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 android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.ContentResolver;
  27 import android.content.DialogInterface;
  28 import android.content.Intent;
  29 import android.content.SharedPreferences;
  30 import android.graphics.Rect;
  31 import android.graphics.drawable.Drawable;
  32 import android.net.Uri;
  33 import android.os.Bundle;
  34 import android.os.Handler;
  35 import android.preference.PreferenceManager;
  36 import android.support.v4.app.Fragment;
  37 import android.text.Editable;
  38 import android.text.InputType;
  39 import android.text.TextWatcher;
  40 import android.view.KeyEvent;
  41 import android.view.MotionEvent;
  42 import android.view.View;
  43 import android.view.View.OnFocusChangeListener;
  44 import android.view.View.OnTouchListener;
  45 import android.view.Window;
  46 import android.view.inputmethod.EditorInfo;
  47 import android.widget.Button;
  48 import android.widget.CheckBox;
  49 import android.widget.EditText;
  50 import android.widget.TextView;
  51 import android.widget.TextView.OnEditorActionListener;
  52 import android.widget.Toast;
  53
  54 import com.actionbarsherlock.app.SherlockDialogFragment;
  55 import com.owncloud.android.Log_OC;
  56 import com.owncloud.android.MainApp;
  57 import com.owncloud.android.R;
  58 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  59 import com.owncloud.android.network.OwnCloudClientUtils;
  60 import com.owncloud.android.operations.ExistenceCheckOperation;
  61 import com.owncloud.android.operations.OAuth2GetAccessToken;
  62 import com.owncloud.android.operations.OnRemoteOperationListener;
  63 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  64 import com.owncloud.android.operations.RemoteOperation;
  65 import com.owncloud.android.operations.RemoteOperationResult;
  66 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  67 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  68 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  70 import com.owncloud.android.utils.OwnCloudVersion;
  71
  72 import eu.alefzero.webdav.WebdavClient;
  73
  74 /**
  75  * This Activity is used to add an ownCloud account to the App
  76  *
  77  * @author Bartek Przybylski
  78  * @author David A. Velasco
  79  */
  80 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  81 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  82
  83     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  84
  85     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  86     public static final String EXTRA_USER_NAME = "USER_NAME";
  87     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  88     public static final String EXTRA_ACTION = "ACTION";
  89     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  90
  91     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  92     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  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 KEY_OC_USERNAME_EQUALS = "oc_username=";
 108
 109     private static final String AUTH_ON = "on";
 110     private static final String AUTH_OFF = "off";
 111     private static final String AUTH_OPTIONAL = "optional";
 112
 113     private static final int DIALOG_LOGIN_PROGRESS = 0;
 114     private static final int DIALOG_SSL_VALIDATOR = 1;
 115     private static final int DIALOG_CERT_NOT_SAVED = 2;
 116     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 117
 118     public static final byte ACTION_CREATE = 0;
 119     public static final byte ACTION_UPDATE_TOKEN = 1;
 120
 121     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 122
 123     private String mHostBaseUrl;
 124     private OwnCloudVersion mDiscoveredVersion;
 125
 126     private String mAuthMessageText;
 127     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 128     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 129     private int mAuthStatusText, mAuthStatusIcon;
 130     private TextView mAuthStatusLayout;
 131
 132     private final Handler mHandler = new Handler();
 133     private Thread mOperationThread;
 134     private OwnCloudServerCheckOperation mOcServerChkOperation;
 135     private ExistenceCheckOperation mAuthCheckOperation;
 136     private RemoteOperationResult mLastSslUntrustedServerResult;
 137
 138     private Uri mNewCapturedUriFromOAuth2Redirection;
 139
 140     private AccountManager mAccountMgr;
 141     private boolean mJustCreated;
 142     private byte mAction;
 143     private Account mAccount;
 144
 145     private TextView mAuthMessage;
 146
 147     private EditText mHostUrlInput;
 148     private boolean mHostUrlInputEnabled;
 149     private View mRefreshButton;
 150
 151     private String mAuthTokenType;
 152
 153     private EditText mUsernameInput;
 154     private EditText mPasswordInput;
 155
 156     private CheckBox mOAuth2Check;
 157
 158     private TextView mOAuthAuthEndpointText;
 159     private TextView mOAuthTokenEndpointText;
 160
 161     private SamlWebViewDialog mSamlDialog;
 162
 163     private View mOkButton;
 164
 165     private String mAuthToken;
 166
 167     private boolean mResumed; // Control if activity is resumed
 168
 169
 170     /**
 171      * {@inheritDoc}
 172      *
 173      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 174      */
 175     @Override
 176     protected void onCreate(Bundle savedInstanceState) {
 177         super.onCreate(savedInstanceState);
 178         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 179
 180         /// set view and get references to view elements
 181         setContentView(R.layout.account_setup);
 182         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 183         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 184         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 185         mUsernameInput = (EditText) findViewById(R.id.account_username);
 186         mPasswordInput = (EditText) findViewById(R.id.account_password);
 187         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 188         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 189         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 190         mOkButton = findViewById(R.id.buttonOK);
 191         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 192
 193         /// set Host Url Input Enabled
 194         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 195
 196
 197         /// complete label for 'register account' button
 198         Button b = (Button) findViewById(R.id.account_register);
 199         if (b != null) {
 200             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 201         }
 202
 203         /// initialization
 204         mAccountMgr = AccountManager.get(this);
 205         mNewCapturedUriFromOAuth2Redirection = null;
 206         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 207         mAccount = null;
 208         mHostBaseUrl = "";
 209         boolean refreshButtonEnabled = false;
 210
 211         // URL input configuration applied
 212         if (!mHostUrlInputEnabled)
 213         {
 214             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 215             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 216
 217         } else {
 218             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 219         }
 220
 221         if (savedInstanceState == null) {
 222             mResumed = false;
 223             /// connection state and info
 224             mAuthMessageVisibility = View.GONE;
 225             mServerStatusText = mServerStatusIcon = 0;
 226             mServerIsValid = false;
 227             mServerIsChecked = false;
 228             mIsSslConn = false;
 229             mAuthStatusText = mAuthStatusIcon = 0;
 230
 231             /// retrieve extras from intent
 232             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 233             if (mAccount != null) {
 234                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 235                 if (ocVersion != null) {
 236                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 237                 }
 238                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 239                 mHostUrlInput.setText(mHostBaseUrl);
 240                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 241                 mUsernameInput.setText(userName);
 242             }
 243             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 244             mJustCreated = true;
 245
 246             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 247                 checkOcServer();
 248             }
 249
 250         } else {
 251             mResumed = true;
 252             /// connection state and info
