MM-15422: Adds new parameters for retrieving pages of channels. (#10903)

* MM-15422: Adds new parameters for retrieving pages of channels and searching channels.

* MM-15422: Appends excluded channel names with defaults. Adds separate struct for data-tier option parameter.

api4/channel.go

@@ -503,7 +503,12 @@ func getAllChannels(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	channels, err := c.App.GetAllChannels(c.Params.Page, c.Params.PerPage, false)
+	opts := model.ChannelSearchOpts{
+		NotAssociatedToGroup:   c.Params.NotAssociatedToGroup,
+		ExcludeDefaultChannels: c.Params.ExcludeDefaultChannels,
+	}
+
+	channels, err := c.App.GetAllChannels(c.Params.Page, c.Params.PerPage, opts)
 	if err != nil {
 		c.Err = err
 		return
@@ -727,9 +732,13 @@ func searchAllChannels(c *Context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	includeDeleted := r.URL.Query().Get("include_deleted") == "true"
+	opts := model.ChannelSearchOpts{
+		NotAssociatedToGroup:   props.NotAssociatedToGroup,
+		ExcludeDefaultChannels: props.ExcludeDefaultChannels,
+		IncludeDeleted:         r.URL.Query().Get("include_deleted") == "true",
+	}
 
-	channels, err := c.App.SearchAllChannels(props.Term, includeDeleted)
+	channels, err := c.App.SearchAllChannels(props.Term, opts)
 	if err != nil {
 		c.Err = err
 		return

app/channel.go

@@ -16,23 +16,52 @@ import (
 	"github.com/mattermost/mattermost-server/utils"
 )
 
-func (a *App) CreateDefaultChannels(teamId string) ([]*model.Channel, *model.AppError) {
-	townSquare := &model.Channel{DisplayName: utils.T("api.channel.create_default_channels.town_square"), Name: "town-square", Type: model.CHANNEL_OPEN, TeamId: teamId}
-
-	if _, err := a.CreateChannel(townSquare, false); err != nil {
-		return nil, err
+// CreateDefaultChannels creates channels in the given team for each channel returned by (*App).DefaultChannelNames.
+//
+func (a *App) CreateDefaultChannels(teamID string) ([]*model.Channel, *model.AppError) {
+	displayNames := map[string]string{
+		"town-square": utils.T("api.channel.create_default_channels.town_square"),
+		"off-topic":   utils.T("api.channel.create_default_channels.off_topic"),
 	}
-
-	offTopic := &model.Channel{DisplayName: utils.T("api.channel.create_default_channels.off_topic"), Name: "off-topic", Type: model.CHANNEL_OPEN, TeamId: teamId}
-
-	if _, err := a.CreateChannel(offTopic, false); err != nil {
-		return nil, err
+	channels := []*model.Channel{}
+	defaultChannelNames := a.DefaultChannelNames()
+	for _, name := range defaultChannelNames {
+		displayName := utils.TDefault(displayNames[name], name)
+		channel := &model.Channel{DisplayName: displayName, Name: name, Type: model.CHANNEL_OPEN, TeamId: teamID}
+		if _, err := a.CreateChannel(channel, false); err != nil {
+			return nil, err
+		}
+		channels = append(channels, channel)
 	}
-
-	channels := []*model.Channel{townSquare, offTopic}
 	return channels, nil
 }
 
+// DefaultChannelNames returns the list of system-wide default channel names.
+//
+// By default the list will be (not necessarily in this order):
+//	['town-square', 'off-topic']
+// However, if TeamSettings.ExperimentalDefaultChannels contains a list of channels then that list will replace
+// 'off-topic' and be included in the return results in addition to 'town-square'. For example:
+//	['town-square', 'game-of-thrones', 'wow']
+//
+func (a *App) DefaultChannelNames() []string {
+	names := []string{"town-square"}
+
+	if len(a.Config().TeamSettings.ExperimentalDefaultChannels) == 0 {
+		names = append(names, "off-topic")
+	} else {
+		seenChannels := map[string]bool{}
+		for _, channelName := range a.Config().TeamSettings.ExperimentalDefaultChannels {
+			if !seenChannels[channelName] {
+				names = append(names, channelName)
+				seenChannels[channelName] = true
+			}
+		}
+	}
+
+	return names
+}
+
 func (a *App) JoinDefaultChannels(teamId string, user *model.User, shouldBeAdmin bool, userRequestorId string) *model.AppError {
 	var requestor *model.User
 	if userRequestorId != "" {
@@ -43,22 +72,8 @@ func (a *App) JoinDefaultChannels(teamId string, user *model.User, shouldBeAdmin
 		}
 	}
 
