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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.ContentResolver;
  27 import android.content.DialogInterface;
  28 import android.content.Intent;
  29 import android.content.SharedPreferences;
  30 import android.graphics.Rect;
  31 import android.graphics.drawable.Drawable;
  32 import android.net.Uri;
  33 import android.os.Bundle;
  34 import android.os.Handler;
  35 import android.preference.PreferenceManager;
  36 import android.support.v4.app.FragmentManager;
  37 import android.text.Editable;
  38 import android.text.InputType;
  39 import android.text.TextWatcher;
  40 import android.view.KeyEvent;
  41 import android.view.MotionEvent;
  42 import android.view.View;
  43 import android.view.View.OnFocusChangeListener;
  44 import android.view.View.OnTouchListener;
  45 import android.view.Window;
  46 import android.view.inputmethod.EditorInfo;
  47 import android.widget.Button;
  48 import android.widget.CheckBox;
  49 import android.widget.EditText;
  50 import android.widget.TextView;
  51 import android.widget.TextView.OnEditorActionListener;
  52 import android.widget.Toast;
  53
  54 import com.owncloud.android.Log_OC;
  55 import com.owncloud.android.R;
  56 import com.owncloud.android.network.OwnCloudClientUtils;
  57 import com.owncloud.android.operations.ExistenceCheckOperation;
  58 import com.owncloud.android.operations.OAuth2GetAccessToken;
  59 import com.owncloud.android.operations.OnRemoteOperationListener;
  60 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  61 import com.owncloud.android.operations.RemoteOperation;
  62 import com.owncloud.android.operations.RemoteOperationResult;
  63 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  64 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  65 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  66 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  67 import com.owncloud.android.utils.OwnCloudVersion;
  68
  69 import eu.alefzero.webdav.WebdavClient;
  70
  71 /**
  72  * This Activity is used to add an ownCloud account to the App
  73  *
  74  * @author Bartek Przybylski
  75  * @author David A. Velasco
  76  */
  77 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  78 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener {
  79
  80     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  81
  82     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  83     public static final String EXTRA_USER_NAME = "USER_NAME";
  84     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  85     public static final String EXTRA_ACTION = "ACTION";
  86     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  87
  88     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  89     private static final String KEY_OC_VERSION = "OC_VERSION";
  90     private static final String KEY_ACCOUNT = "ACCOUNT";
  91     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  92     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  93     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  94     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
  95     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
  96     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
  97     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
  98     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
  99     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 100     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 101
 102     private static final String AUTH_ON = "on";
 103     private static final String AUTH_OFF = "off";
 104     private static final String AUTH_OPTIONAL = "optional";
 105
 106     private static final int DIALOG_LOGIN_PROGRESS = 0;
 107     private static final int DIALOG_SSL_VALIDATOR = 1;
 108     private static final int DIALOG_CERT_NOT_SAVED = 2;
 109     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 110
 111     public static final byte ACTION_CREATE = 0;
 112     public static final byte ACTION_UPDATE_TOKEN = 1;
 113
 114     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 115
 116     private String mHostBaseUrl;
 117     private OwnCloudVersion mDiscoveredVersion;
 118
 119     private int mServerStatusText, mServerStatusIcon;
 120     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 121     private int mAuthStatusText, mAuthStatusIcon;
 122     private TextView mAuthStatusLayout;
 123
 124     private final Handler mHandler = new Handler();
 125     private Thread mOperationThread;
 126     private OwnCloudServerCheckOperation mOcServerChkOperation;
 127     private ExistenceCheckOperation mAuthCheckOperation;
 128     private RemoteOperationResult mLastSslUntrustedServerResult;
 129
 130     private Uri mNewCapturedUriFromOAuth2Redirection;
 131
 132     private AccountManager mAccountMgr;
 133     private boolean mJustCreated;
 134     private byte mAction;
 135     private Account mAccount;
 136
 137     private EditText mHostUrlInput;
 138     private boolean mHostUrlInputEnabled;
 139     private View mRefreshButton;
 140
 141     private String mCurrentAuthTokenType;
 142
 143     private EditText mUsernameInput;
 144     private EditText mPasswordInput;
 145
 146     private CheckBox mOAuth2Check;
 147
 148     private TextView mOAuthAuthEndpointText;
 149     private TextView mOAuthTokenEndpointText;
 150
 151     private TextView mAccountNameInput;
 152     private SamlWebViewDialog mSamlDialog;
 153
 154     private View mOkButton;
 155
 156     private String mAuthToken;
 157
 158
 159     /**
 160      * {@inheritDoc}
 161      *
 162      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 163      */
 164     @Override
 165     protected void onCreate(Bundle savedInstanceState) {
 166         super.onCreate(savedInstanceState);
 167         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 168
 169         /// set view and get references to view elements
 170         setContentView(R.layout.account_setup);
 171         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 172         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 173         mUsernameInput = (EditText) findViewById(R.id.account_username);
 174         mPasswordInput = (EditText) findViewById(R.id.account_password);
 175         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 176         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 177         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 178         mAccountNameInput = (EditText) findViewById(R.id.account_name);
 179         mOkButton = findViewById(R.id.buttonOK);
 180         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 181
 182         /// set Host Url Input Enabled
 183         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 184
 185
 186         /// complete label for 'register account' button
 187         Button b = (Button) findViewById(R.id.account_register);
 188         if (b != null) {
 189             b.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 190         }
 191
 192         /// initialization
 193         mAccountMgr = AccountManager.get(this);
 194         mNewCapturedUriFromOAuth2Redirection = null;
 195         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 196         mAccount = null;
 197         mHostBaseUrl = "";
 198         boolean refreshButtonEnabled = false;
 199
 200         // URL input configuration applied
 201         if (!mHostUrlInputEnabled)
 202         {
 203             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 204             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 205
 206         } else {
 207             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 208         }
 209
 210         if (savedInstanceState == null) {
 211             /// connection state and info
 212             mServerStatusText = mServerStatusIcon = 0;
 213             mServerIsValid = false;
 214             mServerIsChecked = false;
 215             mIsSslConn = false;
 216             mAuthStatusText = mAuthStatusIcon = 0;
 217
 218             /// retrieve extras from intent
 219             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 220             if (mAccount != null) {
 221                 String ocVersion = mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION);
 222                 if (ocVersion != null) {
