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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 | ||
22 | use strict; | |
24d7c5ef | 23 | use IO::Socket; |
e0639d80 JPT |
24 | |
25 | # enable only the following on debugging purpose | |
26 | #use warnings; | |
27 | #use CGI::Carp 'fatalsToBrowser'; | |
28 | ||
29 | require '/var/ipfire/general-functions.pl'; | |
4346cb66 | 30 | require "${General::swroot}/location-functions.pl"; |
8fbb12f1 | 31 | require "${General::swroot}/ids-functions.pl"; |
e0639d80 JPT |
32 | require "${General::swroot}/lang.pl"; |
33 | require "${General::swroot}/header.pl"; | |
34 | ||
24d7c5ef SS |
35 | #workaround to suppress a warning when a variable is used only once |
36 | my @dummy = ( ${Header::colouryellow} ); | |
37 | undef (@dummy); | |
38 | ||
39 | my %cgiparams=(); | |
40 | my %checked=(); | |
41 | my %selected=(); | |
e0639d80 JPT |
42 | my $errormessage = ''; |
43 | ||
24d7c5ef SS |
44 | # Config file which stores the DNS settings. |
45 | my $settings_file = "${General::swroot}/dns/settings"; | |
46 | ||
47 | # File which stores the configured DNS-Servers. | |
48 | my $servers_file = "${General::swroot}/dns/servers"; | |
49 | ||
50 | # Create files if the does not exist. | |
51 | unless (-f $settings_file) { system("touch $settings_file") }; | |
52 | unless (-f $servers_file) { system("touch $servers_file") }; | |
53 | ||
54 | # File which stores the ISP assigned DNS servers. | |
1434fa0d | 55 | my @ISP_nameserver_files = ( "/var/run/dns1", "/var/run/dns2" ); |
24d7c5ef SS |
56 | |
57 | # File which contains the ca-certificates. | |
58 | my $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. |
61 | my $dns_test_server = "ping.ipfire.org"; | |
62 | ||
43140993 SS |
63 | my $check_servers; |
64 | ||
24d7c5ef SS |
65 | my %color = (); |
66 | my %mainsettings = (); | |
67 | &General::readhash("${General::swroot}/main/settings", \%mainsettings); | |
68 | &General::readhash("/srv/web/ipfire/html/themes/".$mainsettings{'THEME'}."/include/colors.txt", \%color); | |
69 | ||
e0639d80 | 70 | &Header::showhttpheaders(); |
24d7c5ef | 71 | &Header::getcgihash(\%cgiparams); |
e0639d80 | 72 | |
24d7c5ef SS |
73 | ## |
74 | # Save general settings. | |
75 | # | |
76 | if ($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 | # | |
109 | if (($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 | $check_servers = 1; | |
e0639d80 JPT |
258 | } |
259 | ||
24d7c5ef SS |
260 | # Hash to store the generic DNS settings. |
261 | my %settings = (); | |
262 | ||
263 | # Read-in general DNS settings. | |
264 | &General::readhash("$settings_file", \%settings); | |
265 | ||
266 | # Hash which contains the configured DNS servers. | |
267 | my %dns_servers = (); | |
268 | ||
269 | # Read-in config file. | |
270 | &General::readhasharray("$servers_file", \%dns_servers); | |
271 | ||
4346cb66 SS |
272 | # Libloc database handle |
273 | my $libloc_db_handle = &Location::Functions::init(); | |
274 | ||
24d7c5ef SS |
275 | &Header::openpage($Lang::tr{'dns'}, 1, ''); |
276 | ||
277 | &Header::openbigbox('100%', 'left', '', $errormessage); | |
278 | ||
279 | ### | |
280 | # Error messages layout. | |
281 | # | |
282 | if ($errormessage) { | |
