src/com/owncloud/android/authentication/AuthenticatorActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.ContentResolver;
  27 import android.content.DialogInterface;
  28 import android.content.Intent;
  29 import android.content.SharedPreferences;
  30 import android.graphics.Rect;
  31 import android.graphics.drawable.Drawable;
  32 import android.net.Uri;
  33 import android.os.Bundle;
  34 import android.os.Handler;
  35 import android.preference.PreferenceManager;
  36 import android.support.v4.app.Fragment;
  37 import android.text.Editable;
  38 import android.text.InputType;
  39 import android.text.TextWatcher;
  40 import android.view.KeyEvent;
  41 import android.view.MotionEvent;
  42 import android.view.View;
  43 import android.view.View.OnFocusChangeListener;
  44 import android.view.View.OnTouchListener;
  45 import android.view.Window;
  46 import android.view.inputmethod.EditorInfo;
  47 import android.widget.Button;
  48 import android.widget.CheckBox;
  49 import android.widget.EditText;
  50 import android.widget.TextView;
  51 import android.widget.TextView.OnEditorActionListener;
  52
  53 import com.actionbarsherlock.app.SherlockDialogFragment;
  54 import com.owncloud.android.Log_OC;
  55 import com.owncloud.android.R;
  56 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  57 import com.owncloud.android.network.OwnCloudClientUtils;
  58 import com.owncloud.android.operations.ExistenceCheckOperation;
  59 import com.owncloud.android.operations.OAuth2GetAccessToken;
  60 import com.owncloud.android.operations.OnRemoteOperationListener;
  61 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  62 import com.owncloud.android.operations.RemoteOperation;
  63 import com.owncloud.android.operations.RemoteOperationResult;
  64 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  65 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  66 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  67 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  68 import com.owncloud.android.utils.OwnCloudVersion;
  69
  70 import eu.alefzero.webdav.WebdavClient;
  71
  72 /**
  73  * This Activity is used to add an ownCloud account to the App
  74  *
  75  * @author Bartek Przybylski
  76  * @author David A. Velasco
  77  */
  78 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  79 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  80
  81     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  82
  83     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  84     public static final String EXTRA_USER_NAME = "USER_NAME";
  85     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  86     public static final String EXTRA_ACTION = "ACTION";
  87     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  88
  89     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  90     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  91     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  92     private static final String KEY_OC_VERSION = "OC_VERSION";
  93     private static final String KEY_ACCOUNT = "ACCOUNT";
  94     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  95     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  96     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  97     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  98     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
  99     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 100     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 101     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 102     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 103     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 104
 105     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 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 static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 120
 121     private String mHostBaseUrl;
 122     private OwnCloudVersion mDiscoveredVersion;
 123
 124     private String mAuthMessageText;
 125     private int mAuthMessageVisibility, 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 TextView mAuthMessage;
 144
 145     private EditText mHostUrlInput;
 146     private boolean mHostUrlInputEnabled;
 147     private View mRefreshButton;
 148
 149     private String mAuthTokenType;
 150
 151     private EditText mUsernameInput;
 152     private EditText mPasswordInput;
 153
 154     private CheckBox mOAuth2Check;
 155
 156     private TextView mOAuthAuthEndpointText;
 157     private TextView mOAuthTokenEndpointText;
 158
 159     private SamlWebViewDialog mSamlDialog;
 160
 161     private View mOkButton;
 162
 163     private String mAuthToken;
 164
 165     private boolean mResumed; // Control if activity is resumed
 166
 167
 168     /**
 169      * {@inheritDoc}
 170      *
 171      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 172      */
 173     @Override
 174     protected void onCreate(Bundle savedInstanceState) {
 175         super.onCreate(savedInstanceState);
 176         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 177
 178         /// set view and get references to view elements
 179         setContentView(R.layout.account_setup);
 180         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 181         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 182         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 183         mUsernameInput = (EditText) findViewById(R.id.account_username);
 184         mPasswordInput = (EditText) findViewById(R.id.account_password);
 185         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 186         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 187         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 188         mOkButton = findViewById(R.id.buttonOK);
 189         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 190
 191         /// set Host Url Input Enabled
 192         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 193
 194
 195         /// complete label for 'register account' button
 196         Button b = (Button) findViewById(R.id.account_register);
 197         if (b != null) {
 198             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 199         }
 200
 201         /// initialization
 202         mAccountMgr = AccountManager.get(this);
 203         mNewCapturedUriFromOAuth2Redirection = null;
 204         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 205         mAccount = null;
 206         mHostBaseUrl = "";
 207         boolean refreshButtonEnabled = false;
 208
 209         // URL input configuration applied
 210         if (!mHostUrlInputEnabled)
 211         {
 212             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 213             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 214
 215         } else {
 216             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 217         }
 218
 219         if (savedInstanceState == null) {
 220             mResumed = false;
 221             /// connection state and info
 222             mAuthMessageVisibility = View.GONE;
 223             mServerStatusText = mServerStatusIcon = 0;
 224             mServerIsValid = false;
 225             mServerIsChecked = false;
 226             mIsSslConn = false;
 227             mAuthStatusText = mAuthStatusIcon = 0;
 228
 229             /// retrieve extras from intent
 230             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 231             if (mAccount != null) {
 232                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 233                 if (ocVersion != null) {
 234                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 235                 }
 236                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 237                 mHostUrlInput.setText(mHostBaseUrl);
 238                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 239                 mUsernameInput.setText(userName);
 240             }
 241             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 242             mJustCreated = true;
 243
 244             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 245                 checkOcServer();
 246             }
 247
 248         } else {
 249             mResumed = true;
 250             /// connection state and info
