html/cgi-bin/ids.cgi

   1 #!/usr/bin/perl
   2 #
   3 # SmoothWall CGIs
   4 #
   5 # This code is distributed under the terms of the GPL
   6 #
   7 # (c) The SmoothWall Team
   8 #
   9
  10 use LWP::UserAgent;
  11 use File::Copy;
  12 use File::Temp qw/ tempfile tempdir /;
  13 use strict;
  14
  15 # enable only the following on debugging purpose
  16 use warnings;
  17 use CGI::Carp 'fatalsToBrowser';
  18
  19 require '/var/ipfire/general-functions.pl';
  20 require "${General::swroot}/lang.pl";
  21 require "${General::swroot}/header.pl";
  22
  23 my %color = ();
  24 my %mainsettings = ();
  25 &General::readhash("${General::swroot}/main/settings", \%mainsettings);
  26 &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
  27
  28 my %snortsettings=();
  29 my %checked=();
  30 my %selected=();
  31 my %netsettings=();
  32 our $errormessage = '';
  33 our $md5 = '0';# not '' to avoid displaying the wrong message when INSTALLMD5 not set
  34 our $realmd5 = '';
  35 our $results = '';
  36 our $tempdir = '';
  37 our $url='';
  38 &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
  39
  40 &Header::showhttpheaders();
  41
  42 $snortsettings{'ENABLE_SNORT'} = 'off';
  43 $snortsettings{'ENABLE_SNORT_GREEN'} = 'off';
  44 $snortsettings{'ENABLE_SNORT_BLUE'} = 'off';
  45 $snortsettings{'ENABLE_SNORT_ORANGE'} = 'off';
  46 $snortsettings{'ACTION'} = '';
  47 $snortsettings{'RULES'} = '';
  48 $snortsettings{'OINKCODE'} = '';
  49 $snortsettings{'INSTALLDATE'} = '';
  50 $snortsettings{'INSTALLMD5'} = '';
  51
  52 &Header::getcgihash(\%snortsettings, {'wantfile' => 1, 'filevar' => 'FH'});
  53
  54 ####################### Added for snort rules control #################################
  55 my $snortrulepath;
  56 my @snortconfig;
  57 my $restartsnortrequired = 0;
  58 my %snortrules;
  59 my $rule = '';
  60 my $table1colour = '';
  61 my $table2colour = '';
  62 my $var = '';
  63 my $value = '';
  64 my $tmp = '';
  65 my $linkedrulefile = '';
  66 my $border = '';
  67 my $checkboxname = '';
  68
  69 if (-e "/etc/snort/snort.conf") {
  70         # Open snort.conf file, read it in, close it, and re-open for writing
  71         open(FILE, "/etc/snort/snort.conf") or die 'Unable to read snort config file.';
  72         @snortconfig = <FILE>;
  73         close(FILE);
  74         open(FILE, ">/etc/snort/snort.conf") or die 'Unable to write snort config file.';
  75
  76         # Loop over each line
  77         foreach my $line (@snortconfig) {
  78                 # Trim the line
  79                 chomp $line;
  80
  81                 # Check for a line with .rules
  82                 if ($line =~ /\.rules$/) {
  83                         # Parse out rule file name
  84                         $rule = $line;
  85                         $rule =~ s/\$RULE_PATH\///i;
  86                         $rule =~ s/ ?include ?//i;
  87                         $rule =~ s/\#//i;
  88                         my $snortrulepathrule = "$snortrulepath/$rule";
  89
  90                         # Open rule file and read in contents
  91                         open(RULEFILE, "$snortrulepath/$rule") or die "Unable to read snort rule file for reading => $snortrulepath/$rule.";
  92                         my @snortrulefile = <RULEFILE>;
  93                         close(RULEFILE);
  94                         open(RULEFILE, ">$snortrulepath/$rule") or die "Unable to write snort rule file for writing $snortrulepath/$rule";
  95
  96                         # Local vars
  97                         my $dashlinecnt = 0;
  98                         my $desclook = 1;
  99                         my $snortruledesc = '';
 100                         my %snortruledef = ();
 101                         my $rulecnt = 1;
 102
 103                         # Loop over rule file contents
 104                         foreach my $ruleline (@snortrulefile) {
 105                                 chomp $ruleline;
 106
 107                                 # If still looking for a description
 108                                 if ($desclook) {
 109                                         # If line does not start with a # anymore, then done looking for a description
 110                                         if ($ruleline !~ /^\#/) {
 111                                                 $desclook = 0;
 112                                         }
 113
 114                                         # If see more than one dashed line, (start to) create rule file description
 115                                         if ($dashlinecnt > 1) {
