1<?php 2/** 3 * A simple renderer that allows downloading of code and file snippets 4 * 5 * @author Andreas Gohr <andi@splitbrain.org> 6 */ 7if(!defined('DOKU_INC')) die('meh.'); 8 9class Doku_Renderer_code extends Doku_Renderer { 10 var $_codeblock = 0; 11 12 /** 13 * Send the wanted code block to the browser 14 * 15 * When the correct block was found it exits the script. 16 * 17 * @param string $text 18 * @param string $language 19 * @param string $filename 20 */ 21 function code($text, $language = null, $filename = '') { 22 global $INPUT; 23 if(!$language) $language = 'txt'; 24 if(!$filename) $filename = 'snippet.'.$language; 25 $filename = utf8_basename($filename); 26 $filename = utf8_stripspecials($filename, '_'); 27 28 // send CRLF to Windows clients 29 if(strpos($INPUT->server->str('HTTP_USER_AGENT'), 'Windows') !== false) { 30 $text = str_replace("\n", "\r\n", $text); 31 } 32 33 if($this->_codeblock == $INPUT->str('codeblock')) { 34 header("Content-Type: text/plain; charset=utf-8"); 35 header("Content-Disposition: attachment; filename=$filename"); 36 header("X-Robots-Tag: noindex"); 37 echo trim($text, "\r\n"); 38 exit; 39 } 40 41 $this->_codeblock++; 42 } 43 44 /** 45 * Wraps around code() 46 * 47 * @param string $text 48 * @param string $language 49 * @param string $filename 50 */ 51 function file($text, $language = null, $filename = '') { 52 $this->code($text, $language, $filename); 53 } 54 55 /** 56 * This should never be reached, if it is send a 404 57 */ 58 function document_end() { 59 http_status(404); 60 echo '404 - Not found'; 61 exit; 62 } 63 64 /** 65 * Return the format of the renderer 66 * 67 * @returns string 'code' 68 */ 69 function getFormat() { 70 return 'code'; 71 } 72} 73