c6b3de1199
## 变更内容
### CI/CD
- 添加 GitHub Actions 工作流（test + golangci-lint）
- 添加 golangci-lint 配置，启用 errcheck/govet/staticcheck/unused/depguard
- 通过 depguard 强制 service 层不能直接导入 repository
### 错误处理修复
- 修复 CSV 写入、SSE 流式输出、随机数生成等未处理的错误
- GenerateRedeemCode() 现在返回 error
### 资源泄露修复
- 统一使用 defer func() { _ = xxx.Close() }() 模式
### 代码清理
- 移除未使用的常量
- 简化 nil map 检查
- 统一代码格式
105 lines
2.5 KiB
Go
105 lines
2.5 KiB
Go
package repository
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"net"
|
|
"net/http"
|
|
"net/url"
|
|
"time"
|
|
|
|
"sub2api/internal/service"
|
|
|
|
"golang.org/x/net/proxy"
|
|
)
|
|
|
|
type proxyProbeService struct{}
|
|
|
|
func NewProxyExitInfoProber() service.ProxyExitInfoProber {
|
|
return &proxyProbeService{}
|
|
}
|
|
|
|
func (s *proxyProbeService) ProbeProxy(ctx context.Context, proxyURL string) (*service.ProxyExitInfo, int64, error) {
|
|
transport, err := createProxyTransport(proxyURL)
|
|
if err != nil {
|
|
return nil, 0, fmt.Errorf("failed to create proxy transport: %w", err)
|
|
}
|
|
|
|
client := &http.Client{
|
|
Transport: transport,
|
|
Timeout: 15 * time.Second,
|
|
}
|
|
|
|
startTime := time.Now()
|
|
req, err := http.NewRequestWithContext(ctx, "GET", "https://ipinfo.io/json", nil)
|
|
if err != nil {
|
|
return nil, 0, fmt.Errorf("failed to create request: %w", err)
|
|
}
|
|
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return nil, 0, fmt.Errorf("proxy connection failed: %w", err)
|
|
}
|
|
defer func() { _ = resp.Body.Close() }()
|
|
|
|
latencyMs := time.Since(startTime).Milliseconds()
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
return nil, latencyMs, fmt.Errorf("request failed with status: %d", resp.StatusCode)
|
|
}
|
|
|
|
var ipInfo struct {
|
|
IP string `json:"ip"`
|
|
City string `json:"city"`
|
|
Region string `json:"region"`
|
|
Country string `json:"country"`
|
|
}
|
|
|
|
body, err := io.ReadAll(resp.Body)
|
|
if err != nil {
|
|
return nil, latencyMs, fmt.Errorf("failed to read response: %w", err)
|
|
}
|
|
|
|
if err := json.Unmarshal(body, &ipInfo); err != nil {
|
|
return nil, latencyMs, fmt.Errorf("failed to parse response: %w", err)
|
|
}
|
|
|
|
return &service.ProxyExitInfo{
|
|
IP: ipInfo.IP,
|
|
City: ipInfo.City,
|
|
Region: ipInfo.Region,
|
|
Country: ipInfo.Country,
|
|
}, latencyMs, nil
|
|
}
|
|
|
|
func createProxyTransport(proxyURL string) (*http.Transport, error) {
|
|
parsedURL, err := url.Parse(proxyURL)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("invalid proxy URL: %w", err)
|
|
}
|
|
|
|
transport := &http.Transport{
|
|
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
|
|
}
|
|
|
|
switch parsedURL.Scheme {
|
|
case "http", "https":
|
|
transport.Proxy = http.ProxyURL(parsedURL)
|
|
case "socks5":
|
|
dialer, err := proxy.FromURL(parsedURL, proxy.Direct)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to create socks5 dialer: %w", err)
|
|
}
|
|
transport.DialContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
|
|
return dialer.Dial(network, addr)
|
|
}
|
|
default:
|
|
return nil, fmt.Errorf("unsupported proxy protocol: %s", parsedURL.Scheme)
|
|
}
|
|
|
|
return transport, nil
|
|
}
|