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         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         } else {
 834             updateAuthStatusIconAndText(result);
 835             showAuthStatus();
 836             Log_OC.e(TAG, "Access to user name failed: " + result.getLogMessage());
 837         }
 838
 839     }
 840
 841     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 842         try {
 843             dismissDialog(DIALOG_LOGIN_PROGRESS);
 844         } catch (IllegalArgumentException e) {
 845             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 846         }
 847
 848         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 849         if (result.isIdPRedirection()) {
 850             String url = result.getRedirectedLocation();
 851             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 852
 853             // Show dialog
 854             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 855             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 856
 857             mAuthStatusIcon = 0;
 858             mAuthStatusText = 0;
 859
 860         } else {
 861             mAuthStatusIcon = R.drawable.common_error;
 862             mAuthStatusText = R.string.auth_unsupported_auth_method;
 863
 864         }
 865         showAuthStatus();
 866     }
 867
 868
 869     /**
 870      * Processes the result of the server check performed when the user finishes the enter of the
 871      * server URL.
 872      *
 873      * @param operation     Server check performed.
 874      * @param result        Result of the check.
 875      */
 876     private void onOcServerCheckFinish(GetRemoteStatusOperation operation, RemoteOperationResult result) {
 877         if (operation.equals(mOcServerChkOperation)) {
 878             /// save result state
 879             mServerIsChecked = true;
 880             mServerIsValid = result.isSuccess();
 881             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 882             mOcServerChkOperation = null;
 883
 884             /// update status icon and text
 885             if (mServerIsValid) {
 886                 hideRefreshButton();
 887             } else {
 888                 showRefreshButton();
 889             }
 890             updateServerStatusIconAndText(result);
 891             showServerStatus();
 892
 893             /// very special case (TODO: move to a common place for all the remote operations)
 894             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 895                 mLastSslUntrustedServerResult = result;
 896                 showDialog(DIALOG_SSL_VALIDATOR);
 897             }
 898
 899             /// retrieve discovered version and normalize server URL
 900             mDiscoveredVersion = operation.getDiscoveredVersion();
 901             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 902
 903             /// allow or not the user try to access the server
 904             mOkButton.setEnabled(mServerIsValid);
 905
 906         }   // else nothing ; only the last check operation is considered;
 907         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 908     }
 909
 910
 911     private String normalizeUrl(String url) {
 912         if (url != null && url.length() > 0) {
 913             url = url.trim();
 914             if (!url.toLowerCase().startsWith("http://") &&
 915                     !url.toLowerCase().startsWith("https://")) {
 916                 if (mIsSslConn) {
 917                     url = "https://" + url;
 918                 } else {
 919                     url = "http://" + url;
 920                 }
 921             }
 922
 923             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 924             url = trimUrlWebdav(url);
 925
 926             if (url.endsWith("/")) {
 927                 url = url.substring(0, url.length() - 1);
 928             }
 929
 930         }
 931         return (url != null ? url : "");
 932     }
 933
 934
 935     private String trimUrlWebdav(String url){
 936         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 937             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 938         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 939             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 940         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 941             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 942         }
 943         return (url != null ? url : "");
 944     }
 945
 946
 947     /**
 948      * Chooses the right icon and text to show to the user for the received operation result.