-	defaultChannelList := []string{"town-square"}
-
-	if len(a.Config().TeamSettings.ExperimentalDefaultChannels) == 0 {
-		defaultChannelList = append(defaultChannelList, "off-topic")
-	} else {
-		seenChannels := map[string]bool{}
-		for _, channelName := range a.Config().TeamSettings.ExperimentalDefaultChannels {
-			if !seenChannels[channelName] {
-				defaultChannelList = append(defaultChannelList, channelName)
-				seenChannels[channelName] = true
-			}
-		}
-	}
-
 	var err *model.AppError
-	for _, channelName := range defaultChannelList {
+	for _, channelName := range a.DefaultChannelNames() {
 		if result := <-a.Srv.Store.Channel().GetByName(teamId, channelName, true); result.Err != nil {
 			err = result.Err
 		} else {
@@ -1230,8 +1245,16 @@ func (a *App) GetChannelsForUser(teamId string, userId string, includeDeleted bo
 	return result.Data.(*model.ChannelList), nil
 }
 
-func (a *App) GetAllChannels(page, perPage int, includeDeleted bool) (*model.ChannelListWithTeamData, *model.AppError) {
-	result := <-a.Srv.Store.Channel().GetAllChannels(page*perPage, perPage, includeDeleted)
+func (a *App) GetAllChannels(page, perPage int, opts model.ChannelSearchOpts) (*model.ChannelListWithTeamData, *model.AppError) {
+	if opts.ExcludeDefaultChannels {
+		opts.ExcludeChannelNames = a.DefaultChannelNames()
+	}
+	storeOpts := store.ChannelSearchOpts{
+		ExcludeChannelNames:  opts.ExcludeChannelNames,
+		NotAssociatedToGroup: opts.NotAssociatedToGroup,
+		IncludeDeleted:       opts.IncludeDeleted,
+	}
+	result := <-a.Srv.Store.Channel().GetAllChannels(page*perPage, perPage, storeOpts)
 	if result.Err != nil {
 		return nil, result.Err
 	}
@@ -1784,8 +1807,17 @@ func (a *App) AutocompleteChannelsForSearch(teamId string, userId string, term s
 	return result.Data.(*model.ChannelList), nil
 }
 
-func (a *App) SearchAllChannels(term string, includeDeleted bool) (*model.ChannelListWithTeamData, *model.AppError) {
-	result := <-a.Srv.Store.Channel().SearchAllChannels(term, *a.Config().TeamSettings.ExperimentalViewArchivedChannels && includeDeleted)
+func (a *App) SearchAllChannels(term string, opts model.ChannelSearchOpts) (*model.ChannelListWithTeamData, *model.AppError) {
+	opts.IncludeDeleted = *a.Config().TeamSettings.ExperimentalViewArchivedChannels && opts.IncludeDeleted
+	if opts.ExcludeDefaultChannels {
+		opts.ExcludeChannelNames = a.DefaultChannelNames()
+	}
+	storeOpts := store.ChannelSearchOpts{
+		ExcludeChannelNames:  opts.ExcludeChannelNames,
+		NotAssociatedToGroup: opts.NotAssociatedToGroup,
+		IncludeDeleted:       opts.IncludeDeleted,
+	}
+	result := <-a.Srv.Store.Channel().SearchAllChannels(term, storeOpts)
 	if result.Err != nil {
 		return nil, result.Err
 	}

