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ac1cfefa | 1 | #!/usr/bin/perl |
70df8302 MT |
2 | ############################################################################### |
3 | # # | |
4 | # IPFire.org - A linux based firewall # | |
b6f571fa | 5 | # Copyright (C) 2007-2015 IPFire Team <info@ipfire.org> # |
70df8302 MT |
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 | ||
ac1cfefa MT |
22 | use strict; |
23 | ||
24 | # enable only the following on debugging purpose | |
90c2e164 CS |
25 | #use warnings; |
26 | #use CGI::Carp 'fatalsToBrowser'; | |
ac1cfefa | 27 | |
986e08d9 | 28 | require '/var/ipfire/general-functions.pl'; |
ac1cfefa MT |
29 | require "${General::swroot}/lang.pl"; |
30 | require "${General::swroot}/header.pl"; | |
8dcebe53 | 31 | require "${General::swroot}/ids-functions.pl"; |
ac1cfefa | 32 | |
f2fdd0c1 CS |
33 | my %color = (); |
34 | my %mainsettings = (); | |
0b89daee | 35 | my %netsettings = (); |
a232b58c | 36 | my %snortrules = (); |
ac1cfefa | 37 | my %snortsettings=(); |
43263ea6 | 38 | my %rulesetsources = (); |
298723b9 | 39 | my %cgiparams=(); |
ac1cfefa | 40 | my %checked=(); |
5a3e0dca | 41 | my %selected=(); |
0b89daee SS |
42 | |
43 | # Read-in main settings, for language, theme and colors. | |
44 | &General::readhash("${General::swroot}/main/settings", \%mainsettings); | |
45 | &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color); | |
46 | ||
47 | # Get netsettings. | |
ac1cfefa MT |
48 | &General::readhash("${General::swroot}/ethernet/settings", \%netsettings); |
49 | ||
43263ea6 SS |
50 | my $snortrulepath = "/etc/snort/rules"; |
51 | my $snortusedrulefilesfile = "${General::swroot}/snort/snort-used-rulefiles.conf"; | |
52 | my $errormessage; | |
53 | ||
ac1cfefa MT |
54 | &Header::showhttpheaders(); |
55 | ||
0b89daee | 56 | # Default settings for snort. |
ac1cfefa MT |
57 | $snortsettings{'ENABLE_SNORT'} = 'off'; |
58 | $snortsettings{'ENABLE_SNORT_GREEN'} = 'off'; | |
59 | $snortsettings{'ENABLE_SNORT_BLUE'} = 'off'; | |
60 | $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off'; | |
5a3e0dca | 61 | $snortsettings{'RULES'} = ''; |
ac1cfefa | 62 | $snortsettings{'OINKCODE'} = ''; |
ac1cfefa | 63 | |
298723b9 SS |
64 | #Get GUI values |
65 | &Header::getcgihash(\%cgiparams); | |
ac1cfefa | 66 | |
500c5c55 SS |
67 | # Try to determine if oinkmaster is running. |
68 | my $oinkmaster_pid = `pidof oinkmaster.pl -x`; | |
69 | ||
70 | # If oinkmaster is running display output. | |
71 | if ($oinkmaster_pid) { | |
72 | &working("$Lang::tr{'snort working'}"); | |
73 | } | |
74 | ||
3983aebd SS |
75 | # Check if any error has been stored. |
76 | if (-e $IDS::storederrorfile) { | |
77 | # Open file to read in the stored error message. | |
78 | open(FILE, "<$IDS::storederrorfile") or die "Could not open $IDS::storederrorfile. $!\n"; | |
79 | ||
80 | # Read the stored error message. | |
81 | $errormessage = <FILE>; | |
82 | ||
83 | # Close file. | |
84 | close (FILE); | |
85 | ||
86 | # Delete the file, which is now not longer required. | |
87 | unlink($IDS::storederrorfile); | |
88 | } | |
89 | ||
90 | ||
3da6e01b SS |
91 | ## Grab all available snort rules and store them in the snortrules hash. |
92 | # | |
422204ff SS |
93 | # Open snort rules directory and do a directory listing. |
94 | opendir(DIR, $snortrulepath) or die $!; | |
95 | # Loop through the direcory. | |
96 | while (my $file = readdir(DIR)) { | |
97 | ||
98 | # We only want files. | |
