fix: 拆分main函数，分函数方便后续维护，添加前置检测自动切换离线模式

Add license scan report and status

.github/workflows/main.yaml

@@ -46,7 +46,7 @@ jobs:
           if [[ "$GITHUB_REF" == refs/tags/* ]]; then
             VERSION="${GITHUB_REF#refs/tags/v}"
           else
-            VERSION=$(git describe --tags --abbrev=0 2>/dev/null | sed 's/^v//' || echo "0.1.36")
+            VERSION=$(git describe --tags --abbrev=0 2>/dev/null | sed 's/^v//' || echo "0.1.37")
           fi
           echo "Using version: $VERSION"
           FILE="goecs.sh"

.goreleaser.yaml

@@ -6,7 +6,9 @@ builds:
     env:
       - CGO_ENABLED=0
     ldflags:
-      - -s -w -X main.version={{.Version}} -X main.arch={{.Arch}} -checklinkname=0
+      - -s -w -X main.version={{.Version}} -X main.arch={{.Arch}} -checklinkname=0 -extldflags=-static
+    flags:
+      - -trimpath
     goos:
       - linux
       - windows
@@ -34,6 +36,8 @@ builds:
       - CXX=o64-clang++
     ldflags:
       - -s -w -X main.version={{.Version}} -X main.arch={{.Arch}} -checklinkname=0
+    flags:
+      - -trimpath
     goos:
       - darwin
     goarch:
@@ -47,6 +51,8 @@ builds:
       - CXX=oa64-clang++
     ldflags:
       - -s -w -X main.version={{.Version}} -X main.arch={{.Arch}} -checklinkname=0
+    flags:
+      - -trimpath
     goos:
       - darwin
     goarch:
@@ -75,4 +81,4 @@ changelog:
       - Merge pull request
       - Merge branch
       - go mod tidy
-      - New translations
+      - New translations

README.md

@@ -1,6 +1,8 @@
 # ECS
 
-[![release](https://github.com/oneclickvirt/ecs/actions/workflows/main.yaml/badge.svg)](https://github.com/oneclickvirt/ecs/actions/workflows/main.yaml) 
+[![release](https://github.com/oneclickvirt/ecs/actions/workflows/main.yaml/badge.svg)](https://github.com/oneclickvirt/ecs/actions/workflows/main.yaml)
+
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Foneclickvirt%2Fecs.svg?type=shield)](https://app.fossa.com/projects/git%2Bgithub.com%2Foneclickvirt%2Fecs?ref=badge_shield)
 
 [![Hits](https://hits.spiritlhl.net/goecs.svg?action=hit&title=Hits&title_bg=%23555555&count_bg=%230eecf8&edge_flat=false)](https://hits.spiritlhl.net)
 
@@ -137,19 +139,19 @@ Shell 版本：[https://github.com/spiritLHLS/ecs](https://github.com/spiritLHLS
    export noninteractive=true && ./goecs.sh env
    ```
 
-3. **安装 `goecs`**
+3. **安装 `goecs` 本体(仅下载二进制文件无依赖安装)**
 
    ```bash
    ./goecs.sh install
    ```
 
-4. **升级 `goecs`**
+4. **升级 `goecs` 本体**
 
    ```bash
    ./goecs.sh upgrade
    ```
 
-5. **卸载 `goecs`**
+5. **卸载 `goecs` 本体**
 
    ```bash
    ./goecs.sh uninstall
@@ -341,6 +343,7 @@ GOOS=darwin GOARCH=amd64 go build -o goecs_darwin
 | 测试稳定性       | 核心测试组件10年以上未变 | 每个大版本更新测试项，分数不同版本间难以对比(每个版本对标当前最好的CPU) |
 | 测试内容         | 仅测试计算性能 | 覆盖多种性能测试，分数加权计算，但部分测试实际不常用 |
 | 适用场景         | 适合快速测试，仅测试计算性能 | 适合综合全面的测试 |
+| 排行榜         | [sysbench.spiritlhl.net](https://sysbench.spiritlhl.net/) | [browser.geekbench.com](https://browser.geekbench.com/) |
 
