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.MainApp;
  56 import com.owncloud.android.R;
  57 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  58 import com.owncloud.android.network.OwnCloudClientUtils;
  59 import com.owncloud.android.operations.ExistenceCheckOperation;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61 import com.owncloud.android.operations.OnRemoteOperationListener;
  62 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  63 import com.owncloud.android.operations.RemoteOperation;
  64 import com.owncloud.android.operations.RemoteOperationResult;
  65 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  66 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  67 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  68 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  69 import com.owncloud.android.utils.OwnCloudVersion;
  70
  71 import eu.alefzero.webdav.WebdavClient;
  72
  73 /**
  74  * This Activity is used to add an ownCloud account to the App
  75  *
  76  * @author Bartek Przybylski
  77  * @author David A. Velasco
  78  */
  79 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  80 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  81
  82     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  83
  84     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  85     public static final String EXTRA_USER_NAME = "USER_NAME";
  86     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  87     public static final String EXTRA_ACTION = "ACTION";
  88     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  89
  90     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  91     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  92     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  93     private static final String KEY_OC_VERSION = "OC_VERSION";
  94     private static final String KEY_ACCOUNT = "ACCOUNT";
  95     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  96     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  97     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  98     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  99     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 100     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 101     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 102     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 103     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 104     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 105
 106     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 107
 108     private static final String AUTH_ON = "on";
 109     private static final String AUTH_OFF = "off";
 110     private static final String AUTH_OPTIONAL = "optional";
 111
 112     private static final int DIALOG_LOGIN_PROGRESS = 0;
 113     private static final int DIALOG_SSL_VALIDATOR = 1;
 114     private static final int DIALOG_CERT_NOT_SAVED = 2;
 115     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 116
 117     public static final byte ACTION_CREATE = 0;
 118     public static final byte ACTION_UPDATE_TOKEN = 1;
 119
 120     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 121
 122     private String mHostBaseUrl;
 123     private OwnCloudVersion mDiscoveredVersion;
 124
 125     private String mAuthMessageText;
 126     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 127     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 128     private int mAuthStatusText, mAuthStatusIcon;
 129     private TextView mAuthStatusLayout;
 130
 131     private final Handler mHandler = new Handler();
 132     private Thread mOperationThread;
 133     private OwnCloudServerCheckOperation mOcServerChkOperation;
 134     private ExistenceCheckOperation mAuthCheckOperation;
 135     private RemoteOperationResult mLastSslUntrustedServerResult;
 136
 137     private Uri mNewCapturedUriFromOAuth2Redirection;
 138
 139     private AccountManager mAccountMgr;
 140     private boolean mJustCreated;
 141     private byte mAction;
 142     private Account mAccount;
 143
 144     private TextView mAuthMessage;
 145
 146     private EditText mHostUrlInput;
 147     private boolean mHostUrlInputEnabled;
 148     private View mRefreshButton;
 149
 150     private String mAuthTokenType;
 151
 152     private EditText mUsernameInput;
 153     private EditText mPasswordInput;
 154
 155     private CheckBox mOAuth2Check;
 156
 157     private TextView mOAuthAuthEndpointText;
 158     private TextView mOAuthTokenEndpointText;
 159
 160     private SamlWebViewDialog mSamlDialog;
 161
 162     private View mOkButton;
 163
 164     private String mAuthToken;
 165
 166     private boolean mResumed; // Control if activity is resumed
 167
 168
 169     /**
 170      * {@inheritDoc}
 171      *
 172      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 173      */
 174     @Override
 175     protected void onCreate(Bundle savedInstanceState) {
 176         super.onCreate(savedInstanceState);
 177         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 178
 179         /// set view and get references to view elements
 180         setContentView(R.layout.account_setup);
 181         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 182         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 183         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 184         mUsernameInput = (EditText) findViewById(R.id.account_username);
 185         mPasswordInput = (EditText) findViewById(R.id.account_password);
 186         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 187         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 188         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 189         mOkButton = findViewById(R.id.buttonOK);
 190         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 191
 192         /// set Host Url Input Enabled
 193         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 194
 195
 196         /// complete label for 'register account' button
 197         Button b = (Button) findViewById(R.id.account_register);
 198         if (b != null) {
 199             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 200         }
 201
 202         /// initialization
 203         mAccountMgr = AccountManager.get(this);
 204         mNewCapturedUriFromOAuth2Redirection = null;
 205         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 206         mAccount = null;
 207         mHostBaseUrl = "";
 208         boolean refreshButtonEnabled = false;
 209
 210         // URL input configuration applied
 211         if (!mHostUrlInputEnabled)
 212         {
 213             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 214             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 215
 216         } else {
 217             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 218         }
 219
 220         if (savedInstanceState == null) {
 221             mResumed = false;
 222             /// connection state and info
 223             mAuthMessageVisibility = View.GONE;
 224             mServerStatusText = mServerStatusIcon = 0;
 225             mServerIsValid = false;
 226             mServerIsChecked = false;
 227             mIsSslConn = false;
 228             mAuthStatusText = mAuthStatusIcon = 0;
 229
 230             /// retrieve extras from intent
 231             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 232             if (mAccount != null) {
 233                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 234                 if (ocVersion != null) {
 235                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 236                 }
 237                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 238                 mHostUrlInput.setText(mHostBaseUrl);
 239                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 240                 mUsernameInput.setText(userName);
 241             }
 242             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 243             mJustCreated = true;
 244
 245             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 246                 checkOcServer();
 247             }
 248
 249         } else {
 250             mResumed = true;
 251             /// connection state and info
