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.common.accounts.AccountTypeUtils;
  58 import com.owncloud.android.lib.common.accounts.AccountUtils.Constants;
  59 import com.owncloud.android.lib.common.OwnCloudClientFactory;
  60 import com.owncloud.android.lib.common.OwnCloudClient;
  61 import com.owncloud.android.operations.OAuth2GetAccessToken;
  62
  63 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  64 import com.owncloud.android.lib.resources.status.GetRemoteStatusOperation;
  65 import com.owncloud.android.lib.common.operations.RemoteOperation;
  66 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  67 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  68 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  69 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  70
  71 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  72 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  73 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  74 import com.owncloud.android.utils.Log_OC;
  75 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  76
  77 /**
  78  * This Activity is used to add an ownCloud account to the App
  79  *
  80  * @author Bartek Przybylski
  81  * @author David A. Velasco
  82  */
  83 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  84 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  85
  86     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  87
  88     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  89     public static final String EXTRA_USER_NAME = "USER_NAME";
  90     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  91     public static final String EXTRA_ACTION = "ACTION";
  92     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  93
  94     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  95     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  96     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  97     private static final String KEY_OC_VERSION = "OC_VERSION";
  98     private static final String KEY_ACCOUNT = "ACCOUNT";
  99     private static final String KEY_SERVER_VALID = "SERVER_VALID";
 100     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
 101     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
 102     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 103     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 104     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 105     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 106     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 107     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 108     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 109     private static final String KEY_IS_SHARED_SUPPORTED = "KEY_IS_SHARE_SUPPORTED";
 110
 111     private static final String AUTH_ON = "on";
 112     private static final String AUTH_OFF = "off";
 113     private static final String AUTH_OPTIONAL = "optional";
 114
 115     private static final int DIALOG_LOGIN_PROGRESS = 0;
 116     private static final int DIALOG_SSL_VALIDATOR = 1;
 117     private static final int DIALOG_CERT_NOT_SAVED = 2;
 118     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 119
 120     public static final byte ACTION_CREATE = 0;
 121     public static final byte ACTION_UPDATE_TOKEN = 1;
 122
 123     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 124
 125     private String mHostBaseUrl;
 126     private OwnCloudVersion mDiscoveredVersion;
 127     private boolean mIsSharedSupported;
 128
 129     private String mAuthMessageText;
 130     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 131     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 132     private int mAuthStatusText, mAuthStatusIcon;
 133     private TextView mAuthStatusLayout;
 134
 135     private final Handler mHandler = new Handler();
 136     private Thread mOperationThread;
 137     private GetRemoteStatusOperation mOcServerChkOperation;
 138     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 139     private RemoteOperationResult mLastSslUntrustedServerResult;
 140
 141     private Uri mNewCapturedUriFromOAuth2Redirection;
 142
 143     private AccountManager mAccountMgr;
 144     private boolean mJustCreated;
 145     private byte mAction;
 146     private Account mAccount;
 147
 148     private TextView mAuthMessage;
 149
 150     private EditText mHostUrlInput;
 151     private boolean mHostUrlInputEnabled;
 152     private View mRefreshButton;
 153
 154     private String mAuthTokenType;
 155
 156     private EditText mUsernameInput;
 157     private EditText mPasswordInput;
 158
 159     private CheckBox mOAuth2Check;
 160
 161     private TextView mOAuthAuthEndpointText;
 162     private TextView mOAuthTokenEndpointText;
 163
 164     private SamlWebViewDialog mSamlDialog;
 165
 166     private View mOkButton;
 167
 168     private String mAuthToken;
 169
 170     private boolean mResumed; // Control if activity is resumed
 171
 172
 173     /**
 174      * {@inheritDoc}
 175      *
 176      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 177      */
 178     @Override
 179     protected void onCreate(Bundle savedInstanceState) {
 180         super.onCreate(savedInstanceState);
 181         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 182
 183         /// set view and get references to view elements
 184         setContentView(R.layout.account_setup);
 185         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 186         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 187         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 188         mUsernameInput = (EditText) findViewById(R.id.account_username);
 189         mPasswordInput = (EditText) findViewById(R.id.account_password);
 190         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 191         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 192         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 193         mOkButton = findViewById(R.id.buttonOK);
 194         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 195
 196         /// set Host Url Input Enabled
 197         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 198
 199         /// set visibility of link for new users
 200         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 201         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 202         if (welcomeLink != null) {
 203             if (accountRegisterVisibility) {
 204                 welcomeLink.setVisibility(View.VISIBLE);
 205                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 206             } else {
 207                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 208             }
 209         }
 210
 211         /// initialization
 212         mAccountMgr = AccountManager.get(this);
 213         mNewCapturedUriFromOAuth2Redirection = null;
 214         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 215         mAccount = null;
 216         mHostBaseUrl = "";
 217         boolean refreshButtonEnabled = false;
 218
 219         // URL input configuration applied
 220         if (!mHostUrlInputEnabled)
 221         {
 222             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 223             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 224
 225         } else {
 226             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 227         }
 228
 229         if (savedInstanceState == null) {
 230             mResumed = false;
 231             /// connection state and info
 232             mAuthMessageVisibility = View.GONE;
 233             mServerStatusText = mServerStatusIcon = 0;
 234             mServerIsValid = false;
 235             mServerIsChecked = false;
 236             mIsSslConn = false;
 237             mAuthStatusText = mAuthStatusIcon = 0;
 238             mIsSharedSupported = false;
 239
 240             /// retrieve extras from intent
 241             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 242             if (mAccount != null) {
 243                 String ocVersion = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_VERSION);
 244                 if (ocVersion != null) {
 245                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 246                 }
 247                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, Constants.KEY_OC_BASE_URL));
 248                 mHostUrlInput.setText(mHostBaseUrl);
 249                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 250                 mUsernameInput.setText(userName);
 251                 mIsSharedSupported = Boolean.getBoolean(mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_SHARE_API));
 252
 253             }
 254             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 255             mJustCreated = true;
 256
 257             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 258                 checkOcServer();
 259             }
 260
 261         } else {
 262             mResumed = true;
