src/com/owncloud/android/authentication/AuthenticatorActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import com.owncloud.android.Log_OC;
  22 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  23 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  24 import com.owncloud.android.utils.OwnCloudVersion;
  25 import com.owncloud.android.network.OwnCloudClientUtils;
  26 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  27 import com.owncloud.android.operations.ExistenceCheckOperation;
  28 import com.owncloud.android.operations.OAuth2GetAccessToken;
  29 import com.owncloud.android.operations.OnRemoteOperationListener;
  30 import com.owncloud.android.operations.RemoteOperation;
  31 import com.owncloud.android.operations.RemoteOperationResult;
  32 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  33
  34 import android.accounts.Account;
  35 import android.accounts.AccountAuthenticatorActivity;
  36 import android.accounts.AccountManager;
  37 import android.app.AlertDialog;
  38 import android.app.Dialog;
  39 import android.app.ProgressDialog;
  40 import android.content.ContentResolver;
  41 import android.content.DialogInterface;
  42 import android.content.Intent;
  43 import android.content.SharedPreferences;
  44 import android.graphics.Rect;
  45 import android.graphics.drawable.Drawable;
  46 import android.net.Uri;
  47 import android.os.Bundle;
  48 import android.os.Handler;
  49 import android.preference.PreferenceManager;
  50 import android.text.Editable;
  51 import android.text.InputType;
  52 import android.text.TextWatcher;
  53 import android.view.KeyEvent;
  54 import android.view.MotionEvent;
  55 import android.view.View;
  56 import android.view.View.OnFocusChangeListener;
  57 import android.view.View.OnTouchListener;
  58 import android.view.Window;
  59 import android.view.inputmethod.EditorInfo;
  60 import android.widget.CheckBox;
  61 import android.widget.EditText;
  62 import android.widget.Button;
  63 import android.widget.TextView;
  64 import android.widget.Toast;
  65 import android.widget.TextView.OnEditorActionListener;
  66
  67 import com.owncloud.android.R;
  68
  69 import eu.alefzero.webdav.WebdavClient;
  70
  71 /**
  72  * This Activity is used to add an ownCloud account to the App
  73  *
  74  * @author Bartek Przybylski
  75  * @author David A. Velasco
  76  */
  77 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  78 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener {
  79
  80     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  81
  82     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  83     public static final String EXTRA_USER_NAME = "USER_NAME";
  84     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  85     public static final String EXTRA_ACTION = "ACTION";
  86     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  87
  88     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  89     private static final String KEY_OC_VERSION = "OC_VERSION";
  90     private static final String KEY_ACCOUNT = "ACCOUNT";
  91     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  92     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  93     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  94     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  95     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
  96     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
  97     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
  98     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
  99     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 100     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 101
 102     private static final String OAUTH_MODE_ON = "on";
 103     private static final String OAUTH_MODE_OFF = "off";
 104     private static final String OAUTH_MODE_OPTIONAL = "optional";
 105
 106     private static final int DIALOG_LOGIN_PROGRESS = 0;
 107     private static final int DIALOG_SSL_VALIDATOR = 1;
 108     private static final int DIALOG_CERT_NOT_SAVED = 2;
 109     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 110
 111     public static final byte ACTION_CREATE = 0;
 112     public static final byte ACTION_UPDATE_TOKEN = 1;
 113
 114     private String mHostBaseUrl;
 115     private OwnCloudVersion mDiscoveredVersion;
 116
 117     private int mServerStatusText, mServerStatusIcon;
 118     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 119     private int mAuthStatusText, mAuthStatusIcon;
 120
 121     private final Handler mHandler = new Handler();
 122     private Thread mOperationThread;
 123     private OwnCloudServerCheckOperation mOcServerChkOperation;
 124     private ExistenceCheckOperation mAuthCheckOperation;
 125     private RemoteOperationResult mLastSslUntrustedServerResult;
 126
 127     private Uri mNewCapturedUriFromOAuth2Redirection;
 128
 129     private AccountManager mAccountMgr;
 130     private boolean mJustCreated;
 131     private byte mAction;
 132     private Account mAccount;
 133
 134     private EditText mHostUrlInput;
 135     private View mRefreshButton;
 136     private EditText mUsernameInput;
 137     private EditText mPasswordInput;
 138     private CheckBox mOAuth2Check;
 139     private String mOAuthAccessToken;
 140     private View mOkButton;
 141     private TextView mAuthStatusLayout;
 142
 143     private TextView mOAuthAuthEndpointText;
 144     private TextView mOAuthTokenEndpointText;
 145
 146     private boolean mRefreshButtonEnabled;
 147
 148     private boolean mHostUrlInputEnabled;
 149
 150
 151     /**
 152      * {@inheritDoc}
 153      *
 154      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 155      */
 156     @Override
 157     protected void onCreate(Bundle savedInstanceState) {
 158         super.onCreate(savedInstanceState);
 159         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 160
 161         /// set view and get references to view elements
 162         setContentView(R.layout.account_setup);
 163         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 164         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 165         mUsernameInput = (EditText) findViewById(R.id.account_username);
 166         mPasswordInput = (EditText) findViewById(R.id.account_password);
 167         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 168         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 169         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 170         mOkButton = findViewById(R.id.buttonOK);
 171         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 172
 173         /// set Host Url Input Enabled
 174         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 175
 176
 177         /// complete label for 'register account' button
 178         Button b = (Button) findViewById(R.id.account_register);
 179         if (b != null) {
 180             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 181         }
 182
 183         /// initialization
 184         mAccountMgr = AccountManager.get(this);
 185         mNewCapturedUriFromOAuth2Redirection = null;
 186         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 187         mAccount = null;
 188         mHostBaseUrl = "";
 189         boolean refreshButtonEnabled = false;
 190