 253             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 254             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 255             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 256             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 257             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 258             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 259             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 260             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 261             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 262             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 263                 showPassword();
 264             }
 265
 266             /// server data
 267             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 268             if (ocVersion != null) {
 269                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 270             }
 271             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 272
 273             // account data, if updating
 274             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 275             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 276             if (mAuthTokenType == null) {
 277                 mAuthTokenType =  MainApp.getAuthTokenTypePass();
 278
 279             }
 280
 281             // check if server check was interrupted by a configuration change
 282             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 283                 checkOcServer();
 284             }
 285
 286             // refresh button enabled
 287             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 288
 289
 290         }
 291
 292         if (mAuthMessageVisibility== View.VISIBLE) {
 293             showAuthMessage(mAuthMessageText);
 294         }
 295         else {
 296             hideAuthMessage();
 297         }
 298         adaptViewAccordingToAuthenticationMethod();
 299         showServerStatus();
 300         showAuthStatus();
 301
 302         if (mAction == ACTION_UPDATE_TOKEN) {
 303             /// lock things that should not change
 304             mHostUrlInput.setEnabled(false);
 305             mHostUrlInput.setFocusable(false);
 306             mUsernameInput.setEnabled(false);
 307             mUsernameInput.setFocusable(false);
 308             mOAuth2Check.setVisibility(View.GONE);
 309         }
 310
 311         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 312         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 313         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 314
 315         if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType) ||
 316                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 317             mOAuth2Check.setVisibility(View.GONE);
 318         }
 319
 320         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 321
 322         /// bind view elements to listeners and other friends
 323         mHostUrlInput.setOnFocusChangeListener(this);
 324         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 325         mHostUrlInput.setOnEditorActionListener(this);
 326         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 327
 328             @Override
 329             public void afterTextChanged(Editable s) {
 330                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 331                     mOkButton.setEnabled(false);
 332                 }
 333             }
 334
 335             @Override
 336             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 337             }
 338
 339             @Override
 340             public void onTextChanged(CharSequence s, int start, int before, int count) {
 341                 if (!mResumed) {
 342                     mAuthStatusIcon = 0;
 343                     mAuthStatusText = 0;
 344                     showAuthStatus();
 345                 }
 346                 mResumed = false;
 347             }
 348         });
 349
 350         mPasswordInput.setOnFocusChangeListener(this);
 351         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 352         mPasswordInput.setOnEditorActionListener(this);
 353         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 354             @Override
 355             public boolean onDrawableTouch(final MotionEvent event) {
 356                 if (event.getAction() == MotionEvent.ACTION_UP) {
 357                     AuthenticatorActivity.this.onViewPasswordClick();
 358                 }
 359                 return true;
 360             }
 361         });
 362
 363         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 364             @Override
 365             public boolean onTouch(View view, MotionEvent event) {
 366                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 367                     if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType) &&
 368                             mHostUrlInput.hasFocus()) {
 369                         checkOcServer();
 370                     }
 371                 }
 372                 return false;
 373             }
 374         });
 375     }
 376
 377
 378
 379     private void initAuthorizationMethod() {
 380         boolean oAuthRequired = false;
 381         boolean samlWebSsoRequired = false;
 382
 383         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 384         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 385
 386         // TODO could be a good moment to validate the received token type, if not null
 387
 388         if (mAuthTokenType == null) {
 389             if (mAccount != null) {
 390                 /// same authentication method than the one used to create the account to update
 391                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 392                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 393
 394             } else {
 395                 /// use the one set in setup.xml
 396                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 397                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 398             }
 399             if (oAuthRequired) {
 400                 mAuthTokenType = MainApp.getAuthTokenTypeAccessToken();
 401             } else if (samlWebSsoRequired) {
 402                 mAuthTokenType = MainApp.getAuthTokenTypeSamlSessionCookie();
 403             } else {
 404                 mAuthTokenType = MainApp.getAuthTokenTypePass();
 405             }
 406         }
 407
 408         if (mAccount != null) {
 409             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 410             mUsernameInput.setText(userName);
 411         }
 412
 413         mOAuth2Check.setChecked(MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType));
 414
 415     }
 416
 417     /**
 418      * Saves relevant state before {@link #onPause()}
 419      *
 420      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 421      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 422      *
 423      * See {@link #loadSavedInstanceState(Bundle)}
 424      */
 425     @Override
 426     protected void onSaveInstanceState(Bundle outState) {
 427         super.onSaveInstanceState(outState);
 428
 429         /// connection state and info
 430         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 431         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 432         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 433         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 434         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 435         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 436         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 437         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 438         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 439         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 440         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 441
 442         /// server data
 443         if (mDiscoveredVersion != null) {
 444             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 445         }
 446         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 447
 448         /// account data, if updating
 449         if (mAccount != null) {
 450             outState.putParcelable(KEY_ACCOUNT, mAccount);
 451         }
 452         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 453
 454         // refresh button enabled
 455         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 456
 457
 458     }
 459
 460
 461     /**
 462      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 463      * is caught here.
