<?php

/**

 * Smarty Internal Plugin Resource Stream

 * Implements the streams as resource for Smarty template

 *

 * @package    Smarty

 * @subpackage TemplateResources

 * @author     Uwe Tews

 * @author     Rodney Rehm

 */

/**

 * Smarty Internal Plugin Resource Stream

 * Implements the streams as resource for Smarty template

 *

 * @link       http://php.net/streams

 * @package    Smarty

 * @subpackage TemplateResources

 */

class Smarty_Internal_Resource_Stream extends Smarty_Resource_Recompiled {

    /**

     * populate Source Object with meta data from Resource

     *

     * @param Smarty_Template_Source $source source object

     * @param Smarty_Internal_Template $_template template object

     *

     * @return void

     */

    public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null) {

        if (strpos($source->resource, '://') !== false) {

            $source->filepath = $source->resource;

        } else {

            $source->filepath = str_replace(':', '://', $source->resource);

        }

        $source->uid = false;

        $source->content = $this->getContent($source);

        $source->timestamp = false;

        $source->exists = !!$source->content;

    }

    /**

     * Load template's source from stream 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) {

        $t = '';

        // the availability of the stream has already been checked in Smarty_Resource::fetch()

        $fp = fopen($source->filepath, 'r+');

        if ($fp) {

            while (!feof($fp) && ($current_line = fgets($fp)) !== false) {

                $t .= $current_line;

            }

            fclose($fp);

            return $t;

        } else {

            return false;

        }

    }

    /**

     * modify resource_name according to resource handlers specifications

     *

     * @param Smarty $smarty Smarty instance

     * @param string $resource_name resource_name to make unique

     * @param  boolean $isConfig flag for config resource

     *

     * @return string unique resource name

     */

    public function buildUniqueResourceName(Smarty $smarty, $resource_name, $isConfig = false) {

        return get_class($this) . '#' . $resource_name;

    }

}