config/cfgroot/header.pl

   1 # SmoothWall CGIs
   2 #
   3 # This code is distributed under the terms of the GPL
   4 #
   5 # (c) The SmoothWall Team
   6 # Copyright (C) 2002 Alex Hudson - getcgihash() rewrite
   7 # Copyright (C) 2002 Bob Grant <bob@cache.ucr.edu> - validmac()
   8 # Copyright (c) 2002/04/13 Steve Bootes - add alias section, helper functions
   9 # Copyright (c) 2002/08/23 Mark Wormgoor <mark@wormgoor.com> validfqdn()
  10 # Copyright (c) 2003/09/11 Darren Critchley <darrenc@telus.net> srtarray()
  11 #
  12 package Header;
  13
  14 use CGI();
  15 use File::Basename;
  16 use HTML::Entities();
  17 use Socket;
  18 use Time::Local;
  19
  20 our %color = ();
  21 &General::readhash("/srv/web/ipfire/html/themes/ipfire/include/colors.txt", \%color);
  22
  23 $|=1; # line buffering
  24
  25 $Header::revision = 'final';
  26 $Header::swroot = '/var/ipfire';
  27 $Header::graphdir='/srv/web/ipfire/html/graphs';
  28 $Header::pagecolour = '#ffffff';
  29 $Header::bordercolour = '#363636';
  30 $Header::table1colour = '#f5f5f5';
  31 $Header::table2colour = '#fafafa';
  32 $Header::colourred = '#993333';
  33 $Header::colourorange = '#FF9933';
  34 $Header::colouryellow = '#FFFF00';
  35 $Header::colourgreen = '#339933';
  36 $Header::colourblue = '#333399';
  37 $Header::colourovpn = '#339999';
  38 $Header::colourfw = '#000000';
  39 $Header::colourvpn = '#990099';
  40 $Header::colourerr = '#FF0000';
  41 $Header::viewsize = 150;
  42 $Header::errormessage = '';
  43 $Header::extraHead = <<END
  44 <style>
  45         .color20 {
  46                 background-color: $color{'color20'};
  47         }
  48         .color22 {
  49                 background-color: $color{'color22'};
  50         }
  51         .colouryellow {
  52                 background-color: $Header::colouryellow;
  53         }
  54         .orange {
  55                 background-color: orange;
  56         }
  57         .red {
  58                 background-color: red;
  59         }
  60         .table1colour {
  61                 background-color: $Header::table1colour;
  62         }
  63         .table2colour {
  64                 background-color: $Header::table2colour;
  65         }
  66         .percent-box {
  67                 border-style: solid;
  68                 border-width: 1px;
  69                 border-color: #a0a0a0;
  70                 width: 100px;
  71                 height: 10px;
  72         }
  73         .percent-bar {
  74                 background-color: #a0a0a0;
  75                 border-style: solid;
  76                 border-width: 1px;
  77                 border-color: #e2e2e2;
  78         }
  79         .percent-space {
  80                 background-color: #e2e2e2;
  81                 border-style: solid;
  82                 border-width: 1px;
  83                 border-color: #e2e2e2;
  84         }
  85 </style>
  86 END
  87 ;
  88 my %menuhash = ();
  89 my $menu = \%menuhash;
  90 %settings = ();
  91 %ethsettings = ();
  92 %pppsettings = ();
  93 my @URI = split('\?', $ENV{'REQUEST_URI'});
  94
  95 ### Make sure this is an SSL request
  96 if ($ENV{'SERVER_ADDR'} && $ENV{'HTTPS'} ne 'on') {
  97     print "Status: 302 Moved\r\n";
  98     print "Location: https://$ENV{'SERVER_ADDR'}:444/$ENV{'PATH_INFO'}\r\n\r\n";
  99     exit 0;
 100 }
 101
 102 ### Initialize environment
