package communities import ( "context" "crypto/ecdsa" "database/sql" "fmt" "io/ioutil" "math" "math/big" "net" "os" "sort" "strconv" "strings" "sync" "time" "github.com/anacrolix/torrent" "github.com/anacrolix/torrent/bencode" "github.com/anacrolix/torrent/metainfo" "github.com/golang/protobuf/proto" "github.com/google/uuid" "github.com/pkg/errors" "go.uber.org/zap" gethcommon "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/hexutil" "github.com/ethereum/go-ethereum/event" "github.com/status-im/status-go/account" "github.com/status-im/status-go/eth-node/crypto" "github.com/status-im/status-go/eth-node/types" "github.com/status-im/status-go/images" "github.com/status-im/status-go/params" "github.com/status-im/status-go/protocol/common" "github.com/status-im/status-go/protocol/encryption" "github.com/status-im/status-go/protocol/ens" "github.com/status-im/status-go/protocol/protobuf" "github.com/status-im/status-go/protocol/requests" "github.com/status-im/status-go/protocol/transport" "github.com/status-im/status-go/protocol/v1" walletcommon "github.com/status-im/status-go/services/wallet/common" "github.com/status-im/status-go/services/wallet/thirdparty/opensea" "github.com/status-im/status-go/services/wallet/token" "github.com/status-im/status-go/signal" ) var defaultAnnounceList = [][]string{ {"udp://tracker.opentrackr.org:1337/announce"}, {"udp://tracker.openbittorrent.com:6969/announce"}, } var pieceLength = 100 * 1024 const maxArchiveSizeInBytes = 30000000 var memberPermissionsCheckInterval = 1 * time.Hour // errors var ( ErrTorrentTimedout = errors.New("torrent has timed out") ErrCommunityRequestAlreadyRejected = errors.New("that user was already rejected from the community") ) type Manager struct { persistence *Persistence encryptor *encryption.Protocol ensSubscription chan []*ens.VerificationRecord subscriptions []chan *Subscription ensVerifier *ens.Verifier identity *ecdsa.PrivateKey accountsManager account.Manager tokenManager TokenManager logger *zap.Logger stdoutLogger *zap.Logger transport *transport.Transport quit chan struct{} openseaClientBuilder openseaClientBuilder torrentConfig *params.TorrentConfig torrentClient *torrent.Client walletConfig *params.WalletConfig historyArchiveTasksWaitGroup sync.WaitGroup historyArchiveTasks sync.Map // stores `chan struct{}` periodicMemberPermissionsTasks sync.Map // stores `chan struct{}` torrentTasks map[string]metainfo.Hash historyArchiveDownloadTasks map[string]*HistoryArchiveDownloadTask } type openseaClient interface { FetchAllAssetsByOwnerAndContractAddress(owner gethcommon.Address, contractAddresses []gethcommon.Address, cursor string, limit int) (*opensea.AssetContainer, error) } type openseaClientBuilder interface { NewOpenseaClient(uint64, string, *event.Feed) (openseaClient, error) } type defaultOpenseaBuilder struct { } func (b *defaultOpenseaBuilder) NewOpenseaClient(chainID uint64, apiKey string, feed *event.Feed) (openseaClient, error) { return opensea.NewOpenseaClient(chainID, apiKey, nil) } type HistoryArchiveDownloadTask struct { CancelChan chan struct{} Waiter sync.WaitGroup m sync.RWMutex Cancelled bool } func (t *HistoryArchiveDownloadTask) IsCancelled() bool { t.m.RLock() defer t.m.RUnlock() return t.Cancelled } func (t *HistoryArchiveDownloadTask) Cancel() { t.m.Lock() defer t.m.Unlock() t.Cancelled = true close(t.CancelChan) } type managerOptions struct { accountsManager account.Manager tokenManager TokenManager walletConfig *params.WalletConfig openseaClientBuilder openseaClientBuilder } type TokenManager interface { GetBalancesByChain(ctx context.Context, accounts, tokens []gethcommon.Address, chainIDs []uint64) (map[uint64]map[gethcommon.Address]map[gethcommon.Address]*hexutil.Big, error) GetAllChainIDs() ([]uint64, error) } type DefaultTokenManager struct { tokenManager *token.Manager } func NewDefaultTokenManager(tm *token.Manager) *DefaultTokenManager { return &DefaultTokenManager{tokenManager: tm} } type BalancesByChain = map[uint64]map[gethcommon.Address]map[gethcommon.Address]*hexutil.Big func (m *DefaultTokenManager) GetAllChainIDs() ([]uint64, error) { networks, err := m.tokenManager.RPCClient.NetworkManager.Get(false) if err != nil { return nil, err } chainIDs := make([]uint64, 0) for _, network := range networks { chainIDs = append(chainIDs, network.ChainID) } return chainIDs, nil } func (m *DefaultTokenManager) GetBalancesByChain(ctx context.Context, accounts, tokenAddresses []gethcommon.Address, chainIDs []uint64) (BalancesByChain, error) { clients, err := m.tokenManager.RPCClient.EthClients(chainIDs) if err != nil { return nil, err } resp, err := m.tokenManager.GetBalancesByChain(context.Background(), clients, accounts, tokenAddresses) return resp, err } type ManagerOption func(*managerOptions) func WithAccountManager(accountsManager account.Manager) ManagerOption { return func(opts *managerOptions) { opts.accountsManager = accountsManager } } func WithOpenseaClientBuilder(builder openseaClientBuilder) ManagerOption { return func(opts *managerOptions) { opts.openseaClientBuilder = builder } } func WithTokenManager(tokenManager TokenManager) ManagerOption { return func(opts *managerOptions) { opts.tokenManager = tokenManager } } func WithWalletConfig(walletConfig *params.WalletConfig) ManagerOption { return func(opts *managerOptions) { opts.walletConfig = walletConfig } } func NewManager(identity *ecdsa.PrivateKey, db *sql.DB, encryptor *encryption.Protocol, logger *zap.Logger, verifier *ens.Verifier, transport *transport.Transport, torrentConfig *params.TorrentConfig, opts ...ManagerOption) (*Manager, error) { if identity == nil { return nil, errors.New("empty identity") } var err error if logger == nil { if logger, err = zap.NewDevelopment(); err != nil { return nil, errors.Wrap(err, "failed to create a logger") } } stdoutLogger, err := zap.NewDevelopment() if err != nil { return nil, errors.Wrap(err, "failed to create archive logger") } managerConfig := managerOptions{} for _, opt := range opts { opt(&managerConfig) } manager := &Manager{ logger: logger, stdoutLogger: stdoutLogger, encryptor: encryptor, identity: identity, quit: make(chan struct{}), transport: transport, torrentConfig: torrentConfig, torrentTasks: make(map[string]metainfo.Hash), historyArchiveDownloadTasks: make(map[string]*HistoryArchiveDownloadTask), persistence: &Persistence{ logger: logger, db: db, }, } if managerConfig.accountsManager != nil { manager.accountsManager = managerConfig.accountsManager } if managerConfig.tokenManager != nil { manager.tokenManager = managerConfig.tokenManager } if managerConfig.walletConfig != nil { manager.walletConfig = managerConfig.walletConfig } if managerConfig.openseaClientBuilder != nil { manager.openseaClientBuilder = managerConfig.openseaClientBuilder } else { manager.openseaClientBuilder = &defaultOpenseaBuilder{} } if verifier != nil { sub := verifier.Subscribe() manager.ensSubscription = sub manager.ensVerifier = verifier } return manager, nil } func (m *Manager) LogStdout(msg string, fields ...zap.Field) { m.stdoutLogger.Info(msg, fields...) m.logger.Debug(msg, fields...) } type archiveMDSlice []*archiveMetadata type archiveMetadata struct { hash string from uint64 } func (md archiveMDSlice) Len() int { return len(md) } func (md archiveMDSlice) Swap(i, j int) { md[i], md[j] = md[j], md[i] } func (md archiveMDSlice) Less(i, j int) bool { return md[i].from > md[j].from } type Subscription struct { Community *Community Invitations []*protobuf.CommunityInvitation CreatingHistoryArchivesSignal *signal.CreatingHistoryArchivesSignal HistoryArchivesCreatedSignal *signal.HistoryArchivesCreatedSignal NoHistoryArchivesCreatedSignal *signal.NoHistoryArchivesCreatedSignal HistoryArchivesSeedingSignal *signal.HistoryArchivesSeedingSignal HistoryArchivesUnseededSignal *signal.HistoryArchivesUnseededSignal HistoryArchiveDownloadedSignal *signal.HistoryArchiveDownloadedSignal DownloadingHistoryArchivesStartedSignal *signal.DownloadingHistoryArchivesStartedSignal DownloadingHistoryArchivesFinishedSignal *signal.DownloadingHistoryArchivesFinishedSignal ImportingHistoryArchiveMessagesSignal *signal.ImportingHistoryArchiveMessagesSignal CommunityAdminEvent *protobuf.CommunityAdminEvent } type CommunityResponse struct { Community *Community `json:"community"` Changes *CommunityChanges `json:"changes"` } func (m *Manager) Subscribe() chan *Subscription { subscription := make(chan *Subscription, 100) m.subscriptions = append(m.subscriptions, subscription) return subscription } func (m *Manager) Start() error { if m.ensVerifier != nil { m.runENSVerificationLoop() } if m.torrentConfig != nil && m.torrentConfig.Enabled { err := m.StartTorrentClient() if err != nil { m.LogStdout("couldn't start torrent client", zap.Error(err)) } } return nil } func (m *Manager) runENSVerificationLoop() { go func() { for { select { case <-m.quit: m.logger.Debug("quitting ens verification loop") return case records, more := <-m.ensSubscription: if !more { m.logger.Debug("no more ens records, quitting") return } m.logger.Info("received records", zap.Any("records", records)) } } }() } func (m *Manager) Stop() error { close(m.quit) for _, c := range m.subscriptions { close(c) } m.StopTorrentClient() return nil } func (m *Manager) SetTorrentConfig(config *params.TorrentConfig) { m.torrentConfig = config } // getTCPandUDPport will return the same port number given if != 0, // otherwise, it will attempt to find a free random tcp and udp port using // the same number for both protocols func (m *Manager) getTCPandUDPport(portNumber int) (int, error) { if portNumber != 0 { return portNumber, nil } // Find free port for i := 0; i < 10; i++ { tcpAddr, err := net.ResolveTCPAddr("tcp", net.JoinHostPort("localhost", "0")) if err != nil { m.logger.Warn("unable to resolve tcp addr: %v", zap.Error(err)) continue } tcpListener, err := net.ListenTCP("tcp", tcpAddr) if err != nil { tcpListener.Close() m.logger.Warn("unable to listen on addr", zap.Stringer("addr", tcpAddr), zap.Error(err)) continue } port := tcpListener.Addr().