重构优化
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starry
246
src/main.go
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246
src/main.go
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package main
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import (
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"fmt"
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"github.com/gin-gonic/gin"
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"io"
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"net/http"
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"regexp"
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"strconv"
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"strings"
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)
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var (
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exps = []*regexp.Regexp{
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regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:releases|archive)/.*$`),
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regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:blob|raw)/.*$`),
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regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:info|git-).*$`),
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regexp.MustCompile(`^(?:https?://)?raw\.github(?:usercontent|)\.com/([^/]+)/([^/]+)/.+?/.+$`),
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regexp.MustCompile(`^(?:https?://)?gist\.github(?:usercontent|)\.com/([^/]+)/.+?/.+`),
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regexp.MustCompile(`^(?:https?://)?api\.github\.com/repos/([^/]+)/([^/]+)/.*`),
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regexp.MustCompile(`^(?:https?://)?huggingface\.co(?:/spaces)?/([^/]+)/(.+)$`),
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regexp.MustCompile(`^(?:https?://)?cdn-lfs\.hf\.co(?:/spaces)?/([^/]+)/([^/]+)(?:/(.*))?$`),
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regexp.MustCompile(`^(?:https?://)?download\.docker\.com/([^/]+)/.*\.(tgz|zip)$`),
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regexp.MustCompile(`^(?:https?://)?(github|opengraph)\.githubassets\.com/([^/]+)/.+?$`),
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}
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globalLimiter *IPRateLimiter
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)
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func main() {
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// 加载配置
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if err := LoadConfig(); err != nil {
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fmt.Printf("配置加载失败: %v\n", err)
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return
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}
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// 初始化HTTP客户端
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initHTTPClients()
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// 初始化限流器
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initLimiter()
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// 初始化Docker流式代理
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initDockerProxy()
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gin.SetMode(gin.ReleaseMode)
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router := gin.Default()
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// 初始化skopeo路由（静态文件和API路由）
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initSkopeoRoutes(router)
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// 单独处理根路径请求
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router.GET("/", func(c *gin.Context) {
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c.File("./public/index.html")
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})
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// 指定具体的静态文件路径
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router.Static("/public", "./public")
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router.GET("/skopeo.html", func(c *gin.Context) {
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c.File("./public/skopeo.html")
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})
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router.GET("/search.html", func(c *gin.Context) {
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c.File("./public/search.html")
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})
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router.GET("/favicon.ico", func(c *gin.Context) {
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c.File("./public/favicon.ico")
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})
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// 注册dockerhub搜索路由
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RegisterSearchRoute(router)
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// 注册Docker认证路由（/token*）
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router.Any("/token", RateLimitMiddleware(globalLimiter), ProxyDockerAuthGin)
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router.Any("/token/*path", RateLimitMiddleware(globalLimiter), ProxyDockerAuthGin)
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// 注册Docker Registry代理路由
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router.Any("/v2/*path", RateLimitMiddleware(globalLimiter), ProxyDockerRegistryGin)
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// 注册NoRoute处理器，应用限流中间件
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router.NoRoute(RateLimitMiddleware(globalLimiter), handler)
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cfg := GetConfig()
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fmt.Printf("启动成功，项目地址：https://github.com/sky22333/hubproxy \n")
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err := router.Run(fmt.Sprintf("%s:%d", cfg.Server.Host, cfg.Server.Port))
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if err != nil {
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fmt.Printf("启动服务失败: %v\n", err)
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}
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}
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func handler(c *gin.Context) {
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rawPath := strings.TrimPrefix(c.Request.URL.RequestURI(), "/")
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for strings.HasPrefix(rawPath, "/") {
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rawPath = strings.TrimPrefix(rawPath, "/")
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}
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if !strings.HasPrefix(rawPath, "http") {
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c.String(http.StatusForbidden, "无效输入")
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return
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}
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matches := checkURL(rawPath)
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if matches != nil {
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// GitHub仓库访问控制检查
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if allowed, reason := GlobalAccessController.CheckGitHubAccess(matches); !allowed {
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// 构建仓库名用于日志
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var repoPath string
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if len(matches) >= 2 {
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username := matches[0]
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repoName := strings.TrimSuffix(matches[1], ".git")
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repoPath = username + "/" + repoName
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}
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fmt.Printf("GitHub仓库 %s 访问被拒绝: %s\n", repoPath, reason)
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c.String(http.StatusForbidden, reason)
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return
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}
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} else {
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c.String(http.StatusForbidden, "无效输入")
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return
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}