 116                                                 # Check for a line starting with a #
 117                                                 if ($ruleline =~ /^\#/) {
 118                                                         # Create tempruleline
 119                                                         my $tempruleline = $ruleline;
 120
 121                                                         # Strip off # and clean up line
 122                                                         $tempruleline =~ s/\# ?//i;
 123
 124                                                         # Check for part of a description
 125                                                         if ($snortruledesc eq '') {
 126                                                                 $snortruledesc = $tempruleline;
 127                                                         } else {
 128                                                                 $snortruledesc .= " $tempruleline";
 129                                                         }
 130                                                 } else {
 131                                                         # Must be done
 132                                                         $desclook = 0;
 133                                                 }
 134                                         }
 135
 136                                         # If have a dashed line, increment count
 137                                         if ($ruleline =~ /\# ?\-+/) {
 138                                                 $dashlinecnt++;
 139                                         }
 140                                 } else {
 141                                         # Parse out rule file rule's message for display
 142                                         if ($ruleline =~ /(msg\:\"[^\"]+\";)/) {
 143                                                 my $msg = '';
 144                                                 $msg = $1;
 145                                                 $msg =~ s/msg\:\"//i;
 146                                                 $msg =~ s/\";//i;
 147                                                 $snortruledef{$rulecnt}{'Description'} = $msg;
 148
 149                                                 # Check for 'Save' and rule file displayed in query string
 150                                                 if (($snortsettings{'ACTION'} eq $Lang::tr{'update'}) && ($ENV{'QUERY_STRING'} =~ /$rule/i)) {
 151                                                         # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
 152                                                         if ((($ruleline =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"})) || (($ruleline !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}))) {
 153                                                                 $restartsnortrequired = 1;
 154                                                         }
 155
 156                                                         # Strip out leading # from rule line
 157                                                         $ruleline =~ s/\# ?//i;
 158
 159                                                         # Check if it does not exists (which means it is disabled), append a #
 160                                                         if (!exists $snortsettings{"SNORT_RULE_$rule\_$rulecnt"}) {
 161                                                                 $ruleline = "#"." $ruleline";
 162                                                         }
 163                                                 }
 164
 165                                                 # Check if ruleline does not begin with a #, so it is enabled
 166                                                 if ($ruleline !~ /^\#/) {
 167                                                         $snortruledef{$rulecnt++}{'State'} = 'Enabled';
 168                                                 } else {
 169                                                         # Otherwise it is disabled
 170                                                         $snortruledef{$rulecnt++}{'State'} = 'Disabled';
 171                                                 }
 172                                         }
 173                                 }
 174
 175                                 # Print ruleline to RULEFILE
 176                                 print RULEFILE "$ruleline\n";
 177                         }
 178
