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Add optional scope parameter to ClientCredentialsGrantType #12

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Add optional scope parameter to ClientCredentialsGrantType #12

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13 changes: 12 additions & 1 deletion src/GrantType/ClientCredentialsGrantType.php
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Original file line number Diff line number Diff line change
Expand Up @@ -22,22 +22,27 @@ class ClientCredentialsGrantType implements GrantTypeInterface

private string $clientSecret;

private string $scope;

/**
* @param HttpClientInterface $client A HTTP client to be used to communicate with the OAuth server.
* @param string $tokenUrl The full URL of the token endpoint of the OAuth server.
* @param string $clientId The OAuth client ID.
* @param string $clientSecret The OAuth client secret.
* @param string $scope The scope of the access request.
*/
public function __construct(
HttpClientInterface $client,
string $tokenUrl,
string $clientId,
string $clientSecret,
string $scope = '',
) {
$this->client = $client;
$this->tokenUrl = $tokenUrl;
$this->clientId = $clientId;
$this->clientSecret = $clientSecret;
$this->scope = $scope;
}

/**
Expand All @@ -47,9 +52,15 @@ public function __construct(
*/
public function getTokens(): Tokens
{
$data = ['grant_type' => 'client_credentials'];

if ($this->scope !== '') {
$data['scope'] = $this->scope;
}

$response = $this->client->request('POST', $this->tokenUrl, [
'headers' => ['Authorization' => sprintf('Basic %s', base64_encode("{$this->clientId}:{$this->clientSecret}"))],
'body' => http_build_query(['grant_type' => 'client_credentials']),
'body' => http_build_query($data),
]);

return $this->extractTokens($response);
Expand Down