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 java.net.URLDecoder;
  22
  23 import android.accounts.Account;
  24 import android.accounts.AccountManager;
  25 import android.app.AlertDialog;
  26 import android.app.Dialog;
  27 import android.app.ProgressDialog;
  28 import android.content.ContentResolver;
  29 import android.content.DialogInterface;
  30 import android.content.Intent;
  31 import android.content.SharedPreferences;
  32 import android.graphics.Rect;
  33 import android.graphics.drawable.Drawable;
  34 import android.net.Uri;
  35 import android.os.Bundle;
  36 import android.os.Handler;
  37 import android.preference.PreferenceManager;
  38 import android.support.v4.app.Fragment;
  39 import android.text.Editable;
  40 import android.text.InputType;
  41 import android.text.TextWatcher;
  42 import android.view.KeyEvent;
  43 import android.view.MotionEvent;
  44 import android.view.View;
  45 import android.view.View.OnFocusChangeListener;
  46 import android.view.View.OnTouchListener;
  47 import android.view.Window;
  48 import android.view.inputmethod.EditorInfo;
  49 import android.widget.Button;
  50 import android.widget.CheckBox;
  51 import android.widget.EditText;
  52 import android.widget.TextView;
  53 import android.widget.TextView.OnEditorActionListener;
  54 import android.widget.Toast;
  55
  56 import com.actionbarsherlock.app.SherlockDialogFragment;
  57 import com.owncloud.android.Log_OC;
  58 import com.owncloud.android.R;
  59 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  60 import com.owncloud.android.network.OwnCloudClientUtils;
  61 import com.owncloud.android.operations.ExistenceCheckOperation;
  62 import com.owncloud.android.operations.OAuth2GetAccessToken;
  63 import com.owncloud.android.operations.OnRemoteOperationListener;
  64 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  65 import com.owncloud.android.operations.RemoteOperation;
  66 import com.owncloud.android.operations.RemoteOperationResult;
  67 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  68 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  71 import com.owncloud.android.utils.OwnCloudVersion;
  72
  73 import eu.alefzero.webdav.WebdavClient;
  74
  75 /**
  76  * This Activity is used to add an ownCloud account to the App
  77  *
  78  * @author Bartek Przybylski
  79  * @author David A. Velasco
  80  */
  81 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  82 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  83
  84     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  85
  86     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  87     public static final String EXTRA_USER_NAME = "USER_NAME";
  88     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  89     public static final String EXTRA_ACTION = "ACTION";
  90     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  91
  92     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  93     private static final String KEY_OC_VERSION = "OC_VERSION";
  94     private static final String KEY_ACCOUNT = "ACCOUNT";
  95     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  96     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  97     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  98     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  99     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 100     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 101     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 102     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 103     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 104     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 105
 106     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 107
 108     private static final String AUTH_ON = "on";
 109     private static final String AUTH_OFF = "off";
 110     private static final String AUTH_OPTIONAL = "optional";
 111
 112     private static final int DIALOG_LOGIN_PROGRESS = 0;
 113     private static final int DIALOG_SSL_VALIDATOR = 1;
 114     private static final int DIALOG_CERT_NOT_SAVED = 2;
 115     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 116
 117     public static final byte ACTION_CREATE = 0;
 118     public static final byte ACTION_UPDATE_TOKEN = 1;
 119
 120     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 121
 122     private String mHostBaseUrl;
 123     private OwnCloudVersion mDiscoveredVersion;
 124
 125     private int mServerStatusText, mServerStatusIcon;
 126     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 127     private int mAuthStatusText, mAuthStatusIcon;
 128     private TextView mAuthStatusLayout;
 129
 130     private final Handler mHandler = new Handler();
 131     private Thread mOperationThread;
 132     private OwnCloudServerCheckOperation mOcServerChkOperation;
 133     private ExistenceCheckOperation mAuthCheckOperation;
 134     private RemoteOperationResult mLastSslUntrustedServerResult;
 135
 136     private Uri mNewCapturedUriFromOAuth2Redirection;
 137
 138     private AccountManager mAccountMgr;
 139     private boolean mJustCreated;
 140     private byte mAction;
 141     private Account mAccount;
 142
 143     private EditText mHostUrlInput;
 144     private boolean mHostUrlInputEnabled;
 145     private View mRefreshButton;
 146
 147     private String mAuthTokenType;
 148
 149     private EditText mUsernameInput;
 150     private EditText mPasswordInput;
 151
 152     private CheckBox mOAuth2Check;
 153
 154     private TextView mOAuthAuthEndpointText;
 155     private TextView mOAuthTokenEndpointText;
 156
 157     private SamlWebViewDialog mSamlDialog;
 158
 159     private View mOkButton;
 160
 161     private String mAuthToken;
 162
 163
 164     /**
 165      * {@inheritDoc}
 166      *
 167      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 168      */
 169     @Override
 170     protected void onCreate(Bundle savedInstanceState) {
 171         super.onCreate(savedInstanceState);
 172         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 173
 174         /// set view and get references to view elements
 175         setContentView(R.layout.account_setup);
 176         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 177         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 178         mUsernameInput = (EditText) findViewById(R.id.account_username);
 179         mPasswordInput = (EditText) findViewById(R.id.account_password);
 180         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 181         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 182         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 183         mOkButton = findViewById(R.id.buttonOK);
 184         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 185
 186         /// set Host Url Input Enabled
 187         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 188
 189
 190         /// complete label for 'register account' button
 191         Button b = (Button) findViewById(R.id.account_register);
 192         if (b != null) {
 193             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 194         }
 195
 196         /// initialization
 197         mAccountMgr = AccountManager.get(this);
 198         mNewCapturedUriFromOAuth2Redirection = null;
 199         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 200         mAccount = null;
 201         mHostBaseUrl = "";
 202         boolean refreshButtonEnabled = false;
 203
 204         // URL input configuration applied
 205         if (!mHostUrlInputEnabled)
 206         {
 207             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 208             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 209
 210         } else {
 211             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 212         }
 213
 214         if (savedInstanceState == null) {
 215             /// connection state and info
 216             mServerStatusText = mServerStatusIcon = 0;
 217             mServerIsValid = false;
 218             mServerIsChecked = false;
 219             mIsSslConn = false;
 220             mAuthStatusText = mAuthStatusIcon = 0;
 221
 222             /// retrieve extras from intent
 223             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 224             if (mAccount != null) {
 225                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 226                 if (ocVersion != null) {
