internal/app/chatlists/service.go
Rama main · réplica de lectura del repositorio original.
package chatlists
import (
"context"
"crypto/rand"
"encoding/base64"
"errors"
"fmt"
"unicode/utf8"
"telesrv/internal/domain"
"telesrv/internal/links"
"telesrv/internal/store"
)
type Service struct {
chatlists store.ChatlistStore
dialogs store.DialogStore
channels ChannelService
premium PremiumChecker
newSlug func() (string, error)
}
type Option func(*Service)
// ChannelService is the domain-only channel dependency used for shared-folder
// peer membership side effects.
type ChannelService interface {
GetChannel(ctx context.Context, userID, channelID int64) (domain.ChannelView, error)
InviteToChannel(ctx context.Context, userID, channelID int64, userIDs []int64, date int) (domain.CreateChannelResult, error)
JoinChannel(ctx context.Context, userID, channelID int64, date int) (domain.CreateChannelResult, error)
LeaveChannel(ctx context.Context, userID, channelID int64, date int) (domain.CreateChannelResult, error)
}
type PremiumChecker func(ctx context.Context, userID int64) bool
func WithChannels(channels ChannelService) Option {
return func(s *Service) {
s.channels = channels
}
}
func WithPremiumChecker(fn PremiumChecker) Option {
return func(s *Service) {
s.premium = fn
}
}
func WithSlugGenerator(fn func() (string, error)) Option {
return func(s *Service) {
if fn != nil {
s.newSlug = fn
}
}
}
func NewService(chatlists store.ChatlistStore, dialogs store.DialogStore, opts ...Option) *Service {
s := &Service{
chatlists: chatlists,
dialogs: dialogs,
newSlug: randomChatlistSlug,
}
for _, opt := range opts {
opt(s)
}
return s
}
func (s *Service) ExportInvite(ctx context.Context, userID int64, filterID int, title string, peers []domain.DialogFolderPeer, date int) (domain.DialogFolder, domain.ChatlistInvite, error) {
if err := validateChatlistUserFilter(userID, filterID); err != nil {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if utf8.RuneCountInString(title) > domain.MaxDialogFolderTitleRunes {
return domain.DialogFolder{}, domain.ChatlistInvite{}, domain.ErrChatlistInvalid
}
folder, err := s.ownerFolder(ctx, userID, filterID)
if err != nil {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if !folderShareable(folder) {
return domain.DialogFolder{}, domain.ChatlistInvite{}, domain.ErrChatlistNotShareable
}
selected, err := selectChatlistPeers(folder, peers, true)
if err != nil {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if err := s.validateShareableChannelPeers(ctx, userID, selected); err != nil {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
count, err := s.chatlists.CountActiveInvites(ctx, userID, filterID)
if err != nil {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if count >= s.invitesLimit(ctx, userID) {
return domain.DialogFolder{}, domain.ChatlistInvite{}, domain.ErrChatlistInvitesTooMuch
}
folder = exportedChatlistFolder(folder, true)
var lastErr error
for i := 0; i < 8; i++ {
slug, err := s.newSlug()
if err != nil {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
invite := domain.ChatlistInvite{
OwnerUserID: userID,
FilterID: filterID,
Slug: slug,
Title: title,
Peers: selected,
Date: date,
}
saved, err := s.chatlists.SaveInvite(ctx, invite)
if err == nil {
if err := s.dialogs.UpsertFolder(ctx, userID, folder); err != nil {
rollbackErr := s.deleteInviteIfSaved(ctx, userID, filterID, saved.Slug)