 191         // URL input configuration applied
 192         if (!mHostUrlInputEnabled)
 193         {
 194             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 195             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 196
 197         } else {
 198             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 199         }
 200
 201         if (savedInstanceState == null) {
 202             /// connection state and info
 203             mServerStatusText = mServerStatusIcon = 0;
 204             mServerIsValid = false;
 205             mServerIsChecked = false;
 206             mIsSslConn = false;
 207             mAuthStatusText = mAuthStatusIcon = 0;
 208
 209             /// retrieve extras from intent
 210             String tokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 211             boolean oAuthRequired = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(tokenType) || OAUTH_MODE_ON.equals(getString(R.string.oauth2_mode));
 212
 213             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 214             if (mAccount != null) {
 215                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 216                 if (ocVersion != null) {
 217                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 218                 }
 219                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 220                 mHostUrlInput.setText(mHostBaseUrl);
 221                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 222                 mUsernameInput.setText(userName);
 223                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 224             }
 225             mOAuth2Check.setChecked(oAuthRequired);
 226             changeViewByOAuth2Check(oAuthRequired);
 227             mJustCreated = true;
 228
 229             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 230                 checkOcServer();
 231             }
 232
 233         } else {
 234             /// connection state and info
 235             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 236             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 237             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 238             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 239             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 240             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 241             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 242             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 243                 showPassword();
 244             }
 245
 246             /// server data
 247             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 248             if (ocVersion != null) {
 249                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 250             }
 251             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 252
 253             // account data, if updating
 254             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 255
 256             // check if server check was interrupted by a configuration change
 257             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 258                 checkOcServer();
 259             }
 260
 261             // refresh button enabled
 262             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 263
 264
 265         }
 266
 267         showServerStatus();
 268         showAuthStatus();
 269
 270         if (mAction == ACTION_UPDATE_TOKEN) {
 271             /// lock things that should not change
 272             mHostUrlInput.setEnabled(false);
 273             mHostUrlInput.setFocusable(false);
 274             mUsernameInput.setEnabled(false);
 275             mUsernameInput.setFocusable(false);
 276             mOAuth2Check.setVisibility(View.GONE);
 277         }
 278
 279         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 280         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 281         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 282
 283         if (!OAUTH_MODE_OPTIONAL.equals(getString(R.string.oauth2_mode))) {
 284             mOAuth2Check.setVisibility(View.GONE);
 285         }
 286
 287         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 288
 289         /// bind view elements to listeners
 290         mHostUrlInput.setOnFocusChangeListener(this);
 291         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 292
 293             @Override
 294             public void afterTextChanged(Editable s) {
 295                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 296                     mOkButton.setEnabled(false);
 297                 }
 298             }
 299
 300             @Override
 301             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 302
 303             @Override
 304             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 305
 306         });
 307         mPasswordInput.setOnFocusChangeListener(this);
 308         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 309         mPasswordInput.setOnEditorActionListener(this);
 310         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 311             @Override
 312             public boolean onDrawableTouch(final MotionEvent event) {
 313                 if (event.getAction() == MotionEvent.ACTION_UP) {
 314                     AuthenticatorActivity.this.onViewPasswordClick();
 315                 }
 316                 return true;
 317             }
 318         });
 319     }
 320
 321     /**
 322      * Saves relevant state before {@link #onPause()}
 323      *
 324      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 325      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 326      *
 327      * See {@link #loadSavedInstanceState(Bundle)}
 328      */
 329     @Override
 330     protected void onSaveInstanceState(Bundle outState) {
 331         super.onSaveInstanceState(outState);
 332
 333         /// connection state and info
 334         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 335         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 336         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 337         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 338         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 339         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 340         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 341         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 342         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 343
 344         /// server data
 345         if (mDiscoveredVersion != null) {
 346             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 347         }
 348         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 349
 350         /// account data, if updating
 351         if (mAccount != null) {
 352             outState.putParcelable(KEY_ACCOUNT, mAccount);
 353         }
 354
 355         // refresh button enabled
 356         //outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, mRefreshButtonEnabled);
 357         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 358
 359     }
 360
 361
 362     /**
 363      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 364      * is caught here.
