mirror of
https://github.com/WJQSERVER-STUDIO/ghproxy.git
synced 2026-02-03 00:01:10 +08:00
234 lines
8.4 KiB
Go
234 lines
8.4 KiB
Go
package proxy
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import (
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"fmt"
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"ghproxy/auth"
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"ghproxy/config"
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"ghproxy/rate"
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"net/http"
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"regexp"
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"strings"
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"github.com/gin-gonic/gin"
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)
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var re = regexp.MustCompile(`^(http:|https:)?/?/?(.*)`) // 匹配http://或https://开头的路径
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/*
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var exps = []*regexp.Regexp{
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regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:releases|archive)/.*`), // 匹配 GitHub Releases 或 Archive 链接
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regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:blob|raw)/.*`), // 匹配 GitHub Blob 或 Raw 链接
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regexp.MustCompile(`^(?:https?://)?github\.com/([^/]+)/([^/]+)/(?:info|git-).*`), // 匹配 GitHub Info 或 Git 相关链接 (例如 .gitattributes, .gitignore)
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regexp.MustCompile(`^(?:https?://)?raw\.github(?:usercontent|)\.com/([^/]+)/([^/]+)/.+?/.+`), // 匹配 raw.githubusercontent.com 链接
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regexp.MustCompile(`^(?:https?://)?gist\.github(?:usercontent|)\.com/([^/]+)/.+?/.+`), // 匹配 gist.githubusercontent.com 链接
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regexp.MustCompile(`^(?:https?://)?api\.github\.com/repos/([^/]+)/([^/]+)/.*`), // 匹配 api.github.com/repos 链接 (GitHub API)
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}
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*/
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func NoRouteHandler(cfg *config.Config, limiter *rate.RateLimiter, iplimiter *rate.IPRateLimiter, runMode string) gin.HandlerFunc {
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return func(c *gin.Context) {
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// 限制访问频率
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if cfg.RateLimit.Enabled {
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var allowed bool
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switch cfg.RateLimit.RateMethod {
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case "ip":
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allowed = iplimiter.Allow(c.ClientIP())
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case "total":
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allowed = limiter.Allow()
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default:
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logWarning("Invalid RateLimit Method")
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return
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}
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if !allowed {
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c.JSON(http.StatusTooManyRequests, gin.H{"error": "Too Many Requests"})
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logWarning("%s %s %s %s %s 429-TooManyRequests", c.ClientIP(), c.Request.Method, c.Request.URL.RequestURI(), c.Request.Header.Get("User-Agent"), c.Request.Proto)
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return
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}
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}
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//rawPath := strings.TrimPrefix(c.Request.URL.Path, "/") // 去掉前缀/
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rawPath := strings.TrimPrefix(c.Request.URL.RequestURI(), "/") // 去掉前缀/
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matches := re.FindStringSubmatch(rawPath) // 匹配路径
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logInfo("Matches: %v", matches)
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// 匹配路径错误处理
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if len(matches) < 3 {
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errMsg := fmt.Sprintf("%s %s %s %s %s Invalid URL", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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logWarning(errMsg)
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c.String(http.StatusForbidden, "Invalid URL Format. Path: %s", rawPath)
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return
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}
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// 制作url
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rawPath = "https://" + matches[2]
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var (
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user string
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repo string
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matcher string
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)
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// 匹配 "https://github.com"开头的链接
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if strings.HasPrefix(rawPath, "https://github.com") {
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remainingPath := strings.TrimPrefix(rawPath, "https://github.com")
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if strings.HasPrefix(remainingPath, "/") {
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remainingPath = strings.TrimPrefix(remainingPath, "/")
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}
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// 预期格式/user/repo/more...