 103 &General::readhash("${swroot}/main/settings", \%settings);
 104 &General::readhash("${swroot}/ethernet/settings", \%ethsettings);
 105 &General::readhash("${swroot}/ppp/settings", \%pppsettings);
 106 $hostname = $settings{'HOSTNAME'};
 107 $hostnameintitle = 0;
 108
 109 ### Initialize language
 110 require "${swroot}/lang.pl";
 111 $language = &Lang::FindWebLanguage($settings{"LANGUAGE"});
 112
 113 ### Read English Files
 114 if ( -d "/var/ipfire/langs/en/" ) {
 115     opendir(DIR, "/var/ipfire/langs/en/");
 116     @names = readdir(DIR) or die "Cannot Read Directory: $!\n";
 117     foreach $name(@names) {
 118         next if ($name eq ".");
 119         next if ($name eq "..");
 120         next if (!($name =~ /\.pl$/));
 121         require "${swroot}/langs/en/${name}";
 122     };
 123 };
 124
 125
 126 ### Enable Language Files
 127 if ( -d "/var/ipfire/langs/${language}/" ) {
 128     opendir(DIR, "/var/ipfire/langs/${language}/");
 129     @names = readdir(DIR) or die "Cannot Read Directory: $!\n";
 130     foreach $name(@names) {
 131         next if ($name eq ".");
 132         next if ($name eq "..");
 133         next if (!($name =~ /\.pl$/));
 134         require "${swroot}/langs/${language}/${name}";
 135     };
 136 };
 137
 138 ### Initialize user manual
 139 my %manualpages = ();
 140 &_read_manualpage_hash("${General::swroot}/main/manualpages");
 141
 142 ### Load selected language and theme functions
 143 require "${swroot}/langs/en.pl";
 144 require "${swroot}/langs/${language}.pl";
 145 eval `/bin/cat /srv/web/ipfire/html/themes/ipfire/include/functions.pl`;
 146
 147 sub green_used() {
 148     if ($ethsettings{'GREEN_DEV'} && $ethsettings{'GREEN_DEV'} ne "") {
 149         return 1;
 150     }
 151
 152     return 0;
 153 }
 154
 155 sub orange_used () {
 156     if ($ethsettings{'CONFIG_TYPE'} =~ /^[24]$/) {
 157         return 1;
 158     }
 159     return 0;
 160 }
 161
 162 sub blue_used () {
 163     if ($ethsettings{'CONFIG_TYPE'} =~ /^[34]$/) {
 164         return 1;
 165     }
 166     return 0;
 167 }
 168
 169 sub is_modem {
 170     if ($ethsettings{'CONFIG_TYPE'} =~ /^[0]$/) {
 171         return 1;
 172     }
 173     return 0;
 174 }
 175
 176 ### Initialize menu
 177 sub genmenu {
 178
 179     my %subsystemhash = ();
 180     my $subsystem = \%subsystemhash;
 181
 182     my %substatushash = ();
 183     my $substatus = \%substatushash;
 184
 185     my %subnetworkhash = ();
 186     my $subnetwork = \%subnetworkhash;
 187
 188     my %subserviceshash = ();
 189     my $subservices = \%subserviceshash;
 190
 191     my %subfirewallhash = ();
 192     my $subfirewall = \%subfirewallhash;
 193
 194     my %subipfirehash = ();
 195     my $subipfire = \%subipfirehash;
 196
 197     my %sublogshash = ();
 198     my $sublogs = \%sublogshash;
 199
 200   if ( -e "/var/ipfire/main/gpl_accepted") {
 201
 202     eval `/bin/cat /var/ipfire/menu.d/*.menu`;
 203     eval `/bin/cat /var/ipfire/menu.d/*.main`;
 204
 205     if (! blue_used()) {
 206         $menu->{'05.firewall'}{'subMenu'}->{'60.wireless'}{'enabled'} = 0;
 207     }
 208     if ( $ethsettings{'CONFIG_TYPE'} =~ /^(1|2|3|4)$/ && $ethsettings{'RED_TYPE'} eq 'STATIC' ) {
 209         $menu->{'03.network'}{'subMenu'}->{'70.aliases'}{'enabled'} = 1;
 210     }
 211
 212     if (&General::RedIsWireless()) {
 213         $menu->{'01.system'}{'subMenu'}->{'21.wlan'}{'enabled'} = 1;
