验证时 DefaultHostnameProvider 中的 Keycloak NullPointerException
Keycloak NullPointerException in DefaultHostnameProvider when authenticating
我已经坚持了好几个星期了，希望你能给我一些提示。
我有一个 Docker 基础设施，我在一个容器中有一个后端，在另一个容器中有 keycloak（18.0.0/最新版本）运行。当我的后端尝试处理 Keycloak returns 中的身份验证请求时，响应代码为 500.
当我查看 keycloak-container 中的日志时，我看到了 NullPointerException:`
2022-05-24 11:52:39,789 ERROR [org.keycloak.services.error.KeycloakErrorHandler] (executor-thread-4) Uncaught server error: java.lang.NullPointerException
at org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider.isHostFromFrontEndUrl(DefaultHostnameProvider.java:158)
at org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider.forNonStrictBackChannel(DefaultHostnameProvider.java:132)
at org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider.getScheme(DefaultHostnameProvider.java:60)
at org.keycloak.models.KeycloakUriInfo.<init>(KeycloakUriInfo.java:46)
at org.keycloak.services.DefaultKeycloakContext.getUri(DefaultKeycloakContext.java:78)
at org.keycloak.protocol.oidc.OIDCWellKnownProvider.getConfig(OIDCWellKnownProvider.java:111)
at org.keycloak.services.resources.RealmsResource.getWellKnown(RealmsResource.java:267)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:170)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:130)
at org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:660)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:524)
at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget(ResourceMethodInvoker.java:474)
at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:476)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:434)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:408)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:69)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:492)
at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke(SynchronousDispatcher.java:261)
at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess[=10=](SynchronousDispatcher.java:161)
at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364)
at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:164)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:247)
at io.quarkus.resteasy.runtime.standalone.RequestDispatcher.service(RequestDispatcher.java:73)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.dispatch(VertxRequestHandler.java:151)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.handle(VertxRequestHandler.java:82)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.handle(VertxRequestHandler.java:42)
at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1212)
at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:163)
at io.vertx.ext.web.impl.RoutingContextWrapper.next(RoutingContextWrapper.java:201)
at io.quarkus.vertx.http.runtime.StaticResourcesRecorder.handle(StaticResourcesRecorder.java:67)
at io.quarkus.vertx.http.runtime.StaticResourcesRecorder.handle(StaticResourcesRecorder.java:55)
at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1212)
at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:163)
at io.vertx.ext.web.impl.RoutingContextWrapper.next(RoutingContextWrapper.java:201)
at io.quarkus.vertx.http.runtime.VertxHttpRecorder.handle(VertxHttpRecorder.java:380)
at io.quarkus.vertx.http.runtime.VertxHttpRecorder.handle(VertxHttpRecorder.java:358)
at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1212)
at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:163)
at io.vertx.ext.web.impl.RoutingContextWrapper.next(RoutingContextWrapper.java:201)
at org.keycloak.quarkus.runtime.integration.web.QuarkusRequestFilter.lambda$createBlockingHandler(QuarkusRequestFilter.java:71)
at io.vertx.core.impl.ContextImpl.lambda$null[=10=](ContextImpl.java:159)
at io.vertx.core.impl.AbstractContext.dispatch(AbstractContext.java:100)
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking(ContextImpl.java:157)
at io.quarkus.vertx.core.runtime.VertxCoreRecorder.runWith(VertxCoreRecorder.java:543)
at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2449)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1478)
at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:29)
at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:29)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)
我的后端发送请求的 URL 是：http://keycloak:8080/auth/realms/my-realm/.well-known/openid-configuration
当我在 keycloak-container 中执行这个请求时，我得到了同样的错误。
当我使用 localhost 而不是 keycloak-container 中的容器名称执行此请求时，一切正常。
我不知道我做错了什么
我发现我的配置有问题。
我的后端通过内部名称与 keycloak 通信，并且 keycloak 是使用主机的 public 名称设置的。
当我设置为使用主机的 IP（不是主机的名称，因为它在容器中不可访问）时，一切都按预期工作。
我已经坚持了好几个星期了，希望你能给我一些提示。
我有一个 Docker 基础设施，我在一个容器中有一个后端，在另一个容器中有 keycloak（18.0.0/最新版本）运行。当我的后端尝试处理 Keycloak returns 中的身份验证请求时，响应代码为 500.