 251             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 252             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 253             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 254             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 255             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 256             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 257             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 258             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 259             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 260             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 261                 showPassword();
 262             }
 263
 264             /// server data
 265             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 266             if (ocVersion != null) {
 267                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 268             }
 269             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 270
 271             // account data, if updating
 272             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 273             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 274             if (mAuthTokenType == null) {
 275                 mAuthTokenType =  AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 276
 277             }
 278
 279             // check if server check was interrupted by a configuration change
 280             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 281                 checkOcServer();
 282             }
 283
 284             // refresh button enabled
 285             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 286
 287
 288         }
 289
 290         if (mAuthMessageVisibility== View.VISIBLE) {
 291             showAuthMessage(mAuthMessageText);
 292         }
 293         else {
 294             hideAuthMessage();
 295         }
 296         adaptViewAccordingToAuthenticationMethod();
 297         showServerStatus();
 298         showAuthStatus();
 299
 300         if (mAction == ACTION_UPDATE_TOKEN) {
 301             /// lock things that should not change
 302             mHostUrlInput.setEnabled(false);
 303             mHostUrlInput.setFocusable(false);
 304             mUsernameInput.setEnabled(false);
 305             mUsernameInput.setFocusable(false);
 306             mOAuth2Check.setVisibility(View.GONE);
 307         }
 308
 309         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 310         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 311         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 312
 313         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) ||
 314                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 315             mOAuth2Check.setVisibility(View.GONE);
 316         }
 317
 318         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 319
 320         /// bind view elements to listeners and other friends
 321         mHostUrlInput.setOnFocusChangeListener(this);
 322         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 323         mHostUrlInput.setOnEditorActionListener(this);
 324         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 325
 326             @Override
 327             public void afterTextChanged(Editable s) {
 328                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 329                     mOkButton.setEnabled(false);
 330                 }
 331             }
 332
 333             @Override
 334             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 335             }
 336
 337             @Override
 338             public void onTextChanged(CharSequence s, int start, int before, int count) {
 339                 if (!mResumed) {
 340                     mAuthStatusIcon = 0;
 341                     mAuthStatusText = 0;
 342                     showAuthStatus();
 343                 }
 344                 mResumed = false;
 345             }
 346         });
 347
 348         mPasswordInput.setOnFocusChangeListener(this);
 349         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 350         mPasswordInput.setOnEditorActionListener(this);
 351         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 352             @Override
 353             public boolean onDrawableTouch(final MotionEvent event) {
 354                 if (event.getAction() == MotionEvent.ACTION_UP) {
 355                     AuthenticatorActivity.this.onViewPasswordClick();
 356                 }
 357                 return true;
 358             }
 359         });
 360
 361         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 362             @Override
 363             public boolean onTouch(View view, MotionEvent event) {
 364                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 365                     if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
 366                             mHostUrlInput.hasFocus()) {
 367                         checkOcServer();
 368                     }
 369                 }
 370                 return false;
 371             }
 372         });
 373     }
 374
 375
 376
 377     private void initAuthorizationMethod() {
 378         boolean oAuthRequired = false;
 379         boolean samlWebSsoRequired = false;
 380
 381         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 382         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 383
 384         // TODO could be a good moment to validate the received token type, if not null
 385
 386         if (mAuthTokenType == null) {
 387             if (mAccount != null) {
 388                 /// same authentication method than the one used to create the account to update
 389                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 390                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 391
 392             } else {
 393                 /// use the one set in setup.xml
 394                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 395                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 396             }
 397             if (oAuthRequired) {
 398                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
 399             } else if (samlWebSsoRequired) {
 400                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE;
 401             } else {
 402                 mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 403             }
 404         }
 405
 406         if (mAccount != null) {
 407             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 408             mUsernameInput.setText(userName);
 409         }
 410
 411         mOAuth2Check.setChecked(AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType));
 412
 413     }
 414
 415     /**
 416      * Saves relevant state before {@link #onPause()}
 417      *
 418      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 419      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 420      *
 421      * See {@link #loadSavedInstanceState(Bundle)}
 422      */
 423     @Override
 424     protected void onSaveInstanceState(Bundle outState) {
 425         super.onSaveInstanceState(outState);
 426
 427         /// connection state and info
 428         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 429         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 430         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 431         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 432         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 433         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 434         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 435         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 436         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 437         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 438         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 439
 440         /// server data
 441         if (mDiscoveredVersion != null) {
 442             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 443         }
 444         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 445
 446         /// account data, if updating
 447         if (mAccount != null) {
 448             outState.putParcelable(KEY_ACCOUNT, mAccount);
 449         }
 450         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 451
 452         // refresh button enabled
 453         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 454
 455
 456     }
 457
 458
 459     /**
 460      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 461      * is caught here.
 462      *
 463      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 464      * AndroidManifest.xml file.