(*net.TCPAddr).Port tcpListener.Close() udpAddr, err := net.ResolveUDPAddr("udp", net.JoinHostPort("localhost", fmt.Sprintf("%d", port))) if err != nil { m.logger.Warn("unable to resolve udp addr: %v", zap.Error(err)) continue } udpListener, err := net.ListenUDP("udp", udpAddr) if err != nil { udpListener.Close() m.logger.Warn("unable to listen on addr", zap.Stringer("addr", udpAddr), zap.Error(err)) continue } udpListener.Close() return port, nil } return 0, fmt.Errorf("no free port found") } func (m *Manager) StartTorrentClient() error { if m.torrentConfig == nil { return fmt.Errorf("can't start torrent client: missing torrentConfig") } if m.TorrentClientStarted() { return nil } port, err := m.getTCPandUDPport(m.torrentConfig.Port) if err != nil { return err } config := torrent.NewDefaultClientConfig() config.SetListenAddr(":" + fmt.Sprint(port)) config.Seed = true config.DataDir = m.torrentConfig.DataDir if _, err := os.Stat(m.torrentConfig.DataDir); os.IsNotExist(err) { err := os.MkdirAll(m.torrentConfig.DataDir, 0700) if err != nil { return err } } m.logger.Info("Starting torrent client", zap.Any("port", port)) // Instantiating the client will make it bootstrap and listen eagerly, // so no go routine is needed here client, err := torrent.NewClient(config) if err != nil { return err } m.torrentClient = client return nil } func (m *Manager) StopTorrentClient() []error { if m.TorrentClientStarted() { m.StopHistoryArchiveTasksIntervals() m.logger.Info("Stopping torrent client") errs := m.torrentClient.Close() if len(errs) > 0 { return errs } m.torrentClient = nil } return make([]error, 0) } func (m *Manager) TorrentClientStarted() bool { return m.torrentClient != nil } func (m *Manager) publish(subscription *Subscription) { for _, s := range m.subscriptions { select { case s <- subscription: default: m.logger.Warn("subscription channel full, dropping message") } } } func (m *Manager) All() ([]*Community, error) { return m.persistence.AllCommunities(&m.identity.PublicKey) } type KnownCommunitiesResponse struct { ContractCommunities []string `json:"contractCommunities"` ContractFeaturedCommunities []string `json:"contractFeaturedCommunities"` Descriptions map[string]*Community `json:"communities"` UnknownCommunities []string `json:"unknownCommunities"` } func (m *Manager) GetStoredDescriptionForCommunities(communityIDs []types.HexBytes) (response *KnownCommunitiesResponse, err error) { response = &KnownCommunitiesResponse{ Descriptions: make(map[string]*Community), } for i := range communityIDs { communityID := communityIDs[i].String() var community *Community community, err = m.GetByID(communityIDs[i]) if err != nil { return } response.ContractCommunities = append(response.ContractCommunities, communityID) if community != nil { response.Descriptions[community.IDString()] = community } else { response.UnknownCommunities = append(response.UnknownCommunities, communityID) } } return } func (m *Manager) Joined() ([]*Community, error) { return m.persistence.JoinedCommunities(&m.identity.PublicKey) } func (m *Manager) Spectated() ([]*Community, error) { return m.persistence.SpectatedCommunities(&m.identity.PublicKey) } func (m *Manager) JoinedAndPendingCommunitiesWithRequests() ([]*Community, error) { return m.persistence.JoinedAndPendingCommunitiesWithRequests(&m.identity.PublicKey) } func (m *Manager) DeletedCommunities() ([]*Community, error) { return m.persistence.DeletedCommunities(&m.identity.PublicKey) } func (m *Manager) Created() ([]*Community, error) { return m.persistence.CreatedCommunities(&m.identity.PublicKey) } // CreateCommunity takes a description, generates an ID for it, saves it and return it func (m *Manager) CreateCommunity(request *requests.CreateCommunity, publish bool) (*Community, error) { description, err := request.ToCommunityDescription() if err != nil { return nil, err } description.Members = make(map[string]*protobuf.CommunityMember) description.Members[common.PubkeyToHex(&m.identity.PublicKey)] = &protobuf.CommunityMember{Roles: []protobuf.CommunityMember_Roles{protobuf.CommunityMember_ROLE_OWNER}} err = ValidateCommunityDescription(description) if err != nil { return nil, err } description.Clock = 1 key, err := crypto.GenerateKey() if err != nil { return nil, err } config := Config{ ID: &key.PublicKey, PrivateKey: key, Logger: m.logger, Joined: true, MemberIdentity: &m.identity.PublicKey, CommunityDescription: description, } community, err := New(config) if err != nil { return nil, err } // We join any community we create community.Join() err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if publish { m.publish(&Subscription{Community: community}) } return community, nil } func (m *Manager) CreateCommunityTokenPermission(request *requests.CreateCommunityTokenPermission) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } tokenPermission := request.ToCommunityTokenPermission() tokenPermission.Id = uuid.New().String() changes, err := community.AddTokenPermission(&tokenPermission) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else { m.publish(&Subscription{CommunityAdminEvent: community.ToCommunityBecomeMemberTokenPermissionChangeAdminEvent()}) } if community.IsOwner() { // check existing member permission once, then check periodically go func() { err := m.checkMemberPermissions(community, false) if err != nil { m.logger.Debug("failed to check member permissions", zap.Error(err)) } m.CheckMemberPermissionsPeriodically(community.ID()) }() } return community, changes, nil } func (m *Manager) EditCommunityTokenPermission(request *requests.EditCommunityTokenPermission) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } tokenPermission := request.ToCommunityTokenPermission() changes, err := community.UpdateTokenPermission(tokenPermission.Id, &tokenPermission) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() && tokenPermission.Type == protobuf.CommunityTokenPermission_BECOME_MEMBER { m.publish(&Subscription{CommunityAdminEvent: community.ToCommunityBecomeMemberTokenPermissionChangeAdminEvent()}) } // check if members still fulfill the token criteria of all // BECOME_MEMBER permissions and kick them if necessary // // We do this in a separate routine to not block // this function go func() { err := m.checkMemberPermissions(community, false) if err != nil { m.logger.Debug("failed to check member permissions", zap.Error(err)) } }() return community, changes, nil } func (m *Manager) checkMemberPermissions(community *Community, removeAdmins bool) error { becomeMemberPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_MEMBER) becomeAdminPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_ADMIN) adminPermissions := len(becomeAdminPermissions) > 0 memberPermissions := len(becomeMemberPermissions) > 0 if !adminPermissions && !memberPermissions && !removeAdmins { m.publish(&Subscription{Community: community}) return nil } for memberKey, member := range community.Members() { memberPubKey, err := common.HexToPubkey(memberKey) if err != nil { return err } if memberKey == common.PubkeyToHex(&m.identity.PublicKey) || community.IsMemberOwner(memberPubKey) { continue } isAdmin := community.IsMemberAdmin(memberPubKey) memberHasWallet := len(member.RevealedAccounts) > 0 // Check if user was not treated as an admin without wallet in open community // or user treated as a member without wallet in closed community if (!memberHasWallet && isAdmin) || (memberPermissions && !memberHasWallet) { _, err = community.RemoveUserFromOrg(memberPubKey) if err != nil { return err } continue } accountsAndChainIDs := revealedAccountsToAccountsAndChainIDsCombination(member.RevealedAccounts) // Check if user is still an admin or can become an admin and do update of member role removeAdminRole := false if adminPermissions { permissionResponse, err := m.checkPermissionToJoin(becomeAdminPermissions, accountsAndChainIDs, true) if err != nil { return err } else if permissionResponse.Satisfied && !isAdmin { _, err = community.AddRoleToMember(memberPubKey, protobuf.CommunityMember_ROLE_ADMIN) if err != nil { return err } isAdmin = true } else if !permissionResponse.Satisfied && isAdmin { removeAdminRole = true isAdmin = false } } // Remove admin role if user does not pass admin permissions or we do not have admin permissions but have an admin role if removeAdminRole || isAdmin && removeAdmins { _, err = community.RemoveRoleFromMember(memberPubKey, protobuf.CommunityMember_ROLE_ADMIN) if err != nil { return err } isAdmin = false } // Skip further validation if user has admin permissions or we do not have member permissions if isAdmin || !memberPermissions { continue } permissionResponse, err := m.checkPermissionToJoin(becomeMemberPermissions, accountsAndChainIDs, true) if err != nil { return err } if !permissionResponse.Satisfied { _, err = community.RemoveUserFromOrg(memberPubKey) if err != nil { return err } } } m.publish(&Subscription{Community: community}) return nil } func (m *Manager) CheckMemberPermissionsPeriodically(communityID types.HexBytes) { if _, exists := m.periodicMemberPermissionsTasks.Load(communityID.String()); exists { return } cancel := make(chan struct{}) m.periodicMemberPermissionsTasks.Store(communityID.String(), cancel) ticker := time.NewTicker(memberPermissionsCheckInterval) defer ticker.Stop() for { select { case <-ticker.C: community, err := m.GetByID(communityID) if err != nil { m.logger.Debug("can't validate member permissions, community was not found", zap.Error(err)) m.periodicMemberPermissionsTasks.Delete(communityID.String()) } err = m.checkMemberPermissions(community, true) if err != nil { m.logger.Debug("failed to check member permissions", zap.Error(err)) } case <-cancel: m.periodicMemberPermissionsTasks.Delete(communityID.String()) return } } } func (m *Manager) DeleteCommunityTokenPermission(request *requests.DeleteCommunityTokenPermission) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } changes, err := community.DeleteTokenPermission(request.PermissionID) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToCommunityBecomeMemberTokenPermissionDeleteAdminEvent()}) } becomeAdminPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_ADMIN) // Make sure that we remove admins roles if we remove admin permissions err = m.checkMemberPermissions(community, len(becomeAdminPermissions) == 0) if err != nil { return nil, nil, err } // Check if there's stil BECOME_ADMIN and BECOME_MEMBER permissions, // if not we can stop checking token criteria on-chain if cancel, exists := m.periodicMemberPermissionsTasks.Load(community.IDString()); exists && len(community.TokenPermissions()) == 0 { close(cancel.(chan struct{})) // Need to cast to the chan } return community, changes, nil } func (m *Manager) DeleteCommunity(id types.HexBytes) error { err := m.persistence.DeleteCommunity(id) if err != nil { return err } return m.persistence.DeleteCommunitySettings(id) } // EditCommunity takes a description, updates the community with the description, // saves it and returns it func (m *Manager) EditCommunity(request *requests.EditCommunity) (*Community, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } if !community.IsOwnerOrAdmin() { return nil, ErrNotEnoughPermissions } newDescription, err := request.ToCommunityDescription() if err != nil { return nil, fmt.Errorf("Can't create community description: %v", err) } // If permissions weren't explicitly set on original request, use existing ones if newDescription.Permissions.Access == protobuf.CommunityPermissions_UNKNOWN_ACCESS { newDescription.Permissions.Access = community.config.CommunityDescription.Permissions.Access } // Use existing images for the entries that were not updated // NOTE: This will NOT allow deletion of the community image; it will need to // be handled separately. for imageName := range community.config.CommunityDescription.Identity.Images { _, exists := newDescription.Identity.Images[imageName] if !exists { // If no image was set in ToCommunityDescription then Images is nil. if newDescription.Identity.Images == nil { newDescription.Identity.Images = make(map[string]*protobuf.IdentityImage) } newDescription.Identity.Images[imageName] = community.config.CommunityDescription.Identity.Images[imageName] } } // TODO: handle delete image (if needed) err = ValidateCommunityDescription(newDescription) if err != nil { return nil, err } // Edit the community values community.Edit(newDescription) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToCommunityEditAdminEvent()}) } return community, nil } func (m *Manager) ExportCommunity(id types.HexBytes) (*ecdsa.PrivateKey, error) { community, err := m.GetByID(id) if err != nil { return nil, err } if !community.IsOwner() { return nil, ErrNotOwner } return community.config.PrivateKey, nil } func (m *Manager) ImportCommunity(key *ecdsa.PrivateKey) (*Community, error) { communityID := crypto.CompressPubkey(&key.PublicKey) community, err := m.persistence.GetByID(&m.identity.PublicKey, communityID) if err != nil { return nil, err } if community == nil { description := &protobuf.CommunityDescription{ Permissions: &protobuf.CommunityPermissions{}, } config := Config{ ID: &key.PublicKey, PrivateKey: key, Logger: m.logger, Joined: true, MemberIdentity: &m.identity.PublicKey, CommunityDescription: description, } community, err = New(config) if err != nil { return nil, err } } else { community.config.PrivateKey = key } community.Join() err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } return community, nil } func (m *Manager) CreateChat(communityID types.HexBytes, chat *protobuf.CommunityChat, publish bool, thirdPartyID string) (*Community, *CommunityChanges, error) { community, err := m.GetByID(communityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } chatID := uuid.New().String() if thirdPartyID != "" { chatID = chatID + thirdPartyID } changes, err := community.CreateChat(chatID, chat) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if publish { if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToCreateChannelAdminEvent(chatID, chat)}) } } return community, changes, nil } func (m *Manager) EditChat(communityID types.HexBytes, chatID string, chat *protobuf.CommunityChat) (*Community, *CommunityChanges, error) { community, err := m.GetByID(communityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } // Remove communityID prefix from chatID if exists if strings.HasPrefix(chatID, communityID.String()) { chatID = strings.TrimPrefix(chatID, communityID.String()) } changes, err := community.EditChat(chatID, chat) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToEditChannelAdminEvent(chatID, chat)}) } return community, changes, nil } func (m *Manager) DeleteChat(communityID types.HexBytes, chatID string) (*Community, *CommunityChanges, error) { community, err := m.GetByID(communityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } // Remove communityID prefix from chatID if exists if strings.HasPrefix(chatID, communityID.String()) { chatID = strings.TrimPrefix(chatID, communityID.String()) } changes, err := community.DeleteChat(chatID) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToDeleteChannelAdminEvent(chatID)}) } return community, changes, nil } func (m *Manager) CreateCategory(request *requests.CreateCommunityCategory, publish bool) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } categoryID := uuid.New().String() if request.ThirdPartyID != "" { categoryID = categoryID + request.ThirdPartyID } // Remove communityID prefix from chatID if exists for i, cid := range request.ChatIDs { if strings.HasPrefix(cid, request.CommunityID.String()) { request.ChatIDs[i] = strings.TrimPrefix(cid, request.CommunityID.String()) } } changes, err := community.CreateCategory(categoryID, request.CategoryName, request.ChatIDs) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToCreateCategoryAdminEvent(categoryID, request.CategoryName, request.ChatIDs)}) } return community, changes, nil } func (m *Manager) EditCategory(request *requests.EditCommunityCategory) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } // Remove communityID prefix from chatID if exists for i, cid := range request.ChatIDs { if strings.HasPrefix(cid, request.CommunityID.String()) { request.ChatIDs[i] = strings.TrimPrefix(cid, request.CommunityID.String()) } } changes, err := community.EditCategory(request.CategoryID, request.CategoryName, request.ChatIDs) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToEditCategoryAdminEvent(request.CategoryID, request.CategoryName, request.ChatIDs)}) } return community, changes, nil } func (m *Manager) EditChatFirstMessageTimestamp(communityID types.HexBytes, chatID string, timestamp uint32) (*Community, *CommunityChanges, error) { community, err := m.GetByID(communityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } // Remove communityID prefix from chatID if exists if strings.HasPrefix(chatID, communityID.String()) { chatID = strings.TrimPrefix(chatID, communityID.String()) } changes, err := community.UpdateChatFirstMessageTimestamp(chatID, timestamp) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes m.publish(&Subscription{Community: community}) return community, changes, nil } func (m *Manager) ReorderCategories(request *requests.ReorderCommunityCategories) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } changes, err := community.ReorderCategories(request.CategoryID, request.Position) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToReorderCategoryAdminEvent(request.CategoryID, request.Position)}) } return community, changes, nil } func (m *Manager) ReorderChat(request *requests.ReorderCommunityChat) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } // Remove communityID prefix from chatID if exists if strings.HasPrefix(request.ChatID, request.CommunityID.String()) { request.ChatID = strings.TrimPrefix(request.ChatID, request.CommunityID.String()) } changes, err := community.ReorderChat(request.CategoryID, request.ChatID, request.Position) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToReorderChannelAdminEvent(request.CategoryID, request.ChatID, request.Position)}) } return community, changes, nil } func (m *Manager) DeleteCategory(request *requests.DeleteCommunityCategory) (*Community, *CommunityChanges, error) { community, err := m.GetByID(request.CommunityID) if err != nil { return nil, nil, err } if community == nil { return nil, nil, ErrOrgNotFound } changes, err := community.DeleteCategory(request.CategoryID) if err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } // Advertise changes if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToDeleteCategoryAdminEvent(request.CategoryID)}) } return community, changes, nil } func (m *Manager) HandleCommunityDescriptionMessage(signer *ecdsa.PublicKey, description *protobuf.CommunityDescription, payload []byte) (*CommunityResponse, error) { if signer == nil { return nil, errors.New("signer can't be nil") } id := crypto.CompressPubkey(signer) community, err := m.persistence.GetByID(&m.identity.PublicKey, id) if err != nil { return nil, err } if community == nil { config := Config{ CommunityDescription: description, Logger: m.logger, MarshaledCommunityDescription: payload, MemberIdentity: &m.identity.PublicKey, ID: signer, } community, err = New(config) if err != nil { return nil, err } } if !common.IsPubKeyEqual(community.PublicKey(), signer) { return nil, ErrNotAuthorized } return m.handleCommunityDescriptionMessageCommon(community, description, payload) } func (m *Manager) handleCommunityDescriptionMessageCommon(community *Community, description *protobuf.CommunityDescription, payload []byte) (*CommunityResponse, error) { changes, err := community.UpdateCommunityDescription(description, payload) if err != nil { return nil, err } hasCommunityArchiveInfo, err := m.persistence.HasCommunityArchiveInfo(community.ID()) if err != nil { return nil, err } cdMagnetlinkClock := community.config.CommunityDescription.ArchiveMagnetlinkClock if !hasCommunityArchiveInfo { err = m.persistence.SaveCommunityArchiveInfo(community.ID(), cdMagnetlinkClock, 0) if err != nil { return nil, err } } else { magnetlinkClock, err := m.persistence.GetMagnetlinkMessageClock(community.ID()) if err != nil { return nil, err } if cdMagnetlinkClock > magnetlinkClock { err = m.persistence.UpdateMagnetlinkMessageClock(community.ID(), cdMagnetlinkClock) if err != nil { return nil, err } } } pkString := common.PubkeyToHex(&m.identity.PublicKey) // If the community require membership, we set whether we should leave/join the community after a state change if community.InvitationOnly() || community.OnRequest() || community.AcceptRequestToJoinAutomatically() { if changes.HasNewMember(pkString) { hasPendingRequest, err := m.persistence.HasPendingRequestsToJoinForUserAndCommunity(pkString, changes.Community.ID()) if err != nil { return nil, err } // If there's any pending request, we should join the community // automatically changes.ShouldMemberJoin = hasPendingRequest } if changes.HasMemberLeft(pkString) { // If we joined previously the community, we should leave it changes.ShouldMemberLeave = community.Joined() } } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } // We mark our requests as completed, though maybe we should mark // any request for any user that has been added as completed if err := m.markRequestToJoin(&m.identity.PublicKey, community); err != nil { return nil, err } // Check if there's a change and we should be joining return &CommunityResponse{ Community: community, Changes: changes, }, nil } func (m *Manager) HandleCommunityAdminEvent(signer *ecdsa.PublicKey, adminEvent *protobuf.CommunityAdminEvent, payload []byte) (*CommunityResponse, error) { if signer == nil { return nil, errors.New("signer can't be nil") } community, err := m.persistence.GetByID(&m.identity.PublicKey, adminEvent.CommunityId) if err != nil { return nil, err } if !community.IsMemberAdmin(signer) { return nil, errors.New("user is not an admin") } patchedCommDescr, err := community.PatchCommunityDescriptionByAdminEvent(adminEvent) if err != nil { return nil, err } marshaledCommDescr, err := proto.Marshal(patchedCommDescr) if err != nil { return nil, err } // Some admin changes do not live on a `Community` and need to be handled by // `Manager` here err = m.handleAdditionalAdminChanges(community, adminEvent) if err != nil { return nil, err } rawMessage, err := protocol.WrapMessageV1(marshaledCommDescr, protobuf.ApplicationMetadataMessage_COMMUNITY_DESCRIPTION, community.PrivateKey()) if err != nil { return nil, err } return m.handleCommunityDescriptionMessageCommon(community, patchedCommDescr, rawMessage) } func (m *Manager) handleAdditionalAdminChanges(community *Community, adminEvent *protobuf.CommunityAdminEvent) error { saveOrUpdateRequestToJoin := func(signer string, request *protobuf.CommunityRequestToJoin, state RequestToJoinState) error { requestToJoin := &RequestToJoin{ PublicKey: signer, Clock: request.Clock, ENSName: request.EnsName, CommunityID: request.CommunityId, State: state, RevealedAccounts: request.RevealedAccounts, } requestToJoin.CalculateID() existingRequestToJoin, err := m.persistence.GetRequestToJoin(requestToJoin.ID) if err != nil && err != sql.ErrNoRows { return err } if existingRequestToJoin != nil { // node already knows about this request to join, so let's compare clocks // and update it if necessary if existingRequestToJoin.Clock <= requestToJoin.Clock { pk, err := common.HexToPubkey(existingRequestToJoin.PublicKey) if err != nil { return err } err = m.persistence.SetRequestToJoinState(common.PubkeyToHex(pk), community.ID(), state) if err != nil { return err } } } else { err := m.persistence.SaveRequestToJoin(requestToJoin) if err != nil { return err } } return nil } switch adminEvent.Type { case protobuf.CommunityAdminEvent_COMMUNITY_REQUEST_TO_JOIN_ACCEPT: for signer, request := range adminEvent.AcceptedRequestsToJoin { err := saveOrUpdateRequestToJoin(signer, request, RequestToJoinStateAccepted) if err != nil { return err } } case protobuf.CommunityAdminEvent_COMMUNITY_REQUEST_TO_JOIN_REJECT: for signer, request := range adminEvent.RejectedRequestsToJoin { err := saveOrUpdateRequestToJoin(signer, request, RequestToJoinStateDeclined) if err != nil { return err } } default: } return nil } // TODO: This is not fully implemented, we want to save the grant passed at // this stage and make sure it's used when publishing. func (m *Manager) HandleCommunityInvitation(signer *ecdsa.PublicKey, invitation *protobuf.CommunityInvitation, payload []byte) (*CommunityResponse, error) { m.logger.Debug("Handling wrapped community description message") community, err := m.HandleWrappedCommunityDescriptionMessage(payload) if err != nil { return nil, err } // Save grant return community, nil } // markRequestToJoin marks all the pending requests to join as completed // if we are members func (m *Manager) markRequestToJoin(pk *ecdsa.PublicKey, community *Community) error { if community.HasMember(pk) { return m.persistence.SetRequestToJoinState(common.PubkeyToHex(pk), community.ID(), RequestToJoinStateAccepted) } return nil } func (m *Manager) markRequestToJoinAsCanceled(pk *ecdsa.PublicKey, community *Community) error { return m.persistence.SetRequestToJoinState(common.PubkeyToHex(pk), community.ID(), RequestToJoinStateCanceled) } func (m *Manager) DeletePendingRequestToJoin(request *RequestToJoin) error { community, err := m.GetByID(request.CommunityID) if err != nil { return err } err = m.persistence.DeletePendingRequestToJoin(request.ID) if err != nil { return err } err = m.persistence.SaveCommunity(community) if err != nil { return err } return nil } // UpdateClockInRequestToJoin method is used for testing func (m *Manager) UpdateClockInRequestToJoin(id types.HexBytes, clock uint64) error { return m.persistence.UpdateClockInRequestToJoin(id, clock) } func (m *Manager) SetMuted(id types.HexBytes, muted bool, mutedTill time.Time) error { return m.persistence.SetMuted(id, muted, mutedTill) } func (m *Manager) CancelRequestToJoin(request *requests.CancelRequestToJoinCommunity) (*RequestToJoin, *Community, error) { dbRequest, err := m.persistence.GetRequestToJoin(request.ID) if err != nil { return nil, nil, err } community, err := m.GetByID(dbRequest.CommunityID) if err != nil { return nil, nil, err } pk, err := common.HexToPubkey(dbRequest.PublicKey) if err != nil { return nil, nil, err } dbRequest.State = RequestToJoinStateCanceled if err := m.markRequestToJoinAsCanceled(pk, community); err != nil { return nil, nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, nil, err } return dbRequest, community, nil } func (m *Manager) CheckPermissionToJoin(id []byte, addresses []gethcommon.Address) (*CheckPermissionToJoinResponse, error) { community, err := m.GetByID(id) if err != nil { return nil, err } becomeAdminPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_ADMIN) becomeMemberPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_MEMBER) permissionsToJoin := append(becomeAdminPermissions, becomeMemberPermissions...) allChainIDs, err := m.tokenManager.GetAllChainIDs() if err != nil { return nil, err } accountsAndChainIDs := combineAddressesAndChainIDs(addresses, allChainIDs) return m.checkPermissionToJoin(permissionsToJoin, accountsAndChainIDs, false) } func (m *Manager) AcceptRequestToJoin(request *requests.AcceptRequestToJoinCommunity) (*Community, error) { dbRequest, err := m.persistence.GetRequestToJoin(request.ID) if err != nil { return nil, err } community, err := m.GetByID(dbRequest.CommunityID) if err != nil { return nil, err } becomeAdminPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_ADMIN) becomeMemberPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_MEMBER) revealedAccounts, err := m.persistence.GetRequestToJoinRevealedAddresses(dbRequest.ID) if err != nil { return nil, err } memberRole := protobuf.CommunityMember_ROLE_NONE