return domain.DialogFolder{}, domain.ChatlistInvite{}, errors.Join(fmt.Errorf("save exported chatlist folder: %w", err), rollbackErr)
}
return folder, saved, nil
}
if !errors.Is(err, domain.ErrChatlistSlugOccupied) {
return domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
lastErr = err
}
if lastErr == nil {
lastErr = domain.ErrChatlistSlugOccupied
}
return domain.DialogFolder{}, domain.ChatlistInvite{}, lastErr
}
func (s *Service) ListInvites(ctx context.Context, userID int64, filterID int) ([]domain.ChatlistInvite, error) {
if err := validateChatlistUserFilter(userID, filterID); err != nil {
return nil, err
}
if _, err := s.ownerFolder(ctx, userID, filterID); err != nil {
return nil, err
}
return s.chatlists.ListInvites(ctx, userID, filterID)
}
func (s *Service) EditInvite(ctx context.Context, userID int64, filterID int, slug string, title *string, peers *[]domain.DialogFolderPeer, revoke bool) (domain.ChatlistInvite, error) {
if err := validateChatlistUserFilter(userID, filterID); err != nil {
return domain.ChatlistInvite{}, err
}
slug = CleanSlug(slug)
if !links.ValidChatlistSlug(slug) {
return domain.ChatlistInvite{}, domain.ErrChatlistInviteInvalid
}
folder, err := s.ownerFolder(ctx, userID, filterID)
if err != nil {
return domain.ChatlistInvite{}, err
}
existing, found, err := s.chatlists.GetInvite(ctx, userID, filterID, slug)
if err != nil {
return domain.ChatlistInvite{}, err
}
if !found {
return domain.ChatlistInvite{}, domain.ErrChatlistInviteExpired
}
if title != nil {
if utf8.RuneCountInString(*title) > domain.MaxDialogFolderTitleRunes {
return domain.ChatlistInvite{}, domain.ErrChatlistInvalid
}
existing.Title = *title
}
if peers != nil {
selected, err := selectChatlistPeers(folder, *peers, true)
if err != nil {
return domain.ChatlistInvite{}, err
}
if err := s.validateShareableChannelPeers(ctx, userID, selected); err != nil {
return domain.ChatlistInvite{}, err
}
existing.Peers = selected
}
if revoke {
existing.Revoked = true
}
return s.chatlists.SaveInvite(ctx, existing)
}
func (s *Service) DeleteInvite(ctx context.Context, userID int64, filterID int, slug string) (domain.DialogFolder, bool, error) {
if err := validateChatlistUserFilter(userID, filterID); err != nil {
return domain.DialogFolder{}, false, err
}
slug = CleanSlug(slug)
if !links.ValidChatlistSlug(slug) {
return domain.DialogFolder{}, false, domain.ErrChatlistInviteInvalid
}
folder, err := s.ownerFolder(ctx, userID, filterID)
if err != nil {
return domain.DialogFolder{}, false, err
}
deleted, err := s.chatlists.DeleteInvite(ctx, userID, filterID, slug)
if err != nil || !deleted {
return domain.DialogFolder{}, false, err
}
count, err := s.chatlists.CountInvites(ctx, userID, filterID)
if err != nil {
return domain.DialogFolder{}, false, err
}
if count > 0 || !folder.HasMyInvites {
return domain.DialogFolder{}, false, nil
}
folder = exportedChatlistFolder(folder, false)
if err := s.dialogs.UpsertFolder(ctx, userID, folder); err != nil {
return domain.DialogFolder{}, false, fmt.Errorf("clear exported chatlist folder flag: %w", err)
}
return folder, true, nil
}
func (s *Service) CheckInvite(ctx context.Context, userID int64, slug string) (domain.ChatlistInvitePreview, error) {
if userID == 0 {
return domain.ChatlistInvitePreview{}, domain.ErrChatlistInvalid
}
slug = CleanSlug(slug)
if !links.ValidChatlistSlug(slug) {
return domain.ChatlistInvitePreview{}, domain.ErrChatlistInviteInvalid
}
