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.DialogInterface;
  27 import android.content.Intent;
  28 import android.content.SharedPreferences;
  29 import android.graphics.Rect;
  30 import android.graphics.drawable.Drawable;
  31 import android.net.Uri;
  32 import android.os.Bundle;
  33 import android.os.Handler;
  34 import android.preference.PreferenceManager;
  35 import android.support.v4.app.Fragment;
  36 import android.text.Editable;
  37 import android.text.InputType;
  38 import android.text.TextWatcher;
  39 import android.util.Log;
  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.MainApp;
  55 import com.owncloud.android.R;
  56 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  57 import com.owncloud.android.lib.accounts.AccountTypeUtils;
  58 import com.owncloud.android.lib.accounts.OwnCloudAccount;
  59 import com.owncloud.android.lib.network.OwnCloudClientFactory;
  60 import com.owncloud.android.lib.network.OwnCloudClient;
  61 import com.owncloud.android.operations.OAuth2GetAccessToken;
  62 import com.owncloud.android.lib.operations.common.OnRemoteOperationListener;
  63 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  64 import com.owncloud.android.lib.operations.common.RemoteOperation;
  65 import com.owncloud.android.lib.operations.common.RemoteOperationResult;
  66 import com.owncloud.android.lib.operations.common.RemoteOperationResult.ResultCode;
  67 import com.owncloud.android.lib.operations.remote.ExistenceCheckRemoteOperation;
  68 import com.owncloud.android.lib.operations.remote.GetUserNameRemoteOperation;
  69 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  71 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  72 import com.owncloud.android.utils.Log_OC;
  73 import com.owncloud.android.lib.utils.OwnCloudVersion;
  74
  75 /**
  76  * This Activity is used to add an ownCloud account to the App
  77  *
  78  * @author Bartek Przybylski
  79  * @author David A. Velasco
  80  */
  81 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  82 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  83
  84     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  85
  86     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  87     public static final String EXTRA_USER_NAME = "USER_NAME";
  88     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  89     public static final String EXTRA_ACTION = "ACTION";
  90     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  91
  92     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  93     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  94     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  95     private static final String KEY_OC_VERSION = "OC_VERSION";
  96     private static final String KEY_ACCOUNT = "ACCOUNT";
  97     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  98     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  99     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
 100     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 101     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 102     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 103     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 104     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 105     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 106     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 107
 108     private static final String AUTH_ON = "on";
 109     private static final String AUTH_OFF = "off";
 110     private static final String AUTH_OPTIONAL = "optional";
 111
 112     private static final int DIALOG_LOGIN_PROGRESS = 0;
 113     private static final int DIALOG_SSL_VALIDATOR = 1;
 114     private static final int DIALOG_CERT_NOT_SAVED = 2;
 115     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 116
 117     public static final byte ACTION_CREATE = 0;
 118     public static final byte ACTION_UPDATE_TOKEN = 1;
 119
 120     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 121
 122     private String mHostBaseUrl;
 123     private OwnCloudVersion mDiscoveredVersion;
 124
 125     private String mAuthMessageText;
 126     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 127     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 128     private int mAuthStatusText, mAuthStatusIcon;
 129     private TextView mAuthStatusLayout;
 130
 131     private final Handler mHandler = new Handler();
 132     private Thread mOperationThread;
 133     private OwnCloudServerCheckOperation mOcServerChkOperation;
 134     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 135     private RemoteOperationResult mLastSslUntrustedServerResult;
 136
 137     private Uri mNewCapturedUriFromOAuth2Redirection;
 138
 139     private AccountManager mAccountMgr;
 140     private boolean mJustCreated;
 141     private byte mAction;
 142     private Account mAccount;
 143
 144     private TextView mAuthMessage;
 145
 146     private EditText mHostUrlInput;
 147     private boolean mHostUrlInputEnabled;
 148     private View mRefreshButton;
 149
 150     private String mAuthTokenType;
 151
 152     private EditText mUsernameInput;
 153     private EditText mPasswordInput;
 154
 155     private CheckBox mOAuth2Check;
 156
 157     private TextView mOAuthAuthEndpointText;
 158     private TextView mOAuthTokenEndpointText;
 159
 160     private SamlWebViewDialog mSamlDialog;
 161
 162     private View mOkButton;
 163
 164     private String mAuthToken;
 165
 166     private boolean mResumed; // Control if activity is resumed
 167
 168
 169     /**
 170      * {@inheritDoc}
 171      *
 172      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 173      */
 174     @Override
 175     protected void onCreate(Bundle savedInstanceState) {
 176         super.onCreate(savedInstanceState);
 177         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 178
 179         /// set view and get references to view elements
 180         setContentView(R.layout.account_setup);
 181         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 182         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 183         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 184         mUsernameInput = (EditText) findViewById(R.id.account_username);
 185         mPasswordInput = (EditText) findViewById(R.id.account_password);
 186         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 187         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 188         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 189         mOkButton = findViewById(R.id.buttonOK);
 190         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 191
 192         /// set Host Url Input Enabled
 193         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 194
 195         /// set visibility of link for new users
 196         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 197         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 198         if (welcomeLink != null) {
 199             if (accountRegisterVisibility) {
 200                 welcomeLink.setVisibility(View.VISIBLE);
 201                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 202             } else {
 203                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 204             }
 205         }
 206
 207         /// initialization
 208         mAccountMgr = AccountManager.get(this);
 209         mNewCapturedUriFromOAuth2Redirection = null;
 210         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 211         mAccount = null;
 212         mHostBaseUrl = "";
 213         boolean refreshButtonEnabled = false;
 214
 215         // URL input configuration applied
 216         if (!mHostUrlInputEnabled)
 217         {
 218             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 219             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 220
 221         } else {
 222             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 223         }
 224
 225         if (savedInstanceState == null) {
 226             mResumed = false;
 227             /// connection state and info
 228             mAuthMessageVisibility = View.GONE;
 229             mServerStatusText = mServerStatusIcon = 0;
 230             mServerIsValid = false;
 231             mServerIsChecked = false;
 232             mIsSslConn = false;
 233             mAuthStatusText = mAuthStatusIcon = 0;
 234
 235             /// retrieve extras from intent
 236             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 237             if (mAccount != null) {
 238                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 239                 if (ocVersion != null) {
 240                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 241                 }
 242                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 243                 mHostUrlInput.setText(mHostBaseUrl);
 244                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 245                 mUsernameInput.setText(userName);
