more test

webroot/imgf.php

@@ -3,7 +3,6 @@
  * Fast track cache, read entries from the cache before processing image
  * the ordinary way.
  */
-
 // Load the config file or use defaults
 $configFile = __DIR__
     . "/"
@@ -14,10 +13,23 @@ if (is_file($configFile) && is_readable($configFile)) {
     $config = require $configFile;
 } elseif (!isset($config)) {
     $config = array(
+        "debug"      =>  false,
+        "autoloader" =>  __DIR__ . "/../autoload.php",
         "cache_path" =>  __DIR__ . "/../cache/",
     );
 }
 
+// Debug mode needs additional functions
+if (CIMAGE_DEBUG) {
+    require $config["autoloader"];
+}
+
+// Cache path must be valid
+$cacheIsReadable = is_dir($config["cache_path"]) && is_readable($config["cache_path"]);
+if (!$cacheIsReadable) {
+    die("imgf.php: Cache is not readable, check path in configfile.");
+}
+
 // Prepare to check if fast cache should be used
 $cachePath = $config["cache_path"] . "/fasttrack";
 $query = $_GET;
@@ -49,6 +61,9 @@ if ($useCache && is_readable($filename)) {
         if (isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])
             && strtotime($_SERVER["HTTP_IF_MODIFIED_SINCE"]) == $item["last-modified"]) {
             header("HTTP/1.0 304 Not Modified");
+            if (CIMAGE_DEBUG) {
+                trace("imgf 304");
+            }
             exit;
         }
 
@@ -56,6 +71,9 @@ if ($useCache && is_readable($filename)) {
             header($value);
         }
 
+        if (CIMAGE_DEBUG) {
+            trace("imgf 200");
+        }
         readfile($item["source"]);
         exit;
     }