fix(接口自动化) 插件步骤，另存为接口定义控制

--bug=1006746 --user=赵勇 【接口自动化】插件步骤，另存为接口定义，报500 https://www.tapd.cn/55049933/s/1048552

backend/src/main/java/io/metersphere/api/service/ApiDefinitionService.java

@@ -299,7 +299,7 @@ public class ApiDefinitionService {
 
     private void checkNameExist(SaveApiDefinitionRequest request) {
         ApiDefinitionExample example = new ApiDefinitionExample();
-        if (request.getProtocol().equals(RequestType.HTTP)) {
+        if (StringUtils.isNotEmpty(request.getProtocol()) && request.getProtocol().equals(RequestType.HTTP)) {
             ApiDefinitionExample.Criteria criteria = example.createCriteria();
             criteria.andMethodEqualTo(request.getMethod()).andStatusNotEqualTo("Trash")
                     .andProtocolEqualTo(request.getProtocol()).andPathEqualTo(request.getPath())

frontend/src/business/components/api/automation/scenario/EditApiScenario.vue

@@ -889,7 +889,11 @@ export default {
     },
     fabClick() {
       if (this.operatingElements && this.operatingElements.length < 1) {
-        this.$info("引用的场景或接口无法添加配置");
+        if(this.selectedTreeNode && this.selectedTreeNode.referenced === 'REF' ||  this.selectedTreeNode.disabled) {
+          this.$warning("引用的场景步骤及子步骤都无法添加其他步骤");
+        }else{
+          this.$warning("当前步骤下不能添加其他步骤");
+        }
       }
     },
     addComponent(type, plugin) {

frontend/src/business/components/api/automation/scenario/Setting.js

@@ -24,6 +24,7 @@ export function STEP() {
     ['MaxSamplerProxy', getDefaultSamplerMenu()],
     ['GenericController', getAll()],
     ['AllSamplerProxy', ["HTTPSamplerProxy", "DubboSampler", "JDBCSampler", "TCPSampler", "Sampler", "AbstractSampler"]],
+    ['DEFINITION', ["HTTPSamplerProxy", "DubboSampler", "JDBCSampler", "TCPSampler"]],
     ['AllCanExecType', ["HTTPSamplerProxy", "DubboSampler", "JDBCSampler", "TCPSampler", "JSR223Processor", "AbstractSampler"]]]);
   return map
 }

frontend/src/business/components/api/automation/scenario/component/StepExtendBtns.vue

@@ -42,7 +42,7 @@ export default {
     }
   },
   mounted() {
-    this.allSamplers = this.filter.get('AllSamplerProxy')
+    this.allSamplers = this.filter.get('DEFINITION');
   },
   methods: {
     handleCommand(cmd) {