コード例 #1
0
ファイル: http.go プロジェクト: cuteluo1983/gogs
func HTTP(ctx *middleware.Context) {
	username := ctx.Params(":username")
	reponame := strings.TrimSuffix(ctx.Params(":reponame"), ".git")

	var isPull bool
	service := ctx.Query("service")
	if service == "git-receive-pack" ||
		strings.HasSuffix(ctx.Req.URL.Path, "git-receive-pack") {
		isPull = false
	} else if service == "git-upload-pack" ||
		strings.HasSuffix(ctx.Req.URL.Path, "git-upload-pack") {
		isPull = true
	} else {
		isPull = (ctx.Req.Method == "GET")
	}

	isWiki := false
	if strings.HasSuffix(reponame, ".wiki") {
		isWiki = true
		reponame = reponame[:len(reponame)-5]
	}

	repoUser, err := models.GetUserByName(username)
	if err != nil {
		if models.IsErrUserNotExist(err) {
			ctx.Handle(404, "GetUserByName", nil)
		} else {
			ctx.Handle(500, "GetUserByName", err)
		}
		return
	}

	repo, err := models.GetRepositoryByName(repoUser.Id, reponame)
	if err != nil {
		if models.IsErrRepoNotExist(err) {
			ctx.Handle(404, "GetRepositoryByName", nil)
		} else {
			ctx.Handle(500, "GetRepositoryByName", err)
		}
		return
	}

	// Only public pull don't need auth.
	isPublicPull := !repo.IsPrivate && isPull
	var (
		askAuth      = !isPublicPull || setting.Service.RequireSignInView
		authUser     *models.User
		authUsername string
		authPasswd   string
	)

	// check access
	if askAuth {
		authHead := ctx.Req.Header.Get("Authorization")
		if len(authHead) == 0 {
			authRequired(ctx)
			return
		}

		auths := strings.Fields(authHead)
		// currently check basic auth
		// TODO: support digit auth
		// FIXME: middlewares/context.go did basic auth check already,
		// maybe could use that one.
		if len(auths) != 2 || auths[0] != "Basic" {
			ctx.HandleText(401, "no basic auth and digit auth")
			return
		}
		authUsername, authPasswd, err = base.BasicAuthDecode(auths[1])
		if err != nil {
			ctx.HandleText(401, "no basic auth and digit auth")
			return
		}

		authUser, err = models.UserSignIn(authUsername, authPasswd)
		if err != nil {
			if !models.IsErrUserNotExist(err) {
				ctx.Handle(500, "UserSignIn error: %v", err)
				return
			}

			// Assume username now is a token.
			token, err := models.GetAccessTokenBySHA(authUsername)
			if err != nil {
				if models.IsErrAccessTokenNotExist(err) {
					ctx.HandleText(401, "invalid token")
				} else {
					ctx.Handle(500, "GetAccessTokenBySha", err)
				}
				return
			}
			token.Updated = time.Now()
			if err = models.UpdateAccessToekn(token); err != nil {
				ctx.Handle(500, "UpdateAccessToekn", err)
			}
			authUser, err = models.GetUserByID(token.UID)
			if err != nil {
				ctx.Handle(500, "GetUserByID", err)
				return
			}
			authUsername = authUser.Name
		}

		if !isPublicPull {
			var tp = models.ACCESS_MODE_WRITE
			if isPull {
				tp = models.ACCESS_MODE_READ
			}

			has, err := models.HasAccess(authUser, repo, tp)
			if err != nil {
				ctx.Handle(500, "HasAccess", err)
				return
			} else if !has {
				if tp == models.ACCESS_MODE_READ {
					has, err = models.HasAccess(authUser, repo, models.ACCESS_MODE_WRITE)
					if err != nil {
						ctx.Handle(500, "HasAccess2", err)
						return
					} else if !has {
						ctx.HandleText(403, "User permission denied")
						return
					}
				} else {
					ctx.HandleText(403, "User permission denied")
					return
				}
			}

			if !isPull && repo.IsMirror {
				ctx.HandleText(403, "mirror repository is read-only")
				return
			}
		}
	}

	callback := func(rpc string, input []byte) {
		if rpc != "receive-pack" || isWiki {
			return
		}

		var lastLine int64 = 0
		for {
			head := input[lastLine : lastLine+2]
			if head[0] == '0' && head[1] == '0' {
				size, err := strconv.ParseInt(string(input[lastLine+2:lastLine+4]), 16, 32)
				if err != nil {
					log.Error(4, "%v", err)
					return
				}

				if size == 0 {
					//fmt.Println(string(input[lastLine:]))
					break
				}

				line := input[lastLine : lastLine+size]
				idx := bytes.IndexRune(line, '\000')
				if idx > -1 {
					line = line[:idx]
				}
				fields := strings.Fields(string(line))
				if len(fields) >= 3 {
					oldCommitId := fields[0][4:]
					newCommitId := fields[1]
					refName := fields[2]

					// FIXME: handle error.
					if err = models.Update(refName, oldCommitId, newCommitId, authUsername, username, reponame, authUser.Id); err == nil {
						go models.HookQueue.Add(repo.ID)
						go models.AddTestPullRequestTask(repo.ID, strings.TrimPrefix(refName, "refs/heads/"))
					}

				}
				lastLine = lastLine + size
			} else {
				break
			}
		}
	}

	HTTPBackend(&Config{
		RepoRootPath: setting.RepoRootPath,
		GitBinPath:   "git",
		UploadPack:   true,
		ReceivePack:  true,
		OnSucceed:    callback,
	})(ctx.Resp, ctx.Req.Request)

	runtime.GC()
}