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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import java.util.concurrent.ExecutionException;
  22
  23 import android.accounts.Account;
  24 import android.accounts.AccountManager;
  25 import android.app.AlertDialog;
  26 import android.app.Dialog;
  27 import android.app.ProgressDialog;
  28 import android.content.DialogInterface;
  29 import android.content.Intent;
  30 import android.content.SharedPreferences;
  31 import android.graphics.Rect;
  32 import android.graphics.drawable.Drawable;
  33 import android.net.Uri;
  34 import android.os.AsyncTask;
  35 import android.os.Bundle;
  36 import android.os.Handler;
  37 import android.preference.PreferenceManager;
  38 import android.support.v4.app.Fragment;
  39 import android.text.Editable;
  40 import android.text.InputType;
  41 import android.text.TextWatcher;
  42 import android.view.KeyEvent;
  43 import android.view.MotionEvent;
  44 import android.view.View;
  45 import android.view.View.OnFocusChangeListener;
  46 import android.view.View.OnTouchListener;
  47 import android.view.Window;
  48 import android.view.inputmethod.EditorInfo;
  49 import android.widget.Button;
  50 import android.widget.CheckBox;
  51 import android.widget.EditText;
  52 import android.widget.TextView;
  53 import android.widget.TextView.OnEditorActionListener;
  54
  55 import com.actionbarsherlock.app.SherlockDialogFragment;
  56 import com.owncloud.android.MainApp;
  57 import com.owncloud.android.R;
  58 import com.owncloud.android.oc_framework.accounts.AccountTypeUtils;
  59 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  60 import com.owncloud.android.oc_framework.accounts.SsoWebViewClient.SsoWebViewClientListener;
  61 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  62 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  63 import com.owncloud.android.operations.OAuth2GetAccessToken;
  64 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  65 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  66 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  67 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  68 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  69 import com.owncloud.android.oc_framework.operations.remote.ExistenceCheckRemoteOperation;
  70 import com.owncloud.android.oc_framework.operations.remote.GetUserNameRemoteOperation;
  71 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  72 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  73 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  74 import com.owncloud.android.utils.Log_OC;
  75 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  76
  77 /**
  78  * This Activity is used to add an ownCloud account to the App
  79  *
  80  * @author Bartek Przybylski
  81  * @author David A. Velasco
  82  */
  83 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  84 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  85
  86     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  87
  88     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  89     public static final String EXTRA_USER_NAME = "USER_NAME";
  90     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  91     public static final String EXTRA_ACTION = "ACTION";
  92     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  93
  94     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  95     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  96     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  97     private static final String KEY_OC_VERSION = "OC_VERSION";
  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
 110     private static final String AUTH_ON = "on";
 111     private static final String AUTH_OFF = "off";
 112     private static final String AUTH_OPTIONAL = "optional";
 113
 114     private static final int DIALOG_LOGIN_PROGRESS = 0;
 115     private static final int DIALOG_SSL_VALIDATOR = 1;
 116     private static final int DIALOG_CERT_NOT_SAVED = 2;
 117     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 118
 119     public static final byte ACTION_CREATE = 0;
 120     public static final byte ACTION_UPDATE_TOKEN = 1;
 121
 122     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 123
 124     private String mHostBaseUrl;
 125     private OwnCloudVersion mDiscoveredVersion;
 126
 127     private String mAuthMessageText;
 128     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 129     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 130     private int mAuthStatusText, mAuthStatusIcon;
 131     private TextView mAuthStatusLayout;
 132
 133     private final Handler mHandler = new Handler();
 134     private Thread mOperationThread;
 135     private OwnCloudServerCheckOperation mOcServerChkOperation;
 136     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 137     private RemoteOperationResult mLastSslUntrustedServerResult;
 138
 139     private Uri mNewCapturedUriFromOAuth2Redirection;
 140
 141     private AccountManager mAccountMgr;
 142     private boolean mJustCreated;
 143     private byte mAction;
 144     private Account mAccount;
 145
 146     private TextView mAuthMessage;
 147
 148     private EditText mHostUrlInput;
 149     private boolean mHostUrlInputEnabled;
 150     private View mRefreshButton;
 151
 152     private String mAuthTokenType;
 153
 154     private EditText mUsernameInput;
 155     private EditText mPasswordInput;
 156
 157     private CheckBox mOAuth2Check;
 158
 159     private TextView mOAuthAuthEndpointText;
 160     private TextView mOAuthTokenEndpointText;
 161
 162     private SamlWebViewDialog mSamlDialog;
 163
 164     private View mOkButton;
 165
 166     private String mAuthToken;
 167
 168     private boolean mResumed; // Control if activity is resumed
 169
 170
 171     /**
 172      * {@inheritDoc}
 173      *
 174      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 175      */
 176     @Override
 177     protected void onCreate(Bundle savedInstanceState) {
 178         super.onCreate(savedInstanceState);
 179         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 180
 181         /// set view and get references to view elements
 182         setContentView(R.layout.account_setup);
 183         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 184         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 185         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 186         mUsernameInput = (EditText) findViewById(R.id.account_username);
 187         mPasswordInput = (EditText) findViewById(R.id.account_password);
 188         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 189         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 190         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 191         mOkButton = findViewById(R.id.buttonOK);
 192         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 193
 194         /// set Host Url Input Enabled
 195         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 196
 197         /// set visibility of link for new users
 198         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 199         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 200         if (welcomeLink != null) {
 201             if (accountRegisterVisibility) {
 202                 welcomeLink.setVisibility(View.VISIBLE);
 203                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 204             } else {
 205                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 206             }
 207         }
 208
 209         /// initialization
 210         mAccountMgr = AccountManager.get(this);
 211         mNewCapturedUriFromOAuth2Redirection = null;
 212         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 213         mAccount = null;
 214         mHostBaseUrl = "";
 215         boolean refreshButtonEnabled = false;
 216
 217         // URL input configuration applied
 218         if (!mHostUrlInputEnabled)
 219         {
 220             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 221             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 222
 223         } else {
 224             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 225         }
 226
 227         if (savedInstanceState == null) {
 228             mResumed = false;
