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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 | # | |
ac1cfefa MT |
9 | |
10 | use LWP::UserAgent; | |
11 | use File::Copy; | |
12 | use File::Temp qw/ tempfile tempdir /; | |
13 | use strict; | |
14 | ||
15 | # enable only the following on debugging purpose | |
16 | #use warnings; | |
17 | #use CGI::Carp 'fatalsToBrowser'; | |
18 | ||
986e08d9 | 19 | require '/var/ipfire/general-functions.pl'; |
ac1cfefa MT |
20 | require "${General::swroot}/lang.pl"; |
21 | require "${General::swroot}/header.pl"; | |
22 | ||
23 | my %snortsettings=(); | |
24 | my %checked=(); | |
5a3e0dca | 25 | my %selected=(); |
ac1cfefa MT |
26 | my %netsettings=(); |
27 | our $errormessage = ''; | |
28 | our $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set | |
29 | our $realmd5 = ''; | |
30 | our $results = ''; | |
31 | our $tempdir = ''; | |
32 | our $url=''; | |
33 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); | |
34 | ||
35 | &Header::showhttpheaders(); | |
36 | ||
37 | $snortsettings{'ENABLE_SNORT'} = 'off'; | |
38 | $snortsettings{'ENABLE_SNORT_GREEN'} = 'off'; | |
39 | $snortsettings{'ENABLE_SNORT_BLUE'} = 'off'; | |
40 | $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off'; | |
41 | $snortsettings{'ACTION'} = ''; | |
5a3e0dca | 42 | $snortsettings{'RULES'} = ''; |
ac1cfefa MT |
43 | $snortsettings{'OINKCODE'} = ''; |
44 | $snortsettings{'INSTALLDATE'} = ''; | |
45 | $snortsettings{'INSTALLMD5'} = ''; | |
46 | ||
47 | &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'}); | |
48 | ||
5a3e0dca MT |
49 | if ($snortsettings{'RULES'} eq 'subscripted') { |
50 | $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT_s.tar.gz"; | |
51 | } elsif ($snortsettings{'RULES'} eq 'registered') { | |
52 | $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT.tar.gz"; | |
53 | } elsif ($snortsettings{'RULES'} eq 'bleeding') { | |
54 | $url="http://www.bleedingsnort.com/bleeding.rules.tar.gz"; | |
ac1cfefa | 55 | } else { |
5a3e0dca | 56 | $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz"; |
ac1cfefa MT |
57 | } |
58 | ||
59 | if ($snortsettings{'ACTION'} eq $Lang::tr{'save'}) | |
60 | { | |
61 | $errormessage = $Lang::tr{'invalid input for oink code'} unless ( | |
62 | ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/) || | |
63 | ($snortsettings{'RULESTYPE'} eq 'nothing' ) ); | |
64 | ||
65 | &General::writehash("${General::swroot}/snort/settings", \%snortsettings); | |
66 | if ($snortsettings{'ENABLE_SNORT'} eq 'on') | |
67 | { | |
9833e7d8 | 68 | system ('/usr/bin/touch', "${General::swroot}/snort/enable"); |
ac1cfefa MT |
69 | } else { |
70 | unlink "${General::swroot}/snort/enable"; | |
71 | } | |
72 | if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on') | |
73 | { | |
9833e7d8 | 74 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_green"); |
ac1cfefa MT |
75 | } else { |
76 | unlink "${General::swroot}/snort/enable_green"; | |
77 | } | |
78 | if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on') | |
79 | { | |
9833e7d8 | 80 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue"); |
ac1cfefa MT |
81 | } else { |
82 | unlink "${General::swroot}/snort/enable_blue"; | |
83 | } | |
84 | if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on') | |
85 | { | |
9833e7d8 | 86 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange"); |
ac1cfefa MT |
87 | } else { |
88 | unlink "${General::swroot}/snort/enable_orange"; | |
89 | } | |
90 | ||
91 | system('/usr/local/bin/restartsnort','red','orange','blue','green'); | |
92 | } else { | |
93 | # INSTALLMD5 is not in the form, so not retrieved by getcgihash | |
94 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
95 | } | |
96 | ||
97 | if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) { | |
98 | $md5 = &getmd5; | |
