friendship ended with social-app. php is my new best friend
veryroundbird.house
1<?php
2/**
3 * Trait PARTrait
4 *
5 * @created 19.09.2024
6 * @author smiley <smiley@chillerlan.net>
7 * @copyright 2024 smiley
8 * @license MIT
9 */
10declare(strict_types=1);
11
12namespace chillerlan\OAuth\Core;
13
14use chillerlan\HTTP\Utils\MessageUtil;
15use chillerlan\HTTP\Utils\QueryUtil;
16use chillerlan\OAuth\Providers\ProviderException;
17use Psr\Http\Message\UriInterface;
18use function sprintf;
19
20/**
21 * Implements PAR (Pushed Authorization Requests) functionality
22 *
23 * @see \chillerlan\OAuth\Core\PAR
24 */
25trait PARTrait{
26
27 /**
28 * implements PAR::getParRequestUri()
29 *
30 * @see \chillerlan\OAuth\Core\PAR::getParRequestUri()
31 * @see \chillerlan\OAuth\Core\OAuth2Provider::getAuthorizationURL()
32 *
33 * @param array<string, string> $body
34 */
35 public function getParRequestUri(array $body):UriInterface{
36 // send the request with the same method and parameters as the token requests
37 // @link https://datatracker.ietf.org/doc/html/rfc9126#name-request
38 $response = $this->sendAccessTokenRequest($this->parAuthorizationURL, $body);
39 $status = $response->getStatusCode();
40 $json = MessageUtil::decodeJSON($response, true);
41
42 // something went horribly wrong
43 if($status !== 200){
44 print_r($json);
45
46 // @link https://datatracker.ietf.org/doc/html/rfc9126#section-2.3
47 if(isset($json['error'], $json['error_description'])){
48 throw new ProviderException(sprintf('PAR error: "%s" (%s)', $json['error'], $json['error_description']));
49 }
50
51 throw new ProviderException(sprintf('PAR request error: (HTTP/%s)', $status)); // @codeCoverageIgnore
52 }
53
54 $url = QueryUtil::merge($this->authorizationURL, $this->getParAuthorizationURLRequestParams($json));
55
56 return $this->uriFactory->createUri($url);
57 }
58
59 /**
60 * Parses the response from the PAR request and returns the query parameters for the authorization URL
61 *
62 * @see \chillerlan\OAuth\Core\OAuth2Provider::getParRequestUri()
63 *
64 * @param array<string, string> $response
65 * @return array<string, string>
66 *
67 * @codeCoverageIgnore
68 */
69 protected function getParAuthorizationURLRequestParams(array $response):array{
70
71 if(!isset($response['request_uri'])){
72 throw new ProviderException('PAR response error: "request_uri" missing');
73 }
74
75 return [
76 'client_id' => $this->options->key,
77 'request_uri' => $response['request_uri'],
78 ];
79 }
80
81}