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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.ContentResolver;
  27 import android.content.DialogInterface;
  28 import android.content.Intent;
  29 import android.content.SharedPreferences;
  30 import android.graphics.Rect;
  31 import android.graphics.drawable.Drawable;
  32 import android.net.Uri;
  33 import android.os.Bundle;
  34 import android.os.Handler;
  35 import android.preference.PreferenceManager;
  36 import android.support.v4.app.Fragment;
  37 import android.text.Editable;
  38 import android.text.InputType;
  39 import android.text.TextWatcher;
  40 import android.view.KeyEvent;
  41 import android.view.MotionEvent;
  42 import android.view.View;
  43 import android.view.View.OnFocusChangeListener;
  44 import android.view.View.OnTouchListener;
  45 import android.view.Window;
  46 import android.view.inputmethod.EditorInfo;
  47 import android.widget.Button;
  48 import android.widget.CheckBox;
  49 import android.widget.EditText;
  50 import android.widget.TextView;
  51 import android.widget.TextView.OnEditorActionListener;
  52
  53 import com.actionbarsherlock.app.SherlockDialogFragment;
  54 import com.owncloud.android.MainApp;
  55 import com.owncloud.android.R;
  56 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  57 import com.owncloud.android.oc_framework.accounts.AccountTypeUtils;
  58 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  59 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  60 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  61 import com.owncloud.android.operations.ExistenceCheckOperation;
  62 import com.owncloud.android.operations.OAuth2GetAccessToken;
  63 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  64 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  65 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  66 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  67 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  68 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  71 import com.owncloud.android.utils.Log_OC;
  72 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  73
  74 /**
  75  * This Activity is used to add an ownCloud account to the App
  76  *
  77  * @author Bartek Przybylski
  78  * @author David A. Velasco
  79  */
  80 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  81 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  82
  83     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  84
  85     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  86     public static final String EXTRA_USER_NAME = "USER_NAME";
  87     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  88     public static final String EXTRA_ACTION = "ACTION";
  89     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  90
  91     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  92     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  93     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  94     private static final String KEY_OC_VERSION = "OC_VERSION";
  95     private static final String KEY_ACCOUNT = "ACCOUNT";
  96     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  97     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  98     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  99     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 100     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 101     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 102     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 103     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 104     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 105     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 106
 107     private static final String KEY_OC_USERNAME_EQUALS = "oc_username=";
 108
 109     private static final String AUTH_ON = "on";
 110     private static final String AUTH_OFF = "off";
 111     private static final String AUTH_OPTIONAL = "optional";
 112
 113     private static final int DIALOG_LOGIN_PROGRESS = 0;
 114     private static final int DIALOG_SSL_VALIDATOR = 1;
 115     private static final int DIALOG_CERT_NOT_SAVED = 2;
 116     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 117
 118     public static final byte ACTION_CREATE = 0;
 119     public static final byte ACTION_UPDATE_TOKEN = 1;
 120
 121     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 122
 123     private String mHostBaseUrl;
 124     private OwnCloudVersion mDiscoveredVersion;
 125
 126     private String mAuthMessageText;
 127     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 128     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 129     private int mAuthStatusText, mAuthStatusIcon;
 130     private TextView mAuthStatusLayout;
 131
 132     private final Handler mHandler = new Handler();
 133     private Thread mOperationThread;
 134     private OwnCloudServerCheckOperation mOcServerChkOperation;
 135     private ExistenceCheckOperation mAuthCheckOperation;
 136     private RemoteOperationResult mLastSslUntrustedServerResult;
 137
 138     private Uri mNewCapturedUriFromOAuth2Redirection;
 139
 140     private AccountManager mAccountMgr;
 141     private boolean mJustCreated;
 142     private byte mAction;
 143     private Account mAccount;
 144
 145     private TextView mAuthMessage;
 146
 147     private EditText mHostUrlInput;
 148     private boolean mHostUrlInputEnabled;
 149     private View mRefreshButton;
 150
 151     private String mAuthTokenType;
 152
 153     private EditText mUsernameInput;
 154     private EditText mPasswordInput;
 155
 156     private CheckBox mOAuth2Check;
 157
 158     private TextView mOAuthAuthEndpointText;
 159     private TextView mOAuthTokenEndpointText;
 160
 161     private SamlWebViewDialog mSamlDialog;
 162
 163     private View mOkButton;
 164
 165     private String mAuthToken;
 166
 167     private boolean mResumed; // Control if activity is resumed
 168
 169
 170     /**
 171      * {@inheritDoc}
 172      *
 173      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 174      */
 175     @Override
 176     protected void onCreate(Bundle savedInstanceState) {
 177         super.onCreate(savedInstanceState);
 178         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 179
 180         /// set view and get references to view elements
 181         setContentView(R.layout.account_setup);
 182         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 183         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 184         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 185         mUsernameInput = (EditText) findViewById(R.id.account_username);
 186         mPasswordInput = (EditText) findViewById(R.id.account_password);
 187         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 188         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 189         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 190         mOkButton = findViewById(R.id.buttonOK);
 191         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 192
 193         /// set Host Url Input Enabled
 194         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 195
 196         /// set visibility of link for new users
 197         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 198         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 199         if (welcomeLink != null) {
 200             if (accountRegisterVisibility) {
 201                 welcomeLink.setVisibility(View.VISIBLE);
 202                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 203             } else {
 204                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 205             }
 206         }
 207
 208         /// initialization
 209         mAccountMgr = AccountManager.get(this);
 210         mNewCapturedUriFromOAuth2Redirection = null;
 211         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 212         mAccount = null;
 213         mHostBaseUrl = "";
 214         boolean refreshButtonEnabled = false;
 215
 216         // URL input configuration applied
 217         if (!mHostUrlInputEnabled)
 218         {
 219             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 220             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 221
 222         } else {
 223             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 224         }
 225
 226         if (savedInstanceState == null) {
 227             mResumed = false;
 228             /// connection state and info
 229             mAuthMessageVisibility = View.GONE;
 230             mServerStatusText = mServerStatusIcon = 0;
 231             mServerIsValid = false;
 232             mServerIsChecked = false;
 233             mIsSslConn = false;
 234             mAuthStatusText = mAuthStatusIcon = 0;
 235
 236             /// retrieve extras from intent
 237             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 238             if (mAccount != null) {
 239                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 240                 if (ocVersion != null) {
 241                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 242                 }
