Fixed ids ignore file and style.css
[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 $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set
47 our $realmd5 = '';
48 our $results = '';
49 our $tempdir = '';
50 our $url='';
51 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
52
53 &Header::showhttpheaders();
54
55 $snortsettings{'ENABLE_SNORT'} = 'off';
56 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
57 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
58 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
59 $snortsettings{'ENABLE_GUARDIAN'} = 'off';
60 $snortsettings{'GUARDIAN_INTERFACE'} = `cat /var/ipfire/red/iface`;
61 $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'} = '1';
62 $snortsettings{'GUARDIAN_LOGFILE'} = '/var/log/guardian/guardian.log';
63 $snortsettings{'GUARDIAN_ALERTFILE'} = '/var/log/snort/alert';
64 $snortsettings{'GUARDIAN_IGNOREFILE'} = '/var/ipfire/guardian/guardian.ignore';
65 $snortsettings{'GUARDIAN_TARGETFILE'} = '/var/ipfire/guardian/guardian.target';
66 $snortsettings{'GUARDIAN_TIMELIMIT'} = '86400';
67 $snortsettings{'ACTION'} = '';
68 $snortsettings{'ACTION2'} = '';
69 $snortsettings{'RULES'} = '';
70 $snortsettings{'OINKCODE'} = '';
71 $snortsettings{'INSTALLDATE'} = '';
72 $snortsettings{'INSTALLMD5'} = '';
73
74 &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
75
76 ####################### Added for snort rules control #################################
77 my $snortrulepath; # change to "/etc/snort/rules" - maniac
78 my @snortconfig;
79 my $restartsnortrequired = 0;
80 my %snortrules;
81 my $rule = '';
82 my $table1colour = '';
83 my $table2colour = '';
84 my $var = '';
85 my $value = '';
86 my $tmp = '';
87 my $linkedrulefile = '';
88 my $border = '';
89 my $checkboxname = '';
90
91 if (-e "/etc/snort/snort.conf") {
92
93
94 # Open snort.conf file, read it in, close it, and re-open for writing
95 open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
96 @snortconfig = <FILE>;
97 close(FILE);
98 open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
99
100 my @rules = `cd /etc/snort/rules/ && ls *.rules`; # With this loop the rule might be display with correct rulepath set
101 foreach (@rules) {
102 chomp $_;
103 my $temp = join(";",@snortconfig);
104 if ( $temp =~ /$_/ ){next;}
105 else { push(@snortconfig,"#include \$RULE_PATH/".$_);}
106 }
107
108 # Loop over each line
109 foreach my $line (@snortconfig) {
110 # Trim the line
111 chomp $line;
112
113 # Check for a line with .rules
114 if ($line =~ /\.rules$/) {
115 # Parse out rule file name
116 $rule = $line;
117 $rule =~ s/\$RULE_PATH\///i;
118 $rule =~ s/ ?include ?//i;
119 $rule =~ s/\#//i;
120 my $snortrulepathrule = "$snortrulepath/$rule";
121
122 # Open rule file and read in contents
123 open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
124 my @snortrulefile = <RULEFILE>;
125 close(RULEFILE);
126 open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
127
128 # Local vars
129 my $dashlinecnt = 0;
130 my $desclook = 1;
131 my $snortruledesc = '';
132 my %snortruledef = ();
133 my $rulecnt = 1;
134
135 # Loop over rule file contents
136 foreach my $ruleline (@snortrulefile) {
137 chomp $ruleline;
138
139 # If still looking for a description
140 if ($desclook) {
141 # If line does not start with a # anymore, then done looking for a description
142 if ($ruleline !~ /^\#/) {
143 $desclook = 0;
144 }
145
146 # If see more than one dashed line, (start to) create rule file description
147 if ($dashlinecnt > 1) {
148 # Check for a line starting with a #
149 if ($ruleline =~ /^\#/) {
150 # Create tempruleline
151 my $tempruleline = $ruleline;
152
153 # Strip off # and clean up line
154 $tempruleline =~ s/\# ?//i;
155
156 # Check for part of a description
157 if ($snortruledesc eq '') {
158 $snortruledesc = $tempruleline;
159 } else {
160 $snortruledesc .= " $tempruleline";
161 }
162 } else {
163 # Must be done
164 $desclook = 0;
165 }
166 }
167
168 # If have a dashed line, increment count
169 if ($ruleline =~ /\# ?\-+/) {
170 $dashlinecnt++;
171 }
172 } else {
173 # Parse out rule file rule's message for display
174 if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
175 my $msg = '';
176 $msg = $1;
177 $msg =~ s/msg\:\"//i;
178 $msg =~ s/\";//i;
179 $snortruledef{$rulecnt}{'Description'} = $msg;
180
181 # Check for 'Save' and rule file displayed in query string
182 if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
183 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
184 if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
185 $restartsnortrequired = 1;
186 }
187
188 # Strip out leading # from rule line