 179                         # Close RULEFILE
 180                         close(RULEFILE);
 181
 182                         # Check for 'Save'
 183                         if ($snortsettings{'ACTION'} eq $Lang::tr{'update'}) {
 184                                 # Check for a disable rule which is now enabled, or an enabled rule which is now disabled
 185                                 if ((($line =~ /^\#/) && (exists $snortsettings{"SNORT_RULE_$rule"})) || (($line !~ /^\#/) && (!exists $snortsettings{"SNORT_RULE_$rule"}))) {
 186                                         $restartsnortrequired = 1;
 187                                 }
 188
 189                                 # Strip out leading # from rule line
 190                                 $line =~ s/\# ?//i;
 191
 192                                 # Check if it does not exists (which means it is disabled), append a #
 193                                 if (!exists $snortsettings{"SNORT_RULE_$rule"}) {
 194                                         $line = "# $line";
 195                                 }
 196                         }
 197
 198                         # Check for rule state
 199                         if ($line =~ /^\#/) {
 200                                 $snortrules{$rule}{"State"} = "Disabled";
 201                         } else {
 202                                 $snortrules{$rule}{"State"} = "Enabled";
 203                         }
 204
 205                         # Set rule description
 206                         $snortrules{$rule}{"Description"} = $snortruledesc;
 207
 208                         # Loop over sorted rules
 209                         foreach my $ruledef (sort {$a <=> $b} keys(%snortruledef)) {
 210                                 $snortrules{$rule}{"Definition"}{$ruledef}{'Description'} = $snortruledef{$ruledef}{'Description'};
 211                                 $snortrules{$rule}{"Definition"}{$ruledef}{'State'} = $snortruledef{$ruledef}{'State'};
 212                         }
 213
 214                         $snortruledesc = '';
 215                         print FILE "$line\n";
 216                 } elsif ($line =~ /var RULE_PATH/) {
 217                         ($tmp, $tmp, $snortrulepath) = split(' ', $line);
 218                         print FILE "$line\n";
 219                 } else {
 220                         print FILE "$line\n";
 221                 }
 222         }
 223         close(FILE);
 224
 225         if ($restartsnortrequired) {
 226                 system('/usr/local/bin/snortctrl restart >/dev/null');
 227         }
 228 }
 229
 230 #######################  End added for snort rules control  #################################
 231
 232 if ($snortsettings{'RULES'} eq 'subscripted') {
 233         $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT_s.tar.gz";
 234 } elsif ($snortsettings{'RULES'} eq 'registered') {
 235         $url="http://www.snort.org/pub-bin/oinkmaster.cgi/$snortsettings{'OINKCODE'}/snortrules-snapshot-CURRENT.tar.gz";
 236 } else {
 237         $url="http://www.snort.org/pub-bin/downloads.cgi/Download/comm_rules/Community-Rules-CURRENT.tar.gz";
 238 }
 239
 240 if ($snortsettings{'ACTION'} eq $Lang::tr{'save'})
 241 {
 242         $errormessage = $Lang::tr{'invalid input for oink code'} unless (
 243             ($snortsettings{'OINKCODE'} =~ /^[a-z0-9]+$/)  ||
 244             ($snortsettings{'RULESTYPE'} eq 'nothing' )       );
 245
 246         &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
 247         if ($snortsettings{'ENABLE_SNORT'} eq 'on')
 248         {
 249                 system ('/usr/bin/touch', "${General::swroot}/snort/enable");
 250         } else {
 251                 unlink "${General::swroot}/snort/enable";
 252         }
 253         if ($snortsettings{'ENABLE_SNORT_GREEN'} eq 'on')
 254         {
 255                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_green");
 256         } else {
 257                 unlink "${General::swroot}/snort/enable_green";
 258         }
 259         if ($snortsettings{'ENABLE_SNORT_BLUE'} eq 'on')
 260         {
 261                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_blue");
 262         } else {
 263                 unlink "${General::swroot}/snort/enable_blue";
 264         }
 265         if ($snortsettings{'ENABLE_SNORT_ORANGE'} eq 'on')
 266         {
 267                 system ('/usr/bin/touch', "${General::swroot}/snort/enable_orange");
 268         } else {
 269                 unlink "${General::swroot}/snort/enable_orange";
 270         }
 271