 223                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 224                 }
 225                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL));
 226                 mHostUrlInput.setText(mHostBaseUrl);
 227             }
 228             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 229             mOAuth2Check.setChecked(mCurrentAuthTokenType == AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN);
 230             mJustCreated = true;
 231
 232             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 233                 checkOcServer();
 234             }
 235
 236         } else {
 237             /// connection state and info
 238             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 239             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 240             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 241             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 242             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 243             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 244             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 245             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 246                 showPassword();
 247             }
 248
 249             /// server data
 250             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 251             if (ocVersion != null) {
 252                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 253             }
 254             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 255
 256             // account data, if updating
 257             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 258             mCurrentAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 259             if (mCurrentAuthTokenType == null) {
 260                 mCurrentAuthTokenType =  AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 261             }
 262
 263             // check if server check was interrupted by a configuration change
 264             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 265                 checkOcServer();
 266             }
 267
 268             // refresh button enabled
 269             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 270
 271
 272         }
 273
 274         adaptViewAccordingToAuthenticationMethod();
 275         showServerStatus();
 276         showAuthStatus();
 277
 278         if (mAction == ACTION_UPDATE_TOKEN) {
 279             /// lock things that should not change
 280             mHostUrlInput.setEnabled(false);
 281             mHostUrlInput.setFocusable(false);
 282             mUsernameInput.setEnabled(false);
 283             mUsernameInput.setFocusable(false);
 284             mOAuth2Check.setVisibility(View.GONE);
 285         }
 286
 287         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 288         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 289         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 290
 291         if (mCurrentAuthTokenType == AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE ||
 292                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 293             mOAuth2Check.setVisibility(View.GONE);
 294         }
 295
 296         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 297
 298         /// bind view elements to listeners and other friends
 299         mHostUrlInput.setOnFocusChangeListener(this);
 300         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 301
 302             @Override
 303             public void afterTextChanged(Editable s) {
 304                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 305                     mOkButton.setEnabled(false);
 306                 }
 307             }
 308
 309             @Override
 310             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 311
 312             @Override
 313             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 314
 315         });
 316         mPasswordInput.setOnFocusChangeListener(this);
 317         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 318         mPasswordInput.setOnEditorActionListener(this);
 319         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 320             @Override
 321             public boolean onDrawableTouch(final MotionEvent event) {
 322                 if (event.getAction() == MotionEvent.ACTION_UP) {
 323                     AuthenticatorActivity.this.onViewPasswordClick();
 324                 }
 325                 return true;
 326             }
 327         });
 328
 329 //        FragmentManager fm = getSupportFragmentManager();
 330 //
 331 //     // try to find searching by tag name
 332 //      mSamlDialog = (SamlWebViewDialog) fm.findFragmentByTag(TAG_SAML_DIALOG);
 333 //
 334 //     if (mSamlDialog != null) {
 335 //         mSamlDialog.show(fm, TAG_SAML_DIALOG);
 336 //         Log_OC.d(TAG_SAML_DIALOG,  "mSamlDialog not null");
 337 //     }
 338     }
 339
 340
 341     private void initAuthorizationMethod() {
 342         boolean oAuthRequired = false;
 343         boolean samlWebSsoRequired = false;
 344
 345         mCurrentAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 346         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 347
 348         // TODO could be a good moment to validate the received token type, if not null
 349
 350         if (mCurrentAuthTokenType == null) {
 351             if (mAccount != null) {
 352                 /// same authentication method than the one used to create the account to update
 353                 oAuthRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2) != null);
 354                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 355
 356             } else {
 357                 /// use the one set in setup.xml
 358                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 359                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 360             }
 361             if (oAuthRequired) {
 362                 mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
 363             } else if (samlWebSsoRequired) {
 364                 mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE;
 365             } else {
 366                 mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
 367             }
 368         }
 369
 370         if (mAccount != null) {
 371             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 372             mUsernameInput.setText(userName);
 373         }
 374     }
 375
 376     /**
 377      * Saves relevant state before {@link #onPause()}
 378      *
 379      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 380      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 381      *
 382      * See {@link #loadSavedInstanceState(Bundle)}
 383      */
 384     @Override
 385     protected void onSaveInstanceState(Bundle outState) {
 386         super.onSaveInstanceState(outState);
 387
 388         /// connection state and info
 389         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 390         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 391         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 392         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 393         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 394         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 395         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 396         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 397         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 398
 399         /// server data
 400         if (mDiscoveredVersion != null) {
 401             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 402         }
 403         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 404
 405         /// account data, if updating
 406         if (mAccount != null) {
 407             outState.putParcelable(KEY_ACCOUNT, mAccount);
 408         }
 409         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mCurrentAuthTokenType);
 410
 411         // refresh button enabled
 412         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 413
 414
 415     }
 416
 417
 418     /**
 419      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 420      * is caught here.