189 $ruleline =~ s/\# ?//i;
190
191 # Check if it does not exists (which means it is disabled), append a #
192 if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
193 $ruleline = "#"." $ruleline";
194 }
195 }
196
197 # Check if ruleline does not begin with a #, so it is enabled
198 if ($ruleline !~ /^\#/) {
199 $snortruledef{$rulecnt++}{'State'} = 'Enabled';
200 } else {
201 # Otherwise it is disabled
202 $snortruledef{$rulecnt++}{'State'} = 'Disabled';
203 }
204 }
205 }
206
207 # Print ruleline to RULEFILE
208 print RULEFILE "$ruleline\n";
209 }
210
211 # Close RULEFILE
212 close(RULEFILE);
213
214 # Check for 'Save'
215 if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
216 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
217 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
218 $restartsnortrequired = 1;
219 }
220
221 # Strip out leading # from rule line
222 $line =~ s/\# ?//i;
223
224 # Check if it does not exists (which means it is disabled), append a #
225 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
226 $line = "# $line";
227 }
228
229 }
230
231 # Check for rule state
232 if ($line =~ /^\#/) {
233 $snortrules{$rule}{"State"} = "Disabled";
234 } else {
235 $snortrules{$rule}{"State"} = "Enabled";
236 }
237
238 # Set rule description
239 $snortrules{$rule}{"Description"} = $snortruledesc;
240
241 # Loop over sorted rules
242 foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
243 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
244 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
245 }
246
247 $snortruledesc = '';
248 print FILE "$line\n";
249 } elsif ($line =~ /var RULE_PATH/) {
250 ($tmp, $tmp, $snortrulepath) = split(' ', $line);
251 print FILE "$line\n";
252 } else {
253 print FILE "$line\n";
254 }
255 }
256 close(FILE);
257
258 if ($restartsnortrequired) {
259 system('/usr/local/bin/snortctrl restart >/dev/null');
260 }
261 }
262
263 ####################### End added for snort rules control #################################
264
265 if ($snortsettings{'RULES'} eq 'subscripted') {
266 $url="http://dl.snort.org/reg-rules/snortrules-snapshot-2.8_s.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
267 #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8_s.tar.gz";
268 } elsif ($snortsettings{'RULES'} eq 'registered') {
269 $url="http://dl.snort.org/reg-rules/snortrules-snapshot-2.8.tar.gz?oink_code=$snortsettings{'OINKCODE'}";
270 #$url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-2.8.tar.gz";
271 } else {
272 $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz";
273 }
274
275 if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" )
276 {
277 $errormessage = $Lang::tr{'invalid input for oink code'} unless (
278 ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/) ||
279 ($snortsettings{'RULESTYPE'} eq 'nothing' ) );
280
281 &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
282 if ($snortsettings{'ENABLE_SNORT'} eq 'on')
283 {
284 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
285 } else {
286 unlink "${General::swroot}/snort/enable";
287 }
288 if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
289 {
290 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
291 } else {
292 unlink "${General::swroot}/snort/enable_green";
293 }
294 if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
295 {
296 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
297 } else {
298 unlink "${General::swroot}/snort/enable_blue";
299 }
300 if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
301 {
302 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
303 } else {
304 unlink "${General::swroot}/snort/enable_orange";
305 }
306 if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on')
307 {
308 system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect");
309 } else {
310 unlink "${General::swroot}/snort/enable_preprocessor_http_inspect";
311 }
312 if ($snortsettings{'ENABLE_GUARDIAN'} eq 'on')
313 {
314 system ('/usr/bin/touch', "${General::swroot}/guardian/enable");
315 } else {
316 unlink "${General::swroot}/guardian/enable";
317 }
318
319 system('/usr/local/bin/snortctrl restart >/dev/null');
320
321 } elsif ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "guardian" ){
322 open(IGNOREFILE, ">$snortsettings{'GUARDIAN_IGNOREFILE'}") or die "Unable to write guardian ignore file $snortsettings{'GUARDIAN_IGNOREFILE'}";
323 print IGNOREFILE $snortsettings{'IGNOREFILE_CONTENT'};
324 close(IGNOREFILE);
325 open(GUARDIAN, ">/var/ipfire/guardian/guardian.conf") or die "Unable to write guardian conf /var/ipfire/guardian/guardian.conf";
326 print GUARDIAN <<END
