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             String url = result.getRedirectedLocation();
 772             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 773
 774             // Show dialog
 775             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 776             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 777
 778             mAuthStatusIcon = 0;
 779             mAuthStatusText = 0;
 780
 781         } else {
 782             mAuthStatusIcon = R.drawable.common_error;
 783             mAuthStatusText = R.string.auth_unsupported_auth_method;
 784
 785         }
 786         showAuthStatus();
 787     }
 788
 789
 790     /**
 791      * Processes the result of the server check performed when the user finishes the enter of the
 792      * server URL.
 793      *
 794      * @param operation     Server check performed.
 795      * @param result        Result of the check.
 796      */
 797     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 798         if (operation.equals(mOcServerChkOperation)) {
 799             /// save result state
 800             mServerIsChecked = true;
 801             mServerIsValid = result.isSuccess();
 802             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 803             mOcServerChkOperation = null;
 804
 805             /// update status icon and text
 806             if (mServerIsValid) {
 807                 hideRefreshButton();
 808             } else {
 809                 showRefreshButton();
 810             }
 811             updateServerStatusIconAndText(result);
 812             showServerStatus();
 813
 814             /// very special case (TODO: move to a common place for all the remote operations)
 815             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 816                 mLastSslUntrustedServerResult = result;
 817                 showDialog(DIALOG_SSL_VALIDATOR);
 818             }
 819
 820             /// retrieve discovered version and normalize server URL
 821             mDiscoveredVersion = operation.getDiscoveredVersion();
 822             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 823
 824             /// allow or not the user try to access the server
 825             mOkButton.setEnabled(mServerIsValid);
 826
 827         }   // else nothing ; only the last check operation is considered;
 828         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 829     }
 830
 831
 832     private String normalizeUrl(String url) {
 833         if (url != null && url.length() > 0) {
 834             url = url.trim();
 835             if (!url.toLowerCase().startsWith("http://") &&
 836                     !url.toLowerCase().startsWith("https://")) {
 837                 if (mIsSslConn) {
 838                     url = "https://" + url;
 839                 } else {
 840                     url = "http://" + url;
 841                 }
 842             }
 843
 844             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 845             url = trimUrlWebdav(url);
 846
 847             if (url.endsWith("/")) {
 848                 url = url.substring(0, url.length() - 1);
 849             }
 850
 851         }
 852         return (url != null ? url : "");
 853     }
 854
 855
 856     private String trimUrlWebdav(String url){
 857         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 858             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 859         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 860             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 861         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 862             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 863         }
 864         return (url != null ? url : "");
 865     }
 866
 867
 868     /**
 869      * Chooses the right icon and text to show to the user for the received operation result.
 870      *
 871      * @param result    Result of a remote operation performed in this activity
 872      */
 873     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 874         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 875
 876         switch (result.getCode()) {
 877         case OK_SSL:
 878             mServerStatusIcon = android.R.drawable.ic_secure;
 879             mServerStatusText = R.string.auth_secure_connection;
 880             break;
 881
 882         case OK_NO_SSL:
 883         case OK:
 884             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 885                 mServerStatusText = R.string.auth_connection_established;
 886                 mServerStatusIcon = R.drawable.ic_ok;
 887             } else {
 888                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 889                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 890             }
 891             break;
 892
 893         case NO_NETWORK_CONNECTION:
 894             mServerStatusIcon = R.drawable.no_network;
 895             mServerStatusText = R.string.auth_no_net_conn_title;
 896             break;
 897
 898         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 899             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 900             break;
 901         case BAD_OC_VERSION:
 902             mServerStatusText = R.string.auth_bad_oc_version_title;
 903             break;
 904         case WRONG_CONNECTION:
 905             mServerStatusText = R.string.auth_wrong_connection_title;
 906             break;
 907         case TIMEOUT:
 908             mServerStatusText = R.string.auth_timeout_title;
 909             break;
 910         case INCORRECT_ADDRESS:
 911             mServerStatusText = R.string.auth_incorrect_address_title;
 912             break;
 913         case SSL_ERROR:
 914             mServerStatusText = R.string.auth_ssl_general_error_title;
 915             break;
 916         case UNAUTHORIZED:
 917             mServerStatusText = R.string.auth_unauthorized;
 918             break;
 919         case HOST_NOT_AVAILABLE:
 920             mServerStatusText = R.string.auth_unknown_host_title;
 921             break;
 922         case INSTANCE_NOT_CONFIGURED:
 923             mServerStatusText = R.string.auth_not_configured_title;
 924             break;
 925         case FILE_NOT_FOUND:
 926             mServerStatusText = R.string.auth_incorrect_path_title;
 927             break;
 928         case OAUTH2_ERROR:
 929             mServerStatusText = R.string.auth_oauth_error;
 930             break;
 931         case OAUTH2_ERROR_ACCESS_DENIED:
 932             mServerStatusText = R.string.auth_oauth_error_access_denied;
 933             break;
 934         case UNHANDLED_HTTP_CODE:
 935         case UNKNOWN_ERROR:
 936             mServerStatusText = R.string.auth_unknown_error_title;
 937             break;
 938         default:
 939             mServerStatusText = 0;
 940             mServerStatusIcon = 0;
 941         }
 942     }
 943
 944
 945     /**
 946      * Chooses the right icon and text to show to the user for the received operation result.
