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
  53 import com.actionbarsherlock.app.SherlockDialogFragment;
  54 import com.owncloud.android.Log_OC;
  55 import com.owncloud.android.R;
  56 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  57 import com.owncloud.android.network.OwnCloudClientUtils;
  58 import com.owncloud.android.operations.ExistenceCheckOperation;
  59 import com.owncloud.android.operations.OAuth2GetAccessToken;
  60 import com.owncloud.android.operations.OnRemoteOperationListener;
  61 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  62 import com.owncloud.android.operations.RemoteOperation;
  63 import com.owncloud.android.operations.RemoteOperationResult;
  64 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  65 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  66 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  67 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  68 import com.owncloud.android.utils.OwnCloudVersion;
  69
  70 import eu.alefzero.webdav.WebdavClient;
  71
  72 /**
  73  * This Activity is used to add an ownCloud account to the App
  74  *
  75  * @author Bartek Przybylski
  76  * @author David A. Velasco
  77  */
  78 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  79 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  80
  81     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  82
  83     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  84     public static final String EXTRA_USER_NAME = "USER_NAME";
  85     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  86     public static final String EXTRA_ACTION = "ACTION";
  87     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  88
  89     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  90     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  91     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  92     private static final String KEY_OC_VERSION = "OC_VERSION";
  93     private static final String KEY_ACCOUNT = "ACCOUNT";
  94     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  95     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  96     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  97     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  98     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
  99     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 100     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 101     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 102     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 103     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 104
 105     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 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 static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 120
 121     private String mHostBaseUrl;
 122     private OwnCloudVersion mDiscoveredVersion;
 123
 124     private String mAuthMessageText;
 125     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 126     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 127     private int mAuthStatusText, mAuthStatusIcon;
 128     private TextView mAuthStatusLayout;
 129
 130     private final Handler mHandler = new Handler();
 131     private Thread mOperationThread;
 132     private OwnCloudServerCheckOperation mOcServerChkOperation;
 133     private ExistenceCheckOperation mAuthCheckOperation;
 134     private RemoteOperationResult mLastSslUntrustedServerResult;
 135
 136     private Uri mNewCapturedUriFromOAuth2Redirection;
 137
 138     private AccountManager mAccountMgr;
 139     private boolean mJustCreated;
 140     private byte mAction;
 141     private Account mAccount;
 142
 143     private TextView mAuthMessage;
 144
 145     private EditText mHostUrlInput;
 146     private boolean mHostUrlInputEnabled;
 147     private View mRefreshButton;
 148
 149     private String mAuthTokenType;
 150
 151     private EditText mUsernameInput;
 152     private EditText mPasswordInput;
 153
 154     private CheckBox mOAuth2Check;
 155
 156     private TextView mOAuthAuthEndpointText;
 157     private TextView mOAuthTokenEndpointText;
 158
 159     private SamlWebViewDialog mSamlDialog;
 160
 161     private View mOkButton;
 162
 163     private String mAuthToken;
 164
 165
 166     /**
 167      * {@inheritDoc}
 168      *
 169      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 170      */
 171     @Override
 172     protected void onCreate(Bundle savedInstanceState) {
 173         super.onCreate(savedInstanceState);
 174         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 175
 176         /// set view and get references to view elements
 177         setContentView(R.layout.account_setup);
 178         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 179         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 180         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 181         mUsernameInput = (EditText) findViewById(R.id.account_username);
 182         mPasswordInput = (EditText) findViewById(R.id.account_password);
 183         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 184         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 185         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 186         mOkButton = findViewById(R.id.buttonOK);
 187         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 188
 189         /// set Host Url Input Enabled
 190         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 191
 192
 193         /// complete label for 'register account' button
 194         Button b = (Button) findViewById(R.id.account_register);
 195         if (b != null) {
 196             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 197         }
 198
 199         /// initialization
 200         mAccountMgr = AccountManager.get(this);
 201         mNewCapturedUriFromOAuth2Redirection = null;
 202         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 203         mAccount = null;
 204         mHostBaseUrl = "";
 205         boolean refreshButtonEnabled = false;
 206
 207         // URL input configuration applied
 208         if (!mHostUrlInputEnabled)
 209         {
 210             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 211             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 212
 213         } else {
 214             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 215         }
 216
 217         if (savedInstanceState == null) {
 218             /// connection state and info
 219             mAuthMessageVisibility = View.GONE;
 220             mServerStatusText = mServerStatusIcon = 0;
 221             mServerIsValid = false;
 222             mServerIsChecked = false;
 223             mIsSslConn = false;
 224             mAuthStatusText = mAuthStatusIcon = 0;
 225
 226             /// retrieve extras from intent
 227             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 228             if (mAccount != null) {
 229                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 230                 if (ocVersion != null) {
 231                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 232                 }
 233                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 234                 mHostUrlInput.setText(mHostBaseUrl);
 235                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 236                 mUsernameInput.setText(userName);
 237             }
 238             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 239             mJustCreated = true;
 240
 241             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 242                 checkOcServer();
 243             }
 244
 245         } else {
 246             /// connection state and info
 247             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 248             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 249             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 250             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 251             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 252             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 253             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 254             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 255             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 256             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 257                 showPassword();
 258             }
 259
 260             /// server data
 261             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 262             if (ocVersion != null) {
 263                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 264             }
 265             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 266
 267             // account data, if updating
 268             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 269             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 270             if (mAuthTokenType == null) {
 271                 mAuthTokenType =  AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 272
