67 lines
1.4 KiB
PHP
Executable File
67 lines
1.4 KiB
PHP
Executable File
<?php
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// Disable Compression
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@ini_set('zlib.output_compression', 'Off');
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@ini_set('output_buffering', 'Off');
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@ini_set('output_handler', '');
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/**
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* @return int
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*/
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function getChunkCount()
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{
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if (
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!array_key_exists('ckSize', $_GET)
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|| (int) $_GET['ckSize'] <= 0
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) {
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return 4;
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}
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if ((int) $_GET['ckSize'] > 1024) {
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return 1024;
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}
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return (int) $_GET['ckSize'];
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}
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/**
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* @return void
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*/
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function sendHeaders()
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{
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header('HTTP/1.1 200 OK');
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if (isset($_GET['cors'])) {
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header('Access-Control-Allow-Origin: *');
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header('Access-Control-Allow-Methods: GET, POST');
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}
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// Indicate a file download
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header('Content-Description: File Transfer');
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header('Content-Type: application/octet-stream');
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header('Content-Disposition: attachment; filename=random.dat');
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header('Content-Transfer-Encoding: binary');
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// Cache settings: never cache this request
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header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0, s-maxage=0');
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header('Cache-Control: post-check=0, pre-check=0', false);
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header('Pragma: no-cache');
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}
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// Determine how much data we should send
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$chunks = getChunkCount();
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// Generate data
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if (function_exists('random_bytes')) {
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$data = random_bytes(1048576);
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} else {
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$data = openssl_random_pseudo_bytes(1048576);
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}
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// Deliver chunks of 1048576 bytes
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sendHeaders();
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for ($i = 0; $i < $chunks; $i++) {
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echo $data;
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flush();
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}
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