249建站之家:使用nginx做内容过滤和反向代理

约定:本文源代码目录统一放在:/root/soft/src 里。

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安装


安装此模块需要先安装 sregex 运行库:


$ git clone https://github.com/agentzh/sregex

$ cd sregex

$ make

$ make install

然后安装 replace-filter-nginx-module 模块:


$ cd /root/soft/src

$ git clone https://github.com/agentzh/replace-filter-nginx-module

$ wget http://nginx.org/download/nginx-1.12.2.tar.gz

$ tar zxvf nginx-1.12.2.tar.gz

这里采用静态编译的方式安装模块,需要重新编译 nginx 。获取 nginx 上一次编译参数:


$ nginx -V

nginx version: nginx/1.12.2

built by gcc 4.4.7 20120313 (Red Hat 4.4.7-16) (GCC) 

built with OpenSSL 1.0.1e-fips 11 Feb 2013

TLS SNI support enabled

configure arguments: --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module --with-ipv6 --with-http_sub_module --with-ld-opt=-ljemalloc --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module 

这里添加 replace-filter-nginx-module 模块:


--add-module=/root/soft/src/replace-filter-nginx-module 最终编译命令:


cd nginx-1.12.2

$  ./configure --user=www --group=www --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_gzip_static_module --with-ipv6 --with-http_sub_module --with-ld-opt=-ljemalloc --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --add-module=/root/soft/src/replace-filter-nginx-module

$ make

由于这里是升级nginx,所以千万不要make install,不然就真的覆盖了。 接下来手动替换二进制文件:


$ cp /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak

$ cp -rfp ./objs/nginx /usr/local/nginx/sbin/

测试是否可行:


$ nginx -v

nginx version: nginx/1.12.2

配置是否正常:


$ /usr/local/nginx/sbin/nginx -t

nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok

nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

配置


这里测试的是:把接口返回的 img.test.com 换成 media.test.com。


修改:/usr/local/nginx/conf/vhost/test.com.conf


location ~ [^/]\.php(/|$)

{

    # comment try_files $uri =404; to enable pathinfo

    try_files $uri =404;

    fastcgi_pass  127.0.0.1:9000;

    fastcgi_index index.php;

    include fastcgi.conf;

}

为:


location ~ [^/]\.php(/|$)

{

    replace_filter 'img.test.com' 'media.test.com' g;

    replace_filter_types application/json;

    # comment try_files $uri =404; to enable pathinfo

    try_files $uri =404;

    fastcgi_pass  127.0.0.1:9000;

    fastcgi_index index.php;

    include fastcgi.conf;

注意需要添加replacefiltertypes。


保存后检查配置是否ok:


$ /usr/local/nginx/sbin/nginx -t

nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok

nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

然后热重启:


# 升级完成第一次需要重启

$ service nginx restart 

# 热重启

$ /usr/local/nginx/sbin/nginx -s reload

参考


1、已安装nginx动态添加模块 http://coolnull.com/4245.html 2、LNMP平滑升级nginx并安装ngxlua模块教程 http://www.mamicode.com/info-detail-1110824.html 3、openresty/replace-filter-nginx-module: Streaming regular expression replacement in response bodies https://github.com/openresty/replace-filter-nginx-module#synopsis 4、比ngxhttpsubstitutionsfilter_module 更强大的替换模块sregex的replace-filter-nginx-module https://www.cnblogs.com/archoncap/p/4973009.html


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