 227                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 228                 }
 229                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 230                 mHostUrlInput.setText(mHostBaseUrl);
 231             }
 232             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 233             mJustCreated = true;
 234
 235             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 236                 checkOcServer();
 237             }
 238
 239         } else {
 240             /// connection state and info
 241             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 242             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 243             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 244             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 245             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 246             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 247             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 248             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 249                 showPassword();
 250             }
 251
 252             /// server data
 253             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 254             if (ocVersion != null) {
 255                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 256             }
 257             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 258
 259             // account data, if updating
 260             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 261             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 262             if (mAuthTokenType == null) {
 263                 mAuthTokenType =  AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 264
 265             }
 266
 267             // check if server check was interrupted by a configuration change
 268             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 269                 checkOcServer();
 270             }
 271
 272             // refresh button enabled
 273             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 274
 275
 276         }
 277
 278         adaptViewAccordingToAuthenticationMethod();
 279         showServerStatus();
 280         showAuthStatus();
 281
 282         if (mAction == ACTION_UPDATE_TOKEN) {
 283             /// lock things that should not change
 284             mHostUrlInput.setEnabled(false);
 285             mHostUrlInput.setFocusable(false);
 286             mUsernameInput.setEnabled(false);
 287             mUsernameInput.setFocusable(false);
 288             mOAuth2Check.setVisibility(View.GONE);
 289         }
 290
 291         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 292         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 293         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 294
 295         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) ||
 296                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 297             mOAuth2Check.setVisibility(View.GONE);
 298         }
 299
 300         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 301
 302         /// bind view elements to listeners and other friends
 303         mHostUrlInput.setOnFocusChangeListener(this);
 304         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 305         mHostUrlInput.setOnEditorActionListener(this);
 306         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 307
 308             @Override
 309             public void afterTextChanged(Editable s) {
 310                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 311                     mOkButton.setEnabled(false);
 312                 }
 313             }
 314
 315             @Override
 316             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 317
 318             @Override
 319             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 320
 321         });
 322         mPasswordInput.setOnFocusChangeListener(this);
 323         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 324         mPasswordInput.setOnEditorActionListener(this);
 325         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 326             @Override
 327             public boolean onDrawableTouch(final MotionEvent event) {
 328                 if (event.getAction() == MotionEvent.ACTION_UP) {
 329                     AuthenticatorActivity.this.onViewPasswordClick();
 330                 }
 331                 return true;
 332             }
 333         });
 334
 335         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 336             @Override
 337             public boolean onTouch(View view, MotionEvent event) {
 338                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 339                     if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
 340                             mHostUrlInput.hasFocus()) {
 341                         checkOcServer();
 342                     }
 343                 }
 344                 return false;
 345             }
 346         });
 347     }
 348
 349
 350
 351     private void initAuthorizationMethod() {
 352         boolean oAuthRequired = false;
 353         boolean samlWebSsoRequired = false;
 354
 355         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 356         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 357
 358         // TODO could be a good moment to validate the received token type, if not null
 359
 360         if (mAuthTokenType == null) {
 361             if (mAccount != null) {
 362                 /// same authentication method than the one used to create the account to update
 363                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 364                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 365
 366             } else {
 367                 /// use the one set in setup.xml
 368                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 369                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 370             }
 371             if (oAuthRequired) {
 372                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
 373             } else if (samlWebSsoRequired) {
 374                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE;
 375             } else {
 376                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 377             }
 378         }
 379
 380         if (mAccount != null) {
 381             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 382             mUsernameInput.setText(userName);
 383         }
 384
 385         mOAuth2Check.setChecked(AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType));
 386
 387     }
 388
 389     /**
 390      * Saves relevant state before {@link #onPause()}
 391      *
 392      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 393      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 394      *
 395      * See {@link #loadSavedInstanceState(Bundle)}
 396      */
 397     @Override
 398     protected void onSaveInstanceState(Bundle outState) {
 399         super.onSaveInstanceState(outState);
 400
 401         /// connection state and info
 402         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 403         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 404         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 405         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 406         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 407         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 408         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 409         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 410         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 411
 412         /// server data
 413         if (mDiscoveredVersion != null) {
 414             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 415         }
 416         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 417
 418         /// account data, if updating
 419         if (mAccount != null) {
 420             outState.putParcelable(KEY_ACCOUNT, mAccount);
 421         }
 422         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 423
 424         // refresh button enabled
 425         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 426
 427
 428     }
 429
 430
 431     /**
 432      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 433      * is caught here.
