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1 | #!/usr/bin/perl | |
2 | ############################################################################### | |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
5 | # Copyright (C) 2007-2015 IPFire Team <info@ipfire.org> # | |
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 | use strict; | |
23 | ||
24 | # enable only the following on debugging purpose | |
25 | #use warnings; | |
26 | #use CGI::Carp 'fatalsToBrowser'; | |
27 | use File::Copy; | |
28 | ||
29 | require '/var/ipfire/general-functions.pl'; | |
30 | require "${General::swroot}/lang.pl"; | |
31 | require "${General::swroot}/header.pl"; | |
32 | ||
33 | my %color = (); | |
34 | my %mainsettings = (); | |
35 | my %netsettings = (); | |
36 | my %snortsettings=(); | |
37 | my %cgiparams=(); | |
38 | my %checked=(); | |
39 | my %selected=(); | |
40 | ||
41 | # Read-in main settings, for language, theme and colors. | |
42 | &General::readhash("${General::swroot}/main/settings", \%mainsettings); | |
43 | &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color); | |
44 | ||
45 | # Get netsettings. | |
46 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); | |
47 | ||
48 | &Header::showhttpheaders(); | |
49 | ||
50 | # Default settings for snort. | |
51 | $snortsettings{'ENABLE_SNORT'} = 'off'; | |
52 | $snortsettings{'ENABLE_SNORT_GREEN'} = 'off'; | |
53 | $snortsettings{'ENABLE_SNORT_BLUE'} = 'off'; | |
54 | $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off'; | |
55 | $snortsettings{'ACTION'} = ''; | |
56 | $snortsettings{'RULES'} = ''; | |
57 | $snortsettings{'OINKCODE'} = ''; | |
58 | $snortsettings{'INSTALLDATE'} = ''; | |
59 | ||
60 | #Get GUI values | |
61 | &Header::getcgihash(\%cgiparams); | |
62 | ||
63 | my $snortrulepath = "/etc/snort/rules"; | |
64 | my $snortusedrulefilesfile = "${General::swroot}/snort/snort-used-rulefiles.conf"; | |
65 | my $restartsnortrequired = 0; | |
66 | my %snortrules; | |
67 | my $errormessage; | |
68 | my $url; | |
69 | ||
70 | ## Grab all available snort rules and store them in the snortrules hash. | |
71 | # | |
72 | # Open snort rules directory and do a directory listing. | |
73 | opendir(DIR, $snortrulepath) or die $!; | |
74 | # Loop through the direcory. | |
75 | while (my $file = readdir(DIR)) { | |
76 | ||
77 | # We only want files. | |
78 | next unless (-f "$snortrulepath/$file"); | |
79 | ||
80 | # Ignore empty files. | |
81 | next if (-z "$snortrulepath/$file"); | |
82 | ||
83 | # Use a regular expression to find files ending in .rules | |
84 | next unless ($file =~ m/\.rules$/); | |
85 | ||
86 | # Ignore files which are not read-able. | |
87 | next unless (-R "$snortrulepath/$file"); | |
88 | ||
89 | # Call subfunction to read-in rulefile and add rules to | |
90 | # the snortrules hash. | |
91 | &readrulesfile("$file"); | |
92 | } | |
93 | ||
94 | closedir(DIR); | |
95 | ||
96 | # Gather used rulefiles. | |
97 | # | |
98 | # Check if the file for activated rulefiles is not empty. | |
99 | if(-f $snortusedrulefilesfile) { | |
100 | # Open the file for used rulefile and read-in content. | |
101 | open(FILE, $snortusedrulefilesfile) or die "Could not open $snortusedrulefilesfile. $!\n"; | |
102 | ||
103 | # Read-in content. | |
104 | my @lines = <FILE>; | |
105 | ||
106 | # Close file. | |
107 | close(FILE); | |
108 | ||
109 | # Loop through the array. | |
110 | foreach my $line (@lines) { | |
111 | # Remove newlines. | |
