Example #1
0
    def __init__(self, server, forward):
        # print "INIT CLIENT\n"
        self._forward = forward
        self.received = {}
        self.sent = {}
        self.sent_token = {}
        self.received_token = {}
        self.call_id = {}
        self.relation = {}
        self._currentMID = 1
        import socket
        try:
            socket.inet_aton(server[0])
            self.server = server
            # legal
        except socket.error:
            # Not legal
            data = socket.getaddrinfo(server[0], server[1])

            self.server = (server[0], server[1])

        # defer = reactor.resolve('coap.me')
        # defer.addCallback(self.start)
        # self.server = (None, 5683)

        root = Resource('root', visible=False, observable=False, allow_children=True)
        root.path = '/'
        self.root = Tree()
        self.root["/"] = root
        self.operations = []
        self.l = None
    def parse_core_link_format(link_format, root):
        while len(link_format) > 0:
            pattern = "<([^>]*)>;"
            result = re.match(pattern, link_format)
            path = result.group(1)
            path = path.split("/")
            path = path[1:]
            link_format = link_format[result.end(1) + 2:]
            pattern = "([^<,])*"
            result = re.match(pattern, link_format)
            attributes = result.group(0)
            dict_att = {}
            if len(attributes) > 0:
                attributes = attributes.split(";")
                for att in attributes:
                    a = att.split("=")
                    # TODO check correctness
                    dict_att[a[0]] = a[1]
                link_format = link_format[result.end(0) + 1:]

            while True:
                last, p = root.find_complete_last(path)
                if p is not None:
                    resource = Resource("/".join(path))
                    resource.path = p
                    if p == "".join(path):
                        resource.attributes = dict_att
                    last.add_child(resource)
                else:
                    break
        log.msg(root.dump())
        return root
Example #3
0
    def __init__(self, multicast=False):
        """
        Initialize the CoAP protocol

        """
        self.received = {}
        self.sent = {}
        self.call_id = {}
        self.relation = {}
        self.blockwise = {}
        self._currentMID = random.randint(1, 1000)

        # Create the resource Tree
        root = Resource('root', self, visible=False, observable=False, allow_children=True)
        root.path = '/'
        self.root = Tree(root)

        # Initialize layers
        self._request_layer = RequestLayer(self)
        self._blockwise_layer = BlockwiseLayer(self)
        self._resource_layer = ResourceLayer(self)
        self._message_layer = MessageLayer(self)
        self._observe_layer = ObserveLayer(self)

        # Start a task for purge MIDs
        self.l = task.LoopingCall(self.purge_mids)
        self.l.start(defines.EXCHANGE_LIFETIME)

        self.multicast = multicast
 def __init__(self, file_xml):
     ProxyCoAP.__init__(self)
     self._mapping = {}
     root = Resource('root', visible=False, observable=False, allow_children=True)
     root.path = '/'
     self.root = Tree(root)
     self.file_xml = file_xml
Example #5
0
    def __init__(self, server_address, 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()

        host, port = server_address
        ret = socket.getaddrinfo(host, port)
        family, socktype, proto, canonname, sockaddr = ret[0]

        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

        # IPv4 or IPv6
        if len(sockaddr) == 4:
            self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        else:
            self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        if self.multicast:
            # Set some options to make it multicast-friendly
            try:
                    self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
            except AttributeError:
                    pass  # Some systems don't support SO_REUSEPORT
            self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL, 20)
            self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1)

            # Bind to the port
            self._socket.bind(self.server_address)

            # Set some more multicast options
            interface = socket.gethostbyname(socket.gethostname())
            self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_IF, socket.inet_aton(interface))
            self._socket.setsockopt(socket.SOL_IP, socket.IP_ADD_MEMBERSHIP, socket.inet_aton(self.server_address)
                                    + socket.inet_aton(interface))
        else:
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

            self._socket.bind(self.server_address)
Example #6
0
    def __init__(self, server_address, 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

        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)
Example #7
0
 def create_subtree(self, paths):
     node = self._parent.root
     assert isinstance(paths, list)
     assert isinstance(node, Tree)
     last = None
     while True:
         last, failed_resource = node.find_complete_last(paths)
         if failed_resource is None:
             break
         resource = Resource(name="subtree", visible=True, observable=False, allow_children=True)
         method = getattr(resource, "new_resource", None)
         resource = method()
         resource.payload = None
         resource.path = failed_resource
         last.add_child(resource)
     return last
 def discover_remote_results(self, response):
     host, port = response.source
     key = hash(str(host) + str(port) + str(response.token))
     request = self._forward.get(key)
     if request is not None:
         del self._forward[key]
         host, port = response.source
         key = hash(str(host) + str(port) + str(response.mid))
         try:
             del self._forward_mid[key]
         except KeyError:
             log.err("MID has not been deleted")
         if response.code == defines.responses["CONTENT"]:
             resource = Resource('server', visible=True, observable=False, allow_children=True)
             resource.path = str(host) + ":" + str(port)
             resource = self.root.add_child(resource)
             self._mapping[str(host) + str(port)] = self.parse_core_link_format(response.payload, resource)
         else:
             log.err("Server: " + response.source + " isn't valid.")
Example #9
0
    def discover_remote_results(self, response, name):
        host, port = response.source

        if response.code == defines.Codes.CONTENT.number:
            resource = Resource('server',
                                self,
                                visible=True,
                                observable=False,
                                allow_children=True)
            self.add_resource(name, resource)
            self._mapping[name] = (host, port)
            self.parse_core_link_format(response.payload, name, (host, port))
        else:
            logger.error("Server: " + response.source + " isn't valid.")
Example #10
0
    def discover_remote_results(self, response, name):
        """
        Create a new remote server resource for each valid discover response.

