def handle(self):
# self.request is the TCP socket connected to the client
logger.info("handle - open_conn - " + self.client_address[0])
printer = Printer(logger)
emptyRequest = False
while emptyRequest == False:
# Wait a maximum of conn_timeout seconds for another request
# If conn_timeout elapses without request, close the connection
ready = select.select([self.request], [], [], conn_timeout)
if not ready[0]:
break
try:
self.data = self.request.recv(1024).strip()
except Exception as e:
logger.error(
"handle - receive - Error receiving data - possible port scan"
)
emptyRequest = True
break
request = self.data.decode('UTF-8')
request = request.replace('\x1b%-12345X', '')
if request[0:2] == '%!':
printer.receiving_postscript = True
printer.postscript_data = request
logger.info(
'handle - postscript - Received first postscript request of file'
)
continue
elif printer.receiving_postscript:
printer.postscript_data += request
if '%%EOF' in request:
printer.save_postscript()
printer.receiving_postscript = False
continue
commands = self.parse_commands(request)
logger.debug('handle - request - ' + str(request.encode('UTF-8')))
if len(
commands
) == 0: # If we're sent an empty request, close the connection
emptyRequest = True
break
try:
response = ''
for command in commands:
command = command.lstrip()
if command.startswith("@PJL "):
command = command[5:]
if printer.printing_raw_job:
printer.save_raw_print_job()
if command.startswith("ECHO"):
response += printer.command_echo(command)
elif command.startswith("USTATUSOFF"):
response += printer.command_ustatusoff(command)
elif command.startswith("INFO ID"):
response += printer.command_info_id(command)
elif command.startswith("INFO STATUS"):
response += printer.command_info_status(command)
elif command.startswith("FSDIRLIST"):
response += printer.command_fsdirlist(command)
elif command.startswith("FSQUERY"):
response += printer.command_fsquery(command)
elif command.startswith("FSMKDIR"):
response += printer.command_fsmkdir(command)
elif command.startswith("FSUPLOAD"):
response += printer.command_fsupload(command)
elif command.startswith("FSDOWNLOAD"):
response += printer.command_fsdownload(command)
elif command.startswith("RDYMSG"):
response += printer.command_rdymsg(command)
else:
logger.error("handle - cmd_unknown - " +
str(command))
else:
response += printer.append_raw_print_job(command)
logger.info("handle - response - " +
str(response.encode('UTF-8')))
self.request.sendall(response.encode('UTF-8'))
except Exception as e:
tb = sys.exc_info()[2]
traceback.print_tb(tb)
logger.error("handle - error_caught - " + str(e))
if printer.printing_raw_job:
printer.save_raw_print_job()
logger.info("handle - close_conn - " + self.client_address[0])
def handle(self):
hpclient = hpfeeds.new(HPF_HOST, HPF_PORT, HPF_IDENT, HPF_SECRET)
# self.request is the TCP socket connected to the client
source_ip = self.client_address[0]
source_port = self.client_address[1]
dest_ip = socket.gethostbyname(socket.gethostname())
dest_port = self.server.server_address[1]
printer = Printer(logger, source_ip)
logger.info("handle - open_conn - " + source_ip + ":" + str(source_port))
printer.events_list.append("handle - open_conn - " + source_ip + ":" + str(source_port))
emptyRequest = False
while emptyRequest == False:
# Wait a maximum of conn_timeout seconds for another request
# If conn_timeout elapses without request, close the connection
ready = select.select([self.request], [], [], conn_timeout)
if not ready[0]:
break
try:
self.data = self.request.recv(1024).strip()
except Exception as e:
logger.error("handle - receive - Error receiving data - possible port scan")
printer.events_list.append("handle - receive - Error receiving data - possible port scan")
emptyRequest = True
break
request = self.data.decode('UTF-8')
request = request.replace('\x1b%-12345X', '')
if request[0:2] == '%!':
printer.receiving_postscript = True
printer.postscript_data = request
logger.info('handle - postscript - Received first postscript request of file')
printer.events_list.append('handle - postscript - Received first postscript request of file')
continue
elif printer.receiving_postscript:
printer.postscript_data += request
if '%%EOF' in request:
printer.save_postscript()
printer.receiving_postscript = False
continue
commands = self.parse_commands(request)
logger.debug('handle - request - ' + str(request.encode('UTF-8')))
printer.events_list.append('handle - request - ' + str(request.encode('UTF-8')))
if len(commands) == 0: # If we're sent an empty request, close the connection
emptyRequest = True
break
try:
response = ''
for command in commands:
command = command.lstrip()
if command.startswith("@PJL "):
command = command[5:]
if printer.printing_raw_job:
printer.save_raw_print_job()
if command.startswith("ECHO"):
response += printer.command_echo(command)
elif command.startswith("USTATUSOFF"):
response += printer.command_ustatusoff(command)
elif command.startswith("INFO ID"):
response += printer.command_info_id(command)
elif command.startswith("INFO STATUS"):
response += printer.command_info_status(command)
elif command.startswith("FSDIRLIST"):
response += printer.command_fsdirlist(command)
elif command.startswith("FSQUERY"):
response += printer.command_fsquery(command)
elif command.startswith("FSMKDIR"):
response += printer.command_fsmkdir(command)
elif command.startswith("FSUPLOAD"):
response += printer.command_fsupload(command)
elif command.startswith("FSDOWNLOAD"):
response += printer.command_fsdownload(command)
elif command.startswith("RDYMSG"):
response += printer.command_rdymsg(command)
else:
logger.error("handle - cmd_unknown - " + str(command))
printer.events_list.append("handle - cmd_unknown - " + str(command))
else:
response += printer.append_raw_print_job(command)
logger.info("handle - response - " + str(response.encode('UTF-8')))
printer.events_list.append("handle - response - " + str(response.encode('UTF-8')))
self.request.sendall(response.encode('UTF-8'))
except Exception as e:
tb = sys.exc_info()[2]
traceback.print_tb(tb)
logger.error("handle - error_caught - " + str(e))
printer.events_list.append("handle - error_caught - " + str(e))
if printer.printing_raw_job:
printer.save_raw_print_job()
logger.info("handle - close_conn - " + source_ip + ":" + str(source_port))
printer.events_list.append("handle - close_conn - " + source_ip + ":" + str(source_port))
now = datetime.now()
events_json = {"source_ip": source_ip, "source_port" : source_port, "dest_ip": dest_ip, "dest_port": dest_port,"timestamp": datetime.timestamp(now), "events": printer.events_list}
hpclient.publish(HPF_CHAN, json.dumps(events_json))
def test_ustatusoff():
p = Printer(logger)
r = p.command_ustatusoff("")
assert r == ''