112 | chomp($line); | |
113 | ||
114 | # Skip comments. | |
115 | next if ($line =~ /\#/); | |
116 | ||
117 | # Skip blank lines. | |
118 | next if ($line =~ /^\s*$/); | |
119 | ||
120 | # Gather rule sid and message from the ruleline. | |
121 | if ($line =~ /.*include \$RULE_PATH\/(.*)/) { | |
122 | my $rulefile = $1; | |
123 | ||
124 | # Add the rulefile to the %snortrules hash. | |
125 | $snortrules{$rulefile}{'Rulefile'}{'State'} = "on"; | |
126 | } | |
127 | } | |
128 | } | |
129 | ||
130 | # Save ruleset. | |
131 | if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) { | |
132 | my $enabled_sids_file = "${General::swroot}/snort/oinkmaster-enabled-sids.conf"; | |
133 | my $disabled_sids_file = "${General::swroot}/snort/oinkmaster-disabled-sids.conf"; | |
134 | ||
135 | # Arrays to store sid which should be added to the corresponding files. | |
136 | my @enabled_sids; | |
137 | my @disabled_sids; | |
138 | my @enabled_rulefiles; | |
139 | ||
140 | # Loop through the hash of snortrules. | |
141 | foreach my $rulefile(keys %snortrules) { | |
142 | # Check if the rulefile is enabled. | |
143 | if ($cgiparams{$rulefile} eq "on") { | |
144 | # Add rulefile to the array of enabled rulefiles. | |
145 | push(@enabled_rulefiles, $rulefile); | |
146 | ||
147 | # Drop item from cgiparams hash. | |
148 | delete $cgiparams{$rulefile}; | |
149 | } | |
150 | } | |
151 | ||
152 | # Loop through the hash of snortrules. | |
153 | foreach my $rulefile (keys %snortrules) { | |
154 | # Loop through the single rules of the rulefile. | |
155 | foreach my $sid (keys %{$snortrules{$rulefile}}) { | |
156 | # Check if there exists a key in the cgiparams hash for this sid. | |
157 | if (exists($cgiparams{$sid})) { | |
158 | # Look if the rule is disabled. | |
159 | if ($snortrules{$rulefile}{$sid}{'State'} eq "off") { | |
160 | # Check if the state has been set to 'on'. | |
161 | if ($cgiparams{$sid} eq "on") { | |
162 | # Add the sid to the enabled_sids array. | |
163 | push(@enabled_sids, $sid); | |
164 | ||
165 | # Drop item from cgiparams hash. | |
166 | delete $cgiparams{$rulefile}{$sid}; | |
167 | } | |
168 | } | |
169 | } else { | |
170 | # Look if the rule is enabled. | |
171 | if ($snortrules{$rulefile}{$sid}{'State'} eq "on") { | |
172 | # Check if the state is 'on' and should be disabled. | |
173 | # In this case there is no entry | |
174 | # for the sid in the cgiparams hash. | |
175 | # Add it to the disabled_sids array. | |
176 | push(@disabled_sids, $sid); | |
177 | ||
178 | # Drop item from cgiparams hash. | |
179 | delete $cgiparams{$rulefile}{$sid}; | |
180 | } | |
181 | } | |
182 | } | |
183 | } | |
184 | ||
185 | # Open enabled sid's file for writing. | |
186 | open(FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n"; | |
187 | ||
188 | # Write header to file. | |
189 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
190 | ||
191 | # Check if the enabled_sids array contains any sid's. | |
192 | if (@enabled_sids) { | |
193 | # Loop through the array of enabled sids and write them to the file. | |
194 | foreach my $sid (@enabled_sids) { | |
195 | print FILE "enablesid $sid\n"; | |
196 | } | |
197 | } | |
198 | ||
199 | # Close file after writing. | |
200 | close(FILE); | |
201 | ||
202 | # Open disabled sid's file for writing. | |
203 | open(FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n"; | |
204 | ||
205 | # Write header to file. | |
206 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
207 | ||
