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