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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.DialogInterface;
  27 import android.content.Intent;
  28 import android.content.SharedPreferences;
  29 import android.graphics.Rect;
  30 import android.graphics.drawable.Drawable;
  31 import android.net.Uri;
  32 import android.os.Bundle;
  33 import android.os.Handler;
  34 import android.preference.PreferenceManager;
  35 import android.support.v4.app.Fragment;
  36 import android.text.Editable;
  37 import android.text.InputType;
  38 import android.text.TextWatcher;
  39 import android.view.KeyEvent;
  40 import android.view.MotionEvent;
  41 import android.view.View;
  42 import android.view.View.OnFocusChangeListener;
  43 import android.view.View.OnTouchListener;
  44 import android.view.Window;
  45 import android.view.inputmethod.EditorInfo;
  46 import android.widget.Button;
  47 import android.widget.CheckBox;
  48 import android.widget.EditText;
  49 import android.widget.TextView;
  50 import android.widget.TextView.OnEditorActionListener;
  51
  52 import com.actionbarsherlock.app.SherlockDialogFragment;
  53 import com.owncloud.android.MainApp;
  54 import com.owncloud.android.R;
  55 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  56 import com.owncloud.android.oc_framework.accounts.AccountTypeUtils;
  57 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  58 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  59 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  62 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  63 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  64 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  65 import com.owncloud.android.oc_framework.operations.remote.ExistenceCheckRemoteOperation;
  66 import com.owncloud.android.oc_framework.operations.remote.GetUserNameRemoteOperation;
  67 import com.owncloud.android.oc_framework.operations.remote.OwnCloudServerCheckOperation;
  68 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  71 import com.owncloud.android.utils.Log_OC;
  72 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  73
  74 /**
  75  * This Activity is used to add an ownCloud account to the App
  76  *
  77  * @author Bartek Przybylski
  78  * @author David A. Velasco
  79  */
  80 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  81 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  82
  83     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  84
  85     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  86     public static final String EXTRA_USER_NAME = "USER_NAME";
  87     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  88     public static final String EXTRA_ACTION = "ACTION";
  89     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  90
  91     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  92     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  93     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  94     private static final String KEY_OC_VERSION = "OC_VERSION";
  95     private static final String KEY_ACCOUNT = "ACCOUNT";
  96     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  97     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  98     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  99     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 100     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 101     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 102     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 103     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 104     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 105     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 106     private static final String KEY_IS_SHARED_SUPPORTED = "KEY_IS_SHARE_SUPPORTED";
 107
 108     private static final String AUTH_ON = "on";
 109     private static final String AUTH_OFF = "off";
 110     private static final String AUTH_OPTIONAL = "optional";
 111
 112     private static final int DIALOG_LOGIN_PROGRESS = 0;
 113     private static final int DIALOG_SSL_VALIDATOR = 1;
 114     private static final int DIALOG_CERT_NOT_SAVED = 2;
 115     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 116
 117     public static final byte ACTION_CREATE = 0;
 118     public static final byte ACTION_UPDATE_TOKEN = 1;
 119
 120     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 121
 122     private String mHostBaseUrl;
 123     private OwnCloudVersion mDiscoveredVersion;
 124     private boolean mIsSharedSupported;
 125
 126     private String mAuthMessageText;
 127     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 128     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 129     private int mAuthStatusText, mAuthStatusIcon;
 130     private TextView mAuthStatusLayout;
 131
 132     private final Handler mHandler = new Handler();
 133     private Thread mOperationThread;
 134     private OwnCloudServerCheckOperation mOcServerChkOperation;
 135     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 136     private RemoteOperationResult mLastSslUntrustedServerResult;
 137
 138     private Uri mNewCapturedUriFromOAuth2Redirection;
 139
 140     private AccountManager mAccountMgr;
 141     private boolean mJustCreated;
 142     private byte mAction;
 143     private Account mAccount;
 144
 145     private TextView mAuthMessage;
 146
 147     private EditText mHostUrlInput;
 148     private boolean mHostUrlInputEnabled;
 149     private View mRefreshButton;
 150
 151     private String mAuthTokenType;
 152
 153     private EditText mUsernameInput;
 154     private EditText mPasswordInput;
 155
 156     private CheckBox mOAuth2Check;
 157
 158     private TextView mOAuthAuthEndpointText;
 159     private TextView mOAuthTokenEndpointText;
 160
 161     private SamlWebViewDialog mSamlDialog;
 162
 163     private View mOkButton;
 164
 165     private String mAuthToken;
 166
 167     private boolean mResumed; // Control if activity is resumed
 168
 169
 170     /**
 171      * {@inheritDoc}
 172      *
 173      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 174      */
 175     @Override
 176     protected void onCreate(Bundle savedInstanceState) {
 177         super.onCreate(savedInstanceState);
 178         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 179
 180         /// set view and get references to view elements
 181         setContentView(R.layout.account_setup);
 182         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 183         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 184         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 185         mUsernameInput = (EditText) findViewById(R.id.account_username);
 186         mPasswordInput = (EditText) findViewById(R.id.account_password);
 187         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 188         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 189         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 190         mOkButton = findViewById(R.id.buttonOK);
 191         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 192
 193         /// set Host Url Input Enabled
 194         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 195
 196         /// set visibility of link for new users
 197         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 198         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 199         if (welcomeLink != null) {
 200             if (accountRegisterVisibility) {
 201                 welcomeLink.setVisibility(View.VISIBLE);
 202                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 203             } else {
 204                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 205             }
 206         }
 207
 208         /// initialization
 209         mAccountMgr = AccountManager.get(this);
 210         mNewCapturedUriFromOAuth2Redirection = null;
 211         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 212         mAccount = null;
 213         mHostBaseUrl = "";
 214         boolean refreshButtonEnabled = false;
 215
 216         // URL input configuration applied
 217         if (!mHostUrlInputEnabled)
 218         {
 219             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 220             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 221
 222         } else {
 223             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 224         }
 225
 226         if (savedInstanceState == null) {
 227             mResumed = false;
 228             /// connection state and info
 229             mAuthMessageVisibility = View.GONE;
 230             mServerStatusText = mServerStatusIcon = 0;
 231             mServerIsValid = false;
 232             mServerIsChecked = false;
 233             mIsSslConn = false;
 234             mAuthStatusText = mAuthStatusIcon = 0;
 235             mIsSharedSupported = false;
 236
 237             /// retrieve extras from intent
 238             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 239             if (mAccount != null) {
 240                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 241                 if (ocVersion != null) {
 242                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 243                 }
 244                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 245                 mHostUrlInput.setText(mHostBaseUrl);