208 | # Check if the enabled_sids array contains any sid's. | |
209 | if (@disabled_sids) { | |
210 | # Loop through the array of disabled sids and write them to the file. | |
211 | foreach my $sid (@disabled_sids) { | |
212 | print FILE "disablesid $sid\n"; | |
213 | } | |
214 | } | |
215 | ||
216 | # Close file after writing. | |
217 | close(FILE); | |
218 | ||
219 | # Open file for used rulefiles. | |
220 | open (FILE, ">$snortusedrulefilesfile") or die "Could not write to $snortusedrulefilesfile. $!\n"; | |
221 | ||
222 | # Write header to file. | |
223 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
224 | ||
225 | # Check if the enabled_rulefiles array contains any entries. | |
226 | if (@enabled_rulefiles) { | |
227 | # Loop through the array of rulefiles which should be loaded and write the to the file. | |
228 | foreach my $file (@enabled_rulefiles) { | |
229 | print FILE "include \$RULE_PATH/$file\n"; | |
230 | } | |
231 | } | |
232 | ||
233 | # Close file after writing. | |
234 | close(FILE); | |
235 | ||
236 | # Call oinkmaster to alter the ruleset. | |
237 | &oinkmaster(); | |
238 | ||
239 | # Download new ruleset. | |
240 | } elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) { | |
241 | # Local var. | |
242 | my $return; | |
243 | ||
244 | # Call diskfree to gather the free disk space of /var. | |
245 | my @df = `/bin/df -B M /var`; | |
246 | ||
247 | # Loop through the output. | |
248 | foreach my $line (@df) { | |
249 | # Ignore header line. | |
250 | next if $line =~ m/^Filesystem/; | |
251 | ||
252 | # Search for a line with the device information. | |
253 | if ($line =~ m/dev/ ) { | |
254 | # Split the line into single pieces. | |
255 | my @values = split(' ', $line); | |
256 | my ($filesystem, $blocks, $used, $available, $used_perenctage, $mounted_on) = @values; | |
257 | ||
258 | # Check if the available disk space is more than 300MB. | |
259 | if ($available < 300) { | |
260 | # If there is not enough space, print out an error message. | |
261 | $errormessage = "$Lang::tr{'not enough disk space'} < 300MB, /var $1MB"; | |
262 | } else { | |
263 | # Call subfunction to download the ruleset. | |
264 | &downloadrulesfile(); | |
265 | ||
266 | # Sleep for 3 seconds. | |
267 | sleep(3); | |
268 | ||
269 | # Gather return of the external wget. | |
270 | $return = `cat /var/tmp/log 2>/dev/null`; | |
271 | } | |
272 | ||
273 | # Check if there was an error. | |
274 | if ($return =~ "ERROR") { | |
275 | # Store error message for display. | |
276 | $errormessage = "<br /><pre>".$return."</pre>"; | |
277 | } else { | |
278 | # Call subfunction to launch oinkmaster. | |
279 | &oinkmaster(); | |
280 | ||
281 | # Sleep for 2 seconds. | |
282 | sleep(2); | |
283 | } | |
284 | } | |
285 | } | |
286 | } | |
287 | ||
288 | ||
289 | if ($snortsettings{'OINKCODE'} ne "") { | |
290 | $errormessage = $Lang::tr{'invalid input for oink code'} unless ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/); | |
291 | } | |
292 | ||
293 | if (!$errormessage) { | |
294 | if ($snortsettings{'RULES'} eq 'subscripted') { | |
295 | $url=" https://www.snort.org/rules/snortrules-snapshot-29111.tar.gz?oinkcode=$snortsettings{'OINKCODE'}"; | |
296 | } elsif ($snortsettings{'RULES'} eq 'registered') { | |
297 | $url=" https://www.snort.org/rules/snortrules-snapshot-29111.tar.gz?oinkcode=$snortsettings{'OINKCODE'}"; | |
298 | } elsif ($snortsettings{'RULES'} eq 'community') { | |
299 | $url=" https://www.snort.org/rules/community"; | |
