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ac1cfefa MT |
1 | #!/usr/bin/perl |
2 | # | |
3 | # SmoothWall CGIs | |
4 | # | |
5 | # This code is distributed under the terms of the GPL | |
6 | # | |
7 | # (c) The SmoothWall Team | |
8 | # | |
9 | # $Id: ids.cgi,v 1.8.2.18 2005/07/27 21:35:22 franck78 Exp $ | |
10 | # | |
11 | ||
12 | use LWP::UserAgent; | |
13 | use File::Copy; | |
14 | use File::Temp qw/ tempfile tempdir /; | |
15 | use strict; | |
16 | ||
17 | # enable only the following on debugging purpose | |
18 | #use warnings; | |
19 | #use CGI::Carp 'fatalsToBrowser'; | |
20 | ||
21 | require 'CONFIG_ROOT/general-functions.pl'; | |
22 | require "${General::swroot}/lang.pl"; | |
23 | require "${General::swroot}/header.pl"; | |
24 | ||
25 | my %snortsettings=(); | |
26 | my %checked=(); | |
27 | my %netsettings=(); | |
28 | our $errormessage = ''; | |
29 | our $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set | |
30 | our $realmd5 = ''; | |
31 | our $results = ''; | |
32 | our $tempdir = ''; | |
33 | our $url=''; | |
34 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); | |
35 | ||
36 | &Header::showhttpheaders(); | |
37 | ||
38 | $snortsettings{'ENABLE_SNORT'} = 'off'; | |
39 | $snortsettings{'ENABLE_SNORT_GREEN'} = 'off'; | |
40 | $snortsettings{'ENABLE_SNORT_BLUE'} = 'off'; | |
41 | $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off'; | |
42 | $snortsettings{'ACTION'} = ''; | |
43 | $snortsettings{'RULESTYPE'} = ''; | |
44 | $snortsettings{'OINKCODE'} = ''; | |
45 | $snortsettings{'INSTALLDATE'} = ''; | |
46 | $snortsettings{'INSTALLMD5'} = ''; | |
47 | ||
48 | &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'}); | |
49 | ||
50 | if ($snortsettings{'RULESTYPE'} eq 'subscripted') { | |
51 | $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.3_s.tar.gz"; | |
52 | } else { | |
53 | $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.3.tar.gz"; | |
54 | } | |
55 | ||
56 | if ($snortsettings{'ACTION'} eq $Lang::tr{'save'}) | |
57 | { | |
58 | $errormessage = $Lang::tr{'invalid input for oink code'} unless ( | |
59 | ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/) || | |
60 | ($snortsettings{'RULESTYPE'} eq 'nothing' ) ); | |
61 | ||
62 | &General::writehash("${General::swroot}/snort/settings", \%snortsettings); | |
63 | if ($snortsettings{'ENABLE_SNORT'} eq 'on') | |
64 | { | |
65 | system ('/bin/touch', "${General::swroot}/snort/enable"); | |
66 | } else { | |
67 | unlink "${General::swroot}/snort/enable"; | |
68 | } | |
69 | if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on') | |
70 | { | |
71 | system ('/bin/touch', "${General::swroot}/snort/enable_green"); | |
72 | } else { | |
73 | unlink "${General::swroot}/snort/enable_green"; | |
74 | } | |
75 | if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on') | |
76 | { | |
77 | system ('/bin/touch', "${General::swroot}/snort/enable_blue"); | |
78 | } else { | |
79 | unlink "${General::swroot}/snort/enable_blue"; | |
80 | } | |
81 | if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on') | |
82 | { | |
83 | system ('/bin/touch', "${General::swroot}/snort/enable_orange"); | |
84 | } else { | |
85 | unlink "${General::swroot}/snort/enable_orange"; | |
86 | } | |
87 | ||
88 | system('/usr/local/bin/restartsnort','red','orange','blue','green'); | |
89 | } else { | |
90 | # INSTALLMD5 is not in the form, so not retrieved by getcgihash | |
91 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
92 | } | |
93 | ||
94 | if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) { | |
95 | $md5 = &getmd5; | |
96 | if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) { | |
97 | chomp($md5); | |
98 | my $filename = &downloadrulesfile(); | |
99 | if (defined $filename) { | |
