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<?php
use dokuwiki\Utf8\Clean;
use dokuwiki\Utf8\PhpString;
/**
* A simple renderer that allows downloading of code and file snippets
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
class Doku_Renderer_code extends Doku_Renderer
{
protected $_codeblock = 0;
/**
* Send the wanted code block to the browser
*
* When the correct block was found it exits the script.
*
* @param string $text
* @param string $language
* @param string $filename
*/
public function code($text, $language = null, $filename = '')
{
global $INPUT;
if (!$language) $language = 'txt';
$language = preg_replace(PREG_PATTERN_VALID_LANGUAGE, '', $language);
if (!$filename) $filename = 'snippet.' . $language;
$filename = PhpString::basename($filename);
$filename = Clean::stripspecials($filename, '_');
// send CRLF to Windows clients
if (strpos($INPUT->server->str('HTTP_USER_AGENT'), 'Windows') !== false) {
$text = str_replace("\n", "\r\n", $text);
}
if ($this->_codeblock == $INPUT->str('codeblock')) {
header("Content-Type: text/plain; charset=utf-8");
header("Content-Disposition: attachment; filename=$filename");
header("X-Robots-Tag: noindex");
echo trim($text, "\r\n");
exit;
}
$this->_codeblock++;
}
/**
* Wraps around code()
*
* @param string $text
* @param string $language
* @param string $filename
*/
public function file($text, $language = null, $filename = '')
{
$this->code($text, $language, $filename);
}
/**
* This should never be reached, if it is send a 404
*/
public function document_end()
{
http_status(404);
echo '404 - Not found';
exit;
}
/**
* Return the format of the renderer
*
* @returns string 'code'
*/
public function getFormat()
{
return 'code';
}
}
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