 273             }
 274
 275             // check if server check was interrupted by a configuration change
 276             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 277                 checkOcServer();
 278             }
 279
 280             // refresh button enabled
 281             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 282
 283
 284         }
 285
 286         if (mAuthMessageVisibility== View.VISIBLE) {
 287             showAuthMessage(mAuthMessageText);
 288         }
 289         else {
 290             hideAuthMessage();
 291         }
 292         adaptViewAccordingToAuthenticationMethod();
 293         showServerStatus();
 294         showAuthStatus();
 295
 296         if (mAction == ACTION_UPDATE_TOKEN) {
 297             /// lock things that should not change
 298             mHostUrlInput.setEnabled(false);
 299             mHostUrlInput.setFocusable(false);
 300             mUsernameInput.setEnabled(false);
 301             mUsernameInput.setFocusable(false);
 302             mOAuth2Check.setVisibility(View.GONE);
 303         }
 304
 305         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 306         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 307         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 308
 309         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) ||
 310                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 311             mOAuth2Check.setVisibility(View.GONE);
 312         }
 313
 314         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 315
 316         /// bind view elements to listeners and other friends
 317         mHostUrlInput.setOnFocusChangeListener(this);
 318         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 319         mHostUrlInput.setOnEditorActionListener(this);
 320         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 321
 322             @Override
 323             public void afterTextChanged(Editable s) {
 324                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 325                     mOkButton.setEnabled(false);
 326                 }
 327             }
 328
 329             @Override
 330             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 331
 332             @Override
 333             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 334
 335         });
 336         mPasswordInput.setOnFocusChangeListener(this);
 337         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 338         mPasswordInput.setOnEditorActionListener(this);
 339         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 340             @Override
 341             public boolean onDrawableTouch(final MotionEvent event) {
 342                 if (event.getAction() == MotionEvent.ACTION_UP) {
 343                     AuthenticatorActivity.this.onViewPasswordClick();
 344                 }
 345                 return true;
 346             }
 347         });
 348
 349         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 350             @Override
 351             public boolean onTouch(View view, MotionEvent event) {
 352                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 353                     if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
 354                             mHostUrlInput.hasFocus()) {
 355                         checkOcServer();
 356                     }
 357                 }
 358                 return false;
 359             }
 360         });
 361     }
 362
 363
 364
 365     private void initAuthorizationMethod() {
 366         boolean oAuthRequired = false;
 367         boolean samlWebSsoRequired = false;
 368
 369         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 370         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 371
 372         // TODO could be a good moment to validate the received token type, if not null
 373
 374         if (mAuthTokenType == null) {
 375             if (mAccount != null) {
 376                 /// same authentication method than the one used to create the account to update
 377                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 378                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 379
 380             } else {
 381                 /// use the one set in setup.xml
 382                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 383                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 384             }
 385             if (oAuthRequired) {
 386                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
 387             } else if (samlWebSsoRequired) {
 388                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE;
 389             } else {
 390                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 391             }
 392         }
 393
 394         if (mAccount != null) {
 395             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 396             mUsernameInput.setText(userName);
 397         }
 398
 399         mOAuth2Check.setChecked(AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType));
 400
 401     }
 402
 403     /**
 404      * Saves relevant state before {@link #onPause()}
 405      *
 406      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 407      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 408      *
 409      * See {@link #loadSavedInstanceState(Bundle)}
 410      */
 411     @Override
 412     protected void onSaveInstanceState(Bundle outState) {
 413         super.onSaveInstanceState(outState);
 414
 415         /// connection state and info
 416         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 417         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 418         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 419         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 420         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 421         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 422         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 423         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 424         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 425         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 426         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 427
 428         /// server data
 429         if (mDiscoveredVersion != null) {
 430             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 431         }
 432         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 433
 434         /// account data, if updating
 435         if (mAccount != null) {
 436             outState.putParcelable(KEY_ACCOUNT, mAccount);
 437         }
 438         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 439
 440         // refresh button enabled
 441         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 442
 443
 444     }
 445
 446
 447     /**
 448      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 449      * is caught here.
 450      *
 451      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 452      * AndroidManifest.xml file.
 453      */
 454     @Override
 455     protected void onNewIntent (Intent intent) {
 456         Log_OC.d(TAG, "onNewIntent()");
 457         Uri data = intent.getData();
 458         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 459             mNewCapturedUriFromOAuth2Redirection = data;
 460         }
 461     }
 462
 463
 464     /**
 465      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 466      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 467      */
 468     @Override
 469     protected void onResume() {
 470         super.onResume();
 471         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 472             if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
 473                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 474                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 475             } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 476                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 477                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 478             } else {
 479                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 480                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 481             }
 482         }
 483
 484         if (mNewCapturedUriFromOAuth2Redirection != null) {
 485             getOAuth2AccessTokenFromCapturedRedirection();
 486         }
 487
 488         mJustCreated = false;
 489
 490     }
 491
 492
 493     /**
 494      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 495      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 496      */
 497     private void getOAuth2AccessTokenFromCapturedRedirection() {
 498         /// Parse data from OAuth redirection
 499         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 500         mNewCapturedUriFromOAuth2Redirection = null;
 501
 502         /// Showing the dialog with instructions for the user.