 229             /// connection state and info
 230             mAuthMessageVisibility = View.GONE;
 231             mServerStatusText = mServerStatusIcon = 0;
 232             mServerIsValid = false;
 233             mServerIsChecked = false;
 234             mIsSslConn = false;
 235             mAuthStatusText = mAuthStatusIcon = 0;
 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             if (ocVersion != null) {
 275                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 276             }
 277             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 278
 279             // account data, if updating
 280             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 281             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 282             if (mAuthTokenType == null) {
 283                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 284
 285             }
 286
 287             // check if server check was interrupted by a configuration change
 288             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 289                 checkOcServer();
 290             }
 291
 292             // refresh button enabled
 293             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 294
 295
 296         }
 297
 298         if (mAuthMessageVisibility== View.VISIBLE) {
 299             showAuthMessage(mAuthMessageText);
 300         }
 301         else {
 302             hideAuthMessage();
 303         }
 304         adaptViewAccordingToAuthenticationMethod();
 305         showServerStatus();
 306         showAuthStatus();
 307
 308         if (mAction == ACTION_UPDATE_TOKEN) {
 309             /// lock things that should not change
 310             mHostUrlInput.setEnabled(false);
 311             mHostUrlInput.setFocusable(false);
 312             mUsernameInput.setEnabled(false);
 313             mUsernameInput.setFocusable(false);
 314             mOAuth2Check.setVisibility(View.GONE);
 315         }
 316
 317         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 318         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 319         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 320
 321         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 322                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 323             mOAuth2Check.setVisibility(View.GONE);
 324         }
 325
 326         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 327
 328         /// bind view elements to listeners and other friends
 329         mHostUrlInput.setOnFocusChangeListener(this);
 330         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 331         mHostUrlInput.setOnEditorActionListener(this);
 332         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 333
 334             @Override
 335             public void afterTextChanged(Editable s) {
 336                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 337                     mOkButton.setEnabled(false);
 338                 }
 339             }
 340
 341             @Override
 342             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 343             }
 344
 345             @Override
 346             public void onTextChanged(CharSequence s, int start, int before, int count) {
 347                 if (!mResumed) {
 348                     mAuthStatusIcon = 0;
 349                     mAuthStatusText = 0;
 350                     showAuthStatus();
 351                 }
 352                 mResumed = false;
 353             }
 354         });
 355
 356         mPasswordInput.setOnFocusChangeListener(this);
 357         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 358         mPasswordInput.setOnEditorActionListener(this);
 359         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 360             @Override
 361             public boolean onDrawableTouch(final MotionEvent event) {
 362                 if (event.getAction() == MotionEvent.ACTION_UP) {
 363                     AuthenticatorActivity.this.onViewPasswordClick();
 364                 }
 365                 return true;
 366             }
 367         });
 368
 369         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 370             @Override
 371             public boolean onTouch(View view, MotionEvent event) {
 372                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 373                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 374                             mHostUrlInput.hasFocus()) {
 375                         checkOcServer();
 376                     }
 377                 }
 378                 return false;
 379             }
 380         });
 381     }
 382
 383
 384
 385     private void initAuthorizationMethod() {
 386         boolean oAuthRequired = false;
 387         boolean samlWebSsoRequired = false;
 388
 389         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 390         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 391
 392         // TODO could be a good moment to validate the received token type, if not null
 393
 394         if (mAuthTokenType == null) {
 395             if (mAccount != null) {
 396                 /// same authentication method than the one used to create the account to update
 397                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 398                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 399
 400             } else {
 401                 /// use the one set in setup.xml
 402                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 403                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 404             }
 405             if (oAuthRequired) {
 406                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 407             } else if (samlWebSsoRequired) {
 408                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 409             } else {
 410                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 411             }
 412         }
 413
 414         if (mAccount != null) {
 415             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 416             mUsernameInput.setText(userName);
 417         }
 418
 419         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 420
 421     }
 422
 423     /**
 424      * Saves relevant state before {@link #onPause()}
 425      *
 426      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 427      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 428      *
 429      * See {@link #loadSavedInstanceState(Bundle)}
 430      */
 431     @Override
 432     protected void onSaveInstanceState(Bundle outState) {
 433         super.onSaveInstanceState(outState);
 434
 435         /// connection state and info
 436         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 437         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 438         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 439         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 440         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 441         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 442         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 443         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 444         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 445         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 446         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 447
 448         /// server data
 449         if (mDiscoveredVersion != null) {
 450             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 451         }
 452         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 453
 454         /// account data, if updating
 455         if (mAccount != null) {
 456             outState.putParcelable(KEY_ACCOUNT, mAccount);
 457         }
 458         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 459
 460         // refresh button enabled
 461         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 462
 463
 464     }
 465
 466
 467     /**
 468      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 469      * is caught here.
 470      *
 471      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 472      * AndroidManifest.xml file.