 243                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 244                 mHostUrlInput.setText(mHostBaseUrl);
 245                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 246                 mUsernameInput.setText(userName);
 247             }
 248             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 249             mJustCreated = true;
 250
 251             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 252                 checkOcServer();
 253             }
 254
 255         } else {
 256             mResumed = true;
 257             /// connection state and info
 258             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 259             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 260             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 261             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 262             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 263             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 264             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 265             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 266             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 267             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 268                 showPassword();
 269             }
 270
 271             /// server data
 272             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 273             if (ocVersion != null) {
 274                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 275             }
 276             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 277
 278             // account data, if updating
 279             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 280             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 281             if (mAuthTokenType == null) {
 282                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 283
 284             }
 285
 286             // check if server check was interrupted by a configuration change
 287             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 288                 checkOcServer();
 289             }
 290
 291             // refresh button enabled
 292             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 293
 294
 295         }
 296
 297         if (mAuthMessageVisibility== View.VISIBLE) {
 298             showAuthMessage(mAuthMessageText);
 299         }
 300         else {
 301             hideAuthMessage();
 302         }
 303         adaptViewAccordingToAuthenticationMethod();
 304         showServerStatus();
 305         showAuthStatus();
 306
 307         if (mAction == ACTION_UPDATE_TOKEN) {
 308             /// lock things that should not change
 309             mHostUrlInput.setEnabled(false);
 310             mHostUrlInput.setFocusable(false);
 311             mUsernameInput.setEnabled(false);
 312             mUsernameInput.setFocusable(false);
 313             mOAuth2Check.setVisibility(View.GONE);
 314         }
 315
 316         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 317         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 318         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 319
 320         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 321                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 322             mOAuth2Check.setVisibility(View.GONE);
 323         }
 324
 325         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 326
 327         /// bind view elements to listeners and other friends
 328         mHostUrlInput.setOnFocusChangeListener(this);
 329         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 330         mHostUrlInput.setOnEditorActionListener(this);
 331         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 332
 333             @Override
 334             public void afterTextChanged(Editable s) {
 335                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 336                     mOkButton.setEnabled(false);
 337                 }
 338             }
 339
 340             @Override
 341             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 342             }
 343
 344             @Override
 345             public void onTextChanged(CharSequence s, int start, int before, int count) {
 346                 if (!mResumed) {
 347                     mAuthStatusIcon = 0;
 348                     mAuthStatusText = 0;
 349                     showAuthStatus();
 350                 }
 351                 mResumed = false;
 352             }
 353         });
 354
 355         mPasswordInput.setOnFocusChangeListener(this);
 356         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 357         mPasswordInput.setOnEditorActionListener(this);
 358         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 359             @Override
 360             public boolean onDrawableTouch(final MotionEvent event) {
 361                 if (event.getAction() == MotionEvent.ACTION_UP) {
 362                     AuthenticatorActivity.this.onViewPasswordClick();
 363                 }
 364                 return true;
 365             }
 366         });
 367
 368         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 369             @Override
 370             public boolean onTouch(View view, MotionEvent event) {
 371                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 372                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 373                             mHostUrlInput.hasFocus()) {
 374                         checkOcServer();
 375                     }
 376                 }
 377                 return false;
 378             }
 379         });
 380     }
 381
 382
 383
 384     private void initAuthorizationMethod() {
 385         boolean oAuthRequired = false;
 386         boolean samlWebSsoRequired = false;
 387
 388         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 389         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 390
 391         // TODO could be a good moment to validate the received token type, if not null
 392
 393         if (mAuthTokenType == null) {
 394             if (mAccount != null) {
 395                 /// same authentication method than the one used to create the account to update
 396                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 397                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 398
 399             } else {
 400                 /// use the one set in setup.xml
 401                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 402                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 403             }
 404             if (oAuthRequired) {
 405                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 406             } else if (samlWebSsoRequired) {
 407                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 408             } else {
 409                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 410             }
 411         }
 412
 413         if (mAccount != null) {
 414             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 415             mUsernameInput.setText(userName);
 416         }
 417
 418         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 419
 420     }
 421
 422     /**
 423      * Saves relevant state before {@link #onPause()}
 424      *
 425      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 426      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 427      *
 428      * See {@link #loadSavedInstanceState(Bundle)}
 429      */
 430     @Override
 431     protected void onSaveInstanceState(Bundle outState) {
 432         super.onSaveInstanceState(outState);
 433
 434         /// connection state and info
 435         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 436         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 437         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 438         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 439         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 440         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 441         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 442         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 443         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 444         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 445         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 446
 447         /// server data
 448         if (mDiscoveredVersion != null) {
 449             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 450         }
 451         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 452
 453         /// account data, if updating
 454         if (mAccount != null) {
 455             outState.putParcelable(KEY_ACCOUNT, mAccount);
 456         }
 457         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 458
 459         // refresh button enabled
 460         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 461
 462
 463     }
 464
 465
 466     /**
 467      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 468      * is caught here.