 214     }
 215
 216     if ( $ethsettings{'RED_TYPE'} eq "PPPOE" && $pppsettings{'MONPORT'} ne "" ) {
 217         $menu->{'02.status'}{'subMenu'}->{'74.modem-status'}{'enabled'} = 1;
 218     }
 219
 220         # Disable the Dialup/PPPoE menu item when the RED interface is in IP mode
 221         # (the "Network" module is loaded by general-functions.pl)
 222         if(&Network::is_red_mode_ip()) {
 223                 $menu->{'01.system'}{'subMenu'}->{'20.dialup'}{'enabled'} = 0;
 224         }
 225
 226     # Disbale unusable things in cloud environments
 227     if (&General::running_in_cloud()) {
 228         $menu->{'03.network'}{'subMenu'}->{'30.dhcp'}{'enabled'} = 0;
 229         $menu->{'03.network'}{'subMenu'}->{'80.macadressmenu'}{'enabled'} = 0;
 230         $menu->{'03.network'}{'subMenu'}->{'90.wakeonlan'}{'enabled'} = 0;
 231     }
 232   }
 233 }
 234
 235 sub showhttpheaders
 236 {
 237         print "Cache-control: private\n";
 238         print "Content-type: text/html; charset=UTF-8\n\n";
 239 }
 240
 241 sub is_menu_visible($) {
 242     my $link = shift;
 243     $link =~ s#\?.*$##;
 244     return (-e $ENV{'DOCUMENT_ROOT'}."/../$link");
 245 }
 246
 247
 248 sub getlink($) {
 249     my $root = shift;
 250     if (! $root->{'enabled'}) {
 251         return '';
 252     }
 253     if ($root->{'uri'} !~ /^$/) {
 254         my $vars = '';
 255         if ($root->{'vars'} !~ /^$/) {
 256             $vars = '?'. $root->{'vars'};
 257         }
 258         if (! is_menu_visible($root->{'uri'})) {
 259             return '';
 260         }
 261         return $root->{'uri'}.$vars;
 262     }
 263     my $submenus = $root->{'subMenu'};
 264     if (! $submenus) {
 265         return '';
 266     }
 267     foreach my $item (sort keys %$submenus) {
 268         my $link = getlink($submenus->{$item});
 269         if ($link ne '') {
 270             return $link;
 271         }
 272     }
 273     return '';
 274 }
 275
 276
 277 sub compare_url($) {
 278     my $conf = shift;
 279
 280     my $uri = $conf->{'uri'};
 281     my $vars = $conf->{'vars'};
 282     my $novars = $conf->{'novars'};
 283
 284     if ($uri eq '') {
 285         return 0;
 286     }
 287     if ($uri ne $URI[0]) {
 288         return 0;
 289     }
 290     if ($novars) {
 291         if ($URI[1] !~ /^$/) {
 292             return 0;
 293         }
 294     }
 295     if (! $vars) {
 296         return 1;
 297     }
 298     return ($URI[1] eq $vars);
 299 }
 300
 301
 302 sub gettitle($) {
 303     my $root = shift;
 304
 305     if (! $root) {
 306         return '';
 307     }
 308     foreach my $item (sort keys %$root) {
 309         my $val = $root->{$item};
 310         if (compare_url($val)) {
 311             $val->{'selected'} = 1;
 312             if ($val->{'title'} !~ /^$/) {
 313                 return $val->{'title'};
 314             }
 315             return 'EMPTY TITLE';
 316         }
 317
 318         my $title = gettitle($val->{'subMenu'});
 319         if ($title ne '') {
 320             $val->{'selected'} = 1;
 321             return $title;
 322         }
 323     }
 324     return '';
 325 }
 326
 327 sub getcgihash {
 328         my ($hash, $params) = @_;
 329         my $cgi = CGI->new ();
 330         $hash->{'__CGI__'} = $cgi;
 331         return if ($ENV{'REQUEST_METHOD'} ne 'POST');