 272                 system('/usr/local/bin/snortctrl restart >/dev/null');
 273
 274 } else {
 275          # INSTALLMD5 is not in the form, so not retrieved by getcgihash
 276         &General::readhash("${General::swroot}/snort/settings", \%snortsettings);
 277 }
 278
 279 if ($snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'}) {
 280         $md5 = &getmd5;
 281         if (($snortsettings{'INSTALLMD5'} ne $md5) && defined $md5 ) {
 282                 chomp($md5);
 283                 my $filename = &downloadrulesfile();
 284                 if (defined $filename) {
 285                         # Check MD5sum
 286                         $realmd5 = `/usr/bin/md5sum $filename`;
 287                         chomp ($realmd5);
 288                         $realmd5 =~ s/^(\w+)\s.*$/$1/;
 289                         if ($md5 ne $realmd5) {
 290                                 $errormessage = "$Lang::tr{'invalid md5sum'}";
 291                         } else {
 292                                 $results = "<b>$Lang::tr{'installed updates'}</b>\n<pre>";
 293                                 $results .=`/usr/local/bin/oinkmaster.pl -s -u file://$filename -C /var/ipfire/snort/oinkmaster.conf -o /etc/snort/rules 2>&1`;
 294                                 $results .= "</pre>";
 295                         }
 296                         unlink ($filename);
 297                 }
 298         }
 299 }
 300
 301 $checked{'ENABLE_SNORT'}{'off'} = '';
 302 $checked{'ENABLE_SNORT'}{'on'} = '';
 303 $checked{'ENABLE_SNORT'}{$snortsettings{'ENABLE_SNORT'}} = "checked='checked'";
 304 $checked{'ENABLE_SNORT_GREEN'}{'off'} = '';
 305 $checked{'ENABLE_SNORT_GREEN'}{'on'} = '';
 306 $checked{'ENABLE_SNORT_GREEN'}{$snortsettings{'ENABLE_SNORT_GREEN'}} = "checked='checked'";
 307 $checked{'ENABLE_SNORT_BLUE'}{'off'} = '';
 308 $checked{'ENABLE_SNORT_BLUE'}{'on'} = '';
 309 $checked{'ENABLE_SNORT_BLUE'}{$snortsettings{'ENABLE_SNORT_BLUE'}} = "checked='checked'";
 310 $checked{'ENABLE_SNORT_ORANGE'}{'off'} = '';
 311 $checked{'ENABLE_SNORT_ORANGE'}{'on'} = '';
 312 $checked{'ENABLE_SNORT_ORANGE'}{$snortsettings{'ENABLE_SNORT_ORANGE'}} = "checked='checked'";
 313 $selected{'RULES'}{'nothing'} = '';
 314 $selected{'RULES'}{'community'} = '';
 315 $selected{'RULES'}{'registered'} = '';
 316 $selected{'RULES'}{'subscripted'} = '';
 317 $selected{'RULES'}{$snortsettings{'RULES'}} = "selected='selected'";
 318
 319 &Header::openpage($Lang::tr{'intrusion detection system'}, 1, '');
 320
 321 ####################### Added for snort rules control #################################
 322 print "<SCRIPT LANGUAGE='JavaScript' SRC='/include/snortupdateutility.js'></SCRIPT>";
 323 print <<END
 324 <STYLE TYPE="text/css">
 325 <!--
 326 .section {
 327         border: groove;
 328 }
 329 .row1color {
 330         border: ridge;
 331         background-color: $color{'color22'};
 332 }
 333 .row2color {
 334         border: ridge;
 335         background-color: $color{'color20'};
 336 }
 337 .rowselected {
 338         border: double #FF0000;
 339         background-color: #DCDCDC;
 340 }
 341 -->
 342 </STYLE>
 343 END
 344 ;
 345 #######################  End added for snort rules control  #################################
 346
 347 &Header::openbigbox('100%', 'left', '', $errormessage);
 348
 349 if ($errormessage) {
 350         &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
 351         print "<class name='base'>$errormessage\n";
 352         print "&nbsp;</class>\n";
 353         &Header::closebox();
 354 }
 355
 356 &Header::openbox('100%', 'left', $Lang::tr{'intrusion detection system2'});
 357 print <<END
 358 <form method='post' action='$ENV{'SCRIPT_NAME'}'><table width='100%'>
 359 <tr>
 360         <td class='base'><input type='checkbox' name='ENABLE_SNORT_GREEN' $checked{'ENABLE_SNORT_GREEN'}{'on'} />
 361                 GREEN Snort</td>
 362 </tr>
 363 END
 364 ;
 365 if ($netsettings{'BLUE_DEV'} ne '') {
 366 print <<END
 367 <tr>
 368         <td class='base'><input type='checkbox' name='ENABLE_SNORT_BLUE' $checked{'ENABLE_SNORT_BLUE'}{'on'} />
 369                 BLUE Snort</td>
 370 </tr>
 371 END
 372 ;
 373 }
 374 if ($netsettings{'ORANGE_DEV'} ne '') {
 375 print <<END
 376 <tr>
 377         <td class='base'><input type='checkbox' name='ENABLE_SNORT_ORANGE' $checked{'ENABLE_SNORT_ORANGE'}{'on'} />
 378                 ORANGE Snort</td>
 379 </tr>
 380 END
 381 ;
 382 }
 383 print <<END
 384 <tr>
 385         <td class='base'><input type='checkbox' name='ENABLE_SNORT' $checked{'ENABLE_SNORT'}{'on'} />
 386                 RED Snort</td>