 246                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 247                 mUsernameInput.setText(userName);
 248             }
 249             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 250             mJustCreated = true;
 251
 252             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 253                 checkOcServer();
 254             }
 255
 256         } else {
 257             mResumed = true;
 258             /// connection state and info
 259             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 260             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 261             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 262             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 263             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 264             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 265             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 266             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 267             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 268             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 269                 showPassword();
 270             }
 271
 272             /// server data
 273             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 274             mIsSharedSupported = savedInstanceState.getBoolean(KEY_IS_SHARED_SUPPORTED, false);
 275             if (ocVersion != null) {
 276                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 277             }
 278             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 279
 280             // account data, if updating
 281             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 282             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 283             if (mAuthTokenType == null) {
 284                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 285
 286             }
 287
 288             // check if server check was interrupted by a configuration change
 289             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 290                 checkOcServer();
 291             }
 292
 293             // refresh button enabled
 294             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 295
 296
 297         }
 298
 299         if (mAuthMessageVisibility== View.VISIBLE) {
 300             showAuthMessage(mAuthMessageText);
 301         }
 302         else {
 303             hideAuthMessage();
 304         }
 305         adaptViewAccordingToAuthenticationMethod();
 306         showServerStatus();
 307         showAuthStatus();
 308
 309         if (mAction == ACTION_UPDATE_TOKEN) {
 310             /// lock things that should not change
 311             mHostUrlInput.setEnabled(false);
 312             mHostUrlInput.setFocusable(false);
 313             mUsernameInput.setEnabled(false);
 314             mUsernameInput.setFocusable(false);
 315             mOAuth2Check.setVisibility(View.GONE);
 316         }
 317
 318         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 319         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 320         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 321
 322         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 323                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 324             mOAuth2Check.setVisibility(View.GONE);
 325         }
 326
 327         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 328
 329         /// bind view elements to listeners and other friends
 330         mHostUrlInput.setOnFocusChangeListener(this);
 331         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 332         mHostUrlInput.setOnEditorActionListener(this);
 333         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 334
 335             @Override
 336             public void afterTextChanged(Editable s) {
 337                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 338                     mOkButton.setEnabled(false);
 339                 }
 340             }
 341
 342             @Override
 343             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 344             }
 345
 346             @Override
 347             public void onTextChanged(CharSequence s, int start, int before, int count) {
 348                 if (!mResumed) {
 349                     mAuthStatusIcon = 0;
 350                     mAuthStatusText = 0;
 351                     showAuthStatus();
 352                 }
 353                 mResumed = false;
 354             }
 355         });
 356
 357         mPasswordInput.setOnFocusChangeListener(this);
 358         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 359         mPasswordInput.setOnEditorActionListener(this);
 360         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 361             @Override
 362             public boolean onDrawableTouch(final MotionEvent event) {
 363                 if (event.getAction() == MotionEvent.ACTION_UP) {
 364                     AuthenticatorActivity.this.onViewPasswordClick();
 365                 }
 366                 return true;
 367             }
 368         });
 369
 370         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 371             @Override
 372             public boolean onTouch(View view, MotionEvent event) {
 373                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 374                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 375                             mHostUrlInput.hasFocus()) {
 376                         checkOcServer();
 377                     }
 378                 }
 379                 return false;
 380             }
 381         });
 382     }
 383
 384
 385
 386     private void initAuthorizationMethod() {
 387         boolean oAuthRequired = false;
 388         boolean samlWebSsoRequired = false;
 389
 390         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 391         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 392
 393         // TODO could be a good moment to validate the received token type, if not null
 394
 395         if (mAuthTokenType == null) {
 396             if (mAccount != null) {
 397                 /// same authentication method than the one used to create the account to update
 398                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 399                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 400
 401             } else {
 402                 /// use the one set in setup.xml
 403                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 404                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 405             }
 406             if (oAuthRequired) {
 407                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 408             } else if (samlWebSsoRequired) {
 409                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 410             } else {
 411                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 412             }
 413         }
 414
 415         if (mAccount != null) {
 416             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 417             mUsernameInput.setText(userName);
 418         }
 419
 420         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 421
 422     }
 423
 424     /**
 425      * Saves relevant state before {@link #onPause()}
 426      *
 427      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 428      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 429      *
 430      * See {@link #loadSavedInstanceState(Bundle)}
 431      */
 432     @Override
 433     protected void onSaveInstanceState(Bundle outState) {
 434         super.onSaveInstanceState(outState);
 435
 436         /// connection state and info
 437         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 438         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 439         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 440         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 441         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 442         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 443         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 444         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 445         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 446         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 447         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 448
 449         /// server data
 450         if (mDiscoveredVersion != null) {
 451             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 452         }
 453         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 454         outState.putBoolean(KEY_IS_SHARED_SUPPORTED, mIsSharedSupported);
 455
 456         /// account data, if updating
 457         if (mAccount != null) {
 458             outState.putParcelable(KEY_ACCOUNT, mAccount);
 459         }
 460         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 461
 462         // refresh button enabled
 463         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 464
 465
 466     }
 467
 468
 469     /**
 470      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 471      * is caught here.