 947      *
 948      * @param result    Result of a remote operation performed in this activity
 949      */
 950     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 951         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 952
 953         switch (result.getCode()) {
 954         case OK_SSL:
 955             mAuthStatusIcon = android.R.drawable.ic_secure;
 956             mAuthStatusText = R.string.auth_secure_connection;
 957             break;
 958
 959         case OK_NO_SSL:
 960         case OK:
 961             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 962                 mAuthStatusText = R.string.auth_connection_established;
 963                 mAuthStatusIcon = R.drawable.ic_ok;
 964             } else {
 965                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
 966                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
 967             }
 968             break;
 969
 970         case NO_NETWORK_CONNECTION:
 971             mAuthStatusIcon = R.drawable.no_network;
 972             mAuthStatusText = R.string.auth_no_net_conn_title;
 973             break;
 974
 975         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 976             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
 977             break;
 978         case BAD_OC_VERSION:
 979             mAuthStatusText = R.string.auth_bad_oc_version_title;
 980             break;
 981         case WRONG_CONNECTION:
 982             mAuthStatusText = R.string.auth_wrong_connection_title;
 983             break;
 984         case TIMEOUT:
 985             mAuthStatusText = R.string.auth_timeout_title;
 986             break;
 987         case INCORRECT_ADDRESS:
 988             mAuthStatusText = R.string.auth_incorrect_address_title;
 989             break;
 990         case SSL_ERROR:
 991             mAuthStatusText = R.string.auth_ssl_general_error_title;
 992             break;
 993         case UNAUTHORIZED:
 994             mAuthStatusText = R.string.auth_unauthorized;
 995             break;
 996         case HOST_NOT_AVAILABLE:
 997             mAuthStatusText = R.string.auth_unknown_host_title;
 998             break;
 999         case INSTANCE_NOT_CONFIGURED:
1000             mAuthStatusText = R.string.auth_not_configured_title;
1001             break;
1002         case FILE_NOT_FOUND:
1003             mAuthStatusText = R.string.auth_incorrect_path_title;
1004             break;
1005         case OAUTH2_ERROR:
1006             mAuthStatusText = R.string.auth_oauth_error;
1007             break;
1008         case OAUTH2_ERROR_ACCESS_DENIED:
1009             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1010             break;
1011         case ACCOUNT_NOT_NEW:
1012             mAuthStatusText = R.string.auth_account_not_new;
1013             break;
1014         case UNHANDLED_HTTP_CODE:
1015         case UNKNOWN_ERROR:
1016             mAuthStatusText = R.string.auth_unknown_error_title;
1017             break;
1018         default:
1019             mAuthStatusText = 0;
1020             mAuthStatusIcon = 0;
1021         }
1022     }
1023
1024
1025     /**
1026      * Processes the result of the request for and access token send
1027      * to an OAuth authorization server.
1028      *
1029      * @param operation     Operation performed requesting the access token.
1030      * @param result        Result of the operation.