 473      */
 474     @Override
 475     protected void onNewIntent (Intent intent) {
 476         Log_OC.d(TAG, "onNewIntent()");
 477         Uri data = intent.getData();
 478         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 479             mNewCapturedUriFromOAuth2Redirection = data;
 480         }
 481     }
 482
 483
 484     /**
 485      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 486      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 487      */
 488     @Override
 489     protected void onResume() {
 490         super.onResume();
 491         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 492             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 493                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 494                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 495             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 496                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 497                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 498             } else {
 499                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 500                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 501             }
 502         }
 503
 504         if (mNewCapturedUriFromOAuth2Redirection != null) {
 505             getOAuth2AccessTokenFromCapturedRedirection();
 506         }
 507
 508         mJustCreated = false;
 509
 510     }
 511
 512
 513     /**
 514      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 515      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 516      */
 517     private void getOAuth2AccessTokenFromCapturedRedirection() {
 518         /// Parse data from OAuth redirection
 519         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 520         mNewCapturedUriFromOAuth2Redirection = null;
 521
 522         /// Showing the dialog with instructions for the user.
 523         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 524
 525         /// GET ACCESS TOKEN to the oAuth server
 526         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 527                 getString(R.string.oauth2_redirect_uri),
 528                 getString(R.string.oauth2_grant_type),
 529                 queryParameters);
 530         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 531         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 532         operation.execute(client, this, mHandler);
 533     }
 534
 535
 536
 537     /**
 538      * Handles the change of focus on the text inputs for the server URL and the password
 539      */
 540     public void onFocusChange(View view, boolean hasFocus) {
 541         if (view.getId() == R.id.hostUrlInput) {
 542             if (!hasFocus) {
 543                 onUrlInputFocusLost((TextView) view);
 544             }
 545             else {
 546                 hideRefreshButton();
 547             }
 548
 549         } else if (view.getId() == R.id.account_password) {
 550             onPasswordFocusChanged((TextView) view, hasFocus);
 551         }
 552     }
 553
 554
 555     /**
 556      * Handles changes in focus on the text input for the server URL.
 557      *
 558      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 559      * other field. The operation to check the existence of the server in the entered URL is
 560      * started.
 561      *
 562      * When hasFocus:    user 'comes back' to write again the server URL.
 563      *
 564      * @param hostInput     TextView with the URL input field receiving the change of focus.
 565      */
 566     private void onUrlInputFocusLost(TextView hostInput) {
 567         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 568             checkOcServer();
 569         } else {
 570             mOkButton.setEnabled(mServerIsValid);
 571             if (!mServerIsValid) {
 572                 showRefreshButton();
 573             }
 574         }
 575     }
 576
 577
 578     private void checkOcServer() {
 579         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 580
 581         if (!mHostUrlInputEnabled){
 582             uri = getString(R.string.server_url);
 583         }
 584
 585         mServerIsValid = false;
 586         mServerIsChecked = false;
 587         mOkButton.setEnabled(false);
 588         mDiscoveredVersion = null;
 589         hideRefreshButton();
 590         if (uri.length() != 0) {
 591             mServerStatusText = R.string.auth_testing_connection;
 592             mServerStatusIcon = R.drawable.progress_small;
 593             showServerStatus();
 594             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 595             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 596             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 597         } else {
 598             mServerStatusText = 0;
 599             mServerStatusIcon = 0;
 600             showServerStatus();
 601         }
 602     }
 603
 604
 605     /**
 606      * Handles changes in focus on the text input for the password (basic authorization).
 607      *
 608      * When (hasFocus), the button to toggle password visibility is shown.
 609      *
 610      * When (!hasFocus), the button is made invisible and the password is hidden.
 611      *
 612      * @param passwordInput    TextView with the password input field receiving the change of focus.
 613      * @param hasFocus          'True' if focus is received, 'false' if is lost
 614      */
 615     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 616         if (hasFocus) {
 617             showViewPasswordButton();
 618         } else {
 619             hidePassword();
 620             hidePasswordButton();
 621         }
 622     }
 623
 624
 625     private void showViewPasswordButton() {
 626         //int drawable = android.R.drawable.ic_menu_view;
 627         int drawable = R.drawable.ic_view;
 628         if (isPasswordVisible()) {
 629             //drawable = android.R.drawable.ic_secure;
 630             drawable = R.drawable.ic_hide;
 631         }
 632         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 633     }
 634
 635     private boolean isPasswordVisible() {
 636         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 637     }
 638
 639     private void hidePasswordButton() {
 640         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 641     }
 642
 643     private void showPassword() {
 644         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 645         showViewPasswordButton();
 646     }
 647
 648     private void hidePassword() {
 649         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 650         showViewPasswordButton();
 651     }
 652
 653
 654     /**
 655      * Cancels the authenticator activity
 656      *
 657      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 658      *
 659      * This method is bound in the layout/acceoun_setup.xml resource file.
 660      *
 661      * @param view      Cancel button
 662      */
 663     public void onCancelClick(View view) {
 664         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 665         finish();
 666     }
 667
 668
 669
 670     /**
 671      * Checks the credentials of the user in the root of the ownCloud server
 672      * before creating a new local account.
 673      *
 674      * For basic authorization, a check of existence of the root folder is
 675      * performed.
 676      *
 677      * For OAuth, starts the flow to get an access token; the credentials test
 678      * is postponed until it is available.
