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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.DialogInterface;
  27 import android.content.Intent;
  28 import android.content.SharedPreferences;
  29 import android.graphics.Rect;
  30 import android.graphics.drawable.Drawable;
  31 import android.net.Uri;
  32 import android.os.Bundle;
  33 import android.os.Handler;
  34 import android.preference.PreferenceManager;
  35 import android.support.v4.app.Fragment;
  36 import android.text.Editable;
  37 import android.text.InputType;
  38 import android.text.TextWatcher;
  39 import android.view.KeyEvent;
  40 import android.view.MotionEvent;
  41 import android.view.View;
  42 import android.view.View.OnFocusChangeListener;
  43 import android.view.View.OnTouchListener;
  44 import android.view.Window;
  45 import android.view.inputmethod.EditorInfo;
  46 import android.widget.Button;
  47 import android.widget.CheckBox;
  48 import android.widget.EditText;
  49 import android.widget.TextView;
  50 import android.widget.TextView.OnEditorActionListener;
  51
  52 import com.actionbarsherlock.app.SherlockDialogFragment;
  53 import com.owncloud.android.MainApp;
  54 import com.owncloud.android.R;
  55 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  56 import com.owncloud.android.oc_framework.accounts.AccountTypeUtils;
  57 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  58 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  59 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  62 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  63 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  64 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  65 import com.owncloud.android.oc_framework.operations.remote.ExistenceCheckRemoteOperation;
  66 import com.owncloud.android.oc_framework.operations.remote.GetUserNameRemoteOperation;
  67 import com.owncloud.android.oc_framework.operations.remote.OwnCloudServerCheckOperation;
  68 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  71 import com.owncloud.android.utils.Log_OC;
  72 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  73
  74 /**
  75  * This Activity is used to add an ownCloud account to the App
  76  *
  77  * @author Bartek Przybylski
  78  * @author David A. Velasco
  79  */
  80 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  81 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  82
  83     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  84
  85     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  86     public static final String EXTRA_USER_NAME = "USER_NAME";
  87     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  88     public static final String EXTRA_ACTION = "ACTION";
  89     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  90
  91     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  92     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  93     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  94     private static final String KEY_OC_VERSION = "OC_VERSION";
  95     private static final String KEY_ACCOUNT = "ACCOUNT";
  96     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  97     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  98     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  99     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 100     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 101     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 102     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 103     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 104     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 105     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 106     private static final String KEY_IS_SHARED_SUPPORTED = "KEY_IS_SHARE_SUPPORTED";
 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     private boolean mIsSharedSupported;
 125
 126     private String mAuthMessageText;
 127     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 128     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 129     private int mAuthStatusText, mAuthStatusIcon;
 130     private TextView mAuthStatusLayout;
 131
 132     private final Handler mHandler = new Handler();
 133     private Thread mOperationThread;
 134     private OwnCloudServerCheckOperation mOcServerChkOperation;
 135     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 136     private RemoteOperationResult mLastSslUntrustedServerResult;
 137
 138     private Uri mNewCapturedUriFromOAuth2Redirection;
 139
 140     private AccountManager mAccountMgr;
 141     private boolean mJustCreated;
 142     private byte mAction;
 143     private Account mAccount;
 144
 145     private TextView mAuthMessage;
 146
 147     private EditText mHostUrlInput;
 148     private boolean mHostUrlInputEnabled;
 149     private View mRefreshButton;
 150
 151     private String mAuthTokenType;
 152
 153     private EditText mUsernameInput;
 154     private EditText mPasswordInput;
 155
 156     private CheckBox mOAuth2Check;
 157
 158     private TextView mOAuthAuthEndpointText;
 159     private TextView mOAuthTokenEndpointText;
 160
 161     private SamlWebViewDialog mSamlDialog;
 162
 163     private View mOkButton;
 164
 165     private String mAuthToken;
 166
 167     private boolean mResumed; // Control if activity is resumed
 168
 169
 170     /**
 171      * {@inheritDoc}
 172      *
 173      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 174      */
 175     @Override
 176     protected void onCreate(Bundle savedInstanceState) {
 177         super.onCreate(savedInstanceState);
 178         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 179
 180         /// set view and get references to view elements
 181         setContentView(R.layout.account_setup);
 182         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 183         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 184         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 185         mUsernameInput = (EditText) findViewById(R.id.account_username);
 186         mPasswordInput = (EditText) findViewById(R.id.account_password);
 187         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 188         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 189         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 190         mOkButton = findViewById(R.id.buttonOK);
 191         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 192
 193         /// set Host Url Input Enabled
 194         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 195
 196         /// set visibility of link for new users
 197         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 198         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 199         if (welcomeLink != null) {
 200             if (accountRegisterVisibility) {
 201                 welcomeLink.setVisibility(View.VISIBLE);
 202                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 203             } else {
 204                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 205             }
 206         }
 207
 208         /// initialization
 209         mAccountMgr = AccountManager.get(this);
 210         mNewCapturedUriFromOAuth2Redirection = null;
 211         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 212         mAccount = null;
 213         mHostBaseUrl = "";
 214         boolean refreshButtonEnabled = false;
 215
 216         // URL input configuration applied
 217         if (!mHostUrlInputEnabled)
 218         {
 219             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 220             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 221
 222         } else {
 223             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 224         }
 225
 226         if (savedInstanceState == null) {
 227             mResumed = false;
 228             /// connection state and info
 229             mAuthMessageVisibility = View.GONE;
 230             mServerStatusText = mServerStatusIcon = 0;
 231             mServerIsValid = false;
 232             mServerIsChecked = false;
 233             mIsSslConn = false;
 234             mAuthStatusText = mAuthStatusIcon = 0;
 235             mIsSharedSupported = false;
 236
 237             /// retrieve extras from intent
 238             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 239             if (mAccount != null) {
 240                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 241                 if (ocVersion != null) {
 242                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 243                 }
 244                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 245                 mHostUrlInput.setText(mHostBaseUrl);
 246                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 247                 mUsernameInput.setText(userName);
 248                 mIsSharedSupported = Boolean.getBoolean(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SHARE_API));
 249
 250             }
 251             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 252             mJustCreated = true;