 246             }
 247             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 248             mJustCreated = true;
 249
 250             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 251                 checkOcServer();
 252             }
 253
 254         } else {
 255             mResumed = true;
 256             /// connection state and info
 257             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 258             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 259             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 260             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 261             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 262             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 263             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 264             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 265             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 266             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 267                 showPassword();
 268             }
 269
 270             /// server data
 271             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 272             if (ocVersion != null) {
 273                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 274             }
 275             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 276
 277             // account data, if updating
 278             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 279             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 280             if (mAuthTokenType == null) {
 281                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 282
 283             }
 284
 285             // check if server check was interrupted by a configuration change
 286             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 287                 checkOcServer();
 288             }
 289
 290             // refresh button enabled
 291             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 292
 293
 294         }
 295
 296         if (mAuthMessageVisibility== View.VISIBLE) {
 297             showAuthMessage(mAuthMessageText);
 298         }
 299         else {
 300             hideAuthMessage();
 301         }
 302         adaptViewAccordingToAuthenticationMethod();
 303         showServerStatus();
 304         showAuthStatus();
 305
 306         if (mAction == ACTION_UPDATE_TOKEN) {
 307             /// lock things that should not change
 308             mHostUrlInput.setEnabled(false);
 309             mHostUrlInput.setFocusable(false);
 310             mUsernameInput.setEnabled(false);
 311             mUsernameInput.setFocusable(false);
 312             mOAuth2Check.setVisibility(View.GONE);
 313         }
 314
 315         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 316         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 317         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 318
 319         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 320                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 321             mOAuth2Check.setVisibility(View.GONE);
 322         }
 323
 324         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 325
 326         /// bind view elements to listeners and other friends
 327         mHostUrlInput.setOnFocusChangeListener(this);
 328         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 329         mHostUrlInput.setOnEditorActionListener(this);
 330         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 331
 332             @Override
 333             public void afterTextChanged(Editable s) {
 334                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 335                     mOkButton.setEnabled(false);
 336                 }
 337             }
 338
 339             @Override
 340             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 341             }
 342
 343             @Override
 344             public void onTextChanged(CharSequence s, int start, int before, int count) {
 345                 if (!mResumed) {
 346                     mAuthStatusIcon = 0;
 347                     mAuthStatusText = 0;
 348                     showAuthStatus();
 349                 }
 350                 mResumed = false;
 351             }
 352         });
 353
 354         mPasswordInput.setOnFocusChangeListener(this);
 355         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 356         mPasswordInput.setOnEditorActionListener(this);
 357         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 358             @Override
 359             public boolean onDrawableTouch(final MotionEvent event) {
 360                 if (event.getAction() == MotionEvent.ACTION_UP) {
 361                     AuthenticatorActivity.this.onViewPasswordClick();
 362                 }
 363                 return true;
 364             }
 365         });
 366
 367         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 368             @Override
 369             public boolean onTouch(View view, MotionEvent event) {
 370                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 371                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 372                             mHostUrlInput.hasFocus()) {
 373                         checkOcServer();
 374                     }
 375                 }
 376                 return false;
 377             }
 378         });
 379     }
 380
 381
 382
 383     private void initAuthorizationMethod() {
 384         boolean oAuthRequired = false;
 385         boolean samlWebSsoRequired = false;
 386
 387         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 388         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 389
 390         // TODO could be a good moment to validate the received token type, if not null
 391
 392         if (mAuthTokenType == null) {
 393             if (mAccount != null) {
 394                 /// same authentication method than the one used to create the account to update
 395                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 396                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 397
 398             } else {
 399                 /// use the one set in setup.xml
 400                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 401                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 402             }
 403             if (oAuthRequired) {
 404                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 405             } else if (samlWebSsoRequired) {
 406                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 407             } else {
 408                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 409             }
 410         }
 411
 412         if (mAccount != null) {
 413             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 414             mUsernameInput.setText(userName);
 415         }
 416
 417         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 418
 419     }
 420
 421     /**
 422      * Saves relevant state before {@link #onPause()}
 423      *
 424      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 425      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 426      *
 427      * See {@link #loadSavedInstanceState(Bundle)}
 428      */
 429     @Override
 430     protected void onSaveInstanceState(Bundle outState) {
 431         super.onSaveInstanceState(outState);
 432
 433         /// connection state and info
 434         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 435         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 436         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 437         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 438         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 439         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 440         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 441         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 442         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 443         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 444         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 445
 446         /// server data
 447         if (mDiscoveredVersion != null) {
 448             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 449         }
 450         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 451
 452         /// account data, if updating
 453         if (mAccount != null) {
 454             outState.putParcelable(KEY_ACCOUNT, mAccount);
 455         }
 456         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 457
 458         // refresh button enabled
 459         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 460
 461
 462     }
 463
 464
 465     /**
 466      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 467      * is caught here.