283 | &Header::openbox('100%', 'left', $Lang::tr{'error messages'}); | |
284 | print "<class name='base'>$errormessage\n"; | |
285 | print " </class>\n"; | |
286 | &Header::closebox(); | |
e0639d80 JPT |
287 | } |
288 | ||
24d7c5ef SS |
289 | # Handle if a nameserver should be added or edited. |
290 | if (($cgiparams{'SERVERS'} eq "$Lang::tr{'add'}") || ($cgiparams{'SERVERS'} eq "$Lang::tr{'edit'}")) { | |
291 | # Display the sub page. | |
292 | &show_add_edit_nameserver(); | |
293 | ||
294 | # Close webpage. | |
295 | &Header::closebigbox(); | |
296 | &Header::closepage(); | |
297 | ||
298 | # Finished here for the moment. | |
299 | exit(0); | |
2e1432c4 JPT |
300 | } |
301 | ||
24d7c5ef SS |
302 | $cgiparams{'GENERAL'} = ''; |
303 | $cgiparams{'SERVERS'} = ''; | |
304 | $cgiparams{'NAMESERVER'} = ''; | |
305 | $cgiparams{'TLS_HOSTNAME'} = ''; | |
306 | $cgiparams{'REMARK'} =''; | |
307 | ||
308 | $checked{'USE_ISP_NAMESERVERS'}{'off'} = ''; | |
309 | $checked{'USE_ISP_NAMESERVERS'}{'on'} = ''; | |
310 | $checked{'USE_ISP_NAMESERVERS'}{$settings{'USE_ISP_NAMESERVERS'}} = "checked='checked'"; | |
311 | ||
312 | $checked{'ENABLE_SAFE_SEARCH'}{'off'} = ''; | |
313 | $checked{'ENABLE_SAFE_SEARCH'}{'on'} = ''; | |
314 | $checked{'ENABLE_SAFE_SEARCH'}{$settings{'ENABLE_SAFE_SEARCH'}} = "checked='checked'"; | |
315 | ||
316 | $selected{'PROTO'}{'UDP'} = ''; | |
317 | $selected{'PROTO'}{'TLS'} = ''; | |
318 | $selected{'PROTO'}{'TCP'} = ''; | |
319 | $selected{'PROTO'}{$settings{'PROTO'}} = "selected='selected'"; | |
320 | ||
321 | $selected{'QNAME_MIN'}{'standard'} = ''; | |
322 | $selected{'QNAME_MIN'}{'strict'} = ''; | |
323 | $selected{'QNAME_MIN'}{$settings{'QNAME_MIN'}} = "selected='selected'"; | |
324 | ||
325 | # Display nameserver and configuration sections. | |
326 | &show_nameservers(); | |
327 | &show_general_dns_configuration(); | |
328 | ||
329 | &Header::closebigbox(); | |
330 | &Header::closepage(); | |
331 | ||
332 | ### | |
333 | # General DNS-Servers sektion. | |
334 | # | |
335 | sub show_general_dns_configuration () { | |
336 | &Header::openbox('100%', 'center', "$Lang::tr{'dns configuration'}"); | |
337 | ||
338 | print <<END; | |
339 | <form method='post' action='$ENV{'SCRIPT_NAME'}'> | |
340 | <table width="100%"> | |
341 | <tr> | |
342 | <td width="33%"> | |
343 | $Lang::tr{'dns use isp assigned nameservers'} | |
344 | </td> | |
345 | ||
346 | <td> | |
347 | <input type="checkbox" name="USE_ISP_NAMESERVERS" $checked{'USE_ISP_NAMESERVERS'}{'on'}> | |
348 | </td> | |
349 | </tr> | |
350 | ||
351 | <tr> | |
352 | <td colspan="2"> | |
353 | <br> | |
354 | </td> | |
355 | </tr> | |
356 | ||
357 | <tr> | |
358 | <td width="33%"> | |
359 | $Lang::tr{'dns use protocol for dns queries'} | |
360 | </td> | |
361 | ||
362 | <td> | |
363 | <select name="PROTO"> | |
364 | <option value="UDP" $selected{'PROTO'}{'UDP'}>UDP</option> | |
365 | <option value="TLS" $selected{'PROTO'}{'TLS'}>TLS</option> | |
366 | <option value="TCP" $selected{'PROTO'}{'TCP'}>TCP</option> | |
367 | </select> | |
368 | </td> | |
369 | </tr> | |
370 | ||
371 | <tr> | |
372 | <td colspan="2"> | |
373 | <br> | |
374 | </td> | |
375 | </tr> | |
376 | ||
377 | <tr> | |
378 | <td width="33%"> | |
