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.oc_framework.accounts.AccountTypeUtils;
  59 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  60 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  61 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  62 import com.owncloud.android.operations.ExistenceCheckOperation;
  63 import com.owncloud.android.operations.OAuth2GetAccessToken;
  64 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  65 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  66 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  67 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  68 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  69 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  71 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  72 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  73
  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 mAuthTokenType;
 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     private boolean mResumed; // Control if activity is resumed
 169
 170
 171     /**
 172      * {@inheritDoc}
 173      *
 174      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 175      */
 176     @Override
 177     protected void onCreate(Bundle savedInstanceState) {
 178         super.onCreate(savedInstanceState);
 179         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 180
 181         /// set view and get references to view elements
 182         setContentView(R.layout.account_setup);
 183         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 184         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 185         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 186         mUsernameInput = (EditText) findViewById(R.id.account_username);
 187         mPasswordInput = (EditText) findViewById(R.id.account_password);
 188         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 189         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 190         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 191         mOkButton = findViewById(R.id.buttonOK);
 192         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 193
 194         /// set Host Url Input Enabled
 195         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 196
 197
 198         /// complete label for 'register account' button
 199         Button b = (Button) findViewById(R.id.account_register);
 200         if (b != null) {
 201             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 202         }
 203
 204         /// initialization
 205         mAccountMgr = AccountManager.get(this);
 206         mNewCapturedUriFromOAuth2Redirection = null;
 207         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 208         mAccount = null;
 209         mHostBaseUrl = "";
 210         boolean refreshButtonEnabled = false;
 211
 212         // URL input configuration applied
 213         if (!mHostUrlInputEnabled)
 214         {
 215             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 216             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 217
 218         } else {
 219             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 220         }
 221
 222         if (savedInstanceState == null) {
 223             mResumed = false;
 224             /// connection state and info
 225             mAuthMessageVisibility = View.GONE;
 226             mServerStatusText = mServerStatusIcon = 0;
 227             mServerIsValid = false;
 228             mServerIsChecked = false;
 229             mIsSslConn = false;
 230             mAuthStatusText = mAuthStatusIcon = 0;
 231
 232             /// retrieve extras from intent
 233             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 234             if (mAccount != null) {
 235                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 236                 if (ocVersion != null) {
 237                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 238                 }
 239                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 240                 mHostUrlInput.setText(mHostBaseUrl);
 241                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 242                 mUsernameInput.setText(userName);
 243             }
 244             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 245             mJustCreated = true;
 246
 247             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 248                 checkOcServer();
 249             }
 250
 251         } else {
 252             mResumed = true;
 253             /// connection state and info
 254             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 255             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 256             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 257             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 258             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 259             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 260             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 261             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 262             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 263             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 264                 showPassword();
 265             }
 266
 267             /// server data
 268             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 269             if (ocVersion != null) {
 270                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 271             }
 272             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 273
 274             // account data, if updating
 275             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 276             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 277             if (mAuthTokenType == null) {
 278                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 279
 280             }
 281
 282             // check if server check was interrupted by a configuration change
 283             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 284                 checkOcServer();
 285             }
 286
 287             // refresh button enabled
 288             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 289
 290
 291         }
 292
 293         if (mAuthMessageVisibility== View.VISIBLE) {
 294             showAuthMessage(mAuthMessageText);
 295         }
 296         else {
 297             hideAuthMessage();
 298         }
 299         adaptViewAccordingToAuthenticationMethod();
 300         showServerStatus();
 301         showAuthStatus();
 302
 303         if (mAction == ACTION_UPDATE_TOKEN) {
 304             /// lock things that should not change
 305             mHostUrlInput.setEnabled(false);
 306             mHostUrlInput.setFocusable(false);
 307             mUsernameInput.setEnabled(false);
 308             mUsernameInput.setFocusable(false);
 309             mOAuth2Check.setVisibility(View.GONE);
 310         }
 311
 312         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 313         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 314         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 315
 316         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 317                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 318             mOAuth2Check.setVisibility(View.GONE);
 319         }
 320
 321         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 322
 323         /// bind view elements to listeners and other friends
 324         mHostUrlInput.setOnFocusChangeListener(this);
 325         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 326         mHostUrlInput.setOnEditorActionListener(this);
 327         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 328
 329             @Override
 330             public void afterTextChanged(Editable s) {
 331                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 332                     mOkButton.setEnabled(false);
 333                 }
 334             }
 335
 336             @Override
 337             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 338             }
 339
 340             @Override
 341             public void onTextChanged(CharSequence s, int start, int before, int count) {
 342                 if (!mResumed) {
 343                     mAuthStatusIcon = 0;
