1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
#!/usr/bin/python
#
# Authors:
# Rob Crittenden <rcritten@redhat.com>
#
# Copyright (C) 2009 Red Hat
# see file 'COPYING' for use and warranty information
#
# 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; version 2 only
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""
Upgrade configuration files to a newer template.
"""
import sys
try:
from ipapython import ipautil
import krbV
import re
import os
import shutil
import fileinput
except ImportError:
print >> sys.stderr, """\
There was a problem importing one of the required Python modules. The
error was:
%s
""" % sys.exc_value
sys.exit(1)
def backup_file(filename, ext):
"""Make a backup of filename using ext as the extension. Do not overwrite
previous backups."""
if not os.path.isabs(filename):
raise ValueError("Absolute path required")
backupfile = filename + ".bak"
(reldir, file) = os.path.split(filename)
while os.path.exists(backupfile):
backupfile = backupfile + "." + str(ext)
shutil.copy2(filename, backupfile)
def update_conf(sub_dict, filename, template_filename):
template = ipautil.template_file(template_filename, sub_dict)
fd = open(filename, "w")
fd.write(template)
fd.close()
def find_hostname():
"""Find the hostname currently configured in ipa-rewrite.conf"""
filename="/etc/httpd/conf.d/ipa-rewrite.conf"
if not ipautil.file_exists(filename):
return None
pattern = "^[\s#]*.*https:\/\/([A-Za-z0-9\.\-]*)\/.*"
p = re.compile(pattern)
for line in fileinput.input(filename):
if p.search(line):
fileinput.close()
return p.search(line).group(1)
fileinput.close()
raise RuntimeError("Unable to determine the fully qualified hostname from %s" % filename)
def find_version(filename):
"""Find the version of a configuration file"""
if os.path.exists(filename):
pattern = "^[\s#]*VERSION\s+([0-9]+)\s+.*"
p = re.compile(pattern)
for line in fileinput.input(filename):
if p.search(line):
fileinput.close()
return p.search(line).group(1)
fileinput.close()
# no VERSION found
return 0
else:
return -1
def upgrade(sub_dict, filename, template):
old = int(find_version(filename))
new = int(find_version(template))
if old < 0:
print "%s not found." % filename
sys.exit(1)
if new < 0:
print "%s not found." % template
if old < new:
backup_file(filename, new)
update_conf(sub_dict, filename, template)
print "Upgraded %s to version %d" % (filename, new)
def check_certs():
"""Check ca.crt is in the right place, and try to fix if not"""
if not os.path.exists("/usr/share/ipa/html/ca.crt"):
ca_file = "/etc/httpd/alias/cacert.asc"
if os.path.exists(ca_file):
shutil.copyfile(ca_file, "/usr/share/ipa/html/ca.crt")
else:
print "Missing Certification Authority file."
print "You should place a copy of the CA certificate in /usr/share/ipa/html/ca.crt"
def main():
"""
Get some basics about the system. If getting those basics fail then
this is likely because the machine isn't currently an IPA server so
exit gracefully.
"""
try:
krbctx = krbV.default_context()
except krbV.Krb5Error, e:
# Unable to get default kerberos realm
sys.exit(0)
fqdn = find_hostname()
if fqdn is None:
# ipa-rewrite.conf doesn't exist, nothing to do
sys.exit(0)
# Ok, we are an IPA server, do the additional tests
check_certs()
sub_dict = { "REALM" : krbctx.default_realm, "FQDN": fqdn }
upgrade(sub_dict, "/etc/httpd/conf.d/ipa.conf", ipautil.SHARE_DIR + "ipa.conf")
upgrade(sub_dict, "/etc/httpd/conf.d/ipa-rewrite.conf", ipautil.SHARE_DIR + "ipa-rewrite.conf")
try:
if __name__ == "__main__":
sys.exit(main())
except SystemExit, e:
sys.exit(e)
except KeyboardInterrupt, e:
sys.exit(1)
|