379 | $Lang::tr{'dns enable safe-search'} | |
380 | </td> | |
381 | ||
382 | <td> | |
383 | <input type="checkbox" name="ENABLE_SAFE_SEARCH" $checked{'ENABLE_SAFE_SEARCH'}{'on'}> | |
384 | </td> | |
385 | </tr> | |
386 | ||
387 | <tr> | |
388 | <td colspan="2"> | |
389 | <br> | |
390 | </td> | |
391 | </tr> | |
392 | ||
393 | <tr> | |
394 | <td width="33%"> | |
395 | $Lang::tr{'dns mode for qname minimisation'} | |
396 | </td> | |
397 | ||
398 | <td> | |
399 | <select name="QNAME_MIN"> | |
400 | <option value="standard" $selected{'QNAME_MIN'}{'standard'}>$Lang::tr{'standard'}</option> | |
401 | <option value="strict" $selected{'QNAME_MIN'}{'strict'}>$Lang::tr{'strict'}</option> | |
402 | </select> | |
403 | </td> | |
404 | </tr> | |
405 | ||
406 | <tr> | |
407 | <td colspan="2" align="right"> | |
408 | <input type="submit" name="GENERAL" value="$Lang::tr{'save'}"> | |
409 | </td> | |
410 | </tr> | |
411 | </table> | |
412 | </form> | |
413 | END | |
414 | ||
e0639d80 JPT |
415 | &Header::closebox(); |
416 | } | |
417 | ||
24d7c5ef SS |
418 | ### |
419 | # Section to display the configured and used DNS servers. | |
420 | # | |
421 | sub show_nameservers () { | |
a969acc7 | 422 | &Header::openbox('100%', 'center', "$Lang::tr{'dns title'}"); |
e0639d80 | 423 | |
351ad526 MT |
424 | # Determine if we are running in recursor mode |
425 | my $recursor = 0; | |
426 | my $unbound_forward = qx(unbound-control forward); | |
427 | if ($unbound_forward =~ m/^off/) { | |
428 | $recursor = 1; | |
429 | } | |
430 | ||
770ea81e SS |
431 | my $dns_status_string; |
432 | my $dns_status_col; | |
f03f3429 | 433 | my $dns_working; |
770ea81e | 434 | |
351ad526 | 435 | |
770ea81e SS |
436 | # Test if the DNS system is working. |
437 | # | |
438 | # Simple send a request to unbound and check if it can resolve the | |
439 | # DNS test server. | |
f2d2c697 | 440 | my $dns_status_ret = &check_nameserver("127.0.0.1", "$dns_test_server", "UDP", undef, "+timeout=5", "+retry=0"); |
770ea81e SS |
441 | |
442 | if ($dns_status_ret eq "2") { | |
443 | $dns_status_string = "$Lang::tr{'working'}"; | |
444 | $dns_status_col = "${Header::colourgreen}"; | |
f03f3429 | 445 | $dns_working = 1; |
770ea81e | 446 | } else { |
46cc88ed | 447 | $dns_status_string = "$Lang::tr{'broken'}"; |
770ea81e SS |
448 | $dns_status_col = "${Header::colourred}"; |
449 | } | |
450 | ||
351ad526 MT |
451 | if ($recursor) { |
452 | $dns_status_string .= " (" . $Lang::tr{'dns recursor mode'} . ")"; | |
453 | } | |
454 | ||
18e97c76 | 455 | print <<END; |
770ea81e SS |
456 | <table width='100%'> |
457 | <tr> | |
458 | <td> | |
459 | <strong>$Lang::tr{'status'}: </strong> | |
460 | <strong><font color='$dns_status_col'>$dns_status_string</font></strong> | |
461 | </td> | |
462 | </tr> | |
463 | </table> | |
18e97c76 MT |
464 | END |
465 | ||
466 | # Check the usage of ISP assigned nameservers is enabled. | |
467 | my $id = 1; | |
770ea81e | 468 | |
18e97c76 MT |
469 | # Loop through the array which stores the files. |
470 | foreach my $file (@ISP_nameserver_files) { | |
471 | # Grab the address of the nameserver. | |
472 | my $address = &General::grab_address_from_file($file); | |
473 | ||
474 | # Check if we got an address. | |
