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| 1 | <?php | |
| 2 | ||
| 3 | /* | |
| 4 | * Uporabnik doda JS in CSS datoteke, razred jih združi po tipu datoteke in morebitni navedeni sekciji ter ustvari cache. | |
| 5 | * | |
| 6 | * Opozorilo (potencialni exploit): datoteke dodajaj ročno oziroma brez user inputa | |
| 7 | * | |
| 8 | * Drugače je razred dokaj optimiziran in varen. | |
| 9 | * | |
| 10 | * http://schtr4jh.net | |
| 11 | */ | |
| 12 | ||
| 13 | // Optimize::addFile("css", array("css/default.css")); // doda 1 css datoteko
| |
| 14 | // Optimize::addFile("js", array("js/jquery/v1.7.2.js", "druga/js/datoteka.js));
| |
| 15 | // Optimize::addFile("js", array("js/datoteka/za/specificno/podstran.js), "specificna");
| |
| 16 | // Optimize::getHTML(); // vrne končni html | |
| 17 | ||
| 18 | define("WWW_PATH" . "/srv/path/webpage.com/"); // odkomentiraj in nastavi (obvezno končna poševnica)
| |
| 19 | ||
| 20 | class OptimizeCssJs {
| |
| 21 | private static $files = array(); | |
| 22 | public static $types = array(); | |
| 23 | private static $content = array(); | |
| 24 | ||
| 25 | /* | |
| 26 | * Konfiguracija tipov datotek. | |
| 27 | */ | |
| 28 | public static function setTypes() {
| |
| 29 | self::$types = array( | |
| 30 | "css" => array( | |
| 31 | "header" => "text/css", | |
| 32 | "ext" => "css", | |
| 33 | "html" => '<link rel="stylesheet" type="text/css" href="##LINK##" />' | |
| 34 | ), | |
| 35 | "js" => array( | |
| 36 | "header" => "text/javascript", | |
| 37 | "ext" => "js", | |
| 38 | "html" => '<script type="text/javascript" src="##LINK##"></script>' | |
| 39 | ) | |
| 40 | ); | |
| 41 | } | |
| 42 | ||
| 43 | /* | |
| 44 | * Metoda za dodajanje datotek. | |
| 45 | * | |
| 46 | * $type - eden izmed zgoraj navedenih tipov datotek (prvi index) | |
| 47 | * $files - ena (string) ali več datotek (enodimenzionalen array) | |
| 48 | * $section - privzeto main, lahko se doda dodatna sekcija. Za vsako sekcijo se ustvari svoja cache datoteka (main za datoteke, ki se vedno postavijo na strani in poljubno število drugih za v večini nepomembne datoteke) | |
| 49 | */ | |
| 50 | public static function addFile($type, $files, $section = "main") {
| |
| 51 | // type must be set | |
| 52 | if (!isset(self::$types[$type]) || empty($files)) | |
| 53 | return FALSE; | |
| 54 | ||
| 55 | // if files are not in array, we make array | |
| 56 | if (!is_array($files)) | |
| 57 | $files = array($files); | |
| 58 | ||
| 59 | foreach ($files AS $file) | |
| 60 | if (!isset(self::$files[$type][$section]) || !in_array($file, self::$files[$type][$section])) | |
| 61 | self::$files[$type][$section][] = $file; | |
| 62 | } | |
| 63 | ||
| 64 | /* | |
| 65 | * Izvrši php datoteko (oziroma prikaže source druge) in vrne rezultat. | |
| 66 | * | |
| 67 | * $file - php datoteka, ki mora biti izvršena (kakšni dinamični css stili / js datoteke) | |
| 68 | * $args - morebitno posredovanje argumentov | |
| 69 | */ | |
| 70 | private static function runPHPFile($file, $args) {
| |
| 71 | ob_start(); | |
| 72 | include $file; | |
| 73 | return ob_get_clean(); | |
| 74 | } | |
| 75 | ||
| 76 | /* | |
| 77 | * Generira končni HTML. | |
| 78 | */ | |
| 79 | public static function getHTML() {
| |
| 80 | $html = array(); | |
| 81 | ||
| 82 | foreach (self::$types AS $type => $conf) {
| |
| 83 | $dir = "cache/" . $type . "/"; | |
| 84 | ||
| 85 | // create cache dir | |
| 86 | if (!is_dir(WWW_PATH . $dir)) | |
| 87 | mkdir(WWW_PATH . $dir, 777, TRUE); | |
| 88 | ||
| 89 | // foreach filetype as section | |
| 90 | if (isset(self::$files[$type])) | |
| 91 | foreach (self::$files[$type] AS $section) {
| |
| 92 | $hash = sha1(implode($section)); | |
| 93 | $filename = $hash . "." . self::$types[$type]['ext']; | |
| 94 | ||
| 95 | // if file doesn't exist, we create it | |
| 96 | if (!is_file(WWW_PATH . $dir . $filename) || self::isOldCache($section, WWW_PATH . $dir . $filename)) {
| |
| 97 | @unlink(WWW_PATH . $dir . $filename); | |
| 98 | ||
| 99 | $fileContent = NULL; | |
| 100 | // foreach section as file | |
| 101 | foreach ($section AS $key => $file) | |
| 102 | if (end(explode(".", $file)) == $conf['ext']
| |
| 103 | && $content = file_get_contents(WWW_PATH . $file)) {
| |
| 104 | $fileContent .= $content; | |
| 105 | } else if (end(explode(".", $file)) == "php"
| |
| 106 | || end(explode(".", $key)) == "php") {
| |
| 107 | ||
| 108 | if (is_file(WWW_PATH . $file)) {
| |
| 109 | $fileContent .= self::runPHPFile(WWW_PATH . $file, NULL); | |
| 110 | } else if (is_file(WWW_PATH . $key)) {
| |
| 111 | $fileContent .= self::runPHPFile(WWW_PATH . $key, $file); | |
| 112 | } | |
| 113 | } | |
| 114 | ||
| 115 | // save file | |
| 116 | file_put_contents(WWW_PATH . $dir . $filename, $fileContent); | |
| 117 | } | |
| 118 | ||
| 119 | $html[] = str_replace("##LINK##", "/" . $dir . $filename, self::$types[$type]['html']);
| |
| 120 | } | |
| 121 | } | |
| 122 | ||
| 123 | return implode("\n", $html);
| |
| 124 | } | |
| 125 | ||
| 126 | /* | |
| 127 | * Preveri starost cachea | |
| 128 | * | |
| 129 | * $section - ime sekcije | |
| 130 | * $filename - ime datoteke | |
| 131 | */ | |
| 132 | public static function isOldCache($section, $filename) {
| |
| 133 | if (is_file($filename) && is_readable($filename)) | |
| 134 | foreach ($section AS $key => $file) | |
| 135 | if (is_file(WWW_PATH . $file) && is_readable(WWW_PATH . $file)) | |
| 136 | if (filemtime(WWW_PATH . $file) > filemtime($filename)) | |
| 137 | return TRUE; | |
| 138 | else | |
| 139 | return TRUE; | |
| 140 | ||
| 141 | return FALSE; | |
| 142 | } | |
| 143 | } | |
| 144 | ||
| 145 | OptimizeJsCss::setTypes(); | |
| 146 | ||
| 147 | ?> |
