import vhost-audit

template.php

@@ -0,0 +1,176 @@
+<?
+#
+# Read, understand and follow: 
+# http://www.massassi.com/php/articles/template_engines/
+#
+# "In short, the point of template engines should be to separate your business 
+# logic from your presentation logic, not separate your PHP code from your 
+# HTML code."  Amen!
+#
+
+class Template {
+    var $vars; /// Holds all the template variables
+
+    /**
+     * Constructor
+     *
+     * @param $file string the file name you want to load
+     */
+    function Template($file = null) {
+        $this->file = $file;
+    }
+
+    /**
+     * Set a template variable.
+     */
+    function set($name, $value) {
+    	if ( is_object($value) ) {
+    		if ( method_exists($value, 'fetch')) {
+    			$this->vars[$name] = $value->fetch();
+    		}
+    		else {
+				$this->vars[$name] = $value;
+    		}
+    	}
+		else {
+			$this->vars[$name] = $value;
+		}
+    }
+
+    /**
+     * Open, parse, and return the template file.
+     *
+     * @param $file string the template file name
+     */
+    function fetch($file = null) {
+        if(!$file) $file = $this->file;
+
+        extract($this->vars);          // Extract the vars to local namespace
+        ob_start();                    // Start output buffering
+        include($file);                // Include the file
+        $contents = ob_get_contents(); // Get the contents of the buffer
+        ob_end_clean();                // End buffering and discard
+        return $contents;              // Return the contents
+    }
+}
+
+/**
+ * An extension to Template that provides automatic caching of
+ * template contents.
+ */
+class CachedTemplate extends Template {
+    var $cache_id;
+    var $expire;
+    var $cached;
+
+    /**
+     * Constructor.
+     *
+     * @param $cache_id string unique cache identifier
+     * @param $expire int number of seconds the cache will live
+     */
+    function CachedTemplate($cache_id = null, $expire = 900) {
+        $this->Template();
+        $this->cache_id = $cache_id ? 'cache/' . md5($cache_id) : $cache_id;
+        $this->expire   = $expire;
+    }
+
+    /**
+     * Test to see whether the currently loaded cache_id has a valid
+     * corrosponding cache file.
+     */
+    function is_cached() {
+        if($this->cached) return true;
+
+        // Passed a cache_id?
+        if(!$this->cache_id) return false;
+
+        // Cache file exists?
+        if(!file_exists($this->cache_id)) return false;
+
+        // Can get the time of the file?
+        if(!($mtime = filemtime($this->cache_id))) return false;
+
+        // Cache expired?
+        if(($mtime + $this->expire) < time()) {
+            @unlink($this->cache_id);
+            return false;
+        }
+        else {
+            /**
+             * Cache the results of this is_cached() call.  Why?  So
+             * we don't have to double the overhead for each template.
+             * If we didn't cache, it would be hitting the file system
+             * twice as much (file_exists() & filemtime() [twice each]).
+             */
+            $this->cached = true;
+            return true;
+        }
+    }
+
+    /**
+     * This function returns a cached copy of a template (if it exists),
+     * otherwise, it parses it as normal and caches the content.
+     *
+     * @param $file string the template file
+     */
+    function fetch_cache($file) {
+        if($this->is_cached()) {
+            $fp = @fopen($this->cache_id, 'r');
+            $contents = fread($fp, filesize($this->cache_id));
+            fclose($fp);
+            return $contents;
+        }
+        else {
+            $contents = $this->fetch($file);
+
+            // Write the cache
+            if($fp = @fopen($this->cache_id, 'w')) {
+                fwrite($fp, $contents);
+                fclose($fp);
+            }
+            else {
+                die('Unable to write cache.');
+            }
+
+            return $contents;
+        }
+    }
+}
+
+
+# Pass by reference to us less memory
+class RefTemplate extends Template {
+	
+    function RefTemplate ($file=null) {
+        $this->Template($file);
+    }
+
+    function set($name, &$value) {
+    	if ( is_object($value) ) {
+    		if ( method_exists($value, 'fetch')) {
+    			$this->vars[$name] = $value->fetch();
+    		}
+    		else {
+				$this->vars[$name] = $value;
+    		}
+    	}
+		else {
+			$this->vars[$name] = $value;
+		}
+    }
+    
+    function fetch($file = null) {
+        if(!$file) $file = $this->file;
+
+        extract($this->vars, EXTR_REFS); // REFERENCE vars in the local namespace
+        ob_start();                      // Start output buffering
+        include($file);                  // Include the file
+        $contents = ob_get_contents();   // Get the contents of the buffer
+        ob_end_clean();                  // End buffering and discard
+        return $contents;                // Return the contents
+    }
+}
+
+
+?>