From f78dab1c80c27cd64b5e1f967da20fd43c17006d Mon Sep 17 00:00:00 2001
From: thomascube <thomas@roundcube.net>
Date: Fri, 24 Jul 2009 04:29:24 -0400
Subject: [PATCH] Allow some recursion in reder_page hook (#1485977)

---
 program/include/rcube_template.php |   73 ++++++++++++++++++++++++++++++------
 1 files changed, 61 insertions(+), 12 deletions(-)

diff --git a/program/include/rcube_template.php b/program/include/rcube_template.php
index 3825080..ecb5a89 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']);
@@ -288,7 +289,7 @@
     {
         if ($templ != 'iframe') {
             // prevent from endless loops
-            if ($this->app->plugins->is_processing('render_page')) {
+            if ($exit != 'recur' && $this->app->plugins->is_processing('render_page')) {
                 raise_error(array('code' => 505, 'type' => 'php', 'message' => 'Recursion alert: ignoring output->send()'), true, false);
                 return;
             }
@@ -325,6 +326,10 @@
         $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);
+        $this->footer = preg_replace_callback('/<form\s+([^>]+)>/Ui', array($this, 'alter_form_tag'), $this->footer);
 
         // call super method
         parent::write($template, $this->config['skin_path']);
@@ -514,7 +519,24 @@
      */
     private function check_condition($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;
     }
 
 
@@ -789,8 +811,8 @@
         }
 
         // set title to alt attribute for IE browsers
-        if ($this->browser->ie && $attrib['title'] && !$attrib['alt']) {
-            $attrib['alt'] = $attrib['title'];
+        if ($this->browser->ie && !$attrib['title'] && $attrib['alt']) {
+            $attrib['title'] = $attrib['alt'];
         }
 
         // add empty alt attribute for XHTML compatibility
@@ -872,16 +894,15 @@
             $attrib_str = html::attrib_string(
                 $attrib,
                 array(
-                    'style', 'class', 'id', 'width',
-                    'height', 'border', 'hspace',
-                    'vspace', 'align', 'alt', 'tabindex'
+                    'style', 'class', 'id', 'width', 'height', 'border', 'hspace',
+                    'vspace', 'align', 'alt', 'tabindex', 'title'
                 )
             );
             $btn_content = sprintf('<img src="%s"%s />', $this->abs_url($attrib['image']), $attrib_str);
             if ($attrib['label']) {
                 $btn_content .= ' '.$attrib['label'];
             }
-            $link_attrib = array('href', 'onclick', 'onmouseover', 'onmouseout', 'onmousedown', 'onmouseup', 'title', 'target');
+            $link_attrib = array('href', 'onclick', 'onmouseover', 'onmouseout', 'onmousedown', 'onmouseup', 'target');
         }
         else if ($attrib['type']=='link') {
             $btn_content = $attrib['label'] ? $attrib['label'] : $attrib['command'];
@@ -897,8 +918,7 @@
             $attrib_str = html::attrib_string(
                 $attrib,
                 array(
-                    'type', 'value', 'onclick',
-                    'id', 'class', 'style', 'tabindex'
+                    'type', 'value', 'onclick', 'id', 'class', 'style', 'tabindex'
                 )
             );
             $out = sprintf('<input%s disabled="disabled" />', $attrib_str);
@@ -925,7 +945,7 @@
      */
     public function form_tag($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 +955,36 @@
       
       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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