 387 </tr>
 388 <tr>
 389         <td><hr /></td>
 390 </tr>
 391 <tr>
 392         <td><b>$Lang::tr{'ids rules update'}</b></td>
 393 </tr>
 394 <tr>
 395         <td><select name='RULES'>
 396                                 <option value='nothing' $selected{'RULES'}{'nothing'} >$Lang::tr{'no'}</option>
 397                                 <option value='community' $selected{'RULES'}{'community'} >$Lang::tr{'community rules'}</option>
 398                                 <option value='registered' $selected{'RULES'}{'registered'} >$Lang::tr{'registered user rules'}</option>
 399                                 <option value='subscripted' $selected{'RULES'}{'subscripted'} >$Lang::tr{'subscripted user rules'}</option>
 400                         </select>
 401         </td>
 402 </tr>
 403 <tr>
 404         <td><br />
 405                 $Lang::tr{'ids rules license'} <a href='http://www.snort.org/' target='_blank'>http://www.snort.org</a>.<br />
 406                 <br />
 407                 $Lang::tr{'ids rules license2'} <a href='http://www.snort.org/reg-bin/userprefs.cgi' target='_blank'>USER PREFERENCES</a>, $Lang::tr{'ids rules license3'}<br />
 408         </td>
 409 </tr>
 410 <tr>
 411         <td nowrap='nowrap'>Oinkcode:&nbsp;<input type='text' size='40' name='OINKCODE' value='$snortsettings{'OINKCODE'}' /></td>
 412 </tr>
 413 <tr>
 414         <td width='30%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'download new ruleset'}' />
 415 END
 416 ;
 417
 418 if ($snortsettings{'INSTALLMD5'} eq $md5) {
 419         print "&nbsp;$Lang::tr{'rules already up to date'}</td>";
 420 } else {
 421         if ( $snortsettings{'ACTION'} eq $Lang::tr{'download new ruleset'} && $md5 eq $realmd5 ) {
 422                 $snortsettings{'INSTALLMD5'} = $realmd5;
 423                 $snortsettings{'INSTALLDATE'} = `/bin/date +'%Y-%m-%d'`;
 424                 &General::writehash("${General::swroot}/snort/settings", \%snortsettings);
 425         }
 426         print "&nbsp;$Lang::tr{'updates installed'}: $snortsettings{'INSTALLDATE'}</td>";
 427 }
 428 print <<END
 429 </tr>
 430 </table>
 431 <hr />
 432 <table width='100%'>
 433 <tr>
 434         <td width='55%'>&nbsp;</td>
 435         <td width='40%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'save'}' /></td>
 436         <td width='5%'>
 437                 &nbsp; <!-- space for future online help link -->
 438         </td>
 439 </tr>
 440 </table>
 441 </form>
 442 END
 443 ;
 444
 445 if ($results ne '') {
 446         print "$results";
 447 }
 448
 449 &Header::closebox();
 450 ####################### Added for snort rules control #################################
 451 if ( -e "${General::swroot}/snort/enable" || -e "${General::swroot}/snort/enable_green" || -e "${General::swroot}/snort/enable_blue" || -e "${General::swroot}/snort/enable_orange" ) {
 452         &Header::openbox('100%', 'LEFT', $Lang::tr{'intrusion detection system rules'});
 453                 # Output display table for rule files
 454                 print "<TABLE width='100%'><TR><TD VALIGN='TOP'><TABLE>";
 455
 456                 print "<form method='post'>";
 457
 458                 # Local vars
 459                 my $ruledisplaycnt = 1;
 460                 my $rulecnt = keys %snortrules;
 461                 $rulecnt++;
 462                 $rulecnt = $rulecnt / 2;
 463
 464                 # Loop over each rule file
 465                 foreach my $rulefile (sort keys(%snortrules)) {
 466                         my $rulechecked = '';
 467
 468                         # Check if reached half-way through rule file rules to start new column
 469                         if ($ruledisplaycnt > $rulecnt) {
 470                                 print "</TABLE></TD><TD VALIGN='TOP'><TABLE>";
 471                                 $ruledisplaycnt = 0;
 472                         }
 473
 474                         # Check if rule file is enabled
 475                         if ($snortrules{$rulefile}{"State"} eq 'Enabled') {
 476                                 $rulechecked = 'CHECKED';
 477                         }
 478
 479                         # Create rule file link, vars array, and display flag
 480                         my $rulefilelink = "?RULEFILE=$rulefile";
 481                         my $rulefiletoclose = '';
 482                         my @queryvars = ();
 483                         my $displayrulefilerules = 0;
 484
 485                         # Check for passed in query string
 486                         if ($ENV{'QUERY_STRING'}) {