 503         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 504
 505         /// GET ACCESS TOKEN to the oAuth server
 506         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 507                 getString(R.string.oauth2_redirect_uri),
 508                 getString(R.string.oauth2_grant_type),
 509                 queryParameters);
 510         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 511         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 512         operation.execute(client, this, mHandler);
 513     }
 514
 515
 516
 517     /**
 518      * Handles the change of focus on the text inputs for the server URL and the password
 519      */
 520     public void onFocusChange(View view, boolean hasFocus) {
 521         if (view.getId() == R.id.hostUrlInput) {
 522             if (!hasFocus) {
 523                 onUrlInputFocusLost((TextView) view);
 524             }
 525             else {
 526                 hideRefreshButton();
 527             }
 528
 529         } else if (view.getId() == R.id.account_password) {
 530             onPasswordFocusChanged((TextView) view, hasFocus);
 531         }
 532     }
 533
 534
 535     /**
 536      * Handles changes in focus on the text input for the server URL.
 537      *
 538      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 539      * other field. The operation to check the existence of the server in the entered URL is
 540      * started.
 541      *
 542      * When hasFocus:    user 'comes back' to write again the server URL.
 543      *
 544      * @param hostInput     TextView with the URL input field receiving the change of focus.
 545      */
 546     private void onUrlInputFocusLost(TextView hostInput) {
 547         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 548             checkOcServer();
 549         } else {
 550             mOkButton.setEnabled(mServerIsValid);
 551             if (!mServerIsValid) {
 552                 showRefreshButton();
 553             }
 554         }
 555     }
 556
 557
 558     private void checkOcServer() {
 559         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 560
 561         if (!mHostUrlInputEnabled){
 562             uri = getString(R.string.server_url);
 563         }
 564
 565         mServerIsValid = false;
 566         mServerIsChecked = false;
 567         mOkButton.setEnabled(false);
 568         mDiscoveredVersion = null;
 569         hideRefreshButton();
 570         if (uri.length() != 0) {
 571             mServerStatusText = R.string.auth_testing_connection;
 572             mServerStatusIcon = R.drawable.progress_small;
 573             showServerStatus();
 574             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 575             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 576             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 577         } else {
 578             mServerStatusText = 0;
 579             mServerStatusIcon = 0;
 580             showServerStatus();
 581         }
 582     }
 583
 584
 585     /**
 586      * Handles changes in focus on the text input for the password (basic authorization).
 587      *
 588      * When (hasFocus), the button to toggle password visibility is shown.
 589      *
 590      * When (!hasFocus), the button is made invisible and the password is hidden.
 591      *
 592      * @param passwordInput    TextView with the password input field receiving the change of focus.
 593      * @param hasFocus          'True' if focus is received, 'false' if is lost
 594      */
 595     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 596         if (hasFocus) {
 597             showViewPasswordButton();
 598         } else {
 599             hidePassword();
 600             hidePasswordButton();
 601         }
 602     }
 603
 604
 605     private void showViewPasswordButton() {
 606         //int drawable = android.R.drawable.ic_menu_view;
 607         int drawable = R.drawable.ic_view;
 608         if (isPasswordVisible()) {
 609             //drawable = android.R.drawable.ic_secure;
 610             drawable = R.drawable.ic_hide;
 611         }
 612         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 613     }
 614
 615     private boolean isPasswordVisible() {
 616         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 617     }
 618
 619     private void hidePasswordButton() {
 620         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 621     }
 622
 623     private void showPassword() {
 624         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 625         showViewPasswordButton();
 626     }
 627
 628     private void hidePassword() {
 629         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 630         showViewPasswordButton();
 631     }
 632
 633
 634     /**
 635      * Cancels the authenticator activity
 636      *
 637      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 638      *
 639      * This method is bound in the layout/acceoun_setup.xml resource file.
 640      *
 641      * @param view      Cancel button
 642      */
 643     public void onCancelClick(View view) {
 644         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 645         finish();
 646     }
 647
 648
 649
 650     /**
 651      * Checks the credentials of the user in the root of the ownCloud server
 652      * before creating a new local account.
 653      *
 654      * For basic authorization, a check of existence of the root folder is
 655      * performed.
 656      *
 657      * For OAuth, starts the flow to get an access token; the credentials test
 658      * is postponed until it is available.
 659      *
 660      * IMPORTANT ENTRY POINT 4
 661      *
 662      * @param view      OK button
 663      */
 664     public void onOkClick(View view) {
 665         // this check should be unnecessary
 666         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 667             mServerStatusIcon = R.drawable.common_error;
 668             mServerStatusText = R.string.auth_wtf_reenter_URL;
 669             showServerStatus();
 670             mOkButton.setEnabled(false);
 671             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 672             return;
 673         }
 674
 675         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
 676             startOauthorization();
 677         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 678             startSamlBasedFederatedSingleSignOnAuthorization();
 679         } else {
 680             checkBasicAuthorization();
 681         }
 682     }
 683
 684
 685     /**
 686      * Tests the credentials entered by the user performing a check of existence on
 687      * the root folder of the ownCloud server.