 468      *
 469      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 470      * AndroidManifest.xml file.
 471      */
 472     @Override
 473     protected void onNewIntent (Intent intent) {
 474         Log_OC.d(TAG, "onNewIntent()");
 475         Uri data = intent.getData();
 476         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 477             mNewCapturedUriFromOAuth2Redirection = data;
 478         }
 479     }
 480
 481
 482     /**
 483      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 484      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 485      */
 486     @Override
 487     protected void onResume() {
 488         super.onResume();
 489         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 490             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 491                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 492                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 493             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 494                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 495                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 496             } else {
 497                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 498                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 499             }
 500         }
 501
 502         if (mNewCapturedUriFromOAuth2Redirection != null) {
 503             getOAuth2AccessTokenFromCapturedRedirection();
 504         }
 505
 506         mJustCreated = false;
 507
 508     }
 509
 510
 511     /**
 512      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 513      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 514      */
 515     private void getOAuth2AccessTokenFromCapturedRedirection() {
 516         /// Parse data from OAuth redirection
 517         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 518         mNewCapturedUriFromOAuth2Redirection = null;
 519
 520         /// Showing the dialog with instructions for the user.
 521         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 522
 523         /// GET ACCESS TOKEN to the oAuth server
 524         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 525                 getString(R.string.oauth2_redirect_uri),
 526                 getString(R.string.oauth2_grant_type),
 527                 queryParameters);
 528         //OwnCloudClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 529         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 530         operation.execute(client, this, mHandler);
 531     }
 532
 533
 534
 535     /**
 536      * Handles the change of focus on the text inputs for the server URL and the password
 537      */
 538     public void onFocusChange(View view, boolean hasFocus) {
 539         if (view.getId() == R.id.hostUrlInput) {
 540             if (!hasFocus) {
 541                 onUrlInputFocusLost((TextView) view);
 542             }
 543             else {
 544                 hideRefreshButton();
 545             }
 546
 547         } else if (view.getId() == R.id.account_password) {
 548             onPasswordFocusChanged((TextView) view, hasFocus);
 549         }
 550     }
 551
 552
 553     /**
 554      * Handles changes in focus on the text input for the server URL.
 555      *
 556      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 557      * other field. The operation to check the existence of the server in the entered URL is
 558      * started.
 559      *
 560      * When hasFocus:    user 'comes back' to write again the server URL.
 561      *
 562      * @param hostInput     TextView with the URL input field receiving the change of focus.
 563      */
 564     private void onUrlInputFocusLost(TextView hostInput) {
 565         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 566             checkOcServer();
 567         } else {
 568             mOkButton.setEnabled(mServerIsValid);
 569             if (!mServerIsValid) {
 570                 showRefreshButton();
 571             }
 572         }
 573     }
 574
 575
 576     private void checkOcServer() {
 577         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 578
 579         if (!mHostUrlInputEnabled){
 580             uri = getString(R.string.server_url);
 581         }
 582
 583         mServerIsValid = false;
 584         mServerIsChecked = false;
 585         mOkButton.setEnabled(false);
 586         mDiscoveredVersion = null;
 587         hideRefreshButton();
 588         if (uri.length() != 0) {
 589             mServerStatusText = R.string.auth_testing_connection;
 590             mServerStatusIcon = R.drawable.progress_small;
 591             showServerStatus();
 592             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 593             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 594             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 595         } else {
 596             mServerStatusText = 0;
 597             mServerStatusIcon = 0;
 598             showServerStatus();
 599         }
 600     }
 601
 602
 603     /**
 604      * Handles changes in focus on the text input for the password (basic authorization).
 605      *
 606      * When (hasFocus), the button to toggle password visibility is shown.
 607      *
 608      * When (!hasFocus), the button is made invisible and the password is hidden.
 609      *
 610      * @param passwordInput    TextView with the password input field receiving the change of focus.
 611      * @param hasFocus          'True' if focus is received, 'false' if is lost
 612      */
 613     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 614         if (hasFocus) {
 615             showViewPasswordButton();
 616         } else {
 617             hidePassword();
 618             hidePasswordButton();
 619         }
 620     }
 621
 622
 623     private void showViewPasswordButton() {
 624         //int drawable = android.R.drawable.ic_menu_view;
 625         int drawable = R.drawable.ic_view;
 626         if (isPasswordVisible()) {
 627             //drawable = android.R.drawable.ic_secure;
 628             drawable = R.drawable.ic_hide;
 629         }
 630         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 631     }
 632
 633     private boolean isPasswordVisible() {
 634         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 635     }
 636
 637     private void hidePasswordButton() {
 638         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 639     }
 640
 641     private void showPassword() {
 642         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 643         showViewPasswordButton();
 644     }
 645
 646     private void hidePassword() {
 647         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 648         showViewPasswordButton();
 649     }
 650
 651
 652     /**
 653      * Cancels the authenticator activity
 654      *
 655      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 656      *
 657      * This method is bound in the layout/acceoun_setup.xml resource file.
 658      *
 659      * @param view      Cancel button
 660      */
 661     public void onCancelClick(View view) {
 662         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 663         finish();
 664     }
 665
 666
 667
 668     /**
 669      * Checks the credentials of the user in the root of the ownCloud server
 670      * before creating a new local account.
 671      *
 672      * For basic authorization, a check of existence of the root folder is
 673      * performed.