 679      *
 680      * IMPORTANT ENTRY POINT 4
 681      *
 682      * @param view      OK button
 683      */
 684     public void onOkClick(View view) {
 685         // this check should be unnecessary
 686         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 687             mServerStatusIcon = R.drawable.common_error;
 688             mServerStatusText = R.string.auth_wtf_reenter_URL;
 689             showServerStatus();
 690             mOkButton.setEnabled(false);
 691             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 692             return;
 693         }
 694
 695         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 696             startOauthorization();
 697         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 698             startSamlBasedFederatedSingleSignOnAuthorization();
 699         } else {
 700             checkBasicAuthorization();
 701         }
 702     }
 703
 704
 705     /**
 706      * Tests the credentials entered by the user performing a check of existence on
 707      * the root folder of the ownCloud server.
 708      */
 709     private void checkBasicAuthorization() {
 710         /// get the path to the root folder through WebDAV from the version server
 711         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 712
 713         /// get basic credentials entered by user
 714         String username = mUsernameInput.getText().toString();
 715         String password = mPasswordInput.getText().toString();
 716
 717         /// be gentle with the user
 718         showDialog(DIALOG_LOGIN_PROGRESS);
 719
 720         /// test credentials accessing the root folder
 721         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 722         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 723         client.setBasicCredentials(username, password);
 724         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 725     }
 726
 727
 728     /**
 729      * Starts the OAuth 'grant type' flow to get an access token, with
 730      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 731      */
 732     private void startOauthorization() {
 733         // be gentle with the user
 734         mAuthStatusIcon = R.drawable.progress_small;
 735         mAuthStatusText = R.string.oauth_login_connection;
 736         showAuthStatus();
 737
 738
 739         // GET AUTHORIZATION request
 740         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 741         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 742         Uri.Builder uriBuilder = uri.buildUpon();
 743         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 744         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 745         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 746         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 747         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 748         uri = uriBuilder.build();
 749         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 750         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 751         startActivity(i);
 752     }
 753
 754
 755     /**
 756      * Starts the Web Single Sign On flow to get access to the root folder
 757      * in the server.
 758      */
 759     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 760         // be gentle with the user
 761         mAuthStatusIcon = R.drawable.progress_small;
 762         mAuthStatusText = R.string.auth_connecting_auth_server;
 763         showAuthStatus();
 764         showDialog(DIALOG_LOGIN_PROGRESS);
 765
 766         /// get the path to the root folder through WebDAV from the version server
 767         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 768
 769         /// test credentials accessing the root folder
 770         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 771         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 772         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 773
 774     }
 775
 776     /**
 777      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 778      *
 779      * Dispatches the operation flow to the right method.
 780      */
 781     @Override
 782     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 783
 784         if (operation instanceof OwnCloudServerCheckOperation) {
 785             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 786
 787         } else if (operation instanceof OAuth2GetAccessToken) {
 788             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 789
 790         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 791             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 792                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 793
 794             } else {
 795                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 796             }
 797         }
 798     }
 799
 800
 801
 802     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 803         try {
 804             dismissDialog(DIALOG_LOGIN_PROGRESS);
 805         } catch (IllegalArgumentException e) {
 806             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 807         }
 808
 809         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 810         if (result.isIdPRedirection()) {
 811             String url = result.getRedirectedLocation();
 812             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 813
 814             // Show dialog
 815             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 816             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 817
 818             mAuthStatusIcon = 0;
 819             mAuthStatusText = 0;
 820
 821         } else {
 822             mAuthStatusIcon = R.drawable.common_error;
 823             mAuthStatusText = R.string.auth_unsupported_auth_method;
 824
 825         }
 826         showAuthStatus();
 827     }
 828
 829
 830     /**
 831      * Processes the result of the server check performed when the user finishes the enter of the
 832      * server URL.
 833      *
 834      * @param operation     Server check performed.
 835      * @param result        Result of the check.
 836      */
 837     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 838         if (operation.equals(mOcServerChkOperation)) {
 839             /// save result state
 840             mServerIsChecked = true;
 841             mServerIsValid = result.isSuccess();
 842             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 843             mOcServerChkOperation = null;
 844
 845             /// update status icon and text
 846             if (mServerIsValid) {
 847                 hideRefreshButton();
 848             } else {
 849                 showRefreshButton();
 850             }
 851             updateServerStatusIconAndText(result);
 852             showServerStatus();
 853
 854             /// very special case (TODO: move to a common place for all the remote operations)
 855             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 856                 mLastSslUntrustedServerResult = result;
 857                 showDialog(DIALOG_SSL_VALIDATOR);
 858             }
 859
 860             /// retrieve discovered version and normalize server URL
 861             mDiscoveredVersion = operation.getDiscoveredVersion();
 862             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 863
 864             /// allow or not the user try to access the server
 865             mOkButton.setEnabled(mServerIsValid);
 866
 867         }   // else nothing ; only the last check operation is considered;
 868         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 869     }
 870
 871
 872     private String normalizeUrl(String url) {
 873         if (url != null && url.length() > 0) {
 874             url = url.trim();
 875             if (!url.toLowerCase().startsWith("http://") &&
 876                     !url.toLowerCase().startsWith("https://")) {
 877                 if (mIsSslConn) {
 878                     url = "https://" + url;
 879                 } else {
 880                     url = "http://" + url;
 881                 }
 882             }
 883
 884             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 885             url = trimUrlWebdav(url);
 886
 887             if (url.endsWith("/")) {
 888                 url = url.substring(0, url.length() - 1);
 889             }
 890
 891         }
 892         return (url != null ? url : "");
 893     }
 894
 895
 896     private String trimUrlWebdav(String url){
 897         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 898             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 899         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 900             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 901         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 902             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 903         }
 904         return (url != null ? url : "");
 905     }
 906
 907
 908     /**
 909      * Chooses the right icon and text to show to the user for the received operation result.
