File lib/Worldline/Acquiring/Sdk/Authentication/DefaultOAuth2TokenCache.php

1:	<?php
2:	namespace Worldline\Acquiring\Sdk\Authentication;
3:
4:	/**
5:	* Class DefaultOAuth2TokenCache
6:	*
7:	* @package Worldline\Acquiring\Sdk\Authentication
8:	*/
9:	class DefaultOAuth2TokenCache implements OAuth2TokenCache
10:	{
11:	const OAUTH2_ACCESS_TOKEN_PREFIX = 'acquiring.api.oauth2.access-token';
12:	const EXPIRATION_TIMESTAMP_PREFIX = 'acquiring.api.oauth2.expiration-timestamp';
13:
14:	/** @var array<string, string> */
15:	private $array;
16:
17:	/**
18:	* @param array<string, string>$array an array in which the cached OAuth2 access token and expiration timestamp will be stored.
19:	*/
20:	public function __construct(&$array = array())
21:	{
22:	$this->array = &$array;
23:	}
24:
25:	/**
26:	* @param string $tokenIdentifier An identifier for the access token, derived from the URI path.
27:	* @return string\|null The currently cached OAuth2 access token, or null if not set or expired.
28:	*/
29:	public function getOAuth2AccessToken(string $tokenIdentifier)
30:	{
31:	$accessTokenKey = $this->addPrefix($tokenIdentifier, self::OAUTH2_ACCESS_TOKEN_PREFIX);
32:	$timestampKey = $this->addPrefix($tokenIdentifier, self::EXPIRATION_TIMESTAMP_PREFIX);
33:	if (isset($this->array[$accessTokenKey]) && isset($this->array[$timestampKey])) {
34:	$expirationTimestamp = intval($this->array[$timestampKey]);
35:	if ($expirationTimestamp > time()) {
36:	return $this->array[$accessTokenKey];
37:	}
38:	}
39:	return null;
40:	}
41:
42:	/**
43:	* @param string $tokenIdentifier An identifier for the access token, derived from the URI path.
44:	* @param string $oauth2AccessToken The OAuth2 access token to store.
45:	* @param int $expirationTimestamp The timestamp the OAuth2 access token expires, as a number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).
46:	*/
47:	public function storeOAuth2AccessToken($tokenIdentifier, $oauth2AccessToken, $expirationTimestamp)
48:	{
49:	$this->array[$this->addPrefix($tokenIdentifier, self::OAUTH2_ACCESS_TOKEN_PREFIX)] = $oauth2AccessToken;
50:	$this->array[$this->addPrefix($tokenIdentifier, self::EXPIRATION_TIMESTAMP_PREFIX)] = strval($expirationTimestamp);
51:	}
52:
53:	private function addPrefix($tokenIdentifier, $prefix)
54:	{
55:	if (!$tokenIdentifier) {
56:	return $prefix;
57:	}
58:	return $prefix . '/' . $tokenIdentifier;
59:	}
60:	}
61:

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