def connect_immediate(self, server: str, portstring: Union[str, int],
code: str) -> bool:
port = get_port(portstring)
proto = socket.getprotobyname("tcp")
try:
self.immsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM,
proto)
self.immsock.connect((server, port))
except socket.error as x:
self.immsock.close()
self.immsock = None
log.error("ERROR creating/connecting immediate socket: " + str(x))
return False
log.info("Connected to immediate port " + str(port) + " on server " +
server)
# Disable the Nagle algorithm:
self.immsock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
self.immsock.setblocking(True)
self.send_immediate("Link " + code)
sleeptime = 0.1
log.info("Sleeping for " + str(sleeptime) +
" seconds as the Nagle-disabling feature of Python "
"isn't working properly...")
time.sleep(sleeptime)
# the Nagle business isn't working; the Link packet is getting
# amalgamated with anything the main calling program starts to send.
# So pause.
log.info("... continuing. Immediate socket should now be "
"correctly linked.")
return True
def connect_immediate(self, server: str, portstring: Union[str, int],
code: str) -> bool:
port = get_port(portstring)
proto = socket.getprotobyname("tcp")
try:
self.immsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM,
proto)
self.immsock.connect((server, port))
except socket.error as x:
self.immsock.close()
self.immsock = None
log.error("ERROR creating/connecting immediate socket: " +
str(x))
return False
log.info("Connected to immediate port " + str(port) +
" on server " + server)
# Disable the Nagle algorithm:
self.immsock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
self.immsock.setblocking(True)
self.send_immediate("Link " + code)
sleeptime = 0.1
log.info("Sleeping for " + str(sleeptime) +
" seconds as the Nagle-disabling feature of Python "
"isn't working properly...")
time.sleep(sleeptime)
# the Nagle business isn't working; the Link packet is getting
# amalgamated with anything the main calling program starts to send.
# So pause.
log.info("... continuing. Immediate socket should now be "
"correctly linked.")
return True
def connect(self, server: str, port: Union[str, int]) -> None:
self.server = server
self.mainport = get_port(port)
log.info(
"Attempting to connect to Whisker server {s} on port {p}".format(
s=self.server, p=self.mainport))
# noinspection PyUnresolvedReferences
reactor.connectTCP(self.server, self.mainport, self.mainfactory)
def connect(self, server: str, port: Union[str, int]) -> None:
self.server = server
self.mainport = get_port(port)
log.info(
"Attempting to connect to Whisker server {s} on port {p}".format(
s=self.server,
p=self.mainport
))
# noinspection PyUnresolvedReferences
reactor.connectTCP(self.server, self.mainport, self.mainfactory)
def connect_main(self, server: str, portstring: Union[str, int]) -> bool:
"""Connect the main port to the server."""
log.info("Connecting main port to server.")
port = get_port(portstring)
proto = socket.getprotobyname("tcp")
try:
self.mainsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM,
proto)
self.mainsock.connect((server, port))
except socket.error as x:
# "except socket.error, msg" used to work; see
# http://stackoverflow.com/questions/2535760
self.mainsock.close()
self.mainsock = None
log.error("ERROR creating/connecting main socket: " + str(x))
return False
log.info("Connected to main port " + str(port) +
" on server " + server)
# Disable the Nagle algorithm:
self.mainsock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
return True
def connect_main(self, server: str, portstring: Union[str, int]) -> bool:
"""Connect the main port to the server."""
log.info("Connecting main port to server.")
port = get_port(portstring)
proto = socket.getprotobyname("tcp")
try:
self.mainsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM,
proto)
self.mainsock.connect((server, port))
except socket.error as x:
# "except socket.error, msg" used to work; see
# http://stackoverflow.com/questions/2535760
self.mainsock.close()
self.mainsock = None
log.error("ERROR creating/connecting main socket: " + str(x))
return False
log.info("Connected to main port " + str(port) + " on server " +
server)
# Disable the Nagle algorithm:
self.mainsock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
return True
def incoming_message(self, msg: str) -> None:
# log.debug("INCOMING MESSAGE: " + str(msg))
handled = False
if not self.immport:
m = re.search(r"^ImmPort: (\d+)", msg)
if m:
self.immport = get_port(m.group(1))
handled = True
if not self.code:
m = re.search(r"^Code: (\w+)", msg)
if m:
self.code = m.group(1)
handled = True
if (not self.immsocket) and (self.immport and self.code):
self.connect_immediate()
if handled:
return
(msg, timestamp) = split_timestamp(msg)
if msg == "Ping":
