用RESTY-HTTP实现Graylog的Widget更新与查询

作者：糖果

MoonScript for GrayLog是之前写的一个基于Lapis与Simple HTTP的Graylog日志查询SDK，
支持Stream查询，最近为了做自动化分析，加入了新的接口中调用功能，加入了对Dashboard
widgets和更新与查询，通过这个程序，实现一些反扫逻辑。

@putRequest:(req_url, data) =>
    http = require "resty.http"
    httpc = http.new()
    metadata = {
      method:"PUT",
      body: data,
      headers: self.headers_info
    }

    res, err = httpc\request_uri(req_url, metadata)

    if not res
      ngx.say("failed to request: ", err)
      return
    return res.body


@updateWidget: (dashboardId, widgetId,jsonBody) =>
    errList = {}
    if type(dashboardId) == 'nil'
        table.insert(errList, "dashboard id is nil\n")

    if type(widgetId) == 'nil'
        table.insert(errList, "widget id is nil\n")

    if type(jsonBody) == 'nil'
        table.insert(errList, "json body is nil\n")

    num = table.getn(errList) 
    if num > 0 
        return errList


    url = "http://"..self.host..":"..self.port
    req_url = url..'/dashboards/'..dashboardId..'/widgets/'..widgetId

    self.headers_info = {
        'Authorization': self.auth, 
        'Accept': '*/*',
        'Content-Type':'application/json'
    }

    self\putRequest req_url, jsonBody
    return 1


@getRequest:(req_url) =>
    http = require "resty.http"
    httpc = http.new()
    metadata = {
      method:"GET",
      headers: self.headers_info
    }

    res, err = httpc\request_uri(req_url, metadata)

    if not res
      ngx.say("failed to request: ", err)
      return

    ngx.status = res.status
    return res.body


@getWidgetValue: (dashboardId, widgetId) =>
    errList = {}
    if type(dashboardId) == 'nil'
        table.insert(errList, "dashboard id is nil\n")

    if type(widgetId) == 'nil'
        table.insert(errList, "widget id is nil\n")

    num = table.getn(errList) 
    if num > 0 
        return errList

    url = "http://"..self.host..":"..self.port
    req_url = url..'/dashboards/'..dashboardId..'/widgets/'..widgetId..'/value'

    self.headers_info = {
        'Authorization': self.auth, 
        'Accept': 'application/json',
    }

    ret = self\getRequest req_url
    return ret
    

这次没有使用过去端末加JSON数据请求的方式，把simple http换成了RESTY-HTTP,项目名改
了，叫“Finder”。

本文请不要用于商业目地，非商业转载请署名原作者与原文链接。
https://www.moonscript.cn/openresty/resty-http-for-graylog/