 332         if (!$params->{'wantfile'}) {
 333                 $CGI::DISABLE_UPLOADS = 1;
 334                 $CGI::POST_MAX        = 1024 * 1024;
 335         } else {
 336                 $CGI::POST_MAX = 10 * 1024 * 1024;
 337         }
 338
 339         $cgi->referer() =~ m/^https?\:\/\/([^\/]+)/;
 340         my $referer = $1;
 341         $cgi->url() =~ m/^https?\:\/\/([^\/]+)/;
 342         my $servername = $1;
 343         return if ($referer ne $servername);
 344
 345         ### Modified for getting multi-vars, split by |
 346         %temp = $cgi->Vars();
 347         foreach my $key (keys %temp) {
 348                 $hash->{$key} = $temp{$key};
 349                 $hash->{$key} =~ s/\0/|/g;
 350                 $hash->{$key} =~ s/^\s*(.*?)\s*$/$1/;
 351         }
 352
 353         if (($params->{'wantfile'})&&($params->{'filevar'})) {
 354                 $hash->{$params->{'filevar'}} = $cgi->upload
 355                                                 ($params->{'filevar'});
 356         }
 357         return;
 358 }
 359
 360 sub escape($) {
 361         my $s = shift;
 362         return HTML::Entities::encode_entities($s);
 363 }
 364
 365 sub cleanhtml {
 366         my $outstring =$_[0];
 367         $outstring =~ tr/,/ / if not defined $_[1] or $_[1] ne 'y';
 368
 369         return escape($outstring);
 370 }
 371
 372 sub connectionstatus
 373 {
 374     my %pppsettings = ();
 375     my %netsettings = ();
 376     my $iface='';
 377
 378     $pppsettings{'PROFILENAME'} = 'None';
 379     &General::readhash("${General::swroot}/ppp/settings", \%pppsettings);
 380     &General::readhash("${General::swroot}/ethernet/settings", \%netsettings);
 381
 382     my $profileused='';
 383     unless ( $netsettings{'RED_TYPE'} =~ /^(DHCP|STATIC)$/ ) {
 384         $profileused="- $pppsettings{'PROFILENAME'}";
 385     }
 386
 387     my ($timestr, $connstate);
 388
 389                 my $connstate = "<span>$Lang::tr{'idle'} $profileused</span>";
 390
 391                 if (-e "${General::swroot}/red/active") {
 392                         $timestr = &General::age("${General::swroot}/red/active");
 393                         $connstate = "<span>$Lang::tr{'connected'} - (<span>$timestr</span>) $profileused</span>";
 394                 } else {
 395                   if ((open(KEEPCONNECTED, "</var/ipfire/red/keepconnected") == false) && ($pppsettings{'RECONNECTION'} eq "persistent")) {
 396                                 $connstate = "<span>$Lang::tr{'connection closed'} $profileused</span>";
 397       } elsif (($pppsettings{'RECONNECTION'} eq "dialondemand") && ( -e "${General::swroot}/red/dial-on-demand")) {
 398                                 $connstate = "<span>$Lang::tr{'dod waiting'} $profileused</span>";
 399                         } else {
 400                                 $connstate = "<span>$Lang::tr{'connecting'} $profileused</span>" if (system("ps -ef | grep -q '[p]ppd'"));
 401                         }
 402                 }
 403
 404     return $connstate;
 405 }
 406
 407 sub CheckSortOrder {
 408 #Sorting of allocated leases
 409     if ($ENV{'QUERY_STRING'} =~ /^IPADDR|^ETHER|^HOSTNAME|^ENDTIME/ ) {
 410         my $newsort=$ENV{'QUERY_STRING'};
 411         &General::readhash("${swroot}/dhcp/settings", \%dhcpsettings);
 412         $act=$dhcpsettings{'SORT_LEASELIST'};
 413         #Reverse actual ?
