[MM-44336] Add timestamp parameter to test data slash commands (#21400)

app/slashcommands/auto_channels.go

@@ -20,6 +20,7 @@ type AutoChannelCreator struct {
 	NameLen            utils.Range
 	NameCharset        string
 	ChannelType        model.ChannelType
+	CreateTime         int64
 }
 
 func NewAutoChannelCreator(a *app.App, team *model.Team, userID string) *AutoChannelCreator {
@@ -33,6 +34,7 @@ func NewAutoChannelCreator(a *app.App, team *model.Team, userID string) *AutoCha
 		NameLen:            ChannelNameLen,
 		NameCharset:        utils.LOWERCASE,
 		ChannelType:        ChannelType,
+		CreateTime:         0,
 	}
 }
 
@@ -51,6 +53,7 @@ func (cfg *AutoChannelCreator) createRandomChannel(c request.CTX) (*model.Channe
 		Name:        name,
 		Type:        cfg.ChannelType,
 		CreatorId:   cfg.userID,
+		CreateAt:    cfg.CreateTime,
 	}
 
 	channel, err := cfg.a.CreateChannel(c, channel, true)
@@ -74,23 +77,3 @@ func (cfg *AutoChannelCreator) CreateTestChannels(c request.CTX, num utils.Range
 
 	return channels, nil
 }
-
-func (cfg *AutoChannelCreator) CreateTestDMs(c request.CTX, num utils.Range) ([]*model.Channel, error) {
-	numDMs := utils.RandIntFromRange(num)
-	dms := make([]*model.Channel, numDMs)
-
-	users, err := cfg.a.GetUsersFromProfiles(&model.UserGetOptions{Page: 0, PerPage: numDMs})
-	if err != nil {
-		return nil, err
-	}
-
-	for i, user := range users {
-		var err *model.AppError
-		dms[i], err = cfg.a.GetOrCreateDirectChannel(c, cfg.userID, user.Id)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return dms, nil
-}

app/slashcommands/auto_posts.go

@@ -17,31 +17,37 @@ import (
 )
 
 type AutoPostCreator struct {
-	a              *app.App
+	a               *app.App
-	channelid      string
+	channelid       string
-	userid         string
+	userid          string
-	Fuzzy          bool
+	Fuzzy           bool
-	TextLength     utils.Range
+	TextLength      utils.Range
-	HasImage       bool
+	HasImage        bool
-	ImageFilenames []string
+	ImageFilenames  []string
-	Users          []string
+	Users           []string
-	Mentions       utils.Range
+	UsersToPostFrom []string
-	Tags           utils.Range
+	Mentions        utils.Range
+	Tags            utils.Range
+	CreateTime      int64
+	postsCreated    int
 }
 
 // Automatic poster used for testing
 func NewAutoPostCreator(a *app.App, channelid, userid string) *AutoPostCreator {
 	return &AutoPostCreator{
-		a:              a,
+		a:               a,
-		channelid:      channelid,
+		channelid:       channelid,
-		userid:         userid,
+		userid:          userid,
-		Fuzzy:          false,
+		Fuzzy:           false,
-		TextLength:     utils.Range{Begin: 100, End: 200},
+		TextLength:      utils.Range{Begin: 100, End: 200},
-		HasImage:       false,
+		HasImage:        false,
-		ImageFilenames: TestImageFileNames,
+		ImageFilenames:  TestImageFileNames,
-		Users:          []string{},
+		Users:           []string{},
-		Mentions:       utils.Range{Begin: 0, End: 5},
+		UsersToPostFrom: []string{},
-		Tags:           utils.Range{Begin: 0, End: 7},
+		Mentions:        utils.Range{Begin: 0, End: 5},
+		Tags:            utils.Range{Begin: 0, End: 7},
+		CreateTime:      0,
+		postsCreated:    0,
 	}
 }
 
