src/com/owncloud/android/ui/dialog/SamlWebViewDialog.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2013 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.ui.dialog;
  19
  20 import android.annotation.SuppressLint;
  21 import android.app.Activity;
  22 import android.app.Dialog;
  23 import android.content.DialogInterface;
  24 import android.os.Bundle;
  25 import android.os.Handler;
  26 import android.support.v4.app.FragmentTransaction;
  27 import android.support.v4.app.FragmentManager;
  28 import android.view.LayoutInflater;
  29 import android.view.View;
  30 import android.view.ViewGroup;
  31 import android.webkit.CookieManager;
  32 import android.webkit.WebBackForwardList;
  33 import android.webkit.WebSettings;
  34 import android.webkit.WebView;
  35
  36 import com.actionbarsherlock.app.SherlockDialogFragment;
  37 import com.owncloud.android.Log_OC;
  38 import com.owncloud.android.R;
  39 import com.owncloud.android.authentication.SsoWebViewClient;
  40 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  41
  42 import eu.alefzero.webdav.WebdavClient;
  43
  44 /**
  45  * Dialog to show the WebView for SAML Authentication
  46  *
  47  * @author Maria Asensio
  48  * @author David A. Velasco
  49  */
  50 public class SamlWebViewDialog extends SherlockDialogFragment {
  51
  52     public final String SAML_DIALOG_TAG = "SamlWebViewDialog";
  53
  54     private final static String TAG =  SamlWebViewDialog.class.getSimpleName();
  55
  56     private static final String ARG_INITIAL_URL = "INITIAL_URL";
  57     private static final String ARG_TARGET_URL = "TARGET_URL";
  58     private static final String KEY_WEBVIEW_STATE = "WEBVIEW_STATE";
  59
  60     private WebView mSsoWebView;
  61     private SsoWebViewClient mWebViewClient;
  62
  63     private String mInitialUrl;
  64     private String mTargetUrl;
  65
  66     private Handler mHandler;
  67
  68     private SsoWebViewClientListener mSsoWebViewClientListener;
  69
  70     //private View mSsoRootView;
  71
  72
  73     /**
  74      * Public factory method to get dialog instances.
  75      *
  76      * @param handler
  77      * @param Url           Url to open at WebView
  78      * @param targetURL     mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType)
  79      * @return              New dialog instance, ready to show.
  80      */
  81     public static SamlWebViewDialog newInstance(String url, String targetUrl) {
  82         Log_OC.d(TAG, "New instance");
  83         SamlWebViewDialog fragment = new SamlWebViewDialog();
  84         Bundle args = new Bundle();
  85         args.putString(ARG_INITIAL_URL, url);
  86         args.putString(ARG_TARGET_URL, targetUrl);
  87         fragment.setArguments(args);
  88         return fragment;
  89     }
  90
  91
  92     public SamlWebViewDialog() {
  93         super();
  94         Log_OC.d(TAG, "constructor");
  95     }
  96
  97
  98     @Override
  99     public void onAttach(Activity activity) {
 100         Log_OC.d(TAG, "onAttach");
 101         super.onAttach(activity);
 102         try {
 103             mSsoWebViewClientListener = (SsoWebViewClientListener) activity;
 104             mHandler = new Handler();
 105             mWebViewClient = new SsoWebViewClient(mHandler, mSsoWebViewClientListener);
 106
 107        } catch (ClassCastException e) {
 108             throw new ClassCastException(activity.toString() + " must implement " + SsoWebViewClientListener.class.getSimpleName());
 109         }
 110     }
 111
 112
 113     @SuppressLint("SetJavaScriptEnabled")
 114     @Override
 115     public void onCreate(Bundle savedInstanceState) {
 116         Log_OC.d(TAG, "onCreate");
 117         super.onCreate(savedInstanceState);
 118
 119         if (savedInstanceState == null) {
 120             mInitialUrl = getArguments().getString(ARG_INITIAL_URL);
 121             mTargetUrl = getArguments().getString(ARG_TARGET_URL);
 122         } else {
 123             mInitialUrl = savedInstanceState.getString(ARG_INITIAL_URL);
 124             mTargetUrl = savedInstanceState.getString(ARG_TARGET_URL);
 125         }
 126
 127         setStyle(SherlockDialogFragment.STYLE_NO_TITLE, R.style.Theme_ownCloud_Dialog);
 128     }
 129
 130     @Override
 131     public Dialog onCreateDialog(Bundle savedInstanceState) {
 132         Log_OC.d(TAG, "onCreateDialog");
 133
 134         /*
 135         // build the dialog
 136         AlertDialog.Builder builder = new AlertDialog.Builder(getSherlockActivity());
 137         if (mSsoRootView.getParent() != null) {
 138             ((ViewGroup)(mSsoRootView.getParent())).removeView(mSsoRootView);
 139         }
 140         builder.setView(mSsoRootView);
 141         //builder.setView(mSsoWebView);