invite, folder, err := s.inviteWithFolder(ctx, slug)
if err != nil {
return domain.ChatlistInvitePreview{}, err
}
out := domain.ChatlistInvitePreview{Invite: invite, OwnerFolder: folder}
if userID == invite.OwnerUserID {
ownerFolder := exportedChatlistFolder(folder, true)
out.LocalFolder = &ownerFolder
out.Already = peersIntersection(invite.Peers, folderPeers(ownerFolder))
return out, nil
}
membership, found, err := s.chatlists.GetMembershipBySlug(ctx, userID, slug)
if err != nil {
return domain.ChatlistInvitePreview{}, err
}
if !found {
out.Missing = cloneFolderPeers(invite.Peers)
return out, nil
}
local, found, err := s.dialogs.GetFolder(ctx, userID, membership.LocalFilterID)
if err != nil {
return domain.ChatlistInvitePreview{}, err
}
if !found {
return domain.ChatlistInvitePreview{}, domain.ErrChatlistInvalid
}
out.Membership = &membership
out.LocalFolder = &local
out.Already = peersIntersection(invite.Peers, folderPeers(local))
out.Missing = peersDifference(invite.Peers, folderPeers(local))
return out, nil
}
func (s *Service) JoinInvite(ctx context.Context, userID int64, slug string, peers []domain.DialogFolderPeer, date int) (domain.ChatlistJoinResult, error) {
if userID == 0 {
return domain.ChatlistJoinResult{}, domain.ErrChatlistInvalid
}
slug = CleanSlug(slug)
if !links.ValidChatlistSlug(slug) {
return domain.ChatlistJoinResult{}, domain.ErrChatlistInviteInvalid
}
invite, ownerFolder, err := s.inviteWithFolder(ctx, slug)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
if userID == invite.OwnerUserID {
return domain.ChatlistJoinResult{Folder: exportedChatlistFolder(ownerFolder, true), Date: date}, nil
}
if existing, found, err := s.chatlists.GetMembershipBySlug(ctx, userID, slug); err != nil {
return domain.ChatlistJoinResult{}, err
} else if found {
folder, found, err := s.dialogs.GetFolder(ctx, userID, existing.LocalFilterID)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
if !found {
return domain.ChatlistJoinResult{}, domain.ErrChatlistInvalid
}
return domain.ChatlistJoinResult{Folder: folder, Membership: existing, Date: date}, nil
}
selected, err := selectInvitePeers(invite, peers, true)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
count, err := s.chatlists.CountMemberships(ctx, userID)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
if count >= s.joinedLimit(ctx, userID) {
return domain.ChatlistJoinResult{}, domain.ErrChatlistsTooMuch
}
channelResults, err := s.joinChannelPeers(ctx, invite.OwnerUserID, userID, selected, date)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
filterID, err := s.nextLocalFilterID(ctx, userID)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
folder := importedChatlistFolder(ownerFolder, filterID, selected)
membership := domain.ChatlistMembership{
UserID: userID,
LocalFilterID: filterID,
OwnerUserID: invite.OwnerUserID,
OwnerFilterID: invite.FilterID,
Slug: invite.Slug,
Date: date,
}
if err := s.dialogs.UpsertFolder(ctx, userID, folder); err != nil {
if rollbackErr := s.leaveJoinedChannelResults(ctx, userID, channelResults, date); rollbackErr != nil {
return domain.ChatlistJoinResult{}, errors.Join(fmt.Errorf("save joined chatlist folder: %w", err), rollbackErr)
}
return domain.ChatlistJoinResult{}, fmt.Errorf("save joined chatlist folder: %w", err)
}
if err := s.chatlists.SaveMembership(ctx, membership); err != nil {
rollbackErr := errors.Join(
s.dialogs.DeleteFolder(ctx, userID, filterID),