99 | next unless (-f "$snortrulepath/$file"); | |
100 | ||
101 | # Ignore empty files. | |
102 | next if (-z "$snortrulepath/$file"); | |
103 | ||
3da6e01b | 104 | # Use a regular expression to find files ending in .rules |
422204ff SS |
105 | next unless ($file =~ m/\.rules$/); |
106 | ||
3da6e01b SS |
107 | # Ignore files which are not read-able. |
108 | next unless (-R "$snortrulepath/$file"); | |
395e3b90 | 109 | |
3da6e01b SS |
110 | # Call subfunction to read-in rulefile and add rules to |
111 | # the snortrules hash. | |
112 | &readrulesfile("$file"); | |
395e3b90 | 113 | } |
395e3b90 | 114 | |
3da6e01b | 115 | closedir(DIR); |
395e3b90 | 116 | |
e5738079 SS |
117 | # Gather used rulefiles. |
118 | # | |
119 | # Check if the file for activated rulefiles is not empty. | |
120 | if(-f $snortusedrulefilesfile) { | |
121 | # Open the file for used rulefile and read-in content. | |
122 | open(FILE, $snortusedrulefilesfile) or die "Could not open $snortusedrulefilesfile. $!\n"; | |
123 | ||
124 | # Read-in content. | |
125 | my @lines = <FILE>; | |
126 | ||
127 | # Close file. | |
128 | close(FILE); | |
129 | ||
130 | # Loop through the array. | |
131 | foreach my $line (@lines) { | |
132 | # Remove newlines. | |
133 | chomp($line); | |
134 | ||
135 | # Skip comments. | |
136 | next if ($line =~ /\#/); | |
137 | ||
138 | # Skip blank lines. | |
139 | next if ($line =~ /^\s*$/); | |
140 | ||
141 | # Gather rule sid and message from the ruleline. | |
142 | if ($line =~ /.*include \$RULE_PATH\/(.*)/) { | |
143 | my $rulefile = $1; | |
144 | ||
145 | # Add the rulefile to the %snortrules hash. | |
146 | $snortrules{$rulefile}{'Rulefile'}{'State'} = "on"; | |
147 | } | |
148 | } | |
149 | } | |
150 | ||
298723b9 SS |
151 | # Save ruleset. |
152 | if ($cgiparams{'RULESET'} eq $Lang::tr{'update'}) { | |
153 | my $enabled_sids_file = "${General::swroot}/snort/oinkmaster-enabled-sids.conf"; | |
154 | my $disabled_sids_file = "${General::swroot}/snort/oinkmaster-disabled-sids.conf"; | |
155 | ||
156 | # Arrays to store sid which should be added to the corresponding files. | |
157 | my @enabled_sids; | |
158 | my @disabled_sids; | |
e5738079 | 159 | my @enabled_rulefiles; |
298723b9 SS |
160 | |
161 | # Loop through the hash of snortrules. | |
162 | foreach my $rulefile(keys %snortrules) { | |
e5738079 SS |
163 | # Check if the rulefile is enabled. |
164 | if ($cgiparams{$rulefile} eq "on") { | |
165 | # Add rulefile to the array of enabled rulefiles. | |
166 | push(@enabled_rulefiles, $rulefile); | |
b65b5ef3 SS |
167 | |
168 | # Drop item from cgiparams hash. | |
169 | delete $cgiparams{$rulefile}; | |
e5738079 | 170 | } |
466c6779 | 171 | } |
e5738079 | 172 | |
466c6779 SS |
173 | # Loop through the hash of snortrules. |
174 | foreach my $rulefile (keys %snortrules) { | |
298723b9 SS |
175 | # Loop through the single rules of the rulefile. |
176 | foreach my $sid (keys %{$snortrules{$rulefile}}) { | |
c51a044a SS |
177 | # Skip the current sid if it is not numeric. |
178 | next unless ($sid =~ /\d+/ ); | |
179 | ||
298723b9 SS |
180 | # Check if there exists a key in the cgiparams hash for this sid. |
181 | if (exists($cgiparams{$sid})) { | |
182 | # Look if the rule is disabled. | |
183 | if ($snortrules{$rulefile}{$sid}{'State'} eq "off") { | |
184 | # Check if the state has been set to 'on'. | |
185 | if ($cgiparams{$sid} eq "on") { | |
186 | # Add the sid to the enabled_sids array. | |
187 | push(@enabled_sids, $sid); | |
