Added minify plugin

1 files changed, 122 insertions, 0 deletions

diff --git a/plugins/Minify/minify.php b/plugins/Minify/minify.php
new file mode 100644
index 000000000..2de2d6d26
--- /dev/null
+++ b/plugins/Minify/minify.php
@@ -0,0 +1,122 @@
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
+
+// We bundle the minify library...
+set_include_path(get_include_path() . PATH_SEPARATOR . dirname(__FILE__) . '/extlib/minify/min/lib');
+
+class MinifyAction extends Action
+{
+    const TYPE_CSS = 'text/css';
+    const TYPE_HTML = 'text/html';
+    // there is some debate over the ideal JS Content-Type, but this is the
+    // Apache default and what Yahoo! uses..
+    const TYPE_JS = 'application/x-javascript';
+
+    const cacheKey = 'minify';
+
+    var $file;
+
+    function isReadOnly($args)
+    {
+        return true;
+    }
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+        $this->v = $args['v'];
+
+        $f = $this->arg('f');
+        if(isset($f)) {
+            $this->file = INSTALLDIR.'/'.$f;
+            if(file_exists($this->file)) {
+                return true;
+            } else {
+                $this->clientError(_('f parameter is not a valid path'),404);
+                return false;
+            }
+        }else{
+            $this->clientError(_('f parameter is required'),500);
+            return false;
+        }
+    }
+
+    function etag() 
+    {
+        if(isset($this->v)) {
+            return "\"" . crc32($this->file . $this->v) . "\"";
+        }else{
+            $stat = stat($this->file);
+            return '"' . $stat['ino'] . '-' . $stat['size'] . '-' . $stat['mtime'] . '"';
+        }
+    }
+
+    function lastModified()
+    {
+        return filemtime($this->file);
+    }
+
+    function handle($args)
+    {
+        parent::handle($args);
+        
+        $c = common_memcache();
+        if (!empty($c)) {
+            $out = $c->get(common_cache_key(self::cacheKey . ':' . $this->file));
+        }
+        if(empty($out)) {
+            $out = $this->minify($this->file);
+        }
+        if (!empty($c)) {
+            $c->set(common_cache_key(self::cacheKey . ':' . $this->file), $out);
+        }
+
+        $sec = session_cache_expire() * 60;
+        header('Cache-Control: public, max-age=' . $sec);
+        header('Pragma: public');
+        $this->raw($out);
+    }
+
+    function minify($file)
+    {
+        $info = pathinfo($file);
+        switch(strtolower($info['extension'])){
+            case 'js':
+                require_once('JSMin.php');
+                $out = JSMin::minify(file_get_contents($file));
+                header('Content-Type: ' . self::TYPE_JS);
+                break;
+            case 'css':
+                require_once('Minify/CSS.php');
+                $options = array();
+                $options['currentDir'] = dirname($file);
+                $options['docRoot'] = INSTALLDIR;
+                $out = Minify_CSS::minify(file_get_contents($file),$options);
+                header('Content-Type: ' . self::TYPE_CSS);
+                break;
+            default:
+                $this->clientError(_('File type not supported'),500);
+                return false;
+        }
+        return $out;
+    }
+}
+