 469      *
 470      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 471      * AndroidManifest.xml file.
 472      */
 473     @Override
 474     protected void onNewIntent (Intent intent) {
 475         Log_OC.d(TAG, "onNewIntent()");
 476         Uri data = intent.getData();
 477         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 478             mNewCapturedUriFromOAuth2Redirection = data;
 479         }
 480     }
 481
 482
 483     /**
 484      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 485      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 486      */
 487     @Override
 488     protected void onResume() {
 489         super.onResume();
 490         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 491             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 492                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 493                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 494             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 495                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 496                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 497             } else {
 498                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 499                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 500             }
 501         }
 502
 503         if (mNewCapturedUriFromOAuth2Redirection != null) {
 504             getOAuth2AccessTokenFromCapturedRedirection();
 505         }
 506
 507         mJustCreated = false;
 508
 509     }
 510
 511
 512     /**
 513      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 514      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 515      */
 516     private void getOAuth2AccessTokenFromCapturedRedirection() {
 517         /// Parse data from OAuth redirection
 518         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 519         mNewCapturedUriFromOAuth2Redirection = null;
 520
 521         /// Showing the dialog with instructions for the user.
 522         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 523
 524         /// GET ACCESS TOKEN to the oAuth server
 525         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 526                 getString(R.string.oauth2_redirect_uri),
 527                 getString(R.string.oauth2_grant_type),
 528                 queryParameters);
 529         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 530         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 531         operation.execute(client, this, mHandler);
 532     }
 533
 534
 535
 536     /**
 537      * Handles the change of focus on the text inputs for the server URL and the password
 538      */
 539     public void onFocusChange(View view, boolean hasFocus) {
 540         if (view.getId() == R.id.hostUrlInput) {
 541             if (!hasFocus) {
 542                 onUrlInputFocusLost((TextView) view);
 543             }
 544             else {
 545                 hideRefreshButton();
 546             }
 547
 548         } else if (view.getId() == R.id.account_password) {
 549             onPasswordFocusChanged((TextView) view, hasFocus);
 550         }
 551     }
 552
 553
 554     /**
 555      * Handles changes in focus on the text input for the server URL.
 556      *
 557      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 558      * other field. The operation to check the existence of the server in the entered URL is
 559      * started.
 560      *
 561      * When hasFocus:    user 'comes back' to write again the server URL.
 562      *
 563      * @param hostInput     TextView with the URL input field receiving the change of focus.
 564      */
 565     private void onUrlInputFocusLost(TextView hostInput) {
 566         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 567             checkOcServer();
 568         } else {
 569             mOkButton.setEnabled(mServerIsValid);
 570             if (!mServerIsValid) {
 571                 showRefreshButton();
 572             }
 573         }
 574     }
 575
 576
 577     private void checkOcServer() {
 578         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 579
 580         if (!mHostUrlInputEnabled){
 581             uri = getString(R.string.server_url);
 582         }
 583
 584         mServerIsValid = false;
 585         mServerIsChecked = false;
 586         mOkButton.setEnabled(false);
 587         mDiscoveredVersion = null;
 588         hideRefreshButton();
 589         if (uri.length() != 0) {
 590             mServerStatusText = R.string.auth_testing_connection;
 591             mServerStatusIcon = R.drawable.progress_small;
 592             showServerStatus();
 593             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 594             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 595             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 596         } else {
 597             mServerStatusText = 0;
 598             mServerStatusIcon = 0;
 599             showServerStatus();
 600         }
 601     }
 602
 603
 604     /**
 605      * Handles changes in focus on the text input for the password (basic authorization).
 606      *
 607      * When (hasFocus), the button to toggle password visibility is shown.
 608      *
 609      * When (!hasFocus), the button is made invisible and the password is hidden.
 610      *
 611      * @param passwordInput    TextView with the password input field receiving the change of focus.
 612      * @param hasFocus          'True' if focus is received, 'false' if is lost
 613      */
 614     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 615         if (hasFocus) {
 616             showViewPasswordButton();
 617         } else {
 618             hidePassword();
 619             hidePasswordButton();
 620         }
 621     }
 622
 623
 624     private void showViewPasswordButton() {
 625         //int drawable = android.R.drawable.ic_menu_view;
 626         int drawable = R.drawable.ic_view;
 627         if (isPasswordVisible()) {
 628             //drawable = android.R.drawable.ic_secure;
 629             drawable = R.drawable.ic_hide;
 630         }
 631         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 632     }
 633
 634     private boolean isPasswordVisible() {
 635         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 636     }
 637
 638     private void hidePasswordButton() {
 639         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 640     }
 641
 642     private void showPassword() {
 643         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 644         showViewPasswordButton();
 645     }
 646
 647     private void hidePassword() {
 648         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 649         showViewPasswordButton();
 650     }
 651
 652
 653     /**
 654      * Cancels the authenticator activity
 655      *
 656      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 657      *
 658      * This method is bound in the layout/acceoun_setup.xml resource file.
 659      *
 660      * @param view      Cancel button
 661      */
 662     public void onCancelClick(View view) {
 663         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 664         finish();
 665     }
 666
 667
 668
 669     /**
 670      * Checks the credentials of the user in the root of the ownCloud server
 671      * before creating a new local account.
