src/com/owncloud/android/ui/activity/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 as published by
   7  *   the Free Software Foundation, either version 3 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 package com.owncloud.android.ui.activity;
  21
  22 import java.util.HashMap;
  23 import java.util.Map;
  24
  25 import com.owncloud.android.AccountUtils;
  26 import com.owncloud.android.authenticator.AccountAuthenticator;
  27 import com.owncloud.android.authenticator.oauth2.OAuth2Context;
  28 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  29 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  30 import com.owncloud.android.utils.OwnCloudVersion;
  31 import com.owncloud.android.network.OwnCloudClientUtils;
  32 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  33 import com.owncloud.android.operations.ExistenceCheckOperation;
  34 import com.owncloud.android.operations.OAuth2GetAccessToken;
  35 import com.owncloud.android.operations.OnRemoteOperationListener;
  36 import com.owncloud.android.operations.RemoteOperation;
  37 import com.owncloud.android.operations.RemoteOperationResult;
  38 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  39
  40 import android.accounts.Account;
  41 import android.accounts.AccountAuthenticatorActivity;
  42 import android.accounts.AccountManager;
  43 import android.app.AlertDialog;
  44 import android.app.Dialog;
  45 import android.app.ProgressDialog;
  46 import android.content.ContentResolver;
  47 import android.content.DialogInterface;
  48 import android.content.Intent;
  49 import android.content.SharedPreferences;
  50 import android.net.Uri;
  51 import android.os.Bundle;
  52 import android.os.Handler;
  53 import android.preference.PreferenceManager;
  54 import android.text.InputType;
  55 import android.util.Log;
  56 import android.view.View;
  57 import android.view.View.OnFocusChangeListener;
  58 import android.view.Window;
  59 import android.widget.CheckBox;
  60 import android.widget.EditText;
  61 import android.widget.Button;
  62 import android.widget.ImageView;
  63 import android.widget.TextView;
  64 import com.owncloud.android.R;
  65
  66 import eu.alefzero.webdav.WebdavClient;
  67
  68 /**
  69  * This Activity is used to add an ownCloud account to the App
  70  *
  71  * @author Bartek Przybylski
  72  * @author David A. Velasco
  73  */
  74 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  75         implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener {
  76
  77     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  78
  79     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  80     public static final String EXTRA_USER_NAME = "USER_NAME";
  81     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  82     public static final String EXTRA_ACTION = "ACTION";
  83
  84     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  85     private static final String KEY_OC_VERSION = "OC_VERSION";
  86     private static final String KEY_STATUS_TEXT = "STATUS_TEXT";
  87     private static final String KEY_STATUS_ICON = "STATUS_ICON";
  88     private static final String KEY_STATUS_CORRECT = "STATUS_CORRECT";
  89     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
  90     private static final String KEY_OAUTH2_STATUS_TEXT = "OAUTH2_STATUS_TEXT";
  91     private static final String KEY_OAUTH2_STATUS_ICON = "OAUTH2_STATUS_ICON";
  92
  93     private static final int DIALOG_LOGIN_PROGRESS = 0;
  94     private static final int DIALOG_SSL_VALIDATOR = 1;
  95     private static final int DIALOG_CERT_NOT_SAVED = 2;
  96     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
  97
  98     public static final byte ACTION_CREATE = 0;
  99     public static final byte ACTION_UPDATE_TOKEN = 1;
 100
 101
 102     private String mHostBaseUrl;
 103     private OwnCloudVersion mDiscoveredVersion;
 104
 105     private int mStatusText, mStatusIcon;
 106     private boolean mStatusCorrect, mIsSslConn;
 107     private int mOAuth2StatusText, mOAuth2StatusIcon;
 108
 109     private final Handler mHandler = new Handler();
 110     private Thread mOperationThread;
 111     private OwnCloudServerCheckOperation mOcServerChkOperation;
 112     private ExistenceCheckOperation mAuthCheckOperation;
 113     private RemoteOperationResult mLastSslUntrustedServerResult;
 114
 115     //private Thread mOAuth2GetCodeThread;
 116     //private OAuth2GetAuthorizationToken mOAuth2GetCodeRunnable;
 117     //private TokenReceiver tokenReceiver;
 118     //private JSONObject mCodeResponseJson;
 119     private Uri mNewCapturedUriFromOAuth2Redirection;
 120
 121     private AccountManager mAccountMgr;
 122
 123     private ImageView mRefreshButton;
 124     private ImageView mViewPasswordButton;
 125     private EditText mHostUrlInput;
 126     private EditText mUsernameInput;
 127     private EditText mPasswordInput;
 128     private CheckBox mOAuth2Check;
 129     private String mOAuthAccessToken;
 130     private View mOkButton;
 131     private TextView mAuthStatusLayout;
 132
 133     private TextView mOAuthAuthEndpointText;
 134     private TextView mOAuthTokenEndpointText;
 135
 136
 137     /**
 138      * {@inheritDoc}
 139      *
 140      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 141      */
 142     @Override
 143     protected void onCreate(Bundle savedInstanceState) {
 144         super.onCreate(savedInstanceState);
 145         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 146
 147         /// set view and get references to view elements
 148         setContentView(R.layout.account_setup);
 149         mRefreshButton = (ImageView) findViewById(R.id.refreshButton);
 150         mViewPasswordButton = (ImageView) findViewById(R.id.viewPasswordButton);
 151         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 152         mUsernameInput = (EditText) findViewById(R.id.account_username);
 153         mPasswordInput = (EditText) findViewById(R.id.account_password);
 154         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 155         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 156         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 157         mOkButton = findViewById(R.id.buttonOK);
 158         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 159
 160
 161         /// complete label for 'register account' button
 162         Button b = (Button) findViewById(R.id.account_register);
 163         if (b != null) {
 164             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 165         }
 166
 167         /// bind view elements to listeners
 168         mHostUrlInput.setOnFocusChangeListener(this);
 169         mPasswordInput.setOnFocusChangeListener(this);
 170
 171         /// initialization
 172         mAccountMgr = AccountManager.get(this);
 173         mNewCapturedUriFromOAuth2Redirection = null;    // TODO save?
