需求

现网有部分pop点独立于海外，无法发送日志给内网日志服务器，同时最近网内有比较重要割接，所以临时写一个脚本来展示网内日志

思路

使用socket接收syslog数据，udp 514，数据部分格式化后写入js文档，html调用js文档来实现日志可视化

效果

1867671-20210409185825286-989944713.png

python代码

import socket,re,os
def syslog(data):
    try:
        data = data.replace('\"','\'')
        pri = re.findall('\d+',data)[0]
        pri = int(pri)
        level = re.findall('<\d+>',data)[0]
        div_class = 'debug'
        if pri%8 == 0:
            data = data.replace(level,'emerg ')
            div_class = 'error'
        elif pri%8 == 1:
            data = data.replace(level,'alert ')
            div_class = 'error'
        elif pri%8 == 2:
            data = data.replace(level,'crit ')
            div_class = 'error'
        elif pri%8 == 3:
            data = data.replace(level,'error ')
            div_class = 'error'
        elif pri%8 == 4:
            data = data.replace(level,'warning ')
            div_class = 'warning'
        elif pri%8 == 5:
            data = data.replace(level,'notice ')
        elif pri%8 == 6:
            data = data.replace(level,'info ')
        elif pri%8 == 7:
            data = data.replace(level,'debug ')
    except Exception as e:
        data = 'error:%s'%e
        div_class = 'error'
    return data,div_class

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
address = ('192.168.10.60',514)
s.bind(address)
while True:
    data,address = s.recvfrom(10240)
    data = data.decode(encoding='utf8')
    data,div_class = syslog(data)
    print(data)
    with open ('./log.js','a') as f:
        f.write(''' \n$('#log').prepend("<div class = '%s'>%s</div>")'''%(div_class,data.rstrip()))

前端 代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf8">
    <meta http-equiv="Refresh" content="60" >
    <title>syslog</title>
   <script src="jquery-3.6.0.slim.min.js"></script>
    <style>
        *{margin:0; padding: 0;}
        .debug{background-color: rgb(175, 175, 248);}
        .warning{background-color:yellow;}
        .error{background-color: red;}
    </style>
</head>
<body>
<div id="log">
</div>
<script src="log.js">
</script>
</body>
</html>