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<?php
require('../constants.php');
include(LIB_PATH . '/Favicon/Favicon.php');
include(LIB_PATH . '/Favicon/DataAccess.php');
$favicons_dir = DATA_PATH . '/favicons/';
$default_favicon = PUBLIC_PATH . '/themes/icons/default_favicon.ico';
/* Télécharge le favicon d'un site et le place sur le serveur */
function download_favicon($website, $dest) {
global $favicons_dir, $default_favicon;
$favicon_getter = new \Favicon\Favicon();
$favicon_getter->setCacheDir($favicons_dir);
$favicon_url = $favicon_getter->get($website);
if ($favicon_url === false) {
return @copy($default_favicon, $dest);
}
$c = curl_init($favicon_url);
curl_setopt($c, CURLOPT_HEADER, false);
curl_setopt($c, CURLOPT_RETURNTRANSFER, true);
curl_setopt($c, CURLOPT_BINARYTRANSFER, true);
$img_raw = curl_exec($c);
$status_code = curl_getinfo($c, CURLINFO_HTTP_CODE);
curl_close($c);
if ($status_code === 200) {
$file = fopen($dest, 'w');
if ($file !== false) {
fwrite($file, $img_raw);
fclose($file);
return true;
}
}
return false;
}
function show_default_favicon() {
global $default_favicon;
header('HTTP/1.1 404 Not Found');
header('Content-Type: image/ico');
readfile($default_favicon);
die();
}
$id = isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : '0';
if (!ctype_xdigit($id)) {
$id = '0';
}
$txt = $favicons_dir . $id . '.txt';
$ico = $favicons_dir . $id . '.ico';
$ico_mtime = @filemtime($ico);
$txt_mtime = @filemtime($txt);
if (($ico_mtime == false) || ($txt_mtime > $ico_mtime)) {
if ($txt_mtime == false) {
show_default_favicon();
}
$url = file_get_contents($txt);
if (!download_favicon($url, $ico)) {
show_default_favicon();
}
}
require(LIB_PATH . '/http-conditional.php');
header('Content-Type: image/x-icon');
header('Content-Disposition: inline; filename="' . $id . '.ico"');
if (!httpConditional($ico_mtime, 2592000, 2)) {
readfile($ico);
}
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