X-Git-Url: http://git.linex4red.de/pub/Android/ownCloud.git/blobdiff_plain/ab946b9af69f3f299d72026db69f5f650096d8e8..6ace8ab1c18b23a4c016986256075cfda8e50104:/src/com/owncloud/android/authentication/SsoWebViewClient.java

diff --git a/src/com/owncloud/android/authentication/SsoWebViewClient.java b/src/com/owncloud/android/authentication/SsoWebViewClient.java
new file mode 100644
index 00000000..5c97931e
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+++ b/src/com/owncloud/android/authentication/SsoWebViewClient.java
@@ -0,0 +1,176 @@
+/* ownCloud Android client application
+ *   Copyright (C) 2012-2013 ownCloud Inc.
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License version 2,
+ *   as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.authentication;
+
+import java.lang.ref.WeakReference;
+
+import com.owncloud.android.Log_OC;
+
+
+import android.graphics.Bitmap;
+import android.os.Handler;
+import android.os.Message;
+import android.view.View;
+import android.webkit.CookieManager;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+
+
+/**
+ * Custom {@link WebViewClient} client aimed to catch the end of a single-sign-on process 
+ * running in the {@link WebView} that is attached to.
+ * 
+ * Assumes that the single-sign-on is kept thanks to a cookie set at the end of the
+ * authentication process.
+ *   
+ * @author David A. Velasco
+ */
+public class SsoWebViewClient extends WebViewClient {
+        
+    private static final String TAG = SsoWebViewClient.class.getSimpleName();
+    
+    public interface SsoWebViewClientListener {
+        public void onSsoFinished(String sessionCookie);
+    }
+    
+    private Handler mListenerHandler;
+    private WeakReference<SsoWebViewClientListener> mListenerRef;
+    private String mTargetUrl;
+    private String mLastReloadedUrlAtError;
+    
+    public SsoWebViewClient (Handler listenerHandler, SsoWebViewClientListener listener) {
+        mListenerHandler = listenerHandler;
+        mListenerRef = new WeakReference<SsoWebViewClient.SsoWebViewClientListener>(listener);
+        mTargetUrl = "fake://url.to.be.set";
+        mLastReloadedUrlAtError = null;
+    }
+    
+    public String getTargetUrl() {
+        return mTargetUrl;
+    }
+    
+    public void setTargetUrl(String targetUrl) {
+        mTargetUrl = targetUrl;
+    }
+
+    @Override
+    public void onPageStarted (WebView view, String url, Bitmap favicon) {
+        Log_OC.d(TAG, "onPageStarted : " + url);
+        super.onPageStarted(view, url, favicon);
+    }
+    
+    @Override
+    public void onFormResubmission (WebView view, Message dontResend, Message resend) {
+        Log_OC.d(TAG, "onFormResubMission ");
+
+        // necessary to grant reload of last page when device orientation is changed after sending a form
+        resend.sendToTarget();
+    }
+
+    @Override
+    public boolean shouldOverrideUrlLoading(WebView view, String url) {
+        return false;
+    }
+    
+    @Override
+    public void onReceivedError (WebView view, int errorCode, String description, String failingUrl) {
+        Log_OC.e(TAG, "onReceivedError : " + failingUrl + ", code " + errorCode + ", description: " + description);
+        if (!failingUrl.equals(mLastReloadedUrlAtError)) {
+            view.reload();
+            mLastReloadedUrlAtError = failingUrl;
+        } else {
+            mLastReloadedUrlAtError = null;
+            super.onReceivedError(view, errorCode, description, failingUrl);
+        }
+    }
+    
+    @Override
+    public void onPageFinished (WebView view, String url) {
+        Log_OC.d(TAG, "onPageFinished : " + url);
+        mLastReloadedUrlAtError = null;
+        if (url.startsWith(mTargetUrl)) {
+            view.setVisibility(View.GONE);
+            CookieManager cookieManager = CookieManager.getInstance();
+            final String cookies = cookieManager.getCookie(url);
+            //Log_OC.d(TAG, "Cookies: " + cookies);
+            if (mListenerHandler != null && mListenerRef != null) {
+                // this is good idea because onPageFinished is not running in the UI thread
+                mListenerHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        SsoWebViewClientListener listener = mListenerRef.get();
+                        if (listener != null) {
+                            listener.onSsoFinished(cookies);
+                        }
+                    }
+                });
+            }
+        }
+
+    }
+    
+    /*
+    @Override
+    public void doUpdateVisitedHistory (WebView view, String url, boolean isReload) {
+        Log_OC.d(TAG, "doUpdateVisitedHistory : " + url);
+    }
+    
+    @Override
+    public void onReceivedSslError (WebView view, SslErrorHandler handler, SslError error) {
+        Log_OC.d(TAG, "onReceivedSslError : " + error);
+    }
+    
+    @Override
+    public void onReceivedHttpAuthRequest (WebView view, HttpAuthHandler handler, String host, String realm) {
+        Log_OC.d(TAG, "onReceivedHttpAuthRequest : " + host);
+    }
+
+    @Override
+    public WebResourceResponse shouldInterceptRequest (WebView view, String url) {
+        Log_OC.d(TAG, "shouldInterceptRequest : " + url);
+        return null;
+    }
+    
+    @Override
+    public void onLoadResource (WebView view, String url) {
+        Log_OC.d(TAG, "onLoadResource : " + url);   
+    }
+    
+    @Override
+    public void onReceivedLoginRequest (WebView view, String realm, String account, String args) {
+        Log_OC.d(TAG, "onReceivedLoginRequest : " + realm + ", " + account + ", " + args);
+    }
+    
+    @Override
+    public void onScaleChanged (WebView view, float oldScale, float newScale) {
+        Log_OC.d(TAG, "onScaleChanged : " + oldScale + " -> " + newScale);
+        super.onScaleChanged(view, oldScale, newScale);
+    }
+
+    @Override
+    public void onUnhandledKeyEvent (WebView view, KeyEvent event) {
+        Log_OC.d(TAG, "onUnhandledKeyEvent : " + event);
+    }
+    
+    @Override
+    public boolean shouldOverrideKeyEvent (WebView view, KeyEvent event) {
+        Log_OC.d(TAG, "shouldOverrideKeyEvent : " + event);
+        return false;
+    }
+    */
+}