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