 344                     mAuthStatusText = 0;
 345                     showAuthStatus();
 346                 }
 347                 mResumed = false;
 348             }
 349         });
 350
 351         mPasswordInput.setOnFocusChangeListener(this);
 352         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 353         mPasswordInput.setOnEditorActionListener(this);
 354         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 355             @Override
 356             public boolean onDrawableTouch(final MotionEvent event) {
 357                 if (event.getAction() == MotionEvent.ACTION_UP) {
 358                     AuthenticatorActivity.this.onViewPasswordClick();
 359                 }
 360                 return true;
 361             }
 362         });
 363
 364         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 365             @Override
 366             public boolean onTouch(View view, MotionEvent event) {
 367                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 368                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 369                             mHostUrlInput.hasFocus()) {
 370                         checkOcServer();
 371                     }
 372                 }
 373                 return false;
 374             }
 375         });
 376     }
 377
 378
 379
 380     private void initAuthorizationMethod() {
 381         boolean oAuthRequired = false;
 382         boolean samlWebSsoRequired = false;
 383
 384         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 385         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 386
 387         // TODO could be a good moment to validate the received token type, if not null
 388
 389         if (mAuthTokenType == null) {
 390             if (mAccount != null) {
 391                 /// same authentication method than the one used to create the account to update
 392                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 393                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 394
 395             } else {
 396                 /// use the one set in setup.xml
 397                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 398                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 399             }
 400             if (oAuthRequired) {
 401                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 402             } else if (samlWebSsoRequired) {
 403                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 404             } else {
 405                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 406             }
 407         }
 408
 409         if (mAccount != null) {
 410             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 411             mUsernameInput.setText(userName);
 412         }
 413
 414         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 415
 416     }
 417
 418     /**
 419      * Saves relevant state before {@link #onPause()}
 420      *
 421      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 422      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 423      *
 424      * See {@link #loadSavedInstanceState(Bundle)}
 425      */
 426     @Override
 427     protected void onSaveInstanceState(Bundle outState) {
 428         super.onSaveInstanceState(outState);
 429
 430         /// connection state and info
 431         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 432         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 433         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 434         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 435         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 436         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 437         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 438         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 439         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 440         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 441         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 442
 443         /// server data
 444         if (mDiscoveredVersion != null) {
 445             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 446         }
 447         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 448
 449         /// account data, if updating
 450         if (mAccount != null) {
 451             outState.putParcelable(KEY_ACCOUNT, mAccount);
 452         }
 453         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 454
 455         // refresh button enabled
 456         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 457
 458
 459     }
 460
 461
 462     /**
 463      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 464      * is caught here.
 465      *
 466      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 467      * AndroidManifest.xml file.
 468      */
 469     @Override
 470     protected void onNewIntent (Intent intent) {
 471         Log_OC.d(TAG, "onNewIntent()");
 472         Uri data = intent.getData();
 473         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 474             mNewCapturedUriFromOAuth2Redirection = data;
 475         }
 476     }
 477
 478
 479     /**
 480      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 481      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 482      */
 483     @Override
 484     protected void onResume() {
 485         super.onResume();
 486         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 487             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 488                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 489                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 490             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 491                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 492                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 493             } else {
 494                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 495                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 496             }
 497         }
 498
 499         if (mNewCapturedUriFromOAuth2Redirection != null) {
 500             getOAuth2AccessTokenFromCapturedRedirection();
 501         }
 502
 503         mJustCreated = false;
 504
 505     }
 506
 507
 508     /**
 509      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 510      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 511      */
 512     private void getOAuth2AccessTokenFromCapturedRedirection() {
 513         /// Parse data from OAuth redirection
 514         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 515         mNewCapturedUriFromOAuth2Redirection = null;
 516
 517         /// Showing the dialog with instructions for the user.
 518         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 519
 520         /// GET ACCESS TOKEN to the oAuth server
 521         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 522                 getString(R.string.oauth2_redirect_uri),
 523                 getString(R.string.oauth2_grant_type),
 524                 queryParameters);
 525         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 526         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 527         operation.execute(client, this, mHandler);
 528     }
 529
 530
 531
 532     /**
 533      * Handles the change of focus on the text inputs for the server URL and the password
 534      */
 535     public void onFocusChange(View view, boolean hasFocus) {
 536         if (view.getId() == R.id.hostUrlInput) {
 537             if (!hasFocus) {
 538                 onUrlInputFocusLost((TextView) view);
 539             }
 540             else {
 541                 hideRefreshButton();
 542             }
 543
 544         } else if (view.getId() == R.id.account_password) {
 545             onPasswordFocusChanged((TextView) view, hasFocus);
 546         }
 547     }
 548
 549
 550     /**
 551      * Handles changes in focus on the text input for the server URL.
 552      *
 553      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 554      * other field. The operation to check the existence of the server in the entered URL is
 555      * started.
 556      *
 557      * When hasFocus:    user 'comes back' to write again the server URL.
 558      *
 559      * @param hostInput     TextView with the URL input field receiving the change of focus.
