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