 421      *
 422      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 423      * AndroidManifest.xml file.
 424      */
 425     @Override
 426     protected void onNewIntent (Intent intent) {
 427         Log_OC.d(TAG, "onNewIntent()");
 428         Uri data = intent.getData();
 429         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 430             mNewCapturedUriFromOAuth2Redirection = data;
 431         }
 432     }
 433
 434
 435     /**
 436      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 437      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 438      */
 439     @Override
 440     protected void onResume() {
 441         super.onResume();
 442         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 443             if (mOAuth2Check.isChecked())
 444                 Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 445             else
 446                 Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 447         }
 448
 449         if (mNewCapturedUriFromOAuth2Redirection != null) {
 450             getOAuth2AccessTokenFromCapturedRedirection();
 451         }
 452
 453         mJustCreated = false;
 454
 455
 456         // try to find searching by tag name
 457 //        FragmentManager fm = getSupportFragmentManager();
 458 //         mSamlDialog = (SamlWebViewDialog) fm.findFragmentByTag(TAG_SAML_DIALOG);
 459 //
 460 //        if (mSamlDialog != null) {
 461 //         //   mSamlDialog.show(fm, TAG_SAML_DIALOG);
 462 //            mSamlDialog.setRetainInstance(true);
 463 //        }
 464     }
 465
 466
 467     /**
 468      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 469      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 470      */
 471     private void getOAuth2AccessTokenFromCapturedRedirection() {
 472         /// Parse data from OAuth redirection
 473         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 474         mNewCapturedUriFromOAuth2Redirection = null;
 475
 476         /// Showing the dialog with instructions for the user.
 477         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 478
 479         /// GET ACCESS TOKEN to the oAuth server
 480         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 481                 getString(R.string.oauth2_redirect_uri),
 482                 getString(R.string.oauth2_grant_type),
 483                 queryParameters);
 484         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 485         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 486         operation.execute(client, this, mHandler);
 487     }
 488
 489
 490
 491     /**
 492      * Handles the change of focus on the text inputs for the server URL and the password
 493      */
 494     public void onFocusChange(View view, boolean hasFocus) {
 495         if (view.getId() == R.id.hostUrlInput) {
 496             if (!hasFocus) {
 497                 onUrlInputFocusLost((TextView) view);
 498             }
 499             else {
 500                 hideRefreshButton();
 501             }
 502
 503         } else if (view.getId() == R.id.account_password) {
 504             onPasswordFocusChanged((TextView) view, hasFocus);
 505         }
 506     }
 507
 508
 509     /**
 510      * Handles changes in focus on the text input for the server URL.
 511      *
 512      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 513      * other field. The operation to check the existence of the server in the entered URL is
 514      * started.
 515      *
 516      * When hasFocus:    user 'comes back' to write again the server URL.
 517      *
 518      * @param hostInput     TextView with the URL input field receiving the change of focus.
 519      */
 520     private void onUrlInputFocusLost(TextView hostInput) {
 521         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 522             checkOcServer();
 523         } else {
 524             mOkButton.setEnabled(mServerIsValid);
 525             if (!mServerIsValid) {
 526                 showRefreshButton();
 527             }
 528         }
 529     }
 530
 531
 532     private void checkOcServer() {
 533         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 534
 535         if (!mHostUrlInputEnabled){
 536             uri = getString(R.string.server_url);
 537         }
 538
 539         mServerIsValid = false;
 540         mServerIsChecked = false;
 541         mOkButton.setEnabled(false);
 542         mDiscoveredVersion = null;
 543         hideRefreshButton();
 544         if (uri.length() != 0) {
 545             mServerStatusText = R.string.auth_testing_connection;
 546             mServerStatusIcon = R.drawable.progress_small;
 547             showServerStatus();
 548             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 549             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(uri), this, true);
 550             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 551         } else {
 552             mServerStatusText = 0;
 553             mServerStatusIcon = 0;
 554             showServerStatus();
 555         }
 556     }
 557
 558
 559     /**
 560      * Handles changes in focus on the text input for the password (basic authorization).
 561      *
 562      * When (hasFocus), the button to toggle password visibility is shown.
 563      *
 564      * When (!hasFocus), the button is made invisible and the password is hidden.
 565      *
 566      * @param passwordInput    TextView with the password input field receiving the change of focus.
 567      * @param hasFocus          'True' if focus is received, 'false' if is lost
 568      */
 569     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 570         if (hasFocus) {
 571             showViewPasswordButton();
 572         } else {
 573             hidePassword();
 574             hidePasswordButton();
 575         }
 576     }
 577
 578
 579     private void showViewPasswordButton() {
 580         //int drawable = android.R.drawable.ic_menu_view;
 581         int drawable = R.drawable.ic_view;
 582         if (isPasswordVisible()) {
 583             //drawable = android.R.drawable.ic_secure;
 584             drawable = R.drawable.ic_hide;
 585         }
 586         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 587     }
 588
 589     private boolean isPasswordVisible() {
 590         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 591     }
 592
 593     private void hidePasswordButton() {
 594         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 595     }
 596
 597     private void showPassword() {
 598         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 599         showViewPasswordButton();
 600     }
 601
 602     private void hidePassword() {
 603         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 604         showViewPasswordButton();
 605     }
 606
 607
 608     /**
 609      * Cancels the authenticator activity
 610      *
 611      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 612      *
 613      * This method is bound in the layout/acceoun_setup.xml resource file.
