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
13/**
14 * Dropbox service.
15 *
16 * @author Flávio Heleno <flaviohbatista@gmail.com>
17 * @link https://www.dropbox.com/developers/core/docs
18 */
19class Dropbox extends AbstractService
20{
21    public function __construct(
22        CredentialsInterface $credentials,
23        ClientInterface $httpClient,
24        TokenStorageInterface $storage,
25        $scopes = array(),
26        UriInterface $baseApiUri = null
27    ) {
28        parent::__construct($credentials, $httpClient, $storage, $scopes, $baseApiUri);
29
30        if (null === $baseApiUri) {
31            $this->baseApiUri = new Uri('https://api.dropbox.com/1/');
32        }
33    }
34
35    /**
36     * {@inheritdoc}
37     */
38    public function getAuthorizationUri(array $additionalParameters = array())
39    {
40        $parameters = array_merge(
41            $additionalParameters,
42            array(
43                'client_id'     => $this->credentials->getConsumerId(),
44                'redirect_uri'  => $this->credentials->getCallbackUrl(),
45                'response_type' => 'code',
46            )
47        );
48
49        $parameters['scope'] = implode(' ', $this->scopes);
50
51        // Build the url
52        $url = clone $this->getAuthorizationEndpoint();
53        foreach ($parameters as $key => $val) {
54            $url->addToQuery($key, $val);
55        }
56
57        return $url;
58    }
59
60    /**
61     * {@inheritdoc}
62     */
63    public function getAuthorizationEndpoint()
64    {
65        return new Uri('https://www.dropbox.com/1/oauth2/authorize');
66    }
67
68    /**
69     * {@inheritdoc}
70     */
71    public function getAccessTokenEndpoint()
72    {
73        return new Uri('https://api.dropbox.com/1/oauth2/token');
74    }
75
76    /**
77     * {@inheritdoc}
78     */
79    protected function getAuthorizationMethod()
80    {
81        return static::AUTHORIZATION_METHOD_QUERY_STRING;
82    }
83
84    /**
85     * {@inheritdoc}
86     */
87    protected function parseAccessTokenResponse($responseBody)
88    {
89        $data = json_decode($responseBody, true);
90
91        if (null === $data || !is_array($data)) {
92            throw new TokenResponseException('Unable to parse response.');
93        } elseif (isset($data['error'])) {
94            throw new TokenResponseException('Error in retrieving token: "' . $data['error'] . '"');
95        }
96
97        $token = new StdOAuth2Token();
98        $token->setAccessToken($data['access_token']);
99
100        if (isset($data['refresh_token'])) {
101            $token->setRefreshToken($data['refresh_token']);
102            unset($data['refresh_token']);
103        }
104
105        unset($data['access_token']);
106
107        $token->setExtraParams($data);
108
109        return $token;
110    }
111}
112