 465      */
 466     @Override
 467     protected void onNewIntent (Intent intent) {
 468         Log_OC.d(TAG, "onNewIntent()");
 469         Uri data = intent.getData();
 470         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 471             mNewCapturedUriFromOAuth2Redirection = data;
 472         }
 473     }
 474
 475
 476     /**
 477      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 478      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 479      */
 480     @Override
 481     protected void onResume() {
 482         super.onResume();
 483         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 484             if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
 485                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 486                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 487             } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 488                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 489                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 490             } else {
 491                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 492                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 493             }
 494         }
 495
 496         if (mNewCapturedUriFromOAuth2Redirection != null) {
 497             getOAuth2AccessTokenFromCapturedRedirection();
 498         }
 499
 500         mJustCreated = false;
 501
 502     }
 503
 504
 505     /**
 506      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 507      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 508      */
 509     private void getOAuth2AccessTokenFromCapturedRedirection() {
 510         /// Parse data from OAuth redirection
 511         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 512         mNewCapturedUriFromOAuth2Redirection = null;
 513
 514         /// Showing the dialog with instructions for the user.
 515         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 516
 517         /// GET ACCESS TOKEN to the oAuth server
 518         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 519                 getString(R.string.oauth2_redirect_uri),
 520                 getString(R.string.oauth2_grant_type),
 521                 queryParameters);
 522         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 523         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 524         operation.execute(client, this, mHandler);
 525     }
 526
 527
 528
 529     /**
 530      * Handles the change of focus on the text inputs for the server URL and the password
 531      */
 532     public void onFocusChange(View view, boolean hasFocus) {
 533         if (view.getId() == R.id.hostUrlInput) {
 534             if (!hasFocus) {
 535                 onUrlInputFocusLost((TextView) view);
 536             }
 537             else {
 538                 hideRefreshButton();
 539             }
 540
 541         } else if (view.getId() == R.id.account_password) {
 542             onPasswordFocusChanged((TextView) view, hasFocus);
 543         }
 544     }
 545
 546
 547     /**
 548      * Handles changes in focus on the text input for the server URL.
 549      *
 550      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 551      * other field. The operation to check the existence of the server in the entered URL is
 552      * started.
 553      *
 554      * When hasFocus:    user 'comes back' to write again the server URL.
 555      *
 556      * @param hostInput     TextView with the URL input field receiving the change of focus.
 557      */
 558     private void onUrlInputFocusLost(TextView hostInput) {
 559         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 560             checkOcServer();
 561         } else {
 562             mOkButton.setEnabled(mServerIsValid);
 563             if (!mServerIsValid) {
 564                 showRefreshButton();
 565             }
 566         }
 567     }
 568
 569
 570     private void checkOcServer() {
 571         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 572
 573         if (!mHostUrlInputEnabled){
 574             uri = getString(R.string.server_url);
 575         }
 576
 577         mServerIsValid = false;
 578         mServerIsChecked = false;
 579         mOkButton.setEnabled(false);
 580         mDiscoveredVersion = null;
 581         hideRefreshButton();
 582         if (uri.length() != 0) {
 583             mServerStatusText = R.string.auth_testing_connection;
 584             mServerStatusIcon = R.drawable.progress_small;
 585             showServerStatus();
 586             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 587             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 588             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 589         } else {
 590             mServerStatusText = 0;
 591             mServerStatusIcon = 0;
 592             showServerStatus();
 593         }
 594     }
 595
 596
 597     /**
 598      * Handles changes in focus on the text input for the password (basic authorization).
 599      *
 600      * When (hasFocus), the button to toggle password visibility is shown.
 601      *
 602      * When (!hasFocus), the button is made invisible and the password is hidden.
 603      *
 604      * @param passwordInput    TextView with the password input field receiving the change of focus.
 605      * @param hasFocus          'True' if focus is received, 'false' if is lost
 606      */
 607     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 608         if (hasFocus) {
 609             showViewPasswordButton();
 610         } else {
 611             hidePassword();
 612             hidePasswordButton();
 613         }
 614     }
 615
 616
 617     private void showViewPasswordButton() {
 618         //int drawable = android.R.drawable.ic_menu_view;
 619         int drawable = R.drawable.ic_view;
 620         if (isPasswordVisible()) {
 621             //drawable = android.R.drawable.ic_secure;
 622             drawable = R.drawable.ic_hide;
 623         }
 624         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 625     }
 626
 627     private boolean isPasswordVisible() {
 628         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 629     }
 630
 631     private void hidePasswordButton() {
 632         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 633     }
 634
 635     private void showPassword() {
 636         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 637         showViewPasswordButton();
 638     }
 639
 640     private void hidePassword() {
 641         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 642         showViewPasswordButton();
 643     }
 644
 645
 646     /**
 647      * Cancels the authenticator activity
 648      *
 649      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 650      *
 651      * This method is bound in the layout/acceoun_setup.xml resource file.
 652      *
 653      * @param view      Cancel button
 654      */
 655     public void onCancelClick(View view) {
 656         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 657         finish();
 658     }
 659
 660
 661
 662     /**
 663      * Checks the credentials of the user in the root of the ownCloud server
 664      * before creating a new local account.
 665      *
 666      * For basic authorization, a check of existence of the root folder is
 667      * performed.
 668      *
 669      * For OAuth, starts the flow to get an access token; the credentials test
 670      * is postponed until it is available.
 671      *
 672      * IMPORTANT ENTRY POINT 4
 673      *
 674      * @param view      OK button
 675      */
 676     public void onOkClick(View view) {
 677         // this check should be unnecessary
 678         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 679             mServerStatusIcon = R.drawable.common_error;
 680             mServerStatusText = R.string.auth_wtf_reenter_URL;
 681             showServerStatus();
 682             mOkButton.setEnabled(false);
 683             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 684             return;
 685         }
 686
 687         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
 688             startOauthorization();
 689         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 690             startSamlBasedFederatedSingleSignOnAuthorization();
 691         } else {
 692             checkBasicAuthorization();
 693         }
 694     }
 695
 696
 697     /**
 698      * Tests the credentials entered by the user performing a check of existence on
 699      * the root folder of the ownCloud server.