app/channel_test.go

@@ -895,3 +895,20 @@ func TestUpdateChannelMemberRolesChangingGuest(t *testing.T) {
 		}
 	})
 }
+
+func TestDefaultChannelNames(t *testing.T) {
+	th := Setup(t)
+	defer th.TearDown()
+
+	actual := th.App.DefaultChannelNames()
+	expect := []string{"town-square", "off-topic"}
+	require.ElementsMatch(t, expect, actual)
+
+	th.App.UpdateConfig(func(cfg *model.Config) {
+		cfg.TeamSettings.ExperimentalDefaultChannels = []string{"foo", "bar"}
+	})
+
+	actual = th.App.DefaultChannelNames()
+	expect = []string{"town-square", "foo", "bar"}
+	require.ElementsMatch(t, expect, actual)
+}

i18n/en.json

@@ -5274,6 +5274,10 @@
     "id": "store.select_error",
     "translation": "select error"
   },
+  {
+    "id": "store.sql.build_query.app_error",
+    "translation": "failed to build query"
+  },
   {
     "id": "store.sql.convert_string_array",
     "translation": "FromDb: Unable to convert StringArray to *string"

model/channel.go

@@ -80,6 +80,20 @@ type DirectChannelForExport struct {
 	Members *[]string
 }
 
+// ChannelSearchOpts contains options for searching channels.
+//
+// NotAssociatedToGroup will exclude channels that have associated, active GroupChannels records.
+// ExcludeDefaultChannels will exclude the configured default channels (ex 'town-square' and 'off-topic').
+// IncludeDeleted will include channel records where DeleteAt != 0.
+// ExcludeChannelNames will exclude channels from the results by name.
+//
+type ChannelSearchOpts struct {
+	NotAssociatedToGroup   string
+	ExcludeDefaultChannels bool
+	IncludeDeleted         bool
+	ExcludeChannelNames    []string
+}
+
 func (o *Channel) DeepCopy() *Channel {
 	copy := *o
 	if copy.SchemeId != nil {

model/channel_search.go

@@ -11,7 +11,9 @@ import (
 const CHANNEL_SEARCH_DEFAULT_LIMIT = 50
 
 type ChannelSearch struct {
-	Term string `json:"term"`
+	Term                   string `json:"term"`
+	ExcludeDefaultChannels bool   `json:"exclude_default_channels"`
+	NotAssociatedToGroup   string `json:"not_associated_to_group"`
 }
 
 // ToJson convert a Channel to a json string

store/sqlstore/channel_store.go

@@ -949,17 +949,37 @@ func (s SqlChannelStore) GetChannels(teamId string, userId string, includeDelete
 	})
 }
 
-func (s SqlChannelStore) GetAllChannels(offset int, limit int, includeDeleted bool) store.StoreChannel {
+func (s SqlChannelStore) GetAllChannels(offset int, limit int, opts store.ChannelSearchOpts) store.StoreChannel {
 	return store.Do(func(result *store.StoreResult) {
-		deleteFilter := "AND c.DeleteAt = 0"
-		if includeDeleted {
-			deleteFilter = ""
+		query := s.getQueryBuilder().
+			Select("c.*, Teams.DisplayName AS TeamDisplayName, Teams.Name AS TeamName, Teams.UpdateAt AS TeamUpdateAt").
+			From("Channels AS c").
+			Join("Teams ON Teams.Id = c.TeamId").
+			Where(sq.Eq{"c.Type": []string{model.CHANNEL_PRIVATE, model.CHANNEL_OPEN}}).
+			OrderBy("c.DisplayName, Teams.DisplayName").
+			Limit(uint64(limit)).
+			Offset(uint64(offset))
+
+		if !opts.IncludeDeleted {
+			query = query.Where(sq.Eq{"c.DeleteAt": int(0)})
 		}
 
-		query := "SELECT c.*, Teams.DisplayName AS TeamDisplayName, Teams.Name AS TeamName, Teams.UpdateAt as TeamUpdateAt FROM Channels AS c JOIN Teams ON Teams.Id = c.TeamId WHERE (c.Type = 'P' OR c.Type = 'O') " + deleteFilter + " ORDER BY c.DisplayName, Teams.DisplayName LIMIT :Limit OFFSET :Offset"
+		if len(opts.NotAssociatedToGroup) > 0 {
+			query = query.Where("c.Id NOT IN (SELECT ChannelId FROM GroupChannels WHERE GroupChannels.GroupId = ? AND GroupChannels.DeleteAt = 0)", opts.NotAssociatedToGroup)
+		}
+
+		if len(opts.ExcludeChannelNames) > 0 {
+			query = query.Where(fmt.Sprintf("c.Name NOT IN ('%s')", strings.Join(opts.ExcludeChannelNames, "', '")))
+		}
+
+		queryString, args, err := query.ToSql()
+		if err != nil {
+			result.Err = model.NewAppError("SqlChannelStore.GetAllChannels", "store.sql.build_query.app_error", nil, err.Error(), http.StatusInternalServerError)
+			return
+		}
 
