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"""
cobbler daemon for logging remote syslog traffic during kickstart
Copyright 2007, Red Hat, Inc
Michael DeHaan <mdehaan@redhat.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
"""
import sys
import socket
import time
import os
import SimpleXMLRPCServer
import glob
from utils import _
import xmlrpclib
import binascii
from server import xmlrpclib2
import api as cobbler_api
import yaml # Howell Clark version
import utils
import sub_process
import remote
def main():
core(logger=None)
def core(logger=None):
bootapi = cobbler_api.BootAPI()
settings = bootapi.settings()
syslog_port = settings.syslog_port
xmlrpc_port = settings.xmlrpc_port
xmlrpc_port2 = settings.xmlrpc_rw_port
pid = os.fork()
regen_ss_file()
if pid == 0:
# part one: XMLRPC -- which may be just read-only or both read-only and read-write
do_xmlrpc_tasks(bootapi, settings, xmlrpc_port, xmlrpc_port2, logger)
else:
# part two: syslog, or syslog+avahi if avahi is installed
do_other_tasks(bootapi, settings, syslog_port, logger)
os.waitpid(pid, 0)
def regen_ss_file():
# this is only used for Kerberos auth at the moment.
# it identifies XMLRPC requests from Apache that have already
# been cleared by Kerberos.
fd = open("/dev/urandom")
data = fd.read(512)
fd.close()
fd = open("/var/lib/cobbler/web.ss","w+")
fd.write(binascii.hexlify(data))
fd.close()
os.system("chmod 700 /var/lib/cobbler/web.ss")
os.system("chown apache /var/lib/cobbler/web.ss")
return 1
def do_xmlrpc_tasks(bootapi, settings, xmlrpc_port, xmlrpc_port2, logger):
if str(settings.xmlrpc_rw_enabled) != "0":
pid2 = os.fork()
if pid2 == 0:
do_mandatory_xmlrpc_tasks(bootapi, settings, xmlrpc_port, logger)
else:
do_xmlrpc_rw(bootapi, settings, xmlrpc_port2, logger)
os.waitpid(pid2, 0)
else:
logger.debug("xmlrpc_rw is disabled in the settings file")
do_mandatory_xmlrpc_tasks(bootapi, settings, xmlrpc_port, logger)
def do_mandatory_xmlrpc_tasks(bootapi,settings,xmlrpc_port,logger):
#pid3 = os.fork()
#if pid3 == 0:
# do_xmlrpc(bootapi, settings, xmlrpc_port, logger)
#else:
# # NOTE: this shouldn't be enabled unless we decide
# # to use it for something.
# # do_xmlrpc_unix(bootapi, settings, logger)
# pass
do_xmlrpc(bootapi, settings, xmlrpc_port, logger)
def do_other_tasks(bootapi, settings, syslog_port, logger):
# FUTURE: this should also start the Web UI, if the dependencies
# are available.
if os.path.exists("/usr/bin/avahi-publish-service"):
pid2 = os.fork()
if pid2 == 0:
do_syslog(bootapi, settings, syslog_port, logger)
else:
do_avahi(bootapi, settings, logger)
os.waitpid(pid2, 0)
else:
do_syslog(bootapi, settings, syslog_port, logger)
def log(logger,msg):
if logger is not None:
logger.info(msg)
else:
print >>sys.stderr, msg
def do_avahi(bootapi, settings, logger):
# publish via zeroconf. This command will not terminate
log(logger, "publishing avahi service")
cmd = [ "/usr/bin/avahi-publish-service",
"cobblerd",
"_http._tcp",
"%s" % settings.xmlrpc_port ]
proc = sub_process.Popen(cmd, shell=False, stderr=sub_process.PIPE, stdout=sub_process.PIPE, close_fds=True)
proc.communicate()[0]
log(logger, "avahi service terminated")
def do_xmlrpc(bootapi, settings, port, logger):
# This is the simple XMLRPC API we provide to koan and other
# apps that do not need to manage Cobbler's config
xinterface = remote.ProxiedXMLRPCInterface(bootapi,logger,remote.CobblerXMLRPCInterface,False)
server = remote.CobblerXMLRPCServer(('', port))
server.logRequests = 0 # don't print stuff
log(logger, "XMLRPC running on %s" % port)
server.register_instance(xinterface)
while True:
try:
server.serve_forever()
except IOError:
# interrupted? try to serve again
time.sleep(0.5)
def do_xmlrpc_rw(bootapi,settings,port,logger):
xinterface = remote.ProxiedXMLRPCInterface(bootapi,logger,remote.CobblerReadWriteXMLRPCInterface,True)
server = remote.CobblerReadWriteXMLRPCServer(('127.0.0.1', port))
server.logRequests = 0 # don't print stuff
logger.debug("XMLRPC (read-write variant) running on %s" % port)
server.register_instance(xinterface)
while True:
try:
server.serve_forever()
except IOError:
# interrupted? try to serve again
time.sleep(0.5)
def do_xmlrpc_unix(bootapi,settings,logger):
xinterface = remote.ProxiedXMLRPCInterface(bootapi,logger,remote.CobblerReadWriteXMLRPCInterface,True)
SOCKT = "/var/lib/cobbler/sock"
server = xmlrpclib2.UnixXMLRPCServer(SOCKT)
server.logRequests = 0 # don't print stuff
logger.debug("XMLRPC (socket variant) available on %s" % SOCKT)
server.register_instance(xinterface)
while True:
try:
server.serve_forever()
except IOError:
# interrupted? try to serve again
time.sleep(0.5)
def do_syslog(bootapi, settings, port, logger):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind(("0.0.0.0", port))
log(logger, "syslog running on %s" % port)
buf = 1024
while 1:
data, addr = s.recvfrom(buf)
(ip, port) = addr
system = bootapi.systems().find(ip_address = ip)
if not system:
usename = ip
else:
usename = system.name
if not data:
break
else:
logfile = open("/var/log/cobbler/syslog/%s" % usename, "a+")
t = time.localtime()
# write numeric time
seconds = str(time.mktime(t))
logfile.write(seconds)
logfile.write("\t")
# write string time
timestr = str(time.asctime(t))
logfile.write(timestr)
logfile.write("\t")
# write the IP address of the client
logfile.write(ip)
logfile.write("\t")
# write the data
logfile.write(data)
logfile.write("\n")
logfile.close()
if __name__ == "__main__":
#main()
#bootapi = cobbler_api.BootAPI()
#settings = bootapi.settings()
#syslog_port = settings.syslog_port
#xmlrpc_port = settings.xmlrpc_port
#xmlrpc_port2 = settings.xmlrpc_rw_port
#logger = bootapi.logger_remote
#do_xmlrpc_unix(bootapi, settings, logger)
regen_ss_file()
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