 且```goecs```测试使用何种CPU测试方式可使用参数指定，默认只是为了更多用户快速测试的需求
 
@@ -371,7 +374,7 @@ GOOS=darwin GOARCH=amd64 go build -o goecs_darwin
 感谢
 
 <a href="https://h501.io/?from=69" target="_blank">
-  <img src="https://github.com/spiritLHLS/ecs/assets/103393591/dfd47230-2747-4112-be69-b5636b34f07f" alt="h501">
+  <img src="https://github.com/spiritLHLS/ecs/assets/103393591/dfd47230-2747-4112-be69-b5636b34f07f" alt="h501" style="height: 50px;">
 </a>
 
 提供的免费托管支持本开源项目的共享测试结果存储
@@ -379,13 +382,20 @@ GOOS=darwin GOARCH=amd64 go build -o goecs_darwin
 同时感谢以下平台提供编辑和测试支持
 
 <a href="https://www.jetbrains.com/go/" target="_blank">
-  <img src="https://resources.jetbrains.com/storage/products/company/brand/logos/GoLand.png" alt="goland">
+  <img src="https://resources.jetbrains.com/storage/products/company/brand/logos/GoLand.png" alt="goland" style="height: 50px;">
 </a>
 
 <a href="https://community.ibm.com/zsystems/form/l1cc-oss-vm-request/" target="_blank">
-  <img src="https://linuxone.cloud.marist.edu/oss/resources/images/linuxonelogo03.png" alt="ibm">
+  <img src="https://linuxone.cloud.marist.edu/oss/resources/images/linuxonelogo03.png" alt="ibm" style="height: 50px;">
+</a>
+
+<a href="https://console.zmto.com/?affid=1524" target="_blank">
+  <img src="https://console.zmto.com/templates/2019/dist/images/logo_dark.svg" alt="zmto" style="height: 50px;">
 </a>
 
 ## Stargazers over time
 
-[![Stargazers over time](https://starchart.cc/oneclickvirt/ecs.svg?variant=adaptive)](https://www.spiritlhl.net)
+[![Stargazers over time](https://starchart.cc/oneclickvirt/ecs.svg?variant=adaptive)](https://www.spiritlhl.net)
+
+## License
+[![FOSSA Status](https://app.fossa.com/api/projects/git%2Bgithub.com%2Foneclickvirt%2Fecs.svg?type=large)](https://app.fossa.com/projects/git%2Bgithub.com%2Foneclickvirt%2Fecs?ref=badge_large)

README_EN.md

@@ -368,7 +368,7 @@ Thank [he.net](https://he.net) [bgp.tools](https://bgp.tools) [ipinfo.io](https:
 Thank
 
 <a href="https://h501.io/?from=69" target="_blank">
-  <img src="https://github.com/spiritLHLS/ecs/assets/103393591/dfd47230-2747-4112-be69-b5636b34f07f" alt="h501">
+  <img src="https://github.com/spiritLHLS/ecs/assets/103393591/dfd47230-2747-4112-be69-b5636b34f07f" alt="h501" style="height: 50px;">
 </a>
 
 provided free hosting support for this open source project's shared test results storage
@@ -376,11 +376,15 @@ provided free hosting support for this open source project's shared test results
 Thanks also to the following platforms for editorial and testing support
 
 <a href="https://www.jetbrains.com/go/" target="_blank">
-  <img src="https://resources.jetbrains.com/storage/products/company/brand/logos/GoLand.png" alt="goland">
+  <img src="https://resources.jetbrains.com/storage/products/company/brand/logos/GoLand.png" alt="goland" style="height: 50px;">
 </a>
 
