require 'config'


local optionIsOn = function (options) return options == "on" and true or false end
local Attacklog = optionIsOn(attacklog)
local logpath = logdir

local function getClientIp()
    IP  = ngx.var.remote_addr 
    if IP == nil then
            IP  = "unknown"
    end
    return IP
end

local function write(logfile,msg)
    local fd = io.open(logfile,"ab")
    if fd == nil then return end
    fd:write(msg)
    fd:flush()
    fd:close()
end

function log(data, ruletag, fp)
    if Attacklog then
        local fingerprint = fp or ''
        local realIp = getClientIp()
        local method = ngx.var.request_method
        local ua = ngx.var.http_user_agent
        local servername=ngx.var.server_name
        local url = ngx.var.request_uri
        local time=ngx.localtime()
        if ua  then
            line = realIp.." ["..time.."] \""..method.." "..servername..url.."\" \""..ruletag.."\"  \""..ua.."\" \""..data.."\" \""..fingerprint.."\"\n"
        else
            line = realIp.." ["..time.."] \""..method.." "..servername..url.."\" \""..ruletag.."\" - \""..data.."\" \""..fingerprint.."\"\n"
        end
        local filename = logpath..'/'..servername.."_"..ngx.today().."_sec.log"
        write(filename,line)
    end
end