 414         if ($act =~ $newsort) {
 415             if ($act !~ 'Rev') {$Rev='Rev'};
 416             $newsort.=$Rev
 417         };
 418
 419         $dhcpsettings{'SORT_LEASELIST'}=$newsort;
 420         &General::writehash("${swroot}/dhcp/settings", \%dhcpsettings);
 421         $dhcpsettings{'ACTION'} = 'SORT';  # avoid the next test "First lauch"
 422     }
 423
 424 }
 425
 426 sub PrintActualLeases
 427 {
 428     &openbox('100%', 'left', $Lang::tr{'current dynamic leases'});
 429     print <<END
 430 <table width='100%' class='tbl'>
 431 <tr>
 432 <th width='25%' align='center'><a href='$ENV{'SCRIPT_NAME'}?IPADDR'><b>$Lang::tr{'ip address'}</b></a></th>
 433 <th width='25%' align='center'><a href='$ENV{'SCRIPT_NAME'}?ETHER'><b>$Lang::tr{'mac address'}</b></a></th>
 434 <th width='20%' align='center'><a href='$ENV{'SCRIPT_NAME'}?HOSTNAME'><b>$Lang::tr{'hostname'}</b></a></th>
 435 <th width='25%' align='center'><a href='$ENV{'SCRIPT_NAME'}?ENDTIME'><b>$Lang::tr{'lease expires'} (local time d/m/y)</b></a></th>
 436 <th width='5%' align='center'><b>$Lang::tr{'dhcp make fixed lease'}</b></th>
 437 </tr>
 438 END
 439 ;
 440
 441     open(LEASES,"/var/state/dhcp/dhcpd.leases") or die "Can't open dhcpd.leases";
 442         while (my $line = <LEASES>) {
 443                 next if( $line =~ /^\s*#/ );
 444                 chomp($line);
 445                 @temp = split (' ', $line);
 446
 447                 if ($line =~ /^\s*lease/) {
 448                         $ip = $temp[1];
 449                         #All field are not necessarily read. Clear everything
 450                         $endtime = 0;
 451                         $endtime_print = "";
 452                         $expired = 0;
 453                         $ether = "";
 454                         $hostname = "";
 455                 }
 456
 457                 if ($line =~ /^\s*ends/) {
 458                         $line =~ /(\d+)\/(\d+)\/(\d+) (\d+):(\d+):(\d+)/;
 459                         $endtime = timegm($6, $5, $4, $3, $2 - 1, $1 - 1900);
 460                         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday, $dst) = localtime($endtime);
 461                         $endtime_print = sprintf ("%02d/%02d/%d %02d:%02d:%02d",$mday,$mon+1,$year+1900,$hour,$min,$sec);
 462                         $expired = $endtime < time();
 463                 }
 464
 465                 if ($line =~ /^\s*hardware ethernet/) {
 466                         $ether = $temp[2];
 467                         $ether =~ s/;//g;
 468                 }
 469
 470                 if ($line =~ /^\s*client-hostname/) {
 471                         $hostname = "$temp[1] $temp[2] $temp[3]";
 472                         $hostname =~ s/\"|[;\s]+?$//g; # remove quotes, trim semicolon and white space
 473                 }
 474
 475                 if ($line eq "}") {
 476                         @record = ('IPADDR',$ip,'ENDTIME',$endtime,'ETHER',$ether,'HOSTNAME',$hostname,'endtime_print',$endtime_print,'expired',$expired);
 477                         $record = {};                                                           # create a reference to empty hash
 478                         %{$record} = @record;                                           # populate that hash with @record
 479                         $entries{$record->{'IPADDR'}} = $record;        # add this to a hash of hashes
 480                 }
 481     }
 482     close(LEASES);
 483
 484     my $id = 0;
 485     my $col = "";
 486         my $divider_printed = 0;
 487     foreach my $key (sort leasesort keys %entries) {
 488                 my $hostname = &cleanhtml($entries{$key}->{HOSTNAME},"y");
 489                 my $hostname_print = $hostname;
 490                 if($hostname_print eq "") { #print blank space if no hostname is found
 491                         $hostname_print = "&nbsp;&nbsp;&nbsp;";