 700      */
 701     private void checkBasicAuthorization() {
 702         /// get the path to the root folder through WebDAV from the version server
 703         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 704
 705         /// get basic credentials entered by user
 706         String username = mUsernameInput.getText().toString();
 707         String password = mPasswordInput.getText().toString();
 708
 709         /// be gentle with the user
 710         showDialog(DIALOG_LOGIN_PROGRESS);
 711
 712         /// test credentials accessing the root folder
 713         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 714         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 715         client.setBasicCredentials(username, password);
 716         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 717     }
 718
 719
 720     /**
 721      * Starts the OAuth 'grant type' flow to get an access token, with
 722      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 723      */
 724     private void startOauthorization() {
 725         // be gentle with the user
 726         mAuthStatusIcon = R.drawable.progress_small;
 727         mAuthStatusText = R.string.oauth_login_connection;
 728         showAuthStatus();
 729
 730
 731         // GET AUTHORIZATION request
 732         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 733         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 734         Uri.Builder uriBuilder = uri.buildUpon();
 735         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 736         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 737         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 738         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 739         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 740         uri = uriBuilder.build();
 741         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 742         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 743         startActivity(i);
 744     }
 745
 746
 747     /**
 748      * Starts the Web Single Sign On flow to get access to the root folder
 749      * in the server.
 750      */
 751     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 752         // be gentle with the user
 753         mAuthStatusIcon = R.drawable.progress_small;
 754         mAuthStatusText = R.string.auth_connecting_auth_server;
 755         showAuthStatus();
 756         showDialog(DIALOG_LOGIN_PROGRESS);
 757
 758         /// get the path to the root folder through WebDAV from the version server
 759         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 760
 761         /// test credentials accessing the root folder
 762         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 763         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 764         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 765
 766     }
 767
 768     /**
 769      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 770      *
 771      * Dispatches the operation flow to the right method.
 772      */
 773     @Override
 774     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 775
 776         if (operation instanceof OwnCloudServerCheckOperation) {
 777             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 778
 779         } else if (operation instanceof OAuth2GetAccessToken) {
 780             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 781
 782         } else if (operation instanceof ExistenceCheckOperation)  {
 783             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
 784                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 785
 786             } else {
 787                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 788             }
 789         }
 790     }
 791
 792
 793     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 794         try {
 795             dismissDialog(DIALOG_LOGIN_PROGRESS);
 796         } catch (IllegalArgumentException e) {
 797             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 798         }
 799
 800         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 801         if (result.isIdPRedirection()) {
 802             String url = result.getRedirectedLocation();
 803             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 804
 805             // Show dialog
 806             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 807             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 808
 809             mAuthStatusIcon = 0;
 810             mAuthStatusText = 0;
 811
 812         } else {
 813             mAuthStatusIcon = R.drawable.common_error;
 814             mAuthStatusText = R.string.auth_unsupported_auth_method;
 815
 816         }
 817         showAuthStatus();
 818     }
 819
 820
 821     /**
 822      * Processes the result of the server check performed when the user finishes the enter of the
 823      * server URL.
 824      *
 825      * @param operation     Server check performed.
 826      * @param result        Result of the check.
 827      */
 828     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 829         if (operation.equals(mOcServerChkOperation)) {
 830             /// save result state
 831             mServerIsChecked = true;
 832             mServerIsValid = result.isSuccess();
 833             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 834             mOcServerChkOperation = null;
 835
 836             /// update status icon and text
 837             if (mServerIsValid) {
 838                 hideRefreshButton();
 839             } else {
 840                 showRefreshButton();
 841             }
 842             updateServerStatusIconAndText(result);
 843             showServerStatus();
 844
 845             /// very special case (TODO: move to a common place for all the remote operations)
 846             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 847                 mLastSslUntrustedServerResult = result;
 848                 showDialog(DIALOG_SSL_VALIDATOR);
 849             }
 850
 851             /// retrieve discovered version and normalize server URL
 852             mDiscoveredVersion = operation.getDiscoveredVersion();
 853             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 854
 855             /// allow or not the user try to access the server
 856             mOkButton.setEnabled(mServerIsValid);
 857
 858         }   // else nothing ; only the last check operation is considered;
 859         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 860     }
 861
 862
 863     private String normalizeUrl(String url) {
 864         if (url != null && url.length() > 0) {
 865             url = url.trim();
 866             if (!url.toLowerCase().startsWith("http://") &&
 867                     !url.toLowerCase().startsWith("https://")) {
 868                 if (mIsSslConn) {
 869                     url = "https://" + url;
 870                 } else {
 871                     url = "http://" + url;
 872                 }
 873             }
 874
 875             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 876             url = trimUrlWebdav(url);
 877
 878             if (url.endsWith("/")) {
 879                 url = url.substring(0, url.length() - 1);
 880             }
 881
 882         }
 883         return (url != null ? url : "");
 884     }
 885
 886
 887     private String trimUrlWebdav(String url){
 888         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 889             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 890         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 891             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 892         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 893             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 894         }
 895         return (url != null ? url : "");
 896     }
 897
 898
 899     /**
 900      * Chooses the right icon and text to show to the user for the received operation result.
