httpd/cgi-bin/traceroute


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#!/usr/local/bin/perl
#
# traceroute: a CGI script that provides a Web interface to traceroute
#
# Copyright 1998 Gerald Oskoboiny <gerald@w3.org>
#
# This source code is available under the license at:
#     http://www.w3.org/Consortium/Legal/copyright-software
#
# $Id: traceroute,v 1.3 2001-12-21 23:39:27 gerald Exp $
#

print <<"EOF";
Content-Type: text/html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>

<head>
  <title>service discontinued</title>
</head>

<body>

<p>
  Sorry, the traceroute service that used to be here has been turned off due to
  abuse. There are a number of other <a
  href="http://www.google.com/search?q=traceroute">traceroute gateways</a>
  online, please use one of those instead. (if you are specifically interested
  in the route from MIT, see <a
  href="http://jis.mit.edu:8001/cgi-bin/traceroute">TraceRoute from MIT</a>.)
</p>

<hr>
<address>
<a href="http://www.w3.org/People/Gerald/">Gerald Oskoboiny</a><br>
\$Date: 2001-12-21 23:39:27 $ \
</address>

</body>
EOF

exit;	# turned off due to abuse; the real script follows:

$| = 1;

# accept either traceroute/foo or traceroute?foo; default to REMOTE_ADDR
# if nothing else is specified
$addr = $ENV{PATH_INFO} || $ENV{QUERY_STRING} || $ENV{REMOTE_ADDR};

$addr =~ tr/+/ /;
$addr =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/eg;
$addr =~ s,^addr=,,;
$addr =~ s/[^A-Za-z0-9\.-]//g;		# for security

print <<"EOF";
Content-Type: text/html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>

<head>
  <title>Traceroute from validator.w3.org to $addr</title>
  <link rev="made" href="mailto:gerald\@w3.org">
</head>

<body bgcolor="#FFFFFF" text="#000000" link="#0000ee" vlink="#551a8b">

<p>
  Here is the result of a traceroute from <code>validator.w3.org</code>
  to <code>$addr</code>:
</p>

<form action="/traceroute">
  <input type=text name=addr size=40 value="$addr">
  <input type=submit value="Traceroute">
  <input type=reset>
</form>

<pre>
EOF

open( TRACEROUTE, "/usr/sbin/traceroute $addr | " ) ||
    die "couldn't open pipe to traceroute! $!";

while (<TRACEROUTE>) {
    chomp;
    s/\&/\&amp;/g;
    s/\</\&lt;/g;
    print "$_\n";
}
close( TRACEROUTE ) || die "couldn't close pipe to traceroute! $!";

print <<"EOF";
</pre>

<hr>
<address>
<a href="http://www.w3.org/People/Gerald/">Gerald Oskoboiny</a><br>
\$Date: 2001-12-21 23:39:27 $ \
</address>

EOF

exit;