@@ -97,9 +103,23 @@ func (cfg *AutoPostCreator) CreateRandomPostNested(c request.CTX, rootId string)
 		Message:   postText,
 		FileIds:   fileIDs,
 	}
+	if cfg.CreateTime != 0 {
+		// Creating posts with the exact same timestamp results in some posts being skipped
+		// when they are retrieved by the API based on timestamp.
+		post.CreateAt = cfg.CreateTime + int64(cfg.postsCreated)
+	}
+	if len(cfg.UsersToPostFrom) != 0 {
+		i := utils.RandIntFromRange(utils.Range{Begin: 0, End: len(cfg.UsersToPostFrom)})
+		if i < len(cfg.UsersToPostFrom) {
+			post.UserId = cfg.UsersToPostFrom[i]
+		}
+	}
 	rpost, err := cfg.a.CreatePostMissingChannel(c, post, true)
 	if err != nil {
 		return nil, err
 	}
+
+	cfg.postsCreated += 1
+
 	return rpost, nil
 }

app/slashcommands/auto_users.go

@@ -23,6 +23,7 @@ type AutoUserCreator struct {
 	NameLength   utils.Range
 	NameCharset  string
 	Fuzzy        bool
+	JoinTime     int64
 }
 
 func NewAutoUserCreator(a *app.App, client *model.Client4, team *model.Team) *AutoUserCreator {
@@ -35,6 +36,7 @@ func NewAutoUserCreator(a *app.App, client *model.Client4, team *model.Team) *Au
 		NameLength:   UserNameLen,
 		NameCharset:  utils.LOWERCASE,
 		Fuzzy:        false,
+		JoinTime:     0,
 	}
 }
 
@@ -92,14 +94,22 @@ func (cfg *AutoUserCreator) createRandomUser(c request.CTX) (*model.User, error)
 	user := &model.User{
 		Email:    userEmail,
 		Nickname: userName,
-		Password: UserPassword}
+		Password: UserPassword,
+		CreateAt: cfg.JoinTime,
+	}
 
 	ruser, appErr := cfg.app.CreateUserWithInviteId(c, user, cfg.team.InviteId, "")
 	if appErr != nil {
 		return nil, appErr
 	}
 
-	status := &model.Status{UserId: ruser.Id, Status: model.StatusOnline, Manual: false, LastActivityAt: model.GetMillis(), ActiveChannel: ""}
+	status := &model.Status{
+		UserId:         ruser.Id,
+		Status:         model.StatusOnline,
+		Manual:         false,
+		LastActivityAt: ruser.CreateAt,
+		ActiveChannel:  "",
+	}
 	if err := cfg.app.Srv().Store().Status().SaveOrUpdate(status); err != nil {
 		return nil, err
 	}
@@ -110,6 +120,18 @@ func (cfg *AutoUserCreator) createRandomUser(c request.CTX) (*model.User, error)
 		return nil, err
 	}
 
+	if cfg.JoinTime != 0 {
+		teamMember, appErr := cfg.app.GetTeamMember(cfg.team.Id, ruser.Id)
+		if appErr != nil {
+			return nil, appErr
+		}
+		teamMember.CreateAt = cfg.JoinTime
+		_, err := cfg.app.Srv().Store().Team().UpdateMember(teamMember)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	return ruser, nil
 }
 

app/slashcommands/command_loadtest.go

@@ -30,34 +30,52 @@ var usage = `Mattermost testing commands to help configure the system
 		/test setup [teams] [fuzz] <Num Channels> <Num Users> <NumPosts>
 
