Python socket.AI_V4MAPPED Examples

The following are 5 code examples of socket.AI_V4MAPPED(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module socket , or try the search function .
Example #1
Source File: server.py    From teleport with Apache License 2.0 6 votes vote down vote up 
def address_info(self):
        conf_refresh_interval = get_config_parameter('ADDRESS_INFO_REFRESH_TIME')
        if not self._address_info or (datetime.now() - self._address_info_resolved_time).seconds > conf_refresh_interval:
            # converts addresses tuple to list and adds a 6th parameter for availability (None = not checked, True = available, False=not available) and a 7th parameter for the checking time
            addresses = None
            try:
                if self.ipc:
                    addresses = [(socket.AF_UNIX, socket.SOCK_STREAM, 0, None, self.host, None)]
                else:
                    if self.mode == IP_V4_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
                    elif self.mode == IP_V6_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET6, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
                    else:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
            except (socket.gaierror, AttributeError):
                pass

            if not addresses:  # if addresses not found or raised an exception (for example for bad flags) tries again without flags
                try:
                    if self.mode == IP_V4_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                    elif self.mode == IP_V6_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET6, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                    else:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                except socket.gaierror:
                    pass

            if addresses:
                self._address_info = [list(address) + [None, None] for address in addresses]
                self._address_info_resolved_time = datetime.now()
            else:
                self._address_info = []
                self._address_info_resolved_time = datetime(MINYEAR, 1, 1)  # smallest date

            if log_enabled(BASIC):
                for address in self._address_info:
                    log(BASIC, 'address for <%s> resolved as <%r>', self, address[:-2])
        return self._address_info
Example #2
Source File: server.py    From teleport with Apache License 2.0 5 votes vote down vote up 
def address_info(self):
        conf_refresh_interval = get_config_parameter('ADDRESS_INFO_REFRESH_TIME')
        if not self._address_info or (datetime.now() - self._address_info_resolved_time).seconds > conf_refresh_interval:
            # converts addresses tuple to list and adds a 6th parameter for availability (None = not checked, True = available, False=not available) and a 7th parameter for the checking time
            addresses = None
            try:
                if self.ipc:
                    addresses = [(socket.AF_UNIX, socket.SOCK_STREAM, 0, None, self.host, None)]
                else:
                    addresses = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
            except (socket.gaierror, AttributeError):
                pass

            if not addresses:  # if addresses not found or raised an exception (for example for bad flags) tries again without flags
                try:
                    addresses = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                except socket.gaierror:
                    pass

            if addresses:
                self._address_info = [list(address) + [None, None] for address in addresses]
                self._address_info_resolved_time = datetime.now()
            else:
                self._address_info = []
                self._address_info_resolved_time = datetime(MINYEAR, 1, 1)  # smallest date

            if log_enabled(BASIC):
                for address in self._address_info:
                    log(BASIC, 'address for <%s> resolved as <%r>', self, address[:-2])
        return self._address_info
Example #3
Source File: server.py    From teleport with Apache License 2.0 5 votes vote down vote up 
def address_info(self):
        conf_refresh_interval = get_config_parameter('ADDRESS_INFO_REFRESH_TIME')
        if not self._address_info or (datetime.now() - self._address_info_resolved_time).seconds > conf_refresh_interval:
            # converts addresses tuple to list and adds a 6th parameter for availability (None = not checked, True = available, False=not available) and a 7th parameter for the checking time
            addresses = None
            try:
                if self.ipc:
                    addresses = [(socket.AF_UNIX, socket.SOCK_STREAM, 0, None, self.host, None)]
                else:
                    if self.mode == IP_V4_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
                    elif self.mode == IP_V6_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET6, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
                    else:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
            except (socket.gaierror, AttributeError):
                pass

            if not addresses:  # if addresses not found or raised an exception (for example for bad flags) tries again without flags
                try:
                    if self.mode == IP_V4_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                    elif self.mode == IP_V6_ONLY:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_INET6, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                    else:
                        addresses = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP)
                except socket.gaierror:
                    pass