 464      *
 465      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 466      * AndroidManifest.xml file.
 467      */
 468     @Override
 469     protected void onNewIntent (Intent intent) {
 470         Log_OC.d(TAG, "onNewIntent()");
 471         Uri data = intent.getData();
 472         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 473             mNewCapturedUriFromOAuth2Redirection = data;
 474         }
 475     }
 476
 477
 478     /**
 479      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 480      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 481      */
 482     @Override
 483     protected void onResume() {
 484         super.onResume();
 485         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 486             if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
 487                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 488                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 489             } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
 490                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 491                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 492             } else {
 493                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 494                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 495             }
 496         }
 497
 498         if (mNewCapturedUriFromOAuth2Redirection != null) {
 499             getOAuth2AccessTokenFromCapturedRedirection();
 500         }
 501
 502         mJustCreated = false;
 503
 504     }
 505
 506
 507     /**
 508      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 509      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 510      */
 511     private void getOAuth2AccessTokenFromCapturedRedirection() {
 512         /// Parse data from OAuth redirection
 513         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 514         mNewCapturedUriFromOAuth2Redirection = null;
 515
 516         /// Showing the dialog with instructions for the user.
 517         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 518
 519         /// GET ACCESS TOKEN to the oAuth server
 520         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 521                 getString(R.string.oauth2_redirect_uri),
 522                 getString(R.string.oauth2_grant_type),
 523                 queryParameters);
 524         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 525         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 526         operation.execute(client, this, mHandler);
 527     }
 528
 529
 530
 531     /**
 532      * Handles the change of focus on the text inputs for the server URL and the password
 533      */
 534     public void onFocusChange(View view, boolean hasFocus) {
 535         if (view.getId() == R.id.hostUrlInput) {
 536             if (!hasFocus) {
 537                 onUrlInputFocusLost((TextView) view);
 538             }
 539             else {
 540                 hideRefreshButton();
 541             }
 542
 543         } else if (view.getId() == R.id.account_password) {
 544             onPasswordFocusChanged((TextView) view, hasFocus);
 545         }
 546     }
 547
 548
 549     /**
 550      * Handles changes in focus on the text input for the server URL.
 551      *
 552      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 553      * other field. The operation to check the existence of the server in the entered URL is
 554      * started.
 555      *
 556      * When hasFocus:    user 'comes back' to write again the server URL.
 557      *
 558      * @param hostInput     TextView with the URL input field receiving the change of focus.
 559      */
 560     private void onUrlInputFocusLost(TextView hostInput) {
 561         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 562             checkOcServer();
 563         } else {
 564             mOkButton.setEnabled(mServerIsValid);
 565             if (!mServerIsValid) {
 566                 showRefreshButton();
 567             }
 568         }
 569     }
 570
 571
 572     private void checkOcServer() {
 573         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 574
 575         if (!mHostUrlInputEnabled){
 576             uri = getString(R.string.server_url);
 577         }
 578
 579         mServerIsValid = false;
 580         mServerIsChecked = false;
 581         mOkButton.setEnabled(false);
 582         mDiscoveredVersion = null;
 583         hideRefreshButton();
 584         if (uri.length() != 0) {
 585             mServerStatusText = R.string.auth_testing_connection;
 586             mServerStatusIcon = R.drawable.progress_small;
 587             showServerStatus();
 588             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 589             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 590             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 591         } else {
 592             mServerStatusText = 0;
 593             mServerStatusIcon = 0;
 594             showServerStatus();
 595         }
 596     }
 597
 598
 599     /**
 600      * Handles changes in focus on the text input for the password (basic authorization).
 601      *
 602      * When (hasFocus), the button to toggle password visibility is shown.
 603      *
 604      * When (!hasFocus), the button is made invisible and the password is hidden.
 605      *
 606      * @param passwordInput    TextView with the password input field receiving the change of focus.
 607      * @param hasFocus          'True' if focus is received, 'false' if is lost
 608      */
 609     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 610         if (hasFocus) {
 611             showViewPasswordButton();
 612         } else {
 613             hidePassword();
 614             hidePasswordButton();
 615         }
 616     }
 617
 618
 619     private void showViewPasswordButton() {
 620         //int drawable = android.R.drawable.ic_menu_view;
 621         int drawable = R.drawable.ic_view;
 622         if (isPasswordVisible()) {
 623             //drawable = android.R.drawable.ic_secure;
 624             drawable = R.drawable.ic_hide;
 625         }
 626         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 627     }
 628
 629     private boolean isPasswordVisible() {
 630         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 631     }
 632
 633     private void hidePasswordButton() {
 634         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 635     }
 636
 637     private void showPassword() {
 638         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 639         showViewPasswordButton();
 640     }
 641
 642     private void hidePassword() {
 643         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 644         showViewPasswordButton();
 645     }
 646
 647
 648     /**
 649      * Cancels the authenticator activity
 650      *
 651      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 652      *
 653      * This method is bound in the layout/acceoun_setup.xml resource file.
 654      *
 655      * @param view      Cancel button
 656      */
 657     public void onCancelClick(View view) {
 658         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 659         finish();
 660     }
 661
 662
 663
 664     /**
 665      * Checks the credentials of the user in the root of the ownCloud server
 666      * before creating a new local account.
