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