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