 252             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 253             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 254             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 255             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 256             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 257             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 258             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 259             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 260             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 261             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 262                 showPassword();
 263             }
 264
 265             /// server data
 266             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 267             if (ocVersion != null) {
 268                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 269             }
 270             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 271
 272             // account data, if updating
 273             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 274             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 275             if (mAuthTokenType == null) {
 276                 mAuthTokenType =  MainApp.getAuthTokenTypePass();
 277
 278             }
 279
 280             // check if server check was interrupted by a configuration change
 281             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 282                 checkOcServer();
 283             }
 284
 285             // refresh button enabled
 286             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 287
 288
 289         }
 290
 291         if (mAuthMessageVisibility== View.VISIBLE) {
 292             showAuthMessage(mAuthMessageText);
 293         }
 294         else {
 295             hideAuthMessage();
 296         }
 297         adaptViewAccordingToAuthenticationMethod();
 298         showServerStatus();
 299         showAuthStatus();
 300
 301         if (mAction == ACTION_UPDATE_TOKEN) {
 302             /// lock things that should not change
 303             mHostUrlInput.setEnabled(false);
 304             mHostUrlInput.setFocusable(false);
 305             mUsernameInput.setEnabled(false);
 306             mUsernameInput.setFocusable(false);
 307             mOAuth2Check.setVisibility(View.GONE);
 308         }
 309
 310         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 311         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 312         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 313
 314         if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType) ||
 315                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 316             mOAuth2Check.setVisibility(View.GONE);
 317         }
 318
 319         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 320
 321         /// bind view elements to listeners and other friends
 322         mHostUrlInput.setOnFocusChangeListener(this);
 323         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 324         mHostUrlInput.setOnEditorActionListener(this);
 325         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 326
 327             @Override
 328             public void afterTextChanged(Editable s) {
 329                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 330                     mOkButton.setEnabled(false);
 331                 }
 332             }
 333
 334             @Override
 335             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 336             }
 337
 338             @Override
 339             public void onTextChanged(CharSequence s, int start, int before, int count) {
 340                 if (!mResumed) {
 341                     mAuthStatusIcon = 0;
 342                     mAuthStatusText = 0;
 343                     showAuthStatus();
 344                 }
 345                 mResumed = false;
 346             }
 347         });
 348
 349         mPasswordInput.setOnFocusChangeListener(this);
 350         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 351         mPasswordInput.setOnEditorActionListener(this);
 352         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 353             @Override
 354             public boolean onDrawableTouch(final MotionEvent event) {
 355                 if (event.getAction() == MotionEvent.ACTION_UP) {
 356                     AuthenticatorActivity.this.onViewPasswordClick();
 357                 }
 358                 return true;
 359             }
 360         });
 361
 362         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 363             @Override
 364             public boolean onTouch(View view, MotionEvent event) {
 365                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 366                     if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType) &&
 367                             mHostUrlInput.hasFocus()) {
 368                         checkOcServer();
 369                     }
 370                 }
 371                 return false;
 372             }
 373         });
 374     }
 375
 376
 377
 378     private void initAuthorizationMethod() {
 379         boolean oAuthRequired = false;
 380         boolean samlWebSsoRequired = false;
 381
 382         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 383         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 384
 385         // TODO could be a good moment to validate the received token type, if not null
 386
 387         if (mAuthTokenType == null) {
 388             if (mAccount != null) {
 389                 /// same authentication method than the one used to create the account to update
 390                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 391                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 392
 393             } else {
 394                 /// use the one set in setup.xml
 395                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 396                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 397             }
 398             if (oAuthRequired) {
 399                 mAuthTokenType = MainApp.getAuthTokenTypeAccessToken();
 400             } else if (samlWebSsoRequired) {
 401                 mAuthTokenType = MainApp.getAuthTokenTypeSamlSessionCookie();
 402             } else {
 403                 mAuthTokenType = MainApp.getAuthTokenTypePass();
 404             }
 405         }
 406
 407         if (mAccount != null) {
 408             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 409             mUsernameInput.setText(userName);
 410         }
 411
 412         mOAuth2Check.setChecked(MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType));
 413
 414     }
 415
 416     /**
 417      * Saves relevant state before {@link #onPause()}
 418      *
 419      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 420      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 421      *
 422      * See {@link #loadSavedInstanceState(Bundle)}
 423      */
 424     @Override
 425     protected void onSaveInstanceState(Bundle outState) {
 426         super.onSaveInstanceState(outState);
 427
 428         /// connection state and info
 429         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 430         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 431         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 432         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 433         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 434         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 435         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 436         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 437         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 438         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 439         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 440
 441         /// server data
 442         if (mDiscoveredVersion != null) {
 443             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 444         }
 445         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 446
 447         /// account data, if updating
 448         if (mAccount != null) {
 449             outState.putParcelable(KEY_ACCOUNT, mAccount);
 450         }
 451         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 452
 453         // refresh button enabled
 454         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 455
 456
 457     }
 458
 459
 460     /**
 461      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 462      * is caught here.
 463      *
 464      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 465      * AndroidManifest.xml file.
