def __init__(self, server_name='', host=None, port=None, adapter=None):
""" WebServer class constructor.
@param server_name: server name
@param host: host to listen on
@param port: port to listen on
@param adapter: optional, can receive an adapter retrieved with
get_available_adapters()
@type server_name: string
@type host: string
@type port: int
@type adapter: AdapterInterface
@note: the only parameter that should be always passed is the server
name. In most case scenarios, the others can be guessed/assigned
automatically by the webserver.
"""
Resource.__init__(self, '/')
self.server_name = server_name
self.host = None
self.port = None
self.adapter = None
self.running = False
if adapter and not issubclass(adapter, AdapterInterface):
# Invalid adapter
raise TypeError('Adapter must implement AdapterInterface')
elif adapter:
# Adapter OK
self.adapter = adapter()
else:
pref = get_preferred_adapter()
if not pref:
# First available adapter
available = get_available_adapters()
if len(available) > 0:
self.adapter = available[0]()
else:
# Preferred adapter
self.adapter = pref()
if not self.adapter:
log.critical('Could not select a adapter. Check the supported '\
'adapters and install one of them on your system.')
raise SystemExit
if not self.host and not self.port:
self._generate_random_address()
else:
self.set_bind_address(host, port)
self.adapter.setup(self.server_name, self.host, self.port,
self.application)
def __init__(self, server_name='', host=None, port=None, adapter=None):
""" WebServer class constructor.
@param server_name: server name
@param host: host to listen on
@param port: port to listen on
@param adapter: optional, can receive an adapter retrieved with
get_available_adapters()
@type server_name: string
@type host: string
@type port: int
@type adapter: AdapterInterface
@note: the only parameter that should be always passed is the server
name. In most case scenarios, the others can be guessed/assigned
automatically by the webserver.
"""
Resource.__init__(self, '/')
self.server_name = server_name
self.host = None
self.port = None
self.adapter = None
self.running = False
if adapter and not issubclass(adapter, AdapterInterface):
# Invalid adapter
raise TypeError('Adapter must implement AdapterInterface')
elif adapter:
# Adapter OK
self.adapter = adapter()
else:
pref = get_preferred_adapter()
if not pref:
# First available adapter
available = get_available_adapters()
if len(available) > 0:
self.adapter = available[0]()
else:
# Preferred adapter
self.adapter = pref()
if not self.adapter:
log.critical('Could not select a adapter. Check the supported '\
'adapters and install one of them on your system.')
raise SystemExit
if not self.host and not self.port:
self._generate_random_address()
else:
self.set_bind_address(host, port)
self.adapter.setup(self.server_name, self.host, self.port,
self.application)
def _create_socket(self, shared):
""" Creates the socket if a shared socket has not been passed to the
constructor.
@param shared: socket to be reused
@type shared: socket.socket
"""
if shared:
self.socket = shared
else:
self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_UDP)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
self.socket.bind((self.interface, self.port))
self.mreq = pack('4sl', socket.inet_aton(self.addr),
socket.INADDR_ANY)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP,
self.mreq)
except Exception, e:
log.critical('Cannot create socket: %s' % str(e))
raise CannotListenError(self.interface, self.port, self.addr,
"Couldn't bind address")
def _create_socket(self, shared):
""" Creates the socket if a shared socket has not been passed to the
constructor.
@param shared: socket to be reused
@type shared: socket.socket
"""
if shared:
self.socket = shared
else:
self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_UDP)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
try:
self.socket.bind((self.interface, self.port))
self.mreq = pack('4sl', socket.inet_aton(self.addr),
socket.INADDR_ANY)
self.socket.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP,
self.mreq)
except Exception, e:
log.critical('Cannot create socket: %s' % str(e))
raise CannotListenError(self.interface, self.port, self.addr,
"Couldn't bind address")