 667      *
 668      * For basic authorization, a check of existence of the root folder is
 669      * performed.
 670      *
 671      * For OAuth, starts the flow to get an access token; the credentials test
 672      * is postponed until it is available.
 673      *
 674      * IMPORTANT ENTRY POINT 4
 675      *
 676      * @param view      OK button
 677      */
 678     public void onOkClick(View view) {
 679         // this check should be unnecessary
 680         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 681             mServerStatusIcon = R.drawable.common_error;
 682             mServerStatusText = R.string.auth_wtf_reenter_URL;
 683             showServerStatus();
 684             mOkButton.setEnabled(false);
 685             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 686             return;
 687         }
 688
 689         if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
 690             startOauthorization();
 691         } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
 692             startSamlBasedFederatedSingleSignOnAuthorization();
 693         } else {
 694             checkBasicAuthorization();
 695         }
 696     }
 697
 698
 699     /**
 700      * Tests the credentials entered by the user performing a check of existence on
 701      * the root folder of the ownCloud server.
 702      */
 703     private void checkBasicAuthorization() {
 704         /// get the path to the root folder through WebDAV from the version server
 705         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 706
 707         /// get basic credentials entered by user
 708         String username = mUsernameInput.getText().toString();
 709         String password = mPasswordInput.getText().toString();
 710
 711         /// be gentle with the user
 712         showDialog(DIALOG_LOGIN_PROGRESS);
 713
 714         /// test credentials accessing the root folder
 715         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 716         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 717         client.setBasicCredentials(username, password);
 718         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 719     }
 720
 721
 722     /**
 723      * Starts the OAuth 'grant type' flow to get an access token, with
 724      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 725      */
 726     private void startOauthorization() {
 727         // be gentle with the user
 728         mAuthStatusIcon = R.drawable.progress_small;
 729         mAuthStatusText = R.string.oauth_login_connection;
 730         showAuthStatus();
 731
 732
 733         // GET AUTHORIZATION request
 734         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 735         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 736         Uri.Builder uriBuilder = uri.buildUpon();
 737         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 738         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 739         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 740         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 741         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 742         uri = uriBuilder.build();
 743         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 744         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 745         startActivity(i);
 746     }
 747
 748
 749     /**
 750      * Starts the Web Single Sign On flow to get access to the root folder
 751      * in the server.
 752      */
 753     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 754         // be gentle with the user
 755         mAuthStatusIcon = R.drawable.progress_small;
 756         mAuthStatusText = R.string.auth_connecting_auth_server;
 757         showAuthStatus();
 758         showDialog(DIALOG_LOGIN_PROGRESS);
 759
 760         /// get the path to the root folder through WebDAV from the version server
 761         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 762
 763         /// test credentials accessing the root folder
 764         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 765         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 766         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 767
 768     }
 769
 770     /**
 771      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 772      *
 773      * Dispatches the operation flow to the right method.
 774      */
 775     @Override
 776     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 777
 778         if (operation instanceof OwnCloudServerCheckOperation) {
 779             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 780
 781         } else if (operation instanceof OAuth2GetAccessToken) {
 782             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 783
 784         } else if (operation instanceof ExistenceCheckOperation)  {
 785             if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
 786                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 787
 788             } else {
 789                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 790             }
 791         }
 792     }
 793
 794
 795     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 796         try {
 797             dismissDialog(DIALOG_LOGIN_PROGRESS);
 798         } catch (IllegalArgumentException e) {
 799             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 800         }
 801
 802         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 803         if (result.isIdPRedirection()) {
 804             String url = result.getRedirectedLocation();
 805             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 806
 807             // Show dialog
 808             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 809             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 810
 811             mAuthStatusIcon = 0;
 812             mAuthStatusText = 0;
 813
 814         } else {
 815             mAuthStatusIcon = R.drawable.common_error;
 816             mAuthStatusText = R.string.auth_unsupported_auth_method;
 817
 818         }
 819         showAuthStatus();
 820     }
 821
 822
 823     /**
 824      * Processes the result of the server check performed when the user finishes the enter of the
 825      * server URL.
 826      *
 827      * @param operation     Server check performed.
 828      * @param result        Result of the check.
 829      */
 830     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 831         if (operation.equals(mOcServerChkOperation)) {
 832             /// save result state
 833             mServerIsChecked = true;
 834             mServerIsValid = result.isSuccess();
 835             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 836             mOcServerChkOperation = null;
 837
 838             /// update status icon and text
 839             if (mServerIsValid) {
 840                 hideRefreshButton();
 841             } else {
 842                 showRefreshButton();
 843             }
 844             updateServerStatusIconAndText(result);
 845             showServerStatus();
 846
 847             /// very special case (TODO: move to a common place for all the remote operations)
 848             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 849                 mLastSslUntrustedServerResult = result;
 850                 showDialog(DIALOG_SSL_VALIDATOR);
 851             }
 852
 853             /// retrieve discovered version and normalize server URL
 854             mDiscoveredVersion = operation.getDiscoveredVersion();
 855             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 856
 857             /// allow or not the user try to access the server
 858             mOkButton.setEnabled(mServerIsValid);
 859
 860         }   // else nothing ; only the last check operation is considered;
 861         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 862     }
 863
 864
 865     private String normalizeUrl(String url) {
 866         if (url != null && url.length() > 0) {
 867             url = url.trim();
 868             if (!url.toLowerCase().startsWith("http://") &&
 869                     !url.toLowerCase().startsWith("https://")) {
 870                 if (mIsSslConn) {
 871                     url = "https://" + url;
 872                 } else {
 873                     url = "http://" + url;
 874                 }
 875             }
 876
 877             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 878             url = trimUrlWebdav(url);
 879
 880             if (url.endsWith("/")) {
 881                 url = url.substring(0, url.length() - 1);
 882             }
 883
 884         }
 885         return (url != null ? url : "");
 886     }
 887
 888
 889     private String trimUrlWebdav(String url){
 890         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 891             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 892         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 893             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 894         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 895             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 896         }
 897         return (url != null ? url : "");
 898     }
 899
 900
 901     /**
 902      * Chooses the right icon and text to show to the user for the received operation result.