 674      *
 675      * For OAuth, starts the flow to get an access token; the credentials test
 676      * is postponed until it is available.
 677      *
 678      * IMPORTANT ENTRY POINT 4
 679      *
 680      * @param view      OK button
 681      */
 682     public void onOkClick(View view) {
 683         // this check should be unnecessary
 684         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 685             mServerStatusIcon = R.drawable.common_error;
 686             mServerStatusText = R.string.auth_wtf_reenter_URL;
 687             showServerStatus();
 688             mOkButton.setEnabled(false);
 689             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 690             return;
 691         }
 692
 693         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 694             startOauthorization();
 695         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 696             startSamlBasedFederatedSingleSignOnAuthorization();
 697         } else {
 698             checkBasicAuthorization();
 699         }
 700     }
 701
 702
 703     /**
 704      * Tests the credentials entered by the user performing a check of existence on
 705      * the root folder of the ownCloud server.
 706      */
 707     private void checkBasicAuthorization() {
 708         /// get the path to the root folder through WebDAV from the version server
 709         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 710
 711         /// get basic credentials entered by user
 712         String username = mUsernameInput.getText().toString();
 713         String password = mPasswordInput.getText().toString();
 714
 715         /// be gentle with the user
 716         showDialog(DIALOG_LOGIN_PROGRESS);
 717
 718         /// test credentials accessing the root folder
 719         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 720         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 721         client.setBasicCredentials(username, password);
 722         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 723     }
 724
 725
 726     /**
 727      * Starts the OAuth 'grant type' flow to get an access token, with
 728      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 729      */
 730     private void startOauthorization() {
 731         // be gentle with the user
 732         mAuthStatusIcon = R.drawable.progress_small;
 733         mAuthStatusText = R.string.oauth_login_connection;
 734         showAuthStatus();
 735
 736
 737         // GET AUTHORIZATION request
 738         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 739         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 740         Uri.Builder uriBuilder = uri.buildUpon();
 741         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 742         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 743         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 744         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 745         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 746         uri = uriBuilder.build();
 747         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 748         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 749         startActivity(i);
 750     }
 751
 752
 753     /**
 754      * Starts the Web Single Sign On flow to get access to the root folder
 755      * in the server.
 756      */
 757     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 758         // be gentle with the user
 759         mAuthStatusIcon = R.drawable.progress_small;
 760         mAuthStatusText = R.string.auth_connecting_auth_server;
 761         showAuthStatus();
 762         showDialog(DIALOG_LOGIN_PROGRESS);
 763
 764         /// get the path to the root folder through WebDAV from the version server
 765         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 766
 767         /// test credentials accessing the root folder
 768         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 769         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 770         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 771
 772     }
 773
 774     /**
 775      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 776      *
 777      * Dispatches the operation flow to the right method.
 778      */
 779     @Override
 780     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 781
 782         if (operation instanceof OwnCloudServerCheckOperation) {
 783             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 784
 785         } else if (operation instanceof OAuth2GetAccessToken) {
 786             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 787
 788         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 789             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 790                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 791
 792             } else {
 793                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 794             }
 795         } else if (operation instanceof GetUserNameRemoteOperation) {
 796             onGetUserNameFinish((GetUserNameRemoteOperation) operation, result);
 797
 798         }
 799
 800     }
 801
 802     private void onGetUserNameFinish(GetUserNameRemoteOperation operation, RemoteOperationResult result) {
 803         if (result.isSuccess()) {
 804             boolean success = false;
 805             String username = operation.getUserName();
 806
 807             if ( mAction == ACTION_CREATE) {
 808                 mUsernameInput.setText(username);
 809                 success = createAccount();
 810             } else {
 811
 812                 if (!mUsernameInput.getText().toString().equals(username)) {
 813                     // fail - not a new account, but an existing one; disallow
 814                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 815                     updateAuthStatusIconAndText(result);
 816                     showAuthStatus();
 817                     Log_OC.d(TAG, result.getLogMessage());
 818                 } else {
 819                   updateToken();
 820                   success = true;
 821                 }
 822             }
 823
 824             if (success)
 825                 finish();
 826         } else {
 827             updateAuthStatusIconAndText(result);
 828             showAuthStatus();
 829             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
 830         }
 831
 832     }
 833
 834     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 835         try {
 836             dismissDialog(DIALOG_LOGIN_PROGRESS);
 837         } catch (IllegalArgumentException e) {
 838             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 839         }
 840
 841         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 842         if (result.isIdPRedirection()) {
 843             String url = result.getRedirectedLocation();
 844             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 845
 846             // Show dialog
 847             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 848             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 849
 850             mAuthStatusIcon = 0;
 851             mAuthStatusText = 0;
 852
 853         } else {
 854             mAuthStatusIcon = R.drawable.common_error;
 855             mAuthStatusText = R.string.auth_unsupported_auth_method;
 856
 857         }
 858         showAuthStatus();
 859     }
 860
 861
 862     /**
 863      * Processes the result of the server check performed when the user finishes the enter of the
 864      * server URL.
 865      *
 866      * @param operation     Server check performed.
 867      * @param result        Result of the check.