 174
 175         if (savedInstanceState == null) {
 176             /// connection state and info
 177             mStatusText = mStatusIcon = 0;
 178             mStatusCorrect = false;
 179             mIsSslConn = false;
 180
 181             /// retrieve extras from intent
 182             String tokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 183             boolean oAuthRequired = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(tokenType);
 184             mOAuth2Check.setChecked(oAuthRequired);
 185             changeViewByOAuth2Check(oAuthRequired);
 186
 187             Account account = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 188             if (account != null) {
 189                 String ocVersion = mAccountMgr.getUserData(account, AccountAuthenticator.KEY_OC_VERSION);
 190                 if (ocVersion != null) {
 191                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 192                 }
 193                 mHostBaseUrl = mAccountMgr.getUserData(account, AccountAuthenticator.KEY_OC_BASE_URL);
 194                 mHostUrlInput.setText(mHostBaseUrl);
 195                 String userName = account.name.substring(0, account.name.lastIndexOf('@'));
 196                 mUsernameInput.setText(userName);
 197             }
 198
 199         } else {
 200             loadSavedInstanceState(savedInstanceState);
 201         }
 202
 203         if (getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE) == ACTION_UPDATE_TOKEN) {
 204             /// lock things that should not change
 205             mHostUrlInput.setEnabled(false);
 206             mUsernameInput.setEnabled(false);
 207             mOAuth2Check.setVisibility(View.GONE);
 208             checkOcServer();
 209         }
 210
 211         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 212     }
 213
 214
 215     /**
 216      * Saves relevant state before {@link #onPause()}
 217      *
 218      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 219      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 220      *
 221      * See {@link #loadSavedInstanceState(Bundle)}
 222      */
 223     @Override
 224     protected void onSaveInstanceState(Bundle outState) {
 225         super.onSaveInstanceState(outState);
 226
 227         /// connection state and info
 228         outState.putInt(KEY_STATUS_TEXT, mStatusText);
 229         outState.putInt(KEY_STATUS_ICON, mStatusIcon);
 230         outState.putBoolean(KEY_STATUS_CORRECT, mStatusCorrect);
 231         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 232
 233         /// server data
 234         if (mDiscoveredVersion != null)
 235             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 236         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 237
 238         // Saving the state of oAuth2 components.
 239         outState.putInt(KEY_OAUTH2_STATUS_ICON, mOAuth2StatusIcon);
 240         outState.putInt(KEY_OAUTH2_STATUS_TEXT, mOAuth2StatusText);
 241
 242         /* Leave old OAuth flow
 243         if (codeResponseJson != null){
 244             outState.putString(KEY_OAUTH2_CODE_RESULT, codeResponseJson.toString());
 245         }
 246         */
 247     }
 248
 249
 250     /**
 251      * Loads saved state
 252      *
 253      * See {@link #onSaveInstanceState(Bundle)}.
 254      *
 255      * @param savedInstanceState    Saved state, as received in {@link #onCreate(Bundle)}.
 256      */
 257     private void loadSavedInstanceState(Bundle savedInstanceState) {
 258         /// connection state and info
 259         mStatusCorrect = savedInstanceState.getBoolean(KEY_STATUS_CORRECT);
 260         mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 261         mStatusText = savedInstanceState.getInt(KEY_STATUS_TEXT);
 262         mStatusIcon = savedInstanceState.getInt(KEY_STATUS_ICON);
 263         updateConnStatus();
 264
 265         /// UI settings depending upon connection
 266         mOkButton.setEnabled(mStatusCorrect);   // TODO really necessary?
 267         if (!mStatusCorrect)
 268             mRefreshButton.setVisibility(View.VISIBLE); // seems that setting visibility is necessary
 269         else
 270             mRefreshButton.setVisibility(View.INVISIBLE);
 271
 272         /// server data
 273         String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 274         if (ocVersion != null)
 275             mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 276         mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 277
 278         // state of oAuth2 components
 279         mOAuth2StatusIcon = savedInstanceState.getInt(KEY_OAUTH2_STATUS_ICON);
 280         mOAuth2StatusText = savedInstanceState.getInt(KEY_OAUTH2_STATUS_TEXT);
 281
 282         /* Leave old OAuth flow
 283         // We store a JSon object with all the data returned from oAuth2 server when we get user_code.
 284         // Is better than store variable by variable. We use String object to serialize from/to it.
 285            try {
 286             if (savedInstanceState.containsKey(KEY_OAUTH2_CODE_RESULT)) {
 287                 codeResponseJson = new JSONObject(savedInstanceState.getString(KEY_OAUTH2_CODE_RESULT));
 288             }
 289         } catch (JSONException e) {
 290             Log.e(TAG, "onCreate->JSONException: " + e.toString());
 291         }*/
 292         // END of getting the state of oAuth2 components.
 293
 294     }
 295
 296
 297     /**
 298      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 299      * is caught here.
 300      *
 301      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 302      * AndroidManifest.xml file.