 901      *
 902      * @param result    Result of a remote operation performed in this activity
 903      */
 904     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 905         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 906
 907         switch (result.getCode()) {
 908         case OK_SSL:
 909             mServerStatusIcon = android.R.drawable.ic_secure;
 910             mServerStatusText = R.string.auth_secure_connection;
 911             break;
 912
 913         case OK_NO_SSL:
 914         case OK:
 915             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 916                 mServerStatusText = R.string.auth_connection_established;
 917                 mServerStatusIcon = R.drawable.ic_ok;
 918             } else {
 919                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 920                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 921             }
 922             break;
 923
 924         case NO_NETWORK_CONNECTION:
 925             mServerStatusIcon = R.drawable.no_network;
 926             mServerStatusText = R.string.auth_no_net_conn_title;
 927             break;
 928
 929         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 930             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 931             break;
 932         case BAD_OC_VERSION:
 933             mServerStatusText = R.string.auth_bad_oc_version_title;
 934             break;
 935         case WRONG_CONNECTION:
 936             mServerStatusText = R.string.auth_wrong_connection_title;
 937             break;
 938         case TIMEOUT:
 939             mServerStatusText = R.string.auth_timeout_title;
 940             break;
 941         case INCORRECT_ADDRESS:
 942             mServerStatusText = R.string.auth_incorrect_address_title;
 943             break;
 944         case SSL_ERROR:
 945             mServerStatusText = R.string.auth_ssl_general_error_title;
 946             break;
 947         case UNAUTHORIZED:
 948             mServerStatusText = R.string.auth_unauthorized;
 949             break;
 950         case HOST_NOT_AVAILABLE:
 951             mServerStatusText = R.string.auth_unknown_host_title;
 952             break;
 953         case INSTANCE_NOT_CONFIGURED:
 954             mServerStatusText = R.string.auth_not_configured_title;
 955             break;
 956         case FILE_NOT_FOUND:
 957             mServerStatusText = R.string.auth_incorrect_path_title;
 958             break;
 959         case OAUTH2_ERROR:
 960             mServerStatusText = R.string.auth_oauth_error;
 961             break;
 962         case OAUTH2_ERROR_ACCESS_DENIED:
 963             mServerStatusText = R.string.auth_oauth_error_access_denied;
 964             break;
 965         case UNHANDLED_HTTP_CODE:
 966         case UNKNOWN_ERROR:
 967             mServerStatusText = R.string.auth_unknown_error_title;
 968             break;
 969         default:
 970             mServerStatusText = 0;
 971             mServerStatusIcon = 0;
 972         }
 973     }
 974
 975
 976     /**
 977      * Chooses the right icon and text to show to the user for the received operation result.
 978      *
 979      * @param result    Result of a remote operation performed in this activity
 980      */
 981     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 982         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 983
 984         switch (result.getCode()) {
 985         case OK_SSL:
 986             mAuthStatusIcon = android.R.drawable.ic_secure;
 987             mAuthStatusText = R.string.auth_secure_connection;
 988             break;
 989
 990         case OK_NO_SSL:
 991         case OK:
 992             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 993                 mAuthStatusText = R.string.auth_connection_established;
 994                 mAuthStatusIcon = R.drawable.ic_ok;
 995             } else {
 996                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 997                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 998             }
 999             break;
1000
1001         case NO_NETWORK_CONNECTION:
1002             mAuthStatusIcon = R.drawable.no_network;
1003             mAuthStatusText = R.string.auth_no_net_conn_title;
1004             break;
1005
1006         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1007             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1008             break;
1009         case BAD_OC_VERSION:
1010             mAuthStatusText = R.string.auth_bad_oc_version_title;
1011             break;
1012         case WRONG_CONNECTION:
1013             mAuthStatusText = R.string.auth_wrong_connection_title;
1014             break;
1015         case TIMEOUT:
1016             mAuthStatusText = R.string.auth_timeout_title;
1017             break;
1018         case INCORRECT_ADDRESS:
1019             mAuthStatusText = R.string.auth_incorrect_address_title;
1020             break;
1021         case SSL_ERROR:
1022             mAuthStatusText = R.string.auth_ssl_general_error_title;
1023             break;
1024         case UNAUTHORIZED:
1025             mAuthStatusText = R.string.auth_unauthorized;
1026             break;
1027         case HOST_NOT_AVAILABLE:
1028             mAuthStatusText = R.string.auth_unknown_host_title;
1029             break;
1030         case INSTANCE_NOT_CONFIGURED:
1031             mAuthStatusText = R.string.auth_not_configured_title;
1032             break;
1033         case FILE_NOT_FOUND:
1034             mAuthStatusText = R.string.auth_incorrect_path_title;
1035             break;
1036         case OAUTH2_ERROR:
1037             mAuthStatusText = R.string.auth_oauth_error;
1038             break;
1039         case OAUTH2_ERROR_ACCESS_DENIED:
1040             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1041             break;
1042         case ACCOUNT_NOT_NEW:
1043             mAuthStatusText = R.string.auth_account_not_new;
1044             break;
1045         case ACCOUNT_NOT_THE_SAME:
1046             mAuthStatusText = R.string.auth_account_not_the_same;
1047             break;
1048         case UNHANDLED_HTTP_CODE:
1049         case UNKNOWN_ERROR:
1050             mAuthStatusText = R.string.auth_unknown_error_title;
1051             break;
1052         default:
1053             mAuthStatusText = 0;
1054             mAuthStatusIcon = 0;
1055         }
1056     }
1057
1058
1059     /**
1060      * Processes the result of the request for and access token send
1061      * to an OAuth authorization server.
