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tag: RELEASE_3_4_0A…
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71 lines (54 sloc) 1.621 kb
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* @package BLOBStreaming
*/
/**
* Core library.
*/
require_once './libraries/common.inc.php';
// Check URL parameters
PMA_checkParameters(array('reference', 'c_type'));
// Increase time limit, because fetching blob might take some time
set_time_limit(0);
$reference = $_REQUEST['reference'];
/*
* FIXME: Maybe it would be better to check MIME type against whitelist as
* this code sems to support only few MIME types (check
* function PMA_BS_CreateReferenceLink in libraries/blobstreaming.lib.php).
*/
$c_type = preg_replace('/[^A-Za-z0-9/_-]/', '_', $_REQUEST['c_type']);
// Get the blob streaming URL
$filename = PMA_BS_getURL($reference);
if (empty($filename)) {
die(__('No blob streaming server configured!'));
}
$hdrs = get_headers($filename, 1);
if ($hdrs === FALSE) {
die(__('Failed to fetch headers'));
}
$fHnd = fopen($filename, "rb");
if ($fHnd === FALSE) {
die(__('Failed to open remote URL'));
}
$f_size = $hdrs['Content-Length'];
header("Expires: 0");
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Content-type: $c_type");
header('Content-length: ' . $f_size);
header("Content-disposition: attachment; filename=" . basename($filename));
$pos = 0;
$content = "";
while (!feof($fHnd)) {
$content .= fread($fHnd, $f_size);
$pos = strlen($content);
if ($pos >= $f_size) {
break;
}
}
echo $content;
flush();
fclose($fHnd);
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