From d66794c3054567725452f5780b2a076351ab3174 Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Mon, 11 Nov 2024 15:00:19 -0500
Subject: [PATCH] Store-bought is fine :)

---
 lib/nntp/tiny/message.py | 52 ++--------------------------------------
 1 file changed, 2 insertions(+), 50 deletions(-)

diff --git a/lib/nntp/tiny/message.py b/lib/nntp/tiny/message.py
index 5eea5b4..aff9f59 100644
--- a/lib/nntp/tiny/message.py
+++ b/lib/nntp/tiny/message.py
@@ -2,6 +2,7 @@ import re
 import enum
 import datetime
 
+from email.utils  import parsedate_to_datetime
 from email.header import decode_header
 
 from nntp.tiny.db import DatabaseTable
@@ -41,60 +42,11 @@ def each_line(text: str):
             yield text[start:end]
             break
 
-DATE_MONTHS = {
-    'jan':  1, 'january':    1,
-    'feb':  2, 'february':   2,
-    'mar':  3, 'march':      3,
-    'apr':  4, 'april':      4,
-    'may':  5,
-    'jun':  6, 'june':       6,
-    'jul':  7, 'july':       7,
-    'aug':  8, 'august':     8,
-    'sep':  9, 'september':  9,
-    'oct': 10, 'october':   10,
-    'nov': 11, 'november':  11,
-    'dec': 12, 'december':  12
-}
-
-DATE_RE = [
-    re.compile(r'^(?:[A-Za-z]+),\s+(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}):(?P<ss>\d{2}) (?P<offset_sign>[+\-])(?P<offset_hour>\d{2})(?P<offset_minute>\d{2})$'),
-    re.compile(r'^(?:[A-Za-z]+),\s+(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}):(?P<ss>\d{2}) (?P<offset_sign>[+\-])(?P<offset_hour>\d{2})(?P<offset_minute>\d{2}) \((?:[A-Za-z ]+)\)$'),
-    re.compile(r'^(?:[A-Za-z]+),\s+(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}):(?P<ss>\d{2}) (?:GMT|UTC)$'),
-    re.compile(r'^(?:[A-Za-z]+),\s+(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}) (?P<offset_sign>[+\-])(?P<offset_hour>\d{2})(?P<offset_minute>\d{2})$'),
-    re.compile(r'^(?:[A-Za-z]+),\s+(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}) (?P<offset_sign>[+\-])(?P<offset_hour>\d{2})(?P<offset_minute>\d{2}) \((?:[A-Z ]+)\)$'),
-    re.compile(r'^(?:[A-Za-z]+),\s+(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}) (?:GMT|UTC)$'),
-    re.compile(r'^(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}):(?P<ss>\d{2}) (?P<offset_sign>[+\-])(?P<offset_hour>\d{2})(?P<offset_minute>\d{2})$'),
-    re.compile(r'^(?P<dd>\d{1,2}) (?P<month>[A-Za-z]+) (?P<yyyy>\d{4}) (?P<hh>\d{2}):(?P<MM>\d{2}):(?P<ss>\d{2}) (?:GMT|UTC)$'),
-]
-
 def parse_timestamp(timestamp: str):
     if timestamp is None or timestamp == '':
         return datetime.datetime.fromtimestamp(0)
 
-    for re in DATE_RE:
-        match = re.match(timestamp)
-
-        if match is not None:
-            capture = match.groupdict()
-            mult    = -1 if capture.get('offset_sign', '+') == '-' else 1
-            tz      = datetime.timezone(datetime.timedelta(
-                hours   = mult * int(capture.get('offset_hour', 0)),
-                minutes = mult * int(capture.get('offset_minute', 0))
-            ))
-
-            yyyy = int(capture['yyyy'])
-
-            if 'month' in capture:
-                mm = DATE_MONTHS[capture['month'].lower()]
-            else:
-                mm = int(capture['mm'])
-
-            dd = int(capture['dd'])
-            hh = int(capture.get('hh', 0))
-            MM = int(capture.get('MM', 0))
-            ss = int(capture.get('ss', 0))
-
-            return datetime.datetime(yyyy, mm, dd, hh, MM, ss, 0, tz)
+    return parsedate_to_datetime(timestamp)
 
 class MessageState(enum.Enum):
     EMPTY  = 0