 253
 254             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 255                 checkOcServer();
 256             }
 257
 258         } else {
 259             mResumed = true;
 260             /// connection state and info
 261             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 262             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 263             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 264             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 265             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 266             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 267             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 268             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 269             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 270             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 271                 showPassword();
 272             }
 273
 274             /// server data
 275             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 276             mIsSharedSupported = savedInstanceState.getBoolean(KEY_IS_SHARED_SUPPORTED, false);
 277             if (ocVersion != null) {
 278                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 279             }
 280             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 281
 282             // account data, if updating
 283             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 284             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 285             if (mAuthTokenType == null) {
 286                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 287
 288             }
 289
 290             // check if server check was interrupted by a configuration change
 291             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 292                 checkOcServer();
 293             }
 294
 295             // refresh button enabled
 296             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 297
 298
 299         }
 300
 301         if (mAuthMessageVisibility== View.VISIBLE) {
 302             showAuthMessage(mAuthMessageText);
 303         }
 304         else {
 305             hideAuthMessage();
 306         }
 307         adaptViewAccordingToAuthenticationMethod();
 308         showServerStatus();
 309         showAuthStatus();
 310
 311         if (mAction == ACTION_UPDATE_TOKEN) {
 312             /// lock things that should not change
 313             mHostUrlInput.setEnabled(false);
 314             mHostUrlInput.setFocusable(false);
 315             mUsernameInput.setEnabled(false);
 316             mUsernameInput.setFocusable(false);
 317             mOAuth2Check.setVisibility(View.GONE);
 318         }
 319
 320         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 321         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 322         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 323
 324         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 325                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 326             mOAuth2Check.setVisibility(View.GONE);
 327         }
 328
 329         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 330
 331         /// bind view elements to listeners and other friends
 332         mHostUrlInput.setOnFocusChangeListener(this);
 333         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 334         mHostUrlInput.setOnEditorActionListener(this);
 335         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 336
 337             @Override
 338             public void afterTextChanged(Editable s) {
 339                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 340                     mOkButton.setEnabled(false);
 341                 }
 342             }
 343
 344             @Override
 345             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 346             }
 347
 348             @Override
 349             public void onTextChanged(CharSequence s, int start, int before, int count) {
 350                 if (!mResumed) {
 351                     mAuthStatusIcon = 0;
 352                     mAuthStatusText = 0;
 353                     showAuthStatus();
 354                 }
 355                 mResumed = false;
 356             }
 357         });
 358
 359         mPasswordInput.setOnFocusChangeListener(this);
 360         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 361         mPasswordInput.setOnEditorActionListener(this);
 362         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 363             @Override
 364             public boolean onDrawableTouch(final MotionEvent event) {
 365                 if (event.getAction() == MotionEvent.ACTION_UP) {
 366                     AuthenticatorActivity.this.onViewPasswordClick();
 367                 }
 368                 return true;
 369             }
 370         });
 371
 372         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 373             @Override
 374             public boolean onTouch(View view, MotionEvent event) {
 375                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 376                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 377                             mHostUrlInput.hasFocus()) {
 378                         checkOcServer();
 379                     }
 380                 }
 381                 return false;
 382             }
 383         });
 384     }
 385
 386
 387
 388     private void initAuthorizationMethod() {
 389         boolean oAuthRequired = false;
 390         boolean samlWebSsoRequired = false;
 391
 392         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 393         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 394
 395         // TODO could be a good moment to validate the received token type, if not null
 396
 397         if (mAuthTokenType == null) {
 398             if (mAccount != null) {
 399                 /// same authentication method than the one used to create the account to update
 400                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 401                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 402
 403             } else {
 404                 /// use the one set in setup.xml
 405                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 406                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 407             }
 408             if (oAuthRequired) {
 409                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 410             } else if (samlWebSsoRequired) {
 411                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 412             } else {
 413                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 414             }
 415         }
 416
 417         if (mAccount != null) {
 418             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 419             mUsernameInput.setText(userName);
 420         }
 421
 422         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 423
 424     }
 425
 426     /**
 427      * Saves relevant state before {@link #onPause()}
 428      *
 429      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 430      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 431      *
 432      * See {@link #loadSavedInstanceState(Bundle)}
 433      */
 434     @Override
 435     protected void onSaveInstanceState(Bundle outState) {
 436         super.onSaveInstanceState(outState);
 437
 438         /// connection state and info
 439         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 440         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 441         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 442         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 443         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 444         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 445         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 446         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 447         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 448         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 449         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 450
 451         /// server data
 452         if (mDiscoveredVersion != null) {
 453             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 454         }
 455         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 456         outState.putBoolean(KEY_IS_SHARED_SUPPORTED, mIsSharedSupported);
 457
 458         /// account data, if updating
 459         if (mAccount != null) {
 460             outState.putParcelable(KEY_ACCOUNT, mAccount);
 461         }
 462         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 463
 464         // refresh button enabled
 465         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 466
 467
 468     }
 469
 470
 471     /**
 472      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 473      * is caught here.