当我查看 keycloak-container 中的日志时，我看到了 NullPointerException:`
2022-05-24 11:52:39,789 ERROR [org.keycloak.services.error.KeycloakErrorHandler] (executor-thread-4) Uncaught server error: java.lang.NullPointerException
at org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider.isHostFromFrontEndUrl(DefaultHostnameProvider.java:158)
at org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider.forNonStrictBackChannel(DefaultHostnameProvider.java:132)
at org.keycloak.quarkus.runtime.hostname.DefaultHostnameProvider.getScheme(DefaultHostnameProvider.java:60)
at org.keycloak.models.KeycloakUriInfo.<init>(KeycloakUriInfo.java:46)
at org.keycloak.services.DefaultKeycloakContext.getUri(DefaultKeycloakContext.java:78)
at org.keycloak.protocol.oidc.OIDCWellKnownProvider.getConfig(OIDCWellKnownProvider.java:111)
at org.keycloak.services.resources.RealmsResource.getWellKnown(RealmsResource.java:267)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:170)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:130)
at org.jboss.resteasy.core.ResourceMethodInvoker.internalInvokeOnTarget(ResourceMethodInvoker.java:660)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTargetAfterFilter(ResourceMethodInvoker.java:524)
at org.jboss.resteasy.core.ResourceMethodInvoker.lambda$invokeOnTarget(ResourceMethodInvoker.java:474)
at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364)
at org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:476)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:434)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:408)
at org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:69)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:492)
at org.jboss.resteasy.core.SynchronousDispatcher.lambda$invoke(SynchronousDispatcher.java:261)
at org.jboss.resteasy.core.SynchronousDispatcher.lambda$preprocess[=10=](SynchronousDispatcher.java:161)
at org.jboss.resteasy.core.interception.jaxrs.PreMatchContainerRequestContext.filter(PreMatchContainerRequestContext.java:364)
at org.jboss.resteasy.core.SynchronousDispatcher.preprocess(SynchronousDispatcher.java:164)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:247)
at io.quarkus.resteasy.runtime.standalone.RequestDispatcher.service(RequestDispatcher.java:73)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.dispatch(VertxRequestHandler.java:151)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.handle(VertxRequestHandler.java:82)
at io.quarkus.resteasy.runtime.standalone.VertxRequestHandler.handle(VertxRequestHandler.java:42)
at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1212)
at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:163)
at io.vertx.ext.web.impl.RoutingContextWrapper.next(RoutingContextWrapper.java:201)
at io.quarkus.vertx.http.runtime.StaticResourcesRecorder.handle(StaticResourcesRecorder.java:67)
at io.quarkus.vertx.http.runtime.StaticResourcesRecorder.handle(StaticResourcesRecorder.java:55)
at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1212)
at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:163)
at io.vertx.ext.web.impl.RoutingContextWrapper.next(RoutingContextWrapper.java:201)
at io.quarkus.vertx.http.runtime.VertxHttpRecorder.handle(VertxHttpRecorder.java:380)
at io.quarkus.vertx.http.runtime.VertxHttpRecorder.handle(VertxHttpRecorder.java:358)
at io.vertx.ext.web.impl.RouteState.handleContext(RouteState.java:1212)
at io.vertx.ext.web.impl.RoutingContextImplBase.iterateNext(RoutingContextImplBase.java:163)
at io.vertx.ext.web.impl.RoutingContextWrapper.next(RoutingContextWrapper.java:201)
at org.keycloak.quarkus.runtime.integration.web.QuarkusRequestFilter.lambda$createBlockingHandler(QuarkusRequestFilter.java:71)
at io.vertx.core.impl.ContextImpl.lambda$null[=10=](ContextImpl.java:159)
at io.vertx.core.impl.AbstractContext.dispatch(AbstractContext.java:100)
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking(ContextImpl.java:157)
at io.quarkus.vertx.core.runtime.VertxCoreRecorder.runWith(VertxCoreRecorder.java:543)
at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2449)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1478)
at org.jboss.threads.DelegatingRunnable.run(DelegatingRunnable.java:29)
at org.jboss.threads.ThreadLocalResettingRunnable.run(ThreadLocalResettingRunnable.java:29)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)
我的后端发送请求的 URL 是：http://keycloak:8080/auth/realms/my-realm/.well-known/openid-configuration
当我在 keycloak-container 中执行这个请求时，我得到了同样的错误。
当我使用 localhost 而不是 keycloak-container 中的容器名称执行此请求时，一切正常。
我不知道我做错了什么
我发现我的配置有问题。 我的后端通过内部名称与 keycloak 通信，并且 keycloak 是使用主机的 public 名称设置的。
当我设置为使用主机的 IP（不是主机的名称，因为它在容器中不可访问）时，一切都按预期工作。