 868      */
 869     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 870         if (operation.equals(mOcServerChkOperation)) {
 871             /// save result state
 872             mServerIsChecked = true;
 873             mServerIsValid = result.isSuccess();
 874             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 875             mOcServerChkOperation = null;
 876
 877             /// update status icon and text
 878             if (mServerIsValid) {
 879                 hideRefreshButton();
 880             } else {
 881                 showRefreshButton();
 882             }
 883             updateServerStatusIconAndText(result);
 884             showServerStatus();
 885
 886             /// very special case (TODO: move to a common place for all the remote operations)
 887             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 888                 mLastSslUntrustedServerResult = result;
 889                 showDialog(DIALOG_SSL_VALIDATOR);
 890             }
 891
 892             /// retrieve discovered version and normalize server URL
 893             mDiscoveredVersion = operation.getDiscoveredVersion();
 894             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 895
 896             /// allow or not the user try to access the server
 897             mOkButton.setEnabled(mServerIsValid);
 898
 899         }   // else nothing ; only the last check operation is considered;
 900         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 901     }
 902
 903
 904     private String normalizeUrl(String url) {
 905         if (url != null && url.length() > 0) {
 906             url = url.trim();
 907             if (!url.toLowerCase().startsWith("http://") &&
 908                     !url.toLowerCase().startsWith("https://")) {
 909                 if (mIsSslConn) {
 910                     url = "https://" + url;
 911                 } else {
 912                     url = "http://" + url;
 913                 }
 914             }
 915
 916             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 917             url = trimUrlWebdav(url);
 918
 919             if (url.endsWith("/")) {
 920                 url = url.substring(0, url.length() - 1);
 921             }
 922
 923         }
 924         return (url != null ? url : "");
 925     }
 926
 927
 928     private String trimUrlWebdav(String url){
 929         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 930             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 931         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 932             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 933         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 934             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 935         }
 936         return (url != null ? url : "");
 937     }
 938
 939
 940     /**
 941      * Chooses the right icon and text to show to the user for the received operation result.
 942      *
 943      * @param result    Result of a remote operation performed in this activity
 944      */
 945     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 946         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 947
 948         switch (result.getCode()) {
 949         case OK_SSL:
 950             mServerStatusIcon = android.R.drawable.ic_secure;
 951             mServerStatusText = R.string.auth_secure_connection;
 952             break;
 953
 954         case OK_NO_SSL:
 955         case OK:
 956             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 957                 mServerStatusText = R.string.auth_connection_established;
 958                 mServerStatusIcon = R.drawable.ic_ok;
 959             } else {
 960                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 961                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 962             }
 963             break;
 964
 965         case NO_NETWORK_CONNECTION:
 966             mServerStatusIcon = R.drawable.no_network;
 967             mServerStatusText = R.string.auth_no_net_conn_title;
 968             break;
 969
 970         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 971             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 972             break;
 973         case BAD_OC_VERSION:
 974             mServerStatusText = R.string.auth_bad_oc_version_title;
 975             break;
 976         case WRONG_CONNECTION:
 977             mServerStatusText = R.string.auth_wrong_connection_title;
 978             break;
 979         case TIMEOUT:
 980             mServerStatusText = R.string.auth_timeout_title;
 981             break;
 982         case INCORRECT_ADDRESS:
 983             mServerStatusText = R.string.auth_incorrect_address_title;
 984             break;
 985         case SSL_ERROR:
 986             mServerStatusText = R.string.auth_ssl_general_error_title;
 987             break;
 988         case UNAUTHORIZED:
 989             mServerStatusText = R.string.auth_unauthorized;
 990             break;
 991         case HOST_NOT_AVAILABLE:
 992             mServerStatusText = R.string.auth_unknown_host_title;
 993             break;
 994         case INSTANCE_NOT_CONFIGURED:
 995             mServerStatusText = R.string.auth_not_configured_title;
 996             break;
 997         case FILE_NOT_FOUND:
 998             mServerStatusText = R.string.auth_incorrect_path_title;
 999             break;
1000         case OAUTH2_ERROR:
1001             mServerStatusText = R.string.auth_oauth_error;
1002             break;
1003         case OAUTH2_ERROR_ACCESS_DENIED:
1004             mServerStatusText = R.string.auth_oauth_error_access_denied;
1005             break;
1006         case UNHANDLED_HTTP_CODE:
1007         case UNKNOWN_ERROR:
1008             mServerStatusText = R.string.auth_unknown_error_title;
1009             break;
1010         default:
1011             mServerStatusText = 0;
1012             mServerStatusIcon = 0;
1013         }
1014     }
1015
1016
1017     /**
1018      * Chooses the right icon and text to show to the user for the received operation result.
