Replaced snort gpl community rules by emergingthreats.net rules.
[people/pmueller/ipfire-2.x.git] / html / cgi-bin / ids.cgi
1 #!/usr/bin/perl
2 ###############################################################################
3 #                                                                             #
4 # IPFire.org - A linux based firewall                                         #
5 # Copyright (C) 2007  Michael Tremer & Christian Schmidt                      #
6 #                                                                             #
7 # This program is free software: you can redistribute it and/or modify        #
8 # it under the terms of the GNU General Public License as published by        #
9 # the Free Software Foundation, either version 3 of the License, or           #
10 # (at your option) any later version.                                         #
11 #                                                                             #
12 # This program is distributed in the hope that it will be useful,             #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
15 # GNU General Public License for more details.                                #
16 #                                                                             #
17 # You should have received a copy of the GNU General Public License           #
18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
19 #                                                                             #
20 ###############################################################################
21
22
23 use LWP::UserAgent;
24 use File::Copy;
25 use File::Temp qw/ tempfile tempdir /;
26 use strict;
27
28 # enable only the following on debugging purpose
29 #use warnings;
30 #use CGI::Carp 'fatalsToBrowser';
31
32 require '/var/ipfire/general-functions.pl';
33 require "${General::swroot}/lang.pl";
34 require "${General::swroot}/header.pl";
35
36 my %color = ();
37 my %mainsettings = ();
38 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
39 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
40
41 my %snortsettings=();
42 my %checked=();
43 my %selected=();
44 my %netsettings=();
45 our $errormessage = '';
46 our $results = '';
47 our $tempdir = '';
48 our $url='';
49 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
50
51 &Header::showhttpheaders();
52
53 $snortsettings{'ENABLE_SNORT'} = 'off';
54 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
55 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
56 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
57 $snortsettings{'ENABLE_GUARDIAN'} = 'off';
58 $snortsettings{'GUARDIAN_INTERFACE'} = `cat /var/ipfire/red/iface`;
59 $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'} = '1';
60 $snortsettings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
61 $snortsettings{'GUARDIAN_ALERTFILE'} = '/var/log/snort/alert';
62 $snortsettings{'GUARDIAN_IGNOREFILE'} = '/var/ipfire/guardian/guardian.ignore';
63 $snortsettings{'GUARDIAN_TARGETFILE'} = '/var/ipfire/guardian/guardian.target';
64 $snortsettings{'GUARDIAN_TIMELIMIT'} = '86400';
65 $snortsettings{'ACTION'} = '';
66 $snortsettings{'ACTION2'} = '';
67 $snortsettings{'RULES'} = '';
68 $snortsettings{'OINKCODE'} = '';
69 $snortsettings{'INSTALLDATE'} = '';
70
71 &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
72
73 ####################### Added for snort rules control #################################
74 my $snortrulepath; # change to "/etc/snort/rules" - maniac
75 my @snortconfig;
76 my $restartsnortrequired = 0;
77 my %snortrules;
78 my $rule = '';
79 my $table1colour = '';
80 my $table2colour = '';
81 my $var = '';
82 my $value = '';
83 my $tmp = '';
84 my $linkedrulefile = '';
85 my $border = '';
86 my $checkboxname = '';
87
88 if (-e "/etc/snort/snort.conf") {
89
90
91         # Open snort.conf file, read it in, close it, and re-open for writing
92         open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
93         @snortconfig = <FILE>;
94         close(FILE);
95         open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
96
97     my @rules = `cd /etc/snort/rules/ && ls *.rules`;    # With this loop the rule might be display with correct rulepath set
98         foreach (@rules) {
99         chomp $_;
100         my $temp = join(";",@snortconfig);
101     if ( $temp =~ /$_/ ){next;}
102     else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
103         }
104
105         # Loop over each line
106         foreach my $line (@snortconfig) {
107                 # Trim the line
108                 chomp $line;
109
110                 # Check for a line with .rules
111                 if ($line =~ /\.rules$/) {
112                         # Parse out rule file name
113                         $rule = $line;
114                         $rule =~ s/\$RULE_PATH\///i;
115                         $rule =~ s/ ?include ?//i;
116                         $rule =~ s/\#//i;
117                         my $snortrulepathrule = "$snortrulepath/$rule";
118
119                         # Open rule file and read in contents
120                         open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
121                         my @snortrulefile = <RULEFILE>;
122                         close(RULEFILE);
123                         open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
124
125                         # Local vars
126                         my $dashlinecnt = 0;
127                         my $desclook = 1;
128                         my $snortruledesc = '';
129                         my %snortruledef = ();
130                         my $rulecnt = 1;
131
132                         # Loop over rule file contents
133                         foreach my $ruleline (@snortrulefile) {
134                                 chomp $ruleline;
135
136                                 # If still looking for a description