 472      *
 473      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 474      * AndroidManifest.xml file.
 475      */
 476     @Override
 477     protected void onNewIntent (Intent intent) {
 478         Log_OC.d(TAG, "onNewIntent()");
 479         Uri data = intent.getData();
 480         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 481             mNewCapturedUriFromOAuth2Redirection = data;
 482         }
 483     }
 484
 485
 486     /**
 487      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 488      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 489      */
 490     @Override
 491     protected void onResume() {
 492         super.onResume();
 493         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 494             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 495                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 496                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 497             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 498                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 499                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 500             } else {
 501                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 502                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 503             }
 504         }
 505
 506         if (mNewCapturedUriFromOAuth2Redirection != null) {
 507             getOAuth2AccessTokenFromCapturedRedirection();
 508         }
 509
 510         mJustCreated = false;
 511
 512     }
 513
 514
 515     /**
 516      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 517      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 518      */
 519     private void getOAuth2AccessTokenFromCapturedRedirection() {
 520         /// Parse data from OAuth redirection
 521         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 522         mNewCapturedUriFromOAuth2Redirection = null;
 523
 524         /// Showing the dialog with instructions for the user.
 525         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 526
 527         /// GET ACCESS TOKEN to the oAuth server
 528         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 529                 getString(R.string.oauth2_redirect_uri),
 530                 getString(R.string.oauth2_grant_type),
 531                 queryParameters);
 532         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 533         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 534         operation.execute(client, this, mHandler);
 535     }
 536
 537
 538
 539     /**
 540      * Handles the change of focus on the text inputs for the server URL and the password
 541      */
 542     public void onFocusChange(View view, boolean hasFocus) {
 543         if (view.getId() == R.id.hostUrlInput) {
 544             if (!hasFocus) {
 545                 onUrlInputFocusLost((TextView) view);
 546             }
 547             else {
 548                 hideRefreshButton();
 549             }
 550
 551         } else if (view.getId() == R.id.account_password) {
 552             onPasswordFocusChanged((TextView) view, hasFocus);
 553         }
 554     }
 555
 556
 557     /**
 558      * Handles changes in focus on the text input for the server URL.
 559      *
 560      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 561      * other field. The operation to check the existence of the server in the entered URL is
 562      * started.
 563      *
 564      * When hasFocus:    user 'comes back' to write again the server URL.
 565      *
 566      * @param hostInput     TextView with the URL input field receiving the change of focus.
 567      */
 568     private void onUrlInputFocusLost(TextView hostInput) {
 569         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 570             checkOcServer();
 571         } else {
 572             mOkButton.setEnabled(mServerIsValid);
 573             if (!mServerIsValid) {
 574                 showRefreshButton();
 575             }
 576         }
 577     }
 578
 579
 580     private void checkOcServer() {
 581         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 582
 583         if (!mHostUrlInputEnabled){
 584             uri = getString(R.string.server_url);
 585         }
 586
 587         mServerIsValid = false;
 588         mServerIsChecked = false;
 589         mIsSharedSupported = false;
 590         mOkButton.setEnabled(false);
 591         mDiscoveredVersion = null;
 592         hideRefreshButton();
 593         if (uri.length() != 0) {
 594             mServerStatusText = R.string.auth_testing_connection;
 595             mServerStatusIcon = R.drawable.progress_small;
 596             showServerStatus();
 597             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 598             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 599             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 600         } else {
 601             mServerStatusText = 0;
 602             mServerStatusIcon = 0;
 603             showServerStatus();
 604         }
 605     }
 606
 607
 608     /**
 609      * Handles changes in focus on the text input for the password (basic authorization).
 610      *
 611      * When (hasFocus), the button to toggle password visibility is shown.
 612      *
 613      * When (!hasFocus), the button is made invisible and the password is hidden.
 614      *
 615      * @param passwordInput    TextView with the password input field receiving the change of focus.
 616      * @param hasFocus          'True' if focus is received, 'false' if is lost
 617      */
 618     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 619         if (hasFocus) {
 620             showViewPasswordButton();
 621         } else {
 622             hidePassword();
 623             hidePasswordButton();
 624         }
 625     }
 626
 627
 628     private void showViewPasswordButton() {
 629         //int drawable = android.R.drawable.ic_menu_view;
 630         int drawable = R.drawable.ic_view;
 631         if (isPasswordVisible()) {
 632             //drawable = android.R.drawable.ic_secure;
 633             drawable = R.drawable.ic_hide;
 634         }
 635         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 636     }
 637
 638     private boolean isPasswordVisible() {
 639         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 640     }
 641
 642     private void hidePasswordButton() {
 643         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 644     }
 645
 646     private void showPassword() {
 647         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 648         showViewPasswordButton();
 649     }
 650
 651     private void hidePassword() {
 652         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 653         showViewPasswordButton();
 654     }
 655
 656
 657     /**
 658      * Cancels the authenticator activity
 659      *
 660      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 661      *
 662      * This method is bound in the layout/acceoun_setup.xml resource file.
