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