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<?php
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/**
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* Smarty Resource Plugin
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*
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* @package Smarty
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* @subpackage TemplateResources
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* @author Rodney Rehm
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*/
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/**
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* Smarty Resource Plugin
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*
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* Wrapper Implementation for custom resource plugins
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*
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* @package Smarty
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* @subpackage TemplateResources
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*/
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abstract class Smarty_Resource_Custom extends Smarty_Resource {
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/**
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* fetch template and its modification time from data source
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*
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* @param string $name template name
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* @param string &$source template source
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* @param integer &$mtime template modification timestamp (epoch)
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*/
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protected abstract function fetch($name, &$source, &$mtime);
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/**
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* Fetch template's modification timestamp from data source
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*
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* {@internal implementing this method is optional.
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* Only implement it if modification times can be accessed faster than loading the complete template source.}}
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*
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* @param string $name template name
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* @return integer|boolean timestamp (epoch) the template was modified, or false if not found
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*/
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protected function fetchTimestamp($name)
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{
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return null;
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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 = strtolower($source->type . ':' . $source->name);
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$source->uid = sha1($source->type . ':' . $source->name);
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$mtime = $this->fetchTimestamp($source->name);
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if ($mtime !== null) {
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$source->timestamp = $mtime;
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} else {
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$this->fetch($source->name, $content, $timestamp);
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$source->timestamp = isset($timestamp) ? $timestamp : false;
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if( isset($content) )
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$source->content = $content;
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}
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$source->exists = !!$source->timestamp;
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}
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/**
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* Load template's source into current template object
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*
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* @param Smarty_Template_Source $source source object
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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 $source)
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{
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$this->fetch($source->name, $content, $timestamp);
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if (isset($content)) {
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return $content;
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}
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throw new SmartyException("Unable to read template {$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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* @return string resource's basename
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*/
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protected function getBasename(Smarty_Template_Source $source)
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{
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return basename($source->name);
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}
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}
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?> |