]> git.ipfire.org Git - people/pmueller/ipfire-2.x.git/blame - html/cgi-bin/dns.cgi
projects / people / pmueller / ipfire-2.x.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
dns.cgi: Fix ID and greater than checks.
[people/pmueller/ipfire-2.x.git] / html / cgi-bin / dns.cgi
CommitLineData
e0639d80
JPT		 1#!/usr/bin/perl
2###############################################################################
3# #
4# IPFire.org - A linux based firewall #
24d7c5ef 5# Copyright (C) 2020 IPFire Development Team #
e0639d80
JPT		 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
22use strict;
24d7c5ef 23use IO::Socket;
e0639d80
JPT		 24
25# enable only the following on debugging purpose
26#use warnings;
27#use CGI::Carp 'fatalsToBrowser';
28
29require '/var/ipfire/general-functions.pl';
24d7c5ef 30require "${General::swroot}/geoip-functions.pl";
8fbb12f1 31require "${General::swroot}/ids-functions.pl";
e0639d80
JPT		 32require "${General::swroot}/lang.pl";
33require "${General::swroot}/header.pl";
34
24d7c5ef
SS		 35#workaround to suppress a warning when a variable is used only once
36my @dummy = ( ${Header::colouryellow} );
37undef (@dummy);
38
39my %cgiparams=();
40my %checked=();
41my %selected=();
e0639d80
JPT		 42my $errormessage = '';
43
24d7c5ef
SS		 44# Config file which stores the DNS settings.
45my $settings_file = "${General::swroot}/dns/settings";
46
47# File which stores the configured DNS-Servers.
48my $servers_file = "${General::swroot}/dns/servers";
49
50# Create files if the does not exist.
51unless (-f $settings_file) { system("touch $settings_file") };
52unless (-f $servers_file) { system("touch $servers_file") };
53
54# File which stores the ISP assigned DNS servers.
1434fa0d 55my @ISP_nameserver_files = ( "/var/run/dns1", "/var/run/dns2" );
24d7c5ef
SS		 56
57# File which contains the ca-certificates.
58my $ca_certs_file = "/etc/ssl/certs/ca-bundle.crt";
59
770ea81e
SS		 60# Server which is used, to determine if the whole DNS system works properly.
61my $dns_test_server = "ping.ipfire.org";
62
43140993
SS		 63my $check_servers;
64
24d7c5ef
SS		 65my %color = ();
66my %mainsettings = ();
67&General::readhash("${General::swroot}/main/settings", \%mainsettings);
68&General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color);
69
e0639d80 70&Header::showhttpheaders();
24d7c5ef 71&Header::getcgihash(\%cgiparams);
e0639d80 72
24d7c5ef
SS		 73##
74# Save general settings.
75#
76if ($cgiparams{'GENERAL'} eq $Lang::tr{'save'}) {
77 # Prevent form name from been stored in conf file.
78 delete $cgiparams{'GENERAL'};
e0639d80 79
24d7c5ef
SS		 80 # Add value for non-checked checkbox.
81 if ($cgiparams{'USE_ISP_NAMESERVERS'} ne "on") {
82 $cgiparams{'USE_ISP_NAMESERVERS'} = "off";
83 }
e0639d80 84
24d7c5ef
SS		 85 # Add value for non-checked checkbox.
86 if ($cgiparams{'ENABLE_SAFE_SEARCH'} ne "on") {
87 $cgiparams{'ENABLE_SAFE_SEARCH'} = "off";
88 }
e0639d80 89
39a6219f
SS		 90 # Check if using ISP nameservers and TLS is enabled at the same time.
91 if (($cgiparams{'USE_ISP_NAMESERVERS'} eq "on") && ($cgiparams{'PROTO'} eq "TLS")) {
92 $errormessage = $Lang::tr{'dns isp nameservers and tls not allowed'}
93 }
94
95 # Check if there was an error.
96 if ( ! $errormessage) {
719db1cd 97
39a6219f
SS		 98 # Store settings into settings file.
99 &General::writehash("$settings_file", \%cgiparams);
100
101 # Call function to handle unbound restart, etc.
102 &_handle_unbound_and_more()
103 }
24d7c5ef
SS		 104}
105
106###
107# Add / Edit entries.