 614      *
 615      * @param view      Cancel button
 616      */
 617     public void onCancelClick(View view) {
 618         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 619         finish();
 620     }
 621
 622
 623
 624     /**
 625      * Checks the credentials of the user in the root of the ownCloud server
 626      * before creating a new local account.
 627      *
 628      * For basic authorization, a check of existence of the root folder is
 629      * performed.
 630      *
 631      * For OAuth, starts the flow to get an access token; the credentials test
 632      * is postponed until it is available.
 633      *
 634      * IMPORTANT ENTRY POINT 4
 635      *
 636      * @param view      OK button
 637      */
 638     public void onOkClick(View view) {
 639         // this check should be unnecessary
 640         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 641             mServerStatusIcon = R.drawable.common_error;
 642             mServerStatusText = R.string.auth_wtf_reenter_URL;
 643             showServerStatus();
 644             mOkButton.setEnabled(false);
 645             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 646             return;
 647         }
 648
 649         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
 650             startOauthorization();
 651         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
 652             startSamlBasedFederatedSingleSignOnAuthorization();
 653         } else {
 654             checkBasicAuthorization();
 655         }
 656     }
 657
 658
 659     /**
 660      * Tests the credentials entered by the user performing a check of existence on
 661      * the root folder of the ownCloud server.
 662      */
 663     private void checkBasicAuthorization() {
 664         /// get the path to the root folder through WebDAV from the version server
 665         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
 666
 667         /// get basic credentials entered by user
 668         String username = mUsernameInput.getText().toString();
 669         String password = mPasswordInput.getText().toString();
 670
 671         /// be gentle with the user
 672         showDialog(DIALOG_LOGIN_PROGRESS);
 673
 674         /// test credentials accessing the root folder
 675         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 676         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 677         client.setBasicCredentials(username, password);
 678         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 679     }
 680
 681
 682     /**
 683      * Starts the OAuth 'grant type' flow to get an access token, with
 684      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 685      */
 686     private void startOauthorization() {
 687         // be gentle with the user
 688         mAuthStatusIcon = R.drawable.progress_small;
 689         mAuthStatusText = R.string.oauth_login_connection;
 690         showAuthStatus();
 691
 692
 693         // GET AUTHORIZATION request
 694         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 695         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 696         Uri.Builder uriBuilder = uri.buildUpon();
 697         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 698         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 699         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 700         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 701         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 702         uri = uriBuilder.build();
 703         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 704         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 705         startActivity(i);
 706     }
 707
 708
 709     /**
 710      * Starts the Web Single Sign On flow to get access to the root folder
 711      * in the server.
 712      */
 713     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 714         // be gentle with the user
 715         mAuthStatusIcon = R.drawable.progress_small;
 716         mAuthStatusText = R.string.auth_connecting_auth_server;
 717         showAuthStatus();
 718         showDialog(DIALOG_LOGIN_PROGRESS);
 719
 720         /// get the path to the root folder through WebDAV from the version server
 721         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
 722
 723         /// test credentials accessing the root folder
 724         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 725         WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 726         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 727     }
 728
 729     /**
 730      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 731      *
 732      * Dispatches the operation flow to the right method.
 733      */
 734     @Override
 735     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 736
 737         if (operation instanceof OwnCloudServerCheckOperation) {
 738             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 739
 740         } else if (operation instanceof OAuth2GetAccessToken) {
 741             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 742
 743         } else if (operation instanceof ExistenceCheckOperation)  {
 744             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
 745                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 746
 747             } else {
 748                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 749             }
 750         }
 751     }
 752
 753
 754     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 755         try {
 756             dismissDialog(DIALOG_LOGIN_PROGRESS);
 757         } catch (IllegalArgumentException e) {
 758             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 759         }
 760
 761         if (result.isTemporalRedirection()) {
 762             String url = result.getRedirectedLocation();
 763             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
 764
 765             // Show dialog
 766             mSamlDialog = SamlWebViewDialog.newInstance(mHandler, url, targetUrl);
 767             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 768
 769             mAuthStatusIcon = android.R.drawable.ic_secure;
 770             mAuthStatusText = R.string.auth_follow_auth_server;
 771
 772         } else {
 773             mAuthStatusIcon = R.drawable.common_error;
 774             mAuthStatusText = R.string.auth_unsupported_auth_method;
 775
 776         }
 777         showAuthStatus();
 778     }
 779
 780
 781     /**
 782      * Processes the result of the server check performed when the user finishes the enter of the
 783      * server URL.
 784      *
 785      * @param operation     Server check performed.
 786      * @param result        Result of the check.
