spring security NimbusJwtDecoder 源码
spring security NimbusJwtDecoder 代码
文件路径：/oauth2/oauth2-jose/src/main/java/org/springframework/security/oauth2/jwt/NimbusJwtDecoder.java
/*
* Copyright 2002-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.security.oauth2.jwt;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.interfaces.RSAPublicKey;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import java.util.function.Consumer;
import javax.crypto.SecretKey;
import com.nimbusds.jose.JOSEException;
import com.nimbusds.jose.JWSAlgorithm;
import com.nimbusds.jose.RemoteKeySourceException;
import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.jwk.source.JWKSetCache;
import com.nimbusds.jose.jwk.source.JWKSource;
import com.nimbusds.jose.jwk.source.RemoteJWKSet;
import com.nimbusds.jose.proc.JWSKeySelector;
import com.nimbusds.jose.proc.JWSVerificationKeySelector;
import com.nimbusds.jose.proc.SecurityContext;
import com.nimbusds.jose.proc.SingleKeyJWSKeySelector;
import com.nimbusds.jose.util.Resource;
import com.nimbusds.jose.util.ResourceRetriever;
import com.nimbusds.jwt.JWT;
import com.nimbusds.jwt.JWTClaimsSet;
import com.nimbusds.jwt.JWTParser;
import com.nimbusds.jwt.PlainJWT;
import com.nimbusds.jwt.proc.ConfigurableJWTProcessor;
import com.nimbusds.jwt.proc.DefaultJWTProcessor;
import com.nimbusds.jwt.proc.JWTProcessor;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cache.Cache;
import org.springframework.core.convert.converter.Converter;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.RequestEntity;
import org.springframework.http.ResponseEntity;
import org.springframework.security.oauth2.core.OAuth2Error;
import org.springframework.security.oauth2.core.OAuth2TokenValidator;
import org.springframework.security.oauth2.core.OAuth2TokenValidatorResult;
import org.springframework.security.oauth2.jose.jws.MacAlgorithm;
import org.springframework.security.oauth2.jose.jws.SignatureAlgorithm;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
import org.springframework.web.client.RestOperations;
import org.springframework.web.client.RestTemplate;
/**
* A low-level Nimbus implementation of {@link JwtDecoder} which takes a raw Nimbus
* configuration.
*
* @author Josh Cummings
* @author Joe Grandja
* @author Mykyta Bezverkhyi
* @since 5.2
*/
public final class NimbusJwtDecoder implements JwtDecoder {
private final Log logger = LogFactory.getLog(getClass());
private static final String DECODING_ERROR_MESSAGE_TEMPLATE = "An error occurred while attempting to decode the Jwt: %s";
private final JWTProcessor<SecurityContext> jwtProcessor;
private Converter<Map<String, Object>, Map<String, Object>> claimSetConverter = MappedJwtClaimSetConverter
.withDefaults(Collections.emptyMap());
private OAuth2TokenValidator<Jwt> jwtValidator = JwtValidators.createDefault();
/**
* Configures a {@link NimbusJwtDecoder} with the given parameters
* @param jwtProcessor - the {@link JWTProcessor} to use
*/
public NimbusJwtDecoder(JWTProcessor<SecurityContext> jwtProcessor) {
Assert.notNull(jwtProcessor, "jwtProcessor cannot be null");
this.jwtProcessor = jwtProcessor;
}
/**
* Use this {@link Jwt} Validator
* @param jwtValidator - the Jwt Validator to use
*/
public void setJwtValidator(OAuth2TokenValidator<Jwt> jwtValidator) {
Assert.notNull(jwtValidator, "jwtValidator cannot be null");
this.jwtValidator = jwtValidator;
}
/**
* Use the following {@link Converter} for manipulating the JWT's claim set
* @param claimSetConverter the {@link Converter} to use
*/
public void setClaimSetConverter(Converter<Map<String, Object>, Map<String, Object>> claimSetConverter) {
Assert.notNull(claimSetConverter, "claimSetConverter cannot be null");
this.claimSetConverter = claimSetConverter;
}
/**
* Decode and validate the JWT from its compact claims representation format
* @param token the JWT value
* @return a validated {@link Jwt}
* @throws JwtException
*/
@Override
public Jwt decode(String token) throws JwtException {
JWT jwt = parse(token);
if (jwt instanceof PlainJWT) {
this.logger.trace("Failed to decode unsigned token");