 365      *
 366      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 367      * AndroidManifest.xml file.
 368      */
 369     @Override
 370     protected void onNewIntent (Intent intent) {
 371         Log_OC.d(TAG, "onNewIntent()");
 372         Uri data = intent.getData();
 373         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 374             mNewCapturedUriFromOAuth2Redirection = data;
 375         }
 376     }
 377
 378
 379     /**
 380      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 381      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 382      */
 383     @Override
 384     protected void onResume() {
 385         super.onResume();
 386         // the state of mOAuth2Check is automatically recovered between configuration changes, but not before onCreate() finishes; so keep the next lines here
 387         changeViewByOAuth2Check(mOAuth2Check.isChecked());
 388         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 389             if (mOAuth2Check.isChecked())
 390                 Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 391             else
 392                 Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 393         }
 394
 395         if (mNewCapturedUriFromOAuth2Redirection != null) {
 396             getOAuth2AccessTokenFromCapturedRedirection();
 397         }
 398
 399         mJustCreated = false;
 400     }
 401
 402
 403     /**
 404      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 405      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 406      */
 407     private void getOAuth2AccessTokenFromCapturedRedirection() {
 408         /// Parse data from OAuth redirection
 409         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 410         mNewCapturedUriFromOAuth2Redirection = null;
 411
 412         /// Showing the dialog with instructions for the user.
 413         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 414
 415         /// GET ACCESS TOKEN to the oAuth server
 416         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 417                 getString(R.string.oauth2_redirect_uri),
 418                 getString(R.string.oauth2_grant_type),
 419                 queryParameters);
 420         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 421         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext());
 422         operation.execute(client, this, mHandler);
 423     }
 424
 425
 426
 427     /**
 428      * Handles the change of focus on the text inputs for the server URL and the password
 429      */
 430     public void onFocusChange(View view, boolean hasFocus) {
 431         if (view.getId() == R.id.hostUrlInput) {
 432             if (!hasFocus) {
 433                 onUrlInputFocusLost((TextView) view);
 434             }
 435             else {
 436                 hideRefreshButton();
 437             }
 438
 439         } else if (view.getId() == R.id.account_password) {
 440             onPasswordFocusChanged((TextView) view, hasFocus);
 441         }
 442     }
 443
 444
 445     /**
 446      * Handles changes in focus on the text input for the server URL.
 447      *
 448      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 449      * other field. The operation to check the existence of the server in the entered URL is
 450      * started.
 451      *
 452      * When hasFocus:    user 'comes back' to write again the server URL.
 453      *
 454      * @param hostInput     TextView with the URL input field receiving the change of focus.
 455      */
 456     private void onUrlInputFocusLost(TextView hostInput) {
 457         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 458             checkOcServer();
 459         } else {
 460             mOkButton.setEnabled(mServerIsValid);
 461             if (!mServerIsValid) {
 462                 showRefreshButton();
 463             }
 464         }
 465     }
 466
 467
 468     private void checkOcServer() {
 469         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 470
 471         if (!mHostUrlInputEnabled){
 472             uri = getString(R.string.server_url);
 473         }
 474
 475         mServerIsValid = false;
 476         mServerIsChecked = false;
 477         mOkButton.setEnabled(false);
 478         mDiscoveredVersion = null;
 479         hideRefreshButton();
 480         if (uri.length() != 0) {
 481             mServerStatusText = R.string.auth_testing_connection;
 482             mServerStatusIcon = R.drawable.progress_small;
 483             showServerStatus();
 484             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 485             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this);
 486             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 487         } else {
 488             mServerStatusText = 0;
 489             mServerStatusIcon = 0;
 490             showServerStatus();
 491         }
 492     }
 493
 494
 495     /**
 496      * Handles changes in focus on the text input for the password (basic authorization).
 497      *
 498      * When (hasFocus), the button to toggle password visibility is shown.
 499      *
 500      * When (!hasFocus), the button is made invisible and the password is hidden.
 501      *
 502      * @param passwordInput    TextView with the password input field receiving the change of focus.
 503      * @param hasFocus          'True' if focus is received, 'false' if is lost
 504      */
 505     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 506         if (hasFocus) {
 507             showViewPasswordButton();
 508         } else {
 509             hidePassword();
 510             hidePasswordButton();
 511         }
 512     }
 513
 514
 515     private void showViewPasswordButton() {
 516         //int drawable = android.R.drawable.ic_menu_view;
 517         int drawable = R.drawable.ic_view;
 518         if (isPasswordVisible()) {
 519             //drawable = android.R.drawable.ic_secure;
 520             drawable = R.drawable.ic_hide;
 521         }
 522         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 523     }
 524
 525     private boolean isPasswordVisible() {
 526         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 527     }
 528
 529     private void hidePasswordButton() {
 530         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 531     }
 532
 533     private void showPassword() {
 534         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 535         showViewPasswordButton();
 536     }
 537
 538     private void hidePassword() {
 539         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 540         showViewPasswordButton();
 541     }
 542
 543
 544     /**
 545      * Cancels the authenticator activity
 546      *
 547      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 548      *
 549      * This method is bound in the layout/acceoun_setup.xml resource file.
