ngx_dong.conf

lua_shared_dict limit 10m;

lua_package_path "/opt/molbase.inc/etc/nginx/?.lua;;";

init_by_lua '
    local lib = require "lib"  --getClientIp
';

server {
    listen 80;
    server_name dong.molbase.inc;
    access_log /opt/molbase.inc/log/nginx/dong.molbase.inc-access.log;
    error_log  /opt/molbase.inc/log/nginx/dong.molbase.inc-error.log;
    #location /demo {
        #default_type 'text/html';
        #add_header Content-Type "text/html;charset=utf-8";
        access_by_lua '
            ngx.header.content_type = "text/html;charset=utf-8"
            --2,60,3600,84600
            local limit = ngx.shared.limit
            local key = getClientIp()
            local value, flags = limit:get(key)
            if value==nil then
                value=tostring(os.time())
                --value=0
                success, err, forcible = limit:add(key,value)
            else
                --newval, err = limit:incr(key,1)
                limit:set(key,value..tostring(os.time()))
            end
            local v=string.sub(value,-10000)
            if string.len(v)>=10000 and os.time()-string.sub(v,1,10)<86400 then --> 一天内限1000次
            --if string.len(value)/10>1000 and os.time()-string.sub(value,1,10)<86400 then -- 一天内限1000次
                ngx.exit(500)
            else
            --    ngx.say(value)
                ngx.header["X-Dong"] = "86400:1000"
            end
            local v=string.sub(value,-5000)
            if string.len(v)>=5000 and os.time()-string.sub(v,1,10)<3600 then --> 一小时内限500次
                ngx.exit(500)
            else
            --    ngx.say(value)
                ngx.header["X-Dong"] = "3600:500"
            end
            local v=string.sub(value,-500)
            if string.len(v)>=500 and os.time()-string.sub(v,1,10)<60 then --> 一分钟内限50次
                ngx.exit(500)
            else
            --    ngx.say(value)
                ngx.header["X-Dong"] = "60:50"
            end
            local v=string.sub(value,-50)
            if string.len(v)>=50 and os.time()-string.sub(v,1,10)<2 then --> 一秒钟内限5次
                ngx.exit(500)
            else
            --    ngx.say(v)
                ngx.header["X-Dong"] = "2:5"
            end
            ngx.header["X-Dong"] = os.time()-string.sub(value,1,10)..":"..string.len(value)
            --ngx.exit(200)
        ';
        #return 200; #demo
    #}
}