def __init__(self, server, starting_mid, callback, sock=None):
"""
Initialize the client.
:param server: Server address for incoming connections
:param callback:the callback function to be invoked when a response is received
:param starting_mid: used for testing purposes
:param sock: if a socket has been created externally, it can be used directly
"""
self._currentMID = starting_mid
self._server = server
self._callback = callback
self.stopped = threading.Event()
self.to_be_stopped = []
self._messageLayer = MessageLayer(self._currentMID)
self._blockLayer = BlockLayer()
self._observeLayer = ObserveLayer()
self._requestLayer = RequestLayer(self)
addrinfo = socket.getaddrinfo(self._server[0], None)[0]
if sock is not None:
self._socket = sock
elif addrinfo[0] == socket.AF_INET:
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
else:
self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._receiver_thread = threading.Thread(
target=self.receive_datagram,
name=threading.current_thread().name + '-Receive_Datagram')
def __init__(self,
server_address,
multicast=False,
starting_mid=None,
cache=False,
sock=None):
"""
Initialize the Forward Proxy.
:param server_address: Server address for incoming connections
:param multicast: if the ip is a multicast address
:param starting_mid: used for testing purposes
:param cache: if a cache must be used
:param sock: if a socket has been created externally, it can be used directly
"""
self.stopped = threading.Event()
self.stopped.clear()
self.to_be_stopped = []
self.purge = threading.Thread(target=self.purge)
self.purge.start()
self.cache_enable = cache
self._messageLayer = MessageLayer(starting_mid)
self._blockLayer = BlockLayer()
self._observeLayer = ObserveLayer()
if self.cache_enable:
self._cacheLayer = CacheLayer(defines.FORWARD_PROXY)
else:
self._cacheLayer = None
self._forwardLayer = ForwardLayer(self)
self.resourceLayer = ResourceLayer(self)
# Resource directory
root = Resource('root',
self,
visible=False,
observable=False,
allow_children=True)
root.path = '/'
self.root = Tree()
self.root["/"] = root
self._serializer = None
self.server_address = server_address
self.multicast = multicast
addrinfo = socket.getaddrinfo(self.server_address[0], None)[0]
if sock is not None:
# Use given socket, could be a DTLS socket
self._socket = sock
elif self.multicast: # pragma: no cover
# Create a socket
# self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL, 255)
# self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1)
# Join group
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_UDP)
# Allow multiple copies of this program on one machine
# (not strictly needed)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
self._socket.bind(('', self.server_address[1]))
mreq = struct.pack("4sl",
socket.inet_aton(defines.ALL_COAP_NODES),
socket.INADDR_ANY)
self._socket.setsockopt(socket.IPPROTO_IP,
socket.IP_ADD_MEMBERSHIP, mreq)
else:
# Bugfix for Python 3.6 for Windows ... missing IPPROTO_IPV6 constant
if not hasattr(socket, 'IPPROTO_IPV6'):
socket.IPPROTO_IPV6 = 41
self._socket = socket.socket(socket.AF_INET6,
socket.SOCK_DGRAM,
socket.IPPROTO_UDP)
# Allow multiple copies of this program on one machine
# (not strictly needed)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
self._socket.bind(('', self.server_address[1]))
addrinfo_multicast = socket.getaddrinfo(
defines.ALL_COAP_NODES_IPV6, 5683)[0]
group_bin = socket.inet_pton(socket.AF_INET6,
addrinfo_multicast[4][0])
mreq = group_bin + struct.pack('@I', 0)
self._socket.setsockopt(socket.IPPROTO_IPV6,
socket.IPV6_JOIN_GROUP, mreq)
else:
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
else:
self._socket = socket.socket(socket.AF_INET6,
socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
self._socket.bind(self.server_address)
def __init__(self, server_address, multicast=False, starting_mid=None):
"""
Initialize the server.
