def encode_short_string(pieces, value):
"""Encode a string value as short string and append it to pieces list
returning the size of the encoded value.
:param list pieces: Already encoded values
:param value: String value to encode
:type value: str or unicode
:rtype: int
"""
encoded_value = as_bytes(value)
length = len(encoded_value)
# 4.2.5.3
# Short strings, stored as an 8-bit unsigned integer length followed by zero
# or more octets of data. Short strings can carry up to 255 octets of UTF-8
# data, but may not contain binary zero octets.
# ...
# 4.2.5.5
# The server SHOULD validate field names and upon receiving an invalid field
# name, it SHOULD signal a connection exception with reply code 503 (syntax
# error).
# -> validate length (avoid truncated utf-8 / corrupted data), but skip null
# byte check.
if length > 255:
raise exceptions.ShortStringTooLong(encoded_value)
pieces.append(struct.pack('B', length))
pieces.append(encoded_value)
return 1 + length
def encode_short_string(pieces, value):
"""Encode a string value as short string and append it to pieces list
returning the size of the encoded value.
:param list pieces: Already encoded values
:param value: String value to encode
:type value: str or unicode
:rtype: int
"""
encoded_value = as_bytes(value)
length = len(encoded_value)
# 4.2.5.3
# Short strings, stored as an 8-bit unsigned integer length followed by zero
# or more octets of data. Short strings can carry up to 255 octets of UTF-8
# data, but may not contain binary zero octets.
# ...
# 4.2.5.5
# The server SHOULD validate field names and upon receiving an invalid field
# name, it SHOULD signal a connection exception with reply code 503 (syntax
# error).
# -> validate length (avoid truncated utf-8 / corrupted data), but skip null
# byte check.
if length > 255:
raise exceptions.ShortStringTooLong(encoded_value)
pieces.append(struct.pack('B', length))
pieces.append(encoded_value)
return 1 + length
def begin(self, channel):
self.name = self.__class__.__name__ + ':' + str(id(self))
channel.exchange_declare(self.on_exchange_declared,
as_bytes(self.name),
exchange_type=self.X_TYPE,
passive=False,
durable=False,
auto_delete=True)
def begin(self, channel):
self.name = self.__class__.__name__ + ':' + str(id(self))
self.channel.add_on_close_callback(self.on_channel_closed)
channel.exchange_declare(self.on_exchange_declared,
as_bytes(self.name),
exchange_type=self.X_TYPE1,
passive=False,
durable=False,
auto_delete=True)
def on_get(self, channel, method, header, body):
self.assertIsInstance(method, spec.Basic.GetOk)
self.assertEqual(body, as_bytes(self.msg_body))
self.channel.basic_ack(method.delivery_tag)
self.stop()
def on_message(self, channel, method, header, body):
self.assertIsInstance(method, spec.Basic.Deliver)
self.assertEqual(body, as_bytes(self.msg_body))
self.channel.basic_ack(method.delivery_tag)
self.channel.basic_cancel(self.ctag, callback=self.on_cancelled)
def on_get(self, channel, method, header, body):
self.assertIsInstance(method, spec.Basic.GetOk)
self.assertEqual(body, as_bytes(self.msg_body))
self.channel.basic_ack(method.delivery_tag)
self.stop()
def on_message(self, channel, method, header, body):
self.assertIsInstance(method, spec.Basic.Deliver)
self.assertEqual(body, as_bytes(self.msg_body))
self.channel.basic_ack(method.delivery_tag)
self.channel.basic_cancel(self.on_cancelled, self.ctag)