s.leaveJoinedChannelResults(ctx, userID, channelResults, date),
)
return domain.ChatlistJoinResult{}, errors.Join(err, rollbackErr)
}
return domain.ChatlistJoinResult{Folder: folder, Membership: membership, Date: date, ChannelResults: channelResults}, nil
}
func (s *Service) GetUpdates(ctx context.Context, userID int64, localFilterID int) (domain.ChatlistUpdates, error) {
membership, folder, invite, err := s.memberFolderInvite(ctx, userID, localFilterID)
if err != nil {
if errors.Is(err, domain.ErrChatlistInviteExpired) {
return domain.ChatlistUpdates{Membership: membership}, nil
}
if errors.Is(err, domain.ErrChatlistInvalid) {
if owner, ownerErr := s.ownerFolder(ctx, userID, localFilterID); ownerErr == nil && owner.IsChatlist && owner.HasMyInvites {
return domain.ChatlistUpdates{}, nil
}
}
return domain.ChatlistUpdates{}, err
}
if membership.HiddenUpdates {
return domain.ChatlistUpdates{Membership: membership}, nil
}
return domain.ChatlistUpdates{
Membership: membership,
Missing: peersDifference(invite.Peers, folderPeers(folder)),
}, nil
}
func (s *Service) JoinUpdates(ctx context.Context, userID int64, localFilterID int, peers []domain.DialogFolderPeer, date int) (domain.ChatlistJoinResult, error) {
membership, folder, invite, err := s.memberFolderInvite(ctx, userID, localFilterID)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
selected, err := selectInvitePeers(invite, peers, true)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
if _, err := s.chatlists.SetMembershipHidden(ctx, userID, membership.LocalFilterID, false); err != nil {
return domain.ChatlistJoinResult{}, err
}
channelResults, err := s.joinChannelPeers(ctx, membership.OwnerUserID, userID, selected, date)
if err != nil {
return domain.ChatlistJoinResult{}, err
}
folder.IncludePeers = mergeFolderPeers(folder.IncludePeers, selected)
folder.IsChatlist = true
if err := s.dialogs.UpsertFolder(ctx, userID, folder); err != nil {
if rollbackErr := s.leaveJoinedChannelResults(ctx, userID, channelResults, date); rollbackErr != nil {
return domain.ChatlistJoinResult{}, errors.Join(fmt.Errorf("save chatlist updates: %w", err), rollbackErr)
}
return domain.ChatlistJoinResult{}, fmt.Errorf("save chatlist updates: %w", err)
}
return domain.ChatlistJoinResult{Folder: folder, Membership: membership, ChannelResults: channelResults}, nil
}
func (s *Service) HideUpdates(ctx context.Context, userID int64, localFilterID int) error {
if err := validateChatlistUserFilter(userID, localFilterID); err != nil {
return err
}
if _, found, err := s.chatlists.GetMembershipByLocalFilter(ctx, userID, localFilterID); err != nil {
return err
} else if !found {
return domain.ErrChatlistInvalid
}
_, err := s.chatlists.SetMembershipHidden(ctx, userID, localFilterID, true)
return err
}
func (s *Service) Leave(ctx context.Context, userID int64, localFilterID int, peers []domain.DialogFolderPeer, date int) (domain.ChatlistLeaveResult, error) {
if err := validateChatlistUserFilter(userID, localFilterID); err != nil {
return domain.ChatlistLeaveResult{}, err
}
if _, found, err := s.chatlists.GetMembershipByLocalFilter(ctx, userID, localFilterID); err != nil {
return domain.ChatlistLeaveResult{}, err
} else if !found {
return domain.ChatlistLeaveResult{}, domain.ErrChatlistInvalid
}
folder, found, err := s.dialogs.GetFolder(ctx, userID, localFilterID)
if err != nil {
return domain.ChatlistLeaveResult{}, err
