"""
-Copyright 2007, Red Hat, Inc
+Copyright 2007-2008, Red Hat, Inc
see AUTHORS
This software may be freely redistributed under the terms of the GNU
import traceback
import xmlrpclib
import socket
+import time
+import glob
+import codes
+import certs
+from config import read_config
+from commonconfig import MinionConfig
+import logger
+import sub_process
+
+# FIXME: module needs better pydoc
+
+# FIXME: can remove this constant?
REMOTE_ERROR = "REMOTE_ERROR"
+# The standard I/O file descriptors are redirected to /dev/null by default.
+if (hasattr(os, "devnull")):
+ REDIRECT_TO = os.devnull
+else:
+ REDIRECT_TO = "/dev/null"
+
def trace_me():
x = traceback.extract_stack()
bar = string.join(traceback.format_list(x))
Writes the new PID to the provided file name if not None.
"""
- print pidfile
pid = os.fork()
if pid > 0:
sys.exit(0)
+ os.chdir("/")
os.setsid()
- os.umask(0)
+ os.umask(077)
pid = os.fork()
+ os.close(0)
+ os.close(1)
+ os.close(2)
+
+ # based on http://code.activestate.com/recipes/278731/
+ os.open(REDIRECT_TO, os.O_RDWR) # standard input (0)
+
+ os.dup2(0, 1) # standard output (1)
+ os.dup2(0, 2) # standard error (2)
+
+
+
if pid > 0:
if pidfile is not None:
open(pidfile, "w").write(str(pid))
sys.exit(0)
+
def nice_exception(etype, evalue, etb):
etype = str(etype)
- lefti = etype.index("'") + 1
- righti = etype.rindex("'")
- nicetype = etype[lefti:righti]
+ try:
+ lefti = etype.index("'") + 1
+ righti = etype.rindex("'")
+ nicetype = etype[lefti:righti]
+ except:
+ nicetype = etype
nicestack = string.join(traceback.format_list(traceback.extract_tb(etb)))
- return [ REMOTE_ERROR, nicetype, str(evalue), nicestack ]
-
-def get_hostname():
- fqdn = socket.getfqdn()
- host = socket.gethostname()
- if fqdn.find(host) != -1:
- return fqdn
- else:
- return host
-
+ return [ REMOTE_ERROR, nicetype, str(evalue), nicestack ]
def is_error(result):
+ # FIXME: I believe we can remove this function
if type(result) != list:
return False
if len(result) == 0:
return True
return False
+def get_hostname(talk_to_certmaster=True):
+ """
+ "localhost" is a lame hostname to use for a key, so try to get
+ a more meaningful hostname. We do this by connecting to the certmaster
+ and seeing what interface/ip it uses to make that connection, and looking
+ up the hostname for that.
+ """
+ # FIXME: this code ignores http proxies (which granted, we don't
+ # support elsewhere either.
+ hostname = None
+ hostname = socket.gethostname()
+ # print "DEBUG: HOSTNAME TRY1: %s" % hostname
+ try:
+ ip = socket.gethostbyname(hostname)
+ except:
+ return hostname
+ if ip != "127.0.0.1":
+ return hostname
+
+
+# FIXME: move to requestor module and also create a verbose mode
+# prints to the screen for usage by /usr/bin/certmaster-request
+
+def create_minion_keys(hostname=None, ca_name=''):
+ log = logger.Logger().logger
+
+ # FIXME: paths should not be hard coded here, move to settings universally
+ config_file = '/etc/certmaster/minion.conf'
+ config = read_config(config_file, MinionConfig)
+
+ try:
+ certauth=config.ca[ca_name]
+ except:
+ raise codes.CMException("Unknown cert authority: %s" % ca_name)
+
+ cert_dir = certauth.cert_dir
+
+ master_uri = 'http://%s:%s/' % (config.certmaster, config.certmaster_port)
+
+ hn = hostname
+ if hn is None:
+ hn = get_hostname()
+
+ if hn is None:
+ raise codes.CMException("Could not determine a hostname other than localhost")
+ else:
+ # use lowercase letters for hostnames
+ hn = hn.lower()