 303      */
 304     @Override
 305     protected void onNewIntent (Intent intent) {
 306         Log.d(TAG, "onNewIntent()");
 307         Uri data = intent.getData();
 308         if (data != null && data.toString().startsWith(OAuth2Context.MY_REDIRECT_URI)) {
 309             mNewCapturedUriFromOAuth2Redirection = data;
 310         }
 311     }
 312
 313
 314     /**
 315      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 316      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 317      */
 318     @Override
 319     protected void onResume() {
 320         super.onResume();
 321         changeViewByOAuth2Check(mOAuth2Check.isChecked());
 322             // the state of mOAuth2Check is automatically recovered between configuration changes, but not before onCreate() finishes
 323
 324         /* LEAVE OLD OAUTH FLOW ;
 325         // (old oauth code) Registering token receiver. We must listening to the service that is pooling to the oAuth server for a token.
 326         if (tokenReceiver == null) {
 327             IntentFilter tokenFilter = new IntentFilter(OAuth2GetTokenService.TOKEN_RECEIVED_MESSAGE);
 328             tokenReceiver = new TokenReceiver();
 329             this.registerReceiver(tokenReceiver,tokenFilter);
 330         } */
 331         // (new oauth code)
 332         if (mNewCapturedUriFromOAuth2Redirection != null) {
 333             getOAuth2AccessTokenFromCapturedRedirection();
 334         }
 335     }
 336
 337
 338     @Override protected void onDestroy() {
 339         super.onDestroy();
 340
 341         /* LEAVE OLD OAUTH FLOW
 342         // We must stop the service thats it's pooling to oAuth2 server for a token.
 343         Intent tokenService = new Intent(this, OAuth2GetTokenService.class);
 344         stopService(tokenService);
 345
 346         // We stop listening the result of the pooling service.
 347         if (tokenReceiver != null) {
 348             unregisterReceiver(tokenReceiver);
 349             tokenReceiver = null;
 350         }*/
 351
 352     }
 353
 354
 355     /**
 356      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 357      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 358      */
 359     private void getOAuth2AccessTokenFromCapturedRedirection() {
 360         /// Parse data from OAuth redirection
 361         Map<String, String> responseValues = new HashMap<String, String>();
 362         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 363         mNewCapturedUriFromOAuth2Redirection = null;
 364         String[] pairs = queryParameters.split("&");
 365         int i = 0;
 366         String key = "";
 367         String value = "";
 368         StringBuilder sb = new StringBuilder();
 369         while (pairs.length > i) {
 370             int j = 0;
 371             String[] part = pairs[i].split("=");
 372             while (part.length > j) {
 373                 String p = part[j];
 374                 if (j == 0) {
 375                     key = p;
 376                     sb.append(key + " = ");
 377                 } else if (j == 1) {
 378                     value = p;
 379                     responseValues.put(key, value);
 380                     sb.append(value + "\n");
 381                 }
 382
 383                 Log.v(TAG, "[" + i + "," + j + "] = " + p);
 384                 j++;
 385             }
 386             i++;
 387         }
 388
 389         /// Updating status widget to OK. -- TODO REMOVE, UNNECESSARY
 390         /*
 391         mStatusIcon = R.drawable.ic_ok;
 392         mStatusText = R.string.auth_connection_established;
 393         updateAuthStatus();
 394         */
 395
 396         /// Showing the dialog with instructions for the user.
 397         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 398
 399         /// GET ACCESS TOKEN to the oAuth server
 400         RemoteOperation operation = new OAuth2GetAccessToken(responseValues);
 401         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth_url_endpoint_access)), getApplicationContext());
 402         operation.execute(client, this, mHandler);
 403     }
 404
 405
 406
 407     /**
 408      * Handles the change of focus on the text inputs for the server URL and the password
 409      */
 410     public void onFocusChange(View view, boolean hasFocus) {
 411         if (view.getId() == R.id.hostUrlInput) {
 412             onUrlInputFocusChanged((TextView) view, hasFocus);
 413
 414         } else if (view.getId() == R.id.account_password) {
 415             onPasswordFocusChanged((TextView) view, hasFocus);
 416         }
 417     }
 418
 419
 420     /**
 421      * Handles changes in focus on the text input for the server URL.
 422      *
 423      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 424      * other field. The operation to check the existence of the server in the entered URL is
 425      * started.
 426      *
 427      * When hasFocus:    user 'comes back' to write again the server URL.
 428      *
 429      * @param hostInput     TextView with the URL input field receiving the change of focus.
 430      * @param hasFocus      'True' if focus is received, 'false' if is lost
 431      */
 432     private void onUrlInputFocusChanged(TextView hostInput, boolean hasFocus) {
 433         if (!hasFocus) {
 434             checkOcServer();
 435
 436         } else {
 437             // avoids that the 'connect' button can be clicked if the test was previously passed
 438             mOkButton.setEnabled(false);
 439         }
 440     }
 441
 442
 443     private void checkOcServer() {
 444         String uri = mHostUrlInput.getText().toString().trim();
 445         if (uri.length() != 0) {
 446             mStatusText = R.string.auth_testing_connection;
 447             mStatusIcon = R.drawable.progress_small;
 448             updateConnStatus();
 449             /** TODO cancel previous connection check if the user tries to ammend a wrong URL
 450             if(mConnChkOperation != null) {
 451                 mConnChkOperation.cancel();
 452             } */
 453             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 454             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this);
 455             mHostBaseUrl = "";
 456             mDiscoveredVersion = null;
 457             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 458         } else {
 459             mRefreshButton.setVisibility(View.INVISIBLE);
 460             mStatusText = 0;
 461             mStatusIcon = 0;
 462             updateConnStatus();
 463         }
 464     }
 465
 466
 467     /**
 468      * Handles changes in focus on the text input for the password (basic authorization).
 469      *
 470      * When (hasFocus), the button to toggle password visibility is shown.
 471      *
 472      * When (!hasFocus), the button is made invisible and the password is hidden.
 473      *
 474      * @param passwordInput    TextView with the password input field receiving the change of focus.
