def range(self):
value = self._get_header_by_wsgi_name('HTTP_RANGE')
if value:
if ',' in value:
msg = 'The value must be a continuous byte range.'
raise InvalidHeader(msg, value, 'range')
try:
first, last = value.split('-')
if first:
return (int(first), int(last or -1))
elif last:
return (-int(last), -1)
else:
msg = 'The value is missing offsets.'
raise InvalidHeader(msg, value, 'range')
except ValueError:
href = 'http://goo.gl/zZ6Ey'
href_text = 'HTTP/1.1 Range Requests'
msg = ('The string given could not be parsed. It must be '
'formatted according to RFC 2616.')
raise InvalidHeader(msg,
value,
'range',
href=href,
href_text=href_text)
return None
def date(self):
http_date = self._get_header_by_wsgi_name('HTTP_DATE')
try:
return util.http_date_to_dt(http_date)
except ValueError:
msg = ('The value could not be parsed. It must be formatted '
'according to RFC 1123.')
raise InvalidHeader(msg, http_date, 'date')
def content_length(self):
value = self._get_header_by_wsgi_name('HTTP_CONTENT_LENGTH')
if value:
try:
value_as_int = int(value)
except ValueError:
msg = 'The value of the header must be a number.'
raise InvalidHeader(msg, value, 'content-length')
if value_as_int < 0:
msg = 'The value of the header must be a positive number.'
raise InvalidHeader(msg, value, 'content-length')
else:
return value_as_int
return None