327 Interface $snortsettings{'GUARDIAN_INTERFACE'}
328 HostGatewayByte $snortsettings{'GUARDIAN_HOSTGATEWAYBYTE'}
329 LogFile $snortsettings{'GUARDIAN_LOGFILE'}
330 AlertFile $snortsettings{'GUARDIAN_ALERTFILE'}
331 IgnoreFile $snortsettings{'GUARDIAN_IGNOREFILE'}
332 TargetFile $snortsettings{'GUARDIAN_TARGETFILE'}
333 TimeLimit $snortsettings{'GUARDIAN_TIMELIMIT'}
334 END
335 ;
336 close(GUARDIAN);
337 system('/usr/local/bin/snortctrl restart >/dev/null');
338 }
339 # INSTALLMD5 is not in the form, so not retrieved by getcgihash
340 &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
341
342 if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
343 $md5 = &getmd5;
344 if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) {
345 chomp($md5);
346 my $filename = &downloadrulesfile();
347 if (defined $filename) {
348 # Check MD5sum
349 $realmd5 = `/usr/bin/md5sum $filename`;
350 chomp ($realmd5);
351 $realmd5 =~ s/^(\w+)\s.*$/$1/;
352 if ( $md5 ne $realmd5 ) {
353 $errormessage = "$Lang::tr{'invalid md5sum'} - $md5 - $realmd5";
354 } else {
355 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
356 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
357 $results .= "</pre>";
358 }
359 unlink ($filename);
360 }
361 }
362 }
363
364 $checked{'ENABLE_SNORT'}{'off'} = '';
365 $checked{'ENABLE_SNORT'}{'on'} = '';
366 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
367 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
368 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
369 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
370 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
371 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
372 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
373 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
374 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
375 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
376 $checked{'ENABLE_GUARDIAN'}{'off'} = '';
377 $checked{'ENABLE_GUARDIAN'}{'on'} = '';
378 $checked{'ENABLE_GUARDIAN'}{$snortsettings{'ENABLE_GUARDIAN'}} = "checked='checked'";
379 $selected{'RULES'}{'nothing'} = '';
380 $selected{'RULES'}{'community'} = '';
381 $selected{'RULES'}{'registered'} = '';
382 $selected{'RULES'}{'subscripted'} = '';
383 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
384
385 &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
386
387 ####################### Added for snort rules control #################################
388 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
389 print <<END
390 <STYLE TYPE="text/css">
391 <!--
392 .section {
393 border: groove;
394 }
395 .row1color {
396 border: ridge;
397 background-color: $color{'color22'};
398 }
399 .row2color {
400 border: ridge;
401 background-color: $color{'color20'};
402 }
403 .rowselected {
404 border: double #FF0000;
405 background-color: #DCDCDC;
406 }
407 -->
408 </STYLE>
409 END
410 ;
411 ####################### End added for snort rules control #################################
412
413 &Header::openbigbox('100%', 'left', '', $errormessage);
414
415 if ($errormessage) {
416 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
417 print "<class name='base'>$errormessage\n";
418 print "&nbsp;</class>\n";
419 &Header::closebox();
420 }
421
422 &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'});
423 print <<END
424 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
425 <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort
426 END
427 ;
428 if ($netsettings{'BLUE_DEV'} ne '') {
429 print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> BLUE Snort";
430 }
431 if ($netsettings{'ORANGE_DEV'} ne '') {
432 print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort";
433 }
434 print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort";
435 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
436 print "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<input type='checkbox' name='ENABLE_GUARDIAN' $checked{'ENABLE_GUARDIAN'}{'on'} /> Guardian";
437 }
438
439 print <<END
440 </td></tr>
441 <tr>
442 <td><hr /></td>
443 </tr>
444 <tr>
445 <td><b>$Lang::tr{'ids rules update'}</b></td>
446 </tr>
447 <tr>
448 <td><select name='RULES'>
449 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
450 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
451 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
452 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
453 </select>
454 </td>
455 </tr>
456 <tr>
457 <td><br />
458 $Lang::tr{'ids rules license'} <a href='https://www.snort.org/signup' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br />