137                                 if ($desclook) {
138                                         # If line does not start with a # anymore, then done looking for a description
139                                         if ($ruleline !~ /^\#/) {
140                                                 $desclook = 0;
141                                         }
142
143                                         # If see more than one dashed line, (start to) create rule file description
144                                         if ($dashlinecnt > 1) {
145                                                 # Check for a line starting with a #
146                                                 if ($ruleline =~ /^\#/) {
147                                                         # Create tempruleline
148                                                         my $tempruleline = $ruleline;
149
150                                                         # Strip off # and clean up line
151                                                         $tempruleline =~ s/\# ?//i;
152
153                                                         # Check for part of a description
154                                                         if ($snortruledesc eq '') {
155                                                                 $snortruledesc = $tempruleline;
156                                                         } else {
157                                                                 $snortruledesc .= " $tempruleline";
158                                                         }
159                                                 } else {
160                                                         # Must be done
161                                                         $desclook = 0;
162                                                 }
163                                         }
164
165                                         # If have a dashed line, increment count
166                                         if ($ruleline =~ /\# ?\-+/) {
167                                                 $dashlinecnt++;
168                                         }
169                                 } else {
170                                         # Parse out rule file rule's message for display
171                                         if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
172                                                 my $msg = '';
173                                                 $msg = $1;
174                                                 $msg =~ s/msg\:\"//i;
175                                                 $msg =~ s/\";//i;
176                                                 $snortruledef{$rulecnt}{'Description'} = $msg;
177
178                                                 # Check for 'Save' and rule file displayed in query string
179                                                 if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
180                                                         # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
181                                                         if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
182                                                                 $restartsnortrequired = 1;
183                                                         }
184
185                                                         # Strip out leading # from rule line
186                                                         $ruleline =~ s/\# ?//i;
187
188                                                         # Check if it does not exists (which means it is disabled), append a #
189                                                         if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
190                                                                 $ruleline = "#"." $ruleline";
191                                                         }
192                                                 }
193
194                                                 # Check if ruleline does not begin with a #, so it is enabled
195                                                 if ($ruleline !~ /^\#/) {
196                                                         $snortruledef{$rulecnt++}{'State'} = 'Enabled';
197                                                 } else {
198                                                         # Otherwise it is disabled
199                                                         $snortruledef{$rulecnt++}{'State'} = 'Disabled';
200                                                 }
201                                         }
202                                 }
203
204                                 # Print ruleline to RULEFILE
205                                 print RULEFILE "$ruleline\n";
206                         }
207
208                         # Close RULEFILE
209                         close(RULEFILE);
210
211                         # Check for 'Save'
212                         if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
213                                 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
214                                 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
215                                         $restartsnortrequired = 1;
216                                 }
217
218                                 # Strip out leading # from rule line
219                                 $line =~ s/\# ?//i;
220
221                                 # Check if it does not exists (which means it is disabled), append a #
222                                 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
223                                         $line = "# $line";
224                                 }
225