 688      */
 689     private void checkBasicAuthorization() {
 690         /// get the path to the root folder through WebDAV from the version server
 691         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 692
 693         /// get basic credentials entered by user
 694         String username = mUsernameInput.getText().toString();
 695         String password = mPasswordInput.getText().toString();
 696
 697         /// be gentle with the user
 698         showDialog(DIALOG_LOGIN_PROGRESS);
 699
 700         /// test credentials accessing the root folder
 701         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 702         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 703         client.setBasicCredentials(username, password);
 704         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 705     }
 706
 707
 708     /**
 709      * Starts the OAuth 'grant type' flow to get an access token, with
 710      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 711      */
 712     private void startOauthorization() {
 713         // be gentle with the user
 714         mAuthStatusIcon = R.drawable.progress_small;
 715         mAuthStatusText = R.string.oauth_login_connection;
 716         showAuthStatus();
 717
 718
 719         // GET AUTHORIZATION request
 720         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 721         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 722         Uri.Builder uriBuilder = uri.buildUpon();
 723         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 724         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 725         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 726         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 727         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 728         uri = uriBuilder.build();
 729         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 730         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 731         startActivity(i);
 732     }
 733
 734
 735     /**
 736      * Starts the Web Single Sign On flow to get access to the root folder
 737      * in the server.
 738      */
 739     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 740         // be gentle with the user
 741         mAuthStatusIcon = R.drawable.progress_small;
 742         mAuthStatusText = R.string.auth_connecting_auth_server;
 743         showAuthStatus();
 744         showDialog(DIALOG_LOGIN_PROGRESS);
 745
 746         /// get the path to the root folder through WebDAV from the version server
 747         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 748
 749         /// test credentials accessing the root folder
 750         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 751         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 752         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 753
 754     }
 755
 756     /**
 757      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 758      *
 759      * Dispatches the operation flow to the right method.
 760      */
 761     @Override
 762     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 763
 764         if (operation instanceof OwnCloudServerCheckOperation) {
 765             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 766
 767         } else if (operation instanceof OAuth2GetAccessToken) {
 768             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 769
 770         } else if (operation instanceof ExistenceCheckOperation)  {
 771             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 772                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 773
 774             } else {
 775                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 776             }
 777         }
 778     }
 779
 780
 781     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 782         try {
 783             dismissDialog(DIALOG_LOGIN_PROGRESS);
 784         } catch (IllegalArgumentException e) {
 785             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 786         }
 787
 788         if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 789             String url = result.getRedirectedLocation();
 790             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 791
 792             // Show dialog
 793             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 794             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 795
 796             mAuthStatusIcon = 0;
 797             mAuthStatusText = 0;
 798
 799         } else {
 800             mAuthStatusIcon = R.drawable.common_error;
 801             mAuthStatusText = R.string.auth_unsupported_auth_method;
 802
 803         }
 804         showAuthStatus();
 805     }
 806
 807
 808     /**
 809      * Processes the result of the server check performed when the user finishes the enter of the
 810      * server URL.
 811      *
 812      * @param operation     Server check performed.
 813      * @param result        Result of the check.
 814      */
 815     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 816         if (operation.equals(mOcServerChkOperation)) {
 817             /// save result state
 818             mServerIsChecked = true;
 819             mServerIsValid = result.isSuccess();
 820             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 821             mOcServerChkOperation = null;
 822
 823             /// update status icon and text
 824             if (mServerIsValid) {
 825                 hideRefreshButton();
 826             } else {
 827                 showRefreshButton();
 828             }
 829             updateServerStatusIconAndText(result);
 830             showServerStatus();
 831
 832             /// very special case (TODO: move to a common place for all the remote operations)
 833             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 834                 mLastSslUntrustedServerResult = result;
 835                 showDialog(DIALOG_SSL_VALIDATOR);
 836             }
 837
 838             /// retrieve discovered version and normalize server URL
 839             mDiscoveredVersion = operation.getDiscoveredVersion();
 840             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 841
 842             /// allow or not the user try to access the server
 843             mOkButton.setEnabled(mServerIsValid);
 844
 845         }   // else nothing ; only the last check operation is considered;
 846         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 847     }
 848
 849
 850     private String normalizeUrl(String url) {
 851         if (url != null && url.length() > 0) {
 852             url = url.trim();
 853             if (!url.toLowerCase().startsWith("http://") &&
 854                     !url.toLowerCase().startsWith("https://")) {
 855                 if (mIsSslConn) {
 856                     url = "https://" + url;
 857                 } else {
 858                     url = "http://" + url;
 859                 }
 860             }
 861
 862             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 863             url = trimUrlWebdav(url);
 864
 865             if (url.endsWith("/")) {
 866                 url = url.substring(0, url.length() - 1);
 867             }
 868
 869         }
 870         return (url != null ? url : "");
 871     }
 872
 873
 874     private String trimUrlWebdav(String url){
 875         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 876             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 877         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 878             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 879         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 880             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 881         }
 882         return (url != null ? url : "");
 883     }
 884
 885
 886     /**
 887      * Chooses the right icon and text to show to the user for the received operation result.