 903      *
 904      * @param result    Result of a remote operation performed in this activity
 905      */
 906     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 907         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 908
 909         switch (result.getCode()) {
 910         case OK_SSL:
 911             mServerStatusIcon = android.R.drawable.ic_secure;
 912             mServerStatusText = R.string.auth_secure_connection;
 913             break;
 914
 915         case OK_NO_SSL:
 916         case OK:
 917             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 918                 mServerStatusText = R.string.auth_connection_established;
 919                 mServerStatusIcon = R.drawable.ic_ok;
 920             } else {
 921                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 922                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 923             }
 924             break;
 925
 926         case NO_NETWORK_CONNECTION:
 927             mServerStatusIcon = R.drawable.no_network;
 928             mServerStatusText = R.string.auth_no_net_conn_title;
 929             break;
 930
 931         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 932             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 933             break;
 934         case BAD_OC_VERSION:
 935             mServerStatusText = R.string.auth_bad_oc_version_title;
 936             break;
 937         case WRONG_CONNECTION:
 938             mServerStatusText = R.string.auth_wrong_connection_title;
 939             break;
 940         case TIMEOUT:
 941             mServerStatusText = R.string.auth_timeout_title;
 942             break;
 943         case INCORRECT_ADDRESS:
 944             mServerStatusText = R.string.auth_incorrect_address_title;
 945             break;
 946         case SSL_ERROR:
 947             mServerStatusText = R.string.auth_ssl_general_error_title;
 948             break;
 949         case UNAUTHORIZED:
 950             mServerStatusText = R.string.auth_unauthorized;
 951             break;
 952         case HOST_NOT_AVAILABLE:
 953             mServerStatusText = R.string.auth_unknown_host_title;
 954             break;
 955         case INSTANCE_NOT_CONFIGURED:
 956             mServerStatusText = R.string.auth_not_configured_title;
 957             break;
 958         case FILE_NOT_FOUND:
 959             mServerStatusText = R.string.auth_incorrect_path_title;
 960             break;
 961         case OAUTH2_ERROR:
 962             mServerStatusText = R.string.auth_oauth_error;
 963             break;
 964         case OAUTH2_ERROR_ACCESS_DENIED:
 965             mServerStatusText = R.string.auth_oauth_error_access_denied;
 966             break;
 967         case UNHANDLED_HTTP_CODE:
 968         case UNKNOWN_ERROR:
 969             mServerStatusText = R.string.auth_unknown_error_title;
 970             break;
 971         default:
 972             mServerStatusText = 0;
 973             mServerStatusIcon = 0;
 974         }
 975     }
 976
 977
 978     /**
 979      * Chooses the right icon and text to show to the user for the received operation result.
 980      *
 981      * @param result    Result of a remote operation performed in this activity
 982      */
 983     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 984         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 985
 986         switch (result.getCode()) {
 987         case OK_SSL:
 988             mAuthStatusIcon = android.R.drawable.ic_secure;
 989             mAuthStatusText = R.string.auth_secure_connection;
 990             break;
 991
 992         case OK_NO_SSL:
 993         case OK:
 994             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 995                 mAuthStatusText = R.string.auth_connection_established;
 996                 mAuthStatusIcon = R.drawable.ic_ok;
 997             } else {
 998                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 999                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1000             }
1001             break;
1002
1003         case NO_NETWORK_CONNECTION:
1004             mAuthStatusIcon = R.drawable.no_network;
1005             mAuthStatusText = R.string.auth_no_net_conn_title;
1006             break;
1007
1008         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1009             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1010             break;
1011         case BAD_OC_VERSION:
1012             mAuthStatusText = R.string.auth_bad_oc_version_title;
1013             break;
1014         case WRONG_CONNECTION:
1015             mAuthStatusText = R.string.auth_wrong_connection_title;
1016             break;
1017         case TIMEOUT:
1018             mAuthStatusText = R.string.auth_timeout_title;
1019             break;
1020         case INCORRECT_ADDRESS:
1021             mAuthStatusText = R.string.auth_incorrect_address_title;
1022             break;
1023         case SSL_ERROR:
1024             mAuthStatusText = R.string.auth_ssl_general_error_title;
1025             break;
1026         case UNAUTHORIZED:
1027             mAuthStatusText = R.string.auth_unauthorized;
1028             break;
1029         case HOST_NOT_AVAILABLE:
1030             mAuthStatusText = R.string.auth_unknown_host_title;
1031             break;
1032         case INSTANCE_NOT_CONFIGURED:
1033             mAuthStatusText = R.string.auth_not_configured_title;
1034             break;
1035         case FILE_NOT_FOUND:
1036             mAuthStatusText = R.string.auth_incorrect_path_title;
1037             break;
1038         case OAUTH2_ERROR:
1039             mAuthStatusText = R.string.auth_oauth_error;
1040             break;
1041         case OAUTH2_ERROR_ACCESS_DENIED:
1042             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1043             break;
1044         case ACCOUNT_NOT_NEW:
1045             mAuthStatusText = R.string.auth_account_not_new;
1046             break;
1047         case ACCOUNT_NOT_THE_SAME:
1048             mAuthStatusText = R.string.auth_account_not_the_same;
1049             break;
1050         case UNHANDLED_HTTP_CODE:
1051         case UNKNOWN_ERROR:
1052             mAuthStatusText = R.string.auth_unknown_error_title;
1053             break;
1054         default:
1055             mAuthStatusText = 0;
1056             mAuthStatusIcon = 0;
1057         }
1058     }
1059
1060
1061     /**
1062      * Processes the result of the request for and access token send
1063      * to an OAuth authorization server.