 663      *
 664      * @param view      Cancel button
 665      */
 666     public void onCancelClick(View view) {
 667         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 668         finish();
 669     }
 670
 671
 672
 673     /**
 674      * Checks the credentials of the user in the root of the ownCloud server
 675      * before creating a new local account.
 676      *
 677      * For basic authorization, a check of existence of the root folder is
 678      * performed.
 679      *
 680      * For OAuth, starts the flow to get an access token; the credentials test
 681      * is postponed until it is available.
 682      *
 683      * IMPORTANT ENTRY POINT 4
 684      *
 685      * @param view      OK button
 686      */
 687     public void onOkClick(View view) {
 688         // this check should be unnecessary
 689         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 690             mServerStatusIcon = R.drawable.common_error;
 691             mServerStatusText = R.string.auth_wtf_reenter_URL;
 692             showServerStatus();
 693             mOkButton.setEnabled(false);
 694             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 695             return;
 696         }
 697
 698         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 699             startOauthorization();
 700         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 701             startSamlBasedFederatedSingleSignOnAuthorization();
 702         } else {
 703             checkBasicAuthorization();
 704         }
 705     }
 706
 707
 708     /**
 709      * Tests the credentials entered by the user performing a check of existence on
 710      * the root folder of the ownCloud server.
 711      */
 712     private void checkBasicAuthorization() {
 713         /// get the path to the root folder through WebDAV from the version server
 714         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 715
 716         /// get basic credentials entered by user
 717         String username = mUsernameInput.getText().toString();
 718         String password = mPasswordInput.getText().toString();
 719
 720         /// be gentle with the user
 721         showDialog(DIALOG_LOGIN_PROGRESS);
 722
 723         /// test credentials accessing the root folder
 724         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 725         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 726         client.setBasicCredentials(username, password);
 727         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 728     }
 729
 730
 731     /**
 732      * Starts the OAuth 'grant type' flow to get an access token, with
 733      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 734      */
 735     private void startOauthorization() {
 736         // be gentle with the user
 737         mAuthStatusIcon = R.drawable.progress_small;
 738         mAuthStatusText = R.string.oauth_login_connection;
 739         showAuthStatus();
 740
 741
 742         // GET AUTHORIZATION request
 743         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 744         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 745         Uri.Builder uriBuilder = uri.buildUpon();
 746         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 747         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 748         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 749         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 750         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 751         uri = uriBuilder.build();
 752         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 753         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 754         startActivity(i);
 755     }
 756
 757
 758     /**
 759      * Starts the Web Single Sign On flow to get access to the root folder
 760      * in the server.
 761      */
 762     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 763         // be gentle with the user
 764         mAuthStatusIcon = R.drawable.progress_small;
 765         mAuthStatusText = R.string.auth_connecting_auth_server;
 766         showAuthStatus();
 767         showDialog(DIALOG_LOGIN_PROGRESS);
 768
 769         /// get the path to the root folder through WebDAV from the version server
 770         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 771
 772         /// test credentials accessing the root folder
 773         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 774         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 775         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 776
 777     }
 778
 779     /**
 780      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 781      *
 782      * Dispatches the operation flow to the right method.
 783      */
 784     @Override
 785     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 786
 787         if (operation instanceof OwnCloudServerCheckOperation) {
 788             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 789
 790         } else if (operation instanceof OAuth2GetAccessToken) {
 791             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 792
 793         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 794             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 795                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 796
 797             } else {
 798                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 799             }
 800         } else if (operation instanceof GetUserNameRemoteOperation) {
 801             onGetUserNameFinish((GetUserNameRemoteOperation) operation, result);
 802
 803         }
 804
 805     }
 806
 807     private void onGetUserNameFinish(GetUserNameRemoteOperation operation, RemoteOperationResult result) {
 808         if (result.isSuccess()) {
 809             boolean success = false;
 810             String username = operation.getUserName();
 811
 812             if ( mAction == ACTION_CREATE) {
 813                 mUsernameInput.setText(username);
 814                 success = createAccount();
 815             } else {
 816
 817                 if (!mUsernameInput.getText().toString().equals(username)) {
 818                     // fail - not a new account, but an existing one; disallow
 819                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 820                     updateAuthStatusIconAndText(result);
 821                     showAuthStatus();
 822                     Log_OC.d(TAG, result.getLogMessage());
 823                 } else {
 824                   updateToken();
 825                   success = true;
 826                 }
 827             }
 828
 829             if (success)
 830                 finish();
 831         }
 832
 833     }
 834
 835     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 836         try {
 837             dismissDialog(DIALOG_LOGIN_PROGRESS);
 838         } catch (IllegalArgumentException e) {
 839             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 840         }
 841
 842         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 843         if (result.isIdPRedirection()) {
 844             String url = result.getRedirectedLocation();
 845             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 846
 847             // Show dialog
 848             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 849             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 850
 851             mAuthStatusIcon = 0;
 852             mAuthStatusText = 0;
 853
 854         } else {
 855             mAuthStatusIcon = R.drawable.common_error;
 856             mAuthStatusText = R.string.auth_unsupported_auth_method;
 857
 858         }
 859         showAuthStatus();
 860     }
 861
 862
 863     /**
 864      * Processes the result of the server check performed when the user finishes the enter of the
 865      * server URL.
 866      *
 867      * @param operation     Server check performed.
 868      * @param result        Result of the check.
