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make work on linux

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This commit is contained in:
Andreas Wrede
2016-04-19 18:17:17 -04:00
parent 15d7e6f8b2 e12b524c0c
commit ce0f4260ed
2 changed files with 203 additions and 101 deletions
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hbc
+14 -4
View File
@@ -33,7 +33,7 @@ import syslog
PORT = 50003 PORT = 50003
INTERVAL = 10 INTERVAL = 10
PIDFILE = '/tmp/hbc.pid' PIDFILE = '/tmp/hbc.pid'
DBG = True DBG = False
sock = None sock = None
up = True up = True
@@ -54,13 +54,16 @@ def getsock(host):
try: try:
r=socket.getaddrinfo(host, 50001, 0, 0, socket.SOL_UDP) r=socket.getaddrinfo(host, 50001, 0, 0, socket.SOL_UDP)
except socket.gaierror: except socket.gaierror:
logm = '%s hbc died: \n%s' % ('getsock', traceback.format_exc())
if DBG: print logm
return None return None
if r[0][0] == 28: if r[0][0] in [10, 28, 30]:
af_type=socket.AF_INET6 af_type=socket.AF_INET6
elif r[0][0] == 2: elif r[0][0] == 2:
af_type=socket.AF_INET af_type=socket.AF_INET
else: else:
return None print "dont know this net type: %s" % r[0][0]
sys.exit(1)
if verbose: if verbose:
syslog.syslog("socktype: %s" % af_type) syslog.syslog("socktype: %s" % af_type)
sock=socket.socket(af_type, socket.SOCK_DGRAM) sock=socket.socket(af_type, socket.SOCK_DGRAM)
@@ -76,6 +79,7 @@ def socksend(msg, tohost):
if sock == None: if sock == None:
sock=getsock(tohost[0]) sock=getsock(tohost[0])
if DBG: print "socksend: sending msg=%s on socket=%s" % (msg, sock)
sock.sendto(msg, tohost) sock.sendto(msg, tohost)
if verbose: syslog.syslog("msg %s sent" % msg) if verbose: syslog.syslog("msg %s sent" % msg)
@@ -117,6 +121,8 @@ def process():
if verbose: syslog.syslog("sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port)) if verbose: syslog.syslog("sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port))
socksend(msg, (hb_host, hb_port)) socksend(msg, (hb_host, hb_port))
except: except:
logm = '%s hbc died: \n%s' % ('socksend', traceback.format_exc())
if DBG: print logm
pass pass
@@ -241,6 +247,7 @@ if not msgonly:
msgboot.append("interval=%s" % interval) msgboot.append("interval=%s" % interval)
if len(msgboot) > 0: if len(msgboot) > 0:
if DBG: print "on boot"
msgboot.append("name=%s" % iam) msgboot.append("name=%s" % iam)
msgboot.append("time=%s" % time.time()) msgboot.append("time=%s" % time.time())
msgboot.append("acks=0") msgboot.append("acks=0")
@@ -249,9 +256,11 @@ if len(msgboot) > 0:
fail=0 fail=0
for hb_host in hb_hosts: for hb_host in hb_hosts:
try: try:
if verbose: print "sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port) if DBG: print "sock.send('%s', (%s, %s))" % (msg, hb_host, hb_port)
socksend(msg, (hb_host, hb_port)) socksend(msg, (hb_host, hb_port))
except: except:
logm = '%s hbc died: \n%s' % ('socksend2', traceback.format_exc())
if DBG: print logm
fail=1 fail=1
if fail: if fail:
time.sleep(10) time.sleep(10)
@@ -293,6 +302,7 @@ if fdaemon:
working_directory='/tmp', working_directory='/tmp',
umask=0o002, umask=0o002,
pidfile=pidfile, pidfile=pidfile,
initgroups=False,
) )
context.signal_map = { context.signal_map = {