 <a href="https://community.ibm.com/zsystems/form/l1cc-oss-vm-request/" target="_blank">
-  <img src="https://linuxone.cloud.marist.edu/oss/resources/images/linuxonelogo03.png" alt="ibm">
+  <img src="https://linuxone.cloud.marist.edu/oss/resources/images/linuxonelogo03.png" alt="ibm" style="height: 50px;">
+</a>
+
+<a href="https://console.zmto.com/?affid=1524" target="_blank">
+  <img src="https://console.zmto.com/templates/2019/dist/images/logo_dark.svg" alt="zmto" style="height: 50px;">
 </a>
 
 ## Stargazers over time

README_NEW_USER.md

@@ -110,6 +110,8 @@ AMD的7950x单核满血性能得分在6500左右，AMD的5950x单核满血性能
 
 有时候多核得分和单核得分一样，证明商家在限制程序并发使用CPU，典型例子腾讯云。
 
+```Sysbench```的基准可见 [CPU Performance Ladder For Sysbench](https://sysbench.spiritlhl.net/) 天梯图，具体得分不分测试的sysbench的版本。
+
 ```GeekBench```的基准可见 [官方网站](https://browser.geekbench.com/processor-benchmarks/) 天梯图，具体得分每个```GeekBench```版本都不一样，注意使用时测试的```GeekBench```版本是什么。
 
 多说一句，```GeekBench```测的很多内容，实际在服务器使用过程中根本用不到，测试仅供参考。当然```Sysbench```非常不全面，但它基于最基础的计算性能可以大致比较CPU的性能。
@@ -279,6 +281,8 @@ AMD's 7950x single-core full performance score is around 6500, AMD's 5950x singl
 
 Sometimes multi-core scores are the same as single-core scores, proving that the vendor is limiting program concurrent use of CPU, a typical example being Tencent Cloud.
 
+Benchmarks for ```Sysbench`` can be found in the [CPU Performance Ladder For Sysbench](https://sysbench.spiritlhl.net/) ladder chart, with specific scores regardless of the version of sysbench tested.
+
 For `GeekBench` baselines, see the [official website](https://browser.geekbench.com/processor-benchmarks/) ladder chart. Specific scores differ for each `GeekBench` version, so note which `GeekBench` version is being used when testing.
 
 As an additional note, many things tested by `GeekBench` are not actually used in server usage processes, so the test is for reference only. Of course, `Sysbench` is very incomplete, but it can roughly compare CPU performance based on the most basic computational performance.
@@ -424,6 +428,8 @@ AMDの7950xシングルコアのフルパフォーマンススコアは約6500
 
 時々、マルチコアスコアとシングルコアスコアが同じ場合があります。これは販売者がプログラムの並列CPU使用を制限していることを示しています。典型的な例はTencent Cloudです。
 
+Sysbenchのベンチマークは[CPU Performance Ladder For Sysbench](https://sysbench.spiritlhl.net/)のラダーチャートで見ることができる。
+
 ```GeekBench```の基準は[公式ウェブサイト](https://browser.geekbench.com/processor-benchmarks/)の階層チャートを参照してください。具体的なスコアは各```GeekBench```バージョンで異なるため、テスト時の```GeekBench```バージョンに注意してください。
 
 補足ですが、```GeekBench```がテストする多くの内容は、サーバー使用過程で実際には必要ないことが多いです。テストは参考程度にしてください。もちろん```Sysbench```は非常に包括的ではありませんが、基本的な計算性能に基づいてCPUのパフォーマンスを大まかに比較できます。

disktest/disktest.go

@@ -36,6 +36,6 @@ func DiskTest(language, testMethod, testPath string, isMultiCheck bool, autoChan
 	if !strings.Contains(res, "\n") && res != "" {
 		res += "\n"
 	}
-	fmt.Printf(res)
+	fmt.Printf("%s", res)
 	//fmt.Println("--------------------------------------------------")
 }

disktest/disktest_test.go

@@ -3,5 +3,5 @@ package disktest
 import "testing"
 
 func TestDiskIoTest(t *testing.T) {
-	DiskTest("zh", "sysbench", "", false)
+	DiskTest("zh", "sysbench", "", false, false)
 }