 869      */
 870     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 871         if (operation.equals(mOcServerChkOperation)) {
 872             /// save result state
 873             mServerIsChecked = true;
 874             mServerIsValid = result.isSuccess();
 875             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 876             mOcServerChkOperation = null;
 877
 878             /// update status icon and text
 879             if (mServerIsValid) {
 880                 hideRefreshButton();
 881             } else {
 882                 showRefreshButton();
 883             }
 884             updateServerStatusIconAndText(result);
 885             showServerStatus();
 886
 887             /// very special case (TODO: move to a common place for all the remote operations)
 888             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 889                 mLastSslUntrustedServerResult = result;
 890                 showDialog(DIALOG_SSL_VALIDATOR);
 891             }
 892
 893             /// retrieve discovered version and normalize server URL
 894             mDiscoveredVersion = operation.getDiscoveredVersion();
 895             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 896
 897             /// allow or not the user try to access the server
 898             mOkButton.setEnabled(mServerIsValid);
 899
 900             /// retrieve if is supported the Share API
 901             mIsSharedSupported = operation.isSharedSupported();
 902
 903         }   // else nothing ; only the last check operation is considered;
 904         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 905     }
 906
 907
 908     private String normalizeUrl(String url) {
 909         if (url != null && url.length() > 0) {
 910             url = url.trim();
 911             if (!url.toLowerCase().startsWith("http://") &&
 912                     !url.toLowerCase().startsWith("https://")) {
 913                 if (mIsSslConn) {
 914                     url = "https://" + url;
 915                 } else {
 916                     url = "http://" + url;
 917                 }
 918             }
 919
 920             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 921             url = trimUrlWebdav(url);
 922
 923             if (url.endsWith("/")) {
 924                 url = url.substring(0, url.length() - 1);
 925             }
 926
 927         }
 928         return (url != null ? url : "");
 929     }
 930
 931
 932     private String trimUrlWebdav(String url){
 933         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 934             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 935         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 936             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 937         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 938             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 939         }
 940         return (url != null ? url : "");
 941     }
 942
 943
 944     /**
 945      * Chooses the right icon and text to show to the user for the received operation result.
 946      *
 947      * @param result    Result of a remote operation performed in this activity
 948      */
 949     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 950         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 951
 952         switch (result.getCode()) {
 953         case OK_SSL:
 954             mServerStatusIcon = android.R.drawable.ic_secure;
 955             mServerStatusText = R.string.auth_secure_connection;
 956             break;
 957
 958         case OK_NO_SSL:
 959         case OK:
 960             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 961                 mServerStatusText = R.string.auth_connection_established;
 962                 mServerStatusIcon = R.drawable.ic_ok;
 963             } else {
 964                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 965                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 966             }
 967             break;
 968
 969         case NO_NETWORK_CONNECTION:
 970             mServerStatusIcon = R.drawable.no_network;
 971             mServerStatusText = R.string.auth_no_net_conn_title;
 972             break;
 973
 974         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 975             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 976             break;
 977         case BAD_OC_VERSION:
 978             mServerStatusText = R.string.auth_bad_oc_version_title;
 979             break;
 980         case WRONG_CONNECTION:
 981             mServerStatusText = R.string.auth_wrong_connection_title;
 982             break;
 983         case TIMEOUT:
 984             mServerStatusText = R.string.auth_timeout_title;
 985             break;
 986         case INCORRECT_ADDRESS:
 987             mServerStatusText = R.string.auth_incorrect_address_title;
 988             break;
 989         case SSL_ERROR:
 990             mServerStatusText = R.string.auth_ssl_general_error_title;
 991             break;
 992         case UNAUTHORIZED:
 993             mServerStatusText = R.string.auth_unauthorized;
 994             break;
 995         case HOST_NOT_AVAILABLE:
 996             mServerStatusText = R.string.auth_unknown_host_title;
 997             break;
 998         case INSTANCE_NOT_CONFIGURED:
 999             mServerStatusText = R.string.auth_not_configured_title;
1000             break;
1001         case FILE_NOT_FOUND:
1002             mServerStatusText = R.string.auth_incorrect_path_title;
1003             break;
1004         case OAUTH2_ERROR:
1005             mServerStatusText = R.string.auth_oauth_error;
1006             break;
1007         case OAUTH2_ERROR_ACCESS_DENIED:
1008             mServerStatusText = R.string.auth_oauth_error_access_denied;
1009             break;
1010         case UNHANDLED_HTTP_CODE:
1011         case UNKNOWN_ERROR:
1012             mServerStatusText = R.string.auth_unknown_error_title;
1013             break;
1014         default:
1015             mServerStatusText = 0;
1016             mServerStatusIcon = 0;
1017         }
1018     }
1019
1020
1021     /**
1022      * Chooses the right icon and text to show to the user for the received operation result.
