127bbde00SAndreas Gohr<?php 227bbde00SAndreas Gohr/** 327bbde00SAndreas Gohr * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) 427bbde00SAndreas Gohr * @author Andreas Gohr <gohr@cosmocode.de> 527bbde00SAndreas Gohr */ 627bbde00SAndreas Gohr 727bbde00SAndreas Gohrif(!defined('DOKU_INC')) define('DOKU_INC', realpath(dirname(__FILE__).'/../../../').'/'); 827bbde00SAndreas Gohrdefine('DOKU_DISABLE_GZIP_OUTPUT', 1); 927bbde00SAndreas Gohrrequire_once(DOKU_INC.'inc/init.php'); 1027bbde00SAndreas Gohrrequire_once(DOKU_INC.'inc/common.php'); 1127bbde00SAndreas Gohrrequire_once(DOKU_INC.'inc/pageutils.php'); 1227bbde00SAndreas Gohrrequire_once(DOKU_INC.'inc/httputils.php'); 131faa1ff0SAndreas Gohrrequire_once(DOKU_INC.'inc/pluginutils.php'); 1427bbde00SAndreas Gohrrequire_once(DOKU_INC.'inc/auth.php'); 1527bbde00SAndreas Gohrsession_write_close(); 1627bbde00SAndreas Gohr 17*d6577f0fSAndreas Gohr/** @var syntax_plugin_panoview $pl */ 181faa1ff0SAndreas Gohr$pl =& plugin_load('syntax', 'panoview'); 191faa1ff0SAndreas Gohr 2027bbde00SAndreas Gohr$data = array(); 2127bbde00SAndreas Gohr// get parameters 2227bbde00SAndreas Gohrlist($data['zoom'], $data['col'], $data['row']) = explode('-', $_GET['tile']); 2327bbde00SAndreas Gohr$data['id'] = cleanID($_GET['image']); 2427bbde00SAndreas Gohr$data['file'] = mediaFN($data['id']); 2527bbde00SAndreas Gohr$data['mtime'] = @filemtime($data['file']); 2627bbde00SAndreas Gohr 2727bbde00SAndreas Gohr// check auth and existance 28*d6577f0fSAndreas Gohrif(auth_quickaclcheck(getNS($data['id']).':X') < AUTH_READ) $pl->gfx_error('noauth'); 291faa1ff0SAndreas Gohrif(!$data['mtime']) $pl->gfx_error('notfound'); 3027bbde00SAndreas Gohr 3127bbde00SAndreas Gohr// calculate zoom level scaling 3227bbde00SAndreas Gohr$data['ts'] = 256; 3327bbde00SAndreas Gohrlist($data['width'], $data['height']) = getimagesize($data['file']); 3427bbde00SAndreas Gohr$data['scale'] = (int) pow(2, $data['zoom']); 3527bbde00SAndreas Gohr$data['max'] = max($data['width'], $data['height']); 3627bbde00SAndreas Gohr$data['inv'] = $data['max'] / ($data['ts'] * $data['scale']); 37359cb25cSAndreas Gohr 38359cb25cSAndreas Gohrif($data['inv'] < 0.5) $pl->gfx_error('maxzoom'); 39359cb25cSAndreas Gohrif($data['inv'] < 1.0) $data['inv'] = 1.0; // original size, no upscaling 4027bbde00SAndreas Gohr 4127bbde00SAndreas Gohr// calculate tile boundaries 4227bbde00SAndreas Gohr$data['tlx'] = (int) ($data['col'] * $data['ts'] * $data['inv']); 4327bbde00SAndreas Gohr$data['tly'] = (int) ($data['row'] * $data['ts'] * $data['inv']); 4427bbde00SAndreas Gohr$data['brx'] = (int) ($data['tlx'] + ($data['ts'] * $data['inv'])); 4527bbde00SAndreas Gohr$data['bry'] = (int) ($data['tly'] + ($data['ts'] * $data['inv'])); 461faa1ff0SAndreas Gohrif($data['tlx'] > $data['width'] || $data['tly'] > $data['height']) $pl->gfx_error('blank'); 4727bbde00SAndreas Gohr 4827bbde00SAndreas Gohr// cache times 4927bbde00SAndreas Gohr$data['cache'] = getCacheName($data['file'], '.pv.'.$data['zoom'].'-'.$data['col'].'-'.$data['row'].'.jpg'); 5027bbde00SAndreas Gohr$data['cachet'] = @filemtime($data['cache']); 5127bbde00SAndreas Gohr 5227bbde00SAndreas Gohr// (re)generate 53c131b324SAndreas Gohrif($data['cachet'] < $data['mtime']) { 541faa1ff0SAndreas Gohr $pl->tile_lock($data); 55dc838624SAndreas Gohr if($conf['im_convert']) { 561faa1ff0SAndreas Gohr $pl->tile_im($data); 57dc838624SAndreas Gohr } else { 581faa1ff0SAndreas Gohr $pl->tile_gd($data); 5927bbde00SAndreas Gohr } 601faa1ff0SAndreas Gohr $pl->tile_unlock($data); 61dc838624SAndreas Gohr} 6227bbde00SAndreas Gohr 6327bbde00SAndreas Gohr// send 6427bbde00SAndreas Gohrheader('Content-type: image/jpeg'); 6527bbde00SAndreas Gohrhttp_conditionalRequest(max($data['mtime'], $data['selft'])); 66*d6577f0fSAndreas Gohr 67*d6577f0fSAndreas Gohr//use x-sendfile header to pass the delivery to compatible webservers 68*d6577f0fSAndreas Gohrif(http_sendfile($file)) exit; 69*d6577f0fSAndreas Gohr 70*d6577f0fSAndreas Gohr// send file contents 71*d6577f0fSAndreas Gohr$fp = @fopen($data['cache'], "rb"); 72*d6577f0fSAndreas Gohrif($fp) { 73*d6577f0fSAndreas Gohr http_rangeRequest($fp, filesize($data['cache']), 'image/jpeg'); 74*d6577f0fSAndreas Gohr} else { 75*d6577f0fSAndreas Gohr header("HTTP/1.0 500 Internal Server Error"); 76*d6577f0fSAndreas Gohr print "Could not read tile - bad permissions?"; 77*d6577f0fSAndreas Gohr} 7827bbde00SAndreas Gohr 7927bbde00SAndreas Gohr 8027bbde00SAndreas Gohr//Setup VIM: ex: et ts=4 enc=utf-8 : 81