lua+nginx解析useragent实例

----------------------------------------razor_js.lua---------------------------------------------------------

local cjson = require("cjson")

local cjson_safe = require("cjson.safe")

local logger = require("logger")

local uuid4= require("uuid4")

local args   = {}

local request_method = ngx.var.request_method

--字符串分割函数

--传入字符串和分隔符，返回分割后的table

function string.split(str, delimiter)

if str==nil or str=='' or delimiter==nil then

return nil

end

    local result = {}

    for match in (str..delimiter):gmatch("(.-)"..delimiter) do

        table.insert(result, match)

    end

    return result

end

--字符串trim函数，去掉前后空格

function string.trim (s) return (string.gsub(s, "^%s*(.-)%s*$", "%1")) end

--解析UserAgent，获取移动设备访问的系统版本和设备型号

function getUAField(t)

local separator=';'

local tab={}

local android=string.find(t,"Android")

local iphone=string.find(t,"iPhone")

    if android  then

tab["platform"]="android"

local startIndex =string.find(t,"Build")

if startIndex ~= nil then

local res=string.sub(t,0,startIndex-1)

local rtable=string.split(res,separator)

local devicename=string.trim(rtable[#rtable])

if devicename~=nil then

tab["devicename"]=devicename

end

end

local osvTable=string.split(string.sub(t,android) ,separator)

if osvTable then

local osvTab=string.split(osvTable[1] ,' ')

tab["os_version"]=string.trim(osvTab[#osvTab])

end

end

if iphone  then

tab["platform"]="iOS"

tab["devicename"]="iphone"

local vs=string.find(t,"Version")

local osvTable=string.split(string.sub(t, vs) ,' ')

if osvTable then

print(osvTable[1])

local osvTab=string.split(osvTable[1] ,'/')

tab["os_version"]=string.trim(osvTab[#osvTab])

end

end

if  next(tab)  == nil then

tab["platform"]=""

tab["devicename"]=""

tab["os_version"]=""

end

return tab

end

--lua获取http请求参数的值

if "GET" == request_method then

    args = ngx.req.get_uri_args()

elseif "POST" == request_method then

    ngx.req.read_body()

    args = ngx.req.get_post_args()

end

--时间戳转换成指定的日期格式

function getTimeStamp(t)

    return os.date("%Y-%m-%d %H:%M:%S",t)

end

local field_map={idsite="appkey",url="activity",_id="deviceid",_viewts="time",res="resolution",lang="language",uid="useridentifier",e_c="category",e_n="event_identifier",lat="latitude",long="longtitude"}

if next(args) ~= nil then

response = '{"flag":"-1", "msg":"content error"}'

--clientdata

clientdata_arr ={}

clientdata_arr["localtime"] = ngx.localtime()

clientdata_arr["clientip"] = ngx.var.client_ip

uuid = uuid4.getUUID();

    clientdata_arr["uuid"] = uuid:gsub("-", "")

clientdata_arr["language"]=ngx.var.lang

local UATable,err=getUAField(ngx.var.http_user_agent)

clientdata_arr["devicename"]=UATable["devicename"]

clientdata_arr["os_version"]=UATable["os_version"]

clientdata_arr["platform"]=UATable["platform"]

clientdata_arr["cellid"]=-1

clientdata_arr["ismobiledevice"]=true

clientdata_arr["phonetype"]=0

clientdata_arr["imsi"]=""

clientdata_arr["mccmnc"]=""

clientdata_arr["lac"]=""

clientdata_arr["version"]=""

clientdata_arr["modulename"]=""

clientdata_arr["wifimac"]=""

clientdata_arr["havebt"]=true

clientdata_arr["havewifi"]=true

clientdata_arr["havegps"]="false"

clientdata_arr["havegravity"]=true

clientdata_arr["salt"]=""

clientdata_arr["lib_version"]=""

