def read_data(input, context=None):
amf.utils.logger().debug("read_data()")
if not context:
context=amf.AMFMessageBodyContext()
if not hasattr(input, 'read'):
input = StringIO(input)
type = amf0.read_byte(input)
if type == amf0.AMF3_DATA_TYPE:
type = amf0.read_byte(input)
amf.utils.logger().debug("AMF3 Type='%d'", type)
if type not in read_func_map:
amf.logger.error("Unsupported Type [type='%s']", type)
raise Exception("Unsupported type [type='%s']" % (type,))
func_name = read_func_map[type]
if func_name is not None:
func = eval(func_name)
if callable(func):
return func(input, context)
return None
def read_integer(input, context=None):
amf.utils.logger().debug("amf3.read_integer()")
n = 0
b = amf0.read_byte(input)
result = 0
while (b & 0x80) != 0 and n < 3: # Check the first bit of the byte is 1 or not
result <<= 7
result |= (b & 0x7F)
b = amf0.read_byte(input)
n += 1
if n < 3:
result <<= 7
result |= b
else:
# Use all 8 bits from the 4th byte
result <<= 8
result |= b
# Check if the integer should be negative
if (result & 0x10000000) != 0:
# and extend the sign bit
#result |= 0xe0000000 # This doesn't work
result -= 0x20000000 # TODO
amf.utils.logger().debug("amf3.read_integer() -- result='%s'", repr(result))
return result