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.view.View;
  25 import android.webkit.CookieManager;
  26 import android.webkit.WebView;
  27 import android.webkit.WebViewClient;
  28
  29 import com.owncloud.android.Log_OC;
  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             if (mListenerHandler != null && mListenerRef != null) {
  74                 // this is good idea because onPageStarted is not running in the UI thread
  75                 mListenerHandler.post(new Runnable() {
  76                     @Override
  77                     public void run() {
  78                         SsoWebViewClientListener listener = mListenerRef.get();
  79                         if (listener != null) {
  80                             listener.onSsoFinished(cookies);
  81                         }
  82                     }
  83                 });
  84             }
  85         }
  86     }
  87
  88     @Override
  89     public boolean shouldOverrideUrlLoading(WebView view, String url) {
  90         //view.loadUrl(url);
  91         return false;
  92     }
  93
  94     @Override
  95     public void onReceivedError (WebView view, int errorCode, String description, String failingUrl) {
  96         Log_OC.e(TAG, "onReceivedError : " + failingUrl);
  97     }
  98
  99     /*
 100
 101     @Override
 102     public void doUpdateVisitedHistory (WebView view, String url, boolean isReload) {
 103         Log_OC.e(TAG, "doUpdateVisitedHistory : " + url);
 104     }
 105
 106     @Override
 107     public void onReceivedSslError (WebView view, SslErrorHandler handler, SslError error) {
 108         Log_OC.e(TAG, "onReceivedSslError : " + error);
 109     }
 110
 111     @Override
 112     public void onReceivedHttpAuthRequest (WebView view, HttpAuthHandler handler, String host, String realm) {
 113         Log_OC.e(TAG, "onReceivedHttpAuthRequest : " + host);
 114     }
 115
 116     @Override
 117     public void onPageFinished (WebView view, String url) {
 118         Log_OC.e(TAG, "onPageFinished : " + url);
 119     }
 120
 121     @Override
 122     public WebResourceResponse shouldInterceptRequest (WebView view, String url) {
 123         Log_OC.e(TAG, "shouldInterceptRequest : " + url);
 124         return null;
 125     }
 126
 127     @Override
 128     public void onLoadResource (WebView view, String url) {
 129         Log_OC.e(TAG, "onLoadResource : " + url);
 130     }
 131
 132     @Override
 133     public void onFormResubmission (WebView view, Message dontResend, Message resend) {
 134         Log_OC.e(TAG, "onFormResubMission ");
 135         super.onFormResubmission(view, dontResend, resend);
 136     }
 137
 138     @Override
 139     public void onReceivedLoginRequest (WebView view, String realm, String account, String args) {
 140         Log_OC.e(TAG, "onReceivedLoginRequest : " + realm + ", " + account + ", " + args);
 141     }
 142
 143     @Override
 144     public void onScaleChanged (WebView view, float oldScale, float newScale) {
 145         Log_OC.e(TAG, "onScaleChanged : " + oldScale + " -> " + newScale);
 146     }
 147
 148     @Override
 149     public void onUnhandledKeyEvent (WebView view, KeyEvent event) {
 150         Log_OC.e(TAG, "onUnhandledKeyEvent : " + event);
 151     }
 152
 153     @Override
 154     public boolean shouldOverrideKeyEvent (WebView view, KeyEvent event) {
 155         Log_OC.e(TAG, "shouldOverrideKeyEvent : " + event);
 156         return false;
 157     }
 158
 159     */
 160 }