 		data := &model.ChannelListWithTeamData{}
-		_, err := s.GetReplica().Select(data, query, map[string]interface{}{"Limit": limit, "Offset": offset})
+		_, err = s.GetReplica().Select(data, queryString, args...)
 
 		if err != nil {
 			result.Err = model.NewAppError("SqlChannelStore.GetAllChannels", "store.sql_channel.get_all_channels.get.app_error", nil, err.Error(), http.StatusInternalServerError)
@@ -2120,29 +2140,45 @@ func (s SqlChannelStore) SearchInTeam(teamId string, term string, includeDeleted
 	})
 }
 
-func (s SqlChannelStore) SearchAllChannels(term string, includeDeleted bool) store.StoreChannel {
+func (s SqlChannelStore) SearchAllChannels(term string, opts store.ChannelSearchOpts) store.StoreChannel {
 	return store.Do(func(result *store.StoreResult) {
-		parameters := map[string]interface{}{}
-		deleteFilter := "AND c.DeleteAt = 0"
-		if includeDeleted {
-			deleteFilter = ""
+		query := s.getQueryBuilder().
+			Select("c.*, t.DisplayName AS TeamDisplayName, t.Name AS TeamName, t.UpdateAt as TeamUpdateAt").
+			From("Channels AS c").
+			Join("Teams AS t ON t.Id = c.TeamId").
+			Where(sq.Eq{"c.Type": []string{model.CHANNEL_PRIVATE, model.CHANNEL_OPEN}}).
+			OrderBy("c.DisplayName, t.DisplayName").
+			Limit(uint64(100))
+
+		if !opts.IncludeDeleted {
+			query = query.Where(sq.Eq{"c.DeleteAt": int(0)})
 		}
-		searchQuery := `SELECT c.*, t.DisplayName AS TeamDisplayName, t.Name AS TeamName, t.UpdateAt as TeamUpdateAt FROM Channels AS c JOIN Teams AS t ON t.Id = c.TeamId WHERE (c.Type = 'P' OR c.Type = 'O') ` + deleteFilter + ` SEARCH_CLAUSE ORDER BY c.DisplayName, t.DisplayName LIMIT 100`
 
 		likeClause, likeTerm := s.buildLIKEClause(term, "c.Name, c.DisplayName, c.Purpose")
-		if likeTerm == "" {
-			// If the likeTerm is empty after preparing, then don't bother searching.
-			searchQuery = strings.Replace(searchQuery, "SEARCH_CLAUSE", "", 1)
-		} else {
-			parameters["LikeTerm"] = likeTerm
+		if len(likeTerm) > 0 {
+			likeClause = strings.ReplaceAll(likeClause, ":LikeTerm", "'"+likeTerm+"'")
 			fulltextClause, fulltextTerm := s.buildFulltextClause(term, "c.Name, c.DisplayName, c.Purpose")
-			parameters["FulltextTerm"] = fulltextTerm
-			searchQuery = strings.Replace(searchQuery, "SEARCH_CLAUSE", "AND ("+likeClause+" OR "+fulltextClause+")", 1)
+			fulltextClause = strings.ReplaceAll(fulltextClause, ":FulltextTerm", "'"+fulltextTerm+"'")
+			query = query.Where("(" + likeClause + " OR " + fulltextClause + ")")
+		}
+
+		if len(opts.ExcludeChannelNames) > 0 {
+			query = query.Where(fmt.Sprintf("c.Name NOT IN ('%s')", strings.Join(opts.ExcludeChannelNames, "', '")))
+		}
+
+		if len(opts.NotAssociatedToGroup) > 0 {
+			query = query.Where("c.Id NOT IN (SELECT ChannelId FROM GroupChannels WHERE GroupChannels.GroupId = ? AND GroupChannels.DeleteAt = 0)", opts.NotAssociatedToGroup)
+		}
+
+		queryString, args, err := query.ToSql()
+		if err != nil {
+			result.Err = model.NewAppError("SqlChannelStore.SearchAllChannels", "store.sql.build_query.app_error", nil, err.Error(), http.StatusInternalServerError)
+			return
 		}
 