}
if !found {
return domain.ChatlistLeaveResult{}, domain.ErrChatlistInvalid
}
selected, err := selectPeersFromAllowed(folderPeerMap(channelFolderPeers(folderPeers(folder))), peers, false)
if err != nil {
return domain.ChatlistLeaveResult{}, err
}
channelResults, err := s.leaveChannelPeers(ctx, userID, selected, date)
if err != nil {
return domain.ChatlistLeaveResult{}, err
}
if err := s.dialogs.DeleteFolder(ctx, userID, localFilterID); err != nil {
return domain.ChatlistLeaveResult{}, err
}
if _, err := s.chatlists.DeleteMembershipByLocalFilter(ctx, userID, localFilterID); err != nil {
restoreErr := s.dialogs.UpsertFolder(ctx, userID, folder)
return domain.ChatlistLeaveResult{}, errors.Join(err, restoreErr)
}
return domain.ChatlistLeaveResult{FilterID: localFilterID, ChannelResults: channelResults, RequestedLeaves: selected}, nil
}
func (s *Service) LeaveSuggestions(ctx context.Context, userID int64, localFilterID int) ([]domain.DialogFolderPeer, error) {
if err := validateChatlistUserFilter(userID, localFilterID); err != nil {
return nil, err
}
if _, found, err := s.chatlists.GetMembershipByLocalFilter(ctx, userID, localFilterID); err != nil {
return nil, err
} else if !found {
return nil, domain.ErrChatlistInvalid
}
folder, found, err := s.dialogs.GetFolder(ctx, userID, localFilterID)
if err != nil {
return nil, err
}
if !found {
return nil, domain.ErrChatlistInvalid
}
return channelFolderPeers(folderPeers(folder)), nil
}
func (s *Service) ownerFolder(ctx context.Context, userID int64, filterID int) (domain.DialogFolder, error) {
if s == nil || s.chatlists == nil || s.dialogs == nil {
return domain.DialogFolder{}, domain.ErrChatlistInvalid
}
folder, found, err := s.dialogs.GetFolder(ctx, userID, filterID)
if err != nil {
return domain.DialogFolder{}, err
}
if !found {
return domain.DialogFolder{}, domain.ErrChatlistInvalid
}
folder.ID = filterID
return folder, nil
}
func (s *Service) inviteWithFolder(ctx context.Context, slug string) (domain.ChatlistInvite, domain.DialogFolder, error) {
invite, found, err := s.chatlists.GetInviteBySlug(ctx, slug)
if err != nil {
return domain.ChatlistInvite{}, domain.DialogFolder{}, err
}
if !found {
return domain.ChatlistInvite{}, domain.DialogFolder{}, domain.ErrChatlistInviteExpired
}
folder, found, err := s.dialogs.GetFolder(ctx, invite.OwnerUserID, invite.FilterID)
if err != nil {
return domain.ChatlistInvite{}, domain.DialogFolder{}, err
}
if !found {
return domain.ChatlistInvite{}, domain.DialogFolder{}, domain.ErrChatlistInviteExpired
}
return invite, exportedChatlistFolder(folder, true), nil
}
func (s *Service) memberFolderInvite(ctx context.Context, userID int64, localFilterID int) (domain.ChatlistMembership, domain.DialogFolder, domain.ChatlistInvite, error) {
if err := validateChatlistUserFilter(userID, localFilterID); err != nil {
return domain.ChatlistMembership{}, domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
membership, found, err := s.chatlists.GetMembershipByLocalFilter(ctx, userID, localFilterID)
if err != nil {
return domain.ChatlistMembership{}, domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if !found {
return domain.ChatlistMembership{}, domain.DialogFolder{}, domain.ChatlistInvite{}, domain.ErrChatlistInvalid
}
folder, found, err := s.dialogs.GetFolder(ctx, userID, localFilterID)
if err != nil {
return membership, domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if !found {
