Python Outgoing.writer方法代码示例

# 需要导入模块: from exabgp.reactor.network.outgoing import Outgoing [as 别名]
# 或者: from exabgp.reactor.network.outgoing.Outgoing import writer [as 别名]
def test ():
	OPEN = ''.join([chr(int(_,16)) for _ in "FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 1D 01 04 78 14 00 5A 52 DB 00 45 00".split()])
	KEEP = ''.join([chr(int(_,16)) for _ in "FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF 00 00 04".split()])

	from exabgp.reactor.network.outgoing import Outgoing
	connection = Outgoing(1,'82.219.0.69','82.219.212.34')
	writer = connection.writer(OPEN)
	while six.next(writer) is False:
		pass
	writer = connection.writer(KEEP)
	while six.next(writer) is False:
		pass

	reader = connection.reader()

	for size,msg,header,body,notification in reader:
		if size:
			print(od(header+body))
		else:
			sys.stdout.write('-')

	reader = connection.reader()

	for size,msg,header,body,notification in reader:
		if size:
			print(od(header+body))
		else:
			sys.stdout.write('+')

	connection.close()

# 需要导入模块: from exabgp.reactor.network.outgoing import Outgoing [as 别名]
# 或者: from exabgp.reactor.network.outgoing.Outgoing import writer [as 别名]
class Protocol (object):
	decode = True

	def __init__ (self,peer):
		try:
			self.logger = Logger()
		except RuntimeError:
			self.logger = FakeLogger()
		self.peer = peer
		self.neighbor = peer.neighbor
		self.negotiated = Negotiated(self.neighbor)
		self.connection = None
		port = os.environ.get('exabgp.tcp.port','') or os.environ.get('exabgp_tcp_port','')
		self.port = int(port) if port.isdigit() else 179

		# XXX: FIXME: check the the -19 is correct (but it is harmless)
		# The message size is the whole BGP message _without_ headers
		self.message_size = Message.MAX_LEN-Message.HEADER_LEN

		from exabgp.configuration.environment import environment
		self.log_routes = environment.settings().log.routes

	# XXX: we use self.peer.neighbor.peer_address when we could use self.neighbor.peer_address

	def __del__ (self):
		self.close('automatic protocol cleanup')

	def me (self,message):
		return "Peer %15s ASN %-7s %s" % (self.peer.neighbor.peer_address,self.peer.neighbor.peer_as,message)

	def accept (self,incoming):
		self.connection = incoming

		if self.peer.neighbor.api['neighbor-changes']:
			self.peer.reactor.processes.connected(self.peer)

		# very important - as we use this function on __init__
		return self

	def connect (self):
		# allows to test the protocol code using modified StringIO with a extra 'pending' function
		if not self.connection:
			peer = self.neighbor.peer_address
			local = self.neighbor.local_address
			md5 = self.neighbor.md5
			ttl = self.neighbor.ttl
			self.connection = Outgoing(peer.afi,peer.ip,local.ip,self.port,md5,ttl)

			try:
				generator = self.connection.establish()
				while True:
					connected = generator.next()
					if not connected:
						yield False
						continue
					if self.peer.neighbor.api['neighbor-changes']:
						self.peer.reactor.processes.connected(self.peer)
					yield True
					return
			except StopIteration:
				# close called by the caller
				# self.close('could not connect to remote end')
				yield False
				return

	def close (self,reason='protocol closed, reason unspecified'):
		if self.connection:
			self.logger.network(self.me(reason))

			# must be first otherwise we could have a loop caused by the raise in the below
			self.connection.close()
			self.connection = None

			try:
				if self.peer.neighbor.api['neighbor-changes']:
					self.peer.reactor.processes.down(self.peer,reason)
			except ProcessError:
				self.logger.message(self.me('could not send notification of neighbor close to API'))


	def write (self,message):
		if self.neighbor.api['send-packets'] and not self.neighbor.api['consolidate']:
			self.peer.reactor.processes.send(self.peer,ord(message[18]),message[:19],message[19:])
		for boolean in self.connection.writer(message):
			yield boolean

	# Read from network .......................................................

	def read_message (self):
		for length,msg,header,body,notify in self.connection.reader():
			if notify:
				if self.neighbor.api['receive-packets']:
					self.peer.reactor.processes.receive(self.peer,msg,header,body)
				if self.neighbor.api[Message.ID.NOTIFICATION]:
					self.peer.reactor.processes.notification(self.peer,notify.code,notify.subcode,str(notify))
				# XXX: is notify not already Notify class ?
				raise Notify(notify.code,notify.subcode,str(notify))
			if not length:
				yield _NOP

#.........这里部分代码省略.........

