From 5499336feff22f682448dd99cc00a9b36701fcd1 Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Tue, 21 Jul 2009 12:02:33 -0400
Subject: [PATCH] Use global request tokens and automatically protect all POST requests
---
program/include/rcube_template.php | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 53 insertions(+), 3 deletions(-)
diff --git a/program/include/rcube_template.php b/program/include/rcube_template.php
index 3825080..0947944 100755
--- a/program/include/rcube_template.php
+++ b/program/include/rcube_template.php
@@ -59,6 +59,7 @@
//$this->framed = $framed;
$this->set_env('task', $task);
+ $this->set_env('request_token', $this->app->get_request_token());
// load the correct skin (in case user-defined)
$this->set_skin($this->config['skin']);
@@ -325,6 +326,9 @@
$js = $this->framed ? "if(window.parent) {\n" : '';
$js .= $this->get_js_commands() . ($this->framed ? ' }' : '');
$this->add_script($js, 'head_top');
+
+ // make sure all <form> tags have a valid request token
+ $template = preg_replace_callback('/<form\s+([^>]+)>/Ui', array($this, 'alter_form_tag'), $template);
// call super method
parent::write($template, $this->config['skin_path']);
@@ -514,7 +518,24 @@
*/
private function check_condition($condition)
{
- return eval("return (".$this->parse_expression($condition).");");
+ return eval("return (".$this->parse_expression($condition).");");
+ }
+
+
+ /**
+ *
+ */
+ private function alter_form_tag($matches)
+ {
+ $out = $matches[0];
+ $attrib = parse_attrib_string($matches[1]);
+
+ if (strtolower($attrib['method']) == 'post') {
+ $hidden = new html_hiddenfield(array('name' => '_token', 'value' => $this->app->get_request_token()));
+ $out .= "\n" . $hidden->show();
+ }
+
+ return $out;
}
@@ -925,7 +946,7 @@
*/
public function form_tag($attrib, $content = null)
{
- if ($this->framed) {
+ if ($this->framed || !empty($_REQUEST['_framed'])) {
$hiddenfield = new html_hiddenfield(array('name' => '_framed', 'value' => '1'));
$hidden = $hiddenfield->show();
}
@@ -935,7 +956,36 @@
return html::tag('form',
$attrib + array('action' => "./", 'method' => "get"),
- $hidden . $content);
+ $hidden . $content,
+ array('id','class','style','name','method','action','enctype','onsubmit'));
+ }
+
+
+ /**
+ * Build a form tag with a unique request token
+ *
+ * @param array Named tag parameters including 'action' and 'task' values which will be put into hidden fields
+ * @param string Form content
+ * @return string HTML code for the form
+ */
+ public function request_form($attrib, $content = '')
+ {
+ $hidden = new html_hiddenfield();
+ if ($attrib['task']) {
+ $hidden->add(array('name' => '_task', 'value' => $attrib['task']));
+ }
+ if ($attrib['action']) {
+ $hidden->add(array('name' => '_action', 'value' => $attrib['action']));
+ }
+
+ unset($attrib['task'], $attrib['request']);
+ $attrib['action'] = './';
+
+ // we already have a <form> tag
+ if ($attrib['form'])
+ return $hidden->show() . $content;
+ else
+ return $this->form_tag($attrib, $hidden->show() . $content);
}
--
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