 475      * @param hasFocus          'True' if focus is received, 'false' if is lost
 476      */
 477     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 478         if (hasFocus) {
 479             mViewPasswordButton.setVisibility(View.VISIBLE);
 480         } else {
 481             int input_type = InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD;
 482             passwordInput.setInputType(input_type);
 483             mViewPasswordButton.setVisibility(View.INVISIBLE);
 484         }
 485     }
 486
 487
 488
 489     /**
 490      * Cancels the authenticator activity
 491      *
 492      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 493      *
 494      * This method is bound in the layout/acceoun_setup.xml resource file.
 495      *
 496      * @param view      Cancel button
 497      */
 498     public void onCancelClick(View view) {
 499         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator
 500         finish();
 501     }
 502
 503
 504
 505     /**
 506      * Checks the credentials of the user in the root of the ownCloud server
 507      * before creating a new local account.
 508      *
 509      * For basic authorization, a check of existence of the root folder is
 510      * performed.
 511      *
 512      * For OAuth, starts the flow to get an access token; the credentials test
 513      * is postponed until it is available.
 514      *
 515      * IMPORTANT ENTRY POINT 4
 516      *
 517      * @param view      OK button
 518      */
 519     public void onOkClick(View view) {
 520         // this check should be unnecessary
 521         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 522             mStatusIcon = R.drawable.common_error;
 523             mStatusText = R.string.auth_wtf_reenter_URL;
 524             updateConnStatus();
 525             mOkButton.setEnabled(false);
 526             Log.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 527             return;
 528         }
 529
 530         if (mOAuth2Check.isChecked()) {
 531             startOauthorization();
 532
 533         } else {
 534             checkBasicAuthorization();
 535         }
 536     }
 537
 538
 539     /**
 540      * Tests the credentials entered by the user performing a check of existence on
 541      * the root folder of the ownCloud server.
 542      */
 543     private void checkBasicAuthorization() {
 544         /// get the path to the root folder through WebDAV from the version server
 545         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, false);
 546
 547         /// get basic credentials entered by user
 548         String username = mUsernameInput.getText().toString();
 549         String password = mPasswordInput.getText().toString();
 550
 551         /// be gentle with the user
 552         showDialog(DIALOG_LOGIN_PROGRESS);
 553
 554         /// test credentials accessing the root folder
 555         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 556         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this);
 557         client.setBasicCredentials(username, password);
 558         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 559     }
 560
 561
 562     /**
 563      * Starts the OAuth 'grant type' flow to get an access token, with
 564      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 565      */
 566     private void startOauthorization() {
 567         // be gentle with the user
 568         mStatusIcon = R.drawable.progress_small;
 569         mStatusText = R.string.oauth_login_connection;
 570         updateAuthStatus();
 571
 572         // GET AUTHORIZATION request
 573         /*
 574         mOAuth2GetCodeRunnable = new OAuth2GetAuthorizationToken(, this);
 575         mOAuth2GetCodeRunnable.setListener(this, mHandler);
 576         mOAuth2GetCodeThread = new Thread(mOAuth2GetCodeRunnable);
 577         mOAuth2GetCodeThread.start();
 578         */
 579
 580         //if (mGrantType.equals(OAuth2Context.OAUTH2_AUTH_CODE_GRANT_TYPE)) {
 581         Uri uri = Uri.parse(getString(R.string.oauth_url_endpoint_auth));
 582         Uri.Builder uriBuilder = uri.buildUpon();
 583         uriBuilder.appendQueryParameter(OAuth2Context.CODE_RESPONSE_TYPE, OAuth2Context.OAUTH2_CODE_RESPONSE_TYPE);
 584         uriBuilder.appendQueryParameter(OAuth2Context.CODE_REDIRECT_URI, OAuth2Context.MY_REDIRECT_URI);
 585         uriBuilder.appendQueryParameter(OAuth2Context.CODE_CLIENT_ID, OAuth2Context.OAUTH2_F_CLIENT_ID);
 586         uriBuilder.appendQueryParameter(OAuth2Context.CODE_SCOPE, OAuth2Context.OAUTH2_F_SCOPE);
 587         //uriBuilder.appendQueryParameter(OAuth2Context.CODE_STATE, whateverwewant);
 588         uri = uriBuilder.build();
 589         Log.d(TAG, "Starting browser to view " + uri.toString());
 590         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 591         startActivity(i);
 592         //}
 593     }
 594
 595
 596     /**
 597      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 598      *
 599      * Dispatches the operation flow to the right method.
 600      */
 601     @Override
 602     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 603
 604         if (operation instanceof OwnCloudServerCheckOperation) {
 605             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 606
 607         } else if (operation instanceof OAuth2GetAccessToken) {
 608             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 609
 610         } else if (operation instanceof ExistenceCheckOperation)  {
 611             onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 612
 613         }
 614     }
 615
 616
 617     /**
 618      * Processes the result of the server check performed when the user finishes the enter of the
 619      * server URL.
 620      *
 621      * @param operation     Server check performed.
 622      * @param result        Result of the check.
