62 lines
1.9 KiB
PHP
62 lines
1.9 KiB
PHP
<?php
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/**
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* For the full copyright and license information, please view the
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* docs/licenses/LICENSE.txt file that was distributed with this source code.
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*/
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class AttachmentControllerCore extends FrontController
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{
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public function postProcess(): void
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{
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$attachment = new Attachment(Tools::getValue('id_attachment'), $this->context->language->id);
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if (!$attachment->id) {
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Tools::redirect('index.php');
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}
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Hook::exec('actionDownloadAttachment', ['attachment' => &$attachment]);
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if (ob_get_level() && ob_get_length() > 0) {
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ob_end_clean();
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}
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header('Content-Transfer-Encoding: binary');
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header('Content-Type: ' . $attachment->mime);
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header('Content-Length: ' . filesize(_PS_DOWNLOAD_DIR_ . $attachment->file));
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header('Content-Disposition: attachment; filename="' . utf8_decode($attachment->file_name) . '"');
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@set_time_limit(0);
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$this->readfileChunked(_PS_DOWNLOAD_DIR_ . $attachment->file);
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exit;
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}
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/**
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* @see http://ca2.php.net/manual/en/function.readfile.php#54295
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*/
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public function readfileChunked(string $filename, bool $retbytes = true)
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{
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// how many bytes per chunk
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$chunksize = 1 * (1024 * 1024);
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$buffer = '';
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$totalBytes = 0;
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$handle = fopen($filename, 'rb');
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if ($handle === false) {
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return false;
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}
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while (!feof($handle)) {
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$buffer = fread($handle, $chunksize);
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echo $buffer;
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ob_flush();
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flush();
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if ($retbytes) {
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$totalBytes += strlen($buffer);
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}
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}
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$status = fclose($handle);
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if ($retbytes && $status) {
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// return num. bytes delivered like readfile() does.
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return $totalBytes;
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}
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return $status;
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}
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}
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