 		Example:
-		/test setup teams fuzz 10 20 50
+			/test setup teams fuzz 10 20 50
 
-	Users - Add a specified number of random users with fuzz text to current team.
+	Users - Add a specified number of random users with fuzz text to current team, at the specified Unix timestamp in milliseconds.
-		/test users [fuzz] <Min Users> <Max Users>
+		/test users [fuzz] [range=min[,max]] [time=user_join_timestamp]
+
+		Default: range=2,5 time=
+
+		Examples:
+			/test users fuzz range=3,8 time=1565076128000
+			/test users range=1
+
+	Channels - Add a specified number of random public (o) or private (p) channels with fuzz text to current team, at the specified Unix timestamp in milliseconds.
+		/test channels [fuzz] [range=min[,max]] [type=(o|p)] [time=channel_create_timestamp]
+
+		Default: range=2,5 type=o time=
+
+		Examples:
+			/test channels fuzz range=5,10 type=p time=1565076128000
+			/test channels range=1
+
+	DMs - Add a specified number of random DM messages between the current user and a specified user, at the specified Unix timestamp in milliseconds. If a timestamp is provided, posts are created one millisecond apart. Note: You may need to clear your browser cache in order to see these posts in the UI.
+		/test dms u=@username [range=min[,max]] [time=dm_create_timestamp]
+
+		Default: range=2,5 time=
+
+		Examples:
+			/test dms u=@user range=5,10 time=1565076128000
+			/test dms u=@user range=2
+
+	ThreadedPost - Create a threaded post with a specified number of replies at the specified Unix timestamp in milliseconds. If a timestamp is provided, posts are created one millisecond apart. Note: You may need to clear your browser cache in order to see these posts in the UI.
+        /test threaded_post [range=min[,max]] [time=post_timestamp]
+
+		Default: range=1000 time=
+
+		Examples:
+			/test threaded_post
+			/test threaded_post range=100,200 time=1565076128000
+
+	Posts - Add some random posts with fuzz text to current channel, at the specified Unix timestamp in milliseconds. If a timestamp is provided, posts are created one millisecond apart. Note: You may need to clear your browser cache in order to see these posts in the UI.
+		/test posts [fuzz] [range=min[,max]] [images=max_images] [time=post_timestamp]
+
+		Default: range=2,5 images=0 time=
 
 		Example:
-			/test users fuzz 5 10
+			/test posts fuzz range=5,10 images=3 time=1565076128000
-
+			/test posts range=2
-	Channels - Add a specified number of random channels with fuzz text to current team.
-		/test channels [fuzz] <Min Channels> <Max Channels>
-
-		Example:
-			/test channels fuzz 5 10
-
-	DMs - Add a specified number of DMs for current user. Requires enough users to be loaded.
-			/test dms <Min DMs> <Max DMs>
-
-			Example:
-				/test dms 5 10
-
-	ThreadedPost - create a large threaded post
-        /test threaded_post
-
-	Posts - Add some random posts with fuzz text to current channel.
-		/test posts [fuzz] <Min Posts> <Max Posts> <Max Images>
-
-		Example:
-			/test posts fuzz 5 10 3
 
 	Post - Add post to a channel as another user.
 		/test post u=@username p=passwd c=~channelname t=teamname "message"
@@ -72,10 +90,10 @@ var usage = `Mattermost testing commands to help configure the system
 			/test http://www.example.com/sample_file.md
 
 	Json - Add a post using the JSON file as payload to the current channel.
-	        /test json url
+	    /test json url
 
-		Example
+		Example:
-		/test json http://www.example.com/sample_body.json
+			/test json http://www.example.com/sample_body.json
 
 `
 
@@ -84,11 +102,16 @@ const (
 )
 
 var (
-	userRE    = regexp.MustCompile(`u=@([^\s]+)`)
+	userRE    = regexp.MustCompile(`u=@?([^\s]+)`)
 	passwdRE  = regexp.MustCompile(`p=([^\s]+)`)
 	teamRE    = regexp.MustCompile(`t=([^\s]+)`)
 	channelRE = regexp.MustCompile(`c=~([^\s]+)`)
 	messageRE = regexp.MustCompile(`"(.*)"`)
+	fuzzRE    = regexp.MustCompile(`fuzz`)
+	rangeRE   = regexp.MustCompile(`range=([^\s]+)`)
+	timeRE    = regexp.MustCompile(`time=([^\s]+)`)
+	imagesRE  = regexp.MustCompile(`images=([^\s]+)`)
+	typeRE    = regexp.MustCompile(`type=([^\s])+`)
 )
 