1062      *
1063      * @param operation     Operation performed requesting the access token.
1064      * @param result        Result of the operation.
1065      */
1066     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1067         try {
1068             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1069         } catch (IllegalArgumentException e) {
1070             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1071         }
1072
1073         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1074         if (result.isSuccess() && webdav_path != null) {
1075             /// be gentle with the user
1076             showDialog(DIALOG_LOGIN_PROGRESS);
1077
1078             /// time to test the retrieved access token on the ownCloud server
1079             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1080             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1081             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1082             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1083             client.setBearerCredentials(mAuthToken);
1084             mAuthCheckOperation.execute(client, this, mHandler);
1085
1086         } else {
1087             updateAuthStatusIconAndText(result);
1088             showAuthStatus();
1089             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1090         }
1091     }
1092
1093
1094     /**
1095      * Processes the result of the access check performed to try the user credentials.
1096      *
1097      * Creates a new account through the AccountManager.
1098      *
1099      * @param operation     Access check performed.
1100      * @param result        Result of the operation.
1101      */
1102     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1103         try {
1104             dismissDialog(DIALOG_LOGIN_PROGRESS);
1105         } catch (IllegalArgumentException e) {
1106             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1107         }
1108
1109         if (result.isSuccess()) {
1110             Log_OC.d(TAG, "Successful access - time to save the account");
1111
1112             boolean success = false;
1113             if (mAction == ACTION_CREATE) {
1114                 success = createAccount();
1115
1116             } else {
1117                 success = updateToken();
1118             }
1119
1120             if (success) {
1121                 finish();
1122             }
1123
1124         } else if (result.isServerFail() || result.isException()) {
1125             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1126             mServerIsChecked = true;
1127             mServerIsValid = false;
1128             mIsSslConn = false;
1129             mOcServerChkOperation = null;
1130             mDiscoveredVersion = null;
1131             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1132
1133             // update status icon and text
1134             updateServerStatusIconAndText(result);
1135             showServerStatus();
1136             mAuthStatusIcon = 0;
1137             mAuthStatusText = 0;
1138             showAuthStatus();
1139
1140             // update input controls state
1141             showRefreshButton();
1142             mOkButton.setEnabled(false);
1143
1144             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1145             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1146                 mLastSslUntrustedServerResult = result;
1147                 showDialog(DIALOG_SSL_VALIDATOR);
1148             }
1149
1150         } else {    // authorization fail due to client side - probably wrong credentials
1151             updateAuthStatusIconAndText(result);
1152             showAuthStatus();
1153             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1154         }
1155
1156     }
1157
1158
1159     /**
1160      * Sets the proper response to get that the Account Authenticator that started this activity saves
1161      * a new authorization token for mAccount.
1162      */
1163     private boolean updateToken() {
1164         Bundle response = new Bundle();
1165         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1166         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1167
1168         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1169             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1170             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1171             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1172
1173         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1174             String username = getUserNameForSamlSso();
1175             if (!mUsernameInput.getText().toString().equals(username)) {
1176                 // fail - not a new account, but an existing one; disallow
1177                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1178                 updateAuthStatusIconAndText(result);
1179                 showAuthStatus();
1180                 Log_OC.d(TAG, result.getLogMessage());
1181
1182                 return false;
1183             }
1184
1185             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1186             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1187             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1188
1189         } else {
1190             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1191             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1192         }
1193         setAccountAuthenticatorResult(response);
1194
1195         return true;
1196     }
1197
1198
1199     /**
1200      * Creates a new account through the Account Authenticator that started this activity.
1201      *
1202      * This makes the account permanent.
1203      *
1204      * TODO Decide how to name the OAuth accounts
1205      */
1206     private boolean createAccount() {
1207         /// create and save new ownCloud account
1208         boolean isOAuth = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType);
1209         boolean isSaml =  AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType);
1210
1211         Uri uri = Uri.parse(mHostBaseUrl);
1212         String username = mUsernameInput.getText().toString().trim();
1213         if (isSaml) {
1214             username = getUserNameForSamlSso();
1215
1216         } else if (isOAuth) {
1217             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1218         }
1219         String accountName = username + "@" + uri.getHost();
1220         if (uri.getPort() >= 0) {
1221             accountName += ":" + uri.getPort();
1222         }
1223         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1224         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1225             // fail - not a new account, but an existing one; disallow
1226             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1227             updateAuthStatusIconAndText(result);
1228             showAuthStatus();
1229             Log_OC.d(TAG, result.getLogMessage());
1230             return false;
1231
1232         } else {
1233
1234             if (isOAuth || isSaml) {
1235                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1236             } else {
1237                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1238             }
1239
1240             /// add the new account as default in preferences, if there is none already
1241             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1242             if (defaultAccount == null) {
1243                 SharedPreferences.Editor editor = PreferenceManager
1244                         .getDefaultSharedPreferences(this).edit();
1245                 editor.putString("select_oc_account", accountName);
1246                 editor.commit();
1247             }
1248
1249             /// prepare result to return to the Authenticator
1250             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1251             final Intent intent = new Intent();
