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.lib.common.accounts.AccountTypeUtils;
  57 import com.owncloud.android.lib.common.accounts.AccountUtils.Constants;
  58 import com.owncloud.android.lib.common.OwnCloudClientFactory;
  59 import com.owncloud.android.lib.common.OwnCloudClient;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61
  62 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  63 import com.owncloud.android.lib.resources.status.GetRemoteStatusOperation;
  64 import com.owncloud.android.lib.common.operations.RemoteOperation;
  65 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  66 import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
  67 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  68 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  69
  70 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  71 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  72 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  73 import com.owncloud.android.utils.Log_OC;
  74 import com.owncloud.android.lib.resources.status.OwnCloudVersion;
  75
  76 /**
  77  * This Activity is used to add an ownCloud account to the App
  78  *
  79  * @author Bartek Przybylski
  80  * @author David A. Velasco
  81  */
  82 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  83 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  84
  85     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  86
  87     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  88     public static final String EXTRA_USER_NAME = "USER_NAME";
  89     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  90     public static final String EXTRA_ACTION = "ACTION";
  91     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  92
  93     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  94     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  95     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  96     private static final String KEY_OC_VERSION = "OC_VERSION";
  97     private static final String KEY_OC_VERSION_STRING = "OC_VERSION_STRING";
  98     private static final String KEY_ACCOUNT = "ACCOUNT";
  99     private static final String KEY_SERVER_VALID = "SERVER_VALID";
 100     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
 101     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
 102     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 103     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 104     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 105     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 106     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 107     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 108     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 109     //private static final String KEY_IS_SHARED_SUPPORTED = "KEY_IS_SHARE_SUPPORTED";
 110
 111     private static final String AUTH_ON = "on";
 112     private static final String AUTH_OFF = "off";
 113     private static final String AUTH_OPTIONAL = "optional";
 114
 115     private static final int DIALOG_LOGIN_PROGRESS = 0;
 116     private static final int DIALOG_SSL_VALIDATOR = 1;
 117     private static final int DIALOG_CERT_NOT_SAVED = 2;
 118     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 119
 120     public static final byte ACTION_CREATE = 0;
 121     public static final byte ACTION_UPDATE_TOKEN = 1;
 122
 123     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 124
 125     private String mHostBaseUrl;
 126     private OwnCloudVersion mDiscoveredVersion;
 127
 128     private String mAuthMessageText;
 129     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 130     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 131     private int mAuthStatusText, mAuthStatusIcon;
 132     private TextView mAuthStatusLayout;
 133
 134     private final Handler mHandler = new Handler();
 135     private Thread mOperationThread;
 136     private GetRemoteStatusOperation mOcServerChkOperation;
 137     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 138     private RemoteOperationResult mLastSslUntrustedServerResult;
 139
 140     private Uri mNewCapturedUriFromOAuth2Redirection;
 141
 142     private AccountManager mAccountMgr;
 143     private boolean mJustCreated;
 144     private byte mAction;
 145     private Account mAccount;
 146
 147     private TextView mAuthMessage;
 148
 149     private EditText mHostUrlInput;
 150     private boolean mHostUrlInputEnabled;
 151     private View mRefreshButton;
 152
 153     private String mAuthTokenType;
 154
 155     private EditText mUsernameInput;
 156     private EditText mPasswordInput;
 157
 158     private CheckBox mOAuth2Check;
 159
 160     private TextView mOAuthAuthEndpointText;
 161     private TextView mOAuthTokenEndpointText;
 162
 163     private SamlWebViewDialog mSamlDialog;
 164
 165     private View mOkButton;
 166
 167     private String mAuthToken;
 168
 169     private boolean mResumed; // Control if activity is resumed
 170
 171
 172     /**
 173      * {@inheritDoc}
 174      *
 175      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 176      */
 177     @Override
 178     protected void onCreate(Bundle savedInstanceState) {
 179         super.onCreate(savedInstanceState);
 180         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 181
 182         /// set view and get references to view elements
 183         setContentView(R.layout.account_setup);
 184         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 185         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 186         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 187         mUsernameInput = (EditText) findViewById(R.id.account_username);
 188         mPasswordInput = (EditText) findViewById(R.id.account_password);
 189         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 190         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 191         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 192         mOkButton = findViewById(R.id.buttonOK);
 193         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 194
 195         /// set Host Url Input Enabled
 196         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 197
 198         /// set visibility of link for new users
 199         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 200         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 201         if (welcomeLink != null) {
 202             if (accountRegisterVisibility) {
 203                 welcomeLink.setVisibility(View.VISIBLE);
 204                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 205             } else {
 206                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 207             }
 208         }
 209
 210         /// initialization
 211         mAccountMgr = AccountManager.get(this);
 212         mNewCapturedUriFromOAuth2Redirection = null;
 213         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 214         mAccount = null;
 215         mHostBaseUrl = "";
 216         boolean refreshButtonEnabled = false;
 217
 218         // URL input configuration applied
 219         if (!mHostUrlInputEnabled)
 220         {
 221             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 222             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 223
 224         } else {
 225             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 226         }
 227
 228         if (savedInstanceState == null) {
 229             mResumed = false;
 230             /// connection state and info
 231             mAuthMessageVisibility = View.GONE;
 232             mServerStatusText = mServerStatusIcon = 0;
 233             mServerIsValid = false;
 234             mServerIsChecked = false;
 235             mIsSslConn = false;
 236             mAuthStatusText = mAuthStatusIcon = 0;
 237
 238             /// retrieve extras from intent
 239             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 240             if (mAccount != null) {
 241                 String ocVersion = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_VERSION);
 242                 String ocVersionString = mAccountMgr.getUserData(mAccount, Constants.KEY_OC_VERSION_STRING);
 243                 if (ocVersion != null) {
 244                     mDiscoveredVersion = new OwnCloudVersion(ocVersion, ocVersionString);
 245                 }
 246                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, Constants.KEY_OC_BASE_URL));
 247                 mHostUrlInput.setText(mHostBaseUrl);
 248                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 249                 mUsernameInput.setText(userName);
 250
 251             }
 252             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 253             mJustCreated = true;
 254
 255             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 256                 checkOcServer();
 257             }
 258
 259         } else {
