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
|
# ZCTEST 1.0
# $Id: mx.rb,v 1.25 2010/06/07 08:51:25 chabannf Exp $
#
# CONTACT : zonecheck@nic.fr
# AUTHOR : Stephane D'Alu <sdalu@nic.fr>
#
# CREATED : 2002/08/02 13:58:17
# REVISION : $Revision: 1.25 $
# DATE : $Date: 2010/06/07 08:51:25 $
#
# CONTRIBUTORS: (see also CREDITS file)
#
#
# LICENSE : GPL v3
# COPYRIGHT : AFNIC (c) 2003
#
# This file is part of ZoneCheck.
#
# ZoneCheck 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 3 of the License, or
# (at your option) any later version.
#
# ZoneCheck 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 ZoneCheck; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
require 'framework'
module CheckNetworkAddress
##
## Check domain MX record
##
class MX < Test
with_msgcat 'test/mx.%s'
#-- Checks --------------------------------------------------
# DESC: MX entries should exists
def chk_mx(ns, ip)
! mx(ip).empty?
end
# DESC: MX answers should be authoritative
def chk_mx_auth(ns, ip)
mx(ip, @domain.name) # request should be done twice
mx(ip, @domain.name, true)[0].aa # so we need to force the cache
end
# DESC: Ensure coherence between MX and ANY
def chk_mx_vs_any(ns, ip)
mx_from_any = any(ip, Dnsruby::RR::IN::MX)
return true if mx_from_any.empty? # MX not necessary in ANY
mx(ip).unsorted_eql?(mx_from_any)
end
# DESC: MX exchanger should have a valid hostname syntax
def chk_mx_sntx(ns, ip)
mx(ip).each { |m|
if ! is_valid_hostname?(m.exchange)
return false
end
}
true
end
# DESC: MX record should not point to CNAME alias
def chk_mx_cname(ns, ip)
mx(ip).each { |m|
if cname = is_cname?(m.exchange, ip)
return { 'mx' => m.exchange.to_s, 'cname' => cname.to_s }
end
}
true
end
# DESC: MX exchange should be resolvable
def chk_mx_ip(ns, ip)
mx(ip).each { |m| mx_name = m.exchange
return { 'mx' => mx_name.to_s } unless is_resolvable?(mx_name, ip,
@domain.name)
}
true
end
# DESC: check for absence of wildcard MX
def chk_mx_no_wildcard(ns, ip)
host = const('inexistant_hostname')
host_fq = Dnsruby::Name::create(host + "." + @domain.name.to_s)
begin
mx(ip, host_fq).empty?
rescue Dnsruby::NXDomain
return true
end
end
#-- Tests ---------------------------------------------------
def tst_mail_by_mx_or_a(ns, ip)
begin
if !mx(ip).empty? then 'MX'
elsif !addresses(@domain.name, ip).empty? then 'A'
else 'nodelivery'
end
rescue Dnsruby::ResolvError, Dnsruby::ResolvTimeout
return 'nodelivery'
end
end
end
end
|
