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 java.net.URLDecoder;
  22
  23 import android.accounts.Account;
  24 import android.accounts.AccountManager;
  25 import android.app.AlertDialog;
  26 import android.app.Dialog;
  27 import android.app.ProgressDialog;
  28 import android.content.ContentResolver;
  29 import android.content.DialogInterface;
  30 import android.content.Intent;
  31 import android.content.SharedPreferences;
  32 import android.graphics.Rect;
  33 import android.graphics.drawable.Drawable;
  34 import android.net.Uri;
  35 import android.os.Bundle;
  36 import android.os.Handler;
  37 import android.preference.PreferenceManager;
  38 import android.support.v4.app.Fragment;
  39 import android.text.Editable;
  40 import android.text.InputType;
  41 import android.text.TextWatcher;
  42 import android.view.KeyEvent;
  43 import android.view.MotionEvent;
  44 import android.view.View;
  45 import android.view.View.OnFocusChangeListener;
  46 import android.view.View.OnTouchListener;
  47 import android.view.Window;
  48 import android.view.inputmethod.EditorInfo;
  49 import android.widget.Button;
  50 import android.widget.CheckBox;
  51 import android.widget.EditText;
  52 import android.widget.TextView;
  53 import android.widget.TextView.OnEditorActionListener;
  54 import android.widget.Toast;
  55
  56 import com.actionbarsherlock.app.SherlockDialogFragment;
  57 import com.owncloud.android.Log_OC;
  58 import com.owncloud.android.R;
  59 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  60 import com.owncloud.android.network.OwnCloudClientUtils;
  61 import com.owncloud.android.operations.ExistenceCheckOperation;
  62 import com.owncloud.android.operations.OAuth2GetAccessToken;
  63 import com.owncloud.android.operations.OnRemoteOperationListener;
  64 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  65 import com.owncloud.android.operations.RemoteOperation;
  66 import com.owncloud.android.operations.RemoteOperationResult;
  67 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  68 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  71 import com.owncloud.android.utils.OwnCloudVersion;
  72
  73 import eu.alefzero.webdav.WebdavClient;
  74
  75 /**
  76  * This Activity is used to add an ownCloud account to the App
  77  *
  78  * @author Bartek Przybylski
  79  * @author David A. Velasco
  80  */
  81 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  82 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  83
  84     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  85
  86     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  87     public static final String EXTRA_USER_NAME = "USER_NAME";
  88     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  89     public static final String EXTRA_ACTION = "ACTION";
  90     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  91
  92     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  93     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  94     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  95     private static final String KEY_OC_VERSION = "OC_VERSION";
  96     private static final String KEY_ACCOUNT = "ACCOUNT";
  97     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  98     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  99     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
 100     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 101     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 102     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 103     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 104     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 105     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 106     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 107
 108     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 109
 110     private static final String AUTH_ON = "on";
 111     private static final String AUTH_OFF = "off";
 112     private static final String AUTH_OPTIONAL = "optional";
 113
 114     private static final int DIALOG_LOGIN_PROGRESS = 0;
 115     private static final int DIALOG_SSL_VALIDATOR = 1;
 116     private static final int DIALOG_CERT_NOT_SAVED = 2;
 117     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 118
 119     public static final byte ACTION_CREATE = 0;
 120     public static final byte ACTION_UPDATE_TOKEN = 1;
 121
 122     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 123
 124     private String mHostBaseUrl;
 125     private OwnCloudVersion mDiscoveredVersion;
 126
 127     private String mAuthMessageText;
 128     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 129     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 130     private int mAuthStatusText, mAuthStatusIcon;
 131     private TextView mAuthStatusLayout;
 132
 133     private final Handler mHandler = new Handler();
 134     private Thread mOperationThread;
 135     private OwnCloudServerCheckOperation mOcServerChkOperation;
 136     private ExistenceCheckOperation mAuthCheckOperation;
 137     private RemoteOperationResult mLastSslUntrustedServerResult;
 138
 139     private Uri mNewCapturedUriFromOAuth2Redirection;
 140
 141     private AccountManager mAccountMgr;
 142     private boolean mJustCreated;
 143     private byte mAction;
 144     private Account mAccount;
 145
 146     private TextView mAuthMessage;
 147
 148     private EditText mHostUrlInput;
 149     private boolean mHostUrlInputEnabled;
 150     private View mRefreshButton;
 151
 152     private String mCurrentAuthTokenType;
 153
 154     private EditText mUsernameInput;
 155     private EditText mPasswordInput;
 156
 157     private CheckBox mOAuth2Check;
 158
 159     private TextView mOAuthAuthEndpointText;
 160     private TextView mOAuthTokenEndpointText;
 161
 162     private SamlWebViewDialog mSamlDialog;
 163
 164     private View mOkButton;
 165
 166     private String mAuthToken;
 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             /// connection state and info
 222             mAuthMessageVisibility = View.GONE;
 223             mServerStatusText = mServerStatusIcon = 0;
 224             mServerIsValid = false;
 225             mServerIsChecked = false;
 226             mIsSslConn = false;
 227             mAuthStatusText = mAuthStatusIcon = 0;
 228
 229             /// retrieve extras from intent
 230             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 231             if (mAccount != null) {
 232                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 233                 if (ocVersion != null) {
 234                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 235                 }
 236                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 237                 mHostUrlInput.setText(mHostBaseUrl);
 238                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 239                 mUsernameInput.setText(userName);
 240             }
 241             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 242             mJustCreated = true;
 243
 244             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 245                 checkOcServer();
 246             }
 247
 248         } else {
 249             /// connection state and info
 250             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 251             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 252             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 253             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 254             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 255             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 256             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 257             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 258             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 259             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 260                 showPassword();
 261             }
 262
 263             /// server data
 264             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 265             if (ocVersion != null) {
 266                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 267             }
 268             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 269
 270             // account data, if updating
 271             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 272             mCurrentAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 273             if (mCurrentAuthTokenType == null) {
 274                 mCurrentAuthTokenType =  AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 275