226                         }
227
228                         # Check for rule state
229                         if ($line =~ /^\#/) {
230                                 $snortrules{$rule}{"State"} = "Disabled";
231                         } else {
232                                 $snortrules{$rule}{"State"} = "Enabled";
233                         }
234
235                         # Set rule description
236                         $snortrules{$rule}{"Description"} = $snortruledesc;
237
238                         # Loop over sorted rules
239                         foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
240                                 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
241                                 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
242                         }
243
244                         $snortruledesc = '';
245                         print FILE "$line\n";
246                 } elsif ($line =~ /var RULE_PATH/) {
247                         ($tmp, $tmp, $snortrulepath) = split(' ', $line);
248                         print FILE "$line\n";
249                 } else {
250                         print FILE "$line\n";
251                 }
252         }
253         close(FILE);
254
255         if ($restartsnortrequired) {
256                 system('/usr/local/bin/snortctrl restart >/dev/null');
257         }
258 }
259
260 #######################  End added for snort rules control  #################################
261
262 if ($snortsettings{'RULES'} eq 'subscripted') {
263         #$url="http://dl.snort.org/sub-rules/snortrules-snapshot-2.8_s.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
264         $url="http://dl.snort.org/sub-rules/snortrules-snapshot-2860_s.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
265         #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8_s.tar.gz";
266 } elsif ($snortsettings{'RULES'} eq 'registered') {
267         #$url="http://dl.snort.org/reg-rules/snortrules-snapshot-2.8.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
268         $url="http://dl.snort.org/reg-rules/snortrules-snapshot-2860.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
269         #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8.tar.gz";
270 } else {
271         $url="http://www.emergingthreats.net/rules/emerging.rules.tar.gz";
272 }
273
274 if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" )
275 {
276         $errormessage = $Lang::tr{'invalid input for oink code'} unless (
277             ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/)  ||
278             ($snortsettings{'RULESTYPE'} eq 'nothing' )       );
279
280         &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
281         if ($snortsettings{'ENABLE_SNORT'} eq 'on')
282         {
283                 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
284         } else {
285                 unlink "${General::swroot}/snort/enable";
286         }
287         if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
288         {
289                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
290         } else {
291                 unlink "${General::swroot}/snort/enable_green";
292         }
293         if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
294         {
295                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
296         } else {
297                 unlink "${General::swroot}/snort/enable_blue";
298         }
299         if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
300         {
301                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
302         } else {
303                 unlink "${General::swroot}/snort/enable_orange";
304         }
305         if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on')
306         {
307                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
308         } else {
309                 unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
310         }
311         if ($snortsettings{'ENABLE_GUARDIAN'} eq 'on')
312         {
313                 system ('/usr/bin/touch', "${General::swroot}/guardian/enable");
314         } else {
315                 unlink "${General::swroot}/guardian/enable";
316         }
317
318         system('/usr/local/bin/snortctrl restart >/dev/null');
319
320 } elsif ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "guardian" ){
321                         foreach my $key (keys %snortsettings){
322                                 if ( $key !~ /^GUARDIAN/ ){
323                                         delete $snortsettings{$key};
324                                 }
325                         }
326                         &General::writehashpart("${General::swroot}/snort/settings", \%snortsettings);
327                         open(IGNOREFILE, ">$snortsettings{'GUARDIAN_IGNOREFILE'}") or die "Unable to write guardian ignore file $snortsettings{'GUARDIAN_IGNOREFILE'}";
328                                 print IGNOREFILE $snortsettings{'GUARDIAN_IGNOREFILE_CONTENT'};
329                         close(IGNOREFILE);
330                         open(GUARDIAN, ">/var/ipfire/guardian/guardian.conf") or die "Unable to write guardian conf /var/ipfire/guardian/guardian.conf";
331                                 print GUARDIAN <<END
332 Interface   $snortsettings{'GUARDIAN_INTERFACE'}
333 HostGatewayByte   $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'}
334 LogFile   $snortsettings{'GUARDIAN_LOGFILE'}
335 AlertFile   $snortsettings{'GUARDIAN_ALERTFILE'}
336 IgnoreFile   $snortsettings{'GUARDIAN_IGNOREFILE'}
337 TargetFile   $snortsettings{'GUARDIAN_TARGETFILE'}
338 TimeLimit   $snortsettings{'GUARDIAN_TIMELIMIT'}
339 END
340 ;
341                         close(GUARDIAN);
342                 system('/usr/local/bin/snortctrl restart >/dev/null');
343 }