hbd
+186 -94
View File
@@ -2,7 +2,7 @@
# $Id: hbd,v 1.38 2013/07/14 02:25:05 andreas Exp $ # $Id: hbd,v 1.38 2013/07/14 02:25:05 andreas Exp $
# Wait for heartbeat messages and act on them (or their absence) # Wait for heartbeat messages and act on them (or their absence)
# #
VER = 1.62 VER = 2.00
import time import time
import os import os
@@ -12,6 +12,7 @@ import socket
import atexit import atexit
import select import select
import SocketServer import SocketServer
import BaseHTTPServer
import getopt import getopt
import signal import signal
import cPickle import cPickle
@@ -19,6 +20,8 @@ import smtplib
import traceback import traceback
import urllib import urllib
import httplib import httplib
import threading
import Queue
from subprocess import Popen, STDOUT, PIPE from subprocess import Popen, STDOUT, PIPE
@@ -26,8 +29,8 @@ from subprocess import Popen, STDOUT, PIPE
SEND_EMAIL=False SEND_EMAIL=False
SEND_PUSHOVER=True SEND_PUSHOVER=True
False = 0 DEBUG = 0
True = 1
LOGFILE = "/home/andreas/public_html/messages/andreas" LOGFILE = "/home/andreas/public_html/messages/andreas"
PICKFILE = "/var/tmp/hbd.pick" PICKFILE = "/var/tmp/hbd.pick"
AEMAIL = ["andreas@wrede.ca"] AEMAIL = ["andreas@wrede.ca"]
@@ -44,7 +47,7 @@ num = 0
PORT = 50003 PORT = 50003
TPORT = 50004 TPORT = 50004
THOST = "" THOST = ""
DEBUG = False
verbose = False verbose = False
INTERVAL = 10 INTERVAL = 10
@@ -60,13 +63,10 @@ def handler(signum, frame):
sig = signum sig = signum
if not running: if not running:
if verbose: if verbose:
print "NOT runing signal: %s running: %d" % (sig, running) sys.stderr.write("NOT runing signal: %s running: %d" % (sig, running))
return sys.exit(2)
# signal.signal(sig, handler)
if verbose: if verbose:
print "signal: %s running: %s frame: %s" % (sig, running, frame) sys.stderr.write("signal: %s running: %s frame: %s" % (sig, running, frame))
running = False
# sys.exit(0)
def shortname(name): def shortname(name):
@@ -78,6 +78,12 @@ class NullDevice:
def write(self, s): def write(self, s):
pass pass
class Addr:
def __init__(self, a4, a6):
self.a4 = a4
self.a6 = a6
class Host: class Host:
up = "up" up = "up"
@@ -136,11 +142,11 @@ class Host:
vs="" vs=""
else: else:
vs="-" vs="-"
r+= "<td>%s</td>" % vs r+= '<td align="right">%s</td>' % vs
return r return r
else: else:
return "<td>(%s)</td><td></td><td></td>" % (self.doesack) return "<td>(%s)</td><td></td><td></td>" % (self.doesack)
return "<td>N/A</td><td></td<td></td>>" return '<td align="right">N/A</td><td></td<td></td>>'
# set new state, return number of secs in previous state # set new state, return number of secs in previous state
def newstate(self, state, when=0): def newstate(self, state, when=0):
@@ -162,8 +168,7 @@ def email(s, msg):
body = "To: %s\nFrom: %s\nSubject: %s\nDate: %s\n\n%s" % (toaddrs[0], fromaddr, subj, date, msg) body = "To: %s\nFrom: %s\nSubject: %s\nDate: %s\n\n%s" % (toaddrs[0], fromaddr, subj, date, msg)
try: try:
server = smtplib.SMTP(SMTPSERVER) server = smtplib.SMTP(SMTPSERVER)
if DEBUG: if DEBUG > 0: server.set_debuglevel(1)
server.set_debuglevel(1)
server.sendmail(fromaddr, toaddrs, body) server.sendmail(fromaddr, toaddrs, body)
