Ejemplo n.º 1
0
Archivo: http.go Proyecto: noikiy/gitea
func Http(ctx *middleware.Context) {
	username := ctx.Params(":username")
	reponame := ctx.Params(":reponame")
	if strings.HasSuffix(reponame, ".git") {
		reponame = reponame[:len(reponame)-4]
	}

	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")
	}

	repoUser, err := models.GetUserByName(username)
	if err != nil {
		if err == models.ErrUserNotExist {
			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 {
		baHead := ctx.Req.Header.Get("Authorization")
		if baHead == "" {
			authRequired(ctx)
			return
		}

		auths := strings.Fields(baHead)
		// 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.Handle(401, "no basic auth and digit auth", nil)
			return
		}
		authUsername, authPasswd, err = base.BasicAuthDecode(auths[1])
		if err != nil {
			ctx.Handle(401, "no basic auth and digit auth", nil)
			return
		}

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

			// Assume username now is a token.
			token, err := models.GetAccessTokenBySha(authUsername)
			if err != nil {
				if err == models.ErrAccessTokenNotExist {
					ctx.Handle(401, "invalid token", nil)
				} else {
					ctx.Handle(500, "GetAccessTokenBySha", err)
				}
				return
			}
			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(401, "no basic auth and digit auth", nil)
				return
			} else if !has {
				if tp == models.ACCESS_MODE_READ {
					has, err = models.HasAccess(authUser, repo, models.ACCESS_MODE_WRITE)
					if err != nil || !has {
						ctx.Handle(401, "no basic auth and digit auth", nil)
						return
					}
				} else {
					ctx.Handle(401, "no basic auth and digit auth", nil)
					return
				}
			}

			if !isPull && repo.IsMirror {
				ctx.Handle(401, "can't push to mirror", nil)
				return
			}
		}
	}

	callback := func(rpc string, input []byte) {
		if rpc == "receive-pack" {
			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.
						models.Update(refName, oldCommitId, newCommitId, authUsername, username, reponame, authUser.Id)
					}
					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()
}
Ejemplo n.º 2
0
func runServ(c *cli.Context) {
	if c.IsSet("config") {
		setting.CustomConf = c.String("config")
	}
	setup("serv.log")

	fail := func(userMessage, logMessage string, args ...interface{}) {
		fmt.Fprintln(os.Stderr, "Gogs: ", userMessage)
		log.GitLogger.Fatal(2, logMessage, args...)
	}

	if len(c.Args()) < 1 {
		fail("Not enough arguments", "Not enough arugments")
	}

	keys := strings.Split(c.Args()[0], "-")
	if len(keys) != 2 {
		fail("key-id format error", "Invalid key id: %s", c.Args()[0])
	}

	keyId, err := com.StrTo(keys[1]).Int64()
	if err != nil {
		fail("key-id format error", "Invalid key id: %s", err)
	}

	user, err := models.GetUserByKeyId(keyId)
	if err != nil {
		fail("internal error", "Fail to get user by key ID(%d): %v", keyId, err)
	}

	cmd := os.Getenv("SSH_ORIGINAL_COMMAND")
	if cmd == "" {
		println("Hi", user.Name, "! You've successfully authenticated, but Gogs does not provide shell access.")
		if user.IsAdmin {
			println("If this is unexpected, please log in with password and setup Gogs under another user.")
		}
		return
	}

	verb, args := parseCmd(cmd)
	repoPath := strings.Trim(args, "'")
	rr := strings.SplitN(repoPath, "/", 2)
	if len(rr) != 2 {
		fail("Invalid repository path", "Invalide repository path: %v", args)
	}
	repoUserName := rr[0]
	repoName := strings.TrimSuffix(rr[1], ".git")

	repoUser, err := models.GetUserByName(repoUserName)
	if err != nil {
		if err == models.ErrUserNotExist {
			fail("Repository owner does not exist", "Unregistered owner: %s", repoUserName)
		}
		fail("Internal error", "Fail to get repository owner(%s): %v", repoUserName, err)
	}

	repo, err := models.GetRepositoryByName(repoUser.Id, repoName)
	if err != nil {
		if models.IsErrRepoNotExist(err) {
			if user.Id == repoUser.Id || repoUser.IsOwnedBy(user.Id) {
				fail("Repository does not exist", "Repository does not exist: %s/%s", repoUser.Name, repoName)
			} else {
				fail(_ACCESS_DENIED_MESSAGE, "Repository does not exist: %s/%s", repoUser.Name, repoName)
			}
		}
		fail("Internal error", "Fail to get repository: %v", err)
	}

	requestedMode, has := COMMANDS[verb]
	if !has {
		fail("Unknown git command", "Unknown git command %s", verb)
	}

	mode, err := models.AccessLevel(user, repo)
	if err != nil {
		fail("Internal error", "Fail to check access: %v", err)
	} else if mode < requestedMode {
		clientMessage := _ACCESS_DENIED_MESSAGE
		if mode >= models.ACCESS_MODE_READ {
			clientMessage = "You do not have sufficient authorization for this action"
		}
		fail(clientMessage,
			"User %s does not have level %v access to repository %s",
			user.Name, requestedMode, repoPath)
	}

	uuid := uuid.NewV4().String()
	os.Setenv("uuid", uuid)

	var gitcmd *exec.Cmd
	verbs := strings.Split(verb, " ")
	if len(verbs) == 2 {
		gitcmd = exec.Command(verbs[0], verbs[1], repoPath)
	} else {
		gitcmd = exec.Command(verb, repoPath)
	}
	gitcmd.Dir = setting.RepoRootPath
	gitcmd.Stdout = os.Stdout
	gitcmd.Stdin = os.Stdin
	gitcmd.Stderr = os.Stderr
	if err = gitcmd.Run(); err != nil {
		fail("Internal error", "Fail to execute git command: %v", err)
	}

	if requestedMode == models.ACCESS_MODE_WRITE {
		tasks, err := models.GetUpdateTasksByUuid(uuid)
		if err != nil {
			log.GitLogger.Fatal(2, "GetUpdateTasksByUuid: %v", err)
		}

		for _, task := range tasks {
			err = models.Update(task.RefName, task.OldCommitId, task.NewCommitId,
				user.Name, repoUserName, repoName, user.Id)
			if err != nil {
				log.GitLogger.Error(2, "Fail to update: %v", err)
			}
		}

		if err = models.DelUpdateTasksByUuid(uuid); err != nil {
			log.GitLogger.Fatal(2, "DelUpdateTasksByUuid: %v", err)
		}
	}

	// Update key activity.
	key, err := models.GetPublicKeyById(keyId)
	if err != nil {
		fail("Internal error", "GetPublicKeyById: %v", err)
	}
	key.Updated = time.Now()
	if err = models.UpdatePublicKey(key); err != nil {
		fail("Internal error", "UpdatePublicKey: %v", err)
	}
}