 623      */
 624     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 625         /// update status icon and text
 626         updateStatusIconAndText(result);
 627         updateConnStatus();
 628
 629         /// save result state
 630         mStatusCorrect = result.isSuccess();
 631         mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 632
 633         /// very special case (TODO: move to a common place for all the remote operations)
 634         if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 635             mLastSslUntrustedServerResult = result;
 636             showDialog(DIALOG_SSL_VALIDATOR);
 637         }
 638
 639         /// update the visibility of the 'retry connection' button
 640         if (!mStatusCorrect)
 641             mRefreshButton.setVisibility(View.VISIBLE);
 642         else
 643             mRefreshButton.setVisibility(View.INVISIBLE);
 644
 645         /// retrieve discovered version and normalize server URL
 646         mDiscoveredVersion = operation.getDiscoveredVersion();
 647         mHostBaseUrl = mHostUrlInput.getText().toString().trim();
 648         if (!mHostBaseUrl.toLowerCase().startsWith("http://") &&
 649             !mHostBaseUrl.toLowerCase().startsWith("https://")) {
 650
 651             if (mIsSslConn) {
 652                 mHostBaseUrl = "https://" + mHostBaseUrl;
 653             } else {
 654                 mHostBaseUrl = "http://" + mHostBaseUrl;
 655             }
 656
 657         }
 658         if (mHostBaseUrl.endsWith("/"))
 659             mHostBaseUrl = mHostBaseUrl.substring(0, mHostBaseUrl.length() - 1);
 660
 661         /// allow or not the user try to access the server
 662         mOkButton.setEnabled(mStatusCorrect);
 663     }
 664
 665
 666     /**
 667      * Chooses the right icon and text to show to the user for the received operation result.
 668      *
 669      * @param result    Result of a remote operation performed in this activity
 670      */
 671     private void updateStatusIconAndText(RemoteOperationResult result) {
 672         mStatusText = mStatusIcon = 0;
 673
 674         switch (result.getCode()) {
 675         case OK_SSL:
 676             mStatusIcon = android.R.drawable.ic_secure;
 677             mStatusText = R.string.auth_secure_connection;
 678             break;
 679
 680         case OK_NO_SSL:
 681         case OK:
 682             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 683                 mStatusText = R.string.auth_connection_established;
 684                 mStatusIcon = R.drawable.ic_ok;
 685             } else {
 686                 mStatusText = R.string.auth_nossl_plain_ok_title;
 687                 mStatusIcon = android.R.drawable.ic_partial_secure;
 688             }
 689             break;
 690
 691         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 692             mStatusIcon = R.drawable.common_error;
 693             mStatusText = R.string.auth_ssl_unverified_server_title;
 694             break;
 695
 696         case BAD_OC_VERSION:
 697             mStatusIcon = R.drawable.common_error;
 698             mStatusText = R.string.auth_bad_oc_version_title;
 699             break;
 700         case WRONG_CONNECTION:
 701             mStatusIcon = R.drawable.common_error;
 702             mStatusText = R.string.auth_wrong_connection_title;
 703             break;
 704         case TIMEOUT:
 705             mStatusIcon = R.drawable.common_error;
 706             mStatusText = R.string.auth_timeout_title;
 707             break;
 708         case INCORRECT_ADDRESS:
 709             mStatusIcon = R.drawable.common_error;
 710             mStatusText = R.string.auth_incorrect_address_title;
 711             break;
 712
 713         case SSL_ERROR:
 714             mStatusIcon = R.drawable.common_error;
 715             mStatusText = R.string.auth_ssl_general_error_title;
 716             break;
 717
 718         case UNAUTHORIZED:
 719             mStatusIcon = R.drawable.common_error;
 720             mStatusText = R.string.auth_unauthorized;
 721             break;
 722         case HOST_NOT_AVAILABLE:
 723             mStatusIcon = R.drawable.common_error;
 724             mStatusText = R.string.auth_unknown_host_title;
 725             break;
 726         case NO_NETWORK_CONNECTION:
 727             mStatusIcon = R.drawable.no_network;
 728             mStatusText = R.string.auth_no_net_conn_title;
 729             break;
 730         case INSTANCE_NOT_CONFIGURED:
 731             mStatusIcon = R.drawable.common_error;
 732             mStatusText = R.string.auth_not_configured_title;
 733             break;
 734         case FILE_NOT_FOUND:
 735             mStatusIcon = R.drawable.common_error;
 736             mStatusText = R.string.auth_incorrect_path_title;
 737             break;
 738         case OAUTH2_ERROR:
 739             mStatusIcon = R.drawable.common_error;
 740             mStatusText = R.string.auth_bad_oauth_token;
 741             break;
 742         case UNHANDLED_HTTP_CODE:
 743         case UNKNOWN_ERROR:
 744             mStatusIcon = R.drawable.common_error;
 745             mStatusText = R.string.auth_unknown_error_title;
 746             break;
 747
 748         default:
 749             break;
 750         }
 751     }
 752
 753
 754     /**
 755      * Processes the result of the request for and access token send
 756      * to an OAuth authorization server.
 757      *
 758      * @param operation     Operation performed requesting the access token.
 759      * @param result        Result of the operation.
 760      */
 761     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
 762         try {
 763             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 764         } catch (IllegalArgumentException e) {
 765             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 766         }
 767
 768         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, true);
 769         if (result.isSuccess() && webdav_path != null) {
 770             /// be gentle with the user
 771             showDialog(DIALOG_LOGIN_PROGRESS);
 772
 773             /// time to test the retrieved access token on the ownCloud server
 774             mOAuthAccessToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Context.KEY_ACCESS_TOKEN);
 775             Log.d(TAG, "Got ACCESS TOKEN: " + mOAuthAccessToken);
 776             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
 777             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this);
 778             client.setBearerCredentials(mOAuthAccessToken);
 779             mAuthCheckOperation.execute(client, this, mHandler);
 780
 781         } else {
 782             if (webdav_path != null) {
 783                 mOAuthAuthEndpointText.setError("A valid authorization could not be obtained");
 784             } else {
 785                 mOAuthAuthEndpointText.setError(getString(R.string.auth_bad_oc_version_title)); // should never happen
 786             }
 787         }
 788     }
 789
 790
 791     /**
 792      * Processes the result of the access check performed to try the user credentials.
 793      *
 794      * Creates a new account through the AccountManager.
 795      *
 796      * @param operation     Access check performed.
 797      * @param result        Result of the operation.
