From 11f08ee4399c62cc1d2c36457a214c6db693db06 Mon Sep 17 00:00:00 2001
From: Tim Almdal <tnalmdal@shaw.ca>
Date: Fri, 26 Jun 2009 21:42:02 -0700
Subject: Implement the combined javascript controller.

---
 modules/gallery/controllers/javascript.php | 64 ++++++++++++++++++++++++++++++
 modules/gallery/libraries/Theme_View.php   | 29 ++++++++++++--
 2 files changed, 90 insertions(+), 3 deletions(-)
 create mode 100644 modules/gallery/controllers/javascript.php

(limited to 'modules')

diff --git a/modules/gallery/controllers/javascript.php b/modules/gallery/controllers/javascript.php
new file mode 100644
index 00000000..d3c0ded5
--- /dev/null
+++ b/modules/gallery/controllers/javascript.php
@@ -0,0 +1,64 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2009 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class Javascript_Controller extends Controller {
+  public function combined($key) {
+    if (preg_match('/[^0-9a-f]/', $key)) {
+      /* The key can't contain non-hex, so just terminate early */
+      Kohana::show_404();
+    }
+
+    // We don't need to save the session for this request
+    Session::abort_save();
+
+    Kohana::log("error", Kohana::debug($_SERVER));
+    // Dump out the javascript file
+    $ext = strpos($_SERVER["HTTP_ACCEPT_ENCODING"], "gzip") !== false ? "_gzip" : "";
+    $file = VARPATH . "tmp/CombinedJavascript_$key{$ext}";
+
+    if (!file_exists($file)) {
+      Kohana::show_404();
+    }
+
+    $stats = stat($file);
+    if (!empty($_SERVER["HTTP_IF_MODIFIED_SINCE"]) &&
+        $stats[9] <= $_SERVER["HTTP_IF_MODIFIED_SINCE"]) {
+      header("HTTP/1.0 304 Not Modified");
+      return;
+    }
+
+    Kohana::log("error", Kohana::debug($_SERVER));
+    if (strpos($_SERVER["HTTP_ACCEPT_ENCODING"], "gzip") !== false) {
+      header("Content-Encoding: gzip");
+      header("Cache-Control: private, x-gzip-ok=\"public\"");
+    }
+
+    header("Content-Type: text/javascript; charset=UTF-8");
+
+    header("Expires: " . gmdate(21474383647));
+    header("Last-Modified: " . gmdate($stats[9]));
+
+    Kohana::close_buffers(false);
+
+    $fd = fopen($file, "rb");
+    fpassthru($fd);
+    fclose($fd);
+  }
+}
+
diff --git a/modules/gallery/libraries/Theme_View.php b/modules/gallery/libraries/Theme_View.php
index 7696f3b0..1746f1d2 100644
--- a/modules/gallery/libraries/Theme_View.php
+++ b/modules/gallery/libraries/Theme_View.php
@@ -170,11 +170,34 @@ class Theme_View_Core extends View {
 
   private function _combine_script() {
     $links = array();
-    Kohana::log("error", Kohana::debug($this->scripts));
+    $key = "";
     foreach (array_keys($this->scripts) as $file) {
-      $links[] = html::script($file);
+      $path = DOCROOT . $file;
+      if (file_exists($path)) {
+        $stats = stat($path);
+        $links[] = $path;
+        // 7 == size, 9 == mtime, see http://php.net/stat
+        $key = "{$key}$file $stats[7] $stats[9],";
+      } else {
+        Kohana::log("warn", "Javascript file missing: " . $file);
+      }
+    }
+
+    $key = md5($key);
+    $file = "tmp/CombinedJavascript_$key";
+    if (!file_exists(VARPATH . $file)) {
+      $contents = '';
+      foreach ($links as $link) {
+        $contents .= file_get_contents($link);
+      }
+      file_put_contents(VARPATH . $file, $contents);
+      if (function_exists("gzencode")) {
+        file_put_contents(VARPATH . "{$file}_gzip", gzencode($contents, 9, FORCE_GZIP));
+      }
     }
-    return empty($links) ? "" : implode("\n", $links);
+
+    return "<script type=\"text/javascript\" src=\"" . url::site("javascript/combined/$key") .
+      "\"></script>";
   }
 
   /**
-- 
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