 263             /// connection state and info
 264             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 265             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 266             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 267             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 268             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 269             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 270             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 271             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 272             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 273             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 274                 showPassword();
 275             }
 276
 277             /// server data
 278             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 279             mIsSharedSupported = savedInstanceState.getBoolean(KEY_IS_SHARED_SUPPORTED, false);
 280             if (ocVersion != null) {
 281                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 282             }
 283             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 284
 285             // account data, if updating
 286             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 287             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 288             if (mAuthTokenType == null) {
 289                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 290
 291             }
 292
 293             // check if server check was interrupted by a configuration change
 294             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 295                 checkOcServer();
 296             }
 297
 298             // refresh button enabled
 299             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 300
 301
 302         }
 303
 304         if (mAuthMessageVisibility== View.VISIBLE) {
 305             showAuthMessage(mAuthMessageText);
 306         }
 307         else {
 308             hideAuthMessage();
 309         }
 310         adaptViewAccordingToAuthenticationMethod();
 311         showServerStatus();
 312         showAuthStatus();
 313
 314         if (mAction == ACTION_UPDATE_TOKEN) {
 315             /// lock things that should not change
 316             mHostUrlInput.setEnabled(false);
 317             mHostUrlInput.setFocusable(false);
 318             mUsernameInput.setEnabled(false);
 319             mUsernameInput.setFocusable(false);
 320             mOAuth2Check.setVisibility(View.GONE);
 321         }
 322
 323         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 324         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 325         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 326
 327         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 328                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 329             mOAuth2Check.setVisibility(View.GONE);
 330         }
 331
 332         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 333
 334         /// bind view elements to listeners and other friends
 335         mHostUrlInput.setOnFocusChangeListener(this);
 336         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 337         mHostUrlInput.setOnEditorActionListener(this);
 338         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 339
 340             @Override
 341             public void afterTextChanged(Editable s) {
 342                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 343                     mOkButton.setEnabled(false);
 344                 }
 345             }
 346
 347             @Override
 348             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 349             }
 350
 351             @Override
 352             public void onTextChanged(CharSequence s, int start, int before, int count) {
 353                 if (!mResumed) {
 354                     mAuthStatusIcon = 0;
 355                     mAuthStatusText = 0;
 356                     showAuthStatus();
 357                 }
 358                 mResumed = false;
 359             }
 360         });
 361
 362         mPasswordInput.setOnFocusChangeListener(this);
 363         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 364         mPasswordInput.setOnEditorActionListener(this);
 365         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 366             @Override
 367             public boolean onDrawableTouch(final MotionEvent event) {
 368                 if (event.getAction() == MotionEvent.ACTION_UP) {
 369                     AuthenticatorActivity.this.onViewPasswordClick();
 370                 }
 371                 return true;
 372             }
 373         });
 374
 375         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 376             @Override
 377             public boolean onTouch(View view, MotionEvent event) {
 378                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 379                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 380                             mHostUrlInput.hasFocus()) {
 381                         checkOcServer();
 382                     }
 383                 }
 384                 return false;
 385             }
 386         });
 387     }
 388
 389
 390
 391     private void initAuthorizationMethod() {
 392         boolean oAuthRequired = false;
 393         boolean samlWebSsoRequired = false;
 394
 395         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 396         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 397
 398         // TODO could be a good moment to validate the received token type, if not null
 399
 400         if (mAuthTokenType == null) {
 401             if (mAccount != null) {
 402                 /// same authentication method than the one used to create the account to update
 403                 oAuthRequired = (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2) != null);
 404                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 405
 406             } else {
 407                 /// use the one set in setup.xml
 408                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 409                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 410             }
 411             if (oAuthRequired) {
 412                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 413             } else if (samlWebSsoRequired) {
 414                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 415             } else {
 416                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 417             }
 418         }
 419
 420         if (mAccount != null) {
 421             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 422             mUsernameInput.setText(userName);
 423         }
 424
 425         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 426
 427     }
 428
 429     /**
 430      * Saves relevant state before {@link #onPause()}
 431      *
 432      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 433      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 434      *
 435      * See {@link #loadSavedInstanceState(Bundle)}
 436      */
 437     @Override
 438     protected void onSaveInstanceState(Bundle outState) {
 439         super.onSaveInstanceState(outState);
 440
 441         /// connection state and info
 442         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 443         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 444         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 445         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 446         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 447         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 448         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 449         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 450         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 451         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 452         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 453
 454         /// server data
 455         if (mDiscoveredVersion != null) {
 456             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 457         }
 458         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 459         outState.putBoolean(KEY_IS_SHARED_SUPPORTED, mIsSharedSupported);
 460
 461         /// account data, if updating
 462         if (mAccount != null) {
 463             outState.putParcelable(KEY_ACCOUNT, mAccount);
 464         }
 465         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 466
 467         // refresh button enabled
 468         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 469
 470
 471     }
 472
 473
 474     /**
 475      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 476      * is caught here.
 477      *
 478      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 479      * AndroidManifest.xml file.