+
+ key_file = '%s/%s.pem' % (cert_dir, hn)
+ csr_file = '%s/%s.csr' % (cert_dir, hn)
+ cert_file = '%s/%s.cert' % (cert_dir, hn)
+ ca_cert_file = '%s/ca.cert' % cert_dir
+
+ if os.path.exists(cert_file) and os.path.exists(ca_cert_file):
+ # print "DEBUG: err, no cert_file"
+ return
+
+ keypair = None
+ try:
+ if not os.path.exists(cert_dir):
+ os.makedirs(cert_dir)
+ if not os.path.exists(key_file):
+ keypair = certs.make_keypair(dest=key_file)
+ if not os.path.exists(csr_file):
+ if not keypair:
+ keypair = certs.retrieve_key_from_file(key_file)
+ csr = certs.make_csr(keypair, dest=csr_file, hostname=hn)
+ except Exception, e:
+ traceback.print_exc()
+ raise codes.CMException, "Could not create local keypair or csr for session"
+
+ result = False
+
+ while not result:
+ try:
+ # print "DEBUG: submitting CSR to certmaster: %s" % master_uri
+ log.debug("submitting CSR: %s to certmaster %s" % (csr_file, master_uri))
+ result, cert_string, ca_cert_string = submit_csr_to_master(csr_file, master_uri, ca_name)
+ except socket.error, e:
+ log.warning("Could not locate certmaster at %s" % master_uri)
+
+ # logging here would be nice
+ if not result:
+ # print "DEBUG: no response from certmaster, sleeping 10 seconds"
+ log.warning("no response from certmaster %s, sleeping 10 seconds" % master_uri)
+ time.sleep(10)
+
+
+ if result:
+ # print "DEBUG: recieved certificate from certmaster"
+ log.debug("received certificate from certmaster %s, storing to %s" % (master_uri, cert_file))
+ if not keypair:
+ keypair = certs.retrieve_key_from_file(key_file)
+ valid = certs.check_cert_key_match(cert_string, keypair)
+ if not valid:
+ log.info("certificate does not match key (run certmaster-ca --clean first?)")
+ sys.stderr.write("certificate does not match key (run certmaster-ca --clean first?)\n")
+ return
+ cert_fd = os.open(cert_file, os.O_RDWR|os.O_CREAT, 0644)
+ os.write(cert_fd, cert_string)
+ os.close(cert_fd)
+
+ ca_cert_fd = os.open(ca_cert_file, os.O_RDWR|os.O_CREAT, 0644)
+ os.write(ca_cert_fd, ca_cert_string)
+ os.close(ca_cert_fd)
+
+def run_triggers(ref, globber):
+ """
+ Runs all the trigger scripts in a given directory.
+ ref can be a certmaster object, if not None, the name will be passed
+ to the script. If ref is None, the script will be called with
+ no argumenets. Globber is a wildcard expression indicating which
+ triggers to run. Example: "/var/lib/certmaster/triggers/blah/*"
+ """
+
+ log = logger.Logger().logger
+ triggers = glob.glob(globber)
+ triggers.sort()
+ for file in triggers:
+ log.debug("Executing trigger: %s" % file)
+ try:
+ if file.find(".rpm") != -1:
+ # skip .rpmnew files that may have been installed
+ # in the triggers directory
+ continue
+ if ref:
+ rc = sub_process.call([file, ref], shell=False)
+ else:
+ rc = sub_process.call([file], shell=False)
+ except:
+ log.warning("Warning: failed to execute trigger: %s" % file)
+ continue
+
+ if rc != 0:
+ raise codes.CMException, "certmaster trigger failed: %(file)s returns %(code)d" % { "file" : file, "code" : rc }
+
+
+def submit_csr_to_master(csr_file, master_uri, ca_name=''):
+ """"
+ gets us our cert back from the certmaster.wait_for_cert() method
+ takes csr_file as path location and master_uri
+ returns Bool, str(cert), str(ca_cert)
+ """
+
+ fo = open(csr_file)
+ csr = fo.read()
+ s = xmlrpclib.ServerProxy(master_uri)
-
+ # print "DEBUG: waiting for cert"
+ return s.wait_for_cert(csr,ca_name)
projects / certmaster.git / blobdiff