'Parsed URL' */ private static $Storage = array(); /** * We use true as an extra property to make the domain an array key * @var array $Hosts Array of image hosts */ private static $Hosts = array( 'whatimg.com' => true, 'imgur.com' => true ); /** * Blacklisted sites * @var array $Blacklist Array of blacklisted hosts */ private static $Blacklist = array( 'tinypic.com' ); /** * Array of image hosts that provide thumbnailing * @var array $Thumbs */ private static $Thumbs = array( 'i.imgur.com' => true, 'whatimg.com' => true ); /** * Array of extensions * @var array $Extensions */ private static $Extensions = array( 'jpg' => true, 'jpeg' => true, 'png' => true, 'gif' => true ); /** * Checks from our list of valid hosts * @param string $Host Domain/host to check * @return boolean */ public static function valid_host($Host) { return !empty(self::$Hosts[$Host]) && self::$Hosts[$Host] === true; } /** * Checks if a link's host is (not) good, otherwise displays an error. * @param string $Url Link to an image * @return boolean */ public static function blacklisted($Url, $ShowError = true) { foreach (self::$Blacklist as &$Value) { $Blacklisted = stripos($Url, $Value); if ($Blacklisted !== false) { $ParsedUrl = parse_url($Url); if ($ShowError) { error($ParsedUrl['host'] . ' is not an allowed image host. Please use a different host.'); } return true; } } return false; } /** * Checks to see if a link has a thumbnail * @param string $Url Link to an image * @return string|false Matched host or false */ private static function thumbnailable($Url) { $ParsedUrl = parse_url($Url); return !empty(self::$Thumbs[$ParsedUrl['host']]); } /** * Checks an extension * @param string $Ext Extension to check * @return boolean */ private static function valid_extension($Ext) { // return @self::$Extensions[$Ext] === true; return !empty(self::$Extensions[$Ext]) && (self::$Extensions[$Ext] === true); } /** * Stores a link with a (thumbnail) link * @param type $Link * @param type $Processed */ private static function store($Link, $Processed) { self::$Storage[$Link] = $Processed; } /** * Retrieves an entry from our storage * @param type $Link * @return boolean|string Returns false if no match */ private static function get_stored($Link) { if (isset(self::$Storage[$Link])) { return self::$Storage[$Link]; } return false; } /** * Checks if URL points to a whatimg thumbnail. */ private static function has_whatimg_thumb($Url) { return (strpos($Url, '_thumb') !== false); } /** * Cleans up imgur URL if it already has a modifier attached to the end of it. */ private static function clean_imgur_url($Url) { $Extension = pathinfo($Url, PATHINFO_EXTENSION); $Full = preg_replace('/\.[^.]*$/', '', $Url); $Base = substr($Full, 0, strrpos($Full, '/')); $Path = substr($Full, strrpos($Full, '/') + 1); if (strlen($Path) == 6) { $Last = $Path[strlen($Path) - 1]; if ($Last == 'm' || $Last == 'l' || $Last == 's' || $Last == 'h' || $Last == 'b') { $Path = substr($Path, 0, -1); } } return "$Base/$Path.$Extension"; } /** * Replaces the extension. */ private static function replace_extension($String, $Extension) { return preg_replace('/\.[^.]*$/', $Extension, $String); } /** * Create image proxy URL * @param string $Url image URL * @return image proxy URL */ public static function proxy_url($Url) { global $SSL; return ($SSL ? 'https' : 'http') . '://' . SITE_URL . '/image.php?c=1&i=' . urlencode($Url); } /** * Determine the image URL. This takes care of the image proxy and thumbnailing. * @param string $Url * @param bool $Thumb * @return string */ public static function process($Url, $Thumb = false) { if (empty($Url)) { return ''; } if ($Found = self::get_stored($Url . ($Thumb ? '_thumb' : ''))) { return $Found; } $ProcessedUrl = $Url; if ($Thumb) { $Extension = pathinfo($Url, PATHINFO_EXTENSION); if (self::thumbnailable($Url) && self::valid_extension($Extension)) { if (strpos($Url, 'whatimg') !== false && !self::has_whatimg_thumb($Url)) { $ProcessedUrl = self::replace_extension($Url, '_thumb.' . $Extension); } elseif (strpos($Url, 'imgur') !== false) { $ProcessedUrl = self::replace_extension(self::clean_imgur_url($Url), 'm.' . $Extension); } } } if (check_perms('site_proxy_images')) { $ProcessedUrl = self::proxy_url($ProcessedUrl); } self::store($Url . ($Thumb ? '_thumb' : ''), $ProcessedUrl); return $ProcessedUrl; } /** * Cover art thumbnail in browse, on artist pages etc. * @global array $CategoryIcons * @param string $Url * @param int $CategoryID */ public static function cover_thumb($Url, $CategoryID) { global $CategoryIcons; if ($Url) { $Src = self::process($Url, true); $Lightbox = self::process($Url); } else { $Src = STATIC_SERVER . 'common/noartwork/' . $CategoryIcons[$CategoryID - 1]; $Lightbox = $Src; } ?> Cover