throw new BadJwtException("Unsupported algorithm of " + jwt.getHeader().getAlgorithm());
}
Jwt createdJwt = createJwt(token, jwt);
return validateJwt(createdJwt);
}
private JWT parse(String token) {
try {
return JWTParser.parse(token);
}
catch (Exception ex) {
this.logger.trace("Failed to parse token", ex);
throw new BadJwtException(String.format(DECODING_ERROR_MESSAGE_TEMPLATE, ex.getMessage()), ex);
}
}
private Jwt createJwt(String token, JWT parsedJwt) {
try {
// Verify the signature
JWTClaimsSet jwtClaimsSet = this.jwtProcessor.process(parsedJwt, null);
Map<String, Object> headers = new LinkedHashMap<>(parsedJwt.getHeader().toJSONObject());
Map<String, Object> claims = this.claimSetConverter.convert(jwtClaimsSet.getClaims());
// @formatter:off
return Jwt.withTokenValue(token)
.headers((h) -> h.putAll(headers))
.claims((c) -> c.putAll(claims))
.build();
// @formatter:on
}
catch (RemoteKeySourceException ex) {
this.logger.trace("Failed to retrieve JWK set", ex);
if (ex.getCause() instanceof ParseException) {
throw new JwtException(String.format(DECODING_ERROR_MESSAGE_TEMPLATE, "Malformed Jwk set"), ex);
}
throw new JwtException(String.format(DECODING_ERROR_MESSAGE_TEMPLATE, ex.getMessage()), ex);
}
catch (JOSEException ex) {
this.logger.trace("Failed to process JWT", ex);
throw new JwtException(String.format(DECODING_ERROR_MESSAGE_TEMPLATE, ex.getMessage()), ex);
}
catch (Exception ex) {
this.logger.trace("Failed to process JWT", ex);
if (ex.getCause() instanceof ParseException) {
throw new BadJwtException(String.format(DECODING_ERROR_MESSAGE_TEMPLATE, "Malformed payload"), ex);
}
throw new BadJwtException(String.format(DECODING_ERROR_MESSAGE_TEMPLATE, ex.getMessage()), ex);
}
}
private Jwt validateJwt(Jwt jwt) {
OAuth2TokenValidatorResult result = this.jwtValidator.validate(jwt);
if (result.hasErrors()) {
Collection<OAuth2Error> errors = result.getErrors();
String validationErrorString = getJwtValidationExceptionMessage(errors);
throw new JwtValidationException(validationErrorString, errors);
}
return jwt;
}
private String getJwtValidationExceptionMessage(Collection<OAuth2Error> errors) {
for (OAuth2Error oAuth2Error : errors) {
if (!StringUtils.isEmpty(oAuth2Error.getDescription())) {
return String.format(DECODING_ERROR_MESSAGE_TEMPLATE, oAuth2Error.getDescription());
}
}
return "Unable to validate Jwt";
}
/**
* Use the given <a href="https://tools.ietf.org/html/rfc7517#section-5">JWK Set</a>
* uri.
* @param jwkSetUri the JWK Set uri to use
* @return a {@link JwkSetUriJwtDecoderBuilder} for further configurations
*/
public static JwkSetUriJwtDecoderBuilder withJwkSetUri(String jwkSetUri) {
return new JwkSetUriJwtDecoderBuilder(jwkSetUri);
}
/**
* Use the given public key to validate JWTs
* @param key the public key to use
* @return a {@link PublicKeyJwtDecoderBuilder} for further configurations
*/
public static PublicKeyJwtDecoderBuilder withPublicKey(RSAPublicKey key) {
return new PublicKeyJwtDecoderBuilder(key);
}
/**
* Use the given {@code SecretKey} to validate the MAC on a JSON Web Signature (JWS).
* @param secretKey the {@code SecretKey} used to validate the MAC
* @return a {@link SecretKeyJwtDecoderBuilder} for further configurations
*/
public static SecretKeyJwtDecoderBuilder withSecretKey(SecretKey secretKey) {
return new SecretKeyJwtDecoderBuilder(secretKey);
}
/**
* A builder for creating {@link NimbusJwtDecoder} instances based on a
* <a target="_blank" href="https://tools.ietf.org/html/rfc7517#section-5">JWK Set</a>
* uri.
*/
public static final class JwkSetUriJwtDecoderBuilder {
private String jwkSetUri;
private Set<SignatureAlgorithm> signatureAlgorithms = new HashSet<>();
private RestOperations restOperations = new RestTemplate();
private Cache cache;
private Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer;
private JwkSetUriJwtDecoderBuilder(String jwkSetUri) {
Assert.hasText(jwkSetUri, "jwkSetUri cannot be empty");
this.jwkSetUri = jwkSetUri;
this.jwtProcessorCustomizer = (processor) -> {
};
}
/**
* Append the given signing
* <a href="https://tools.ietf.org/html/rfc7515#section-4.1.1" target=
* "_blank">algorithm</a> to the set of algorithms to use.