100 | # Check MD5sum | |
101 | $realmd5 = `/usr/bin/md5sum $filename`; | |
102 | chomp ($realmd5); | |
103 | $realmd5 =~ s/^(\w+)\s.*$/$1/; | |
104 | if ($md5 ne $realmd5) { | |
105 | $errormessage = "$Lang::tr{'invalid md5sum'}"; | |
106 | } else { | |
107 | $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>"; | |
78331e30 | 108 | $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort 2>&1`; |
ac1cfefa MT |
109 | $results .= "</pre>"; |
110 | } | |
111 | unlink ($filename); | |
112 | } | |
113 | } | |
114 | } | |
115 | ||
116 | $checked{'ENABLE_SNORT'}{'off'} = ''; | |
117 | $checked{'ENABLE_SNORT'}{'on'} = ''; | |
118 | $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'"; | |
119 | $checked{'ENABLE_SNORT_GREEN'}{'off'} = ''; | |
120 | $checked{'ENABLE_SNORT_GREEN'}{'on'} = ''; | |
121 | $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'"; | |
122 | $checked{'ENABLE_SNORT_BLUE'}{'off'} = ''; | |
123 | $checked{'ENABLE_SNORT_BLUE'}{'on'} = ''; | |
124 | $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'"; | |
125 | $checked{'ENABLE_SNORT_ORANGE'}{'off'} = ''; | |
126 | $checked{'ENABLE_SNORT_ORANGE'}{'on'} = ''; | |
127 | $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'"; | |
128 | $checked{'RULESTYPE'}{'nothing'} = ''; | |
129 | $checked{'RULESTYPE'}{'registered'} = ''; | |
130 | $checked{'RULESTYPE'}{'subscripted'} = ''; | |
131 | $checked{'RULESTYPE'}{$snortsettings{'RULESTYPE'}} = "checked='checked'"; | |
132 | ||
133 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
134 | ||
135 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
136 | ||
137 | if ($errormessage) { | |
138 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
139 | print "<class name='base'>$errormessage\n"; | |
140 | print " </class>\n"; | |
141 | &Header::closebox(); | |
142 | } | |
143 | ||
144 | &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'}); | |
145 | print <<END | |
146 | <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'> | |
147 | <tr> | |
148 | <td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} /> | |
149 | GREEN Snort</td> | |
150 | </tr> | |
151 | END | |
152 | ; | |
153 | if ($netsettings{'BLUE_DEV'} ne '') { | |
154 | print <<END | |
155 | <tr> | |
156 | <td class='base'><input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> | |
157 | BLUE Snort</td> | |
158 | </tr> | |
159 | END | |
160 | ; | |
161 | } | |
162 | if ($netsettings{'ORANGE_DEV'} ne '') { | |
163 | print <<END | |
164 | <tr> | |
165 | <td class='base'><input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> | |
166 | ORANGE Snort</td> | |
167 | </tr> | |
168 | END | |
169 | ; | |
170 | } | |
171 | print <<END | |
172 | <tr> | |
173 | <td class='base'><input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> | |
174 | RED Snort</td> | |
175 | </tr> | |
176 | <tr> | |
177 | <td><hr /></td> | |
178 | </tr> | |
179 | <tr> | |
180 | <td><b>$Lang::tr{'ids rules update'}</b></td> | |
181 | </tr> | |
182 | <tr> | |
183 | <td><input type='radio' name='RULESTYPE' value='nothing' $checked{'RULESTYPE'}{'nothing'} /> | |
184 | $Lang::tr{'no'}</td> | |
185 | </tr> | |
186 | <tr> | |
187 | <td><input type='radio' name='RULESTYPE' value='registered' $checked{'RULESTYPE'}{'registered'} /> | |
188 | $Lang::tr{'registered user rules'}</td> | |
189 | </tr> | |
190 | <tr> | |
191 | <td><input type='radio' name='RULESTYPE' value='subscripted' $checked{'RULESTYPE'}{'subscripted'} /> | |
192 | $Lang::tr{'subscripted user rules'}</td> | |
193 | </tr> | |
194 | <tr> | |
195 | <td><br /> | |
196 | $Lang::tr{'ids rules license'} <a href='http://www.snort.org/' target='_blank'>http://www.snort.org</a>.<br /> | |
197 | <br /> | |