 260             mResumed = true;
 261             /// connection state and info
 262             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 263             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 264             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 265             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 266             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 267             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 268             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 269             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 270             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 271             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 272                 showPassword();
 273             }
 274
 275             /// server data
 276             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 277             String ocVersionString = savedInstanceState.getString(KEY_OC_VERSION_STRING);
 278             if (ocVersion != null) {
 279                 mDiscoveredVersion = new OwnCloudVersion(ocVersion, ocVersionString);
 280             }
 281             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 282
 283             // account data, if updating
 284             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 285             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 286             if (mAuthTokenType == null) {
 287                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 288
 289             }
 290
 291             // check if server check was interrupted by a configuration change
 292             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 293                 checkOcServer();
 294             }
 295
 296             // refresh button enabled
 297             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 298
 299
 300         }
 301
 302         if (mAuthMessageVisibility== View.VISIBLE) {
 303             showAuthMessage(mAuthMessageText);
 304         }
 305         else {
 306             hideAuthMessage();
 307         }
 308         adaptViewAccordingToAuthenticationMethod();
 309         showServerStatus();
 310         showAuthStatus();
 311
 312         if (mAction == ACTION_UPDATE_TOKEN) {
 313             /// lock things that should not change
 314             mHostUrlInput.setEnabled(false);
 315             mHostUrlInput.setFocusable(false);
 316             mUsernameInput.setEnabled(false);
 317             mUsernameInput.setFocusable(false);
 318             mOAuth2Check.setVisibility(View.GONE);
 319         }
 320
 321         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 322         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 323         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 324
 325         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 326                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 327             mOAuth2Check.setVisibility(View.GONE);
 328         }
 329
 330         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 331
 332         /// bind view elements to listeners and other friends
 333         mHostUrlInput.setOnFocusChangeListener(this);
 334         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 335         mHostUrlInput.setOnEditorActionListener(this);
 336         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 337
 338             @Override
 339             public void afterTextChanged(Editable s) {
 340                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 341                     mOkButton.setEnabled(false);
 342                 }
 343             }
 344
 345             @Override
 346             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 347             }
 348
 349             @Override
 350             public void onTextChanged(CharSequence s, int start, int before, int count) {
 351                 if (!mResumed) {
 352                     mAuthStatusIcon = 0;
 353                     mAuthStatusText = 0;
 354                     showAuthStatus();
 355                 }
 356                 mResumed = false;
 357             }
 358         });
 359
 360         mPasswordInput.setOnFocusChangeListener(this);
 361         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 362         mPasswordInput.setOnEditorActionListener(this);
 363         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 364             @Override
 365             public boolean onDrawableTouch(final MotionEvent event) {
 366                 if (event.getAction() == MotionEvent.ACTION_UP) {
 367                     AuthenticatorActivity.this.onViewPasswordClick();
 368                 }
 369                 return true;
 370             }
 371         });
 372
 373         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 374             @Override
 375             public boolean onTouch(View view, MotionEvent event) {
 376                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 377                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 378                             mHostUrlInput.hasFocus()) {
 379                         checkOcServer();
 380                     }
 381                 }
 382                 return false;
 383             }
 384         });
 385     }
 386
 387
 388
 389     private void initAuthorizationMethod() {
 390         boolean oAuthRequired = false;
 391         boolean samlWebSsoRequired = false;
 392
 393         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 394         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 395
 396         // TODO could be a good moment to validate the received token type, if not null
 397
 398         if (mAuthTokenType == null) {
 399             if (mAccount != null) {
 400                 /// same authentication method than the one used to create the account to update
 401                 oAuthRequired = (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2) != null);
 402                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 403
 404             } else {
 405                 /// use the one set in setup.xml
 406                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 407                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 408             }
 409             if (oAuthRequired) {
 410                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 411             } else if (samlWebSsoRequired) {
 412                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 413             } else {
 414                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 415             }
 416         }
 417
 418         if (mAccount != null) {
 419             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 420             mUsernameInput.setText(userName);
 421         }
 422
 423         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 424
 425     }
 426
 427     /**
 428      * Saves relevant state before {@link #onPause()}
 429      *
 430      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 431      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 432      *
 433      * See {@link #loadSavedInstanceState(Bundle)}
 434      */
 435     @Override
 436     protected void onSaveInstanceState(Bundle outState) {
 437         super.onSaveInstanceState(outState);
 438
 439         /// connection state and info
 440         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 441         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 442         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 443         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 444         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 445         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 446         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 447         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 448         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 449         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 450         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 451
 452         /// server data
 453         if (mDiscoveredVersion != null) {
 454             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.getVersion());
 455             outState.putString(KEY_OC_VERSION_STRING, mDiscoveredVersion.getVersionString());
 456         }
 457         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 458
 459         /// account data, if updating
 460         if (mAccount != null) {
 461             outState.putParcelable(KEY_ACCOUNT, mAccount);
 462         }
 463         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 464
 465         // refresh button enabled
 466         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 467
 468
 469     }
 470
 471
 472     /**
 473      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 474      * is caught here.