108#
109if (($cgiparams{'SERVERS'} eq $Lang::tr{'save'}) || ($cgiparams{'SERVERS'} eq $Lang::tr{'update'})) {
110 # Hash to store the generic DNS settings.
111 my %settings = ();
112
113 # Read-in generic settings.
114 &General::readhash("$settings_file", \%settings);
e0639d80 115
038f962e
SS		 116 # Check if an IP-address has been given.
117 if ($cgiparams{"NAMESERVER"} eq "") {
118 $errormessage = "$Lang::tr{'dns no address given'}";
119 }
120
24d7c5ef 121 # Check if the given DNS server is valid.
038f962e 122 elsif(!&General::validip($cgiparams{"NAMESERVER"})) {
24d7c5ef
SS		 123 $errormessage = "$Lang::tr{'invalid ip'}: $cgiparams{'NAMESERVER'}";
124 }
125
126 # Check if a TLS is enabled and no TLS_HOSTNAME has benn specified.
127 elsif($settings{'PROTO'} eq "TLS") {
128 unless($cgiparams{"TLS_HOSTNAME"}) {
129 $errormessage = "$Lang::tr{'dns no tls hostname given'}";
130 } else {
131 # Check if the provided domain is valid.
132 unless(&General::validfqdn($cgiparams{"TLS_HOSTNAME"})) {
133 $errormessage = "$Lang::tr{'invalid ip or hostname'}: $cgiparams{'TLS_HOSTNAME'}";
134 }
e0639d80 135 }
24d7c5ef
SS		 136 }
137
24d7c5ef
SS		 138 # Go further if there was no error.
139 if ( ! $errormessage) {
140 # Check if a remark has been entered.
141 $cgiparams{'REMARK'} = &Header::cleanhtml($cgiparams{'REMARK'});
142
143 my %dns_servers = ();
144 my $id;
145 my $status;
146
147 # Read-in configfile.
148 &General::readhasharray($servers_file, \%dns_servers);
149
150 # Check if we should edit an existing entry and got an ID.
151 if (($cgiparams{'SERVERS'} eq $Lang::tr{'update'}) && ($cgiparams{'ID'})) {
152 # Assin the provided id.
153 $id = $cgiparams{'ID'};
154
155 # Undef the given ID.
156 undef($cgiparams{'ID'});
157
158 # Grab the configured status of the corresponding entry.
159 $status = $dns_servers{$id}[2];
160 } else {
161 # Each newly added entry automatically should be enabled.
162 $status = "enabled";
163
164 # Generate the ID for the new entry.
165 #
166 # Sort the keys by their ID and store them in an array.
167 my @keys = sort { $a <=> $b } keys %dns_servers;
168
169 # Reverse the key array.
170 my @reversed = reverse(@keys);
171
172 # Obtain the last used id.
173 my $last_id = @reversed[0];
174
175 # Increase the last id by one and use it as id for the new entry.
176 $id = ++$last_id;
177
178 # The first allowed id is 3 to keep space for
179 # possible ISP assigned DNS servers.
611587cf 180 if ($id <= "2") {
24d7c5ef
SS		 181 $id = "3";
182 }
e0639d80 183 }
24d7c5ef
SS		 184
185 # Add/Modify the entry to/in the dns_servers hash.
186 $dns_servers{$id} = ["$cgiparams{'NAMESERVER'}", "$cgiparams{'TLS_HOSTNAME'}", "$status", "$cgiparams{'REMARK'}"];
187
188 # Write the changed hash to the config file.
189 &General::writehasharray($servers_file, \%dns_servers);
719db1cd
SS		 190
191 # Call function to handle unbound restart, etc.
192 &_handle_unbound_and_more();
24d7c5ef
SS		 193 } else {
194 # Switch back to previous mode.
195 $cgiparams{'SERVERS'} = $cgiparams{'MODE'};
196 }
197###
198# Toggle enable / disable.
199#
200} elsif ($cgiparams{'SERVERS'} eq $Lang::tr{'toggle enable disable'}) {
201 my %dns_servers = ();
202
203 # Only go further, if an ID has been passed.
204 if ($cgiparams{'ID'}) {
205 # Assign the given ID.
206 my $id = $cgiparams{'ID'};
207
208 # Undef the given ID.
209 undef($cgiparams{'ID'});
210
211 # Read-in configfile.
212 &General::readhasharray($servers_file, \%dns_servers);
213
214 # Grab the configured status of the corresponding entry.