1031      */
1032     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1033         try {
1034             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1035         } catch (IllegalArgumentException e) {
1036             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1037         }
1038
1039         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1040         if (result.isSuccess() && webdav_path != null) {
1041             /// be gentle with the user
1042             showDialog(DIALOG_LOGIN_PROGRESS);
1043
1044             /// time to test the retrieved access token on the ownCloud server
1045             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1046             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1047             mAuthCheckOperation = new ExistenceCheckOperation("", this, false);
1048             WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1049             client.setBearerCredentials(mAuthToken);
1050             mAuthCheckOperation.execute(client, this, mHandler);
1051
1052         } else {
1053             updateAuthStatusIconAndText(result);
1054             showAuthStatus();
1055             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1056         }
1057     }
1058
1059
1060     /**
1061      * Processes the result of the access check performed to try the user credentials.
1062      *
1063      * Creates a new account through the AccountManager.
1064      *
1065      * @param operation     Access check performed.
1066      * @param result        Result of the operation.
1067      */
1068     private void onAuthorizationCheckFinish(ExistenceCheckOperation operation, RemoteOperationResult result) {
1069         try {
1070             dismissDialog(DIALOG_LOGIN_PROGRESS);
1071         } catch (IllegalArgumentException e) {
1072             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1073         }
1074
1075         if (result.isSuccess()) {
1076             Log_OC.d(TAG, "Successful access - time to save the account");
1077
1078             boolean success = true;
1079             if (mAction == ACTION_CREATE) {
1080                 success = createAccount();
1081
1082             } else {
1083                 updateToken();
1084             }
1085
1086             if (success) {
1087                 finish();
1088             }
1089
1090         } else if (result.isServerFail() || result.isException()) {
1091             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1092             mServerIsChecked = true;
1093             mServerIsValid = false;
1094             mIsSslConn = false;
1095             mOcServerChkOperation = null;
1096             mDiscoveredVersion = null;
1097             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1098
1099             // update status icon and text
1100             updateServerStatusIconAndText(result);
1101             showServerStatus();
1102             mAuthStatusIcon = 0;
1103             mAuthStatusText = 0;
1104             showAuthStatus();
1105
1106             // update input controls state
1107             showRefreshButton();
1108             mOkButton.setEnabled(false);
1109
1110             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1111             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1112                 mLastSslUntrustedServerResult = result;
1113                 showDialog(DIALOG_SSL_VALIDATOR);
1114             }
1115
1116         } else {    // authorization fail due to client side - probably wrong credentials
1117             updateAuthStatusIconAndText(result);
1118             showAuthStatus();
1119             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1120         }
1121
1122     }
1123
1124
1125     /**
1126      * Sets the proper response to get that the Account Authenticator that started this activity saves
1127      * a new authorization token for mAccount.
1128      */
1129     private void updateToken() {
1130         Bundle response = new Bundle();
1131         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1132         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1133
1134         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1135             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1136             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1137             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1138
1139         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1140             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1141             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1142             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1143
1144         } else {
1145             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1146             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1147         }
1148         setAccountAuthenticatorResult(response);
1149     }
1150
1151
1152     /**
1153      * Creates a new account through the Account Authenticator that started this activity.
1154      *
1155      * This makes the account permanent.