 798      */
 799     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
 800         try {
 801             dismissDialog(DIALOG_LOGIN_PROGRESS);
 802         } catch (IllegalArgumentException e) {
 803             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 804         }
 805
 806         boolean isOAuth = mOAuth2Check.isChecked();
 807
 808         if (result.isSuccess()) {
 809             Log.d(TAG, "Successful access - time to save the account");
 810
 811             /// create and save new ownCloud account
 812             Uri uri = Uri.parse(mHostBaseUrl);
 813             String username = isOAuth ?
 814                                 "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong() :
 815                                  mUsernameInput.getText().toString().trim();
 816                              // TODO a better way to set an account name
 817             String accountName = username + "@" + uri.getHost();
 818             if (uri.getPort() >= 0) {
 819                 accountName += ":" + uri.getPort();
 820             }
 821             Account account = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
 822             AccountManager accManager = AccountManager.get(this);
 823             if (isOAuth) {
 824                 accManager.addAccountExplicitly(account, "", null);  // with our implementation, the password is never input in the app
 825             } else {
 826                 accManager.addAccountExplicitly(account, mPasswordInput.getText().toString(), null);
 827             }
 828
 829             /// add the new account as default in preferences, if there is none already
 830             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
 831             if (defaultAccount == null) {
 832                 SharedPreferences.Editor editor = PreferenceManager
 833                         .getDefaultSharedPreferences(this).edit();
 834                 editor.putString("select_oc_account", accountName);
 835                 editor.commit();
 836             }
 837
 838
 839             /// prepare result to return to the Authenticator
 840             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
 841             final Intent intent = new Intent();    // TODO check if the intent can be retrieved from getIntent(), passed from AccountAuthenticator
 842             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
 843             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    account.name);
 844             if (!isOAuth)
 845                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); // TODO check this; not sure it's right; maybe
 846             intent.putExtra(AccountManager.KEY_USERDATA,        username);
 847             if (isOAuth) {
 848                 accManager.setAuthToken(account, AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN, mOAuthAccessToken);
 849             }
 850             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
 851             accManager.setUserData(account, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
 852             accManager.setUserData(account, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
 853             if (isOAuth)
 854                 accManager.setUserData(account, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");  // TODO this flag should be unnecessary
 855
 856             setAccountAuthenticatorResult(intent.getExtras());
 857             setResult(RESULT_OK, intent);
 858
 859             /// immediately request for the synchronization of the new account
 860             Bundle bundle = new Bundle();
 861             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
 862             ContentResolver.requestSync(account, AccountAuthenticator.AUTHORITY, bundle);
 863
 864             finish();
 865
 866         } else {
 867             /*
 868             if (!isOAuth) {
 869                 mUsernameInput.setError(result.getLogMessage() + "        ");
 870                                                     // the extra spaces are a workaround for an ugly bug:
 871                                                     // 1. insert wrong credentials and connect
 872                                                     // 2. put the focus on the user name field with using hardware controls (don't touch the screen); the error is shown UNDER the field
 873                                                     // 3. touch the user name field; the software keyboard appears; the error popup is moved OVER the field and SHRINKED in width, losing the last word
 874                                                     // Seen, at least, in Android 2.x devices
 875
 876             } else {
 877                 mOAuthAuthEndpointText.setError(result.getLogMessage() + "        ");
 878             }*/
 879             updateStatusIconAndText(result);
 880             updateAuthStatus();
 881             Log.d(TAG, "Access failed: " + result.getLogMessage());
 882         }
 883     }
 884
 885
 886
 887     /**
 888      * {@inheritDoc}
 889      *
 890      * Necessary to update the contents of the SSL Dialog
 891      *
 892      * TODO move to some common place for all possible untrusted SSL failures
 893      */
 894     @Override
 895     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
 896         switch (id) {
 897         case DIALOG_LOGIN_PROGRESS:
 898         case DIALOG_CERT_NOT_SAVED:
 899         case DIALOG_OAUTH2_LOGIN_PROGRESS:
 900             break;
 901         case DIALOG_SSL_VALIDATOR: {
 902             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
 903             break;
 904         }
 905         default:
 906             Log.e(TAG, "Incorrect dialog called with id = " + id);
 907         }
 908     }
 909
 910
 911     /**
 912      * {@inheritDoc}
 913      */
 914     @Override
 915     protected Dialog onCreateDialog(int id) {
 916         Dialog dialog = null;
 917         switch (id) {
 918         case DIALOG_LOGIN_PROGRESS: {
 919             /// simple progress dialog
 920             ProgressDialog working_dialog = new ProgressDialog(this);
 921             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
 922             working_dialog.setIndeterminate(true);
 923             working_dialog.setCancelable(true);
 924             working_dialog
 925                     .setOnCancelListener(new DialogInterface.OnCancelListener() {
 926                         @Override
 927                         public void onCancel(DialogInterface dialog) {
 928                             /// TODO study if this is enough
 929                             Log.i(TAG, "Login canceled");
 930                             if (mOperationThread != null) {
 931                                 mOperationThread.interrupt();
 932                                 finish();
 933                             }
 934                         }
 935                     });
 936             dialog = working_dialog;
 937             break;
 938         }
 939         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
 940             /// oAuth2 dialog. We show here to the user the URL and user_code that the user must validate in a web browser. - OLD!
