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-rw-r--r--lib/exe/fetch.php263
1 files changed, 78 insertions, 185 deletions
diff --git a/lib/exe/fetch.php b/lib/exe/fetch.php
index 52e7ebe1e..7a2250373 100644
--- a/lib/exe/fetch.php
+++ b/lib/exe/fetch.php
@@ -6,200 +6,93 @@
* @author Andreas Gohr <andi@splitbrain.org>
*/
- if(!defined('DOKU_INC')) define('DOKU_INC',dirname(__FILE__).'/../../');
- define('DOKU_DISABLE_GZIP_OUTPUT', 1);
- require_once(DOKU_INC.'inc/init.php');
+if(!defined('DOKU_INC')) define('DOKU_INC', dirname(__FILE__).'/../../');
+if (!defined('DOKU_DISABLE_GZIP_OUTPUT')) define('DOKU_DISABLE_GZIP_OUTPUT', 1);
+require_once(DOKU_INC.'inc/init.php');
+session_write_close(); //close session
- //close session
- session_write_close();
+require_once(DOKU_INC.'inc/fetch.functions.php');
- $mimetypes = getMimeTypes();
-
- //get input
- $MEDIA = stripctl(getID('media',false)); // no cleaning except control chars - maybe external
- $CACHE = calc_cache($INPUT->str('cache'));
- $WIDTH = $INPUT->int('w');
- $HEIGHT = $INPUT->int('h');
- $REV = &$INPUT->ref('rev');
- //sanitize revision
- $REV = preg_replace('/[^0-9]/','',$REV);
-
- list($EXT,$MIME,$DL) = mimetype($MEDIA,false);
- if($EXT === false){
- $EXT = 'unknown';
- $MIME = 'application/octet-stream';
- $DL = true;
- }
-
- // check for permissions, preconditions and cache external files
- list($STATUS, $STATUSMESSAGE) = checkFileStatus($MEDIA, $FILE, $REV);
-
- // prepare data for plugin events
- $data = array('media' => $MEDIA,
- 'file' => $FILE,
- 'orig' => $FILE,
- 'mime' => $MIME,
- 'download' => $DL,
- 'cache' => $CACHE,
- 'ext' => $EXT,
- 'width' => $WIDTH,
- 'height' => $HEIGHT,
- 'status' => $STATUS,
- 'statusmessage' => $STATUSMESSAGE,
- );
-
- // handle the file status
- $evt = new Doku_Event('FETCH_MEDIA_STATUS', $data);
- if ( $evt->advise_before() ) {
- // redirects
- if($data['status'] > 300 && $data['status'] <= 304){
- send_redirect($data['statusmessage']);
- }
- // send any non 200 status
- if($data['status'] != 200){
- header('HTTP/1.0 ' . $data['status'] . ' ' . $data['statusmessage']);
- }
- // die on errors
- if($data['status'] > 203){
- print $data['statusmessage'];
- exit;
- }
- }
- $evt->advise_after();
- unset($evt);
-
- //handle image resizing/cropping
- if((substr($MIME,0,5) == 'image') && $WIDTH){
- if($HEIGHT){
- $data['file'] = $FILE = media_crop_image($data['file'],$EXT,$WIDTH,$HEIGHT);
- }else{
- $data['file'] = $FILE = media_resize_image($data['file'],$EXT,$WIDTH,$HEIGHT);
- }
- }
-
- // finally send the file to the client
- $evt = new Doku_Event('MEDIA_SENDFILE', $data);
- if ($evt->advise_before()) {
- sendFile($data['file'],$data['mime'],$data['download'],$data['cache']);
- }
- // Do something after the download finished.
- $evt->advise_after();
-
-/* ------------------------------------------------------------------------ */
-
-/**
- * Set headers and send the file to the client
- *
- * @author Andreas Gohr <andi@splitbrain.org>
- * @author Ben Coburn <btcoburn@silicodon.net>
- */
-function sendFile($file,$mime,$dl,$cache){
- global $conf;
- $fmtime = @filemtime($file);
- // send headers
- header("Content-Type: $mime");
- // smart http caching headers
- if ($cache==-1) {
- // cache
- // cachetime or one hour
- header('Expires: '.gmdate("D, d M Y H:i:s", time()+max($conf['cachetime'], 3600)).' GMT');
- header('Cache-Control: public, proxy-revalidate, no-transform, max-age='.max($conf['cachetime'], 3600));
- header('Pragma: public');
- } else if ($cache>0) {
- // recache
- // remaining cachetime + 10 seconds so the newly recached media is used
- header('Expires: '.gmdate("D, d M Y H:i:s", $fmtime+$conf['cachetime']+10).' GMT');
- header('Cache-Control: public, proxy-revalidate, no-transform, max-age='.max($fmtime-time()+$conf['cachetime']+10, 0));
- header('Pragma: public');
- } else if ($cache==0) {
- // nocache
- header('Cache-Control: must-revalidate, no-transform, post-check=0, pre-check=0');
- header('Pragma: public');
- }
- //send important headers first, script stops here if '304 Not Modified' response
- http_conditionalRequest($fmtime);
-
-
- //download or display?
