scripts / DynDNS

Commit fb75de8dcb1073e9b3e07a4ee733ba55a3280121

Authored by Frederik Lindenaar
1 parent acf4bc99

Implemented authentication for list operator 

(closes #7)
Inline Side-by-side
Showing 2 changed files with 9 additions and 2 deletions
dyndns.cfg.dist
  View file @fb75de8
... ... @@ -26,6 +26,8 @@
26 26 # hours, weeks or seconds. format: [0-9]+[mhws]?
27 27  
28 28 # Authentication Settings
  29 +#domain_list_key = off # List operation, 'off' to disable, '' to always
  30 + # allow and other values to enable with secret
29 31 #auth_mode = remote # either 'static', 'remote' or 'both'
30 32 #static_signer = # required for AuthMode 'static' or 'both'
31 33 #static_key = # required for AuthMode 'static' or 'both'
... ...
dyndns.pl
  View file @fb75de8
... ... @@ -41,6 +41,8 @@ my @DNSDomain = ( '?', '!', 0 ); # DNS Domain to support, match hostname with:
41 41 my $ExpandCNAMEs = 1; # CNAME levels to expand (0 to disable)
42 42 my $AllowDebugKey = 'off'; # Debuging, 'off' to disable, '' for always on
43 43 # and other values to enable with debug= param.
  44 +my $DomainListKey = 'off'; # List operation, 'off' to disable, '' to always
  45 + # allow and other values to enable with secret
44 46 my $AuthMode = 'remote'; # either 'static', 'remote' or 'both'
45 47 my $StaticSigner = ''; # required for AuthMode 'static' or 'both'
46 48 my $StaticKey = ''; # required for AuthMode 'static' or 'both'
... ... @@ -133,7 +135,6 @@ my $CE = 'Configuration Error';
133 135 my $PE = 'Required parameter missing';
134 136 sub fail($$;$) {
135 137 my ($errormsg, $debugmsg, $exitcode) = @_;
136   - print $debug . "\n";
137 138 print $cgi->header(-status=>$exitcode || 503, -type=>'text/plain'),
138 139 "ERROR - $errormsg" . ($debug ? ": $debugmsg\n" : "\n");
139 140 exit 0;
... ... @@ -323,6 +324,10 @@ sub handle_list($$$$) {
323 324 my ($mode, $host, $dnsdomain, $debug) = @_;
324 325 my $title = "DynDNS Updater - $dnsdomain";
325 326  
  327 + fail("Operation not allowed", ($DomainListKey eq 'off') ? "List is disabled"
  328 + : "No/incorrect authentication information provided", 403)
  329 + if ($DomainListKey eq 'off') || (($DomainListKey cmp '') && ($DomainListKey cmp $cgi->param('secret')));
  330 +
326 331 print $cgi->header(-status=>200),
327 332 $cgi->start_html(-title => $title),
328 333 $cgi->h1($title);
... ... @@ -354,7 +359,7 @@ if ($ConfigFile cmp 'ignore') {
354 359 $CFGFile =~ s/(\.pl)?$/.cfg/;
355 360 if (open (CONFIG, $CFGFile)) {
356 361 my %CONFIG = (
357   - allow_debug_key => \$AllowDebugKey,
  362 + allow_debug_key => \$AllowDebugKey, domain_list_key => \$DomainListKey,
358 363 dns_server => \$DNSServer, dns_domain => \@DNSDomain,
359 364 expand_cnames => \$ExpandCNAMEs, auth_mode => \$AuthMode,
360 365 static_signer => \$StaticSigner, static_key => \$StaticKey,
... ...