go.mod

@@ -7,9 +7,9 @@ toolchain go1.24.2
 require (
 	github.com/imroc/req/v3 v3.50.0
 	github.com/oneclickvirt/CommonMediaTests v0.0.4-20250329123841
-	github.com/oneclickvirt/UnlockTests v0.0.26-20250329125926
-	github.com/oneclickvirt/backtrace v0.0.5-20250517095024
-	github.com/oneclickvirt/basics v0.0.12-20250521031609
+	github.com/oneclickvirt/UnlockTests v0.0.27-20250628125053
+	github.com/oneclickvirt/backtrace v0.0.5-20250629024536
+	github.com/oneclickvirt/basics v0.0.13-20250629023612
 	github.com/oneclickvirt/cputest v0.0.10-20250404151448
 	github.com/oneclickvirt/defaultset v0.0.2-20240624082446
 	github.com/oneclickvirt/disktest v0.0.8-20250425015826
@@ -18,7 +18,7 @@ require (
 	github.com/oneclickvirt/nt3 v0.0.5-20250416131047
 	github.com/oneclickvirt/pingtest v0.0.7-20250413051539
 	github.com/oneclickvirt/portchecker v0.0.3-20250329125750
-	github.com/oneclickvirt/security v0.0.4-20250522031128
+	github.com/oneclickvirt/security v0.0.4-20250629033626
 	github.com/oneclickvirt/speedtest v0.0.9-20250521034111
 )
 

