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