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ReadFromUrl.php
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ReadFromUrl.php
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<?php
/**
* Contao Open Source CMS, Copyright (C) 2005-2017 Leo Feyer
*
* PHP version 5
* @copyright Christopher Pleines 2005
* @author Christopher Pleines <chris@pleinesoft.de>
* @package Frontend
* @license LGPL
* @filesource
*
* Module readfromurl3
* @copyright Glen Langer 2017 <http://contao.ninja>
* @author Glen Langer (BugBuster)
*/
/**
* Run in a custom namespace, so the class can be replaced
*/
namespace BugBuster\RFU3;
/**
* Class ReadFromUrl
*
* @copyright Christopher Pleines
* @author Christopher Pleines
* @package Controller
*/
class ReadFromUrl extends \ContentElement
{
/**
* Template
* @var string
*/
protected $strTemplate = 'rfu_content';
protected $url = '';
/**
* Display a wildcard in the back end
* @return string
*/
public function generate()
{
if (TL_MODE == 'BE')
{
$objTemplate = new \BackendTemplate('be_wildcard');
$objTemplate->wildcard = '### ReadFromUrl Module ###';
return $objTemplate->parse();
}
return parent::generate();
}
public function __construct($objElement=null, $strColumn='main')
{
if ($objElement !== null)
{
parent::__construct($objElement, $strColumn);
}
}
/**
* Replace Insert Tags
* - {{request_vars}} => $GLOBALS['_REQUEST'] url-conformed
*/
public function replaceInsertTagsRfu3($strTag)
{
if ($strTag != 'request_vars')
{
return false; // nicht für uns
}
return http_build_query($GLOBALS['_REQUEST']);
}
/**
* Compile module
*/
protected function compile()
{
if ($this->readfromurl_template)
{
$this->strTemplate = $this->readfromurl_template;
}
$this->Template = new \FrontendTemplate($this->strTemplate);
// Replace insert tags/entity decode
$this->url = html_entity_decode($this->replaceInsertTags($this->readfromurl));
switch ($this->readfromurl_source):
case 'rfu_content':
$this->read_content();
break;
case 'rfu_serialized':
$this->read_serialized();
break;
case 'rfu_xml':
$this->read_xml();
break;
endswitch;
}
/**
* Read raw data from $this->url
*/
private function read_rawdata()
{
$options = array(
'http' => array(
'max_redirects' => 10, // stop after 10 redirects
'timeout' => 120, // timeout on response
)
);
$context = stream_context_create( $options );
$url_content = @file_get_contents($this->url, false, $context);
if (!$url_content)
{
$this->log('ReadFromURL: Could not read from URL ' . $this->url, 'ReadFromUrl read_rawdata()', TL_ERROR);
}
return $url_content;
}
/**
* Process simple content
*/
private function read_content()
{
$url_content = $this->read_rawdata();
if ($this->encode_utf8) $url_content = utf8_encode($url_content);
if ($this->decode_utf8) $url_content = utf8_decode($url_content);
$this->Template->url_content = $url_content;
}
/**
* Process serialized content
*/
private function read_serialized()
{
$url_content = $this->read_rawdata();
$arr = @unserialize($url_content);
if (!$arr)
{
$this->log('ReadFromURL: Could not unserialize Array/Object from ' . $this->url, 'ReadFromUrl read_serialized()', TL_ERROR);
}
$this->Template->url_content = $arr;
}
/**
* Process XML content
*/
private function read_xml()
{
$url_content = $this->read_rawdata();
$xml = @simplexml_load_string($url_content);
if (!xml)
{
$this->log('ReadFromURL: Could not read valid XML from ' . $this->url, 'ReadFromUrl read_xml()', TL_ERROR);
}
$this->Template->url_content = $xml;
}
}