一、验证lua geoIp2是否缺少依赖
1、执行命令
/usr/local/openresty/bin/opm get anjia0532/lua-resty-maxminddb

执行安装命令报错,缺少Digest/MD5依赖
2、Digest/MD5依赖
yum -y install perl-Digest-MD5

GeoIP2 lua库依赖动态库安装,lua库依赖libmaxminddb实现对mmdb的高效访问
二、安装libmaxminddb数据库
cd /data/file/
wget https://github.com/maxmind/libmaxminddb/releases/download/1.12.2/libmaxminddb-1.12.2.tar.gz
tar -zxf libmaxminddb-1.12.2.tar.gz
cd libmaxminddb-1.12.2
./configure
make && make install
sh -c "echo /usr/local/lib >> /etc/ld.so.conf.d/local.conf"
ldconfig
三、编写操作geoIp的lua脚本
--引入Redis
local redis = require "resty.redis";
--引入rsa
local rsa = require "resty.rsa";
--引入maxminddb库
local geo=require 'resty.maxminddb';
--Redis链接ip
local ip = "192.168.0.145"
--Redis链接端口
local port = 6379
--Redis连接密码
local pass = "aa123456"
--鉴权Redis
local function connAuth()
local red = redis:new();
local connCount, err = red:connect(ip, port);
if not connCount then
ngx.say("failed to connect: ", err)
close_redis(red)
return
end
red:set_timeouts(2000);
local ok, err = red:auth(pass)
if not ok then
ngx.say("failed to auth: ", err)
close_redis(red)
return
end
return red
end
--关闭Redis
local function close_redis(red)
if not red then
return
end
--释放连接(连接池实现)
local pool_max_idle_time = 10000
local pool_size = 100
local ok, err = red:set_keepalive(pool_max_idle_time, pool_size)
if not ok then
ngx.say("set keepalive error : ", err)
end
end
--获取请求者IP
local function getIp()
local clientIP = ngx.req.get_headers()["X-Real-IP"]
if clientIP == nil then
clientIP = ngx.req.get_headers()["x_forwarded_for"]
end
if clientIP == nil then
clientIP = ngx.var.remote_addr
end
return clientIP
end
--获取用户访问IP
local clientIP = getIp();
--封禁token时间(秒)
local token_block_time= 120
--指定token访问频率计数最大值(次)
local token_max_count = 3
--如果数据为空的情况下
local function is_empty(value)
if type(value) == "table" then
return next(value) == nil
elseif type(value) == "string" then
return #value == 0
elseif type(value) == "nil" then
return true
end
return false
end
--过滤特殊字符串(只保留字母与数字,字母不区分大小写)
local function filter_special_chars(s)
local ss = {}
local k = 1
while true do
if k > #s then break end
local c = string.byte(s,k)
if not c then break end
if c<192 then
if (c>=48 and c<=57) or (c>= 65 and c<=90) or (c>=97 and c<=122) then
table.insert(ss, string.char(c))
end
k = k + 1
end
end
return table.concat(ss)
end
if not geo.initted() then
geo.init("/usr/share/GeoIP/GeoLite2-Country.mmdb")
end
--如果头部信息没有指定的参数或是指定参数的值无法解析,加入IP黑名单
--如果同样的头部参数键在封禁token时间内连续访问指定token访问频率计数最大值次以上,加入IP黑名单
local function set_blacklist()
local header = ngx.req.get_headers();
local red = connAuth();
-- 检测ip
local res,err=geo.lookup(clientIP)
if not res then
local res, err = red:sismember('black-list', clientIP);
if res ~= 1 then
red:sadd('black-list', clientIP)
end
close_redis(red)
return ngx.exit(401)
else
for k,v in pairs(res) do
--只获取国家
if(k == "country") then
--获取国家编码
for key,item in pairs(v) do
if (key=="iso_code" and "CN" ~= item) then
local res, err = red:sismember('black-list', clientIP);
if res ~= 1 then
red:sadd('black-list', clientIP)
end
close_redis(red)
return ngx.exit(401)
end
end
end
end
end
end
-- 查看是否在黑名单里面
local function get_blacklist()
local red = connAuth();
local res, err = red:sismember('black-list', clientIP);
if res == 1 then
close_redis(red);
return ngx.exit(401);
end
close_redis(red);
end
get_blacklist();
set_blacklist();
四、nginx域名配置引用
location / {
access_by_lua_file /data/wwwroot/rsa-redis.lua;
try_files $uri $uri/ /index.html;
}
在你需要应用的地方加上就行