 888      *
 889      * @param result    Result of a remote operation performed in this activity
 890      */
 891     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 892         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 893
 894         switch (result.getCode()) {
 895         case OK_SSL:
 896             mServerStatusIcon = android.R.drawable.ic_secure;
 897             mServerStatusText = R.string.auth_secure_connection;
 898             break;
 899
 900         case OK_NO_SSL:
 901         case OK:
 902             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 903                 mServerStatusText = R.string.auth_connection_established;
 904                 mServerStatusIcon = R.drawable.ic_ok;
 905             } else {
 906                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 907                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 908             }
 909             break;
 910
 911         case NO_NETWORK_CONNECTION:
 912             mServerStatusIcon = R.drawable.no_network;
 913             mServerStatusText = R.string.auth_no_net_conn_title;
 914             break;
 915
 916         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 917             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 918             break;
 919         case BAD_OC_VERSION:
 920             mServerStatusText = R.string.auth_bad_oc_version_title;
 921             break;
 922         case WRONG_CONNECTION:
 923             mServerStatusText = R.string.auth_wrong_connection_title;
 924             break;
 925         case TIMEOUT:
 926             mServerStatusText = R.string.auth_timeout_title;
 927             break;
 928         case INCORRECT_ADDRESS:
 929             mServerStatusText = R.string.auth_incorrect_address_title;
 930             break;
 931         case SSL_ERROR:
 932             mServerStatusText = R.string.auth_ssl_general_error_title;
 933             break;
 934         case UNAUTHORIZED:
 935             mServerStatusText = R.string.auth_unauthorized;
 936             break;
 937         case HOST_NOT_AVAILABLE:
 938             mServerStatusText = R.string.auth_unknown_host_title;
 939             break;
 940         case INSTANCE_NOT_CONFIGURED:
 941             mServerStatusText = R.string.auth_not_configured_title;
 942             break;
 943         case FILE_NOT_FOUND:
 944             mServerStatusText = R.string.auth_incorrect_path_title;
 945             break;
 946         case OAUTH2_ERROR:
 947             mServerStatusText = R.string.auth_oauth_error;
 948             break;
 949         case OAUTH2_ERROR_ACCESS_DENIED:
 950             mServerStatusText = R.string.auth_oauth_error_access_denied;
 951             break;
 952         case UNHANDLED_HTTP_CODE:
 953         case UNKNOWN_ERROR:
 954             mServerStatusText = R.string.auth_unknown_error_title;
 955             break;
 956         default:
 957             mServerStatusText = 0;
 958             mServerStatusIcon = 0;
 959         }
 960     }
 961
 962
 963     /**
 964      * Chooses the right icon and text to show to the user for the received operation result.
 965      *
 966      * @param result    Result of a remote operation performed in this activity
 967      */
 968     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 969         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 970
 971         switch (result.getCode()) {
 972         case OK_SSL:
 973             mAuthStatusIcon = android.R.drawable.ic_secure;
 974             mAuthStatusText = R.string.auth_secure_connection;
 975             break;
 976
 977         case OK_NO_SSL:
 978         case OK:
 979             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 980                 mAuthStatusText = R.string.auth_connection_established;
 981                 mAuthStatusIcon = R.drawable.ic_ok;
 982             } else {
 983                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 984                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 985             }
 986             break;
 987
 988         case NO_NETWORK_CONNECTION:
 989             mAuthStatusIcon = R.drawable.no_network;
 990             mAuthStatusText = R.string.auth_no_net_conn_title;
 991             break;
 992
 993         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 994             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
 995             break;
 996         case BAD_OC_VERSION:
 997             mAuthStatusText = R.string.auth_bad_oc_version_title;
 998             break;
 999         case WRONG_CONNECTION:
1000             mAuthStatusText = R.string.auth_wrong_connection_title;
1001             break;
1002         case TIMEOUT:
1003             mAuthStatusText = R.string.auth_timeout_title;
1004             break;
1005         case INCORRECT_ADDRESS:
1006             mAuthStatusText = R.string.auth_incorrect_address_title;
1007             break;
1008         case SSL_ERROR:
1009             mAuthStatusText = R.string.auth_ssl_general_error_title;
1010             break;
1011         case UNAUTHORIZED:
1012             mAuthStatusText = R.string.auth_unauthorized;
1013             break;
1014         case HOST_NOT_AVAILABLE:
1015             mAuthStatusText = R.string.auth_unknown_host_title;
1016             break;
1017         case INSTANCE_NOT_CONFIGURED:
1018             mAuthStatusText = R.string.auth_not_configured_title;
1019             break;
1020         case FILE_NOT_FOUND:
1021             mAuthStatusText = R.string.auth_incorrect_path_title;
1022             break;
1023         case OAUTH2_ERROR:
1024             mAuthStatusText = R.string.auth_oauth_error;
1025             break;
1026         case OAUTH2_ERROR_ACCESS_DENIED:
1027             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1028             break;
1029         case ACCOUNT_NOT_NEW:
1030             mAuthStatusText = R.string.auth_account_not_new;
1031             break;
1032         case ACCOUNT_NOT_THE_SAME:
1033             mAuthStatusText = R.string.auth_account_not_the_same;
1034             break;
1035         case UNHANDLED_HTTP_CODE:
1036         case UNKNOWN_ERROR:
1037             mAuthStatusText = R.string.auth_unknown_error_title;
1038             break;
1039         default:
1040             mAuthStatusText = 0;
1041             mAuthStatusIcon = 0;
1042         }
1043     }
1044
1045
1046     /**
1047      * Processes the result of the request for and access token send
1048      * to an OAuth authorization server.
1049      *
1050      * @param operation     Operation performed requesting the access token.
1051      * @param result        Result of the operation.
