<?php
namespace OAuth\OAuth2\Service;
use OAuth\OAuth2\Token\StdOAuth2Token;
use OAuth\Common\Http\Exception\TokenResponseException;
use OAuth\Common\Http\Uri\Uri;
use OAuth\Common\Consumer\CredentialsInterface;
use OAuth\Common\Http\Uri\UriInterface;
use OAuth\Common\Storage\TokenStorageInterface;
use OAuth\Common\Http\Client\ClientInterface;
/**
* Buffer API.
* @author Sumukh Sridhara <@sumukhsridhara>
* @link https://bufferapp.com/developers/api
*/
class Buffer extends AbstractService
{
public function __construct(
CredentialsInterface $credentials,
ClientInterface $httpClient,
TokenStorageInterface $storage,
$scopes = array(),
UriInterface $baseApiUri = null
) {
parent::__construct($credentials, $httpClient, $storage, $scopes, $baseApiUri);
if ($baseApiUri === null) {
$this->baseApiUri = new Uri('https://api.bufferapp.com/1/');
}
}
/**
* {@inheritdoc}
*/
public function getAuthorizationEndpoint()
{
return new Uri('https://bufferapp.com/oauth2/authorize');
}
/**
* {@inheritdoc}
*/
public function getAccessTokenEndpoint()
{
return new Uri('https://api.bufferapp.com/1/oauth2/token.json');
}
/**
* {@inheritdoc}
*/
protected function getAuthorizationMethod()
{
return static::AUTHORIZATION_METHOD_QUERY_STRING;
}
/**
* {@inheritdoc}
*/
public function getAuthorizationUri(array $additionalParameters = array())
{
$parameters = array_merge(
$additionalParameters,
array(
'client_id' => $this->credentials->getConsumerId(),
'redirect_uri' => $this->credentials->getCallbackUrl(),
'response_type' => 'code',
)
);
// Build the url
$url = clone $this->getAuthorizationEndpoint();
foreach ($parameters as $key => $val) {
$url->addToQuery($key, $val);
}
return $url;
}
/**
* {@inheritdoc}
*/
public function requestRequestToken()
{
$responseBody = $this->httpClient->retrieveResponse(
$this->getRequestTokenEndpoint(),
array(
'client_key' => $this->credentials->getConsumerId(),
'redirect_uri' => $this->credentials->getCallbackUrl(),
'response_type' => 'code',
)
);
$code = $this->parseRequestTokenResponse($responseBody);
return $code;
}
protected function parseRequestTokenResponse($responseBody)
{
parse_str($responseBody, $data);
if (null === $data || !is_array($data)) {
throw new TokenResponseException('Unable to parse response.');
} elseif (!isset($data['code'])) {
throw new TokenResponseException('Error in retrieving code.');
}
return $data['code'];
}
public function requestAccessToken($code, $state = null)
{
$bodyParams = array(
'client_id' => $this->credentials->getConsumerId(),
'client_secret' => $this->credentials->getConsumerSecret(),
'redirect_uri' => $this->credentials->getCallbackUrl(),
'code' => $code,
'grant_type' => 'authorization_code',
);
$responseBody = $this->httpClient->retrieveResponse(
$this->getAccessTokenEndpoint(),
$bodyParams,
$this->getExtraOAuthHeaders()
);
$token = $this->parseAccessTokenResponse($responseBody);
$this->storage->storeAccessToken($this->service(), $token);
return $token;
}
protected function parseAccessTokenResponse($responseBody)
{
$data = json_decode($responseBody, true);
if ($data === null || !is_array($data)) {
throw new TokenResponseException('Unable to parse response.');
} elseif (isset($data['error'])) {
throw new TokenResponseException('Error in retrieving token: "' . $data['error'] . '"');
}
$token = new StdOAuth2Token();
$token->setAccessToken($data['access_token']);
$token->setEndOfLife(StdOAuth2Token::EOL_NEVER_EXPIRES);
unset($data['access_token']);
$token->setExtraParams($data);
return $token;
}
}