 480      */
 481     @Override
 482     protected void onNewIntent (Intent intent) {
 483         Log_OC.d(TAG, "onNewIntent()");
 484         Uri data = intent.getData();
 485         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 486             mNewCapturedUriFromOAuth2Redirection = data;
 487         }
 488     }
 489
 490
 491     /**
 492      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 493      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 494      */
 495     @Override
 496     protected void onResume() {
 497         super.onResume();
 498         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 499             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 500                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 501                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 502             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 503                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 504                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 505             } else {
 506                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 507                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 508             }
 509         }
 510
 511         if (mNewCapturedUriFromOAuth2Redirection != null) {
 512             getOAuth2AccessTokenFromCapturedRedirection();
 513         }
 514
 515         mJustCreated = false;
 516
 517     }
 518
 519
 520     /**
 521      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 522      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 523      */
 524     private void getOAuth2AccessTokenFromCapturedRedirection() {
 525         /// Parse data from OAuth redirection
 526         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 527         mNewCapturedUriFromOAuth2Redirection = null;
 528
 529         /// Showing the dialog with instructions for the user.
 530         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 531
 532         /// GET ACCESS TOKEN to the oAuth server
 533         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 534                 getString(R.string.oauth2_redirect_uri),
 535                 getString(R.string.oauth2_grant_type),
 536                 queryParameters);
 537         //OwnCloudClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 538         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 539         operation.execute(client, this, mHandler);
 540     }
 541
 542
 543
 544     /**
 545      * Handles the change of focus on the text inputs for the server URL and the password
 546      */
 547     public void onFocusChange(View view, boolean hasFocus) {
 548         if (view.getId() == R.id.hostUrlInput) {
 549             if (!hasFocus) {
 550                 onUrlInputFocusLost((TextView) view);
 551             }
 552             else {
 553                 hideRefreshButton();
 554             }
 555
 556         } else if (view.getId() == R.id.account_password) {
 557             onPasswordFocusChanged((TextView) view, hasFocus);
 558         }
 559     }
 560
 561
 562     /**
 563      * Handles changes in focus on the text input for the server URL.
 564      *
 565      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 566      * other field. The operation to check the existence of the server in the entered URL is
 567      * started.
 568      *
 569      * When hasFocus:    user 'comes back' to write again the server URL.
 570      *
 571      * @param hostInput     TextView with the URL input field receiving the change of focus.
 572      */
 573     private void onUrlInputFocusLost(TextView hostInput) {
 574         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 575             checkOcServer();
 576         } else {
 577             mOkButton.setEnabled(mServerIsValid);
 578             if (!mServerIsValid) {
 579                 showRefreshButton();
 580             }
 581         }
 582     }
 583
 584
 585     private void checkOcServer() {
 586         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 587
 588         if (!mHostUrlInputEnabled){
 589             uri = getString(R.string.server_url);
 590         }
 591
 592         mServerIsValid = false;
 593         mServerIsChecked = false;
 594         mIsSharedSupported = false;
 595         mOkButton.setEnabled(false);
 596         mDiscoveredVersion = null;
 597         hideRefreshButton();
 598         if (uri.length() != 0) {
 599             mServerStatusText = R.string.auth_testing_connection;
 600             mServerStatusIcon = R.drawable.progress_small;
 601             showServerStatus();
 602             mOcServerChkOperation = new  GetRemoteStatusOperation(uri, this);
 603             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 604             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 605         } else {
 606             mServerStatusText = 0;
 607             mServerStatusIcon = 0;
 608             showServerStatus();
 609         }
 610     }
 611
 612
 613     /**
 614      * Handles changes in focus on the text input for the password (basic authorization).
 615      *
 616      * When (hasFocus), the button to toggle password visibility is shown.
 617      *
 618      * When (!hasFocus), the button is made invisible and the password is hidden.
 619      *
 620      * @param passwordInput    TextView with the password input field receiving the change of focus.
 621      * @param hasFocus          'True' if focus is received, 'false' if is lost
 622      */
 623     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 624         if (hasFocus) {
 625             showViewPasswordButton();
 626         } else {
 627             hidePassword();
 628             hidePasswordButton();
 629         }
 630     }
 631
 632
 633     private void showViewPasswordButton() {
 634         //int drawable = android.R.drawable.ic_menu_view;
 635         int drawable = R.drawable.ic_view;
 636         if (isPasswordVisible()) {
 637             //drawable = android.R.drawable.ic_secure;
 638             drawable = R.drawable.ic_hide;
 639         }
 640         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 641     }
 642
 643     private boolean isPasswordVisible() {
 644         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 645     }
 646
 647     private void hidePasswordButton() {
 648         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 649     }
 650
 651     private void showPassword() {
 652         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 653         showViewPasswordButton();
 654     }
 655
 656     private void hidePassword() {
 657         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 658         showViewPasswordButton();
 659     }
 660
 661
 662     /**
 663      * Cancels the authenticator activity
 664      *
 665      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 666      *
 667      * This method is bound in the layout/acceoun_setup.xml resource file.
 668      *
 669      * @param view      Cancel button
 670      */
 671     public void onCancelClick(View view) {
 672         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 673         finish();
 674     }
 675
 676
 677
 678     /**
 679      * Checks the credentials of the user in the root of the ownCloud server
 680      * before creating a new local account.
 681      *
 682      * For basic authorization, a check of existence of the root folder is
 683      * performed.
 684      *
 685      * For OAuth, starts the flow to get an access token; the credentials test
 686      * is postponed until it is available.