 910      *
 911      * @param result    Result of a remote operation performed in this activity
 912      */
 913     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 914         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 915
 916         switch (result.getCode()) {
 917         case OK_SSL:
 918             mServerStatusIcon = android.R.drawable.ic_secure;
 919             mServerStatusText = R.string.auth_secure_connection;
 920             break;
 921
 922         case OK_NO_SSL:
 923         case OK:
 924             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 925                 mServerStatusText = R.string.auth_connection_established;
 926                 mServerStatusIcon = R.drawable.ic_ok;
 927             } else {
 928                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 929                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 930             }
 931             break;
 932
 933         case NO_NETWORK_CONNECTION:
 934             mServerStatusIcon = R.drawable.no_network;
 935             mServerStatusText = R.string.auth_no_net_conn_title;
 936             break;
 937
 938         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 939             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 940             break;
 941         case BAD_OC_VERSION:
 942             mServerStatusText = R.string.auth_bad_oc_version_title;
 943             break;
 944         case WRONG_CONNECTION:
 945             mServerStatusText = R.string.auth_wrong_connection_title;
 946             break;
 947         case TIMEOUT:
 948             mServerStatusText = R.string.auth_timeout_title;
 949             break;
 950         case INCORRECT_ADDRESS:
 951             mServerStatusText = R.string.auth_incorrect_address_title;
 952             break;
 953         case SSL_ERROR:
 954             mServerStatusText = R.string.auth_ssl_general_error_title;
 955             break;
 956         case UNAUTHORIZED:
 957             mServerStatusText = R.string.auth_unauthorized;
 958             break;
 959         case HOST_NOT_AVAILABLE:
 960             mServerStatusText = R.string.auth_unknown_host_title;
 961             break;
 962         case INSTANCE_NOT_CONFIGURED:
 963             mServerStatusText = R.string.auth_not_configured_title;
 964             break;
 965         case FILE_NOT_FOUND:
 966             mServerStatusText = R.string.auth_incorrect_path_title;
 967             break;
 968         case OAUTH2_ERROR:
 969             mServerStatusText = R.string.auth_oauth_error;
 970             break;
 971         case OAUTH2_ERROR_ACCESS_DENIED:
 972             mServerStatusText = R.string.auth_oauth_error_access_denied;
 973             break;
 974         case UNHANDLED_HTTP_CODE:
 975         case UNKNOWN_ERROR:
 976             mServerStatusText = R.string.auth_unknown_error_title;
 977             break;
 978         default:
 979             mServerStatusText = 0;
 980             mServerStatusIcon = 0;
 981         }
 982     }
 983
 984
 985     /**
 986      * Chooses the right icon and text to show to the user for the received operation result.
 987      *
 988      * @param result    Result of a remote operation performed in this activity
 989      */
 990     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
 991         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 992
 993         switch (result.getCode()) {
 994         case OK_SSL:
 995             mAuthStatusIcon = android.R.drawable.ic_secure;
 996             mAuthStatusText = R.string.auth_secure_connection;
 997             break;
 998
 999         case OK_NO_SSL:
1000         case OK:
1001             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1002                 mAuthStatusText = R.string.auth_connection_established;
1003                 mAuthStatusIcon = R.drawable.ic_ok;
1004             } else {
1005                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1006                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1007             }
1008             break;
1009
1010         case NO_NETWORK_CONNECTION:
1011             mAuthStatusIcon = R.drawable.no_network;
1012             mAuthStatusText = R.string.auth_no_net_conn_title;
1013             break;
1014
1015         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1016             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1017             break;
1018         case BAD_OC_VERSION:
1019             mAuthStatusText = R.string.auth_bad_oc_version_title;
1020             break;
1021         case WRONG_CONNECTION:
1022             mAuthStatusText = R.string.auth_wrong_connection_title;
1023             break;
1024         case TIMEOUT:
1025             mAuthStatusText = R.string.auth_timeout_title;
1026             break;
1027         case INCORRECT_ADDRESS:
1028             mAuthStatusText = R.string.auth_incorrect_address_title;
1029             break;
1030         case SSL_ERROR:
1031             mAuthStatusText = R.string.auth_ssl_general_error_title;
1032             break;
1033         case UNAUTHORIZED:
1034             mAuthStatusText = R.string.auth_unauthorized;
1035             break;
1036         case HOST_NOT_AVAILABLE:
1037             mAuthStatusText = R.string.auth_unknown_host_title;
1038             break;
1039         case INSTANCE_NOT_CONFIGURED:
1040             mAuthStatusText = R.string.auth_not_configured_title;
1041             break;
1042         case FILE_NOT_FOUND:
1043             mAuthStatusText = R.string.auth_incorrect_path_title;
1044             break;
1045         case OAUTH2_ERROR:
1046             mAuthStatusText = R.string.auth_oauth_error;
1047             break;
1048         case OAUTH2_ERROR_ACCESS_DENIED:
1049             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1050             break;
1051         case ACCOUNT_NOT_NEW:
1052             mAuthStatusText = R.string.auth_account_not_new;
1053             break;
1054         case ACCOUNT_NOT_THE_SAME:
1055             mAuthStatusText = R.string.auth_account_not_the_same;
1056             break;
1057         case UNHANDLED_HTTP_CODE:
1058         case UNKNOWN_ERROR:
1059             mAuthStatusText = R.string.auth_unknown_error_title;
1060             break;
1061         default:
1062             mAuthStatusText = 0;
1063             mAuthStatusIcon = 0;
1064         }
1065     }
1066
1067
1068     /**
1069      * Processes the result of the request for and access token send
1070      * to an OAuth authorization server.