 949      *
 950      * @param result    Result of a remote operation performed in this activity
 951      */
 952     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 953         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 954
 955         switch (result.getCode()) {
 956         case OK_SSL:
 957             mServerStatusIcon = android.R.drawable.ic_secure;
 958             mServerStatusText = R.string.auth_secure_connection;
 959             break;
 960
 961         case OK_NO_SSL:
 962         case OK:
 963             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 964                 mServerStatusText = R.string.auth_connection_established;
 965                 mServerStatusIcon = R.drawable.ic_ok;
 966             } else {
 967                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 968                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 969             }
 970             break;
 971
 972         case NO_NETWORK_CONNECTION:
 973             mServerStatusIcon = R.drawable.no_network;
 974             mServerStatusText = R.string.auth_no_net_conn_title;
 975             break;
 976
 977         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 978             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 979             break;
 980         case BAD_OC_VERSION:
 981             mServerStatusText = R.string.auth_bad_oc_version_title;
 982             break;
 983         case WRONG_CONNECTION:
 984             mServerStatusText = R.string.auth_wrong_connection_title;
 985             break;
 986         case TIMEOUT:
 987             mServerStatusText = R.string.auth_timeout_title;
 988             break;
 989         case INCORRECT_ADDRESS:
 990             mServerStatusText = R.string.auth_incorrect_address_title;
 991             break;
 992         case SSL_ERROR:
 993             mServerStatusText = R.string.auth_ssl_general_error_title;
 994             break;
 995         case UNAUTHORIZED:
 996             mServerStatusText = R.string.auth_unauthorized;
 997             break;
 998         case HOST_NOT_AVAILABLE:
 999             mServerStatusText = R.string.auth_unknown_host_title;
1000             break;
1001         case INSTANCE_NOT_CONFIGURED:
1002             mServerStatusText = R.string.auth_not_configured_title;
1003             break;
1004         case FILE_NOT_FOUND:
1005             mServerStatusText = R.string.auth_incorrect_path_title;
1006             break;
1007         case OAUTH2_ERROR:
1008             mServerStatusText = R.string.auth_oauth_error;
1009             break;
1010         case OAUTH2_ERROR_ACCESS_DENIED:
1011             mServerStatusText = R.string.auth_oauth_error_access_denied;
1012             break;
1013         case UNHANDLED_HTTP_CODE:
1014         case UNKNOWN_ERROR:
1015             mServerStatusText = R.string.auth_unknown_error_title;
1016             break;
1017         default:
1018             mServerStatusText = 0;
1019             mServerStatusIcon = 0;
1020         }
1021     }
1022
1023
1024     /**
1025      * Chooses the right icon and text to show to the user for the received operation result.
1026      *
1027      * @param result    Result of a remote operation performed in this activity
1028      */
1029     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1030         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1031
1032         switch (result.getCode()) {
1033         case OK_SSL:
1034             mAuthStatusIcon = android.R.drawable.ic_secure;
1035             mAuthStatusText = R.string.auth_secure_connection;
1036             break;
1037
1038         case OK_NO_SSL:
1039         case OK:
1040             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1041                 mAuthStatusText = R.string.auth_connection_established;
1042                 mAuthStatusIcon = R.drawable.ic_ok;
1043             } else {
1044                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1045                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1046             }
1047             break;
1048
1049         case NO_NETWORK_CONNECTION:
1050             mAuthStatusIcon = R.drawable.no_network;
1051             mAuthStatusText = R.string.auth_no_net_conn_title;
1052             break;
1053
1054         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1055             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1056             break;
1057         case BAD_OC_VERSION:
1058             mAuthStatusText = R.string.auth_bad_oc_version_title;
1059             break;
1060         case WRONG_CONNECTION:
1061             mAuthStatusText = R.string.auth_wrong_connection_title;
1062             break;
1063         case TIMEOUT:
1064             mAuthStatusText = R.string.auth_timeout_title;
1065             break;
1066         case INCORRECT_ADDRESS:
1067             mAuthStatusText = R.string.auth_incorrect_address_title;
1068             break;
1069         case SSL_ERROR:
1070             mAuthStatusText = R.string.auth_ssl_general_error_title;
1071             break;
1072         case UNAUTHORIZED:
1073             mAuthStatusText = R.string.auth_unauthorized;
1074             break;
1075         case HOST_NOT_AVAILABLE:
1076             mAuthStatusText = R.string.auth_unknown_host_title;
1077             break;
1078         case INSTANCE_NOT_CONFIGURED:
1079             mAuthStatusText = R.string.auth_not_configured_title;
1080             break;
1081         case FILE_NOT_FOUND:
1082             mAuthStatusText = R.string.auth_incorrect_path_title;
1083             break;
1084         case OAUTH2_ERROR:
1085             mAuthStatusText = R.string.auth_oauth_error;
1086             break;
1087         case OAUTH2_ERROR_ACCESS_DENIED:
1088             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1089             break;
1090         case ACCOUNT_NOT_NEW:
1091             mAuthStatusText = R.string.auth_account_not_new;
1092             break;
1093         case ACCOUNT_NOT_THE_SAME:
1094             mAuthStatusText = R.string.auth_account_not_the_same;
1095             break;
1096         case UNHANDLED_HTTP_CODE:
1097         case UNKNOWN_ERROR:
1098             mAuthStatusText = R.string.auth_unknown_error_title;
1099             break;
1100         default:
1101             mAuthStatusText = 0;
1102             mAuthStatusIcon = 0;
1103         }
1104     }
1105
1106
1107     /**
1108      * Processes the result of the request for and access token send
1109      * to an OAuth authorization server.
