0ca02aad1f
* refactor: accept tz name strings in ietf.utils.timezone methods * refactor: use explicitly tz-aware math for iana-changes-updates script * chore: remove unused "local_timezone_to_utc()" method helper
86 lines
3 KiB
Python
Executable file
86 lines
3 KiB
Python
Executable file
#!/usr/bin/env python
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# This script requires that the proper virtual python environment has been
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# invoked before start
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import datetime
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import os
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import sys
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import syslog
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# boilerplate
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basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../.."))
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sys.path = [ basedir ] + sys.path
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os.environ["DJANGO_SETTINGS_MODULE"] = "ietf.settings"
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import django
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django.setup()
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from django.conf import settings
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from optparse import OptionParser
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from zoneinfo import ZoneInfo
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parser = OptionParser()
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parser.add_option("-f", "--from", dest="start",
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help="Start time, defaults to a little less than 23 hours ago", metavar="YYYY-MM-DD HH:MM:SS")
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parser.add_option("-t", "--to", dest="end",
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help="End time, defaults to 23 hours later than from", metavar="YYYY-MM-DD HH:MM:SS")
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parser.add_option("", "--no-email", dest="send_email", default=True, action="store_false",
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help="Skip sending emails")
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options, args = parser.parse_args()
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# compensate to avoid we ask for something that happened now and then
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# don't get it back because our request interval is slightly off
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CLOCK_SKEW_COMPENSATION = 5 # seconds
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# actually the interface accepts 24 hours, but then we get into
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# trouble with daylights savings - meh
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MAX_INTERVAL_ACCEPTED_BY_IANA = datetime.timedelta(hours=23)
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local_tzinfo = ZoneInfo(settings.TIME_ZONE)
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start = datetime.datetime.now() - datetime.timedelta(hours=23) + datetime.timedelta(seconds=CLOCK_SKEW_COMPENSATION)
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if options.start:
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start = datetime.datetime.strptime(options.start, "%Y-%m-%d %H:%M:%S")
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start = start.replace(tzinfo=local_tzinfo).astimezone(datetime.timezone.utc)
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end = start + datetime.timedelta(hours=23)
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if options.end:
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end = datetime.datetime.strptime(options.end, "%Y-%m-%d %H:%M:%S").replace(tzinfo=local_tzinfo)
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end = end.astimezone(datetime.timezone.utc)
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syslog.openlog(os.path.basename(__file__), syslog.LOG_PID, syslog.LOG_USER)
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# ----------------------------------------------------------------------
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from ietf.sync.iana import fetch_changes_json, parse_changes_json, update_history_with_changes
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syslog.syslog(
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"Updating history log with new changes from IANA from %s, period %s - %s" % (
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settings.IANA_SYNC_CHANGES_URL,
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start.astimezone(local_tzinfo),
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end.astimezone(local_tzinfo),
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)
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)
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t = start
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while t < end:
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# the IANA server doesn't allow us to fetch more than a certain
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# period, so loop over the requested period and make multiple
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# requests if necessary
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text = fetch_changes_json(settings.IANA_SYNC_CHANGES_URL, t, min(end, t + MAX_INTERVAL_ACCEPTED_BY_IANA))
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syslog.syslog("Retrieved the JSON: %s" % text)
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changes = parse_changes_json(text)
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added_events, warnings = update_history_with_changes(changes, send_email=options.send_email)
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for e in added_events:
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syslog.syslog("Added event for %s %s: %s (parsed json: %s)" % (e.doc_id, e.time, e.desc, e.json))
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for w in warnings:
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syslog.syslog("WARNING: %s" % w)
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t += MAX_INTERVAL_ACCEPTED_BY_IANA
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