1252             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1253             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1254             /*if (!isOAuth)
1255                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); */
1256             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1257             if (isOAuth || isSaml) {
1258                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1259             }
1260             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1261             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1262             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1263             if (isSaml) {
1264                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1265             } else if (isOAuth) {
1266                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1267             }
1268
1269             setAccountAuthenticatorResult(intent.getExtras());
1270             setResult(RESULT_OK, intent);
1271
1272             /// immediately request for the synchronization of the new account
1273             Bundle bundle = new Bundle();
1274             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1275             ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1276             syncAccount();
1277 //          Bundle bundle = new Bundle();
1278 //          bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1279 //          ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1280             return true;
1281         }
1282     }
1283
1284
1285     private String getUserNameForSamlSso() {
1286         if (mAuthToken != null) {
1287             String [] cookies = mAuthToken.split(";");
1288             for (int i=0; i<cookies.length; i++) {
1289                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1290                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1291                     return value;
1292                 }
1293             }
1294         }
1295         return "";
1296     }
1297
1298
1299     /**
1300      * {@inheritDoc}
1301      *
1302      * Necessary to update the contents of the SSL Dialog
1303      *
1304      * TODO move to some common place for all possible untrusted SSL failures
1305      */
1306     @Override
1307     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1308         switch (id) {
1309         case DIALOG_LOGIN_PROGRESS:
1310         case DIALOG_CERT_NOT_SAVED:
1311         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1312             break;
1313         case DIALOG_SSL_VALIDATOR: {
1314             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1315             break;
1316         }
1317         default:
1318             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1319         }
1320     }
1321
1322
1323     /**
1324      * {@inheritDoc}
1325      */
1326     @Override
1327     protected Dialog onCreateDialog(int id) {
1328         Dialog dialog = null;
1329         switch (id) {
1330         case DIALOG_LOGIN_PROGRESS: {
1331             /// simple progress dialog
1332             ProgressDialog working_dialog = new ProgressDialog(this);
1333             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1334             working_dialog.setIndeterminate(true);
1335             working_dialog.setCancelable(true);
1336             working_dialog
1337             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1338                 @Override
1339                 public void onCancel(DialogInterface dialog) {
1340                     /// TODO study if this is enough
1341                     Log_OC.i(TAG, "Login canceled");
1342                     if (mOperationThread != null) {
1343                         mOperationThread.interrupt();
1344                         finish();
1345                     }
1346                 }
1347             });
1348             dialog = working_dialog;
1349             break;
1350         }
1351         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1352             ProgressDialog working_dialog = new ProgressDialog(this);
1353             working_dialog.setMessage(String.format("Getting authorization"));
1354             working_dialog.setIndeterminate(true);
1355             working_dialog.setCancelable(true);
1356             working_dialog
1357             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1358                 @Override
1359                 public void onCancel(DialogInterface dialog) {
1360                     Log_OC.i(TAG, "Login canceled");
1361                     finish();
1362                 }
1363             });
1364             dialog = working_dialog;
1365             break;
1366         }
1367         case DIALOG_SSL_VALIDATOR: {
1368             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1369             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1370             break;
1371         }
1372         case DIALOG_CERT_NOT_SAVED: {
1373             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1374             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1375             builder.setCancelable(false);
1376             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1377                 @Override
1378                 public void onClick(DialogInterface dialog, int which) {
1379                     dialog.dismiss();
1380                 };
1381             });
1382             dialog = builder.create();
1383             break;
1384         }
1385         default:
1386             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1387         }
1388         return dialog;
1389     }
1390
1391
1392     /**
1393      * Starts and activity to open the 'new account' page in the ownCloud web site
1394      *
1395      * @param view      'Account register' button
1396      */
1397     public void onRegisterClick(View view) {
1398         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1399         setResult(RESULT_CANCELED);
1400         startActivity(register);
1401     }
1402
1403
1404     /**
1405      * Updates the content and visibility state of the icon and text associated
1406      * to the last check on the ownCloud server.
1407      */
1408     private void showServerStatus() {
1409         TextView tv = (TextView) findViewById(R.id.server_status_text);
1410
1411         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1412             tv.setVisibility(View.INVISIBLE);
1413
1414         } else {
1415             tv.setText(mServerStatusText);
1416             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1417             tv.setVisibility(View.VISIBLE);
1418         }
1419
1420     }
1421
1422
1423     /**
1424      * Updates the content and visibility state of the icon and text associated
1425      * to the interactions with the OAuth authorization server.
1426      */
1427     private void showAuthStatus() {
1428         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1429             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1430
1431         } else {
1432             mAuthStatusLayout.setText(mAuthStatusText);
1433             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1434             mAuthStatusLayout.setVisibility(View.VISIBLE);
1435         }
1436     }
1437
1438
1439     private void showRefreshButton() {
1440         mRefreshButton.setVisibility(View.VISIBLE);
1441     }
1442
1443     private void hideRefreshButton() {
1444         mRefreshButton.setVisibility(View.GONE);
1445     }
1446
1447     /**
1448      * Called when the refresh button in the input field for ownCloud host is clicked.
1449      *
1450      * Performs a new check on the URL in the input field.
1451      *
1452      * @param view      Refresh 'button'
1453      */
1454     public void onRefreshClick(View view) {
1455         checkOcServer();
1456     }
1457
1458
1459     /**
1460      * Called when the eye icon in the password field is clicked.
1461      *
1462      * Toggles the visibility of the password in the field.
