<?php
namespace Http\Message\Formatter;
use Http\Message\Formatter;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* A formatter that prints a cURL command for HTTP requests.
*
* @author Tobias Nyholm <tobias.nyholm@gmail.com>
*/
class CurlCommandFormatter implements Formatter
{
public function formatRequest(RequestInterface $request)
{
$command = sprintf('curl %s', escapeshellarg((string) $request->getUri()->withFragment('')));
if ('1.0' === $request->getProtocolVersion()) {
$command .= ' --http1.0';
} elseif ('2.0' === $request->getProtocolVersion()) {
$command .= ' --http2';
}
$method = strtoupper($request->getMethod());
if ('HEAD' === $method) {
$command .= ' --head';
} elseif ('GET' !== $method) {
$command .= ' --request '.$method;
}
$command .= $this->getHeadersAsCommandOptions($request);
$body = $request->getBody();
if ($body->getSize() > 0) {
// escapeshellarg argument max length on Windows, but longer body in curl command would be impractical anyways
if ($body->getSize() > 8192) {
$data = '[too long stream omitted]';
} elseif ($body->isSeekable()) {
$data = $body->__toString();
$body->rewind();
// all non-printable ASCII characters and <DEL> except for \t, \r, \n
if (preg_match('/([\x00-\x09\x0C\x0E-\x1F\x7F])/', $data)) {
$data = '[binary stream omitted]';
}
} else {
$data = '[non-seekable stream omitted]';
}
$escapedData = @escapeshellarg($data);
if (empty($escapedData)) {
$escapedData = 'We couldn\'t not escape the data properly';
}
$command .= sprintf(' --data %s', $escapedData);
}
return $command;
}
public function formatResponse(ResponseInterface $response)
{
return '';
}
/**
* Formats a response in context of its request.
*
* @return string
*/
public function formatResponseForRequest(ResponseInterface $response, RequestInterface $request)
{
return $this->formatResponse($response);
}
/**
* @return string
*/
private function getHeadersAsCommandOptions(RequestInterface $request)
{
$command = '';
foreach ($request->getHeaders() as $name => $values) {
if ('host' === strtolower($name) && $values[0] === $request->getUri()->getHost()) {
continue;
}
if ('user-agent' === strtolower($name)) {
$command .= sprintf(' -A %s', escapeshellarg($values[0]));
continue;
}
$command .= sprintf(' -H %s', escapeshellarg($name.': '.$request->getHeaderLine($name)));
}
return $command;
}
}