1052      */
1053     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1054         try {
1055             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1056         } catch (IllegalArgumentException e) {
1057             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1058         }
1059
1060         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1061         if (result.isSuccess() && webdav_path != null) {
1062             /// be gentle with the user
1063             showDialog(DIALOG_LOGIN_PROGRESS);
1064
1065             /// time to test the retrieved access token on the ownCloud server
1066             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1067             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1068             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1069             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1070             client.setBearerCredentials(mAuthToken);
1071             mAuthCheckOperation.execute(client, this, mHandler);
1072
1073         } else {
1074             updateAuthStatusIconAndText(result);
1075             showAuthStatus();
1076             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1077         }
1078     }
1079
1080
1081     /**
1082      * Processes the result of the access check performed to try the user credentials.
1083      *
1084      * Creates a new account through the AccountManager.
1085      *
1086      * @param operation     Access check performed.
1087      * @param result        Result of the operation.
1088      */
1089     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1090         try {
1091             dismissDialog(DIALOG_LOGIN_PROGRESS);
1092         } catch (IllegalArgumentException e) {
1093             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1094         }
1095
1096         if (result.isSuccess()) {
1097             Log_OC.d(TAG, "Successful access - time to save the account");
1098
1099             boolean success = false;
1100             if (mAction == ACTION_CREATE) {
1101                 success = createAccount();
1102
1103             } else {
1104                 success = updateToken();
1105             }
1106
1107             if (success) {
1108                 finish();
1109             }
1110
1111         } else if (result.isServerFail() || result.isException()) {
1112             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1113             mServerIsChecked = true;
1114             mServerIsValid = false;
1115             mIsSslConn = false;
1116             mOcServerChkOperation = null;
1117             mDiscoveredVersion = null;
1118             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1119
1120             // update status icon and text
1121             updateServerStatusIconAndText(result);
1122             showServerStatus();
1123             mAuthStatusIcon = 0;
1124             mAuthStatusText = 0;
1125             showAuthStatus();
1126
1127             // update input controls state
1128             showRefreshButton();
1129             mOkButton.setEnabled(false);
1130
1131             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1132             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1133                 mLastSslUntrustedServerResult = result;
1134                 showDialog(DIALOG_SSL_VALIDATOR);
1135             }
1136
1137         } else {    // authorization fail due to client side - probably wrong credentials
1138             updateAuthStatusIconAndText(result);
1139             showAuthStatus();
1140             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1141         }
1142
1143     }
1144
1145
1146     /**
1147      * Sets the proper response to get that the Account Authenticator that started this activity saves
1148      * a new authorization token for mAccount.
1149      */
1150     private boolean updateToken() {
1151         Bundle response = new Bundle();
1152         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1153         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1154
1155         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1156             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1157             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1158             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1159
1160         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1161             String username = getUserNameForSamlSso();
1162             if (!mUsernameInput.getText().toString().equals(username)) {
1163                 // fail - not a new account, but an existing one; disallow
1164                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1165                 updateAuthStatusIconAndText(result);
1166                 showAuthStatus();
1167                 Log_OC.d(TAG, result.getLogMessage());
1168
1169                 return false;
1170             }
1171
1172             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1173             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1174             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1175
1176         } else {
1177             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1178             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1179         }
1180         setAccountAuthenticatorResult(response);
1181
1182         return true;
1183     }
1184
1185
1186     /**
1187      * Creates a new account through the Account Authenticator that started this activity.
1188      *
1189      * This makes the account permanent.
1190      *
1191      * TODO Decide how to name the OAuth accounts
1192      */
1193     private boolean createAccount() {
1194         /// create and save new ownCloud account
1195         boolean isOAuth = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType);
1196         boolean isSaml =  AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType);
1197
1198         Uri uri = Uri.parse(mHostBaseUrl);
1199         String username = mUsernameInput.getText().toString().trim();
1200         if (isSaml) {
1201             username = getUserNameForSamlSso();
1202
1203         } else if (isOAuth) {
1204             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1205         }
1206         String accountName = username + "@" + uri.getHost();
1207         if (uri.getPort() >= 0) {
1208             accountName += ":" + uri.getPort();
1209         }
1210         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1211         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1212             // fail - not a new account, but an existing one; disallow
1213             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1214             updateAuthStatusIconAndText(result);
1215             showAuthStatus();
1216             Log_OC.d(TAG, result.getLogMessage());
1217             return false;
1218
1219         } else {
1220
1221             if (isOAuth || isSaml) {
1222                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1223             } else {
1224                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1225             }
1226
1227             /// add the new account as default in preferences, if there is none already
1228             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1229             if (defaultAccount == null) {
1230                 SharedPreferences.Editor editor = PreferenceManager
1231                         .getDefaultSharedPreferences(this).edit();
1232                 editor.putString("select_oc_account", accountName);
1233                 editor.commit();
1234             }
1235
1236             /// prepare result to return to the Authenticator
1237             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1238             final Intent intent = new Intent();
1239             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1240             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1241             /*if (!isOAuth)
1242                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); */
1243             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1244             if (isOAuth || isSaml) {