475 | if ($address) { | |
476 | # Add the address to the hash of nameservers. | |
477 | $dns_servers{$id} = [ "$address", "none", | |
478 | ($settings{'USE_ISP_NAMESERVERS'} eq "on") ? "enabled" : "disabled", | |
479 | "$Lang::tr{'dns isp assigned nameserver'}" ]; | |
480 | ||
481 | # Increase id by one. | |
482 | $id++; | |
483 | } | |
484 | } | |
485 | ||
486 | # Check some DNS servers have been configured. In this case | |
487 | # the hash contains at least one key. | |
488 | my $server_amount; | |
489 | if (keys %dns_servers) { | |
490 | # Sort the keys by their ID and store them in an array. | |
491 | my @keys = sort { $a <=> $b } keys %dns_servers; | |
492 | ||
493 | print <<END; | |
770ea81e SS |
494 | <br> |
495 | ||
24d7c5ef SS |
496 | <table class="tbl" width='100%'> |
497 | <tr> | |
498 | <td align="center"> | |
499 | <strong>$Lang::tr{'nameserver'}</strong> | |
500 | </td> | |
501 | ||
502 | <td align="center"> | |
503 | <strong>$Lang::tr{'country'}</strong> | |
504 | </td> | |
505 | ||
506 | <td align="center"> | |
507 | <strong>$Lang::tr{'rdns'}</strong> | |
508 | </td> | |
509 | ||
510 | <td align="center"> | |
511 | <strong>$Lang::tr{'remark'}</strong> | |
512 | </td> | |
43140993 | 513 | END |
18e97c76 MT |
514 | |
515 | # Check if the status should be displayed. | |
516 | if ($check_servers) { | |
517 | print <<END; | |
24d7c5ef SS |
518 | <td align="center"> |
519 | <strong>$Lang::tr{'status'}</strong> | |
520 | </td> | |
43140993 | 521 | END |
18e97c76 | 522 | } |
43140993 | 523 | |
18e97c76 | 524 | print <<END; |
e0639d80 | 525 | |
24d7c5ef SS |
526 | <td align="center" colspan="3"> |
527 | <strong>$Lang::tr{'action'}</strong> | |
528 | </td> | |
529 | </tr> | |
830f6177 | 530 | END |
24d7c5ef SS |
531 | |
532 | # Loop through all entries of the array/hash. | |
533 | foreach my $id (@keys) { | |
534 | # Inrease server_amount. | |
535 | $server_amount++; | |
536 | ||
537 | # Assign data array positions to some nice variable names. | |
538 | my $nameserver = $dns_servers{$id}[0]; | |
539 | my $tls_hostname = $dns_servers{$id}[1]; | |
540 | my $enabled = $dns_servers{$id}[2]; | |
541 | my $remark = $dns_servers{$id}[3]; | |
542 | ||
543 | my $col = ''; | |
544 | my $toggle = ''; | |
545 | my $gif = ''; | |
546 | my $gdesc = ''; | |
547 | my $notice = ""; | |
548 | ||
549 | # Colorize columns. | |
550 | if ($server_amount % 2) { | |
551 | $col="bgcolor='$color{'color22'}'"; } | |
552 | else { | |
553 | $col="bgcolor='$color{'color20'}'"; | |
554 | } | |
555 | ||
556 | if ($enabled eq 'enabled') { | |
557 | $gif='on.gif'; $toggle='off'; $gdesc=$Lang::tr{'click to disable'}; | |
558 | } else { | |
559 | $gif='off.gif'; $toggle='on'; $gdesc=$Lang::tr{'click to enable'}; | |
560 | } | |
561 | ||
562 | my $status; | |
563 | my $status_short; | |
564 | my $status_message; | |
565 | my $status_colour; | |
566 | ||
567 | # Only grab the status if the nameserver is enabled. | |
43140993 | 568 | if (($check_servers) && ($enabled eq "enabled")) { |
24d7c5ef SS |
569 | $status = &check_nameserver("$nameserver", "ping.ipfire.org", "$settings{'PROTO'}", "$tls_hostname"); |
570 | } | |
571 | ||
a25dcda2 | 572 | if (!defined $status) { |
24d7c5ef SS |