 687      *
 688      * IMPORTANT ENTRY POINT 4
 689      *
 690      * @param view      OK button
 691      */
 692     public void onOkClick(View view) {
 693         // this check should be unnecessary
 694         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 695             mServerStatusIcon = R.drawable.common_error;
 696             mServerStatusText = R.string.auth_wtf_reenter_URL;
 697             showServerStatus();
 698             mOkButton.setEnabled(false);
 699             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 700             return;
 701         }
 702
 703         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 704             startOauthorization();
 705         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 706             startSamlBasedFederatedSingleSignOnAuthorization();
 707         } else {
 708             checkBasicAuthorization();
 709         }
 710     }
 711
 712
 713     /**
 714      * Tests the credentials entered by the user performing a check of existence on
 715      * the root folder of the ownCloud server.
 716      */
 717     private void checkBasicAuthorization() {
 718         /// get the path to the root folder through WebDAV from the version server
 719         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 720
 721         /// get basic credentials entered by user
 722         String username = mUsernameInput.getText().toString();
 723         String password = mPasswordInput.getText().toString();
 724
 725         /// be gentle with the user
 726         showDialog(DIALOG_LOGIN_PROGRESS);
 727
 728         /// test credentials accessing the root folder
 729         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 730         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 731         client.setBasicCredentials(username, password);
 732         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 733     }
 734
 735
 736     /**
 737      * Starts the OAuth 'grant type' flow to get an access token, with
 738      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 739      */
 740     private void startOauthorization() {
 741         // be gentle with the user
 742         mAuthStatusIcon = R.drawable.progress_small;
 743         mAuthStatusText = R.string.oauth_login_connection;
 744         showAuthStatus();
 745
 746
 747         // GET AUTHORIZATION request
 748         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 749         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 750         Uri.Builder uriBuilder = uri.buildUpon();
 751         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 752         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 753         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 754         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 755         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 756         uri = uriBuilder.build();
 757         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 758         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 759         startActivity(i);
 760     }
 761
 762
 763     /**
 764      * Starts the Web Single Sign On flow to get access to the root folder
 765      * in the server.
 766      */
 767     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 768         // be gentle with the user
 769         mAuthStatusIcon = R.drawable.progress_small;
 770         mAuthStatusText = R.string.auth_connecting_auth_server;
 771         showAuthStatus();
 772         showDialog(DIALOG_LOGIN_PROGRESS);
 773
 774         /// get the path to the root folder through WebDAV from the version server
 775         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 776
 777         /// test credentials accessing the root folder
 778         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 779         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 780         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 781
 782     }
 783
 784     /**
 785      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 786      *
 787      * Dispatches the operation flow to the right method.
 788      */
 789     @Override
 790     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 791
 792         if (operation instanceof GetRemoteStatusOperation) {
 793             onOcServerCheckFinish((GetRemoteStatusOperation) operation, result);
 794
 795         } else if (operation instanceof OAuth2GetAccessToken) {
 796             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 797
 798         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 799             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 800                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 801
 802             } else {
 803                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 804             }
 805         } else if (operation instanceof GetRemoteUserNameOperation) {
 806             onGetUserNameFinish((GetRemoteUserNameOperation) operation, result);
 807
 808         }
 809
 810     }
 811
 812     private void onGetUserNameFinish(GetRemoteUserNameOperation operation, RemoteOperationResult result) {
 813         if (result.isSuccess()) {
 814             boolean success = false;
 815             String username = operation.getUserName();
 816
 817             if ( mAction == ACTION_CREATE) {
 818                 mUsernameInput.setText(username);
 819                 success = createAccount();
 820             } else {
 821
 822                 if (!mUsernameInput.getText().toString().equals(username)) {
 823                     // fail - not a new account, but an existing one; disallow
 824                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 825                     updateAuthStatusIconAndText(result);
 826                     showAuthStatus();
 827                     Log_OC.d(TAG, result.getLogMessage());
 828                 } else {
 829                   updateToken();
 830                   success = true;
 831                 }
 832             }
 833
 834             if (success)
 835                 finish();
 836         } else {
 837             updateAuthStatusIconAndText(result);
 838             showAuthStatus();
 839             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
 840         }
 841
 842     }
 843
 844     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 845         try {
 846             dismissDialog(DIALOG_LOGIN_PROGRESS);
 847         } catch (IllegalArgumentException e) {
 848             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 849         }
 850
 851         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 852         if (result.isIdPRedirection()) {
 853             String url = result.getRedirectedLocation();
 854             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 855
 856             // Show dialog
 857             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 858             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 859
 860             mAuthStatusIcon = 0;
 861             mAuthStatusText = 0;
 862
 863         } else {
 864             mAuthStatusIcon = R.drawable.common_error;
 865             mAuthStatusText = R.string.auth_unsupported_auth_method;
 866
 867         }
 868         showAuthStatus();
 869     }
 870
 871
 872     /**
 873      * Processes the result of the server check performed when the user finishes the enter of the
 874      * server URL.
 875      *
 876      * @param operation     Server check performed.
 877      * @param result        Result of the check.
