diff --git a/.main.go b/.main.go new file mode 100644 index 0000000..f21d445 --- /dev/null +++ b/.main.go @@ -0,0 +1,279 @@ +package main + +import ( + "encoding/json" + "fmt" + "io" + "log" + "net/http" + "regexp" + "strconv" + "strings" + + "ghproxy/config" + "ghproxy/logger" + + "github.com/gin-gonic/gin" + "github.com/imroc/req/v3" +) + +var cfg *config.Config +var logw = logger.Logw +var router *gin.Engine + +var ( + exps = []*regexp.Regexp{ + regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:releases|archive)/.*`), + regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:blob|raw)/.*`), + regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:info|git-).*`), + regexp.MustCompile(`^(?:https?://)?raw\.github(?:usercontent|)\.com/([^/]+)/([^/]+)/.+?/.+`), + regexp.MustCompile(`^(?:https?://)?gist\.github\.com/([^/]+)/.+?/.+`), + } +) + +func loadConfig() { + var err error + // 初始化配置 + cfg, err = config.LoadConfig("/data/ghproxy/config/config.yaml") + if err != nil { + log.Fatalf("Failed to load config: %v", err) + } + fmt.Printf("Loaded config: %v\n", cfg) +} + +func setupLogger() { + // 初始化日志模块 + var err error + err = logger.Init(cfg.LogFilePath) // 传递日志文件路径 + if err != nil { + log.Fatalf("Failed to initialize logger: %v", err) + } + logw("Logger initialized") + logw("Init Completed") +} + +func init() { + loadConfig() + setupLogger() + + // 设置 Gin 模式 + gin.SetMode(gin.ReleaseMode) + + // 初始化路由 + router = gin.Default() + + // 定义路由 + router.GET("/", func(c *gin.Context) { + c.Redirect(http.StatusMovedPermanently, "https://ghproxy0rtt.1888866.xyz/") + }) + + router.GET("/api", api) + + // 健康检查 + router.GET("/api/healthcheck", func(c *gin.Context) { + c.String(http.StatusOK, "OK") + }) + + // 未匹配路由处理 + router.NoRoute(noRouteHandler(cfg)) +} + +func main() { + // 启动服务器 + err := router.Run(fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)) + if err != nil { + log.Fatalf("Error starting server: %v\n", err) + } + + fmt.Println("Program finished") +} + +func api(c *gin.Context) { + // 设置响应头 + c.Writer.Header().Set("Content-Type", "application/json") + json.NewEncoder(c.Writer).Encode(map[string]interface{}{ + "MaxResponseBodySize": cfg.SizeLimit, + }) +} + +func AuthHandler(c *gin.Context) bool { + // 如果身份验证未启用，直接返回 true + if !cfg.Auth { + logw("auth PASS") + return true + } + + // 获取 auth_token 参数 + authToken := c.Query("auth_token") + logw("auth_token: ", authToken) + + // 验证 token + isValid := authToken == cfg.AuthToken + if !isValid { + logw("auth FAIL") + } + + return isValid +} + +func noRouteHandler(config *config.Config) gin.HandlerFunc { + return func(c *gin.Context) { + rawPath := strings.TrimPrefix(c.Request.URL.RequestURI(), "/") + re := regexp.MustCompile(`^(http:|https:)?/?/?(.*)`) + matches := re.FindStringSubmatch(rawPath) + + rawPath = "https://" + matches[2] + + matches = checkURL(rawPath) + if matches == nil { + c.String(http.StatusForbidden, "Invalid input.") + return + } + + if exps[1].MatchString(rawPath) { + rawPath = strings.Replace(rawPath, "/blob/", "/raw/", 1) + } + + if !AuthHandler(c) { + c.AbortWithStatusJSON(401, gin.H{"error": "Unauthorized"}) + logw("Unauthorized request: %s", rawPath) + return + } + + // 日志记录 + logw("Request: %s %s", c.Request.Method, rawPath) + logw("Matches: %v", matches) + + // 代理请求 + switch { + case exps[0].MatchString(rawPath), exps[1].MatchString(rawPath), exps[3].MatchString(rawPath), exps[4].MatchString(rawPath): + logw("%s Matched - USE proxy-chrome", rawPath) + proxyRequest(c, rawPath, config, "chrome") + case exps[2].MatchString(rawPath): + logw("%s Matched - USE proxy-git", rawPath) + proxyRequest(c, rawPath, config, "git") + default: + c.String(http.StatusForbidden, "Invalid input.") + return + } + } +} + +func proxyRequest(c *gin.Context, u string, config *config.Config, mode string) { + method := c.Request.Method + logw("%s Method: %s", u, method) + + client := req.C() + + switch mode { + case "chrome": + client.SetUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36"). + SetTLSFingerprintChrome(). + ImpersonateChrome() + case "git": + client.SetUserAgent("git/2.33.1") + } + + // 读取请求体 + body, err := io.ReadAll(c.Request.Body) + if err != nil { + handleError(c, fmt.Sprintf("Failed to read request body: %v", err)) + return + } + defer c.Request.Body.Close() + + // 创建新的请求 + req := client.R().SetBody(body) + + // 复制请求头 + for key, values := range c.Request.Header { + for _, value := range values { + req.SetHeader(key, value) + } + } + + // 发送请求并处理响应 + resp, err := sendRequest(req, method, u) + if err != nil { + handleError(c, fmt.Sprintf("Failed to send request: %v", err)) + return + } + defer resp.Body.Close() + + // 检查响应内容长度并处理重定向 + if err := handleResponseSize(resp, config, c); err != nil { + logw("Error handling response size: %v", err) + return + } + + copyResponseHeaders(resp, c, config) + c.Status(resp.StatusCode) + if _, err := io.Copy(c.Writer, resp.Body); err != nil { + logw("Failed to copy response body: %v", err) + } +} + +func sendRequest(req *req.Request, method, url string) (*req.Response, error) { + switch method { + case "GET": + return req.Get(url) + case "POST": + return req.Post(url) + case "PUT": + return req.Put(url) + case "DELETE": + return req.Delete(url) + default: + return nil, fmt.Errorf("unsupported method: %s", method) + } +} + +func handleResponseSize(resp *req.Response, config *config.Config, c *gin.Context) error { + contentLength := resp.Header.Get("Content-Length") + if contentLength != "" { + size, err := strconv.Atoi(contentLength) + if err == nil && size > config.SizeLimit { + finalURL := resp.Request.URL.String() + c.Redirect(http.StatusMovedPermanently, finalURL) + logw("Redirecting to %s due to size limit (%d bytes)", finalURL, size) + return fmt.Errorf("response size exceeds limit") + } + } + return nil +} + +func copyResponseHeaders(resp *req.Response, c *gin.Context, config *config.Config) { + headersToRemove := []string{"Content-Security-Policy", "Referrer-Policy", "Strict-Transport-Security"} + + for _, header := range headersToRemove { + resp.Header.Del(header) + } + + for key, values := range resp.Header { + for _, value := range values { + c.Header(key, value) + } + } + + if config.CORSOrigin { + c.Header("Access-Control-Allow-Origin", "*") + } else { + c.Header("Access-Control-Allow-Origin", "") + } +} + +func handleError(c *gin.Context, message string) { + c.String(http.StatusInternalServerError, fmt.Sprintf("server error %v", message)) + logw(message) +} + +func checkURL(u string) []string { + for _, exp := range exps { + if matches := exp.FindStringSubmatch(u); matches != nil { + logw("URL matched: %s, Matches: %v", u, matches[1:]) + return matches[1:] + } + } + logw("Invalid URL: %s", u) + return nil +} diff --git a/main.go b/main.go index f21d445..933f07f 100644 --- a/main.go +++ b/main.go @@ -3,18 +3,15 @@ package main import ( "encoding/json" "fmt" - "io" "log" "net/http" "regexp" - "strconv" - "strings" "ghproxy/config" "ghproxy/logger" + "ghproxy/proxy" "github.com/gin-gonic/gin" - "github.com/imroc/req/v3" ) var cfg *config.Config @@ -75,7 +72,9 @@ func init() { }) // 未匹配路由处理 - router.NoRoute(noRouteHandler(cfg)) + router.NoRoute(func(c *gin.Context) { + proxy.NoRouteHandler(cfg)(c) + }) } func main() { @@ -95,185 +94,3 @@ func api(c *gin.Context) { "MaxResponseBodySize": cfg.SizeLimit, }) } - -func AuthHandler(c *gin.Context) bool { - // 如果身份验证未启用，直接返回 true - if !cfg.Auth { - logw("auth PASS") - return true - } - - // 获取 auth_token 参数 - authToken := c.Query("auth_token") - logw("auth_token: ", authToken) - - // 验证 token - isValid := authToken == cfg.AuthToken - if !isValid { - logw("auth FAIL") - } - - return isValid -} - -func noRouteHandler(config *config.Config) gin.HandlerFunc { - return func(c *gin.Context) { - rawPath := strings.TrimPrefix(c.Request.URL.RequestURI(), "/") - re := regexp.MustCompile(`^(http:|https:)?/?/?(.