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