300 | } else { | |
301 | $url="http://rules.emergingthreats.net/open/snort-2.9.0/emerging.rules.tar.gz"; | |
302 | } | |
303 | ||
304 | if ($snortsettings{'ACTION'} eq $Lang::tr{'save'} && $snortsettings{'ACTION2'} eq "snort" ) { | |
305 | &General::writehash("${General::swroot}/snort/settings", \%snortsettings); | |
306 | if ($snortsettings{'ENABLE_SNORT'} eq 'on') | |
307 | { | |
308 | system ('/usr/bin/touch', "${General::swroot}/snort/enable"); | |
309 | } else { | |
310 | unlink "${General::swroot}/snort/enable"; | |
311 | } | |
312 | if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on') | |
313 | { | |
314 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_green"); | |
315 | } else { | |
316 | unlink "${General::swroot}/snort/enable_green"; | |
317 | } | |
318 | if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on') | |
319 | { | |
320 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue"); | |
321 | } else { | |
322 | unlink "${General::swroot}/snort/enable_blue"; | |
323 | } | |
324 | if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on') | |
325 | { | |
326 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange"); | |
327 | } else { | |
328 | unlink "${General::swroot}/snort/enable_orange"; | |
329 | } | |
330 | if ($snortsettings{'ENABLE_PREPROCESSOR_HTTP_INSPECT'} eq 'on') | |
331 | { | |
332 | system ('/usr/bin/touch', "${General::swroot}/snort/enable_preprocessor_http_inspect"); | |
333 | } else { | |
334 | unlink "${General::swroot}/snort/enable_preprocessor_http_inspect"; | |
335 | } | |
336 | ||
337 | system('/usr/local/bin/snortctrl restart >/dev/null'); | |
338 | } | |
339 | } | |
340 | ||
341 | # Read-in snortsettings | |
342 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
343 | ||
344 | $checked{'ENABLE_SNORT'}{'off'} = ''; | |
345 | $checked{'ENABLE_SNORT'}{'on'} = ''; | |
346 | $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'"; | |
347 | $checked{'ENABLE_SNORT_GREEN'}{'off'} = ''; | |
348 | $checked{'ENABLE_SNORT_GREEN'}{'on'} = ''; | |
349 | $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'"; | |
350 | $checked{'ENABLE_SNORT_BLUE'}{'off'} = ''; | |
351 | $checked{'ENABLE_SNORT_BLUE'}{'on'} = ''; | |
352 | $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'"; | |
353 | $checked{'ENABLE_SNORT_ORANGE'}{'off'} = ''; | |
354 | $checked{'ENABLE_SNORT_ORANGE'}{'on'} = ''; | |
355 | $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'"; | |
356 | $selected{'RULES'}{'nothing'} = ''; | |
357 | $selected{'RULES'}{'community'} = ''; | |
358 | $selected{'RULES'}{'emerging'} = ''; | |
359 | $selected{'RULES'}{'registered'} = ''; | |
360 | $selected{'RULES'}{'subscripted'} = ''; | |
361 | $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'"; | |
362 | ||
363 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
364 | ||
365 | ### Java Script ### | |
366 | print <<END | |
367 | <script> | |
368 | // Tiny java script function to show/hide the rules | |
369 | // of a given category. | |
370 | function showhide(tblname) { | |
371 | \$("#" + tblname).toggle(); | |
372 | } | |
373 | </script> | |
374 | END | |
375 | ; | |
376 | ||
377 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
378 | ||
379 | ############### | |
380 | # DEBUG DEBUG | |
381 | # &Header::openbox('100%', 'left', 'DEBUG'); | |
382 | # my $debugCount = 0; | |
383 | # foreach my $line (sort keys %snortsettings) { | |
384 | # print "$line = $snortsettings{$line}<br />\n"; | |