:param server_address: Server address for incoming connections
:param multicast: if the ip is a multicast address
:param starting_mid: used for testing purposes
"""
self.stopped = threading.Event()
self.stopped.clear()
self.to_be_stopped = []
self.purge = threading.Thread(target=self.purge)
self.purge.start()
self._messageLayer = MessageLayer(starting_mid)
self._blockLayer = BlockLayer()
self._observeLayer = ObserveLayer()
self._requestLayer = RequestLayer(self)
self.resourceLayer = ResourceLayer(self)
# Resource directory
root = Resource('root',
self,
visible=False,
observable=False,
allow_children=False)
root.path = '/'
self.root = Tree()
self.root["/"] = root
self._serializer = None
self.server_address = server_address
self.multicast = multicast
addrinfo = socket.getaddrinfo(self.server_address[0], None)[0]
if self.multicast: # pragma: no cover
# Create a socket
self._socket = socket.socket(addrinfo[1], socket.SOCK_DGRAM)
# Allow multiple copies of this program on one machine
# (not strictly needed)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL,
255)
self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1)
# Bind it to the port
self._socket.bind(('', self.server_address[1]))
# Join group
if addrinfo[0] == socket.AF_INET: # IPv4
addrinfo_multicast = socket.getaddrinfo(
defines.ALL_COAP_NODES, None)[0]
group_bin = socket.inet_pton(addrinfo_multicast[1],
addrinfo_multicast[4][0])
mreq = group_bin + struct.pack('=I', socket.INADDR_ANY)
self._socket.setsockopt(socket.IPPROTO_IP,
socket.IP_ADD_MEMBERSHIP, mreq)
self._unicast_socket = socket.socket(socket.AF_INET,
socket.SOCK_DGRAM)
self._unicast_socket.setsockopt(socket.SOL_SOCKET,
socket.SO_REUSEADDR, 1)
self._unicast_socket.bind(self.server_address)
else:
addrinfo_multicast = socket.getaddrinfo(
defines.ALL_COAP_NODES_IPV6, None)[0]
group_bin = socket.inet_pton(addrinfo_multicast[1],
addrinfo_multicast[4][0])
mreq = group_bin + struct.pack('@I', 0)
self._socket.setsockopt(socket.IPPROTO_IPV6,
socket.IPV6_JOIN_GROUP, mreq)
self._unicast_socket = socket.socket(socket.AF_INET6,
socket.SOCK_DGRAM)
self._unicast_socket.setsockopt(socket.SOL_SOCKET,
socket.SO_REUSEADDR, 1)
self._unicast_socket.bind(self.server_address)
else:
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
else:
self._socket = socket.socket(socket.AF_INET6,
socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
self._socket.bind(self.server_address)
def __init__(self, server_address, multicast=False, starting_mid=None, sock=None, cb_ignore_listen_exception=None):
"""
Initialize the server.