215 my $status = $dns_servers{$id}[2];
216
217 # Switch the status.
218 if ($status eq "disabled") {
219 $status = "enabled";
220 } else {
221 $status = "disabled";
e0639d80 222 }
24d7c5ef
SS		 223
224 # Modify the status of the existing entry.
225 $dns_servers{$id} = ["$dns_servers{$id}[0]", "$dns_servers{$id}[1]", "$status", "$dns_servers{$id}[3]"];
226
227 # Write the changed hash back to the config file.
228 &General::writehasharray($servers_file, \%dns_servers);
8f4bde65
SS		 229
230 # Call function to handle unbound restart, etc.
231 &_handle_unbound_and_more();
e0639d80 232 }
24d7c5ef
SS		 233
234## Remove entry from DNS servers list.
235#
236} elsif ($cgiparams{'SERVERS'} eq $Lang::tr{'remove'}) {
237 my %dns_servers = ();
238
239 # Read-in configfile.
240 &General::readhasharray($servers_file, \%dns_servers);
241
242 # Drop entry from the hash.
243 delete($dns_servers{$cgiparams{'ID'}});
244
245 # Undef the given ID.
246 undef($cgiparams{'ID'});
247
248 # Write the changed hash to the config file.
249 &General::writehasharray($servers_file, \%dns_servers);
43140993 250
8f4bde65
SS		 251 # Call function to handle unbound restart, etc.
252 &_handle_unbound_and_more();
253
43140993
SS		 254## Handle request to check the servers.
255#
256} elsif ($cgiparams{'SERVERS'} eq $Lang::tr{'dns check servers'}) {
257 $check_servers = 1;
e0639d80
JPT		 258}
259
24d7c5ef
SS		 260# Hash to store the generic DNS settings.
261my %settings = ();
262
263# Read-in general DNS settings.
264&General::readhash("$settings_file", \%settings);
265
266# Hash which contains the configured DNS servers.
267my %dns_servers = ();
268
269# Read-in config file.
270&General::readhasharray("$servers_file", \%dns_servers);
271
272&Header::openpage($Lang::tr{'dns'}, 1, '');
273
274&Header::openbigbox('100%', 'left', '', $errormessage);
275
276###
277# Error messages layout.
278#
279if ($errormessage) {
280 &Header::openbox('100%', 'left', $Lang::tr{'error messages'});
281 print "<class name='base'>$errormessage\n";
282 print "&nbsp;</class>\n";
283 &Header::closebox();
e0639d80
JPT		 284}
285
24d7c5ef
SS		 286# Handle if a nameserver should be added or edited.
287if (($cgiparams{'SERVERS'} eq "$Lang::tr{'add'}") || ($cgiparams{'SERVERS'} eq "$Lang::tr{'edit'}")) {
288 # Display the sub page.
289 &show_add_edit_nameserver();
290
291 # Close webpage.
292 &Header::closebigbox();
293 &Header::closepage();
294
295 # Finished here for the moment.
296 exit(0);
2e1432c4
JPT		 297}
298
24d7c5ef
SS		 299$cgiparams{'GENERAL'} = '';
300$cgiparams{'SERVERS'} = '';
301$cgiparams{'NAMESERVER'} = '';
302$cgiparams{'TLS_HOSTNAME'} = '';
303$cgiparams{'REMARK'} ='';
304
305$checked{'USE_ISP_NAMESERVERS'}{'off'} = '';
306$checked{'USE_ISP_NAMESERVERS'}{'on'} = '';
307$checked{'USE_ISP_NAMESERVERS'}{$settings{'USE_ISP_NAMESERVERS'}} = "checked='checked'";
308
309$checked{'ENABLE_SAFE_SEARCH'}{'off'} = '';
310$checked{'ENABLE_SAFE_SEARCH'}{'on'} = '';
311$checked{'ENABLE_SAFE_SEARCH'}{$settings{'ENABLE_SAFE_SEARCH'}} = "checked='checked'";
312
313$selected{'PROTO'}{'UDP'} = '';
314$selected{'PROTO'}{'TLS'} = '';
315$selected{'PROTO'}{'TCP'} = '';
316$selected{'PROTO'}{$settings{'PROTO'}} = "selected='selected'";
317
318$selected{'QNAME_MIN'}{'standard'} = '';
319$selected{'QNAME_MIN'}{'strict'} = '';
320$selected{'QNAME_MIN'}{$settings{'QNAME_MIN'}} = "selected='selected'";
321
322# Display nameserver and configuration sections.