 434      *
 435      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 436      * AndroidManifest.xml file.
 437      */
 438     @Override
 439     protected void onNewIntent (Intent intent) {
 440         Log_OC.d(TAG, "onNewIntent()");
 441         Uri data = intent.getData();
 442         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 443             mNewCapturedUriFromOAuth2Redirection = data;
 444         }
 445     }
 446
 447
 448     /**
 449      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 450      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 451      */
 452     @Override
 453     protected void onResume() {
 454         super.onResume();
 455         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 456             if (mOAuth2Check.isChecked())
 457                 Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 458             else
 459                 Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 460         }
 461
 462         if (mNewCapturedUriFromOAuth2Redirection != null) {
 463             getOAuth2AccessTokenFromCapturedRedirection();
 464         }
 465
 466         mJustCreated = false;
 467
 468     }
 469
 470
 471     /**
 472      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 473      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 474      */
 475     private void getOAuth2AccessTokenFromCapturedRedirection() {
 476         /// Parse data from OAuth redirection
 477         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 478         mNewCapturedUriFromOAuth2Redirection = null;
 479
 480         /// Showing the dialog with instructions for the user.
 481         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 482
 483         /// GET ACCESS TOKEN to the oAuth server
 484         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 485                 getString(R.string.oauth2_redirect_uri),
 486                 getString(R.string.oauth2_grant_type),
 487                 queryParameters);
 488         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 489         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 490         operation.execute(client, this, mHandler);
 491     }
 492
 493
 494
 495     /**
 496      * Handles the change of focus on the text inputs for the server URL and the password
 497      */
 498     public void onFocusChange(View view, boolean hasFocus) {
 499         if (view.getId() == R.id.hostUrlInput) {
 500             if (!hasFocus) {
 501                 onUrlInputFocusLost((TextView) view);
 502             }
 503             else {
 504                 hideRefreshButton();
 505             }
 506
 507         } else if (view.getId() == R.id.account_password) {
 508             onPasswordFocusChanged((TextView) view, hasFocus);
 509         }
 510     }
 511
 512
 513     /**
 514      * Handles changes in focus on the text input for the server URL.
 515      *
 516      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 517      * other field. The operation to check the existence of the server in the entered URL is
 518      * started.
 519      *
 520      * When hasFocus:    user 'comes back' to write again the server URL.
 521      *
 522      * @param hostInput     TextView with the URL input field receiving the change of focus.
 523      */
 524     private void onUrlInputFocusLost(TextView hostInput) {
 525         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 526             checkOcServer();
 527         } else {
 528             mOkButton.setEnabled(mServerIsValid);
 529             if (!mServerIsValid) {
 530                 showRefreshButton();
 531             }
 532         }
 533     }
 534
 535
 536     private void checkOcServer() {
 537         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 538
 539         if (!mHostUrlInputEnabled){
 540             uri = getString(R.string.server_url);
 541         }
 542
 543         mServerIsValid = false;
 544         mServerIsChecked = false;
 545         mOkButton.setEnabled(false);
 546         mDiscoveredVersion = null;
 547         hideRefreshButton();
 548         if (uri.length() != 0) {
 549             mServerStatusText = R.string.auth_testing_connection;
 550             mServerStatusIcon = R.drawable.progress_small;
 551             showServerStatus();
 552             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 553             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 554             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 555         } else {
 556             mServerStatusText = 0;
 557             mServerStatusIcon = 0;
 558             showServerStatus();
 559         }
 560     }
 561
 562
 563     /**
 564      * Handles changes in focus on the text input for the password (basic authorization).
 565      *
 566      * When (hasFocus), the button to toggle password visibility is shown.
 567      *
 568      * When (!hasFocus), the button is made invisible and the password is hidden.
 569      *
 570      * @param passwordInput    TextView with the password input field receiving the change of focus.
 571      * @param hasFocus          'True' if focus is received, 'false' if is lost
 572      */
 573     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 574         if (hasFocus) {
 575             showViewPasswordButton();
 576         } else {
 577             hidePassword();
 578             hidePasswordButton();
 579         }
 580     }
 581
 582
 583     private void showViewPasswordButton() {
 584         //int drawable = android.R.drawable.ic_menu_view;
 585         int drawable = R.drawable.ic_view;
 586         if (isPasswordVisible()) {
 587             //drawable = android.R.drawable.ic_secure;
 588             drawable = R.drawable.ic_hide;
 589         }
 590         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 591     }
 592
 593     private boolean isPasswordVisible() {
 594         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 595     }
 596
 597     private void hidePasswordButton() {
 598         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 599     }
 600
 601     private void showPassword() {
 602         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 603         showViewPasswordButton();
 604     }
 605
 606     private void hidePassword() {
 607         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 608         showViewPasswordButton();
 609     }
 610
 611
 612     /**
 613      * Cancels the authenticator activity
 614      *
 615      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 616      *
 617      * This method is bound in the layout/acceoun_setup.xml resource file.
 618      *
 619      * @param view      Cancel button
 620      */
 621     public void onCancelClick(View view) {
 622         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 623         finish();
 624     }
 625
 626
 627
 628     /**
 629      * Checks the credentials of the user in the root of the ownCloud server
 630      * before creating a new local account.