 672      *
 673      * For basic authorization, a check of existence of the root folder is
 674      * performed.
 675      *
 676      * For OAuth, starts the flow to get an access token; the credentials test
 677      * is postponed until it is available.
 678      *
 679      * IMPORTANT ENTRY POINT 4
 680      *
 681      * @param view      OK button
 682      */
 683     public void onOkClick(View view) {
 684         // this check should be unnecessary
 685         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 686             mServerStatusIcon = R.drawable.common_error;
 687             mServerStatusText = R.string.auth_wtf_reenter_URL;
 688             showServerStatus();
 689             mOkButton.setEnabled(false);
 690             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 691             return;
 692         }
 693
 694         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 695             startOauthorization();
 696         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 697             startSamlBasedFederatedSingleSignOnAuthorization();
 698         } else {
 699             checkBasicAuthorization();
 700         }
 701     }
 702
 703
 704     /**
 705      * Tests the credentials entered by the user performing a check of existence on
 706      * the root folder of the ownCloud server.
 707      */
 708     private void checkBasicAuthorization() {
 709         /// get the path to the root folder through WebDAV from the version server
 710         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 711
 712         /// get basic credentials entered by user
 713         String username = mUsernameInput.getText().toString();
 714         String password = mPasswordInput.getText().toString();
 715
 716         /// be gentle with the user
 717         showDialog(DIALOG_LOGIN_PROGRESS);
 718
 719         /// test credentials accessing the root folder
 720         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 721         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 722         client.setBasicCredentials(username, password);
 723         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 724     }
 725
 726
 727     /**
 728      * Starts the OAuth 'grant type' flow to get an access token, with
 729      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 730      */
 731     private void startOauthorization() {
 732         // be gentle with the user
 733         mAuthStatusIcon = R.drawable.progress_small;
 734         mAuthStatusText = R.string.oauth_login_connection;
 735         showAuthStatus();
 736
 737
 738         // GET AUTHORIZATION request
 739         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 740         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 741         Uri.Builder uriBuilder = uri.buildUpon();
 742         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 743         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 744         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 745         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 746         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 747         uri = uriBuilder.build();
 748         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 749         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 750         startActivity(i);
 751     }
 752
 753
 754     /**
 755      * Starts the Web Single Sign On flow to get access to the root folder
 756      * in the server.
 757      */
 758     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 759         // be gentle with the user
 760         mAuthStatusIcon = R.drawable.progress_small;
 761         mAuthStatusText = R.string.auth_connecting_auth_server;
 762         showAuthStatus();
 763         showDialog(DIALOG_LOGIN_PROGRESS);
 764
 765         /// get the path to the root folder through WebDAV from the version server
 766         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 767
 768         /// test credentials accessing the root folder
 769         mAuthCheckOperation = new  ExistenceCheckOperation("", this, false);
 770         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 771         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 772
 773     }
 774
 775     /**
 776      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 777      *
 778      * Dispatches the operation flow to the right method.
 779      */
 780     @Override
 781     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 782
 783         if (operation instanceof OwnCloudServerCheckOperation) {
 784             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 785
 786         } else if (operation instanceof OAuth2GetAccessToken) {
 787             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 788
 789         } else if (operation instanceof ExistenceCheckOperation)  {
 790             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 791                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 792
 793             } else {
 794                 onAuthorizationCheckFinish((ExistenceCheckOperation)operation, result);
 795             }
 796         }
 797     }
 798
 799
 800     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 801         try {
 802             dismissDialog(DIALOG_LOGIN_PROGRESS);
 803         } catch (IllegalArgumentException e) {
 804             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 805         }
 806
 807         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 808         if (result.isIdPRedirection()) {
 809             String url = result.getRedirectedLocation();
 810             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 811
 812             // Show dialog
 813             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 814             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 815
 816             mAuthStatusIcon = 0;
 817             mAuthStatusText = 0;
 818
 819         } else {
 820             mAuthStatusIcon = R.drawable.common_error;
 821             mAuthStatusText = R.string.auth_unsupported_auth_method;
 822
 823         }
 824         showAuthStatus();
 825     }
 826
 827
 828     /**
 829      * Processes the result of the server check performed when the user finishes the enter of the
 830      * server URL.
 831      *
 832      * @param operation     Server check performed.
 833      * @param result        Result of the check.
 834      */
 835     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 836         if (operation.equals(mOcServerChkOperation)) {
 837             /// save result state
 838             mServerIsChecked = true;
 839             mServerIsValid = result.isSuccess();
 840             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 841             mOcServerChkOperation = null;
 842
 843             /// update status icon and text
 844             if (mServerIsValid) {
 845                 hideRefreshButton();
 846             } else {
 847                 showRefreshButton();
 848             }
 849             updateServerStatusIconAndText(result);
 850             showServerStatus();
 851
 852             /// very special case (TODO: move to a common place for all the remote operations)
 853             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 854                 mLastSslUntrustedServerResult = result;
 855                 showDialog(DIALOG_SSL_VALIDATOR);
 856             }
 857
 858             /// retrieve discovered version and normalize server URL
 859             mDiscoveredVersion = operation.getDiscoveredVersion();
 860             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 861
 862             /// allow or not the user try to access the server
 863             mOkButton.setEnabled(mServerIsValid);
 864
 865         }   // else nothing ; only the last check operation is considered;
 866         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 867     }
 868
 869
 870     private String normalizeUrl(String url) {
 871         if (url != null && url.length() > 0) {
 872             url = url.trim();
 873             if (!url.toLowerCase().startsWith("http://") &&
 874                     !url.toLowerCase().startsWith("https://")) {
 875                 if (mIsSslConn) {
 876                     url = "https://" + url;
 877                 } else {
 878                     url = "http://" + url;
 879                 }
 880             }
 881
 882             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 883             url = trimUrlWebdav(url);
 884
 885             if (url.endsWith("/")) {
 886                 url = url.substring(0, url.length() - 1);
 887             }
 888
 889         }
 890         return (url != null ? url : "");
 891     }
 892
 893
 894     private String trimUrlWebdav(String url){
 895         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 896             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 897         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 898             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 899         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 900             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 901         }
 902         return (url != null ? url : "");
 903     }
 904
 905
 906     /**
 907      * Chooses the right icon and text to show to the user for the received operation result.
