Atitit.实现反向代理(1)----url rewrite 配置and内容改写 and -绝对路径链接改写 java php

Atitit.实现反向代理(1)----url rewrite 配置and内容改写 and -绝对路径链接改写 java php



1. 代理的实现:::普通代理and反向代理??
1

2. url rewrite 的框架选型 1

3. ---------反向代理rewrite 配置mode_rewrite 1

1. Java的实现 2

4. 排除自身(apache_mode_rewrite) 2

2. Java的实现 排除自身 2

5. 内容改写(php mode_rwt) 3

3. Java 内容改写 3

6. 内容改写---绝对路径链接改写 4

4. Abs url 2 /app/http://xxxxxx.jpg 4

5. Filter 二次导航 4

6. 判断and代替改写 5

7. 引用 6

1. 代理的实现:::普通代理and反向代理??

普通代理设置麻烦的,韩式反向代理容易的实现..



反向代理使用流程:: localhost/vod/ >>url rewrite >>>内容更改

2. url rewrite 的框架选型

Php的mode_rewrite好的...java的org.tuckey.web.filters.urlrewrite.UrlRewriteFilter 不太好使用,,,子好嘎自实现兰...



作者::老哇的爪子Attilax艾龙，EMAIL:1466519819@qq.com

转载请注明来源：http://blog.csdn.net/attilax

3. ---------反向代理rewrite 配置mode_rewrite

RewriteCond %{REQUEST_URI} !=/process.php

RewriteRule ^(.*)$ /process.php?file=http://www.budejie.com/$1&noext=1 [L] [L]

1. Java的实现

<!--o8j2 -->

<filter>

<filter-name>urlrwt</filter-name>

<filter-class>com.attilax.net.urlRewriteFilterAti</filter-class>



</filter>



<filter-mapping>

<filter-name>urlrwt</filter-name>

<url-pattern>/*</url-pattern>

</filter-mapping>



<!-- end o8j2-->





RequestDispatcher requestDispatcher = request.getRequestDispatcher("/spr/txtrwt?url="+url+"&urlNoHost="+url_noHost2);

requestDispatcher.forward(request, response);//

4. 排除自身(apache_mode_rewrite)

RewriteCond %{REQUEST_URI} !=/process.php

RewriteCond %{REQUEST_URI} !^.*(\.js|\.gif|\.png|\.jpg|\.jpeg|\.xml|\.ico|\.css)





#other pic css js proxy

RewriteCond %{REQUEST_URI} !=/process.php

RewriteCond %{REQUEST_URI} !=/lensyaohwer/basic.png

RewriteRule ^(.*)$ http://lengxiaohua.com/$1 [P,L]

2. Java的实现 排除自身

//except

if(requestURI.contains("spr/txtrwt"))

{

chain.doFilter(request, response);

return;

}

5. 内容改写(php mode_rwt)

a.文本正则表达式方式

$content=preg_replace('/百思不得姐/', '哈米', $content);

$content=str_replace('http://img.spriteapp.cn/ws/www/img/layout/logo.png', 'http://img.spriteapp.cn/ws/www/img/layout/logoxx.png', $content);

$content=str_replace('不得姐', '哈米', $content);



b.html dom 方式

//nbp

require_once "simple_html_dom.php";

$html = str_get_html($content);

$arr= $html->find('.web_content_right .web_right_down',0) ;

$arr->innertext='a2';

echo $html ;

3. Java 内容改写

@RequestMapping(value = "/txtrwt", produces = "text/plain;charset=gb2312")

// @ResponseBody

public Object process(HttpServletRequest request,

HttpServletResponse response) throws Exception {

core.log("=========process.json");

String url = "" + request.getParameter("url");// +"?"+request.getQueryString();

String url_no_host=request.getParameter("urlNoHost");

// System.out.println(); request.getParameter("tid")

System.out.println(request.getQueryString());

if (url.endsWith("jpg") || url.endsWith("jpeg") || url.endsWith("gif")) {

if(url_no_host.startsWith("/http://"))

{

String url3=url_no_host.replaceAll("/http://", "http://");

byte[] ba = websitex.WebpageContent_Bin(url3);

if( !isLjJpg(ba) )

outputImg(response, url);

}

else

outputImg(response, url);

}

//

else

outputTxt(response, url,request);

return null;

}

6. 内容改写---绝对路径链接改写

4. Abs url 2 /app/http://xxxxxx.jpg

private void outputTxt(HttpServletResponse response, String url, HttpServletRequest request)

throws UnsupportedEncodingException, IOException {



Map<String, String> headProps = Mapx

.<String, String> $()

.add("Cookie",

"lastfid=0; lastvisit=9271%091408838229%09%2Fread.php%3Ftid%3D1715718%26fpage%3D2; ol_offset=32204; ipstate=1408836660; __utma=99888095.1396678057.1405101634.1408806230.1408837132.29; __utmz=99888095.1405101634.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmc=99888095; pin6=done; __utmb=99888095.3.10.1408837132")

.toMap() ;





String txt=websitex.WebpageContentO8f (url,"gbk",headProps);

txt=txt.replaceAll("http://", pathx.webAppPath_webfmt(request)+ "/http://");

5. Filter 二次导航

if(url_noHost.startsWith("/http://"))

{

String url5=url_noHost.substring(1, url_noHost.length());

String url5_encode= URLEncoder.encode(url5);

RequestDispatcher requestDispatcher = request.getRequestDispatcher("/spr/imgrwt_abspath?url="+url5_encode+"&urlNoHost="+url_noHost2);

requestDispatcher.forward(request, response);//

return;

}

6. 判断and代替改写

@RequestMapping(value = "/imgrwt_abspath")

// @ResponseBody

public Object process_imgrwt_abspath(HttpServletRequest request,

HttpServletResponse response) {

core.log("=========process.json");

String url = "" + request.getParameter("url");// +"?"+request.getQueryString();

String url_no_host = request.getParameter("urlNoHost");

// System.out.println(); request.getParameter("tid")

System.out.println(request.getQueryString());



byte[] ba = websitex.WebpageContent_Bin(url);

if (!isLjJpg(ba))

outputImg(response, url);

if(isLjJpg(ba))

outputImg_garfile_holder(response );

return null;

}

/**

@author attilax 老哇的爪子

\t@since Aug 23, 2014 8:48:02 PM$

* @param response

*/

private void outputImg_garfile_holder(HttpServletResponse response) {

// attilax 老哇的爪子 8:48:02 PM Aug 23, 2014



{

String url = pathx.classPath() + "/com/attilax/clr/def.jpg";

byte[] ba = filex.readImageData(url);

outputImg(response, url, ba);

}



}

7. 引用

paip.基于urlrewrite的反向代理以及内容改写