188 | ||
189 | # Drop item from cgiparams hash. | |
60333473 | 190 | delete $cgiparams{$rulefile}{$sid}; |
298723b9 SS |
191 | } |
192 | } | |
193 | } else { | |
194 | # Look if the rule is enabled. | |
195 | if ($snortrules{$rulefile}{$sid}{'State'} eq "on") { | |
196 | # Check if the state is 'on' and should be disabled. | |
197 | # In this case there is no entry | |
198 | # for the sid in the cgiparams hash. | |
199 | # Add it to the disabled_sids array. | |
200 | push(@disabled_sids, $sid); | |
201 | ||
202 | # Drop item from cgiparams hash. | |
60333473 | 203 | delete $cgiparams{$rulefile}{$sid}; |
298723b9 SS |
204 | } |
205 | } | |
206 | } | |
207 | } | |
208 | ||
37659505 SS |
209 | # Open enabled sid's file for writing. |
210 | open(FILE, ">$enabled_sids_file") or die "Could not write to $enabled_sids_file. $!\n"; | |
298723b9 | 211 | |
37659505 SS |
212 | # Write header to file. |
213 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
298723b9 | 214 | |
37659505 SS |
215 | # Check if the enabled_sids array contains any sid's. |
216 | if (@enabled_sids) { | |
298723b9 SS |
217 | # Loop through the array of enabled sids and write them to the file. |
218 | foreach my $sid (@enabled_sids) { | |
37659505 | 219 | print FILE "enablesid $sid\n"; |
298723b9 | 220 | } |
298723b9 SS |
221 | } |
222 | ||
37659505 SS |
223 | # Close file after writing. |
224 | close(FILE); | |
225 | ||
226 | # Open disabled sid's file for writing. | |
227 | open(FILE, ">$disabled_sids_file") or die "Could not write to $disabled_sids_file. $!\n"; | |
298723b9 | 228 | |
37659505 SS |
229 | # Write header to file. |
230 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
298723b9 | 231 | |
37659505 SS |
232 | # Check if the enabled_sids array contains any sid's. |
233 | if (@disabled_sids) { | |
234 | # Loop through the array of disabled sids and write them to the file. | |
235 | foreach my $sid (@disabled_sids) { | |
236 | print FILE "disablesid $sid\n"; | |
237 | } | |
238 | } | |
298723b9 | 239 | |
37659505 SS |
240 | # Close file after writing. |
241 | close(FILE); | |
e5738079 SS |
242 | |
243 | # Open file for used rulefiles. | |
37659505 | 244 | open (FILE, ">$snortusedrulefilesfile") or die "Could not write to $snortusedrulefilesfile. $!\n"; |
e5738079 SS |
245 | |
246 | # Write header to file. | |
247 | print FILE "#Autogenerated file. Any custom changes will be overwritten!\n"; | |
248 | ||
249 | # Check if the enabled_rulefiles array contains any entries. | |
250 | if (@enabled_rulefiles) { | |
251 | # Loop through the array of rulefiles which should be loaded and write the to the file. | |
252 | foreach my $file (@enabled_rulefiles) { | |
253 | print FILE "include \$RULE_PATH/$file\n"; | |
254 | } | |
255 | } | |
256 | ||
257 | # Close file after writing. | |
258 | close(FILE); | |
52599865 SS |
259 | |
260 | # Call oinkmaster to alter the ruleset. | |
261 | &oinkmaster(); | |
262 | ||
263 | # Download new ruleset. | |
264 | } elsif ($cgiparams{'RULESET'} eq $Lang::tr{'download new ruleset'}) { | |
43263ea6 SS |
265 | # Check if the red device is active. |
266 | unless (-e "${General::swroot}/red/active") { | |
267 | $errormessage = $Lang::tr{'could not download latest updates'}; | |
268 | } | |
52599865 | 269 | |
3983aebd | 270 | # Check if enought free disk space is availabe. |
59052432 | 271 | $errormessage = &IDS::checkdiskspace(); |
52599865 | 272 | |
43263ea6 SS |
273 | # Check if any errors happend. |