323&show_nameservers();
324&show_general_dns_configuration();
325
326&Header::closebigbox();
327&Header::closepage();
328
329###
330# General DNS-Servers sektion.
331#
332sub show_general_dns_configuration () {
333 &Header::openbox('100%', 'center', "$Lang::tr{'dns configuration'}");
334
335 print <<END;
336 <form method='post' action='$ENV{'SCRIPT_NAME'}'>
337 <table width="100%">
338 <tr>
339 <td width="33%">
340 $Lang::tr{'dns use isp assigned nameservers'}
341 </td>
342
343 <td>
344 <input type="checkbox" name="USE_ISP_NAMESERVERS" $checked{'USE_ISP_NAMESERVERS'}{'on'}>
345 </td>
346 </tr>
347
348 <tr>
349 <td colspan="2">
350 <br>
351 </td>
352 </tr>
353
354 <tr>
355 <td width="33%">
356 $Lang::tr{'dns use protocol for dns queries'}
357 </td>
358
359 <td>
360 <select name="PROTO">
361 <option value="UDP" $selected{'PROTO'}{'UDP'}>UDP</option>
362 <option value="TLS" $selected{'PROTO'}{'TLS'}>TLS</option>
363 <option value="TCP" $selected{'PROTO'}{'TCP'}>TCP</option>
364 </select>
365 </td>
366 </tr>
367
368 <tr>
369 <td colspan="2">
370 <br>
371 </td>
372 </tr>
373
374 <tr>
375 <td width="33%">
376 $Lang::tr{'dns enable safe-search'}
377 </td>
378
379 <td>
380 <input type="checkbox" name="ENABLE_SAFE_SEARCH" $checked{'ENABLE_SAFE_SEARCH'}{'on'}>
381 </td>
382 </tr>
383
384 <tr>
385 <td colspan="2">
386 <br>
387 </td>
388 </tr>
389
390 <tr>
391 <td width="33%">
392 $Lang::tr{'dns mode for qname minimisation'}
393 </td>
394
395 <td>
396 <select name="QNAME_MIN">
397 <option value="standard" $selected{'QNAME_MIN'}{'standard'}>$Lang::tr{'standard'}</option>
398 <option value="strict" $selected{'QNAME_MIN'}{'strict'}>$Lang::tr{'strict'}</option>
399 </select>
400 </td>
401 </tr>
402
403 <tr>
404 <td colspan="2" align="right">
405 <input type="submit" name="GENERAL" value="$Lang::tr{'save'}">
406 </td>
407 </tr>
408 </table>
409 </form>
410END
411
e0639d80
JPT		 412 &Header::closebox();
413}
414
24d7c5ef
SS		 415###
416# Section to display the configured and used DNS servers.
417#
418sub show_nameservers () {
a969acc7 419 &Header::openbox('100%', 'center', "$Lang::tr{'dns title'}");
e0639d80 420
770ea81e
SS		 421 my $dns_status_string;
422 my $dns_status_col;
f03f3429 423 my $dns_working;
770ea81e
SS		 424
425 # Test if the DNS system is working.
426 #
427 # Simple send a request to unbound and check if it can resolve the
428 # DNS test server.
429 my $dns_status_ret = &check_nameserver("127.0.0.1", "$dns_test_server", "UDP");
430
431 if ($dns_status_ret eq "2") {
432 $dns_status_string = "$Lang::tr{'working'}";
433 $dns_status_col = "${Header::colourgreen}";
f03f3429 434 $dns_working = 1;
770ea81e 435 } else {
46cc88ed 436 $dns_status_string = "$Lang::tr{'broken'}";
770ea81e
SS		 437 $dns_status_col = "${Header::colourred}";
438 }
439
24d7c5ef 440print <<END;
770ea81e
SS		 441 <table width='100%'>
442 <tr>
443 <td>
444 <strong>$Lang::tr{'status'}:&nbsp;</strong>
445 <strong><font color='$dns_status_col'>$dns_status_string</font></strong>
446 </td>
447 </tr>
448 </table>
449
450 <br>
451
24d7c5ef
SS		 452 <table class="tbl" width='100%'>
453 <tr>
454 <td align="center">
455 <strong>$Lang::tr{'nameserver'}</strong>
456 </td>
457
458 <td align="center">
459 <strong>$Lang::tr{'country'}</strong>
460 </td>
461
462 <td align="center">
463 <strong>$Lang::tr{'rdns'}</strong>
464 </td>
465
466 <td align="center">
467 <strong>$Lang::tr{'remark'}</strong>
468 </td>
43140993
SS		 469END
470 # Check if the status should be displayed.