 787      */
 788     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 789         if (operation.equals(mOcServerChkOperation)) {
 790             /// save result state
 791             mServerIsChecked = true;
 792             mServerIsValid = result.isSuccess();
 793             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 794             mOcServerChkOperation = null;
 795
 796             /// update status icon and text
 797             if (mServerIsValid) {
 798                 hideRefreshButton();
 799             } else {
 800                 showRefreshButton();
 801             }
 802             updateServerStatusIconAndText(result);
 803             showServerStatus();
 804
 805             /// very special case (TODO: move to a common place for all the remote operations)
 806             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 807                 mLastSslUntrustedServerResult = result;
 808                 showDialog(DIALOG_SSL_VALIDATOR);
 809             }
 810
 811             /// retrieve discovered version and normalize server URL
 812             mDiscoveredVersion = operation.getDiscoveredVersion();
 813             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 814
 815             /// allow or not the user try to access the server
 816             mOkButton.setEnabled(mServerIsValid);
 817
 818         }   // else nothing ; only the last check operation is considered;
 819         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 820     }
 821
 822
 823     private String normalizeUrl(String url) {
 824         if (url != null && url.length() > 0) {
 825             url = url.trim();
 826             if (!url.toLowerCase().startsWith("http://") &&
 827                     !url.toLowerCase().startsWith("https://")) {
 828                 if (mIsSslConn) {
 829                     url = "https://" + url;
 830                 } else {
 831                     url = "http://" + url;
 832                 }
 833             }
 834
 835             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 836             url = trimUrlWebdav(url);
 837
 838             if (url.endsWith("/")) {
 839                 url = url.substring(0, url.length() - 1);
 840             }
 841
 842         }
 843         Log_OC.d(TAG, "URL Normalize " + url);
 844         return (url != null ? url : "");
 845     }
 846
 847
 848     private String trimUrlWebdav(String url){
 849         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 850             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 851         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 852             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 853         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 854             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 855         }
 856         return (url != null ? url : "");
 857     }
 858
 859
 860     /**
 861      * Chooses the right icon and text to show to the user for the received operation result.
 862      *
 863      * @param result    Result of a remote operation performed in this activity
 864      */
 865     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 866         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 867
 868         switch (result.getCode()) {
 869         case OK_SSL:
 870             mServerStatusIcon = android.R.drawable.ic_secure;
 871             mServerStatusText = R.string.auth_secure_connection;
 872             break;
 873
 874         case OK_NO_SSL:
 875         case OK:
 876             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 877                 mServerStatusText = R.string.auth_connection_established;
 878                 mServerStatusIcon = R.drawable.ic_ok;
 879             } else {
 880                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 881                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 882             }
 883             break;
 884
 885         case NO_NETWORK_CONNECTION:
 886             mServerStatusIcon = R.drawable.no_network;
 887             mServerStatusText = R.string.auth_no_net_conn_title;
 888             break;
 889
 890         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 891             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 892             break;
 893         case BAD_OC_VERSION:
 894             mServerStatusText = R.string.auth_bad_oc_version_title;
 895             break;
 896         case WRONG_CONNECTION:
 897             mServerStatusText = R.string.auth_wrong_connection_title;
 898             break;
 899         case TIMEOUT:
 900             mServerStatusText = R.string.auth_timeout_title;
 901             break;
 902         case INCORRECT_ADDRESS:
 903             mServerStatusText = R.string.auth_incorrect_address_title;
 904             break;
 905         case SSL_ERROR:
 906             mServerStatusText = R.string.auth_ssl_general_error_title;
 907             break;
 908         case UNAUTHORIZED:
 909             mServerStatusText = R.string.auth_unauthorized;
 910             break;
 911         case HOST_NOT_AVAILABLE:
 912             mServerStatusText = R.string.auth_unknown_host_title;
 913             break;
 914         case INSTANCE_NOT_CONFIGURED:
 915             mServerStatusText = R.string.auth_not_configured_title;
 916             break;
 917         case FILE_NOT_FOUND:
 918             mServerStatusText = R.string.auth_incorrect_path_title;
 919             break;
 920         case OAUTH2_ERROR:
 921             mServerStatusText = R.string.auth_oauth_error;
 922             break;
 923         case OAUTH2_ERROR_ACCESS_DENIED:
 924             mServerStatusText = R.string.auth_oauth_error_access_denied;
 925             break;
 926         case UNHANDLED_HTTP_CODE:
 927         case UNKNOWN_ERROR:
 928             mServerStatusText = R.string.auth_unknown_error_title;
 929             break;
 930         default:
 931             mServerStatusText = 0;
 932             mServerStatusIcon = 0;
 933         }
 934     }
 935
 936
 937     /**
 938      * Chooses the right icon and text to show to the user for the received operation result.