99 | if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) { | |
100 | chomp($md5); | |
101 | my $filename = &downloadrulesfile(); | |
102 | if (defined $filename) { | |
103 | # Check MD5sum | |
104 | $realmd5 = `/usr/bin/md5sum $filename`; | |
105 | chomp ($realmd5); | |
106 | $realmd5 =~ s/^(\w+)\s.*$/$1/; | |
107 | if ($md5 ne $realmd5) { | |
108 | $errormessage = "$Lang::tr{'invalid md5sum'}"; | |
109 | } else { | |
110 | $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>"; | |
5a3e0dca | 111 | $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules/ 2>&1`; |
ac1cfefa MT |
112 | $results .= "</pre>"; |
113 | } | |
114 | unlink ($filename); | |
115 | } | |
116 | } | |
117 | } | |
118 | ||
119 | $checked{'ENABLE_SNORT'}{'off'} = ''; | |
120 | $checked{'ENABLE_SNORT'}{'on'} = ''; | |
121 | $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'"; | |
122 | $checked{'ENABLE_SNORT_GREEN'}{'off'} = ''; | |
123 | $checked{'ENABLE_SNORT_GREEN'}{'on'} = ''; | |
124 | $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'"; | |
125 | $checked{'ENABLE_SNORT_BLUE'}{'off'} = ''; | |
126 | $checked{'ENABLE_SNORT_BLUE'}{'on'} = ''; | |
127 | $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'"; | |
128 | $checked{'ENABLE_SNORT_ORANGE'}{'off'} = ''; | |
129 | $checked{'ENABLE_SNORT_ORANGE'}{'on'} = ''; | |
130 | $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'"; | |
5a3e0dca MT |
131 | $selected{'RULES'}{'nothing'} = ''; |
132 | $selected{'RULES'}{'bleeding'} = ''; | |
133 | $selected{'RULES'}{'community'} = ''; | |
134 | $selected{'RULES'}{'registered'} = ''; | |
135 | $selected{'RULES'}{'subscripted'} = ''; | |
136 | $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'"; | |
ac1cfefa MT |
137 | |
138 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
139 | ||
140 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
141 | ||
142 | if ($errormessage) { | |
143 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
144 | print "<class name='base'>$errormessage\n"; | |
145 | print " </class>\n"; | |
146 | &Header::closebox(); | |
147 | } | |
148 | ||
149 | &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'}); | |
150 | print <<END | |
151 | <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'> | |
152 | <tr> | |
153 | <td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} /> | |
154 | GREEN Snort</td> | |
155 | </tr> | |
156 | END | |
157 | ; | |
158 | if ($netsettings{'BLUE_DEV'} ne '') { | |
159 | print <<END | |
160 | <tr> | |
161 | <td class='base'><input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> | |
162 | BLUE Snort</td> | |
163 | </tr> | |
164 | END | |
165 | ; | |
166 | } | |
167 | if ($netsettings{'ORANGE_DEV'} ne '') { | |
168 | print <<END | |
169 | <tr> | |
170 | <td class='base'><input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> | |
171 | ORANGE Snort</td> | |
172 | </tr> | |
173 | END | |
174 | ; | |
175 | } | |
176 | print <<END | |
177 | <tr> | |
178 | <td class='base'><input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> | |
179 | RED Snort</td> | |
180 | </tr> | |
181 | <tr> | |
182 | <td><hr /></td> | |
183 | </tr> | |
184 | <tr> | |
185 | <td><b>$Lang::tr{'ids rules update'}</b></td> | |
186 | </tr> | |
187 | <tr> | |
5a3e0dca MT |
188 | <td><select name='RULES'> |
189 | <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option> | |
190 | <option value='bleeding' $selected{'RULES'}{'bleeding'} >$Lang::tr{'bleeding rules'}</option> | |
191 | <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option> | |
192 | <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option> | |
193 | <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option> | |
194 | </select> | |
195 | </td> | |
ac1cfefa MT |
196 | </tr> |
197 | <tr> | |
198 | <td><br /> | |
199 | $Lang::tr{'ids rules license'} <a href='http://www.snort.org/' target='_blank'>http://www.snort.org</a>.<br /> | |
