From 85e65c3c7672d0e56ada988a047f0f602ba0c964 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 11 Jun 2013 03:41:02 -0400
Subject: [PATCH] Improvements to PR merge "add option show_real_foldernames"

---
 program/include/rcmail_output_html.php |   46 +++++++++++++++++++++++++++++++---------------
 1 files changed, 31 insertions(+), 15 deletions(-)

diff --git a/program/include/rcmail_output_html.php b/program/include/rcmail_output_html.php
index 6100269..29a86b9 100644
--- a/program/include/rcmail_output_html.php
+++ b/program/include/rcmail_output_html.php
@@ -67,6 +67,7 @@
         //$this->framed = $framed;
         $this->set_env('task', $task);
         $this->set_env('x_frame_options', $this->config->get('x_frame_options', 'sameorigin'));
+        $this->set_env('standard_windows', (bool) $this->config->get('standard_windows'));
 
         // add cookie info
         $this->set_env('cookie_domain', ini_get('session.cookie_domain'));
@@ -655,7 +656,7 @@
     protected function file_callback($matches)
     {
         $file = $matches[3];
-        $file[0] = preg_replace('!^/this/!', '/', $file[0]);
+        $file = preg_replace('!^/this/!', '/', $file);
 
         // correct absolute paths
         if ($file[0] == '/') {
@@ -731,14 +732,13 @@
     /**
      * Determines if a given condition is met
      *
-     * @todo   Get rid off eval() once I understand what this does.
      * @todo   Extend this to allow real conditions, not just "set"
      * @param  string Condition statement
      * @return boolean True if condition is met, False if not
      */
     protected function check_condition($condition)
     {
-        return eval("return (".$this->parse_expression($condition).");");
+        return $this->eval_expression($condition);
     }
 
 
@@ -760,14 +760,15 @@
 
 
     /**
-     * Parses expression and replaces variables
+     * Parse & evaluate a given expression and return its result.
      *
-     * @param  string Expression statement
-     * @return string Expression value
+     * @param string Expression statement
+     *
+     * @return mixed Expression result
      */
-    protected function parse_expression($expression)
+    protected function eval_expression ($expression)
     {
-        return preg_replace(
+        $expression = preg_replace(
             array(
                 '/session:([a-z0-9_]+)/i',
                 '/config:([a-z0-9_]+)(:([a-z0-9_]+))?/i',
@@ -779,14 +780,29 @@
             ),
             array(
                 "\$_SESSION['\\1']",
-                "\$this->app->config->get('\\1',rcube_utils::get_boolean('\\3'))",
-                "\$this->env['\\1']",
+                "\$app->config->get('\\1',rcube_utils::get_boolean('\\3'))",
+                "\$env['\\1']",
                 "rcube_utils::get_input_value('\\1', rcube_utils::INPUT_GPC)",
                 "\$_COOKIE['\\1']",
-                "\$this->browser->{'\\1'}",
+                "\$browser->{'\\1'}",
                 $this->template_name,
             ),
-            $expression);
+            $expression
+        );
+
+        $fn = create_function('$app,$browser,$env', "return ($expression);");
+        if (!$fn) {
+            rcube::raise_error(array(
+                'code' => 505,
+                'type' => 'php',
+                'file' => __FILE__,
+                'line' => __LINE__,
+                'message' => "Expression parse error on: ($expression)"), true, false);
+
+            return null;
+        }
+
+        return $fn($this->app, $this->browser, $this->env);
     }
 
 
@@ -839,7 +855,7 @@
             // show a label
             case 'label':
                 if ($attrib['expression'])
-                    $attrib['name'] = eval("return " . $this->parse_expression($attrib['expression']) .";");
+                    $attrib['name'] = $this->eval_expression($attrib['expression']);
 
                 if ($attrib['name'] || $attrib['command']) {
                     // @FIXME: 'noshow' is useless, remove?
@@ -873,6 +889,7 @@
             // include a file
             case 'include':
                 $old_base_path = $this->base_path;
+                if (!empty($attrib['skin_path'])) $attrib['skinpath'] = $attrib['skin_path'];
                 if ($path = $this->get_skin_file($attrib['file'], $skin_path, $attrib['skinpath'])) {
                     $this->base_path = preg_replace('!plugins/\w+/!', '', $skin_path);  // set base_path to core skin directory (not plugin's skin)
                     $path = realpath($path);
@@ -970,8 +987,7 @@
 
             // return code for a specified eval expression
             case 'exp':
-                $value = $this->parse_expression($attrib['expression']);
-                return eval("return html::quote($value);");
+                return html::quote($this->eval_expression($attrib['expression']));
 
             // return variable
             case 'var':

--
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