 276             }
 277
 278             // check if server check was interrupted by a configuration change
 279             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 280                 checkOcServer();
 281             }
 282
 283             // refresh button enabled
 284             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 285
 286
 287         }
 288
 289         if (mAuthMessageVisibility== View.VISIBLE) {
 290             showAuthMessage(mAuthMessageText);
 291         }
 292         else {
 293             hideAuthMessage();
 294         }
 295         adaptViewAccordingToAuthenticationMethod();
 296         showServerStatus();
 297         showAuthStatus();
 298
 299         if (mAction == ACTION_UPDATE_TOKEN) {
 300             /// lock things that should not change
 301             mHostUrlInput.setEnabled(false);
 302             mHostUrlInput.setFocusable(false);
 303             mUsernameInput.setEnabled(false);
 304             mUsernameInput.setFocusable(false);
 305             mOAuth2Check.setVisibility(View.GONE);
 306         }
 307
 308         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 309         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 310         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 311
 312         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType) ||
 313                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 314             mOAuth2Check.setVisibility(View.GONE);
 315         }
 316
 317         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 318
 319         /// bind view elements to listeners and other friends
 320         mHostUrlInput.setOnFocusChangeListener(this);
 321         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 322         mHostUrlInput.setOnEditorActionListener(this);
 323         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 324
 325             @Override
 326             public void afterTextChanged(Editable s) {
 327                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 328                     mOkButton.setEnabled(false);
 329                 }
 330             }
 331
 332             @Override
 333             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 334
 335             @Override
 336             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 337
 338         });
 339         mPasswordInput.setOnFocusChangeListener(this);
 340         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 341         mPasswordInput.setOnEditorActionListener(this);
 342         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 343             @Override
 344             public boolean onDrawableTouch(final MotionEvent event) {
 345                 if (event.getAction() == MotionEvent.ACTION_UP) {
 346                     AuthenticatorActivity.this.onViewPasswordClick();
 347                 }
 348                 return true;
 349             }
 350         });
 351
 352     }
 353
 354
 355
 356     private void initAuthorizationMethod() {
 357         boolean oAuthRequired = false;
 358         boolean samlWebSsoRequired = false;
 359
 360         mCurrentAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 361         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 362
 363         // TODO could be a good moment to validate the received token type, if not null
 364
 365         if (mCurrentAuthTokenType == null) {
 366             if (mAccount != null) {
 367                 /// same authentication method than the one used to create the account to update
 368                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 369                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 370
 371             } else {
 372                 /// use the one set in setup.xml
 373                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 374                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 375             }
 376             if (oAuthRequired) {
 377                 mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
 378             } else if (samlWebSsoRequired) {
 379                 mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE;
 380             } else {
 381                 mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 382             }
 383         }
 384
 385         if (mAccount != null) {
 386             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 387             mUsernameInput.setText(userName);
 388         }
 389
 390         mOAuth2Check.setChecked(AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType));
 391
 392     }
 393
 394     /**
 395      * Saves relevant state before {@link #onPause()}
 396      *
 397      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 398      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 399      *
 400      * See {@link #loadSavedInstanceState(Bundle)}
 401      */
 402     @Override
 403     protected void onSaveInstanceState(Bundle outState) {
 404         super.onSaveInstanceState(outState);
 405
 406         /// connection state and info
 407         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 408         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 409         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 410         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 411         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 412         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 413         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 414         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 415         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 416         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 417         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 418
 419         /// server data
 420         if (mDiscoveredVersion != null) {
 421             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 422         }
 423         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 424
 425         /// account data, if updating
 426         if (mAccount != null) {
 427             outState.putParcelable(KEY_ACCOUNT, mAccount);
 428         }
 429         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mCurrentAuthTokenType);
 430
 431         // refresh button enabled
 432         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 433
 434
 435     }
 436
 437
 438     /**
 439      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 440      * is caught here.
 441      *
 442      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 443      * AndroidManifest.xml file.
 444      */
 445     @Override
 446     protected void onNewIntent (Intent intent) {
 447         Log_OC.d(TAG, "onNewIntent()");
 448         Uri data = intent.getData();
 449         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 450             mNewCapturedUriFromOAuth2Redirection = data;
 451         }
 452     }
 453
 454
 455     /**
 456      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 457      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 458      */
 459     @Override
 460     protected void onResume() {
 461         super.onResume();
 462         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 463             if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
 464                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 465                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 466             } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
 467                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 468                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 469             } else {
 470                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 471                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 472             }
 473         }
 474
 475         if (mNewCapturedUriFromOAuth2Redirection != null) {
 476             getOAuth2AccessTokenFromCapturedRedirection();
 477         }
 478
 479         mJustCreated = false;
 480
 481     }
 482
 483
 484     /**
 485      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 486      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 487      */
 488     private void getOAuth2AccessTokenFromCapturedRedirection() {
 489         /// Parse data from OAuth redirection
 490         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 491         mNewCapturedUriFromOAuth2Redirection = null;
 492
 493         /// Showing the dialog with instructions for the user.