# If the server has sent us a Ping, acknowledge it.
self.send("PingAcknowledged")
return
if msg.startswith(EVENT_PREFIX):
# The server has sent us an event.
event = msg[len(EVENT_PREFIX):]
self.incoming_event(event, timestamp)
return
if msg.startswith(KEY_EVENT_PREFIX):
kmsg = msg[len(KEY_EVENT_PREFIX):]
# key on|off document
m = re.match(r"(\w+)\s+(\w+)\s+(\w+)", kmsg)
if m:
key = m.group(1)
depressed = on_off_to_boolean(m.group(2))
document = m.group(3)
self.incoming_key_event(key, depressed, document, timestamp)
return
if msg.startswith(CLIENT_MESSAGE_PREFIX):
cmsg = msg[len(CLIENT_MESSAGE_PREFIX):]
# fromclientnum message
m = re.match(r"(\w+)\s+(.+)", cmsg)
if m:
try:
fromclientnum = int(m.group(1))
clientmsg = m.group(2)
self.incoming_client_message(fromclientnum, clientmsg,
timestamp)
except (TypeError, ValueError):
pass
return
if msg.startswith(INFO_PREFIX):
self.incoming_info(msg)
return
if msg.startswith(WARNING_PREFIX):
self.incoming_warning(msg)
return
if msg.startswith(SYNTAX_ERROR_PREFIX):
self.incoming_syntax_error(msg)
return
if msg.startswith(ERROR_PREFIX):
self.incoming_error(msg)
return
log.debug("Unhandled incoming_message: " + str(msg))
def incoming_message(self, msg: str) -> None:
# log.debug("INCOMING MESSAGE: " + str(msg))
handled = False
if not self.immport:
m = re.search(r"^ImmPort: (\d+)", msg)
if m:
self.immport = get_port(m.group(1))
handled = True
if not self.code:
m = re.search(r"^Code: (\w+)", msg)
if m:
self.code = m.group(1)
handled = True
if (not self.immsocket) and (self.immport and self.code):
self.connect_immediate()
if handled:
return
(msg, timestamp) = split_timestamp(msg)
if msg == "Ping":
# If the server has sent us a Ping, acknowledge it.
self.send("PingAcknowledged")
return
if msg.startswith(EVENT_PREFIX):
# The server has sent us an event.
event = msg[len(EVENT_PREFIX):]
self.incoming_event(event, timestamp)
return
if msg.startswith(KEY_EVENT_PREFIX):
kmsg = msg[len(KEY_EVENT_PREFIX):]
# key on|off document
m = re.match(r"(\w+)\s+(\w+)\s+(\w+)", kmsg)
if m:
key = m.group(1)
depressed = on_off_to_boolean(m.group(2))
document = m.group(3)
self.incoming_key_event(key, depressed, document, timestamp)
return
if msg.startswith(CLIENT_MESSAGE_PREFIX):
cmsg = msg[len(CLIENT_MESSAGE_PREFIX):]
# fromclientnum message
m = re.match(r"(\w+)\s+(.+)", cmsg)
if m:
try:
fromclientnum = int(m.group(1))
clientmsg = m.group(2)
self.incoming_client_message(fromclientnum, clientmsg,
timestamp)
except (TypeError, ValueError):
pass
return
if msg.startswith(INFO_PREFIX):
self.incoming_info(msg)
return
if msg.startswith(WARNING_PREFIX):
self.incoming_warning(msg)
return
if msg.startswith(SYNTAX_ERROR_PREFIX):
self.incoming_syntax_error(msg)
return
if msg.startswith(ERROR_PREFIX):
self.incoming_error(msg)
return
log.debug("Unhandled incoming_message: " + str(msg))
