<?php 
/** 
 * Smarty Internal Plugin Resource String 
 * 
 * @package    Smarty 
 * @subpackage TemplateResources 
 * @author     Uwe Tews 
 * @author     Rodney Rehm 
 */ 
 
/** 
 * Smarty Internal Plugin Resource String 
 * Implements the strings as resource for Smarty template 
 * {@internal unlike eval-resources the compiled state of string-resources is saved for subsequent access}} 
 * 
 * @package    Smarty 
 * @subpackage TemplateResources 
 */ 
class Smarty_Internal_Resource_String extends Smarty_Resource 
{ 
    /** 
     * 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) 
    { 
        $source->uid = $source->filepath = sha1($source->name); 
        $source->timestamp = 0; 
        $source->exists = true; 
    } 
 
    /** 
     * Load template's source from $resource_name into current template object 
     * 
     * @uses decode() to decode base64 and urlencoded template_resources 
     * 
     * @param  Smarty_Template_Source $source source object 
     * 
     * @return string                 template source 
     */ 
    public function getContent(Smarty_Template_Source $source) 
    { 
        return $this->decode($source->name); 
    } 
 
    /** 
     * decode base64 and urlencode 
     * 
     * @param  string $string template_resource to decode 
     * 
     * @return string decoded template_resource 
     */ 
    protected function decode($string) 
    { 
        // decode if specified 
        if (($pos = strpos($string, ':')) !== false) { 
            if (!strncmp($string, 'base64', 6)) { 
                return base64_decode(substr($string, 7)); 
            } elseif (!strncmp($string, 'urlencode', 9)) { 
                return urldecode(substr($string, 10)); 
            } 
        } 
 
        return $string; 
    } 
 
    /** 
     * modify resource_name according to resource handlers specifications 
     * 
     * @param  Smarty  $smarty        Smarty instance 
     * @param  string  $resource_name resource_name to make unique 
     * @param  boolean $is_config     flag for config resource 
     * 
     * @return string unique resource name 
     */ 
    protected function buildUniqueResourceName(Smarty $smarty, $resource_name, $is_config = false) 
    { 
        return get_class($this) . '#' . $this->decode($resource_name); 
    } 
 
    /** 
     * Determine basename for compiled filename 
     * Always returns an empty string. 
     * 
     * @param  Smarty_Template_Source $source source object 
     * 
     * @return string                 resource's basename 
     */ 
    protected function getBasename(Smarty_Template_Source $source) 
    { 
        return ''; 
    } 
} 
 
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