return membership, domain.DialogFolder{}, domain.ChatlistInvite{}, domain.ErrChatlistInvalid
}
invite, found, err := s.chatlists.GetInviteBySlug(ctx, membership.Slug)
if err != nil {
return membership, domain.DialogFolder{}, domain.ChatlistInvite{}, err
}
if !found {
return membership, folder, domain.ChatlistInvite{}, domain.ErrChatlistInviteExpired
}
return membership, folder, invite, nil
}
func (s *Service) nextLocalFilterID(ctx context.Context, userID int64) (int, error) {
list, err := s.dialogs.ListFolders(ctx, userID)
if err != nil {
return 0, err
}
used := make(map[int]struct{}, len(list.Folders))
for _, folder := range list.Folders {
used[folder.ID] = struct{}{}
}
for id := domain.DialogCustomFolderMinID; id < domain.DialogCustomFolderMinID+domain.MaxDialogFolders; id++ {
if _, ok := used[id]; !ok {
return id, nil
}
}
return 0, domain.ErrChatlistsTooMuch
}
func validateChatlistUserFilter(userID int64, filterID int) error {
if userID == 0 || filterID < domain.DialogCustomFolderMinID {
return domain.ErrChatlistInvalid
}
return nil
}
func folderShareable(folder domain.DialogFolder) bool {
if len(folder.ExcludePeers) > 0 || folder.Contacts || folder.NonContacts || folder.Groups ||
folder.Broadcasts || folder.Bots || folder.ExcludeMuted || folder.ExcludeRead || folder.ExcludeArchived {
return false
}
return len(folder.IncludePeers)+len(folder.PinnedPeers) > 0
}
func (s *Service) validateShareableChannelPeers(ctx context.Context, userID int64, peers []domain.DialogFolderPeer) error {
if len(peers) == 0 {
return domain.ErrChatlistPeersEmpty
}
for _, item := range peers {
if item.Peer.Type != domain.PeerTypeChannel || item.Peer.ID == 0 {
return domain.ErrChatlistNotShareable
}
if s.channels == nil {
continue
}
view, err := s.channels.GetChannel(ctx, userID, item.Peer.ID)
if err != nil {
return err
}
if !channelShareableForChatlist(view) {
return domain.ErrChatlistNotShareable
}
}
return nil
}
func channelShareableForChatlist(view domain.ChannelView) bool {
if view.Channel.Deleted || view.Forbidden {
return false
}
return channelCanInviteForChatlist(view) || channelPublicJoinableForChatlist(view)
}
func channelCanInviteForChatlist(view domain.ChannelView) bool {
switch view.Self.Role {
case domain.ChannelRoleCreator:
return true
case domain.ChannelRoleAdmin:
if view.Self.AdminRights.InviteUsers {
return true
}
}
return false
}
func channelPublicJoinableForChatlist(view domain.ChannelView) bool {
if view.Channel.Deleted || view.Forbidden {
return false
}
return view.Channel.Username != "" && !view.Channel.JoinRequest
}
func (s *Service) joinChannelPeers(ctx context.Context, ownerUserID, userID int64, peers []domain.DialogFolderPeer, date int) ([]domain.CreateChannelResult, error) {
if s.channels == nil {
return nil, nil
}
type joinPlan struct {
peer domain.DialogFolderPeer
useInvite bool
}
channelPeers := channelFolderPeers(peers)
plans := make([]joinPlan, 0, len(channelPeers))
for _, item := range channelPeers {
view, err := s.channels.GetChannel(ctx, ownerUserID, item.Peer.ID)
if err != nil {
return nil, err
}
if !channelShareableForChatlist(view) {
return nil, domain.ErrChatlistNotShareable
}
plans = append(plans, joinPlan{peer: item, useInvite: channelCanInviteForChatlist(view)})
}
results := make([]domain.CreateChannelResult, 0, len(plans))
for _, plan := range plans {
var res domain.CreateChannelResult
var err error
if plan.useInvite {
