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<?php
/**
* Smarty Internal Plugin Resource File
*
* @package Smarty
* @subpackage TemplateResources
* @author Uwe Tews
* @author Rodney Rehm
*/
/**
* Smarty Internal Plugin Resource File
* Implements the file system as resource for Smarty templates
*
* @package Smarty
* @subpackage TemplateResources
*/
class Smarty_Internal_Resource_File extends Smarty_Resource
{
/**
* build template filepath by traversing the template_dir array
*
* @param Smarty_Template_Source $source source object
* @param Smarty_Internal_Template $_template template object
*
* @return string fully qualified filepath
* @throws SmartyException
*/
protected function buildFilepath(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
{
$file = str_replace(array('\\', '/./'), '/', $source->name);
if ($source->isConfig) {
$_directories = $source->smarty->getConfigDir();
} else {
$_directories = $source->smarty->getTemplateDir();
}
preg_match('#^((?P<absolute>[\/]|[a-zA-Z]:[\/])|(\[(?P<index>[^\]]+)\])|((?P<rel1>\.[\/])?(?P<rel2>(\.\.[\/])*))|(?P<skip>[\/]))?(?P<file>.+)$#', $file, $fileMatch);
// save basename
if (!empty($fileMatch['absolute'])) {
return is_file($file) ? $file : false;
}
// go relative to a given template?
if ($_template && $_template->parent instanceof Smarty_Internal_Template && (!empty($fileMatch['rel1']) || !empty($fileMatch['rel2']))) {
if ($_template->parent->source->type != 'file' && $_template->parent->source->type != 'extends' && !$_template->parent->allow_relative_path) {
throw new SmartyException("Template '{$file}' cannot be relative to template of resource type '{$_template->parent->source->type}'");
}
$path = dirname($_template->parent->source->filepath);
if (!preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $path)) {
// the path gained from the parent template is relative to the current working directory
// as expansions (like include_path) have already been done
$path = str_replace('\\', '/', getcwd()) . '/' . $path;
}
// normalize path
$path = str_replace(array('\\', './'), array('/', ''), $path);
// simple relative
if (!empty($fileMatch['rel1'])) {
$file = $path . '/' . $fileMatch['file'];
} else {
for ($i = 1; $i <= substr_count($fileMatch['rel2'], '../'); $i ++) {
$path = substr($path, 0, strrpos($path, '/'));
}
$file = $path . '/' . $fileMatch['file'];
}
// files relative to a template only get one shot
return is_file($file) ? $file : false;
}
$_filepath = null;
// template_dir index?
if (!empty($fileMatch['index'])) {
$index = $fileMatch['index'];
$_directory = null;
// try string indexes
if (isset($_directories[$index])) {
$_directory = $_directories[$index];
} elseif (is_numeric($index)) {
// try numeric index
$index = (int) $index;
if (isset($_directories[$index])) {
$_directory = $_directories[$index];
} else {
// try at location index
$keys = array_keys($_directories);
$_directory = $_directories[$keys[$index]];
}
}
if ($_directory) {
$_filepath = $_directory . $fileMatch['file'];
if (is_file($_filepath)) {
return $_filepath;
}
}
}
// relative file name?
foreach ($_directories as $_directory) {
if (empty($fileMatch['rel2'])) {
$_filepath = $_directory . $fileMatch['file'];
} else {
if (false === strpos($_directory, '..')) {
for ($i = 1; $i <= substr_count($fileMatch['rel2'], '../') + 1; $i ++) {
$_directory = substr($_directory, 0, strrpos($_directory, '/'));
}
$_filepath = $_directory . '/' . $fileMatch['file'];
} else {
$_filepath = $_directory . $file;
}
}
if (is_file($_filepath)) {
return $_filepath;
}
if ($source->smarty->use_include_path && !preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $_directory)) {
// try PHP include_path
if (function_exists('stream_resolve_include_path')) {
$_filepath = stream_resolve_include_path($_filepath);
} else {
$_filepath = Smarty_Internal_Get_Include_Path::getIncludePath($_filepath);
}
if ($_filepath !== false) {
if (is_file($_filepath)) {
return $_filepath;
}
}
}
}
// Could be relative to cwd
$path = str_replace('\\', '/', getcwd());
if (empty($fileMatch['rel2'])) {
$file = $path . '/' . $fileMatch['file'];
} else {
for ($i = 1; $i <= substr_count($fileMatch['rel2'], '../'); $i ++) {
$path = substr($path, 0, strrpos($path, '/'));
}
$file = $path . '/' . $fileMatch['file'];
}
return is_file($file) ? $file : false;
}
/**
* test is file exists and save timestamp
*
* @param Smarty_Template_Source $source source object
* @param string $file file name
*
* @return bool true if file exists
*/
protected function fileExists(Smarty_Template_Source $source, $file)
{
$source->timestamp = is_file($file) ? @filemtime($file) : false;
return $source->exists = !!$source->timestamp;
}
/**
* populate Source Object with meta data from Resource
*
* @param Smarty_Template_Source $source source object
* @param Smarty_Internal_Template $_template template object
*/
public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
{
$source->filepath = $this->buildFilepath($source, $_template);
if ($source->filepath !== false) {
if (is_object($source->smarty->security_policy)) {
$source->smarty->security_policy->isTrustedResourceDir($source->filepath);
}
$source->uid = sha1(getcwd() . $source->filepath);
if ($source->smarty->compile_check && !isset($source->timestamp)) {
$source->timestamp = $source->exists = is_file($source->filepath);
if ($source->exists) {
$source->timestamp = @filemtime($source->filepath);
}
}
} else {
$source->timestamp = false;
$source->exists = false;
}
}
/**
* populate Source Object with timestamp and exists from Resource
*
* @param Smarty_Template_Source $source source object
*/
public function populateTimestamp(Smarty_Template_Source $source)
{
$source->timestamp = $source->exists = is_file($source->filepath);
if ($source->exists) {
$source->timestamp = @filemtime($source->filepath);
}
}
/**
* Load template's source from file into current template object
*
* @param Smarty_Template_Source $source source object
*
* @return string template source
* @throws SmartyException if source cannot be loaded
*/
public function getContent(Smarty_Template_Source $source)
{
if ($source->timestamp) {
return file_get_contents($source->filepath);
}
if ($source instanceof Smarty_Config_Source) {
throw new SmartyException("Unable to read config {$source->type} '{$source->name}'");
}
throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
}
/**
* Determine basename for compiled filename
*
* @param Smarty_Template_Source $source source object
*
* @return string resource's basename
*/
public function getBasename(Smarty_Template_Source $source)
{
return basename($source->filepath);
}
}