1 files changed, 110 insertions, 0 deletions
diff --git a/atc-recentchanges.py b/atc-recentchanges.py
new file mode 100755
index 0000000..f94f1b6
--- /dev/null
+++ b/atc-recentchanges.py
@@ -0,0 +1,110 @@
+#!/usr/bin/env -S python3
+from __future__ import annotations  # PEP 585 for Python 3.7 and 3.8
+import logging
+import requests
+import time
+import typing
+import urllib.parse
+
+
+ATW="https://wiki.archiveteam.org/"
+ATAPI = ATW + "api.php"
+
+def get_new(newestRc: typing.Optional[tuple[str, int]]) -> tuple[list[dict], tuple[str, int]]:
+	'''
+	Fetches edits made after newestRc = (newestTimestamp, newestRcId), which shall both refer to the last change already known/processed.
+	newestTimestamp is a timestamp in YYYY-MM-DDTHH:MM:SSZ format; newestRcId is the internal ID of the change.
+	The return value are the list of changes after newestRcId in chronological order (as returned by MW), and a new (newestTimestamp, newestRcId) tuple.
+	If newestRc is None, this returns an empty list of changes and the timestamp and rev ID of the most recent edit (for initialisation of a feed).
+	'''
+
+	logging.info(f'Fetching with newestRc = {newestRc!r}')
+	if newestRc is None:
+		newestTimestamp, newestRcId = None, None
+	else:
+		newestTimestamp, newestRcId = newestRc
+	rcend = f'&rcend={newestTimestamp}' if newestTimestamp else ''
+	r = requests.get(f'{ATAPI}?action=query&list=recentchanges&rcdir=older&format=json&rcprop=user|comment|timestamp|sizes|title|flags|ids|loginfo&continue=&rclimit=500{rcend}',
+	                 timeout = 5,
+	                )
+	r.raise_for_status()
+	o = r.json()
+	if not o['query']['recentchanges']:
+		return [], (newestTimestamp, newestRcId)
+	rc = o['query']['recentchanges']
+	changes = []
+	if newestRcId is not None:
+		for c in rc:
+			if c['rcid'] <= newestRcId:
+				break
+			changes.append(c)
+	return changes[::-1], (rc[0]['timestamp'], rc[0]['rcid'])
+
+
+def truncate(s: str, limit: int) -> str:
+	'''If s is longer than limit, split on words and return a truncated version no longer than limit.'''
+	if len(s) <= limit:
+		return s
+	words = s.split(' ')
+	trunLength = 0
+	trun = []
+	while words and trunLength + 1 + len(words[0]) < limit - 1:
+		word = words.pop(0)
+		trunLength += 1 + len(word)
+		trun.append(word)
+	return f'{" ".join(trun)}…'
+
+
+def format_change(change: dict) -> typing.Optional[str]:
+	'''Formats a change for posting to IRC. Returns None if it's an event that isn't handled and not to be reported to IRC.'''
+	title = change['title']
+	urlSafeTitle = urllib.parse.quote(change['title'])
+	url = None
+	if change['type'] == 'new':
+		verb = 'created'
+		url = f'{ATW}?title={urlSafeTitle}&oldid={change["revid"]}'
+	elif change['type'] == 'edit':
+		verb = 'edited'
+		url = f'{ATW}?title={urlSafeTitle}&diff={change["revid"]}&oldid={change["old_revid"]}'
+	elif change['type'] == 'log' and change['logtype'] == 'delete':
+		verb = 'deleted'
+		url = ''
+	elif change['type'] == 'log' and change['logtype'] == 'move':
+		verb = 'moved'
+		title = f'{change["logparams"]["target_title"]} (from {change["title"]})'
+		url = f'{ATW}?title={urllib.parse.quote(change["logparams"]["target_title"])}'
+	else:
+		return
+	comment = change["comment"] if change["comment"] else ''
+	url = f'{url}' if url else ''
+	return f'AT Wiki | {title} was {verb} by {change["user"]} at {change["timestamp"]} | {comment} | {url}'
+
+
+def main():
+	# Get initial TS/rcid tuple
+	_, newestRc = get_new(None)
+	time.sleep(60)
+	while True:
+		try:
+			changes, newestRc = get_new(newestRc)
+		except Exception as e:
+			logging.error('get_new failed', exc_info = e)
+			time.sleep(60)
+			continue
+		for change in changes:
+			formatted = format_change(change)
+			if formatted:
+				print(formatted, flush = True)
+			else:
+				logging.warning(f'Suppressed change because it was un- or ill-formatted: {change!r}')
+		time.sleep(60)
+
+
+if __name__ == '__main__':
+	logging.basicConfig(
+		format = '{asctime}.{msecs:03.0f}  {levelname}  {name}  {message}',
+		datefmt = '%Y-%m-%d %H:%M:%S',
+		style = '{',
+		level = logging.INFO,
+	)
+	main()