1<?php
2
3namespace OAuth\OAuth2\Service;
4
5use OAuth\OAuth2\Token\StdOAuth2Token;
6use OAuth\Common\Http\Exception\TokenResponseException;
7use OAuth\Common\Http\Uri\Uri;
8use OAuth\Common\Consumer\CredentialsInterface;
9use OAuth\Common\Http\Client\ClientInterface;
10use OAuth\Common\Storage\TokenStorageInterface;
11use OAuth\Common\Http\Uri\UriInterface;
12
13class Mailchimp extends AbstractService
14{
15    public function __construct(
16        CredentialsInterface $credentials,
17        ClientInterface $httpClient,
18        TokenStorageInterface $storage,
19        $scopes = array(),
20        UriInterface $baseApiUri = null
21    ) {
22        parent::__construct($credentials, $httpClient, $storage, $scopes, $baseApiUri);
23
24        if (is_null($this->baseApiUri) && $storage->hasAccessToken($this->service())) {
25            $this->setBaseApiUri($storage->retrieveAccessToken($this->service()));
26        }
27    }
28
29    /**
30     * {@inheritdoc}
31     */
32    protected function getAuthorizationMethod()
33    {
34        return static::AUTHORIZATION_METHOD_QUERY_STRING_V3;
35    }
36
37    /**
38     * {@inheritdoc}
39     */
40    public function getAuthorizationEndpoint()
41    {
42        return new Uri('https://login.mailchimp.com/oauth2/authorize');
43    }
44
45    /**
46     * {@inheritdoc}
47     */
48    public function getAccessTokenEndpoint()
49    {
50        return new Uri('https://login.mailchimp.com/oauth2/token');
51    }
52
53    /**
54     * {@inheritdoc}
55     */
56    protected function parseAccessTokenResponse($responseBody)
57    {
58        // Parse JSON
59        $data = json_decode($responseBody, true);
60
61        // Do validation.
62        if (null === $data || !is_array($data)) {
63            throw new TokenResponseException('Unable to parse response.');
64        } elseif (isset($data['error'])) {
65            throw new TokenResponseException('Error in retrieving token: "' . $data['error'] . '"');
66        }
67
68        // Create token object.
69        $token = new StdOAuth2Token($data['access_token']);
70
71        // Set the right API endpoint.
72        $this->setBaseApiUri($token);
73
74        // Mailchimp tokens evidently never expire...
75        $token->setEndOfLife(StdOAuth2Token::EOL_NEVER_EXPIRES);
76
77        return $token;
78    }
79
80    /**
81     * {@inheritdoc}
82     */
83    public function request($path, $method = 'GET', $body = null, array $extraHeaders = array())
84    {
85        if (is_null($this->baseApiUri)) {
86            $this->setBaseApiUri($this->storage->retrieveAccessToken($this->service()));
87        }
88
89        return parent::request($path, $method, $body, $extraHeaders);
90    }
91
92    /**
93     * Set the right base endpoint.
94     *
95     * @param StdOAuth2Token $token
96     */
97    protected function setBaseApiUri(StdOAuth2Token $token)
98    {
99        // Make request uri.
100        $endpoint = 'https://login.mailchimp.com/oauth2/metadata?oauth_token='. $token->getAccessToken();
101
102        // Grab meta data about the token.
103        $response = $this->httpClient->retrieveResponse(new Uri($endpoint), array(), array(), 'GET');
104
105        // Parse JSON.
106        $meta = json_decode($response, true);
107
108        // Set base api uri.
109        $this->baseApiUri = new Uri('https://'. $meta['dc'] .'.api.mailchimp.com/2.0/');
110
111        // Allow chaining.
112        return $this;
113    }
114}
115