 475      *
 476      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 477      * AndroidManifest.xml file.
 478      */
 479     @Override
 480     protected void onNewIntent (Intent intent) {
 481         Log_OC.d(TAG, "onNewIntent()");
 482         Uri data = intent.getData();
 483         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 484             mNewCapturedUriFromOAuth2Redirection = data;
 485         }
 486     }
 487
 488
 489     /**
 490      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 491      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 492      */
 493     @Override
 494     protected void onResume() {
 495         super.onResume();
 496         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 497             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 498                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 499                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 500             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 501                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 502                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 503             } else {
 504                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 505                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 506             }
 507         }
 508
 509         if (mNewCapturedUriFromOAuth2Redirection != null) {
 510             getOAuth2AccessTokenFromCapturedRedirection();
 511         }
 512
 513         mJustCreated = false;
 514
 515     }
 516
 517
 518     /**
 519      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 520      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 521      */
 522     private void getOAuth2AccessTokenFromCapturedRedirection() {
 523         /// Parse data from OAuth redirection
 524         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 525         mNewCapturedUriFromOAuth2Redirection = null;
 526
 527         /// Showing the dialog with instructions for the user.
 528         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 529
 530         /// GET ACCESS TOKEN to the oAuth server
 531         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 532                 getString(R.string.oauth2_redirect_uri),
 533                 getString(R.string.oauth2_grant_type),
 534                 queryParameters);
 535         //OwnCloudClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 536         OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 537         operation.execute(client, this, mHandler);
 538     }
 539
 540
 541
 542     /**
 543      * Handles the change of focus on the text inputs for the server URL and the password
 544      */
 545     public void onFocusChange(View view, boolean hasFocus) {
 546         if (view.getId() == R.id.hostUrlInput) {
 547             if (!hasFocus) {
 548                 onUrlInputFocusLost((TextView) view);
 549             }
 550             else {
 551                 hideRefreshButton();
 552             }
 553
 554         } else if (view.getId() == R.id.account_password) {
 555             onPasswordFocusChanged((TextView) view, hasFocus);
 556         }
 557     }
 558
 559
 560     /**
 561      * Handles changes in focus on the text input for the server URL.
 562      *
 563      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 564      * other field. The operation to check the existence of the server in the entered URL is
 565      * started.
 566      *
 567      * When hasFocus:    user 'comes back' to write again the server URL.
 568      *
 569      * @param hostInput     TextView with the URL input field receiving the change of focus.