 941             // TODO optimize this dialog
 942             ProgressDialog working_dialog = new ProgressDialog(this);
 943             /* Leave the old OAuth flow
 944             try {
 945                 if (mCodeResponseJson != null && mCodeResponseJson.has(OAuth2GetCodeRunnable.CODE_VERIFICATION_URL)) {
 946                     working_dialog.setMessage(String.format(getString(R.string.oauth_code_validation_message),
 947                             mCodeResponseJson.getString(OAuth2GetCodeRunnable.CODE_VERIFICATION_URL),
 948                             mCodeResponseJson.getString(OAuth2GetCodeRunnable.CODE_USER_CODE)));
 949                 } else {*/
 950                     working_dialog.setMessage(String.format("Getting authorization"));
 951                 /*}
 952             } catch (JSONException e) {
 953                 Log.e(TAG, "onCreateDialog->JSONException: " + e.toString());
 954             }*/
 955             working_dialog.setIndeterminate(true);
 956             working_dialog.setCancelable(true);
 957             working_dialog
 958             .setOnCancelListener(new DialogInterface.OnCancelListener() {
 959                 @Override
 960                 public void onCancel(DialogInterface dialog) {
 961                     Log.i(TAG, "Login canceled");
 962                     /*if (mOAuth2GetCodeThread != null) {
 963                         mOAuth2GetCodeThread.interrupt();
 964                         finish();
 965                     } */
 966                     /*if (tokenReceiver != null) {
 967                         unregisterReceiver(tokenReceiver);
 968                         tokenReceiver = null;
 969                         finish();
 970                     }*/
 971                     finish();
 972                 }
 973             });
 974             dialog = working_dialog;
 975             break;
 976         }
 977         case DIALOG_SSL_VALIDATOR: {
 978             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
 979             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
 980             break;
 981         }
 982         case DIALOG_CERT_NOT_SAVED: {
 983             AlertDialog.Builder builder = new AlertDialog.Builder(this);
 984             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
 985             builder.setCancelable(false);
 986             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
 987                     @Override
 988                     public void onClick(DialogInterface dialog, int which) {
 989                         dialog.dismiss();
 990                     };
 991                 });
 992             dialog = builder.create();
 993             break;
 994         }
 995         default:
 996             Log.e(TAG, "Incorrect dialog called with id = " + id);
 997         }
 998         return dialog;
 999     }
1000
1001
1002     /**
1003      * Starts and activity to open the 'new account' page in the ownCloud web site
1004      *
1005      * @param view      'Account register' button
1006      */
1007     public void onRegisterClick(View view) {
1008         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1009         setResult(RESULT_CANCELED);
1010         startActivity(register);
1011     }
1012
1013
1014     /**
1015      * Updates the content and visibility state of the icon and text associated
1016      * to the last check on the ownCloud server.
1017      */
1018     private void updateConnStatus() {
1019         ImageView iv = (ImageView) findViewById(R.id.action_indicator);
1020         TextView tv = (TextView) findViewById(R.id.status_text);
1021
1022         if (mStatusIcon == 0 && mStatusText == 0) {
1023             iv.setVisibility(View.INVISIBLE);
1024             tv.setVisibility(View.INVISIBLE);
1025         } else {
1026             iv.setImageResource(mStatusIcon);
1027             tv.setText(mStatusText);
1028             iv.setVisibility(View.VISIBLE);
1029             tv.setVisibility(View.VISIBLE);
1030         }
1031     }
1032
1033
1034     /**
1035      * Updates the content and visibility state of the icon and text associated
1036      * to the interactions with the OAuth authorization server.
1037      */
1038     private void updateAuthStatus() {
1039         /*ImageView iv = (ImageView) findViewById(R.id.auth_status_icon);
1040         TextView tv = (TextView) findViewById(R.id.auth_status_text);*/
1041
1042         if (mStatusIcon == 0 && mStatusText == 0) {
1043             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1044             /*iv.setVisibility(View.INVISIBLE);
1045             tv.setVisibility(View.INVISIBLE);*/
1046         } else {
1047             mAuthStatusLayout.setText(mStatusText);
1048             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mStatusIcon, 0, 0, 0);
1049             /*iv.setImageResource(mStatusIcon);
1050             tv.setText(mStatusText);
1051             /*iv.setVisibility(View.VISIBLE);
1052             tv.setVisibility(View.VISIBLE);^*/
1053             mAuthStatusLayout.setVisibility(View.VISIBLE);
1054         }
1055     }
1056
1057
1058     /**
1059      * Called when the refresh button in the input field for ownCloud host is clicked.
1060      *
1061      * Performs a new check on the URL in the input field.
1062      *
1063      * @param view      Refresh 'button'
1064      */
1065     public void onRefreshClick(View view) {
1066         onFocusChange(mRefreshButton, false);
1067     }
1068
1069
1070     /**
1071      * Called when the eye icon in the password field is clicked.
1072      *
1073      * Toggles the visibility of the password in the field.
1074      *
1075      * @param view      'View password' 'button'
1076      */
1077     public void onViewPasswordClick(View view) {
1078         int selectionStart = mPasswordInput.getSelectionStart();
1079         int selectionEnd = mPasswordInput.getSelectionEnd();
1080         int input_type = mPasswordInput.getInputType();
1081         if ((input_type & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) {
1082             input_type = InputType.TYPE_CLASS_TEXT
1083                     | InputType.TYPE_TEXT_VARIATION_PASSWORD;
1084         } else {
1085             input_type = InputType.TYPE_CLASS_TEXT
1086                     | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD;
1087         }
1088         mPasswordInput.setInputType(input_type);
1089         mPasswordInput.setSelection(selectionStart, selectionEnd);
1090     }
1091
1092
1093     /**
1094      * Called when the checkbox for OAuth authorization is clicked.
1095      *
1096      * Hides or shows the input fields for user & password.
1097      *
1098      * @param view      'View password' 'button'
1099      */
1100     public void onCheckClick(View view) {
1101         CheckBox oAuth2Check = (CheckBox)view;
1102         changeViewByOAuth2Check(oAuth2Check.isChecked());
1103
1104     }
1105
1106     /**
1107      * Changes the visibility of input elements depending upon the kind of authorization
1108      * chosen by the user: basic or OAuth
1109      *
1110      * @param checked       'True' when OAuth is selected.