1110      *
1111      * @param operation     Operation performed requesting the access token.
1112      * @param result        Result of the operation.
1113      */
1114     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1115         try {
1116             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1117         } catch (IllegalArgumentException e) {
1118             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1119         }
1120
1121         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1122         if (result.isSuccess() && webdav_path != null) {
1123             /// be gentle with the user
1124             showDialog(DIALOG_LOGIN_PROGRESS);
1125
1126             /// time to test the retrieved access token on the ownCloud server
1127             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1128             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1129             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1130             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1131             client.setBearerCredentials(mAuthToken);
1132             mAuthCheckOperation.execute(client, this, mHandler);
1133
1134         } else {
1135             updateAuthStatusIconAndText(result);
1136             showAuthStatus();
1137             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1138         }
1139     }
1140
1141
1142     /**
1143      * Processes the result of the access check performed to try the user credentials.
1144      *
1145      * Creates a new account through the AccountManager.
1146      *
1147      * @param operation     Access check performed.
1148      * @param result        Result of the operation.
1149      */
1150     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1151         try {
1152             dismissDialog(DIALOG_LOGIN_PROGRESS);
1153         } catch (IllegalArgumentException e) {
1154             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1155         }
1156
1157         if (result.isSuccess()) {
1158             Log_OC.d(TAG, "Successful access - time to save the account");
1159
1160             boolean success = false;
1161             if (mAction == ACTION_CREATE) {
1162                 success = createAccount();
1163
1164             } else {
1165                 updateToken();
1166                 success = true;
1167             }
1168
1169             if (success) {
1170                 finish();
1171             }
1172
1173         } else if (result.isServerFail() || result.isException()) {
1174             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1175             mServerIsChecked = true;
1176             mServerIsValid = false;
1177             mIsSslConn = false;
1178             mOcServerChkOperation = null;
1179             mDiscoveredVersion = null;
1180             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1181
1182             // update status icon and text
1183             updateServerStatusIconAndText(result);
1184             showServerStatus();
1185             mAuthStatusIcon = 0;
1186             mAuthStatusText = 0;
1187             showAuthStatus();
1188
1189             // update input controls state
1190             showRefreshButton();
1191             mOkButton.setEnabled(false);
1192
1193             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1194             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1195                 mLastSslUntrustedServerResult = result;
1196                 showDialog(DIALOG_SSL_VALIDATOR);
1197             }
1198
1199         } else {    // authorization fail due to client side - probably wrong credentials
1200             updateAuthStatusIconAndText(result);
1201             showAuthStatus();
1202             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1203         }
1204
1205     }
1206
1207
1208     /**
1209      * Sets the proper response to get that the Account Authenticator that started this activity saves
1210      * a new authorization token for mAccount.
1211      */
1212     private void updateToken() {
1213         Bundle response = new Bundle();
1214         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1215         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1216
1217         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1218             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1219             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1220             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1221
1222         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1223
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 {
1229             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1230             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1231         }
1232         setAccountAuthenticatorResult(response);
1233
1234     }
1235
1236
1237     /**
1238      * Creates a new account through the Account Authenticator that started this activity.
1239      *
1240      * This makes the account permanent.
