Package com.google.cloud.spring.security.firebase

Class FirebaseJwtTokenDecoder

java.lang.Object

com.google.cloud.spring.security.firebase.FirebaseJwtTokenDecoder

All Implemented Interfaces:

org.springframework.security.oauth2.jwt.JwtDecoder

public class FirebaseJwtTokenDecoder
extends Object
implements org.springframework.security.oauth2.jwt.JwtDecoder

Decodes a Firebase token into a Jwt token. This decoder downloads public keys from https://www.googleapis.com/robot/v1/metadata/x509/securetoken@system.gserviceaccount.com. Keys are rotated often, and expiration date is returned as part of a Cache-Control max-age header. The keys are cached locally and only refreshed when the expiration time is past. Besides using the RSA keys to validate the token signature, this decoder also uses a pre=configured DelegatingOAuth2TokenValidator to validate all the claims. The following validators are used by this class:

• JwtTimestampValidator - Validates the expiration date of the Token
• JwtIssuerValidator - Validates the iss claim header
• FirebaseTokenValidator - Validates all other headers according to definition at https://firebase.google.com/docs/auth/admin/verify-id-tokens

Since:

1.2.2

Constructor Summary

Constructors

Constructor	Description
FirebaseJwtTokenDecoder(org.springframework.web.client.RestOperations restClient, String googlePublicKeysEndpoint, org.springframework.security.oauth2.core.OAuth2TokenValidator<org.springframework.security.oauth2.jwt.Jwt> tokenValidator)

Method Summary

Modifier and Type	Method	Description
org.springframework.security.oauth2.jwt.Jwt	decode(String token)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FirebaseJwtTokenDecoder

public FirebaseJwtTokenDecoder(org.springframework.web.client.RestOperations restClient,
 String googlePublicKeysEndpoint,
 org.springframework.security.oauth2.core.OAuth2TokenValidator<org.springframework.security.oauth2.jwt.Jwt> tokenValidator)

Method Details

decode

public org.springframework.security.oauth2.jwt.Jwt decode(String token)
                                                   throws org.springframework.security.oauth2.jwt.JwtException

Specified by:

decode in interface org.springframework.security.oauth2.jwt.JwtDecoder

Throws:

org.springframework.security.oauth2.jwt.JwtException