 570      */
 571     private void onUrlInputFocusLost(TextView hostInput) {
 572         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 573             checkOcServer();
 574         } else {
 575             mOkButton.setEnabled(mServerIsValid);
 576             if (!mServerIsValid) {
 577                 showRefreshButton();
 578             }
 579         }
 580     }
 581
 582
 583     private void checkOcServer() {
 584         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 585
 586         if (!mHostUrlInputEnabled){
 587             uri = getString(R.string.server_url);
 588         }
 589
 590         mServerIsValid = false;
 591         mServerIsChecked = 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  GetRemoteStatusOperation(uri, this);
 600             OwnCloudClient 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         OwnCloudClient 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         OwnCloudClient 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 GetRemoteStatusOperation) {
 790             onOcServerCheckFinish((GetRemoteStatusOperation) 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 GetRemoteUserNameOperation) {
 803             onGetUserNameFinish((GetRemoteUserNameOperation) operation, result);
 804
 805         }
 806
 807     }
 808
 809     private void onGetUserNameFinish(GetRemoteUserNameOperation operation, RemoteOperationResult result) {
 810
 811         if (result.isSuccess()) {
 812             boolean success = false;
 813             String username = operation.getUserName();
 814
 815             if ( mAction == ACTION_CREATE) {
 816                 mUsernameInput.setText(username);
 817                 success = createAccount();
 818             } else {
 819
 820                 if (!mUsernameInput.getText().toString().equals(username)) {
 821                     // fail - not a new account, but an existing one; disallow
 822                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 823                     updateAuthStatusIconAndText(result);
 824                     showAuthStatus();
 825                     Log_OC.d(TAG, result.getLogMessage());
 826                 } else {
 827                   updateToken();
 828                   success = true;
 829                 }
 830             }
 831
 832             if (success)
 833                 finish();
 834         } else {
 835             updateStatusIconFailUserName();
 836             showAuthStatus();
 837             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
 838         }
 839
 840     }
 841
 842     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 843         try {
 844             dismissDialog(DIALOG_LOGIN_PROGRESS);
 845         } catch (IllegalArgumentException e) {
 846             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 847         }
 848
 849         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 850         if (result.isIdPRedirection()) {
 851             String url = result.getRedirectedLocation();
 852             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 853
 854             // Show dialog
 855             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 856             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 857
 858             mAuthStatusIcon = 0;
 859             mAuthStatusText = 0;
 860
 861         } else {
 862             mAuthStatusIcon = R.drawable.common_error;
 863             mAuthStatusText = R.string.auth_unsupported_auth_method;
 864
 865         }
 866         showAuthStatus();
 867     }
 868
 869
 870     /**
 871      * Processes the result of the server check performed when the user finishes the enter of the
 872      * server URL.
 873      *
 874      * @param operation     Server check performed.
 875      * @param result        Result of the check.
 876      */
 877     private void onOcServerCheckFinish(GetRemoteStatusOperation operation, RemoteOperationResult result) {
 878         if (operation.equals(mOcServerChkOperation)) {
 879             /// save result state
 880             mServerIsChecked = true;
 881             mServerIsValid = result.isSuccess();
 882             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 883             mOcServerChkOperation = null;
 884
 885             /// update status icon and text
 886             if (mServerIsValid) {
 887                 hideRefreshButton();
 888             } else {
 889                 showRefreshButton();
 890             }
 891             updateServerStatusIconAndText(result);
 892             showServerStatus();
 893
 894             /// very special case (TODO: move to a common place for all the remote operations)
 895             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 896                 mLastSslUntrustedServerResult = result;
 897                 showDialog(DIALOG_SSL_VALIDATOR);
 898             }
 899
 900             /// retrieve discovered version and normalize server URL
 901             mDiscoveredVersion = operation.getDiscoveredVersion();
 902             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 903
 904             /// allow or not the user try to access the server
 905             mOkButton.setEnabled(mServerIsValid);
 906
 907         }   // else nothing ; only the last check operation is considered;
 908         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 909     }
 910
 911
 912     private String normalizeUrl(String url) {
 913         if (url != null && url.length() > 0) {
 914             url = url.trim();
 915             if (!url.toLowerCase().startsWith("http://") &&
 916                     !url.toLowerCase().startsWith("https://")) {
 917                 if (mIsSslConn) {
 918                     url = "https://" + url;
 919                 } else {
 920                     url = "http://" + url;
 921                 }
 922             }
 923
 924             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 925             url = trimUrlWebdav(url);
 926
 927             if (url.endsWith("/")) {
 928                 url = url.substring(0, url.length() - 1);
 929             }
 930
 931         }
 932         return (url != null ? url : "");
 933     }
 934
 935
 936     private String trimUrlWebdav(String url){
 937         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 938             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 939         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 940             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 941         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 942             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 943         }
 944         return (url != null ? url : "");
 945     }
 946
 947
 948     /**
 949      * Chooses the right icon and text to show to the user for the received operation result.