 631      *
 632      * For basic authorization, a check of existence of the root folder is
 633      * performed.
 634      *
 635      * For OAuth, starts the flow to get an access token; the credentials test
 636      * is postponed until it is available.
 637      *
 638      * IMPORTANT ENTRY POINT 4
 639      *
 640      * @param view      OK button
 641      */
 642     public void onOkClick(View view) {
 643         // this check should be unnecessary
 644         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 645             mServerStatusIcon = R.drawable.common_error;
 646             mServerStatusText = R.string.auth_wtf_reenter_URL;
 647             showServerStatus();
 648             mOkButton.setEnabled(false);
 649             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 650             return;
 651         }
 652
 653         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
 654             startOauthorization();
 655         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 656             startSamlBasedFederatedSingleSignOnAuthorization();
 657         } else {
 658             checkBasicAuthorization();
 659         }
 660     }
 661
 662
 663     /**
 664      * Tests the credentials entered by the user performing a check of existence on
 665      * the root folder of the ownCloud server.
 666      */
 667     private void checkBasicAuthorization() {
 668         /// get the path to the root folder through WebDAV from the version server
 669         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 670
 671         /// get basic credentials entered by user
 672         String username = mUsernameInput.getText().toString();
 673         String password = mPasswordInput.getText().toString();
 674
 675         /// be gentle with the user
 676         showDialog(DIALOG_LOGIN_PROGRESS);
 677
 678         /// test credentials accessing the root folder
 679         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 680         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 681         client.setBasicCredentials(username, password);
 682         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 683     }
 684
 685
 686     /**
 687      * Starts the OAuth 'grant type' flow to get an access token, with
 688      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 689      */
 690     private void startOauthorization() {
 691         // be gentle with the user
 692         mAuthStatusIcon = R.drawable.progress_small;
 693         mAuthStatusText = R.string.oauth_login_connection;
 694         showAuthStatus();
 695
 696
 697         // GET AUTHORIZATION request
 698         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 699         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 700         Uri.Builder uriBuilder = uri.buildUpon();
 701         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 702         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 703         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 704         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 705         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 706         uri = uriBuilder.build();
 707         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 708         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 709         startActivity(i);
 710     }
 711
 712
 713     /**
 714      * Starts the Web Single Sign On flow to get access to the root folder
 715      * in the server.
 716      */
 717     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 718         // be gentle with the user
 719         mAuthStatusIcon = R.drawable.progress_small;
 720         mAuthStatusText = R.string.auth_connecting_auth_server;
 721         showAuthStatus();
 722         showDialog(DIALOG_LOGIN_PROGRESS);
 723
 724         /// get the path to the root folder through WebDAV from the version server
 725         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 726
 727         /// test credentials accessing the root folder
 728         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 729         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 730         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 731
 732     }
 733
 734     /**
 735      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 736      *
 737      * Dispatches the operation flow to the right method.
 738      */
 739     @Override
 740     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 741
 742         if (operation instanceof OwnCloudServerCheckOperation) {
 743             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 744
 745         } else if (operation instanceof OAuth2GetAccessToken) {
 746             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 747
 748         } else if (operation instanceof ExistenceCheckOperation)  {
 749             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 750                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 751
 752             } else {
 753                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 754             }
 755         }
 756     }
 757
 758
 759     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 760         try {
 761             dismissDialog(DIALOG_LOGIN_PROGRESS);
 762         } catch (IllegalArgumentException e) {
 763             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 764         }
 765
 766         if (result.isTemporalRedirection() || result.isIdPRedirection()) {
 767             String url = result.getRedirectedLocation();
 768             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 769
 770             // Show dialog
 771             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 772             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 773
 774             mAuthStatusIcon = 0;
 775             mAuthStatusText = 0;
 776
 777         } else {
 778             mAuthStatusIcon = R.drawable.common_error;
 779             mAuthStatusText = R.string.auth_unsupported_auth_method;
 780
 781         }
 782         showAuthStatus();
 783     }
 784
 785
 786     /**
 787      * Processes the result of the server check performed when the user finishes the enter of the
 788      * server URL.
 789      *
 790      * @param operation     Server check performed.
 791      * @param result        Result of the check.
 792      */
 793     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 794         if (operation.equals(mOcServerChkOperation)) {
 795             /// save result state
 796             mServerIsChecked = true;
 797             mServerIsValid = result.isSuccess();
 798             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 799             mOcServerChkOperation = null;
 800
 801             /// update status icon and text
 802             if (mServerIsValid) {
 803                 hideRefreshButton();
 804             } else {
 805                 showRefreshButton();
 806             }
 807             updateServerStatusIconAndText(result);
 808             showServerStatus();
 809
 810             /// very special case (TODO: move to a common place for all the remote operations)
 811             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 812                 mLastSslUntrustedServerResult = result;
 813                 showDialog(DIALOG_SSL_VALIDATOR);
 814             }
 815
 816             /// retrieve discovered version and normalize server URL
 817             mDiscoveredVersion = operation.getDiscoveredVersion();
 818             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 819
 820             /// allow or not the user try to access the server
 821             mOkButton.setEnabled(mServerIsValid);
 822
 823         }   // else nothing ; only the last check operation is considered;
 824         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 825     }
 826
 827
 828     private String normalizeUrl(String url) {
 829         if (url != null && url.length() > 0) {
 830             url = url.trim();
 831             if (!url.toLowerCase().startsWith("http://") &&
 832                     !url.toLowerCase().startsWith("https://")) {
 833                 if (mIsSslConn) {
 834                     url = "https://" + url;
 835                 } else {
 836                     url = "http://" + url;
 837                 }
 838             }
 839
 840             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 841             url = trimUrlWebdav(url);
 842
 843             if (url.endsWith("/")) {
 844                 url = url.substring(0, url.length() - 1);
 845             }
 846
 847         }
 848         return (url != null ? url : "");
 849     }
 850
 851
 852     private String trimUrlWebdav(String url){
 853         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 854             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 855         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 856             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 857         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 858             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 859         }
 860         return (url != null ? url : "");
 861     }
 862
 863
 864     /**
 865      * Chooses the right icon and text to show to the user for the received operation result.
