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<?php
/**
* Class regrouping basic methods for download page.
*
* @copyright 2009-2011 Romain d'Alverny <rda>
* @license GPL-3+
*
*/
class Downloads
{
/**
* @param string $country matches the URI base dir
* @param string $locale
*/
function __construct($locale = 'en', $cache = null)
{
$this->_locale = $locale;
}
/**
* @param string $ua
*
* @return array
*/
public static function get_platform($ua = null)
{
if ($ua == '')
return array(
'arch' => 'i586',
'system' => 'unknow',
'locale' => 'en',
'browser' => null
);
$locale = null;
if (preg_match_all('/([.^\(^\)]*) \((.*)\) (.*)/', $ua, $r))
{
$r = $r[2][0];
$r = explode(';', $r);
$r = explode(')', trim($r[3]));
if (strlen($r[0]) > 5)
$r = substr($r[0], 0, 5);
else
$r = $r[0];
$locale = $r;
}
$arch = 'i586';
if (strpos($ua, 'x86_64') !== false)
$arch = 'x86_64';
$sys = null;
if (strpos($ua, 'Windows') !== false)
$sys = 'win';
elseif (strpos($ua, 'Macintosh') !== false
|| strpos($ua, 'Mac OS X') !== false)
$sys = 'mac';
elseif (strpos($ua, 'Linux') !== false)
$sys = 'linux';
$browser = null;
if (strpos($ua, 'Firefox') !== false)
$browser = 'firefox';
elseif (strpos($ua, 'MSIE') !== false)
$browser = 'msie';
elseif (strpos($ua, 'Safari') !== false)
$browser = 'safari';
elseif (strpos($ua, 'Opera') !== false)
$browser = 'opera';
return array(
'arch' => $arch,
'system' => $sys,
'locale' => $locale,
'browser' => $browser
);
}
/**
*/
public static function get_all_mirrors()
{
$prod = true;
$cache_file = '../../lib/cached.list.php';
if ($prod) {
require $cache_file;
return $mirrors;
}
// @todo cache this!
$data = file('http://mirrors.mageia.org/api/foo.Cauldron.i586.list');
$mirrors3 = array();
foreach ($data as $line) {
$line = explode(',', trim($line));
foreach ($line as $val) {
$val = explode('=', trim($val));
$m[$val[0]] = $val[1];
}
$pu = parse_url($m['url']);
if (in_array($pu['scheme'], array('http', 'https', 'ftp')))
$mirrors3[$m['country']][] = array(
'city' => $m['city'],
'zone' => $m['zone'],
'url' => str_replace('/distrib/cauldron/i586', '', $m['url'])
);
}
/*
file_put_contents($cache_file,
sprintf('<?php $mirrors = %s; ?>',
var_export($mirrors3, true)));
//*/
return $mirrors3;
}
/**
*/
function get_mirror($country)
{
$mirs = self::get_all_mirrors();
if (array_key_exists($country, $mirs))
{
$mirs = $mirs[$country];
shuffle($mirs);
return array_shift($mirs);
}
else
{
shuffle($mirs);
$mirs = array_shift($mirs);
shuffle($mirs);
return array_shift($mirs);
}
}
/**
* Queries a GeoIP db for $ip to get the country.
*
* @param string $ip
*
* @return string
*
* If fail, use $country as a fallback to return.
* @see http://www.maxmind.com/app/php & http://www.maxmind.com/app/geoip_country
* It has limitations too & needs to be updated from time to time.
*
* @todo make a separate class for this.
* @todo unit tests for this!
*/
function get_country($ip)
{
error_log(sprintf('in get_country with %s.', $ip));
if ($ip == '127.0.0.1' || $ip == '::1')
return null;
if (!function_exists('geoip_open')) {
require_once '../../lib/maxmind/geoip/geoip.inc.php';
}
$gi = geoip_open(realpath('../../lib/maxmind/geoip/GeoIP.dat'),
GEOIP_STANDARD);
$loc = geoip_country_code_by_addr($gi, $ip);
geoip_close($gi);
if (trim($loc) == '' || is_null($loc))
return null;
error_log(sprintf('in get_country: %s', $loc));
return strtoupper($loc);
}
/**
* Setup session data about current visitor for downloads.
*
* @param string $version
* @param boolean $force
*
* @return array
*/
function prepare_download($version, $force = false)
{
$fuzzy_mirror = false;
if (isset($_GET['country']))
{
$country = $_GET['country'];
$force = true;
}
if (!$force && isset($_SESSION['dl-data']))
{
error_log(sprintf('Got session data: %s', print_r($_SESSION['dl-data'], true)));
$system = $_SESSION['dl-data']['system'];
if (isset($_GET['mirror']))
{
$mirror = array('url' => $_GET['mirror']);
$mirror['purl'] = parse_url($mirror['url']);
$_SESSION['dl-data']['mirror'] = $mirror;
$country = '';
}
else
{
$country = $_SESSION['dl-data']['country'];
$mirror = $_SESSION['dl-data']['mirror'];
}
}
else
{
error_log('getting platform');
$system = self::get_platform($_SERVER['HTTP_USER_AGENT']);
if (isset($_GET['mirror']))
{
$mirror = array('url' => $_GET['mirror']);
$mirror['purl'] = parse_url($mirror['url']);
$country = '';
}
else
{
error_log('no mirror set yet');
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])
&& $str = $_SERVER['HTTP_X_FORWARDED_FOR'])
{
$arr = explode(', ', $str);
$ip = $arr[0];
}
else
$ip = $_SERVER['REMOTE_ADDR'];
$_SESSION['ip'] = $ip;
if (isset($_GET['country']))
$country = $_GET['country'];
else
$country = self::get_country($ip);
$mirror = $this->get_mirror($country);
$fuzzy_mirror = is_null($country) ? true : false;
$mirror['purl'] = parse_url($mirror['url']);
// reassign country, as get_one_mirror() may have decided
// to return a mirror from another country than the one
// requested initially - @see get_one_mirror()
$country = $mirror['zone'];
if (is_null($mirror)) {
// @todo?
}
}
$_SESSION['dl-data'] = array(
'system' => $system,
'country' => $country,
'mirror' => $mirror
);
//echo "<pre>Got NEW session data:", print_r($_SESSION['dl-data'], true), '</pre>';
}
//
return array(
'arch' => $system['arch'],
'mirror_host' => $mirror['purl']['host'],
'mirror_scheme' => $mirror['purl']['scheme'],
'mirror_url' => $mirror['url'],
'country' => $country,
'fuzzy_mirror' => $fuzzy_mirror
);
}
}
|