 487                                 # Split out vars
 488                                 @queryvars = split(/\&/, $ENV{'QUERY_STRING'});
 489
 490                                 # Loop over values
 491                                 foreach $value (@queryvars) {
 492                                         # Split out var pairs
 493                                         ($var, $linkedrulefile) = split(/=/, $value);
 494
 495                                         # Check if var is 'RULEFILE'
 496                                         if ($var eq 'RULEFILE') {
 497                                                 # Check if rulefile equals linkedrulefile
 498                                                 if ($rulefile eq $linkedrulefile) {
 499                                                         # Set display flag
 500                                                         $displayrulefilerules = 1;
 501
 502                                                         # Strip out rulefile from rulefilelink
 503                                                         $rulefilelink =~ s/RULEFILE=$linkedrulefile//g;
 504                                                 } else {
 505                                                         # Add linked rule file to rulefilelink
 506                                                         $rulefilelink .= "&RULEFILE=$linkedrulefile";
 507                                                 }
 508                                         }
 509                                 }
 510                         }
 511
 512                         # Strip out extra & & ? from rulefilelink
 513                         $rulefilelink =~ s/^\?\&/\?/i;
 514
 515                         # Check for a single '?' and replace with page for proper link display
 516                         if ($rulefilelink eq '?') {
 517                                 $rulefilelink = "ids.cgi";
 518                         }
 519
 520                         # Output rule file name and checkbox
 521                         print "<TR><TD CLASS='base' VALIGN='TOP'><INPUT TYPE='checkbox' NAME='SNORT_RULE_$rulefile' $rulechecked> <A HREF='$rulefilelink'>$rulefile</A></TD></TR>";
 522                         print "<TR><TD CLASS='base' VALIGN='TOP'>";
 523
 524                         # Check for empty 'Description'
 525                         if ($snortrules{$rulefile}{'Description'} eq '') {
 526                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>No description available</TD></TR>";
 527                         } else {
 528                                 # Output rule file 'Description'
 529                                 print "<TABLE WIDTH='100%'><TR><TD CLASS='base'>$snortrules{$rulefile}{'Description'}</TD></TR>";
 530                         }
 531
 532                         # Check for display flag
 533                         if ($displayrulefilerules) {
 534                                 # Rule file definition rule display
 535                                 print "<TR><TD CLASS='base' VALIGN='TOP'><TABLE border=1><TR>";
 536
 537                                 # Local vars
 538                                 my $ruledefdisplaycnt = 0;
 539                                 my $ruledefcnt = keys %{$snortrules{$rulefile}{"Definition"}};
 540                                 $ruledefcnt++;
 541                                 $ruledefcnt = $ruledefcnt / 2;
 542
 543                                 # Loop over rule file rules
 544                                 foreach my $ruledef (sort {$a <=> $b} keys(%{$snortrules{$rulefile}{"Definition"}})) {
 545                                         # Local vars
 546                                         my $ruledefchecked = '';
 547
 548                                         # If have display 2 rules, start new row
 549                                         if (($ruledefdisplaycnt % 2) == 0) {
 550                                                 print "</TR><TR>";
 551                                                 $ruledefdisplaycnt = 0;
 552                                         }
 553
 554                                         # Check for rules state
 555                                         if ($snortrules{$rulefile}{'Definition'}{$ruledef}{'State'} eq 'Enabled') {
 556                                                 $ruledefchecked = 'CHECKED';
 557                                         }
 558
 559                                         # Create rule file rule's checkbox