 939      *
 940      * @param result    Result of a remote operation performed in this activity
 941      */
 942     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 943         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 944
 945         switch (result.getCode()) {
 946         case OK_SSL:
 947             mAuthStatusIcon = android.R.drawable.ic_secure;
 948             mAuthStatusText = R.string.auth_secure_connection;
 949             break;
 950
 951         case OK_NO_SSL:
 952         case OK:
 953             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 954                 mAuthStatusText = R.string.auth_connection_established;
 955                 mAuthStatusIcon = R.drawable.ic_ok;
 956             } else {
 957                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 958                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 959             }
 960             break;
 961
 962         case NO_NETWORK_CONNECTION:
 963             mAuthStatusIcon = R.drawable.no_network;
 964             mAuthStatusText = R.string.auth_no_net_conn_title;
 965             break;
 966
 967         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 968             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
 969             break;
 970         case BAD_OC_VERSION:
 971             mAuthStatusText = R.string.auth_bad_oc_version_title;
 972             break;
 973         case WRONG_CONNECTION:
 974             mAuthStatusText = R.string.auth_wrong_connection_title;
 975             break;
 976         case TIMEOUT:
 977             mAuthStatusText = R.string.auth_timeout_title;
 978             break;
 979         case INCORRECT_ADDRESS:
 980             mAuthStatusText = R.string.auth_incorrect_address_title;
 981             break;
 982         case SSL_ERROR:
 983             mAuthStatusText = R.string.auth_ssl_general_error_title;
 984             break;
 985         case UNAUTHORIZED:
 986             mAuthStatusText = R.string.auth_unauthorized;
 987             break;
 988         case HOST_NOT_AVAILABLE:
 989             mAuthStatusText = R.string.auth_unknown_host_title;
 990             break;
 991         case INSTANCE_NOT_CONFIGURED:
 992             mAuthStatusText = R.string.auth_not_configured_title;
 993             break;
 994         case FILE_NOT_FOUND:
 995             mAuthStatusText = R.string.auth_incorrect_path_title;
 996             break;
 997         case OAUTH2_ERROR:
 998             mAuthStatusText = R.string.auth_oauth_error;
 999             break;
1000         case OAUTH2_ERROR_ACCESS_DENIED:
1001             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1002             break;
1003         case UNHANDLED_HTTP_CODE:
1004         case UNKNOWN_ERROR:
1005             mAuthStatusText = R.string.auth_unknown_error_title;
1006             break;
1007         default:
1008             mAuthStatusText = 0;
1009             mAuthStatusIcon = 0;
1010         }
1011     }
1012
1013
1014     /**
1015      * Processes the result of the request for and access token send
1016      * to an OAuth authorization server.
1017      *
1018      * @param operation     Operation performed requesting the access token.
1019      * @param result        Result of the operation.
1020      */
1021     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1022         try {
1023             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1024         } catch (IllegalArgumentException e) {
1025             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1026         }
1027
1028         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType);
1029         if (result.isSuccess() && webdav_path != null) {
1030             /// be gentle with the user
1031             showDialog(DIALOG_LOGIN_PROGRESS);
1032
1033             /// time to test the retrieved access token on the ownCloud server
1034             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1035             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1036             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1037             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1038             client.setBearerCredentials(mAuthToken);
1039             mAuthCheckOperation.execute(client, this, mHandler);
1040
1041         } else {
1042             updateAuthStatusIconAndText(result);
1043             showAuthStatus();
1044             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1045         }
1046     }
1047
1048
1049     /**
1050      * Processes the result of the access check performed to try the user credentials.
1051      *
1052      * Creates a new account through the AccountManager.
1053      *
1054      * @param operation     Access check performed.
1055      * @param result        Result of the operation.
1056      */
1057     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1058         try {
1059             dismissDialog(DIALOG_LOGIN_PROGRESS);
1060         } catch (IllegalArgumentException e) {
1061             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1062         }
1063
1064         if (result.isSuccess()) {
1065             Log_OC.d(TAG, "Successful access - time to save the account");
1066
1067             if (mAction == ACTION_CREATE) {
1068                 createAccount();
1069
1070             } else {
1071                 updateToken();
1072             }
1073
1074             finish();
1075
1076         } else if (result.isServerFail() || result.isException()) {
1077             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1078             mServerIsChecked = true;
1079             mServerIsValid = false;
1080             mIsSslConn = false;
1081             mOcServerChkOperation = null;
1082             mDiscoveredVersion = null;
1083             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1084
1085             // update status icon and text
1086             updateServerStatusIconAndText(result);
1087             showServerStatus();
1088             mAuthStatusIcon = 0;
1089             mAuthStatusText = 0;
1090             showAuthStatus();
1091
1092             // update input controls state
1093             showRefreshButton();
1094             mOkButton.setEnabled(false);
1095
1096             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1097             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1098                 mLastSslUntrustedServerResult = result;
1099                 showDialog(DIALOG_SSL_VALIDATOR);
1100             }
1101
1102         } else {    // authorization fail due to client side - probably wrong credentials
1103             updateAuthStatusIconAndText(result);
1104             showAuthStatus();
1105             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1106         }
1107     }
1108
1109
1110     /**
1111      * Sets the proper response to get that the Account Authenticator that started this activity saves
1112      * a new authorization token for mAccount.
1113      */
1114     private void updateToken() {
1115         Bundle response = new Bundle();
1116         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1117         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1118
1119         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
1120             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1121             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1122             mAccountMgr.setAuthToken(mAccount, mCurrentAuthTokenType, mAuthToken);
1123
1124         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
1125             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1126             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1127             mAccountMgr.setAuthToken(mAccount, mCurrentAuthTokenType, mAuthToken);
1128
1129         } else {
1130             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1131             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1132         }
1133         setAccountAuthenticatorResult(response);
1134     }
1135
1136
1137     /**
1138      * Creates a new account through the Account Authenticator that started this activity.
1139      *
1140      * This makes the account permanent.
