/**
* Processes a raw template for conditionals, phrases etc into PHP code for eval()
*
* @param string Template
*
* @return string
*/
function compile_template($template, &$errors = array())
{
$orig_template = $template;
$template = preg_replace('#[\\x00-\\x08\\x0B\\x0C\\x0E-\\x1F]#', '', $template);
$new_syntax = (strpos($template, '<vb:') !== false OR strpos($template, '{vb:') !== false);
$old_syntax = (strpos($template, '<if') !== false OR strpos($template, '<phrase') !== false);
$maybe_old_syntax = preg_match('/(^|[^{])\$[a-z0-9_]+\[?/si', $template);
if (!$new_syntax AND ($old_syntax OR $maybe_old_syntax))
{
$template = addslashes($template);
$template = process_template_conditionals($template);
$template = process_template_phrases('phrase', $template, 'parse_phrase_tag');
$template = process_seo_urls($template);
if (!function_exists('replace_template_variables') OR !function_exists('validate_string_for_interpolation'))
{
require_once(DIR . '/includes/functions_misc.php');
}
//only check the old style syntax, the new style doesn't use string interpolation and isn't affected
//by this exploit. The new syntax doesn't 100% pass this check.
if(!validate_string_for_interpolation($template))
{
global $vbphrase;
echo "<p> </p><p> </p>";
print_form_header('', '', 0, 1, '', '65%');
print_table_header($vbphrase['vbulletin_message']);
print_description_row($vbphrase['template_text_not_safe']);
print_table_footer(2, construct_button_code($vbphrase['go_back'], 'javascript:history.back(1)'));
print_cp_footer();
exit;
}
$template = replace_template_variables($template, false);
$template = str_replace('\\\\$', '\\$', $template);
if (function_exists('token_get_all'))
{
$tokens = @token_get_all('<?php $var = "' . $template . '"; ?>');
foreach ($tokens AS $token)
{
if (is_array($token))
{
switch ($token[0])
{
case T_INCLUDE:
case T_INCLUDE_ONCE:
case T_REQUIRE:
case T_REQUIRE_ONCE:
{
global $vbphrase;
echo "<p> </p><p> </p>";
print_form_header('', '', 0, 1, '', '65%');
print_table_header($vbphrase['vbulletin_message']);
print_description_row($vbphrase['file_inclusion_not_permitted']);
print_table_footer(2, construct_button_code($vbphrase['go_back'], 'javascript:history.back(1)'));
print_cp_footer();
exit;
}
}
}
}
}
}
else
{
require_once(DIR . '/includes/class_template_parser.php');
$parser = new vB_TemplateParser($orig_template);
try
{
$parser->validate($errors);
}
catch (vB_Exception_TemplateFatalError $e)
{
global $vbphrase;
echo "<p> </p><p> </p>";
print_form_header('', '', 0, 1, '', '65%');
print_table_header($vbphrase['vbulletin_message']);
print_description_row($vbphrase[$e->getMessage()]);
print_table_footer(2, construct_button_code($vbphrase['go_back'], 'javascript:history.back(1)'));
print_cp_footer();
exit;
}
$template = $parser->compile();
// TODO: Reimplement these - if done, $session[], $bbuserinfo[], $vboptions will parse in the template without using {vb:raw, which isn't what we
// necessarily want to happen
/*
if (!function_exists('replace_template_variables'))
{
require_once(DIR . '/includes/functions_misc.php');
}
$template = replace_template_variables($template, false);
*/
}
if (function_exists('verify_demo_template'))
{
verify_demo_template($template);
}
($hook = vBulletinHook::fetch_hook('template_compile')) ? eval($hook) : false;
return $template;
}
/**
* Compile a template.
*
* @param string $template_un The uncompiled content of a template.
*/
public function compile($template, $forcesaveonerror)
{
// @todo
// Incorrect hack warning!!!
// The legacy code in class_template_parser.php needs this to be set
// but it apparrently does not actually need to be an instance of the
// legacy db class for purposes of compiling a template.
if (empty($GLOBALS['vbulletin']->db)) {
$GLOBALS['vbulletin']->db = false;
}
require_once DIR . '/includes/class_template_parser.php';
require_once DIR . '/includes/adminfunctions_template.php';
// Required for check_template_errors()
$parser = new vB_TemplateParser($template);
try {
$parser->validate($errors);
} catch (vB_Exception_TemplateFatalError $e) {
throw new vB_Exception_Api($e->getMessage());
}
$template = $parser->compile();
// This is a comment from vB4 moved here. Need to figure out what replace_template_variables
// is supposed to do.
// TODO: Reimplement these - if done, $session[], $bbuserinfo[], $vboptions
// will parse in the template without using {vb:raw, which isn't what we
// necessarily want to happen
/*
if (!function_exists('replace_template_variables'))
{
require_once(DIR . '/includes/functions_misc.php');
}
$template = replace_template_variables($template, false);
*/
if (function_exists('verify_demo_template')) {
verify_demo_template($template);
}
// Legacy Hook 'template_compile' Removed //
if (!$forcesaveonerror and !empty($errors)) {
throw new vB_Exception_Api('template_compile_error', array($errors));
}
//extra set of error checking. This can be skipped in many situations.
if (!$forcesaveonerror) {
$errors = check_template_errors($template);
if (!empty($errors)) {
$vb5_config =& vB::getConfig();
if (!is_array($errors) and $vb5_config['Misc']['debug']) {
// show compiled template code with line numbers to debug the problem
$errors .= '<h4>Compiled Template Code:</h4><div style="height:200px; overflow:auto; border:1px solid silver; font-style:normal; font-family:Courier New;"><ol><li>' . implode('</li><li>', explode("\n", htmlspecialchars($template))) . '</li></ol></div>';
}
throw new vB_Exception_Api('template_eval_error', array($errors));
}
}
return $template;
}