diff options
author | ahriman <ahriman@falte.red> | 2019-01-02 04:57:35 +0000 |
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committer | ahriman <ahriman@falte.red> | 2019-01-02 04:57:35 +0000 |
commit | 2bd7f83a6495011ada78ca8a9f2af417caf01760 (patch) | |
tree | f9acdb7f09e011c65330ab993d4db3620787dbfb /wiki/inc/fetch.functions.php | |
parent | bcb215c3a7e914d05f166846a33860e48bba64fb (diff) | |
download | site-2bd7f83a6495011ada78ca8a9f2af417caf01760.tar.gz |
removed dokuwiki
Diffstat (limited to 'wiki/inc/fetch.functions.php')
-rw-r--r-- | wiki/inc/fetch.functions.php | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/wiki/inc/fetch.functions.php b/wiki/inc/fetch.functions.php deleted file mode 100644 index b8e75ea..0000000 --- a/wiki/inc/fetch.functions.php +++ /dev/null @@ -1,186 +0,0 @@ -<?php -/** - * Functions used by lib/exe/fetch.php - * (not included by other parts of dokuwiki) - */ - -/** - * Set headers and send the file to the client - * - * The $cache parameter influences how long files may be kept in caches, the $public parameter - * influences if this caching may happen in public proxis or in the browser cache only FS#2734 - * - * This function will abort the current script when a 304 is sent or file sending is handled - * through x-sendfile - * - * @author Andreas Gohr <andi@splitbrain.org> - * @author Ben Coburn <btcoburn@silicodon.net> - * @author Gerry Weissbach <dokuwiki@gammaproduction.de> - * - * @param string $file local file to send - * @param string $mime mime type of the file - * @param bool $dl set to true to force a browser download - * @param int $cache remaining cache time in seconds (-1 for $conf['cache'], 0 for no-cache) - * @param bool $public is this a public ressource or a private one? - * @param string $orig original file to send - the file name will be used for the Content-Disposition - */ -function sendFile($file, $mime, $dl, $cache, $public = false, $orig = null) { - global $conf; - // send mime headers - header("Content-Type: $mime"); - - // calculate cache times - if($cache == -1) { - $maxage = max($conf['cachetime'], 3600); // cachetime or one hour - $expires = time() + $maxage; - } else if($cache > 0) { - $maxage = $cache; // given time - $expires = time() + $maxage; - } else { // $cache == 0 - $maxage = 0; - $expires = 0; // 1970-01-01 - } - - // smart http caching headers - if($maxage) { - if($public) { - // cache publically - header('Expires: '.gmdate("D, d M Y H:i:s", $expires).' GMT'); - header('Cache-Control: public, proxy-revalidate, no-transform, max-age='.$maxage); - } else { - // cache in browser - header('Expires: '.gmdate("D, d M Y H:i:s", $expires).' GMT'); - header('Cache-Control: private, no-transform, max-age='.$maxage); - } - } else { - // no cache at all - header('Expires: Thu, 01 Jan 1970 00:00:00 GMT'); - header('Cache-Control: no-cache, no-transform'); - } - - //send important headers first, script stops here if '304 Not Modified' response - $fmtime = @filemtime($file); - http_conditionalRequest($fmtime); - - // Use the current $file if is $orig is not set. - if ( $orig == null ) { - $orig = $file; - } - - //download or display? - if($dl) { - header('Content-Disposition: attachment;'.rfc2231_encode('filename', utf8_basename($orig)).';'); - } else { - header('Content-Disposition: inline;'.rfc2231_encode('filename', utf8_basename($orig)).';'); - } - - //use x-sendfile header to pass the delivery to compatible webservers - http_sendfile($file); - - // send file contents - $fp = @fopen($file, "rb"); - if($fp) { - http_rangeRequest($fp, filesize($file), $mime); - } else { - http_status(500); - print "Could not read $file - bad permissions?"; - } -} - -/** - * Try an rfc2231 compatible encoding. This ensures correct - * interpretation of filenames outside of the ASCII set. - * This seems to be needed for file names with e.g. umlauts that - * would otherwise decode wrongly in IE. - * - * There is no additional checking, just the encoding and setting the key=value for usage in headers - * - * @author Gerry Weissbach <gerry.w@gammaproduction.de> - * @param string $name name of the field to be set in the header() call - * @param string $value value of the field to be set in the header() call - * @param string $charset used charset for the encoding of value - * @param string $lang language used. - * @return string in the format " name=value" for values WITHOUT special characters - * @return string in the format " name*=charset'lang'value" for values WITH special characters - */ -function rfc2231_encode($name, $value, $charset='utf-8', $lang='en') { - $internal = preg_replace_callback('/[\x00-\x20*\'%()<>@,;:\\\\"\/[\]?=\x80-\xFF]/', function($match) { return rawurlencode($match[0]); }, $value); - if ( $value != $internal ) { - return ' '.$name.'*='.$charset."'".$lang."'".$internal; - } else { - return ' '.$name.'="'.$value.'"'; - } -} - -/** - * 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 string $media reference to the media id - * @param string $file reference to the file variable - * @param string $rev - * @param int $width - * @param int $height - * @return array as array(STATUS, STATUSMESSAGE) - */ -function checkFileStatus(&$media, &$file, $rev = '', $width=0, $height=0) { - global $MIME, $EXT, $CACHE, $INPUT; - - //media to local file - if(media_isexternal($media)) { - //check token for external image and additional for resized and cached images - if(media_get_token($media, $width, $height) !== $INPUT->str('tok')) { - return array(412, 'Precondition Failed'); - } - //handle external images - if(strncmp($MIME, 'image/', 6) == 0) $file = media_get_from_URL($media, $EXT, $CACHE); - if(!$file) { - //download failed - redirect to original URL - return array(302, $media); - } - } else { - $media = cleanID($media); - if(empty($media)) { - return array(400, 'Bad request'); - } - // check token for resized images - if (($width || $height) && media_get_token($media, $width, $height) !== $INPUT->str('tok')) { - return array(412, 'Precondition Failed'); - } - - //check permissions (namespace only) - if(auth_quickaclcheck(getNS($media).':X') < AUTH_READ) { - return array(403, 'Forbidden'); - } - $file = mediaFN($media, $rev); - } - - //check file existance - if(!file_exists($file)) { - return array(404, 'Not Found'); - } - - return array(200, null); -} - -/** - * Returns the wanted cachetime in seconds - * - * Resolves named constants - * - * @author Andreas Gohr <andi@splitbrain.org> - * - * @param string $cache - * @return int cachetime in seconds - */ -function calc_cache($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 -} |