:param server_address: Server address for incoming connections
:param multicast: if the ip is a multicast address
:param starting_mid: used for testing purposes
:param sock: if a socket has been created externally, it can be used directly
:param cb_ignore_listen_exception: Callback function to handle exception raised during the socket listen operation
"""
self.stopped = threading.Event()
self.stopped.clear()
self.to_be_stopped = []
self.purge = threading.Thread(target=self.purge)
self.purge.start()
self._messageLayer = MessageLayer(starting_mid)
self._blockLayer = BlockLayer()
self._observeLayer = ObserveLayer()
self._requestLayer = RequestLayer(self)
self.resourceLayer = ResourceLayer(self)
# Resource directory
root = Resource('root', self, visible=False, observable=False, allow_children=False)
root.path = '/'
self.root = Tree()
self.root["/"] = root
self._serializer = None
self.server_address = server_address
self.multicast = multicast
self._cb_ignore_listen_exception = cb_ignore_listen_exception
addrinfo = socket.getaddrinfo(self.server_address[0], None)[0]
if sock is not None:
# Use given socket, could be a DTLS socket
self._socket = sock
elif self.multicast: # pragma: no cover
# Create a socket
# self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL, 255)
# self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1)
# Join group
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.bind(('', self.server_address[1]))
mreq = struct.pack("4sl", socket.inet_aton(defines.ALL_COAP_NODES), socket.INADDR_ANY)
self._socket.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
else:
self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
# Allow multiple copies of this program on one machine
# (not strictly needed)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.bind((defines.ALL_COAP_NODES_IPV6, self.server_address[1]))
addrinfo_multicast = socket.getaddrinfo(defines.ALL_COAP_NODES_IPV6, 5683)[0]
group_bin = socket.inet_pton(socket.AF_INET6, addrinfo_multicast[4][0])
mreq = group_bin + struct.pack('@I', 0)
self._socket.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
self._unicast_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
self._unicast_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._unicast_socket.bind(self.server_address)
else:
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
else:
self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.bind(self.server_address)
def __init__(self,
server_address,
xml_file,
multicast=False,
starting_mid=None):
self.stopped = threading.Event()
self.stopped.clear()
self.to_be_stopped = []
self.purge = threading.Thread(target=self.purge)
self.purge.start()
self._messageLayer = MessageLayer(starting_mid)
self._blockLayer = BlockLayer()
self._observeLayer = ObserveLayer()
self._forwardLayer = ForwardLayer(self)
self.resourceLayer = ResourceLayer(self)
# Resource directory
root = Resource('root',
self,
visible=False,
observable=False,
allow_children=True)
root.path = '/'
self.root = Tree()
self.root["/"] = root
self._serializer = None
self.server_address = server_address
self.multicast = multicast
self.file_xml = xml_file
self._mapping = {}
addrinfo = socket.getaddrinfo(self.server_address[0], None)[0]
if self.multicast: # pragma: no cover
# Create a socket
self._socket = socket.socket(addrinfo[1], socket.SOCK_DGRAM)
# Allow multiple copies of this program on one machine
# (not strictly needed)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# Bind it to the port
self._socket.bind(('', self.server_address[1]))
group_bin = socket.inet_pton(addrinfo[1], addrinfo[4][0])
# Join group
if addrinfo[0] == socket.AF_INET: # IPv4
mreq = group_bin + struct.pack('=I', socket.INADDR_ANY)
self._socket.setsockopt(socket.IPPROTO_IP,
socket.IP_ADD_MEMBERSHIP, mreq)
else:
mreq = group_bin + struct.pack('@I', 0)
self._socket.setsockopt(socket.IPPROTO_IPV6,
socket.IPV6_JOIN_GROUP, mreq)
else:
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
else:
self._socket = socket.socket(socket.AF_INET6,
socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR,
1)
self._socket.bind(self.server_address)
self.parse_config()
def __init__(self, server_address, multicast=False, starting_mid=None, sock=None, cb_ignore_listen_exception=None):
"""
Initialize the server.