 474      *
 475      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 476      * AndroidManifest.xml file.
 477      */
 478     @Override
 479     protected void onNewIntent (Intent intent) {
 480         Log_OC.d(TAG, "onNewIntent()");
 481         Uri data = intent.getData();
 482         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 483             mNewCapturedUriFromOAuth2Redirection = data;
 484         }
 485     }
 486
 487
 488     /**
 489      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 490      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 491      */
 492     @Override
 493     protected void onResume() {
 494         super.onResume();
 495         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 496             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 497                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 498                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 499             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 500                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 501                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 502             } else {
 503                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 504                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 505             }
 506         }
 507
 508         if (mNewCapturedUriFromOAuth2Redirection != null) {
 509             getOAuth2AccessTokenFromCapturedRedirection();
 510         }
 511
 512         mJustCreated = false;
 513
 514     }
 515
 516
 517     /**
 518      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 519      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 520      */
 521     private void getOAuth2AccessTokenFromCapturedRedirection() {
 522         /// Parse data from OAuth redirection
 523         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 524         mNewCapturedUriFromOAuth2Redirection = null;
 525
 526         /// Showing the dialog with instructions for the user.
 527         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 528
 529         /// GET ACCESS TOKEN to the oAuth server
 530         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 531                 getString(R.string.oauth2_redirect_uri),
 532                 getString(R.string.oauth2_grant_type),
 533                 queryParameters);
 534         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 535         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 536         operation.execute(client, this, mHandler);
 537     }
 538
 539
 540
 541     /**
 542      * Handles the change of focus on the text inputs for the server URL and the password
 543      */
 544     public void onFocusChange(View view, boolean hasFocus) {
 545         if (view.getId() == R.id.hostUrlInput) {
 546             if (!hasFocus) {
 547                 onUrlInputFocusLost((TextView) view);
 548             }
 549             else {
 550                 hideRefreshButton();
 551             }
 552
 553         } else if (view.getId() == R.id.account_password) {
 554             onPasswordFocusChanged((TextView) view, hasFocus);
 555         }
 556     }
 557
 558
 559     /**
 560      * Handles changes in focus on the text input for the server URL.
 561      *
 562      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 563      * other field. The operation to check the existence of the server in the entered URL is
 564      * started.
 565      *
 566      * When hasFocus:    user 'comes back' to write again the server URL.
 567      *
 568      * @param hostInput     TextView with the URL input field receiving the change of focus.
 569      */
 570     private void onUrlInputFocusLost(TextView hostInput) {
 571         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 572             checkOcServer();
 573         } else {
 574             mOkButton.setEnabled(mServerIsValid);
 575             if (!mServerIsValid) {
 576                 showRefreshButton();
 577             }
 578         }
 579     }
 580
 581
 582     private void checkOcServer() {
 583         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 584
 585         if (!mHostUrlInputEnabled){
 586             uri = getString(R.string.server_url);
 587         }
 588
 589         mServerIsValid = false;
 590         mServerIsChecked = false;
 591         mIsSharedSupported = false;
 592         mOkButton.setEnabled(false);
 593         mDiscoveredVersion = null;
 594         hideRefreshButton();
 595         if (uri.length() != 0) {
 596             mServerStatusText = R.string.auth_testing_connection;
 597             mServerStatusIcon = R.drawable.progress_small;
 598             showServerStatus();
 599             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 600             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 601             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 602         } else {
 603             mServerStatusText = 0;
 604             mServerStatusIcon = 0;
 605             showServerStatus();
 606         }
 607     }
 608
 609
 610     /**
 611      * Handles changes in focus on the text input for the password (basic authorization).
 612      *
 613      * When (hasFocus), the button to toggle password visibility is shown.
 614      *
 615      * When (!hasFocus), the button is made invisible and the password is hidden.
 616      *
 617      * @param passwordInput    TextView with the password input field receiving the change of focus.
 618      * @param hasFocus          'True' if focus is received, 'false' if is lost
 619      */
 620     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 621         if (hasFocus) {
 622             showViewPasswordButton();
 623         } else {
 624             hidePassword();
 625             hidePasswordButton();
 626         }
 627     }
 628
 629
 630     private void showViewPasswordButton() {
 631         //int drawable = android.R.drawable.ic_menu_view;
 632         int drawable = R.drawable.ic_view;
 633         if (isPasswordVisible()) {
 634             //drawable = android.R.drawable.ic_secure;
 635             drawable = R.drawable.ic_hide;
 636         }
 637         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 638     }
 639
 640     private boolean isPasswordVisible() {
 641         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 642     }
 643
 644     private void hidePasswordButton() {
 645         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 646     }
 647
 648     private void showPassword() {
 649         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 650         showViewPasswordButton();
 651     }
 652
 653     private void hidePassword() {
 654         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 655         showViewPasswordButton();
 656     }
 657
 658
 659     /**
 660      * Cancels the authenticator activity
 661      *
 662      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 663      *
 664      * This method is bound in the layout/acceoun_setup.xml resource file.
 665      *
 666      * @param view      Cancel button
 667      */
 668     public void onCancelClick(View view) {
 669         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 670         finish();
 671     }
 672
 673
 674
 675     /**
 676      * Checks the credentials of the user in the root of the ownCloud server
 677      * before creating a new local account.
 678      *
 679      * For basic authorization, a check of existence of the root folder is
 680      * performed.
 681      *
 682      * For OAuth, starts the flow to get an access token; the credentials test
 683      * is postponed until it is available.
