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[utils] Validate DateRange input

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Closes #2641
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pukkandan 2022-02-12 02:40:49 +05:30
parent ab6df717d1
commit d49f8db39f
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1 changed files with 9 additions and 5 deletions
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14
yt_dlp/utils.py
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@ -1832,7 +1832,7 @@ def subtitles_filename(filename, sub_lang, sub_format, expected_real_ext=None):
def datetime_from_str(date_str, precision='auto', format='%Y%m%d'): def datetime_from_str(date_str, precision='auto', format='%Y%m%d'):
""" """
Return a datetime object from a string in the format YYYYMMDD or Return a datetime object from a string in the format YYYYMMDD or
(now|today|date)[+-][0-9](microsecond|second|minute|hour|day|week|month|year)(s)? (now|today|yesterday|date)[+-][0-9](microsecond|second|minute|hour|day|week|month|year)(s)?
format: string date format used to return datetime object from format: string date format used to return datetime object from
precision: round the time portion of a datetime object. precision: round the time portion of a datetime object.
@ -1871,13 +1871,17 @@ def datetime_from_str(date_str, precision='auto', format='%Y%m%d'):
return datetime_round(datetime.datetime.strptime(date_str, format), precision) return datetime_round(datetime.datetime.strptime(date_str, format), precision)
def date_from_str(date_str, format='%Y%m%d'): def date_from_str(date_str, format='%Y%m%d', strict=False):
""" """
Return a datetime object from a string in the format YYYYMMDD or Return a datetime object from a string in the format YYYYMMDD or
(now|today|date)[+-][0-9](microsecond|second|minute|hour|day|week|month|year)(s)? (now|today|yesterday|date)[+-][0-9](microsecond|second|minute|hour|day|week|month|year)(s)?
If "strict", only (now|today)[+-][0-9](day|week|month|year)(s)? is allowed
format: string date format used to return datetime object from format: string date format used to return datetime object from
""" """
if strict and not re.fullmatch(r'\d{8}|(now|today)[+-]\d+(day|week|month|year)(s)?', date_str):
raise ValueError(f'Invalid date format {date_str}')
return datetime_from_str(date_str, precision='microsecond', format=format).date() return datetime_from_str(date_str, precision='microsecond', format=format).date()
@ -1924,11 +1928,11 @@ class DateRange(object):
def __init__(self, start=None, end=None): def __init__(self, start=None, end=None):
"""start and end must be strings in the format accepted by date""" """start and end must be strings in the format accepted by date"""
if start is not None: if start is not None:
self.start = date_from_str(start) self.start = date_from_str(start, strict=True)
else: else:
self.start = datetime.datetime.min.date() self.start = datetime.datetime.min.date()
if end is not None: if end is not None:
self.end = date_from_str(end) self.end = date_from_str(end, strict=True)
else: else:
self.end = datetime.datetime.max.date() self.end = datetime.datetime.max.date()
if self.start > self.end: if self.start > self.end: