cn.loveapple.client.android.shiba.view.LoveappleWebViewClient.java Source code

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Here is the source code for cn.loveapple.client.android.shiba.view.LoveappleWebViewClient.java

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/*
 * $HeadURL$
 * $Author$
 * $Revision$
 * $Date$
 *
 * ====================================================================
 *
 * Copyright (C) 2008 by loveapple.cn
 *
 * All copyright notices regarding loveapple and loveapple CoreLib
 * MUST remain intact in the scripts, documents and source code.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public 
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Correspondence and Marketing Questions can be sent to:
 * info at loveapple
 *
 * @author: loveapple
 */
package cn.loveapple.client.android.shiba.view;

import static cn.loveapple.client.android.Constant.LOG_TAG;
import static cn.loveapple.client.android.Constant.SCHEMA_HTTPS_STR;
import static cn.loveapple.client.android.Constant.SCHEMA_HTTP_STR;
import static org.apache.commons.lang.StringUtils.isNotEmpty;
import static org.apache.commons.lang.StringUtils.isNumeric;

import java.util.HashSet;
import java.util.Set;

import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.builder.ToStringBuilder;

import android.graphics.Bitmap;
import android.util.Log;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import cn.loveapple.client.android.LoveappleHelper;
import cn.loveapple.client.android.shiba.ShibaFacadeActivity;
import cn.loveapple.client.android.util.StringUtils;

/**
 * WEB?
 * 
 * @author $Author$
 * @version $Revision$
 * @date $Date$
 * @id $Id$
 */
public class LoveappleWebViewClient extends WebViewClient {
    /**
     * ?
     */
    private ShibaFacadeActivity activity;
    /**
     * ????????
     */
    private Set<String> hostWhiteList;
    /**
     * ?????????
     */
    private Set<String> schemaWhiteList;

    public LoveappleWebViewClient(ShibaFacadeActivity activity) {
        super();
        this.activity = activity;
    }

    /**
     * ???
     */
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        super.onPageStarted(view, url, favicon);
        activity.setProgressBarIndeterminateVisibility(true);
    }

    /**
     * HTTP????URL?
     * 
     * @param view
     * @param url
     * @return
     */
    private String setLoadUrl4Proxy(String url) {
        // ??
        String proxyUrl = activity.getProxyUrl();
        if (isNotEmpty(proxyUrl)) {
            String[] urlStr = proxyUrl.split(":", 2);
            Log.d(LOG_TAG, "Proxy Host: " + ToStringBuilder.reflectionToString(urlStr));
            if (isNumeric(urlStr[1])) {
                LoveappleHelper.setProxy(activity, urlStr[0], Integer.parseInt(urlStr[1]));
            }
        }

        // HTTPURL?
        String baseUrl = activity.getHttpProxyUrl();

        if (StringUtils.isEmpty(baseUrl) || isWhiteSchema(url) || isWhiteHost(url)) {
            return url;
        }
        if (!url.startsWith(baseUrl)) {
            StringBuilder sb = new StringBuilder(url.length() + baseUrl.length());
            sb.append(baseUrl);
            sb.append('/');
            if (url.startsWith(SCHEMA_HTTP_STR)) {
                sb.append(url.substring(SCHEMA_HTTP_STR.length()));
                sb.insert(0, SCHEMA_HTTP_STR);
            } else if (url.startsWith(SCHEMA_HTTPS_STR)) {
                sb.append(url.substring(SCHEMA_HTTPS_STR.length()));
                sb.insert(0, SCHEMA_HTTPS_STR);
            } else {
                sb.append(url);
                sb.insert(0, SCHEMA_HTTP_STR);
            }
            url = sb.toString();
        }

        return url;
    }

    /**
     * 
     * {@inheritDoc}
     */
    @Override
    public void onLoadResource(WebView view, String url) {
        url = setLoadUrl4Proxy(url);
        super.onLoadResource(view, url);
        Log.d(LOG_TAG, "Access URL:" + url);
    }

    /**
     *  ???
     */
    @Override
    public void onPageFinished(WebView view, String url) {
        super.onPageFinished(view, url);
        activity.setProgressBarIndeterminateVisibility(false);
    }

    /**
     * ??????
     * 
     * @param url
     * @return
     */
    private boolean isWhiteSchema(String url) {
        if (schemaWhiteList == null) {
            return false;
        }
        for (String schema : schemaWhiteList) {
            if (url.startsWith(schema)) {
                return true;
            }
        }
        return false;
    }

    /**
     * ??????
     * 
     * @param url
     * @return
     */
    private boolean isWhiteHost(String url) {
        String host = StringUtils.getHost(url);
        if (StringUtils.isEmpty(host)) {
            return false;
        }
        for (String hostName : hostWhiteList) {
            if (host.endsWith(hostName)) {
                return true;
            }
        }
        return false;
    }

    /**
     * ???????????
     * @param hostWhiteList ????????
     */
    public void setHostWhiteList(String[] hostWhiteList) {
        this.hostWhiteList = new HashSet<String>();
        if (ArrayUtils.isEmpty(hostWhiteList)) {
            return;
        }
        for (String host : hostWhiteList) {
            this.hostWhiteList.add(host);
        }
    }

    /**
     * ????????????
     * @param schemaWhiteList ?????????
     */
    public void setSchemaWhiteList(String[] schemaWhiteList) {
        this.schemaWhiteList = new HashSet<String>();
        if (ArrayUtils.isEmpty(schemaWhiteList)) {
            return;
        }
        for (String schema : schemaWhiteList) {
            this.schemaWhiteList.add(schema);
        }
    }

    /**
     * URL
     * 
     * @param view
     * @param url
     * @return
     */
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        Log.d(LOG_TAG, "loading url:" + url);
        return super.shouldOverrideUrlLoading(view, url);
    }

}