 950      *
 951      * @param result    Result of a remote operation performed in this activity
 952      */
 953     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 954         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 955
 956         switch (result.getCode()) {
 957         case OK_SSL:
 958             mServerStatusIcon = android.R.drawable.ic_secure;
 959             mServerStatusText = R.string.auth_secure_connection;
 960             break;
 961
 962         case OK_NO_SSL:
 963         case OK:
 964             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 965                 mServerStatusText = R.string.auth_connection_established;
 966                 mServerStatusIcon = R.drawable.ic_ok;
 967             } else {
 968                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 969                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 970             }
 971             break;
 972
 973         case NO_NETWORK_CONNECTION:
 974             mServerStatusIcon = R.drawable.no_network;
 975             mServerStatusText = R.string.auth_no_net_conn_title;
 976             break;
 977
 978         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 979             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 980             break;
 981         case BAD_OC_VERSION:
 982             mServerStatusText = R.string.auth_bad_oc_version_title;
 983             break;
 984         case WRONG_CONNECTION:
 985             mServerStatusText = R.string.auth_wrong_connection_title;
 986             break;
 987         case TIMEOUT:
 988             mServerStatusText = R.string.auth_timeout_title;
 989             break;
 990         case INCORRECT_ADDRESS:
 991             mServerStatusText = R.string.auth_incorrect_address_title;
 992             break;
 993         case SSL_ERROR:
 994             mServerStatusText = R.string.auth_ssl_general_error_title;
 995             break;
 996         case UNAUTHORIZED:
 997             mServerStatusText = R.string.auth_unauthorized;
 998             break;
 999         case HOST_NOT_AVAILABLE:
1000             mServerStatusText = R.string.auth_unknown_host_title;
1001             break;
1002         case INSTANCE_NOT_CONFIGURED:
1003             mServerStatusText = R.string.auth_not_configured_title;
1004             break;
1005         case FILE_NOT_FOUND:
1006             mServerStatusText = R.string.auth_incorrect_path_title;
1007             break;
1008         case OAUTH2_ERROR:
1009             mServerStatusText = R.string.auth_oauth_error;
1010             break;
1011         case OAUTH2_ERROR_ACCESS_DENIED:
1012             mServerStatusText = R.string.auth_oauth_error_access_denied;
1013             break;
1014         case UNHANDLED_HTTP_CODE:
1015         case UNKNOWN_ERROR:
1016             mServerStatusText = R.string.auth_unknown_error_title;
1017             break;
1018         default:
1019             mServerStatusText = 0;
1020             mServerStatusIcon = 0;
1021         }
1022     }
1023
1024
1025     /**
1026      * Chooses the right icon and text to show to the user for the received operation result.
1027      *
1028      * @param result    Result of a remote operation performed in this activity
1029      */
1030     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1031         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1032
1033         switch (result.getCode()) {
1034         case OK_SSL:
1035             mAuthStatusIcon = android.R.drawable.ic_secure;
1036             mAuthStatusText = R.string.auth_secure_connection;
1037             break;
1038
1039         case OK_NO_SSL:
1040         case OK:
1041             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1042                 mAuthStatusText = R.string.auth_connection_established;
1043                 mAuthStatusIcon = R.drawable.ic_ok;
1044             } else {
1045                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1046                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1047             }
1048             break;
1049
1050         case NO_NETWORK_CONNECTION:
1051             mAuthStatusIcon = R.drawable.no_network;
1052             mAuthStatusText = R.string.auth_no_net_conn_title;
1053             break;
1054
1055         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1056             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1057             break;
1058         case BAD_OC_VERSION:
1059             mAuthStatusText = R.string.auth_bad_oc_version_title;
1060             break;
1061         case WRONG_CONNECTION:
1062             mAuthStatusText = R.string.auth_wrong_connection_title;
1063             break;
1064         case TIMEOUT:
1065             mAuthStatusText = R.string.auth_timeout_title;
1066             break;
1067         case INCORRECT_ADDRESS:
1068             mAuthStatusText = R.string.auth_incorrect_address_title;
1069             break;
1070         case SSL_ERROR:
1071             mAuthStatusText = R.string.auth_ssl_general_error_title;
1072             break;
1073         case UNAUTHORIZED:
1074             mAuthStatusText = R.string.auth_unauthorized;
1075             break;
1076         case HOST_NOT_AVAILABLE:
1077             mAuthStatusText = R.string.auth_unknown_host_title;
1078             break;
1079         case INSTANCE_NOT_CONFIGURED:
1080             mAuthStatusText = R.string.auth_not_configured_title;
1081             break;
1082         case FILE_NOT_FOUND:
1083             mAuthStatusText = R.string.auth_incorrect_path_title;
1084             break;
1085         case OAUTH2_ERROR:
1086             mAuthStatusText = R.string.auth_oauth_error;
1087             break;
1088         case OAUTH2_ERROR_ACCESS_DENIED:
1089             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1090             break;
1091         case ACCOUNT_NOT_NEW:
1092             mAuthStatusText = R.string.auth_account_not_new;
1093             break;
1094         case ACCOUNT_NOT_THE_SAME:
1095             mAuthStatusText = R.string.auth_account_not_the_same;
1096             break;
1097         case UNHANDLED_HTTP_CODE:
1098         case UNKNOWN_ERROR:
1099             mAuthStatusText = R.string.auth_unknown_error_title;
1100             break;
1101         default:
1102             mAuthStatusText = 0;
1103             mAuthStatusIcon = 0;
1104         }
1105     }
1106
1107
1108     private void updateStatusIconFailUserName(){
1109         mAuthStatusIcon = android.R.drawable.ic_secure;
1110         mAuthStatusText = R.string.auth_fail_get_user_name;
1111     }
1112
1113     /**
1114      * Processes the result of the request for and access token send
1115      * to an OAuth authorization server.
1116      *
1117      * @param operation     Operation performed requesting the access token.
1118      * @param result        Result of the operation.
1119      */
1120     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1121         try {
1122             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1123         } catch (IllegalArgumentException e) {
1124             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1125         }
1126
1127         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1128         if (result.isSuccess() && webdav_path != null) {
1129             /// be gentle with the user
1130             showDialog(DIALOG_LOGIN_PROGRESS);
1131
1132             /// time to test the retrieved access token on the ownCloud server
1133             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1134             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1135             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1136             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1137             client.setBearerCredentials(mAuthToken);
1138             mAuthCheckOperation.execute(client, this, mHandler);
1139
1140         } else {
1141             updateAuthStatusIconAndText(result);
1142             showAuthStatus();
1143             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1144         }
1145     }
1146
1147
1148     /**
1149      * Processes the result of the access check performed to try the user credentials.
1150      *
1151      * Creates a new account through the AccountManager.
1152      *
1153      * @param operation     Access check performed.
1154      * @param result        Result of the operation.
1155      */
1156     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1157         try {
1158             dismissDialog(DIALOG_LOGIN_PROGRESS);
1159         } catch (IllegalArgumentException e) {
1160             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1161         }
1162
1163         if (result.isSuccess()) {
1164             Log_OC.d(TAG, "Successful access - time to save the account");
1165
1166             boolean success = false;
1167             if (mAction == ACTION_CREATE) {
1168                 success = createAccount();
1169
1170             } else {
1171                 updateToken();
1172                 success = true;
1173             }
1174
1175             if (success) {
1176                 finish();
1177             }
1178
1179         } else if (result.isServerFail() || result.isException()) {
1180             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1181             mServerIsChecked = true;
1182             mServerIsValid = false;
1183             mIsSslConn = false;
1184             mOcServerChkOperation = null;
1185             mDiscoveredVersion = null;
1186             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1187
1188             // update status icon and text
1189             updateServerStatusIconAndText(result);
1190             showServerStatus();
1191             mAuthStatusIcon = 0;
1192             mAuthStatusText = 0;
1193             showAuthStatus();
1194
1195             // update input controls state
1196             showRefreshButton();
1197             mOkButton.setEnabled(false);
1198
1199             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1200             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1201                 mLastSslUntrustedServerResult = result;
1202                 showDialog(DIALOG_SSL_VALIDATOR);
1203             }
1204
1205         } else {    // authorization fail due to client side - probably wrong credentials
1206             updateAuthStatusIconAndText(result);
1207             showAuthStatus();
1208             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1209         }
1210
1211     }
1212
1213
1214     /**
1215      * Sets the proper response to get that the Account Authenticator that started this activity saves
1216      * a new authorization token for mAccount.
1217      */
1218     private void updateToken() {
1219         Bundle response = new Bundle();
1220         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1221         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1222
1223         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1224             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1225             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1226             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1227
1228         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1229
1230             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1231             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1232             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1233
1234         } else {
1235             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1236             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1237         }
1238         setAccountAuthenticatorResult(response);
1239
1240     }
1241
1242
1243     /**
1244      * Creates a new account through the Account Authenticator that started this activity.
1245      *
1246      * This makes the account permanent.
1247      *
1248      * TODO Decide how to name the OAuth accounts
1249      */
1250     private boolean createAccount() {
1251         /// create and save new ownCloud account
1252         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1253         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1254
1255         Uri uri = Uri.parse(mHostBaseUrl);
1256         String username = mUsernameInput.getText().toString().trim();
1257         if (isOAuth) {
1258             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1259         }
1260         String accountName = username + "@" + uri.getHost();
1261         if (uri.getPort() >= 0) {
1262             accountName += ":" + uri.getPort();
1263         }
1264         mAccount = new Account(accountName, MainApp.getAccountType());
1265         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1266             // fail - not a new account, but an existing one; disallow
1267             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1268             updateAuthStatusIconAndText(result);
1269             showAuthStatus();
1270             Log_OC.d(TAG, result.getLogMessage());
1271             return false;
1272
1273         } else {
1274
1275             if (isOAuth || isSaml) {
1276                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1277             } else {
1278                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1279             }
1280
1281             /// add the new account as default in preferences, if there is none already
1282             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1283             if (defaultAccount == null) {
1284                 SharedPreferences.Editor editor = PreferenceManager
1285                         .getDefaultSharedPreferences(this).edit();
1286                 editor.putString("select_oc_account", accountName);
1287                 editor.commit();
1288             }
1289
1290             /// prepare result to return to the Authenticator
1291             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1292             final Intent intent = new Intent();
1293             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1294             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1295             /*if (!isOAuth)
1296                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1297             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1298             if (isOAuth || isSaml) {
