def _quitHandler(signum, frame):
"""
Cleanly shuts down this daemon upon receipt of a SIGTERM.
@type signum: int
@param signum: The kill-signal constant received. This will always be
SIGTERM.
@type frame: int
@param frame: The stack-frame in which the kill-signal was received.
This is not used.
"""
#Remove PID.
try:
os.unlink(conf.PID_FILE)
except:
pass
logging.logToDisk()
exit(0)
def _logHandler(signum, frame):
"""
Flushes DHCP cache and writes log to disk upon receipt of a SIGHUP.
@type signum: int
@param signum: The kill-signal constant received. This will always be
SIGHUP.
@type frame: int
@param frame: The stack-frame in which the kill-signal was received.
This is not used.
"""
dhcp.flushCache()
if not logging.logToDisk():
logging.writeLog("Unable to write logfile: %(log)s" % {'log': conf.LOG_FILE,})
else:
logging.writeLog("Wrote log to '%(log)s'" % {'log': conf.LOG_FILE,})
def do_POST(self):
"""
Handles all HTTP POST requests.
This checks to see if the user entered the flush key and, if so,
flushes the cache and writes the memory-log to disk.
"""
try:
(ctype, pdict) = cgi.parse_header(self.headers.getheader('content-type'))
if ctype == 'application/x-www-form-urlencoded':
query = parse_qs(self.rfile.read(int(self.headers.getheader('content-length'))))
key = query.get('key')
if key:
if hashlib.md5(key[0]).hexdigest() == conf.WEB_RELOAD_KEY:
dhcp.flushCache()
if logging.logToDisk():
logging.writeLog("Wrote log to '%(log)s'" % {'log': conf.LOG_FILE,})
else:
logging.writeLog("Unable to write log to '%(log)s'" % {'log': conf.LOG_FILE,})
else:
logging.writeLog("Invalid Web-access-key provided")
except Exception, e:
logging.writeLog("Problem while processing POST in Web module: %(error)s" % {'error': str(e),})