def __init__(self, request, stats):
self.total = stats.st_size
_range = request.headers.get("Range")
if _range is None:
raise HeaderNotFound("Range Header Not Found")
unit, _, value = tuple(map(str.strip, _range.partition("=")))
if unit != "bytes":
raise InvalidRangeType(
"%s is not a valid Range Type" % (unit,), self
)
start_b, _, end_b = tuple(map(str.strip, value.partition("-")))
try:
self.start = int(start_b) if start_b else None
except ValueError:
raise ContentRangeError(
"'%s' is invalid for Content Range" % (start_b,), self
)
try:
self.end = int(end_b) if end_b else None
except ValueError:
raise ContentRangeError(
"'%s' is invalid for Content Range" % (end_b,), self
)
if self.end is None:
if self.start is None:
raise ContentRangeError(
"Invalid for Content Range parameters", self
)
else:
# this case represents `Content-Range: bytes 5-`
self.end = self.total - 1
else:
if self.start is None:
# this case represents `Content-Range: bytes -5`
self.start = self.total - self.end
self.end = self.total - 1
if self.start >= self.end:
raise ContentRangeError(
"Invalid for Content Range parameters", self
)
self.size = self.end - self.start + 1
self.headers = {
"Content-Range": "bytes %s-%s/%s"
% (self.start, self.end, self.total)
}
def __init__(self, request, stats):
self.total = stats.st_size
_range = request.headers.get('Range')
if _range is None:
raise HeaderNotFound('Range Header Not Found')
unit, _, value = tuple(map(str.strip, _range.partition('=')))
if unit != 'bytes':
raise InvalidRangeType('%s is not a valid Range Type' % (unit, ),
self)
start_b, _, end_b = tuple(map(str.strip, value.partition('-')))
try:
self.start = int(start_b) if start_b else None
except ValueError:
raise ContentRangeError(
'\'%s\' is invalid for Content Range' % (start_b, ), self)
try:
self.end = int(end_b) if end_b else None
except ValueError:
raise ContentRangeError(
'\'%s\' is invalid for Content Range' % (end_b, ), self)
if self.end is None:
if self.start is None:
raise ContentRangeError('Invalid for Content Range parameters',
self)
else:
# this case represents `Content-Range: bytes 5-`
self.end = self.total
else:
if self.start is None:
# this case represents `Content-Range: bytes -5`
self.start = self.total - self.end
self.end = self.total
if self.start >= self.end:
raise ContentRangeError('Invalid for Content Range parameters',
self)
self.size = self.end - self.start
self.headers = {
'Content-Range':
"bytes %s-%s/%s" % (self.start, self.end, self.total)
}