1299                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1300             }
1301             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1302             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_VERSION,         mDiscoveredVersion.getVersion());
1303             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_VERSION_STRING,  mDiscoveredVersion.getVersionString());
1304             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1305
1306             if (isSaml) {
1307                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1308             } else if (isOAuth) {
1309                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1310             }
1311
1312             setAccountAuthenticatorResult(intent.getExtras());
1313             setResult(RESULT_OK, intent);
1314
1315             return true;
1316         }
1317     }
1318
1319
1320     /**
1321      * {@inheritDoc}
1322      *
1323      * Necessary to update the contents of the SSL Dialog
1324      *
1325      * TODO move to some common place for all possible untrusted SSL failures
1326      */
1327     @Override
1328     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1329         switch (id) {
1330         case DIALOG_LOGIN_PROGRESS:
1331         case DIALOG_CERT_NOT_SAVED:
1332         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1333             break;
1334         case DIALOG_SSL_VALIDATOR: {
1335             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1336             break;
1337         }
1338         default:
1339             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1340         }
1341     }
1342
1343
1344     /**
1345      * {@inheritDoc}
1346      */
1347     @Override
1348     protected Dialog onCreateDialog(int id) {
1349         Dialog dialog = null;
1350         switch (id) {
1351         case DIALOG_LOGIN_PROGRESS: {
1352             /// simple progress dialog
1353             ProgressDialog working_dialog = new ProgressDialog(this);
1354             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1355             working_dialog.setIndeterminate(true);
1356             working_dialog.setCancelable(true);
1357             working_dialog
1358             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1359                 @Override
1360                 public void onCancel(DialogInterface dialog) {
1361                     /// TODO study if this is enough
1362                     Log_OC.i(TAG, "Login canceled");
1363                     if (mOperationThread != null) {
1364                         mOperationThread.interrupt();
1365                         finish();
1366                     }
1367                 }
1368             });
1369             dialog = working_dialog;
1370             break;
1371         }
1372         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1373             ProgressDialog working_dialog = new ProgressDialog(this);
1374             working_dialog.setMessage(String.format("Getting authorization"));
1375             working_dialog.setIndeterminate(true);
1376             working_dialog.setCancelable(true);
1377             working_dialog
1378             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1379                 @Override
1380                 public void onCancel(DialogInterface dialog) {
1381                     Log_OC.i(TAG, "Login canceled");
1382                     finish();
1383                 }
1384             });
1385             dialog = working_dialog;
1386             break;
1387         }
1388         case DIALOG_SSL_VALIDATOR: {
1389             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1390             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1391             break;
1392         }
1393         case DIALOG_CERT_NOT_SAVED: {
1394             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1395             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1396             builder.setCancelable(false);
1397             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1398                 @Override
1399                 public void onClick(DialogInterface dialog, int which) {
1400                     dialog.dismiss();
1401                 };
1402             });
1403             dialog = builder.create();
1404             break;
1405         }
1406         default:
1407             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1408         }
1409         return dialog;
1410     }
1411
1412
1413     /**
1414      * Starts and activity to open the 'new account' page in the ownCloud web site
1415      *
1416      * @param view      'Account register' button
1417      */
1418     public void onRegisterClick(View view) {
1419         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1420         setResult(RESULT_CANCELED);
1421         startActivity(register);
1422     }
1423
1424
1425     /**
1426      * Updates the content and visibility state of the icon and text associated
1427      * to the last check on the ownCloud server.
1428      */
1429     private void showServerStatus() {
1430         TextView tv = (TextView) findViewById(R.id.server_status_text);
1431
1432         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1433             tv.setVisibility(View.INVISIBLE);
1434
1435         } else {
1436             tv.setText(mServerStatusText);
1437             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1438             tv.setVisibility(View.VISIBLE);
1439         }
1440
1441     }
1442
1443
1444     /**
1445      * Updates the content and visibility state of the icon and text associated
1446      * to the interactions with the OAuth authorization server.
1447      */
1448     private void showAuthStatus() {
1449         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1450             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1451
1452         } else {
1453             mAuthStatusLayout.setText(mAuthStatusText);
1454             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1455             mAuthStatusLayout.setVisibility(View.VISIBLE);
1456         }
1457     }
1458
1459
1460     private void showRefreshButton() {
1461         mRefreshButton.setVisibility(View.VISIBLE);
1462     }
1463
1464     private void hideRefreshButton() {
1465         mRefreshButton.setVisibility(View.GONE);
1466     }
1467
1468     /**
1469      * Called when the refresh button in the input field for ownCloud host is clicked.
1470      *
1471      * Performs a new check on the URL in the input field.
1472      *
1473      * @param view      Refresh 'button'
1474      */
1475     public void onRefreshClick(View view) {
1476         checkOcServer();
1477     }
1478
1479
1480     /**
1481      * Called when the eye icon in the password field is clicked.
1482      *
1483      * Toggles the visibility of the password in the field.
1484      */
1485     public void onViewPasswordClick() {
1486         int selectionStart = mPasswordInput.getSelectionStart();
1487         int selectionEnd = mPasswordInput.getSelectionEnd();
1488         if (isPasswordVisible()) {
1489             hidePassword();
1490         } else {
1491             showPassword();
1492         }
1493         mPasswordInput.setSelection(selectionStart, selectionEnd);
1494     }
1495
1496
1497     /**
1498      * Called when the checkbox for OAuth authorization is clicked.