go.sum

@@ -99,12 +99,12 @@ github.com/nxtrace/NTrace-core v1.4.0 h1:pDN2BqxIYjedDKCDDOFBcDNOBnavGcx+4wbiG65
 github.com/nxtrace/NTrace-core v1.4.0/go.mod h1:0AWqbqiIJbpbFG6W48vtJ6pWM8PPF+lQ1fi2371y+zA=
 github.com/oneclickvirt/CommonMediaTests v0.0.4-20250329123841 h1:Zef93z9UiZQwRAKnnZYALmpBKvvuVaq34MEsuWwk6nc=
 github.com/oneclickvirt/CommonMediaTests v0.0.4-20250329123841/go.mod h1:DAmFPRjFV5p9fEzUUSml5jJGn2f1NZJQCzTxITHDjc4=
-github.com/oneclickvirt/UnlockTests v0.0.26-20250329125926 h1:H5//xwVjDR02bQ1hLa3G7LnwccsudPMjBVt7WCx2y/U=
-github.com/oneclickvirt/UnlockTests v0.0.26-20250329125926/go.mod h1:yXWIZB6iLS88pEd9m4QJi1GENn+7I91zA72y5ONz2Oc=
-github.com/oneclickvirt/backtrace v0.0.5-20250517095024 h1:j912aga/17znOqMB2VAxWOQYa4GL6YMFBhv+6c7jkvA=
-github.com/oneclickvirt/backtrace v0.0.5-20250517095024/go.mod h1:5AH00bo41hH3d2/JVuCTlBkZUs3AXX4nlKVXb6piZcI=
-github.com/oneclickvirt/basics v0.0.12-20250521031609 h1:3WxHe+jKrZHF81oa8Xk3IgHCRqTC5GDjv8alR0geamU=
-github.com/oneclickvirt/basics v0.0.12-20250521031609/go.mod h1:yN1IEOXN6v/GJqJSA70Pooo6nXBI/6rq72vTY72wJMQ=
+github.com/oneclickvirt/UnlockTests v0.0.27-20250628125053 h1:Ug8kySZR1weRUcsnGOv+f3HAl791AfkA7EWV3JmiMQA=
+github.com/oneclickvirt/UnlockTests v0.0.27-20250628125053/go.mod h1:yXWIZB6iLS88pEd9m4QJi1GENn+7I91zA72y5ONz2Oc=
+github.com/oneclickvirt/backtrace v0.0.5-20250629024536 h1:caHCa0DHmbYWBFN1bqKxpvPnN0wOxDEqJv1VDvDdLWs=
+github.com/oneclickvirt/backtrace v0.0.5-20250629024536/go.mod h1:5AH00bo41hH3d2/JVuCTlBkZUs3AXX4nlKVXb6piZcI=
+github.com/oneclickvirt/basics v0.0.13-20250629023612 h1:cQg+cGBt2NMRrjhJPH+CbevZrwtMU8pIZIY2Lp6zmt4=
+github.com/oneclickvirt/basics v0.0.13-20250629023612/go.mod h1:yN1IEOXN6v/GJqJSA70Pooo6nXBI/6rq72vTY72wJMQ=
 github.com/oneclickvirt/cputest v0.0.10-20250404151448 h1:ovGtCwFXG0qmpyNDRqcNDIiAmhrtemCjIUXTJ1fPH0o=
 github.com/oneclickvirt/cputest v0.0.10-20250404151448/go.mod h1:MmaHN9+XMntI3rLycwj8Ne31fG18IfNoa8N2utDK1CY=
 github.com/oneclickvirt/dd v0.0.1-20250406062523 h1:jegTww4fuoFEqwFozvGJEqUNI/5ew3QJ0XcKZZ/zuTs=
@@ -125,8 +125,8 @@ github.com/oneclickvirt/pingtest v0.0.7-20250413051539 h1:mYOsEmMtwKr40hwM2NimVL
 github.com/oneclickvirt/pingtest v0.0.7-20250413051539/go.mod h1:d3Ntx5m9lMll3a/k3+2B+5emj//vgDh4/NHTxs2qQE8=
 github.com/oneclickvirt/portchecker v0.0.3-20250329125750 h1:TTNL0pnQlRsn046kW59I/9UWRpihttFHWnU7Ixycggk=
 github.com/oneclickvirt/portchecker v0.0.3-20250329125750/go.mod h1:HQxSTrqM8/QFqHMTBZ7S8H9eEO5FkUXU1eb7ZX5Mk+k=
-github.com/oneclickvirt/security v0.0.4-20250522031128 h1:k/zpiES/W0lW6Rumlmo4i7zp2ncimfeOUKadrylde8M=
-github.com/oneclickvirt/security v0.0.4-20250522031128/go.mod h1:hdCr9UFkJ0tQfFP4mIycZehF5v7VfzSQwNn2qkY0bGo=
+github.com/oneclickvirt/security v0.0.4-20250629033626 h1:DEchQ7WKKz4CzQpMlweoqA993BGncvmp1rL1ICNDJ2g=
+github.com/oneclickvirt/security v0.0.4-20250629033626/go.mod h1:/5eVnZLvP7RUjwhoI6d8iIMP7msbkHC5So3ZxM+A7Zg=
 github.com/oneclickvirt/speedtest v0.0.9-20250521034111 h1:yygDk+s5qFhPMDRzdMfyopm1xU512peNqY6WYyvYcfY=
 github.com/oneclickvirt/speedtest v0.0.9-20250521034111/go.mod h1:zd5ZgIGslmtQLQehEfRjyumlvgDHTpCSMchKfKXoASI=
 github.com/onsi/ginkgo/v2 v2.22.1 h1:QW7tbJAUDyVDVOM5dFa7qaybo+CRfR7bemlQUN6Z8aM=

goecs.sh

@@ -143,7 +143,7 @@ goecs_check() {
     os=$(uname -s 2>/dev/null || echo "Unknown")
     arch=$(uname -m 2>/dev/null || echo "Unknown")
     check_china
-    ECS_VERSION=""
+    ECS_VERSION="0.1.37"
     for api in \
         "https://api.github.com/repos/oneclickvirt/ecs/releases/latest" \
         "https://githubapi.spiritlhl.workers.dev/repos/oneclickvirt/ecs/releases/latest" \
@@ -155,8 +155,8 @@ goecs_check() {
         sleep 1
     done
     if [ -z "$ECS_VERSION" ]; then
-        _yellow "Unable to get version info, using default version 0.1.33"
-        ECS_VERSION="0.1.33"
+        _yellow "Unable to get version info, using default version 0.1.37"
+        ECS_VERSION="0.1.37"
     fi
     version_output=""
     for cmd_path in "goecs" "./goecs" "/usr/bin/goecs" "/usr/local/bin/goecs"; do

