217 lines
7.6 KiB
PHP
217 lines
7.6 KiB
PHP
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<?php
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/**
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* Smarty Internal Plugin Resource File
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*
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* @package Smarty
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* @subpackage TemplateResources
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* @author Uwe Tews
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* @author Rodney Rehm
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*/
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/**
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* Smarty Internal Plugin Resource File
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* Implements the file system as resource for Smarty templates
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*
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* @package Smarty
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* @subpackage TemplateResources
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*/
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class Smarty_Internal_Resource_File extends Smarty_Resource
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{
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/**
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* build template filepath by traversing the template_dir array
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*
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* @param Smarty_Template_Source $source source object
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* @param Smarty_Internal_Template $_template template object
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*
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* @return string fully qualified filepath
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* @throws SmartyException
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*/
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protected function buildFilepath(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
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{
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$file = $source->name;
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preg_match('#^(?P<absolute>[\\\/]|[a-zA-Z]:[\\\/])|(\[(?P<index>[^\]]+)\])|(?P<rel>\.[\\\/])#', $file, $fileMatch);
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// save basename
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if (!empty($fileMatch['absolute'])) {
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$file = $this->normalizePath($file);
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return is_file($file) ? $file : false;
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}
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// go relative to a given template?
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if (!empty($fileMatch['rel']) && $_template && $_template->parent instanceof Smarty_Internal_Template) {
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if ($_template->parent->source->type != 'file' && $_template->parent->source->type != 'extends' && !$_template->parent->allow_relative_path) {
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throw new SmartyException("Template '{$file}' cannot be relative to template of resource type '{$_template->parent->source->type}'");
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}
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$path = dirname($_template->parent->source->filepath) . DS . $file;
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// normalize path
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$path = $this->normalizePath($path);
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// files relative to a template only get one shot
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return is_file($path) ? $path : false;
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}
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if ($source->isConfig) {
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$_directories = $source->smarty->getConfigDir();
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} else {
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$_directories = $source->smarty->getTemplateDir();
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}
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// template_dir index?
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if (!empty($fileMatch['index'])) {
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$index = $fileMatch['index'];
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$_directory = null;
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// try string indexes
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if (isset($_directories[$index])) {
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$_directory = $_directories[$index];
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} elseif (is_numeric($index)) {
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// try numeric index
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$index = (int) $index;
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if (isset($_directories[$index])) {
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$_directory = $_directories[$index];
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} else {
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// try at location index
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$keys = array_keys($_directories);
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$_directory = $_directories[$keys[$index]];
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}
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}
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if ($_directory) {
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preg_match('#\](.+)$#', $file, $fileMatch);
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$path = $_directory . $fileMatch[1];
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$path = $this->normalizePath($path);
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if (is_file($path)) {
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return $path;
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}
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} else {
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// index not found
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return false;
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}
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}
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// relative file name?
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foreach ($_directories as $_directory) {
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$_filepath = $_directory . $file;
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$path = $this->normalizePath($_filepath);
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if (is_file($path)) {
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return $path;
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}
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if ($source->smarty->use_include_path && !preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $_directory)) {
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// try PHP include_path
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if (function_exists('stream_resolve_include_path')) {
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$_filepath = stream_resolve_include_path($_filepath);
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} else {
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$_filepath = Smarty_Internal_Get_Include_Path::getIncludePath($_filepath);
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}
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if ($_filepath !== false) {
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$path = $this->normalizePath($_filepath);
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if (is_file($path)) {
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return $path;
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}
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}
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}
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}
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// Could be relative to cwd
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$path = $this->normalizePath(getcwd() . DS . $file);
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return is_file($path) ? $path : false;
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}
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/**
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* Normalize path
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* - remove /./ and /../
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* - make it absolute
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*
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* @param string $path file path
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*
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* @return string
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*/
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public function normalizePath($path)
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{
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if ($path[0] == '.') {
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$path = getcwd() . DS . $path;
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}
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$path = preg_replace('#[\\\/]+([.][\\\/]+)*#', DS, $path);
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while (strrpos($path, '.' . DS) !== false) {
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$path = preg_replace('#([\\\/]([^\\\/]+[\\\/]){2}([.][.][\\\/]){2})|([\\\/][^\\\/]+[\\\/][.][.][\\\/])#', DS, $path);
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}
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return $path;
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}
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/**
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* test is file exists and save timestamp
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*
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* @param Smarty_Template_Source $source source object
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* @param string $file file name
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*
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* @return bool true if file exists
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*/
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protected function fileExists(Smarty_Template_Source $source, $file)
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{
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$source->timestamp = is_file($file) ? @filemtime($file) : false;
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return $source->exists = !!$source->timestamp;
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}
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/**
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* populate Source Object with meta data from Resource
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*
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* @param Smarty_Template_Source $source source object
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* @param Smarty_Internal_Template $_template template object
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*/
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public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
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{
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$source->filepath = $this->buildFilepath($source, $_template);
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if ($source->filepath !== false) {
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if (is_object($source->smarty->security_policy)) {
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$source->smarty->security_policy->isTrustedResourceDir($source->filepath);
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}
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$source->exists = true;
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$source->uid = sha1($source->filepath);
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if ($source->smarty->compile_check && !isset($source->timestamp)) {
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$source->timestamp = @filemtime($source->filepath);
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}
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} else {
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$source->timestamp = false;
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$source->exists = false;
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}
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}
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/**
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* populate Source Object with timestamp and exists from Resource
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*
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* @param Smarty_Template_Source $source source object
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*/
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public function populateTimestamp(Smarty_Template_Source $source)
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{
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$source->timestamp = $source->exists = is_file($source->filepath);
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if ($source->exists) {
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$source->timestamp = @filemtime($source->filepath);
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}
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}
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/**
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* Load template's source from file into current template object
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*
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* @param Smarty_Template_Source $source source object
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*
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* @return string template source
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* @throws SmartyException if source cannot be loaded
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*/
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public function getContent(Smarty_Template_Source $source)
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{
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if ($source->timestamp) {
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return file_get_contents($source->filepath);
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}
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if ($source instanceof Smarty_Config_Source) {
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throw new SmartyException("Unable to read config {$source->type} '{$source->name}'");
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}
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throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
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}
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/**
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* Determine basename for compiled filename
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*
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* @param Smarty_Template_Source $source source object
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*
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* @return string resource's basename
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*/
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public function getBasename(Smarty_Template_Source $source)
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{
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return basename($source->filepath);
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}
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}
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