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<?php
namespace Bitrix\Main\Web\Http;
use Bitrix\Main\ArgumentException;
class MultipartStream extends FormStream
{
protected const BUF_LEN = 524288;
protected $boundary;
public function getBoundary(): string
{
if ($this->boundary === null)
{
$this->boundary = 'BXC' . uniqid('', true);
}
return $this->boundary;
}
protected function build(array $data)
{
$boundary = $this->getBoundary();
foreach ($data as $k => $v)
{
$this->write('--' . $boundary . "\r\n");
if ((is_resource($v) && get_resource_type($v) === 'stream') || is_array($v))
{
$filename = $v['filename'] ?? $k;
$contentType = $v['contentType'] ?? 'application/octet-stream';
$this->write('Content-Disposition: form-data; name="' . $k . '"; filename="' . $filename . '"' . "\r\n");
$this->write('Content-Type: ' . $contentType . "\r\n\r\n");
if (is_array($v))
{
if (isset($v['resource']) && is_resource($v['resource']) && get_resource_type($v['resource']) === 'stream')
{
fseek($v['resource'], 0);
while (!feof($v['resource']))
{
$this->write(stream_get_contents($v['resource'], static::BUF_LEN));
}
}
else
{
if (isset($v['content']))
{
$this->write($v['content']);
}
else
{
throw new ArgumentException("File `{$k}` not found for multipart upload.", 'data');
}
}
}
else
{
fseek($v, 0);
while (!feof($v))
{
$this->write(stream_get_contents($v, static::BUF_LEN));
}
}
}
else
{
$this->write('Content-Disposition: form-data; name="' . $k . '"' . "\r\n\r\n");
$this->write($v);
}
$this->write("\r\n");
}
$this->write('--' . $boundary . "--\r\n");
}
}