/
list.cgi
executable file
·304 lines (271 loc) · 8.42 KB
/
list.cgi
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#!/usr/bin/perl
use strict;
binmode STDOUT, q(:utf8);
use CGI::Carp qw(fatalsToBrowser);
my $Timeout = 1;
my $HostsInfoFileName = q[hosts.dat];
my $LockFileName = q[.lock];
sub htescape ($) {
my $s = shift;
$s =~ s/&/&/g;
$s =~ s/</</g;
$s =~ s/>/>/g;
$s =~ s/"/"/g;
return $s;
} # htescape
sub print_sheets () {
print q[
<style>
table {
width: 90%;
}
input {
width: 100%;
}
td {
text-align: center;
}
<style>
.error {
background-color: red;
color: black;
}
.comment {
color: green;
background-color: transparent;
}
.alive {
background-color: green;
color: white;
}
.dead {
background-color: red;
color: black;
}
.registered {
}
.not-registered {
background-color: #C0C0C0;
color: black;
}
th, td {
padding-right: 1em;
}
</style>
<script>
function ping (node, addr) {
node.textContent = '...';
node.className = '';
var req = new XMLHttpRequest (addr);
req.open ("GET", "ping/" + addr, true);
req.onreadystatechange = function () {
if (req.readyState == 4) {
if (req.status < 400) {
node.textContent = req.responseText;
if (req.responseText == 'dead') {
node.className = 'dead';
} else {
node.className = 'alive';
}
} else {
node.textContent = 'FAIL (' + req.status + ')';
}
}
};
req.send (null);
}
</script>];
} # print_sheets
sub get_hosts_info () {
my $hosts_info = {};
open my $hosts_info_file, '<:utf8', $HostsInfoFileName or die "$0: $HostsInfoFileName: $!";
while (<$hosts_info_file>) {
tr/\x0D\x0A//d;
my @data = split /\t/, $_;
my $addr = shift @data;
$hosts_info->{$addr} = \@data;
}
return $hosts_info;
} # get_hosts_info
sub set_hosts_info ($) {
my $hosts_info = shift;
open my $hosts_info_file, '>:utf8', $HostsInfoFileName or die "$0: $HostsInfoFileName: $!";
print $hosts_info_file
join "\n", map {
join ("\t", $_, map {tr/\x0D\x0A\x09/ /; $_} @{$hosts_info->{$_}})
} sort {$a cmp $b} grep { $hosts_info->{$_} } keys %$hosts_info;
} # set_hosts_info
{
my $lock_file;
sub lock_hosts_info () {
use Fcntl qw(LOCK_EX);
open my $lock_file, '>', $LockFileName or die "$0: $LockFileName: $!";
flock $lock_file, LOCK_EX;
} # lock_hosts_info
}
sub commit_version (;$) {
system 'svn', 'commit', '-m', $_[0] || 'updated', 'hosts.dat';
} # commit_version
{
my $ping;
sub ping ($$) {
require Net::Ping;
$ping ||= Net::Ping->new ('external');
$ping->hires;
return $ping->ping (@_);
} # ping
}
my $path = $ENV{PATH_INFO};
if ($path =~ m#/ping/([^/]+)#) {
my $addr = $1;
print "Content-Type: text/plain; charset=us-ascii\nCache-Control: no-cache\n\n";
my ($ret, $duration) = ping ($addr, $Timeout);
if ($ret) {
printf "alive (%.2f [ms])", $duration * 1000;
} else {
print "dead";
}
exit;
} elsif ($path eq '/all' or $path eq '/all+ping' or
$path eq '/all+ping-static') {
print "Content-Type: text/html; charset=utf-8\n\n";
$| = 1;
my $ping = 1 if $path eq '/all+ping';
$ping = 2 if $path eq '/all+ping-static';
print q[<!DOCTYPE HTML><html lang=en><head>
<base href="/imase-lab/network/addr/list/">
<title>Status of Network Hosts</title>];
print_sheets ();
print q[<body>
<nav>[<a href="all">List w/o ping</a> <a href="all+ping">List w/ping (Ajax)</a>
<a href="all+ping-static">List w/ping</a> <a href="hosts">hosts</a>
<a href="../snapshot/latest" type="application/atom+xml" rel=feed>Daily
Snapshot (Atom feed)</a>]</nav>
<h1>Status of Network Hosts</h1>
<p>Date: ].(scalar gmtime).q[</p>
<p>Timeout: ].$Timeout.q[ [s]</p>
];
my $hosts_info = get_hosts_info ();
print q[<h2><code>imase-global</code>
(<code>133.1.244.0/26</code>)</h2>];
print_thead ($ping);
for my $addr4 (0..63) {
print_row ('133.1.244.'.$addr4, $hosts_info, $ping);
}
print q[</table>];
print q[<h2><code>imase-local</code>
(<code>192.168.10.0/24</code>)</h2>];
print_thead ($ping);
for my $addr4 (0..255) {
print_row ('192.168.10.'.$addr4, $hosts_info, $ping);
}
print q[</table>];
print q[<h2>Others</h2>];
print_thead ($ping);
for my $addr4 (sort {$a cmp $b} keys %$hosts_info) {
print_row ($addr4, $hosts_info, $ping);
}
print q[</table>];
sub print_thead ($) {
