src/com/owncloud/android/authentication/SsoWebViewClient.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.authentication;
  19
  20 import java.lang.ref.WeakReference;
  21
  22 import android.graphics.Bitmap;
  23 import android.os.Handler;
  24 import android.os.Message;
  25 import android.view.View;
  26 import android.webkit.CookieManager;
  27 import android.webkit.WebView;
  28 import android.webkit.WebViewClient;
  29
  30
  31 /**
  32  * Custom {@link WebViewClient} client aimed to catch the end of a single-sign-on process
  33  * running in the {@link WebView} that is attached to.
  34  *
  35  * Assumes that the single-sign-on is kept thanks to a cookie set at the end of the
  36  * authentication process.
  37  *
  38  * @author David A. Velasco
  39  */
  40 public class SsoWebViewClient extends WebViewClient {
  41
  42     //private static final String TAG = SsoWebViewClient.class.getSimpleName();
  43
  44     public interface SsoWebViewClientListener {
  45         public void onSsoFinished(String sessionCookie);
  46     }
  47
  48     private Handler mListenerHandler;
  49     private WeakReference<SsoWebViewClientListener> mListenerRef;
  50     private String mTargetUrl;
  51
  52     public SsoWebViewClient (Handler listenerHandler, SsoWebViewClientListener listener) {
  53         mListenerHandler = listenerHandler;
  54         mListenerRef = new WeakReference<SsoWebViewClient.SsoWebViewClientListener>(listener);
  55         mTargetUrl = "fake://url.to.be.set";
  56     }
  57
  58     public String getTargetUrl() {
  59         return mTargetUrl;
  60     }
  61
  62     public void setTargetUrl(String targetUrl) {
  63         mTargetUrl = targetUrl;
  64     }
  65
  66     @Override
  67     public void onPageStarted (WebView view, String url, Bitmap favicon) {
  68         //Log_OC.e(TAG, "onPageStarted : " + url);
  69         if (url.startsWith(mTargetUrl)) {
  70             view.setVisibility(View.GONE);
  71             CookieManager cookieManager = CookieManager.getInstance();
  72             final String cookies = cookieManager.getCookie(url);
  73             //Log_OC.e(TAG, cookies);
  74             if (mListenerHandler != null && mListenerRef != null) {
  75                 // this is good idea because onPageStarted is not running in the UI thread
  76                 mListenerHandler.post(new Runnable() {
  77                     @Override
  78                     public void run() {
  79                         SsoWebViewClientListener listener = mListenerRef.get();
  80                         if (listener != null) {
  81                             listener.onSsoFinished(cookies);
  82                         }
  83                     }
  84                 });
  85             }
  86         }
  87     }
  88
  89     @Override
  90     public void onFormResubmission (WebView view, Message dontResend, Message resend) {
  91         //Log_OC.e(TAG, "onFormResubMission ");
  92
  93         // necessary to grant reload of last page when device orientation is changed after sending a form
  94         resend.sendToTarget();
  95     }
  96
  97     /*
  98     @Override
  99     public boolean shouldOverrideUrlLoading(WebView view, String url) {
 100         //view.loadUrl(url);
 101         return false;
 102     }
 103
 104     @Override
 105     public void onReceivedError (WebView view, int errorCode, String description, String failingUrl) {
 106         Log_OC.e(TAG, "onReceivedError : " + failingUrl);
 107     }
 108
 109     @Override
 110     public void doUpdateVisitedHistory (WebView view, String url, boolean isReload) {
 111         Log_OC.e(TAG, "doUpdateVisitedHistory : " + url);
 112     }
 113
 114     @Override
 115     public void onReceivedSslError (WebView view, SslErrorHandler handler, SslError error) {
 116         Log_OC.e(TAG, "onReceivedSslError : " + error);
 117     }
 118
 119     @Override
 120     public void onReceivedHttpAuthRequest (WebView view, HttpAuthHandler handler, String host, String realm) {
 121         Log_OC.e(TAG, "onReceivedHttpAuthRequest : " + host);
 122     }
 123
 124     @Override
 125     public void onPageFinished (WebView view, String url) {
 126         Log_OC.e(TAG, "onPageFinished : " + url);
 127     }
 128
 129     @Override
 130     public WebResourceResponse shouldInterceptRequest (WebView view, String url) {
 131         Log_OC.e(TAG, "shouldInterceptRequest : " + url);
 132         return null;
 133     }
 134
 135     @Override
 136     public void onLoadResource (WebView view, String url) {
 137         Log_OC.e(TAG, "onLoadResource : " + url);
 138     }
 139
 140     @Override
 141     public void onReceivedLoginRequest (WebView view, String realm, String account, String args) {
 142         Log_OC.e(TAG, "onReceivedLoginRequest : " + realm + ", " + account + ", " + args);
 143     }
 144
 145     @Override
 146     public void onScaleChanged (WebView view, float oldScale, float newScale) {
 147         Log_OC.e(TAG, "onScaleChanged : " + oldScale + " -> " + newScale);
 148     }
 149
 150     @Override
 151     public void onUnhandledKeyEvent (WebView view, KeyEvent event) {
 152         Log_OC.e(TAG, "onUnhandledKeyEvent : " + event);
 153     }
 154
 155     @Override
 156     public boolean shouldOverrideKeyEvent (WebView view, KeyEvent event) {
 157         Log_OC.e(TAG, "shouldOverrideKeyEvent : " + event);
 158         return false;
 159     }
 160     */
 161
 162 }