200 | <br /> | |
201 | $Lang::tr{'ids rules license2'} <a href='http://www.snort.org/reg-bin/userprefs.cgi' target='_blank'>USER PREFERENCES</a>, $Lang::tr{'ids rules license3'}<br /> | |
202 | </td> | |
203 | </tr> | |
204 | <tr> | |
5a3e0dca | 205 | <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td> |
ac1cfefa MT |
206 | </tr> |
207 | <tr> | |
208 | <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' /> | |
209 | END | |
210 | ; | |
211 | ||
212 | if ($snortsettings{'INSTALLMD5'} eq $md5) { | |
213 | print " $Lang::tr{'rules already up to date'}</td>"; | |
214 | } else { | |
215 | if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} && $md5 eq $realmd5 ) { | |
216 | $snortsettings{'INSTALLMD5'} = $realmd5; | |
217 | $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`; | |
218 | &General::writehash("${General::swroot}/snort/settings", \%snortsettings); | |
219 | } | |
220 | print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>"; | |
221 | } | |
222 | print <<END | |
223 | </tr> | |
224 | </table> | |
225 | <hr /> | |
226 | <table width='100%'> | |
227 | <tr> | |
228 | <td width='55%'> </td> | |
229 | <td width='40%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td> | |
230 | <td width='5%'> | |
231 | <!-- space for future online help link --> | |
232 | </td> | |
233 | </tr> | |
234 | </table> | |
235 | </form> | |
236 | END | |
237 | ; | |
238 | ||
239 | if ($results ne '') { | |
240 | print "$results"; | |
241 | } | |
242 | ||
243 | &Header::closebox(); | |
244 | &Header::closebigbox(); | |
245 | &Header::closepage(); | |
246 | ||
247 | sub getmd5 { | |
248 | # Retrieve MD5 sum from $url.md5 file | |
249 | # | |
250 | my $md5buf = &geturl("$url.md5"); | |
251 | return undef unless $md5buf; | |
252 | ||
253 | if (0) { # 1 to debug | |
254 | my $filename=''; | |
255 | my $fh=''; | |
256 | ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.md5' ); | |
257 | binmode ($fh); | |
258 | syswrite ($fh, $md5buf->content); | |
259 | close($fh); | |
260 | } | |
261 | return $md5buf->content; | |
262 | } | |
263 | sub downloadrulesfile { | |
264 | my $return = &geturl($url); | |
265 | return undef unless $return; | |
266 | ||
267 | if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning | |
268 | $errormessage = $Lang::tr{'invalid loaded file'}; | |
269 | return undef; | |
270 | } | |
271 | ||
272 | my $filename=''; | |
273 | my $fh=''; | |
274 | ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension | |
275 | binmode ($fh); | |
276 | syswrite ($fh, $return->content); | |
277 | close($fh); | |
278 | return $filename; | |
279 | } | |
280 | ||
281 | sub geturl ($) { | |
282 | my $url=$_[0]; | |
283 | ||
284 | unless (-e "${General::swroot}/red/active") { | |
285 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
286 | return undef; | |
287 | } | |
288 | ||
289 | my $downloader = LWP::UserAgent->new; | |
290 | $downloader->timeout(5); | |
291 | ||
292 | my %proxysettings=(); | |
293 | &General::readhash("${General::swroot}/proxy/settings", \%proxysettings); | |
294 | ||
295 | if ($_=$proxysettings{'UPSTREAM_PROXY'}) { | |
296 | my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/); | |
297 | if ($proxysettings{'UPSTREAM_USER'}) { | |
298 | $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/"); | |
299 | } else { | |
300 | $downloader->proxy("http","http://$peer:$peerport/"); | |
301 | } | |
302 | } | |
303 | ||
304 | my $return = $downloader->get($url,'Cache-Control','no-cache'); | |
305 | ||
306 | if ($return->code == 403) { | |
307 | $errormessage = $Lang::tr{'access refused with this oinkcode'}; | |
308 | return undef; | |
309 | } elsif (!$return->is_success()) { | |
310 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
311 | return undef; | |
312 | } | |
313 | ||
314 | return $return; | |
315 | ||
316 | } |