 550      *
 551      * @param view      Cancel button
 552      */
 553     public void onCancelClick(View view) {
 554         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 555         finish();
 556     }
 557
 558
 559
 560     /**
 561      * Checks the credentials of the user in the root of the ownCloud server
 562      * before creating a new local account.
 563      *
 564      * For basic authorization, a check of existence of the root folder is
 565      * performed.
 566      *
 567      * For OAuth, starts the flow to get an access token; the credentials test
 568      * is postponed until it is available.
 569      *
 570      * IMPORTANT ENTRY POINT 4
 571      *
 572      * @param view      OK button
 573      */
 574     public void onOkClick(View view) {
 575         // this check should be unnecessary
 576         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 577             mServerStatusIcon = R.drawable.common_error;
 578             mServerStatusText = R.string.auth_wtf_reenter_URL;
 579             showServerStatus();
 580             mOkButton.setEnabled(false);
 581             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 582             return;
 583         }
 584
 585         if (mOAuth2Check.isChecked()) {
 586             startOauthorization();
 587
 588         } else {
 589             checkBasicAuthorization();
 590         }
 591     }
 592
 593
 594     /**
 595      * Tests the credentials entered by the user performing a check of existence on
 596      * the root folder of the ownCloud server.
 597      */
 598     private void checkBasicAuthorization() {
 599         /// get the path to the root folder through WebDAV from the version server
 600         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, false);
 601
 602         /// get basic credentials entered by user
 603         String username = mUsernameInput.getText().toString();
 604         String password = mPasswordInput.getText().toString();
 605
 606         /// be gentle with the user
 607         showDialog(DIALOG_LOGIN_PROGRESS);
 608
 609         /// test credentials accessing the root folder
 610         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 611         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this);
 612         client.setBasicCredentials(username, password);
 613         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 614     }
 615
 616
 617     /**
 618      * Starts the OAuth 'grant type' flow to get an access token, with
 619      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 620      */
 621     private void startOauthorization() {
 622         // be gentle with the user
 623         mAuthStatusIcon = R.drawable.progress_small;
 624         mAuthStatusText = R.string.oauth_login_connection;
 625         showAuthStatus();
 626
 627         // GET AUTHORIZATION request
 628         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 629         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 630         Uri.Builder uriBuilder = uri.buildUpon();
 631         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 632         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 633         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 634         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 635         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 636         uri = uriBuilder.build();
 637         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 638         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 639         startActivity(i);
 640     }
 641
 642
 643     /**
 644      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 645      *
 646      * Dispatches the operation flow to the right method.
 647      */
 648     @Override
 649     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 650
 651         if (operation instanceof OwnCloudServerCheckOperation) {
 652             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 653
 654         } else if (operation instanceof OAuth2GetAccessToken) {
 655             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 656
 657         } else if (operation instanceof ExistenceCheckOperation)  {
 658             onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 659
 660         }
 661     }
 662
 663
 664     /**
 665      * Processes the result of the server check performed when the user finishes the enter of the
 666      * server URL.
 667      *
 668      * @param operation     Server check performed.
 669      * @param result        Result of the check.
 670      */
 671     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 672         if (operation.equals(mOcServerChkOperation)) {
 673             /// save result state
 674             mServerIsChecked = true;
 675             mServerIsValid = result.isSuccess();
 676             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 677             mOcServerChkOperation = null;
 678
 679             /// update status icon and text
 680             if (mServerIsValid) {
 681                 hideRefreshButton();
 682             } else {
 683                 showRefreshButton();
 684             }
 685             updateServerStatusIconAndText(result);
 686             showServerStatus();
 687
 688             /// very special case (TODO: move to a common place for all the remote operations)
 689             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 690                 mLastSslUntrustedServerResult = result;
 691                 showDialog(DIALOG_SSL_VALIDATOR);
 692             }
 693
 694             /// retrieve discovered version and normalize server URL
 695             mDiscoveredVersion = operation.getDiscoveredVersion();
 696             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 697
 698             /// allow or not the user try to access the server
 699             mOkButton.setEnabled(mServerIsValid);
 700
 701         }   // else nothing ; only the last check operation is considered;
 702         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 703     }
 704
 705
 706     private String normalizeUrl(String url) {
 707         if (url != null && url.length() > 0) {
 708             url = url.trim();
 709             if (!url.toLowerCase().startsWith("http://") &&
 710                     !url.toLowerCase().startsWith("https://")) {
 711                 if (mIsSslConn) {
 712                     url = "https://" + url;
 713                 } else {
 714                     url = "http://" + url;
 715                 }
 716             }
 717
 718             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 719             url = trimUrlWebdav(url);
 720
 721             if (url.endsWith("/")) {
 722                 url = url.substring(0, url.length() - 1);
 723             }
 724
 725         }
 726         Log_OC.d(TAG, "URL Normalize " + url);
 727         return (url != null ? url : "");
 728     }
 729
 730
 731     private String trimUrlWebdav(String url){
 732         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 733             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 734         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 735             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 736         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 737             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 738         }
 739         return (url != null ? url : "");
 740     }
 741
 742
 743     /**
 744      * Chooses the right icon and text to show to the user for the received operation result.