 		var channels model.ChannelListWithTeamData
 
-		if _, err := s.GetReplica().Select(&channels, searchQuery, parameters); err != nil {
+		if _, err := s.GetReplica().Select(&channels, queryString, args...); err != nil {
 			result.Err = model.NewAppError("SqlChannelStore.Search", "store.sql_channel.search.app_error", nil, "term="+term+", "+", "+err.Error(), http.StatusInternalServerError)
 		}
 
@@ -2501,7 +2537,7 @@ func (s SqlChannelStore) GetAllChannelsForExportAfter(limit int, afterId string)
 				Id
 			LIMIT :Limit`,
 			map[string]interface{}{"AfterId": afterId, "Limit": limit}); err != nil {
-			result.Err = model.NewAppError("SqlTeamStore.GetAllChannelsForExportAfter", "store.sql_channel.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
+			result.Err = model.NewAppError("SqlChannelStore.GetAllChannelsForExportAfter", "store.sql_channel.get_all.app_error", nil, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -2561,12 +2597,12 @@ func (s SqlChannelStore) GetAllDirectChannelsForExportAfter(limit int, afterId s
 
 		queryString, args, err := query.ToSql()
 		if err != nil {
-			result.Err = model.NewAppError("SqlTeamStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
+			result.Err = model.NewAppError("SqlChannelStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
 		if _, err = s.GetReplica().Select(&directChannelsForExport, queryString, args...); err != nil {
-			result.Err = model.NewAppError("SqlTeamStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
+			result.Err = model.NewAppError("SqlChannelStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
@@ -2585,13 +2621,13 @@ func (s SqlChannelStore) GetAllDirectChannelsForExportAfter(limit int, afterId s
 
 		queryString, args, err = query.ToSql()
 		if err != nil {
-			result.Err = model.NewAppError("SqlTeamStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
+			result.Err = model.NewAppError("SqlChannelStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
 			return
 		}
 
 		var channelMembers []*model.ChannelMemberForExport
 		if _, err := s.GetReplica().Select(&channelMembers, queryString, args...); err != nil {
-			result.Err = model.NewAppError("SqlTeamStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
+			result.Err = model.NewAppError("SqlChannelStore.GetAllDirectChannelsForExportAfter", "store.sql_channel.get_all_direct.app_error", nil, err.Error(), http.StatusInternalServerError)
 		}
 
 		// Populate each channel with its members

store/store.go

@@ -148,7 +148,7 @@ type ChannelStore interface {
 	GetDeletedByName(team_id string, name string) StoreChannel
 	GetDeleted(team_id string, offset int, limit int) StoreChannel
 	GetChannels(teamId string, userId string, includeDeleted bool) StoreChannel
-	GetAllChannels(page, perPage int, includeDeleted bool) StoreChannel
+	GetAllChannels(page, perPage int, opts ChannelSearchOpts) StoreChannel
 	GetMoreChannels(teamId string, userId string, offset int, limit int) StoreChannel
 	GetPublicChannelsForTeam(teamId string, offset int, limit int) StoreChannel
 	GetPublicChannelsByIdsForTeam(teamId string, channelIds []string) StoreChannel
@@ -182,7 +182,7 @@ type ChannelStore interface {
 	GetMembersForUserWithPagination(teamId, userId string, page, perPage int) StoreChannel
 	AutocompleteInTeam(teamId string, term string, includeDeleted bool) StoreChannel
 	AutocompleteInTeamForSearch(teamId string, userId string, term string, includeDeleted bool) StoreChannel
-	SearchAllChannels(term string, includeDeleted bool) StoreChannel
+	SearchAllChannels(term string, opts ChannelSearchOpts) StoreChannel
 	SearchInTeam(teamId string, term string, includeDeleted bool) StoreChannel
 	SearchMore(userId string, teamId string, term string) StoreChannel
 	GetMembersByIds(channelId string, userIds []string) StoreChannel
@@ -607,3 +607,15 @@ type LinkMetadataStore interface {
 	Save(linkMetadata *model.LinkMetadata) StoreChannel
 	Get(url string, timestamp int64) StoreChannel
 }
+
+// ChannelSearchOpts contains options for searching channels.
+//
+// NotAssociatedToGroup will exclude channels that have associated, active GroupChannels records.
+// IncludeDeleted will include channel records where DeleteAt != 0.
+// ExcludeChannelNames will exclude channels from the results by name.
+//
+type ChannelSearchOpts struct {
+	NotAssociatedToGroup string
+	IncludeDeleted       bool
+	ExcludeChannelNames  []string
+}