 494         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 495
 496         /// GET ACCESS TOKEN to the oAuth server
 497         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 498                 getString(R.string.oauth2_redirect_uri),
 499                 getString(R.string.oauth2_grant_type),
 500                 queryParameters);
 501         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 502         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 503         operation.execute(client, this, mHandler);
 504     }
 505
 506
 507
 508     /**
 509      * Handles the change of focus on the text inputs for the server URL and the password
 510      */
 511     public void onFocusChange(View view, boolean hasFocus) {
 512         if (view.getId() == R.id.hostUrlInput) {
 513             if (!hasFocus) {
 514                 onUrlInputFocusLost((TextView) view);
 515             }
 516             else {
 517                 hideRefreshButton();
 518             }
 519
 520         } else if (view.getId() == R.id.account_password) {
 521             onPasswordFocusChanged((TextView) view, hasFocus);
 522         }
 523     }
 524
 525
 526     /**
 527      * Handles changes in focus on the text input for the server URL.
 528      *
 529      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 530      * other field. The operation to check the existence of the server in the entered URL is
 531      * started.
 532      *
 533      * When hasFocus:    user 'comes back' to write again the server URL.
 534      *
 535      * @param hostInput     TextView with the URL input field receiving the change of focus.
 536      */
 537     private void onUrlInputFocusLost(TextView hostInput) {
 538         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 539             checkOcServer();
 540         } else {
 541             mOkButton.setEnabled(mServerIsValid);
 542             if (!mServerIsValid) {
 543                 showRefreshButton();
 544             }
 545         }
 546     }
 547
 548
 549     private void checkOcServer() {
 550         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 551
 552         if (!mHostUrlInputEnabled){
 553             uri = getString(R.string.server_url);
 554         }
 555
 556         mServerIsValid = false;
 557         mServerIsChecked = false;
 558         mOkButton.setEnabled(false);
 559         mDiscoveredVersion = null;
 560         hideRefreshButton();
 561         if (uri.length() != 0) {
 562             mServerStatusText = R.string.auth_testing_connection;
 563             mServerStatusIcon = R.drawable.progress_small;
 564             showServerStatus();
 565             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 566             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 567             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 568         } else {
 569             mServerStatusText = 0;
 570             mServerStatusIcon = 0;
 571             showServerStatus();
 572         }
 573     }
 574
 575
 576     /**
 577      * Handles changes in focus on the text input for the password (basic authorization).
 578      *
 579      * When (hasFocus), the button to toggle password visibility is shown.
 580      *
 581      * When (!hasFocus), the button is made invisible and the password is hidden.
 582      *
 583      * @param passwordInput    TextView with the password input field receiving the change of focus.
 584      * @param hasFocus          'True' if focus is received, 'false' if is lost
 585      */
 586     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 587         if (hasFocus) {
 588             showViewPasswordButton();
 589         } else {
 590             hidePassword();
 591             hidePasswordButton();
 592         }
 593     }
 594
 595
 596     private void showViewPasswordButton() {
 597         //int drawable = android.R.drawable.ic_menu_view;
 598         int drawable = R.drawable.ic_view;
 599         if (isPasswordVisible()) {
 600             //drawable = android.R.drawable.ic_secure;
 601             drawable = R.drawable.ic_hide;
 602         }
 603         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 604     }
 605
 606     private boolean isPasswordVisible() {
 607         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 608     }
 609
 610     private void hidePasswordButton() {
 611         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 612     }
 613
 614     private void showPassword() {
 615         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 616         showViewPasswordButton();
 617     }
 618
 619     private void hidePassword() {
 620         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 621         showViewPasswordButton();
 622     }
 623
 624
 625     /**
 626      * Cancels the authenticator activity
 627      *
 628      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 629      *
 630      * This method is bound in the layout/acceoun_setup.xml resource file.
 631      *
 632      * @param view      Cancel button
 633      */
 634     public void onCancelClick(View view) {
 635         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 636         finish();
 637     }
 638
 639
 640
 641     /**
 642      * Checks the credentials of the user in the root of the ownCloud server
 643      * before creating a new local account.
 644      *
 645      * For basic authorization, a check of existence of the root folder is
 646      * performed.
 647      *
 648      * For OAuth, starts the flow to get an access token; the credentials test
 649      * is postponed until it is available.
 650      *
 651      * IMPORTANT ENTRY POINT 4
 652      *
 653      * @param view      OK button
 654      */
 655     public void onOkClick(View view) {
 656         // this check should be unnecessary
 657         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 658             mServerStatusIcon = R.drawable.common_error;
 659             mServerStatusText = R.string.auth_wtf_reenter_URL;
 660             showServerStatus();
 661             mOkButton.setEnabled(false);
 662             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 663             return;
 664         }
 665
 666         hideAuthMessage();
 667         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
 668             startOauthorization();
 669         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
 670             startSamlBasedFederatedSingleSignOnAuthorization();
 671         } else {
 672             checkBasicAuthorization();
 673         }
 674     }
 675
 676
 677     /**
 678      * Tests the credentials entered by the user performing a check of existence on
 679      * the root folder of the ownCloud server.