 492                 }
 493
 494                 # separate active and expired leases with a horizontal line
 495                 if(($entries{$key}->{expired}) && ($divider_printed == 0)) {
 496                         $divider_printed = 1;
 497                         if ($id % 2) {
 498                                 print "<tr><td colspan='5' bgcolor='$table1colour'><hr size='1'></td></tr>\n";
 499                         } else {
 500                                 print "<tr><td colspan='5' bgcolor='$table2colour'><hr size='1'></td></tr>\n";
 501                         }
 502                         $id++;
 503                 }
 504
 505                 print "<form method='post' action='/cgi-bin/dhcp.cgi'><tr>\n";
 506                 if ($id % 2) {
 507                         $col="bgcolor='$table1colour'";
 508                 } else {
 509                         $col="bgcolor='$table2colour'";
 510                 }
 511
 512                 if($entries{$key}->{expired}) {
 513                         print <<END
 514 <td align='center' $col><input type='hidden' name='FIX_ADDR' value='$entries{$key}->{IPADDR}' /><strike><i>$entries{$key}->{IPADDR}</i></strike></td>
 515 <td align='center' $col><input type='hidden' name='FIX_MAC' value='$entries{$key}->{ETHER}' /><strike><i>$entries{$key}->{ETHER}</i></strike></td>
 516 <td align='center' $col><input type='hidden' name='FIX_REMARK' value='$hostname' /><strike><i>$hostname_print<i><strike></td>
 517 <td align='center' $col><input type='hidden' name='FIX_ENABLED' value='on' /><strike><i>$entries{$key}->{endtime_print}</i></strike></td>
 518 END
 519 ;
 520                 } else {
 521                         print <<END
 522 <td align='center' $col><input type='hidden' name='FIX_ADDR' value='$entries{$key}->{IPADDR}' />$entries{$key}->{IPADDR}</td>
 523 <td align='center' $col><input type='hidden' name='FIX_MAC' value='$entries{$key}->{ETHER}' />$entries{$key}->{ETHER}</td>
 524 <td align='center' $col><input type='hidden' name='FIX_REMARK' value='$hostname' />$hostname_print</td>
 525 <td align='center' $col><input type='hidden' name='FIX_ENABLED' value='on' />$entries{$key}->{endtime_print}</td>
 526 END
 527 ;
 528                 }
 529
 530                 print <<END
 531 <td $col><input type='hidden' name='ACTION' value='$Lang::tr{'add'}2' /><input type='submit' name='SUBMIT' value='$Lang::tr{'add'}' /></td>
 532 </tr></form>
 533 END
 534 ;
 535                 $id++;
 536     }
 537
 538     print "</table>";
 539     &closebox();
 540 }
 541
 542
 543 # This sub is used during display of actives leases
 544 sub leasesort {
 545         if (rindex ($dhcpsettings{'SORT_LEASELIST'},'Rev') != -1)
 546         {
 547                 $qs=substr ($dhcpsettings{'SORT_LEASELIST'},0,length($dhcpsettings{'SORT_LEASELIST'})-3);
 548                 if ($qs eq 'IPADDR') {
 549                         @a = split(/\./,$entries{$a}->{$qs});
 550                         @b = split(/\./,$entries{$b}->{$qs});
 551                         $entries{$a}->{'expired'} <=> $entries{$b}->{'expired'} || # always sort by expiration first
 552                         ($b[0]<=>$a[0]) ||
 553                         ($b[1]<=>$a[1]) ||
 554                         ($b[2]<=>$a[2]) ||
 555                         ($b[3]<=>$a[3]);
 556                 } else {
 557                         $entries{$a}->{'expired'} <=> $entries{$b}->{'expired'} ||
 558                         $entries{$b}->{$qs} cmp $entries{$a}->{$qs};
 559                 }
 560         }
 561         else #not reverse
 562         {
 563                 $qs=$dhcpsettings{'SORT_LEASELIST'};
 564                 if ($qs eq 'IPADDR') {
 565                         @a = split(/\./,$entries{$a}->{$qs});
 566                         @b = split(/\./,$entries{$b}->{$qs});
