4 * Generic cached assset server... -- No security om this.. should only return compressed CSS/JS
6 * Does a few tricks with headers to improve caching...
9 * Also includes code to generate assets...
11 * methods outputJavascriptDir / outputCssDir generate links to
12 * BASEURL/Asset/css/xxxx.yyy.zzz
13 * BASEURL/Asset/js/xxxx.yyy.zzz
16 * we deliver the file from
17 * SESSION-DIR/{$www-user}-{$ff->project}-$ff->version}-{js|css}-compile/{filename}/PATH';
22 require_once 'Pman.php';
24 class Pman_Core_Asset extends Pman {
28 'js' => 'text/javascript',
37 function get($s='', $opts = Array())
41 $this->sessionState(0);
43 $bits = explode('/', $s);
45 if (empty($bits[0]) || empty($bits[1]) || !isset($this->types[$bits[0]])) {
46 $this->jerr("invalid url");
49 $s = str_replace('/', '-', $bits[1]);
51 $ui = posix_getpwuid(posix_geteuid());
52 $ff = HTML_FlexyFramework::get();
54 $compile = self::getCompileDir($bits[0], '', false);
56 $fn = $compile . '/'. $s .'.'. $bits[0];
58 if (!file_exists($fn)) {
59 header('Content-Type: '. $this->types[$bits[0]]);
61 echo "// compiled file not found = $fn";
65 $supportsGzip = !empty($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos( $_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip' ) !== false;
68 $last_modified_time = filemtime($fn);
73 isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) &&
74 strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $last_modified_time
78 isset($_SERVER['HTTP_IF_NONE_MATCH']) &&
79 trim($_SERVER['HTTP_IF_NONE_MATCH']) == md5($fn)
81 header("HTTP/1.1 304 Not Modified");
85 header('Content-Type: '. $this->types[$bits[0]]);
88 header("Pragma: public");
90 header('Cache-Control: max-age=2592000, public');
91 header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + 2592000));
92 header('Last-Modified: '.gmdate('D, d M Y H:i:s \G\M\T', $last_modified_time));
93 header('Etag: '. md5($fn));
95 if ( $supportsGzip ) {
96 $content = gzencode( file_get_contents($fn) , 9);
98 header('Content-Encoding: gzip');
99 header('Vary: Accept-Encoding');
100 header('Content-Length: '. strlen($content));
107 $fh = fopen($fn,'r');
119 function post($s='') {
120 if(!empty($_REQUEST['_clear_cache'])) {
121 $this->clearCompiledFilesCache();
127 static function getCompileDir($type, $module = '', $is_mkdir = true)
129 $ff = HTML_FlexyFramework::get();
131 $ui = posix_getpwuid(posix_geteuid());
133 $compile_dir = session_save_path() . "/";
135 if (empty($module)) {
136 $module = $ff->project . (isset($ff->appNameShort) ? '_' . $ff->appNameShort : '');
143 $compile_dir .= implode("-", array(
155 if (file_exists($compile_dir)) {
163 if(mkdir($compile_dir, 0700, true)) {
170 function clearCompiledFilesCache()
172 $au = $this->getAuthUser();
173 if (!$au && !in_array($_SERVER['REMOTE_ADDR'] , array('127.0.0.1','::1'))) {
174 $this->jerr("Cache can only be cleared by authenticated users");
177 require_once 'System.php';
178 $ff = HTML_FlexyFramework::get();
180 $mods = $this->modulesList();
181 $mods[] = $ff->project; // Pman - this was the old format...
182 $mods[] = ''; // Pman + appshortname..
184 foreach ($mods as $module) {
185 $compile_dir = $this->getCompileDir('js', $module, false);
187 if(!empty($compile_dir)) {
188 System::rm(array('-r', $compile_dir));
190 $compile_dir = $this->getCompileDir('css', $module, false);
192 if(!empty($compile_dir)) {
193 System::rm(array('-r', $compile_dir));