 866      *
 867      * @param result    Result of a remote operation performed in this activity
 868      */
 869     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 870         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 871
 872         switch (result.getCode()) {
 873         case OK_SSL:
 874             mServerStatusIcon = android.R.drawable.ic_secure;
 875             mServerStatusText = R.string.auth_secure_connection;
 876             break;
 877
 878         case OK_NO_SSL:
 879         case OK:
 880             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 881                 mServerStatusText = R.string.auth_connection_established;
 882                 mServerStatusIcon = R.drawable.ic_ok;
 883             } else {
 884                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 885                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 886             }
 887             break;
 888
 889         case NO_NETWORK_CONNECTION:
 890             mServerStatusIcon = R.drawable.no_network;
 891             mServerStatusText = R.string.auth_no_net_conn_title;
 892             break;
 893
 894         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 895             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 896             break;
 897         case BAD_OC_VERSION:
 898             mServerStatusText = R.string.auth_bad_oc_version_title;
 899             break;
 900         case WRONG_CONNECTION:
 901             mServerStatusText = R.string.auth_wrong_connection_title;
 902             break;
 903         case TIMEOUT:
 904             mServerStatusText = R.string.auth_timeout_title;
 905             break;
 906         case INCORRECT_ADDRESS:
 907             mServerStatusText = R.string.auth_incorrect_address_title;
 908             break;
 909         case SSL_ERROR:
 910             mServerStatusText = R.string.auth_ssl_general_error_title;
 911             break;
 912         case UNAUTHORIZED:
 913             mServerStatusText = R.string.auth_unauthorized;
 914             break;
 915         case HOST_NOT_AVAILABLE:
 916             mServerStatusText = R.string.auth_unknown_host_title;
 917             break;
 918         case INSTANCE_NOT_CONFIGURED:
 919             mServerStatusText = R.string.auth_not_configured_title;
 920             break;
 921         case FILE_NOT_FOUND:
 922             mServerStatusText = R.string.auth_incorrect_path_title;
 923             break;
 924         case OAUTH2_ERROR:
 925             mServerStatusText = R.string.auth_oauth_error;
 926             break;
 927         case OAUTH2_ERROR_ACCESS_DENIED:
 928             mServerStatusText = R.string.auth_oauth_error_access_denied;
 929             break;
 930         case UNHANDLED_HTTP_CODE:
 931         case UNKNOWN_ERROR:
 932             mServerStatusText = R.string.auth_unknown_error_title;
 933             break;
 934         default:
 935             mServerStatusText = 0;
 936             mServerStatusIcon = 0;
 937         }
 938     }
 939
 940
 941     /**
 942      * Chooses the right icon and text to show to the user for the received operation result.
 943      *
 944      * @param result    Result of a remote operation performed in this activity
 945      */
 946     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 947         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 948
 949         switch (result.getCode()) {
 950         case OK_SSL:
 951             mAuthStatusIcon = android.R.drawable.ic_secure;
 952             mAuthStatusText = R.string.auth_secure_connection;
 953             break;
 954
 955         case OK_NO_SSL:
 956         case OK:
 957             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 958                 mAuthStatusText = R.string.auth_connection_established;
 959                 mAuthStatusIcon = R.drawable.ic_ok;
 960             } else {
 961                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 962                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 963             }
 964             break;
 965
 966         case NO_NETWORK_CONNECTION:
 967             mAuthStatusIcon = R.drawable.no_network;
 968             mAuthStatusText = R.string.auth_no_net_conn_title;
 969             break;
 970
 971         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 972             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
 973             break;
 974         case BAD_OC_VERSION:
 975             mAuthStatusText = R.string.auth_bad_oc_version_title;
 976             break;
 977         case WRONG_CONNECTION:
 978             mAuthStatusText = R.string.auth_wrong_connection_title;
 979             break;
 980         case TIMEOUT:
 981             mAuthStatusText = R.string.auth_timeout_title;
 982             break;
 983         case INCORRECT_ADDRESS:
 984             mAuthStatusText = R.string.auth_incorrect_address_title;
 985             break;
 986         case SSL_ERROR:
 987             mAuthStatusText = R.string.auth_ssl_general_error_title;
 988             break;
 989         case UNAUTHORIZED:
 990             mAuthStatusText = R.string.auth_unauthorized;
 991             break;
 992         case HOST_NOT_AVAILABLE:
 993             mAuthStatusText = R.string.auth_unknown_host_title;
 994             break;
 995         case INSTANCE_NOT_CONFIGURED:
 996             mAuthStatusText = R.string.auth_not_configured_title;
 997             break;
 998         case FILE_NOT_FOUND:
 999             mAuthStatusText = R.string.auth_incorrect_path_title;
1000             break;
1001         case OAUTH2_ERROR:
1002             mAuthStatusText = R.string.auth_oauth_error;
1003             break;
1004         case OAUTH2_ERROR_ACCESS_DENIED:
1005             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1006             break;
1007         case ACCOUNT_NOT_NEW:
1008             mAuthStatusText = R.string.auth_account_not_new;
1009             break;
1010         case UNHANDLED_HTTP_CODE:
1011         case UNKNOWN_ERROR:
1012             mAuthStatusText = R.string.auth_unknown_error_title;
1013             break;
1014         default:
1015             mAuthStatusText = 0;
1016             mAuthStatusIcon = 0;
1017         }
1018     }
1019
1020
1021     /**
1022      * Processes the result of the request for and access token send
1023      * to an OAuth authorization server.
