1644     }
1645
1646     /** Show auth_message
1647      *
1648      * @param message
1649      */
1650     private void showAuthMessage(String message) {
1651        mAuthMessage.setVisibility(View.VISIBLE);
1652        mAuthMessage.setText(message);
1653     }
1654
1655     private void hideAuthMessage() {
1656         mAuthMessage.setVisibility(View.GONE);
1657     }
1658
1659     @Override
1660     public boolean onTouchEvent(MotionEvent event) {
1661         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1662                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1663             checkOcServer();
1664         }
1665         return super.onTouchEvent(event);
1666     }
1667
1668 }