1111      */
1112     public void changeViewByOAuth2Check(Boolean checked) {
1113
1114         if (checked) {
1115             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1116             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1117             mUsernameInput.setVisibility(View.GONE);
1118             mPasswordInput.setVisibility(View.GONE);
1119             mViewPasswordButton.setVisibility(View.GONE);
1120         } else {
1121             mOAuthAuthEndpointText.setVisibility(View.GONE);
1122             mOAuthTokenEndpointText.setVisibility(View.GONE);
1123             mUsernameInput.setVisibility(View.VISIBLE);
1124             mPasswordInput.setVisibility(View.VISIBLE);
1125             mViewPasswordButton.setVisibility(View.INVISIBLE);
1126         }
1127
1128     }
1129
1130     /* Leave the old OAuth flow
1131     // Results from the first call to oAuth2 server : getting the user_code and verification_url.
1132     @Override
1133     public void onOAuth2GetCodeResult(ResultOAuthType type, JSONObject responseJson) {
1134         if ((type == ResultOAuthType.OK_SSL)||(type == ResultOAuthType.OK_NO_SSL)) {
1135             mCodeResponseJson = responseJson;
1136             if (mCodeResponseJson != null) {
1137                 getOAuth2AccessTokenFromJsonResponse();
1138             }  // else - nothing to do here - wait for callback !!!
1139
1140         } else if (type == ResultOAuthType.HOST_NOT_AVAILABLE) {
1141             updateOAuth2IconAndText(R.drawable.common_error, R.string.oauth_connection_url_unavailable);
1142         }
1143     }
1144
1145     // If the results of getting the user_code and verification_url are OK, we get the received data and we start
1146     // the polling service to oAuth2 server to get a valid token.
1147     private void getOAuth2AccessTokenFromJsonResponse() {
1148         String deviceCode = null;
1149         String verificationUrl = null;
1150         String userCode = null;
1151         int expiresIn = -1;
1152         int interval = -1;
1153
1154         Log.d(TAG, "ResponseOAuth2->" + mCodeResponseJson.toString());
1155
1156         try {
1157             // We get data that we must show to the user or we will use internally.
1158             verificationUrl = mCodeResponseJson.getString(OAuth2GetAuthorizationToken.CODE_VERIFICATION_URL);
1159             userCode = mCodeResponseJson.getString(OAuth2GetAuthorizationToken.CODE_USER_CODE);
1160             expiresIn = mCodeResponseJson.getInt(OAuth2GetAuthorizationToken.CODE_EXPIRES_IN);
1161
1162             // And we get data that we must use to get a token.
1163             deviceCode = mCodeResponseJson.getString(OAuth2GetAuthorizationToken.CODE_DEVICE_CODE);
1164             interval = mCodeResponseJson.getInt(OAuth2GetAuthorizationToken.CODE_INTERVAL);
1165
1166         } catch (JSONException e) {
1167             Log.e(TAG, "Exception accesing data in Json object" + e.toString());
1168         }
1169
1170         // Updating status widget to OK.
1171         updateOAuth2IconAndText(R.drawable.ic_ok, R.string.auth_connection_established);
1172
1173         // Showing the dialog with instructions for the user.
1174         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1175
1176         // Loggin all the data.
1177         Log.d(TAG, "verificationUrl->" + verificationUrl);
1178         Log.d(TAG, "userCode->" + userCode);
1179         Log.d(TAG, "deviceCode->" + deviceCode);
1180         Log.d(TAG, "expiresIn->" + expiresIn);
1181         Log.d(TAG, "interval->" + interval);
1182
1183         // Starting the pooling service.
1184         try {
1185             Intent tokenService = new Intent(this, OAuth2GetTokenService.class);
1186             tokenService.putExtra(OAuth2GetTokenService.TOKEN_URI, OAuth2Context.OAUTH2_G_DEVICE_GETTOKEN_URL);
1187             tokenService.putExtra(OAuth2GetTokenService.TOKEN_DEVICE_CODE, deviceCode);
1188             tokenService.putExtra(OAuth2GetTokenService.TOKEN_INTERVAL, interval);
1189
1190             startService(tokenService);
1191         }
1192         catch (Exception e) {
1193             Log.e(TAG, "tokenService creation problem :", e);
1194         }
1195
1196     }
1197     */
1198
1199     /* Leave the old OAuth flow
1200     // We get data from the oAuth2 token service with this broadcast receiver.
1201     private class TokenReceiver extends BroadcastReceiver {
1202         /**
1203          * The token is received.
1204          *  @author
1205          * {@link BroadcastReceiver} to enable oAuth2 token receiving.
1206          *-/
1207         @Override
1208         public void onReceive(Context context, Intent intent) {
1209             @SuppressWarnings("unchecked")
1210             HashMap<String, String> tokenResponse = (HashMap<String, String>)intent.getExtras().get(OAuth2GetTokenService.TOKEN_RECEIVED_DATA);
1211             Log.d(TAG, "TokenReceiver->" + tokenResponse.get(OAuth2GetTokenService.TOKEN_ACCESS_TOKEN));
1212             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1213
1214         }
1215     }
1216     */
1217
1218
1219     /**
1220      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1221      */
1222     public void onSavedCertificate() {
1223         mOperationThread = mOcServerChkOperation.retry(this, mHandler);
1224     }
1225
1226     /**
1227      * Called from SslValidatorDialog when a new server certificate could not be saved
1228      * when the user requested it.
1229      */
1230     @Override
1231     public void onFailedSavingCertificate() {
1232         showDialog(DIALOG_CERT_NOT_SAVED);
1233     }
1234
1235 }