* @param signatureAlgorithm the algorithm to use
* @return a {@link JwkSetUriJwtDecoderBuilder} for further configurations
*/
public JwkSetUriJwtDecoderBuilder jwsAlgorithm(SignatureAlgorithm signatureAlgorithm) {
Assert.notNull(signatureAlgorithm, "signatureAlgorithm cannot be null");
this.signatureAlgorithms.add(signatureAlgorithm);
return this;
}
/**
* Configure the list of
* <a href="https://tools.ietf.org/html/rfc7515#section-4.1.1" target=
* "_blank">algorithms</a> to use with the given {@link Consumer}.
* @param signatureAlgorithmsConsumer a {@link Consumer} for further configuring
* the algorithm list
* @return a {@link JwkSetUriJwtDecoderBuilder} for further configurations
*/
public JwkSetUriJwtDecoderBuilder jwsAlgorithms(Consumer<Set<SignatureAlgorithm>> signatureAlgorithmsConsumer) {
Assert.notNull(signatureAlgorithmsConsumer, "signatureAlgorithmsConsumer cannot be null");
signatureAlgorithmsConsumer.accept(this.signatureAlgorithms);
return this;
}
/**
* Use the given {@link RestOperations} to coordinate with the authorization
* servers indicated in the
* <a href="https://tools.ietf.org/html/rfc7517#section-5">JWK Set</a> uri as well
* as the <a href=
* "https://openid.net/specs/openid-connect-core-1_0.html#IssuerIdentifier">Issuer</a>.
* @param restOperations
* @return
*/
public JwkSetUriJwtDecoderBuilder restOperations(RestOperations restOperations) {
Assert.notNull(restOperations, "restOperations cannot be null");
this.restOperations = restOperations;
return this;
}
/**
* Use the given {@link Cache} to store
* <a href="https://tools.ietf.org/html/rfc7517#section-5">JWK Set</a>.
* @param cache the {@link Cache} to be used to store JWK Set
* @return a {@link JwkSetUriJwtDecoderBuilder} for further configurations
* @since 5.4
*/
public JwkSetUriJwtDecoderBuilder cache(Cache cache) {
Assert.notNull(cache, "cache cannot be null");
this.cache = cache;
return this;
}
/**
* Use the given {@link Consumer} to customize the {@link JWTProcessor
* ConfigurableJWTProcessor} before passing it to the build
* {@link NimbusJwtDecoder}.
* @param jwtProcessorCustomizer the callback used to alter the processor
* @return a {@link JwkSetUriJwtDecoderBuilder} for further configurations
* @since 5.4
*/
public JwkSetUriJwtDecoderBuilder jwtProcessorCustomizer(
Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer) {
Assert.notNull(jwtProcessorCustomizer, "jwtProcessorCustomizer cannot be null");
this.jwtProcessorCustomizer = jwtProcessorCustomizer;
return this;
}
JWSKeySelector<SecurityContext> jwsKeySelector(JWKSource<SecurityContext> jwkSource) {
if (this.signatureAlgorithms.isEmpty()) {
return new JWSVerificationKeySelector<>(JWSAlgorithm.RS256, jwkSource);
}
Set<JWSAlgorithm> jwsAlgorithms = new HashSet<>();
for (SignatureAlgorithm signatureAlgorithm : this.signatureAlgorithms) {
JWSAlgorithm jwsAlgorithm = JWSAlgorithm.parse(signatureAlgorithm.getName());
jwsAlgorithms.add(jwsAlgorithm);
}
return new JWSVerificationKeySelector<>(jwsAlgorithms, jwkSource);
}
JWKSource<SecurityContext> jwkSource(ResourceRetriever jwkSetRetriever) {
if (this.cache == null) {
return new RemoteJWKSet<>(toURL(this.jwkSetUri), jwkSetRetriever);
}
ResourceRetriever cachingJwkSetRetriever = new CachingResourceRetriever(this.cache, jwkSetRetriever);
return new RemoteJWKSet<>(toURL(this.jwkSetUri), cachingJwkSetRetriever, new NoOpJwkSetCache());
}
JWTProcessor<SecurityContext> processor() {
ResourceRetriever jwkSetRetriever = new RestOperationsResourceRetriever(this.restOperations);
JWKSource<SecurityContext> jwkSource = jwkSource(jwkSetRetriever);
ConfigurableJWTProcessor<SecurityContext> jwtProcessor = new DefaultJWTProcessor<>();
jwtProcessor.setJWSKeySelector(jwsKeySelector(jwkSource));
// Spring Security validates the claim set independent from Nimbus
jwtProcessor.setJWTClaimsSetVerifier((claims, context) -> {
});
this.jwtProcessorCustomizer.accept(jwtProcessor);
return jwtProcessor;
}
/**
* Build the configured {@link NimbusJwtDecoder}.