 908      *
 909      * @param result    Result of a remote operation performed in this activity
 910      */
 911     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 912         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 913
 914         switch (result.getCode()) {
 915         case OK_SSL:
 916             mServerStatusIcon = android.R.drawable.ic_secure;
 917             mServerStatusText = R.string.auth_secure_connection;
 918             break;
 919
 920         case OK_NO_SSL:
 921         case OK:
 922             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 923                 mServerStatusText = R.string.auth_connection_established;
 924                 mServerStatusIcon = R.drawable.ic_ok;
 925             } else {
 926                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 927                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 928             }
 929             break;
 930
 931         case NO_NETWORK_CONNECTION:
 932             mServerStatusIcon = R.drawable.no_network;
 933             mServerStatusText = R.string.auth_no_net_conn_title;
 934             break;
 935
 936         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 937             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 938             break;
 939         case BAD_OC_VERSION:
 940             mServerStatusText = R.string.auth_bad_oc_version_title;
 941             break;
 942         case WRONG_CONNECTION:
 943             mServerStatusText = R.string.auth_wrong_connection_title;
 944             break;
 945         case TIMEOUT:
 946             mServerStatusText = R.string.auth_timeout_title;
 947             break;
 948         case INCORRECT_ADDRESS:
 949             mServerStatusText = R.string.auth_incorrect_address_title;
 950             break;
 951         case SSL_ERROR:
 952             mServerStatusText = R.string.auth_ssl_general_error_title;
 953             break;
 954         case UNAUTHORIZED:
 955             mServerStatusText = R.string.auth_unauthorized;
 956             break;
 957         case HOST_NOT_AVAILABLE:
 958             mServerStatusText = R.string.auth_unknown_host_title;
 959             break;
 960         case INSTANCE_NOT_CONFIGURED:
 961             mServerStatusText = R.string.auth_not_configured_title;
 962             break;
 963         case FILE_NOT_FOUND:
 964             mServerStatusText = R.string.auth_incorrect_path_title;
 965             break;
 966         case OAUTH2_ERROR:
 967             mServerStatusText = R.string.auth_oauth_error;
 968             break;
 969         case OAUTH2_ERROR_ACCESS_DENIED:
 970             mServerStatusText = R.string.auth_oauth_error_access_denied;
 971             break;
 972         case UNHANDLED_HTTP_CODE:
 973         case UNKNOWN_ERROR:
 974             mServerStatusText = R.string.auth_unknown_error_title;
 975             break;
 976         default:
 977             mServerStatusText = 0;
 978             mServerStatusIcon = 0;
 979         }
 980     }
 981
 982
 983     /**
 984      * Chooses the right icon and text to show to the user for the received operation result.
 985      *
 986      * @param result    Result of a remote operation performed in this activity
 987      */
 988     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 989         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 990
 991         switch (result.getCode()) {
 992         case OK_SSL:
 993             mAuthStatusIcon = android.R.drawable.ic_secure;
 994             mAuthStatusText = R.string.auth_secure_connection;
 995             break;
 996
 997         case OK_NO_SSL:
 998         case OK:
 999             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1000                 mAuthStatusText = R.string.auth_connection_established;
1001                 mAuthStatusIcon = R.drawable.ic_ok;
1002             } else {
1003                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1004                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1005             }
1006             break;
1007
1008         case NO_NETWORK_CONNECTION:
1009             mAuthStatusIcon = R.drawable.no_network;
1010             mAuthStatusText = R.string.auth_no_net_conn_title;
1011             break;
1012
1013         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1014             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1015             break;
1016         case BAD_OC_VERSION:
1017             mAuthStatusText = R.string.auth_bad_oc_version_title;
1018             break;
1019         case WRONG_CONNECTION:
1020             mAuthStatusText = R.string.auth_wrong_connection_title;
1021             break;
1022         case TIMEOUT:
1023             mAuthStatusText = R.string.auth_timeout_title;
1024             break;
1025         case INCORRECT_ADDRESS:
1026             mAuthStatusText = R.string.auth_incorrect_address_title;
1027             break;
1028         case SSL_ERROR:
1029             mAuthStatusText = R.string.auth_ssl_general_error_title;
1030             break;
1031         case UNAUTHORIZED:
1032             mAuthStatusText = R.string.auth_unauthorized;
1033             break;
1034         case HOST_NOT_AVAILABLE:
1035             mAuthStatusText = R.string.auth_unknown_host_title;
1036             break;
1037         case INSTANCE_NOT_CONFIGURED:
1038             mAuthStatusText = R.string.auth_not_configured_title;
1039             break;
1040         case FILE_NOT_FOUND:
1041             mAuthStatusText = R.string.auth_incorrect_path_title;
1042             break;
1043         case OAUTH2_ERROR:
1044             mAuthStatusText = R.string.auth_oauth_error;
1045             break;
1046         case OAUTH2_ERROR_ACCESS_DENIED:
1047             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1048             break;
1049         case ACCOUNT_NOT_NEW:
1050             mAuthStatusText = R.string.auth_account_not_new;
1051             break;
1052         case ACCOUNT_NOT_THE_SAME:
1053             mAuthStatusText = R.string.auth_account_not_the_same;
1054             break;
1055         case UNHANDLED_HTTP_CODE:
1056         case UNKNOWN_ERROR:
1057             mAuthStatusText = R.string.auth_unknown_error_title;
1058             break;
1059         default:
1060             mAuthStatusText = 0;
1061             mAuthStatusIcon = 0;
1062         }
1063     }
1064
1065
1066     /**
1067      * Processes the result of the request for and access token send
1068      * to an OAuth authorization server.