- if($dl){
- header('Content-Disposition: attachment; filename="'.utf8_basename($file).'";');
- }else{
- header('Content-Disposition: inline; filename="'.utf8_basename($file).'";');
- }
-
- //use x-sendfile header to pass the delivery to compatible webservers
- if (http_sendfile($file)) exit;
-
- // send file contents
- $fp = @fopen($file,"rb");
- if($fp){
- http_rangeRequest($fp,filesize($file),$mime);
- }else{
- header("HTTP/1.0 500 Internal Server Error");
- print "Could not read $file - bad permissions?";
- }
+if (defined('SIMPLE_TEST')) {
+ $INPUT = new Input();
}
-/**
- * Check for media for preconditions and return correct status code
- *
- * READ: MEDIA, MIME, EXT, CACHE
- * WRITE: MEDIA, FILE, array( STATUS, STATUSMESSAGE )
- *
- * @author Gerry Weissbach <gerry.w@gammaproduction.de>
- * @param $media reference to the media id
- * @param $file reference to the file variable
- * @returns array(STATUS, STATUSMESSAGE)
- */
-function checkFileStatus(&$media, &$file, $rev='') {
- global $MIME, $EXT, $CACHE, $INPUT;
-
- //media to local file
- if(preg_match('#^(https?)://#i',$media)){
- //check hash
- if(substr(md5(auth_cookiesalt().$media),0,6) !== $INPUT->str('hash')){
- return array( 412, 'Precondition Failed');
+// BEGIN main
+ $mimetypes = getMimeTypes();
+
+ //get input
+ $MEDIA = stripctl(getID('media', false)); // no cleaning except control chars - maybe external
+ $CACHE = calc_cache($INPUT->str('cache'));
+ $WIDTH = $INPUT->int('w');
+ $HEIGHT = $INPUT->int('h');
+ $REV = & $INPUT->ref('rev');
+ //sanitize revision
+ $REV = preg_replace('/[^0-9]/', '', $REV);
+
+ list($EXT, $MIME, $DL) = mimetype($MEDIA, false);
+ if($EXT === false) {
+ $EXT = 'unknown';
+ $MIME = 'application/octet-stream';
+ $DL = true;
}
- //handle external images
- if(strncmp($MIME,'image/',6) == 0) $file = media_get_from_URL($media,$EXT,$CACHE);
- if(!$file){
- //download failed - redirect to original URL
- return array( 302, $media );
+
+ // check for permissions, preconditions and cache external files
+ list($STATUS, $STATUSMESSAGE) = checkFileStatus($MEDIA, $FILE, $REV, $WIDTH, $HEIGHT);
+
+ // prepare data for plugin events
+ $data = array(
+ 'media' => $MEDIA,
+ 'file' => $FILE,
+ 'orig' => $FILE,
+ 'mime' => $MIME,
+ 'download' => $DL,
+ 'cache' => $CACHE,
+ 'ext' => $EXT,
+ 'width' => $WIDTH,
+ 'height' => $HEIGHT,
+ 'status' => $STATUS,
+ 'statusmessage' => $STATUSMESSAGE,
+ 'ispublic' => media_ispublic($MEDIA),
+ );
+
+ // handle the file status
+ $evt = new Doku_Event('FETCH_MEDIA_STATUS', $data);
+ if($evt->advise_before()) {
+ // redirects
+ if($data['status'] > 300 && $data['status'] <= 304) {
+ send_redirect($data['statusmessage']);
+ }
+ // send any non 200 status
+ if($data['status'] != 200) {
+ http_status($data['status'], $data['statusmessage']);
+ }
+ // die on errors
+ if($data['status'] > 203) {
+ print $data['statusmessage'];
+ if (defined('SIMPLE_TEST')) return;
+ exit;
+ }
}
- }else{
- $media = cleanID($media);
- if(empty($media)){
- return array( 400, 'Bad request' );
+ $evt->advise_after();
+ unset($evt);
+
+ //handle image resizing/cropping
+ if((substr($MIME, 0, 5) == 'image') && $WIDTH) {
+ if($HEIGHT) {
+ $data['file'] = $FILE = media_crop_image($data['file'], $EXT, $WIDTH, $HEIGHT);
+ } else {
+ $data['file'] = $FILE = media_resize_image($data['file'], $EXT, $WIDTH, $HEIGHT);
+ }
}
- //check permissions (namespace only)
- if(auth_quickaclcheck(getNS($media).':X') < AUTH_READ){
- return array( 403, 'Forbidden' );
+ // finally send the file to the client
+ $evt = new Doku_Event('MEDIA_SENDFILE', $data);
+ if($evt->advise_before()) {
+ sendFile($data['file'], $data['mime'], $data['download'], $data['cache'], $data['ispublic']);
}
- $file = mediaFN($media, $rev);
- }
-
- //check file existance
- if(!@file_exists($file)){
- return array( 404, 'Not Found' );
- }
+ // Do something after the download finished.
+ $evt->advise_after(); // will not be emitted on 304 or x-sendfile
- return array(200, null);
-}
-
-/**
- * Returns the wanted cachetime in seconds
- *
- * Resolves named constants
- *
- * @author Andreas Gohr <andi@splitbrain.org>
- */
-function calc_cache($cache){
- global $conf;
-
- if(strtolower($cache) == 'nocache') return 0; //never cache
- if(strtolower($cache) == 'recache') return $conf['cachetime']; //use standard cache
- return -1; //cache endless
-}
+// END DO main
//Setup VIM: ex: et ts=2 :
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-10 16:20:30 +0000