1019      *
1020      * @param result    Result of a remote operation performed in this activity
1021      */
1022     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1023         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1024
1025         switch (result.getCode()) {
1026         case OK_SSL:
1027             mAuthStatusIcon = android.R.drawable.ic_secure;
1028             mAuthStatusText = R.string.auth_secure_connection;
1029             break;
1030
1031         case OK_NO_SSL:
1032         case OK:
1033             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1034                 mAuthStatusText = R.string.auth_connection_established;
1035                 mAuthStatusIcon = R.drawable.ic_ok;
1036             } else {
1037                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1038                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1039             }
1040             break;
1041
1042         case NO_NETWORK_CONNECTION:
1043             mAuthStatusIcon = R.drawable.no_network;
1044             mAuthStatusText = R.string.auth_no_net_conn_title;
1045             break;
1046
1047         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1048             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1049             break;
1050         case BAD_OC_VERSION:
1051             mAuthStatusText = R.string.auth_bad_oc_version_title;
1052             break;
1053         case WRONG_CONNECTION:
1054             mAuthStatusText = R.string.auth_wrong_connection_title;
1055             break;
1056         case TIMEOUT:
1057             mAuthStatusText = R.string.auth_timeout_title;
1058             break;
1059         case INCORRECT_ADDRESS:
1060             mAuthStatusText = R.string.auth_incorrect_address_title;
1061             break;
1062         case SSL_ERROR:
1063             mAuthStatusText = R.string.auth_ssl_general_error_title;
1064             break;
1065         case UNAUTHORIZED:
1066             mAuthStatusText = R.string.auth_unauthorized;
1067             break;
1068         case HOST_NOT_AVAILABLE:
1069             mAuthStatusText = R.string.auth_unknown_host_title;
1070             break;
1071         case INSTANCE_NOT_CONFIGURED:
1072             mAuthStatusText = R.string.auth_not_configured_title;
1073             break;
1074         case FILE_NOT_FOUND:
1075             mAuthStatusText = R.string.auth_incorrect_path_title;
1076             break;
1077         case OAUTH2_ERROR:
1078             mAuthStatusText = R.string.auth_oauth_error;
1079             break;
1080         case OAUTH2_ERROR_ACCESS_DENIED:
1081             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1082             break;
1083         case ACCOUNT_NOT_NEW:
1084             mAuthStatusText = R.string.auth_account_not_new;
1085             break;
1086         case ACCOUNT_NOT_THE_SAME:
1087             mAuthStatusText = R.string.auth_account_not_the_same;
1088             break;
1089         case UNHANDLED_HTTP_CODE:
1090         case UNKNOWN_ERROR:
1091             mAuthStatusText = R.string.auth_unknown_error_title;
1092             break;
1093         default:
1094             mAuthStatusText = 0;
1095             mAuthStatusIcon = 0;
1096         }
1097     }
1098
1099
1100     /**
1101      * Processes the result of the request for and access token send
1102      * to an OAuth authorization server.
1103      *
1104      * @param operation     Operation performed requesting the access token.
1105      * @param result        Result of the operation.
1106      */
1107     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1108         try {
1109             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1110         } catch (IllegalArgumentException e) {
1111             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1112         }
1113
1114         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1115         if (result.isSuccess() && webdav_path != null) {
1116             /// be gentle with the user
1117             showDialog(DIALOG_LOGIN_PROGRESS);
1118
1119             /// time to test the retrieved access token on the ownCloud server
1120             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1121             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1122             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1123             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1124             client.setBearerCredentials(mAuthToken);
1125             mAuthCheckOperation.execute(client, this, mHandler);
1126
1127         } else {
1128             updateAuthStatusIconAndText(result);
1129             showAuthStatus();
1130             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1131         }
1132     }
1133
1134
1135     /**
1136      * Processes the result of the access check performed to try the user credentials.
1137      *
1138      * Creates a new account through the AccountManager.
1139      *
1140      * @param operation     Access check performed.
1141      * @param result        Result of the operation.
1142      */
1143     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1144         try {
1145             dismissDialog(DIALOG_LOGIN_PROGRESS);
1146         } catch (IllegalArgumentException e) {
1147             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1148         }
1149
1150         if (result.isSuccess()) {
1151             Log_OC.d(TAG, "Successful access - time to save the account");
1152
1153             boolean success = false;
1154             if (mAction == ACTION_CREATE) {
1155                 success = createAccount();
1156
1157             } else {
1158                 updateToken();
1159                 success = true;
1160             }
1161
1162             if (success) {
1163                 finish();
1164             }
1165
1166         } else if (result.isServerFail() || result.isException()) {
1167             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1168             mServerIsChecked = true;
1169             mServerIsValid = false;
1170             mIsSslConn = false;
1171             mOcServerChkOperation = null;
1172             mDiscoveredVersion = null;
1173             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1174
1175             // update status icon and text
1176             updateServerStatusIconAndText(result);
1177             showServerStatus();
1178             mAuthStatusIcon = 0;
1179             mAuthStatusText = 0;
1180             showAuthStatus();
1181
1182             // update input controls state
1183             showRefreshButton();
1184             mOkButton.setEnabled(false);
1185
1186             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1187             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1188                 mLastSslUntrustedServerResult = result;
1189                 showDialog(DIALOG_SSL_VALIDATOR);
1190             }
1191
1192         } else {    // authorization fail due to client side - probably wrong credentials
1193             updateAuthStatusIconAndText(result);
1194             showAuthStatus();
1195             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1196         }
1197
1198     }
1199
1200
1201     /**
1202      * Sets the proper response to get that the Account Authenticator that started this activity saves
1203      * a new authorization token for mAccount.
1204      */
1205     private void updateToken() {
1206         Bundle response = new Bundle();
1207         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1208         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1209
1210         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1211             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1212             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1213             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1214
1215         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1216
1217             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1218             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1219             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1220
1221         } else {
1222             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1223             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1224         }
1225         setAccountAuthenticatorResult(response);
1226
1227     }
1228
1229
1230     /**
1231      * Creates a new account through the Account Authenticator that started this activity.
1232      *
1233      * This makes the account permanent.