*)`) - matches := re.FindStringSubmatch(rawPath) - - rawPath = "https://" + matches[2] - - matches = checkURL(rawPath) - if matches == nil { - c.String(http.StatusForbidden, "Invalid input.") - return - } - - if exps[1].MatchString(rawPath) { - rawPath = strings.Replace(rawPath, "/blob/", "/raw/", 1) - } - - if !AuthHandler(c) { - c.AbortWithStatusJSON(401, gin.H{"error": "Unauthorized"}) - logw("Unauthorized request: %s", rawPath) - return - } - - // 日志记录 - logw("Request: %s %s", c.Request.Method, rawPath) - logw("Matches: %v", matches) - - // 代理请求 - switch { - case exps[0].MatchString(rawPath), exps[1].MatchString(rawPath), exps[3].MatchString(rawPath), exps[4].MatchString(rawPath): - logw("%s Matched - USE proxy-chrome", rawPath) - proxyRequest(c, rawPath, config, "chrome") - case exps[2].MatchString(rawPath): - logw("%s Matched - USE proxy-git", rawPath) - proxyRequest(c, rawPath, config, "git") - default: - c.String(http.StatusForbidden, "Invalid input.") - return - } - } -} - -func proxyRequest(c *gin.Context, u string, config *config.Config, mode string) { - method := c.Request.Method - logw("%s Method: %s", u, method) - - client := req.C() - - switch mode { - case "chrome": - client.SetUserAgent("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36"). - SetTLSFingerprintChrome(). - ImpersonateChrome() - case "git": - client.SetUserAgent("git/2.33.1") - } - - // 读取请求体 - body, err := io.ReadAll(c.Request.Body) - if err != nil { - handleError(c, fmt.Sprintf("Failed to read request body: %v", err)) - return - } - defer c.Request.Body.Close() - - // 创建新的请求 - req := client.R().SetBody(body) - - // 复制请求头 - for key, values := range c.Request.Header { - for _, value := range values { - req.SetHeader(key, value) - } - } - - // 发送请求并处理响应 - resp, err := sendRequest(req, method, u) - if err != nil { - handleError(c, fmt.Sprintf("Failed to send request: %v", err)) - return - } - defer resp.Body.Close() - - // 检查响应内容长度并处理重定向 - if err := handleResponseSize(resp, config, c); err != nil { - logw("Error handling response size: %v", err) - return - } - - copyResponseHeaders(resp, c, config) - c.Status(resp.StatusCode) - if _, err := io.Copy(c.Writer, resp.Body); err != nil { - logw("Failed to copy response body: %v", err) - } -} - -func sendRequest(req *req.Request, method, url string) (*req.Response, error) { - switch method { - case "GET": - return req.Get(url) - case "POST": - return req.Post(url) - case "PUT": - return req.Put(url) - case "DELETE": - return req.Delete(url) - default: - return nil, fmt.Errorf("unsupported method: %s", method) - } -} - -func handleResponseSize(resp *req.Response, config *config.Config, c *gin.Context) error { - contentLength := resp.Header.Get("Content-Length") - if contentLength != "" { - size, err := strconv.Atoi(contentLength) - if err == nil && size > config.SizeLimit { - finalURL := resp.Request.URL.String() - c.Redirect(http.StatusMovedPermanently, finalURL) - logw("Redirecting to %s due to size limit (%d bytes)", finalURL, size) - return fmt.Errorf("response size exceeds limit") - } - } - return nil -} - -func copyResponseHeaders(resp *req.Response, c *gin.Context, config *config.Config) { - headersToRemove := []string{"Content-Security-Policy", "Referrer-Policy", "Strict-Transport-Security"} - - for _, header := range headersToRemove { - resp.Header.Del(header) - } - - for key, values := range resp.Header { - for _, value := range values { - c.Header(key, value) - } - } - - if config.CORSOrigin { - c.Header("Access-Control-Allow-Origin", "*") - } else { - c.Header("Access-Control-Allow-Origin", "") - } -} - -func handleError(c *gin.Context, message string) { - c.String(http.StatusInternalServerError, fmt.Sprintf("server error %v", message)) - logw(message) -} - -func checkURL(u string) []string { - for _, exp := range exps { - if matches := exp.FindStringSubmatch(u); matches != nil { - logw("URL matched: %s, Matches: %v", u, matches[1:]) - return matches[1:] - } - } - logw("Invalid URL: %s", u) - return nil -} diff --git a/proxy/.proxy.go b/proxy/proxy.go similarity index 99% rename from proxy/.proxy.go rename to proxy/proxy.go index 162dc99..fd46557 100644 --- a/proxy/.proxy.go +++ b/proxy/proxy.go @@ -18,6 +18,7 @@ import ( ) var logw = logger.Logw +var cfg *config.Config var exps = []*regexp.Regexp{ regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:releases|archive)/.*`),