- speed up templates parsing

program/include/rcube_html_page.php

@@ -39,6 +39,7 @@ class rcube_html_page
     protected $header = '';
     protected $footer = '';
     protected $body = '';
+    protected $base_path = '';
 
 
     /** Constructor */
@@ -196,14 +197,14 @@ class rcube_html_page
         }
 
         // find page header
-        if ($hpos = strpos(strtolower($output), '</head>')) {
+        if ($hpos = stripos($output, '</head>')) {
             $__page_header .= "\n";
         }
         else {
             if (!is_numeric($hpos)) {
-                $hpos = strpos(strtolower($output), '<body');
+                $hpos = stripos($output, '<body');
             }
-            if (!is_numeric($hpos) && ($hpos = strpos(strtolower($output), '<html'))) {
+            if (!is_numeric($hpos) && ($hpos = stripos($output, '<html'))) {
                 while ($output[$hpos] != '>') {
                     $hpos++;
                 }
@@ -221,14 +222,14 @@ class rcube_html_page
         }
 
         // find page body
-        if ($bpos = strpos(strtolower($output), '<body')) {
+        if ($bpos = stripos($output, '<body')) {
             while ($output[$bpos] != '>') {
                 $bpos++;
             }
             $bpos++;
         }
         else {
-            $bpos = strpos(strtolower($output), '</head>')+7;
+            $bpos = stripos($output, '</head>')+7;
         }
 
         // add page body
@@ -237,8 +238,7 @@ class rcube_html_page
         }
 
         // find and add page footer
-        $output_lc = strtolower($output);
-        if (($fpos = strrpos($output_lc, '</body>')) || ($fpos = strrpos($output_lc, '</html>'))) {
+        if (($fpos = strripos($output, '</body>')) || ($fpos = strripos($output, '</html>'))) {
             $output = substr($output, 0, $fpos) . "$__page_footer\n" . substr($output, $fpos);
         }
         else {
@@ -248,9 +248,11 @@ class rcube_html_page
         // reset those global vars
         $__page_header = $__page_footer = '';
 
+	$this->base_path = $base_path;
         // correct absolute paths in images and other tags
-        $output = preg_replace('!(src|href|background)=(["\']?)(/[a-z0-9_-]+)!i', "\\1=\\2$base_path\\3", $output);
-        $output = preg_replace_callback('!(src|href)=(["\']?)([a-z0-9/_.-]+.(css|js))(["\'\s>])!i', array($this, 'add_filemtime'), $output);
+	// add timestamp to .js and .css filename
+        $output = preg_replace_callback('!(src|href|background)=(["\']?)([a-z0-9/_.-]+)(["\'\s>])!i',
+	    array($this, 'file_callback'), $output);
         $output = str_replace('$__skin_path', $base_path, $output);
 
         if ($this->charset != RCMAIL_CHARSET)
@@ -262,9 +264,19 @@ class rcube_html_page
     /**
      * Callback function for preg_replace_callback in write()
      */
-    public function add_filemtime($matches)
+    private function file_callback($matches)
     {
-        return sprintf("%s=%s%s?s=%d%s", $matches[1], $matches[2], $matches[3], @filemtime($matches[3]), $matches[5]);
+	$file = $matches[3];
+
+        // correct absolute paths
+	if ($file[0] == '/')
+	    $file = $this->base_path . $file;
+
+        // add file modification timestamp
+	if (preg_match('/\.(js|css)$/', $file))
+    	    $file .= '?s=' . @filemtime($file);
+
+	return sprintf("%s=%s%s%s", $matches[1], $matches[2], $file, $matches[4]);
     }
 }