1234      *
1235      * TODO Decide how to name the OAuth accounts
1236      */
1237     private boolean createAccount() {
1238         /// create and save new ownCloud account
1239         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1240         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1241
1242         Uri uri = Uri.parse(mHostBaseUrl);
1243         String username = mUsernameInput.getText().toString().trim();
1244         if (isOAuth) {
1245             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1246         }
1247         String accountName = username + "@" + uri.getHost();
1248         if (uri.getPort() >= 0) {
1249             accountName += ":" + uri.getPort();
1250         }
1251         mAccount = new Account(accountName, MainApp.getAccountType());
1252         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1253             // fail - not a new account, but an existing one; disallow
1254             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1255             updateAuthStatusIconAndText(result);
1256             showAuthStatus();
1257             Log_OC.d(TAG, result.getLogMessage());
1258             return false;
1259
1260         } else {
1261
1262             if (isOAuth || isSaml) {
1263                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1264             } else {
1265                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1266             }
1267
1268             /// add the new account as default in preferences, if there is none already
1269             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1270             if (defaultAccount == null) {
1271                 SharedPreferences.Editor editor = PreferenceManager
1272                         .getDefaultSharedPreferences(this).edit();
1273                 editor.putString("select_oc_account", accountName);
1274                 editor.commit();
1275             }
1276
1277             /// prepare result to return to the Authenticator
1278             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1279             final Intent intent = new Intent();
1280             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1281             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1282             /*if (!isOAuth)
1283                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1284             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1285             if (isOAuth || isSaml) {
1286                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1287             }
1288             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1289             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1290             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1291             if (isSaml) {
1292                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1293             } else if (isOAuth) {
1294                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1295             }
1296
1297             setAccountAuthenticatorResult(intent.getExtras());
1298             setResult(RESULT_OK, intent);
1299
1300             return true;
1301         }
1302     }
1303
1304
1305     /**
1306      * {@inheritDoc}
1307      *
1308      * Necessary to update the contents of the SSL Dialog
1309      *
1310      * TODO move to some common place for all possible untrusted SSL failures
1311      */
1312     @Override
1313     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1314         switch (id) {
1315         case DIALOG_LOGIN_PROGRESS:
1316         case DIALOG_CERT_NOT_SAVED:
1317         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1318             break;
1319         case DIALOG_SSL_VALIDATOR: {
1320             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1321             break;
1322         }
1323         default:
1324             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1325         }
1326     }
1327
1328
1329     /**
1330      * {@inheritDoc}
1331      */
1332     @Override
1333     protected Dialog onCreateDialog(int id) {
1334         Dialog dialog = null;
1335         switch (id) {
1336         case DIALOG_LOGIN_PROGRESS: {
1337             /// simple progress dialog
1338             ProgressDialog working_dialog = new ProgressDialog(this);
1339             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1340             working_dialog.setIndeterminate(true);
1341             working_dialog.setCancelable(true);
1342             working_dialog
1343             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1344                 @Override
1345                 public void onCancel(DialogInterface dialog) {
1346                     /// TODO study if this is enough
1347                     Log_OC.i(TAG, "Login canceled");
1348                     if (mOperationThread != null) {
1349                         mOperationThread.interrupt();
1350                         finish();
1351                     }
1352                 }
1353             });
1354             dialog = working_dialog;
1355             break;
1356         }
1357         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1358             ProgressDialog working_dialog = new ProgressDialog(this);
1359             working_dialog.setMessage(String.format("Getting authorization"));
1360             working_dialog.setIndeterminate(true);
1361             working_dialog.setCancelable(true);
1362             working_dialog
1363             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1364                 @Override
1365                 public void onCancel(DialogInterface dialog) {
1366                     Log_OC.i(TAG, "Login canceled");
1367                     finish();
1368                 }
1369             });
1370             dialog = working_dialog;
1371             break;
1372         }
1373         case DIALOG_SSL_VALIDATOR: {
1374             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1375             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1376             break;
1377         }
1378         case DIALOG_CERT_NOT_SAVED: {
1379             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1380             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1381             builder.setCancelable(false);
1382             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1383                 @Override
1384                 public void onClick(DialogInterface dialog, int which) {
1385                     dialog.dismiss();
1386                 };
1387             });
1388             dialog = builder.create();
1389             break;
1390         }
1391         default:
1392             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1393         }
1394         return dialog;
1395     }
1396
1397
1398     /**
1399      * Starts and activity to open the 'new account' page in the ownCloud web site
1400      *
1401      * @param view      'Account register' button
1402      */
1403     public void onRegisterClick(View view) {
1404         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1405         setResult(RESULT_CANCELED);
1406         startActivity(register);
1407     }
1408
1409
1410     /**
1411      * Updates the content and visibility state of the icon and text associated
1412      * to the last check on the ownCloud server.
1413      */
1414     private void showServerStatus() {
1415         TextView tv = (TextView) findViewById(R.id.server_status_text);
1416
1417         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1418             tv.setVisibility(View.INVISIBLE);
1419
1420         } else {
1421             tv.setText(mServerStatusText);
1422             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1423             tv.setVisibility(View.VISIBLE);
1424         }
1425
1426     }
1427
1428
1429     /**
1430      * Updates the content and visibility state of the icon and text associated
1431      * to the interactions with the OAuth authorization server.
1432      */
1433     private void showAuthStatus() {
1434         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1435             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1436
1437         } else {
1438             mAuthStatusLayout.setText(mAuthStatusText);
1439             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1440             mAuthStatusLayout.setVisibility(View.VISIBLE);
1441         }
1442     }
1443
1444
1445     private void showRefreshButton() {
1446         mRefreshButton.setVisibility(View.VISIBLE);
1447     }
1448
1449     private void hideRefreshButton() {
1450         mRefreshButton.setVisibility(View.GONE);
1451     }
1452
1453     /**
1454      * Called when the refresh button in the input field for ownCloud host is clicked.
1455      *
1456      * Performs a new check on the URL in the input field.
1457      *
1458      * @param view      Refresh 'button'
1459      */
1460     public void onRefreshClick(View view) {
1461         checkOcServer();
1462     }
1463
1464
1465     /**
1466      * Called when the eye icon in the password field is clicked.