1241      *
1242      * TODO Decide how to name the OAuth accounts
1243      */
1244     private boolean createAccount() {
1245         /// create and save new ownCloud account
1246         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1247         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1248
1249         Uri uri = Uri.parse(mHostBaseUrl);
1250         String username = mUsernameInput.getText().toString().trim();
1251         if (isOAuth) {
1252             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1253         }
1254         String accountName = username + "@" + uri.getHost();
1255         if (uri.getPort() >= 0) {
1256             accountName += ":" + uri.getPort();
1257         }
1258         mAccount = new Account(accountName, MainApp.getAccountType());
1259         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1260             // fail - not a new account, but an existing one; disallow
1261             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1262             updateAuthStatusIconAndText(result);
1263             showAuthStatus();
1264             Log_OC.d(TAG, result.getLogMessage());
1265             return false;
1266
1267         } else {
1268
1269             if (isOAuth || isSaml) {
1270                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1271             } else {
1272                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1273             }
1274
1275             /// add the new account as default in preferences, if there is none already
1276             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1277             if (defaultAccount == null) {
1278                 SharedPreferences.Editor editor = PreferenceManager
1279                         .getDefaultSharedPreferences(this).edit();
1280                 editor.putString("select_oc_account", accountName);
1281                 editor.commit();
1282             }
1283
1284             /// prepare result to return to the Authenticator
1285             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1286             final Intent intent = new Intent();
1287             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1288             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1289             /*if (!isOAuth)
1290                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1291             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1292             if (isOAuth || isSaml) {
1293                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1294             }
1295             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1296             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_VERSION,         mDiscoveredVersion.getVersion());
1297             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_VERSION_STRING,  mDiscoveredVersion.getVersionString());
1298             mAccountMgr.setUserData(mAccount, Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1299
1300             if (isSaml) {
1301                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1302             } else if (isOAuth) {
1303                 mAccountMgr.setUserData(mAccount, Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1304             }
1305
1306             setAccountAuthenticatorResult(intent.getExtras());
1307             setResult(RESULT_OK, intent);
1308
1309             return true;
1310         }
1311     }
1312
1313
1314     /**
1315      * {@inheritDoc}
1316      *
1317      * Necessary to update the contents of the SSL Dialog
1318      *
1319      * TODO move to some common place for all possible untrusted SSL failures
1320      */
1321     @Override
1322     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1323         switch (id) {
1324         case DIALOG_LOGIN_PROGRESS:
1325         case DIALOG_CERT_NOT_SAVED:
1326         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1327             break;
1328         case DIALOG_SSL_VALIDATOR: {
1329             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1330             break;
1331         }
1332         default:
1333             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1334         }
1335     }
1336
1337
1338     /**
1339      * {@inheritDoc}
1340      */
1341     @Override
1342     protected Dialog onCreateDialog(int id) {
1343         Dialog dialog = null;
1344         switch (id) {
1345         case DIALOG_LOGIN_PROGRESS: {
1346             /// simple progress dialog
1347             ProgressDialog working_dialog = new ProgressDialog(this);
1348             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1349             working_dialog.setIndeterminate(true);
1350             working_dialog.setCancelable(true);
1351             working_dialog
1352             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1353                 @Override
1354                 public void onCancel(DialogInterface dialog) {
1355                     /// TODO study if this is enough
1356                     Log_OC.i(TAG, "Login canceled");
1357                     if (mOperationThread != null) {
1358                         mOperationThread.interrupt();
1359                         finish();
1360                     }
1361                 }
1362             });
1363             dialog = working_dialog;
1364             break;
1365         }
1366         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1367             ProgressDialog working_dialog = new ProgressDialog(this);
1368             working_dialog.setMessage(String.format("Getting authorization"));
1369             working_dialog.setIndeterminate(true);
1370             working_dialog.setCancelable(true);
1371             working_dialog
1372             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1373                 @Override
1374                 public void onCancel(DialogInterface dialog) {
1375                     Log_OC.i(TAG, "Login canceled");
1376                     finish();
1377                 }
1378             });
1379             dialog = working_dialog;
1380             break;
1381         }
1382         case DIALOG_SSL_VALIDATOR: {
1383             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1384             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1385             break;
1386         }
1387         case DIALOG_CERT_NOT_SAVED: {
1388             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1389             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1390             builder.setCancelable(false);
1391             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1392                 @Override
1393                 public void onClick(DialogInterface dialog, int which) {
1394                     dialog.dismiss();
1395                 };
1396             });
1397             dialog = builder.create();
1398             break;
1399         }
1400         default:
1401             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1402         }
1403         return dialog;
1404     }
1405
1406
1407     /**
1408      * Starts and activity to open the 'new account' page in the ownCloud web site
1409      *
1410      * @param view      'Account register' button
1411      */
1412     public void onRegisterClick(View view) {
1413         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1414         setResult(RESULT_CANCELED);
1415         startActivity(register);
1416     }
1417
1418
1419     /**
1420      * Updates the content and visibility state of the icon and text associated
1421      * to the last check on the ownCloud server.