573 | $status_short = "$Lang::tr{'disabled'}"; |
574 | ||
575 | # DNSSEC Not supported | |
576 | } elsif ($status eq 0) { | |
577 | $status_short = "$Lang::tr{'broken'}"; | |
578 | $status_message = $Lang::tr{'dnssec not supported'}; | |
579 | $status_colour = ${Header::colourred}; | |
580 | ||
581 | # DNSSEC Aware | |
582 | } elsif ($status eq 1) { | |
583 | $status_short = "$Lang::tr{'not validating'}"; | |
584 | $status_message = $Lang::tr{'dnssec aware'}; | |
585 | $status_colour = ${Header::colourblack}; | |
586 | ||
587 | # DNSSEC Validating | |
588 | } elsif ($status eq 2) { | |
589 | $status_short = "$Lang::tr{'ok'}"; | |
590 | $status_message = $Lang::tr{'dnssec validating'}; | |
591 | $status_colour = ${Header::colourgreen}; | |
592 | ||
593 | # Error | |
594 | } else { | |
595 | $status_short = "$Lang::tr{'error'}"; | |
596 | $status_message = $status; | |
597 | $status_colour = ${Header::colourred}; | |
598 | } | |
599 | ||
4346cb66 SS |
600 | # collect more information about name server (rDNS, country code) |
601 | my $ccode = &Location::Functions::lookup_country_code($libloc_db_handle, $nameserver); | |
602 | my $flag_icon = &Location::Functions::get_flag_icon($ccode); | |
24d7c5ef | 603 | |
25dda4a0 SS |
604 | my $rdns; |
605 | ||
606 | # Only do the reverse lookup if the system is online. | |
f03f3429 | 607 | if ($dns_working) { |
25dda4a0 SS |
608 | my $iaddr = inet_aton($nameserver); |
609 | $rdns = gethostbyaddr($iaddr, AF_INET); | |
610 | } | |
24d7c5ef SS |
611 | |
612 | if (!$rdns) { $rdns = $Lang::tr{'lookup failed'}; } | |
613 | ||
77c7a94c MT |
614 | # Mark ISP name servers as disabled |
615 | if ($id <= 2 && $enabled eq "disabled") { | |
616 | $nameserver = "<del>$nameserver</del>"; | |
617 | } | |
618 | ||
24d7c5ef SS |
619 | print <<END; |
620 | <tr> | |
621 | <td align="center" $col> | |
622 | $nameserver | |
623 | </td> | |
624 | ||
625 | <td align="center" $col> | |
626 | <a href='country.cgi#$ccode'><img src="$flag_icon" border="0" alt="$ccode" title="$ccode" /></a> | |
627 | </td> | |
628 | ||
629 | <td align="center" $col> | |
630 | $rdns | |
631 | </td> | |
632 | ||
633 | <td align="center" $col> | |
634 | $remark | |
635 | </td> | |
830f6177 | 636 | END |
24d7c5ef | 637 | ; |
43140993 SS |
638 | # Display server status if requested. |
639 | if ($check_servers) { | |
640 | print <<END | |
641 | <td align="center" $col> | |
642 | <strong><font color="$status_colour"><abbr title="$status_message">$status_short</abbr></font></strong> | |
643 | </td> | |
644 | END | |
645 | ; | |
646 | } | |
647 | ||
24d7c5ef SS |
648 | # Check if the id is greater than "2". |
649 | # | |
650 | # Nameservers with an ID's of one or two are ISP assigned, | |
651 | # and we cannot perform any actions on them, so hide the tools for | |
652 | # them. | |
19602b68 | 653 | if ($id > 2) { |
24d7c5ef SS |
654 | |
655 | print <<END; | |
656 | <td align='center' width='5%' $col> | |
657 | <form method='post' name='frma$id' action='$ENV{'SCRIPT_NAME'}'> | |
658 | <input type='image' name='$Lang::tr{'toggle enable disable'}' src='/images/$gif' title='$gdesc' alt='$gdesc' /> | |
659 | <input type='hidden' name='ID' value='$id' /> | |
660 | <input type='hidden' name='ENABLE' value='$toggle' /> | |