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if exps[1].MatchString(rawPath) {
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rawPath = strings.Replace(rawPath, "/blob/", "/raw/", 1)
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}
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proxy(c, rawPath)
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}
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func proxy(c *gin.Context, u string) {
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proxyWithRedirect(c, u, 0)
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}
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func proxyWithRedirect(c *gin.Context, u string, redirectCount int) {
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// 限制最大重定向次数，防止无限递归
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const maxRedirects = 20
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if redirectCount > maxRedirects {
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c.String(http.StatusLoopDetected, "重定向次数过多，可能存在循环重定向")
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return
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}
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req, err := http.NewRequest(c.Request.Method, u, c.Request.Body)
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if err != nil {
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c.String(http.StatusInternalServerError, fmt.Sprintf("server error %v", err))
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return
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}
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for key, values := range c.Request.Header {
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for _, value := range values {
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req.Header.Add(key, value)
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}
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}
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req.Header.Del("Host")
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resp, err := GetGlobalHTTPClient().Do(req)
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if err != nil {
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c.String(http.StatusInternalServerError, fmt.Sprintf("server error %v", err))
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return
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}
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defer func() {
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if err := resp.Body.Close(); err != nil {
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fmt.Printf("关闭响应体失败: %v\n", err)
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}
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}()
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// 检查文件大小限制
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cfg := GetConfig()
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if contentLength := resp.Header.Get("Content-Length"); contentLength != "" {
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if size, err := strconv.ParseInt(contentLength, 10, 64); err == nil && size > cfg.Server.FileSize {
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c.String(http.StatusRequestEntityTooLarge,
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fmt.Sprintf("文件过大，限制大小: %d MB", cfg.Server.FileSize/(1024*1024)))
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return
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}
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}
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// 清理安全相关的头
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resp.Header.Del("Content-Security-Policy")
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resp.Header.Del("Referrer-Policy")
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resp.Header.Del("Strict-Transport-Security")
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// 对于需要处理的shell文件，使用chunked传输
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isShellFile := strings.HasSuffix(strings.ToLower(u), ".sh")
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if isShellFile {
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resp.Header.Del("Content-Length")
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resp.Header.Set("Transfer-Encoding", "chunked")
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}
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// 复制其他响应头
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for key, values := range resp.Header {
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for _, value := range values {
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c.Header(key, value)
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}
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}
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if location := resp.Header.Get("Location"); location != "" {
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if checkURL(location) != nil {
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c.Header("Location", "/"+location)
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} else {
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// 递归处理重定向，增加计数防止无限循环
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proxyWithRedirect(c, location, redirectCount+1)
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return
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}
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}
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c.Status(resp.StatusCode)
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// 处理响应体
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if isShellFile {
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// 获取真实域名
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realHost := c.Request.Header.Get("X-Forwarded-Host")
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if realHost == "" {
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realHost = c.Request.Host
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}
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// 如果域名中没有协议前缀，添加https://
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if !strings.HasPrefix(realHost, "http://") && !strings.HasPrefix(realHost, "https://") {
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realHost = "https://" + realHost
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}
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// 使用ProcessGitHubURLs处理.sh文件
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processedBody, _, err := ProcessGitHubURLs(resp.Body, resp.Header.Get("Content-Encoding") == "gzip", realHost, true)
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if err != nil {
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c.String(http.StatusInternalServerError, fmt.Sprintf("处理shell文件时发生错误: %v", err))
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return
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}
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if _, err := io.Copy(c.Writer, processedBody); err != nil {
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c.String(http.StatusInternalServerError, fmt.Sprintf("写入响应时发生错误: %v", err))
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return
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}
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} else {
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// 对于非.sh文件，直接复制响应体
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if _, err := io.Copy(c.Writer, resp.Body); err != nil {
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return
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}
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}
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}
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func checkURL(u string) []string {
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for _, exp := range exps {
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if matches := exp.FindStringSubmatch(u); matches != nil {
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return matches[1:]
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}
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}
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return nil
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}
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