--event

event_arr={}

event_arr["localtime"] = ngx.localtime()

event_arr["clientip"] = ngx.var.client_ip

uuid = uuid4.getUUID();

    event_arr["uuid"] = uuid:gsub("-", "")

event_arr["lib_version"]=""

event_arr["version"]=""

event_arr["label"]=""

event_arr["attachment"]=""

--usinglog

usinglog_arr={}

usinglog_arr["localtime"] = ngx.localtime()

usinglog_arr["clientip"] = ngx.var.client_ip

uuid = uuid4.getUUID();

    usinglog_arr["uuid"] = uuid:gsub("-", "")

usinglog_arr["lib_version"]=""

usinglog_arr["version"]=""

for key, val in pairs(args) do

if key == "idsite" then

clientdata_arr["appkey"]=val

event_arr["appkey"]=val

usinglog_arr["appkey"]=val

elseif key == "_id" then

clientdata_arr["deviceid"]=val

clientdata_arr["useridentifier"]=val

event_arr["deviceid"]=val

event_arr["useridentifier"]=val

usinglog_arr["deviceid"]=val

usinglog_arr["useridentifier"]=val

elseif key == "_viewts" then

clientdata_arr["time"], err=getTimeStamp(val)

event_arr["time"], err=getTimeStamp(val)

usinglog_arr["end_millis"]=val

elseif key == "res" then

clientdata_arr["resolution"]=val

elseif key == "lat" then

clientdata_arr["latitude"]=val

elseif key == "long" then

clientdata_arr["longtitude"]=val

elseif key == "uid" then

local tmp=string.split(val,'_')

clientdata_arr["session_id"]=tmp[1]

event_arr["session_id"]=tmp[1]

usinglog_arr["session_id"]=tmp[1]

usinglog_arr["start_millis"]=tmp[#tmp]

elseif key == "url" then

event_arr["activity"]=val

usinglog_arr["activities"]=val

elseif key == "e_n" then

event_arr["event_identifier"]=val

elseif key == "e_v" then

event_arr["acc"]=val

end

response = '{"flag":"1", "msg":"OK"}'

end

--判断table是否为空

if next(clientdata_arr)  ~= nil then

log_line, err = cjson_safe.encode(clientdata_arr)

log_file = ngx.var.log_file_cd .. "." .. os.date(ngx.var.date_fmt, ngx.time())

logger.info(log_file, log_line)

end

if next(event_arr)  ~= nil then

log_line, err = cjson_safe.encode(event_arr)

log_file = ngx.var.log_file_event .. "." .. os.date(ngx.var.date_fmt, ngx.time())

logger.info(log_file, log_line)

end

if next(usinglog_arr)  ~= nil then

if usinglog_arr["start_millis"] ~=nil and usinglog_arr["end_millis"] ~=nil then

usinglog_arr["duration"]=tonumber(usinglog_arr["end_millis"]) - tonumber(usinglog_arr["start_millis"])

usinglog_arr["end_millis"]=getTimeStamp(usinglog_arr["end_millis"])

usinglog_arr["start_millis"]=getTimeStamp(usinglog_arr["start_millis"])

end

log_line, err = cjson_safe.encode(usinglog_arr)

log_file = ngx.var.log_file_usinglog .. "." .. os.date(ngx.var.date_fmt, ngx.time())

logger.info(log_file, log_line)

else

response = '{"flag":"-1", "msg":"' .. err .. '"}'

end

ngx.say(response)

else

  ngx.say('{"flag":"-1", "msg":"No post data found"}')

end

---------------------------------------------------------------------------nginx中配置-----------------------------------------

location /webjs {
    default_type text/plain;
    set $log_file_cd '/data/razor_post/cd/cd.log';
    set $log_file_event '/data/razor_post/event/event.log';
    set $log_file_usinglog '/data/razor_post/usinglog/usinglog.log';
    content_by_lua_file lua/razor_js.lua;
  }