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GeezerVison is showing github.com — plg_getgithubcode/getgithubcode.php at master · JCBR/plg_getgithubcode

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<?php
/**
* Emerson Rocha Luiz { [email protected] - http://fititnt.org }
* Copyright (C) 2005 - 2011 Webdesign Assessoria em Tecnologia da Informacao.
* GPL3
*/
defined('_JEXEC') or die;
jimport('joomla.plugin.plugin');
/**
* GetGitHub Content Plugin
*
* @since 1.6
*/
class plgContentGetgithubcode extends JPlugin
{
/**
* Example prepare content method
*
* Method is called by the view
*
* @param string The context of the content being passed to the plugin.
* @param object The content object. Note $article->text is also available
* @param object The content params
* @param int The 'page' number
* @since 1.6
*/
public function onContentPrepare($context, &$article, &$params, $limitstart)
{
$app = JFactory::getApplication();
// simple performance check to determine whether bot should process further
$tagname = $this->get('tagname', 'github');
if (strpos($article->text, $tagname) === false) {
return true;
}
// expression to search
// {github}https://raw.github.com/example...{/github}
// @todo: rewrite to make able to ask start and end lines
$regex = '~{'.$tagname.'}(.*?){/'.$tagname.'}~i';
$matches = array();
// find all instances of plugin and put in $matches
preg_match_all($regex, $article->text, $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
// $match[0] is full pattern match, $match[1] is the url
$code = $this->_getGithubCode($match[1]);
// We should replace only first occurrence in order to allow positions with the same name to regenerate their content:
$article->text = preg_replace("|$match[0]|", $code, $article->text, 1);
}
return '';
}
/* Function to get get and change the githubcode
* @author Emerson Rocha Luiz
* @var string $url: the url to get. Must be RAW url!
* @var int $start: line to start to show
* @var int $end: last line to show
* @return string $github: the final github code to show
*/
protected function _getGithubCode($url, $start = FALSE, $end = FALSE){
//Get Page
$page = $this->_getUrlContents($url, FALSE);
//Convert linebreaks
$page = $this->_Unix2Dos($page);
//Get only desired lines
if($start !== FALSE || $end !== FALSE){
$page = $this->_getStringLines($page, $start, $end);
}
//Clean up special chars
$github = htmlspecialchars($page);
//Get start and end tags and apply
$tagstart = $this->params->get('tagstart', '<pre>');
$tagstart = str_replace('&lt;', '<', $tagstart);
$tagstart = str_replace('&gt;', '>', $tagstart);
$tagsend = $this->params->get('tagend', '</pre>');
$tagsend = str_replace('&lt;', '<', $tagsend);
$tagsend = str_replace('&gt;', '>', $tagsend);
$github = $tagstart . $github . $tagsend;
return $github;
}
/*
* Return contents of url
* @author Emerson Rocha Luiz
* @var string $url
* @var string $certificate path to certificate if is https URL
* @return string
*/
protected function _getUrlContents($url, $certificate = FALSE){
//$page = file_get_contents($url);
$ch = curl_init(); //Inicializar a sessao
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//Retorne os dados em vez de imprimir em tela
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, $certificate);//Check certificate if is SSL, default FALSE
curl_setopt($ch, CURLOPT_URL, $url);//Setar URL
$content = curl_exec($ch);//Execute
curl_close($ch);//Feche
return $content;
}
/* Return just lines betwen betwen start and end lines
* @author Emerson Rocha Luiz
* @var string $string: the string to edit
* @var int $start: initial line
* @var int $end: end line
* @return string
*/
protected function _getStringLines($string, $start, $end){
$stringArray = explode(PHP_EOL, $string);
$nLines = count($stringArray)-1;
//Handle a few errors
if( $end < $start || $end > $nLines){
//return FALSE;
}
$result = '';
for( $i=($start-1); $i<=$end ; $i++ ){
$result .= $stringArray[$i] . PHP_EOL;
}
return $result;
}
/* Convert unix linebreaks to windows line breaks
* @author Emerson Rocha Luiz
* @var string $string: the string to edit
* @return string $newstring
*/
protected function _Unix2Dos($string){
if (strpos($string, "\n") === false) {
//$newstring = false;
$newstring = $string;
} else {
$newstring = str_replace("\n", "\r\n", $string);
}
return $newstring;
}
}
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