 type LoadTestProvider struct {
@@ -289,14 +312,19 @@ func (*LoadTestProvider) UsersCommand(a *app.App, c request.CTX, args *model.Com
 	cmd := strings.TrimSpace(strings.TrimPrefix(message, "users"))
 
 	doFuzz := false
-	if strings.Index(cmd, "fuzz") == 0 {
+	if fuzzRE.MatchString(cmd) {
 		doFuzz = true
-		cmd = strings.TrimSpace(strings.TrimPrefix(cmd, "fuzz"))
 	}
 
-	usersr, ok := parseRange(cmd, "")
+	var err error
-	if !ok {
+	rng := utils.Range{Begin: 2, End: 5}
-		usersr = utils.Range{Begin: 2, End: 5}
+	rangeParam := getMatch(rangeRE, cmd)
+	if rangeParam != "" {
+		rng, err = parseRange(rangeParam)
+		if err != nil {
+			return &model.CommandResponse{Text: "Failed to add users: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+		}
+
 	}
 
 	team, err := a.Srv().Store().Team().Get(args.TeamId)
@@ -304,10 +332,20 @@ func (*LoadTestProvider) UsersCommand(a *app.App, c request.CTX, args *model.Com
 		return &model.CommandResponse{Text: "Failed to add users", ResponseType: model.CommandResponseTypeEphemeral}, err
 	}
 
+	time := int64(0)
+	timeParam := getMatch(timeRE, cmd)
+	if timeParam != "" {
+		time, err = strconv.ParseInt(timeParam, 10, 64)
+		if err != nil || time < 0 {
+			return &model.CommandResponse{Text: "Failed to add users: Invalid time parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid time parameter")
+		}
+	}
+
 	client := model.NewAPIv4Client(args.SiteURL)
 	userCreator := NewAutoUserCreator(a, client, team)
 	userCreator.Fuzzy = doFuzz
-	if _, err := userCreator.CreateTestUsers(c, usersr); err != nil {
+	userCreator.JoinTime = time
+	if _, err := userCreator.CreateTestUsers(c, rng); err != nil {
 		return &model.CommandResponse{Text: "Failed to add users: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
 	}
 
@@ -318,14 +356,19 @@ func (*LoadTestProvider) ChannelsCommand(a *app.App, c request.CTX, args *model.
 	cmd := strings.TrimSpace(strings.TrimPrefix(message, "channels"))
 
 	doFuzz := false
-	if strings.Index(cmd, "fuzz") == 0 {
+	if fuzzRE.MatchString(cmd) {
 		doFuzz = true
-		cmd = strings.TrimSpace(strings.TrimPrefix(cmd, "fuzz"))
 	}
 
-	channelsr, ok := parseRange(cmd, "")
+	var err error
-	if !ok {
+	rng := utils.Range{Begin: 2, End: 5}
-		channelsr = utils.Range{Begin: 2, End: 5}
+	rangeParam := getMatch(rangeRE, cmd)
+	if rangeParam != "" {
+		rng, err = parseRange(rangeParam)
+		if err != nil {
+			return &model.CommandResponse{Text: "Failed to add channels: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+		}
+
 	}
 
 	team, err := a.Srv().Store().Team().Get(args.TeamId)
@@ -333,9 +376,32 @@ func (*LoadTestProvider) ChannelsCommand(a *app.App, c request.CTX, args *model.
 		return &model.CommandResponse{Text: "Failed to add channels", ResponseType: model.CommandResponseTypeEphemeral}, err
 	}
 