 684      *
 685      * IMPORTANT ENTRY POINT 4
 686      *
 687      * @param view      OK button
 688      */
 689     public void onOkClick(View view) {
 690         // this check should be unnecessary
 691         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 692             mServerStatusIcon = R.drawable.common_error;
 693             mServerStatusText = R.string.auth_wtf_reenter_URL;
 694             showServerStatus();
 695             mOkButton.setEnabled(false);
 696             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 697             return;
 698         }
 699
 700         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 701             startOauthorization();
 702         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 703             startSamlBasedFederatedSingleSignOnAuthorization();
 704         } else {
 705             checkBasicAuthorization();
 706         }
 707     }
 708
 709
 710     /**
 711      * Tests the credentials entered by the user performing a check of existence on
 712      * the root folder of the ownCloud server.
 713      */
 714     private void checkBasicAuthorization() {
 715         /// get the path to the root folder through WebDAV from the version server
 716         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 717
 718         /// get basic credentials entered by user
 719         String username = mUsernameInput.getText().toString();
 720         String password = mPasswordInput.getText().toString();
 721
 722         /// be gentle with the user
 723         showDialog(DIALOG_LOGIN_PROGRESS);
 724
 725         /// test credentials accessing the root folder
 726         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 727         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 728         client.setBasicCredentials(username, password);
 729         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 730     }
 731
 732
 733     /**
 734      * Starts the OAuth 'grant type' flow to get an access token, with
 735      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 736      */
 737     private void startOauthorization() {
 738         // be gentle with the user
 739         mAuthStatusIcon = R.drawable.progress_small;
 740         mAuthStatusText = R.string.oauth_login_connection;
 741         showAuthStatus();
 742
 743
 744         // GET AUTHORIZATION request
 745         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 746         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 747         Uri.Builder uriBuilder = uri.buildUpon();
 748         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 749         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 750         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 751         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 752         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 753         uri = uriBuilder.build();
 754         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 755         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 756         startActivity(i);
 757     }
 758
 759
 760     /**
 761      * Starts the Web Single Sign On flow to get access to the root folder
 762      * in the server.
 763      */
 764     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 765         // be gentle with the user
 766         mAuthStatusIcon = R.drawable.progress_small;
 767         mAuthStatusText = R.string.auth_connecting_auth_server;
 768         showAuthStatus();
 769         showDialog(DIALOG_LOGIN_PROGRESS);
 770
 771         /// get the path to the root folder through WebDAV from the version server
 772         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 773
 774         /// test credentials accessing the root folder
 775         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 776         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 777         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 778
 779     }
 780
 781     /**
 782      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 783      *
 784      * Dispatches the operation flow to the right method.
 785      */
 786     @Override
 787     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 788
 789         if (operation instanceof OwnCloudServerCheckOperation) {
 790             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 791
 792         } else if (operation instanceof OAuth2GetAccessToken) {
 793             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 794
 795         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 796             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 797                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 798
 799             } else {
 800                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 801             }
 802         } else if (operation instanceof GetUserNameRemoteOperation) {
 803             onGetUserNameFinish((GetUserNameRemoteOperation) operation, result);
 804
 805         }
 806
 807     }
 808
 809     private void onGetUserNameFinish(GetUserNameRemoteOperation operation, RemoteOperationResult result) {
 810         if (result.isSuccess()) {
 811             boolean success = false;
 812             String username = operation.getUserName();
 813
 814             if ( mAction == ACTION_CREATE) {
 815                 mUsernameInput.setText(username);
 816                 success = createAccount();
 817             } else {
 818
 819                 if (!mUsernameInput.getText().toString().equals(username)) {
 820                     // fail - not a new account, but an existing one; disallow
 821                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 822                     updateAuthStatusIconAndText(result);
 823                     showAuthStatus();
 824                     Log_OC.d(TAG, result.getLogMessage());
 825                 } else {
 826                   updateToken();
 827                   success = true;
 828                 }
 829             }
 830
 831             if (success)
 832                 finish();
 833         }
 834
 835     }
 836
 837     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 838         try {
 839             dismissDialog(DIALOG_LOGIN_PROGRESS);
 840         } catch (IllegalArgumentException e) {
 841             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 842         }
 843
 844         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 845         if (result.isIdPRedirection()) {
 846             String url = result.getRedirectedLocation();
 847             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 848
 849             // Show dialog
 850             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 851             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 852
 853             mAuthStatusIcon = 0;
 854             mAuthStatusText = 0;
 855
 856         } else {
 857             mAuthStatusIcon = R.drawable.common_error;
 858             mAuthStatusText = R.string.auth_unsupported_auth_method;
 859
 860         }
 861         showAuthStatus();
 862     }
 863
 864
 865     /**
 866      * Processes the result of the server check performed when the user finishes the enter of the
 867      * server URL.
 868      *
 869      * @param operation     Server check performed.
 870      * @param result        Result of the check.