661 | <input type='hidden' name='SERVERS' value='$Lang::tr{'toggle enable disable'}' /> | |
662 | </form> | |
663 | </td> | |
664 | ||
665 | <td align='center' width='5%' $col> | |
666 | <form method='post' name='frmb$id' action='$ENV{'SCRIPT_NAME'}'> | |
667 | <input type='image' name='$Lang::tr{'edit'}' src='/images/edit.gif' title='$Lang::tr{'edit'}' alt='$Lang::tr{'edit'}' /> | |
668 | <input type='hidden' name='ID' value='$id' /> | |
669 | <input type='hidden' name='SERVERS' value='$Lang::tr{'edit'}' /> | |
670 | </form> | |
671 | </td> | |
672 | ||
673 | <td align='center' width='5%' $col> | |
674 | <form method='post' name='frmc$id' action='$ENV{'SCRIPT_NAME'}'> | |
675 | <input type='image' name='$Lang::tr{'remove'}' src='/images/delete.gif' title='$Lang::tr{'remove'}' alt='$Lang::tr{'remove'}' /> | |
676 | <input type='hidden' name='ID' value='$id' /> | |
677 | <input type='hidden' name='SERVERS' value='$Lang::tr{'remove'}' /> | |
678 | </form> | |
679 | </td> | |
830f6177 | 680 | END |
24d7c5ef SS |
681 | ; |
682 | } else { | |
683 | print "<td colspan='3' $col> </td>\n"; | |
684 | } | |
685 | ||
686 | ||
687 | print"</tr>\n"; | |
688 | ||
689 | } | |
690 | ||
691 | print"</table>\n"; | |
692 | ||
693 | print"<table width='100%'>\n"; | |
694 | ||
695 | # Check if the usage of the ISP nameservers is enabled and there are more than 2 servers. | |
19602b68 | 696 | if (($settings{'USE_ISP_NAMESERVERS'} eq "on") && ($server_amount > 2)) { |
24d7c5ef SS |
697 | print <<END; |
698 | <tr> | |
699 | <td class='boldbase'> <b>$Lang::tr{'legend'}:</b></td> | |
700 | <td> <img src='/images/on.gif' alt='$Lang::tr{'click to disable'}' /></td> | |
701 | <td class='base'>$Lang::tr{'click to disable'}</td> | |
702 | <td> <img src='/images/off.gif' alt='$Lang::tr{'click to enable'}' /></td> | |
703 | <td class='base'>$Lang::tr{'click to enable'}</td> | |
704 | <td> <img src='/images/edit.gif' alt='$Lang::tr{'edit'}' /></td> | |
705 | <td class='base'>$Lang::tr{'edit'}</td> | |
706 | <td> <img src='/images/delete.gif' alt='$Lang::tr{'remove'}' /></td> | |
707 | <td class='base'>$Lang::tr{'remove'}</td> | |
708 | </tr> | |
830f6177 | 709 | END |
24d7c5ef SS |
710 | ; |
711 | } | |
712 | print <<END; | |
713 | <tr> | |
714 | <form method="post" action="$ENV{'SCRIPT_NAME'}"> | |
43140993 SS |
715 | <td colspan="9" align="right"> |
716 | <input type="submit" name="SERVERS" value="$Lang::tr{'add'}"> | |
717 | <input type="submit" name="SERVERS" value="$Lang::tr{'dns check servers'}"> | |
718 | </td> | |
24d7c5ef SS |
719 | </form> |
720 | </tr> | |
721 | </table> | |
830f6177 | 722 | END |
24d7c5ef | 723 | ; |
24d7c5ef | 724 | } else { |
351ad526 | 725 | print <<END; |
24d7c5ef | 726 | <table width="100%"> |
24d7c5ef SS |
727 | <tr> |
728 | <form method="post" action="$ENV{'SCRIPT_NAME'}"> | |
729 | <td colspan="6" align="right"><input type="submit" name="SERVERS" value="$Lang::tr{'add'}"></td> | |
730 | </form> | |
731 | </tr> | |
732 | </table> | |
830f6177 | 733 | END |
24d7c5ef SS |
734 | } |
735 | ||
736 | &Header::closebox(); | |
830f6177 | 737 | } |
24d7c5ef SS |
738 | |
739 | ### | |
740 | # Section to display the add or edit subpage. | |
741 | # | |
