Add createDefaultAssertionValidatorWithParameters

Closes gh-11675

Author: jzheaux

saml2/saml2-service-provider/src/opensaml4Main/java/org/springframework/security/saml2/provider/service/authentication/OpenSaml4AuthenticationProvider.java

@@ -432,10 +432,8 @@ private static Saml2ResponseValidatorResult validateInResponseTo(AbstractSaml2Au
 	 */
 	public static Converter<AssertionToken, Saml2ResponseValidatorResult> createDefaultAssertionValidator() {
 
-		return createAssertionValidator(Saml2ErrorCodes.INVALID_ASSERTION,
-				(assertionToken) -> SAML20AssertionValidators.attributeValidator,
-				(assertionToken) -> createValidationContext(assertionToken,
-						(params) -> params.put(SAML2AssertionValidationParameters.CLOCK_SKEW, Duration.ofMinutes(5))));
+		return createDefaultAssertionValidatorWithParameters(
+				(params) -> params.put(SAML2AssertionValidationParameters.CLOCK_SKEW, Duration.ofMinutes(5)));
 	}
 
 	/**
@@ -444,14 +442,31 @@ public static Converter<AssertionToken, Saml2ResponseValidatorResult> createDefa
 	 * @param contextConverter the conversion strategy to use to generate a
 	 * {@link ValidationContext} for each assertion being validated
 	 * @return the default assertion validator strategy
+	 * @deprecated Use {@link #createDefaultAssertionValidatorWithParameters} instead
 	 */
+	@Deprecated
 	public static Converter<AssertionToken, Saml2ResponseValidatorResult> createDefaultAssertionValidator(
 			Converter<AssertionToken, ValidationContext> contextConverter) {
 
 		return createAssertionValidator(Saml2ErrorCodes.INVALID_ASSERTION,
 				(assertionToken) -> SAML20AssertionValidators.attributeValidator, contextConverter);
 	}
 
+	/**
+	 * Construct a default strategy for validating each SAML 2.0 Assertion and associated
+	 * {@link Authentication} token
+	 * @param validationContextParameters a consumer for editing the values passed to the
+	 * {@link ValidationContext} for each assertion being validated
+	 * @return the default assertion validator strategy
+	 * @since 5.8
+	 */
+	public static Converter<AssertionToken, Saml2ResponseValidatorResult> createDefaultAssertionValidatorWithParameters(
+			Consumer<Map<String, Object>> validationContextParameters) {
+		return createAssertionValidator(Saml2ErrorCodes.INVALID_ASSERTION,
+				(assertionToken) -> SAML20AssertionValidators.attributeValidator,
+				(assertionToken) -> createValidationContext(assertionToken, validationContextParameters));
+	}
+
 	/**
 	 * Construct a default strategy for converting a SAML 2.0 Response and
 	 * {@link Authentication} token into a {@link Saml2Authentication}

saml2/saml2-service-provider/src/opensaml4Test/java/org/springframework/security/saml2/provider/service/authentication/OpenSaml4AuthenticationProviderTests.java

@@ -520,6 +520,25 @@ public void authenticateWhenDelegatingToDefaultAssertionValidatorThenUses() {
 		// @formatter:on
 	}
 
+	// gh-11675
+	@Test
+	public void authenticateWhenUsingCustomAssertionValidatorThenUses() {
+		OpenSaml4AuthenticationProvider provider = new OpenSaml4AuthenticationProvider();
+		Consumer<Map<String, Object>> validationParameters = mock(Consumer.class);
+		// @formatter:off
+		provider.setAssertionValidator(OpenSaml4AuthenticationProvider
+				.createDefaultAssertionValidatorWithParameters(validationParameters));
+		// @formatter:on
+		Response response = response();
+		Assertion assertion = assertion();
+		OneTimeUse oneTimeUse = build(OneTimeUse.DEFAULT_ELEMENT_NAME);
+		assertion.getConditions().getConditions().add(oneTimeUse);
+		response.getAssertions().add(assertion);
+		Saml2AuthenticationToken token = token(signed(response), verifying(registration()));
+		provider.authenticate(token);
+		verify(validationParameters).accept(any());
+	}
+
 	@Test
 	public void authenticateWhenCustomAssertionValidatorThenUses() {
 		Converter<OpenSaml4AuthenticationProvider.AssertionToken, Saml2ResponseValidatorResult> validator = mock(