 560                                         $checkboxname = "SNORT_RULE_$rulefile";
 561                                         $checkboxname .= "_$ruledef";
 562                                         print "<TD CLASS='base'><INPUT TYPE='checkbox' NAME='$checkboxname' $ruledefchecked> $snortrules{$rulefile}{'Definition'}{$ruledef}{'Description'}</TD>";
 563
 564                                         # Increment count
 565                                         $ruledefdisplaycnt++;
 566                                 }
 567
 568                                 # If do not have second rule for row, create empty cell
 569                                 if (($ruledefdisplaycnt % 2) != 0) {
 570                                         print "<TD CLASS='base'></TD>";
 571                                 }
 572
 573                                 # Close display table
 574                                 print "</TR></TABLE></TD></TR>";
 575                         }
 576
 577                         # Close display table
 578                         print "</TABLE>";
 579
 580                         # Increment ruledisplaycnt
 581                         $ruledisplaycnt++;
 582                 }
 583
 584         print "</TD></TR></TABLE></TD></TR></TABLE>";
 585         print <<END
 586 <table width='100%'>
 587 <tr>
 588         <td width='33%'>&nbsp;</td>
 589         <td width='33%' align='center'><input type='submit' name='ACTION' value='$Lang::tr{'update'}' /></td>
 590         <td width='33%'>
 591                 &nbsp; <!-- space for future online help link -->
 592         </td>
 593 </tr>
 594 </table>
 595 </form>
 596 END
 597 ;
 598         &Header::closebox();
 599 }
 600 #######################  End added for snort rules control  #################################
 601 &Header::closebigbox();
 602 &Header::closepage();
 603
 604 sub getmd5 {
 605         # Retrieve MD5 sum from $url.md5 file
 606         #
 607         my $md5buf = &geturl("$url.md5");
 608         return undef unless $md5buf;
 609
 610         if (0) { # 1 to debug
 611                 my $filename='';
 612                 my $fh='';
 613                 ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.md5' );
 614                 binmode ($fh);
 615                 syswrite ($fh, $md5buf->content);
 616                 close($fh);
 617         }
 618         return $md5buf->content;
 619 }
 620 sub downloadrulesfile {
 621         my $return = &geturl($url);
 622         return undef unless $return;
 623
 624         if (index($return->content, "\037\213") == -1 ) { # \037\213 is .gz beginning
 625                 $errormessage = $Lang::tr{'invalid loaded file'};
 626                 return undef;
 627         }
 628
 629         my $filename='';
 630         my $fh='';
 631         ($fh, $filename) = tempfile('/tmp/XXXXXXXX',SUFFIX => '.tar.gz' );#oinkmaster work only with this extension
 632         binmode ($fh);
 633         syswrite ($fh, $return->content);
 634         close($fh);
 635         return $filename;
 636 }
 637
 638 sub geturl ($) {
 639         my $url=$_[0];
 640
 641         unless (-e "${General::swroot}/red/active") {
 642                 $errormessage = $Lang::tr{'could not download latest updates'};
 643                 return undef;
 644         }
 645
 646         my $downloader = LWP::UserAgent->new;
 647         $downloader->timeout(5);
 648
 649         my %proxysettings=();
 650         &General::readhash("${General::swroot}/proxy/settings", \%proxysettings);
 651
 652         if ($_=$proxysettings{'UPSTREAM_PROXY'}) {
 653                 my ($peer, $peerport) = (/^(?:[a-zA-Z ]+\:\/\/)?(?:[A-Za-z0-9\_\.\-]*?(?:\:[A-Za-z0-9\_\.\-]*?)?\@)?([a-zA-Z0-9\.\_\-]*?)(?:\:([0-9]{1,5}))?(?:\/.*?)?$/);
 654                 if ($proxysettings{'UPSTREAM_USER'}) {
 655                         $downloader->proxy("http","http://$proxysettings{'UPSTREAM_USER'}:$proxysettings{'UPSTREAM_PASSWORD'}@"."$peer:$peerport/");
 656                 } else {
 657                         $downloader->proxy("http","http://$peer:$peerport/");
 658                 }
 659         }
 660
 661         my $return = $downloader->get($url,'Cache-Control','no-cache');
 662
 663         if ($return->code == 403) {
 664                 $errormessage = $Lang::tr{'access refused with this oinkcode'};
 665                 return undef;
 666         } elsif (!$return->is_success()) {
 667                 $errormessage = $Lang::tr{'could not download latest updates'};
 668                 return undef;
 669         }
 670
 671         return $return;
 672
 673 }