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.CookieSyncManager;
  33 import android.webkit.WebBackForwardList;
  34 import android.webkit.WebSettings;
  35 import android.webkit.WebView;
  36
  37 import com.actionbarsherlock.app.SherlockDialogFragment;
  38 import com.owncloud.android.Log_OC;
  39 import com.owncloud.android.R;
  40 import com.owncloud.android.authentication.SsoWebViewClient;
  41 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  42
  43
  44 import eu.alefzero.webdav.WebdavClient;
  45
  46 /**
  47  * Dialog to show the WebView for SAML Authentication
  48  *
  49  * @author Maria Asensio
  50  * @author David A. Velasco
  51  */
  52 public class SamlWebViewDialog extends SherlockDialogFragment {
  53
  54     public final String SAML_DIALOG_TAG = "SamlWebViewDialog";
  55
  56     private final static String TAG =  SamlWebViewDialog.class.getSimpleName();
  57
  58     private static final String ARG_INITIAL_URL = "INITIAL_URL";
  59     private static final String ARG_TARGET_URL = "TARGET_URL";
  60     private static final String KEY_WEBVIEW_STATE = "WEBVIEW_STATE";
  61
  62     private WebView mSsoWebView;
  63     private SsoWebViewClient mWebViewClient;
  64
  65     private String mInitialUrl;
  66     private String mTargetUrl;
  67
  68     private Handler mHandler;
  69
  70     private SsoWebViewClientListener mSsoWebViewClientListener;
  71
  72     //private View mSsoRootView;
  73
  74
  75     /**
  76      * Public factory method to get dialog instances.
  77      *
  78      * @param handler
  79      * @param Url           Url to open at WebView
  80      * @param targetURL     mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mCurrentAuthTokenType)
  81      * @return              New dialog instance, ready to show.
  82      */
  83     public static SamlWebViewDialog newInstance(String url, String targetUrl) {
  84         Log_OC.d(TAG, "New instance");
  85         SamlWebViewDialog fragment = new SamlWebViewDialog();
  86         Bundle args = new Bundle();
  87         args.putString(ARG_INITIAL_URL, url);
  88         args.putString(ARG_TARGET_URL, targetUrl);
  89         fragment.setArguments(args);
  90         return fragment;
  91     }
  92
  93
  94     public SamlWebViewDialog() {
  95         super();
  96         Log_OC.d(TAG, "constructor");
  97     }
  98
  99
 100     @Override
 101     public void onAttach(Activity activity) {
 102         Log_OC.d(TAG, "onAttach");
 103         super.onAttach(activity);
 104         try {
 105             mSsoWebViewClientListener = (SsoWebViewClientListener) activity;
 106             mHandler = new Handler();
 107             mWebViewClient = new SsoWebViewClient(mHandler, mSsoWebViewClientListener);
 108
 109        } catch (ClassCastException e) {
 110             throw new ClassCastException(activity.toString() + " must implement " + SsoWebViewClientListener.class.getSimpleName());
 111         }
 112     }
 113
 114
 115     @SuppressLint("SetJavaScriptEnabled")
 116     @Override
 117     public void onCreate(Bundle savedInstanceState) {
 118         Log_OC.d(TAG, "onCreate");
 119         super.onCreate(savedInstanceState);
 120
 121         CookieSyncManager.createInstance(getActivity());
 122
 123         if (savedInstanceState == null) {
 124             mInitialUrl = getArguments().getString(ARG_INITIAL_URL);
 125             mTargetUrl = getArguments().getString(ARG_TARGET_URL);
 126         } else {
 127             mInitialUrl = savedInstanceState.getString(ARG_INITIAL_URL);
 128             mTargetUrl = savedInstanceState.getString(ARG_TARGET_URL);
 129         }
 130
 131         setStyle(SherlockDialogFragment.STYLE_NO_TITLE, R.style.Theme_ownCloud_Dialog);
 132     }
 133
 134     @Override
 135     public Dialog onCreateDialog(Bundle savedInstanceState) {
 136         Log_OC.d(TAG, "onCreateDialog");
 137
 138         /*
 139         // build the dialog
 140         AlertDialog.Builder builder = new AlertDialog.Builder(getSherlockActivity());
 141         if (mSsoRootView.getParent() != null) {
 142             ((ViewGroup)(mSsoRootView.getParent())).removeView(mSsoRootView);
 143         }
 144         builder.setView(mSsoRootView);
 145         //builder.setView(mSsoWebView);
 146         Dialog dialog = builder.create();
 147         */
 148
 149         return super.onCreateDialog(savedInstanceState);
 150     }
 151
 152     @SuppressLint("SetJavaScriptEnabled")
 153     @Override
 154     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