 745      *
 746      * @param result    Result of a remote operation performed in this activity
 747      */
 748     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 749         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 750
 751         switch (result.getCode()) {
 752         case OK_SSL:
 753             mServerStatusIcon = android.R.drawable.ic_secure;
 754             mServerStatusText = R.string.auth_secure_connection;
 755             break;
 756
 757         case OK_NO_SSL:
 758         case OK:
 759             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 760                 mServerStatusText = R.string.auth_connection_established;
 761                 mServerStatusIcon = R.drawable.ic_ok;
 762             } else {
 763                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 764                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 765             }
 766             break;
 767
 768         case NO_NETWORK_CONNECTION:
 769             mServerStatusIcon = R.drawable.no_network;
 770             mServerStatusText = R.string.auth_no_net_conn_title;
 771             break;
 772
 773         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 774             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 775             break;
 776         case BAD_OC_VERSION:
 777             mServerStatusText = R.string.auth_bad_oc_version_title;
 778             break;
 779         case WRONG_CONNECTION:
 780             mServerStatusText = R.string.auth_wrong_connection_title;
 781             break;
 782         case TIMEOUT:
 783             mServerStatusText = R.string.auth_timeout_title;
 784             break;
 785         case INCORRECT_ADDRESS:
 786             mServerStatusText = R.string.auth_incorrect_address_title;
 787             break;
 788         case SSL_ERROR:
 789             mServerStatusText = R.string.auth_ssl_general_error_title;
 790             break;
 791         case UNAUTHORIZED:
 792             mServerStatusText = R.string.auth_unauthorized;
 793             break;
 794         case HOST_NOT_AVAILABLE:
 795             mServerStatusText = R.string.auth_unknown_host_title;
 796             break;
 797         case INSTANCE_NOT_CONFIGURED:
 798             mServerStatusText = R.string.auth_not_configured_title;
 799             break;
 800         case FILE_NOT_FOUND:
 801             mServerStatusText = R.string.auth_incorrect_path_title;
 802             break;
 803         case OAUTH2_ERROR:
 804             mServerStatusText = R.string.auth_oauth_error;
 805             break;
 806         case OAUTH2_ERROR_ACCESS_DENIED:
 807             mServerStatusText = R.string.auth_oauth_error_access_denied;
 808             break;
 809         case UNHANDLED_HTTP_CODE:
 810         case UNKNOWN_ERROR:
 811             mServerStatusText = R.string.auth_unknown_error_title;
 812             break;
 813         default:
 814             mServerStatusText = 0;
 815             mServerStatusIcon = 0;
 816         }
 817     }
 818
 819
 820     /**
 821      * Chooses the right icon and text to show to the user for the received operation result.