385 | # $debugCount++; | |
386 | # } | |
387 | # print " Count: $debugCount\n"; | |
388 | # &Header::closebox(); | |
389 | # DEBUG DEBUG | |
390 | ############### | |
391 | ||
392 | if ($errormessage) { | |
393 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
394 | print "<class name='base'>$errormessage\n"; | |
395 | print " </class>\n"; | |
396 | &Header::closebox(); | |
397 | } | |
398 | ||
399 | my $return = `pidof oinkmaster.pl -x`; | |
400 | chomp($return); | |
401 | if ($return) { | |
402 | &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='10;'>" ); | |
403 | print <<END; | |
404 | <table> | |
405 | <tr><td> | |
406 | <img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /> | |
407 | <td> | |
408 | $Lang::tr{'snort working'} | |
409 | <tr><td colspan='2' align='center'> | |
410 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
411 | <input type='image' alt='$Lang::tr{'reload'}' title='$Lang::tr{'reload'}' src='/images/view-refresh.png' /> | |
412 | </form> | |
413 | <tr><td colspan='2' align='left'><pre> | |
414 | END | |
415 | my @output = `tail -20 /var/tmp/log`; | |
416 | foreach (@output) { | |
417 | print "$_"; | |
418 | } | |
419 | print <<END; | |
420 | </pre> | |
421 | </table> | |
422 | END | |
423 | &Header::closebox(); | |
424 | &Header::closebigbox(); | |
425 | &Header::closepage(); | |
426 | exit; | |
427 | refreshpage(); | |
428 | } | |
429 | ||
430 | &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'}); | |
431 | print <<END | |
432 | <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'> | |
433 | <tr><td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />GREEN Snort | |
434 | END | |
435 | ; | |
436 | if ($netsettings{'BLUE_DEV'} ne '') { | |
437 | print " <input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} /> BLUE Snort"; | |
438 | } | |
439 | if ($netsettings{'ORANGE_DEV'} ne '') { | |
440 | print " <input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} /> ORANGE Snort"; | |
441 | } | |
442 | print " <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} /> RED Snort"; | |
443 | ||
444 | print <<END | |
445 | </td></tr> | |
446 | <tr> | |
447 | <td><br><br></td> | |
448 | </tr> | |
449 | <tr> | |
450 | <td><b>$Lang::tr{'ids rules update'}</b></td> | |
451 | </tr> | |
452 | <tr> | |
453 | <td><select name='RULES'> | |
454 | <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option> | |
455 | <option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option> | |
456 | <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option> | |
457 | <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option> | |
458 | <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option> | |
459 | </select> | |
460 | </td> | |
461 | </tr> | |
462 | <tr> | |
463 | <td><br /> | |
464 | $Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}<br /><br /> | |
465 | $Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'} | |
466 | </td> | |
467 | </tr> | |
468 | <tr> | |
469 | <td nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td> | |
470 | </tr> | |
471 | <tr> | |
472 | <td width='30%' align='left'><br><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' /> | |
473 | END | |
474 | ; | |
475 | if ( -e "/var/tmp/snortrules.tar.gz"){ | |
476 | my @Info = stat("/var/tmp/snortrules.tar.gz"); | |
477 | $snortsettings{'INSTALLDATE'} = localtime($Info[9]); | |
478 | } | |
479 | print " $Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>"; | |