            if addresses:
                self._address_info = [list(address) + [None, None] for address in addresses]
                self._address_info_resolved_time = datetime.now()
            else:
                self._address_info = []
                self._address_info_resolved_time = datetime(MINYEAR, 1, 1)  # smallest date

            if log_enabled(BASIC):
                for address in self._address_info:
                    log(BASIC, 'address for <%s> resolved as <%r>', self, address[:-2])
        return self._address_info
Example #4
Source File: ofpmanager.py    From vlcp with Apache License 2.0 5 votes vote down vote up 
def getconnectionsbyendpointname(self, name, vhost = '', timeout = 30):
        "Get connection by endpoint name (Domain name, IP or IPv6 address)"
        # Resolve the name
        if not name:
            endpoint = ''
            return await self.getconnectionbyendpoint(endpoint, vhost)
        else:
            request = (name, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
            # Resolve hostname
            await self.apiroutine.wait_for_send(ResolveRequestEvent(request))
            timeout_, ev, m = await self.apiroutine.wait_with_timeout(timeout, ResolveResponseEvent.createMatcher(request))
            if timeout_:
                # Resolve is only allowed through asynchronous resolver
                #try:
                #    self.addrinfo = socket.getaddrinfo(self.hostname, self.port, socket.AF_UNSPEC, socket.SOCK_DGRAM if self.udp else socket.SOCK_STREAM, socket.IPPROTO_UDP if self.udp else socket.IPPROTO_TCP, socket.AI_ADDRCONFIG|socket.AI_NUMERICHOST)
                #except:
                raise IOError('Resolve hostname timeout: ' + name)
            else:
                if hasattr(ev, 'error'):
                    raise IOError('Cannot resolve hostname: ' + name)
                resp = ev.response
                for r in resp:
                    raddr = r[4]
                    if isinstance(raddr, tuple):
                        # Ignore port
                        endpoint = raddr[0]
                    else:
                        # Unix socket? This should not happen, but in case...
                        endpoint = raddr
                    r = await self.getconnectionsbyendpoint(endpoint, vhost)
                    if r is not None:
                        return r
            return None
Example #5
Source File: ovsdbmanager.py    From vlcp with Apache License 2.0 5 votes vote down vote up 
def getconnectionsbyendpointname(self, name, vhost = '', timeout = 30):
        "Get connection by endpoint name (Domain name, IP or IPv6 address)"
        # Resolve the name
        if not name:
            endpoint = ''
            return await self.getconnectionbyendpoint(endpoint, vhost)
        else:
            request = (name, 0, socket.AF_UNSPEC, socket.SOCK_STREAM, socket.IPPROTO_TCP, socket.AI_ADDRCONFIG | socket.AI_V4MAPPED)
            # Resolve hostname
            await self.apiroutine.wait_for_send(ResolveRequestEvent(request))
            timeout_, ev, _ = await self.apiroutine.wait_with_timeout(timeout, ResolveResponseEvent.createMatcher(request))
            if timeout_:
                # Resolve is only allowed through asynchronous resolver
                #try:
                #    self.addrinfo = socket.getaddrinfo(self.hostname, self.port, socket.AF_UNSPEC, socket.SOCK_DGRAM if self.udp else socket.SOCK_STREAM, socket.IPPROTO_UDP if self.udp else socket.IPPROTO_TCP, socket.AI_ADDRCONFIG|socket.AI_NUMERICHOST)
                #except:
                raise IOError('Resolve hostname timeout: ' + name)
            else:
                if hasattr(ev, 'error'):
                    raise IOError('Cannot resolve hostname: ' + name)
                resp = ev.response
                for r in resp:
                    raddr = r[4]
                    if isinstance(raddr, tuple):
                        # Ignore port
                        endpoint = raddr[0]
                    else:
                        # Unix socket? This should not happen, but in case...
                        endpoint = raddr
                    r = await self.getconnectionsbyendpoint(endpoint, vhost)
                    if r is not None:
                        return r