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