1422      */
1423     private void showServerStatus() {
1424         TextView tv = (TextView) findViewById(R.id.server_status_text);
1425
1426         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1427             tv.setVisibility(View.INVISIBLE);
1428
1429         } else {
1430             tv.setText(mServerStatusText);
1431             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1432             tv.setVisibility(View.VISIBLE);
1433         }
1434
1435     }
1436
1437
1438     /**
1439      * Updates the content and visibility state of the icon and text associated
1440      * to the interactions with the OAuth authorization server.
1441      */
1442     private void showAuthStatus() {
1443         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1444             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1445
1446         } else {
1447             mAuthStatusLayout.setText(mAuthStatusText);
1448             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1449             mAuthStatusLayout.setVisibility(View.VISIBLE);
1450         }
1451     }
1452
1453
1454     private void showRefreshButton() {
1455         mRefreshButton.setVisibility(View.VISIBLE);
1456     }
1457
1458     private void hideRefreshButton() {
1459         mRefreshButton.setVisibility(View.GONE);
1460     }
1461
1462     /**
1463      * Called when the refresh button in the input field for ownCloud host is clicked.
1464      *
1465      * Performs a new check on the URL in the input field.
1466      *
1467      * @param view      Refresh 'button'
1468      */
1469     public void onRefreshClick(View view) {
1470         checkOcServer();
1471     }
1472
1473
1474     /**
1475      * Called when the eye icon in the password field is clicked.
1476      *
1477      * Toggles the visibility of the password in the field.
1478      */
1479     public void onViewPasswordClick() {
1480         int selectionStart = mPasswordInput.getSelectionStart();
1481         int selectionEnd = mPasswordInput.getSelectionEnd();
1482         if (isPasswordVisible()) {
1483             hidePassword();
1484         } else {
1485             showPassword();
1486         }
1487         mPasswordInput.setSelection(selectionStart, selectionEnd);
1488     }
1489
1490
1491     /**
1492      * Called when the checkbox for OAuth authorization is clicked.
1493      *
1494      * Hides or shows the input fields for user & password.
1495      *
1496      * @param view      'View password' 'button'
1497      */
1498     public void onCheckClick(View view) {
1499         CheckBox oAuth2Check = (CheckBox)view;
1500         if (oAuth2Check.isChecked()) {
1501             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1502         } else {
1503             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1504         }
1505         adaptViewAccordingToAuthenticationMethod();
1506     }
1507
1508
1509     /**
1510      * Changes the visibility of input elements depending on
1511      * the current authorization method.