 560      */
 561     private void onUrlInputFocusLost(TextView hostInput) {
 562         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 563             checkOcServer();
 564         } else {
 565             mOkButton.setEnabled(mServerIsValid);
 566             if (!mServerIsValid) {
 567                 showRefreshButton();
 568             }
 569         }
 570     }
 571
 572
 573     private void checkOcServer() {
 574         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 575
 576         if (!mHostUrlInputEnabled){
 577             uri = getString(R.string.server_url);
 578         }
 579
 580         mServerIsValid = false;
 581         mServerIsChecked = false;
 582         mOkButton.setEnabled(false);
 583         mDiscoveredVersion = null;
 584         hideRefreshButton();
 585         if (uri.length() != 0) {
 586             mServerStatusText = R.string.auth_testing_connection;
 587             mServerStatusIcon = R.drawable.progress_small;
 588             showServerStatus();
 589             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 590             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 591             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 592         } else {
 593             mServerStatusText = 0;
 594             mServerStatusIcon = 0;
 595             showServerStatus();
 596         }
 597     }
 598
 599
 600     /**
 601      * Handles changes in focus on the text input for the password (basic authorization).
 602      *
 603      * When (hasFocus), the button to toggle password visibility is shown.
 604      *
 605      * When (!hasFocus), the button is made invisible and the password is hidden.
 606      *
 607      * @param passwordInput    TextView with the password input field receiving the change of focus.
 608      * @param hasFocus          'True' if focus is received, 'false' if is lost
 609      */
 610     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 611         if (hasFocus) {
 612             showViewPasswordButton();
 613         } else {
 614             hidePassword();
 615             hidePasswordButton();
 616         }
 617     }
 618
 619
 620     private void showViewPasswordButton() {
 621         //int drawable = android.R.drawable.ic_menu_view;
 622         int drawable = R.drawable.ic_view;
 623         if (isPasswordVisible()) {
 624             //drawable = android.R.drawable.ic_secure;
 625             drawable = R.drawable.ic_hide;
 626         }
 627         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 628     }
 629
 630     private boolean isPasswordVisible() {
 631         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 632     }
 633
 634     private void hidePasswordButton() {
 635         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 636     }
 637
 638     private void showPassword() {
 639         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 640         showViewPasswordButton();
 641     }
 642
 643     private void hidePassword() {
 644         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 645         showViewPasswordButton();
 646     }
 647
 648
 649     /**
 650      * Cancels the authenticator activity
 651      *
 652      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 653      *
 654      * This method is bound in the layout/acceoun_setup.xml resource file.
 655      *
 656      * @param view      Cancel button
 657      */
 658     public void onCancelClick(View view) {
 659         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 660         finish();
 661     }
 662
 663
 664
 665     /**
 666      * Checks the credentials of the user in the root of the ownCloud server
 667      * before creating a new local account.
 668      *
 669      * For basic authorization, a check of existence of the root folder is
 670      * performed.
 671      *
 672      * For OAuth, starts the flow to get an access token; the credentials test
 673      * is postponed until it is available.
 674      *
 675      * IMPORTANT ENTRY POINT 4
 676      *
 677      * @param view      OK button
 678      */
 679     public void onOkClick(View view) {
 680         // this check should be unnecessary
 681         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 682             mServerStatusIcon = R.drawable.common_error;
 683             mServerStatusText = R.string.auth_wtf_reenter_URL;
 684             showServerStatus();
 685             mOkButton.setEnabled(false);
 686             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 687             return;
 688         }
 689
 690         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 691             startOauthorization();
 692         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 693             startSamlBasedFederatedSingleSignOnAuthorization();
 694         } else {
 695             checkBasicAuthorization();
 696         }
 697     }
 698
 699
 700     /**
 701      * Tests the credentials entered by the user performing a check of existence on
 702      * the root folder of the ownCloud server.
 703      */
 704     private void checkBasicAuthorization() {
 705         /// get the path to the root folder through WebDAV from the version server
 706         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 707
 708         /// get basic credentials entered by user
 709         String username = mUsernameInput.getText().toString();
 710         String password = mPasswordInput.getText().toString();
 711
 712         /// be gentle with the user
 713         showDialog(DIALOG_LOGIN_PROGRESS);
 714
 715         /// test credentials accessing the root folder
 716         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 717         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 718         client.setBasicCredentials(username, password);
 719         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 720     }
 721
 722
 723     /**
 724      * Starts the OAuth 'grant type' flow to get an access token, with
 725      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 726      */
 727     private void startOauthorization() {
 728         // be gentle with the user
 729         mAuthStatusIcon = R.drawable.progress_small;
 730         mAuthStatusText = R.string.oauth_login_connection;
 731         showAuthStatus();
 732
 733
 734         // GET AUTHORIZATION request
 735         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 736         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 737         Uri.Builder uriBuilder = uri.buildUpon();
 738         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 739         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 740         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 741         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 742         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 743         uri = uriBuilder.build();
 744         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 745         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 746         startActivity(i);
 747     }
 748
 749
 750     /**
 751      * Starts the Web Single Sign On flow to get access to the root folder
 752      * in the server.
 753      */
 754     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 755         // be gentle with the user
 756         mAuthStatusIcon = R.drawable.progress_small;
 757         mAuthStatusText = R.string.auth_connecting_auth_server;
 758         showAuthStatus();
 759         showDialog(DIALOG_LOGIN_PROGRESS);
 760
 761         /// get the path to the root folder through WebDAV from the version server
 762         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 763
 764         /// test credentials accessing the root folder
 765         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 766         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 767         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 768
 769     }
 770
 771     /**
 772      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 773      *
 774      * Dispatches the operation flow to the right method.