 466      */
 467     @Override
 468     protected void onNewIntent (Intent intent) {
 469         Log_OC.d(TAG, "onNewIntent()");
 470         Uri data = intent.getData();
 471         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 472             mNewCapturedUriFromOAuth2Redirection = data;
 473         }
 474     }
 475
 476
 477     /**
 478      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 479      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 480      */
 481     @Override
 482     protected void onResume() {
 483         super.onResume();
 484         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 485             if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
 486                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 487                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 488             } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
 489                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 490                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 491             } else {
 492                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 493                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 494             }
 495         }
 496
 497         if (mNewCapturedUriFromOAuth2Redirection != null) {
 498             getOAuth2AccessTokenFromCapturedRedirection();
 499         }
 500
 501         mJustCreated = false;
 502
 503     }
 504
 505
 506     /**
 507      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 508      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 509      */
 510     private void getOAuth2AccessTokenFromCapturedRedirection() {
 511         /// Parse data from OAuth redirection
 512         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 513         mNewCapturedUriFromOAuth2Redirection = null;
 514
 515         /// Showing the dialog with instructions for the user.
 516         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 517
 518         /// GET ACCESS TOKEN to the oAuth server
 519         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 520                 getString(R.string.oauth2_redirect_uri),
 521                 getString(R.string.oauth2_grant_type),
 522                 queryParameters);
 523         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 524         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 525         operation.execute(client, this, mHandler);
 526     }
 527
 528
 529
 530     /**
 531      * Handles the change of focus on the text inputs for the server URL and the password
 532      */
 533     public void onFocusChange(View view, boolean hasFocus) {
 534         if (view.getId() == R.id.hostUrlInput) {
 535             if (!hasFocus) {
 536                 onUrlInputFocusLost((TextView) view);
 537             }
 538             else {
 539                 hideRefreshButton();
 540             }
 541
 542         } else if (view.getId() == R.id.account_password) {
 543             onPasswordFocusChanged((TextView) view, hasFocus);
 544         }
 545     }
 546
 547
 548     /**
 549      * Handles changes in focus on the text input for the server URL.
 550      *
 551      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 552      * other field. The operation to check the existence of the server in the entered URL is
 553      * started.
 554      *
 555      * When hasFocus:    user 'comes back' to write again the server URL.
 556      *
 557      * @param hostInput     TextView with the URL input field receiving the change of focus.
 558      */
 559     private void onUrlInputFocusLost(TextView hostInput) {
 560         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 561             checkOcServer();
 562         } else {
 563             mOkButton.setEnabled(mServerIsValid);
 564             if (!mServerIsValid) {
 565                 showRefreshButton();
 566             }
 567         }
 568     }
 569
 570
 571     private void checkOcServer() {
 572         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 573
 574         if (!mHostUrlInputEnabled){
 575             uri = getString(R.string.server_url);
 576         }
 577
 578         mServerIsValid = false;
 579         mServerIsChecked = false;
 580         mOkButton.setEnabled(false);
 581         mDiscoveredVersion = null;
 582         hideRefreshButton();
 583         if (uri.length() != 0) {
 584             mServerStatusText = R.string.auth_testing_connection;
 585             mServerStatusIcon = R.drawable.progress_small;
 586             showServerStatus();
 587             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 588             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 589             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 590         } else {
 591             mServerStatusText = 0;
 592             mServerStatusIcon = 0;
 593             showServerStatus();
 594         }
 595     }
 596
 597
 598     /**
 599      * Handles changes in focus on the text input for the password (basic authorization).
 600      *
 601      * When (hasFocus), the button to toggle password visibility is shown.
 602      *
 603      * When (!hasFocus), the button is made invisible and the password is hidden.
 604      *
 605      * @param passwordInput    TextView with the password input field receiving the change of focus.
 606      * @param hasFocus          'True' if focus is received, 'false' if is lost
 607      */
 608     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 609         if (hasFocus) {
 610             showViewPasswordButton();
 611         } else {
 612             hidePassword();
 613             hidePasswordButton();
 614         }
 615     }
 616
 617
 618     private void showViewPasswordButton() {
 619         //int drawable = android.R.drawable.ic_menu_view;
 620         int drawable = R.drawable.ic_view;
 621         if (isPasswordVisible()) {
 622             //drawable = android.R.drawable.ic_secure;
 623             drawable = R.drawable.ic_hide;
 624         }
 625         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 626     }
 627
 628     private boolean isPasswordVisible() {
 629         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 630     }
 631
 632     private void hidePasswordButton() {
 633         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 634     }
 635
 636     private void showPassword() {
 637         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 638         showViewPasswordButton();
 639     }
 640
 641     private void hidePassword() {
 642         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 643         showViewPasswordButton();
 644     }
 645
 646
 647     /**
 648      * Cancels the authenticator activity
 649      *
 650      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 651      *
 652      * This method is bound in the layout/acceoun_setup.xml resource file.
 653      *
 654      * @param view      Cancel button
 655      */
 656     public void onCancelClick(View view) {
 657         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 658         finish();
 659     }
 660
 661
 662
 663     /**
 664      * Checks the credentials of the user in the root of the ownCloud server
 665      * before creating a new local account.
 666      *
 667      * For basic authorization, a check of existence of the root folder is
 668      * performed.
 669      *
 670      * For OAuth, starts the flow to get an access token; the credentials test
 671      * is postponed until it is available.
 672      *
 673      * IMPORTANT ENTRY POINT 4
 674      *
 675      * @param view      OK button
 676      */
 677     public void onOkClick(View view) {
 678         // this check should be unnecessary
 679         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 680             mServerStatusIcon = R.drawable.common_error;
 681             mServerStatusText = R.string.auth_wtf_reenter_URL;
 682             showServerStatus();
 683             mOkButton.setEnabled(false);
 684             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 685             return;
 686         }
 687
 688         if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
 689             startOauthorization();
 690         } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
 691             startSamlBasedFederatedSingleSignOnAuthorization();
 692         } else {
 693             checkBasicAuthorization();
 694         }
 695     }
 696
 697
 698     /**
 699      * Tests the credentials entered by the user performing a check of existence on
 700      * the root folder of the ownCloud server.