274 | unless ($errormessage) { | |
3983aebd SS |
275 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); |
276 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
277 | &Header::openbox( 'Waiting', 1,); | |
278 | print <<END; | |
279 | <table> | |
280 | <tr> | |
281 | <td><img src='/images/indicator.gif' alt='$Lang::tr{'aktiv'}' /></td> | |
282 | <td>$Lang::tr{'snort working'}</td> | |
283 | </tr> | |
284 | </table> | |
285 | END | |
286 | &Header::closebox(); | |
287 | &Header::closebigbox(); | |
288 | &Header::closepage(); | |
289 | ||
43263ea6 | 290 | # Call subfunction to download the ruleset. |
eea2670b | 291 | $errormessage = &IDS::downloadruleset(); |
8f22237b | 292 | |
3983aebd SS |
293 | # Check if the downloader returned an error. |
294 | if ($errormessage) { | |
295 | # Call function to store the errormessage. | |
296 | &IDS::log_error($errormessage); | |
52599865 | 297 | |
3983aebd SS |
298 | # Preform a reload of the page. |
299 | &reload(); | |
300 | } else { | |
301 | # Call subfunction to launch oinkmaster. | |
302 | &IDS::oinkmaster(); | |
43263ea6 | 303 | |
3983aebd SS |
304 | # Perform a reload of the page. |
305 | &reload(); | |
306 | } | |
52599865 | 307 | } |
a232b58c SS |
308 | # Save snort settings. |
309 | } elsif ($cgiparams{'SNORT'} eq $Lang::tr{'save'}) { | |
310 | # Prevent form name from been stored in conf file. | |
311 | delete $cgiparams{'SNORT'}; | |
312 | ||
313 | # Check if an oinkcode has been provided. | |
314 | if ($cgiparams{'OINKCODE'}) { | |
315 | # Check if the oinkcode contains unallowed chars. | |
316 | unless ($cgiparams{'OINKCODE'} =~ /^[a-z0-9]+$/) { | |
317 | $errormessage = $Lang::tr{'invalid input for oink code'}; | |
318 | } | |
f9c2147d | 319 | } |
ac1cfefa | 320 | |
a232b58c SS |
321 | # Go on if there are no error messages. |
322 | if (!$errormessage) { | |
323 | # Store settings into settings file. | |
324 | &General::writehash("${General::swroot}/snort/settings", \%cgiparams); | |
325 | ||
a232b58c | 326 | # Call snortctrl to restart snort |
a9a91e5f MT |
327 | system('/usr/local/bin/snortctrl restart >/dev/null'); |
328 | } | |
ac1cfefa MT |
329 | } |
330 | ||
52599865 SS |
331 | # Read-in snortsettings |
332 | &General::readhash("${General::swroot}/snort/settings", \%snortsettings); | |
333 | ||
ac1cfefa MT |
334 | $checked{'ENABLE_SNORT'}{'off'} = ''; |
335 | $checked{'ENABLE_SNORT'}{'on'} = ''; | |
336 | $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'"; | |
337 | $checked{'ENABLE_SNORT_GREEN'}{'off'} = ''; | |
338 | $checked{'ENABLE_SNORT_GREEN'}{'on'} = ''; | |
339 | $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'"; | |
340 | $checked{'ENABLE_SNORT_BLUE'}{'off'} = ''; | |
341 | $checked{'ENABLE_SNORT_BLUE'}{'on'} = ''; | |
342 | $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'"; | |
343 | $checked{'ENABLE_SNORT_ORANGE'}{'off'} = ''; | |
344 | $checked{'ENABLE_SNORT_ORANGE'}{'on'} = ''; | |
345 | $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'"; | |
5a3e0dca | 346 | $selected{'RULES'}{'nothing'} = ''; |
5a3e0dca | 347 | $selected{'RULES'}{'community'} = ''; |
a0fa489f | 348 | $selected{'RULES'}{'emerging'} = ''; |
5a3e0dca MT |
349 | $selected{'RULES'}{'registered'} = ''; |
350 | $selected{'RULES'}{'subscripted'} = ''; | |
351 | $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'"; | |
ac1cfefa MT |
352 | |
353 | &Header::openpage($Lang::tr{'intrusion detection system'}, 1, ''); | |
354 | ||
17726644 SS |