memorytest/memorytest.go

@@ -31,5 +31,5 @@ func MemoryTest(language, testMethod string) {
 	if !strings.Contains(res, "\n") && res != "" {
 		res += "\n"
 	}
-	fmt.Printf(res)
+	fmt.Printf("%s", res)
 }

unlocktest/media_test.go

@@ -6,5 +6,5 @@ import (
 )
 
 func Test(t *testing.T) {
-	fmt.Printf(MediaTest("zh"))
+	fmt.Printf("%s", MediaTest("zh"))
 }

utils/utils.go

@@ -3,13 +3,11 @@ package utils
 import (
 	"bufio"
 	"bytes"
+	"context"
 	"fmt"
-	"github.com/imroc/req/v3"
-	"github.com/oneclickvirt/UnlockTests/uts"
-	"github.com/oneclickvirt/basics/system"
-	. "github.com/oneclickvirt/defaultset"
-	"github.com/oneclickvirt/security/network"
 	"io"
+	"net"
+	"net/http"
 	"os"
 	"path/filepath"
 	"regexp"
@@ -17,6 +15,12 @@ import (
 	"sync"
 	"time"
 	"unicode/utf8"
+
+	"github.com/imroc/req/v3"
+	"github.com/oneclickvirt/UnlockTests/uts"
+	"github.com/oneclickvirt/basics/system"
+	. "github.com/oneclickvirt/defaultset"
+	"github.com/oneclickvirt/security/network"
 )
 
 // PrintCenteredTitle 根据指定的宽度打印居中标题
@@ -95,14 +99,14 @@ func CheckChina(enableLogger bool) bool {
 }
 
