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#!/usr/local/bin/perl
#----------------------------------------------------------------------
# variables you can change:
#$webster_server = "webster.lcs.mit.edu";
#$webster_port = 103;
$webster_server = "nakamichi.itlabs.umn.edu";
$webster_port = 2627;
@webster_acl=(
# ipaddress access + = allow, - = deny
'^134.84\. +',
'^128.101\. +',
'.* -'
);
#----------------------------------------------------------------------
$Gscript = $ENV{'SCRIPT_NAME'};
$Gscript = "${Gscript}.gd" if (! ($Gscript =~ /.gd$/));
$Ghost = $ENV{'SERVER_NAME'};
$Gport = $ENV{'SERVER_PORT'};
if ($0 =~ /.gpd/) {
# We have gopher+ directory...
$gplus = 1;
}
if (&check_access() eq '-') {
print "+INFO: " if ($gplus);
print "0Sorry! No access off of campus!\t$Ggw sorry\t$Ghost\t$Gport";
exit;
}
if ($#ARGV > 0) {
($index, $cmd, $query) = @ARGV;
} else {
$index = <>; chop($index);
$cmd = <>; chop($cmd);
$query = <>; chop($query);
$index = "default" if ($index eq 'Word Titles');
$index = "thesaurus" if ($index eq 'Thesaurus');
$index = "dictionary-full" if ($index eq 'Entire Dictionary');
$cmd = "SPELL" if ($cmd eq 'Exact Match');
$cmd = "PSPELL" if ($cmd eq 'Phonetic Match');
$cmd = "ENDINGS" if ($cmd eq 'Words that start with...');
}
&GopenServer($webster_server,$webster_port);
&Gsend("INDEX $index") if ($index ne 'default');
if ($cmd eq "PSPELL") { # phonetic lookup
&Gsend("SPELL $query ?");
} else {
&Gsend("$cmd $query");
}
$_ = &Grecv;
if (/^SPELLING 0/ || /^WILD 0/) {
exit;
} elsif (/^SPELLING 1/) {
print "+INFO: " if ($gplus);
print "0$query\texec:$index DEFINE $query:$Gscript\t$Ghost\t$$Gport\n";
exit;
} elsif (/^SPELLING$/ || /^MATCHS$/ || /^WILD/) {
$/ = "\200";
$buf = <GSERVER>;
$buf =~ s/[\r\200]//g;
foreach (split(/\n/,$buf)) {
/\d+\s+(\S+)/;
$words{$1}="";
}
foreach (sort keys %words) {
print "+INFO: " if ($gplus);
print "0$_\texec:$index DEFINE $_:$ENV{'SCRIPT_NAME'}.gd\t$ENV{'SERVER_NAME'}\t$ENV{'SERVER_PORT'}\n";
}
} elsif (/^DEFINITION/) {
$/ = "\200";
$buf = <GSERVER>;
$buf =~ s/[\r\200]//g;
print $buf;
} else {
exit;
}
&Gsend("QUIT");
&GcloseServer;
exit;
sub check_access {
$ipaddress = $ENV{'REMOTE_ADDR'};
return '+' if (!$ipaddress);
foreach (@webster_acl) {
($ipacl,$access)=split;
return $access if ($ipaddress =~ /$ipacl/);
}
return '-'; #default is to restrict access
}
sub GopenServer {
local($server,$port) = @_;
local($type, $name, $aliases, $len, $saddr);
$sockaddr = 'S n a4 x8';
(($name, $aliases, $type, $len, $saddr) = gethostbyname($server))
|| &Gabort("3Can't get address of: $server");
$sin = pack($sockaddr, 2, $port, $saddr);
socket(GSERVER, 2, 1, 0) || &Gabort("Can't create socket: $!");
connect(GSERVER, $sin) || &Gabort("Can't connect to server: $!");
select(GSERVER); $| = 1; select(STDOUT); $| = 1;
}
sub GcloseServer {
close(GSERVER);
}
sub Gsend {
print "send -> |$_[0]|\n" if (defined($Gdebug));
print GSERVER "$_[0]\r\n";
}
sub Grecv {
local ($_);
$_= <GSERVER>;
s/\n$//;
s/\r$//;
print "recv -> |$_|\n" if (defined($Gdebug));
return $_;
}
sub Gabort {
local ($mesg) = @_;
print "+INFO: " if ($gplus);
print "0$mesg\t\terror.host\t70\r\n";
}
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