except smtplib.SMTPRecipientsRefused, errs: except smtplib.SMTPRecipientsRefused, errs:
log("cannot send email: %s\n" % (errs)) log("cannot send email: %s\n" % (errs))
@@ -202,7 +207,17 @@ def nsupdate(hostname, newip):
D['dnsttl'] = '5' D['dnsttl'] = '5'
D['newip'] = newip D['newip'] = newip
D['ts'] = time.strftime('%Y-%m-%d.%H:%M:%S', time.gmtime()) D['ts'] = time.strftime('%Y-%m-%d.%H:%M:%S', time.gmtime())
nsup = """update delete %(fqdn)s A if newip.find(":") > 0:
nsup = """update delete %(fqdn)s AAAA
update add %(fqdn)s %(dnsttl)s AAAA %(newip)s
update delete %(fqdn)s TXT
update add %(fqdn)s %(dnsttl)s TXT "Created: %(ts)s"
send
answer
""" % D
else:
nsup = """update delete %(fqdn)s A
update add %(fqdn)s %(dnsttl)s A %(newip)s update add %(fqdn)s %(dnsttl)s A %(newip)s
update delete %(fqdn)s TXT update delete %(fqdn)s TXT
update add %(fqdn)s %(dnsttl)s TXT "Created: %(ts)s" update add %(fqdn)s %(dnsttl)s TXT "Created: %(ts)s"
@@ -210,9 +225,10 @@ send
answer answer
""" % D """ % D
# log("DBG: nsup %s" % nsup)
if DEBUG > 0: log("DBG: nsup %s" % nsup)
cmd = ["/usr/local/bin/nsupdate", "-k", "/etc/dhcpc/K%(domain)s.+157+00000." % D, "-v"] cmd = ["/usr/local/bin/nsupdate", "-k", "/etc/dhcpc/K%(domain)s.+157+00000." % D, "-v"]
# log("DBG: cmd %s" % cmd) if DEBUG > 0: log("DBG: cmd %s" % cmd)
try: try:
p = Popen(cmd, shell=False, bufsize=1, stdin=PIPE, stdout=PIPE, stderr=STDOUT) p = Popen(cmd, shell=False, bufsize=1, stdin=PIPE, stdout=PIPE, stderr=STDOUT)
except OSError, e: except OSError, e:
@@ -261,9 +277,11 @@ def addhost(name, addr):
# #
def on_exit(): def on_exit():
if DEBUG: if DEBUG > 0: sys.stderr.write("on_exit\n")
sys.stderr.write("on_exit\n") try:
logf.close() logf.close()
except:
pass
print "exit" print "exit"
@@ -289,7 +307,7 @@ def checkoverdue():
def log(m, service="heartbeat"): def log(m, service="heartbeat"):
if DEBUG: print "Log: %s" % m if DEBUG > 0: print "Log: %s" % m
msg = time.strftime("%b %d %H:%M:%S", time.localtime(time.time()))+": "+m+"\n" msg = time.strftime("%b %d %H:%M:%S", time.localtime(time.time()))+": "+m+"\n"
msgs.append(msg) msgs.append(msg)
if logfmt == "msg": if logfmt == "msg":
@@ -301,6 +319,19 @@ def log(m, service="heartbeat"):
pickleit() pickleit()
def dnsupdatethread():
while True:
name, addr = dnsQ.get()
m = "%s changed address to %s" % (name, addr)
err = nsupdate(name, addr)
if err:
m += ", DNS failed: %s" % err
email("error: nsupdate failed", m)
else:
m += ", DNS updated."
dnsQ.task_done()
log(m)
# #
# #
def fromaddr(name, addr, boot, interval, acks): def fromaddr(name, addr, boot, interval, acks):
@@ -319,14 +350,10 @@ def fromaddr(name, addr, boot, interval, acks):
host.addr = addr host.addr = addr
htab[addr] = name htab[addr] = name
m = "%s changed address to %s" % (host.name, addr) m = "%s changed address to %s" % (host.name, addr)
if name in dyndnshosts: if name in dyndnshosts and not ":" in addr: # don't try and cat ptr to IPv6 addr
err = nsupdate(name, addr) dnsQ.put((name, addr))
if err: else:
m += ", DNS failed: %s" % err log(m)
email("error: nsupdate failed", m)
else:
m += ", DNS updated."