+	typ := model.ChannelTypeOpen
+	typeParam := getMatch(typeRE, cmd)
+	if typeParam != "" {
+		switch strings.ToUpper(typeParam) {
+		case "O":
+		case "P":
+			typ = model.ChannelTypePrivate
+		default:
+			return &model.CommandResponse{Text: "Failed to add channels: Invalid type parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid type parameter")
+		}
+	}
+
+	time := int64(0)
+	timeParam := getMatch(timeRE, cmd)
+	if timeParam != "" {
+		time, err = strconv.ParseInt(timeParam, 10, 64)
+		if err != nil || time < 0 {
+			return &model.CommandResponse{Text: "Failed to add channels: Invalid time parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid time parameter")
+		}
+	}
+
 	channelCreator := NewAutoChannelCreator(a, team, args.UserId)
 	channelCreator.Fuzzy = doFuzz
-	if _, err := channelCreator.CreateTestChannels(c, channelsr); err != nil {
+	channelCreator.CreateTime = time
+	channelCreator.ChannelType = typ
+	if _, err := channelCreator.CreateTestChannels(c, rng); err != nil {
 		return &model.CommandResponse{Text: "Failed to create test channels: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
 	}
 
@@ -345,20 +411,71 @@ func (*LoadTestProvider) ChannelsCommand(a *app.App, c request.CTX, args *model.
 func (*LoadTestProvider) DMsCommand(a *app.App, c request.CTX, args *model.CommandArgs, message string) (*model.CommandResponse, error) {
 	cmd := strings.TrimSpace(strings.TrimPrefix(message, "dms"))
 
-	channelsr, ok := parseRange(cmd, "")
+	var err error
-	if !ok {
+
-		channelsr = utils.Range{Begin: 2, End: 5}
+	username := getMatch(userRE, message)
+	user, appErr := a.GetUserByUsername(username)
+	if appErr != nil {
+		return &model.CommandResponse{Text: "Failed to add DMS: Invalid username", ResponseType: model.CommandResponseTypeEphemeral}, appErr
 	}
 
-	channelCreator := NewAutoChannelCreator(a, nil, args.UserId)
+	rng := utils.Range{Begin: 2, End: 5}
-	if _, err := channelCreator.CreateTestDMs(c, channelsr); err != nil {
+	rangeParam := getMatch(rangeRE, cmd)
-		return &model.CommandResponse{Text: "Failed to create test DMs: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+	if rangeParam != "" {
+		rng, err = parseRange(rangeParam)
+		if err != nil {
+			return &model.CommandResponse{Text: "Failed to add DMs: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+		}
+
+	}
+
+	time := int64(0)
+	timeParam := getMatch(timeRE, cmd)
+	if timeParam != "" {
+		time, err = strconv.ParseInt(timeParam, 10, 64)
+		if err != nil || time < 0 {
+			return &model.CommandResponse{Text: "Failed to add DMs: Invalid time parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid time parameter")
+		}
+	}
+
+	channel, err := a.GetOrCreateDirectChannel(c, args.UserId, user.Id)
+
+	postCreator := NewAutoPostCreator(a, channel.Id, args.UserId)
+	postCreator.CreateTime = time
+	postCreator.UsersToPostFrom = []string{user.Id}
+	numPosts := utils.RandIntFromRange(rng)
+	for i := 0; i < numPosts; i++ {
+		if _, err := postCreator.CreateRandomPost(c); err != nil {
+			return &model.CommandResponse{Text: "Failed to create test DMs: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+		}
 	}
 
 	return &model.CommandResponse{Text: "Added DMs", ResponseType: model.CommandResponseTypeEphemeral}, nil
 }
 