 142         Dialog dialog = builder.create();
 143         */
 144
 145         return super.onCreateDialog(savedInstanceState);
 146     }
 147
 148     @SuppressLint("SetJavaScriptEnabled")
 149     @Override
 150     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 151         Log_OC.d(TAG, "onCreateView");
 152
 153         // Inflate layout of the dialog
 154         View rootView = inflater.inflate(R.layout.sso_dialog, container, false);  // null parent view because it will go in the dialog layout
 155         mSsoWebView  = (WebView) rootView.findViewById(R.id.sso_webview);
 156
 157         mWebViewClient.setTargetUrl(mTargetUrl);
 158         mSsoWebView.setWebViewClient(mWebViewClient);
 159
 160         if (savedInstanceState == null) {
 161             Log_OC.d(TAG,  "   initWebView start");
 162             CookieManager cookieManager = CookieManager.getInstance();
 163             cookieManager.setAcceptCookie(true);
 164             cookieManager.removeAllCookie();
 165             mSsoWebView.loadUrl(mInitialUrl);
 166
 167         } else {
 168             Log_OC.d(TAG, "   restoreWebView start");
 169             WebBackForwardList history = mSsoWebView.restoreState(savedInstanceState.getBundle(KEY_WEBVIEW_STATE));
 170             if (history == null) {
 171                 Log_OC.e(TAG, "Error restoring WebView state ; back to starting URL");
 172                 mSsoWebView.loadUrl(mInitialUrl);
 173             }
 174         }
 175
 176         WebSettings webSettings = mSsoWebView.getSettings();
 177         webSettings.setJavaScriptEnabled(true);
 178         webSettings.setBuiltInZoomControls(true);
 179         webSettings.setLoadWithOverviewMode(false);
 180         webSettings.setSavePassword(false);
 181         webSettings.setUserAgentString(WebdavClient.USER_AGENT);
 182         webSettings.setSaveFormData(false);
 183
 184         return rootView;
 185     }
 186
 187     @Override
 188     public void onSaveInstanceState(Bundle outState) {
 189         Log_OC.d(SAML_DIALOG_TAG, "onSaveInstanceState being CALLED");
 190         super.onSaveInstanceState(outState);
 191
 192         // save URLs
 193         outState.putString(ARG_INITIAL_URL, mInitialUrl);
 194         outState.putString(ARG_TARGET_URL, mTargetUrl);
 195
 196         // Save the state of the WebView
 197         Bundle webviewState = new Bundle();
 198         mSsoWebView.saveState(webviewState);
 199         outState.putBundle(KEY_WEBVIEW_STATE, webviewState);
 200     }
 201
 202     @Override
 203     public void onDestroyView() {
 204         Log_OC.d(TAG, "onDestroyView");
 205
 206         mSsoWebView.setWebViewClient(null);
 207
 208         // Work around bug: http://code.google.com/p/android/issues/detail?id=17423
 209         Dialog dialog = getDialog();
 210         if ((dialog != null)) {
 211             dialog.setOnDismissListener(null);
 212             //dialog.dismiss();
 213             //dialog.setDismissMessage(null);
 214         }
 215
 216         super.onDestroyView();
 217     }
 218
 219     @Override
 220     public void onDestroy() {
 221         Log_OC.d(TAG, "onDestroy");
 222         super.onDestroy();
 223     }
 224
 225     @Override
 226     public void onDetach() {
 227         Log_OC.d(TAG, "onDetach");
 228         mSsoWebViewClientListener = null;
 229         mWebViewClient = null;
 230         super.onDetach();
 231     }
 232
 233     @Override
 234     public void onCancel (DialogInterface dialog) {
 235         Log_OC.d(SAML_DIALOG_TAG, "onCancel");
 236         super.onCancel(dialog);
 237     }
 238
 239     @Override
 240     public void onDismiss (DialogInterface dialog) {
 241         Log_OC.d(SAML_DIALOG_TAG, "onDismiss");
 242         super.onDismiss(dialog);
 243     }
 244
 245     @Override
 246     public void onStart() {
 247         Log_OC.d(SAML_DIALOG_TAG, "onStart");
 248         super.onStart();
 249     }
 250
 251     @Override
 252     public void onStop() {
 253         Log_OC.d(SAML_DIALOG_TAG, "onStop");
 254         super.onStop();
 255     }
 256
 257     @Override
 258     public void onResume() {
 259         Log_OC.d(SAML_DIALOG_TAG, "onResume");
 260         super.onResume();
 261     }
 262
 263     @Override
 264     public void onPause() {
 265         Log_OC.d(SAML_DIALOG_TAG, "onPause");
 266         super.onPause();
 267     }
 268
 269     @Override
 270     public int show (FragmentTransaction transaction, String tag) {
 271         Log_OC.d(SAML_DIALOG_TAG, "show (transaction)");
 272         return super.show(transaction, tag);
 273     }
 274
 275     @Override
 276     public void show (FragmentManager manager, String tag) {
 277         Log_OC.d(SAML_DIALOG_TAG, "show (manager)");
 278         super.show(manager, tag);
 279     }
 280
 281 }