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69 lines
1.5 KiB
JavaScript
69 lines
1.5 KiB
JavaScript
'use strict';
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const http = require('http')
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const fs = require('fs')
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const port = process.argv[2] || 4444
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const logfile = process.argv[3] || '/tmp/logs.json'
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const resHeaders = {
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'Access-Control-Allow-Origin': '*',
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'Access-Control-Allow-Headers': 'content-type',
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'Content-Type': 'text/plain',
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}
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const handleLog = (req, res) => {
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let body = ''
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req.on('data', chunk => {
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body += chunk.toString()
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})
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req.on('end', () => {
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try {
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const msg = JSON.parse(body)
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msg.logclient = {
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ip: req.connection.remoteAddress,
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ua: req.headers['user-agent']
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}
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fileStream.write(JSON.stringify(msg))
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fileStream.write('\n')
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res.writeHead(200, 'ok', resHeaders)
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res.end('ok')
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} catch (err) {
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console.error(err)
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res.writeHead(400)
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res.end('invalid payload')
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}
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});
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}
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const requestHandler = (req, res) => {
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console.log(req.method, req.url)
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switch(req.method) {
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case 'OPTIONS':
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res.writeHead(200, 'ok', resHeaders)
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return res.end('ok')
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case 'POST':
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if (req.url === '/log') return handleLog(req, res)
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default:
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res.writeHead(404)
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return res.end('not found')
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}
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}
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const fileStream = fs.createWriteStream(logfile, {
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encoding: 'utf-8',
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flags: 'a', // append
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})
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const server = http.createServer(requestHandler)
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server.listen(port, err => {
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if (err) {
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console.error(err)
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process.exit(1)
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}
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console.log('listening on', port)
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console.log('writing to', logfile)
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})
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