if len(becomeMemberPermissions) > 0 || len(becomeAdminPermissions) > 0 { accountsAndChainIDs := revealedAccountsToAccountsAndChainIDsCombination(revealedAccounts) // admin token permissions required to became an admin must not cancel request to join // if requirements were not met hasPermission := m.accountsHasAdminPermission(becomeAdminPermissions, accountsAndChainIDs) if hasPermission { memberRole = protobuf.CommunityMember_ROLE_ADMIN } else if len(becomeMemberPermissions) > 0 { permissionResponse, err := m.checkPermissionToJoin(becomeMemberPermissions, accountsAndChainIDs, true) if err != nil { return nil, err } hasPermission := permissionResponse.Satisfied if !hasPermission { return community, ErrNoPermissionToJoin } } } pk, err := common.HexToPubkey(dbRequest.PublicKey) if err != nil { return nil, err } role := []protobuf.CommunityMember_Roles{} if memberRole != protobuf.CommunityMember_ROLE_NONE { role = []protobuf.CommunityMember_Roles{memberRole} } changes, err := community.AddMember(pk, role) if err != nil { return nil, err } _, err = community.AddMemberRevealedAccounts(dbRequest.PublicKey, revealedAccounts) if err != nil { return nil, err } if err := m.markRequestToJoin(pk, community); err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { acceptedRequestsToJoin := make(map[string]*protobuf.CommunityRequestToJoin) acceptedRequestsToJoin[dbRequest.PublicKey] = dbRequest.ToCommunityRequestToJoinProtobuf() adminChanges := &CommunityAdminEventChanges{ CommunityChanges: changes, AcceptedRequestsToJoin: acceptedRequestsToJoin, } m.publish(&Subscription{CommunityAdminEvent: community.ToCommunityRequestToJoinAcceptAdminEvent(adminChanges)}) } return community, nil } func (m *Manager) GetRequestToJoin(ID types.HexBytes) (*RequestToJoin, error) { return m.persistence.GetRequestToJoin(ID) } func (m *Manager) DeclineRequestToJoin(request *requests.DeclineRequestToJoinCommunity) error { dbRequest, err := m.persistence.GetRequestToJoin(request.ID) if err != nil { return err } community, err := m.GetByID(dbRequest.CommunityID) if err != nil { return err } err = m.persistence.SetRequestToJoinState(dbRequest.PublicKey, dbRequest.CommunityID, RequestToJoinStateDeclined) if err != nil { return err } // typically, community's clock is increased implicitly when making changes // to it, however in this scenario there are no changes in the community, yet // we need to increase the clock to ensure the admin event is processed by other // nodes. community.increaseClock() rejectedRequestsToJoin := make(map[string]*protobuf.CommunityRequestToJoin) rejectedRequestsToJoin[dbRequest.PublicKey] = dbRequest.ToCommunityRequestToJoinProtobuf() adminChanges := &CommunityAdminEventChanges{ CommunityChanges: community.emptyCommunityChanges(), RejectedRequestsToJoin: rejectedRequestsToJoin, } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToCommunityRequestToJoinRejectAdminEvent(adminChanges)}) } return nil } func (m *Manager) isUserRejectedFromCommunity(signer *ecdsa.PublicKey, community *Community, requestClock uint64) (bool, error) { declinedRequestsToJoin, err := m.persistence.DeclinedRequestsToJoinForCommunity(community.ID()) if err != nil { return false, err } for _, req := range declinedRequestsToJoin { if req.PublicKey == common.PubkeyToHex(signer) { dbRequestTimeOutClock, err := AddTimeoutToRequestToJoinClock(req.Clock) if err != nil { return false, err } if requestClock < dbRequestTimeOutClock { return true, nil } } } return false, nil } func (m *Manager) HandleCommunityCancelRequestToJoin(signer *ecdsa.PublicKey, request *protobuf.CommunityCancelRequestToJoin) (*RequestToJoin, error) { community, err := m.persistence.GetByID(&m.identity.PublicKey, request.CommunityId) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } isUserRejected, err := m.isUserRejectedFromCommunity(signer, community, request.Clock) if err != nil { return nil, err } if isUserRejected { return nil, ErrCommunityRequestAlreadyRejected } err = m.markRequestToJoinAsCanceled(signer, community) if err != nil { return nil, err } requestToJoin, err := m.persistence.GetRequestToJoinByPk(common.PubkeyToHex(signer), community.ID(), RequestToJoinStateCanceled) if err != nil { return nil, err } return requestToJoin, nil } func (m *Manager) HandleCommunityRequestToJoin(signer *ecdsa.PublicKey, request *protobuf.CommunityRequestToJoin) (*RequestToJoin, error) { community, err := m.persistence.GetByID(&m.identity.PublicKey, request.CommunityId) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } isUserRejected, err := m.isUserRejectedFromCommunity(signer, community, request.Clock) if err != nil { return nil, err } if isUserRejected { return nil, ErrCommunityRequestAlreadyRejected } // Banned member can't request to join community if community.isBanned(signer) { return nil, ErrCantRequestAccess } if err := community.ValidateRequestToJoin(signer, request); err != nil { return nil, err } requestToJoin := &RequestToJoin{ PublicKey: common.PubkeyToHex(signer), Clock: request.Clock, ENSName: request.EnsName, CommunityID: request.CommunityId, State: RequestToJoinStatePending, RevealedAccounts: request.RevealedAccounts, } requestToJoin.CalculateID() if err := m.persistence.SaveRequestToJoin(requestToJoin); err != nil { return nil, err } if len(request.RevealedAccounts) > 0 { // verify if revealed addresses indeed belong to requester for _, revealedAccount := range request.RevealedAccounts { recoverParams := account.RecoverParams{ Message: types.EncodeHex(crypto.Keccak256(crypto.CompressPubkey(signer), community.ID(), requestToJoin.ID)), Signature: types.EncodeHex(revealedAccount.Signature), } matching, err := m.accountsManager.CanRecover(recoverParams, types.HexToAddress(revealedAccount.Address)) if err != nil { return nil, err } if !matching { // if ownership of only one wallet address cannot be verified, // we mark the request as cancelled and stop err = m.markRequestToJoinAsCanceled(signer, community) if err != nil { return nil, err } requestToJoin.State = RequestToJoinStateDeclined return requestToJoin, nil } } // Save revealed addresses + signatures so they can later be added // to the community member list when the request is accepted err = m.persistence.SaveRequestToJoinRevealedAddresses(requestToJoin) if err != nil { return nil, err } } becomeAdminPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_ADMIN) becomeMemberPermissions := community.TokenPermissionsByType(protobuf.CommunityTokenPermission_BECOME_MEMBER) // If user is already a member, then accept request automatically // It may happen when member removes itself from community and then tries to rejoin // More specifically, CommunityRequestToLeave may be delivered later than CommunityRequestToJoin, or not delivered at all acceptAutomatically := community.AcceptRequestToJoinAutomatically() || community.HasMember(signer) hasPermission := false // if we have admin or member permission and user revealed the address - process verification // if user does not reveal the address and we have member permission only - we decline this request // if user does not reveal the address and we have admin permission only - user allowed to join as a member // in non private community if (len(becomeMemberPermissions) > 0 || len(becomeAdminPermissions) > 0) && len(request.RevealedAccounts) > 0 { accountsAndChainIDs := revealedAccountsToAccountsAndChainIDsCombination(request.RevealedAccounts) // admin token permissions required to become an admin must not cancel request to join // if requirements were not met hasPermission = m.accountsHasAdminPermission(becomeAdminPermissions, accountsAndChainIDs) // if user does not have admin permissions, check on member permissions if !hasPermission && len(becomeMemberPermissions) > 0 { permissionResponse, err := m.checkPermissionToJoin(becomeMemberPermissions, accountsAndChainIDs, true) if err != nil { return nil, err } hasPermission = permissionResponse.Satisfied if !hasPermission { err = m.markRequestToJoinAsCanceled(signer, community) if err != nil { return nil, err } requestToJoin.State = RequestToJoinStateDeclined return requestToJoin, nil } } // Save revealed addresses + signatures so they can later be added // to the community member list when the request is accepted err = m.persistence.SaveRequestToJoinRevealedAddresses(requestToJoin) if err != nil { return nil, err } } else if len(becomeMemberPermissions) > 0 && len(request.RevealedAccounts) == 0 { // we have member token permissions but requester hasn't revealed // any addresses err = m.markRequestToJoinAsCanceled(signer, community) if err != nil { return nil, err } requestToJoin.State = RequestToJoinStateDeclined return requestToJoin, nil } if (len(becomeMemberPermissions) == 0 || hasPermission) && acceptAutomatically { err = m.markRequestToJoin(signer, community) if err != nil { return nil, err } requestToJoin.State = RequestToJoinStateAccepted } return requestToJoin, nil } type CheckPermissionsResponse struct { Satisfied bool `json:"satisfied"` Permissions map[string]*PermissionTokenCriteriaResult `json:"permissions"` ValidCombinations []*AccountChainIDsCombination `json:"validCombinations"` } type CheckPermissionToJoinResponse = CheckPermissionsResponse type PermissionTokenCriteriaResult struct { Criteria []bool `json:"criteria"` } type AccountChainIDsCombination struct { Address gethcommon.Address `json:"address"` ChainIDs []uint64 `json:"chainIds"` } func (c *CheckPermissionToJoinResponse) calculateSatisfied() { if