res, err = s.channels.InviteToChannel(ctx, ownerUserID, plan.peer.Peer.ID, []int64{userID}, date)
} else {
res, err = s.channels.JoinChannel(ctx, userID, plan.peer.Peer.ID, date)
}
if err != nil {
if errors.Is(err, domain.ErrUserAlreadyParticipant) {
continue
}
return results, err
}
results = append(results, res)
}
return results, nil
}
func (s *Service) leaveChannelPeers(ctx context.Context, userID int64, peers []domain.DialogFolderPeer, date int) ([]domain.CreateChannelResult, error) {
if s.channels == nil {
return nil, nil
}
results := make([]domain.CreateChannelResult, 0)
for _, item := range channelFolderPeers(peers) {
res, err := s.channels.LeaveChannel(ctx, userID, item.Peer.ID, date)
if err != nil {
if errors.Is(err, domain.ErrUserNotParticipant) || errors.Is(err, domain.ErrChannelPrivate) {
continue
}
return results, err
}
results = append(results, res)
}
return results, nil
}
func (s *Service) leaveJoinedChannelResults(ctx context.Context, userID int64, results []domain.CreateChannelResult, date int) error {
if s.channels == nil || len(results) == 0 {
return nil
}
var joinedErr error
for _, res := range results {
if res.Channel.ID == 0 {
continue
}
if _, err := s.channels.LeaveChannel(ctx, userID, res.Channel.ID, date); err != nil &&
!errors.Is(err, domain.ErrUserNotParticipant) &&
!errors.Is(err, domain.ErrChannelPrivate) {
joinedErr = errors.Join(joinedErr, err)
}
}
return joinedErr
}
func (s *Service) deleteInviteIfSaved(ctx context.Context, ownerUserID int64, filterID int, slug string) error {
if slug == "" {
return nil
}
if _, err := s.chatlists.DeleteInvite(ctx, ownerUserID, filterID, slug); err != nil {
return fmt.Errorf("rollback chatlist invite: %w", err)
}
return nil
}
func (s *Service) invitesLimit(ctx context.Context, userID int64) int {
if s != nil && s.premium != nil && s.premium(ctx, userID) {
return domain.MaxChatlistInvitesPremium
}
return domain.MaxChatlistInvitesDefault
}
func (s *Service) joinedLimit(ctx context.Context, userID int64) int {
if s != nil && s.premium != nil && s.premium(ctx, userID) {
return domain.MaxChatlistsJoinedPremium
}
return domain.MaxChatlistsJoinedDefault
}
func exportedChatlistFolder(folder domain.DialogFolder, hasMyInvites bool) domain.DialogFolder {
folder.Contacts = false
folder.NonContacts = false
folder.Groups = false
folder.Broadcasts = false
folder.Bots = false
folder.ExcludeMuted = false
folder.ExcludeRead = false
folder.ExcludeArchived = false
folder.ExcludePeers = nil
folder.IsChatlist = true
folder.HasMyInvites = hasMyInvites
return cloneDialogFolder(folder)
}
func importedChatlistFolder(source domain.DialogFolder, filterID int, peers []domain.DialogFolderPeer) domain.DialogFolder {
source = exportedChatlistFolder(source, false)
source.ID = filterID
source.PinnedPeers = nil
source.IncludePeers = cloneFolderPeers(peers)
source.HasMyInvites = false
return source
}
func selectChatlistPeers(folder domain.DialogFolder, requested []domain.DialogFolderPeer, requireNonEmpty bool) ([]domain.DialogFolderPeer, error) {
allowed := folderPeerMap(folderPeers(folder))
return selectPeersFromAllowed(allowed, requested, requireNonEmpty)
}
func selectInvitePeers(invite domain.ChatlistInvite, requested []domain.DialogFolderPeer, requireNonEmpty bool) ([]domain.DialogFolderPeer, error) {
if len(requested) == 0 {
requested = invite.Peers
}
return selectPeersFromAllowed(folderPeerMap(invite.Peers), requested, requireNonEmpty)