 701      */
 702     private void checkBasicAuthorization() {
 703         /// get the path to the root folder through WebDAV from the version server
 704         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 705
 706         /// get basic credentials entered by user
 707         String username = mUsernameInput.getText().toString();
 708         String password = mPasswordInput.getText().toString();
 709
 710         /// be gentle with the user
 711         showDialog(DIALOG_LOGIN_PROGRESS);
 712
 713         /// test credentials accessing the root folder
 714         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 715         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 716         client.setBasicCredentials(username, password);
 717         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 718     }
 719
 720
 721     /**
 722      * Starts the OAuth 'grant type' flow to get an access token, with
 723      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 724      */
 725     private void startOauthorization() {
 726         // be gentle with the user
 727         mAuthStatusIcon = R.drawable.progress_small;
 728         mAuthStatusText = R.string.oauth_login_connection;
 729         showAuthStatus();
 730
 731
 732         // GET AUTHORIZATION request
 733         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 734         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 735         Uri.Builder uriBuilder = uri.buildUpon();
 736         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 737         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 738         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 739         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 740         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 741         uri = uriBuilder.build();
 742         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 743         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 744         startActivity(i);
 745     }
 746
 747
 748     /**
 749      * Starts the Web Single Sign On flow to get access to the root folder
 750      * in the server.
 751      */
 752     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 753         // be gentle with the user
 754         mAuthStatusIcon = R.drawable.progress_small;
 755         mAuthStatusText = R.string.auth_connecting_auth_server;
 756         showAuthStatus();
 757         showDialog(DIALOG_LOGIN_PROGRESS);
 758
 759         /// get the path to the root folder through WebDAV from the version server
 760         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 761
 762         /// test credentials accessing the root folder
 763         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 764         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 765         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 766
 767     }
 768
 769     /**
 770      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 771      *
 772      * Dispatches the operation flow to the right method.
 773      */
 774     @Override
 775     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 776
 777         if (operation instanceof OwnCloudServerCheckOperation) {
 778             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 779
 780         } else if (operation instanceof OAuth2GetAccessToken) {
 781             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 782
 783         } else if (operation instanceof ExistenceCheckOperation)  {
 784             if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
 785                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 786
 787             } else {
 788                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 789             }
 790         }
 791     }
 792
 793
 794     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 795         try {
 796             dismissDialog(DIALOG_LOGIN_PROGRESS);
 797         } catch (IllegalArgumentException e) {
 798             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 799         }
 800
 801         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 802         if (result.isIdPRedirection()) {
 803             String url = result.getRedirectedLocation();
 804             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 805
 806             // Show dialog
 807             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 808             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 809
 810             mAuthStatusIcon = 0;
 811             mAuthStatusText = 0;
 812
 813         } else {
 814             mAuthStatusIcon = R.drawable.common_error;
 815             mAuthStatusText = R.string.auth_unsupported_auth_method;
 816
 817         }
 818         showAuthStatus();
 819     }
 820
 821
 822     /**
 823      * Processes the result of the server check performed when the user finishes the enter of the
 824      * server URL.
 825      *
 826      * @param operation     Server check performed.
 827      * @param result        Result of the check.
 828      */
 829     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 830         if (operation.equals(mOcServerChkOperation)) {
 831             /// save result state
 832             mServerIsChecked = true;
 833             mServerIsValid = result.isSuccess();
 834             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 835             mOcServerChkOperation = null;
 836
 837             /// update status icon and text
 838             if (mServerIsValid) {
 839                 hideRefreshButton();
 840             } else {
 841                 showRefreshButton();
 842             }
 843             updateServerStatusIconAndText(result);
 844             showServerStatus();
 845
 846             /// very special case (TODO: move to a common place for all the remote operations)
 847             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 848                 mLastSslUntrustedServerResult = result;
 849                 showDialog(DIALOG_SSL_VALIDATOR);
 850             }
 851
 852             /// retrieve discovered version and normalize server URL
 853             mDiscoveredVersion = operation.getDiscoveredVersion();
 854             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 855
 856             /// allow or not the user try to access the server
 857             mOkButton.setEnabled(mServerIsValid);
 858
 859         }   // else nothing ; only the last check operation is considered;
 860         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 861     }
 862
 863
 864     private String normalizeUrl(String url) {
 865         if (url != null && url.length() > 0) {
 866             url = url.trim();
 867             if (!url.toLowerCase().startsWith("http://") &&
 868                     !url.toLowerCase().startsWith("https://")) {
 869                 if (mIsSslConn) {
 870                     url = "https://" + url;
 871                 } else {
 872                     url = "http://" + url;
 873                 }
 874             }
 875
 876             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 877             url = trimUrlWebdav(url);
 878
 879             if (url.endsWith("/")) {
 880                 url = url.substring(0, url.length() - 1);
 881             }
 882
 883         }
 884         return (url != null ? url : "");
 885     }
 886
 887
 888     private String trimUrlWebdav(String url){
 889         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 890             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 891         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 892             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 893         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 894             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 895         }
 896         return (url != null ? url : "");
 897     }
 898
 899
 900     /**
 901      * Chooses the right icon and text to show to the user for the received operation result.