1141      *
1142      * TODO Decide how to name the OAuth accounts
1143      */
1144     private void createAccount() {
1145         /// create and save new ownCloud account
1146         boolean isOAuth = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType);
1147         boolean isSaml =  AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType);
1148
1149         Uri uri = Uri.parse(mHostBaseUrl);
1150         String username = mUsernameInput.getText().toString().trim();
1151         if (isSaml) {
1152             username = mAccountNameInput.getText().toString().trim();
1153
1154         } else if (isOAuth) {
1155             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1156         }
1157         String accountName = username + "@" + uri.getHost();
1158         if (uri.getPort() >= 0) {
1159             accountName += ":" + uri.getPort();
1160         }
1161         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1162         if (isOAuth || isSaml) {
1163             mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1164         } else {
1165             mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1166         }
1167
1168         /// add the new account as default in preferences, if there is none already
1169         Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1170         if (defaultAccount == null) {
1171             SharedPreferences.Editor editor = PreferenceManager
1172                     .getDefaultSharedPreferences(this).edit();
1173             editor.putString("select_oc_account", accountName);
1174             editor.commit();
1175         }
1176
1177         /// prepare result to return to the Authenticator
1178         //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1179         final Intent intent = new Intent();
1180         intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1181         intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1182         /*if (!isOAuth)
1183             intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); */
1184         intent.putExtra(AccountManager.KEY_USERDATA,        username);
1185         if (isOAuth || isSaml) {
1186             mAccountMgr.setAuthToken(mAccount, mCurrentAuthTokenType, mAuthToken);
1187         }
1188         /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1189         mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1190         mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1191         if (isSaml) {
1192             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1193         } else if (isOAuth) {
1194             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1195         }
1196
1197         setAccountAuthenticatorResult(intent.getExtras());
1198         setResult(RESULT_OK, intent);
1199
1200         /// immediately request for the synchronization of the new account
1201         Bundle bundle = new Bundle();
1202         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1203         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1204     }
1205
1206
1207     /**
1208      * {@inheritDoc}
1209      *
1210      * Necessary to update the contents of the SSL Dialog
1211      *
1212      * TODO move to some common place for all possible untrusted SSL failures
1213      */
1214     @Override
1215     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1216         switch (id) {
1217         case DIALOG_LOGIN_PROGRESS:
1218         case DIALOG_CERT_NOT_SAVED:
1219         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1220             break;
1221         case DIALOG_SSL_VALIDATOR: {
1222             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1223             break;
1224         }
1225         default:
1226             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1227         }
1228     }
1229
1230
1231     /**
1232      * {@inheritDoc}
1233      */
1234     @Override
1235     protected Dialog onCreateDialog(int id) {
1236         Dialog dialog = null;
1237         switch (id) {
1238         case DIALOG_LOGIN_PROGRESS: {
1239             /// simple progress dialog
1240             ProgressDialog working_dialog = new ProgressDialog(this);
1241             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1242             working_dialog.setIndeterminate(true);
1243             working_dialog.setCancelable(true);
1244             working_dialog
1245             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1246                 @Override
1247                 public void onCancel(DialogInterface dialog) {
1248                     /// TODO study if this is enough
1249                     Log_OC.i(TAG, "Login canceled");
1250                     if (mOperationThread != null) {
1251                         mOperationThread.interrupt();
1252                         finish();
1253                     }
1254                 }
1255             });
1256             dialog = working_dialog;
1257             break;
1258         }
1259         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1260             ProgressDialog working_dialog = new ProgressDialog(this);
1261             working_dialog.setMessage(String.format("Getting authorization"));
1262             working_dialog.setIndeterminate(true);
1263             working_dialog.setCancelable(true);
1264             working_dialog
1265             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1266                 @Override
1267                 public void onCancel(DialogInterface dialog) {
1268                     Log_OC.i(TAG, "Login canceled");
1269                     finish();
1270                 }
1271             });
1272             dialog = working_dialog;
1273             break;
1274         }
1275         case DIALOG_SSL_VALIDATOR: {
1276             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1277             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1278             break;
1279         }
1280         case DIALOG_CERT_NOT_SAVED: {
1281             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1282             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1283             builder.setCancelable(false);
1284             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1285                 @Override
1286                 public void onClick(DialogInterface dialog, int which) {
1287                     dialog.dismiss();
1288                 };
1289             });
1290             dialog = builder.create();
1291             break;
1292         }
1293         default:
1294             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1295         }
1296         return dialog;
1297     }
1298
1299
1300     /**
1301      * Starts and activity to open the 'new account' page in the ownCloud web site
1302      *
1303      * @param view      'Account register' button
1304      */
1305     public void onRegisterClick(View view) {
1306         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1307         setResult(RESULT_CANCELED);
1308         startActivity(register);
1309     }
1310
1311
1312     /**
1313      * Updates the content and visibility state of the icon and text associated
1314      * to the last check on the ownCloud server.
1315      */
1316     private void showServerStatus() {
1317         TextView tv = (TextView) findViewById(R.id.server_status_text);
1318
1319         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1320             tv.setVisibility(View.INVISIBLE);
1321
1322         } else {
1323             tv.setText(mServerStatusText);
1324             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1325             tv.setVisibility(View.VISIBLE);
1326         }
1327
1328     }
1329
1330
1331     /**
1332      * Updates the content and visibility state of the icon and text associated
1333      * to the interactions with the OAuth authorization server.
