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