 680      */
 681     private void checkBasicAuthorization() {
 682         /// get the path to the root folder through WebDAV from the version server
 683         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
 684
 685         /// get basic credentials entered by user
 686         String username = mUsernameInput.getText().toString();
 687         String password = mPasswordInput.getText().toString();
 688
 689         /// be gentle with the user
 690         showDialog(DIALOG_LOGIN_PROGRESS);
 691
 692         /// test credentials accessing the root folder
 693         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 694         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 695         client.setBasicCredentials(username, password);
 696         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 697     }
 698
 699
 700     /**
 701      * Starts the OAuth 'grant type' flow to get an access token, with
 702      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 703      */
 704     private void startOauthorization() {
 705         // be gentle with the user
 706         mAuthStatusIcon = R.drawable.progress_small;
 707         mAuthStatusText = R.string.oauth_login_connection;
 708         showAuthStatus();
 709
 710
 711         // GET AUTHORIZATION request
 712         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 713         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 714         Uri.Builder uriBuilder = uri.buildUpon();
 715         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 716         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 717         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 718         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 719         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 720         uri = uriBuilder.build();
 721         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 722         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 723         startActivity(i);
 724     }
 725
 726
 727     /**
 728      * Starts the Web Single Sign On flow to get access to the root folder
 729      * in the server.
 730      */
 731     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 732         // be gentle with the user
 733         mAuthStatusIcon = R.drawable.progress_small;
 734         mAuthStatusText = R.string.auth_connecting_auth_server;
 735         showAuthStatus();
 736         showDialog(DIALOG_LOGIN_PROGRESS);
 737
 738         /// get the path to the root folder through WebDAV from the version server
 739         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
 740
 741         /// test credentials accessing the root folder
 742         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 743         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 744         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 745     }
 746
 747     /**
 748      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 749      *
 750      * Dispatches the operation flow to the right method.
 751      */
 752     @Override
 753     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 754
 755         if (operation instanceof OwnCloudServerCheckOperation) {
 756             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 757
 758         } else if (operation instanceof OAuth2GetAccessToken) {
 759             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 760
 761         } else if (operation instanceof ExistenceCheckOperation)  {
 762             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
 763                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 764
 765             } else {
 766                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 767             }
 768         }
 769     }
 770
 771
 772     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 773         try {
 774             dismissDialog(DIALOG_LOGIN_PROGRESS);
 775         } catch (IllegalArgumentException e) {
 776             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 777         }
 778
 779         if (result.isTemporalRedirection() || result.isIdPRedirection()) {
 780             String url = result.getRedirectedLocation();
 781             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
 782
 783             // Show dialog
 784             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 785             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 786
 787             mAuthStatusIcon = android.R.drawable.ic_secure;
 788             mAuthStatusText = R.string.auth_follow_auth_server;
 789
 790         } else {
 791             mAuthStatusIcon = R.drawable.common_error;
 792             mAuthStatusText = R.string.auth_unsupported_auth_method;
 793
 794         }
 795         showAuthStatus();
 796     }
 797
 798
 799     /**
 800      * Processes the result of the server check performed when the user finishes the enter of the
 801      * server URL.
 802      *
 803      * @param operation     Server check performed.
 804      * @param result        Result of the check.
 805      */
 806     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 807         if (operation.equals(mOcServerChkOperation)) {
 808             /// save result state
 809             mServerIsChecked = true;
 810             mServerIsValid = result.isSuccess();
 811             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 812             mOcServerChkOperation = null;
 813
 814             /// update status icon and text
 815             if (mServerIsValid) {
 816                 hideRefreshButton();
 817             } else {
 818                 showRefreshButton();
 819             }
 820             updateServerStatusIconAndText(result);
 821             showServerStatus();
 822
 823             /// very special case (TODO: move to a common place for all the remote operations)
 824             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 825                 mLastSslUntrustedServerResult = result;
 826                 showDialog(DIALOG_SSL_VALIDATOR);
 827             }
 828
 829             /// retrieve discovered version and normalize server URL
 830             mDiscoveredVersion = operation.getDiscoveredVersion();
 831             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 832
 833             /// allow or not the user try to access the server
 834             mOkButton.setEnabled(mServerIsValid);
 835
 836         }   // else nothing ; only the last check operation is considered;
 837         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 838     }
 839
 840
 841     private String normalizeUrl(String url) {
 842         if (url != null && url.length() > 0) {
 843             url = url.trim();
 844             if (!url.toLowerCase().startsWith("http://") &&
 845                     !url.toLowerCase().startsWith("https://")) {
 846                 if (mIsSslConn) {
 847                     url = "https://" + url;
 848                 } else {
 849                     url = "http://" + url;
 850                 }
 851             }
 852
 853             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 854             url = trimUrlWebdav(url);
 855
 856             if (url.endsWith("/")) {
 857                 url = url.substring(0, url.length() - 1);
 858             }
 859
 860         }
 861         Log_OC.d(TAG, "URL Normalize " + url);
 862         return (url != null ? url : "");
 863     }
 864
 865
 866     private String trimUrlWebdav(String url){
 867         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 868             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 869         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 870             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 871         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 872             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 873         }
 874         return (url != null ? url : "");
 875     }
 876
 877
 878     /**
 879      * Chooses the right icon and text to show to the user for the received operation result.