471 if ($check_servers) {
472print <<END
24d7c5ef
SS		 473 <td align="center">
474 <strong>$Lang::tr{'status'}</strong>
475 </td>
43140993
SS		 476END
477;
478 }
479
480print <<END
e0639d80 481
24d7c5ef
SS		 482 <td align="center" colspan="3">
483 <strong>$Lang::tr{'action'}</strong>
484 </td>
485 </tr>
830f6177 486END
43140993 487;
24d7c5ef
SS		 488
489 # Check the usage of ISP assigned nameservers is enabled.
77c7a94c
MT		 490 my $id = 1;
491
492 # Loop through the array which stores the files.
493 foreach my $file (@ISP_nameserver_files) {
494 # Grab the address of the nameserver.
97022524 495 my $address = &General::grab_address_from_file($file);
77c7a94c
MT		 496
497 # Check if we got an address.
498 if ($address) {
499 # Add the address to the hash of nameservers.
500 $dns_servers{$id} = [ "$address", "none",
501 ($settings{'USE_ISP_NAMESERVERS'} eq "on") ? "enabled" : "disabled",
502 "$Lang::tr{'dns isp assigned nameserver'}" ];
503
504 # Increase id by one.
505 $id++;
24d7c5ef
SS		 506 }
507 }
508
509 # Check some DNS servers have been configured. In this case
510 # the hash contains at least one key.
511 my $server_amount;
512 if (keys %dns_servers) {
513 # Sort the keys by their ID and store them in an array.
514 my @keys = sort { $a <=> $b } keys %dns_servers;
515
516 # Loop through all entries of the array/hash.
517 foreach my $id (@keys) {
518 # Inrease server_amount.
519 $server_amount++;
520
521 # Assign data array positions to some nice variable names.
522 my $nameserver = $dns_servers{$id}[0];
523 my $tls_hostname = $dns_servers{$id}[1];
524 my $enabled = $dns_servers{$id}[2];
525 my $remark = $dns_servers{$id}[3];
526
527 my $col = '';
528 my $toggle = '';
529 my $gif = '';
530 my $gdesc = '';
531 my $notice = "";
532
533 # Colorize columns.
534 if ($server_amount % 2) {
535 $col="bgcolor='$color{'color22'}'"; }
536 else {
537 $col="bgcolor='$color{'color20'}'";
538 }
539
540 if ($enabled eq 'enabled') {
541 $gif='on.gif'; $toggle='off'; $gdesc=$Lang::tr{'click to disable'};
542 } else {
543 $gif='off.gif'; $toggle='on'; $gdesc=$Lang::tr{'click to enable'};
544 }
545
546 my $status;
547 my $status_short;
548 my $status_message;
549 my $status_colour;
550
551 # Only grab the status if the nameserver is enabled.
43140993 552 if (($check_servers) && ($enabled eq "enabled")) {
24d7c5ef
SS		 553 $status = &check_nameserver("$nameserver", "ping.ipfire.org", "$settings{'PROTO'}", "$tls_hostname");
554 }
555
a25dcda2 556 if (!defined $status) {
24d7c5ef
SS		 557 $status_short = "$Lang::tr{'disabled'}";
558
559 # DNSSEC Not supported
560 } elsif ($status eq 0) {
561 $status_short = "$Lang::tr{'broken'}";
562 $status_message = $Lang::tr{'dnssec not supported'};
563 $status_colour = ${Header::colourred};
564
565 # DNSSEC Aware
566 } elsif ($status eq 1) {
567 $status_short = "$Lang::tr{'not validating'}";
568 $status_message = $Lang::tr{'dnssec aware'};
569 $status_colour = ${Header::colourblack};
570
571 # DNSSEC Validating
572 } elsif ($status eq 2) {
573 $status_short = "$Lang::tr{'ok'}";
574 $status_message = $Lang::tr{'dnssec validating'};
575 $status_colour = ${Header::colourgreen};
576
577 # Error
578 } else {
579 $status_short = "$Lang::tr{'error'}";
580 $status_message = $status;
581 $status_colour = ${Header::colourred};
582 }
583
584 # collect more information about name server (rDNS, GeoIP country code)
585 my $ccode = &GeoIP::lookup($nameserver);
586 my $flag_icon = &GeoIP::get_flag_icon($ccode);
587
25dda4a0
SS		 588 my $rdns;
589
590 # Only do the reverse lookup if the system is online.