* @return the configured {@link NimbusJwtDecoder}
*/
public NimbusJwtDecoder build() {
return new NimbusJwtDecoder(processor());
}
private static URL toURL(String url) {
try {
return new URL(url);
}
catch (MalformedURLException ex) {
throw new IllegalArgumentException("Invalid JWK Set URL \"" + url + "\" : " + ex.getMessage(), ex);
}
}
private static class NoOpJwkSetCache implements JWKSetCache {
@Override
public void put(JWKSet jwkSet) {
}
@Override
public JWKSet get() {
return null;
}
@Override
public boolean requiresRefresh() {
return true;
}
}
private static class CachingResourceRetriever implements ResourceRetriever {
private final Cache cache;
private final ResourceRetriever resourceRetriever;
CachingResourceRetriever(Cache cache, ResourceRetriever resourceRetriever) {
this.cache = cache;
this.resourceRetriever = resourceRetriever;
}
@Override
public Resource retrieveResource(URL url) throws IOException {
try {
String jwkSet = this.cache.get(url.toString(),
() -> this.resourceRetriever.retrieveResource(url).getContent());
return new Resource(jwkSet, "UTF-8");
}
catch (Cache.ValueRetrievalException ex) {
Throwable thrownByValueLoader = ex.getCause();
if (thrownByValueLoader instanceof IOException) {
throw (IOException) thrownByValueLoader;
}
throw new IOException(thrownByValueLoader);
}
catch (Exception ex) {
throw new IOException(ex);
}
}
}
private static class RestOperationsResourceRetriever implements ResourceRetriever {
private static final MediaType APPLICATION_JWK_SET_JSON = new MediaType("application", "jwk-set+json");
private final RestOperations restOperations;
RestOperationsResourceRetriever(RestOperations restOperations) {
Assert.notNull(restOperations, "restOperations cannot be null");
this.restOperations = restOperations;
}
@Override
public Resource retrieveResource(URL url) throws IOException {
HttpHeaders headers = new HttpHeaders();
headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON, APPLICATION_JWK_SET_JSON));
ResponseEntity<String> response = getResponse(url, headers);
if (response.getStatusCodeValue() != 200) {
throw new IOException(response.toString());
}
return new Resource(response.getBody(), "UTF-8");
}
private ResponseEntity<String> getResponse(URL url, HttpHeaders headers) throws IOException {
try {
RequestEntity<Void> request = new RequestEntity<>(headers, HttpMethod.GET, url.toURI());
return this.restOperations.exchange(request, String.class);
}
catch (Exception ex) {
throw new IOException(ex);
}
}
}
}
/**
* A builder for creating {@link NimbusJwtDecoder} instances based on a public key.
*/
public static final class PublicKeyJwtDecoderBuilder {
private JWSAlgorithm jwsAlgorithm;
private RSAPublicKey key;
private Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer;
private PublicKeyJwtDecoderBuilder(RSAPublicKey key) {
Assert.notNull(key, "key cannot be null");
this.jwsAlgorithm = JWSAlgorithm.RS256;
this.key = key;
this.jwtProcessorCustomizer = (processor) -> {
};
}
/**
* Use the given signing
* <a href="https://tools.ietf.org/html/rfc7515#section-4.1.1" target=
* "_blank">algorithm</a>.
*
* The value should be one of
* <a href="https://tools.ietf.org/html/rfc7518#section-3.3" target=
* "_blank">RS256, RS384, or RS512</a>.
* @param signatureAlgorithm the algorithm to use
* @return a {@link PublicKeyJwtDecoderBuilder} for further configurations
*/
public PublicKeyJwtDecoderBuilder signatureAlgorithm(SignatureAlgorithm signatureAlgorithm) {
Assert.notNull(signatureAlgorithm, "signatureAlgorithm cannot be null");
this.jwsAlgorithm = JWSAlgorithm.parse(signatureAlgorithm.getName());
return this;
}
/**
* Use the given {@link Consumer} to customize the {@link JWTProcessor
* ConfigurableJWTProcessor} before passing it to the build
* {@link NimbusJwtDecoder}.