1156      *
1157      * TODO Decide how to name the OAuth accounts
1158      */
1159     private boolean createAccount() {
1160         /// create and save new ownCloud account
1161         boolean isOAuth = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType);
1162         boolean isSaml =  AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType);
1163
1164         Uri uri = Uri.parse(mHostBaseUrl);
1165         String username = mUsernameInput.getText().toString().trim();
1166         if (isSaml) {
1167             username = getUserNameForSamlSso();
1168
1169         } else if (isOAuth) {
1170             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1171         }
1172         String accountName = username + "@" + uri.getHost();
1173         if (uri.getPort() >= 0) {
1174             accountName += ":" + uri.getPort();
1175         }
1176         mAccount = new Account(accountName, AccountAuthenticator.ACCOUNT_TYPE);
1177         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1178             // fail - not a new account, but an existing one; disallow
1179             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1180             updateAuthStatusIconAndText(result);
1181             showAuthStatus();
1182             Log_OC.d(TAG, result.getLogMessage());
1183             return false;
1184
1185
1186         } else {
1187
1188             if (isOAuth || isSaml) {
1189                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1190             } else {
1191                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1192             }
1193
1194             /// add the new account as default in preferences, if there is none already
1195             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1196             if (defaultAccount == null) {
1197                 SharedPreferences.Editor editor = PreferenceManager
1198                         .getDefaultSharedPreferences(this).edit();
1199                 editor.putString("select_oc_account", accountName);
1200                 editor.commit();
1201             }
1202
1203             /// prepare result to return to the Authenticator
1204             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1205             final Intent intent = new Intent();
1206             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    AccountAuthenticator.ACCOUNT_TYPE);
1207             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1208             /*if (!isOAuth)
1209                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   AccountAuthenticator.ACCOUNT_TYPE); */
1210             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1211             if (isOAuth || isSaml) {
1212                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1213             }
1214             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1215             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1216             mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_OC_BASE_URL,   mHostBaseUrl);
1217             if (isSaml) {
1218                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1219             } else if (isOAuth) {
1220                 mAccountMgr.setUserData(mAccount, AccountAuthenticator.KEY_SUPPORTS_OAUTH2, "TRUE");
1221             }
1222
1223             setAccountAuthenticatorResult(intent.getExtras());
1224             setResult(RESULT_OK, intent);
1225
1226             /// immediately request for the synchronization of the new account
1227             Bundle bundle = new Bundle();
1228             bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1229             ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1230             return true;
1231         }
1232     }
1233
1234
1235     private String getUserNameForSamlSso() {
1236         if (mAuthToken != null) {
1237             String [] cookies = mAuthToken.split(";");
1238             for (int i=0; i<cookies.length; i++) {
1239                 if (cookies[i].startsWith(KEY_OC_USERNAME_EQUALS )) {
1240                     String value = Uri.decode(cookies[i].substring(KEY_OC_USERNAME_EQUALS.length()));
1241                     return value;
1242                 }
1243             }
1244         }
1245         return "";
1246     }
1247
1248
1249     /**
1250      * {@inheritDoc}
1251      *
1252      * Necessary to update the contents of the SSL Dialog
1253      *
1254      * TODO move to some common place for all possible untrusted SSL failures
1255      */
1256     @Override
1257     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1258         switch (id) {
1259         case DIALOG_LOGIN_PROGRESS:
1260         case DIALOG_CERT_NOT_SAVED:
1261         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1262             break;
1263         case DIALOG_SSL_VALIDATOR: {
1264             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1265             break;
1266         }
1267         default:
1268             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1269         }
1270     }
1271
1272
1273     /**
1274      * {@inheritDoc}
1275      */
1276     @Override
1277     protected Dialog onCreateDialog(int id) {
1278         Dialog dialog = null;
1279         switch (id) {
1280         case DIALOG_LOGIN_PROGRESS: {
1281             /// simple progress dialog
1282             ProgressDialog working_dialog = new ProgressDialog(this);
1283             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1284             working_dialog.setIndeterminate(true);
1285             working_dialog.setCancelable(true);
1286             working_dialog
1287             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1288                 @Override
1289                 public void onCancel(DialogInterface dialog) {
1290                     /// TODO study if this is enough
1291                     Log_OC.i(TAG, "Login canceled");
1292                     if (mOperationThread != null) {
1293                         mOperationThread.interrupt();
1294                         finish();
1295                     }
1296                 }
1297             });
1298             dialog = working_dialog;
1299             break;
1300         }
1301         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1302             ProgressDialog working_dialog = new ProgressDialog(this);
1303             working_dialog.setMessage(String.format("Getting authorization"));
1304             working_dialog.setIndeterminate(true);
1305             working_dialog.setCancelable(true);
1306             working_dialog
1307             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1308                 @Override
1309                 public void onCancel(DialogInterface dialog) {
1310                     Log_OC.i(TAG, "Login canceled");
1311                     finish();
1312                 }
1313             });
1314             dialog = working_dialog;
1315             break;
1316         }
1317         case DIALOG_SSL_VALIDATOR: {
1318             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1319             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1320             break;
1321         }
1322         case DIALOG_CERT_NOT_SAVED: {
1323             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1324             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1325             builder.setCancelable(false);
1326             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1327                 @Override
1328                 public void onClick(DialogInterface dialog, int which) {
1329                     dialog.dismiss();
1330                 };
1331             });
1332             dialog = builder.create();
1333             break;
1334         }
1335         default:
1336             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1337         }
1338         return dialog;
1339     }
1340
1341
1342     /**
1343      * Starts and activity to open the 'new account' page in the ownCloud web site
1344      *
1345      * @param view      'Account register' button
1346      */
1347     public void onRegisterClick(View view) {
1348         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.url_account_register)));
1349         setResult(RESULT_CANCELED);
1350         startActivity(register);
1351     }
1352
1353
1354     /**
1355      * Updates the content and visibility state of the icon and text associated
1356      * to the last check on the ownCloud server.