# 需要导入模块: from exabgp.reactor.network.outgoing import Outgoing [as 别名]
# 或者: from exabgp.reactor.network.outgoing.Outgoing import writer [as 别名]

#.........这里部分代码省略.........

			# must be first otherwise we could have a loop caused by the raise in the below
			self.connection.close()
			self.connection = None

			try:
				if self.peer.neighbor.api['neighbor-changes']:
					self.peer.reactor.processes.down(self.peer.neighbor,reason)
			except ProcessError:
				self.logger.message(self.me('could not send notification of neighbor close to API'))

	def _to_api (self,direction,message,raw):
		packets = self.neighbor.api['%s-packets' % direction]
		parsed = self.neighbor.api['%s-parsed' % direction]
		consolidate = self.neighbor.api['%s-consolidate' % direction]

		if consolidate:
			if packets:
				self.peer.reactor.processes.message(self.peer.neighbor,direction,message,raw[:19],raw[19:])
			else:
				self.peer.reactor.processes.message(self.peer.neighbor,direction,message,'','')
		else:
			if packets:
				self.peer.reactor.processes.packets(self.peer.neighbor,direction,int(message.ID),raw[:19],raw[19:])
			if parsed:
				self.peer.reactor.processes.message(message.ID,self.peer.neighbor,direction,message,'','')

	def write (self, message, negotiated=None):
		raw = message.message(negotiated)

		if self.neighbor.api.get('send-%s' % Message.CODE.short(message.ID),False):
			self._to_api('send',message,raw)

		for boolean in self.connection.writer(raw):
			yield boolean

	def send (self,raw):
		if self.neighbor.api.get('send-%s' % Message.CODE.short(ord(raw[19])),False):
			message = Update.unpack_message(raw[19:],self.negotiated)
			self._to_api('send',message,raw)

		for boolean in self.connection.writer(raw):
			yield boolean

	# Read from network .......................................................

	def read_message (self):
		# This will always be defined by the loop but scope leaking upset scrutinizer/pylint
		msg_id = None

		packets = self.neighbor.api['receive-packets']
		consolidate = self.neighbor.api['receive-consolidate']
		parsed = self.neighbor.api['receive-parsed']

		body,header = '',''  # just because pylint/pylama are getting more clever

		for length,msg_id,header,body,notify in self.connection.reader():
			# internal issue
			if notify:
				if self.neighbor.api.get('send-%s' % Message.CODE.NOTIFICATION.SHORT,False):
					if consolidate:
						self.peer.reactor.processes.notification(self.peer.neighbor,'send',notify.code,notify.subcode,str(notify),header,body)
					elif parsed:
						self.peer.reactor.processes.notification(self.peer.neighbor,'send',notify.code,notify.subcode,str(notify),'','')
					elif packets:
						self.peer.reactor.processes.packets(self.peer.neighbor,'send',msg_id,header,body)

# 需要导入模块: from exabgp.reactor.network.outgoing import Outgoing [as 别名]
# 或者: from exabgp.reactor.network.outgoing.Outgoing import writer [as 别名]
class Protocol (object):
	decode = True

	def __init__ (self,peer):
		try:
			self.logger = Logger()
		except RuntimeError:
			self.logger = FakeLogger()
		self.peer = peer
		self.neighbor = peer.neighbor
		self.negotiated = Negotiated(self.neighbor)
		self.connection = None
		port = os.environ.get('exabgp.tcp.port','') or os.environ.get('exabgp_tcp_port','')
		self.port = int(port) if port.isdigit() else 179

		# XXX: FIXME: check the the -19 is correct (but it is harmless)
		# The message size is the whole BGP message _without_ headers
		self.message_size = Message.MAX_LEN-Message.HEADER_LEN

		from exabgp.configuration.environment import environment
		self.log_routes = environment.settings().log.routes