log(m)
if name in watchhosts: if name in watchhosts:
email("address change", m) email("address change", m)
pushover(m) pushover(m)
@@ -350,7 +377,9 @@ def fromaddr(name, addr, boot, interval, acks):
# #
def readsock(sock): def readsock(sock):
global htab global htab
if DEBUG > 3: sys.stderr.write("readsock recfrom start")
data, addr = sock.recvfrom(1024) data, addr = sock.recvfrom(1024)
if DEBUG > 2: sys.stderr.write("readsock = %s, %s\n" % (data,addr))
pairs = string.split(data, ';') pairs = string.split(data, ';')
boot = 0 boot = 0
shutdown = 0 shutdown = 0
@@ -434,19 +463,31 @@ def readsock(sock):
log("%s command initiated" % name) log("%s command initiated" % name)
try: try:
ss=sock.sendto(rmsg, addr) ss=sock.sendto(rmsg, addr)
if DEBUG: if DEBUG > 2: print "msg from %s,%s, sent %s bytes back" % (addr[0], addr[1], ss)
log("msg from %s,%s, sent %s bytes back" % (addr[0], addr[1], ss))
except: except:
pass pass
# #
# #
class HtmlServer(SocketServer.TCPServer):
#class HttpServer(BaseHTTPServer.HTTPServer):
class HttpServer(SocketServer.ThreadingMixIn, BaseHTTPServer.HTTPServer):
allow_reuse_address = True allow_reuse_address = True
def threaded():
pass
# #
# #
class HtmlHandler(SocketServer.BaseRequestHandler): class HttpHandler(BaseHTTPServer.BaseHTTPRequestHandler):
def do_HEAD(self):
self.send_response(200)
self.send_header("Last-Modified", time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(now)))
# self.send_header("Accept-Ranges","bytes")
# self.send_header("Connection","close")
self.send_header("Content-Type","text/html; charset = ISO-8859-1")
self.end_headers()
def buildhead(self, title="Heartbeat", refresh=None): def buildhead(self, title="Heartbeat", refresh=None):
@@ -458,12 +499,13 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
if refresh: if refresh:
res.append("<meta http-equiv = Refresh content = %d>\n" % refresh) res.append("<meta http-equiv = Refresh content = %d>\n" % refresh)
res.append("</head>") res.append("</head>")
res.append('<body BGCOLOR = "#FFFFFF" LINK = "#008000" VLINK = "#008000" BACKGROUND = "/~andreas/images/tile.marble.gif">') res.append('<body BGCOLOR = "#FFFFFF" LINK = "#008000" VLINK = "#008000">')
return res return res
def buildpage(self): def buildpage(self):
res=self.buildhead(refresh=60) res=self.buildhead(refresh=60)
res.append("<H2>Heartbeat status</h2><h4> %s (%s)</H4>" % (time.strftime("%H:%M:%S", time.localtime(now)), os.environ.get('TZ', 'CET-1CDT'))) res.append("<H2>Heartbeat status %s</h2><h4> %s (%s)</H4>" % (VER, time.strftime("%H:%M:%S", time.localtime(now)), os.environ.get('TZ', 'CET-1CDT')))
res.append("<table>") res.append("<table>")
res.append("<tr><th>Host</th><th>State</th><th>Hr</th><th>Dy</th><th>Wk</th><th>IP Addr</th><th>Last change</th></tr>\n") res.append("<tr><th>Host</th><th>State</th><th>Hr</th><th>Dy</th><th>Wk</th><th>IP Addr</th><th>Last change</th></tr>\n")
hosts_sorted = hosts.keys() hosts_sorted = hosts.keys()
@@ -487,36 +529,26 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
res.append('<h1>%s</h1>' % (cause)) res.append('<h1>%s</h1>' % (cause))
res.append('<p>%s</p>' % lcause) res.append('<p>%s</p>' % lcause)
res.append('<hr>') res.append('<hr>')
res.append('<address>hbd (Unix) Server at %s Port %s</address>' % (hbd_host, hbd_port)) res.append('<address>hbd (Unix) Server at %s:%s</address>' % (hbd_host, hbd_port))
res.append('</body></html>') res.append('</body></html>')
return res return res
def handle(self):
global sig, running
headers=[]
headers.append("Date: %s" % time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(now)))
headers.append("Server: hbd")
headers.append("Last-Modified: %s" % time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime(now)))
headers.append("Accept-Ranges: bytes")
headers.append("Connection: close")
headers.append("Content-Type: text/html; charset = ISO-8859-1")
uri = '/unknown' def do_GET(self):
f = self.request.makefile() global sig
while 1: xsig = 0
line = string.strip(f.readline()) self.do_HEAD()
if len(line) == 0: headers=[]
break
r = line.split() if DEBUG > 2: sys.stderr.write("handle\n")
if r[0] == "GET": uri = self.path
uri = r[1]
html = r[2]
upar=string.split(uri,"?") upar=string.split(uri,"?")