len(c.Permissions) == 0 { c.Satisfied = true return } c.Satisfied = false for _, p := range c.Permissions { satisfied := true for _, criteria := range p.Criteria { if !criteria { satisfied = false break } } if satisfied { c.Satisfied = true } } } func calculateChainIDsSet(accountsAndChainIDs []*AccountChainIDsCombination, requirementsChainIDs map[uint64]bool) []uint64 { revealedAccountsChainIDs := make([]uint64, 0) revealedAccountsChainIDsMap := make(map[uint64]bool) // we want all chainIDs provided by revealed addresses that also exist // in the token requirements for _, accountAndChainIDs := range accountsAndChainIDs { for _, chainID := range accountAndChainIDs.ChainIDs { if requirementsChainIDs[chainID] && !revealedAccountsChainIDsMap[chainID] { revealedAccountsChainIDsMap[chainID] = true revealedAccountsChainIDs = append(revealedAccountsChainIDs, chainID) } } } return revealedAccountsChainIDs } func (m *Manager) checkPermissionToJoin(permissions []*protobuf.CommunityTokenPermission, accountsAndChainIDs []*AccountChainIDsCombination, shortcircuit bool) (*CheckPermissionToJoinResponse, error) { return m.checkPermissions(permissions, accountsAndChainIDs, shortcircuit) } // checkPermissions will retrieve balances and check whether the user has // permission to join the community, if shortcircuit is true, it will stop as soon // as we know the answer func (m *Manager) checkPermissions(permissions []*protobuf.CommunityTokenPermission, accountsAndChainIDs []*AccountChainIDsCombination, shortcircuit bool) (*CheckPermissionsResponse, error) { response := &CheckPermissionsResponse{ Satisfied: false, Permissions: make(map[string]*PermissionTokenCriteriaResult), ValidCombinations: make([]*AccountChainIDsCombination, 0), } erc20TokenRequirements, erc721TokenRequirements, _ := ExtractTokenCriteria(permissions) erc20ChainIDsMap := make(map[uint64]bool) erc721ChainIDsMap := make(map[uint64]bool) erc20TokenAddresses := make([]gethcommon.Address, 0) accounts := make([]gethcommon.Address, 0) for _, accountAndChainIDs := range accountsAndChainIDs { accounts = append(accounts, accountAndChainIDs.Address) } // figure out chain IDs we're interested in for chainID, tokens := range erc20TokenRequirements { erc20ChainIDsMap[chainID] = true for contractAddress := range tokens { erc20TokenAddresses = append(erc20TokenAddresses, gethcommon.HexToAddress(contractAddress)) } } for chainID := range erc721TokenRequirements { erc721ChainIDsMap[chainID] = true } chainIDsForERC20 := calculateChainIDsSet(accountsAndChainIDs, erc20ChainIDsMap) chainIDsForERC721 := calculateChainIDsSet(accountsAndChainIDs, erc721ChainIDsMap) // if there are no chain IDs that match token criteria chain IDs // we aren't able to check balances on selected networks if len(erc20ChainIDsMap) > 0 && len(chainIDsForERC20) == 0 { return response, nil } ownedERC20TokenBalances := make(map[uint64]map[gethcommon.Address]map[gethcommon.Address]*hexutil.Big, 0) if len(chainIDsForERC20) > 0 { // this only returns balances for the networks we're actually interested in balances, err := m.tokenManager.GetBalancesByChain(context.Background(), accounts, erc20TokenAddresses, chainIDsForERC20) if err != nil { return nil, err } ownedERC20TokenBalances = balances } ownedERC721Tokens := make(CollectiblesByChain) if len(chainIDsForERC721) > 0 { collectibles, err := m.GetOwnedERC721Tokens(accounts, erc721TokenRequirements, chainIDsForERC721) if err != nil { return nil, err } ownedERC721Tokens = collectibles } accountsChainIDsCombinations := make(map[gethcommon.Address]map[uint64]bool) for _, tokenPermission := range permissions { permissionRequirementsMet := true response.Permissions[tokenPermission.Id] = &PermissionTokenCriteriaResult{} // There can be multiple token requirements per permission. // If only one is not met, the entire permission is marked // as not fulfilled for _, tokenRequirement := range tokenPermission.TokenCriteria { tokenRequirementMet := false if tokenRequirement.Type == protobuf.CommunityTokenType_ERC721 { if len(ownedERC721Tokens) == 0 { response.Permissions[tokenPermission.Id].Criteria = append(response.Permissions[tokenPermission.Id].Criteria, false) continue } chainIDLoopERC721: for chainID, address := range tokenRequirement.ContractAddresses { if _, exists := ownedERC721Tokens[chainID]; !exists || len(ownedERC721Tokens[chainID]) == 0 { continue chainIDLoopERC721 } for account := range ownedERC721Tokens[chainID] { if _, exists := ownedERC721Tokens[chainID][account]; !exists { continue } if _, exists := ownedERC721Tokens[chainID][account][strings.ToLower(address)]; exists { if _, exists := accountsChainIDsCombinations[account]; !exists { accountsChainIDsCombinations[account] = make(map[uint64]bool) } if len(tokenRequirement.TokenIds) == 0 { // no specific tokenId of this collection is needed tokenRequirementMet = true accountsChainIDsCombinations[account][chainID] = true break chainIDLoopERC721 } tokenIDsLoop: for _, tokenID := range tokenRequirement.TokenIds { tokenIDBigInt := new(big.Int).SetUint64(tokenID) for _, asset := range ownedERC721Tokens[chainID][account][strings.ToLower(address)] { if asset.TokenID.Cmp(tokenIDBigInt) == 0 { tokenRequirementMet = true accountsChainIDsCombinations[account][chainID] = true break tokenIDsLoop } } } } } } } else if tokenRequirement.Type == protobuf.CommunityTokenType_ERC20 { if len(ownedERC20TokenBalances) == 0 { response.Permissions[tokenPermission.Id].Criteria = append(response.Permissions[tokenPermission.Id].Criteria, false) continue } accumulatedBalance := new(big.Float) chainIDLoopERC20: for chainID, address := range tokenRequirement.ContractAddresses { if _, exists := ownedERC20TokenBalances[chainID]; !exists || len(ownedERC20TokenBalances[chainID]) == 0 { continue chainIDLoopERC20 } contractAddress := gethcommon.HexToAddress(address) for account := range ownedERC20TokenBalances[chainID] { if _, exists := ownedERC20TokenBalances[chainID][account][contractAddress]; !exists { continue } value := ownedERC20TokenBalances[chainID][account][contractAddress] accountChainBalance := new(big.Float).Quo( new(big.Float).SetInt(value.ToInt()), big.NewFloat(math.Pow(10, float64(tokenRequirement.Decimals))), ) if _, exists := accountsChainIDsCombinations[account]; !exists { accountsChainIDsCombinations[account] = make(map[uint64]bool) } if accountChainBalance.Cmp(big.NewFloat(0)) > 0 { // account has balance > 0 on this chain for this token, so let's add it the chain IDs accountsChainIDsCombinations[account][chainID] = true } // check if adding current chain account balance to accumulated balance // satisfies required amount prevBalance := accumulatedBalance accumulatedBalance.Add(prevBalance, accountChainBalance) requiredAmount, err := strconv.ParseFloat(tokenRequirement.Amount, 32) if err != nil { return nil, err } if accumulatedBalance.Cmp(big.NewFloat(requiredAmount)) != -1 { tokenRequirementMet = true if shortcircuit { break chainIDLoopERC20 } } } } } else if tokenRequirement.Type == protobuf.CommunityTokenType_ENS { for _, account := range accounts { ownedENSNames, err := m.getOwnedENS([]gethcommon.Address{account}) if err != nil { return nil, err } if _, exists := accountsChainIDsCombinations[account]; !exists { accountsChainIDsCombinations[account] = make(map[uint64]bool) } if !strings.HasPrefix(tokenRequirement.EnsPattern, "*.") { for _, ownedENS := range ownedENSNames { if ownedENS == tokenRequirement.EnsPattern { tokenRequirementMet = true accountsChainIDsCombinations[account][walletcommon.EthereumMainnet] = true } } } else { parentName := tokenRequirement.EnsPattern[2:] for _, ownedENS := range ownedENSNames { if strings.HasSuffix(ownedENS, parentName) { tokenRequirementMet = true accountsChainIDsCombinations[account][walletcommon.EthereumMainnet] = true } } } } } if !tokenRequirementMet { permissionRequirementsMet = false } response.Permissions[tokenPermission.Id].Criteria = append(response.Permissions[tokenPermission.Id].Criteria, tokenRequirementMet) } // multiple permissions are treated as logical OR, meaning // if only one of them is fulfilled, the user gets permission // to join and we can stop early if shortcircuit && permissionRequirementsMet { break } } // attach valid account and chainID combinations to response for account, chainIDs := range accountsChainIDsCombinations { combination := &AccountChainIDsCombination{ Address: account, } for chainID := range chainIDs { combination.ChainIDs = append(combination.ChainIDs, chainID) } response.ValidCombinations = append(response.ValidCombinations, combination) } response.calculateSatisfied() return response, nil } type CollectiblesByChain = map[uint64]map[gethcommon.Address]map[string][]opensea.Asset func (m *Manager) GetOwnedERC721Tokens(walletAddresses []gethcommon.Address, tokenRequirements map[uint64]map[string]*protobuf.TokenCriteria, chainIDs []uint64) (CollectiblesByChain, error) { if m.walletConfig == nil || m.walletConfig.OpenseaAPIKey == "" { return nil, errors.New("no opensea client") } ownedERC721Tokens := make(map[uint64]map[gethcommon.Address]map[string][]opensea.Asset) for chainID, erc721Tokens := range tokenRequirements { skipChain := true for _, cID := range chainIDs { if chainID == cID { skipChain = false } } if skipChain { continue } client, err := m.openseaClientBuilder.NewOpenseaClient(chainID, m.walletConfig.OpenseaAPIKey, nil) if err != nil { return nil, err } contractAddresses := make([]gethcommon.Address, 0) for