459 $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}
460 </td>
461 </tr>
462 <tr>
463 <td nowrap='nowrap'>Oinkcode:&nbsp;<input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
464 </tr>
465 <tr>
466 <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
467 END
468 ;
469
470 if ($snortsettings{'INSTALLMD5'} eq $md5) {
471 print "&nbsp;$Lang::tr{'rules already up to date'}</td>";
472 } else {
473 if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} && $md5 eq $realmd5 ) {
474 $snortsettings{'INSTALLMD5'} = $realmd5;
475 $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
476 &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
477 }
478 print "&nbsp;$Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
479 }
480 print <<END
481 </tr>
482 </table>
483 <hr />
484 <table width='100%'>
485 <tr>
486 <td align='center'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
487 </tr>
488 </table>
489 </form>
490 END
491 ;
492
493 if ($results ne '') {
494 print "$results";
495 }
496
497 &Header::closebox();
498
499 ####################### Added for guardian control ####################################
500 if ( -e "/var/ipfire/guardian/guardian.conf" ) {
501 &Header::openbox('100%', 'LEFT', $Lang::tr{'guardian configuration'});
502 print <<END
503 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
504 <tr><td align='left' width='40%'>$Lang::tr{'guardian interface'}</td><td align='left'><input type='text' name='INTERFACE' value='$snortsettings{'GUARDIAN_INTERFACE'}' size="30" /></td></tr>
505 <tr><td align='left' width='40%'>$Lang::tr{'guardian timelimit'}</td><td align='left'><input type='text' name='TIMELIMIT' value='$snortsettings{'GUARDIAN_TIMELIMIT'}' size="30" /></td></tr>
506 <tr><td align='left' width='40%'>$Lang::tr{'guardian logfile'}</td><td align='left'><input type='text' name='LOGFILE' value='$snortsettings{'GUARDIAN_LOGFILE'}' size="30" /></td></tr>
507 <tr><td align='left' width='40%'>$Lang::tr{'guardian alertfile'}</td><td align='left'><input type='text' name='ALERTFILE' value='$snortsettings{'GUARDIAN_ALERTFILE'}' size="30" /></td></tr>
508 <tr><td align='left' width='40%'>$Lang::tr{'guardian ignorefile'}</td><td align='left'><textarea name='IGNOREFILE_CONTENT' cols='32' rows='6' wrap='off'>
509 END
510 ;
511 print `cat /var/ipfire/guardian/guardian.ignore`;
512 print <<END
513 </textarea></td></tr>
514 <tr><td align='center' colspan='2'><input type='hidden' name='ACTION2' value='guardian' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td></tr>
515 </table>
516 </form>
517 END
518 ;
519 &Header::closebox();
520 }
521
522
523
524
525 ####################### Added for snort rules control #################################
526 if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
527 &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
528 # Output display table for rule files
529 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
530
531 print "<form method='post'>";
532
533 # Local vars
534 my $ruledisplaycnt = 1;
535 my $rulecnt = keys %snortrules;
536 $rulecnt++;
537 $rulecnt = $rulecnt / 2;
538
539 # Loop over each rule file
540 foreach my $rulefile (sort keys(%snortrules)) {
541 my $rulechecked = '';
542
543 # Check if reached half-way through rule file rules to start new column
544 if ($ruledisplaycnt > $rulecnt) {
545 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
546 $ruledisplaycnt = 0;
547 }
548
549 # Check if rule file is enabled
550 if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
551 $rulechecked = 'CHECKED';
552 }
553
554 # Create rule file link, vars array, and display flag
555 my $rulefilelink = "?RULEFILE=$rulefile";
556 my $rulefiletoclose = '';
557 my @queryvars = ();
558 my $displayrulefilerules = 0;
559
560 # Check for passed in query string
561 if ($ENV{'QUERY_STRING'}) {
562 # Split out vars
563 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
564
565 # Loop over values
566 foreach $value (@queryvars) {
567 # Split out var pairs
568 ($var, $linkedrulefile) = split(/=/, $value);
569
570 # Check if var is 'RULEFILE'
571 if ($var eq 'RULEFILE') {
572 # Check if rulefile equals linkedrulefile
573 if ($rulefile eq $linkedrulefile) {
574 # Set display flag
575 $displayrulefilerules = 1;
576
577 # Strip out rulefile from rulefilelink
578 $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
579 } else {
580 # Add linked rule file to rulefilelink
581 $rulefilelink .= "&RULEFILE=$linkedrulefile";
582 }
583 }
584 }
585 }
586
587 # Strip out extra & & ? from rulefilelink
588 $rulefilelink =~ s/^\?\&/\?/i;
589
590 # Check for a single '?' and replace with page for proper link display
591 if ($rulefilelink eq '?') {