 880      *
 881      * @param result    Result of a remote operation performed in this activity
 882      */
 883     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 884         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 885
 886         switch (result.getCode()) {
 887         case OK_SSL:
 888             mServerStatusIcon = android.R.drawable.ic_secure;
 889             mServerStatusText = R.string.auth_secure_connection;
 890             break;
 891
 892         case OK_NO_SSL:
 893         case OK:
 894             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 895                 mServerStatusText = R.string.auth_connection_established;
 896                 mServerStatusIcon = R.drawable.ic_ok;
 897             } else {
 898                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 899                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 900             }
 901             break;
 902
 903         case NO_NETWORK_CONNECTION:
 904             mServerStatusIcon = R.drawable.no_network;
 905             mServerStatusText = R.string.auth_no_net_conn_title;
 906             break;
 907
 908         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 909             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 910             break;
 911         case BAD_OC_VERSION:
 912             mServerStatusText = R.string.auth_bad_oc_version_title;
 913             break;
 914         case WRONG_CONNECTION:
 915             mServerStatusText = R.string.auth_wrong_connection_title;
 916             break;
 917         case TIMEOUT:
 918             mServerStatusText = R.string.auth_timeout_title;
 919             break;
 920         case INCORRECT_ADDRESS:
 921             mServerStatusText = R.string.auth_incorrect_address_title;
 922             break;
 923         case SSL_ERROR:
 924             mServerStatusText = R.string.auth_ssl_general_error_title;
 925             break;
 926         case UNAUTHORIZED:
 927             mServerStatusText = R.string.auth_unauthorized;
 928             break;
 929         case HOST_NOT_AVAILABLE:
 930             mServerStatusText = R.string.auth_unknown_host_title;
 931             break;
 932         case INSTANCE_NOT_CONFIGURED:
 933             mServerStatusText = R.string.auth_not_configured_title;
 934             break;
 935         case FILE_NOT_FOUND:
 936             mServerStatusText = R.string.auth_incorrect_path_title;
 937             break;
 938         case OAUTH2_ERROR:
 939             mServerStatusText = R.string.auth_oauth_error;
 940             break;
 941         case OAUTH2_ERROR_ACCESS_DENIED:
 942             mServerStatusText = R.string.auth_oauth_error_access_denied;
 943             break;
 944         case UNHANDLED_HTTP_CODE:
 945         case UNKNOWN_ERROR:
 946             mServerStatusText = R.string.auth_unknown_error_title;
 947             break;
 948         default:
 949             mServerStatusText = 0;
 950             mServerStatusIcon = 0;
 951         }
 952     }
 953
 954
 955     /**
 956      * Chooses the right icon and text to show to the user for the received operation result.
 957      *
 958      * @param result    Result of a remote operation performed in this activity
 959      */
 960     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 961         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 962
 963         switch (result.getCode()) {
 964         case OK_SSL:
 965             mAuthStatusIcon = android.R.drawable.ic_secure;
 966             mAuthStatusText = R.string.auth_secure_connection;
 967             break;
 968
 969         case OK_NO_SSL:
 970         case OK:
 971             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 972                 mAuthStatusText = R.string.auth_connection_established;
 973                 mAuthStatusIcon = R.drawable.ic_ok;
 974             } else {
 975                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 976                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 977             }
 978             break;
 979
 980         case NO_NETWORK_CONNECTION:
 981             mAuthStatusIcon = R.drawable.no_network;
 982             mAuthStatusText = R.string.auth_no_net_conn_title;
 983             break;
 984
 985         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 986             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
 987             break;
 988         case BAD_OC_VERSION:
 989             mAuthStatusText = R.string.auth_bad_oc_version_title;
 990             break;
 991         case WRONG_CONNECTION:
 992             mAuthStatusText = R.string.auth_wrong_connection_title;
 993             break;
 994         case TIMEOUT:
 995             mAuthStatusText = R.string.auth_timeout_title;
 996             break;
 997         case INCORRECT_ADDRESS:
 998             mAuthStatusText = R.string.auth_incorrect_address_title;
 999             break;
1000         case SSL_ERROR:
1001             mAuthStatusText = R.string.auth_ssl_general_error_title;
1002             break;
1003         case UNAUTHORIZED:
1004             mAuthStatusText = R.string.auth_unauthorized;
1005             break;
1006         case HOST_NOT_AVAILABLE:
1007             mAuthStatusText = R.string.auth_unknown_host_title;
1008             break;
1009         case INSTANCE_NOT_CONFIGURED:
1010             mAuthStatusText = R.string.auth_not_configured_title;
1011             break;
1012         case FILE_NOT_FOUND:
1013             mAuthStatusText = R.string.auth_incorrect_path_title;
1014             break;
1015         case OAUTH2_ERROR:
1016             mAuthStatusText = R.string.auth_oauth_error;
1017             break;
1018         case OAUTH2_ERROR_ACCESS_DENIED:
1019             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1020             break;
1021         case ACCOUNT_NOT_NEW:
1022             mAuthStatusText = R.string.auth_account_not_new;
1023             break;
1024         case UNHANDLED_HTTP_CODE:
1025         case UNKNOWN_ERROR:
1026             mAuthStatusText = R.string.auth_unknown_error_title;
1027             break;
1028         default:
1029             mAuthStatusText = 0;
1030             mAuthStatusIcon = 0;
1031         }
1032     }
1033
1034
1035     /**
1036      * Processes the result of the request for and access token send
1037      * to an OAuth authorization server.