742 | sub show_add_edit_nameserver() { | |
743 | print "<form method='post' action='$ENV{'SCRIPT_NAME'}'>\n"; | |
744 | ||
745 | my $buttontext = $Lang::tr{'save'}; | |
746 | my $dnssec_checked; | |
747 | my $dot_checked; | |
748 | if ($cgiparams{'SERVERS'} eq $Lang::tr{'edit'}) { | |
749 | &Header::openbox('100%', 'left', $Lang::tr{'dnsforward edit an entry'}); | |
750 | ||
751 | # Update button text for upate the existing entry. | |
752 | $buttontext = $Lang::tr{'update'}; | |
753 | ||
754 | # Add hidden input for sending ID. | |
755 | print"<input type='hidden' name='ID' value='$cgiparams{'ID'}'>\n"; | |
756 | ||
757 | # Check if an ID has been given. | |
758 | if ($cgiparams{'ID'}) { | |
759 | # Assign cgiparams values. | |
760 | $cgiparams{'NAMESERVER'} = $dns_servers{$cgiparams{'ID'}}[0]; | |
761 | $cgiparams{'TLS_HOSTNAME'} = $dns_servers{$cgiparams{'ID'}}[1]; | |
762 | $cgiparams{'REMARK'} = $dns_servers{$cgiparams{'ID'}}[3]; | |
763 | } | |
764 | } else { | |
765 | &Header::openbox('100%', 'left', $Lang::tr{'dnsforward add a new entry'}); | |
766 | } | |
767 | ||
f10fb4bf SS |
768 | my $tls_required_image; |
769 | ||
770 | # If the protocol is TLS, dispaly the required image. | |
771 | if ($settings{'PROTO'} eq "TLS") { | |
772 | $tls_required_image = "<img src='/blob.gif' alt='*'>"; | |
773 | } | |
774 | ||
24d7c5ef SS |
775 | # Add hidden input to store the mode. |
776 | print "<input type='hidden' name='MODE' value='$cgiparams{'SERVERS'}'>\n"; | |
777 | ||
778 | print <<END | |
779 | <table width='100%'> | |
780 | <tr> | |
781 | <td width='20%' class='base'>$Lang::tr{'ip address'}: <img src='/blob.gif' alt='*' /></td> | |
782 | <td><input type='text' name='NAMESERVER' value='$cgiparams{"NAMESERVER"}' size='24' /></td> | |
783 | </tr> | |
f10fb4bf SS |
784 | |
785 | ||
24d7c5ef | 786 | <tr> |
f10fb4bf | 787 | <td width='20%' class='base'>$Lang::tr{'dns tls hostname'}: $tls_required_image</td> |
24d7c5ef SS |
788 | <td><input type='text' name='TLS_HOSTNAME' value='$cgiparams{'TLS_HOSTNAME'}' size='24'></td> |
789 | </tr> | |
24d7c5ef | 790 | |
e0639d80 | 791 | |
24d7c5ef SS |
792 | <tr> |
793 | <td width ='20%' class='base'>$Lang::tr{'remark'}:</td> | |
794 | <td><input type='text' name='REMARK' value='$cgiparams{'REMARK'}' size='40' maxlength='50' /></td> | |
795 | </tr> | |
796 | </table> | |
797 | ||
798 | <br> | |
799 | <hr> | |
800 | ||
801 | <table width='100%'> | |
802 | <tr> | |
803 | <td class='base' width='55%'><img src='/blob.gif' alt ='*' align='top' /> $Lang::tr{'required field'}</td> | |
804 | <td width='40%' align='right'> | |
805 | <input type="submit" name="SERVERS" value="$buttontext"> | |
806 | <input type="submit" name="SERVERS" value="$Lang::tr{'back'}"> | |
807 | </td> | |
808 | </tr> | |
809 | </table> | |
e0639d80 JPT |
810 | END |
811 | ; | |
812 | ||
24d7c5ef SS |
813 | &Header::closebox(); |
814 | print "</form>\n"; | |
e0639d80 | 815 | |
24d7c5ef SS |
816 | &Header::closebox(); |
817 | } | |
e0639d80 | 818 | |
719db1cd SS |
819 | # Private function to handle the restart of unbound and more. |
820 | sub _handle_unbound_and_more () { | |
8fbb12f1 SS |
821 | # Check if the IDS is running. |
822 | if(&IDS::ids_is_running()) { | |