1512      */
1513     private void adaptViewAccordingToAuthenticationMethod () {
1514         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1515             // OAuth 2 authorization
1516             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1517             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1518             mUsernameInput.setVisibility(View.GONE);
1519             mPasswordInput.setVisibility(View.GONE);
1520
1521         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1522             // SAML-based web Single Sign On
1523             mOAuthAuthEndpointText.setVisibility(View.GONE);
1524             mOAuthTokenEndpointText.setVisibility(View.GONE);
1525             mUsernameInput.setVisibility(View.GONE);
1526             mPasswordInput.setVisibility(View.GONE);
1527         } else {
1528             // basic HTTP authorization
1529             mOAuthAuthEndpointText.setVisibility(View.GONE);
1530             mOAuthTokenEndpointText.setVisibility(View.GONE);
1531             mUsernameInput.setVisibility(View.VISIBLE);
1532             mPasswordInput.setVisibility(View.VISIBLE);
1533         }
1534     }
1535
1536     /**
1537      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1538      */
1539     public void onSavedCertificate() {
1540         checkOcServer();
1541     }
1542
1543     /**
1544      * Called from SslValidatorDialog when a new server certificate could not be saved
1545      * when the user requested it.
1546      */
1547     @Override
1548     public void onFailedSavingCertificate() {
1549         showDialog(DIALOG_CERT_NOT_SAVED);
1550     }
1551
1552
1553     /**
1554      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1555      *
1556      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1557      *  or to throw the server test when the only field on screen is the URL input field.
1558      */
1559     @Override
1560     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1561         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1562             if (mOkButton.isEnabled()) {
1563                 mOkButton.performClick();
1564             }
1565
1566         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1567             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1568                 checkOcServer();
1569             }
1570         }
1571         return false;   // always return false to grant that the software keyboard is hidden anyway
1572     }
1573
1574
1575     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1576
1577         private int fuzz = 75;
1578
1579         /**
1580          * {@inheritDoc}
1581          */
1582         @Override
1583         public boolean onTouch(View view, MotionEvent event) {
1584             Drawable rightDrawable = null;
1585             if (view instanceof TextView) {
1586                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1587                 if (drawables.length > 2) {
1588                     rightDrawable = drawables[2];
1589                 }
1590             }
1591             if (rightDrawable != null) {
1592                 final int x = (int) event.getX();
1593                 final int y = (int) event.getY();
1594                 final Rect bounds = rightDrawable.getBounds();
1595                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1596                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1597
1598                     return onDrawableTouch(event);
1599                 }
1600             }
1601             return false;
1602         }
1603
1604         public abstract boolean onDrawableTouch(final MotionEvent event);
1605     }
1606
1607
1608     public void onSamlDialogSuccess(String sessionCookie) {
1609         mAuthToken = sessionCookie;
1610
1611         if (sessionCookie != null && sessionCookie.length() > 0) {
1612             mAuthToken = sessionCookie;
1613
1614             GetRemoteUserNameOperation getUserOperation = new GetRemoteUserNameOperation();
1615             OwnCloudClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1616             client.setSsoSessionCookie(mAuthToken);
1617             getUserOperation.execute(client, this, mHandler);
1618         }
1619
1620
1621     }
1622
1623
1624     @Override
1625     public void onSsoFinished(String sessionCookies) {
1626         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1627
1628         if (sessionCookies != null && sessionCookies.length() > 0) {
1629             Log_OC.d(TAG, "Successful SSO - time to save the account");
1630             onSamlDialogSuccess(sessionCookies);
1631             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1632             if (fd != null && fd instanceof SherlockDialogFragment) {
1633                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1634                 if (d != null && d.isShowing()) {
1635                     d.dismiss();
1636                 }
1637             }
1638
1639         } else {
1640             // TODO - show fail
1641             Log_OC.d(TAG, "SSO failed");
1642         }
1643
1644     }
1645
1646     /** Show auth_message
1647      *
1648      * @param message
1649      */
1650     private void showAuthMessage(String message) {
1651        mAuthMessage.setVisibility(View.VISIBLE);
1652        mAuthMessage.setText(message);
1653     }
1654
1655     private void hideAuthMessage() {
1656         mAuthMessage.setVisibility(View.GONE);
1657     }
1658
1659     @Override
1660     public boolean onTouchEvent(MotionEvent event) {
1661         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1662                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1663             checkOcServer();
1664         }
1665         return super.onTouchEvent(event);
1666     }
1667
1668 }