480 | ||
481 | print <<END | |
482 | </tr> | |
483 | </table> | |
484 | <br><br> | |
485 | <table width='100%'> | |
486 | <tr> | |
487 | <td align='right'><input type='hidden' name='ACTION2' value='snort' /><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td> | |
488 | </tr> | |
489 | </table> | |
490 | </form> | |
491 | END | |
492 | ; | |
493 | ||
494 | &Header::closebox(); | |
495 | ||
496 | &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'}); | |
497 | print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n"; | |
498 | ||
499 | # Output display table for rule files | |
500 | print "<table width='100%'>\n"; | |
501 | ||
502 | # Local variable required for java script to show/hide | |
503 | # rules of a rulefile. | |
504 | my $rulesetcount = 1; | |
505 | ||
506 | # Loop over each rule file | |
507 | foreach my $rulefile (sort keys(%snortrules)) { | |
508 | my $rulechecked = ''; | |
509 | ||
510 | # Check if rule file is enabled | |
511 | if ($snortrules{$rulefile}{'Rulefile'}{'State'} eq 'on') { | |
512 | $rulechecked = 'CHECKED'; | |
513 | } | |
514 | ||
515 | # Table and rows for the rule files. | |
516 | print"<tr>\n"; | |
517 | print"<td class='base' width='5%'>\n"; | |
518 | print"<input type='checkbox' name='$rulefile' $rulechecked>\n"; | |
519 | print"</td>\n"; | |
520 | print"<td class='base' width='90%'><b>$rulefile</b></td>\n"; | |
521 | print"<td class='base' width='5%' align='right'>\n"; | |
522 | print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n"; | |
523 | print"</td>\n"; | |
524 | print"</tr>\n"; | |
525 | ||
526 | # Rows which will be hidden per default and will contain the single rules. | |
527 | print"<tr style='display:none' id='ruleset$rulesetcount'>\n"; | |
528 | print"<td colspan='3'>\n"; | |
529 | ||
530 | # Local vars | |
531 | my $lines; | |
532 | my $rows; | |
533 | my $col; | |
534 | ||
535 | # New table for the single rules. | |
536 | print "<table width='100%'>\n"; | |
537 | ||
538 | # Loop over rule file rules | |
539 | foreach my $sid (sort {$a <=> $b} keys(%{$snortrules{$rulefile}})) { | |
540 | # Local vars | |
541 | my $ruledefchecked = ''; | |
542 | ||
543 | # Skip rulefile itself. | |
544 | next if ($sid eq "Rulefile"); | |
545 | ||
546 | # If 2 rules have been displayed, start a new row | |
547 | if (($lines % 2) == 0) { | |
548 | print "</tr><tr>\n"; | |
549 | ||
550 | # Increase rows by once. | |
551 | $rows++; | |
552 | } | |
553 | ||
554 | # Colour lines. | |
555 | if ($rows % 2) { | |
556 | $col="bgcolor='$color{'color20'}'"; | |
557 | } else { | |
558 | $col="bgcolor='$color{'color22'}'"; | |
559 | } | |
560 | ||
561 | # Set rule state | |
562 | if ($snortrules{$rulefile}{$sid}{'State'} eq 'on') { | |
563 | $ruledefchecked = 'CHECKED'; | |
564 | } | |
565 | ||
566 | # Create rule checkbox and display rule description | |
567 | print "<td class='base' width='5%' align='right' $col>\n"; | |
568 | print "<input type='checkbox' NAME='$sid' $ruledefchecked>\n"; | |
569 | print "</td>\n"; | |
570 | print "<td class='base' width='45%' $col>$snortrules{$rulefile}{$sid}{'Description'}</td>"; | |
571 | ||
572 | # Increment rule count | |
573 | $lines++; | |
574 | } | |
575 | ||
576 | # If do not have a second rule for row, create empty cell | |
577 | if (($lines % 2) != 0) { | |
578 | print "<td class='base'></td>"; | |
579 | } | |
580 | ||
581 | # Close display table | |
582 | print "</tr></table></td></tr>"; | |
583 | ||
584 | # Finished whith the rule file, increase count. | |