1071      *
1072      * @param operation     Operation performed requesting the access token.
1073      * @param result        Result of the operation.
1074      */
1075     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1076         try {
1077             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1078         } catch (IllegalArgumentException e) {
1079             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1080         }
1081
1082         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1083         if (result.isSuccess() && webdav_path != null) {
1084             /// be gentle with the user
1085             showDialog(DIALOG_LOGIN_PROGRESS);
1086
1087             /// time to test the retrieved access token on the ownCloud server
1088             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1089             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1090             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1091             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1092             client.setBearerCredentials(mAuthToken);
1093             mAuthCheckOperation.execute(client, this, mHandler);
1094
1095         } else {
1096             updateAuthStatusIconAndText(result);
1097             showAuthStatus();
1098             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1099         }
1100     }
1101
1102
1103     /**
1104      * Processes the result of the access check performed to try the user credentials.
1105      *
1106      * Creates a new account through the AccountManager.
1107      *
1108      * @param operation     Access check performed.
1109      * @param result        Result of the operation.
1110      */
1111     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1112         try {
1113             dismissDialog(DIALOG_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         if (result.isSuccess()) {
1119             Log_OC.d(TAG, "Successful access - time to save the account");
1120
1121             boolean success = false;
1122             if (mAction == ACTION_CREATE) {
1123                 success = createAccount();
1124
1125             } else {
1126                 success = updateToken();
1127             }
1128
1129             if (success) {
1130                 finish();
1131             }
1132
1133         } else if (result.isServerFail() || result.isException()) {
1134             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1135             mServerIsChecked = true;
1136             mServerIsValid = false;
1137             mIsSslConn = false;
1138             mOcServerChkOperation = null;
1139             mDiscoveredVersion = null;
1140             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1141
1142             // update status icon and text
1143             updateServerStatusIconAndText(result);
1144             showServerStatus();
1145             mAuthStatusIcon = 0;
1146             mAuthStatusText = 0;
1147             showAuthStatus();
1148
1149             // update input controls state
1150             showRefreshButton();
1151             mOkButton.setEnabled(false);
1152
1153             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1154             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1155                 mLastSslUntrustedServerResult = result;
1156                 showDialog(DIALOG_SSL_VALIDATOR);
1157             }
1158
1159         } else {    // authorization fail due to client side - probably wrong credentials
1160             updateAuthStatusIconAndText(result);
1161             showAuthStatus();
1162             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1163         }
1164
1165     }
1166
1167
1168     /**
1169      * Sets the proper response to get that the Account Authenticator that started this activity saves
1170      * a new authorization token for mAccount.
1171      */
1172     private boolean updateToken() {
1173         Bundle response = new Bundle();
1174         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1175         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1176
1177         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1178             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1179             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1180             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1181
1182         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1183
1184             String username= getUserNameForSaml(mHostBaseUrl);
1185             if (username == null)
1186                 return false;
1187
1188             if (!mUsernameInput.getText().toString().equals(username)) {
1189                 // fail - not a new account, but an existing one; disallow
1190                 RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
1191                 updateAuthStatusIconAndText(result);
1192                 showAuthStatus();
1193                 Log_OC.d(TAG, result.getLogMessage());
1194
1195                 return false;
1196             }
1197
1198             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1199             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1200             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1201
1202         } else {
1203             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1204             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1205         }
1206         setAccountAuthenticatorResult(response);
1207
1208         return true;
1209     }
1210
1211
1212     /**
1213      * Creates a new account through the Account Authenticator that started this activity.
1214      *
1215      * This makes the account permanent.
1216      *
1217      * TODO Decide how to name the OAuth accounts
1218      */
1219     private boolean createAccount() {
1220         /// create and save new ownCloud account
1221         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1222         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1223
1224         Uri uri = Uri.parse(mHostBaseUrl);
1225         String username = mUsernameInput.getText().toString().trim();
1226         if (isSaml) {
1227             username = getUserNameForSaml(mHostBaseUrl);
1228             if (username == null)
1229                 return false;
1230
1231         } else if (isOAuth) {
1232             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1233         }
1234         String accountName = username + "@" + uri.getHost();
1235         if (uri.getPort() >= 0) {
1236             accountName += ":" + uri.getPort();
1237         }
1238         mAccount = new Account(accountName, MainApp.getAccountType());
1239         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1240             // fail - not a new account, but an existing one; disallow
1241             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1242             updateAuthStatusIconAndText(result);
1243             showAuthStatus();
1244             Log_OC.d(TAG, result.getLogMessage());
1245             return false;
1246
1247         } else {
1248
1249             if (isOAuth || isSaml) {
1250                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1251             } else {
1252                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1253             }
1254
1255             /// add the new account as default in preferences, if there is none already
1256             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1257             if (defaultAccount == null) {
1258                 SharedPreferences.Editor editor = PreferenceManager
1259                         .getDefaultSharedPreferences(this).edit();
1260                 editor.putString("select_oc_account", accountName);
1261                 editor.commit();
1262             }
1263
1264             /// prepare result to return to the Authenticator
1265             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1266             final Intent intent = new Intent();
1267             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1268             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1269             /*if (!isOAuth)