my $ping = shift;
print q[<table><thead>
<tr><th scope=col>IP Address
<th scope=col>Host name(s)
<th scope=col>Owner
<th scope=col>Date of Registeration
<th scope=col>Description
<th scope=col>Location];
print q[<th scope=col>Ping] if $ping;
print q[<tbody>];
} # print_thead
sub print_row ($$$) {
my $addr = shift;
my $hosts_info = shift;
my $ping = shift;
my $eaddr = htescape ($addr);
print qq[<tr><th scope=row><a href="entry/$eaddr"><code>$eaddr</code></a>];
## New hosts.dat
my $entry = $hosts_info->{$addr};
if ($entry->[0] or $entry->[1] or $entry->[2] or $entry->[3] or $entry->[4]) {
my $class = $entry->[3] =~ /reserved|unused/ ? 'not-registered' : 'registered';
print "<td class=$class>", htescape ($entry->[$_]) for 0..4;
} else {
print "<td colspan=5 class=not-registered>(not registered)";
}
if ($ping == 2) {
my ($ret, $duration) = ping ($addr, $Timeout);
if ($ret) {
printf qq[<td class=alive>alive (%.2f [ms])], $duration * 1000;
} else {
print qq[<td class=dead>dead];
}
} elsif ($ping) {
print qq[<td class=FAIL id="ping-$eaddr">FAIL (noscript)<script>
ping (document.getElementById ("ping-$eaddr"), "$eaddr");
</script></td>];
}
delete $hosts_info->{$addr};
} # print_row
} elsif ($path =~ m#^/entry/([^/]+)$#) {
my $addr = $1;
if ($ENV{REQUEST_METHOD} eq 'POST') {
lock_hosts_info ();
my $hosts_info = get_hosts_info ();
read STDIN, my $data, $ENV{CONTENT_LENGTH};
require Encode;
my $param;
for (map {
[map {s/\+/ /g; s/%([0-9A-Fa-f]{2})/pack 'C', hex $1/ge; Encode::decode ('utf-8', $_)}
split /=/, $_, 2]}
split /&/, $data) {
$param->{$_->[0]} = $_->[1];
}
$hosts_info->{$addr} = [$param->{host}, $param->{owner}, $param->{'registration-date'}, $param->{description}, $param->{location}];
set_hosts_info ($hosts_info);
print "Status: 303 See Other\nLocation: $ENV{REQUEST_URI}\nContent-Type: text/html; charset=utf-8\n\n";
commit_version ($addr . ' updated');
} else {
my $eaddr = htescape ($addr);
my $hosts_info = get_hosts_info ();
my $entry = $hosts_info->{$addr};
my $has_entry = ($entry->[0] or $entry->[1] or $entry->[2] or $entry->[3] or $entry->[4]) ? 1 : 0;
print "Content-Type: text/html; charset=utf-8\n\n";
print qq[<!DOCTYPE HTML><html lang=en>
<title>Edit $eaddr</title>];
print_sheets ();
print qq[<h1>Edit <code>$eaddr</code></h1>
<form action="" method=post accept-charset=utf-8>
<table>
<tbody>
<tr><th scope=row>IP address<td><input value="$eaddr" readonly>
<tr title="Space-separated host names, possibly empty"><th scope=row>Host name(s)<td><input name=host value="@{[htescape ($entry->[0])]}">
<tr><th scope=row>Owner<td><input name=owner value="@{[htescape ($entry->[1])]}">
<tr><th scope=row>Date of registration<td><input type=date name=registration-date value="@{[$has_entry ? htescape ($entry->[2]) : (sprintf '%04d-%02d-%02d', (localtime)[5]+1900, (localtime)[4]+1, (localtime)[3])]}">
<tr><th scope=row>Description<td><input name=description value="@{[htescape ($entry->[3])]}">
<tr><th scope=row>Location<td><input name=location value="@{[htescape ($entry->[4])]}">
<tr><th scope=row>Ping<td class=FAIL id="ping-$eaddr">FAIL (noscript)<script>
ping (document.getElementById ("ping-$eaddr"), "$eaddr");
</script>
<tr><td colspan=2><button type=submit>Update</button>
</table></form>];
}
} elsif ($path eq '') {
print qq[Content-Type: text/html; charset=us-ascii\n\n<!DOCTYPE HTML><html lang=en><title>Index</title><h1>Index</h1><ul>
<li><a href=..>..</a>
<li><a href=list/>list/</a></ul>];
} elsif ($path eq '/') {
print qq[Content-Type: text/html; charset=us-ascii\n\n<!DOCTYPE HTML><html lang=en><title>Index of list/</title><h1>Index of list/</h1><ul>
<li><a href=..>..</a>
<li><a href=all>all</a>
<li><a href="all+ping">all+ping</a>
<li><a href="hosts">hosts</a></ul>];
} elsif ($path eq '/hosts') {
print "Content-Type: text/plain; charset=utf-8\n\n";
my $hosts_info = get_hosts_info ();
for my $addr (sort {$a cmp $b} grep {$hosts_info->{$_}->[0]}
keys %$hosts_info) {
print "$addr\t$hosts_info->{$addr}->[0]\n";
}
} else {
print "Status: 404 Not Found\nContent-Type: text/plain; charset=us-ascii\n\n404";
}