def stopnidus(pwd):
"""
stop nidus storage manager.
pwd: Sudo password
"""
try:
cmdline.service('nidusd',pwd,False)
while cmdline.nidusrunning(wraith.NIDUSPID): time.sleep(1.0)
except RuntimeError as e:
return False
else:
return True
def stopdyskt(pwd):
"""
stop dyskt sensor
pwd: Sudo password
"""
try:
cmdline.service('dysktd',pwd,False)
while cmdline.nidusrunning(wraith.DYSKTPID): time.sleep(1.0)
except RuntimeError as e:
return False
else:
return True
def startnidus(pwd):
"""
start nidus server
pwd: the sudo password
"""
try:
cmdline.service('nidusd',pwd)
time.sleep(0.5)
if not cmdline.nidusrunning(wraith.NIDUSPID): raise RuntimeError
except RuntimeError:
return False
else:
return True
def _chknidus(self):
self._sv.set("Checking Nidus...")
self._pb.step(0.5)
if not cmdline.nidusrunning(wraith.NIDUSPID):
self._sv.set("Starting Nidus")
if startnidus(pwd):
self._sv.set("Nidus started")
else:
self._sv.set("Failed to start Nidus")
else:
self._sv.set("Nidus already running")
self._bnidus = True
self._pb.step(2.0)
def _stopnidus(self):
"""
stop nidus storage manager.
NOTE: 1) no state checking done here
2) assumes sudo password is entered
"""
try:
self.logwrite("Shutting down Nidus...",gui.LOG_NOTE)
cmdline.service('nidusd',self._pwd,False)
while cmdline.nidusrunning(wraith.NIDUSPID):
self.logwrite("Nidus still processing data...",gui.LOG_NOTE)
time.sleep(1.0)
except RuntimeError as e:
self.logwrite("Error shutting down Nidus: %s" % e,gui.LOG_ERR)
else:
self._setstate(_STATE_NIDUS_,False)
self.logwrite("Nidus shut down")
def _startnidus(self):
"""
start nidus storage manager
NOTE: 1) no state checking done here
2) assumes sudo password is entered
"""
# attempt to start nidus
try:
self.logwrite("Starting Nidus...",gui.LOG_NOTE)
cmdline.service('nidusd',self._pwd)
time.sleep(0.5)
if not cmdline.nidusrunning(wraith.NIDUSPID): raise RuntimeError('unknown')
except RuntimeError as e:
self.logwrite("Error starting Nidus: %s" % e,gui.LOG_ERR)
else:
self.logwrite("Nidus Started")
self._setstate(_STATE_NIDUS_)
def _stopnidus(self):
"""
stop nidus storage manager.
NOTE: 1) no state checking done here
2) assumes sudo password is entered
"""
try:
self.logwrite("Shutting down Nidus...", gui.LOG_NOTE)
cmdline.service('nidusd', self._pwd, False)
while cmdline.nidusrunning(wraith.NIDUSPID):
self.logwrite("Nidus still processing data...", gui.LOG_NOTE)
time.sleep(1.0)
except RuntimeError as e:
self.logwrite("Error shutting down Nidus: %s" % e, gui.LOG_ERR)
else:
self._setstate(_STATE_NIDUS_, False)
self.logwrite("Nidus shut down")
def _updatestate(self):
""" reevaluates internal state """
# state of nidus
if cmdline.nidusrunning(wraith.NIDUSPID): self._setstate(_STATE_NIDUS_)
else: self._setstate(_STATE_NIDUS_,False)
# state of dyskt
if cmdline.dysktrunning(wraith.DYSKTPID): self._setstate(_STATE_DYSKT_)
else: self._setstate(_STATE_DYSKT_,False)
# state of postgres i.e. store
if cmdline.runningprocess('postgres'): self._setstate(_STATE_STORE_)
else: self._setstate(_STATE_STORE_,False)
# state of our connection - should figure out a way to determine if
# connection is still 'alive'
if self._conn: self._setstate(_STATE_CONN_)
else: self._setstate(_STATE_CONN_,False)
def _startnidus(self):
"""
start nidus storage manager
NOTE: 1) no state checking done here
2) assumes sudo password is entered
"""
# attempt to start nidus
try:
self.logwrite("Starting Nidus...", gui.LOG_NOTE)
cmdline.service('nidusd', self._pwd)
time.sleep(0.5)
if not cmdline.nidusrunning(wraith.NIDUSPID):
raise RuntimeError('unknown')
except RuntimeError as e:
self.logwrite("Error starting Nidus: %s" % e, gui.LOG_ERR)
else:
self.logwrite("Nidus Started")
self._setstate(_STATE_NIDUS_)
def _create(self):
# read in conf file, exit on error
msgs = [(time.strftime('%H:%M:%S'),
"Wraith v%s" % wraith.__version__,
gui.LOG_NOERR)]
self._conf = readconf()
if 'err' in self._conf:
msgs.append((time.strftime('%H:%M:%S'),
"Configuration file is invalid. %s" % self._conf['err'],
gui.LOG_ERR))
return
# determine if postgresql is running
if cmdline.runningprocess('postgres'):
# update self,msg and connect
msgs.append((time.strftime('%H:%M:%S'),
'PostgreSQL is running',
gui.LOG_NOERR))
if not self._pwd: self._bSQL = True
self._setstate(_STATE_STORE_)
(self._conn,ret) = psqlconnect(self._conf['store'])
if not self._conn is None: self._setstate(_STATE_CONN_)
else:
msgs.append((time.strftime('%H:%M:%S'),
"Error connecting to PostgreSQL: %s" % ret,
gui.LOG_ERR))
return
else:
msgs.append((time.strftime('%H:%M:%S'),
"PostgreSQL is not running",
gui.LOG_WARN))
msgs.append((time.strftime('%H:%M:%S'),
"Not connected to database",
gui.LOG_WARN))
# nidus running?
if cmdline.nidusrunning(wraith.NIDUSPID):
msgs.append((time.strftime('%H:%M:%S'),
"Nidus is running",
gui.LOG_NOERR))
self._setstate(_STATE_NIDUS_)
else:
msgs.append((time.strftime('%H:%M:%S'),
"Nidus is not running",
gui.LOG_WARN))
# dyskt running?
if cmdline.dysktrunning(wraith.DYSKTPID):
msgs.append((time.strftime('%H:%M:%S'),
"DySKT is running",
gui.LOG_NOERR))
self._setstate(_STATE_DYSKT_)
else:
msgs.append((time.strftime('%H:%M:%S'),
"DySKt is not running",
gui.LOG_WARN))
# set initial state to initialized
self._setstate(_STATE_INIT_)
# adjust menu options accordingly
self._menuenable()
# show log and write messages
self.viewlog()
self.getpanel("log",True).delayedwrite(msgs)
if stop:
# verify pwd has been set
i = 2
pwd = getpass.unix_getpass(prompt="Password [for %s]:" % getpass.getuser())
while not cmdline.testsudopwd(pwd) and i > 0:
pwd = getpass.unix_getpass(prompt="Incorrect password, try again:")
i -= 1
if not pwd: ap.error("Three incorrect password attempts")
# stop DySKT, then Nidus, then PostgreSQL
sd = sn = sp = True
if cmdline.dysktrunning(wraith.DYSKTPID):
ret = 'ok' if stopdyskt(pwd) else 'fail'
print "Stopping DySKT\t\t\t\t[%s]" % ret
else: print "DySKT not running"
if cmdline.nidusrunning(wraith.NIDUSPID):
ret = 'ok' if stopnidus(pwd) else 'fail'
print "Stopping Nidus\t\t\t\t[%s]" % ret
else: print "Nidus not running"
if cmdline.runningprocess('postgres') and not exclude:
ret = 'ok' if stoppsql(pwd) else 'fail'
print "Stopping PostgreSQL\t\t\t[%s]" % ret
else: print "PostgreSQL not running"
sys.exit(0)
# start specified services
if sopts == 'nogui':
# verify pwd is present
i = 2
pwd = getpass.unix_getpass(prompt="Password [for %s]:" % getpass.getuser())
while not cmdline.testsudopwd(pwd) and i > 0:
def _initialize(self):
""" initialize gui, determine initial state """
# configure panel & write initial message
# have to manually enter the desired size, as the menu does not expand
# the visibile portion automatically
self.tk.wm_geometry("300x1+0+0")
self.tk.resizable(0,0)
self.logwrite("Wraith v%s" % wraith.__version__)
# read in conf file, exit on error
confMsg = self._readconf()
if confMsg:
self.logwrite("Configuration file is invalid. " + confMsg,gui.LOG_ERR)
return
# determine if postgresql is running
if cmdline.runningprocess('postgres'):
self.logwrite('PostgreSQL is running',gui.LOG_NOTE)
self._bSQL = True
# update state
self._setstate(_STATE_STORE_)
curs = None
try:
# attempt to connect and set state accordingly
self._conn = psql.connect(host=self._conf['store']['host'],
dbname=self._conf['store']['db'],
user=self._conf['store']['user'],
password=self._conf['store']['pwd'])
# set to use UTC and enable CONN flag
curs = self._conn.cursor()
curs.execute("set time zone 'UTC';")
self._conn.commit()
self._setstate(_STATE_CONN_)
self.logwrite("Connected to database",gui.LOG_NOTE)
except psql.OperationalError as e:
if e.__str__().find('connect') > 0:
self.logwrite("PostgreSQL is not running",gui.LOG_WARN)
self._setstate(_STATE_STORE_,False)
elif e.__str__().find('authentication') > 0:
self.logwrite("Authentication string is invalid",gui.LOG_ERR)
else:
self.logwrite("Unspecified DB error occurred",gui.LOG_ERR)
self._conn.rollback()
self.logwrite("Not connected to database",gui.LOG_WARN)
finally:
if curs: curs.close()
else:
self.logwrite("PostgreSQL is not running",gui.LOG_WARN)
self.logwrite("Not connected to database",gui.LOG_WARN)
# nidus running?
if cmdline.nidusrunning(wraith.NIDUSPID):
self.logwrite("Nidus is running")
self._setstate(_STATE_NIDUS_)
else:
self.logwrite("Nidus is not running",gui.LOG_WARN)
if cmdline.dysktrunning(wraith.DYSKTPID):
self.logwrite("DySKT is running")
self._setstate(_STATE_DYSKT_)
else:
self.logwrite("DySKT is not running",gui.LOG_WARN)
# set initial state to initialized
self._setstate(_STATE_INIT_)
# adjust menu options accordingly
self._menuenable()
def _initialize(self):
""" initialize gui, determine initial state """
# configure panel & write initial message
# have to manually enter the desired size, as the menu does not expand
# the visibile portion automatically
self.tk.wm_geometry("300x1+0+0")
self.tk.resizable(0, 0)
self.logwrite("Wraith v%s" % wraith.__version__)
# read in conf file, exit on error
confMsg = self._readconf()
if confMsg:
self.logwrite("Configuration file is invalid. " + confMsg,
gui.LOG_ERR)
return
# determine if postgresql is running
if cmdline.runningprocess('postgres'):
self.logwrite('PostgreSQL is running', gui.LOG_NOTE)
self._bSQL = True
# update state
self._setstate(_STATE_STORE_)
curs = None
try:
# attempt to connect and set state accordingly
self._conn = psql.connect(host=self._conf['store']['host'],
dbname=self._conf['store']['db'],
user=self._conf['store']['user'],
password=self._conf['store']['pwd'])
# set to use UTC and enable CONN flag
curs = self._conn.cursor()
curs.execute("set time zone 'UTC';")
self._conn.commit()
self._setstate(_STATE_CONN_)
self.logwrite("Connected to database", gui.LOG_NOTE)
except psql.OperationalError as e:
if e.__str__().find('connect') > 0:
self.logwrite("PostgreSQL is not running", gui.LOG_WARN)
self._setstate(_STATE_STORE_, False)
elif e.__str__().find('authentication') > 0:
self.logwrite("Authentication string is invalid",
gui.LOG_ERR)
else:
self.logwrite("Unspecified DB error occurred", gui.LOG_ERR)
self._conn.rollback()
self.logwrite("Not connected to database", gui.LOG_WARN)
finally:
if curs: curs.close()
else:
self.logwrite("PostgreSQL is not running", gui.LOG_WARN)
self.logwrite("Not connected to database", gui.LOG_WARN)
# nidus running?
if cmdline.nidusrunning(wraith.NIDUSPID):
self.logwrite("Nidus is running")
self._setstate(_STATE_NIDUS_)
else:
self.logwrite("Nidus is not running", gui.LOG_WARN)
if cmdline.dysktrunning(wraith.DYSKTPID):
self.logwrite("DySKT is running")
self._setstate(_STATE_DYSKT_)
else:
self.logwrite("DySKT is not running", gui.LOG_WARN)
# set initial state to initialized
self._setstate(_STATE_INIT_)
# adjust menu options accordingly
self._menuenable()