153 lines
4.4 KiB
PHP
Executable File
153 lines
4.4 KiB
PHP
Executable File
<?php
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namespace Rails\Assets;
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use Rails;
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class Server
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{
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public function dispatch_request()
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{
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$path = $this->request()->path();
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if ($base_path = $this->base_path())
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$path = str_replace($base_path, '', $path);
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$request = str_replace(Rails::assets()->prefix() . '/', '', $path);
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$this->serve_file($request);
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}
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public function serve_file($file_path)
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{
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$file = Rails::assets()->findFile($file_path);
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if (!$file) {
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$this->set_404_headers();
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return;
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}
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$ext = $file->type();
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$parser = null;
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switch ($ext) {
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case 'js':
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$parser = new Parser\Base($file);
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$this->set_javascript_headers();
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break;
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case 'css':
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$parser = new Parser\Base($file);
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$this->set_stylesheet_headers();
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break;
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case 'jpeg':
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$this->headers()->contentType('image/jpeg');
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break;
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case 'jpg':
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$this->headers()->contentType('image/jpeg');
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break;
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case 'png':
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$this->headers()->contentType('image/png');
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break;
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case 'gif':
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$this->headers()->contentType('image/gif');
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break;
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case 'svg':
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$this->headers()->contentType('image/svg+xml');
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break;
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case 'ttf':
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$this->headers()->contentType('application/x-font-ttf');
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break;
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case 'woff':
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$this->headers()->contentType('application/font-woff');
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break;
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default:
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$this->headers()->contentType('application/octet-stream');
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return;
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}
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if ($parser) {
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if ($this->params()->body) {
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$parseType = Parser\Base::PARSE_TYPE_NONE;
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} else {
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$parseType = Parser\Base::PARSE_TYPE_FULL;
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}
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$parser->parse($parseType);
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$file_contents = $parser->parsed_file();
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} else {
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$file_contents = file_get_contents($file->full_path());
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}
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$etag = md5($file_contents);
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$date = date('D, d M Y H:i:s e');
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$last_modified = Rails::cache()->fetch('assets.last_mod.' . $file->full_path(), function() use ($date){
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return $date;
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});
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if ($this->file_modified($etag, $last_modified)) {
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$this->headers()->add("Last-Modified", $last_modified);
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$this->headers()->add("Cache-Control", 'public, max-age=31536000');
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$this->headers()->add("ETag", $etag);
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Rails::application()->dispatcher()->response()->body($file_contents);
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} else {
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$this->headers()->status('HTTP/1.1 304 Not Modified');
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Rails::application()->dispatcher()->response()->body('');
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}
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}
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public function base_path()
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{
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return Rails::application()->router()->basePath();
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}
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public function request()
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{
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return Rails::application()->dispatcher()->request();
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}
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public function params()
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{
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return Rails::application()->dispatcher()->parameters();
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}
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public function headers()
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{
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return Rails::application()->dispatcher()->headers();
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}
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private function file_modified($etag, $last_modified)
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{
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$if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : false;
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$if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? $_SERVER['HTTP_IF_NONE_MATCH'] : false;
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if ((($if_none_match && $if_none_match == $etag) || !$if_none_match) &&
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($if_modified_since && $if_modified_since == $last_modified))
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{
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return false;
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} else {
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return true;
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}
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}
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private function set_404_headers()
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{
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$this->headers()->status(404);
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}
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private function set_javascript_headers()
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{
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$this->headers()->contentType('application/javascript');
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}
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private function set_stylesheet_headers()
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{
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$this->headers()->contentType('text/css');
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}
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} |