344          # INSTALLMD5 is not in the form, so not retrieved by getcgihash
345         &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
346
347 if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
348
349         my @df = `/bin/df -B M /var`;
350         foreach my $line (@df) {
351                 next if $line =~ m/^Filesystem/;
352
353                 if ($line =~ m/dev/ ) {
354                 $line =~ m/^.* (\d+)M.*$/;
355                 my @temp = split(/ +/,$line);
356                         if ($1<300) {
357                                 $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB";
358                         } else {
359                                 my $filename = &downloadrulesfile();
360                                 if (defined $filename) {
361                                                 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
362                                                 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
363                                                 $results .= "</pre>";
364                                         }
365                                         unlink ($filename);
366                         }
367                         
368                 }
369         }
370
371
372 }
373
374 $checked{'ENABLE_SNORT'}{'off'} = '';
375 $checked{'ENABLE_SNORT'}{'on'} = '';
376 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
377 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
378 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
379 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
380 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
381 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
382 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
383 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
384 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
385 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
386 $checked{'ENABLE_GUARDIAN'}{'off'} = '';
387 $checked{'ENABLE_GUARDIAN'}{'on'} = '';
388 $checked{'ENABLE_GUARDIAN'}{$snortsettings{'ENABLE_GUARDIAN'}} = "checked='checked'";
389 $selected{'RULES'}{'nothing'} = '';
390 $selected{'RULES'}{'community'} = '';
391 $selected{'RULES'}{'registered'} = '';
392 $selected{'RULES'}{'subscripted'} = '';
393 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
394
395 &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
396
397 ####################### Added for snort rules control #################################
398 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
399 print <<END
400 <STYLE TYPE="text/css">
401 <!--
402 .section {
403         border: groove;
404 }
405 .row1color {
406         border: ridge;
407         background-color: $color{'color22'};
408 }
409 .row2color {
410         border: ridge;
411         background-color: $color{'color20'};
412 }
413 .rowselected {
414         border: double #FF0000;
415         background-color: #DCDCDC;
416 }
417 -->
418 </STYLE>
419 END
420 ;
421 #######################  End added for snort rules control  #################################
422
423 &Header::openbigbox('100%', 'left', '', $errormessage);
424
425 ###############
426 # DEBUG DEBUG
427 # &Header::openbox('100%', 'left', 'DEBUG');
428 # my $debugCount = 0;
429 # foreach my $line (sort keys %snortsettings) {
430 # print "$line = $snortsettings{$line}<br />\n";
431 # $debugCount++;
432 # }
433 # print "&nbsp;Count: $debugCount\n";
434 # &Header::closebox();
435 # DEBUG DEBUG
436 ###############
437
438 if ($errormessage) {
439         &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
440         print "<class name='base'>$errormessage\n";
441         print "&nbsp;</class>\n";
442         &Header::closebox();
443 }
444
445 &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'});
446 print <<END
447 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
448 <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort
449 END
450 ;
451 if ($netsettings{'BLUE_DEV'} ne '') {
452   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />   BLUE Snort";
453 }
454 if ($netsettings{'ORANGE_DEV'} ne '') {
455   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />   ORANGE Snort";
456 }
457   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} />   RED Snort";
458 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
459   print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_GUARDIAN' $checked{'ENABLE_GUARDIAN'}{'on'} />  Guardian";
460 }
461
462 print <<END
463 </td></tr>
464 <tr>
465         <td><hr /></td>
466 </tr>
467 <tr>
468         <td><b>$Lang::tr{'ids rules update'}</b></td>
469 </tr>
470 <tr>
471         <td><select name='RULES'>
472                                 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
473                                 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
474                                 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
475                                 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
476                         </select>
477         </td>
478 </tr>
479 <tr>
480         <td><br />
481                 $Lang::tr{'ids rules license'} <a href='https://www.snort.org/signup' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br />
482                 $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}
483         </td>
484 </tr>
485 <tr>
486         <td nowrap='nowrap'>Oinkcode:&nbsp;<input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
487 </tr>
488 <tr>
489         <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
490 END
491 ;
492
493 if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} ) {
494         $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
495         &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
496 }
497 print "&nbsp;$Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