}
func selectPeersFromAllowed(allowed map[domain.Peer]domain.DialogFolderPeer, requested []domain.DialogFolderPeer, requireNonEmpty bool) ([]domain.DialogFolderPeer, error) {
if len(requested) > domain.MaxChatlistInvitePeers {
return nil, domain.ErrChatlistPeersTooMuch
}
out := make([]domain.DialogFolderPeer, 0, len(requested))
seen := make(map[domain.Peer]struct{}, len(requested))
for _, item := range requested {
if item.Peer.Type == "" || item.Peer.ID == 0 {
return nil, domain.ErrChatlistInvalid
}
allowedPeer, ok := allowed[item.Peer]
if !ok {
return nil, domain.ErrChatlistInvalid
}
if _, ok := seen[item.Peer]; ok {
continue
}
seen[item.Peer] = struct{}{}
if item.AccessHash == 0 {
item.AccessHash = allowedPeer.AccessHash
}
out = append(out, item)
}
if requireNonEmpty && len(out) == 0 {
return nil, domain.ErrChatlistPeersEmpty
}
return out, nil
}
func channelFolderPeers(peers []domain.DialogFolderPeer) []domain.DialogFolderPeer {
out := make([]domain.DialogFolderPeer, 0, len(peers))
for _, item := range peers {
if item.Peer.Type == domain.PeerTypeChannel && item.Peer.ID != 0 {
out = append(out, item)
}
}
return out
}
func folderPeers(folder domain.DialogFolder) []domain.DialogFolderPeer {
return mergeFolderPeers(folder.PinnedPeers, folder.IncludePeers)
}
func folderPeerMap(peers []domain.DialogFolderPeer) map[domain.Peer]domain.DialogFolderPeer {
out := make(map[domain.Peer]domain.DialogFolderPeer, len(peers))
for _, item := range peers {
if item.Peer.Type == "" || item.Peer.ID == 0 {
continue
}
if _, ok := out[item.Peer]; !ok {
out[item.Peer] = item
}
}
return out
}
func mergeFolderPeers(a, b []domain.DialogFolderPeer) []domain.DialogFolderPeer {
out := make([]domain.DialogFolderPeer, 0, len(a)+len(b))
seen := make(map[domain.Peer]struct{}, len(a)+len(b))
for _, list := range [][]domain.DialogFolderPeer{a, b} {
for _, item := range list {
if item.Peer.Type == "" || item.Peer.ID == 0 {
continue
}
if _, ok := seen[item.Peer]; ok {
continue
}
seen[item.Peer] = struct{}{}
out = append(out, item)
}
}
return out
}
func peersDifference(all, existing []domain.DialogFolderPeer) []domain.DialogFolderPeer {
existingMap := folderPeerMap(existing)
out := make([]domain.DialogFolderPeer, 0)
for _, item := range all {
if _, ok := existingMap[item.Peer]; !ok {
out = append(out, item)
}
}
return out
}
func peersIntersection(all, existing []domain.DialogFolderPeer) []domain.DialogFolderPeer {
existingMap := folderPeerMap(existing)
out := make([]domain.DialogFolderPeer, 0)
for _, item := range all {
if _, ok := existingMap[item.Peer]; ok {
out = append(out, item)
}
}
return out
}
func cloneDialogFolder(folder domain.DialogFolder) domain.DialogFolder {
folder.TitleEntities = append([]domain.MessageEntity(nil), folder.TitleEntities...)
folder.PinnedPeers = cloneFolderPeers(folder.PinnedPeers)
folder.IncludePeers = cloneFolderPeers(folder.IncludePeers)
folder.ExcludePeers = cloneFolderPeers(folder.ExcludePeers)
return folder
}
func cloneFolderPeers(peers []domain.DialogFolderPeer) []domain.DialogFolderPeer {
return append([]domain.DialogFolderPeer(nil), peers...)
}
func CleanSlug(raw string) string {
return links.CleanChatlistSlug(raw)
}
func randomChatlistSlug() (string, error) {
var b [12]byte
if _, err := rand.Read(b[:]); err != nil {
return "", fmt.Errorf("chatlist slug rand: %w", err)
}
return base64.RawURLEncoding.EncodeToString(b[:]), nil
}