1069      *
1070      * @param operation     Operation performed requesting the access token.
1071      * @param result        Result of the operation.
1072      */
1073     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1074         try {
1075             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1076         } catch (IllegalArgumentException e) {
1077             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1078         }
1079
1080         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1081         if (result.isSuccess() && webdav_path != null) {
1082             /// be gentle with the user
1083             showDialog(DIALOG_LOGIN_PROGRESS);
1084
1085             /// time to test the retrieved access token on the ownCloud server
1086             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1087             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1088             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1089             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1090             client.setBearerCredentials(mAuthToken);
1091             mAuthCheckOperation.execute(client, this, mHandler);
1092
1093         } else {
1094             updateAuthStatusIconAndText(result);
1095             showAuthStatus();
1096             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1097         }
1098     }
1099
1100
1101     /**
1102      * Processes the result of the access check performed to try the user credentials.
1103      *
1104      * Creates a new account through the AccountManager.
1105      *
1106      * @param operation     Access check performed.
1107      * @param result        Result of the operation.
1108      */
1109     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1110         try {
1111             dismissDialog(DIALOG_LOGIN_PROGRESS);
1112         } catch (IllegalArgumentException e) {
1113             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1114         }
1115
1116         if (result.isSuccess()) {
1117             Log_OC.d(TAG, "Successful access - time to save the account");
1118
1119             boolean success = false;
1120             if (mAction == ACTION_CREATE) {
1121                 success = createAccount();
1122
1123             } else {
1124                 success = updateToken();
1125             }
1126
1127             if (success) {
1128                 finish();
1129             }
1130
1131         } else if (result.isServerFail() || result.isException()) {
1132             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1133             mServerIsChecked = true;
1134             mServerIsValid = false;
1135             mIsSslConn = false;
1136             mOcServerChkOperation = null;
1137             mDiscoveredVersion = null;
1138             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1139
1140             // update status icon and text
1141             updateServerStatusIconAndText(result);
1142             showServerStatus();
1143             mAuthStatusIcon = 0;
1144             mAuthStatusText = 0;
1145             showAuthStatus();
1146
1147             // update input controls state
1148             showRefreshButton();
1149             mOkButton.setEnabled(false);
1150
1151             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1152             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1153                 mLastSslUntrustedServerResult = result;
1154                 showDialog(DIALOG_SSL_VALIDATOR);
1155             }
1156
1157         } else {    // authorization fail due to client side - probably wrong credentials
1158             updateAuthStatusIconAndText(result);
1159             showAuthStatus();
1160             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1161         }
1162
1163     }
1164
1165
1166     /**
1167      * Sets the proper response to get that the Account Authenticator that started this activity saves
1168      * a new authorization token for mAccount.
1169      */
1170     private boolean updateToken() {
1171         Bundle response = new Bundle();
1172         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1173         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1174
1175         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1176             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1177             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1178             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1179
1180         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1181             String username = getUserNameForSamlSso();
1182             if (!mUsernameInput.getText().toString().equals(username)) {
1183                 // fail - not a new account, but an existing one; disallow
1184                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1185                 updateAuthStatusIconAndText(result);
1186                 showAuthStatus();
1187                 Log_OC.d(TAG, result.getLogMessage());
1188
1189                 return false;
1190             }
1191
1192             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1193             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1194             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1195
1196         } else {
1197             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1198             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1199         }
1200         setAccountAuthenticatorResult(response);
1201
1202         return true;
1203     }
1204
1205
1206     /**
1207      * Creates a new account through the Account Authenticator that started this activity.
1208      *
1209      * This makes the account permanent.
