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