1463      */
1464     public void onViewPasswordClick() {
1465         int selectionStart = mPasswordInput.getSelectionStart();
1466         int selectionEnd = mPasswordInput.getSelectionEnd();
1467         if (isPasswordVisible()) {
1468             hidePassword();
1469         } else {
1470             showPassword();
1471         }
1472         mPasswordInput.setSelection(selectionStart, selectionEnd);
1473     }
1474
1475
1476     /**
1477      * Called when the checkbox for OAuth authorization is clicked.
1478      *
1479      * Hides or shows the input fields for user & password.
1480      *
1481      * @param view      'View password' 'button'
1482      */
1483     public void onCheckClick(View view) {
1484         CheckBox oAuth2Check = (CheckBox)view;
1485         if (oAuth2Check.isChecked()) {
1486             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
1487         } else {
1488             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
1489         }
1490         adaptViewAccordingToAuthenticationMethod();
1491     }
1492
1493
1494     /**
1495      * Changes the visibility of input elements depending on
1496      * the current authorization method.
1497      */
1498     private void adaptViewAccordingToAuthenticationMethod () {
1499         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1500             // OAuth 2 authorization
1501             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1502             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1503             mUsernameInput.setVisibility(View.GONE);
1504             mPasswordInput.setVisibility(View.GONE);
1505
1506         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1507             // SAML-based web Single Sign On
1508             mOAuthAuthEndpointText.setVisibility(View.GONE);
1509             mOAuthTokenEndpointText.setVisibility(View.GONE);
1510             mUsernameInput.setVisibility(View.GONE);
1511             mPasswordInput.setVisibility(View.GONE);
1512         } else {
1513             // basic HTTP authorization
1514             mOAuthAuthEndpointText.setVisibility(View.GONE);
1515             mOAuthTokenEndpointText.setVisibility(View.GONE);
1516             mUsernameInput.setVisibility(View.VISIBLE);
1517             mPasswordInput.setVisibility(View.VISIBLE);
1518         }
1519     }
1520
1521     /**
1522      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1523      */
1524     public void onSavedCertificate() {
1525         checkOcServer();
1526     }
1527
1528     /**
1529      * Called from SslValidatorDialog when a new server certificate could not be saved
1530      * when the user requested it.
1531      */
1532     @Override
1533     public void onFailedSavingCertificate() {
1534         showDialog(DIALOG_CERT_NOT_SAVED);
1535     }
1536
1537
1538     /**
1539      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1540      *
1541      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1542      *  or to throw the server test when the only field on screen is the URL input field.
1543      */
1544     @Override
1545     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1546         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1547             if (mOkButton.isEnabled()) {
1548                 mOkButton.performClick();
1549             }
1550
1551         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1552             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1553                 checkOcServer();
1554             }
1555         }
1556         return false;   // always return false to grant that the software keyboard is hidden anyway
1557     }
1558
1559
1560     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1561
1562         private int fuzz = 75;
1563
1564         /**
1565          * {@inheritDoc}
1566          */
1567         @Override
1568         public boolean onTouch(View view, MotionEvent event) {
1569             Drawable rightDrawable = null;
1570             if (view instanceof TextView) {
1571                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1572                 if (drawables.length > 2) {
1573                     rightDrawable = drawables[2];
1574                 }
1575             }
1576             if (rightDrawable != null) {
1577                 final int x = (int) event.getX();
1578                 final int y = (int) event.getY();
1579                 final Rect bounds = rightDrawable.getBounds();
1580                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1581                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1582
1583                     return onDrawableTouch(event);
1584                 }
1585             }
1586             return false;
1587         }
1588
1589         public abstract boolean onDrawableTouch(final MotionEvent event);
1590     }
1591
1592
1593     public void onSamlDialogSuccess(String sessionCookie){
1594         mAuthToken = sessionCookie;
1595
1596         if (sessionCookie != null && sessionCookie.length() > 0) {
1597             mAuthToken = sessionCookie;
1598             boolean success = false;
1599             if (mAction == ACTION_CREATE) {
1600                 success = createAccount();
1601
1602             } else {
1603                 success = updateToken();
1604             }
1605             if (success) {
1606                 finish();
1607             }
1608         }
1609
1610
1611     }
1612
1613
1614     @Override
1615     public void onSsoFinished(String sessionCookies) {
1616         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1617
1618         if (sessionCookies != null && sessionCookies.length() > 0) {
1619             Log_OC.d(TAG, "Successful SSO - time to save the account");
1620             onSamlDialogSuccess(sessionCookies);
1621             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1622             if (fd != null && fd instanceof SherlockDialogFragment) {
1623                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1624                 if (d != null && d.isShowing()) {
1625                     d.dismiss();
1626                 }
1627             }
1628
1629         } else {
1630             // TODO - show fail
1631             Log_OC.d(TAG, "SSO failed");
1632         }
1633
1634     }
1635
1636     /** Show auth_message
1637      *
1638      * @param message
1639      */
1640     private void showAuthMessage(String message) {
1641        mAuthMessage.setVisibility(View.VISIBLE);
1642        mAuthMessage.setText(message);
1643     }
1644
1645     private void hideAuthMessage() {
1646         mAuthMessage.setVisibility(View.GONE);
1647     }
1648
1649     private void syncAccount(){
1650         /// immediately request for the synchronization of the new account
1651         Bundle bundle = new Bundle();
1652         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1653         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1654     }
1655
1656     @Override
1657     public boolean onTouchEvent(MotionEvent event) {
1658         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
1659                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1660             checkOcServer();
1661         }
1662         return super.onTouchEvent(event);
1663     }
1664 }