	# XXX: we use self.peer.neighbor.peer_address when we could use self.neighbor.peer_address

	def __del__ (self):
		self.close('automatic protocol cleanup')

	def me (self,message):
		return "Peer %15s ASN %-7s %s" % (self.peer.neighbor.peer_address,self.peer.neighbor.peer_as,message)

	def accept (self,incoming):
		self.connection = incoming

		self.peer.reactor.processes.reset(self.peer)
		if self.peer.neighbor.api.neighbor_changes:
			self.peer.reactor.processes.connected(self.peer)

		# very important - as we use this function on __init__
		return self

	def connect (self):
		# allows to test the protocol code using modified StringIO with a extra 'pending' function
		if not self.connection:
			peer = self.neighbor.peer_address
			local = self.neighbor.local_address
			md5 = self.neighbor.md5
			ttl = self.neighbor.ttl
			self.connection = Outgoing(peer.afi,peer.ip,local.ip,self.port,md5,ttl)

			connected = False
			try:
				generator = self.connection.establish()
				while True:
					connected = generator.next()
					if not connected:
						yield False
						continue
					self.peer.reactor.processes.reset(self.peer)
					if self.peer.neighbor.api.neighbor_changes:
						self.peer.reactor.processes.connected(self.peer)
					yield True
					return
			except StopIteration:
				# close called by the caller
				# self.close('could not connect to remote end')
				yield False
				return

	def close (self,reason='protocol closed, reason unspecified'):
		if self.connection:
			self.logger.network(self.me(reason))

			# must be first otherwise we could have a loop caused by the raise in the below
			self.connection.close()
			self.connection = None

			try:
				if self.peer.neighbor.api.neighbor_changes:
					self.peer.reactor.processes.down(self.peer,reason)
			except ProcessError:
				self.logger.message(self.me('could not send notification of neighbor close to API'))


	def write (self,message):
		if self.neighbor.api.send_packets:
			self.peer.reactor.processes.send(self.peer,ord(message[18]),message[:19],message[19:])
		for boolean in self.connection.writer(message):
			yield boolean

	# Read from network .......................................................

	def read_message (self,comment=''):
		self.peer.reactor.processes.increase(self.peer)

		for length,msg,header,body,notify in self.connection.reader():
			if notify:
				if self.neighbor.api.receive_packets:
					self.peer.reactor.processes.receive(self.peer,msg,header,body)
				if self.neighbor.api.receive_notifications:
					self.peer.reactor.processes.notification(self.peer,notify.code,notify.subcode,str(notify))
#.........这里部分代码省略.........

# 需要导入模块: from exabgp.reactor.network.outgoing import Outgoing [as 别名]
# 或者: from exabgp.reactor.network.outgoing.Outgoing import writer [as 别名]
class Protocol (object):
	decode = True

	def __init__ (self,peer):
		try:
			self.logger = Logger()
		except RuntimeError:
			self.logger = FakeLogger()
		self.peer = peer
		self.neighbor = peer.neighbor
		self.negotiated = Negotiated(self.neighbor)
		self.connection = None
		port = os.environ.get('exabgp.tcp.port','')
		self.port = int(port) if port.isdigit() else 179

		# XXX: FIXME: check the the -19 is correct (but it is harmless)
		# The message size is the whole BGP message _without_ headers
		self.message_size = Message.MAX_LEN-Message.HEADER_LEN

	# XXX: we use self.peer.neighbor.peer_address when we could use self.neighbor.peer_address

	def __del__ (self):
		self.close('automatic protocol cleanup')

	def me (self,message):
		return "Peer %15s ASN %-7s %s" % (self.peer.neighbor.peer_address,self.peer.neighbor.peer_as,message)

	def accept (self,incoming):
		self.connection = incoming

		if self.peer.neighbor.api.neighbor_changes:
			self.peer.reactor.processes.connected(self.peer.neighbor.peer_address)

		# very important - as we use this function on __init__
		return self

	def connect (self):
		# allows to test the protocol code using modified StringIO with a extra 'pending' function
		if not self.connection:
			peer = self.neighbor.peer_address
			local = self.neighbor.local_address
			md5 = self.neighbor.md5
			ttl = self.neighbor.ttl
			self.connection = Outgoing(peer.afi,peer.ip,local.ip,self.port,md5,ttl)

			connected = False
			try:
				generator = self.connection.establish()
				while True:
					connected = generator.next()
					if not connected:
						yield False
						continue
					if self.peer.neighbor.api.neighbor_changes:
						self.peer.reactor.processes.connected(self.peer.neighbor.peer_address)
					yield True
					return
			except StopIteration:
				# close called by the caller
				# self.close('could not connect to remote end')
				yield False
				return

	def close (self,reason='protocol closed, reason unspecified'):
		if self.connection:
			self.logger.network(self.me(reason))

