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