Encode role name parameter in the location header uri

The role is encoded to avoid template resolution by the URIBuilder. This fix avoids the exception when creating roles with names containing {patterns}.

Closes #27514

Signed-off-by: graziang <g.graziano94@gmail.com>

services/src/main/java/org/keycloak/services/resources/admin/RoleContainerResource.java

@@ -24,6 +24,7 @@
 import org.eclipse.microprofile.openapi.annotations.tags.Tag;
 import org.jboss.resteasy.reactive.NoCache;
 import jakarta.ws.rs.NotFoundException;
+import org.keycloak.common.util.Encode;
 import org.keycloak.events.admin.OperationType;
 import org.keycloak.events.admin.ResourceType;
 import org.keycloak.models.ClientModel;
@@ -202,7 +203,7 @@ public Response createRole(final RoleRepresentation rep) {
 
             adminEvent.operation(OperationType.CREATE).resourcePath(uriInfo, role.getName()).representation(rep).success();
 
-            return Response.created(uriInfo.getAbsolutePathBuilder().path(role.getName()).build()).build();
+            return Response.created(uriInfo.getAbsolutePathBuilder().path(Encode.encodePathSegmentAsIs(role.getName())).build()).build();
         } catch (ModelDuplicateException e) {
             throw ErrorResponse.exists("Role with name " + rep.getName() + " already exists");
         }

testsuite/integration-arquillian/tests/base/src/test/java/org/keycloak/testsuite/admin/client/ClientRolesTest.java

@@ -110,6 +110,12 @@ public void createRoleWithSameName() {
         rolesRsc.create(role);
     }
 
+    @Test
+    public void createRoleWithNamePattern() {
+        RoleRepresentation role = RoleBuilder.create().name("role-a-{pattern}").build();
+        rolesRsc.create(role);
+    }
+
     @Test
     public void testRemoveRole() {
         RoleRepresentation role2 = makeRole("role2");