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  1. 添加echo-nginx-module模块

    • git clone https://github.com/openresty/echo-nginx-module.git /usr/local/echo-nginx-module
    • 切换到nginx源码目录 cd /usr/local/src/nginx
    • 重新执行 ./configure –prefix=/usr/local/nginx –add-module=/usr/local/echo-nginx-module

    • 若提示错误少什么依赖就安装相应的依赖，无提示则执行 make && make install

    • 网上还有另一种方法,同理可以添加别的模块

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    git clone https://github.com/nginx/nginx.git
    git submodule add git@github.com:openresty/echo-nginx-module.git
    #重新配置nginx,把echo-nginx-module模块编译进nginx可执行文档
    sudo ./configure --add-module=echo-nginx-module

  2. 安装 ngx_devel_kit (NDK) 模块

  3. 添加lua-nginx-module模块

  4. 重新编译nginx

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    ./configure --prefix=/usr/local/nginx 
                --with-ld-opt="-Wl,-rpath,$LUAJIT_LIB" 
                --add-module=/usr/local/ngx_devel_kit  
                --add-module=/usr/local/echo-nginx-module 
                --add-module=/usr/local/lua-nginx-module 
    make -j2 
    make install

  5. 重启nginx服务器

  6. 测试Lua，在nginx.conf配置文档server代码块中加入以下代码：

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    location /echo { 
        default_type 'text/plain'; 
        echo 'install echo module success!'; 
    } 
    location /lua { 
        default_type 'text/plain'; 
        content_by_lua 'ngx.say("install lua module success!")'; 
    }

  7. curl http://localhost/echo // 正常的话输出：install echo module success!

  8. curl http://localhost/lua // 正常的话输出：install lua module success!

二、实现

  1. 实现原理：通过在nginx上进行访问限制，通过lua来灵活实现业务需求，redis用于存储黑名单列表

  2. 具体过程

    • step1:lua代码(post请求，ip地址黑名单，请求参数中imsi,tel值和黑名单)
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    [root@git-server ~]# cat /usr/local/nginx/conf/lua/ipblacklist.lua
    ngx.req.read_body()

    local redis = require "resty.redis"
    local red = redis.new()
    red.connect(red, '127.0.0.1', '6379')

    local myIP = ngx.req.get_headers()["X-Real-IP"]
    if myIP == nil then
       myIP = ngx.req.get_headers()["x_forwarded_for"]
    end
    if myIP == nil then
       myIP = ngx.var.remote_addr
    end

    if ngx.re.match(ngx.var.uri,"^(/webapi/).*$") then
        local method = ngx.var.request_method
        if method == 'POST' then
            local args = ngx.req.get_post_args()

            local hasIP = red:sismember('black.ip',myIP)
            local hasIMSI = red:sismember('black.imsi',args.imsi)
            local hasTEL = red:sismember('black.tel',args.tel)
            if hasIP==1 or hasIMSI==1 or hasTEL==1 then
                --ngx.say("This is 'Black List' request")
                ngx.exit(ngx.HTTP_FORBIDDEN)
              end
            else
                --ngx.say("This is 'POST' request")
                ngx.exit(ngx.HTTP_FORBIDDEN)
              end
             end
    • step2:修改nginx.conf
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    location / {
    root html;
    index index.html index.htm;
    access_by_lua_file /usr/local/nginx/conf/lua/ipblacklist.lua;
    proxy_pass http://127.0.0.1:8080;
       client_max_body_size 1m;
    }
    • step3:添加黑名单规则数据
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    redis-cli sadd black.ip '192.160.10.10'
    redis-cli sadd black.imsi '460123456789'
    redis-cli sadd black.tel '15888888888'
    • step4:验证结果
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    curl -d "imsi=460123456789&tel=15800000000" "http://yourdomain/index.php"
    		 
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