 871      */
 872     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 873         if (operation.equals(mOcServerChkOperation)) {
 874             /// save result state
 875             mServerIsChecked = true;
 876             mServerIsValid = result.isSuccess();
 877             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 878             mOcServerChkOperation = null;
 879
 880             /// update status icon and text
 881             if (mServerIsValid) {
 882                 hideRefreshButton();
 883             } else {
 884                 showRefreshButton();
 885             }
 886             updateServerStatusIconAndText(result);
 887             showServerStatus();
 888
 889             /// very special case (TODO: move to a common place for all the remote operations)
 890             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 891                 mLastSslUntrustedServerResult = result;
 892                 showDialog(DIALOG_SSL_VALIDATOR);
 893             }
 894
 895             /// retrieve discovered version and normalize server URL
 896             mDiscoveredVersion = operation.getDiscoveredVersion();
 897             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 898
 899             /// allow or not the user try to access the server
 900             mOkButton.setEnabled(mServerIsValid);
 901
 902             /// retrieve if is supported the Share API
 903             mIsSharedSupported = operation.isSharedSupported();
 904
 905         }   // else nothing ; only the last check operation is considered;
 906         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 907     }
 908
 909
 910     private String normalizeUrl(String url) {
 911         if (url != null && url.length() > 0) {
 912             url = url.trim();
 913             if (!url.toLowerCase().startsWith("http://") &&
 914                     !url.toLowerCase().startsWith("https://")) {
 915                 if (mIsSslConn) {
 916                     url = "https://" + url;
 917                 } else {
 918                     url = "http://" + url;
 919                 }
 920             }
 921
 922             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 923             url = trimUrlWebdav(url);
 924
 925             if (url.endsWith("/")) {
 926                 url = url.substring(0, url.length() - 1);
 927             }
 928
 929         }
 930         return (url != null ? url : "");
 931     }
 932
 933
 934     private String trimUrlWebdav(String url){
 935         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 936             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 937         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 938             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 939         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 940             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 941         }
 942         return (url != null ? url : "");
 943     }
 944
 945
 946     /**
 947      * Chooses the right icon and text to show to the user for the received operation result.
 948      *
 949      * @param result    Result of a remote operation performed in this activity
 950      */
 951     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 952         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 953
 954         switch (result.getCode()) {
 955         case OK_SSL:
 956             mServerStatusIcon = android.R.drawable.ic_secure;
 957             mServerStatusText = R.string.auth_secure_connection;
 958             break;
 959
 960         case OK_NO_SSL:
 961         case OK:
 962             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 963                 mServerStatusText = R.string.auth_connection_established;
 964                 mServerStatusIcon = R.drawable.ic_ok;
 965             } else {
 966                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 967                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 968             }
 969             break;
 970
 971         case NO_NETWORK_CONNECTION:
 972             mServerStatusIcon = R.drawable.no_network;
 973             mServerStatusText = R.string.auth_no_net_conn_title;
 974             break;
 975
 976         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 977             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 978             break;
 979         case BAD_OC_VERSION:
 980             mServerStatusText = R.string.auth_bad_oc_version_title;
 981             break;
 982         case WRONG_CONNECTION:
 983             mServerStatusText = R.string.auth_wrong_connection_title;
 984             break;
 985         case TIMEOUT:
 986             mServerStatusText = R.string.auth_timeout_title;
 987             break;
 988         case INCORRECT_ADDRESS:
 989             mServerStatusText = R.string.auth_incorrect_address_title;
 990             break;
 991         case SSL_ERROR:
 992             mServerStatusText = R.string.auth_ssl_general_error_title;
 993             break;
 994         case UNAUTHORIZED:
 995             mServerStatusText = R.string.auth_unauthorized;
 996             break;
 997         case HOST_NOT_AVAILABLE:
 998             mServerStatusText = R.string.auth_unknown_host_title;
 999             break;
1000         case INSTANCE_NOT_CONFIGURED:
1001             mServerStatusText = R.string.auth_not_configured_title;
1002             break;
1003         case FILE_NOT_FOUND:
1004             mServerStatusText = R.string.auth_incorrect_path_title;
1005             break;
1006         case OAUTH2_ERROR:
1007             mServerStatusText = R.string.auth_oauth_error;
1008             break;
1009         case OAUTH2_ERROR_ACCESS_DENIED:
1010             mServerStatusText = R.string.auth_oauth_error_access_denied;
1011             break;
1012         case UNHANDLED_HTTP_CODE:
1013         case UNKNOWN_ERROR:
1014             mServerStatusText = R.string.auth_unknown_error_title;
1015             break;
1016         default:
1017             mServerStatusText = 0;
1018             mServerStatusIcon = 0;
1019         }
1020     }
1021
1022
1023     /**
1024      * Chooses the right icon and text to show to the user for the received operation result.