f03f3429 591 if ($dns_working) {
25dda4a0
SS		 592 my $iaddr = inet_aton($nameserver);
593 $rdns = gethostbyaddr($iaddr, AF_INET);
594 }
24d7c5ef
SS		 595
596 if (!$rdns) { $rdns = $Lang::tr{'lookup failed'}; }
597
77c7a94c
MT		 598 # Mark ISP name servers as disabled
599 if ($id <= 2 && $enabled eq "disabled") {
600 $nameserver = "<del>$nameserver</del>";
601 }
602
24d7c5ef
SS		 603print <<END;
604 <tr>
605 <td align="center" $col>
606 $nameserver
607 </td>
608
609 <td align="center" $col>
610 <a href='country.cgi#$ccode'><img src="$flag_icon" border="0" alt="$ccode" title="$ccode" /></a>
611 </td>
612
613 <td align="center" $col>
614 $rdns
615 </td>
616
617 <td align="center" $col>
618 $remark
619 </td>
830f6177 620END
24d7c5ef 621;
43140993
SS		 622 # Display server status if requested.
623 if ($check_servers) {
624print <<END
625 <td align="center" $col>
626 <strong><font color="$status_colour"><abbr title="$status_message">$status_short</abbr></font></strong>
627 </td>
628END
629;
630 }
631
24d7c5ef
SS		 632 # Check if the id is greater than "2".
633 #
634 # Nameservers with an ID's of one or two are ISP assigned,
635 # and we cannot perform any actions on them, so hide the tools for
636 # them.
19602b68 637 if ($id > 2) {
24d7c5ef
SS		 638
639print <<END;
640 <td align='center' width='5%' $col>
641 <form method='post' name='frma$id' action='$ENV{'SCRIPT_NAME'}'>
642 <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' title='$gdesc' alt='$gdesc' />
643 <input type='hidden' name='ID' value='$id' />
644 <input type='hidden' name='ENABLE' value='$toggle' />
645 <input type='hidden' name='SERVERS' value='$Lang::tr{'toggle enable disable'}' />
646 </form>
647 </td>
648
649 <td align='center' width='5%' $col>
650 <form method='post' name='frmb$id' action='$ENV{'SCRIPT_NAME'}'>
651 <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' title='$Lang::tr{'edit'}' alt='$Lang::tr{'edit'}' />
652 <input type='hidden' name='ID' value='$id' />
653 <input type='hidden' name='SERVERS' value='$Lang::tr{'edit'}' />
654 </form>
655 </td>
656
657 <td align='center' width='5%' $col>
658 <form method='post' name='frmc$id' action='$ENV{'SCRIPT_NAME'}'>
659 <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}' />
660 <input type='hidden' name='ID' value='$id' />
661 <input type='hidden' name='SERVERS' value='$Lang::tr{'remove'}' />
662 </form>
663 </td>
830f6177 664END
24d7c5ef
SS		 665;
666 } else {
667 print "<td colspan='3' $col>&nbsp;</td>\n";
668 }
669
670
671 print"</tr>\n";
672
673 }
674
675 print"</table>\n";
676
677 print"<table width='100%'>\n";
678
679 # Check if the usage of the ISP nameservers is enabled and there are more than 2 servers.