 822      *
 823      * @param result    Result of a remote operation performed in this activity
 824      */
 825     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 826         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 827
 828         switch (result.getCode()) {
 829         case OK_SSL:
 830             mAuthStatusIcon = android.R.drawable.ic_secure;
 831             mAuthStatusText = R.string.auth_secure_connection;
 832             break;
 833
 834         case OK_NO_SSL:
 835         case OK:
 836             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 837                 mAuthStatusText = R.string.auth_connection_established;
 838                 mAuthStatusIcon = R.drawable.ic_ok;
 839             } else {
 840                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 841                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 842             }
 843             break;
 844
 845         case NO_NETWORK_CONNECTION:
 846             mAuthStatusIcon = R.drawable.no_network;
 847             mAuthStatusText = R.string.auth_no_net_conn_title;
 848             break;
 849
 850         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 851             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
 852             break;
 853         case BAD_OC_VERSION:
 854             mAuthStatusText = R.string.auth_bad_oc_version_title;
 855             break;
 856         case WRONG_CONNECTION:
 857             mAuthStatusText = R.string.auth_wrong_connection_title;
 858             break;
 859         case TIMEOUT:
 860             mAuthStatusText = R.string.auth_timeout_title;
 861             break;
 862         case INCORRECT_ADDRESS:
 863             mAuthStatusText = R.string.auth_incorrect_address_title;
 864             break;
 865         case SSL_ERROR:
 866             mAuthStatusText = R.string.auth_ssl_general_error_title;
 867             break;
 868         case UNAUTHORIZED:
 869             mAuthStatusText = R.string.auth_unauthorized;
 870             break;
 871         case HOST_NOT_AVAILABLE:
 872             mAuthStatusText = R.string.auth_unknown_host_title;
 873             break;
 874         case INSTANCE_NOT_CONFIGURED:
 875             mAuthStatusText = R.string.auth_not_configured_title;
 876             break;
 877         case FILE_NOT_FOUND:
 878             mAuthStatusText = R.string.auth_incorrect_path_title;
 879             break;
 880         case OAUTH2_ERROR:
 881             mAuthStatusText = R.string.auth_oauth_error;
 882             break;
 883         case OAUTH2_ERROR_ACCESS_DENIED:
 884             mAuthStatusText = R.string.auth_oauth_error_access_denied;
 885             break;
 886         case UNHANDLED_HTTP_CODE:
 887         case UNKNOWN_ERROR:
 888             mAuthStatusText = R.string.auth_unknown_error_title;
 889             break;
 890         default:
 891             mAuthStatusText = 0;
 892             mAuthStatusIcon = 0;
 893         }
 894     }
 895
 896
 897     /**
 898      * Processes the result of the request for and access token send
 899      * to an OAuth authorization server.
 900      *
 901      * @param operation     Operation performed requesting the access token.
 902      * @param result        Result of the operation.
 903      */
 904     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
 905         try {
 906             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 907         } catch (IllegalArgumentException e) {
 908             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 909         }
 910
 911         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, true);
 912         if (result.isSuccess() && webdav_path != null) {
 913             /// be gentle with the user
 914             showDialog(DIALOG_LOGIN_PROGRESS);
 915
 916             /// time to test the retrieved access token on the ownCloud server
 917             mOAuthAccessToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
 918             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mOAuthAccessToken);
 919             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
 920             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this);
 921             client.setBearerCredentials(mOAuthAccessToken);
 922             mAuthCheckOperation.execute(client, this, mHandler);
 923
 924         } else {
 925             updateAuthStatusIconAndText(result);
 926             showAuthStatus();
 927             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
 928         }
 929     }
 930
 931
 932     /**
 933      * Processes the result of the access check performed to try the user credentials.
 934      *
 935      * Creates a new account through the AccountManager.
 936      *
 937      * @param operation     Access check performed.
 938      * @param result        Result of the operation.
 939      */
 940     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
 941         try {
 942             dismissDialog(DIALOG_LOGIN_PROGRESS);
 943         } catch (IllegalArgumentException e) {
 944             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 945         }
 946
 947         if (result.isSuccess()) {
 948             Log_OC.d(TAG, "Successful access - time to save the account");
 949
 950             if (mAction == ACTION_CREATE) {
 951                 createAccount();
 952
 953             } else {
 954                 updateToken();
 955             }
 956
 957             finish();
 958
 959         } else if (result.isServerFail() || result.isException()) {
 960             /// if server fail or exception in authorization, the UI is updated as when a server check failed
 961             mServerIsChecked = true;
 962             mServerIsValid = false;
 963             mIsSslConn = false;
 964             mOcServerChkOperation = null;
 965             mDiscoveredVersion = null;
 966             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 967
 968             // update status icon and text
 969             updateServerStatusIconAndText(result);
 970             showServerStatus();
 971             mAuthStatusIcon = 0;
 972             mAuthStatusText = 0;
 973             showAuthStatus();
 974
 975             // update input controls state
 976             showRefreshButton();
 977             mOkButton.setEnabled(false);
 978
 979             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
 980             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 981                 mLastSslUntrustedServerResult = result;
 982                 showDialog(DIALOG_SSL_VALIDATOR);
 983             }
 984
 985         } else {    // authorization fail due to client side - probably wrong credentials
 986             updateAuthStatusIconAndText(result);
 987             showAuthStatus();
 988             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
 989         }
 990     }
 991
 992
 993     /**
 994      * Sets the proper response to get that the Account Authenticator that started this activity saves
 995      * a new authorization token for mAccount.
 996      */
 997     private void updateToken() {
 998         Bundle response = new Bundle();
 999         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1000         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1001         boolean isOAuth = mOAuth2Check.isChecked();
1002         if (isOAuth) {
1003             response.putString(AccountManager.KEY_AUTHTOKEN, mOAuthAccessToken);
1004             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1005             mAccountMgr.setAuthToken(mAccount, AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN, mOAuthAccessToken);
1006         } else {
1007             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1008             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1009         }
1010         setAccountAuthenticatorResult(response);
1011     }
1012
1013
1014     /**
1015      * Creates a new account through the Account Authenticator that started this activity.
1016      *
1017      * This makes the account permanent.
