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contrib-munin/plugins/ubuntu/ubuntu-mirrors

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#!/usr/bin/php
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<?php
# plugin made by Dju
# v1.1
# allows to monitor the mirrors number and bandwidth from Launchpad for a specific country
# saves the results in cache and connects to launchpad website every 3 hours
# the country constant it=s the name of he country, as it appears on the launchpad page (bold, on a gray background)
define( 'URL', 'https://launchpad.net/ubuntu/+cdmirrors' );
define( 'CACHE_FILE', 'ubuntu_mirrors.txt' );
define( 'CACHE_UPTIME', 3 );
define( 'COUNTRY', 'France' );
function find_and_short( $str, &$html, $with_str=true )
{
$pos = strpos( $html, $str );
if( $pos === false ) {
throw new Exception( "error finding '$str'", 2 );
} else {
$removed = ( $with_str == true ) ? substr( $html, 0, $pos+strlen($str) ) : substr( $html, 0, $pos );
$html = substr( $html, $pos + strlen($str) );
return $removed;
}
}
function get_cache()
{
if( !file_exists(CACHE_FILE) ) {
return false;
} else {
$cache_time = @filemtime( CACHE_FILE );
$cache_age = ( time() - $cache_time ) / 3600;
if( $cache_age <= CACHE_UPTIME ) {
$content = @file_get_contents( CACHE_FILE );
if( !$content ) throw new Exception( 'Erreur lecture cache '.CACHE_FILE, 3 );
return array(
'datas' => explode( '|', $content ),
'date' => $cache_time
);
} else {
@unlink( CACHE_FILE );
return false;
}
}
}
function set_cache( $MIRRORS, $BW_RATE, $BW_UNIT )
{
$content = $MIRRORS . '|' . $BW_RATE . '|' . $BW_UNIT;
$write = @file_put_contents( CACHE_FILE, $content );
if( !$write ) throw new Exception( 'erreur ecriture cache '.CACHE_FILE, 4 );
}
function get_from_launchpad()
{
$html = @file_get_contents( URL );
if( !$html ) throw new Exception( 'Error connecting to launchpad', 1 );
$str1 = COUNTRY.'</th>';
$str2 = '<th style="text-align: left">';
$str3 = '</th>';
$str4 = '<span>mirrors</span>';
find_and_short( $str1, $html );
find_and_short( $str2, $html );
$BW = find_and_short( $str3, $html, false );
list( $BW_RATE, $BW_UNIT ) = explode( ' ', $BW );
$rest = find_and_short( $str4, $html, false );
$rest = str_replace( "\n", '', $rest );
find_and_short( '<th style="text-align: left">', $rest );
$MIRRORS = trim( $rest );
return array( $MIRRORS, $BW_RATE, $BW_UNIT );
}
try
{
$CACHE = get_cache();
if( $CACHE != false ) {
list( $MIRRORS, $BW_RATE, $BW_UNIT ) = $CACHE['datas'];
$CACHE_DATE = date('d/m/y H:i', $CACHE['date'] );
}
if( isset($_SERVER['argv'][1]) && $_SERVER['argv'][1] != '' ) {
switch( $_SERVER['argv'][1] ) {
case 'autoconf':
echo "yes\n";
exit( 0 );
break;
case 'config':
echo "graph_title Ubuntu Mirrors in ".COUNTRY."\n";
echo "graph_category other\n";
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echo "graph_args --base 1000 -l 0\n";
echo "graph_scale no\n";
echo "graph_vlabel Bandwidth / Mirrors\n";
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$graph_info = 'This graph shows the available bandwidth and mirrors for ubuntu';
if( $CACHE != false ) $graph_info .= ' (cache: '.CACHE_UPTIME.'h - last: '.$CACHE_DATE.')';
echo "graph_info ".$graph_info.")\n";
echo "nbm.label Mirrors number\n";
$bwUnit = ( $CACHE == false ) ? '' : ' in '.$BW_UNIT;
echo "bw.label Bandwidth".$bwUnit."\n";
exit( 0 );
break;
default:
echo "Unknown arg: ".$arg."\n";
exit( 2 );
}
}
if( $CACHE == false ) {
list( $MIRRORS, $BW_RATE, $BW_UNIT ) = get_from_launchpad();
set_cache( $MIRRORS, $BW_RATE, $BW_UNIT );
}
echo "nbm.value ".$MIRRORS."\n";
echo "bw.value ".$BW_RATE."\n";
exit( 0 );
}
catch( Exception $ex )
{
echo 'Exception '.$ex->getCode() . ' ('.$ex->getMessage() . ")\n";
exit( $ex->getCode() );
}
?>