oscerd commented on code in PR #25315:
URL: https://github.com/apache/camel/pull/25315#discussion_r3710073830
##########
core/camel-core-processor/src/main/java/org/apache/camel/processor/SendDynamicProcessor.java:
##########
@@ -494,4 +507,24 @@ public boolean isAutoStartupComponents() {
public void setAutoStartupComponents(boolean autoStartupComponents) {
this.autoStartupComponents = autoStartupComponents;
}
+
+ public String getAllowedSchemes() {
+ return allowedSchemes;
+ }
+
+ public void setAllowedSchemes(String allowedSchemes) {
+ this.allowedSchemes = allowedSchemes;
+ }
+
+ private boolean isSchemeAllowed(String scheme) {
+ if (allowedSchemes == null) {
+ return true;
+ }
+ for (String allowed : allowedSchemes.split(",")) {
+ if (allowed.trim().equals(scheme)) {
Review Comment:
Done in 92389a8 — `setAllowedSchemes` now pre-parses into a `HashSet` once,
and the per-exchange check is a single `Set.contains(scheme)` with no
allocation on the hot path. Thanks!
_Claude Code on behalf of Andrea Cosentino_
##########
core/camel-core/src/test/java/org/apache/camel/processor/ToDynamicAllowedSchemesTest.java:
##########
@@ -0,0 +1,61 @@
+/*
+ * 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.processor;
+
+import org.apache.camel.CamelExecutionException;
+import org.apache.camel.ContextTestSupport;
+import org.apache.camel.ResolveEndpointFailedException;
+import org.apache.camel.builder.RouteBuilder;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+/**
+ * The optional {@code allowedSchemes} allow-list on {@code toD} restricts
which component schemes a dynamic recipient
+ * may resolve to. A recipient whose scheme is not in the list is rejected,
independently of
+ * {@code ignoreInvalidEndpoint}. See CAMEL-24298.
+ */
+class ToDynamicAllowedSchemesTest extends ContextTestSupport {
+
+ @Test
+ void allowedSchemeIsSent() throws Exception {
+ getMockEndpoint("mock:allowed").expectedMessageCount(1);
+
+ template.sendBodyAndHeader("direct:start", "Hello", "target",
"mock:allowed");
+
+ assertMockEndpointsSatisfied();
+ }
+
+ @Test
+ void disallowedSchemeIsRejected() {
+ assertThatThrownBy(() -> template.sendBodyAndHeader("direct:start",
"Hello", "target", "seda:blocked"))
+ .isInstanceOf(CamelExecutionException.class)
+ .cause()
+ .isInstanceOf(ResolveEndpointFailedException.class)
+ .hasMessageContaining("not in the allowed schemes");
+ }
+
+ @Override
+ protected RouteBuilder createRouteBuilder() {
+ return new RouteBuilder() {
+ @Override
+ public void configure() {
+
from("direct:start").toD().allowedSchemes("mock").uri("${header.target}");
+ }
+ };
+ }
+}
Review Comment:
Added `multipleAllowedSchemesHonored` (92389a8): it configures
`allowedSchemes("mock,seda")` and verifies both are honored, while a scheme
outside the list (`log:`) is rejected.
_Claude Code on behalf of Andrea Cosentino_
##########
core/camel-core/src/test/java/org/apache/camel/processor/ToDynamicAllowedSchemesTest.java:
##########
@@ -0,0 +1,61 @@
+/*
+ * 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.processor;
+
+import org.apache.camel.CamelExecutionException;
+import org.apache.camel.ContextTestSupport;
+import org.apache.camel.ResolveEndpointFailedException;
+import org.apache.camel.builder.RouteBuilder;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
+
+/**
+ * The optional {@code allowedSchemes} allow-list on {@code toD} restricts
which component schemes a dynamic recipient
+ * may resolve to. A recipient whose scheme is not in the list is rejected,
independently of
+ * {@code ignoreInvalidEndpoint}. See CAMEL-24298.
+ */
+class ToDynamicAllowedSchemesTest extends ContextTestSupport {
+
+ @Test
+ void allowedSchemeIsSent() throws Exception {
+ getMockEndpoint("mock:allowed").expectedMessageCount(1);
+
+ template.sendBodyAndHeader("direct:start", "Hello", "target",
"mock:allowed");
+
+ assertMockEndpointsSatisfied();
+ }
+
+ @Test
+ void disallowedSchemeIsRejected() {
+ assertThatThrownBy(() -> template.sendBodyAndHeader("direct:start",
"Hello", "target", "seda:blocked"))
+ .isInstanceOf(CamelExecutionException.class)
+ .cause()
+ .isInstanceOf(ResolveEndpointFailedException.class)
+ .hasMessageContaining("not in the allowed schemes");
+ }
+
+ @Override
+ protected RouteBuilder createRouteBuilder() {
+ return new RouteBuilder() {
+ @Override
+ public void configure() {
+
from("direct:start").toD().allowedSchemes("mock").uri("${header.target}");
+ }
+ };
Review Comment:
Good catch — added `disallowedSchemeRejectedEvenWithIgnoreInvalidEndpoint`
(92389a8): a route with `ignoreInvalidEndpoint(true)` still hard-fails on a
disallowed scheme, since the allow-list check sets the exception directly (and
returns) instead of throwing, so it bypasses the `ignoreInvalidEndpoint`
handling.
_Claude Code on behalf of Andrea Cosentino_
##########
core/camel-core-engine/src/main/docs/modules/eips/pages/toD-eip.adoc:
##########
@@ -417,3 +417,30 @@ during startup if `toD` was optimized, or if there was a
failure loading the opt
----
Detected SendDynamicAware component: http optimising toD:
http:myloginserver:8080/login?userid=${header.userName}
----
+
+== Restricting the allowed component schemes
+
+Because `toD` computes its endpoint uri at runtime, a route that interpolates
message content into the uri
+(for example `toD("${header.target}")`) can end up resolving to any component
on the classpath. In low-code or
+Kamelet-style deployments you may want to constrain this to a fixed set of
components. The optional `allowedSchemes`
+option takes a comma-separated allow-list of component schemes; a resolved
recipient whose scheme is not in the list
+is rejected (independently of `ignoreInvalidEndpoint`). By default the option
is unset and any scheme is allowed.
+
+[source,java]
+----
+from("direct:start")
+ // only http and https recipients are permitted
+ .toD().allowedSchemes("http,https").uri("${header.target}");
+----
+
+And in XML:
+
+[source,xml]
+----
+<route>
+ <from uri="direct:start"/>
+ <toD uri="${header.target}" allowedSchemes="http,https"/>
+</route>
+----
Review Comment:
Added a YAML DSL example alongside the Java and XML ones (92389a8).
_Claude Code on behalf of Andrea Cosentino_
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