 775      */
 776     @Override
 777     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 778
 779         if (operation instanceof OwnCloudServerCheckOperation) {
 780             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 781
 782         } else if (operation instanceof OAuth2GetAccessToken) {
 783             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 784
 785         } else if (operation instanceof ExistenceCheckOperation)  {
 786             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 787                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 788
 789             } else {
 790                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 791             }
 792         }
 793     }
 794
 795
 796     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 797         try {
 798             dismissDialog(DIALOG_LOGIN_PROGRESS);
 799         } catch (IllegalArgumentException e) {
 800             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 801         }
 802
 803         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 804         if (result.isIdPRedirection()) {
 805             String url = result.getRedirectedLocation();
 806             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 807
 808             // Show dialog
 809             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 810             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 811
 812             mAuthStatusIcon = 0;
 813             mAuthStatusText = 0;
 814
 815         } else {
 816             mAuthStatusIcon = R.drawable.common_error;
 817             mAuthStatusText = R.string.auth_unsupported_auth_method;
 818
 819         }
 820         showAuthStatus();
 821     }
 822
 823
 824     /**
 825      * Processes the result of the server check performed when the user finishes the enter of the
 826      * server URL.
 827      *
 828      * @param operation     Server check performed.
 829      * @param result        Result of the check.
 830      */
 831     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 832         if (operation.equals(mOcServerChkOperation)) {
 833             /// save result state
 834             mServerIsChecked = true;
 835             mServerIsValid = result.isSuccess();
 836             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 837             mOcServerChkOperation = null;
 838
 839             /// update status icon and text
 840             if (mServerIsValid) {
 841                 hideRefreshButton();
 842             } else {
 843                 showRefreshButton();
 844             }
 845             updateServerStatusIconAndText(result);
 846             showServerStatus();
 847
 848             /// very special case (TODO: move to a common place for all the remote operations)
 849             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 850                 mLastSslUntrustedServerResult = result;
 851                 showDialog(DIALOG_SSL_VALIDATOR);
 852             }
 853
 854             /// retrieve discovered version and normalize server URL
 855             mDiscoveredVersion = operation.getDiscoveredVersion();
 856             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 857
 858             /// allow or not the user try to access the server
 859             mOkButton.setEnabled(mServerIsValid);
 860
 861         }   // else nothing ; only the last check operation is considered;
 862         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 863     }
 864
 865
 866     private String normalizeUrl(String url) {
 867         if (url != null && url.length() > 0) {
 868             url = url.trim();
 869             if (!url.toLowerCase().startsWith("http://") &&
 870                     !url.toLowerCase().startsWith("https://")) {
 871                 if (mIsSslConn) {
 872                     url = "https://" + url;
 873                 } else {
 874                     url = "http://" + url;
 875                 }
 876             }
 877
 878             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 879             url = trimUrlWebdav(url);
 880
 881             if (url.endsWith("/")) {
 882                 url = url.substring(0, url.length() - 1);
 883             }
 884
 885         }
 886         return (url != null ? url : "");
 887     }
 888
 889
 890     private String trimUrlWebdav(String url){
 891         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 892             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 893         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 894             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 895         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 896             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 897         }
 898         return (url != null ? url : "");
 899     }
 900
 901
 902     /**
 903      * Chooses the right icon and text to show to the user for the received operation result.
 904      *
 905      * @param result    Result of a remote operation performed in this activity
 906      */
 907     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 908         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 909
 910         switch (result.getCode()) {
 911         case OK_SSL:
 912             mServerStatusIcon = android.R.drawable.ic_secure;
 913             mServerStatusText = R.string.auth_secure_connection;
 914             break;
 915
 916         case OK_NO_SSL:
 917         case OK:
 918             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 919                 mServerStatusText = R.string.auth_connection_established;
 920                 mServerStatusIcon = R.drawable.ic_ok;
 921             } else {
 922                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 923                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 924             }
 925             break;
 926
 927         case NO_NETWORK_CONNECTION:
 928             mServerStatusIcon = R.drawable.no_network;
 929             mServerStatusText = R.string.auth_no_net_conn_title;
 930             break;
 931
 932         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 933             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 934             break;
 935         case BAD_OC_VERSION:
 936             mServerStatusText = R.string.auth_bad_oc_version_title;
 937             break;
 938         case WRONG_CONNECTION:
 939             mServerStatusText = R.string.auth_wrong_connection_title;
 940             break;
 941         case TIMEOUT:
 942             mServerStatusText = R.string.auth_timeout_title;
 943             break;
 944         case INCORRECT_ADDRESS:
 945             mServerStatusText = R.string.auth_incorrect_address_title;
 946             break;
 947         case SSL_ERROR:
 948             mServerStatusText = R.string.auth_ssl_general_error_title;
 949             break;
 950         case UNAUTHORIZED:
 951             mServerStatusText = R.string.auth_unauthorized;
 952             break;
 953         case HOST_NOT_AVAILABLE:
 954             mServerStatusText = R.string.auth_unknown_host_title;
 955             break;
 956         case INSTANCE_NOT_CONFIGURED:
 957             mServerStatusText = R.string.auth_not_configured_title;
 958             break;
 959         case FILE_NOT_FOUND:
 960             mServerStatusText = R.string.auth_incorrect_path_title;
 961             break;
 962         case OAUTH2_ERROR:
 963             mServerStatusText = R.string.auth_oauth_error;
 964             break;
 965         case OAUTH2_ERROR_ACCESS_DENIED:
 966             mServerStatusText = R.string.auth_oauth_error_access_denied;
 967             break;
 968         case UNHANDLED_HTTP_CODE:
 969         case UNKNOWN_ERROR:
 970             mServerStatusText = R.string.auth_unknown_error_title;
 971             break;
 972         default:
 973             mServerStatusText = 0;
 974             mServerStatusIcon = 0;
 975         }
 976     }
 977
 978
 979     /**
 980      * Chooses the right icon and text to show to the user for the received operation result.