1064      *
1065      * @param operation     Operation performed requesting the access token.
1066      * @param result        Result of the operation.
1067      */
1068     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1069         try {
1070             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1071         } catch (IllegalArgumentException e) {
1072             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1073         }
1074
1075         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1076         if (result.isSuccess() && webdav_path != null) {
1077             /// be gentle with the user
1078             showDialog(DIALOG_LOGIN_PROGRESS);
1079
1080             /// time to test the retrieved access token on the ownCloud server
1081             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1082             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1083             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1084             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1085             client.setBearerCredentials(mAuthToken);
1086             mAuthCheckOperation.execute(client, this, mHandler);
1087
1088         } else {
1089             updateAuthStatusIconAndText(result);
1090             showAuthStatus();
1091             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1092         }
1093     }
1094
1095
1096     /**
1097      * Processes the result of the access check performed to try the user credentials.
1098      *
1099      * Creates a new account through the AccountManager.
1100      *
1101      * @param operation     Access check performed.
1102      * @param result        Result of the operation.
1103      */
1104     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1105         try {
1106             dismissDialog(DIALOG_LOGIN_PROGRESS);
1107         } catch (IllegalArgumentException e) {
1108             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1109         }
1110
1111         if (result.isSuccess()) {
1112             Log_OC.d(TAG, "Successful access - time to save the account");
1113
1114             boolean success = false;
1115             if (mAction == ACTION_CREATE) {
1116                 success = createAccount();
1117
1118             } else {
1119                 success = updateToken();
1120             }
1121
1122             if (success) {
1123                 finish();
1124             }
1125
1126         } else if (result.isServerFail() || result.isException()) {
1127             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1128             mServerIsChecked = true;
1129             mServerIsValid = false;
1130             mIsSslConn = false;
1131             mOcServerChkOperation = null;
1132             mDiscoveredVersion = null;
1133             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1134
1135             // update status icon and text
1136             updateServerStatusIconAndText(result);
1137             showServerStatus();
1138             mAuthStatusIcon = 0;
1139             mAuthStatusText = 0;
1140             showAuthStatus();
1141
1142             // update input controls state
1143             showRefreshButton();
1144             mOkButton.setEnabled(false);
1145
1146             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1147             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1148                 mLastSslUntrustedServerResult = result;
1149                 showDialog(DIALOG_SSL_VALIDATOR);
1150             }
1151
1152         } else {    // authorization fail due to client side - probably wrong credentials
1153             updateAuthStatusIconAndText(result);
1154             showAuthStatus();
1155             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1156         }
1157
1158     }
1159
1160
1161     /**
1162      * Sets the proper response to get that the Account Authenticator that started this activity saves
1163      * a new authorization token for mAccount.
1164      */
1165     private boolean updateToken() {
1166         Bundle response = new Bundle();
1167         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1168         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1169
1170         if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
1171             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1172             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1173             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1174
1175         } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
1176             String username = getUserNameForSamlSso();
1177             if (!mUsernameInput.getText().toString().equals(username)) {
1178                 // fail - not a new account, but an existing one; disallow
1179                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1180                 updateAuthStatusIconAndText(result);
1181                 showAuthStatus();
1182                 Log_OC.d(TAG, result.getLogMessage());
1183
1184                 return false;
1185             }
1186
1187             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1188             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1189             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1190
1191         } else {
1192             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1193             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1194         }
1195         setAccountAuthenticatorResult(response);
1196
1197         return true;
1198     }
1199
1200
1201     /**
1202      * Creates a new account through the Account Authenticator that started this activity.
1203      *
1204      * This makes the account permanent.