19602b68 680 if (($settings{'USE_ISP_NAMESERVERS'} eq "on") && ($server_amount > 2)) {
24d7c5ef
SS		 681print <<END;
682 <tr>
683 <td class='boldbase'>&nbsp; <b>$Lang::tr{'legend'}:</b></td>
684 <td>&nbsp; <img src='/images/on.gif' alt='$Lang::tr{'click to disable'}' /></td>
685 <td class='base'>$Lang::tr{'click to disable'}</td>
686 <td>&nbsp; &nbsp; <img src='/images/off.gif' alt='$Lang::tr{'click to enable'}' /></td>
687 <td class='base'>$Lang::tr{'click to enable'}</td>
688 <td>&nbsp; &nbsp; <img src='/images/edit.gif' alt='$Lang::tr{'edit'}' /></td>
689 <td class='base'>$Lang::tr{'edit'}</td>
690 <td>&nbsp; &nbsp; <img src='/images/delete.gif' alt='$Lang::tr{'remove'}' /></td>
691 <td class='base'>$Lang::tr{'remove'}</td>
692 </tr>
830f6177 693END
24d7c5ef
SS		 694;
695 }
696print <<END;
697 <tr>
698 <form method="post" action="$ENV{'SCRIPT_NAME'}">
43140993
SS		 699 <td colspan="9" align="right">
700 <input type="submit" name="SERVERS" value="$Lang::tr{'add'}">
701 <input type="submit" name="SERVERS" value="$Lang::tr{'dns check servers'}">
702 </td>
24d7c5ef
SS		 703 </form>
704 </tr>
705 </table>
830f6177 706END
24d7c5ef
SS		 707;
708
709 } else {
710print <<END;
711 <table width="100%">
712 <tr>
713 <td colspan="6" align="center">
714 <br>$Lang::tr{'guardian no entries'}<br>
715 </td>
716 </tr>
717
718 <tr>
719 <form method="post" action="$ENV{'SCRIPT_NAME'}">
720 <td colspan="6" align="right"><input type="submit" name="SERVERS" value="$Lang::tr{'add'}"></td>
721 </form>
722 </tr>
723 </table>
724
830f6177 725END
24d7c5ef
SS		 726;
727 }
728
729 &Header::closebox();
830f6177 730}
24d7c5ef
SS		 731
732###
733# Section to display the add or edit subpage.
734#
735sub show_add_edit_nameserver() {
736 print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n";
737
738 my $buttontext = $Lang::tr{'save'};
739 my $dnssec_checked;
740 my $dot_checked;
741 if ($cgiparams{'SERVERS'} eq $Lang::tr{'edit'}) {
742 &Header::openbox('100%', 'left', $Lang::tr{'dnsforward edit an entry'});
743
744 # Update button text for upate the existing entry.
745 $buttontext = $Lang::tr{'update'};
746
747 # Add hidden input for sending ID.
748 print"<input type='hidden' name='ID' value='$cgiparams{'ID'}'>\n";
749
750 # Check if an ID has been given.
751 if ($cgiparams{'ID'}) {
752 # Assign cgiparams values.
753 $cgiparams{'NAMESERVER'} = $dns_servers{$cgiparams{'ID'}}[0];
754 $cgiparams{'TLS_HOSTNAME'} = $dns_servers{$cgiparams{'ID'}}[1];
755 $cgiparams{'REMARK'} = $dns_servers{$cgiparams{'ID'}}[3];
756 }
757 } else {
758 &Header::openbox('100%', 'left', $Lang::tr{'dnsforward add a new entry'});
759 }
760
f10fb4bf
SS		 761 my $tls_required_image;
762
763 # If the protocol is TLS, dispaly the required image.
764 if ($settings{'PROTO'} eq "TLS") {
765 $tls_required_image = "<img src='/blob.gif' alt='*'>";
766 }
767
24d7c5ef
SS		 768 # Add hidden input to store the mode.
