Added a mapping for DPOP in DefaultMapOAuth2AccessTokenResponseConverter

Author: muha

oauth2/oauth2-core/src/main/java/org/springframework/security/oauth2/core/endpoint/DefaultMapOAuth2AccessTokenResponseConverter.java

@@ -70,6 +70,10 @@ private static OAuth2AccessToken.TokenType getAccessTokenType(Map<String, Object
 			.equalsIgnoreCase(getParameterValue(tokenResponseParameters, OAuth2ParameterNames.TOKEN_TYPE))) {
 			return OAuth2AccessToken.TokenType.BEARER;
 		}
+		else if (OAuth2AccessToken.TokenType.DPOP.getValue()
+				.equalsIgnoreCase(getParameterValue(tokenResponseParameters, OAuth2ParameterNames.TOKEN_TYPE))) {
+			return OAuth2AccessToken.TokenType.DPOP;
+		}
 		return null;
 	}
 

oauth2/oauth2-core/src/test/java/org/springframework/security/oauth2/core/endpoint/DefaultMapOAuth2AccessTokenResponseConverterTests.java

@@ -98,6 +98,18 @@ public void shouldConvertMinimal() {
 		assertThat(additionalParameters).isEmpty();
 	}
 
+	@Test
+	public void shouldConvertDPoPToken() {
+		Map<String, Object> map = new HashMap<>();
+		map.put("access_token", "access-token-1234");
+		map.put("token_type", "dpop");
+		OAuth2AccessTokenResponse converted = this.messageConverter.convert(map);
+		OAuth2AccessToken accessToken = converted.getAccessToken();
+		assertThat(accessToken).isNotNull();
+		assertThat(accessToken.getTokenValue()).isEqualTo("access-token-1234");
+		assertThat(accessToken.getTokenType()).isEqualTo(OAuth2AccessToken.TokenType.DPOP);
+	}
+
 	@Test
 	public void shouldConvertWithUnsupportedExpiresIn() {
 		Map<String, Object> map = new HashMap<>();