1205      *
1206      * TODO Decide how to name the OAuth accounts
1207      */
1208     private boolean createAccount() {
1209         /// create and save new ownCloud account
1210         boolean isOAuth = MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType);
1211         boolean isSaml =  MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType);
1212
1213         Uri uri = Uri.parse(mHostBaseUrl);
1214         String username = mUsernameInput.getText().toString().trim();
1215         if (isSaml) {
1216             username = getUserNameForSamlSso();
1217
1218         } else if (isOAuth) {
1219             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1220         }
1221         String accountName = username + "@" + uri.getHost();
1222         if (uri.getPort() >= 0) {
1223             accountName += ":" + uri.getPort();
1224         }
1225         mAccount = new Account(accountName, MainApp.getAccountType());
1226         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1227             // fail - not a new account, but an existing one; disallow
1228             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1229             updateAuthStatusIconAndText(result);
1230             showAuthStatus();
1231             Log_OC.d(TAG, result.getLogMessage());
1232             return false;
1233
1234         } else {
1235
1236             if (isOAuth || isSaml) {
1237                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1238             } else {
1239                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1240             }
1241
1242             /// add the new account as default in preferences, if there is none already
1243             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1244             if (defaultAccount == null) {
1245                 SharedPreferences.Editor editor = PreferenceManager
1246                         .getDefaultSharedPreferences(this).edit();
1247                 editor.putString("select_oc_account", accountName);
1248                 editor.commit();
1249             }
1250
1251             /// prepare result to return to the Authenticator
1252             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1253             final Intent intent = new Intent();
1254             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1255             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1256             /*if (!isOAuth)
1257                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1258             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1259             if (isOAuth || isSaml) {
1260                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1261             }
1262             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1263             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1264             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1265             if (isSaml) {
1266                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1267             } else if (isOAuth) {
1268                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1269             }
1270
1271             setAccountAuthenticatorResult(intent.getExtras());
1272             setResult(RESULT_OK, intent);
1273
1274             /// immediately request for the synchronization of the new account
1275             Bundle bundle = new Bundle();
1276             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1277             ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1278             syncAccount();
1279 //          Bundle bundle = new Bundle();
1280 //          bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1281 //          ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1282             return true;
1283         }
1284     }
1285
1286
1287     private String getUserNameForSamlSso() {
1288         if (mAuthToken != null) {
1289             String [] cookies = mAuthToken.split(";");
1290             for (int i=0; i<cookies.length; i++) {
1291                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1292                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1293                     return value;
1294                 }
1295             }
1296         }
1297         return "";
1298     }
1299
1300
1301     /**
1302      * {@inheritDoc}
1303      *
1304      * Necessary to update the contents of the SSL Dialog
1305      *
1306      * TODO move to some common place for all possible untrusted SSL failures
1307      */
1308     @Override
1309     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1310         switch (id) {
1311         case DIALOG_LOGIN_PROGRESS:
1312         case DIALOG_CERT_NOT_SAVED:
1313         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1314             break;
1315         case DIALOG_SSL_VALIDATOR: {
1316             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1317             break;
1318         }
1319         default:
1320             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1321         }
1322     }
1323
1324
1325     /**
1326      * {@inheritDoc}
1327      */
1328     @Override
1329     protected Dialog onCreateDialog(int id) {
1330         Dialog dialog = null;
1331         switch (id) {
1332         case DIALOG_LOGIN_PROGRESS: {
1333             /// simple progress dialog
1334             ProgressDialog working_dialog = new ProgressDialog(this);
1335             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1336             working_dialog.setIndeterminate(true);
1337             working_dialog.setCancelable(true);
1338             working_dialog
1339             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1340                 @Override
1341                 public void onCancel(DialogInterface dialog) {
1342                     /// TODO study if this is enough
1343                     Log_OC.i(TAG, "Login canceled");
1344                     if (mOperationThread != null) {
1345                         mOperationThread.interrupt();
1346                         finish();
1347                     }
1348                 }
1349             });
1350             dialog = working_dialog;
1351             break;
1352         }
1353         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1354             ProgressDialog working_dialog = new ProgressDialog(this);
1355             working_dialog.setMessage(String.format("Getting authorization"));
1356             working_dialog.setIndeterminate(true);
1357             working_dialog.setCancelable(true);
1358             working_dialog
1359             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1360                 @Override
1361                 public void onCancel(DialogInterface dialog) {
1362                     Log_OC.i(TAG, "Login canceled");
1363                     finish();
1364                 }
1365             });
1366             dialog = working_dialog;
1367             break;
1368         }
1369         case DIALOG_SSL_VALIDATOR: {
1370             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1371             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1372             break;
1373         }
1374         case DIALOG_CERT_NOT_SAVED: {
1375             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1376             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1377             builder.setCancelable(false);
1378             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1379                 @Override
1380                 public void onClick(DialogInterface dialog, int which) {
1381                     dialog.dismiss();
1382                 };
1383             });
1384             dialog = builder.create();
1385             break;
1386         }
1387         default:
1388             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1389         }
1390         return dialog;
1391     }
1392
1393
1394     /**
1395      * Starts and activity to open the 'new account' page in the ownCloud web site
1396      *
1397      * @param view      'Account register' button
1398      */
1399     public void onRegisterClick(View view) {
1400         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1401         setResult(RESULT_CANCELED);
1402         startActivity(register);
1403     }
1404
1405
1406     /**
1407      * Updates the content and visibility state of the icon and text associated
1408      * to the last check on the ownCloud server.
1409      */
1410     private void showServerStatus() {
1411         TextView tv = (TextView) findViewById(R.id.server_status_text);
1412
1413         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1414             tv.setVisibility(View.INVISIBLE);
1415
1416         } else {
1417             tv.setText(mServerStatusText);
1418             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1419             tv.setVisibility(View.VISIBLE);
1420         }
1421
1422     }
1423
1424
1425     /**
1426      * Updates the content and visibility state of the icon and text associated
1427      * to the interactions with the OAuth authorization server.
1428      */
1429     private void showAuthStatus() {
1430         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1431             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1432
1433         } else {
1434             mAuthStatusLayout.setText(mAuthStatusText);
1435             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1436             mAuthStatusLayout.setVisibility(View.VISIBLE);
1437         }
1438     }
1439
1440
1441     private void showRefreshButton() {
1442         mRefreshButton.setVisibility(View.VISIBLE);
1443     }
1444
1445     private void hideRefreshButton() {
1446         mRefreshButton.setVisibility(View.GONE);
1447     }
1448
1449     /**
1450      * Called when the refresh button in the input field for ownCloud host is clicked.
1451      *
1452      * Performs a new check on the URL in the input field.
1453      *
1454      * @param view      Refresh 'button'
1455      */
1456     public void onRefreshClick(View view) {
1457         checkOcServer();
1458     }
1459
1460
1461     /**
1462      * Called when the eye icon in the password field is clicked.
1463      *
1464      * Toggles the visibility of the password in the field.