 878      */
 879     private void onOcServerCheckFinish(GetRemoteStatusOperation operation, RemoteOperationResult result) {
 880         if (operation.equals(mOcServerChkOperation)) {
 881             /// save result state
 882             mServerIsChecked = true;
 883             mServerIsValid = result.isSuccess();
 884             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 885             mOcServerChkOperation = null;
 886
 887             /// update status icon and text
 888             if (mServerIsValid) {
 889                 hideRefreshButton();
 890             } else {
 891                 showRefreshButton();
 892             }
 893             updateServerStatusIconAndText(result);
 894             showServerStatus();
 895
 896             /// very special case (TODO: move to a common place for all the remote operations)
 897             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 898                 mLastSslUntrustedServerResult = result;
 899                 showDialog(DIALOG_SSL_VALIDATOR);
 900             }
 901
 902             /// retrieve discovered version and normalize server URL
 903             mDiscoveredVersion = operation.getDiscoveredVersion();
 904             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 905
 906             /// allow or not the user try to access the server
 907             mOkButton.setEnabled(mServerIsValid);
 908
 909             /// retrieve if is supported the Share API
 910             mIsSharedSupported = operation.isSharedSupported();
 911
 912         }   // else nothing ; only the last check operation is considered;
 913         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 914     }
 915
 916
 917     private String normalizeUrl(String url) {
 918         if (url != null && url.length() > 0) {
 919             url = url.trim();
 920             if (!url.toLowerCase().startsWith("http://") &&
 921                     !url.toLowerCase().startsWith("https://")) {
 922                 if (mIsSslConn) {
 923                     url = "https://" + url;
 924                 } else {
 925                     url = "http://" + url;
 926                 }
 927             }
 928
 929             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 930             url = trimUrlWebdav(url);
 931
 932             if (url.endsWith("/")) {
 933                 url = url.substring(0, url.length() - 1);
 934             }
 935
 936         }
 937         return (url != null ? url : "");
 938     }
 939
 940
 941     private String trimUrlWebdav(String url){
 942         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 943             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 944         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 945             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 946         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 947             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 948         }
 949         return (url != null ? url : "");
 950     }
 951
 952
 953     /**
 954      * Chooses the right icon and text to show to the user for the received operation result.
 955      *
 956      * @param result    Result of a remote operation performed in this activity
 957      */
 958     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 959         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 960
 961         switch (result.getCode()) {
 962         case OK_SSL:
 963             mServerStatusIcon = android.R.drawable.ic_secure;
 964             mServerStatusText = R.string.auth_secure_connection;
 965             break;
 966
 967         case OK_NO_SSL:
 968         case OK:
 969             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 970                 mServerStatusText = R.string.auth_connection_established;
 971                 mServerStatusIcon = R.drawable.ic_ok;
 972             } else {
 973                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 974                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 975             }
 976             break;
 977
 978         case NO_NETWORK_CONNECTION:
 979             mServerStatusIcon = R.drawable.no_network;
 980             mServerStatusText = R.string.auth_no_net_conn_title;
 981             break;
 982
 983         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 984             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 985             break;
 986         case BAD_OC_VERSION:
 987             mServerStatusText = R.string.auth_bad_oc_version_title;
 988             break;
 989         case WRONG_CONNECTION:
 990             mServerStatusText = R.string.auth_wrong_connection_title;
 991             break;
 992         case TIMEOUT:
 993             mServerStatusText = R.string.auth_timeout_title;
 994             break;
 995         case INCORRECT_ADDRESS:
 996             mServerStatusText = R.string.auth_incorrect_address_title;
 997             break;
 998         case SSL_ERROR:
 999             mServerStatusText = R.string.auth_ssl_general_error_title;
1000             break;
1001         case UNAUTHORIZED:
1002             mServerStatusText = R.string.auth_unauthorized;
1003             break;
1004         case HOST_NOT_AVAILABLE:
1005             mServerStatusText = R.string.auth_unknown_host_title;
1006             break;
1007         case INSTANCE_NOT_CONFIGURED:
1008             mServerStatusText = R.string.auth_not_configured_title;
1009             break;
1010         case FILE_NOT_FOUND:
1011             mServerStatusText = R.string.auth_incorrect_path_title;
1012             break;
1013         case OAUTH2_ERROR:
1014             mServerStatusText = R.string.auth_oauth_error;
1015             break;
1016         case OAUTH2_ERROR_ACCESS_DENIED:
1017             mServerStatusText = R.string.auth_oauth_error_access_denied;
1018             break;
1019         case UNHANDLED_HTTP_CODE:
1020         case UNKNOWN_ERROR:
1021             mServerStatusText = R.string.auth_unknown_error_title;
1022             break;
1023         default:
1024             mServerStatusText = 0;
1025             mServerStatusIcon = 0;
1026         }
1027     }
1028
1029
1030     /**
1031      * Chooses the right icon and text to show to the user for the received operation result.
