Added experimental CDN support.

1 files changed, 82 insertions, 0 deletions

diff --git a/cdn/originpull.php b/cdn/originpull.php
new file mode 100644
index 0000000..00f9a03
--- /dev/null
+++ b/cdn/originpull.php
@@ -0,0 +1,82 @@
+<?php
+exit; // REMOVE THIS LINE IN PRODUCTION ENVIRONMENT!!!
+
+if ( ! isset($_GET['url']) || $_GET['url'] == "" ){
+	header($_SERVER['SERVER_PROTOCOL'] . " 404 Not Found");
+	header('X-Cache: Miss');
+	exit;
+}
+header('X-Cache: Hit');
+
+define('ABSP', dirname(__FILE__) . '/');
+
+# directory on origin website
+define('URI', '/');
+
+# origin website
+define('ORIGIN', 'https://jungegemeinde.iamfabulous.de' . URI);
+
+# local directory
+define('LOCAL', '/');
+
+$basepath = array('js', 'static', 'img', 'static/img');
+$path_parts = pathinfo($_GET['url']);
+
+function getMime($file){
+	$finfo = new finfo(FILEINFO_MIME_TYPE);
+	$mime = $finfo->file($file);
+
+	# hack to get correct mime type for .css and .js
+	$ext = pathinfo($file,PATHINFO_EXTENSION);
+	switch($ext){
+		case 'css': 
+			$mime = "text/css";
+			break;
+		case'js':
+			$mime = "text/javascript";
+			break;
+		default:
+			break;
+	}
+
+	return $mime;
+}
+
+foreach($basepath as $dir){
+	
+	if ( URI . $dir . "/" == $path_parts['dirname'] . '/' ){
+
+		if ( !is_dir(ABSP . $dir) ){
+			mkdir(ABSP . $dir, 0744, true);
+		}
+
+		$request = str_replace(URI . $dir . "/", "",$_GET['url'] );
+		$scan = array_diff( scandir($dir), array('.', '..') );
+
+		if ( in_array($request, $scan) ){
+			header("Content-type: " . getMime($dir . '/' . $request));
+			header("X-Accel-Redirect: " . LOCAL . $dir . '/' . $request);
+			exit;
+		} else {
+			$ch = curl_init(ORIGIN . $dir . "/" . $request);
+			curl_setopt($ch, CURLOPT_NOBODY, true);
+			curl_setopt($ch, CURLOPT_USERAGENT, 'Origin Pull/v0.1');
+			curl_exec($ch);
+			$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+			curl_close($ch);
+
+			if ( $httpcode == 200 || $httpcode == 302 ) {
+				file_put_contents($dir . '/' . $request,  file_get_contents(ORIGIN . $dir . "/" . $request) );
+				header("Content-type: " . getMime($dir . '/' . $request));
+				header("X-Accel-Redirect: " . LOCAL . $dir . '/' . $request);
+				exit;
+			} else {
+				continue;
+			}
+		}
+	}
+
+}
+
+header($_SERVER['SERVER_PROTOCOL'] . " 404 Not Found");
+header('X-Cache: Miss');