1025      *
1026      * @param result    Result of a remote operation performed in this activity
1027      */
1028     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1029         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1030
1031         switch (result.getCode()) {
1032         case OK_SSL:
1033             mAuthStatusIcon = android.R.drawable.ic_secure;
1034             mAuthStatusText = R.string.auth_secure_connection;
1035             break;
1036
1037         case OK_NO_SSL:
1038         case OK:
1039             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1040                 mAuthStatusText = R.string.auth_connection_established;
1041                 mAuthStatusIcon = R.drawable.ic_ok;
1042             } else {
1043                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1044                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1045             }
1046             break;
1047
1048         case NO_NETWORK_CONNECTION:
1049             mAuthStatusIcon = R.drawable.no_network;
1050             mAuthStatusText = R.string.auth_no_net_conn_title;
1051             break;
1052
1053         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1054             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1055             break;
1056         case BAD_OC_VERSION:
1057             mAuthStatusText = R.string.auth_bad_oc_version_title;
1058             break;
1059         case WRONG_CONNECTION:
1060             mAuthStatusText = R.string.auth_wrong_connection_title;
1061             break;
1062         case TIMEOUT:
1063             mAuthStatusText = R.string.auth_timeout_title;
1064             break;
1065         case INCORRECT_ADDRESS:
1066             mAuthStatusText = R.string.auth_incorrect_address_title;
1067             break;
1068         case SSL_ERROR:
1069             mAuthStatusText = R.string.auth_ssl_general_error_title;
1070             break;
1071         case UNAUTHORIZED:
1072             mAuthStatusText = R.string.auth_unauthorized;
1073             break;
1074         case HOST_NOT_AVAILABLE:
1075             mAuthStatusText = R.string.auth_unknown_host_title;
1076             break;
1077         case INSTANCE_NOT_CONFIGURED:
1078             mAuthStatusText = R.string.auth_not_configured_title;
1079             break;
1080         case FILE_NOT_FOUND:
1081             mAuthStatusText = R.string.auth_incorrect_path_title;
1082             break;
1083         case OAUTH2_ERROR:
1084             mAuthStatusText = R.string.auth_oauth_error;
1085             break;
1086         case OAUTH2_ERROR_ACCESS_DENIED:
1087             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1088             break;
1089         case ACCOUNT_NOT_NEW:
1090             mAuthStatusText = R.string.auth_account_not_new;
1091             break;
1092         case ACCOUNT_NOT_THE_SAME:
1093             mAuthStatusText = R.string.auth_account_not_the_same;
1094             break;
1095         case UNHANDLED_HTTP_CODE:
1096         case UNKNOWN_ERROR:
1097             mAuthStatusText = R.string.auth_unknown_error_title;
1098             break;
1099         default:
1100             mAuthStatusText = 0;
1101             mAuthStatusIcon = 0;
1102         }
1103     }
1104
1105
1106     /**
1107      * Processes the result of the request for and access token send
1108      * to an OAuth authorization server.
1109      *
1110      * @param operation     Operation performed requesting the access token.
1111      * @param result        Result of the operation.
1112      */
1113     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1114         try {
1115             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1116         } catch (IllegalArgumentException e) {
1117             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1118         }
1119
1120         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1121         if (result.isSuccess() && webdav_path != null) {
1122             /// be gentle with the user
1123             showDialog(DIALOG_LOGIN_PROGRESS);
1124
1125             /// time to test the retrieved access token on the ownCloud server
1126             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1127             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1128             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1129             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1130             client.setBearerCredentials(mAuthToken);
1131             mAuthCheckOperation.execute(client, this, mHandler);
1132
1133         } else {
1134             updateAuthStatusIconAndText(result);
1135             showAuthStatus();
1136             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1137         }
1138     }
1139
1140
1141     /**
1142      * Processes the result of the access check performed to try the user credentials.
1143      *
1144      * Creates a new account through the AccountManager.
1145      *
1146      * @param operation     Access check performed.
1147      * @param result        Result of the operation.
1148      */
1149     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1150         try {
1151             dismissDialog(DIALOG_LOGIN_PROGRESS);
1152         } catch (IllegalArgumentException e) {
1153             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1154         }
1155
1156         if (result.isSuccess()) {
1157             Log_OC.d(TAG, "Successful access - time to save the account");
1158
1159             boolean success = false;
1160             if (mAction == ACTION_CREATE) {
1161                 success = createAccount();
1162
1163             } else {
1164                 updateToken();
1165                 success = true;
1166             }
1167
1168             if (success) {
1169                 finish();
1170             }
1171
1172         } else if (result.isServerFail() || result.isException()) {
1173             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1174             mServerIsChecked = true;
1175             mServerIsValid = false;
1176             mIsSslConn = false;
1177             mOcServerChkOperation = null;
1178             mDiscoveredVersion = null;
1179             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1180
1181             // update status icon and text
1182             updateServerStatusIconAndText(result);
1183             showServerStatus();
1184             mAuthStatusIcon = 0;
1185             mAuthStatusText = 0;
1186             showAuthStatus();
1187
1188             // update input controls state
1189             showRefreshButton();
1190             mOkButton.setEnabled(false);
1191
1192             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1193             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1194                 mLastSslUntrustedServerResult = result;
1195                 showDialog(DIALOG_SSL_VALIDATOR);
1196             }
1197
1198         } else {    // authorization fail due to client side - probably wrong credentials
1199             updateAuthStatusIconAndText(result);
1200             showAuthStatus();
1201             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1202         }
1203
1204     }
1205
1206
1207     /**
1208      * Sets the proper response to get that the Account Authenticator that started this activity saves
1209      * a new authorization token for mAccount.
1210      */
1211     private void updateToken() {
1212         Bundle response = new Bundle();
1213         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1214         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1215
1216         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1217             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1218             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1219             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1220
1221         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1222
1223             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1224             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1225             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1226
1227         } else {
1228             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1229             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1230         }
1231         setAccountAuthenticatorResult(response);
1232
1233     }
1234
1235
1236     /**
1237      * Creates a new account through the Account Authenticator that started this activity.
1238      *
1239      * This makes the account permanent.