355 | ### Java Script ### |
356 | print <<END | |
357 | <script> | |
358 | // Tiny java script function to show/hide the rules | |
359 | // of a given category. | |
360 | function showhide(tblname) { | |
361 | \$("#" + tblname).toggle(); | |
362 | } | |
363 | </script> | |
364 | END | |
365 | ; | |
366 | ||
ac1cfefa MT |
367 | &Header::openbigbox('100%', 'left', '', $errormessage); |
368 | ||
369 | if ($errormessage) { | |
370 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
371 | print "<class name='base'>$errormessage\n"; | |
372 | print " </class>\n"; | |
373 | &Header::closebox(); | |
374 | } | |
375 | ||
7cc8a0e5 | 376 | &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system'}); |
1504a375 SS |
377 | |
378 | my $rulesdate; | |
379 | ||
380 | # Check if a ruleset allready has been downloaded. | |
a69b96d2 | 381 | if ( -f "$IDS::rulestarball"){ |
1504a375 | 382 | # Call stat on the filename to obtain detailed information. |
a69b96d2 | 383 | my @Info = stat("$IDS::rulestarball"); |
1504a375 SS |
384 | |
385 | # Grab details about the creation time. | |
386 | $rulesdate = localtime($Info[9]); | |
387 | } | |
388 | ||
ac1cfefa | 389 | print <<END |
1504a375 SS |
390 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> |
391 | <table width='100%' border='0'> | |
392 | <tr> | |
393 | <td class='base' width='25%'> | |
394 | <input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'}>RED Snort | |
395 | </td> | |
396 | ||
397 | <td class='base' width='25%'> | |
398 | <input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'}>GREEN Snort | |
399 | </td> | |
400 | ||
401 | <td class='base' width='25%'> | |
ac1cfefa MT |
402 | END |
403 | ; | |
1504a375 SS |
404 | |
405 | # Check if a blue device is configured. | |
406 | if ($netsettings{'BLUE_DEV'}) { | |
407 | print "<input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />BLUE Snort\n"; | |
ac1cfefa | 408 | } |
1504a375 SS |
409 | |
410 | print "</td>\n"; | |
411 | ||
412 | print "<td width='25%'>\n"; | |
413 | ||
414 | # Check if an orange device is configured. | |
415 | if ($netsettings{'ORANGE_DEV'}) { | |
416 | print "<input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />ORANGE Snort\n"; | |
ac1cfefa | 417 | } |
1b73b07e | 418 | |
ac1cfefa | 419 | print <<END |
1504a375 SS |
420 | </td> |
421 | </tr> | |
422 | ||
423 | <tr> | |
424 | <td colspan='4'><br><br></td> | |
425 | </tr> | |
426 | ||
427 | <tr> | |
428 | <td colspan='4'><b>$Lang::tr{'ids rules update'}</b></td> | |
429 | </tr> | |
430 | ||
431 | <tr> | |
432 | <td colspan='4'><select name='RULES'> | |
5a3e0dca | 433 | <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option> |
a0fa489f | 434 | <option value='emerging' $selected{'RULES'}{'emerging'} >$Lang::tr{'emerging rules'}</option> |
5a3e0dca MT |
435 | <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option> |
436 | <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option> | |
437 | <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option> | |
438 | </select> | |
1504a375 SS |
439 | </td> |
440 | </tr> | |
441 | ||
442 | <tr> | |
443 | <td colspan='4'> | |
444 | <br>$Lang::tr{'ids rules license'} <a href='https://www.snort.org/subscribe' target='_blank'>www.snort.org</a>$Lang::tr{'ids rules license1'}</br> | |
445 | <br>$Lang::tr{'ids rules license2'} <a href='https://www.snort.org/account/oinkcode' target='_blank'>Get an Oinkcode</a>, $Lang::tr{'ids rules license3'}</br> | |
446 | </td> | |