 902      *
 903      * @param result    Result of a remote operation performed in this activity
 904      */
 905     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 906         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 907
 908         switch (result.getCode()) {
 909         case OK_SSL:
 910             mServerStatusIcon = android.R.drawable.ic_secure;
 911             mServerStatusText = R.string.auth_secure_connection;
 912             break;
 913
 914         case OK_NO_SSL:
 915         case OK:
 916             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 917                 mServerStatusText = R.string.auth_connection_established;
 918                 mServerStatusIcon = R.drawable.ic_ok;
 919             } else {
 920                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 921                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 922             }
 923             break;
 924
 925         case NO_NETWORK_CONNECTION:
 926             mServerStatusIcon = R.drawable.no_network;
 927             mServerStatusText = R.string.auth_no_net_conn_title;
 928             break;
 929
 930         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 931             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 932             break;
 933         case BAD_OC_VERSION:
 934             mServerStatusText = R.string.auth_bad_oc_version_title;
 935             break;
 936         case WRONG_CONNECTION:
 937             mServerStatusText = R.string.auth_wrong_connection_title;
 938             break;
 939         case TIMEOUT:
 940             mServerStatusText = R.string.auth_timeout_title;
 941             break;
 942         case INCORRECT_ADDRESS:
 943             mServerStatusText = R.string.auth_incorrect_address_title;
 944             break;
 945         case SSL_ERROR:
 946             mServerStatusText = R.string.auth_ssl_general_error_title;
 947             break;
 948         case UNAUTHORIZED:
 949             mServerStatusText = R.string.auth_unauthorized;
 950             break;
 951         case HOST_NOT_AVAILABLE:
 952             mServerStatusText = R.string.auth_unknown_host_title;
 953             break;
 954         case INSTANCE_NOT_CONFIGURED:
 955             mServerStatusText = R.string.auth_not_configured_title;
 956             break;
 957         case FILE_NOT_FOUND:
 958             mServerStatusText = R.string.auth_incorrect_path_title;
 959             break;
 960         case OAUTH2_ERROR:
 961             mServerStatusText = R.string.auth_oauth_error;
 962             break;
 963         case OAUTH2_ERROR_ACCESS_DENIED:
 964             mServerStatusText = R.string.auth_oauth_error_access_denied;
 965             break;
 966         case UNHANDLED_HTTP_CODE:
 967         case UNKNOWN_ERROR:
 968             mServerStatusText = R.string.auth_unknown_error_title;
 969             break;
 970         default:
 971             mServerStatusText = 0;
 972             mServerStatusIcon = 0;
 973         }
 974     }
 975
 976
 977     /**
 978      * Chooses the right icon and text to show to the user for the received operation result.
 979      *
 980      * @param result    Result of a remote operation performed in this activity
 981      */
 982     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 983         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 984
 985         switch (result.getCode()) {
 986         case OK_SSL:
 987             mAuthStatusIcon = android.R.drawable.ic_secure;
 988             mAuthStatusText = R.string.auth_secure_connection;
 989             break;
 990
 991         case OK_NO_SSL:
 992         case OK:
 993             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 994                 mAuthStatusText = R.string.auth_connection_established;
 995                 mAuthStatusIcon = R.drawable.ic_ok;
 996             } else {
 997                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 998                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 999             }
1000             break;
1001
1002         case NO_NETWORK_CONNECTION:
1003             mAuthStatusIcon = R.drawable.no_network;
1004             mAuthStatusText = R.string.auth_no_net_conn_title;
1005             break;
1006
1007         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1008             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1009             break;
1010         case BAD_OC_VERSION:
1011             mAuthStatusText = R.string.auth_bad_oc_version_title;
1012             break;
1013         case WRONG_CONNECTION:
1014             mAuthStatusText = R.string.auth_wrong_connection_title;
1015             break;
1016         case TIMEOUT:
1017             mAuthStatusText = R.string.auth_timeout_title;
1018             break;
1019         case INCORRECT_ADDRESS:
1020             mAuthStatusText = R.string.auth_incorrect_address_title;
1021             break;
1022         case SSL_ERROR:
1023             mAuthStatusText = R.string.auth_ssl_general_error_title;
1024             break;
1025         case UNAUTHORIZED:
1026             mAuthStatusText = R.string.auth_unauthorized;
1027             break;
1028         case HOST_NOT_AVAILABLE:
1029             mAuthStatusText = R.string.auth_unknown_host_title;
1030             break;
1031         case INSTANCE_NOT_CONFIGURED:
1032             mAuthStatusText = R.string.auth_not_configured_title;
1033             break;
1034         case FILE_NOT_FOUND:
1035             mAuthStatusText = R.string.auth_incorrect_path_title;
1036             break;
1037         case OAUTH2_ERROR:
1038             mAuthStatusText = R.string.auth_oauth_error;
1039             break;
1040         case OAUTH2_ERROR_ACCESS_DENIED:
1041             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1042             break;
1043         case ACCOUNT_NOT_NEW:
1044             mAuthStatusText = R.string.auth_account_not_new;
1045             break;
1046         case ACCOUNT_NOT_THE_SAME:
1047             mAuthStatusText = R.string.auth_account_not_the_same;
1048             break;
1049         case UNHANDLED_HTTP_CODE:
1050         case UNKNOWN_ERROR:
1051             mAuthStatusText = R.string.auth_unknown_error_title;
1052             break;
1053         default:
1054             mAuthStatusText = 0;
1055             mAuthStatusIcon = 0;
1056         }
1057     }
1058
1059
1060     /**
1061      * Processes the result of the request for and access token send
1062      * to an OAuth authorization server.