1024      *
1025      * @param operation     Operation performed requesting the access token.
1026      * @param result        Result of the operation.
1027      */
1028     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1029         try {
1030             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1031         } catch (IllegalArgumentException e) {
1032             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1033         }
1034
1035         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1036         if (result.isSuccess() && webdav_path != null) {
1037             /// be gentle with the user
1038             showDialog(DIALOG_LOGIN_PROGRESS);
1039
1040             /// time to test the retrieved access token on the ownCloud server
1041             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1042             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1043             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1044             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1045             client.setBearerCredentials(mAuthToken);
1046             mAuthCheckOperation.execute(client, this, mHandler);
1047
1048         } else {
1049             updateAuthStatusIconAndText(result);
1050             showAuthStatus();
1051             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1052         }
1053     }
1054
1055
1056     /**
1057      * Processes the result of the access check performed to try the user credentials.
1058      *
1059      * Creates a new account through the AccountManager.
1060      *
1061      * @param operation     Access check performed.
1062      * @param result        Result of the operation.
1063      */
1064     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1065         try {
1066             dismissDialog(DIALOG_LOGIN_PROGRESS);
1067         } catch (IllegalArgumentException e) {
1068             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1069         }
1070
1071         if (result.isSuccess()) {
1072             Log_OC.d(TAG, "Successful access - time to save the account");
1073
1074             boolean success = true;
1075             if (mAction == ACTION_CREATE) {
1076                 success = createAccount();
1077
1078             } else {
1079                 updateToken();
1080             }
1081
1082             if (success) {
1083                 finish();
1084             }
1085
1086         } else if (result.isServerFail() || result.isException()) {
1087             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1088             mServerIsChecked = true;
1089             mServerIsValid = false;
1090             mIsSslConn = false;
1091             mOcServerChkOperation = null;
1092             mDiscoveredVersion = null;
1093             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1094
1095             // update status icon and text
1096             updateServerStatusIconAndText(result);
1097             showServerStatus();
1098             mAuthStatusIcon = 0;
1099             mAuthStatusText = 0;
1100             showAuthStatus();
1101
1102             // update input controls state
1103             showRefreshButton();
1104             mOkButton.setEnabled(false);
1105
1106             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1107             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1108                 mLastSslUntrustedServerResult = result;
1109                 showDialog(DIALOG_SSL_VALIDATOR);
1110             }
1111
1112         } else {    // authorization fail due to client side - probably wrong credentials
1113             updateAuthStatusIconAndText(result);
1114             showAuthStatus();
1115             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1116         }
1117
1118     }
1119
1120
1121     /**
1122      * Sets the proper response to get that the Account Authenticator that started this activity saves
1123      * a new authorization token for mAccount.
1124      */
1125     private void updateToken() {
1126         Bundle response = new Bundle();
1127         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1128         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1129
1130         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1131             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1132             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1133             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1134
1135         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1136             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1137             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1138             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1139
1140         } else {
1141             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1142             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1143         }
1144         setAccountAuthenticatorResult(response);
1145     }
1146
1147
1148     /**
1149      * Creates a new account through the Account Authenticator that started this activity.
1150      *
1151      * This makes the account permanent.