1240      *
1241      * TODO Decide how to name the OAuth accounts
1242      */
1243     private boolean createAccount() {
1244         /// create and save new ownCloud account
1245         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1246         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1247
1248         Uri uri = Uri.parse(mHostBaseUrl);
1249         String username = mUsernameInput.getText().toString().trim();
1250         if (isOAuth) {
1251             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1252         }
1253         String accountName = username + "@" + uri.getHost();
1254         if (uri.getPort() >= 0) {
1255             accountName += ":" + uri.getPort();
1256         }
1257         mAccount = new Account(accountName, MainApp.getAccountType());
1258         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1259             // fail - not a new account, but an existing one; disallow
1260             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1261             updateAuthStatusIconAndText(result);
1262             showAuthStatus();
1263             Log_OC.d(TAG, result.getLogMessage());
1264             return false;
1265
1266         } else {
1267
1268             if (isOAuth || isSaml) {
1269                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1270             } else {
1271                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1272             }
1273
1274             /// add the new account as default in preferences, if there is none already
1275             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1276             if (defaultAccount == null) {
1277                 SharedPreferences.Editor editor = PreferenceManager
1278                         .getDefaultSharedPreferences(this).edit();
1279                 editor.putString("select_oc_account", accountName);
1280                 editor.commit();
1281             }
1282
1283             /// prepare result to return to the Authenticator
1284             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1285             final Intent intent = new Intent();
1286             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1287             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1288             /*if (!isOAuth)
1289                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1290             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1291             if (isOAuth || isSaml) {
1292                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1293             }
1294             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1295             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1296             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1297             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SHARE_API, Boolean.toString(mIsSharedSupported));
1298             if (isSaml) {
1299                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1300             } else if (isOAuth) {
1301                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1302             }
1303
1304             setAccountAuthenticatorResult(intent.getExtras());
1305             setResult(RESULT_OK, intent);
1306
1307             return true;
1308         }
1309     }
1310
1311
1312     /**
1313      * {@inheritDoc}
1314      *
1315      * Necessary to update the contents of the SSL Dialog
1316      *
1317      * TODO move to some common place for all possible untrusted SSL failures
1318      */
1319     @Override
1320     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1321         switch (id) {
1322         case DIALOG_LOGIN_PROGRESS:
1323         case DIALOG_CERT_NOT_SAVED:
1324         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1325             break;
1326         case DIALOG_SSL_VALIDATOR: {
1327             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1328             break;
1329         }
1330         default:
1331             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1332         }
1333     }
1334
1335
1336     /**
1337      * {@inheritDoc}
1338      */
1339     @Override
1340     protected Dialog onCreateDialog(int id) {
1341         Dialog dialog = null;
1342         switch (id) {
1343         case DIALOG_LOGIN_PROGRESS: {
1344             /// simple progress dialog
1345             ProgressDialog working_dialog = new ProgressDialog(this);
1346             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1347             working_dialog.setIndeterminate(true);
1348             working_dialog.setCancelable(true);
1349             working_dialog
1350             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1351                 @Override
1352                 public void onCancel(DialogInterface dialog) {
1353                     /// TODO study if this is enough
1354                     Log_OC.i(TAG, "Login canceled");
1355                     if (mOperationThread != null) {
1356                         mOperationThread.interrupt();
1357                         finish();
1358                     }
1359                 }
1360             });
1361             dialog = working_dialog;
1362             break;
1363         }
1364         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1365             ProgressDialog working_dialog = new ProgressDialog(this);
1366             working_dialog.setMessage(String.format("Getting authorization"));
1367             working_dialog.setIndeterminate(true);
1368             working_dialog.setCancelable(true);
1369             working_dialog
1370             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1371                 @Override
1372                 public void onCancel(DialogInterface dialog) {
1373                     Log_OC.i(TAG, "Login canceled");
1374                     finish();
1375                 }
1376             });
1377             dialog = working_dialog;
1378             break;
1379         }
1380         case DIALOG_SSL_VALIDATOR: {
1381             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1382             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1383             break;
1384         }
1385         case DIALOG_CERT_NOT_SAVED: {
1386             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1387             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1388             builder.setCancelable(false);
1389             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1390                 @Override
1391                 public void onClick(DialogInterface dialog, int which) {
1392                     dialog.dismiss();
1393                 };
1394             });
1395             dialog = builder.create();
1396             break;
1397         }
1398         default:
1399             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1400         }
1401         return dialog;
1402     }
1403
1404
1405     /**
1406      * Starts and activity to open the 'new account' page in the ownCloud web site
1407      *
1408      * @param view      'Account register' button
1409      */
1410     public void onRegisterClick(View view) {
1411         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1412         setResult(RESULT_CANCELED);
1413         startActivity(register);
1414     }
1415
1416
1417     /**
1418      * Updates the content and visibility state of the icon and text associated
1419      * to the last check on the ownCloud server.
1420      */
1421     private void showServerStatus() {
1422         TextView tv = (TextView) findViewById(R.id.server_status_text);
1423
1424         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1425             tv.setVisibility(View.INVISIBLE);
1426
1427         } else {
1428             tv.setText(mServerStatusText);
1429             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1430             tv.setVisibility(View.VISIBLE);
1431         }
1432
1433     }
1434
1435
1436     /**
1437      * Updates the content and visibility state of the icon and text associated
1438      * to the interactions with the OAuth authorization server.
1439      */
1440     private void showAuthStatus() {
1441         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1442             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1443
1444         } else {
1445             mAuthStatusLayout.setText(mAuthStatusText);
1446             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1447             mAuthStatusLayout.setVisibility(View.VISIBLE);
1448         }
1449     }
1450
1451
1452     private void showRefreshButton() {
1453         mRefreshButton.setVisibility(View.VISIBLE);
1454     }
1455
1456     private void hideRefreshButton() {
1457         mRefreshButton.setVisibility(View.GONE);
1458     }
1459
1460     /**
1461      * Called when the refresh button in the input field for ownCloud host is clicked.
1462      *
1463      * Performs a new check on the URL in the input field.
1464      *
1465      * @param view      Refresh 'button'
1466      */
1467     public void onRefreshClick(View view) {
1468         checkOcServer();
1469     }
1470
1471
1472     /**
1473      * Called when the eye icon in the password field is clicked.