498
499 print <<END
500 </tr>
501 </table>
502 <hr />
503 <table width='100%'>
504 <tr>
505         <td align='center'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
506 </tr>
507 </table>
508 </form>
509 END
510 ;
511
512 if ($results ne '') {
513         print "$results";
514 }
515
516 &Header::closebox();
517
518 ####################### Added for guardian control ####################################
519 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
520         &Header::openbox('100%', 'LEFT', $Lang::tr{'guardian configuration'});
521 print <<END
522 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
523 <tr><td align='left' width='40%'>$Lang::tr{'guardian interface'}</td><td align='left'><input type='text' name='GUARDIAN_INTERFACE' value='$snortsettings{'GUARDIAN_INTERFACE'}' size="30" /></td></tr>
524 <tr><td align='left' width='40%'>$Lang::tr{'guardian timelimit'}</td><td align='left'><input type='text' name='GUARDIAN_TIMELIMIT' value='$snortsettings{'GUARDIAN_TIMELIMIT'}' size="30" /></td></tr>
525 <tr><td align='left' width='40%'>$Lang::tr{'guardian logfile'}</td><td align='left'><input type='text' name='GUARDIAN_LOGFILE' value='$snortsettings{'GUARDIAN_LOGFILE'}' size="30" /></td></tr>
526 <tr><td align='left' width='40%'>$Lang::tr{'guardian alertfile'}</td><td align='left'><input type='text' name='GUARDIAN_ALERTFILE' value='$snortsettings{'GUARDIAN_ALERTFILE'}' size="30" /></td></tr>
527 <tr><td align='left' width='40%'>$Lang::tr{'guardian ignorefile'}</td><td align='left'><textarea name='GUARDIAN_IGNOREFILE_CONTENT' cols='32' rows='6' wrap='off'>
528 END
529 ;
530         print `cat /var/ipfire/guardian/guardian.ignore`;
531 print <<END
532 </textarea></td></tr>
533 <tr><td align='center' colspan='2'><input type='hidden' name='ACTION2' value='guardian' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td></tr>
534 </table>
535 </form>
536 END
537 ;
538         &Header::closebox();
539 }
540
541
542
543
544 ####################### Added for snort rules control #################################
545 if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
546         &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
547                 # Output display table for rule files
548                 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
549
550                 print "<form method='post'>";
551
552                 # Local vars
553                 my $ruledisplaycnt = 1;
554                 my $rulecnt = keys %snortrules;
555                 $rulecnt++;
556                 $rulecnt = $rulecnt / 2;
557
558                 # Loop over each rule file
559                 foreach my $rulefile (sort keys(%snortrules)) {
560                         my $rulechecked = '';
561
562                         # Hide inkompatible Block rules
563                         if ($rulefile =~'-BLOCK.rules') {
564                                 next;
565                         }
566
567                         # Check if reached half-way through rule file rules to start new column
568                 if ($ruledisplaycnt > $rulecnt) {
569                                 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
570                                 $ruledisplaycnt = 0;
571                         }
572
573                         # Check if rule file is enabled
574                         if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
575                                 $rulechecked = 'CHECKED';
576                         }
577
578                         # Create rule file link, vars array, and display flag
579                         my $rulefilelink = "?RULEFILE=$rulefile";
580                         my $rulefiletoclose = '';
581                         my @queryvars = ();
582                         my $displayrulefilerules = 0;
583
584                         # Check for passed in query string
585                         if ($ENV{'QUERY_STRING'}) {
586                                 # Split out vars
587                                 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
588
589                                 # Loop over values
590                                 foreach $value (@queryvars) {
591                                         # Split out var pairs
592                                         ($var, $linkedrulefile) = split(/=/, $value);
593
594                                         # Check if var is 'RULEFILE'
595                                         if ($var eq 'RULEFILE') {
596                                                 # Check if rulefile equals linkedrulefile
597                                                 if ($rulefile eq $linkedrulefile) {
598                                                         # Set display flag
599                                                         $displayrulefilerules = 1;
600
601                                                         # Strip out rulefile from rulefilelink
602                                                         $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
603                                                 } else {
604                                                         # Add linked rule file to rulefilelink
605                                                         $rulefilelink .= "&RULEFILE=$linkedrulefile";
606                                                 }
607                                         }
608                                 }
609                         }
610
611                         # Strip out extra & & ? from rulefilelink
612                         $rulefilelink =~ s/^\?\&/\?/i;
613
614                         # Check for a single '?' and replace with page for proper link display
615                         if ($rulefilelink eq '?') {
616                                 $rulefilelink = "ids.cgi";
