| 1 |
<?php |
| 2 |
|
| 3 |
namespace Leadin\api; |
| 4 |
|
| 5 |
use Leadin\api\Base_Api_Controller; |
| 6 |
use Leadin\auth\OAuth; |
| 7 |
use Leadin\auth\OAuthCrypto; |
| 8 |
use Leadin\data\Filters; |
| 9 |
use Leadin\data\Portal_Options; |
| 10 |
|
| 11 |
class Access_Token_Api_Controller extends Base_Api_Controller { |
| 12 |
|
| 13 |
const CACHE_KEY = 'leadin_access_token'; |
| 14 |
|
| 15 |
public function __construct() { |
| 16 |
// Uses register_leadin_route → edit_posts capability |
| 17 |
// Safe because only short-lived access token is returned, |
| 18 |
// NOT the long-lived refresh token |
| 19 |
self::register_leadin_route( |
| 20 |
'/access-token', |
| 21 |
\WP_REST_Server::READABLE, |
| 22 |
array( $this, 'get_access_token' ) |
| 23 |
); |
| 24 |
} |
| 25 |
|
| 26 |
public function get_access_token() { |
| 27 |
$cached = get_transient( self::CACHE_KEY ); |
| 28 |
if ( ! empty( $cached ) ) { |
| 29 |
$cached_data = json_decode( $cached, true ); |
| 30 |
if ( ! empty( $cached_data['accessToken'] ) |
| 31 |
&& ! empty( $cached_data['expiresAt'] ) |
| 32 |
&& $cached_data['expiresAt'] > ( time() + 300 ) ) { |
| 33 |
return new \WP_REST_Response( |
| 34 |
array( |
| 35 |
'accessToken' => $cached_data['accessToken'], |
| 36 |
'expiresIn' => $cached_data['expiresAt'] - time(), |
| 37 |
), |
| 38 |
200 |
| 39 |
); |
| 40 |
} |
| 41 |
} |
| 42 |
|
| 43 |
$refresh_token = OAuth::get_refresh_token(); |
| 44 |
|
| 45 |
if ( false === $refresh_token ) { |
| 46 |
return new \WP_REST_Response( |
| 47 |
array( 'error' => 'decrypt_failed' ), |
| 48 |
500 |
| 49 |
); |
| 50 |
} |
| 51 |
|
| 52 |
if ( empty( $refresh_token ) ) { |
| 53 |
return new \WP_REST_Response( |
| 54 |
array( 'error' => 'not_connected' ), |
| 55 |
403 |
| 56 |
); |
| 57 |
} |
| 58 |
|
| 59 |
// Server-side exchange — refresh token never leaves PHP. |
| 60 |
// The /wordpress/v2/oauth/refresh endpoint takes the token in the POST |
| 61 |
// body so it does not appear in server access logs. |
| 62 |
$api_url = Filters::apply_base_api_url_filters() . '/wordpress/v2/oauth/refresh'; |
| 63 |
$response = wp_remote_post( |
| 64 |
$api_url, |
| 65 |
array( |
| 66 |
'headers' => array( 'Content-Type' => 'application/json' ), |
| 67 |
'body' => json_encode( array( 'refreshToken' => $refresh_token ) ), |
| 68 |
'timeout' => 15, |
| 69 |
) |
| 70 |
); |
| 71 |
|
| 72 |
if ( is_wp_error( $response ) ) { |
| 73 |
return new \WP_REST_Response( |
| 74 |
array( 'error' => 'refresh_failed' ), |
| 75 |
500 |
| 76 |
); |
| 77 |
} |
| 78 |
|
| 79 |
$response_code = wp_remote_retrieve_response_code( $response ); |
| 80 |
if ( 200 !== $response_code ) { |
| 81 |
return new \WP_REST_Response( |
| 82 |
array( |
| 83 |
'error' => 'refresh_failed', |
| 84 |
'code' => $response_code, |
| 85 |
), |
| 86 |
500 |
| 87 |
); |
| 88 |
} |
| 89 |
|
| 90 |
$body = json_decode( wp_remote_retrieve_body( $response ), true ); |
| 91 |
|
| 92 |
if ( empty( $body ) || empty( $body['access_token'] ) ) { |
| 93 |
return new \WP_REST_Response( |
| 94 |
array( 'error' => 'invalid_response' ), |
| 95 |
500 |
| 96 |
); |
| 97 |
} |
| 98 |
|
| 99 |
$expires_in = isset( $body['expires_in'] ) ? (int) $body['expires_in'] : 0; |
| 100 |
|
| 101 |
if ( ! empty( $body['refresh_token'] ) ) { |
| 102 |
$encrypted_new_token = OAuthCrypto::encrypt( $body['refresh_token'] ); |
| 103 |
Portal_Options::set_refresh_token( $encrypted_new_token ); |
| 104 |
} |
| 105 |
|
| 106 |
if ( $expires_in > 300 ) { |
| 107 |
$cache_data = json_encode( |
| 108 |
array( |
| 109 |
'accessToken' => $body['access_token'], |
| 110 |
'expiresAt' => time() + $expires_in, |
| 111 |
) |
| 112 |
); |
| 113 |
set_transient( self::CACHE_KEY, $cache_data, $expires_in - 300 ); |
| 114 |
} |
| 115 |
|
| 116 |
// Return ONLY the access token — refresh token stays server-side |
| 117 |
return new \WP_REST_Response( |
| 118 |
array( |
| 119 |
'accessToken' => $body['access_token'], |
| 120 |
'expiresIn' => $expires_in, |
| 121 |
), |
| 122 |
200 |
| 123 |
); |
| 124 |
} |
| 125 |
} |
| 126 |
|