1063      *
1064      * @param operation     Operation performed requesting the access token.
1065      * @param result        Result of the operation.
1066      */
1067     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1068         try {
1069             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1070         } catch (IllegalArgumentException e) {
1071             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1072         }
1073
1074         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1075         if (result.isSuccess() && webdav_path != null) {
1076             /// be gentle with the user
1077             showDialog(DIALOG_LOGIN_PROGRESS);
1078
1079             /// time to test the retrieved access token on the ownCloud server
1080             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1081             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1082             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1083             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1084             client.setBearerCredentials(mAuthToken);
1085             mAuthCheckOperation.execute(client, this, mHandler);
1086
1087         } else {
1088             updateAuthStatusIconAndText(result);
1089             showAuthStatus();
1090             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1091         }
1092     }
1093
1094
1095     /**
1096      * Processes the result of the access check performed to try the user credentials.
1097      *
1098      * Creates a new account through the AccountManager.
1099      *
1100      * @param operation     Access check performed.
1101      * @param result        Result of the operation.
1102      */
1103     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1104         try {
1105             dismissDialog(DIALOG_LOGIN_PROGRESS);
1106         } catch (IllegalArgumentException e) {
1107             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1108         }
1109
1110         if (result.isSuccess()) {
1111             Log_OC.d(TAG, "Successful access - time to save the account");
1112
1113             boolean success = false;
1114             if (mAction == ACTION_CREATE) {
1115                 success = createAccount();
1116
1117             } else {
1118                 success = updateToken();
1119             }
1120
1121             if (success) {
1122                 finish();
1123             }
1124
1125         } else if (result.isServerFail() || result.isException()) {
1126             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1127             mServerIsChecked = true;
1128             mServerIsValid = false;
1129             mIsSslConn = false;
1130             mOcServerChkOperation = null;
1131             mDiscoveredVersion = null;
1132             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1133
1134             // update status icon and text
1135             updateServerStatusIconAndText(result);
1136             showServerStatus();
1137             mAuthStatusIcon = 0;
1138             mAuthStatusText = 0;
1139             showAuthStatus();
1140
1141             // update input controls state
1142             showRefreshButton();
1143             mOkButton.setEnabled(false);
1144
1145             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1146             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1147                 mLastSslUntrustedServerResult = result;
1148                 showDialog(DIALOG_SSL_VALIDATOR);
1149             }
1150
1151         } else {    // authorization fail due to client side - probably wrong credentials
1152             updateAuthStatusIconAndText(result);
1153             showAuthStatus();
1154             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1155         }
1156
1157     }
1158
1159
1160     /**
1161      * Sets the proper response to get that the Account Authenticator that started this activity saves
1162      * a new authorization token for mAccount.
1163      */
1164     private boolean updateToken() {
1165         Bundle response = new Bundle();
1166         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1167         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1168
1169         if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
1170             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1171             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1172             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1173
1174         } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
1175             String username = getUserNameForSamlSso();
1176             if (!mUsernameInput.getText().toString().equals(username)) {
1177                 // fail - not a new account, but an existing one; disallow
1178                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1179                 updateAuthStatusIconAndText(result);
1180                 showAuthStatus();
1181                 Log_OC.d(TAG, result.getLogMessage());
1182
1183                 return false;
1184             }
1185
1186             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1187             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1188             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1189
1190         } else {
1191             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1192             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1193         }
1194         setAccountAuthenticatorResult(response);
1195
1196         return true;
1197     }
1198
1199
1200     /**
1201      * Creates a new account through the Account Authenticator that started this activity.
1202      *
1203      * This makes the account permanent.
1204      *
1205      * TODO Decide how to name the OAuth accounts
1206      */
1207     private boolean createAccount() {
1208         /// create and save new ownCloud account
1209         boolean isOAuth = MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType);
1210         boolean isSaml =  MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType);
1211
1212         Uri uri = Uri.parse(mHostBaseUrl);
1213         String username = mUsernameInput.getText().toString().trim();
1214         if (isSaml) {
1215             username = getUserNameForSamlSso();
1216
1217         } else if (isOAuth) {
1218             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1219         }
1220         String accountName = username + "@" + uri.getHost();
1221         if (uri.getPort() >= 0) {
1222             accountName += ":" + uri.getPort();
1223         }
1224         mAccount = new Account(accountName, MainApp.getAccountType());
1225         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1226             // fail - not a new account, but an existing one; disallow
1227             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1228             updateAuthStatusIconAndText(result);
1229             showAuthStatus();
1230             Log_OC.d(TAG, result.getLogMessage());
1231             return false;
1232
1233         } else {
1234
1235             if (isOAuth || isSaml) {
1236                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1237             } else {
1238                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1239             }
1240
1241             /// add the new account as default in preferences, if there is none already
1242             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1243             if (defaultAccount == null) {
1244                 SharedPreferences.Editor editor = PreferenceManager
1245                         .getDefaultSharedPreferences(this).edit();
1246                 editor.putString("select_oc_account", accountName);
1247                 editor.commit();
1248             }
1249
1250             /// prepare result to return to the Authenticator
1251             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1252             final Intent intent = new Intent();
1253             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1254             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1255             /*if (!isOAuth)
1256                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1257             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1258             if (isOAuth || isSaml) {