 567                         $entries{$a}->{'expired'} <=> $entries{$b}->{'expired'} ||
 568                         ($a[0]<=>$b[0]) ||
 569                         ($a[1]<=>$b[1]) ||
 570                         ($a[2]<=>$b[2]) ||
 571                         ($a[3]<=>$b[3]);
 572                 } else {
 573                         $entries{$a}->{'expired'} <=> $entries{$b}->{'expired'} ||
 574                         $entries{$a}->{$qs} cmp $entries{$b}->{$qs};
 575                 }
 576         }
 577 }
 578
 579 sub colorize {
 580         my $string =  $_[0];
 581         my @array = split(/\//,$string);
 582         my $string2 = $array[0];
 583
 584         if ( $string eq "*" or $string eq "" ){
 585                 return $string;
 586         } elsif ( $string =~ "ipsec" ){
 587                 return "<font color='".${Header::colourvpn}."'>".$string."</font>";
 588         } elsif ( $string =~ "tun" ){
 589                 return "<font color='".${Header::colourovpn}."'>".$string."</font>";
 590         } elsif ( $string =~ "lo" or $string =~ "127.0.0.0" ){
 591                 return "<font color='".${Header::colourfw}."'>".$string."</font>";
 592         } elsif ( $string =~ $ethsettings{'GREEN_DEV'} or &General::IpInSubnet($string2,$ethsettings{'GREEN_NETADDRESS'},$ethsettings{'GREEN_NETMASK'}) ){
 593                 return "<font color='".${Header::colourgreen}."'>".$string."</font>";
 594         } elsif (  $string =~ "ppp0" or $string =~ $ethsettings{'RED_DEV'} or $string =~ "0.0.0.0" or $string =~ $ethsettings{'RED_ADDRESS'} ){
 595                 return "<font color='".${Header::colourred}."'>".$string."</font>";
 596         } elsif ( $ethsettings{'CONFIG_TYPE'}>1 and ( $string =~ $ethsettings{'BLUE_DEV'} or &General::IpInSubnet($string2,$ethsettings{'BLUE_NETADDRESS'},$ethsettings{'BLUE_NETMASK'}) )){
 597                 return "<font color='".${Header::colourblue}."'>".$string."</font>";
 598         } elsif ( $ethsettings{'CONFIG_TYPE'}>2 and ( $string =~ $ethsettings{'ORANGE_DEV'} or &General::IpInSubnet($string2,$ethsettings{'ORANGE_NETADDRESS'},$ethsettings{'ORANGE_NETMASK'}) )){
 599                 return "<font color='".${Header::colourorange}."'>".$string."</font>";
 600         } else {
 601                 return $string;
 602         }
 603 }
 604
 605 # Get user manual URL for a configuration page inside the "/cgi-bin/"
 606 # (reads current page from the environment variables unless defined)
 607 # Returns empty if no URL is available
 608 sub get_manualpage_url() {
 609         my ($cgifile) = @_;
 610         $cgifile //= substr($ENV{'SCRIPT_NAME'}, 9); # remove fixed "/cgi-bin/" path
 611
 612         # Ensure base url is configured
 613         return unless($manualpages{'BASE_URL'});
 614
 615         # Return URL
 616         if($cgifile && defined($manualpages{$cgifile})) {
 617                 return "$manualpages{'BASE_URL'}/$manualpages{$cgifile}";
 618         }
 619
 620         # No manual page configured, return nothing
 621         return;
 622 }
 623
 624 # Private function to load a hash of configured user manual pages from file
 625 # (run check_manualpages.pl to make sure the file is correct)
 626 sub _read_manualpage_hash() {
 627         my ($filename) = @_;
 628
 629         open(my $file, "<", $filename) or return; # Fail silent
 630         while(my $line = <$file>) {
 631                 chomp($line);
 632                 next if(substr($line, 0, 1) eq '#'); # Skip comments
 633                 next if(index($line, '=', 1) == -1); # Skip incomplete lines
 634
 635                 my($left, $value) = split(/=/, $line, 2);
 636                 if($left =~ /^([[:alnum:]\/._-]+)$/) {
 637                         my $key = $1;
 638                         $manualpages{$key} = $value;
 639                 }
 640         }
 641         close($file);
 642 }
 643
 644 1; # End of package "Header"