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