 func (*LoadTestProvider) ThreadedPostCommand(a *app.App, c request.CTX, args *model.CommandArgs, message string) (*model.CommandResponse, error) {
+	cmd := strings.TrimSpace(strings.TrimPrefix(message, "threaded_post"))
+
+	var err error
+	rng := utils.Range{Begin: 1000, End: 1000}
+	rangeParam := getMatch(rangeRE, cmd)
+	if rangeParam != "" {
+		rng, err = parseRange(rangeParam)
+		if err != nil {
+			return &model.CommandResponse{Text: "Failed to create post: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+		}
+
+	}
+
+	time := int64(0)
+	timeParam := getMatch(timeRE, cmd)
+	if timeParam != "" {
+		time, err = strconv.ParseInt(timeParam, 10, 64)
+		if err != nil || time < 0 {
+			return &model.CommandResponse{Text: "Failed to create post: Invalid time parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid time parameter")
+		}
+	}
+
 	var usernames []string
 	options := &model.UserGetOptions{InTeamId: args.TeamId, Page: 0, PerPage: 1000}
 	if profileUsers, err := a.Srv().Store().User().GetProfiles(options); err == nil {
@@ -373,11 +490,13 @@ func (*LoadTestProvider) ThreadedPostCommand(a *app.App, c request.CTX, args *mo
 	testPoster := NewAutoPostCreator(a, args.ChannelId, args.UserId)
 	testPoster.Fuzzy = true
 	testPoster.Users = usernames
+	testPoster.CreateTime = time
 	rpost, err2 := testPoster.CreateRandomPost(c)
 	if err2 != nil {
 		return &model.CommandResponse{Text: "Failed to create a post", ResponseType: model.CommandResponseTypeEphemeral}, err2
 	}
-	for i := 0; i < 1000; i++ {
+	numPosts := utils.RandIntFromRange(rng)
+	for i := 0; i < numPosts; i++ {
 		testPoster.CreateRandomPostNested(c, rpost.Id)
 	}
 
@@ -388,21 +507,36 @@ func (*LoadTestProvider) PostsCommand(a *app.App, c request.CTX, args *model.Com
 	cmd := strings.TrimSpace(strings.TrimPrefix(message, "posts"))
 
 	doFuzz := false
-	if strings.Index(cmd, "fuzz") == 0 {
+	if fuzzRE.MatchString(cmd) {
 		doFuzz = true
-		cmd = strings.TrimSpace(strings.TrimPrefix(cmd, "fuzz"))
 	}
 
-	postsr, ok := parseRange(cmd, "")
+	var err error
-	if !ok {
+	rng := utils.Range{Begin: 2, End: 5}
-		postsr = utils.Range{Begin: 20, End: 30}
+	rangeParam := getMatch(rangeRE, cmd)
+	if rangeParam != "" {
+		rng, err = parseRange(rangeParam)
+		if err != nil {
+			return &model.CommandResponse{Text: "Failed to add posts: " + err.Error(), ResponseType: model.CommandResponseTypeEphemeral}, err
+		}
+
 	}
 
-	tokens := strings.Fields(cmd)
+	maxImages := 0
-	rimages := utils.Range{Begin: 0, End: 0}
+	imagesParam := getMatch(imagesRE, cmd)
-	if len(tokens) >= 3 {
+	if imagesParam != "" {
-		if numImages, err := strconv.Atoi(tokens[2]); err == nil {
+		maxImages, err = strconv.Atoi(imagesParam)
-			rimages = utils.Range{Begin: numImages, End: numImages}
+		if err != nil {
+			return &model.CommandResponse{Text: "Failed to add posts: Invalid images parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid images parameter")
+		}
+	}
+
+	time := int64(0)
+	timeParam := getMatch(timeRE, cmd)
+	if timeParam != "" {
+		time, err = strconv.ParseInt(timeParam, 10, 64)
+		if err != nil || time < 0 {
+			return &model.CommandResponse{Text: "Failed to add posts: Invalid time parameter", ResponseType: model.CommandResponseTypeEphemeral}, errors.New("Invalid time parameter")
 		}
 	}
 