447 | </tr> | |
448 | ||
449 | <tr> | |
450 | <td colspan='4' nowrap='nowrap'>Oinkcode: <input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}'></td> | |
451 | </tr> | |
452 | ||
453 | <tr> | |
454 | <td colspan='4' align='left'><br> | |
455 | <input type='submit' name='RULESET' value='$Lang::tr{'download new ruleset'}'> $Lang::tr{'updates installed'}: $rulesdate | |
456 | </td> | |
457 | ||
458 | </tr> | |
459 | </table> | |
460 | ||
461 | <br><br> | |
462 | ||
463 | <table width='100%'> | |
464 | <tr> | |
465 | <td align='right'><input type='submit' name='SNORT' value='$Lang::tr{'save'}' /></td> | |
466 | </tr> | |
467 | </table> | |
ac1cfefa MT |
468 | </form> |
469 | END | |
470 | ; | |
471 | ||
ac1cfefa | 472 | &Header::closebox(); |
fbfdb241 | 473 | |
f7fcd1c0 | 474 | &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'}); |
298723b9 SS |
475 | print"<form method='POST' action='$ENV{'SCRIPT_NAME'}'>\n"; |
476 | ||
f7fcd1c0 | 477 | # Output display table for rule files |
17726644 | 478 | print "<table width='100%'>\n"; |
ce0e83b3 | 479 | |
17726644 SS |
480 | # Local variable required for java script to show/hide |
481 | # rules of a rulefile. | |
482 | my $rulesetcount = 1; | |
f7fcd1c0 SS |
483 | |
484 | # Loop over each rule file | |
485 | foreach my $rulefile (sort keys(%snortrules)) { | |
486 | my $rulechecked = ''; | |
487 | ||
f7fcd1c0 | 488 | # Check if rule file is enabled |
e5738079 | 489 | if ($snortrules{$rulefile}{'Rulefile'}{'State'} eq 'on') { |
f7fcd1c0 SS |
490 | $rulechecked = 'CHECKED'; |
491 | } | |
3ffee04b | 492 | |
17726644 SS |
493 | # Table and rows for the rule files. |
494 | print"<tr>\n"; | |
495 | print"<td class='base' width='5%'>\n"; | |
e5738079 | 496 | print"<input type='checkbox' name='$rulefile' $rulechecked>\n"; |
17726644 SS |
497 | print"</td>\n"; |
498 | print"<td class='base' width='90%'><b>$rulefile</b></td>\n"; | |
499 | print"<td class='base' width='5%' align='right'>\n"; | |
500 | print"<a href=\"javascript:showhide('ruleset$rulesetcount')\">SHOW</a>\n"; | |
501 | print"</td>\n"; | |
502 | print"</tr>\n"; | |
503 | ||
504 | # Rows which will be hidden per default and will contain the single rules. | |
505 | print"<tr style='display:none' id='ruleset$rulesetcount'>\n"; | |
506 | print"<td colspan='3'>\n"; | |
507 | ||
508 | # Local vars | |
509 | my $lines; | |
510 | my $rows; | |
511 | my $col; | |
512 | ||
513 | # New table for the single rules. | |
514 | print "<table width='100%'>\n"; | |
515 | ||
516 | # Loop over rule file rules | |
517 | foreach my $sid (sort {$a <=> $b} keys(%{$snortrules{$rulefile}})) { | |
f7fcd1c0 | 518 | # Local vars |
17726644 | 519 | my $ruledefchecked = ''; |
f9c2147d | 520 | |
e5738079 SS |
521 | # Skip rulefile itself. |
522 | next if ($sid eq "Rulefile"); | |
523 | ||
17726644 SS |
524 | # If 2 rules have been displayed, start a new row |
525 | if (($lines % 2) == 0) { | |
526 | print "</tr><tr>\n"; | |
3ffee04b | 527 | |
17726644 SS |
528 | # Increase rows by once. |
529 | $rows++; | |
530 | } | |
f7fcd1c0 | 531 | |
17726644 SS |
532 | # Colour lines. |
533 | if ($rows % 2) { | |
534 | $col="bgcolor='$color{'color20'}'"; | |
535 | } else { | |
536 | $col="bgcolor='$color{'color22'}'"; | |
f7fcd1c0 SS |
537 | } |
538 | ||
17726644 | 539 | # Set rule state |
298723b9 | 540 | if ($snortrules{$rulefile}{$sid}{'State'} eq 'on') { |
17726644 | 541 | $ruledefchecked = 'CHECKED'; |
f7fcd1c0 | 542 | } |
3ffee04b | 543 | |
17726644 SS |