1270                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1271             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1272             if (isOAuth || isSaml) {
1273                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1274             }
1275             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1276             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1277             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1278             if (isSaml) {
1279                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1280             } else if (isOAuth) {
1281                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1282             }
1283
1284             setAccountAuthenticatorResult(intent.getExtras());
1285             setResult(RESULT_OK, intent);
1286
1287             return true;
1288         }
1289     }
1290
1291
1292     /**
1293      * {@inheritDoc}
1294      *
1295      * Necessary to update the contents of the SSL Dialog
1296      *
1297      * TODO move to some common place for all possible untrusted SSL failures
1298      */
1299     @Override
1300     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1301         switch (id) {
1302         case DIALOG_LOGIN_PROGRESS:
1303         case DIALOG_CERT_NOT_SAVED:
1304         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1305             break;
1306         case DIALOG_SSL_VALIDATOR: {
1307             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1308             break;
1309         }
1310         default:
1311             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1312         }
1313     }
1314
1315
1316     /**
1317      * {@inheritDoc}
1318      */
1319     @Override
1320     protected Dialog onCreateDialog(int id) {
1321         Dialog dialog = null;
1322         switch (id) {
1323         case DIALOG_LOGIN_PROGRESS: {
1324             /// simple progress dialog
1325             ProgressDialog working_dialog = new ProgressDialog(this);
1326             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1327             working_dialog.setIndeterminate(true);
1328             working_dialog.setCancelable(true);
1329             working_dialog
1330             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1331                 @Override
1332                 public void onCancel(DialogInterface dialog) {
1333                     /// TODO study if this is enough
1334                     Log_OC.i(TAG, "Login canceled");
1335                     if (mOperationThread != null) {
1336                         mOperationThread.interrupt();
1337                         finish();
1338                     }
1339                 }
1340             });
1341             dialog = working_dialog;
1342             break;
1343         }
1344         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1345             ProgressDialog working_dialog = new ProgressDialog(this);
1346             working_dialog.setMessage(String.format("Getting authorization"));
1347             working_dialog.setIndeterminate(true);
1348             working_dialog.setCancelable(true);
1349             working_dialog
1350             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1351                 @Override
1352                 public void onCancel(DialogInterface dialog) {
1353                     Log_OC.i(TAG, "Login canceled");
1354                     finish();
1355                 }
1356             });
1357             dialog = working_dialog;
1358             break;
1359         }
1360         case DIALOG_SSL_VALIDATOR: {
1361             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1362             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1363             break;
1364         }
1365         case DIALOG_CERT_NOT_SAVED: {
1366             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1367             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1368             builder.setCancelable(false);
1369             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1370                 @Override
1371                 public void onClick(DialogInterface dialog, int which) {
1372                     dialog.dismiss();
1373                 };
1374             });
1375             dialog = builder.create();
1376             break;
1377         }
1378         default:
1379             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1380         }
1381         return dialog;
1382     }
1383
1384
1385     /**
1386      * Starts and activity to open the 'new account' page in the ownCloud web site
1387      *
1388      * @param view      'Account register' button
1389      */
1390     public void onRegisterClick(View view) {
1391         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1392         setResult(RESULT_CANCELED);
1393         startActivity(register);
1394     }
1395
1396
1397     /**
1398      * Updates the content and visibility state of the icon and text associated
1399      * to the last check on the ownCloud server.
1400      */
1401     private void showServerStatus() {
1402         TextView tv = (TextView) findViewById(R.id.server_status_text);
1403
1404         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1405             tv.setVisibility(View.INVISIBLE);
1406
1407         } else {
1408             tv.setText(mServerStatusText);
1409             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1410             tv.setVisibility(View.VISIBLE);
1411         }
1412
1413     }
1414
1415
1416     /**
1417      * Updates the content and visibility state of the icon and text associated
1418      * to the interactions with the OAuth authorization server.
1419      */
1420     private void showAuthStatus() {
1421         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1422             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1423
1424         } else {
1425             mAuthStatusLayout.setText(mAuthStatusText);
1426             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1427             mAuthStatusLayout.setVisibility(View.VISIBLE);
1428         }
1429     }
1430
1431
1432     private void showRefreshButton() {
1433         mRefreshButton.setVisibility(View.VISIBLE);
1434     }
1435
1436     private void hideRefreshButton() {
1437         mRefreshButton.setVisibility(View.GONE);
1438     }
1439
1440     /**
1441      * Called when the refresh button in the input field for ownCloud host is clicked.
1442      *
1443      * Performs a new check on the URL in the input field.
1444      *
1445      * @param view      Refresh 'button'
1446      */
1447     public void onRefreshClick(View view) {
1448         checkOcServer();
1449     }
1450
1451
1452     /**
1453      * Called when the eye icon in the password field is clicked.
1454      *
1455      * Toggles the visibility of the password in the field.
1456      */
1457     public void onViewPasswordClick() {
1458         int selectionStart = mPasswordInput.getSelectionStart();
1459         int selectionEnd = mPasswordInput.getSelectionEnd();
1460         if (isPasswordVisible()) {
1461             hidePassword();
1462         } else {
1463             showPassword();
1464         }
1465         mPasswordInput.setSelection(selectionStart, selectionEnd);
1466     }
1467
1468
1469     /**
1470      * Called when the checkbox for OAuth authorization is clicked.
1471      *
1472      * Hides or shows the input fields for user & password.
1473      *
1474      * @param view      'View password' 'button'
1475      */
1476     public void onCheckClick(View view) {
1477         CheckBox oAuth2Check = (CheckBox)view;
1478         if (oAuth2Check.isChecked()) {
1479             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1480         } else {
1481             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1482         }
1483         adaptViewAccordingToAuthenticationMethod();
1484     }
1485
1486
1487     /**
1488      * Changes the visibility of input elements depending on
1489      * the current authorization method.