1018      *
1019      * TODO Decide how to name the OAuth accounts
1020      */
1021     private void createAccount() {
1022         /// create and save new ownCloud account
1023         boolean isOAuth = mOAuth2Check.isChecked();
1024
1025         Uri uri = Uri.parse(mHostBaseUrl);
1026         String username = mUsernameInput.getText().toString().trim();
1027         if (isOAuth) {
1028             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1029         }
1030         String accountName = username + "@" + uri.getHost();
1031         if (uri.getPort() >= 0) {
1032             accountName += ":" + uri.getPort();
1033         }
1034         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1035         if (isOAuth) {
1036             mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with our implementation, the password is never input in the app
1037         } else {
1038             mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1039         }
1040
1041         /// add the new account as default in preferences, if there is none already
1042         Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1043         if (defaultAccount == null) {
1044             SharedPreferences.Editor editor = PreferenceManager
1045                     .getDefaultSharedPreferences(this).edit();
1046             editor.putString("select_oc_account", accountName);
1047             editor.commit();
1048         }
1049
1050         /// prepare result to return to the Authenticator
1051         //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1052         final Intent intent = new Intent();
1053         intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1054         intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1055         if (!isOAuth)
1056             intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); // TODO check this; not sure it's right; maybe
1057         intent.putExtra(AccountManager.KEY_USERDATA,        username);
1058         if (isOAuth) {
1059             mAccountMgr.setAuthToken(mAccount, AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN, mOAuthAccessToken);
1060         }
1061         /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1062         mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1063         mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1064         if (isOAuth)
1065             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");  // TODO this flag should be unnecessary
1066
1067         setAccountAuthenticatorResult(intent.getExtras());
1068         setResult(RESULT_OK, intent);
1069
1070         /// immediately request for the synchronization of the new account
1071         Bundle bundle = new Bundle();
1072         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1073         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1074     }
1075
1076
1077     /**
1078      * {@inheritDoc}
1079      *
1080      * Necessary to update the contents of the SSL Dialog
1081      *
1082      * TODO move to some common place for all possible untrusted SSL failures
1083      */
1084     @Override
1085     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1086         switch (id) {
1087         case DIALOG_LOGIN_PROGRESS:
1088         case DIALOG_CERT_NOT_SAVED:
1089         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1090             break;
1091         case DIALOG_SSL_VALIDATOR: {
1092             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1093             break;
1094         }
1095         default:
1096             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1097         }
1098     }
1099
1100
1101     /**
1102      * {@inheritDoc}
1103      */
1104     @Override
1105     protected Dialog onCreateDialog(int id) {
1106         Dialog dialog = null;
1107         switch (id) {
1108         case DIALOG_LOGIN_PROGRESS: {
1109             /// simple progress dialog
1110             ProgressDialog working_dialog = new ProgressDialog(this);
1111             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1112             working_dialog.setIndeterminate(true);
1113             working_dialog.setCancelable(true);
1114             working_dialog
1115             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1116                 @Override
1117                 public void onCancel(DialogInterface dialog) {
1118                     /// TODO study if this is enough
1119                     Log_OC.i(TAG, "Login canceled");
1120                     if (mOperationThread != null) {
1121                         mOperationThread.interrupt();
1122                         finish();
1123                     }
1124                 }
1125             });
1126             dialog = working_dialog;
1127             break;
1128         }
1129         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1130             ProgressDialog working_dialog = new ProgressDialog(this);
1131             working_dialog.setMessage(String.format("Getting authorization"));
1132             working_dialog.setIndeterminate(true);
1133             working_dialog.setCancelable(true);
1134             working_dialog
1135             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1136                 @Override
1137                 public void onCancel(DialogInterface dialog) {
1138                     Log_OC.i(TAG, "Login canceled");
1139                     finish();
1140                 }
1141             });
1142             dialog = working_dialog;
1143             break;
1144         }
1145         case DIALOG_SSL_VALIDATOR: {
1146             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1147             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1148             break;
1149         }
1150         case DIALOG_CERT_NOT_SAVED: {
1151             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1152             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1153             builder.setCancelable(false);
1154             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1155                 @Override
1156                 public void onClick(DialogInterface dialog, int which) {
1157                     dialog.dismiss();
1158                 };
1159             });
1160             dialog = builder.create();
1161             break;
1162         }
1163         default:
1164             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1165         }
1166         return dialog;
1167     }
1168
1169
1170     /**
1171      * Starts and activity to open the 'new account' page in the ownCloud web site
1172      *
1173      * @param view      'Account register' button
1174      */
1175     public void onRegisterClick(View view) {
1176         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1177         setResult(RESULT_CANCELED);
1178         startActivity(register);
1179     }
1180
1181
1182     /**
1183      * Updates the content and visibility state of the icon and text associated
1184      * to the last check on the ownCloud server.