:param server_address: Server address for incoming connections
:param multicast: if the ip is a multicast address
:param starting_mid: used for testing purposes
:param sock: if a socket has been created externally, it can be used directly
:param cb_ignore_listen_exception: Callback function to handle exception raised during the socket listen operation
"""
self.stopped = threading.Event()
self.stopped.clear()
self.to_be_stopped = []
self.purge = threading.Thread(target=self.purge)
self.purge.start()
self._messageLayer = MessageLayer(starting_mid)
self._blockLayer = BlockLayer()
self._observeLayer = ObserveLayer()
self._requestLayer = RequestLayer(self)
self.resourceLayer = ResourceLayer(self)
# Resource directory
root = Resource('root', self, visible=False, observable=False, allow_children=False)
root.path = '/'
self.root = Tree()
self.root["/"] = root
self._serializer = None
self.server_address = server_address
self.multicast = multicast
self._cb_ignore_listen_exception = cb_ignore_listen_exception
self._socketlist = []
addrinfo = socket.getaddrinfo(self.server_address[0], None)[0]
if sock is not None:
# Use given socket, could be a DTLS socket
self._socket = sock
self._socketlist.append(sock)
elif self.multicast: # pragma: no cover
# Join group
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.bind(('', self.server_address[1]))
mreq = struct.pack("4sl", socket.inet_aton(defines.ALL_COAP_NODES), socket.INADDR_ANY)
self._socket.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
else: # IPv6
self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
# Allow multiple copies of this program on one machine
# (not strictly needed)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.bind(self.server_address)
self._socketlist.append(self._socket)
## multicast on OCF nodes : link local
self._socket2 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
# Allows address to be reused
self._socket2.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# Allows port to be reused
try:
self._socket2.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except:
pass
self._socket2.bind(('', 5683))
# Allow messages from this socket to loop back for development
try:
self._socket2.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, True)
except:
self._socket2.setsockopt(41, socket.IPV6_MULTICAST_LOOP, True)
# Construct message for joining multicast group
mreq = struct.pack("16s15s".encode('utf-8'), socket.inet_pton(socket.AF_INET6, defines.ALL_OCF_NODES_S3_IPV6), (chr(0) * 16).encode('utf-8'))
#self._socket2.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
self._socket2.setsockopt(41, socket.IPV6_JOIN_GROUP, mreq)
self._socketlist.append(self._socket2)
## multicast on OCF nodes: site local
self._socket3 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
# Allows address to be reused
self._socket3.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# Allows port to be reused
try:
self._socket3.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except:
pass
self._socket3.bind(('', 5683))
# Allow messages from this socket to loop back for development
try:
self._socket3.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, True)
except:
self._socket3.setsockopt(41, socket.IPV6_MULTICAST_LOOP, True)
# Construct message for joining multicast group
mreq = struct.pack("16s15s".encode('utf-8'), socket.inet_pton(socket.AF_INET6, defines.ALL_OCF_NODES_S5_IPV6), (chr(0) * 16).encode('utf-8'))
try:
self._socket3.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
except:
self._socket3.setsockopt(41, socket.IPV6_JOIN_GROUP, mreq)
self._socketlist.append(self._socket3)
## multicast on ALL COAP nodes
self._socket4 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
# Allows address to be reused
self._socket4.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# Allows port to be reused
try:
self._socket4.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except:
pass
self._socket4.bind(('', 5683))
# Allow messages from this socket to loop back for development
#self._socket4.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, True)
self._socket4.setsockopt(41, socket.IPV6_MULTICAST_LOOP, True)
# Construct message for joining multicast group
mreq = struct.pack("16s15s".encode('utf-8'), socket.inet_pton(socket.AF_INET6, defines.ALL_COAP_NODES_IPV6_LINK), (chr(0) * 16).encode('utf-8'))
#self._socket4.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
self._socket4.setsockopt(41, socket.IPV6_JOIN_GROUP, mreq)
self._socketlist.append(self._socket4)
self._socket5 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
# Allows address to be reused
self._socket5.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# Allows port to be reused
try:
self._socket5.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except:
pass
self._socket5.bind(('', 5683))
# Allow messages from this socket to loop back for development
#self._socket4.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_LOOP, True)
self._socket5.setsockopt(41, socket.IPV6_MULTICAST_LOOP, True)
# Construct message for joining multicast group
mreq = struct.pack("16s15s".encode('utf-8'), socket.inet_pton(socket.AF_INET6, defines.ALL_COAP_NODES_IPV6_SITE), (chr(0) * 16).encode('utf-8'))
#self._socket4.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
self._socket5.setsockopt(41, socket.IPV6_JOIN_GROUP, mreq)
self._socketlist.append(self._socket5)
else:
if addrinfo[0] == socket.AF_INET: # IPv4
self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
else:
self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self._socket.bind(self.server_address)
self._socketlist.append(self._socket)