1023      *
1024      * @param result    Result of a remote operation performed in this activity
1025      */
1026     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1027         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1028
1029         switch (result.getCode()) {
1030         case OK_SSL:
1031             mAuthStatusIcon = android.R.drawable.ic_secure;
1032             mAuthStatusText = R.string.auth_secure_connection;
1033             break;
1034
1035         case OK_NO_SSL:
1036         case OK:
1037             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1038                 mAuthStatusText = R.string.auth_connection_established;
1039                 mAuthStatusIcon = R.drawable.ic_ok;
1040             } else {
1041                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1042                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1043             }
1044             break;
1045
1046         case NO_NETWORK_CONNECTION:
1047             mAuthStatusIcon = R.drawable.no_network;
1048             mAuthStatusText = R.string.auth_no_net_conn_title;
1049             break;
1050
1051         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1052             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1053             break;
1054         case BAD_OC_VERSION:
1055             mAuthStatusText = R.string.auth_bad_oc_version_title;
1056             break;
1057         case WRONG_CONNECTION:
1058             mAuthStatusText = R.string.auth_wrong_connection_title;
1059             break;
1060         case TIMEOUT:
1061             mAuthStatusText = R.string.auth_timeout_title;
1062             break;
1063         case INCORRECT_ADDRESS:
1064             mAuthStatusText = R.string.auth_incorrect_address_title;
1065             break;
1066         case SSL_ERROR:
1067             mAuthStatusText = R.string.auth_ssl_general_error_title;
1068             break;
1069         case UNAUTHORIZED:
1070             mAuthStatusText = R.string.auth_unauthorized;
1071             break;
1072         case HOST_NOT_AVAILABLE:
1073             mAuthStatusText = R.string.auth_unknown_host_title;
1074             break;
1075         case INSTANCE_NOT_CONFIGURED:
1076             mAuthStatusText = R.string.auth_not_configured_title;
1077             break;
1078         case FILE_NOT_FOUND:
1079             mAuthStatusText = R.string.auth_incorrect_path_title;
1080             break;
1081         case OAUTH2_ERROR:
1082             mAuthStatusText = R.string.auth_oauth_error;
1083             break;
1084         case OAUTH2_ERROR_ACCESS_DENIED:
1085             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1086             break;
1087         case ACCOUNT_NOT_NEW:
1088             mAuthStatusText = R.string.auth_account_not_new;
1089             break;
1090         case ACCOUNT_NOT_THE_SAME:
1091             mAuthStatusText = R.string.auth_account_not_the_same;
1092             break;
1093         case UNHANDLED_HTTP_CODE:
1094         case UNKNOWN_ERROR:
1095             mAuthStatusText = R.string.auth_unknown_error_title;
1096             break;
1097         default:
1098             mAuthStatusText = 0;
1099             mAuthStatusIcon = 0;
1100         }
1101     }
1102
1103
1104     /**
1105      * Processes the result of the request for and access token send
1106      * to an OAuth authorization server.
1107      *
1108      * @param operation     Operation performed requesting the access token.
1109      * @param result        Result of the operation.
1110      */
1111     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1112         try {
1113             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1114         } catch (IllegalArgumentException e) {
1115             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1116         }
1117
1118         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1119         if (result.isSuccess() && webdav_path != null) {
1120             /// be gentle with the user
1121             showDialog(DIALOG_LOGIN_PROGRESS);
1122
1123             /// time to test the retrieved access token on the ownCloud server
1124             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1125             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1126             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1127             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1128             client.setBearerCredentials(mAuthToken);
1129             mAuthCheckOperation.execute(client, this, mHandler);
1130
1131         } else {
1132             updateAuthStatusIconAndText(result);
1133             showAuthStatus();
1134             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1135         }
1136     }
1137
1138
1139     /**
1140      * Processes the result of the access check performed to try the user credentials.
1141      *
1142      * Creates a new account through the AccountManager.
1143      *
1144      * @param operation     Access check performed.
1145      * @param result        Result of the operation.
1146      */
1147     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1148         try {
1149             dismissDialog(DIALOG_LOGIN_PROGRESS);
1150         } catch (IllegalArgumentException e) {
1151             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1152         }
1153
1154         if (result.isSuccess()) {
1155             Log_OC.d(TAG, "Successful access - time to save the account");
1156
1157             boolean success = false;
1158             if (mAction == ACTION_CREATE) {
1159                 success = createAccount();
1160
1161             } else {
1162                 updateToken();
1163                 success = true;
1164             }
1165
1166             if (success) {
1167                 finish();
1168             }
1169
1170         } else if (result.isServerFail() || result.isException()) {
1171             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1172             mServerIsChecked = true;
1173             mServerIsValid = false;
1174             mIsSslConn = false;
1175             mOcServerChkOperation = null;
1176             mDiscoveredVersion = null;
1177             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1178
1179             // update status icon and text
1180             updateServerStatusIconAndText(result);
1181             showServerStatus();
1182             mAuthStatusIcon = 0;
1183             mAuthStatusText = 0;
1184             showAuthStatus();
1185
1186             // update input controls state
1187             showRefreshButton();
1188             mOkButton.setEnabled(false);
1189
1190             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1191             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1192                 mLastSslUntrustedServerResult = result;
1193                 showDialog(DIALOG_SSL_VALIDATOR);
1194             }
1195
1196         } else {    // authorization fail due to client side - probably wrong credentials
1197             updateAuthStatusIconAndText(result);
1198             showAuthStatus();
1199             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1200         }
1201
1202     }
1203
1204
1205     /**
1206      * Sets the proper response to get that the Account Authenticator that started this activity saves
1207      * a new authorization token for mAccount.
1208      */
1209     private void updateToken() {
1210         Bundle response = new Bundle();
1211         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1212         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1213
1214         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1215             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1216             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1217             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1218
1219         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1220
1221             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1222             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1223             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1224
1225         } else {
1226             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1227             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1228         }
1229         setAccountAuthenticatorResult(response);
1230
1231     }
1232
1233
1234     /**
1235      * Creates a new account through the Account Authenticator that started this activity.
1236      *
1237      * This makes the account permanent.
1238      *
1239      * TODO Decide how to name the OAuth accounts
1240      */
1241     private boolean createAccount() {
1242         /// create and save new ownCloud account
1243         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1244         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1245
1246         Uri uri = Uri.parse(mHostBaseUrl);
1247         String username = mUsernameInput.getText().toString().trim();
1248         if (isOAuth) {
1249             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1250         }
1251         String accountName = username + "@" + uri.getHost();
1252         if (uri.getPort() >= 0) {
1253             accountName += ":" + uri.getPort();
1254         }
1255         mAccount = new Account(accountName, MainApp.getAccountType());
1256         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1257             // fail - not a new account, but an existing one; disallow
1258             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1259             updateAuthStatusIconAndText(result);
1260             showAuthStatus();
1261             Log_OC.d(TAG, result.getLogMessage());
1262             return false;
1263
1264         } else {
1265
1266             if (isOAuth || isSaml) {
1267                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1268             } else {
1269                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1270             }
1271
1272             /// add the new account as default in preferences, if there is none already
1273             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1274             if (defaultAccount == null) {
1275                 SharedPreferences.Editor editor = PreferenceManager
1276                         .getDefaultSharedPreferences(this).edit();
1277                 editor.putString("select_oc_account", accountName);
1278                 editor.commit();
1279             }
1280
1281             /// prepare result to return to the Authenticator
1282             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1283             final Intent intent = new Intent();
1284             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1285             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1286             /*if (!isOAuth)
1287                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1288             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1289             if (isOAuth || isSaml) {
1290                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1291             }
1292             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1293             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1294             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1295             if (isSaml) {
1296                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1297             } else if (isOAuth) {
1298                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1299             }
1300
1301             setAccountAuthenticatorResult(intent.getExtras());
1302             setResult(RESULT_OK, intent);
1303
1304             return true;
1305         }
1306     }
1307
1308
1309     /**
1310      * {@inheritDoc}
1311      *
1312      * Necessary to update the contents of the SSL Dialog
1313      *
1314      * TODO move to some common place for all possible untrusted SSL failures
1315      */
1316     @Override
1317     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1318         switch (id) {
1319         case DIALOG_LOGIN_PROGRESS:
1320         case DIALOG_CERT_NOT_SAVED:
1321         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1322             break;
1323         case DIALOG_SSL_VALIDATOR: {
1324             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1325             break;
1326         }
1327         default:
1328             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1329         }
1330     }
1331
1332
1333     /**
1334      * {@inheritDoc}
1335      */
1336     @Override
1337     protected Dialog onCreateDialog(int id) {
1338         Dialog dialog = null;
1339         switch (id) {
1340         case DIALOG_LOGIN_PROGRESS: {
1341             /// simple progress dialog
1342             ProgressDialog working_dialog = new ProgressDialog(this);
1343             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1344             working_dialog.setIndeterminate(true);
1345             working_dialog.setCancelable(true);
1346             working_dialog
1347             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1348                 @Override
1349                 public void onCancel(DialogInterface dialog) {
1350                     /// TODO study if this is enough
1351                     Log_OC.i(TAG, "Login canceled");
1352                     if (mOperationThread != null) {
1353                         mOperationThread.interrupt();
1354                         finish();
1355                     }
1356                 }
1357             });
1358             dialog = working_dialog;
1359             break;
1360         }
1361         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1362             ProgressDialog working_dialog = new ProgressDialog(this);
1363             working_dialog.setMessage(String.format("Getting authorization"));
1364             working_dialog.setIndeterminate(true);
1365             working_dialog.setCancelable(true);
1366             working_dialog
1367             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1368                 @Override
1369                 public void onCancel(DialogInterface dialog) {
1370                     Log_OC.i(TAG, "Login canceled");
1371                     finish();
1372                 }
1373             });
1374             dialog = working_dialog;
1375             break;
1376         }
1377         case DIALOG_SSL_VALIDATOR: {
1378             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1379             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1380             break;
1381         }
1382         case DIALOG_CERT_NOT_SAVED: {
1383             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1384             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1385             builder.setCancelable(false);
1386             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1387                 @Override
1388                 public void onClick(DialogInterface dialog, int which) {
1389                     dialog.dismiss();
1390                 };
1391             });
1392             dialog = builder.create();
1393             break;
1394         }
1395         default:
1396             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1397         }
1398         return dialog;
1399     }
1400
1401
1402     /**
1403      * Starts and activity to open the 'new account' page in the ownCloud web site
1404      *
1405      * @param view      'Account register' button
1406      */
1407     public void onRegisterClick(View view) {
1408         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1409         setResult(RESULT_CANCELED);
1410         startActivity(register);
1411     }
1412
1413
1414     /**
1415      * Updates the content and visibility state of the icon and text associated
1416      * to the last check on the ownCloud server.
1417      */
1418     private void showServerStatus() {
1419         TextView tv = (TextView) findViewById(R.id.server_status_text);
1420
1421         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1422             tv.setVisibility(View.INVISIBLE);
1423
1424         } else {
1425             tv.setText(mServerStatusText);
1426             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1427             tv.setVisibility(View.VISIBLE);
1428         }
1429
1430     }
1431
1432
1433     /**
1434      * Updates the content and visibility state of the icon and text associated
1435      * to the interactions with the OAuth authorization server.
1436      */
1437     private void showAuthStatus() {
1438         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1439             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1440
1441         } else {
1442             mAuthStatusLayout.setText(mAuthStatusText);
1443             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1444             mAuthStatusLayout.setVisibility(View.VISIBLE);
1445         }
1446     }
1447
1448
1449     private void showRefreshButton() {
1450         mRefreshButton.setVisibility(View.VISIBLE);
1451     }
1452
1453     private void hideRefreshButton() {
1454         mRefreshButton.setVisibility(View.GONE);
1455     }
1456
1457     /**
1458      * Called when the refresh button in the input field for ownCloud host is clicked.
1459      *
1460      * Performs a new check on the URL in the input field.
1461      *
1462      * @param view      Refresh 'button'
1463      */
1464     public void onRefreshClick(View view) {
1465         checkOcServer();
1466     }
1467
1468
1469     /**
1470      * Called when the eye icon in the password field is clicked.
