优化gost执行诊断时计入DNS解析时间的问题

.github/workflows/docker-build.yml

@@ -17,6 +17,7 @@ jobs:
     outputs:
       version: ${{ env.VERSION }}
       should_build: ${{ steps.check-tag.outputs.should_build }}
+      should_build_gost: ${{ steps.check-tag.outputs.should_build_gost }}
       tag_exists: ${{ steps.check-tag.outputs.tag_exists }}
     steps:
       - uses: actions/checkout@v3
@@ -27,23 +28,34 @@ jobs:
         run: |
           echo "Current version: ${{ env.VERSION }}"
 
-      - name: Check if tag exists
+      - name: Check if tag exists and detect changes
         id: check-tag
         run: |
           if git rev-parse "${{ env.VERSION }}" >/dev/null 2>&1; then
-            echo "Tag ${{ env.VERSION }} already exists, will only update files"
+            echo "Tag ${{ env.VERSION }} already exists"
-            echo "should_build=false" >> $GITHUB_OUTPUT
             echo "tag_exists=true" >> $GITHUB_OUTPUT
+            echo "should_build=false" >> $GITHUB_OUTPUT
+            
+            # 检查从tag到现在，go-gost目录下的文件是否有变化
+            TAG_COMMIT=$(git rev-list -n 1 "${{ env.VERSION }}")
+            if git diff --quiet $TAG_COMMIT HEAD -- go-gost/; then
+              echo "✅ GOST files unchanged since tag"
+              echo "should_build_gost=false" >> $GITHUB_OUTPUT
+            else
+              echo "🔄 GOST files changed since tag, will rebuild GOST binary"
+              echo "should_build_gost=true" >> $GITHUB_OUTPUT
+            fi
           else
             echo "Tag ${{ env.VERSION }} does not exist, will build all components"
             echo "should_build=true" >> $GITHUB_OUTPUT
+            echo "should_build_gost=true" >> $GITHUB_OUTPUT
             echo "tag_exists=false" >> $GITHUB_OUTPUT
           fi
 
   build-gost:
     name: Build & Compress GOST Binary
     needs: check-version
-    if: needs.check-version.outputs.should_build == 'true'
+    if: needs.check-version.outputs.should_build_gost == 'true'
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -245,10 +257,51 @@ jobs:
           
           echo "✅ 所有文件已上传到 Release ${VERSION}"
 
+  update-release-gost:
+    name: Update GOST Binaries in Release
+    needs: [check-version, build-gost]
+    if: needs.check-version.outputs.should_build == 'false' && needs.check-version.outputs.should_build_gost == 'true'
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Download GOST AMD64 binary
+        uses: actions/download-artifact@v4
+        with:
+          name: gost-binary-amd64
+          path: ./artifacts/amd64
+
+      - name: Download GOST ARM64 binary
+        uses: actions/download-artifact@v4
+        with:
+          name: gost-binary-arm64
+          path: ./artifacts/arm64
+
+      - name: Rename binaries
+        run: |
+          mv ./artifacts/amd64/gost-amd64 ./artifacts/gost-amd64
+          mv ./artifacts/arm64/gost-arm64 ./artifacts/gost-arm64
+
+      - name: Update GOST binaries in Release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          VERSION="${{ needs.check-version.outputs.version }}"
+          
+          echo "🔄 更新 Release ${VERSION} 中的 GOST 二进制文件..."
+          
+          gh release upload "${VERSION}" ./artifacts/gost-amd64 --clobber
+          gh release upload "${VERSION}" ./artifacts/gost-arm64 --clobber
+          
+          echo "✅ GOST 二进制文件更新完成！"
+          echo "ℹ️ Docker 镜像未重新构建"
+
   update-release-files:
     name: Update Release Files Only
     needs: check-version
-    if: needs.check-version.outputs.tag_exists == 'true'
+    if: needs.check-version.outputs.tag_exists == 'true' && needs.check-version.outputs.should_build == 'false' && needs.check-version.outputs.should_build_gost == 'false'
     runs-on: ubuntu-latest
     permissions:
       contents: write

go-gost/x/socket/websocket_reporter.go

@@ -1132,6 +1132,34 @@ func tcpPingHost(ip string, port int, count int, timeoutMs int) (float64, float6
 
 	fmt.Printf("🔍 开始TCP ping测试: %s，次数: %d，超时: %dms\n", target, count, timeoutMs)
 
+	// 如果是域名，先解析一次DNS，避免每次连接都重新解析导致延迟累加
+	var resolvedIPs []string
+	if net.ParseIP(ip) == nil {
+		// 是域名，需要解析
+		fmt.Printf("🔍 检测到域名，正在解析DNS...\n")
+		dnsStart := time.Now()
+		
+		addrs, err := net.LookupHost(ip)
+		dnsDuration := time.Since(dnsStart)
+		
+		if err != nil {
+			return 0, 100.0, fmt.Errorf("DNS解析失败: %v", err)
+		}
+		if len(addrs) == 0 {
+			return 0, 100.0, fmt.Errorf("DNS解析未返回任何IP地址")
+		}
+		
+		resolvedIPs = addrs
+		fmt.Printf("✅ DNS解析完成 (%.2fms)，解析到 %d 个IP: %v\n", 
+			dnsDuration.Seconds()*1000, len(addrs), addrs)
+		
+		// 使用第一个解析到的IP进行测试
+		target = net.JoinHostPort(addrs[0], fmt.Sprintf("%d", port))
+		fmt.Printf("🎯 使用IP地址进行测试: %s\n", target)
+	} else {
+		fmt.Printf("🎯 使用IP地址进行测试: %s\n", target)
+	}
+
 	for i := 0; i < count; i++ {
 		start := time.Now()