1499      *
1500      * Hides or shows the input fields for user & password.
1501      *
1502      * @param view      'View password' 'button'
1503      */
1504     public void onCheckClick(View view) {
1505         CheckBox oAuth2Check = (CheckBox)view;
1506         if (oAuth2Check.isChecked()) {
1507             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1508         } else {
1509             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1510         }
1511         adaptViewAccordingToAuthenticationMethod();
1512     }
1513
1514
1515     /**
1516      * Changes the visibility of input elements depending on
1517      * the current authorization method.
1518      */
1519     private void adaptViewAccordingToAuthenticationMethod () {
1520         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1521             // OAuth 2 authorization
1522             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1523             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1524             mUsernameInput.setVisibility(View.GONE);
1525             mPasswordInput.setVisibility(View.GONE);
1526
1527         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1528             // SAML-based web Single Sign On
1529             mOAuthAuthEndpointText.setVisibility(View.GONE);
1530             mOAuthTokenEndpointText.setVisibility(View.GONE);
1531             mUsernameInput.setVisibility(View.GONE);
1532             mPasswordInput.setVisibility(View.GONE);
1533         } else {
1534             // basic HTTP authorization
1535             mOAuthAuthEndpointText.setVisibility(View.GONE);
1536             mOAuthTokenEndpointText.setVisibility(View.GONE);
1537             mUsernameInput.setVisibility(View.VISIBLE);
1538             mPasswordInput.setVisibility(View.VISIBLE);
1539         }
1540     }
1541
1542     /**
1543      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1544      */
1545     public void onSavedCertificate() {
1546         checkOcServer();
1547     }
1548
1549     /**
1550      * Called from SslValidatorDialog when a new server certificate could not be saved
1551      * when the user requested it.
1552      */
1553     @Override
1554     public void onFailedSavingCertificate() {
1555         showDialog(DIALOG_CERT_NOT_SAVED);
1556     }
1557
1558
1559     /**
1560      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1561      *
1562      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1563      *  or to throw the server test when the only field on screen is the URL input field.
1564      */
1565     @Override
1566     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1567         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1568             if (mOkButton.isEnabled()) {
1569                 mOkButton.performClick();
1570             }
1571
1572         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1573             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1574                 checkOcServer();
1575             }
1576         }
1577         return false;   // always return false to grant that the software keyboard is hidden anyway
1578     }
1579
1580
1581     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1582
1583         private int fuzz = 75;
1584
1585         /**
1586          * {@inheritDoc}
1587          */
1588         @Override
1589         public boolean onTouch(View view, MotionEvent event) {
1590             Drawable rightDrawable = null;
1591             if (view instanceof TextView) {
1592                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1593                 if (drawables.length > 2) {
1594                     rightDrawable = drawables[2];
1595                 }
1596             }
1597             if (rightDrawable != null) {
1598                 final int x = (int) event.getX();
1599                 final int y = (int) event.getY();
1600                 final Rect bounds = rightDrawable.getBounds();
1601                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1602                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1603
1604                     return onDrawableTouch(event);
1605                 }
1606             }
1607             return false;
1608         }
1609
1610         public abstract boolean onDrawableTouch(final MotionEvent event);
1611     }
1612
1613
1614     public void onSamlDialogSuccess(String sessionCookie) {
1615         mAuthToken = sessionCookie;
1616
1617         if (sessionCookie != null && sessionCookie.length() > 0) {
1618             mAuthToken = sessionCookie;
1619
1620             GetRemoteUserNameOperation getUserOperation = new GetRemoteUserNameOperation();
1621             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1622             client.setSsoSessionCookie(mAuthToken);
1623             getUserOperation.execute(client, this, mHandler);
1624         }
1625
1626
1627     }
1628
1629
1630     @Override
1631     public void onSsoFinished(String sessionCookies) {
1632         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1633
1634         if (sessionCookies != null && sessionCookies.length() > 0) {
1635             Log_OC.d(TAG, "Successful SSO - time to save the account");
1636             onSamlDialogSuccess(sessionCookies);
1637             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1638             if (fd != null && fd instanceof SherlockDialogFragment) {
1639                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1640                 if (d != null && d.isShowing()) {
1641                     d.dismiss();
1642                 }
1643             }
1644
1645         } else {
1646             // TODO - show fail
1647             Log_OC.d(TAG, "SSO failed");
1648         }
1649
1650     }
1651
1652     /** Show auth_message
1653      *
1654      * @param message
1655      */
1656     private void showAuthMessage(String message) {
1657        mAuthMessage.setVisibility(View.VISIBLE);
1658        mAuthMessage.setText(message);
1659     }
1660
1661     private void hideAuthMessage() {
1662         mAuthMessage.setVisibility(View.GONE);
1663     }
1664
1665     @Override
1666     public boolean onTouchEvent(MotionEvent event) {
1667         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1668                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1669             checkOcServer();
1670         }
1671         return super.onTouchEvent(event);
1672     }
1673
1674 }