1467      *
1468      * Toggles the visibility of the password in the field.
1469      */
1470     public void onViewPasswordClick() {
1471         int selectionStart = mPasswordInput.getSelectionStart();
1472         int selectionEnd = mPasswordInput.getSelectionEnd();
1473         if (isPasswordVisible()) {
1474             hidePassword();
1475         } else {
1476             showPassword();
1477         }
1478         mPasswordInput.setSelection(selectionStart, selectionEnd);
1479     }
1480
1481
1482     /**
1483      * Called when the checkbox for OAuth authorization is clicked.
1484      *
1485      * Hides or shows the input fields for user & password.
1486      *
1487      * @param view      'View password' 'button'
1488      */
1489     public void onCheckClick(View view) {
1490         CheckBox oAuth2Check = (CheckBox)view;
1491         if (oAuth2Check.isChecked()) {
1492             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1493         } else {
1494             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1495         }
1496         adaptViewAccordingToAuthenticationMethod();
1497     }
1498
1499
1500     /**
1501      * Changes the visibility of input elements depending on
1502      * the current authorization method.
1503      */
1504     private void adaptViewAccordingToAuthenticationMethod () {
1505         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1506             // OAuth 2 authorization
1507             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1508             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1509             mUsernameInput.setVisibility(View.GONE);
1510             mPasswordInput.setVisibility(View.GONE);
1511
1512         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1513             // SAML-based web Single Sign On
1514             mOAuthAuthEndpointText.setVisibility(View.GONE);
1515             mOAuthTokenEndpointText.setVisibility(View.GONE);
1516             mUsernameInput.setVisibility(View.GONE);
1517             mPasswordInput.setVisibility(View.GONE);
1518         } else {
1519             // basic HTTP authorization
1520             mOAuthAuthEndpointText.setVisibility(View.GONE);
1521             mOAuthTokenEndpointText.setVisibility(View.GONE);
1522             mUsernameInput.setVisibility(View.VISIBLE);
1523             mPasswordInput.setVisibility(View.VISIBLE);
1524         }
1525     }
1526
1527     /**
1528      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1529      */
1530     public void onSavedCertificate() {
1531         checkOcServer();
1532     }
1533
1534     /**
1535      * Called from SslValidatorDialog when a new server certificate could not be saved
1536      * when the user requested it.
1537      */
1538     @Override
1539     public void onFailedSavingCertificate() {
1540         showDialog(DIALOG_CERT_NOT_SAVED);
1541     }
1542
1543
1544     /**
1545      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1546      *
1547      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1548      *  or to throw the server test when the only field on screen is the URL input field.
1549      */
1550     @Override
1551     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1552         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1553             if (mOkButton.isEnabled()) {
1554                 mOkButton.performClick();
1555             }
1556
1557         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1558             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1559                 checkOcServer();
1560             }
1561         }
1562         return false;   // always return false to grant that the software keyboard is hidden anyway
1563     }
1564
1565
1566     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1567
1568         private int fuzz = 75;
1569
1570         /**
1571          * {@inheritDoc}
1572          */
1573         @Override
1574         public boolean onTouch(View view, MotionEvent event) {
1575             Drawable rightDrawable = null;
1576             if (view instanceof TextView) {
1577                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1578                 if (drawables.length > 2) {
1579                     rightDrawable = drawables[2];
1580                 }
1581             }
1582             if (rightDrawable != null) {
1583                 final int x = (int) event.getX();
1584                 final int y = (int) event.getY();
1585                 final Rect bounds = rightDrawable.getBounds();
1586                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1587                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1588
1589                     return onDrawableTouch(event);
1590                 }
1591             }
1592             return false;
1593         }
1594
1595         public abstract boolean onDrawableTouch(final MotionEvent event);
1596     }
1597
1598
1599     public void onSamlDialogSuccess(String sessionCookie) {
1600         mAuthToken = sessionCookie;
1601
1602         if (sessionCookie != null && sessionCookie.length() > 0) {
1603             mAuthToken = sessionCookie;
1604
1605             GetUserNameRemoteOperation getUserOperation = new GetUserNameRemoteOperation();
1606             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1607             client.setSsoSessionCookie(mAuthToken);
1608             getUserOperation.execute(client, this, mHandler);
1609         }
1610
1611
1612     }
1613
1614
1615     @Override
1616     public void onSsoFinished(String sessionCookies) {
1617         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1618
1619         if (sessionCookies != null && sessionCookies.length() > 0) {
1620             Log_OC.d(TAG, "Successful SSO - time to save the account");
1621             onSamlDialogSuccess(sessionCookies);
1622             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1623             if (fd != null && fd instanceof SherlockDialogFragment) {
1624                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1625                 if (d != null && d.isShowing()) {
1626                     d.dismiss();
1627                 }
1628             }
1629
1630         } else {
1631             // TODO - show fail
1632             Log_OC.d(TAG, "SSO failed");
1633         }
1634
1635     }
1636
1637     /** Show auth_message
1638      *
1639      * @param message
1640      */
1641     private void showAuthMessage(String message) {
1642        mAuthMessage.setVisibility(View.VISIBLE);
1643        mAuthMessage.setText(message);
1644     }
1645
1646     private void hideAuthMessage() {
1647         mAuthMessage.setVisibility(View.GONE);
1648     }
1649
1650     @Override
1651     public boolean onTouchEvent(MotionEvent event) {
1652         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1653                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1654             checkOcServer();
1655         }
1656         return super.onTouchEvent(event);
1657     }
1658
1659 }