* @param jwtProcessorCustomizer the callback used to alter the processor
* @return a {@link PublicKeyJwtDecoderBuilder} for further configurations
* @since 5.4
*/
public PublicKeyJwtDecoderBuilder jwtProcessorCustomizer(
Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer) {
Assert.notNull(jwtProcessorCustomizer, "jwtProcessorCustomizer cannot be null");
this.jwtProcessorCustomizer = jwtProcessorCustomizer;
return this;
}
JWTProcessor<SecurityContext> processor() {
Assert.state(JWSAlgorithm.Family.RSA.contains(this.jwsAlgorithm),
() -> "The provided key is of type RSA; however the signature algorithm is of some other type: "
+ this.jwsAlgorithm + ". Please indicate one of RS256, RS384, or RS512.");
JWSKeySelector<SecurityContext> jwsKeySelector = new SingleKeyJWSKeySelector<>(this.jwsAlgorithm, this.key);
DefaultJWTProcessor<SecurityContext> jwtProcessor = new DefaultJWTProcessor<>();
jwtProcessor.setJWSKeySelector(jwsKeySelector);
// Spring Security validates the claim set independent from Nimbus
jwtProcessor.setJWTClaimsSetVerifier((claims, context) -> {
});
this.jwtProcessorCustomizer.accept(jwtProcessor);
return jwtProcessor;
}
/**
* Build the configured {@link NimbusJwtDecoder}.
* @return the configured {@link NimbusJwtDecoder}
*/
public NimbusJwtDecoder build() {
return new NimbusJwtDecoder(processor());
}
}
/**
* A builder for creating {@link NimbusJwtDecoder} instances based on a
* {@code SecretKey}.
*/
public static final class SecretKeyJwtDecoderBuilder {
private final SecretKey secretKey;
private JWSAlgorithm jwsAlgorithm = JWSAlgorithm.HS256;
private Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer;
private SecretKeyJwtDecoderBuilder(SecretKey secretKey) {
Assert.notNull(secretKey, "secretKey cannot be null");
this.secretKey = secretKey;
this.jwtProcessorCustomizer = (processor) -> {
};
}
/**
* Use the given
* <a href="https://tools.ietf.org/html/rfc7515#section-4.1.1" target=
* "_blank">algorithm</a> when generating the MAC.
*
* The value should be one of
* <a href="https://tools.ietf.org/html/rfc7518#section-3.2" target=
* "_blank">HS256, HS384 or HS512</a>.
* @param macAlgorithm the MAC algorithm to use
* @return a {@link SecretKeyJwtDecoderBuilder} for further configurations
*/
public SecretKeyJwtDecoderBuilder macAlgorithm(MacAlgorithm macAlgorithm) {
Assert.notNull(macAlgorithm, "macAlgorithm cannot be null");
this.jwsAlgorithm = JWSAlgorithm.parse(macAlgorithm.getName());
return this;
}
/**
* Use the given {@link Consumer} to customize the {@link JWTProcessor
* ConfigurableJWTProcessor} before passing it to the build
* {@link NimbusJwtDecoder}.
* @param jwtProcessorCustomizer the callback used to alter the processor
* @return a {@link SecretKeyJwtDecoderBuilder} for further configurations
* @since 5.4
*/
public SecretKeyJwtDecoderBuilder jwtProcessorCustomizer(
Consumer<ConfigurableJWTProcessor<SecurityContext>> jwtProcessorCustomizer) {
Assert.notNull(jwtProcessorCustomizer, "jwtProcessorCustomizer cannot be null");
this.jwtProcessorCustomizer = jwtProcessorCustomizer;
return this;
}
/**
* Build the configured {@link NimbusJwtDecoder}.
* @return the configured {@link NimbusJwtDecoder}
*/
public NimbusJwtDecoder build() {
return new NimbusJwtDecoder(processor());
}
JWTProcessor<SecurityContext> processor() {
JWSKeySelector<SecurityContext> jwsKeySelector = new SingleKeyJWSKeySelector<>(this.jwsAlgorithm,
this.secretKey);
DefaultJWTProcessor<SecurityContext> jwtProcessor = new DefaultJWTProcessor<>();
jwtProcessor.setJWSKeySelector(jwsKeySelector);
// Spring Security validates the claim set independent from Nimbus
jwtProcessor.setJWTClaimsSetVerifier((claims, context) -> {
});
this.jwtProcessorCustomizer.accept(jwtProcessor);
return jwtProcessor;
}
}
}
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