 155         Log_OC.d(TAG, "onCreateView");
 156
 157         // Inflate layout of the dialog
 158         View rootView = inflater.inflate(R.layout.sso_dialog, container, false);  // null parent view because it will go in the dialog layout
 159         mSsoWebView  = (WebView) rootView.findViewById(R.id.sso_webview);
 160
 161         mWebViewClient.setTargetUrl(mTargetUrl);
 162         mSsoWebView.setWebViewClient(mWebViewClient);
 163
 164         if (savedInstanceState == null) {
 165             Log_OC.d(TAG,  "   initWebView start");
 166             CookieManager cookieManager = CookieManager.getInstance();
 167             cookieManager.setAcceptCookie(true);
 168             cookieManager.removeAllCookie();
 169             mSsoWebView.loadUrl(mInitialUrl);
 170
 171         } else {
 172             Log_OC.d(TAG, "   restoreWebView start");
 173             WebBackForwardList history = mSsoWebView.restoreState(savedInstanceState.getBundle(KEY_WEBVIEW_STATE));
 174             if (history == null) {
 175                 Log_OC.e(TAG, "Error restoring WebView state ; back to starting URL");
 176                 mSsoWebView.loadUrl(mInitialUrl);
 177             }
 178         }
 179
 180         WebSettings webSettings = mSsoWebView.getSettings();
 181         webSettings.setJavaScriptEnabled(true);
 182         webSettings.setBuiltInZoomControls(true);
 183         webSettings.setLoadWithOverviewMode(false);
 184         webSettings.setSavePassword(false);
 185         webSettings.setUserAgentString(WebdavClient.USER_AGENT);
 186         webSettings.setSaveFormData(false);
 187
 188         return rootView;
 189     }
 190
 191     @Override
 192     public void onSaveInstanceState(Bundle outState) {
 193         Log_OC.d(SAML_DIALOG_TAG, "onSaveInstanceState being CALLED");
 194         super.onSaveInstanceState(outState);
 195
 196         // save URLs
 197         outState.putString(ARG_INITIAL_URL, mInitialUrl);
 198         outState.putString(ARG_TARGET_URL, mTargetUrl);
 199
 200         // Save the state of the WebView
 201         Bundle webviewState = new Bundle();
 202         mSsoWebView.saveState(webviewState);
 203         outState.putBundle(KEY_WEBVIEW_STATE, webviewState);
 204     }
 205
 206     @Override
 207     public void onDestroyView() {
 208         Log_OC.d(TAG, "onDestroyView");
 209
 210         mSsoWebView.setWebViewClient(null);
 211
 212         // Work around bug: http://code.google.com/p/android/issues/detail?id=17423
 213         Dialog dialog = getDialog();
 214         if ((dialog != null)) {
 215             dialog.setOnDismissListener(null);
 216             //dialog.dismiss();
 217             //dialog.setDismissMessage(null);
 218         }
 219
 220         super.onDestroyView();
 221     }
 222
 223     @Override
 224     public void onDestroy() {
 225         Log_OC.d(TAG, "onDestroy");
 226         super.onDestroy();
 227     }
 228
 229     @Override
 230     public void onDetach() {
 231         Log_OC.d(TAG, "onDetach");
 232         mSsoWebViewClientListener = null;
 233         mWebViewClient = null;
 234         super.onDetach();
 235     }
 236
 237     @Override
 238     public void onCancel (DialogInterface dialog) {
 239         Log_OC.d(SAML_DIALOG_TAG, "onCancel");
 240         super.onCancel(dialog);
 241     }
 242
 243     @Override
 244     public void onDismiss (DialogInterface dialog) {
 245         Log_OC.d(SAML_DIALOG_TAG, "onDismiss");
 246         super.onDismiss(dialog);
 247     }
 248
 249     @Override
 250     public void onStart() {
 251         Log_OC.d(SAML_DIALOG_TAG, "onStart");
 252         super.onStart();
 253     }
 254
 255     @Override
 256     public void onStop() {
 257         Log_OC.d(SAML_DIALOG_TAG, "onStop");
 258         super.onStop();
 259     }
 260
 261     @Override
 262     public void onResume() {
 263         Log_OC.d(SAML_DIALOG_TAG, "onResume");
 264         super.onResume();
 265     }
 266
 267     @Override
 268     public void onPause() {
 269         Log_OC.d(SAML_DIALOG_TAG, "onPause");
 270         super.onPause();
 271     }
 272
 273     @Override
 274     public int show (FragmentTransaction transaction, String tag) {
 275         Log_OC.d(SAML_DIALOG_TAG, "show (transaction)");
 276         return super.show(transaction, tag);
 277     }
 278
 279     @Override
 280     public void show (FragmentManager manager, String tag) {
 281         Log_OC.d(SAML_DIALOG_TAG, "show (manager)");
 282         super.show(manager, tag);
 283     }
 284
 285 }