1038      *
1039      * @param operation     Operation performed requesting the access token.
1040      * @param result        Result of the operation.
1041      */
1042     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1043         try {
1044             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1045         } catch (IllegalArgumentException e) {
1046             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1047         }
1048
1049         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
1050         if (result.isSuccess() && webdav_path != null) {
1051             /// be gentle with the user
1052             showDialog(DIALOG_LOGIN_PROGRESS);
1053
1054             /// time to test the retrieved access token on the ownCloud server
1055             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1056             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1057             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1058             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1059             client.setBearerCredentials(mAuthToken);
1060             mAuthCheckOperation.execute(client, this, mHandler);
1061
1062         } else {
1063             updateAuthStatusIconAndText(result);
1064             showAuthStatus();
1065             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1066         }
1067     }
1068
1069
1070     /**
1071      * Processes the result of the access check performed to try the user credentials.
1072      *
1073      * Creates a new account through the AccountManager.
1074      *
1075      * @param operation     Access check performed.
1076      * @param result        Result of the operation.
1077      */
1078     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1079         try {
1080             dismissDialog(DIALOG_LOGIN_PROGRESS);
1081         } catch (IllegalArgumentException e) {
1082             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1083         }
1084
1085         if (result.isSuccess()) {
1086             Log_OC.d(TAG, "Successful access - time to save the account");
1087
1088             boolean success = true;
1089             if (mAction == ACTION_CREATE) {
1090                 success = createAccount();
1091
1092             } else {
1093                 updateToken();
1094             }
1095
1096             if (success) {
1097                 finish();
1098             }
1099
1100         } else if (result.isServerFail() || result.isException()) {
1101             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1102             mServerIsChecked = true;
1103             mServerIsValid = false;
1104             mIsSslConn = false;
1105             mOcServerChkOperation = null;
1106             mDiscoveredVersion = null;
1107             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1108
1109             // update status icon and text
1110             updateServerStatusIconAndText(result);
1111             showServerStatus();
1112             mAuthStatusIcon = 0;
1113             mAuthStatusText = 0;
1114             showAuthStatus();
1115
1116             // update input controls state
1117             showRefreshButton();
1118             mOkButton.setEnabled(false);
1119
1120             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1121             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1122                 mLastSslUntrustedServerResult = result;
1123                 showDialog(DIALOG_SSL_VALIDATOR);
1124             }
1125
1126         } else {    // authorization fail due to client side - probably wrong credentials
1127             updateAuthStatusIconAndText(result);
1128             showAuthStatus();
1129             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1130         }
1131     }
1132
1133
1134     /**
1135      * Sets the proper response to get that the Account Authenticator that started this activity saves
1136      * a new authorization token for mAccount.
1137      */
1138     private void updateToken() {
1139         Bundle response = new Bundle();
1140         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1141         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1142
1143         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
1144             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1145             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1146             mAccountMgr.setAuthToken(mAccount, mCurrentAuthTokenType, mAuthToken);
1147
1148         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
1149             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1150             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1151             mAccountMgr.setAuthToken(mAccount, mCurrentAuthTokenType, mAuthToken);
1152
1153         } else {
1154             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1155             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1156         }
1157         setAccountAuthenticatorResult(response);
1158
1159         // Sync Account
1160         syncAccount();
1161     }
1162
1163
1164     /**
1165      * Creates a new account through the Account Authenticator that started this activity.
1166      *
1167      * This makes the account permanent.
1168      *
1169      * TODO Decide how to name the OAuth accounts
1170      */
1171     private boolean createAccount() {
1172         /// create and save new ownCloud account
1173         boolean isOAuth = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType);
1174         boolean isSaml =  AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType);
1175
1176         Uri uri = Uri.parse(mHostBaseUrl);
1177         String username = mUsernameInput.getText().toString().trim();
1178         if (isSaml) {
1179             username = getUserNameForSamlSso();
1180
1181         } else if (isOAuth) {
1182             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1183         }
1184         String accountName = username + "@" + uri.getHost();
1185         if (uri.getPort() >= 0) {
1186             accountName += ":" + uri.getPort();
1187         }
1188         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1189         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1190             // fail - not a new account, but an existing one; disallow
1191             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1192             updateAuthStatusIconAndText(result);
1193             showAuthStatus();
1194             Log_OC.d(TAG, result.getLogMessage());
1195             return false;
1196
1197
1198         } else {
1199
1200             if (isOAuth || isSaml) {
1201                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1202             } else {
1203                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1204             }
1205
1206             /// add the new account as default in preferences, if there is none already
1207             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1208             if (defaultAccount == null) {
1209                 SharedPreferences.Editor editor = PreferenceManager
1210                         .getDefaultSharedPreferences(this).edit();
1211                 editor.putString("select_oc_account", accountName);
1212                 editor.commit();
1213             }
1214
1215             /// prepare result to return to the Authenticator
1216             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1217             final Intent intent = new Intent();
1218             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1219             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1220             /*if (!isOAuth)
1221                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); */