store/storetest/channel_store.go

@@ -23,9 +23,9 @@ type SqlSupplier interface {
 }
 
 func cleanupChannels(t *testing.T, ss store.Store) {
-	result := <-ss.Channel().GetAllChannels(0, 100000, true)
+	result := <-ss.Channel().GetAllChannels(0, 100000, store.ChannelSearchOpts{IncludeDeleted: true})
 	if result.Err != nil {
-		t.Fatal("error cleaning all channels")
+		t.Fatalf("error cleaning all channels: %v", result.Err)
 	}
 	list := result.Data.(*model.ChannelListWithTeamData)
 	for _, channel := range *list {
@@ -1073,6 +1073,15 @@ func testChannelStoreGetAllChannels(t *testing.T, ss store.Store, s SqlSupplier)
 	c1.Type = model.CHANNEL_OPEN
 	store.Must(ss.Channel().Save(&c1, -1))
 
+	group := &model.Group{
+		Name:        model.NewId(),
+		DisplayName: model.NewId(),
+		Source:      model.GroupSourceLdap,
+		RemoteId:    model.NewId(),
+	}
+	store.Must(ss.Group().Create(group))
+	store.Must(ss.Group().CreateGroupSyncable(model.NewGroupChannel(group.Id, c1.Id, true)))
+
 	c2 := model.Channel{}
 	c2.TeamId = t1.Id
 	c2.DisplayName = "Channel2" + model.NewId()
@@ -1103,7 +1112,7 @@ func testChannelStoreGetAllChannels(t *testing.T, ss store.Store, s SqlSupplier)
 	c5.Type = model.CHANNEL_GROUP
 	store.Must(ss.Channel().Save(&c5, -1))
 
-	cresult := <-ss.Channel().GetAllChannels(0, 10, false)
+	cresult := <-ss.Channel().GetAllChannels(0, 10, store.ChannelSearchOpts{})
 	list := cresult.Data.(*model.ChannelListWithTeamData)
 	assert.Len(t, *list, 2)
 	assert.Equal(t, (*list)[0].Id, c1.Id)
@@ -1111,7 +1120,7 @@ func testChannelStoreGetAllChannels(t *testing.T, ss store.Store, s SqlSupplier)
 	assert.Equal(t, (*list)[1].Id, c3.Id)
 	assert.Equal(t, (*list)[1].TeamDisplayName, "Name2")
 
-	cresult = <-ss.Channel().GetAllChannels(0, 10, true)
+	cresult = <-ss.Channel().GetAllChannels(0, 10, store.ChannelSearchOpts{IncludeDeleted: true})
 	list = cresult.Data.(*model.ChannelListWithTeamData)
 	assert.Len(t, *list, 3)
 	assert.Equal(t, (*list)[0].Id, c1.Id)
@@ -1119,12 +1128,22 @@ func testChannelStoreGetAllChannels(t *testing.T, ss store.Store, s SqlSupplier)
 	assert.Equal(t, (*list)[1].Id, c2.Id)
 	assert.Equal(t, (*list)[2].Id, c3.Id)
 
