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new 66610aea8da CAMEL-20763: camel-support Handle special characters in
REST templates (#14145)
66610aea8da is described below
commit 66610aea8da63fb1977aaf7627ad954f3ef91f9b
Author: David Riseley <6659301+drise...@users.noreply.github.com>
AuthorDate: Wed May 15 11:23:38 2024 +0100
CAMEL-20763: camel-support Handle special characters in REST templates
(#14145)
Ensure that any hypens or underscores in parameters in REST templates
are removed before being parsed into a regular expression
---
.../support/RestConsumerContextPathMatcher.java | 28 ++++++++++++++++++-
.../RestConsumerContextPathMatcherTest.java | 31 ++++++++++++++++++++++
2 files changed, 58 insertions(+), 1 deletion(-)
diff --git
a/core/camel-support/src/main/java/org/apache/camel/support/RestConsumerContextPathMatcher.java
b/core/camel-support/src/main/java/org/apache/camel/support/RestConsumerContextPathMatcher.java
index 100d0980e87..c0a8d0eb0ec 100644
---
a/core/camel-support/src/main/java/org/apache/camel/support/RestConsumerContextPathMatcher.java
+++
b/core/camel-support/src/main/java/org/apache/camel/support/RestConsumerContextPathMatcher.java
@@ -39,6 +39,7 @@ import java.util.stream.Collectors;
*/
public final class RestConsumerContextPathMatcher {
+ private static final Pattern CONSUMER_PATH_PARAMETER_PATTERN =
Pattern.compile("([^{]*)(\\{.*?\\})([^{]*)");
private static final Map<String, Pattern> PATH_PATTERN = new
ConcurrentHashMap<>();
private RestConsumerContextPathMatcher() {
@@ -242,9 +243,14 @@ public final class RestConsumerContextPathMatcher {
* @param consumerPath a consumer path
*/
public static void register(String consumerPath) {
+ // Remove hyphens and underscores from parameter names
+ // as these are not supported in regex named group names
+ String regex = prepareConsumerPathRegex(consumerPath);
+
// Convert URI template to a regex pattern
- String regex = consumerPath
+ regex = regex
.replace("/", "\\/")
+ .replace("-", "\\-")
.replace("{", "(?<")
.replace("}", ">[^\\/]+)");
@@ -394,4 +400,24 @@ public final class RestConsumerContextPathMatcher {
return matcher.matches();
}
+ /**
+ * Removes any hyphens or underscores from parameter names to create valid
java regex named group names
+ *
+ * @param consumerPath
+ * @return
+ */
+ private static String prepareConsumerPathRegex(String consumerPath) {
+ Matcher m = CONSUMER_PATH_PARAMETER_PATTERN.matcher(consumerPath);
+ StringBuilder regexBuilder = new StringBuilder();
+ while (m.find()) {
+ m.appendReplacement(regexBuilder, m.group(1) +
m.group(2).replaceAll("[\\_\\-]", "") + m.group(3));
+ }
+ // No matches so return the original path
+ if (regexBuilder.isEmpty()) {
+ return consumerPath;
+ } else {
+ return regexBuilder.toString();
+ }
+ }
+
}
diff --git
a/core/camel-support/src/test/java/org/apache/camel/support/RestConsumerContextPathMatcherTest.java
b/core/camel-support/src/test/java/org/apache/camel/support/RestConsumerContextPathMatcherTest.java
index 8f872fb194f..069a177eebc 100644
---
a/core/camel-support/src/test/java/org/apache/camel/support/RestConsumerContextPathMatcherTest.java
+++
b/core/camel-support/src/test/java/org/apache/camel/support/RestConsumerContextPathMatcherTest.java
@@ -18,9 +18,14 @@ package org.apache.camel.support;
import java.util.ArrayList;
import java.util.List;
+import java.util.stream.Stream;
import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.MethodSource;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
@@ -81,6 +86,32 @@ public class RestConsumerContextPathMatcherTest {
assertEquals(path.getConsumerPath(), "/camel/a/b/{c}");
}
+ @ParameterizedTest
+ @MethodSource
+ public void testRestConsumerContextPathMatcherTemplateParseSuccess(String
consumerPath, String requestPath) {
+
+ assertDoesNotThrow(() ->
RestConsumerContextPathMatcher.register(consumerPath));
+
+ List<RestConsumerContextPathMatcher.ConsumerPath<MockConsumerPath>>
consumerPaths = new ArrayList<>();
+ consumerPaths.add(new MockConsumerPath("GET", consumerPath));
+
+ RestConsumerContextPathMatcher.ConsumerPath<?> path =
RestConsumerContextPathMatcher.matchBestPath("GET",
+ requestPath, consumerPaths);
+
+ assertEquals(consumerPath, path.getConsumerPath());
+ }
+
+ private static Stream<Arguments>
testRestConsumerContextPathMatcherTemplateParseSuccess() {
+ return Stream.of(
+ Arguments.of("/camel/{myparamname1}", "/camel/param"),
+ Arguments.of("/camel/{myParamName1}", "/camel/param"),
+ Arguments.of("/camel/{my_param_name1}", "/camel/param"),
+ Arguments.of("/camel/{my-param-name1}", "/camel/param"),
+ Arguments.of("/camel/{my-param_name1}", "/camel/param"),
+
Arguments.of("/camel/{my-param_name1}/path-ab/{my-param_name2}",
"/camel/param1/path-ab/param2"),
+
Arguments.of("/camel/{my-param_name1}/path-ab/{my-param_name2}/*",
"/camel/param1/path-ab/param2/something"));
+ }
+
@Test
public void testRestConsumerContextPathMatcherWithWildcard() {
List<RestConsumerContextPathMatcher.ConsumerPath<MockConsumerPath>>
consumerPaths = new ArrayList<>();