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// 取出user和repo和最后部分
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parts := strings.Split(remainingPath, "/")
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if len(parts) <= 2 {
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logWarning("%s %s %s %s %s Invalid URL", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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c.String(http.StatusForbidden, "Invalid URL Format. Path: %s", rawPath)
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return
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}
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user = parts[0]
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repo = parts[1]
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// 匹配 "https://github.com"开头的链接
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if len(parts) >= 3 {
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switch parts[2] {
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case "releases", "archive":
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matcher = "releases"
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case "blob", "raw":
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matcher = "blob"
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case "info", "git-upload-pack":
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matcher = "clone"
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default:
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fmt.Println("Invalid URL: Unknown type")
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}
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}
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}
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// 匹配 "https://raw"开头的链接
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if strings.HasPrefix(rawPath, "https://raw") {
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remainingPath := strings.TrimPrefix(rawPath, "https://")
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parts := strings.Split(remainingPath, "/")
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if len(parts) <= 3 {
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logWarning("%s %s %s %s %s Invalid URL", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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c.String(http.StatusForbidden, "Invalid URL Format. Path: %s", rawPath)
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return
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}
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user = parts[1]
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repo = parts[2]
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matcher = "raw"
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}
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// 匹配 "https://gist"开头的链接
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if strings.HasPrefix(rawPath, "https://gist") {
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remainingPath := strings.TrimPrefix(rawPath, "https://")
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parts := strings.Split(remainingPath, "/")
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if len(parts) <= 3 {
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logWarning("%s %s %s %s %s Invalid URL", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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c.String(http.StatusForbidden, "Invalid URL Format. Path: %s", rawPath)
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return
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}
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user = parts[1]
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matcher = "gist"
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}
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// 匹配 "https://api.github.com/"开头的链接
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if strings.HasPrefix(rawPath, "https://api.github.com/") {
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matcher = "api"
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remainingPath := strings.TrimPrefix(rawPath, "https://api.github.com/")
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parts := strings.Split(remainingPath, "/")
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if parts[0] == "repos" {
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user = parts[1]
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repo = parts[2]
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}
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if parts[0] == "users" {
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user = parts[1]
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}
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if cfg.Auth.AuthMethod != "header" || !cfg.Auth.Enabled {
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c.JSON(http.StatusForbidden, gin.H{"error": "HeaderAuth is not enabled."})
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logError("%s %s %s %s %s HeaderAuth-Error: HeaderAuth is not enabled.", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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return
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}
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}
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username := user
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//username, repo := MatchUserRepo(rawPath, cfg, c, matches) // 匹配用户名和仓库名
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logInfo("%s %s %s %s %s Matched-Username: %s, Matched-Repo: %s", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, username, repo)
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// dump log 记录详细信息 c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, full Header
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LogDump("%s %s %s %s %s %s", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, c.Request.Header)
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repouser := fmt.Sprintf("%s/%s", username, repo)
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// 白名单检查
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if cfg.Whitelist.Enabled {
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whitelist := auth.CheckWhitelist(username, repo)
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if !whitelist {
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logErrMsg := fmt.Sprintf("%s %s %s %s %s Whitelist Blocked repo: %s", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, repouser)
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errMsg := fmt.Sprintf("Whitelist Blocked repo: %s", repouser)
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c.JSON(http.StatusForbidden, gin.H{"error": errMsg})
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logWarning(logErrMsg)
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return
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}
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}
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// 黑名单检查
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if cfg.Blacklist.Enabled {
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blacklist := auth.CheckBlacklist(username, repo)
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if blacklist {
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logErrMsg := fmt.Sprintf("%s %s %s %s %s Blacklist Blocked repo: %s", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, repouser)
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errMsg := fmt.Sprintf("Blacklist Blocked repo: %s", repouser)
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c.JSON(http.StatusForbidden, gin.H{"error": errMsg})
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logWarning(logErrMsg)
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return
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}
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}
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/*
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matches = CheckURL(rawPath, c)
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if matches == nil {
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c.AbortWithStatus(http.StatusNotFound)
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logWarning("%s %s %s %s %s 404-NOMATCH", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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return
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}
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*/
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// 若匹配api.github.com/repos/用户名/仓库名/路径, 则检查是否开启HeaderAuth
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// 处理blob/raw路径
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if matcher == "blob" {
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rawPath = strings.Replace(rawPath, "/blob/", "/raw/", 1)
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}
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// 鉴权
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authcheck, err := auth.AuthHandler(c, cfg)
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if !authcheck {
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c.AbortWithStatusJSON(401, gin.H{"error": "Unauthorized"})
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logWarning("%s %s %s %s %s Auth-Error: %v", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, err)
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return
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}
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// IP METHOD URL USERAGENT PROTO MATCHES
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logDebug("%s %s %s %s %s Matches: %v", c.ClientIP(), c.Request.Method, rawPath, c.Request.Header.Get("User-Agent"), c.Request.Proto, matches)
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switch matcher {
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case "releases", "blob", "raw", "gist", "api":
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//ProxyRequest(c, rawPath, cfg, "chrome", runMode)
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ChunkedProxyRequest(c, rawPath, cfg, "chrome", runMode) // dev test chunk
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case "clone":
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//ProxyRequest(c, rawPath, cfg, "git", runMode)
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GitReq(c, rawPath, cfg, "git", runMode)
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default:
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c.String(http.StatusForbidden, "Invalid input.")
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fmt.Println("Invalid input.")
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return
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}
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}
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}
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/*
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func CheckURL(u string, c *gin.Context) []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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errMsg := fmt.Sprintf("%s %s %s %s %s Invalid URL", c.ClientIP(), c.Request.Method, u, c.Request.Header.Get("User-Agent"), c.Request.Proto)
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logError(errMsg)
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return nil
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}
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*/
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