if len(upar) == 1: if len(upar) == 1:
uarg=[] uarg=[]
else: else:
uarg=string.split(upar[1],"&") uarg=string.split(upar[1],"&")
if DEBUG > 2: sys.stderr.write("handle = %s\n" % (uri))
code = 200 code = 200
cause = "OK" cause = "OK"
if uri == "/": if uri == "/":
@@ -573,8 +605,7 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
elif upar[0] == "/r": # restart elif upar[0] == "/r": # restart
res=self.buildhead() res=self.buildhead()
res.append("restart request") res.append("restart request")
sig=signal.SIGHUP xsig=signal.SIGHUP
running=False
log("restart request") log("restart request")
else: else:
@@ -583,24 +614,67 @@ class HtmlHandler(SocketServer.BaseRequestHandler):
res=self.builderror(code, cause, "The requested URL was not found on this server.") res=self.builderror(code, cause, "The requested URL was not found on this server.")
self.request.send("HTTP/1.0 %s %s\r\n" % (code, cause)) tosend = []
for h in headers: for h in headers:
self.request.send("%s\r\n" % h) tosend.append("%s\r" % h)
self.request.send("\r\n") tosend.append("\r")
# self.request.send("HTTP/1.0 %s %s\r\n" % (code, cause))
# for h in headers:
# self.request.send("%s\r\n" % h)
# self.request.send("\r\n")
try: tosend += res
self.request.send(string.join(res, "\n")) self.wfile.write(string.join(tosend, "\n"))
except:
pass
if xsig:
sig = xsig
def setrunning(new):
global running
if DEBUG > 0: sys.stderr.write("running is now = %s\n" % (new))
running = new
def closeup():
setrunning(False)
try:
sock.close()
except:
pass
try:
sock6.close()
except:
pass
if DEBUG > 0: sys.stderr.write("asking http server to stop\n")
try:
serv.shutdown()
if DEBUG > 0: sys.stderr.write("http server stopped\n")
except Exception as e:
if DEBUG > 0: sys.stderr.write("http server did NOT stop: %s\n" % str(e))
try:
serv.server_close()
except:
pass
log("restarting")
try:
logf.close()
except:
pass
# signal.signal(signal.SIGTERM, 0)
signal.signal(signal.SIGHUP, 0)
def restart():
print "execv %s %s" % (sys.argv[0], [sys.argv[0]]+cmdargs)
os.execv(sys.argv[0], [sys.argv[0]]+cmdargs)
print "should not be here"
def saveandrestart(): def saveandrestart():
sock.close() closeup()
sock6.close() restart()
# serv.shutdown() #N.B. dont shutdown() as we don't use serv_forever
serv.server_close()
log("restarting")
os.execv(sys.argv[0], [sys.argv[0]]+cmdargs)
def pickleit(): def pickleit():
@@ -643,8 +717,8 @@ for o, a in optlist:
verbose = True verbose = True
cmdargs += [o] cmdargs += [o]
elif o == '-x': elif o == '-x':
DEBUG = True DEBUG += 1
cmdargs += [o]
if helpflag: if helpflag:
print "hbc HeartBeatDaemon" print "hbc HeartBeatDaemon"
@@ -655,7 +729,7 @@ if helpflag:
print " -f run in foreground" print " -f run in foreground"
print " -h this help" print " -h this help"
print " -v verbose" print " -v verbose"
print " -x debug" print " -x increase debug lvl"
print print
print """ config file can contain print """ config file can contain
logfile = /var/log/heartbeat.log logfile = /var/log/heartbeat.log
@@ -688,7 +762,7 @@ try:
if verbose: if verbose:
print "notice: using config file %s" % configfile print "notice: using config file %s" % configfile
except: except:
print "warning: running without conifig file: %s" % configfile print "warning: running without config file: %s" % configfile
f = None f = None
if f: if f:
@@ -771,8 +845,12 @@ sock6.bind(("", hb_port))
ilist.append(sock6) ilist.append(sock6)
serv = HtmlServer((hbd_host, hbd_port), HtmlHandler) serv = HttpServer((hbd_host, hbd_port), HttpHandler)
ilist.append(serv.fileno()) servthread = threading.Thread(target=serv.serve_forever)
servthread.daemon = True
servthread.start()
#ilist.append(serv.fileno())
if not forground: if not forground:
pid = os.fork() pid = os.fork()
@@ -792,37 +870,49 @@ if not forground:
os.setsid() os.setsid()
os.umask(0) os.umask(0)
dnsQ = Queue.Queue()
dnsT = threading.Thread(target=dnsupdatethread)
dnsT.daemon = True
dnsT.start()
running = True running = True
sig = 0 sig = 0
signal.signal(signal.SIGTERM, handler) #signal.signal(signal.SIGTERM, handler)
signal.signal(signal.SIGHUP, handler) signal.signal(signal.SIGHUP, handler)
next = int(now)+15 # 15 seconds time to settle after (re-)start next = int(now)+15 # 15 seconds time to settle after (re-)start
sleep = next - now sleep = 1
while running: firstcheck = int(now) + 15
if DEBUG: while running:
sys.stderr.write("about to sleep = %s\n" % (sleep)) sr = None
if DEBUG > 2: sys.stderr.write("about to sleep = %s\n" % (sleep))
try: try:
sr = select.select(ilist, [], [], sleep) sr = select.select(ilist, [], [], sleep)
now = time.time() now = time.time()
except KeyboardInterrupt: except KeyboardInterrupt:
sys.exit(0) sys.stderr.write("Keyboard Interrupt!\n")
running = False
closeup()
continue
except select.error, value: except select.error, value:
if value[0] != 4: # interrupted system call if value[0] != 4: # interrupted system call
print select.error, value sys.stderr.write("select err %s %s" % (select.error, value))
#raise os.error, value #raise os.error, value
continue continue
continue continue
except: except Exception as e:
if DEBUG > 2: sys.stderr.write("select exception %s\n" % (str(e)))
sys.exit(1) sys.exit(1)
if DEBUG > 2: sys.stderr.write("woke from sleep = %s (%s)\n" % (str(sr), str(ilist)))
for fh in sr[0]: for fh in sr[0]:
if fh in [sock, sock6]: if fh in [sock, sock6]:
readsock(fh) readsock(fh)
elif fh == serv.fileno(): # elif fh == serv.fileno():
serv.handle_request() # serv.handle_request()
else: else:
print("what happend just now") sys.stderr.write("what happend just now?\n")
if DEBUG > 2: sys.stderr.write("done handling, running is %s, sig is %s\n" % (running, sig))
# check hour/day/week # check hour/day/week
for v in xrange(3): for v in xrange(3):
@@ -833,19 +923,21 @@ while running:
for h in hosts.keys(): for h in hosts.keys():
hosts[h].hdwcounts[v] = [hosts[h].doesack, hosts[h].upcount] hosts[h].hdwcounts[v] = [hosts[h].doesack, hosts[h].upcount]
if now >= next: if now >= next and now >= firstcheck:
next = now+1 next = now+1
checkoverdue() checkoverdue()
sleep = next-now sleep = next-now
if sleep < 0: if sleep < 0:
sys.stderr.write("sleep is negaitive! %s next = %s\n" % (sleep, next)) sys.stderr.write("sleep is negative! %s next = %s\n" % (sleep, next))
sleep = 0 sleep = 0
if DEBUG: if DEBUG > 2: sys.stderr.write("sleep = %s next = %s\n" % (sleep, next))
sys.stderr.write("sleep = %s next = %s\n" % (sleep, next))
if sig != 0:
setrunning(False)
if sig == signal.SIGHUP: if sig == signal.SIGHUP:
if DEBUG: if DEBUG > 0: sys.stderr.write("signal 1 saveandrestart\n")
sys.stderr.write("signal 1 exit\n")
saveandrestart() saveandrestart()