			# must be first otherwise we could have a loop caused by the raise in the below
			self.connection.close()
			self.connection = None

			try:
				if self.peer.neighbor.api.neighbor_changes:
					self.peer.reactor.processes.down(self.peer.neighbor.peer_address,reason)
			except ProcessError:
				self.logger.message(self.me('could not send notification of neighbor close to API'))


	def write (self,message):
		if self.neighbor.api.send_packets:
			self.peer.reactor.processes.send(self.peer.neighbor.peer_address,ord(message[18]),message[:19],message[19:])
		for boolean in self.connection.writer(message):
			yield boolean

	# Read from network .......................................................

	def read_message (self,comment=''):
		try:
			for length,msg,header,body in self.connection.reader():
				if not length:
					yield _NOP
		except NotifyError,n:
			raise Notify(n.code,n.subcode,str(n))

		if self.neighbor.api.receive_packets:
			self.peer.reactor.processes.receive(self.peer.neighbor.peer_address,msg,header,body)

		if msg == Message.Type.UPDATE:
			self.logger.message(self.me('<< UPDATE'))

#.........这里部分代码省略.........

# 需要导入模块: from exabgp.reactor.network.outgoing import Outgoing [as 别名]
# 或者: from exabgp.reactor.network.outgoing.Outgoing import writer [as 别名]

#.........这里部分代码省略.........

			self.peer.stats['down'] = self.peer.stats.get('down',0) + 1
			try:
				if self.peer.neighbor.api['neighbor-changes']:
					self.peer.reactor.processes.down(self.peer.neighbor,reason)
			except ProcessError:
				self.logger.debug('could not send notification of neighbor close to API',self.connection.session())

	def _to_api (self,direction,message,raw):
		packets = self.neighbor.api['%s-packets' % direction]
		parsed = self.neighbor.api['%s-parsed' % direction]
		consolidate = self.neighbor.api['%s-consolidate' % direction]
		negotiated = self.negotiated if self.neighbor.api['negotiated'] else None

		if consolidate:
			if packets:
				self.peer.reactor.processes.message(self.peer.neighbor,direction,message,negotiated,raw[:19],raw[19:])
			else:
				self.peer.reactor.processes.message(self.peer.neighbor,direction,message,negotiated,b'',b'')
		else:
			if packets:
				self.peer.reactor.processes.packets(self.peer.neighbor,direction,int(message.ID),negotiated,raw[:19],raw[19:])
			if parsed:
				self.peer.reactor.processes.message(message.ID,self.peer.neighbor,direction,message,negotiated,b'',b'')

	def write (self, message, negotiated=None):
		raw = message.message(negotiated)

		code = 'send-%s' % Message.CODE.short(message.ID)
		self.peer.stats[code] = self.peer.stats.get(code,0) + 1
		if self.neighbor.api.get(code,False):
			self._to_api('send',message,raw)

		for boolean in self.connection.writer(raw):
			yield boolean

	def send (self, raw):
		code = 'send-%s' % Message.CODE.short(ordinal(raw[18]))
		self.peer.stats[code] = self.peer.stats.get(code,0) + 1
		if self.neighbor.api.get(code,False):
			message = Update.unpack_message(raw[19:],self.negotiated)
			self._to_api('send',message,raw)

		for boolean in self.connection.writer(raw):
			yield boolean

	# Read from network .......................................................

	def read_message (self):
		# This will always be defined by the loop but scope leaking upset scrutinizer/pylint
		msg_id = None

		packets = self.neighbor.api['receive-packets']
		consolidate = self.neighbor.api['receive-consolidate']
		parsed = self.neighbor.api['receive-parsed']

		body,header = b'',b''  # just because pylint/pylama are getting more clever

		for length,msg_id,header,body,notify in self.connection.reader():
			# internal issue
			if notify:
				code = 'receive-%s' % Message.CODE.NOTIFICATION.SHORT
				if self.neighbor.api.get(code,False):
					if consolidate:
						self.peer.reactor.processes.notification(self.peer.neighbor,'receive',notify.code,notify.subcode,str(notify),None,header,body)
					elif parsed: