def sendThroughSocket(sock, to_send, delim='\n\n', wait_for_response=True):
code = ''
detail = ''
msg = ''
try:
sock.sendall(to_send)
logging.debug('Message sent to server')
if wait_for_response:
first, sep, msg = common.recvEnd(sock, delim).partition('\n')
code, sep, detail = first.partition(' ')
msg, sep, garbage = msg.partition('\n')
code.strip()
detail.strip()
msg.strip()
logging.debug('Response from the server (response code): %s %s' %
(code, detail))
logging.debug('Response from the server (response): %s' % msg)
except socket.error, e:
code = helper.getMonitorUnreachableError()
msg = 'Connection error'
def run(self):
"""run() -> void
Handles the communication events and errors with a client.
"""
CommandHandler._registerThread(CommandHandler, self)
sock = self.sock
sock.settimeout(self.timeout)
try:
while True:
data = common.recvEnd(sock, '\n')
# Connection closed
if not data: break
data = data.strip()
if helper.isCmdQuit(data): # QUIT
break
elif helper.isCmdList(data): # LIST
self._sendMonitorsList()
elif helper.isCmdGetAll(data): # GET ALL
self._sendGetAll()
elif helper.isCmdUpdateAll(data): # UPDATE ALL
self._sendUpdateAll()
else:
cmd, sep, body = data.partition(' ')
body = body.strip()
if helper.isCmdGet(cmd): # GET
self._handleGet(body)
elif helper.isCmdUpdate(cmd): # UPDATE
self._handleUpdate(body)
else:
logging.info("Unknown command from %s:%d" % self.addr)
self.sock.sendall(
helper.getUnknownCmdError(
"Unknown command: %s" % data)
)
except socket.timeout:
logging.debug("Socket TIMEOUT %s:%d" % self.addr)
sock.sendall( helper.getTimeoutError(
"Reached timeout of %.1f seconds" % self.timeout)
)
except IOError:
logging.warning("Error sending data to %s:%d" % self.addr)
finally:
sock.close()
logging.debug("Command handler closed socket to %s:%s" % self.addr)
CommandHandler._unregisterThread(CommandHandler, self)
def run(self):
"""run() -> void
Handles the communication events and errors with a client.
"""
CommandHandler._registerThread(CommandHandler, self)
sock = self.sock
sock.settimeout(self.timeout)
try:
while True:
data = common.recvEnd(sock, '\n')
# Connection closed
if not data: break
data = data.strip()
if helper.isCmdQuit(data): # QUIT
break
elif helper.isCmdList(data): # LIST
self._sendMonitorsList()
elif helper.isCmdGetAll(data): # GET ALL
self._sendGetAll()
elif helper.isCmdUpdateAll(data): # UPDATE ALL
self._sendUpdateAll()
else:
cmd, sep, body = data.partition(' ')
body = body.strip()
if helper.isCmdGet(cmd): # GET
self._handleGet(body)
elif helper.isCmdUpdate(cmd): # UPDATE
self._handleUpdate(body)
else:
logging.info("Unknown command from %s:%d" % self.addr)
self.sock.sendall(
helper.getUnknownCmdError("Unknown command: %s" %
data))
except socket.timeout:
logging.debug("Socket TIMEOUT %s:%d" % self.addr)
sock.sendall(
helper.getTimeoutError("Reached timeout of %.1f seconds" %
self.timeout))
except IOError:
logging.warning("Error sending data to %s:%d" % self.addr)
finally:
sock.close()
logging.debug("Command handler closed socket to %s:%s" % self.addr)
CommandHandler._unregisterThread(CommandHandler, self)
def _sendUpdateToMonitor(self, ip, port):
# Send Update to monitor and get response
s = socket.create_connection((ip, port), self.timeout)
s.sendall("%s\n" % gdata.CMD_UPDATE)
ret = common.recvEnd(s, '\n').strip()
code, sep, desc = ret.partition(' ')
# Send result to client
msg = None
if code == gdata.K_OK:
msg = helper.getOkMessage(desc)
else:
msg = helper.getGenericError("Received error: %s" % ret)
self.sock.sendall(msg)
def _sendUpdateToMonitor(self, ip, port):
# Send Update to monitor and get response
s = socket.create_connection( (ip, port), self.timeout )
s.sendall("%s\n" % gdata.CMD_UPDATE)
ret = common.recvEnd(s, '\n').strip()
code, sep, desc = ret.partition(' ')
# Send result to client
msg = None
if code == gdata.K_OK:
msg = helper.getOkMessage(desc)
else:
msg = helper.getGenericError("Received error: %s" % ret)
self.sock.sendall(msg)
def _updateMonitor(self, mid):
if srvdata.existsMonitorData(mid):
srvdata.keepAliveMonitor(mid)
data = common.recvEnd(self.sock, gdata.ETX).strip()
#logging.debug("%s:%d Data:\n%s" % (self.addr[0], self.addr[1], data))
infoparser = common.SysInfoXMLParser()
infoparser.parseXML(data)
infodao = infoparser.getSysInfoData()
srvdata.updateMonitorData(mid, infodao)
self.sock.sendall(helper.getOkMessage("Update successful"))
logging.debug("Update %s successful" % mid)
else:
self.sock.sendall(
helper.getMonitorNotFoundError(
"There isn't any monitor with id: %s" % mid))
def _updateMonitor(self, mid):
if srvdata.existsMonitorData(mid):
srvdata.keepAliveMonitor(mid)
data = common.recvEnd(self.sock, gdata.ETX).strip()
#logging.debug("%s:%d Data:\n%s" % (self.addr[0], self.addr[1], data))
infoparser = common.SysInfoXMLParser()
infoparser.parseXML(data)
infodao = infoparser.getSysInfoData()
srvdata.updateMonitorData(mid, infodao)
self.sock.sendall( helper.getOkMessage("Update successful") )
logging.debug("Update %s successful" % mid)
else:
self.sock.sendall(
helper.getMonitorNotFoundError(
"There isn't any monitor with id: %s" % mid)
)
def _updateFromOther(sock, instruction, params, timeout):
try:
ip, port = params.strip().split(':')
port = int(port)
response = ''
sock_to_other = socket.create_connection((ip, port), timeout)
sock_to_other.sendall(instruction + '\n')
msg = common.recvEnd(sock_to_other, '\n\n') + '\n\n'
response_head, sep, rest = msg.partition(' ')
if response_head != gdata.K_OK:
msg = helper.getGenericError('Bad response')
except ValueError:
msg = helper.getUnknownCmdError('Bad formatted parameters')
except socket.error, e:
msg = helper.getMonitorUnreachableError('Connection failed')
def _updateFromOther(sock, instruction, params, timeout):
try:
ip, port = params.strip().split(':')
port = int(port)
response = ''
sock_to_other = socket.create_connection((ip, port), timeout)
sock_to_other.sendall(instruction + '\n')
msg = common.recvEnd(sock_to_other, '\n\n') + '\n\n'
response_head, sep, rest = msg.partition(' ')
if response_head != gdata.K_OK:
msg = helper.getGenericError('Bad response')
except ValueError:
msg = helper.getUnknownCmdError('Bad formatted parameters')
except socket.error, e:
msg = helper.getMonitorUnreachableError('Connection failed')
def run(self):
"""run() -> void
Handles the communication events and errors with a resource monitor.
"""
MonitorHandler._registerThread(MonitorHandler, self)
sock = self.sock
sock.settimeout(self.timeout)
try:
data = common.recvEnd(sock, gdata.ETX)
if data:
logging.debug("%s:%d Data:\n%s" %
(self.addr[0], self.addr[1], data))
head, sep, body = data.partition(' ')
head = head.strip()
body = body.strip()
if helper.isBEL(head): # New monitor
self._newMonitor(body)
elif helper.isSOH(head): # Monitor data update
self._updateMonitor(body)
else: # Unknown data
logging.info("Unknown monitor message '%s' from %s:%d" %
(data, self.addr[0], self.addr[1]))
sock.sendall(helper.getBadMessageError("Wrong message"))
except socket.timeout:
logging.debug("Socket TIMEOUT %s:%d" % self.addr)
sock.sendall(
helper.getTimeoutError("Reached timeout of %.1f seconds" %
self.timeout))
except AttributeError, e:
sock.sendall(helper.getGenericError(str(e)))
def run(self):
"""run() -> void
Handles the communication events and errors with a resource monitor.
"""
MonitorHandler._registerThread(MonitorHandler, self)
sock = self.sock
sock.settimeout( self.timeout )
try:
data = common.recvEnd(sock, gdata.ETX)
if data:
logging.debug("%s:%d Data:\n%s" % (self.addr[0], self.addr[1],
data))
head, sep, body = data.partition(' ')
head = head.strip()
body = body.strip()
if helper.isBEL(head): # New monitor
self._newMonitor(body)
elif helper.isSOH(head): # Monitor data update
self._updateMonitor(body)
else: # Unknown data
logging.info("Unknown monitor message '%s' from %s:%d" %
(data, self.addr[0], self.addr[1]) )
sock.sendall( helper.getBadMessageError("Wrong message") )
except socket.timeout:
logging.debug("Socket TIMEOUT %s:%d" % self.addr)
sock.sendall( helper.getTimeoutError(
"Reached timeout of %.1f seconds" % self.timeout)
)
except AttributeError, e:
sock.sendall( helper.getGenericError(str(e)) )
def sendThroughSocket(sock, to_send, delim='\n\n', wait_for_response=True):
code = ''
detail = ''
msg = ''
try:
sock.sendall(to_send)
logging.debug('Message sent to server')
if wait_for_response:
first, sep, msg = common.recvEnd(sock, delim).partition('\n')
code, sep, detail = first.partition(' ')
msg, sep, garbage = msg.partition('\n')
code.strip()
detail.strip()
msg.strip()
logging.debug('Response from the server (response code): %s %s' % (code, detail))
logging.debug('Response from the server (response): %s' % msg)
except socket.error, e:
code = helper.getMonitorUnreachableError()
msg = 'Connection error'