1357      */
1358     private void showServerStatus() {
1359         TextView tv = (TextView) findViewById(R.id.server_status_text);
1360
1361         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1362             tv.setVisibility(View.INVISIBLE);
1363
1364         } else {
1365             tv.setText(mServerStatusText);
1366             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1367             tv.setVisibility(View.VISIBLE);
1368         }
1369
1370     }
1371
1372
1373     /**
1374      * Updates the content and visibility state of the icon and text associated
1375      * to the interactions with the OAuth authorization server.
1376      */
1377     private void showAuthStatus() {
1378         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1379             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1380
1381         } else {
1382             mAuthStatusLayout.setText(mAuthStatusText);
1383             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1384             mAuthStatusLayout.setVisibility(View.VISIBLE);
1385         }
1386     }
1387
1388
1389     private void showRefreshButton() {
1390         mRefreshButton.setVisibility(View.VISIBLE);
1391     }
1392
1393     private void hideRefreshButton() {
1394         mRefreshButton.setVisibility(View.GONE);
1395     }
1396
1397     /**
1398      * Called when the refresh button in the input field for ownCloud host is clicked.
1399      *
1400      * Performs a new check on the URL in the input field.
1401      *
1402      * @param view      Refresh 'button'
1403      */
1404     public void onRefreshClick(View view) {
1405         checkOcServer();
1406     }
1407
1408
1409     /**
1410      * Called when the eye icon in the password field is clicked.
1411      *
1412      * Toggles the visibility of the password in the field.
1413      */
1414     public void onViewPasswordClick() {
1415         int selectionStart = mPasswordInput.getSelectionStart();
1416         int selectionEnd = mPasswordInput.getSelectionEnd();
1417         if (isPasswordVisible()) {
1418             hidePassword();
1419         } else {
1420             showPassword();
1421         }
1422         mPasswordInput.setSelection(selectionStart, selectionEnd);
1423     }
1424
1425
1426     /**
1427      * Called when the checkbox for OAuth authorization is clicked.
1428      *
1429      * Hides or shows the input fields for user & password.
1430      *
1431      * @param view      'View password' 'button'
1432      */
1433     public void onCheckClick(View view) {
1434         CheckBox oAuth2Check = (CheckBox)view;
1435         if (oAuth2Check.isChecked()) {
1436             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN;
1437         } else {
1438             mAuthTokenType = AccountAuthenticator.AUTH_TOKEN_TYPE_PASSWORD;
1439         }
1440         adaptViewAccordingToAuthenticationMethod();
1441     }
1442
1443
1444     /**
1445      * Changes the visibility of input elements depending on
1446      * the current authorization method.