 981      *
 982      * @param result    Result of a remote operation performed in this activity
 983      */
 984     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 985         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 986
 987         switch (result.getCode()) {
 988         case OK_SSL:
 989             mAuthStatusIcon = android.R.drawable.ic_secure;
 990             mAuthStatusText = R.string.auth_secure_connection;
 991             break;
 992
 993         case OK_NO_SSL:
 994         case OK:
 995             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 996                 mAuthStatusText = R.string.auth_connection_established;
 997                 mAuthStatusIcon = R.drawable.ic_ok;
 998             } else {
 999                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1000                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1001             }
1002             break;
1003
1004         case NO_NETWORK_CONNECTION:
1005             mAuthStatusIcon = R.drawable.no_network;
1006             mAuthStatusText = R.string.auth_no_net_conn_title;
1007             break;
1008
1009         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1010             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1011             break;
1012         case BAD_OC_VERSION:
1013             mAuthStatusText = R.string.auth_bad_oc_version_title;
1014             break;
1015         case WRONG_CONNECTION:
1016             mAuthStatusText = R.string.auth_wrong_connection_title;
1017             break;
1018         case TIMEOUT:
1019             mAuthStatusText = R.string.auth_timeout_title;
1020             break;
1021         case INCORRECT_ADDRESS:
1022             mAuthStatusText = R.string.auth_incorrect_address_title;
1023             break;
1024         case SSL_ERROR:
1025             mAuthStatusText = R.string.auth_ssl_general_error_title;
1026             break;
1027         case UNAUTHORIZED:
1028             mAuthStatusText = R.string.auth_unauthorized;
1029             break;
1030         case HOST_NOT_AVAILABLE:
1031             mAuthStatusText = R.string.auth_unknown_host_title;
1032             break;
1033         case INSTANCE_NOT_CONFIGURED:
1034             mAuthStatusText = R.string.auth_not_configured_title;
1035             break;
1036         case FILE_NOT_FOUND:
1037             mAuthStatusText = R.string.auth_incorrect_path_title;
1038             break;
1039         case OAUTH2_ERROR:
1040             mAuthStatusText = R.string.auth_oauth_error;
1041             break;
1042         case OAUTH2_ERROR_ACCESS_DENIED:
1043             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1044             break;
1045         case ACCOUNT_NOT_NEW:
1046             mAuthStatusText = R.string.auth_account_not_new;
1047             break;
1048         case ACCOUNT_NOT_THE_SAME:
1049             mAuthStatusText = R.string.auth_account_not_the_same;
1050             break;
1051         case UNHANDLED_HTTP_CODE:
1052         case UNKNOWN_ERROR:
1053             mAuthStatusText = R.string.auth_unknown_error_title;
1054             break;
1055         default:
1056             mAuthStatusText = 0;
1057             mAuthStatusIcon = 0;
1058         }
1059     }
1060
1061
1062     /**
1063      * Processes the result of the request for and access token send
1064      * to an OAuth authorization server.
1065      *
1066      * @param operation     Operation performed requesting the access token.
1067      * @param result        Result of the operation.
1068      */
1069     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1070         try {
1071             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1072         } catch (IllegalArgumentException e) {
1073             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1074         }
1075
1076         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1077         if (result.isSuccess() && webdav_path != null) {
1078             /// be gentle with the user
1079             showDialog(DIALOG_LOGIN_PROGRESS);
1080
1081             /// time to test the retrieved access token on the ownCloud server
1082             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1083             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1084             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1085             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1086             client.setBearerCredentials(mAuthToken);
1087             mAuthCheckOperation.execute(client, this, mHandler);
1088
1089         } else {
1090             updateAuthStatusIconAndText(result);
1091             showAuthStatus();
1092             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1093         }
1094     }
1095
1096
1097     /**
1098      * Processes the result of the access check performed to try the user credentials.
1099      *
1100      * Creates a new account through the AccountManager.
1101      *
1102      * @param operation     Access check performed.
1103      * @param result        Result of the operation.