1245                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1246             }
1247             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1248             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1249             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1250             if (isSaml) {
1251                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1252             } else if (isOAuth) {
1253                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1254             }
1255
1256             setAccountAuthenticatorResult(intent.getExtras());
1257             setResult(RESULT_OK, intent);
1258
1259             /// immediately request for the synchronization of the new account
1260             Bundle bundle = new Bundle();
1261             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1262             ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1263             syncAccount();
1264 //          Bundle bundle = new Bundle();
1265 //          bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1266 //          ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1267             return true;
1268         }
1269     }
1270
1271
1272     private String getUserNameForSamlSso() {
1273         if (mAuthToken != null) {
1274             String [] cookies = mAuthToken.split(";");
1275             for (int i=0; i<cookies.length; i++) {
1276                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1277                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1278                     return value;
1279                 }
1280             }
1281         }
1282         return "";
1283     }
1284
1285
1286     /**
1287      * {@inheritDoc}
1288      *
1289      * Necessary to update the contents of the SSL Dialog
1290      *
1291      * TODO move to some common place for all possible untrusted SSL failures
1292      */
1293     @Override
1294     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1295         switch (id) {
1296         case DIALOG_LOGIN_PROGRESS:
1297         case DIALOG_CERT_NOT_SAVED:
1298         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1299             break;
1300         case DIALOG_SSL_VALIDATOR: {
1301             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1302             break;
1303         }
1304         default:
1305             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1306         }
1307     }
1308
1309
1310     /**
1311      * {@inheritDoc}
1312      */
1313     @Override
1314     protected Dialog onCreateDialog(int id) {
1315         Dialog dialog = null;
1316         switch (id) {
1317         case DIALOG_LOGIN_PROGRESS: {
1318             /// simple progress dialog
1319             ProgressDialog working_dialog = new ProgressDialog(this);
1320             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1321             working_dialog.setIndeterminate(true);
1322             working_dialog.setCancelable(true);
1323             working_dialog
1324             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1325                 @Override
1326                 public void onCancel(DialogInterface dialog) {
1327                     /// TODO study if this is enough
1328                     Log_OC.i(TAG, "Login canceled");
1329                     if (mOperationThread != null) {
1330                         mOperationThread.interrupt();
1331                         finish();
1332                     }
1333                 }
1334             });
1335             dialog = working_dialog;
1336             break;
1337         }
1338         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1339             ProgressDialog working_dialog = new ProgressDialog(this);
1340             working_dialog.setMessage(String.format("Getting authorization"));
1341             working_dialog.setIndeterminate(true);
1342             working_dialog.setCancelable(true);
1343             working_dialog
1344             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1345                 @Override
1346                 public void onCancel(DialogInterface dialog) {
1347                     Log_OC.i(TAG, "Login canceled");
1348                     finish();
1349                 }
1350             });
1351             dialog = working_dialog;
1352             break;
1353         }
1354         case DIALOG_SSL_VALIDATOR: {
1355             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1356             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1357             break;
1358         }
1359         case DIALOG_CERT_NOT_SAVED: {
1360             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1361             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1362             builder.setCancelable(false);
1363             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1364                 @Override
1365                 public void onClick(DialogInterface dialog, int which) {
1366                     dialog.dismiss();
1367                 };
1368             });
1369             dialog = builder.create();
1370             break;
1371         }
1372         default:
1373             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1374         }
1375         return dialog;
1376     }
1377
1378
1379     /**
1380      * Starts and activity to open the 'new account' page in the ownCloud web site
1381      *
1382      * @param view      'Account register' button
1383      */
1384     public void onRegisterClick(View view) {
1385         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1386         setResult(RESULT_CANCELED);
1387         startActivity(register);
1388     }
1389
1390
1391     /**
1392      * Updates the content and visibility state of the icon and text associated
1393      * to the last check on the ownCloud server.
1394      */
1395     private void showServerStatus() {
1396         TextView tv = (TextView) findViewById(R.id.server_status_text);
1397
1398         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1399             tv.setVisibility(View.INVISIBLE);
1400
1401         } else {
1402             tv.setText(mServerStatusText);
1403             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1404             tv.setVisibility(View.VISIBLE);
1405         }
1406
1407     }
1408
1409
1410     /**
1411      * Updates the content and visibility state of the icon and text associated
1412      * to the interactions with the OAuth authorization server.
1413      */
1414     private void showAuthStatus() {
1415         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1416             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1417
1418         } else {
1419             mAuthStatusLayout.setText(mAuthStatusText);
1420             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1421             mAuthStatusLayout.setVisibility(View.VISIBLE);
1422         }
1423     }
1424
1425
1426     private void showRefreshButton() {
1427         mRefreshButton.setVisibility(View.VISIBLE);
1428     }
1429
1430     private void hideRefreshButton() {
1431         mRefreshButton.setVisibility(View.GONE);
1432     }
1433
1434     /**
1435      * Called when the refresh button in the input field for ownCloud host is clicked.
1436      *
1437      * Performs a new check on the URL in the input field.
1438      *
1439      * @param view      Refresh 'button'
1440      */
1441     public void onRefreshClick(View view) {
1442         checkOcServer();
1443     }
1444
1445
1446     /**
1447      * Called when the eye icon in the password field is clicked.
1448      *
1449      * Toggles the visibility of the password in the field.
1450      */
1451     public void onViewPasswordClick() {
1452         int selectionStart = mPasswordInput.getSelectionStart();
1453         int selectionEnd = mPasswordInput.getSelectionEnd();
1454         if (isPasswordVisible()) {
1455             hidePassword();
1456         } else {
1457             showPassword();
1458         }
1459         mPasswordInput.setSelection(selectionStart, selectionEnd);
1460     }
1461
1462
1463     /**
1464      * Called when the checkbox for OAuth authorization is clicked.