1222             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1223             if (isOAuth || isSaml) {
1224                 mAccountMgr.setAuthToken(mAccount, mCurrentAuthTokenType, mAuthToken);
1225             }
1226             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1227             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1228             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1229             if (isSaml) {
1230                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1231             } else if (isOAuth) {
1232                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1233             }
1234
1235             setAccountAuthenticatorResult(intent.getExtras());
1236             setResult(RESULT_OK, intent);
1237
1238             /// immediately request for the synchronization of the new account
1239             Bundle bundle = new Bundle();
1240             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1241             ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1242             syncAccount();
1243 //          Bundle bundle = new Bundle();
1244 //          bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1245 //          ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1246             return true;
1247         }
1248     }
1249
1250
1251     private String getUserNameForSamlSso() {
1252         if (mAuthToken != null) {
1253             String [] cookies = mAuthToken.split(";");
1254             for (int i=0; i<cookies.length; i++) {
1255                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1256                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1257                     return value;
1258                 }
1259             }
1260         }
1261         return "";
1262     }
1263
1264
1265     /**
1266      * {@inheritDoc}
1267      *
1268      * Necessary to update the contents of the SSL Dialog
1269      *
1270      * TODO move to some common place for all possible untrusted SSL failures
1271      */
1272     @Override
1273     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1274         switch (id) {
1275         case DIALOG_LOGIN_PROGRESS:
1276         case DIALOG_CERT_NOT_SAVED:
1277         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1278             break;
1279         case DIALOG_SSL_VALIDATOR: {
1280             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1281             break;
1282         }
1283         default:
1284             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1285         }
1286     }
1287
1288
1289     /**
1290      * {@inheritDoc}
1291      */
1292     @Override
1293     protected Dialog onCreateDialog(int id) {
1294         Dialog dialog = null;
1295         switch (id) {
1296         case DIALOG_LOGIN_PROGRESS: {
1297             /// simple progress dialog
1298             ProgressDialog working_dialog = new ProgressDialog(this);
1299             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1300             working_dialog.setIndeterminate(true);
1301             working_dialog.setCancelable(true);
1302             working_dialog
1303             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1304                 @Override
1305                 public void onCancel(DialogInterface dialog) {
1306                     /// TODO study if this is enough
1307                     Log_OC.i(TAG, "Login canceled");
1308                     if (mOperationThread != null) {
1309                         mOperationThread.interrupt();
1310                         finish();
1311                     }
1312                 }
1313             });
1314             dialog = working_dialog;
1315             break;
1316         }
1317         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1318             ProgressDialog working_dialog = new ProgressDialog(this);
1319             working_dialog.setMessage(String.format("Getting authorization"));
1320             working_dialog.setIndeterminate(true);
1321             working_dialog.setCancelable(true);
1322             working_dialog
1323             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1324                 @Override
1325                 public void onCancel(DialogInterface dialog) {
1326                     Log_OC.i(TAG, "Login canceled");
1327                     finish();
1328                 }
1329             });
1330             dialog = working_dialog;
1331             break;
1332         }
1333         case DIALOG_SSL_VALIDATOR: {
1334             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1335             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1336             break;
1337         }
1338         case DIALOG_CERT_NOT_SAVED: {
1339             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1340             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1341             builder.setCancelable(false);
1342             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1343                 @Override
1344                 public void onClick(DialogInterface dialog, int which) {
1345                     dialog.dismiss();
1346                 };
1347             });
1348             dialog = builder.create();
1349             break;
1350         }
1351         default:
1352             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1353         }
1354         return dialog;
1355     }
1356
1357
1358     /**
1359      * Starts and activity to open the 'new account' page in the ownCloud web site
1360      *
1361      * @param view      'Account register' button
1362      */
1363     public void onRegisterClick(View view) {
1364         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1365         setResult(RESULT_CANCELED);
1366         startActivity(register);
1367     }
1368
1369
1370     /**
1371      * Updates the content and visibility state of the icon and text associated
1372      * to the last check on the ownCloud server.
1373      */
1374     private void showServerStatus() {
1375         TextView tv = (TextView) findViewById(R.id.server_status_text);
1376
1377         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1378             tv.setVisibility(View.INVISIBLE);
1379
1380         } else {
1381             tv.setText(mServerStatusText);
1382             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1383             tv.setVisibility(View.VISIBLE);
1384         }
1385
1386     }
1387
1388
1389     /**
1390      * Updates the content and visibility state of the icon and text associated
1391      * to the interactions with the OAuth authorization server.
1392      */
1393     private void showAuthStatus() {
1394         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1395             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1396
1397         } else {
1398             mAuthStatusLayout.setText(mAuthStatusText);
1399             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1400             mAuthStatusLayout.setVisibility(View.VISIBLE);
1401         }
1402     }
1403
1404
1405     private void showRefreshButton() {
1406         mRefreshButton.setVisibility(View.VISIBLE);
1407     }
1408
1409     private void hideRefreshButton() {
1410         mRefreshButton.setVisibility(View.GONE);
1411     }
1412
1413     /**
1414      * Called when the refresh button in the input field for ownCloud host is clicked.
1415      *
1416      * Performs a new check on the URL in the input field.
1417      *
1418      * @param view      Refresh 'button'
1419      */
1420     public void onRefreshClick(View view) {
1421         checkOcServer();
1422     }
1423
1424
1425     /**
1426      * Called when the eye icon in the password field is clicked.
1427      *
1428      * Toggles the visibility of the password in the field.
