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