617                         }
618
619                         # Output rule file name and checkbox
620                         print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
621                         print "<TR><TD CLASS='base' VALIGN='TOP'>";
622
623                         # Check for empty 'Description'
624                         if ($snortrules{$rulefile}{'Description'} eq '') {
625                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
626                         } else {
627                                 # Output rule file 'Description'
628                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
629                         }
630
631                         # Check for display flag
632                         if ($displayrulefilerules) {
633                                 # Rule file definition rule display
634                                 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
635
636                                 # Local vars
637                                 my $ruledefdisplaycnt = 0;
638                                 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
639                                 $ruledefcnt++;
640                                 $ruledefcnt = $ruledefcnt / 2;
641
642                                 # Loop over rule file rules
643                                 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
644                                         # Local vars
645                                         my $ruledefchecked = '';
646
647                                         # If have display 2 rules, start new row
648                                         if (($ruledefdisplaycnt % 2) == 0) {
649                                                 print "</TR><TR>";
650                                                 $ruledefdisplaycnt = 0;
651                                         }
652
653                                         # Check for rules state
654                                         if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
655                                                 $ruledefchecked = 'CHECKED';
656                                         }
657
658                                         # Create rule file rule's checkbox
659                                         $checkboxname = "SNORT_RULE_$rulefile";
660                                         $checkboxname .= "_$ruledef";
661                                         print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
662
663                                         # Increment count
664                                         $ruledefdisplaycnt++;
665                                 }
666
667                                 # If do not have second rule for row, create empty cell
668                                 if (($ruledefdisplaycnt % 2) != 0) {
669                                         print "<TD CLASS='base'></TD>";
670                                 }
671
672                                 # Close display table
673                                 print "</TR></TABLE></TD></TR>";
674                 }
675
676                         # Close display table
677                         print "</TABLE>";
678
679                         # Increment ruledisplaycnt
680                 $ruledisplaycnt++;
681                 }
682         print "</TD></TR></TABLE></TD></TR></TABLE>";
683         print <<END
684 <table width='100%'>
685 <tr>
686         <td width='33%'>&nbsp;</td>
687         <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
688         <td width='33%'>
689                 &nbsp; <!-- space for future online help link -->
690         </td>
691 </tr>
692 </table>
693 </form>
694 END
695 ;
696         &Header::closebox();
697 }
698
699 #######################  End added for snort rules control  #################################
700 &Header::closebigbox();
701 &Header::closepage();
702
703 sub downloadrulesfile {
704         my $return = &geturl($url);
705         return undef unless $return;
706
707         if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
708                 $errormessage = $Lang::tr{'invalid loaded file'};
709                 return undef;
710         }
711
712         my $filename='';
713         my $fh='';
714         ($fh, $filename) = tempfile('/var/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension
715         binmode ($fh);
716         syswrite ($fh, $return->content);
717         close($fh);
718         return $filename;
719 }
720
721 sub geturl ($) {
722         my $url=$_[0];
723
724         unless (-e "${General::swroot}/red/active") {
725                 $errormessage = $Lang::tr{'could not download latest updates'};
726                 return undef;
727         }
728
729         my $downloader = LWP::UserAgent->new;
730         $downloader->timeout(5);
731
732         my %proxysettings=();
733         &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
734
735         if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
736                 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
737                 if ($proxysettings{'UPSTREAM_USER'}) {
738                         $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
739                 } else {
740                         $downloader->proxy("http","http://$peer:$peerport/");
741                 }
742         }
743
744         my $return = $downloader->get($url,'Cache-Control','no-cache');
745
746         if ($return->code == 403) {
747                 $errormessage = $Lang::tr{'access refused with this oinkcode'};
748                 return undef;
749         } elsif (!$return->is_success()) {
750                 $errormessage = $Lang::tr{'could not download latest updates'};
751                 return undef;
752         }
753
754         return $return;
755
756 }