1152      *
1153      * TODO Decide how to name the OAuth accounts
1154      */
1155     private boolean createAccount() {
1156         /// create and save new ownCloud account
1157         boolean isOAuth = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType);
1158         boolean isSaml =  AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType);
1159
1160         Uri uri = Uri.parse(mHostBaseUrl);
1161         String username = mUsernameInput.getText().toString().trim();
1162         if (isSaml) {
1163             username = getUserNameForSamlSso();
1164
1165         } else if (isOAuth) {
1166             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1167         }
1168         String accountName = username + "@" + uri.getHost();
1169         if (uri.getPort() >= 0) {
1170             accountName += ":" + uri.getPort();
1171         }
1172         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1173         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1174             // fail - not a new account, but an existing one; disallow
1175             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1176             updateAuthStatusIconAndText(result);
1177             showAuthStatus();
1178             Log_OC.d(TAG, result.getLogMessage());
1179             return false;
1180
1181
1182         } else {
1183
1184             if (isOAuth || isSaml) {
1185                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1186             } else {
1187                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1188             }
1189
1190             /// add the new account as default in preferences, if there is none already
1191             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1192             if (defaultAccount == null) {
1193                 SharedPreferences.Editor editor = PreferenceManager
1194                         .getDefaultSharedPreferences(this).edit();
1195                 editor.putString("select_oc_account", accountName);
1196                 editor.commit();
1197             }
1198
1199             /// prepare result to return to the Authenticator
1200             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1201             final Intent intent = new Intent();
1202             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1203             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1204             /*if (!isOAuth)
1205                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); */
1206             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1207             if (isOAuth || isSaml) {
1208                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1209             }
1210             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1211             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1212             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1213             if (isSaml) {
1214                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1215             } else if (isOAuth) {
1216                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1217             }
1218
1219             setAccountAuthenticatorResult(intent.getExtras());
1220             setResult(RESULT_OK, intent);
1221
1222             /// immediately request for the synchronization of the new account
1223             Bundle bundle = new Bundle();
1224             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1225             ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1226             return true;
1227         }
1228     }
1229
1230
1231     private String getUserNameForSamlSso() {
1232         if (mAuthToken != null) {
1233             String [] cookies = mAuthToken.split(";");
1234             for (int i=0; i<cookies.length; i++) {
1235                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1236                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1237                     return value;
1238                 }
1239             }
1240         }
1241         return "";
1242     }
1243
1244
1245     /**
1246      * {@inheritDoc}
1247      *
1248      * Necessary to update the contents of the SSL Dialog
1249      *
1250      * TODO move to some common place for all possible untrusted SSL failures
1251      */
1252     @Override
1253     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1254         switch (id) {
1255         case DIALOG_LOGIN_PROGRESS:
1256         case DIALOG_CERT_NOT_SAVED:
1257         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1258             break;
1259         case DIALOG_SSL_VALIDATOR: {
1260             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1261             break;
1262         }
1263         default:
1264             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1265         }
1266     }
1267
1268
1269     /**
1270      * {@inheritDoc}
1271      */
1272     @Override
1273     protected Dialog onCreateDialog(int id) {
1274         Dialog dialog = null;
1275         switch (id) {
1276         case DIALOG_LOGIN_PROGRESS: {
1277             /// simple progress dialog
1278             ProgressDialog working_dialog = new ProgressDialog(this);
1279             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1280             working_dialog.setIndeterminate(true);
1281             working_dialog.setCancelable(true);
1282             working_dialog
1283             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1284                 @Override
1285                 public void onCancel(DialogInterface dialog) {
1286                     /// TODO study if this is enough
1287                     Log_OC.i(TAG, "Login canceled");
1288                     if (mOperationThread != null) {
1289                         mOperationThread.interrupt();
1290                         finish();
1291                     }
1292                 }
1293             });
1294             dialog = working_dialog;
1295             break;
1296         }
1297         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1298             ProgressDialog working_dialog = new ProgressDialog(this);
1299             working_dialog.setMessage(String.format("Getting authorization"));
1300             working_dialog.setIndeterminate(true);
1301             working_dialog.setCancelable(true);
1302             working_dialog
1303             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1304                 @Override
1305                 public void onCancel(DialogInterface dialog) {
1306                     Log_OC.i(TAG, "Login canceled");
1307                     finish();
1308                 }
1309             });
1310             dialog = working_dialog;
1311             break;
1312         }
1313         case DIALOG_SSL_VALIDATOR: {
1314             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1315             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1316             break;
1317         }
1318         case DIALOG_CERT_NOT_SAVED: {
1319             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1320             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1321             builder.setCancelable(false);
1322             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1323                 @Override
1324                 public void onClick(DialogInterface dialog, int which) {
1325                     dialog.dismiss();
1326                 };
1327             });
1328             dialog = builder.create();
1329             break;
1330         }
1331         default:
1332             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1333         }
1334         return dialog;
1335     }
1336
1337
1338     /**
1339      * Starts and activity to open the 'new account' page in the ownCloud web site
1340      *
1341      * @param view      'Account register' button
1342      */
1343     public void onRegisterClick(View view) {
1344         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1345         setResult(RESULT_CANCELED);
1346         startActivity(register);
1347     }
1348
1349
1350     /**
1351      * Updates the content and visibility state of the icon and text associated
1352      * to the last check on the ownCloud server.
1353      */
1354     private void showServerStatus() {
1355         TextView tv = (TextView) findViewById(R.id.server_status_text);
1356
1357         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1358             tv.setVisibility(View.INVISIBLE);
1359
1360         } else {
1361             tv.setText(mServerStatusText);
1362             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1363             tv.setVisibility(View.VISIBLE);
1364         }
1365
1366     }
1367
1368
1369     /**
1370      * Updates the content and visibility state of the icon and text associated
1371      * to the interactions with the OAuth authorization server.
1372      */
1373     private void showAuthStatus() {
1374         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1375             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1376
1377         } else {
1378             mAuthStatusLayout.setText(mAuthStatusText);
1379             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1380             mAuthStatusLayout.setVisibility(View.VISIBLE);
1381         }
1382     }
1383
1384
1385     private void showRefreshButton() {
1386         mRefreshButton.setVisibility(View.VISIBLE);
1387     }
1388
1389     private void hideRefreshButton() {
1390         mRefreshButton.setVisibility(View.GONE);
1391     }
1392
1393     /**
1394      * Called when the refresh button in the input field for ownCloud host is clicked.
1395      *
1396      * Performs a new check on the URL in the input field.
1397      *
1398      * @param view      Refresh 'button'
1399      */
1400     public void onRefreshClick(View view) {
1401         checkOcServer();
1402     }
1403
1404
1405     /**
1406      * Called when the eye icon in the password field is clicked.
