Java Сервер и клиент Tomcat Jersey 403 Ошибка при попытке доступа к серверу в контейнере OpenShift, но работает на локальном хосте - PullRequest
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Java Сервер и клиент Tomcat Jersey 403 Ошибка при попытке доступа к серверу в контейнере OpenShift, но работает на локальном хосте

0 голосов
/ 25 февраля 2020

Мы пытаемся развернуть наш проект java на сервере Tomcat в среде OpenShift. Странно то, что он работает на localhost, он также работает при открытии терминала в клиентском модуле OpenShift и использовании curl. Но когда приложение java, запущенное в клиентском модуле, пытается вернуть сообщение об ошибке 403.

Кто-нибудь знает, что мы делаем неправильно / отсутствуют? Вот некоторая информация, касающаяся приложений и среды:

Серверная часть зависимостей POM: 

<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-client</artifactId>
    <version>2.24</version>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-server</artifactId>
    <version>2.24</version>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-servlet</artifactId>
    <version>2.24</version>
</dependency>

Серверная часть сети. xml: 

<servlet>
    <servlet-name>Our REST Endpoint</servlet-name>
    <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
    <init-param>
        <param-name>javax.ws.rs.Application</param-name>
        <param-value>com.mycompany.ourapplication.business.rest.ServiceApplication</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Our REST Endpoint</servlet-name>
    <url-pattern>/rest/*</url-pattern>
</servlet-mapping>

Содержимое сервера пакета com.mycompany.ourapplication.business.rest:

AuthenticationFilter. java

@Provider
public class AuthenticationFilter implements ContainerRequestFilter
{
    @Override
    public void filter(final ContainerRequestContext requestContext)
    {
        /* When using curl these are printed, when accessed via the client application
         * these printlns are not printed, which can only mean that it doesn't even reach this code
         */
        System.out.println("WENT INTO AUTHENTICATION FILTER");
        final Response ACCESS_DENIED = Response.status(Response.Status.UNAUTHORIZED)
            .entity("You cannot access this resource")
            .build();

        // These were also just to see if we were missing some headers, but sadly didn't fix it
        requestContext.getHeaders().add("Access-Control-Allow-Origin", "*");
        requestContext.getHeaders().add("Access-Control-Allow-Headers", "origin, content-type, accept, authorization");
        requestContext.getHeaders().add("Access-Control-Allow-Credentials", "true");
        requestContext.getHeaders().add("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD");
        requestContext.getHeaders().add("Access-Control-Max-Age", "1209600");

        /* Here is some commented out authentication code (not shown)
         * to see if it was part of the problem...but doesn't seem to be
         */

        System.out.println("AUTHENTICATION FILTER SUCCESSFULL");
    }
}

GETServices. java (фрагмент) 

@Path("/")
public class GETServices
{
    private static final Gson   GSON        = new Gson();
    private static final String UTF8JSON    = MediaType.APPLICATION_JSON + ";charset=utf-8";

    @GET
    @Produces(UTF8JSON)
    @Consumes(UTF8JSON)
    @Path("something/category")
    public Response getCategoryList()
    {
        // This is also not reached from the client
        System.out.println("something/CATEGORY ENDPOINT REACHED!");
        final List<String> allCategories = new CategoryDAO()
            .findAll()
            .stream()
            .map(Category::getCategory)
            .collect(Collectors.toList());
        System.out.println("BUILDING RESPONSE HEADER 200...");
        return Response
            .status(200)
            .entity(GSON.toJson(allCategories))
            .build();
    }
}

ServiceApplication. java

public class ServiceApplication extends ResourceConfig
{
    public ServiceApplication()
    {
        packages(getClass().getPackage().getName());
        register(AuthenticationFilter.class);
    }
}

Вот как выглядит клиент:

Зависимости POM: 

<dependency>
    <groupId>org.glassfish.jersey.core</groupId>
    <artifactId>jersey-client</artifactId>
    <version>2.29</version>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey.containers</groupId>
    <artifactId>jersey-container-servlet</artifactId>
    <version>2.29</version>
</dependency>
<dependency>
    <groupId>org.glassfish.jersey.inject</groupId>
    <artifactId>jersey-hk2</artifactId>
    <version>2.29</version>
</dependency>

С этим классом вызываются сервисы серверов (используется метод target () с добавленным путем доступа). OurService. java

public final class OurService
{
    private static final String serviceUrl = ApplicationProperties.serviceUrl();
    private static final Client client;
    private static final Logger logger = Logger.getLogger(OurService.class.getName());