1104      */
1105     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1106         try {
1107             dismissDialog(DIALOG_LOGIN_PROGRESS);
1108         } catch (IllegalArgumentException e) {
1109             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1110         }
1111
1112         if (result.isSuccess()) {
1113             Log_OC.d(TAG, "Successful access - time to save the account");
1114
1115             boolean success = false;
1116             if (mAction == ACTION_CREATE) {
1117                 success = createAccount();
1118
1119             } else {
1120                 success = updateToken();
1121             }
1122
1123             if (success) {
1124                 finish();
1125             }
1126
1127         } else if (result.isServerFail() || result.isException()) {
1128             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1129             mServerIsChecked = true;
1130             mServerIsValid = false;
1131             mIsSslConn = false;
1132             mOcServerChkOperation = null;
1133             mDiscoveredVersion = null;
1134             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1135
1136             // update status icon and text
1137             updateServerStatusIconAndText(result);
1138             showServerStatus();
1139             mAuthStatusIcon = 0;
1140             mAuthStatusText = 0;
1141             showAuthStatus();
1142
1143             // update input controls state
1144             showRefreshButton();
1145             mOkButton.setEnabled(false);
1146
1147             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1148             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1149                 mLastSslUntrustedServerResult = result;
1150                 showDialog(DIALOG_SSL_VALIDATOR);
1151             }
1152
1153         } else {    // authorization fail due to client side - probably wrong credentials
1154             updateAuthStatusIconAndText(result);
1155             showAuthStatus();
1156             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1157         }
1158
1159     }
1160
1161
1162     /**
1163      * Sets the proper response to get that the Account Authenticator that started this activity saves
1164      * a new authorization token for mAccount.
1165      */
1166     private boolean updateToken() {
1167         Bundle response = new Bundle();
1168         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1169         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1170
1171         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1172             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1173             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1174             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1175
1176         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1177             String username = getUserNameForSamlSso();
1178             if (!mUsernameInput.getText().toString().equals(username)) {
1179                 // fail - not a new account, but an existing one; disallow
1180                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1181                 updateAuthStatusIconAndText(result);
1182                 showAuthStatus();
1183                 Log_OC.d(TAG, result.getLogMessage());
1184
1185                 return false;
1186             }
1187
1188             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1189             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1190             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1191
1192         } else {
1193             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1194             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1195         }
1196         setAccountAuthenticatorResult(response);
1197
1198         return true;
1199     }
1200
1201
1202     /**
1203      * Creates a new account through the Account Authenticator that started this activity.
1204      *
1205      * This makes the account permanent.
1206      *
1207      * TODO Decide how to name the OAuth accounts
1208      */
1209     private boolean createAccount() {
1210         /// create and save new ownCloud account
1211         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1212         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1213
1214         Uri uri = Uri.parse(mHostBaseUrl);
1215         String username = mUsernameInput.getText().toString().trim();
1216         if (isSaml) {
1217             username = getUserNameForSamlSso();
1218
1219         } else if (isOAuth) {
1220             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1221         }
1222         String accountName = username + "@" + uri.getHost();
1223         if (uri.getPort() >= 0) {
1224             accountName += ":" + uri.getPort();
1225         }
1226         mAccount = new Account(accountName, MainApp.getAccountType());
1227         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1228             // fail - not a new account, but an existing one; disallow
1229             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1230             updateAuthStatusIconAndText(result);
1231             showAuthStatus();
1232             Log_OC.d(TAG, result.getLogMessage());
1233             return false;
1234
1235         } else {
1236
1237             if (isOAuth || isSaml) {
1238                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1239             } else {
1240                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1241             }
1242
1243             /// add the new account as default in preferences, if there is none already
1244             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1245             if (defaultAccount == null) {
1246                 SharedPreferences.Editor editor = PreferenceManager
1247                         .getDefaultSharedPreferences(this).edit();
1248                 editor.putString("select_oc_account", accountName);
1249                 editor.commit();
1250             }
1251
1252             /// prepare result to return to the Authenticator
1253             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1254             final Intent intent = new Intent();
1255             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1256             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1257             /*if (!isOAuth)
1258                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1259             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1260             if (isOAuth || isSaml) {
1261                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1262             }
1263             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1264             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1265             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1266             if (isSaml) {
1267                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1268             } else if (isOAuth) {
1269                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1270             }
1271
1272             setAccountAuthenticatorResult(intent.getExtras());
1273             setResult(RESULT_OK, intent);
1274
1275             /// immediately request for the synchronization of the new account
1276             Bundle bundle = new Bundle();
