def parse_header(header):
''' Parse the header of a frame '''
frame_length = sum(struct.unpack('hB', header[:3]))
if frame_length == 1702:
print struct.unpack('hb', header[:3])
header = header[3:]
frame_type = Frame.FRAME_TYPES.get(
struct.unpack('b', header[:1])[0],
'ERROR'
)
header = header[1:]
frame_flags = struct.unpack('b', header[:1])[0]
header = header[1:]
frame_stream = struct.unpack('cccc', header[:4])[::-1]
stream_id = Stream.parse_stream(frame_stream)
header = {
'length' : frame_length,
'type' : frame_type,
'flags' : frame_flags,
'stream' : stream_id
}
return header