    /* On localhost it always works, we thought maybe it is because of ssl on the OpenShift platform?
     * So we implemented this dummy trustmanager to trust everything, but this didn't change anything
     * We then deactivated ssl on the OpenShift platform...still no changes
     */

    static
    {
        final TrustManager[] certs = new TrustManager[]{new X509TrustManager()
        {
            @Override
            public void checkClientTrusted(final X509Certificate[] chain, final String authType)
                throws CertificateException
            {
            }

            @Override
            public void checkServerTrusted(final X509Certificate[] chain, final String authType)
                throws CertificateException
            {
            }

            @Override
            public X509Certificate[] getAcceptedIssuers()
            {
                return null;
            }
        }};

        SSLContext ctx = null;
        try
        {
            ctx = SSLContext.getInstance("SSL");
            ctx.init(null, certs, new SecureRandom());
        }
        catch(NoSuchAlgorithmException | KeyManagementException e)
        {
            e.printStackTrace();
        }
        client = ClientBuilder
            .newBuilder()
            .register(new LoggingFeature(logger, Level.INFO, null, null))
            .build();
    }

    public static WebTarget target(final String path)
    {
        return client.target(serviceUrl + path);
    }

    private OurService()
    {
    }
}

Один из классов обслуживания: CategoryService. java

public final class CategoryService
{
    public static List<String> getCategories()
    {
        final WebTarget target = GrappService.target("something/category");

        // REST contains a plain new Gson() object
        // REST.UTF8JSON is...MediaType.APPLICATION_JSON + ";charset=utf-8"
        return REST.gson.fromJson(
            target.request(REST.UTF8JSON).get(String.class),
            new TypeToken<List<String>>(){}.getType()
        );
    }

    private CategoryService() {}
}

Конфигурация OpenShift и дамп

Сейчас я не знаю много здесь, поэтому я могу упустить некоторую важную информацию Вот сеть обслуживания для клиентское приложение: 

Type: ClusterIP
route: our-dashboard-app
service port: 8080/TCP (8080-tcp)
target port: 8080

This is what happens if I call the service from the pod terminal with curl:
sh-4.2$ curl -v "http://our-cool.external.url.given.by.openshift.local:8080/rest/something/category
* About to connect() to our-cool.external.url.given.by.openshift.local port 8080 (#0)
*   Trying (ip of it)...
* Connected to our-cool.external.url.given.by.openshift.local (ip of it) port 8080 (#0)
> GET /rest/something/category HTTP/1.1
> User-Agent: curl/7.29.0
> Host: our-cool.external.url.given.by.openshift.local:8080
> Accept: */*
>
< HTTP/1.1 200 OK
< Server: Apache-Coyote/1.1
< Content-Type: application/json;charset=utf-8
< Content-Length: 96
< Date: Tue, 25 Feb 2020 08:39:56 GMT
<
* Connection #0 to host our-cool.external.url.given.by.openshift.local left intact
["It works","and gives us","the categories","like requested"]

Стек трассировки клиентского исключения, когда оно пытается o остальные вызовы 

...........
Caused by:javax.ws.rs.ForbiddenException:HTTP 403 Forbidden
   at org.glassfish.jersey.client.JerseyInvocation.convertTo(JerseyInvocation.java:1059)
   at org.glassfish.jersey.client.JerseyInvocation.translate(JerseyInvocation.java:859)
   at org.glassfish.jersey.client.JerseyInvocation.lambda$invoke$1(JerseyInvocation.java:743)
   at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
   at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
   at org.glassfish.jersey.internal.Errors.process(Errors.java:205)
   at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:390)
   at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:741)
   at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:404)
   at org.glassfish.jersey.client.JerseyInvocation$Builder.get(JerseyInvocation.java:300)
   at path.to.our.software.services.CategoryService.getCategories(CategoryService.java:17)
   at path.to.our.software.services.Category...the view
   ... 59 more

Вот что нам дает журнал клиента: 

INFO: 3 * Sending client request on thread http-apr-8080-exec-10
3 > GET http://our-cool.external.url.given.by.openshift.local:8080/rest/something/category
3 > Accept: application/json;charset=utf-8

Feb 25, 2020 8:50:03 AM org.glassfish.jersey.logging.LoggingInterceptor log
INFO: 3 * Client response received on thread http-apr-8080-exec-10
3 < 403
3 < Cache-Control: no-cache
3 < Connection: Keep-Alive
3 < Content-Length: 2723
3 < Content-Type: text/html; charset=utf-8
3 < Pragma: no-cache
3 < Proxy-Connection: Keep-Alive
<HTML>Some html content telling us that it's a 403 access denied exception</HTML>

Сетевой сервис серверного приложения: 

Type: ClusterIP
Route: our-app-route
Serivce Port: 8080/TCP (8080-tcp)
Target Port: 8080
Hostname: http://our-cool.external.url.given.by.openshift.local

Любой помощь приветствуется!

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