1032      *
1033      * @param result    Result of a remote operation performed in this activity
1034      */
1035     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1036         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1037
1038         switch (result.getCode()) {
1039         case OK_SSL:
1040             mAuthStatusIcon = android.R.drawable.ic_secure;
1041             mAuthStatusText = R.string.auth_secure_connection;
1042             break;
1043
1044         case OK_NO_SSL:
1045         case OK:
1046             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1047                 mAuthStatusText = R.string.auth_connection_established;
1048                 mAuthStatusIcon = R.drawable.ic_ok;
1049             } else {
1050                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1051                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1052             }
1053             break;
1054
1055         case NO_NETWORK_CONNECTION:
1056             mAuthStatusIcon = R.drawable.no_network;
1057             mAuthStatusText = R.string.auth_no_net_conn_title;
1058             break;
1059
1060         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1061             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1062             break;
1063         case BAD_OC_VERSION:
1064             mAuthStatusText = R.string.auth_bad_oc_version_title;
1065             break;
1066         case WRONG_CONNECTION:
1067             mAuthStatusText = R.string.auth_wrong_connection_title;
1068             break;
1069         case TIMEOUT:
1070             mAuthStatusText = R.string.auth_timeout_title;
1071             break;
1072         case INCORRECT_ADDRESS:
1073             mAuthStatusText = R.string.auth_incorrect_address_title;
1074             break;
1075         case SSL_ERROR:
1076             mAuthStatusText = R.string.auth_ssl_general_error_title;
1077             break;
1078         case UNAUTHORIZED:
1079             mAuthStatusText = R.string.auth_unauthorized;
1080             break;
1081         case HOST_NOT_AVAILABLE:
1082             mAuthStatusText = R.string.auth_unknown_host_title;
1083             break;
1084         case INSTANCE_NOT_CONFIGURED:
1085             mAuthStatusText = R.string.auth_not_configured_title;
1086             break;
1087         case FILE_NOT_FOUND:
1088             mAuthStatusText = R.string.auth_incorrect_path_title;
1089             break;
1090         case OAUTH2_ERROR:
1091             mAuthStatusText = R.string.auth_oauth_error;
1092             break;
1093         case OAUTH2_ERROR_ACCESS_DENIED:
1094             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1095             break;
1096         case ACCOUNT_NOT_NEW:
1097             mAuthStatusText = R.string.auth_account_not_new;
1098             break;
1099         case ACCOUNT_NOT_THE_SAME:
1100             mAuthStatusText = R.string.auth_account_not_the_same;
1101             break;
1102         case UNHANDLED_HTTP_CODE:
1103         case UNKNOWN_ERROR:
1104             mAuthStatusText = R.string.auth_unknown_error_title;
1105             break;
1106         default:
1107             mAuthStatusText = 0;
1108             mAuthStatusIcon = 0;
1109         }
1110     }
1111
1112
1113     /**
1114      * Processes the result of the request for and access token send
1115      * to an OAuth authorization server.
1116      *
1117      * @param operation     Operation performed requesting the access token.
1118      * @param result        Result of the operation.
1119      */
1120     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1121         try {
1122             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1123         } catch (IllegalArgumentException e) {
1124             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1125         }
1126
1127         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1128         if (result.isSuccess() && webdav_path != null) {
1129             /// be gentle with the user
1130             showDialog(DIALOG_LOGIN_PROGRESS);
1131
1132             /// time to test the retrieved access token on the ownCloud server
1133             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1134             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1135             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1136             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1137             client.setBearerCredentials(mAuthToken);
1138             mAuthCheckOperation.execute(client, this, mHandler);
1139
1140         } else {
1141             updateAuthStatusIconAndText(result);
1142             showAuthStatus();
1143             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1144         }
1145     }
1146
1147
1148     /**
1149      * Processes the result of the access check performed to try the user credentials.
1150      *
1151      * Creates a new account through the AccountManager.
1152      *
1153      * @param operation     Access check performed.
1154      * @param result        Result of the operation.
1155      */
1156     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1157         try {
1158             dismissDialog(DIALOG_LOGIN_PROGRESS);
1159         } catch (IllegalArgumentException e) {
1160             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1161         }
1162
1163         if (result.isSuccess()) {
1164             Log_OC.d(TAG, "Successful access - time to save the account");
1165
1166             boolean success = false;
1167             if (mAction == ACTION_CREATE) {
1168                 success = createAccount();
1169
1170             } else {
1171                 updateToken();
1172                 success = true;
1173             }
1174
1175             if (success) {
1176                 finish();
1177             }
1178
1179         } else if (result.isServerFail() || result.isException()) {
1180             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1181             mServerIsChecked = true;
1182             mServerIsValid = false;
1183             mIsSslConn = false;
1184             mOcServerChkOperation = null;
1185             mDiscoveredVersion = null;
1186             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1187
1188             // update status icon and text
1189             updateServerStatusIconAndText(result);
1190             showServerStatus();
1191             mAuthStatusIcon = 0;
1192             mAuthStatusText = 0;
1193             showAuthStatus();
1194
1195             // update input controls state
1196             showRefreshButton();
1197             mOkButton.setEnabled(false);
1198
1199             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1200             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1201                 mLastSslUntrustedServerResult = result;
1202                 showDialog(DIALOG_SSL_VALIDATOR);
1203             }
1204
1205         } else {    // authorization fail due to client side - probably wrong credentials
1206             updateAuthStatusIconAndText(result);
1207             showAuthStatus();
1208             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1209         }
1210
1211     }
1212
1213
1214     /**
1215      * Sets the proper response to get that the Account Authenticator that started this activity saves
1216      * a new authorization token for mAccount.
1217      */
1218     private void updateToken() {
1219         Bundle response = new Bundle();
1220         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1221         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1222
1223         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1224             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1225             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1226             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1227
1228         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1229
1230             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1231             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1232             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1233
1234         } else {
1235             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1236             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1237         }
1238         setAccountAuthenticatorResult(response);
1239
1240     }
1241
1242
1243     /**
1244      * Creates a new account through the Account Authenticator that started this activity.
1245      *
1246      * This makes the account permanent.