1465      *
1466      * Hides or shows the input fields for user & password.
1467      *
1468      * @param view      'View password' 'button'
1469      */
1470     public void onCheckClick(View view) {
1471         CheckBox oAuth2Check = (CheckBox)view;
1472         if (oAuth2Check.isChecked()) {
1473             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
1474         } else {
1475             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
1476         }
1477         adaptViewAccordingToAuthenticationMethod();
1478     }
1479
1480
1481     /**
1482      * Changes the visibility of input elements depending on
1483      * the current authorization method.
1484      */
1485     private void adaptViewAccordingToAuthenticationMethod () {
1486         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1487             // OAuth 2 authorization
1488             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1489             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1490             mUsernameInput.setVisibility(View.GONE);
1491             mPasswordInput.setVisibility(View.GONE);
1492
1493         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1494             // SAML-based web Single Sign On
1495             mOAuthAuthEndpointText.setVisibility(View.GONE);
1496             mOAuthTokenEndpointText.setVisibility(View.GONE);
1497             mUsernameInput.setVisibility(View.GONE);
1498             mPasswordInput.setVisibility(View.GONE);
1499         } else {
1500             // basic HTTP authorization
1501             mOAuthAuthEndpointText.setVisibility(View.GONE);
1502             mOAuthTokenEndpointText.setVisibility(View.GONE);
1503             mUsernameInput.setVisibility(View.VISIBLE);
1504             mPasswordInput.setVisibility(View.VISIBLE);
1505         }
1506     }
1507
1508     /**
1509      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1510      */
1511     public void onSavedCertificate() {
1512         checkOcServer();
1513     }
1514
1515     /**
1516      * Called from SslValidatorDialog when a new server certificate could not be saved
1517      * when the user requested it.
1518      */
1519     @Override
1520     public void onFailedSavingCertificate() {
1521         showDialog(DIALOG_CERT_NOT_SAVED);
1522     }
1523
1524
1525     /**
1526      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1527      *
1528      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1529      *  or to throw the server test when the only field on screen is the URL input field.
1530      */
1531     @Override
1532     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1533         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1534             if (mOkButton.isEnabled()) {
1535                 mOkButton.performClick();
1536             }
1537
1538         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1539             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1540                 checkOcServer();
1541             }
1542         }
1543         return false;   // always return false to grant that the software keyboard is hidden anyway
1544     }
1545
1546
1547     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1548
1549         private int fuzz = 75;
1550
1551         /**
1552          * {@inheritDoc}
1553          */
1554         @Override
1555         public boolean onTouch(View view, MotionEvent event) {
1556             Drawable rightDrawable = null;
1557             if (view instanceof TextView) {
1558                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1559                 if (drawables.length > 2) {
1560                     rightDrawable = drawables[2];
1561                 }
1562             }
1563             if (rightDrawable != null) {
1564                 final int x = (int) event.getX();
1565                 final int y = (int) event.getY();
1566                 final Rect bounds = rightDrawable.getBounds();
1567                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1568                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1569
1570                     return onDrawableTouch(event);
1571                 }
1572             }
1573             return false;
1574         }
1575
1576         public abstract boolean onDrawableTouch(final MotionEvent event);
1577     }
1578
1579
1580     public void onSamlDialogSuccess(String sessionCookie){
1581         mAuthToken = sessionCookie;
1582
1583         if (sessionCookie != null && sessionCookie.length() > 0) {
1584             mAuthToken = sessionCookie;
1585             boolean success = false;
1586             if (mAction == ACTION_CREATE) {
1587                 success = createAccount();
1588
1589             } else {
1590                 success = updateToken();
1591             }
1592             if (success) {
1593                 finish();
1594             }
1595         }
1596
1597
1598     }
1599
1600
1601     @Override
1602     public void onSsoFinished(String sessionCookies) {
1603         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1604
1605         if (sessionCookies != null && sessionCookies.length() > 0) {
1606             Log_OC.d(TAG, "Successful SSO - time to save the account");
1607             onSamlDialogSuccess(sessionCookies);
1608             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1609             if (fd != null && fd instanceof SherlockDialogFragment) {
1610                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1611                 if (d != null && d.isShowing()) {
1612                     d.dismiss();
1613                 }
1614             }
1615
1616         } else {
1617             // TODO - show fail
1618             Log_OC.d(TAG, "SSO failed");
1619         }
1620
1621     }
1622
1623     /** Show auth_message
1624      *
1625      * @param message
1626      */
1627     private void showAuthMessage(String message) {
1628        mAuthMessage.setVisibility(View.VISIBLE);
1629        mAuthMessage.setText(message);
1630     }
1631
1632     private void hideAuthMessage() {
1633         mAuthMessage.setVisibility(View.GONE);
1634     }
1635
1636     private void syncAccount(){
1637         /// immediately request for the synchronization of the new account
1638         Bundle bundle = new Bundle();
1639         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1640         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1641     }
1642
1643     @Override
1644     public boolean onTouchEvent(MotionEvent event) {
1645         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
1646                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1647             checkOcServer();
1648         }
1649         return super.onTouchEvent(event);
1650     }
1651 }