54 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
			
		
		
	
	
			54 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			PHP
		
	
	
	
<?php
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namespace BookStack\Access\Oidc;
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use InvalidArgumentException;
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use League\OAuth2\Client\Token\AccessToken;
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class OidcAccessToken extends AccessToken
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{
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    /**
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     * Constructs an access token.
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     *
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     * @param array $options An array of options returned by the service provider
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     *                       in the access token request. The `access_token` option is required.
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     *
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     * @throws InvalidArgumentException if `access_token` is not provided in `$options`.
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     */
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    public function __construct(array $options = [])
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    {
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        parent::__construct($options);
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        $this->validate($options);
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    }
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    /**
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     * Validate this access token response for OIDC.
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     * As per https://openid.net/specs/openid-connect-basic-1_0.html#TokenOK.
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     */
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    private function validate(array $options): void
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    {
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        // access_token: REQUIRED. Access Token for the UserInfo Endpoint.
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        // Performed on the extended class
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        // token_type: REQUIRED. OAuth 2.0 Token Type value. The value MUST be Bearer, as specified in OAuth 2.0
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        // Bearer Token Usage [RFC6750], for Clients using this subset.
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        // Note that the token_type value is case-insensitive.
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        if (strtolower(($options['token_type'] ?? '')) !== 'bearer') {
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            throw new InvalidArgumentException('The response token type MUST be "Bearer"');
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        }
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        // id_token: REQUIRED. ID Token.
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        if (empty($options['id_token'])) {
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            throw new InvalidArgumentException('An "id_token" property must be provided');
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        }
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    }
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    /**
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     * Get the id token value from this access token response.
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     */
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    public function getIdToken(): string
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    {
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        return $this->getValues()['id_token'];
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    }
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}
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