        :param response: the response to the discovery request
        :param name: the server name
        """
        host, port = response.source

        if response.code == defines.Codes.CONTENT.number:
            resource = Resource('server',
                                self,
                                visible=True,
                                observable=False,
                                allow_children=True)
            self.add_resource(name, resource)
            self._mapping[name] = (host, port)
            self.parse_core_link_format(response.payload, name, (host, port))
        else:
            logger.error("Server: " + response.source + " isn't valid.")
Example #11
0
    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)
Example #12
0
    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)
Example #13
0
    def __init__(self, server_address, multicast=False):
        """
        Initialize the CoAP protocol

        """
        host, port = server_address
        ret = socket.getaddrinfo(host, port)
        family, socktype, proto, canonname, sockaddr = ret[0]

        self.stopped = threading.Event()
        self.stopped.clear()
        self.stopped_mid = threading.Event()
        self.stopped_mid.clear()
        self.stopped_ack = threading.Event()
        self.stopped_ack.clear()
        self.executor = concurrent.futures.ThreadPoolExecutor(max_workers=10)
        self.pending_futures = []
        self.executor_req = concurrent.futures.ThreadPoolExecutor(max_workers=10)
        self.received = {}
        self.sent = {}
        self.call_id = {}
        self.relation = {}
        self.blockwise = {}
        self._currentMID = random.randint(1, 1000)

        # Resource directory
        root = Resource('root', self, visible=False, observable=False, allow_children=True)
        root.path = '/'
        self.root = Tree()
        self.root["/"] = root

        # Initialize layers
        self.request_layer = RequestLayer(self)
        self.blockwise_layer = BlockwiseLayer(self)
        self.resource_layer = ResourceLayer(self)
        self.message_layer = MessageLayer(self)
        self.observe_layer = ObserveLayer(self)

        # Clean MIDs
        self.timer_mid = threading.Timer(defines.EXCHANGE_LIFETIME, self.purge_mids)
        self.timer_mid.start()

        self.server_address = server_address
        self.multicast = multicast

        # IPv4 or IPv6
        if len(sockaddr) == 4:
            self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        else:
            self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        if self.multicast:
            # Set some options to make it multicast-friendly
            try:
                    self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
            except AttributeError:
                    pass  # Some systems don't support SO_REUSEPORT
            self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL, 20)
            self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1)

            # Bind to the port
            self._socket.bind(self.server_address)

            # Set some more multicast options
            interface = socket.gethostbyname(socket.gethostname())
            self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_IF, socket.inet_aton(interface))
            self._socket.setsockopt(socket.SOL_IP, socket.IP_ADD_MEMBERSHIP, socket.inet_aton(self.server_address)
                                    + socket.inet_aton(interface))
        else:
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

            self._socket.bind(self.server_address)
Example #14
0
    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((defines.ALL_COAP_NODES, 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)
                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:
                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)
Example #15
0
    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)
Example #16
0
    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()

        host, port = server_address
        ret = socket.getaddrinfo(host, port)
        family, socktype, proto, canonname, sockaddr = ret[0]

        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

        # IPv4 or IPv6
        if len(sockaddr) == 4:
            self._socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        else:
            self._socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

        if self.multicast:
            self._socket.bind(("", self.server_address[1]))
            try:
                group = socket.inet_aton(self.server_address[0])
            except:
                group = self.server_address[0]
            mreq = struct.pack("4sL", group, socket.INADDR_ANY)
            self._socket.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)

            # # Set some options to make it multicast-friendly
            # try:
            #         self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
            # except AttributeError:
            #         pass  # Some systems don't support SO_REUSEPORT
            # self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_TTL, 20)
            # self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_LOOP, 1)
            #
            # # Bind to the port
            # self._socket.bind(self.server_address)
            #
            # # Set some more multicast options
            # interface = socket.gethostbyname(socket.gethostname())
            # self._socket.setsockopt(socket.SOL_IP, socket.IP_MULTICAST_IF, socket.inet_aton(interface))
            # self._socket.setsockopt(socket.SOL_IP, socket.IP_ADD_MEMBERSHIP, socket.inet_aton(self.server_address[0])
            #                         + socket.inet_aton(interface))
        else:
            self._socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

            self._socket.bind(self.server_address)
Example #17
0
    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)
Example #18
0
    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()
Example #19
0
    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)