1471      *
1472      * Toggles the visibility of the password in the field.
1473      */
1474     public void onViewPasswordClick() {
1475         int selectionStart = mPasswordInput.getSelectionStart();
1476         int selectionEnd = mPasswordInput.getSelectionEnd();
1477         if (isPasswordVisible()) {
1478             hidePassword();
1479         } else {
1480             showPassword();
1481         }
1482         mPasswordInput.setSelection(selectionStart, selectionEnd);
1483     }
1484
1485
1486     /**
1487      * Called when the checkbox for OAuth authorization is clicked.
1488      *
1489      * Hides or shows the input fields for user & password.
1490      *
1491      * @param view      'View password' 'button'
1492      */
1493     public void onCheckClick(View view) {
1494         CheckBox oAuth2Check = (CheckBox)view;
1495         if (oAuth2Check.isChecked()) {
1496             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1497         } else {
1498             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1499         }
1500         adaptViewAccordingToAuthenticationMethod();
1501     }
1502
1503
1504     /**
1505      * Changes the visibility of input elements depending on
1506      * the current authorization method.
1507      */
1508     private void adaptViewAccordingToAuthenticationMethod () {
1509         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1510             // OAuth 2 authorization
1511             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1512             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1513             mUsernameInput.setVisibility(View.GONE);
1514             mPasswordInput.setVisibility(View.GONE);
1515
1516         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1517             // SAML-based web Single Sign On
1518             mOAuthAuthEndpointText.setVisibility(View.GONE);
1519             mOAuthTokenEndpointText.setVisibility(View.GONE);
1520             mUsernameInput.setVisibility(View.GONE);
1521             mPasswordInput.setVisibility(View.GONE);
1522         } else {
1523             // basic HTTP authorization
1524             mOAuthAuthEndpointText.setVisibility(View.GONE);
1525             mOAuthTokenEndpointText.setVisibility(View.GONE);
1526             mUsernameInput.setVisibility(View.VISIBLE);
1527             mPasswordInput.setVisibility(View.VISIBLE);
1528         }
1529     }
1530
1531     /**
1532      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1533      */
1534     public void onSavedCertificate() {
1535         checkOcServer();
1536     }
1537
1538     /**
1539      * Called from SslValidatorDialog when a new server certificate could not be saved
1540      * when the user requested it.
1541      */
1542     @Override
1543     public void onFailedSavingCertificate() {
1544         showDialog(DIALOG_CERT_NOT_SAVED);
1545     }
1546
1547
1548     /**
1549      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1550      *
1551      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1552      *  or to throw the server test when the only field on screen is the URL input field.
1553      */
1554     @Override
1555     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1556         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1557             if (mOkButton.isEnabled()) {
1558                 mOkButton.performClick();
1559             }
1560
1561         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1562             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1563                 checkOcServer();
1564             }
1565         }
1566         return false;   // always return false to grant that the software keyboard is hidden anyway
1567     }
1568
1569
1570     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1571
1572         private int fuzz = 75;
1573
1574         /**
1575          * {@inheritDoc}
1576          */
1577         @Override
1578         public boolean onTouch(View view, MotionEvent event) {
1579             Drawable rightDrawable = null;
1580             if (view instanceof TextView) {
1581                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1582                 if (drawables.length > 2) {
1583                     rightDrawable = drawables[2];
1584                 }
1585             }
1586             if (rightDrawable != null) {
1587                 final int x = (int) event.getX();
1588                 final int y = (int) event.getY();
1589                 final Rect bounds = rightDrawable.getBounds();
1590                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1591                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1592
1593                     return onDrawableTouch(event);
1594                 }
1595             }
1596             return false;
1597         }
1598
1599         public abstract boolean onDrawableTouch(final MotionEvent event);
1600     }
1601
1602
1603     public void onSamlDialogSuccess(String sessionCookie){
1604         mAuthToken = sessionCookie;
1605
1606         if (sessionCookie != null && sessionCookie.length() > 0) {
1607             mAuthToken = sessionCookie;
1608
1609             GetUserNameRemoteOperation getUserOperation = new GetUserNameRemoteOperation();
1610             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1611             client.setSsoSessionCookie(mAuthToken);
1612             getUserOperation.execute(client, this, mHandler);
1613         }
1614
1615
1616     }
1617
1618
1619     @Override
1620     public void onSsoFinished(String sessionCookies) {
1621         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1622
1623         if (sessionCookies != null && sessionCookies.length() > 0) {
1624             Log_OC.d(TAG, "Successful SSO - time to save the account");
1625             onSamlDialogSuccess(sessionCookies);
1626             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1627             if (fd != null && fd instanceof SherlockDialogFragment) {
1628                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1629                 if (d != null && d.isShowing()) {
1630                     d.dismiss();
1631                 }
1632             }
1633
1634         } else {
1635             // TODO - show fail
1636             Log_OC.d(TAG, "SSO failed");
1637         }
1638
1639     }
1640
1641     /** Show auth_message
1642      *
1643      * @param message
1644      */
1645     private void showAuthMessage(String message) {
1646        mAuthMessage.setVisibility(View.VISIBLE);
1647        mAuthMessage.setText(message);
1648     }
1649
1650     private void hideAuthMessage() {
1651         mAuthMessage.setVisibility(View.GONE);
1652     }
1653
1654     @Override
1655     public boolean onTouchEvent(MotionEvent event) {
1656         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1657                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1658             checkOcServer();
1659         }
1660         return super.onTouchEvent(event);
1661     }
1662
1663 }