1447      */
1448     private void adaptViewAccordingToAuthenticationMethod () {
1449         if (AccountAuthenticator.AUTH_TOKEN_TYPE_ACCESS_TOKEN.equals(mAuthTokenType)) {
1450             // OAuth 2 authorization
1451             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1452             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1453             mUsernameInput.setVisibility(View.GONE);
1454             mPasswordInput.setVisibility(View.GONE);
1455
1456         } else if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1457             // SAML-based web Single Sign On
1458             mOAuthAuthEndpointText.setVisibility(View.GONE);
1459             mOAuthTokenEndpointText.setVisibility(View.GONE);
1460             mUsernameInput.setVisibility(View.GONE);
1461             mPasswordInput.setVisibility(View.GONE);
1462         } else {
1463             // basic HTTP authorization
1464             mOAuthAuthEndpointText.setVisibility(View.GONE);
1465             mOAuthTokenEndpointText.setVisibility(View.GONE);
1466             mUsernameInput.setVisibility(View.VISIBLE);
1467             mPasswordInput.setVisibility(View.VISIBLE);
1468         }
1469     }
1470
1471     /**
1472      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1473      */
1474     public void onSavedCertificate() {
1475         checkOcServer();
1476     }
1477
1478     /**
1479      * Called from SslValidatorDialog when a new server certificate could not be saved
1480      * when the user requested it.
1481      */
1482     @Override
1483     public void onFailedSavingCertificate() {
1484         showDialog(DIALOG_CERT_NOT_SAVED);
1485     }
1486
1487
1488     /**
1489      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1490      *
1491      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1492      *  or to throw the server test when the only field on screen is the URL input field.
1493      */
1494     @Override
1495     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1496         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1497             if (mOkButton.isEnabled()) {
1498                 mOkButton.performClick();
1499             }
1500
1501         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1502             if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType)) {
1503                 checkOcServer();
1504             }
1505         }
1506         return false;   // always return false to grant that the software keyboard is hidden anyway
1507     }
1508
1509
1510     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1511
1512         private int fuzz = 75;
1513
1514         /**
1515          * {@inheritDoc}
1516          */
1517         @Override
1518         public boolean onTouch(View view, MotionEvent event) {
1519             Drawable rightDrawable = null;
1520             if (view instanceof TextView) {
1521                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1522                 if (drawables.length > 2) {
1523                     rightDrawable = drawables[2];
1524                 }
1525             }
1526             if (rightDrawable != null) {
1527                 final int x = (int) event.getX();
1528                 final int y = (int) event.getY();
1529                 final Rect bounds = rightDrawable.getBounds();
1530                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1531                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1532
1533                     return onDrawableTouch(event);
1534                 }
1535             }
1536             return false;
1537         }
1538
1539         public abstract boolean onDrawableTouch(final MotionEvent event);
1540     }
1541
1542
1543     public void onSamlDialogSuccess(String sessionCookie){
1544         mAuthToken = sessionCookie;
1545
1546         if (sessionCookie != null && sessionCookie.length() > 0) {
1547             mAuthToken = sessionCookie;
1548             boolean success = true;
1549             if (mAction == ACTION_CREATE) {
1550                 success = createAccount();
1551
1552             } else {
1553                 updateToken();
1554             }
1555             if (success) {
1556                 finish();
1557             }
1558         }
1559
1560
1561     }
1562
1563
1564     @Override
1565     public void onSsoFinished(String sessionCookies) {
1566         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1567
1568         if (sessionCookies != null && sessionCookies.length() > 0) {
1569             Log_OC.d(TAG, "Successful SSO - time to save the account");
1570             onSamlDialogSuccess(sessionCookies);
1571             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1572             if (fd != null && fd instanceof SherlockDialogFragment) {
1573                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1574                 if (d != null && d.isShowing()) {
1575                     d.dismiss();
1576                 }
1577             }
1578
1579         } else {
1580             // TODO - show fail
1581             Log_OC.d(TAG, "SSO failed");
1582         }
1583
1584     }
1585
1586
1587     private void syncAccount(){
1588         /// immediately request for the synchronization of the new account
1589         Bundle bundle = new Bundle();
1590         bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
1591         ContentResolver.requestSync(mAccount, AccountAuthenticator.AUTHORITY, bundle);
1592     }
1593
1594     @Override
1595     public boolean onTouchEvent(MotionEvent event) {
1596         if (AccountAuthenticator.AUTH_TOKEN_TYPE_SAML_WEB_SSO_SESSION_COOKIE.equals(mAuthTokenType) &&
1597                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1598             checkOcServer();
1599         }
1600         return super.onTouchEvent(event);
1601     }
1602 }