1210      *
1211      * TODO Decide how to name the OAuth accounts
1212      */
1213     private boolean createAccount() {
1214         /// create and save new ownCloud account
1215         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1216         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1217
1218         Uri uri = Uri.parse(mHostBaseUrl);
1219         String username = mUsernameInput.getText().toString().trim();
1220         if (isSaml) {
1221             username = getUserNameForSamlSso();
1222
1223         } else if (isOAuth) {
1224             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1225         }
1226         String accountName = username + "@" + uri.getHost();
1227         if (uri.getPort() >= 0) {
1228             accountName += ":" + uri.getPort();
1229         }
1230         mAccount = new Account(accountName, MainApp.getAccountType());
1231         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1232             // fail - not a new account, but an existing one; disallow
1233             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1234             updateAuthStatusIconAndText(result);
1235             showAuthStatus();
1236             Log_OC.d(TAG, result.getLogMessage());
1237             return false;
1238
1239         } else {
1240
1241             if (isOAuth || isSaml) {
1242                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1243             } else {
1244                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1245             }
1246
1247             /// add the new account as default in preferences, if there is none already
1248             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1249             if (defaultAccount == null) {
1250                 SharedPreferences.Editor editor = PreferenceManager
1251                         .getDefaultSharedPreferences(this).edit();
1252                 editor.putString("select_oc_account", accountName);
1253                 editor.commit();
1254             }
1255
1256             /// prepare result to return to the Authenticator
1257             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1258             final Intent intent = new Intent();
1259             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1260             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1261             /*if (!isOAuth)
1262                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1263             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1264             if (isOAuth || isSaml) {
1265                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1266             }
1267             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1268             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1269             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1270             if (isSaml) {
1271                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1272             } else if (isOAuth) {
1273                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1274             }
1275
1276             setAccountAuthenticatorResult(intent.getExtras());
1277             setResult(RESULT_OK, intent);
1278
1279             return true;
1280         }
1281     }
1282
1283
1284     private String getUserNameForSamlSso() {
1285         if (mAuthToken != null) {
1286             String [] cookies = mAuthToken.split(";");
1287             for (int i=0; i<cookies.length; i++) {
1288                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1289                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1290                     return value;
1291                 }
1292             }
1293         }
1294         return "";
1295     }
1296
1297
1298     /**
1299      * {@inheritDoc}
1300      *
1301      * Necessary to update the contents of the SSL Dialog
1302      *
1303      * TODO move to some common place for all possible untrusted SSL failures
1304      */
1305     @Override
1306     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1307         switch (id) {
1308         case DIALOG_LOGIN_PROGRESS:
1309         case DIALOG_CERT_NOT_SAVED:
1310         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1311             break;
1312         case DIALOG_SSL_VALIDATOR: {
1313             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1314             break;
1315         }
1316         default:
1317             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1318         }
1319     }
1320
1321
1322     /**
1323      * {@inheritDoc}
1324      */
1325     @Override
1326     protected Dialog onCreateDialog(int id) {
1327         Dialog dialog = null;
1328         switch (id) {
1329         case DIALOG_LOGIN_PROGRESS: {
1330             /// simple progress dialog
1331             ProgressDialog working_dialog = new ProgressDialog(this);
1332             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1333             working_dialog.setIndeterminate(true);
1334             working_dialog.setCancelable(true);
1335             working_dialog
1336             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1337                 @Override
1338                 public void onCancel(DialogInterface dialog) {
1339                     /// TODO study if this is enough
1340                     Log_OC.i(TAG, "Login canceled");
1341                     if (mOperationThread != null) {
1342                         mOperationThread.interrupt();
1343                         finish();
1344                     }
1345                 }
1346             });
1347             dialog = working_dialog;
1348             break;
1349         }
1350         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1351             ProgressDialog working_dialog = new ProgressDialog(this);
1352             working_dialog.setMessage(String.format("Getting authorization"));
1353             working_dialog.setIndeterminate(true);
1354             working_dialog.setCancelable(true);
1355             working_dialog
1356             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1357                 @Override
1358                 public void onCancel(DialogInterface dialog) {
1359                     Log_OC.i(TAG, "Login canceled");
1360                     finish();
1361                 }
1362             });
1363             dialog = working_dialog;
1364             break;
1365         }
1366         case DIALOG_SSL_VALIDATOR: {
1367             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1368             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1369             break;
1370         }
1371         case DIALOG_CERT_NOT_SAVED: {
1372             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1373             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1374             builder.setCancelable(false);
1375             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1376                 @Override
1377                 public void onClick(DialogInterface dialog, int which) {
1378                     dialog.dismiss();
1379                 };
1380             });
1381             dialog = builder.create();
1382             break;
1383         }
1384         default:
1385             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1386         }
1387         return dialog;
1388     }
1389
1390
1391     /**
1392      * Starts and activity to open the 'new account' page in the ownCloud web site
1393      *
1394      * @param view      'Account register' button
1395      */
1396     public void onRegisterClick(View view) {
1397         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1398         setResult(RESULT_CANCELED);
1399         startActivity(register);
1400     }
1401
1402
1403     /**
1404      * Updates the content and visibility state of the icon and text associated
1405      * to the last check on the ownCloud server.
1406      */
1407     private void showServerStatus() {
1408         TextView tv = (TextView) findViewById(R.id.server_status_text);
1409
1410         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1411             tv.setVisibility(View.INVISIBLE);
1412
1413         } else {
1414             tv.setText(mServerStatusText);
1415             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1416             tv.setVisibility(View.VISIBLE);
1417         }
1418
1419     }
1420
1421
1422     /**
1423      * Updates the content and visibility state of the icon and text associated
1424      * to the interactions with the OAuth authorization server.
1425      */
1426     private void showAuthStatus() {
1427         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1428             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1429
1430         } else {
1431             mAuthStatusLayout.setText(mAuthStatusText);
1432             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1433             mAuthStatusLayout.setVisibility(View.VISIBLE);
1434         }
1435     }
1436
1437
1438     private void showRefreshButton() {
1439         mRefreshButton.setVisibility(View.VISIBLE);
1440     }
1441
1442     private void hideRefreshButton() {
1443         mRefreshButton.setVisibility(View.GONE);
1444     }
1445
1446     /**
1447      * Called when the refresh button in the input field for ownCloud host is clicked.
1448      *
1449      * Performs a new check on the URL in the input field.
1450      *
1451      * @param view      Refresh 'button'
1452      */
1453     public void onRefreshClick(View view) {
1454         checkOcServer();
1455     }
1456
1457
1458     /**
1459      * Called when the eye icon in the password field is clicked.