1247      *
1248      * TODO Decide how to name the OAuth accounts
1249      */
1250     private boolean createAccount() {
1251         /// create and save new ownCloud account
1252         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1253         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1254
1255         Uri uri = Uri.parse(mHostBaseUrl);
1256         String username = mUsernameInput.getText().toString().trim();
1257         if (isOAuth) {
1258             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1259         }
1260         String accountName = username + "@" + uri.getHost();
1261         if (uri.getPort() >= 0) {
1262             accountName += ":" + uri.getPort();
1263         }
1264         mAccount = new Account(accountName, MainApp.getAccountType());
1265         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1266             // fail - not a new account, but an existing one; disallow
1267             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1268             updateAuthStatusIconAndText(result);
1269             showAuthStatus();
1270             Log_OC.d(TAG, result.getLogMessage());
1271             return false;
1272
1273         } else {
1274
1275             if (isOAuth || isSaml) {
1276                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1277             } else {
1278                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1279             }
1280
1281             /// add the new account as default in preferences, if there is none already
1282             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1283             if (defaultAccount == null) {
1284                 SharedPreferences.Editor editor = PreferenceManager
1285                         .getDefaultSharedPreferences(this).edit();
1286                 editor.putString("select_oc_account", accountName);
1287                 editor.commit();
1288             }
1289
1290             /// prepare result to return to the Authenticator
1291             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1292             final Intent intent = new Intent();
1293             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1294             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1295             /*if (!isOAuth)
1296                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1297             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1298             if (isOAuth || isSaml) {
1299                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1300             }
1301             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1302             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1303             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1304             mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SHARE_API, Boolean.toString(mIsSharedSupported));
1305             if (isSaml) {
1306                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1307             } else if (isOAuth) {
1308                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1309             }
1310
1311             setAccountAuthenticatorResult(intent.getExtras());
1312             setResult(RESULT_OK, intent);
1313
1314             return true;
1315         }
1316     }
1317
1318
1319     /**
1320      * {@inheritDoc}
1321      *
1322      * Necessary to update the contents of the SSL Dialog
1323      *
1324      * TODO move to some common place for all possible untrusted SSL failures
1325      */
1326     @Override
1327     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1328         switch (id) {
1329         case DIALOG_LOGIN_PROGRESS:
1330         case DIALOG_CERT_NOT_SAVED:
1331         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1332             break;
1333         case DIALOG_SSL_VALIDATOR: {
1334             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1335             break;
1336         }
1337         default:
1338             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1339         }
1340     }
1341
1342
1343     /**
1344      * {@inheritDoc}
1345      */
1346     @Override
1347     protected Dialog onCreateDialog(int id) {
1348         Dialog dialog = null;
1349         switch (id) {
1350         case DIALOG_LOGIN_PROGRESS: {
1351             /// simple progress dialog
1352             ProgressDialog working_dialog = new ProgressDialog(this);
1353             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
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                     /// TODO study if this is enough
1361                     Log_OC.i(TAG, "Login canceled");
1362                     if (mOperationThread != null) {
1363                         mOperationThread.interrupt();
1364                         finish();
1365                     }
1366                 }
1367             });
1368             dialog = working_dialog;
1369             break;
1370         }
1371         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1372             ProgressDialog working_dialog = new ProgressDialog(this);
1373             working_dialog.setMessage(String.format("Getting authorization"));
1374             working_dialog.setIndeterminate(true);
1375             working_dialog.setCancelable(true);
1376             working_dialog
1377             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1378                 @Override
1379                 public void onCancel(DialogInterface dialog) {
1380                     Log_OC.i(TAG, "Login canceled");
1381                     finish();
1382                 }
1383             });
1384             dialog = working_dialog;
1385             break;
1386         }
1387         case DIALOG_SSL_VALIDATOR: {
1388             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1389             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1390             break;
1391         }
1392         case DIALOG_CERT_NOT_SAVED: {
1393             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1394             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1395             builder.setCancelable(false);
1396             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1397                 @Override
1398                 public void onClick(DialogInterface dialog, int which) {
1399                     dialog.dismiss();
1400                 };
1401             });
1402             dialog = builder.create();
1403             break;
1404         }
1405         default:
1406             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1407         }
1408         return dialog;
1409     }
1410
1411
1412     /**
1413      * Starts and activity to open the 'new account' page in the ownCloud web site
1414      *
1415      * @param view      'Account register' button
1416      */
1417     public void onRegisterClick(View view) {
1418         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1419         setResult(RESULT_CANCELED);
1420         startActivity(register);
1421     }
1422
1423
1424     /**
1425      * Updates the content and visibility state of the icon and text associated
1426      * to the last check on the ownCloud server.
1427      */
1428     private void showServerStatus() {
1429         TextView tv = (TextView) findViewById(R.id.server_status_text);
1430
1431         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1432             tv.setVisibility(View.INVISIBLE);
1433
1434         } else {
1435             tv.setText(mServerStatusText);
1436             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1437             tv.setVisibility(View.VISIBLE);
1438         }
1439
1440     }
1441
1442
1443     /**
1444      * Updates the content and visibility state of the icon and text associated
1445      * to the interactions with the OAuth authorization server.
1446      */
1447     private void showAuthStatus() {
1448         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1449             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1450
1451         } else {
1452             mAuthStatusLayout.setText(mAuthStatusText);
1453             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1454             mAuthStatusLayout.setVisibility(View.VISIBLE);
1455         }
1456     }
1457
1458
1459     private void showRefreshButton() {
1460         mRefreshButton.setVisibility(View.VISIBLE);
1461     }
1462
1463     private void hideRefreshButton() {
1464         mRefreshButton.setVisibility(View.GONE);
1465     }
1466
1467     /**
1468      * Called when the refresh button in the input field for ownCloud host is clicked.
1469      *
1470      * Performs a new check on the URL in the input field.
1471      *
1472      * @param view      Refresh 'button'
1473      */
1474     public void onRefreshClick(View view) {
1475         checkOcServer();
1476     }
1477
1478
1479     /**
1480      * Called when the eye icon in the password field is clicked.