1259                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1260             }
1261             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1262             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1263             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1264             if (isSaml) {
1265                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1266             } else if (isOAuth) {
1267                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1268             }
1269
1270             setAccountAuthenticatorResult(intent.getExtras());
1271             setResult(RESULT_OK, intent);
1272
1273             /// immediately request for the synchronization of the new account
1274             Bundle bundle = new Bundle();
1275             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1276             ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1277             syncAccount();
1278 //          Bundle bundle = new Bundle();
1279 //          bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1280 //          ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1281             return true;
1282         }
1283     }
1284
1285
1286     private String getUserNameForSamlSso() {
1287         if (mAuthToken != null) {
1288             String [] cookies = mAuthToken.split(";");
1289             for (int i=0; i<cookies.length; i++) {
1290                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1291                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1292                     return value;
1293                 }
1294             }
1295         }
1296         return "";
1297     }
1298
1299
1300     /**
1301      * {@inheritDoc}
1302      *
1303      * Necessary to update the contents of the SSL Dialog
1304      *
1305      * TODO move to some common place for all possible untrusted SSL failures
1306      */
1307     @Override
1308     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1309         switch (id) {
1310         case DIALOG_LOGIN_PROGRESS:
1311         case DIALOG_CERT_NOT_SAVED:
1312         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1313             break;
1314         case DIALOG_SSL_VALIDATOR: {
1315             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1316             break;
1317         }
1318         default:
1319             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1320         }
1321     }
1322
1323
1324     /**
1325      * {@inheritDoc}
1326      */
1327     @Override
1328     protected Dialog onCreateDialog(int id) {
1329         Dialog dialog = null;
1330         switch (id) {
1331         case DIALOG_LOGIN_PROGRESS: {
1332             /// simple progress dialog
1333             ProgressDialog working_dialog = new ProgressDialog(this);
1334             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1335             working_dialog.setIndeterminate(true);
1336             working_dialog.setCancelable(true);
1337             working_dialog
1338             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1339                 @Override
1340                 public void onCancel(DialogInterface dialog) {
1341                     /// TODO study if this is enough
1342                     Log_OC.i(TAG, "Login canceled");
1343                     if (mOperationThread != null) {
1344                         mOperationThread.interrupt();
1345                         finish();
1346                     }
1347                 }
1348             });
1349             dialog = working_dialog;
1350             break;
1351         }
1352         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1353             ProgressDialog working_dialog = new ProgressDialog(this);
1354             working_dialog.setMessage(String.format("Getting authorization"));
1355             working_dialog.setIndeterminate(true);
1356             working_dialog.setCancelable(true);
1357             working_dialog
1358             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1359                 @Override
1360                 public void onCancel(DialogInterface dialog) {
1361                     Log_OC.i(TAG, "Login canceled");
1362                     finish();
1363                 }
1364             });
1365             dialog = working_dialog;
1366             break;
1367         }
1368         case DIALOG_SSL_VALIDATOR: {
1369             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1370             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1371             break;
1372         }
1373         case DIALOG_CERT_NOT_SAVED: {
1374             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1375             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1376             builder.setCancelable(false);
1377             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1378                 @Override
1379                 public void onClick(DialogInterface dialog, int which) {
1380                     dialog.dismiss();
1381                 };
1382             });
1383             dialog = builder.create();
1384             break;
1385         }
1386         default:
1387             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1388         }
1389         return dialog;
1390     }
1391
1392
1393     /**
1394      * Starts and activity to open the 'new account' page in the ownCloud web site
1395      *
1396      * @param view      'Account register' button
1397      */
1398     public void onRegisterClick(View view) {
1399         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1400         setResult(RESULT_CANCELED);
1401         startActivity(register);
1402     }
1403
1404
1405     /**
1406      * Updates the content and visibility state of the icon and text associated
1407      * to the last check on the ownCloud server.
1408      */
1409     private void showServerStatus() {
1410         TextView tv = (TextView) findViewById(R.id.server_status_text);
1411
1412         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1413             tv.setVisibility(View.INVISIBLE);
1414
1415         } else {
1416             tv.setText(mServerStatusText);
1417             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1418             tv.setVisibility(View.VISIBLE);
1419         }
1420
1421     }
1422
1423
1424     /**
1425      * Updates the content and visibility state of the icon and text associated
1426      * to the interactions with the OAuth authorization server.
1427      */
1428     private void showAuthStatus() {
1429         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1430             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1431
1432         } else {
1433             mAuthStatusLayout.setText(mAuthStatusText);
1434             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1435             mAuthStatusLayout.setVisibility(View.VISIBLE);
1436         }
1437     }
1438
1439
1440     private void showRefreshButton() {
1441         mRefreshButton.setVisibility(View.VISIBLE);
1442     }
1443
1444     private void hideRefreshButton() {
1445         mRefreshButton.setVisibility(View.GONE);
1446     }
1447
1448     /**
1449      * Called when the refresh button in the input field for ownCloud host is clicked.
1450      *
1451      * Performs a new check on the URL in the input field.
1452      *
1453      * @param view      Refresh 'button'
1454      */
1455     public void onRefreshClick(View view) {
1456         checkOcServer();
1457     }
1458
1459
1460     /**
1461      * Called when the eye icon in the password field is clicked.
1462      *
1463      * Toggles the visibility of the password in the field.
1464      */
1465     public void onViewPasswordClick() {
1466         int selectionStart = mPasswordInput.getSelectionStart();
1467         int selectionEnd = mPasswordInput.getSelectionEnd();
1468         if (isPasswordVisible()) {
1469             hidePassword();
1470         } else {
1471             showPassword();
1472         }
1473         mPasswordInput.setSelection(selectionStart, selectionEnd);
1474     }
1475
1476
1477     /**
1478      * Called when the checkbox for OAuth authorization is clicked.