769 print "<input type='hidden' name='MODE' value='$cgiparams{'SERVERS'}'>\n";
770
771print <<END
772 <table width='100%'>
773 <tr>
774 <td width='20%' class='base'>$Lang::tr{'ip address'}:&nbsp;<img src='/blob.gif' alt='*' /></td>
775 <td><input type='text' name='NAMESERVER' value='$cgiparams{"NAMESERVER"}' size='24' /></td>
776 </tr>
f10fb4bf
SS		 777
778
24d7c5ef 779 <tr>
f10fb4bf 780 <td width='20%' class='base'>$Lang::tr{'dns tls hostname'}:&nbsp;$tls_required_image</td>
24d7c5ef
SS		 781 <td><input type='text' name='TLS_HOSTNAME' value='$cgiparams{'TLS_HOSTNAME'}' size='24'></td>
782 </tr>
24d7c5ef 783
e0639d80 784
24d7c5ef
SS		 785 <tr>
786 <td width ='20%' class='base'>$Lang::tr{'remark'}:</td>
787 <td><input type='text' name='REMARK' value='$cgiparams{'REMARK'}' size='40' maxlength='50' /></td>
788 </tr>
789 </table>
790
791 <br>
792 <hr>
793
794 <table width='100%'>
795 <tr>
796 <td class='base' width='55%'><img src='/blob.gif' alt ='*' align='top' />&nbsp;$Lang::tr{'required field'}</td>
797 <td width='40%' align='right'>
798 <input type="submit" name="SERVERS" value="$buttontext">
799 <input type="submit" name="SERVERS" value="$Lang::tr{'back'}">
800 </td>
801 </tr>
802 </table>
e0639d80
JPT		 803END
804;
805
24d7c5ef
SS		 806 &Header::closebox();
807 print "</form>\n";
e0639d80 808
24d7c5ef
SS		 809 &Header::closebox();
810}
e0639d80 811
719db1cd
SS		 812# Private function to handle the restart of unbound and more.
813sub _handle_unbound_and_more () {
814 # Restart unbound
4caa0efc 815 system('/usr/local/bin/unboundctrl reload >/dev/null');
8fbb12f1
SS		 816
817 # Check if the IDS is running.
818 if(&IDS::ids_is_running()) {
819 # Re-generate the file which contains the DNS Server
820 # details.
821 &IDS::generate_dns_servers_file();
822
823 # Call suricatactrl to perform a reload.
824 &IDS::call_suricatactrl("restart");
825 }
719db1cd
SS		 826}
827
f36855fe
SS		 828# Check if the system is online (RED is connected).
829sub red_is_active () {
830 # Check if the "active" file is present.
831 if ( -f "${General::swroot}/red/active") {
832 # Return "1" - True.
833 return 1;
834 } else {
835 # Return nothing - False.
836 return;
837 }
838}
839
24d7c5ef
SS		 840# Function to check a given nameserver against propper work.
841sub check_nameserver($$$$) {
842 my ($nameserver, $record, $proto, $tls_hostname) = @_;
843
70187da6
SS		 844 # Check if the system is online.
845 unless (&red_is_active()) {
846 return "$Lang::tr{'system is offline'}";
847 }
848
24d7c5ef 849 # Default values.
3a5866ac 850 my @command = ("kdig", "+dnssec",
3bf804e8 851 "+bufsize=1232");
24d7c5ef
SS		 852
853 # Handle different protols.
854 if ($proto eq "TCP") {
855 # Add TCP switch to the command.
856 push(@command, "+tcp");
857
858 } elsif($proto eq "TLS") {
859 # Add TLS switch to the command and provide the
860 # path to our file which contains the ca certs.
861 push(@command, "+tls-ca=$ca_certs_file");
862
863 # Check if a TLS hostname has been provided.
864 if ($tls_hostname) {
865 # Add TLS hostname to the command.
866 push(@command, "+tls-hostname=$tls_hostname");
867 } else {
868 return "$Lang::tr{'dns no tls hostname given'}";
869 }
870 }
871
872 # Add record to the command array.
873 push(@command, "$record");
874
875 # Add nameserver to the command array.
876 push(@command, "\@$nameserver");
877
878 # Connect to STDOUT and STDERR.
879 push(@command, "2>&1");
880
881 my @output = qx(@command);
882 my $output = join("", @output);
883
884 my $status = 0;
24d7c5ef
SS		 885
886 if ($output =~ m/status: (\w+)/) {
887 $status = ($1 eq "NOERROR");
888
889 if (!$status) {
890 return -1;
891 }
984f14bd
MT		 892 } else {
893 my $warning;
894
895 while ($output =~ m/WARNING: (.*)/g) {
896 # Add the current grabbed warning to the warning string.
897 $warning .= "$1\; ";
898 }
899
900 # Return the warning string, if we grabbed at least one.
901 if ($warning) {
902 return $warning;
903 }
24d7c5ef
SS		 904 }
905
906 my @flags = ();
907 if ($output =~ m/Flags: (.*);/) {
908 @flags = split(/ /, $1);
909 }
910
911 my $aware = ($output =~ m/RRSIG/);
71471d9b 912 my $validating = (grep(/ad;/, @flags));
24d7c5ef
SS		 913
914 return $aware + $validating;
915}
Peter's tree of IPFire 2.x