CAMEL-10985: Ignore CORS configuraion in CoAP component

components/camel-coap/src/main/java/org/apache/camel/coap/CoAPComponent.java

@@ -33,12 +33,15 @@
 import org.apache.camel.util.URISupport;
 import org.eclipse.californium.core.CoapServer;
 import org.eclipse.californium.core.network.config.NetworkConfig;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Represents the component that manages {@link CoAPEndpoint}.
  */
 public class CoAPComponent extends UriEndpointComponent implements RestConsumerFactory {
     static final int DEFAULT_PORT = 5684;
+    private static final Logger LOG = LoggerFactory.getLogger(CoAPComponent.class);
 
     final Map<Integer, CoapServer> servers = new ConcurrentHashMap<>();
 
@@ -89,6 +92,10 @@ public Consumer createConsumer(CamelContext camelContext,
             config = getCamelContext().getRestConfiguration("coap", true);
         }
 
+        if (config.isEnableCORS()) {
+            LOG.info("CORS configuration will be ignored as CORS is not supported by the CoAP component");
+        }
+
         String host = config.getHost();
         if (ObjectHelper.isEmpty(host)) {
             if (config.getRestHostNameResolver() == RestConfiguration.RestHostNameResolver.allLocalIp) {
@@ -106,24 +113,16 @@ public Consumer createConsumer(CamelContext camelContext,
             map.putAll(config.getEndpointProperties());
         }
 
-        // allow HTTP Options as we want to handle CORS in rest-dsl
-        boolean cors = config.isEnableCORS();
-
         String query = URISupport.createQueryString(map);
 
         String url = (config.getScheme() == null ? "coap" : config.getScheme()) + "://" + host;
         if (config.getPort() != -1) {
             url += ":" + config.getPort();
         }
-        String restrict = verb.toUpperCase(Locale.US);
-        if (cors) {
-            restrict += ",OPTIONS";
-        }
-
         if (uriTemplate == null) {
             uriTemplate = "";
         }
-        url += basePath + uriTemplate + "?coapMethod=" + restrict;
+        url += basePath + uriTemplate + "?coapMethod=" + verb.toUpperCase(Locale.US);
         if (!query.isEmpty()) {
             url += "&" + query;
         }

components/camel-coap/src/test/java/org/apache/camel/coap/CoAPCORSTest.java

@@ -0,0 +1,57 @@
+/**
+ * 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.camel.coap;
+
+import org.apache.camel.RoutesBuilder;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.test.AvailablePortFinder;
+import org.apache.camel.test.junit4.CamelTestSupport;
+import org.eclipse.californium.core.CoapClient;
+import org.eclipse.californium.core.CoapResponse;
+import org.eclipse.californium.core.network.config.NetworkConfig;
+import org.junit.Test;
+
+/**
+ * https://issues.apache.org/jira/browse/CAMEL-10985
+ *
+ * CORS configuration is ignored and REST endpoints function as per normal
+ */
+public class CoAPCORSTest extends CamelTestSupport {
+    private static final String COAP_RESPONSE = "{ \"foo\": \"bar\" }";
+    private static final int COAP_PORT = AvailablePortFinder.getNextAvailable();
+
+    @Test
+    public void testEnableCors() throws Exception {
+        NetworkConfig.createStandardWithoutFile();
+
+        CoapClient client = new CoapClient("coap://localhost:" + COAP_PORT + "/rest");
+        CoapResponse coapResponse = client.get();
+        assertEquals(COAP_RESPONSE, coapResponse.getResponseText());
+    }
+
+    @Override
+    protected RoutesBuilder createRouteBuilder() throws Exception {
+        return new RouteBuilder() {
+            @Override
+            public void configure() throws Exception {
+                restConfiguration().component("coap").port(COAP_PORT).enableCORS(true);
+
+                rest().get("/rest").route().setBody(constant(COAP_RESPONSE));
+            }
+        };
+    }
+}