544 | # Create rule checkbox and display rule description |
545 | print "<td class='base' width='5%' align='right' $col>\n"; | |
546 | print "<input type='checkbox' NAME='$sid' $ruledefchecked>\n"; | |
547 | print "</td>\n"; | |
548 | print "<td class='base' width='45%' $col>$snortrules{$rulefile}{$sid}{'Description'}</td>"; | |
549 | ||
550 | # Increment rule count | |
551 | $lines++; | |
552 | } | |
553 | ||
554 | # If do not have a second rule for row, create empty cell | |
555 | if (($lines % 2) != 0) { | |
556 | print "<td class='base'></td>"; | |
f7fcd1c0 SS |
557 | } |
558 | ||
559 | # Close display table | |
17726644 | 560 | print "</tr></table></td></tr>"; |
3ffee04b | 561 | |
17726644 SS |
562 | # Finished whith the rule file, increase count. |
563 | $rulesetcount++; | |
f7fcd1c0 | 564 | } |
17726644 SS |
565 | |
566 | # Close display table | |
567 | print "</table>"; | |
568 | ||
f7fcd1c0 | 569 | print <<END |
2999f1d2 CS |
570 | <table width='100%'> |
571 | <tr> | |
298723b9 | 572 | <td width='100%' align='right'><input type='submit' name='RULESET' value='$Lang::tr{'update'}'> |
3ffee04b CS |
573 | <!-- space for future online help link --> |
574 | </td> | |
2999f1d2 CS |
575 | </tr> |
576 | </table> | |
298723b9 | 577 | </form> |
3ffee04b CS |
578 | END |
579 | ; | |
f7fcd1c0 | 580 | &Header::closebox(); |
ac1cfefa MT |
581 | &Header::closebigbox(); |
582 | &Header::closepage(); | |
583 | ||
3983aebd SS |
584 | # |
585 | ## A tiny function to perform a reload of the webpage after one second. | |
586 | # | |
587 | sub reload () { | |
588 | print "<meta http-equiv='refresh' content='1'>\n"; | |
589 | ||
590 | # Stop the script. | |
591 | exit; | |
a70d269a SS |
592 | } |
593 | ||
25f5cb0d SS |
594 | # |
595 | ## Private function to read-in and parse rules of a given rulefile. | |
596 | # | |
597 | ## The given file will be read, parsed and all valid rules will be stored by ID, | |
598 | ## message/description and it's state in the snortrules hash. | |
599 | # | |
3da6e01b SS |
600 | sub readrulesfile ($) { |
601 | my $rulefile = shift; | |
602 | ||
603 | # Open rule file and read in contents | |
604 | open(RULEFILE, "$snortrulepath/$rulefile") or die "Unable to read $rulefile!"; | |
605 | ||
606 | # Store file content in an array. | |
607 | my @lines = <RULEFILE>; | |
608 | ||
609 | # Close file. | |
610 | close(RULEFILE); | |
611 | ||
612 | # Loop over rule file contents | |
613 | foreach my $line (@lines) { | |
614 | # Remove whitespaces. | |
615 | chomp $line; | |
616 | ||
617 | # Skip blank lines. | |
618 | next if ($line =~ /^\s*$/); | |
619 | ||
620 | # Local vars. | |
621 | my $sid; | |
622 | my $msg; | |
623 | ||
624 | # Gather rule sid and message from the ruleline. | |
625 | if ($line =~ m/.*msg:\"(.*?)\"\; .* sid:(.*?); /) { | |
626 | $msg = $1; | |
627 | $sid = $2; | |
628 | ||
629 | # Check if a rule has been found. | |
630 | if ($sid && $msg) { | |
631 | # Add rule to the snortrules hash. | |
632 | $snortrules{$rulefile}{$sid}{'Description'} = $msg; | |
633 | ||
634 | # Grab status of the rule. Check if ruleline starts with a "dash". | |
635 | if ($line =~ /^\#/) { | |
636 | # If yes, the rule is disabled. | |
298723b9 | 637 | $snortrules{$rulefile}{$sid}{'State'} = "off"; |
3da6e01b SS |
638 | } else { |
639 | # Otherwise the rule is enabled. | |
298723b9 | 640 | $snortrules{$rulefile}{$sid}{'State'} = "on"; |
3da6e01b SS |
641 | } |
642 | } | |
643 | } | |
644 | } | |
645 | } |