mirror of
https://github.com/smarty-php/smarty.git
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235 lines
8.8 KiB
PHP
235 lines
8.8 KiB
PHP
<?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 = str_replace(array('\\', '/./'), '/', $source->name);
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if ($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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preg_match('#^((?P<absolute>[\/]|[a-zA-Z]:[\/])|(\[(?P<index>[^\]]+)\])|((?P<rel1>\.[\/])?(?P<rel2>(\.\.[\/])*))|(?P<skip>[\/]))?(?P<file>.+)$#', $file, $fileMatch);
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// go relative to a given template?
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if ($_template && $_template->parent instanceof Smarty_Internal_Template && (!empty($fileMatch['rel1']) || !empty($fileMatch['rel2']))) {
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if ($_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);
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if (!preg_match('/^([\/\\\\]|[a-zA-Z]:[\/\\\\])/', $path)) {
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// the path gained from the parent template is relative to the current working directory
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// as expansions (like include_path) have already been done
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$path = str_replace('\\', '/', getcwd()) . '/' . $path;
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}
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// normalize path
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$path = str_replace(array('\\', './'), array('/', ''), $path);
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// simple relative
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if (!empty($fileMatch['rel1'])) {
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$file = $path . '/' . $fileMatch['file'];
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} else {
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for ($i = 1; $i <= substr_count($fileMatch['rel2'], '../'); $i ++) {
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$path = substr($path, 0, strrpos($path, '/'));
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}
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$file = $path . '/' . $fileMatch['file'];
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}
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// files relative to a template only get one shot
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return $this->fileExists($source, $file) ? $file : false;
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}
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$_filepath = null;
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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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$_filepath = $_directory . $fileMatch['file'];
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if ($this->fileExists($source, $_filepath)) {
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return $_filepath;
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}
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}
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}
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// relative file name?
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if (empty($fileMatch['absolute'])) {
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foreach ($_directories as $_directory) {
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if (empty($fileMatch['rel2'])) {
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$_filepath = $_directory . $fileMatch['file'];
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} else if (false === strpos($_directory, '..')) {
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for ($i = 1; $i <= substr_count($fileMatch['rel2'], '../') + 1; $i ++) {
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$_directory = substr($_directory, 0, strrpos($_directory, '/'));
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}
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$_filepath = $_directory . '/' . $fileMatch['file'];
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} else {
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$_filepath = $_directory . $file;
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}
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if ($this->fileExists($source, $_filepath)) {
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return $_filepath;
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}
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if ($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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if ($this->fileExists($source, $_filepath)) {
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return $_filepath;
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}
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}
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}
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}
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} else {
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// try absolute filepath
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if ($this->fileExists($source, $file)) {
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return $file;
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}
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}
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// Could be relative to cwd
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$path = str_replace('\\', '/', getcwd());
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if (empty($fileMatch['rel2'])) {
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$file = $path . '/' . $fileMatch['file'];
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} else {
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for ($i = 1; $i <= substr_count($fileMatch['rel2'], '../'); $i ++) {
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$path = substr($path, 0, strrpos($path, '/'));
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}
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$file = $path . '/' . $fileMatch['file'];
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}
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if ($this->fileExists($source, $file)) {
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return $file;
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}
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// give up
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$source->timestamp = false;
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return $source->exists = false;
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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, $file)
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{
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if (is_file($file)) {
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$source->timestamp = filemtime($file);
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return $source->exists = true;
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}
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return false;
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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->uid = sha1(getcwd() . $source->filepath);
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if ($source->smarty->compile_check && !isset($source->timestamp)) {
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$source->timestamp = @filemtime($source->filepath);
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$source->exists = !!$source->timestamp;
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}
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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 = @filemtime($source->filepath);
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$source->exists = !!$source->timestamp;
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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 $source)
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{
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$_file = $source->name;
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if (($_pos = strpos($_file, ']')) !== false) {
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$_file = substr($_file, $_pos + 1);
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}
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return basename($_file);
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}
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}
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