1277             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1278             ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1279             syncAccount();
1280 //          Bundle bundle = new Bundle();
1281 //          bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1282 //          ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1283             return true;
1284         }
1285     }
1286
1287
1288     private String getUserNameForSamlSso() {
1289         if (mAuthToken != null) {
1290             String [] cookies = mAuthToken.split(";");
1291             for (int i=0; i<cookies.length; i++) {
1292                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1293                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1294                     return value;
1295                 }
1296             }
1297         }
1298         return "";
1299     }
1300
1301
1302     /**
1303      * {@inheritDoc}
1304      *
1305      * Necessary to update the contents of the SSL Dialog
1306      *
1307      * TODO move to some common place for all possible untrusted SSL failures
1308      */
1309     @Override
1310     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1311         switch (id) {
1312         case DIALOG_LOGIN_PROGRESS:
1313         case DIALOG_CERT_NOT_SAVED:
1314         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1315             break;
1316         case DIALOG_SSL_VALIDATOR: {
1317             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1318             break;
1319         }
1320         default:
1321             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1322         }
1323     }
1324
1325
1326     /**
1327      * {@inheritDoc}
1328      */
1329     @Override
1330     protected Dialog onCreateDialog(int id) {
1331         Dialog dialog = null;
1332         switch (id) {
1333         case DIALOG_LOGIN_PROGRESS: {
1334             /// simple progress dialog
1335             ProgressDialog working_dialog = new ProgressDialog(this);
1336             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1337             working_dialog.setIndeterminate(true);
1338             working_dialog.setCancelable(true);
1339             working_dialog
1340             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1341                 @Override
1342                 public void onCancel(DialogInterface dialog) {
1343                     /// TODO study if this is enough
1344                     Log_OC.i(TAG, "Login canceled");
1345                     if (mOperationThread != null) {
1346                         mOperationThread.interrupt();
1347                         finish();
1348                     }
1349                 }
1350             });
1351             dialog = working_dialog;
1352             break;
1353         }
1354         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1355             ProgressDialog working_dialog = new ProgressDialog(this);
1356             working_dialog.setMessage(String.format("Getting authorization"));
1357             working_dialog.setIndeterminate(true);
1358             working_dialog.setCancelable(true);
1359             working_dialog
1360             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1361                 @Override
1362                 public void onCancel(DialogInterface dialog) {
1363                     Log_OC.i(TAG, "Login canceled");
1364                     finish();
1365                 }
1366             });
1367             dialog = working_dialog;
1368             break;
1369         }
1370         case DIALOG_SSL_VALIDATOR: {
1371             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1372             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1373             break;
1374         }
1375         case DIALOG_CERT_NOT_SAVED: {
1376             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1377             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1378             builder.setCancelable(false);
1379             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1380                 @Override
1381                 public void onClick(DialogInterface dialog, int which) {
1382                     dialog.dismiss();
1383                 };
1384             });
1385             dialog = builder.create();
1386             break;
1387         }
1388         default:
1389             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1390         }
1391         return dialog;
1392     }
1393
1394
1395     /**
1396      * Starts and activity to open the 'new account' page in the ownCloud web site
1397      *
1398      * @param view      'Account register' button
1399      */
1400     public void onRegisterClick(View view) {
1401         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1402         setResult(RESULT_CANCELED);
1403         startActivity(register);
1404     }
1405
1406
1407     /**
1408      * Updates the content and visibility state of the icon and text associated
1409      * to the last check on the ownCloud server.
1410      */
1411     private void showServerStatus() {
1412         TextView tv = (TextView) findViewById(R.id.server_status_text);
1413
1414         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1415             tv.setVisibility(View.INVISIBLE);
1416
1417         } else {
1418             tv.setText(mServerStatusText);
1419             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1420             tv.setVisibility(View.VISIBLE);
1421         }
1422
1423     }
1424
1425
1426     /**
1427      * Updates the content and visibility state of the icon and text associated
1428      * to the interactions with the OAuth authorization server.
1429      */
1430     private void showAuthStatus() {
1431         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1432             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1433
1434         } else {
1435             mAuthStatusLayout.setText(mAuthStatusText);
1436             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1437             mAuthStatusLayout.setVisibility(View.VISIBLE);
1438         }
1439     }
1440
1441
1442     private void showRefreshButton() {
1443         mRefreshButton.setVisibility(View.VISIBLE);
1444     }
1445
1446     private void hideRefreshButton() {
1447         mRefreshButton.setVisibility(View.GONE);
1448     }
1449
1450     /**
1451      * Called when the refresh button in the input field for ownCloud host is clicked.
1452      *
1453      * Performs a new check on the URL in the input field.
1454      *
1455      * @param view      Refresh 'button'
1456      */
1457     public void onRefreshClick(View view) {
1458         checkOcServer();
1459     }
1460
1461
1462     /**
1463      * Called when the eye icon in the password field is clicked.
1464      *
1465      * Toggles the visibility of the password in the field.
1466      */
1467     public void onViewPasswordClick() {
1468         int selectionStart = mPasswordInput.getSelectionStart();
1469         int selectionEnd = mPasswordInput.getSelectionEnd();
1470         if (isPasswordVisible()) {
1471             hidePassword();
1472         } else {
1473             showPassword();
1474         }
1475         mPasswordInput.setSelection(selectionStart, selectionEnd);
1476     }
1477
1478
1479     /**
1480      * Called when the checkbox for OAuth authorization is clicked.
1481      *
1482      * Hides or shows the input fields for user & password.