592 $rulefilelink = "ids.cgi";
593 }
594
595 # Output rule file name and checkbox
596 print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
597 print "<TR><TD CLASS='base' VALIGN='TOP'>";
598
599 # Check for empty 'Description'
600 if ($snortrules{$rulefile}{'Description'} eq '') {
601 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
602 } else {
603 # Output rule file 'Description'
604 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
605 }
606
607 # Check for display flag
608 if ($displayrulefilerules) {
609 # Rule file definition rule display
610 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
611
612 # Local vars
613 my $ruledefdisplaycnt = 0;
614 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
615 $ruledefcnt++;
616 $ruledefcnt = $ruledefcnt / 2;
617
618 # Loop over rule file rules
619 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
620 # Local vars
621 my $ruledefchecked = '';
622
623 # If have display 2 rules, start new row
624 if (($ruledefdisplaycnt % 2) == 0) {
625 print "</TR><TR>";
626 $ruledefdisplaycnt = 0;
627 }
628
629 # Check for rules state
630 if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
631 $ruledefchecked = 'CHECKED';
632 }
633
634 # Create rule file rule's checkbox
635 $checkboxname = "SNORT_RULE_$rulefile";
636 $checkboxname .= "_$ruledef";
637 print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
638
639 # Increment count
640 $ruledefdisplaycnt++;
641 }
642
643 # If do not have second rule for row, create empty cell
644 if (($ruledefdisplaycnt % 2) != 0) {
645 print "<TD CLASS='base'></TD>";
646 }
647
648 # Close display table
649 print "</TR></TABLE></TD></TR>";
650 }
651
652 # Close display table
653 print "</TABLE>";
654
655 # Increment ruledisplaycnt
656 $ruledisplaycnt++;
657 }
658 print "</TD></TR></TABLE></TD></TR></TABLE>";
659 print <<END
660 <table width='100%'>
661 <tr>
662 <td width='33%'>&nbsp;</td>
663 <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
664 <td width='33%'>
665 &nbsp; <!-- space for future online help link -->
666 </td>
667 </tr>
668 </table>
669 </form>
670 END
671 ;
672 &Header::closebox();
673 }
674
675 ####################### End added for snort rules control #################################
676 &Header::closebigbox();
677 &Header::closepage();
678
679 sub getmd5 {
680 # Retrieve MD5 sum from $url.md5 file
681
682 my $md5buf;
683 if ($snortsettings{'RULES'} eq 'subscripted') {
684 $md5buf = &geturl("http://dl.snort.org/reg-rules/snortrules-snapshot-2.8_s.tar.gz.md5?oink_code=$snortsettings{'OINKCODE'}");
685 } elsif ($snortsettings{'RULES'} eq 'registered') {
686 $md5buf = &geturl("http://dl.snort.org/reg-rules/snortrules-snapshot-2.8.tar.gz.md5?oink_code=$snortsettings{'OINKCODE'}");
687 } else {
688 $md5buf = &geturl("http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz.md5");
689 }
690
691 return undef unless $md5buf;
692
693 if (0) { # 1 to debug
694 my $filename='';
695 my $fh='';
696 ($fh, $filename) = tempfile('/var/tmp/XXXXXXXX',SUFFIX => '.md5' );
697 binmode ($fh);
698 syswrite ($fh, $md5buf->content);
699 close($fh);
700 }
701
702 return $md5buf->content;
703 }
704 sub downloadrulesfile {
705 my $return = &geturl($url);
706 return undef unless $return;
707
708 if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
709 $errormessage = $Lang::tr{'invalid loaded file'};
710 return undef;
711 }
712
713 my $filename='';
714 my $fh='';
715 ($fh, $filename) = tempfile('/var/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension
716 binmode ($fh);
717 syswrite ($fh, $return->content);
718 close($fh);
719 return $filename;
720 }
721
722 sub geturl ($) {
723 my $url=$_[0];
724
725 unless (-e "${General::swroot}/red/active") {
726 $errormessage = $Lang::tr{'could not download latest updates'};
727 return undef;
728 }
729
730 my $downloader = LWP::UserAgent->new;
731 $downloader->timeout(5);
732
733 my %proxysettings=();
734 &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
735
736 if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
737 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
738 if ($proxysettings{'UPSTREAM_USER'}) {
739 $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
740 } else {
741 $downloader->proxy("http","http://$peer:$peerport/");
742 }
743 }
744
745 my $return = $downloader->get($url,'Cache-Control','no-cache');
746
747 if ($return->code == 403) {
748 $errormessage = $Lang::tr{'access refused with this oinkcode'};
749 return undef;
750 } elsif (!$return->is_success()) {
751 $errormessage = $Lang::tr{'could not download latest updates'};
752 return undef;
753 }
754
755 return $return;
756
757 }