@@ -420,9 +554,10 @@ func (*LoadTestProvider) PostsCommand(a *app.App, c request.CTX, args *model.Com
 	testPoster := NewAutoPostCreator(a, args.ChannelId, args.UserId)
 	testPoster.Fuzzy = doFuzz
 	testPoster.Users = usernames
+	testPoster.CreateTime = time
 
-	numImages := utils.RandIntFromRange(rimages)
+	numImages := utils.RandIntFromRange(utils.Range{Begin: 0, End: maxImages})
-	numPosts := utils.RandIntFromRange(postsr)
+	numPosts := utils.RandIntFromRange(rng)
 	for i := 0; i < numPosts; i++ {
 		testPoster.HasImage = (i < numImages)
 		_, err := testPoster.CreateRandomPost(c)
@@ -585,8 +720,8 @@ func (*LoadTestProvider) JsonCommand(a *app.App, c request.CTX, args *model.Comm
 	return &model.CommandResponse{Text: "Loaded data", ResponseType: model.CommandResponseTypeEphemeral}, nil
 }
 
-func parseRange(command string, cmd string) (utils.Range, bool) {
+func parseRange(rng string) (utils.Range, error) {
-	tokens := strings.Fields(strings.TrimPrefix(command, cmd))
+	tokens := strings.Split(rng, ",")
 	var begin int
 	var end int
 	var err1 error
@@ -594,20 +729,20 @@ func parseRange(command string, cmd string) (utils.Range, bool) {
 	switch {
 	case len(tokens) == 1:
 		begin, err1 = strconv.Atoi(tokens[0])
-		end = begin
+		if err1 != nil || begin < 0 {
-		if err1 != nil {
+			return utils.Range{Begin: 0, End: 0}, errors.New("Invalid range parameter")
-			return utils.Range{Begin: 0, End: 0}, false
 		}
-	case len(tokens) >= 2:
+		end = begin
+	case len(tokens) == 2:
 		begin, err1 = strconv.Atoi(tokens[0])
 		end, err2 = strconv.Atoi(tokens[1])
-		if err1 != nil || err2 != nil {
+		if err1 != nil || err2 != nil || begin < 0 || end < begin {
-			return utils.Range{Begin: 0, End: 0}, false
+			return utils.Range{Begin: 0, End: 0}, errors.New("Invalid range parameter")
 		}
 	default:
-		return utils.Range{Begin: 0, End: 0}, false
+		return utils.Range{Begin: 0, End: 0}, errors.New("Invalid range parameter")
 	}
-	return utils.Range{Begin: begin, End: end}, true
+	return utils.Range{Begin: begin, End: end}, nil
 }
 
 func contains(items []string, token string) bool {

model/user.go

@@ -437,7 +437,9 @@ func (u *User) PreSave() {
 	u.Username = NormalizeUsername(u.Username)
 	u.Email = NormalizeEmail(u.Email)
 
-	u.CreateAt = GetMillis()
+	if u.CreateAt == 0 {
+		u.CreateAt = GetMillis()
+	}
 	u.UpdateAt = u.CreateAt
 
 	u.LastPasswordUpdate = u.CreateAt

store/sqlstore/team_store.go

@@ -876,7 +876,7 @@ func (s SqlTeamStore) UpdateMultipleMembers(members []*model.TeamMember) ([]*mod
 		}
 
 		if _, err := s.GetMasterX().NamedExec(`UPDATE TeamMembers
-				SET Roles=:Roles, DeleteAt=:DeleteAt, SchemeGuest=:SchemeGuest,
+				SET Roles=:Roles, DeleteAt=:DeleteAt, CreateAt=:CreateAt, SchemeGuest=:SchemeGuest,
 					SchemeUser=:SchemeUser, SchemeAdmin=:SchemeAdmin
 				WHERE TeamId=:TeamId AND UserId=:UserId`, newTeamMember); err != nil {
 			return nil, errors.Wrap(err, "failed to update TeamMember")