1483      *
1484      * @param view      'View password' 'button'
1485      */
1486     public void onCheckClick(View view) {
1487         CheckBox oAuth2Check = (CheckBox)view;
1488         if (oAuth2Check.isChecked()) {
1489             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1490         } else {
1491             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1492         }
1493         adaptViewAccordingToAuthenticationMethod();
1494     }
1495
1496
1497     /**
1498      * Changes the visibility of input elements depending on
1499      * the current authorization method.
1500      */
1501     private void adaptViewAccordingToAuthenticationMethod () {
1502         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1503             // OAuth 2 authorization
1504             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1505             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1506             mUsernameInput.setVisibility(View.GONE);
1507             mPasswordInput.setVisibility(View.GONE);
1508
1509         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1510             // SAML-based web Single Sign On
1511             mOAuthAuthEndpointText.setVisibility(View.GONE);
1512             mOAuthTokenEndpointText.setVisibility(View.GONE);
1513             mUsernameInput.setVisibility(View.GONE);
1514             mPasswordInput.setVisibility(View.GONE);
1515         } else {
1516             // basic HTTP authorization
1517             mOAuthAuthEndpointText.setVisibility(View.GONE);
1518             mOAuthTokenEndpointText.setVisibility(View.GONE);
1519             mUsernameInput.setVisibility(View.VISIBLE);
1520             mPasswordInput.setVisibility(View.VISIBLE);
1521         }
1522     }
1523
1524     /**
1525      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1526      */
1527     public void onSavedCertificate() {
1528         checkOcServer();
1529     }
1530
1531     /**
1532      * Called from SslValidatorDialog when a new server certificate could not be saved
1533      * when the user requested it.
1534      */
1535     @Override
1536     public void onFailedSavingCertificate() {
1537         showDialog(DIALOG_CERT_NOT_SAVED);
1538     }
1539
1540
1541     /**
1542      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1543      *
1544      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1545      *  or to throw the server test when the only field on screen is the URL input field.
1546      */
1547     @Override
1548     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1549         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1550             if (mOkButton.isEnabled()) {
1551                 mOkButton.performClick();
1552             }
1553
1554         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1555             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1556                 checkOcServer();
1557             }
1558         }
1559         return false;   // always return false to grant that the software keyboard is hidden anyway
1560     }
1561
1562
1563     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1564
1565         private int fuzz = 75;
1566
1567         /**
1568          * {@inheritDoc}
1569          */
1570         @Override
1571         public boolean onTouch(View view, MotionEvent event) {
1572             Drawable rightDrawable = null;
1573             if (view instanceof TextView) {
1574                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1575                 if (drawables.length > 2) {
1576                     rightDrawable = drawables[2];
1577                 }
1578             }
1579             if (rightDrawable != null) {
1580                 final int x = (int) event.getX();
1581                 final int y = (int) event.getY();
1582                 final Rect bounds = rightDrawable.getBounds();
1583                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1584                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1585
1586                     return onDrawableTouch(event);
1587                 }
1588             }
1589             return false;
1590         }
1591
1592         public abstract boolean onDrawableTouch(final MotionEvent event);
1593     }
1594
1595
1596     public void onSamlDialogSuccess(String sessionCookie){
1597         mAuthToken = sessionCookie;
1598
1599         if (sessionCookie != null && sessionCookie.length() > 0) {
1600             mAuthToken = sessionCookie;
1601             boolean success = false;
1602             if (mAction == ACTION_CREATE) {
1603                 success = createAccount();
1604
1605             } else {
1606                 success = updateToken();
1607             }
1608             if (success) {
1609                 finish();
1610             }
1611         }
1612
1613
1614     }
1615
1616
1617     @Override
1618     public void onSsoFinished(String sessionCookies) {
1619         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1620
1621         if (sessionCookies != null && sessionCookies.length() > 0) {
1622             Log_OC.d(TAG, "Successful SSO - time to save the account");
1623             onSamlDialogSuccess(sessionCookies);
1624             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1625             if (fd != null && fd instanceof SherlockDialogFragment) {
1626                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1627                 if (d != null && d.isShowing()) {
1628                     d.dismiss();
1629                 }
1630             }
1631
1632         } else {
1633             // TODO - show fail
1634             Log_OC.d(TAG, "SSO failed");
1635         }
1636
1637     }
1638
1639     /** Show auth_message
1640      *
1641      * @param message
1642      */
1643     private void showAuthMessage(String message) {
1644        mAuthMessage.setVisibility(View.VISIBLE);
1645        mAuthMessage.setText(message);
1646     }
1647
1648     private void hideAuthMessage() {
1649         mAuthMessage.setVisibility(View.GONE);
1650     }
1651
1652     private void syncAccount(){
1653         /// immediately request for the synchronization of the new account
1654         Bundle bundle = new Bundle();
1655         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1656         ContentResolver.requestSync(mAccount, MainApp.getAuthTokenType(), bundle);
1657     }
1658
1659     @Override
1660     public boolean onTouchEvent(MotionEvent event) {
1661         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1662                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1663             checkOcServer();
1664         }
1665         return super.onTouchEvent(event);
1666     }
1667 }