198 | $Lang::tr{'ids rules license2'} <a href='http://www.snort.org/reg-bin/userprefs.cgi' target='_blank'>USER PREFERENCES</a>, $Lang::tr{'ids rules license3'}<br /> | |
199 | </td> | |
200 | </tr> | |
201 | <tr> | |
202 | <td nowrap='nowrap'>Oink Code: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td> | |
203 | </tr> | |
204 | <tr> | |
205 | <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' /> | |
206 | END | |
207 | ; | |
208 | ||
209 | if ($snortsettings{'INSTALLMD5'} eq $md5) { | |
210 | print " $Lang::tr{'rules already up to date'}</td>"; | |
211 | } else { | |
212 | if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} && $md5 eq $realmd5 ) { | |
213 | $snortsettings{'INSTALLMD5'} = $realmd5; | |
214 | $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`; | |
215 | &General::writehash("${General::swroot}/snort/settings", \%snortsettings); | |
216 | } | |
217 | print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>"; | |
218 | } | |
219 | print <<END | |
220 | </tr> | |
221 | </table> | |
222 | <hr /> | |
223 | <table width='100%'> | |
224 | <tr> | |
225 | <td width='55%'> </td> | |
226 | <td width='40%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td> | |
227 | <td width='5%'> | |
228 | <!-- space for future online help link --> | |
229 | </td> | |
230 | </tr> | |
231 | </table> | |
232 | </form> | |
233 | END | |
234 | ; | |
235 | ||
236 | if ($results ne '') { | |
237 | print "$results"; | |
238 | } | |
239 | ||
240 | &Header::closebox(); | |
241 | &Header::closebigbox(); | |
242 | &Header::closepage(); | |
243 | ||
244 | sub getmd5 { | |
245 | # Retrieve MD5 sum from $url.md5 file | |
246 | # | |
247 | my $md5buf = &geturl("$url.md5"); | |
248 | return undef unless $md5buf; | |
249 | ||
250 | if (0) { # 1 to debug | |
251 | my $filename=''; | |
252 | my $fh=''; | |
253 | ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.md5' ); | |
254 | binmode ($fh); | |
255 | syswrite ($fh, $md5buf->content); | |
256 | close($fh); | |
257 | } | |
258 | return $md5buf->content; | |
259 | } | |
260 | sub downloadrulesfile { | |
261 | my $return = &geturl($url); | |
262 | return undef unless $return; | |
263 | ||
264 | if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning | |
265 | $errormessage = $Lang::tr{'invalid loaded file'}; | |
266 | return undef; | |
267 | } | |
268 | ||
269 | my $filename=''; | |
270 | my $fh=''; | |
271 | ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension | |
272 | binmode ($fh); | |
273 | syswrite ($fh, $return->content); | |
274 | close($fh); | |
275 | return $filename; | |
276 | } | |
277 | ||
278 | sub geturl ($) { | |
279 | my $url=$_[0]; | |
280 | ||
281 | unless (-e "${General::swroot}/red/active") { | |
282 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
283 | return undef; | |
284 | } | |
285 | ||
286 | my $downloader = LWP::UserAgent->new; | |
287 | $downloader->timeout(5); | |
288 | ||
289 | my %proxysettings=(); | |
290 | &General::readhash("${General::swroot}/proxy/settings", \%proxysettings); | |
291 | ||
292 | if ($_=$proxysettings{'UPSTREAM_PROXY'}) { | |
293 | my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/); | |
294 | if ($proxysettings{'UPSTREAM_USER'}) { | |
295 | $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/"); | |
296 | } else { | |
297 | $downloader->proxy("http","http://$peer:$peerport/"); | |
298 | } | |
299 | } | |
300 | ||
301 | my $return = $downloader->get($url,'Cache-Control','no-cache'); | |
302 | ||
303 | if ($return->code == 403) { | |
304 | $errormessage = $Lang::tr{'access refused with this oinkcode'}; | |
305 | return undef; | |
306 | } elsif (!$return->is_success()) { | |
307 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
308 | return undef; | |
309 | } | |
310 | ||
311 | return $return; | |
312 | ||
313 | } |