Send a Teams Webhook when JR 京都線 is delayed

jrdelay.py

#!/usr/bin/env python3
# coding: utf-8

import json

from urllib import request,parse
from lxml import html

WEBHOOK = 'https://127.1.1.1/' # Put your webhook endpoint here

URI = 'https://trafficinfo.westjr.co.jp/kinki.html'

XPATH_BASE = '//div[@id="syosai_1"][1]'
XPATH_IMG  = '//div[@id="contents"]//img[@usemap]'

fp = request.urlopen(URI)
parser = html.fromstring(fp.read())

dom = parser.xpath(XPATH_BASE + '/strong[1]/text()')
if len(dom) > 0 and u'列車の遅れなどの情報はありません' in dom[0]:
  print('Train operates normally!')
  exit()


image = None
dom = parser.xpath(XPATH_IMG)

if len(dom) > 0:
  image = parse.urljoin(fp.geturl(), dom[0].attrib.get('src'))


dom = parser.xpath(XPATH_BASE + '/div[@class="jisyo"]')

if len(dom) < 1:
  print('Possibly DOM structure has been changed!')
  exit(1)

topics = []
for elem in dom:
  areas    = []
  area_dom = elem.iterfind('div[@class="jisyo_contents"]/p')

  for area in area_dom:
    if area.find('span[@class="line"]') is not None:
      areas.append(
        {
          'line':    area.findtext('span[@class="line"]'),
          'station': area.findtext('span[@class="station"]').replace(u'　', ' '),
        }
      )

  topics.append(
    {
      'title':   elem.findtext('div[@class="jisyo_hdr"]/h2[@class="jisyo_title"]/a[@id]'),
      'image':   image,
      'summary': elem.xpath('string(div[@class="jisyo_contents"]/p[@class="gaiyo"])'),
      'areas':   areas,
      'history': parse.urljoin(
        fp.geturl(),
        elem.xpath('div[@class="jisyo_hdr"]/div[@class="jisyo_date"]//a[@href]')[0].attrib.get('href'),
      ),
    }
  )

for topic in topics:
  if not any(map(lambda area: '京都' in area['line'], topic['areas'])):
    print('Delayed, but it is not on 京都線')
    print(topic['areas'])
    continue

  payload = {}
  payload['title'] = topic['title']
  payload['text']  = """
<p><a href="{}">詳細・履歴</a></p>
<p>{}</p>
<ul>{}</ul>
<img src="{}" />
""".format(
  topic['history'],
  topic['summary'],
  '<li>' + '</li><li>'.join(map(lambda area: area['line'] + ': ' + area['station'], topic['areas'])) + '</li>',
  topic['image'],
)

  post = request.Request(WEBHOOK, json.dumps(payload).encode(), { 'Content-Type': 'application/json' })
  request.urlopen(post)