 // BasicsAndSecurityCheck 执行安全检查
-func BasicsAndSecurityCheck(language, nt3CheckType string, securtyCheckStatus bool) (string, string, string) {
+func BasicsAndSecurityCheck(language, nt3CheckType string, securityCheckStatus bool) (string, string, string) {
 	var wgt sync.WaitGroup
 	var ipInfo, securityInfo, systemInfo string
 	var err error
 	wgt.Add(1)
 	go func() {
 		defer wgt.Done()
-		ipInfo, securityInfo, err = network.NetworkCheck("both", securtyCheckStatus, language)
+		ipInfo, securityInfo, err = network.NetworkCheck("both", securityCheckStatus, language)
 		if err != nil {
 			fmt.Println(err.Error())
 		}
@@ -330,3 +334,159 @@ func ProcessAndUpload(output string, filePath string, enableUplaod bool) (string
 	}
 	return "", ""
 }
+
+// ============================= 前置联网能力检测 =============================
+
+var StackType string
+
+type NetCheckResult struct {
+	HasIPv4   bool
+	HasIPv6   bool
+	Connected bool
+	StackType string // "IPv4", "IPv6", "DualStack", "None"
+}
+
+func makeResolver(proto, dnsAddr string) *net.Resolver {
+	return &net.Resolver{
+		PreferGo: true,
+		Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
+			d := net.Dialer{
+				Timeout: 5 * time.Second,
+			}
+			return d.DialContext(ctx, proto, dnsAddr)
+		},
+	}
+}
+
+func CheckPublicAccess(timeout time.Duration) NetCheckResult {
+	if timeout < 2*time.Second {
+		timeout = 2 * time.Second
+	}
+	var wg sync.WaitGroup
+	resultChan := make(chan string, 8)
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+	checks := []struct {
+		Tag  string
+		Addr string
+		Kind string // udp4, udp6, http4, http6
+	}{
+		// UDP DNS
+		{"IPv4", "223.5.5.5:53", "udp4"},              // 阿里 DNS
+		{"IPv4", "8.8.8.8:53", "udp4"},                // Google DNS
+		{"IPv6", "[2400:3200::1]:53", "udp6"},         // 阿里 IPv6 DNS
+		{"IPv6", "[2001:4860:4860::8888]:53", "udp6"}, // Google IPv6 DNS
+		// HTTP HEAD
+		{"IPv4", "https://www.baidu.com", "http4"},     // 百度
+		{"IPv4", "https://1.1.1.1", "http4"},           // Cloudflare
+		{"IPv6", "https://[2400:3200::1]", "http6"},    // 阿里 IPv6
+		{"IPv6", "https://[2606:4700::1111]", "http6"}, // Cloudflare IPv6
+	}
+	for _, check := range checks {
+		wg.Add(1)
+		go func(tag, addr, kind string) {
+			defer wg.Done()
+			defer func() {
+				if r := recover(); r != nil {
+				}
+			}()
+			switch kind {
+			case "udp4", "udp6":
+				dialer := &net.Dialer{
+					Timeout: timeout / 4,
+				}
+				conn, err := dialer.DialContext(ctx, kind, addr)
+				if err == nil && conn != nil {
+					conn.Close()
+					select {
+					case resultChan <- tag:
+					case <-ctx.Done():
+						return
+					}
+				}
+			case "http4", "http6":
+				var resolver *net.Resolver
+				if kind == "http4" {
+					resolver = makeResolver("udp4", "223.5.5.5:53")
+				} else {
+					resolver = makeResolver("udp6", "[2400:3200::1]:53")
+				}
+				dialer := &net.Dialer{
+					Timeout:  timeout / 4,
+					Resolver: resolver,
+				}
+				transport := &http.Transport{
+					DialContext:           dialer.DialContext,
+					MaxIdleConns:          1,
+					MaxIdleConnsPerHost:   1,
+					IdleConnTimeout:       time.Second,
+					TLSHandshakeTimeout:   timeout / 4,
+					ResponseHeaderTimeout: timeout / 4,
+					DisableKeepAlives:     true,
+				}
+				client := &http.Client{
+					Timeout:   timeout / 4,
+					Transport: transport,
+					CheckRedirect: func(req *http.Request, via []*http.Request) error {
+						return http.ErrUseLastResponse
+					},
+				}
+				req, err := http.NewRequestWithContext(ctx, "HEAD", addr, nil)
+				if err != nil {
+					return
+				}
+				resp, err := client.Do(req)
+				if err == nil && resp != nil {
+					if resp.Body != nil {
+						resp.Body.Close()
+					}
+					if resp.StatusCode < 500 {
+						select {
+						case resultChan <- tag:
+						case <-ctx.Done():
+							return
+						}
+					}
+				}
+			}
+		}(check.Tag, check.Addr, check.Kind)
+	}
+	go func() {
+		wg.Wait()
+		close(resultChan)
+	}()
+	hasV4 := false
+	hasV6 := false
+	for {
+		select {
+		case res, ok := <-resultChan:
+			if !ok {
+				goto result
+			}
+			if res == "IPv4" {
+				hasV4 = true
+			}
+			if res == "IPv6" {
+				hasV6 = true
+			}
+		case <-ctx.Done():
+			goto result
+		}
+	}
+result:
+	stack := "None"
+	if hasV4 && hasV6 {
+		stack = "DualStack"
+	} else if hasV4 {
+		stack = "IPv4"
+	} else if hasV6 {
+		stack = "IPv6"
+	}
+	StackType = stack
+	return NetCheckResult{
+		HasIPv4:   hasV4,
+		HasIPv6:   hasV6,
+		Connected: hasV4 || hasV6,
+		StackType: stack,
+	}
+}

utils/utils_test.go

@@ -0,0 +1,17 @@
+package utils
+
+import (
+	"fmt"
+	"testing"
+	"time"
+)
+
+func TestCheckPublicAccess(t *testing.T) {
+	timeout := 3 * time.Second
+	result := CheckPublicAccess(timeout)
+	if result.Connected {
+		fmt.Printf("✅ 本机有公网连接，类型: %s\n", result.StackType)
+	} else {
+		fmt.Println("❌ 本机未检测到公网连接")
+	}
+}