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Add experimental CORS server support
Include org.apache.cxf.rs.security.cors.CrossOriginResourceSharing implementation
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81 changes: 81 additions & 0 deletions
81
.../rest-resources/src/main/java/org/apache/brooklyn/rest/filter/CorsImplSupplierFilter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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 | ||
| * | ||
| * http://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.apache.brooklyn.rest.filter; | ||
|
|
||
| import com.google.common.annotations.VisibleForTesting; | ||
| import com.google.common.base.Preconditions; | ||
| import com.google.common.reflect.TypeToken; | ||
| import org.apache.brooklyn.api.mgmt.ManagementContext; | ||
| import org.apache.brooklyn.config.ConfigKey; | ||
| import org.apache.brooklyn.core.BrooklynFeatureEnablement; | ||
| import org.apache.brooklyn.core.config.ConfigKeys; | ||
| import org.apache.brooklyn.util.JavaGroovyEquivalents; | ||
| import org.apache.cxf.rs.security.cors.CrossOriginResourceSharingFilter; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| import javax.annotation.Nullable; | ||
| import javax.ws.rs.container.ContainerRequestContext; | ||
| import javax.ws.rs.container.ContainerResponseContext; | ||
| import javax.ws.rs.ext.Provider; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
|
|
||
| /** | ||
| * @see BrooklynFeatureEnablement#FEATURE_CORS_CXF_PROPERTY | ||
| */ | ||
| @Provider | ||
| public class CorsImplSupplierFilter extends CrossOriginResourceSharingFilter { | ||
| public static final ConfigKey<List<String>> ALLOWED_ORIGINS = ConfigKeys.newConfigKey(new TypeToken<List<String>>() {}, | ||
| BrooklynFeatureEnablement.FEATURE_CORS_CXF_PROPERTY + ".allowedOrigins", | ||
| "List of allowed origins. Access-Control-Allow-Origin header will be returned to client if Origin header in request is matching exactly a value among the list allowed origins. " + | ||
| "If AllowedOrigins is empty or not specified then all origins are allowed. " + | ||
| "No wildcard allowed origins are supported.", | ||
| Collections.<String>emptyList()); | ||
| private static final Logger LOGGER = LoggerFactory.getLogger(CorsImplSupplierFilter.class); | ||
|
|
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| private static final boolean brooklynFeatureEnabled = BrooklynFeatureEnablement.isEnabled(BrooklynFeatureEnablement.FEATURE_CORS_CXF_PROPERTY); | ||
| static { | ||
| if (brooklynFeatureEnabled) { | ||
| LOGGER.info("CORS brooklyn feature enabled."); | ||
| } | ||
| } | ||
|
|
||
| @VisibleForTesting | ||
| public CorsImplSupplierFilter(@Nullable ManagementContext mgmt) { | ||
| setFindResourceMethod(false); | ||
| Preconditions.checkNotNull(mgmt,"ManagementContext should be suppplied to CORS filter."); | ||
| setAllowOrigins(JavaGroovyEquivalents.<List<String>>elvis( | ||
| mgmt.getConfig().getConfig(ALLOWED_ORIGINS), Collections.<String>emptyList())); | ||
| } | ||
|
|
||
| @Override | ||
| public void filter(ContainerRequestContext requestContext) { | ||
| if (brooklynFeatureEnabled) { | ||
| super.filter(requestContext); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) { | ||
| if (brooklynFeatureEnabled) { | ||
| super.filter(requestContext, responseContext); | ||
| } | ||
| } | ||
| } |
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