1481      *
1482      * Toggles the visibility of the password in the field.
1483      */
1484     public void onViewPasswordClick() {
1485         int selectionStart = mPasswordInput.getSelectionStart();
1486         int selectionEnd = mPasswordInput.getSelectionEnd();
1487         if (isPasswordVisible()) {
1488             hidePassword();
1489         } else {
1490             showPassword();
1491         }
1492         mPasswordInput.setSelection(selectionStart, selectionEnd);
1493     }
1494
1495
1496     /**
1497      * Called when the checkbox for OAuth authorization is clicked.
1498      *
1499      * Hides or shows the input fields for user & password.
1500      *
1501      * @param view      'View password' 'button'
1502      */
1503     public void onCheckClick(View view) {
1504         CheckBox oAuth2Check = (CheckBox)view;
1505         if (oAuth2Check.isChecked()) {
1506             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1507         } else {
1508             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1509         }
1510         adaptViewAccordingToAuthenticationMethod();
1511     }
1512
1513
1514     /**
1515      * Changes the visibility of input elements depending on
1516      * the current authorization method.
1517      */
1518     private void adaptViewAccordingToAuthenticationMethod () {
1519         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1520             // OAuth 2 authorization
1521             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1522             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1523             mUsernameInput.setVisibility(View.GONE);
1524             mPasswordInput.setVisibility(View.GONE);
1525
1526         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1527             // SAML-based web Single Sign On
1528             mOAuthAuthEndpointText.setVisibility(View.GONE);
1529             mOAuthTokenEndpointText.setVisibility(View.GONE);
1530             mUsernameInput.setVisibility(View.GONE);
1531             mPasswordInput.setVisibility(View.GONE);
1532         } else {
1533             // basic HTTP authorization
1534             mOAuthAuthEndpointText.setVisibility(View.GONE);
1535             mOAuthTokenEndpointText.setVisibility(View.GONE);
1536             mUsernameInput.setVisibility(View.VISIBLE);
1537             mPasswordInput.setVisibility(View.VISIBLE);
1538         }
1539     }
1540
1541     /**
1542      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1543      */
1544     public void onSavedCertificate() {
1545         checkOcServer();
1546     }
1547
1548     /**
1549      * Called from SslValidatorDialog when a new server certificate could not be saved
1550      * when the user requested it.
1551      */
1552     @Override
1553     public void onFailedSavingCertificate() {
1554         showDialog(DIALOG_CERT_NOT_SAVED);
1555     }
1556
1557
1558     /**
1559      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1560      *
1561      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1562      *  or to throw the server test when the only field on screen is the URL input field.
1563      */
1564     @Override
1565     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1566         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1567             if (mOkButton.isEnabled()) {
1568                 mOkButton.performClick();
1569             }
1570
1571         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1572             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1573                 checkOcServer();
1574             }
1575         }
1576         return false;   // always return false to grant that the software keyboard is hidden anyway
1577     }
1578
1579
1580     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1581
1582         private int fuzz = 75;
1583
1584         /**
1585          * {@inheritDoc}
1586          */
1587         @Override
1588         public boolean onTouch(View view, MotionEvent event) {
1589             Drawable rightDrawable = null;
1590             if (view instanceof TextView) {
1591                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1592                 if (drawables.length > 2) {
1593                     rightDrawable = drawables[2];
1594                 }
1595             }
1596             if (rightDrawable != null) {
1597                 final int x = (int) event.getX();
1598                 final int y = (int) event.getY();
1599                 final Rect bounds = rightDrawable.getBounds();
1600                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1601                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1602
1603                     return onDrawableTouch(event);
1604                 }
1605             }
1606             return false;
1607         }
1608
1609         public abstract boolean onDrawableTouch(final MotionEvent event);
1610     }
1611
1612
1613     public void onSamlDialogSuccess(String sessionCookie) {
1614         mAuthToken = sessionCookie;
1615
1616         if (sessionCookie != null && sessionCookie.length() > 0) {
1617             mAuthToken = sessionCookie;
1618
1619             GetRemoteUserNameOperation getUserOperation = new GetRemoteUserNameOperation();
1620             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1621             client.setSsoSessionCookie(mAuthToken);
1622             getUserOperation.execute(client, this, mHandler);
1623         }
1624
1625
1626     }
1627
1628
1629     @Override
1630     public void onSsoFinished(String sessionCookies) {
1631         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1632
1633         if (sessionCookies != null && sessionCookies.length() > 0) {
1634             Log_OC.d(TAG, "Successful SSO - time to save the account");
1635             onSamlDialogSuccess(sessionCookies);
1636             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1637             if (fd != null && fd instanceof SherlockDialogFragment) {
1638                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1639                 if (d != null && d.isShowing()) {
1640                     d.dismiss();
1641                 }
1642             }
1643
1644         } else {
1645             // TODO - show fail
1646             Log_OC.d(TAG, "SSO failed");
1647         }
1648
1649     }
1650
1651     /** Show auth_message
1652      *
1653      * @param message
1654      */
1655     private void showAuthMessage(String message) {
1656        mAuthMessage.setVisibility(View.VISIBLE);
1657        mAuthMessage.setText(message);
1658     }
1659
1660     private void hideAuthMessage() {
1661         mAuthMessage.setVisibility(View.GONE);
1662     }
1663
1664     @Override
1665     public boolean onTouchEvent(MotionEvent event) {
1666         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1667                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1668             checkOcServer();
1669         }
1670         return super.onTouchEvent(event);
1671     }
1672
1673 }