-	cresult = <-ss.Channel().GetAllChannels(0, 1, true)
+	cresult = <-ss.Channel().GetAllChannels(0, 1, store.ChannelSearchOpts{IncludeDeleted: true})
 	list = cresult.Data.(*model.ChannelListWithTeamData)
 	assert.Len(t, *list, 1)
 	assert.Equal(t, (*list)[0].Id, c1.Id)
 	assert.Equal(t, (*list)[0].TeamDisplayName, "Name")
 
+	// Not associated to group
+	cresult = <-ss.Channel().GetAllChannels(0, 10, store.ChannelSearchOpts{NotAssociatedToGroup: group.Id})
+	list = cresult.Data.(*model.ChannelListWithTeamData)
+	assert.Len(t, *list, 1)
+
+	// Exclude channel names
+	cresult = <-ss.Channel().GetAllChannels(0, 10, store.ChannelSearchOpts{ExcludeChannelNames: []string{c1.Name}})
+	list = cresult.Data.(*model.ChannelListWithTeamData)
+	assert.Len(t, *list, 1)
+
 	// Manually truncate Channels table until testlib can handle cleanups
 	s.GetMaster().Exec("TRUNCATE Channels")
 }
@@ -2325,6 +2344,15 @@ func testChannelStoreSearchAllChannels(t *testing.T, ss store.Store) {
 	}
 	store.Must(ss.Channel().Save(&o7, -1))
 
+	group := &model.Group{
+		Name:        model.NewId(),
+		DisplayName: model.NewId(),
+		Source:      model.GroupSourceLdap,
+		RemoteId:    model.NewId(),
+	}
+	store.Must(ss.Group().Create(group))
+	store.Must(ss.Group().CreateGroupSyncable(model.NewGroupChannel(group.Id, o7.Id, true)))
+
 	o8 := model.Channel{
 		TeamId:      t1.Id,
 		DisplayName: "Off-Limit",
@@ -2381,28 +2409,31 @@ func testChannelStoreSearchAllChannels(t *testing.T, ss store.Store) {
 	testCases := []struct {
 		Description     string
 		Term            string
-		IncludeDeleted  bool
+		Opts            store.ChannelSearchOpts
 		ExpectedResults *model.ChannelList
 	}{
-		{"ChannelA", "ChannelA", false, &model.ChannelList{&o1, &o2, &o3}},
-		{"ChannelA, include deleted", "ChannelA", true, &model.ChannelList{&o1, &o2, &o3, &o13}},
-		{"empty string", "", false, &model.ChannelList{&o1, &o2, &o3, &o4, &o5, &o12, &o11, &o8, &o7, &o6, &o10, &o9}},
-		{"no matches", "blargh", false, &model.ChannelList{}},
-		{"prefix", "off-", false, &model.ChannelList{&o8, &o7, &o6}},
-		{"full match with dash", "off-topic", false, &model.ChannelList{&o6}},
-		{"town square", "town square", false, &model.ChannelList{&o9}},
-		{"the in name", "the", false, &model.ChannelList{&o10}},
-		{"Mobile", "Mobile", false, &model.ChannelList{&o11}},
-		{"search purpose", "now searchable", false, &model.ChannelList{&o12}},
-		{"pipe ignored", "town square |", false, &model.ChannelList{&o9}},
+		{"ChannelA", "ChannelA", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o1, &o2, &o3}},
+		{"ChannelA, include deleted", "ChannelA", store.ChannelSearchOpts{IncludeDeleted: true}, &model.ChannelList{&o1, &o2, &o3, &o13}},
+		{"empty string", "", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o1, &o2, &o3, &o4, &o5, &o12, &o11, &o8, &o7, &o6, &o10, &o9}},
+		{"no matches", "blargh", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{}},
+		{"prefix", "off-", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o8, &o7, &o6}},
+		{"full match with dash", "off-topic", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o6}},
+		{"town square", "town square", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o9}},
+		{"the in name", "the", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o10}},
+		{"Mobile", "Mobile", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o11}},
+		{"search purpose", "now searchable", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o12}},
+		{"pipe ignored", "town square |", store.ChannelSearchOpts{IncludeDeleted: false}, &model.ChannelList{&o9}},
+		{"exclude defaults search 'off'", "off-", store.ChannelSearchOpts{IncludeDeleted: false, ExcludeChannelNames: []string{"off-topic"}}, &model.ChannelList{&o8, &o7}},
+		{"exclude defaults search 'town'", "town", store.ChannelSearchOpts{IncludeDeleted: false, ExcludeChannelNames: []string{"town-square"}}, &model.ChannelList{}},
+		{"exclude by group association", "off", store.ChannelSearchOpts{IncludeDeleted: false, NotAssociatedToGroup: group.Id}, &model.ChannelList{&o8, &o6}},
 	}
 