1185      */
1186     private void showServerStatus() {
1187         TextView tv = (TextView) findViewById(R.id.server_status_text);
1188
1189         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1190             tv.setVisibility(View.INVISIBLE);
1191
1192         } else {
1193             tv.setText(mServerStatusText);
1194             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1195             tv.setVisibility(View.VISIBLE);
1196         }
1197
1198     }
1199
1200
1201     /**
1202      * Updates the content and visibility state of the icon and text associated
1203      * to the interactions with the OAuth authorization server.
1204      */
1205     private void showAuthStatus() {
1206         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1207             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1208
1209         } else {
1210             mAuthStatusLayout.setText(mAuthStatusText);
1211             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1212             mAuthStatusLayout.setVisibility(View.VISIBLE);
1213         }
1214     }
1215
1216
1217     private void showRefreshButton() {
1218         mRefreshButton.setVisibility(View.VISIBLE);
1219     }
1220
1221     private void hideRefreshButton() {
1222         mRefreshButton.setVisibility(View.GONE);
1223     }
1224
1225     /**
1226      * Called when the refresh button in the input field for ownCloud host is clicked.
1227      *
1228      * Performs a new check on the URL in the input field.
1229      *
1230      * @param view      Refresh 'button'
1231      */
1232     public void onRefreshClick(View view) {
1233         checkOcServer();
1234     }
1235
1236
1237     /**
1238      * Called when the eye icon in the password field is clicked.
1239      *
1240      * Toggles the visibility of the password in the field.
1241      */
1242     public void onViewPasswordClick() {
1243         int selectionStart = mPasswordInput.getSelectionStart();
1244         int selectionEnd = mPasswordInput.getSelectionEnd();
1245         if (isPasswordVisible()) {
1246             hidePassword();
1247         } else {
1248             showPassword();
1249         }
1250         mPasswordInput.setSelection(selectionStart, selectionEnd);
1251     }
1252
1253
1254     /**
1255      * Called when the checkbox for OAuth authorization is clicked.
1256      *
1257      * Hides or shows the input fields for user & password.
1258      *
1259      * @param view      'View password' 'button'
1260      */
1261     public void onCheckClick(View view) {
1262         CheckBox oAuth2Check = (CheckBox)view;
1263         changeViewByOAuth2Check(oAuth2Check.isChecked());
1264
1265     }
1266
1267     /**
1268      * Changes the visibility of input elements depending upon the kind of authorization
1269      * chosen by the user: basic or OAuth
1270      *
1271      * @param checked       'True' when OAuth is selected.
1272      */
1273     public void changeViewByOAuth2Check(Boolean checked) {
1274
1275         if (checked) {
1276             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1277             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1278             mUsernameInput.setVisibility(View.GONE);
1279             mPasswordInput.setVisibility(View.GONE);
1280         } else {
1281             mOAuthAuthEndpointText.setVisibility(View.GONE);
1282             mOAuthTokenEndpointText.setVisibility(View.GONE);
1283             mUsernameInput.setVisibility(View.VISIBLE);
1284             mPasswordInput.setVisibility(View.VISIBLE);
1285         }
1286
1287     }
1288
1289     /**
1290      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1291      */
1292     public void onSavedCertificate() {
1293         checkOcServer();
1294     }
1295
1296     /**
1297      * Called from SslValidatorDialog when a new server certificate could not be saved
1298      * when the user requested it.
1299      */
1300     @Override
1301     public void onFailedSavingCertificate() {
1302         showDialog(DIALOG_CERT_NOT_SAVED);
1303     }
1304
1305
1306     /**
1307      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1308      *
1309      *  Used to trigger the authorization check when the user presses 'enter' after writing the password.
1310      */
1311     @Override
1312     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1313         if (inputField != null && inputField.equals(mPasswordInput) &&
1314                 actionId == EditorInfo.IME_ACTION_DONE) {
1315             if (mOkButton.isEnabled()) {
1316                 mOkButton.performClick();
1317             }
1318         }
1319         return false;   // always return false to grant that the software keyboard is hidden anyway
1320     }
1321
1322
1323     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1324
1325         private int fuzz = 75;
1326
1327         /**
1328          * {@inheritDoc}
1329          */
1330         @Override
1331         public boolean onTouch(View view, MotionEvent event) {
1332             Drawable rightDrawable = null;
1333             if (view instanceof TextView) {
1334                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1335                 if (drawables.length > 2) {
1336                     rightDrawable = drawables[2];
1337                 }
1338             }
1339             if (rightDrawable != null) {
1340                 final int x = (int) event.getX();
1341                 final int y = (int) event.getY();
1342                 final Rect bounds = rightDrawable.getBounds();
1343                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1344                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1345
1346                     return onDrawableTouch(event);
1347                 }
1348             }
1349             return false;
1350         }
1351
1352         public abstract boolean onDrawableTouch(final MotionEvent event);
1353     }
1354
1355 }