1490      */
1491     private void adaptViewAccordingToAuthenticationMethod () {
1492         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1493             // OAuth 2 authorization
1494             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1495             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1496             mUsernameInput.setVisibility(View.GONE);
1497             mPasswordInput.setVisibility(View.GONE);
1498
1499         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1500             // SAML-based web Single Sign On
1501             mOAuthAuthEndpointText.setVisibility(View.GONE);
1502             mOAuthTokenEndpointText.setVisibility(View.GONE);
1503             mUsernameInput.setVisibility(View.GONE);
1504             mPasswordInput.setVisibility(View.GONE);
1505         } else {
1506             // basic HTTP authorization
1507             mOAuthAuthEndpointText.setVisibility(View.GONE);
1508             mOAuthTokenEndpointText.setVisibility(View.GONE);
1509             mUsernameInput.setVisibility(View.VISIBLE);
1510             mPasswordInput.setVisibility(View.VISIBLE);
1511         }
1512     }
1513
1514     /**
1515      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1516      */
1517     public void onSavedCertificate() {
1518         checkOcServer();
1519     }
1520
1521     /**
1522      * Called from SslValidatorDialog when a new server certificate could not be saved
1523      * when the user requested it.
1524      */
1525     @Override
1526     public void onFailedSavingCertificate() {
1527         showDialog(DIALOG_CERT_NOT_SAVED);
1528     }
1529
1530
1531     /**
1532      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1533      *
1534      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1535      *  or to throw the server test when the only field on screen is the URL input field.
1536      */
1537     @Override
1538     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1539         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1540             if (mOkButton.isEnabled()) {
1541                 mOkButton.performClick();
1542             }
1543
1544         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1545             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1546                 checkOcServer();
1547             }
1548         }
1549         return false;   // always return false to grant that the software keyboard is hidden anyway
1550     }
1551
1552
1553     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1554
1555         private int fuzz = 75;
1556
1557         /**
1558          * {@inheritDoc}
1559          */
1560         @Override
1561         public boolean onTouch(View view, MotionEvent event) {
1562             Drawable rightDrawable = null;
1563             if (view instanceof TextView) {
1564                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1565                 if (drawables.length > 2) {
1566                     rightDrawable = drawables[2];
1567                 }
1568             }
1569             if (rightDrawable != null) {
1570                 final int x = (int) event.getX();
1571                 final int y = (int) event.getY();
1572                 final Rect bounds = rightDrawable.getBounds();
1573                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1574                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1575
1576                     return onDrawableTouch(event);
1577                 }
1578             }
1579             return false;
1580         }
1581
1582         public abstract boolean onDrawableTouch(final MotionEvent event);
1583     }
1584
1585
1586     public void onSamlDialogSuccess(String sessionCookie){
1587         mAuthToken = sessionCookie;
1588
1589         if (sessionCookie != null && sessionCookie.length() > 0) {
1590             mAuthToken = sessionCookie;
1591             boolean success = false;
1592             if (mAction == ACTION_CREATE) {
1593                 success = createAccount();
1594
1595             } else {
1596                 success = updateToken();
1597             }
1598             if (success) {
1599                 finish();
1600             }
1601         }
1602
1603
1604     }
1605
1606
1607     @Override
1608     public void onSsoFinished(String sessionCookies) {
1609         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1610
1611         if (sessionCookies != null && sessionCookies.length() > 0) {
1612             Log_OC.d(TAG, "Successful SSO - time to save the account");
1613             onSamlDialogSuccess(sessionCookies);
1614             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1615             if (fd != null && fd instanceof SherlockDialogFragment) {
1616                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1617                 if (d != null && d.isShowing()) {
1618                     d.dismiss();
1619                 }
1620             }
1621
1622         } else {
1623             // TODO - show fail
1624             Log_OC.d(TAG, "SSO failed");
1625         }
1626
1627     }
1628
1629     /** Show auth_message
1630      *
1631      * @param message
1632      */
1633     private void showAuthMessage(String message) {
1634        mAuthMessage.setVisibility(View.VISIBLE);
1635        mAuthMessage.setText(message);
1636     }
1637
1638     private void hideAuthMessage() {
1639         mAuthMessage.setVisibility(View.GONE);
1640     }
1641
1642     @Override
1643     public boolean onTouchEvent(MotionEvent event) {
1644         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1645                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1646             checkOcServer();
1647         }
1648         return super.onTouchEvent(event);
1649     }
1650
1651
1652     /**
1653      * Asynchronous task to get the SAML User name from OCS-API
1654      *
1655      */
1656     private class GetUserNameTask extends AsyncTask<String, Void, String>{
1657
1658         @Override
1659         protected String doInBackground(String... params) {
1660
1661             String hostUrl = (String)params[0];
1662
1663             GetUserNameRemoteOperation getUserOperation = new GetUserNameRemoteOperation(hostUrl, mAuthToken);
1664             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(hostUrl), getApplicationContext(), true);
1665             RemoteOperationResult result = getUserOperation.execute(client);
1666
1667             return result.getUserName();
1668         }
1669
1670     }
1671
1672     /**
1673      * Get the user name form OCS-API
1674      * @param hostUrl
1675      * @return username
1676      */
1677     private String getUserNameForSaml(String hostUrl){
1678
1679         GetUserNameTask getUserTask = new GetUserNameTask();
1680         String username = null;
1681         try {
1682             username = getUserTask.execute(mHostBaseUrl).get();
1683         } catch (InterruptedException e) {
1684             e.printStackTrace();
1685         } catch (ExecutionException e) {
1686             e.printStackTrace();
1687         }
1688
1689         return username;
1690     }
1691 }