585 | $rulesetcount++; | |
586 | } | |
587 | ||
588 | # Close display table | |
589 | print "</table>"; | |
590 | ||
591 | print <<END | |
592 | <table width='100%'> | |
593 | <tr> | |
594 | <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'> | |
595 | <!-- space for future online help link --> | |
596 | </td> | |
597 | </tr> | |
598 | </table> | |
599 | </form> | |
600 | END | |
601 | ; | |
602 | &Header::closebox(); | |
603 | ||
604 | &Header::closebigbox(); | |
605 | &Header::closepage(); | |
606 | ||
607 | sub refreshpage { | |
608 | &Header::openbox( 'Waiting', 1, "<meta http-equiv='refresh' content='1;'>" ); | |
609 | print "<center><img src='/images/clock.gif' alt='' /><br/><font color='red'>$Lang::tr{'pagerefresh'}</font></center>"; | |
610 | &Header::closebox(); | |
611 | } | |
612 | ||
613 | sub downloadrulesfile { | |
614 | my $peer; | |
615 | my $peerport; | |
616 | ||
617 | unlink("/var/tmp/log"); | |
618 | ||
619 | unless (-e "${General::swroot}/red/active") { | |
620 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
621 | return undef; | |
622 | } | |
623 | ||
624 | my %proxysettings=(); | |
625 | &General::readhash("${General::swroot}/proxy/settings", \%proxysettings); | |
626 | ||
627 | if ($_=$proxysettings{'UPSTREAM_PROXY'}) { | |
628 | ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/); | |
629 | } | |
630 | ||
631 | if ($peer) { | |
632 | system("wget -r --proxy=on --proxy-user=$proxysettings{'UPSTREAM_USER'} --proxy-passwd=$proxysettings{'UPSTREAM_PASSWORD'} -e http_proxy=http://$peer:$peerport/ -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url"); | |
633 | } else { | |
634 | system("wget -r -o /var/tmp/log --output-document=/var/tmp/snortrules.tar.gz $url"); | |
635 | } | |
636 | } | |
637 | ||
638 | sub oinkmaster () { | |
639 | # Call oinkmaster to generate ruleset. | |
640 | system("/usr/local/bin/oinkmaster.pl -v -s -u file:///var/tmp/snortrules.tar.gz -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules >>/var/tmp/log 2>&1 &"); | |
641 | } | |
642 | ||
643 | sub readrulesfile ($) { | |
644 | my $rulefile = shift; | |
645 | ||
646 | # Open rule file and read in contents | |
647 | open(RULEFILE, "$snortrulepath/$rulefile") or die "Unable to read $rulefile!"; | |
648 | ||
649 | # Store file content in an array. | |
650 | my @lines = <RULEFILE>; | |
651 | ||
652 | # Close file. | |
653 | close(RULEFILE); | |
654 | ||
655 | # Loop over rule file contents | |
656 | foreach my $line (@lines) { | |
657 | # Remove whitespaces. | |
658 | chomp $line; | |
659 | ||
660 | # Skip blank lines. | |
661 | next if ($line =~ /^\s*$/); | |
662 | ||
663 | # Local vars. | |
664 | my $sid; | |
665 | my $msg; | |
666 | ||
667 | # Gather rule sid and message from the ruleline. | |
668 | if ($line =~ m/.*msg:\"(.*?)\"\; .* sid:(.*?); /) { | |
669 | $msg = $1; | |
670 | $sid = $2; | |
671 | ||
672 | # Check if a rule has been found. | |
673 | if ($sid && $msg) { | |
674 | # Add rule to the snortrules hash. | |
675 | $snortrules{$rulefile}{$sid}{'Description'} = $msg; | |
676 | ||
677 | # Grab status of the rule. Check if ruleline starts with a "dash". | |
678 | if ($line =~ /^\#/) { | |
679 | # If yes, the rule is disabled. | |
680 | $snortrules{$rulefile}{$sid}{'State'} = "off"; | |
681 | } else { | |
682 | # Otherwise the rule is enabled. | |
683 | $snortrules{$rulefile}{$sid}{'State'} = "on"; | |
684 | } | |
685 | } | |
686 | } | |
687 | } | |
688 | } |