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