1429      */
1430     public void onViewPasswordClick() {
1431         int selectionStart = mPasswordInput.getSelectionStart();
1432         int selectionEnd = mPasswordInput.getSelectionEnd();
1433         if (isPasswordVisible()) {
1434             hidePassword();
1435         } else {
1436             showPassword();
1437         }
1438         mPasswordInput.setSelection(selectionStart, selectionEnd);
1439     }
1440
1441
1442     /**
1443      * Called when the checkbox for OAuth authorization is clicked.
1444      *
1445      * Hides or shows the input fields for user & password.
1446      *
1447      * @param view      'View password' 'button'
1448      */
1449     public void onCheckClick(View view) {
1450         CheckBox oAuth2Check = (CheckBox)view;
1451         if (oAuth2Check.isChecked()) {
1452             mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
1453         } else {
1454             mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
1455         }
1456         adaptViewAccordingToAuthenticationMethod();
1457     }
1458
1459
1460     /**
1461      * Changes the visibility of input elements depending on
1462      * the current authorization method.
1463      */
1464     private void adaptViewAccordingToAuthenticationMethod () {
1465         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
1466             // OAuth 2 authorization
1467             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1468             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1469             mUsernameInput.setVisibility(View.GONE);
1470             mPasswordInput.setVisibility(View.GONE);
1471
1472         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
1473             // SAML-based web Single Sign On
1474             mOAuthAuthEndpointText.setVisibility(View.GONE);
1475             mOAuthTokenEndpointText.setVisibility(View.GONE);
1476             mUsernameInput.setVisibility(View.GONE);
1477             mPasswordInput.setVisibility(View.GONE);
1478         } else {
1479             // basic HTTP authorization
1480             mOAuthAuthEndpointText.setVisibility(View.GONE);
1481             mOAuthTokenEndpointText.setVisibility(View.GONE);
1482             mUsernameInput.setVisibility(View.VISIBLE);
1483             mPasswordInput.setVisibility(View.VISIBLE);
1484         }
1485     }
1486
1487     /**
1488      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1489      */
1490     public void onSavedCertificate() {
1491         checkOcServer();
1492     }
1493
1494     /**
1495      * Called from SslValidatorDialog when a new server certificate could not be saved
1496      * when the user requested it.
1497      */
1498     @Override
1499     public void onFailedSavingCertificate() {
1500         showDialog(DIALOG_CERT_NOT_SAVED);
1501     }
1502
1503
1504     /**
1505      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1506      *
1507      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1508      *  or to throw the server test when the only field on screen is the URL input field.
1509      */
1510     @Override
1511     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1512         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1513             if (mOkButton.isEnabled()) {
1514                 mOkButton.performClick();
1515             }
1516
1517         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1518             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
1519                 checkOcServer();
1520             }
1521         }
1522         return false;   // always return false to grant that the software keyboard is hidden anyway
1523     }
1524
1525
1526     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1527
1528         private int fuzz = 75;
1529
1530         /**
1531          * {@inheritDoc}
1532          */
1533         @Override
1534         public boolean onTouch(View view, MotionEvent event) {
1535             Drawable rightDrawable = null;
1536             if (view instanceof TextView) {
1537                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1538                 if (drawables.length > 2) {
1539                     rightDrawable = drawables[2];
1540                 }
1541             }
1542             if (rightDrawable != null) {
1543                 final int x = (int) event.getX();
1544                 final int y = (int) event.getY();
1545                 final Rect bounds = rightDrawable.getBounds();
1546                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1547                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1548
1549                     return onDrawableTouch(event);
1550                 }
1551             }
1552             return false;
1553         }
1554
1555         public abstract boolean onDrawableTouch(final MotionEvent event);
1556     }
1557
1558
1559     public void onSamlDialogSuccess(String sessionCookie){
1560         mAuthToken = sessionCookie;
1561
1562         if (sessionCookie != null && sessionCookie.length() > 0) {
1563             Log_OC.d(TAG, "Successful SSO - time to save the account");
1564             mAuthToken = sessionCookie;
1565             boolean success = true;
1566             if (mAction == ACTION_CREATE) {
1567                 success = createAccount();
1568
1569             } else {
1570                 updateToken();
1571             }
1572             if (success) {
1573                 finish();
1574             }
1575         }
1576
1577     }
1578
1579
1580     @Override
1581     public void onSsoFinished(String sessionCookies) {
1582         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1583
1584         if (sessionCookies != null && sessionCookies.length() > 0) {
1585             Log_OC.d(TAG, "Successful SSO - time to save the account");
1586             onSamlDialogSuccess(sessionCookies);
1587             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1588             if (fd != null && fd instanceof SherlockDialogFragment) {
1589                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1590                 if (d != null && d.isShowing()) {
1591                     d.dismiss();
1592                 }
1593             }
1594
1595         } else {
1596             // TODO - show fail
1597             Log_OC.d(TAG, "SSO failed");
1598         }
1599     }
1600
1601
1602     /** Show auth_message
1603      *
1604      * @param message
1605      */
1606     private void showAuthMessage(String message) {
1607        mAuthMessage.setVisibility(View.VISIBLE);
1608        mAuthMessage.setText(message);
1609     }
1610
1611     private void hideAuthMessage() {
1612         mAuthMessage.setVisibility(View.GONE);
1613     }
1614
1615
1616     private void syncAccount(){
1617         /// immediately request for the synchronization of the new account
1618         Bundle bundle = new Bundle();
1619         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1620         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1621     }
1622 }