1474      *
1475      * Toggles the visibility of the password in the field.
1476      */
1477     public void onViewPasswordClick() {
1478         int selectionStart = mPasswordInput.getSelectionStart();
1479         int selectionEnd = mPasswordInput.getSelectionEnd();
1480         if (isPasswordVisible()) {
1481             hidePassword();
1482         } else {
1483             showPassword();
1484         }
1485         mPasswordInput.setSelection(selectionStart, selectionEnd);
1486     }
1487
1488
1489     /**
1490      * Called when the checkbox for OAuth authorization is clicked.
1491      *
1492      * Hides or shows the input fields for user & password.
1493      *
1494      * @param view      'View password' 'button'
1495      */
1496     public void onCheckClick(View view) {
1497         CheckBox oAuth2Check = (CheckBox)view;
1498         if (oAuth2Check.isChecked()) {
1499             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1500         } else {
1501             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1502         }
1503         adaptViewAccordingToAuthenticationMethod();
1504     }
1505
1506
1507     /**
1508      * Changes the visibility of input elements depending on
1509      * the current authorization method.
1510      */
1511     private void adaptViewAccordingToAuthenticationMethod () {
1512         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1513             // OAuth 2 authorization
1514             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1515             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1516             mUsernameInput.setVisibility(View.GONE);
1517             mPasswordInput.setVisibility(View.GONE);
1518
1519         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1520             // SAML-based web Single Sign On
1521             mOAuthAuthEndpointText.setVisibility(View.GONE);
1522             mOAuthTokenEndpointText.setVisibility(View.GONE);
1523             mUsernameInput.setVisibility(View.GONE);
1524             mPasswordInput.setVisibility(View.GONE);
1525         } else {
1526             // basic HTTP authorization
1527             mOAuthAuthEndpointText.setVisibility(View.GONE);
1528             mOAuthTokenEndpointText.setVisibility(View.GONE);
1529             mUsernameInput.setVisibility(View.VISIBLE);
1530             mPasswordInput.setVisibility(View.VISIBLE);
1531         }
1532     }
1533
1534     /**
1535      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1536      */
1537     public void onSavedCertificate() {
1538         checkOcServer();
1539     }
1540
1541     /**
1542      * Called from SslValidatorDialog when a new server certificate could not be saved
1543      * when the user requested it.
1544      */
1545     @Override
1546     public void onFailedSavingCertificate() {
1547         showDialog(DIALOG_CERT_NOT_SAVED);
1548     }
1549
1550
1551     /**
1552      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1553      *
1554      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1555      *  or to throw the server test when the only field on screen is the URL input field.
1556      */
1557     @Override
1558     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1559         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1560             if (mOkButton.isEnabled()) {
1561                 mOkButton.performClick();
1562             }
1563
1564         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1565             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1566                 checkOcServer();
1567             }
1568         }
1569         return false;   // always return false to grant that the software keyboard is hidden anyway
1570     }
1571
1572
1573     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1574
1575         private int fuzz = 75;
1576
1577         /**
1578          * {@inheritDoc}
1579          */
1580         @Override
1581         public boolean onTouch(View view, MotionEvent event) {
1582             Drawable rightDrawable = null;
1583             if (view instanceof TextView) {
1584                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1585                 if (drawables.length > 2) {
1586                     rightDrawable = drawables[2];
1587                 }
1588             }
1589             if (rightDrawable != null) {
1590                 final int x = (int) event.getX();
1591                 final int y = (int) event.getY();
1592                 final Rect bounds = rightDrawable.getBounds();
1593                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1594                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1595
1596                     return onDrawableTouch(event);
1597                 }
1598             }
1599             return false;
1600         }
1601
1602         public abstract boolean onDrawableTouch(final MotionEvent event);
1603     }
1604
1605
1606     public void onSamlDialogSuccess(String sessionCookie){
1607         mAuthToken = sessionCookie;
1608
1609         if (sessionCookie != null && sessionCookie.length() > 0) {
1610             mAuthToken = sessionCookie;
1611
1612             GetUserNameRemoteOperation getUserOperation = new GetUserNameRemoteOperation();
1613             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1614             client.setSsoSessionCookie(mAuthToken);
1615             getUserOperation.execute(client, this, mHandler);
1616         }
1617
1618
1619     }
1620
1621
1622     @Override
1623     public void onSsoFinished(String sessionCookies) {
1624         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1625
1626         if (sessionCookies != null && sessionCookies.length() > 0) {
1627             Log_OC.d(TAG, "Successful SSO - time to save the account");
1628             onSamlDialogSuccess(sessionCookies);
1629             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1630             if (fd != null && fd instanceof SherlockDialogFragment) {
1631                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1632                 if (d != null && d.isShowing()) {
1633                     d.dismiss();
1634                 }
1635             }
1636
1637         } else {
1638             // TODO - show fail
1639             Log_OC.d(TAG, "SSO failed");
1640         }
1641
1642     }
1643
1644     /** Show auth_message
1645      *
1646      * @param message
1647      */
1648     private void showAuthMessage(String message) {
1649        mAuthMessage.setVisibility(View.VISIBLE);
1650        mAuthMessage.setText(message);
1651     }
1652
1653     private void hideAuthMessage() {
1654         mAuthMessage.setVisibility(View.GONE);
1655     }
1656
1657     @Override
1658     public boolean onTouchEvent(MotionEvent event) {
1659         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1660                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1661             checkOcServer();
1662         }
1663         return super.onTouchEvent(event);
1664     }
1665
1666 }