1407      *
1408      * Toggles the visibility of the password in the field.
1409      */
1410     public void onViewPasswordClick() {
1411         int selectionStart = mPasswordInput.getSelectionStart();
1412         int selectionEnd = mPasswordInput.getSelectionEnd();
1413         if (isPasswordVisible()) {
1414             hidePassword();
1415         } else {
1416             showPassword();
1417         }
1418         mPasswordInput.setSelection(selectionStart, selectionEnd);
1419     }
1420
1421
1422     /**
1423      * Called when the checkbox for OAuth authorization is clicked.
1424      *
1425      * Hides or shows the input fields for user & password.
1426      *
1427      * @param view      'View password' 'button'
1428      */
1429     public void onCheckClick(View view) {
1430         CheckBox oAuth2Check = (CheckBox)view;
1431         if (oAuth2Check.isChecked()) {
1432             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
1433         } else {
1434             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
1435         }
1436         adaptViewAccordingToAuthenticationMethod();
1437     }
1438
1439
1440     /**
1441      * Changes the visibility of input elements depending on
1442      * the current authorization method.
1443      */
1444     private void adaptViewAccordingToAuthenticationMethod () {
1445         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1446             // OAuth 2 authorization
1447             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1448             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1449             mUsernameInput.setVisibility(View.GONE);
1450             mPasswordInput.setVisibility(View.GONE);
1451
1452         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1453             // SAML-based web Single Sign On
1454             mOAuthAuthEndpointText.setVisibility(View.GONE);
1455             mOAuthTokenEndpointText.setVisibility(View.GONE);
1456             mUsernameInput.setVisibility(View.GONE);
1457             mPasswordInput.setVisibility(View.GONE);
1458         } else {
1459             // basic HTTP authorization
1460             mOAuthAuthEndpointText.setVisibility(View.GONE);
1461             mOAuthTokenEndpointText.setVisibility(View.GONE);
1462             mUsernameInput.setVisibility(View.VISIBLE);
1463             mPasswordInput.setVisibility(View.VISIBLE);
1464         }
1465     }
1466
1467     /**
1468      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1469      */
1470     public void onSavedCertificate() {
1471         checkOcServer();
1472     }
1473
1474     /**
1475      * Called from SslValidatorDialog when a new server certificate could not be saved
1476      * when the user requested it.
1477      */
1478     @Override
1479     public void onFailedSavingCertificate() {
1480         showDialog(DIALOG_CERT_NOT_SAVED);
1481     }
1482
1483
1484     /**
1485      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1486      *
1487      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1488      *  or to throw the server test when the only field on screen is the URL input field.
1489      */
1490     @Override
1491     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1492         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1493             if (mOkButton.isEnabled()) {
1494                 mOkButton.performClick();
1495             }
1496
1497         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1498             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1499                 checkOcServer();
1500             }
1501         }
1502         return false;   // always return false to grant that the software keyboard is hidden anyway
1503     }
1504
1505
1506     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1507
1508         private int fuzz = 75;
1509
1510         /**
1511          * {@inheritDoc}
1512          */
1513         @Override
1514         public boolean onTouch(View view, MotionEvent event) {
1515             Drawable rightDrawable = null;
1516             if (view instanceof TextView) {
1517                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1518                 if (drawables.length > 2) {
1519                     rightDrawable = drawables[2];
1520                 }
1521             }
1522             if (rightDrawable != null) {
1523                 final int x = (int) event.getX();
1524                 final int y = (int) event.getY();
1525                 final Rect bounds = rightDrawable.getBounds();
1526                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1527                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1528
1529                     return onDrawableTouch(event);
1530                 }
1531             }
1532             return false;
1533         }
1534
1535         public abstract boolean onDrawableTouch(final MotionEvent event);
1536     }
1537
1538
1539     public void onSamlDialogSuccess(String sessionCookie){
1540         mAuthToken = sessionCookie;
1541
1542         if (sessionCookie != null && sessionCookie.length() > 0) {
1543             mAuthToken = sessionCookie;
1544             boolean success = true;
1545             if (mAction == ACTION_CREATE) {
1546                 success = createAccount();
1547
1548             } else {
1549                 updateToken();
1550             }
1551             if (success) {
1552                 finish();
1553             }
1554         }
1555
1556
1557     }
1558
1559
1560     @Override
1561     public void onSsoFinished(String sessionCookies) {
1562         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1563
1564         if (sessionCookies != null && sessionCookies.length() > 0) {
1565             Log_OC.d(TAG, "Successful SSO - time to save the account");
1566             onSamlDialogSuccess(sessionCookies);
1567             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1568             if (fd != null && fd instanceof SherlockDialogFragment) {
1569                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1570                 if (d != null && d.isShowing()) {
1571                     d.dismiss();
1572                 }
1573             }
1574
1575         } else {
1576             // TODO - show fail
1577             Log_OC.d(TAG, "SSO failed");
1578         }
1579
1580     }
1581
1582
1583     private void syncAccount(){
1584         /// immediately request for the synchronization of the new account
1585         Bundle bundle = new Bundle();
1586         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1587         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1588     }
1589
1590     @Override
1591     public boolean onTouchEvent(MotionEvent event) {
1592         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
1593                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1594             checkOcServer();
1595         }
1596         return super.onTouchEvent(event);
1597     }
1598 }