Example #1
0
File: auth.go Project: cem/gogs
// SignedInUser returns the user object of signed user.
// It returns a bool value to indicate whether user uses basic auth or not.
func SignedInUser(ctx *macaron.Context, sess session.Store) (*models.User, bool) {
	if !models.HasEngine {
		return nil, false
	}

	uid := SignedInID(ctx, sess)

	if uid <= 0 {
		if setting.Service.EnableReverseProxyAuth {
			sandstormId := ctx.Req.Header.Get(setting.ReverseProxyAuthUser)
			if len(sandstormId) > 0 {
				u, err := models.GetUserBySandstormID(sandstormId)
				if err != nil {
					if !models.IsErrSandstormUserNotExist(err) {
						log.Error(4, "GetUserBySandstormID: %v", err)
						return nil, false
					}

					// Check if enabled auto-registration.
					if setting.Service.EnableReverseProxyAutoRegister {
						randomDigit := func() string {
							return string(rune('0' + rand.Intn(10)))
						}

						password := ""
						for i := 0; i < 16; i++ {
							password += randomDigit()
						}

						handle := ctx.Req.Header.Get("X-Sandstorm-Preferred-Handle")
						if len(handle) == 0 {
							handle = "gogsuser"
						}

						avatarLink := ctx.Req.Header.Get("X-Sandstorm-User-Picture")
						if len(avatarLink) == 0 {
							avatarLink = "mailto:" + sandstormId
						}

						for suffix := ""; len(suffix) < 5; suffix += randomDigit() {
							u := &models.User{
								SandstormId:     sandstormId,
								SandstormAvatar: avatarLink,
								Name:            handle + suffix,
								Email:           gouuid.NewV4().String() + "@localhost",
								Passwd:          password,
								IsActive:        true,
							}
							err = models.CreateUser(u)
							if err == nil {
								return u, false
							}
						}

						// FIXME: should I create a system notice?
						log.Error(4, "CreateUser: %v", err)
						return nil, false
					}
				}

				newAvatar := ctx.Req.Header.Get("X-Sandstorm-User-Picture")
				if len(newAvatar) == 0 {
					newAvatar = "mailto:" + sandstormId
				}
				if u.SandstormAvatar != newAvatar {
					u.SandstormAvatar = newAvatar
					models.UpdateUser(u)
				}
				return u, false
			}
		}

		// Check with basic auth.
		baHead := ctx.Req.Header.Get("Authorization")
		if len(baHead) > 0 {
			auths := strings.Fields(baHead)
			if len(auths) == 2 && auths[0] == "Basic" {
				uname, passwd, _ := base.BasicAuthDecode(auths[1])

				u, err := models.UserSignIn(uname, passwd)
				if err != nil {
					if !models.IsErrUserNotExist(err) {
						log.Error(4, "UserSignIn: %v", err)
					}
					return nil, false
				}

				return u, true
			}
		}
		return nil, false
	}

	u, err := models.GetUserByID(uid)
	if err != nil {
		log.Error(4, "GetUserById: %v", err)
		return nil, false
	}
	return u, false
}
Example #2
0
File: http.go Project: cem/gogs
func HTTP(ctx *context.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
	)

	// check access
	if askAuth {
		authSandstormId := ctx.Req.Header.Get("X-Sandstorm-User-Id")
		if authSandstormId == "" {
			authRequired(ctx)
			return
		}

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

		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.PushUpdate(models.PushUpdateOptions{
						RefName:      refName,
						OldCommitID:  oldCommitId,
						NewCommitID:  newCommitId,
						PusherID:     authUser.Id,
						PusherName:   authUser.Name,
						RepoUserName: username,
						RepoName:     reponame,
					}); err == nil {
						go models.HookQueue.Add(repo.ID)
						go models.AddTestPullRequestTask(repo.ID, strings.TrimPrefix(refName, "refs/heads/"))
					}

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

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

	runtime.GC()
}