1334      */
1335     private void showAuthStatus() {
1336         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1337             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1338
1339         } else {
1340             mAuthStatusLayout.setText(mAuthStatusText);
1341             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1342             mAuthStatusLayout.setVisibility(View.VISIBLE);
1343         }
1344     }
1345
1346
1347     private void showRefreshButton() {
1348         mRefreshButton.setVisibility(View.VISIBLE);
1349     }
1350
1351     private void hideRefreshButton() {
1352         mRefreshButton.setVisibility(View.GONE);
1353     }
1354
1355     /**
1356      * Called when the refresh button in the input field for ownCloud host is clicked.
1357      *
1358      * Performs a new check on the URL in the input field.
1359      *
1360      * @param view      Refresh 'button'
1361      */
1362     public void onRefreshClick(View view) {
1363         checkOcServer();
1364     }
1365
1366
1367     /**
1368      * Called when the eye icon in the password field is clicked.
1369      *
1370      * Toggles the visibility of the password in the field.
1371      */
1372     public void onViewPasswordClick() {
1373         int selectionStart = mPasswordInput.getSelectionStart();
1374         int selectionEnd = mPasswordInput.getSelectionEnd();
1375         if (isPasswordVisible()) {
1376             hidePassword();
1377         } else {
1378             showPassword();
1379         }
1380         mPasswordInput.setSelection(selectionStart, selectionEnd);
1381     }
1382
1383
1384     /**
1385      * Called when the checkbox for OAuth authorization is clicked.
1386      *
1387      * Hides or shows the input fields for user & password.
1388      *
1389      * @param view      'View password' 'button'
1390      */
1391     public void onCheckClick(View view) {
1392         CheckBox oAuth2Check = (CheckBox)view;
1393         if (oAuth2Check.isChecked()) {
1394             mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
1395         } else {
1396             mCurrentAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
1397         }
1398         adaptViewAccordingToAuthenticationMethod();
1399     }
1400
1401
1402     /**
1403      * Changes the visibility of input elements depending on
1404      * the current authorization method.
1405      */
1406     private void adaptViewAccordingToAuthenticationMethod () {
1407         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mCurrentAuthTokenType)) {
1408             // OAuth 2 authorization
1409             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1410             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1411             mUsernameInput.setVisibility(View.GONE);
1412             mPasswordInput.setVisibility(View.GONE);
1413             mAccountNameInput.setVisibility(View.GONE);
1414
1415         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mCurrentAuthTokenType)) {
1416             // SAML-based web Single Sign On
1417             mOAuthAuthEndpointText.setVisibility(View.GONE);
1418             mOAuthTokenEndpointText.setVisibility(View.GONE);
1419             mUsernameInput.setVisibility(View.GONE);
1420             mPasswordInput.setVisibility(View.GONE);
1421             mAccountNameInput.setVisibility(View.VISIBLE);
1422
1423         } else {
1424             // basic HTTP authorization
1425             mOAuthAuthEndpointText.setVisibility(View.GONE);
1426             mOAuthTokenEndpointText.setVisibility(View.GONE);
1427             mUsernameInput.setVisibility(View.VISIBLE);
1428             mPasswordInput.setVisibility(View.VISIBLE);
1429             mAccountNameInput.setVisibility(View.GONE);
1430         }
1431     }
1432
1433     /**
1434      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1435      */
1436     public void onSavedCertificate() {
1437         checkOcServer();
1438     }
1439
1440     /**
1441      * Called from SslValidatorDialog when a new server certificate could not be saved
1442      * when the user requested it.
1443      */
1444     @Override
1445     public void onFailedSavingCertificate() {
1446         showDialog(DIALOG_CERT_NOT_SAVED);
1447     }
1448
1449
1450     /**
1451      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1452      *
1453      *  Used to trigger the authorization check when the user presses 'enter' after writing the password.
1454      */
1455     @Override
1456     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1457         if (inputField != null && inputField.equals(mPasswordInput) &&
1458                 actionId == EditorInfo.IME_ACTION_DONE) {
1459             if (mOkButton.isEnabled()) {
1460                 mOkButton.performClick();
1461             }
1462         }
1463         return false;   // always return false to grant that the software keyboard is hidden anyway
1464     }
1465
1466
1467     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1468
1469         private int fuzz = 75;
1470
1471         /**
1472          * {@inheritDoc}
1473          */
1474         @Override
1475         public boolean onTouch(View view, MotionEvent event) {
1476             Drawable rightDrawable = null;
1477             if (view instanceof TextView) {
1478                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1479                 if (drawables.length > 2) {
1480                     rightDrawable = drawables[2];
1481                 }
1482             }
1483             if (rightDrawable != null) {
1484                 final int x = (int) event.getX();
1485                 final int y = (int) event.getY();
1486                 final Rect bounds = rightDrawable.getBounds();
1487                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1488                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1489
1490                     return onDrawableTouch(event);
1491                 }
1492             }
1493             return false;
1494         }
1495
1496         public abstract boolean onDrawableTouch(final MotionEvent event);
1497     }
1498
1499
1500     public void onSamlDialogSuccess(String sessionCookie){
1501         mAuthToken = sessionCookie;
1502
1503         if (sessionCookie != null && sessionCookie.length() > 0) {
1504           Log_OC.d(TAG, "Successful SSO - time to save the account");
1505           mAuthToken = sessionCookie;
1506           if (mAction == ACTION_CREATE) {
1507               createAccount();
1508
1509           } else {
1510               updateToken();
1511           }
1512
1513           finish();
1514
1515       }
1516     }
1517
1518 }