823 | # Re-generate the file which contains the DNS Server | |
824 | # details. | |
825 | &IDS::generate_dns_servers_file(); | |
826 | ||
827 | # Call suricatactrl to perform a reload. | |
828 | &IDS::call_suricatactrl("restart"); | |
829 | } | |
80bed581 AF |
830 | # Restart unbound |
831 | system('/usr/local/bin/unboundctrl reload >/dev/null'); | |
719db1cd SS |
832 | } |
833 | ||
f36855fe SS |
834 | # Check if the system is online (RED is connected). |
835 | sub red_is_active () { | |
836 | # Check if the "active" file is present. | |
837 | if ( -f "${General::swroot}/red/active") { | |
838 | # Return "1" - True. | |
839 | return 1; | |
840 | } else { | |
841 | # Return nothing - False. | |
842 | return; | |
843 | } | |
844 | } | |
845 | ||
24d7c5ef | 846 | # Function to check a given nameserver against propper work. |
38f51465 MT |
847 | sub check_nameserver($$$$$) { |
848 | my ($nameserver, $record, $proto, $tls_hostname, @args) = @_; | |
24d7c5ef | 849 | |
70187da6 SS |
850 | # Check if the system is online. |
851 | unless (&red_is_active()) { | |
852 | return "$Lang::tr{'system is offline'}"; | |
853 | } | |
854 | ||
24d7c5ef | 855 | # Default values. |
3a5866ac | 856 | my @command = ("kdig", "+dnssec", |
38f51465 | 857 | "+bufsize=1232", @args); |
24d7c5ef SS |
858 | |
859 | # Handle different protols. | |
860 | if ($proto eq "TCP") { | |
861 | # Add TCP switch to the command. | |
862 | push(@command, "+tcp"); | |
863 | ||
864 | } elsif($proto eq "TLS") { | |
865 | # Add TLS switch to the command and provide the | |
866 | # path to our file which contains the ca certs. | |
867 | push(@command, "+tls-ca=$ca_certs_file"); | |
868 | ||
869 | # Check if a TLS hostname has been provided. | |
870 | if ($tls_hostname) { | |
871 | # Add TLS hostname to the command. | |
872 | push(@command, "+tls-hostname=$tls_hostname"); | |
873 | } else { | |
874 | return "$Lang::tr{'dns no tls hostname given'}"; | |
875 | } | |
876 | } | |
877 | ||
878 | # Add record to the command array. | |
879 | push(@command, "$record"); | |
880 | ||
881 | # Add nameserver to the command array. | |
882 | push(@command, "\@$nameserver"); | |
883 | ||
884 | # Connect to STDOUT and STDERR. | |
885 | push(@command, "2>&1"); | |
886 | ||
887 | my @output = qx(@command); | |
888 | my $output = join("", @output); | |
889 | ||
890 | my $status = 0; | |
24d7c5ef SS |
891 | |
892 | if ($output =~ m/status: (\w+)/) { | |
893 | $status = ($1 eq "NOERROR"); | |
894 | ||
895 | if (!$status) { | |
896 | return -1; | |
897 | } | |
984f14bd MT |
898 | } else { |
899 | my $warning; | |
900 | ||
901 | while ($output =~ m/WARNING: (.*)/g) { | |
902 | # Add the current grabbed warning to the warning string. | |
903 | $warning .= "$1\; "; | |
904 | } | |
905 | ||
906 | # Return the warning string, if we grabbed at least one. | |
907 | if ($warning) { | |
908 | return $warning; | |
909 | } | |
24d7c5ef SS |
910 | } |
911 | ||
912 | my @flags = (); | |
913 | if ($output =~ m/Flags: (.*);/) { | |
914 | @flags = split(/ /, $1); | |
915 | } | |
916 | ||
917 | my $aware = ($output =~ m/RRSIG/); | |
71471d9b | 918 | my $validating = (grep(/ad;/, @flags)); |
24d7c5ef SS |
919 | |
920 | return $aware + $validating; | |
921 | } |