1479      *
1480      * Hides or shows the input fields for user & password.
1481      *
1482      * @param view      'View password' 'button'
1483      */
1484     public void onCheckClick(View view) {
1485         CheckBox oAuth2Check = (CheckBox)view;
1486         if (oAuth2Check.isChecked()) {
1487             mAuthTokenType = MainApp.getAuthTokenTypeAccessToken();
1488         } else {
1489             mAuthTokenType = MainApp.getAuthTokenTypePass();
1490         }
1491         adaptViewAccordingToAuthenticationMethod();
1492     }
1493
1494
1495     /**
1496      * Changes the visibility of input elements depending on
1497      * the current authorization method.
1498      */
1499     private void adaptViewAccordingToAuthenticationMethod () {
1500         if (MainApp.getAuthTokenTypeAccessToken().equals(mAuthTokenType)) {
1501             // OAuth 2 authorization
1502             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1503             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1504             mUsernameInput.setVisibility(View.GONE);
1505             mPasswordInput.setVisibility(View.GONE);
1506
1507         } else if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
1508             // SAML-based web Single Sign On
1509             mOAuthAuthEndpointText.setVisibility(View.GONE);
1510             mOAuthTokenEndpointText.setVisibility(View.GONE);
1511             mUsernameInput.setVisibility(View.GONE);
1512             mPasswordInput.setVisibility(View.GONE);
1513         } else {
1514             // basic HTTP authorization
1515             mOAuthAuthEndpointText.setVisibility(View.GONE);
1516             mOAuthTokenEndpointText.setVisibility(View.GONE);
1517             mUsernameInput.setVisibility(View.VISIBLE);
1518             mPasswordInput.setVisibility(View.VISIBLE);
1519         }
1520     }
1521
1522     /**
1523      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1524      */
1525     public void onSavedCertificate() {
1526         checkOcServer();
1527     }
1528
1529     /**
1530      * Called from SslValidatorDialog when a new server certificate could not be saved
1531      * when the user requested it.
1532      */
1533     @Override
1534     public void onFailedSavingCertificate() {
1535         showDialog(DIALOG_CERT_NOT_SAVED);
1536     }
1537
1538
1539     /**
1540      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1541      *
1542      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1543      *  or to throw the server test when the only field on screen is the URL input field.
1544      */
1545     @Override
1546     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1547         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1548             if (mOkButton.isEnabled()) {
1549                 mOkButton.performClick();
1550             }
1551
1552         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1553             if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType)) {
1554                 checkOcServer();
1555             }
1556         }
1557         return false;   // always return false to grant that the software keyboard is hidden anyway
1558     }
1559
1560
1561     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1562
1563         private int fuzz = 75;
1564
1565         /**
1566          * {@inheritDoc}
1567          */
1568         @Override
1569         public boolean onTouch(View view, MotionEvent event) {
1570             Drawable rightDrawable = null;
1571             if (view instanceof TextView) {
1572                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1573                 if (drawables.length > 2) {
1574                     rightDrawable = drawables[2];
1575                 }
1576             }
1577             if (rightDrawable != null) {
1578                 final int x = (int) event.getX();
1579                 final int y = (int) event.getY();
1580                 final Rect bounds = rightDrawable.getBounds();
1581                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1582                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1583
1584                     return onDrawableTouch(event);
1585                 }
1586             }
1587             return false;
1588         }
1589
1590         public abstract boolean onDrawableTouch(final MotionEvent event);
1591     }
1592
1593
1594     public void onSamlDialogSuccess(String sessionCookie){
1595         mAuthToken = sessionCookie;
1596
1597         if (sessionCookie != null && sessionCookie.length() > 0) {
1598             mAuthToken = sessionCookie;
1599             boolean success = false;
1600             if (mAction == ACTION_CREATE) {
1601                 success = createAccount();
1602
1603             } else {
1604                 success = updateToken();
1605             }
1606             if (success) {
1607                 finish();
1608             }
1609         }
1610
1611
1612     }
1613
1614
1615     @Override
1616     public void onSsoFinished(String sessionCookies) {
1617         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1618
1619         if (sessionCookies != null && sessionCookies.length() > 0) {
1620             Log_OC.d(TAG, "Successful SSO - time to save the account");
1621             onSamlDialogSuccess(sessionCookies);
1622             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1623             if (fd != null && fd instanceof SherlockDialogFragment) {
1624                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1625                 if (d != null && d.isShowing()) {
1626                     d.dismiss();
1627                 }
1628             }
1629
1630         } else {
1631             // TODO - show fail
1632             Log_OC.d(TAG, "SSO failed");
1633         }
1634
1635     }
1636
1637     /** Show auth_message
1638      *
1639      * @param message
1640      */
1641     private void showAuthMessage(String message) {
1642        mAuthMessage.setVisibility(View.VISIBLE);
1643        mAuthMessage.setText(message);
1644     }
1645
1646     private void hideAuthMessage() {
1647         mAuthMessage.setVisibility(View.GONE);
1648     }
1649
1650     private void syncAccount(){
1651         /// immediately request for the synchronization of the new account
1652         Bundle bundle = new Bundle();
1653         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1654         ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1655     }
1656
1657     @Override
1658     public boolean onTouchEvent(MotionEvent event) {
1659         if (MainApp.getAuthTokenTypeSamlSessionCookie().equals(mAuthTokenType) &&
1660                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1661             checkOcServer();
1662         }
1663         return super.onTouchEvent(event);
1664     }
1665 }