1465      */
1466     public void onViewPasswordClick() {
1467         int selectionStart = mPasswordInput.getSelectionStart();
1468         int selectionEnd = mPasswordInput.getSelectionEnd();
1469         if (isPasswordVisible()) {
1470             hidePassword();
1471         } else {
1472             showPassword();
1473         }
1474         mPasswordInput.setSelection(selectionStart, selectionEnd);
1475     }
1476
1477
1478     /**
1479      * Called when the checkbox for OAuth authorization is clicked.
1480      *
1481      * Hides or shows the input fields for user & password.
1482      *
1483      * @param view      'View password' 'button'
1484      */
1485     public void onCheckClick(View view) {
1486         CheckBox oAuth2Check = (CheckBox)view;
1487         if (oAuth2Check.isChecked()) {
1488             mAuthTokenType = MainApp.getAuthTokenTypeAccessToken();
1489         } else {
1490             mAuthTokenType = MainApp.getAuthTokenTypePass();
1491         }
1492         adaptViewAccordingToAuthenticationMethod();
1493     }
1494
1495
1496     /**
1497      * Changes the visibility of input elements depending on
1498      * the current authorization method.
1499      */
1500     private void adaptViewAccordingToAuthenticationMethod () {
1501         if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
1502             // OAuth 2 authorization
1503             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1504             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1505             mUsernameInput.setVisibility(View.GONE);
1506             mPasswordInput.setVisibility(View.GONE);
1507
1508         } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
1509             // SAML-based web Single Sign On
1510             mOAuthAuthEndpointText.setVisibility(View.GONE);
1511             mOAuthTokenEndpointText.setVisibility(View.GONE);
1512             mUsernameInput.setVisibility(View.GONE);
1513             mPasswordInput.setVisibility(View.GONE);
1514         } else {
1515             // basic HTTP authorization
1516             mOAuthAuthEndpointText.setVisibility(View.GONE);
1517             mOAuthTokenEndpointText.setVisibility(View.GONE);
1518             mUsernameInput.setVisibility(View.VISIBLE);
1519             mPasswordInput.setVisibility(View.VISIBLE);
1520         }
1521     }
1522
1523     /**
1524      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1525      */
1526     public void onSavedCertificate() {
1527         checkOcServer();
1528     }
1529
1530     /**
1531      * Called from SslValidatorDialog when a new server certificate could not be saved
1532      * when the user requested it.
1533      */
1534     @Override
1535     public void onFailedSavingCertificate() {
1536         showDialog(DIALOG_CERT_NOT_SAVED);
1537     }
1538
1539
1540     /**
1541      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1542      *
1543      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1544      *  or to throw the server test when the only field on screen is the URL input field.
1545      */
1546     @Override
1547     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1548         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1549             if (mOkButton.isEnabled()) {
1550                 mOkButton.performClick();
1551             }
1552
1553         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1554             if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
1555                 checkOcServer();
1556             }
1557         }
1558         return false;   // always return false to grant that the software keyboard is hidden anyway
1559     }
1560
1561
1562     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1563
1564         private int fuzz = 75;
1565
1566         /**
1567          * {@inheritDoc}
1568          */
1569         @Override
1570         public boolean onTouch(View view, MotionEvent event) {
1571             Drawable rightDrawable = null;
1572             if (view instanceof TextView) {
1573                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1574                 if (drawables.length > 2) {
1575                     rightDrawable = drawables[2];
1576                 }
1577             }
1578             if (rightDrawable != null) {
1579                 final int x = (int) event.getX();
1580                 final int y = (int) event.getY();
1581                 final Rect bounds = rightDrawable.getBounds();
1582                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1583                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1584
1585                     return onDrawableTouch(event);
1586                 }
1587             }
1588             return false;
1589         }
1590
1591         public abstract boolean onDrawableTouch(final MotionEvent event);
1592     }
1593
1594
1595     public void onSamlDialogSuccess(String sessionCookie){
1596         mAuthToken = sessionCookie;
1597
1598         if (sessionCookie != null && sessionCookie.length() > 0) {
1599             mAuthToken = sessionCookie;
1600             boolean success = false;
1601             if (mAction == ACTION_CREATE) {
1602                 success = createAccount();
1603
1604             } else {
1605                 success = updateToken();
1606             }
1607             if (success) {
1608                 finish();
1609             }
1610         }
1611
1612
1613     }
1614
1615
1616     @Override
1617     public void onSsoFinished(String sessionCookies) {
1618         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1619
1620         if (sessionCookies != null && sessionCookies.length() > 0) {
1621             Log_OC.d(TAG, "Successful SSO - time to save the account");
1622             onSamlDialogSuccess(sessionCookies);
1623             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1624             if (fd != null && fd instanceof SherlockDialogFragment) {
1625                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1626                 if (d != null && d.isShowing()) {
1627                     d.dismiss();
1628                 }
1629             }
1630
1631         } else {
1632             // TODO - show fail
1633             Log_OC.d(TAG, "SSO failed");
1634         }
1635
1636     }
1637
1638     /** Show auth_message
1639      *
1640      * @param message
1641      */
1642     private void showAuthMessage(String message) {
1643        mAuthMessage.setVisibility(View.VISIBLE);
1644        mAuthMessage.setText(message);
1645     }
1646
1647     private void hideAuthMessage() {
1648         mAuthMessage.setVisibility(View.GONE);
1649     }
1650
1651     private void syncAccount(){
1652         /// immediately request for the synchronization of the new account
1653         Bundle bundle = new Bundle();
1654         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1655         ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1656     }
1657
1658     @Override
1659     public boolean onTouchEvent(MotionEvent event) {
1660         if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType) &&
1661                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1662             checkOcServer();
1663         }
1664         return super.onTouchEvent(event);
1665     }
1666 }