1460      *
1461      * Toggles the visibility of the password in the field.
1462      */
1463     public void onViewPasswordClick() {
1464         int selectionStart = mPasswordInput.getSelectionStart();
1465         int selectionEnd = mPasswordInput.getSelectionEnd();
1466         if (isPasswordVisible()) {
1467             hidePassword();
1468         } else {
1469             showPassword();
1470         }
1471         mPasswordInput.setSelection(selectionStart, selectionEnd);
1472     }
1473
1474
1475     /**
1476      * Called when the checkbox for OAuth authorization is clicked.
1477      *
1478      * Hides or shows the input fields for user & password.
1479      *
1480      * @param view      'View password' 'button'
1481      */
1482     public void onCheckClick(View view) {
1483         CheckBox oAuth2Check = (CheckBox)view;
1484         if (oAuth2Check.isChecked()) {
1485             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1486         } else {
1487             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1488         }
1489         adaptViewAccordingToAuthenticationMethod();
1490     }
1491
1492
1493     /**
1494      * Changes the visibility of input elements depending on
1495      * the current authorization method.
1496      */
1497     private void adaptViewAccordingToAuthenticationMethod () {
1498         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1499             // OAuth 2 authorization
1500             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1501             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1502             mUsernameInput.setVisibility(View.GONE);
1503             mPasswordInput.setVisibility(View.GONE);
1504
1505         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1506             // SAML-based web Single Sign On
1507             mOAuthAuthEndpointText.setVisibility(View.GONE);
1508             mOAuthTokenEndpointText.setVisibility(View.GONE);
1509             mUsernameInput.setVisibility(View.GONE);
1510             mPasswordInput.setVisibility(View.GONE);
1511         } else {
1512             // basic HTTP authorization
1513             mOAuthAuthEndpointText.setVisibility(View.GONE);
1514             mOAuthTokenEndpointText.setVisibility(View.GONE);
1515             mUsernameInput.setVisibility(View.VISIBLE);
1516             mPasswordInput.setVisibility(View.VISIBLE);
1517         }
1518     }
1519
1520     /**
1521      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1522      */
1523     public void onSavedCertificate() {
1524         checkOcServer();
1525     }
1526
1527     /**
1528      * Called from SslValidatorDialog when a new server certificate could not be saved
1529      * when the user requested it.
1530      */
1531     @Override
1532     public void onFailedSavingCertificate() {
1533         showDialog(DIALOG_CERT_NOT_SAVED);
1534     }
1535
1536
1537     /**
1538      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1539      *
1540      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1541      *  or to throw the server test when the only field on screen is the URL input field.
1542      */
1543     @Override
1544     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1545         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1546             if (mOkButton.isEnabled()) {
1547                 mOkButton.performClick();
1548             }
1549
1550         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1551             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1552                 checkOcServer();
1553             }
1554         }
1555         return false;   // always return false to grant that the software keyboard is hidden anyway
1556     }
1557
1558
1559     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1560
1561         private int fuzz = 75;
1562
1563         /**
1564          * {@inheritDoc}
1565          */
1566         @Override
1567         public boolean onTouch(View view, MotionEvent event) {
1568             Drawable rightDrawable = null;
1569             if (view instanceof TextView) {
1570                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1571                 if (drawables.length > 2) {
1572                     rightDrawable = drawables[2];
1573                 }
1574             }
1575             if (rightDrawable != null) {
1576                 final int x = (int) event.getX();
1577                 final int y = (int) event.getY();
1578                 final Rect bounds = rightDrawable.getBounds();
1579                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1580                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1581
1582                     return onDrawableTouch(event);
1583                 }
1584             }
1585             return false;
1586         }
1587
1588         public abstract boolean onDrawableTouch(final MotionEvent event);
1589     }
1590
1591
1592     public void onSamlDialogSuccess(String sessionCookie){
1593         mAuthToken = sessionCookie;
1594
1595         if (sessionCookie != null && sessionCookie.length() > 0) {
1596             mAuthToken = sessionCookie;
1597             boolean success = false;
1598             if (mAction == ACTION_CREATE) {
1599                 success = createAccount();
1600
1601             } else {
1602                 success = updateToken();
1603             }
1604             if (success) {
1605                 finish();
1606             }
1607         }
1608
1609
1610     }
1611
1612
1613     @Override
1614     public void onSsoFinished(String sessionCookies) {
1615         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1616
1617         if (sessionCookies != null && sessionCookies.length() > 0) {
1618             Log_OC.d(TAG, "Successful SSO - time to save the account");
1619             onSamlDialogSuccess(sessionCookies);
1620             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1621             if (fd != null && fd instanceof SherlockDialogFragment) {
1622                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1623                 if (d != null && d.isShowing()) {
1624                     d.dismiss();
1625                 }
1626             }
1627
1628         } else {
1629             // TODO - show fail
1630             Log_OC.d(TAG, "SSO failed");
1631         }
1632
1633     }
1634
1635     /** Show auth_message
1636      *
1637      * @param message
1638      */
1639     private void showAuthMessage(String message) {
1640        mAuthMessage.setVisibility(View.VISIBLE);
1641        mAuthMessage.setText(message);
1642     }
1643
1644     private void hideAuthMessage() {
1645         mAuthMessage.setVisibility(View.GONE);
1646     }
1647
1648     @Override
1649     public boolean onTouchEvent(MotionEvent event) {
1650         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1651                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1652             checkOcServer();
1653         }
1654         return super.onTouchEvent(event);
1655     }
1656 }