 	for _, testCase := range testCases {
 		t.Run(testCase.Description, func(t *testing.T) {
-			result := <-ss.Channel().SearchAllChannels(testCase.Term, testCase.IncludeDeleted)
+			result := <-ss.Channel().SearchAllChannels(testCase.Term, testCase.Opts)
 			require.Nil(t, result.Err)
 			channels := result.Data.(*model.ChannelListWithTeamData)
-			require.Equal(t, len(*channels), len(*testCase.ExpectedResults))
+			require.Equal(t, len(*testCase.ExpectedResults), len(*channels))
 			for i, expected := range *testCase.ExpectedResults {
 				require.Equal(t, (*channels)[i].Id, expected.Id)
 			}

store/storetest/mocks/ChannelStore.go

@@ -212,13 +212,13 @@ func (_m *ChannelStore) GetAllChannelMembersNotifyPropsForChannel(channelId stri
 	return r0
 }
 
-// GetAllChannels provides a mock function with given fields: page, perPage, includeDeleted
-func (_m *ChannelStore) GetAllChannels(page int, perPage int, includeDeleted bool) store.StoreChannel {
-	ret := _m.Called(page, perPage, includeDeleted)
+// GetAllChannels provides a mock function with given fields: page, perPage, opts
+func (_m *ChannelStore) GetAllChannels(page int, perPage int, opts store.ChannelSearchOpts) store.StoreChannel {
+	ret := _m.Called(page, perPage, opts)
 
 	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(int, int, bool) store.StoreChannel); ok {
-		r0 = rf(page, perPage, includeDeleted)
+	if rf, ok := ret.Get(0).(func(int, int, store.ChannelSearchOpts) store.StoreChannel); ok {
+		r0 = rf(page, perPage, opts)
 	} else {
 		if ret.Get(0) != nil {
 			r0 = ret.Get(0).(store.StoreChannel)
@@ -1003,13 +1003,13 @@ func (_m *ChannelStore) SaveMember(member *model.ChannelMember) store.StoreChann
 	return r0
 }
 
-// SearchAllChannels provides a mock function with given fields: term, includeDeleted
-func (_m *ChannelStore) SearchAllChannels(term string, includeDeleted bool) store.StoreChannel {
-	ret := _m.Called(term, includeDeleted)
+// SearchAllChannels provides a mock function with given fields: term, opts
+func (_m *ChannelStore) SearchAllChannels(term string, opts store.ChannelSearchOpts) store.StoreChannel {
+	ret := _m.Called(term, opts)
 
 	var r0 store.StoreChannel
-	if rf, ok := ret.Get(0).(func(string, bool) store.StoreChannel); ok {
-		r0 = rf(term, includeDeleted)
+	if rf, ok := ret.Get(0).(func(string, store.ChannelSearchOpts) store.StoreChannel); ok {
+		r0 = rf(term, opts)
 	} else {
 		if ret.Get(0) != nil {
 			r0 = ret.Get(0).(store.StoreChannel)

web/params.go

@@ -66,6 +66,8 @@ type Params struct {
 	NotAssociatedToChannel string
 	Paginate               *bool
 	IncludeMemberCount     bool
+	NotAssociatedToGroup   string
+	ExcludeDefaultChannels bool
 }
 
 func ParamsFromRequest(r *http.Request) *Params {
@@ -260,5 +262,11 @@ func ParamsFromRequest(r *http.Request) *Params {
 		params.IncludeMemberCount = val
 	}
 
+	params.NotAssociatedToGroup = query.Get("not_associated_to_group")
+
+	if val, err := strconv.ParseBool(query.Get("exclude_default_channels")); err == nil {
+		params.ExcludeDefaultChannels = val
+	}
+
 	return params
 }