60 lines
2.1 KiB
Python
Executable file
60 lines
2.1 KiB
Python
Executable file
#!/usr/bin/env python3
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import requests
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import json
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import icalendar
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import datetime
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import hashlib
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import time
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import re
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import sys
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OFFSET = -time.timezone
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events_url = "https://bitlair.nl/Special:Ask/-5B-5BCategory:Event-5D-5D-20-5B-5BStart::%E2%89%A519-20January-202023-5D-5D/-3FStart/-3FEnd/-3FEvent-20location/mainlabel%3D/limit%3D50/order%3DASC/sort%3DStart/prettyprint%3Dtrue/format%3Djson"
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# above URL asks for all events and returns their name, start, end and location
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events_page = requests.get(events_url)
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events = events_page.json()
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cal = icalendar.Calendar()
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# Some properties are required to be compliant
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cal.add('prodid', '-//Bitlair event calendar//bitlair.nl//')
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cal.add('version', '2.0')
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for key, value in events['results'].items():
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# unix timestamps from semwiki are not in UTC but in $localtime
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start_time = int(value['printouts']['Start'][0]['timestamp']) - OFFSET
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end_time = int(value['printouts']['End'][0]['timestamp']) - OFFSET
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# remove preceding 'Events/YYYY-MM-DD ' if existant from pagename to result in the actual event name
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result = re.search(r"Events\/....-..-.. (.*)", key)
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if result:
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groups = result.groups()
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if len (groups) == 1:
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eventname = groups[0]
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else:
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eventname = key
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else:
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eventname = key
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event = icalendar.Event()
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event.add('summary', eventname)
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event.add('description', f'{key}\n {value["fullurl"]}')
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event.add('dtstamp', datetime.datetime.now())
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event.add('dtstart', datetime.datetime.fromtimestamp(start_time))
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event.add('dtend', datetime.datetime.fromtimestamp(end_time))
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event.add('url', value['fullurl'])
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event['location'] = icalendar.vText(value['printouts']['Event location'][0]['fulltext'])
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url_hash_substr = hashlib.md5(value["fullurl"].encode()).hexdigest()[0:10]
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# we need to use something that is relatively safe as a UID, so use the first 10 characters of the hexdigest of the wikiurl
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event['uid'] = f'{url_hash_substr}@bitlair.nl'
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# Add the event to the calendar
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cal.add_component(event)
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f = open(sys.argv[1], 'wb')
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f.write(cal.to_ical())
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f.close()
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