contractAddress := range erc721Tokens { contractAddresses = append(contractAddresses, gethcommon.HexToAddress(contractAddress)) } if _, exists := ownedERC721Tokens[chainID]; !exists { ownedERC721Tokens[chainID] = make(map[gethcommon.Address]map[string][]opensea.Asset) } for _, owner := range walletAddresses { assets, err := client.FetchAllAssetsByOwnerAndContractAddress(owner, contractAddresses, "", 5) if err != nil { m.logger.Info("couldn't fetch owner assets", zap.Error(err)) return nil, err } if len(assets.Assets) == 0 { continue } if _, exists := ownedERC721Tokens[chainID][owner]; !exists { ownedERC721Tokens[chainID][owner] = make(map[string][]opensea.Asset, 0) } for _, asset := range assets.Assets { if _, exists := ownedERC721Tokens[chainID][owner][asset.Contract.Address]; !exists { ownedERC721Tokens[chainID][owner][asset.Contract.Address] = make([]opensea.Asset, 0) } ownedERC721Tokens[chainID][owner][asset.Contract.Address] = append(ownedERC721Tokens[chainID][owner][asset.Contract.Address], asset) } } } return ownedERC721Tokens, nil } func (m *Manager) getOwnedENS(addresses []gethcommon.Address) ([]string, error) { ownedENS := make([]string, 0) if m.ensVerifier == nil { m.logger.Warn("no ensVerifier configured for communities manager") return ownedENS, nil } for _, address := range addresses { name, err := m.ensVerifier.ReverseResolve(address) if err != nil && err.Error() != "not a resolver" { return ownedENS, err } if name != "" { ownedENS = append(ownedENS, name) } } return ownedENS, nil } func (m *Manager) CheckChannelPermissions(communityID types.HexBytes, chatID string, addresses []gethcommon.Address) (*CheckChannelPermissionsResponse, error) { community, err := m.GetByID(communityID) if err != nil { return nil, err } if chatID == "" { return nil, errors.New(fmt.Sprintf("couldn't check channel permissions, invalid chat id: %s", chatID)) } viewOnlyPermissions := community.ChannelTokenPermissionsByType(chatID, protobuf.CommunityTokenPermission_CAN_VIEW_CHANNEL) viewAndPostPermissions := community.ChannelTokenPermissionsByType(chatID, protobuf.CommunityTokenPermission_CAN_VIEW_AND_POST_CHANNEL) allChainIDs, err := m.tokenManager.GetAllChainIDs() if err != nil { return nil, err } accountsAndChainIDs := combineAddressesAndChainIDs(addresses, allChainIDs) response, err := m.checkChannelPermissions(viewOnlyPermissions, viewAndPostPermissions, accountsAndChainIDs, false) if err != nil { return nil, err } err = m.persistence.SaveCheckChannelPermissionResponse(communityID.String(), chatID, response) if err != nil { return nil, err } return response, nil } type CheckChannelPermissionsResponse struct { ViewOnlyPermissions *CheckChannelViewOnlyPermissionsResult `json:"viewOnlyPermissions"` ViewAndPostPermissions *CheckChannelViewAndPostPermissionsResult `json:"viewAndPostPermissions"` } type CheckChannelViewOnlyPermissionsResult struct { Satisfied bool `json:"satisfied"` Permissions map[string]*PermissionTokenCriteriaResult `json:"permissions"` } type CheckChannelViewAndPostPermissionsResult struct { Satisfied bool `json:"satisfied"` Permissions map[string]*PermissionTokenCriteriaResult `json:"permissions"` } func (m *Manager) checkChannelPermissions(viewOnlyPermissions []*protobuf.CommunityTokenPermission, viewAndPostPermissions []*protobuf.CommunityTokenPermission, accountsAndChainIDs []*AccountChainIDsCombination, shortcircuit bool) (*CheckChannelPermissionsResponse, error) { response := &CheckChannelPermissionsResponse{ ViewOnlyPermissions: &CheckChannelViewOnlyPermissionsResult{ Satisfied: false, Permissions: make(map[string]*PermissionTokenCriteriaResult), }, ViewAndPostPermissions: &CheckChannelViewAndPostPermissionsResult{ Satisfied: false, Permissions: make(map[string]*PermissionTokenCriteriaResult), }, } viewOnlyPermissionsResponse, err := m.checkPermissions(viewOnlyPermissions, accountsAndChainIDs, shortcircuit) if err != nil { return nil, err } viewAndPostPermissionsResponse, err := m.checkPermissions(viewAndPostPermissions, accountsAndChainIDs, shortcircuit) if err != nil { return nil, err } hasViewOnlyPermissions := len(viewOnlyPermissions) > 0 hasViewAndPostPermissions := len(viewAndPostPermissions) > 0 if (hasViewAndPostPermissions && !hasViewOnlyPermissions) || (hasViewOnlyPermissions && hasViewAndPostPermissions && viewAndPostPermissionsResponse.Satisfied) { response.ViewOnlyPermissions.Satisfied = viewAndPostPermissionsResponse.Satisfied } else { response.ViewOnlyPermissions.Satisfied = viewOnlyPermissionsResponse.Satisfied } response.ViewOnlyPermissions.Permissions = viewOnlyPermissionsResponse.Permissions if (hasViewOnlyPermissions && !viewOnlyPermissionsResponse.Satisfied) || (hasViewOnlyPermissions && !hasViewAndPostPermissions) { response.ViewAndPostPermissions.Satisfied = false } else { response.ViewAndPostPermissions.Satisfied = viewAndPostPermissionsResponse.Satisfied } response.ViewAndPostPermissions.Permissions = viewAndPostPermissionsResponse.Permissions return response, nil } func (m *Manager) CheckAllChannelsPermissions(communityID types.HexBytes, addresses []gethcommon.Address) (*CheckAllChannelsPermissionsResponse, error) { community, err := m.GetByID(communityID) if err != nil { return nil, err } channels := community.Chats() allChainIDs, err := m.tokenManager.GetAllChainIDs() if err != nil { return nil, err } accountsAndChainIDs := combineAddressesAndChainIDs(addresses, allChainIDs) response := &CheckAllChannelsPermissionsResponse{ Channels: make(map[string]*CheckChannelPermissionsResponse), } for channelID := range channels { viewOnlyPermissions := community.ChannelTokenPermissionsByType(community.IDString()+channelID, protobuf.CommunityTokenPermission_CAN_VIEW_CHANNEL) viewAndPostPermissions := community.ChannelTokenPermissionsByType(community.IDString()+channelID, protobuf.CommunityTokenPermission_CAN_VIEW_AND_POST_CHANNEL) checkChannelPermissionsResponse, err := m.checkChannelPermissions(viewOnlyPermissions, viewAndPostPermissions, accountsAndChainIDs, false) if err != nil { return nil, err } err = m.persistence.SaveCheckChannelPermissionResponse(community.IDString(), community.IDString()+channelID, checkChannelPermissionsResponse) if err != nil { return nil, err } response.Channels[community.IDString()+channelID] = checkChannelPermissionsResponse } return response, nil } func (m *Manager) GetCheckChannelPermissionResponses(communityID types.HexBytes) (*CheckAllChannelsPermissionsResponse, error) { response, err := m.persistence.GetCheckChannelPermissionResponses(communityID.String()) if err != nil { return nil, err } return &CheckAllChannelsPermissionsResponse{Channels: response}, nil } type CheckAllChannelsPermissionsResponse struct { Channels map[string]*CheckChannelPermissionsResponse `json:"channels"` } func (m *Manager) HandleCommunityRequestToJoinResponse(signer *ecdsa.PublicKey, request *protobuf.CommunityRequestToJoinResponse) (*RequestToJoin, error) { pkString := common.PubkeyToHex(&m.identity.PublicKey) community, err := m.persistence.GetByID(&m.identity.PublicKey, request.CommunityId) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } communityDescriptionBytes, err := proto.Marshal(request.Community) if err != nil { return nil, err } // We need to wrap `request.Community` in an `ApplicationMetadataMessage` // of type `CommunityDescription` because `UpdateCommunityDescription` expects this. // // This is merely for marsheling/unmarsheling, hence we attaching a `Signature` // is not needed. metadataMessage := &protobuf.ApplicationMetadataMessage{ Payload: communityDescriptionBytes, Type: protobuf.ApplicationMetadataMessage_COMMUNITY_DESCRIPTION, } appMetadataMsg, err := proto.Marshal(metadataMessage) if err != nil { return nil, err } if !common.IsPubKeyEqual(community.PublicKey(), signer) && !community.IsMemberAdmin(signer) { return nil, ErrNotAuthorized } _, err = community.UpdateCommunityDescription(request.Community, appMetadataMsg) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if request.Accepted { err = m.markRequestToJoin(&m.identity.PublicKey, community) if err != nil { return nil, err } } else { err = m.persistence.SetRequestToJoinState(pkString, community.ID(), RequestToJoinStateDeclined) if err != nil { return nil, err } } return m.persistence.GetRequestToJoinByPkAndCommunityID(pkString, community.ID()) } func (m *Manager) HandleCommunityRequestToLeave(signer *ecdsa.PublicKey, proto *protobuf.CommunityRequestToLeave) error { requestToLeave := NewRequestToLeave(common.PubkeyToHex(signer), proto) if err := m.persistence.SaveRequestToLeave(requestToLeave); err != nil { return err } // Ensure corresponding requestToJoin clock is older than requestToLeave requestToJoin, err := m.persistence.GetRequestToJoin(requestToLeave.ID) if err != nil { return err } if requestToJoin.Clock > requestToLeave.Clock { return ErrOldRequestToLeave } return nil } func (m *Manager) HandleWrappedCommunityDescriptionMessage(payload []byte) (*CommunityResponse, error) { m.logger.Debug("Handling wrapped community description message") applicationMetadataMessage := &protobuf.ApplicationMetadataMessage{} err := proto.Unmarshal(payload, applicationMetadataMessage) if err != nil { return nil, err } if applicationMetadataMessage.Type != protobuf.ApplicationMetadataMessage_COMMUNITY_DESCRIPTION { return nil, ErrInvalidMessage } signer, err := applicationMetadataMessage.RecoverKey() if err != nil { return nil, err } description := &protobuf.CommunityDescription{} err = proto.Unmarshal(applicationMetadataMessage.Payload, description) if err != nil { return nil, err } return m.HandleCommunityDescriptionMessage(signer, description, payload) } func (m *Manager) JoinCommunity(id types.HexBytes, forceJoin bool) (*Community, error) { community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } if !forceJoin && community.Joined() { // Nothing to do, we are already joined return community, ErrOrgAlreadyJoined } community.Join() err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } return community, nil } func (m *Manager) SpectateCommunity(id types.HexBytes) (*Community, error) { community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } community.Spectate() if err = m.persistence.SaveCommunity(community); err != nil { return nil, err } return community, nil } func (m *Manager) GetMagnetlinkMessageClock(communityID types.HexBytes) (uint64, error) { return m.persistence.GetMagnetlinkMessageClock(communityID) } func (m *Manager) GetRequestToJoinIDByPkAndCommunityID(pk *ecdsa.PublicKey, communityID []byte) ([]byte, error) { return m.persistence.GetRequestToJoinIDByPkAndCommunityID(common.PubkeyToHex(pk), communityID) } func (m *Manager) UpdateCommunityDescriptionMagnetlinkMessageClock(communityID types.HexBytes, clock uint64) error { community, err := m.GetByIDString(communityID.String()) if err != nil { return err } community.config.CommunityDescription.ArchiveMagnetlinkClock = clock return m.persistence.SaveCommunity(community) } func (m *Manager) UpdateMagnetlinkMessageClock(communityID types.HexBytes, clock uint64) error { return m.persistence.UpdateMagnetlinkMessageClock(communityID, clock) } func (m *Manager) UpdateLastSeenMagnetlink(communityID types.HexBytes, magnetlinkURI string) error { return m.persistence.UpdateLastSeenMagnetlink(communityID, magnetlinkURI) } func (m *Manager) GetLastSeenMagnetlink(communityID types.HexBytes) (string, error) { return m.persistence.GetLastSeenMagnetlink(communityID) } func (m *Manager) LeaveCommunity(id types.HexBytes) (*Community, error) { community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } community.RemoveOurselvesFromOrg(&m.identity.PublicKey) community.Leave() if err = m.persistence.SaveCommunity(community); err != nil { return nil, err } return community, nil } func (m *Manager) inviteUsersToCommunity(community *Community, pks []*ecdsa.PublicKey) (*Community, error) { var invitations []*protobuf.CommunityInvitation for _, pk := range pks { invitation, err := community.InviteUserToOrg(pk) if err != nil { return nil, err } // We mark the user request (if any) as completed if err := m.markRequestToJoin(pk, community); err != nil { return nil, err } invitations = append(invitations, invitation) } err := m.persistence.SaveCommunity(community) if err != nil { return nil, err } m.publish(&Subscription{Community: community, Invitations: invitations}) return community, nil } func (m *Manager) InviteUsersToCommunity(communityID types.HexBytes, pks []*ecdsa.PublicKey) (*Community, error) { community, err := m.GetByID(communityID) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } return m.inviteUsersToCommunity(community, pks) } func (m *Manager) AddMemberOwnerToCommunity(communityID types.HexBytes, pk *ecdsa.PublicKey) (*Community, error) { community, err := m.GetByID(communityID) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } _, err = community.AddMember(pk, []protobuf.CommunityMember_Roles{protobuf.CommunityMember_ROLE_OWNER}) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } m.publish(&Subscription{Community: community}) return community, nil } func (m *Manager) RemoveUserFromCommunity(id types.HexBytes, pk *ecdsa.PublicKey) (*Community, error) { community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } _, err = community.RemoveUserFromOrg(pk) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToKickCommunityMemberAdminEvent(common.PubkeyToHex(pk))}) } return community, nil } func (m *Manager) UnbanUserFromCommunity(request *requests.UnbanUserFromCommunity) (*Community, error) { id := request.CommunityID publicKey, err := common.HexToPubkey(request.User.String()) if err != nil { return nil, err } community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } _, err = community.UnbanUserFromCommunity(publicKey) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToUnbanCommunityMemberAdminEvent(request.User.String())}) } return community, nil } func (m *Manager) AddRoleToMember(request *requests.AddRoleToMember) (*Community, error) { id := request.CommunityID publicKey, err := common.HexToPubkey(request.User.String()) if err != nil { return nil, err } community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } if !community.hasMember(publicKey) { return nil, ErrMemberNotFound } _, err = community.AddRoleToMember(publicKey, request.Role) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } m.publish(&Subscription{Community: community}) return community, nil } func (m *Manager) RemoveRoleFromMember(request *requests.RemoveRoleFromMember) (*Community, error) { id := request.CommunityID publicKey, err := common.HexToPubkey(request.User.String()) if err != nil { return nil, err } community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } if !community.hasMember(publicKey) { return nil, ErrMemberNotFound } _, err = community.RemoveRoleFromMember(publicKey, request.Role) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } m.publish(&Subscription{Community: community}) return community, nil } func (m *Manager) BanUserFromCommunity(request *requests.BanUserFromCommunity) (*Community, error) { id := request.CommunityID publicKey, err := common.HexToPubkey(request.User.String()) if err != nil { return nil, err } community, err := m.GetByID(id) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } _, err = community.BanUserFromCommunity(publicKey) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } if community.IsOwner() { m.publish(&Subscription{Community: community}) } else if community.IsAdmin() { m.publish(&Subscription{CommunityAdminEvent: community.ToBanCommunityMemberAdminEvent(request.User.String())}) } return community, nil } func (m *Manager) GetByID(id []byte) (*Community, error) { return m.persistence.GetByID(&m.identity.PublicKey, id) } func (m *Manager) GetByIDString(idString string) (*Community, error) { id, err := types.DecodeHex(idString) if err != nil { return nil, err } return m.GetByID(id) } func (m *Manager) RequestToJoin(requester *ecdsa.PublicKey, request *requests.RequestToJoinCommunity) (*Community, *RequestToJoin, error) { community, err := m.persistence.GetByID(&m.identity.PublicKey, request.CommunityID) if err != nil { return nil, nil, err } // We don't allow requesting access if already joined if community.Joined() { return nil, nil, ErrAlreadyJoined } clock := uint64(time.Now().Unix()) requestToJoin := &RequestToJoin{ PublicKey: common.PubkeyToHex(requester), Clock: clock, ENSName: request.ENSName, CommunityID: request.CommunityID, State: RequestToJoinStatePending, Our: true, RevealedAccounts: make([]*protobuf.RevealedAccount, 0), } requestToJoin.CalculateID() if err := m.persistence.SaveRequestToJoin(requestToJoin); err != nil { return nil, nil, err } community.config.RequestedToJoinAt = uint64(time.Now().Unix()) community.AddRequestToJoin(requestToJoin) return community, requestToJoin, nil } func (m *Manager) SaveRequestToJoin(request *RequestToJoin) error { return m.persistence.SaveRequestToJoin(request) } func (m *Manager) CanceledRequestsToJoinForUser(pk *ecdsa.PublicKey) ([]*RequestToJoin, error) { return m.persistence.CanceledRequestsToJoinForUser(common.PubkeyToHex(pk)) } func (m *Manager) PendingRequestsToJoin() ([]*RequestToJoin, error) { return m.persistence.PendingRequestsToJoin() } func (m *Manager) PendingRequestsToJoinForUser(pk *ecdsa.PublicKey) ([]*RequestToJoin, error) { return m.persistence.PendingRequestsToJoinForUser(common.PubkeyToHex(pk)) } func (m *Manager) PendingRequestsToJoinForCommunity(id types.HexBytes) ([]*RequestToJoin, error) { m.logger.Info("fetching pending invitations", zap.String("community-id", id.String())) return m.persistence.PendingRequestsToJoinForCommunity(id) } func (m *Manager) DeclinedRequestsToJoinForCommunity(id types.HexBytes) ([]*RequestToJoin, error) { m.logger.Info("fetching declined invitations", zap.String("community-id", id.String())) return m.persistence.DeclinedRequestsToJoinForCommunity(id) } func (m *Manager) CanceledRequestsToJoinForCommunity(id types.HexBytes) ([]*RequestToJoin, error) { m.logger.Info("fetching canceled invitations", zap.String("community-id", id.String())) return m.persistence.CanceledRequestsToJoinForCommunity(id) } func (m *Manager) AcceptedRequestsToJoinForCommunity(id types.HexBytes) ([]*RequestToJoin, error) { m.logger.Info("fetching canceled invitations", zap.String("community-id", id.String())) return m.persistence.AcceptedRequestsToJoinForCommunity(id) } func (m *Manager) CanPost(pk *ecdsa.PublicKey, communityID string, chatID string, grant []byte) (bool, error) { community, err := m.GetByIDString(communityID) if err != nil { return false, err } if community == nil { return false, nil } return community.CanPost(pk, chatID, grant) } func (m *Manager) IsEncrypted(communityID string) (bool, error) { community, err := m.GetByIDString(communityID) if err != nil { return false, err } return community.Encrypted(), nil } func (m *Manager) ShouldHandleSyncCommunity(community *protobuf.SyncCommunity) (bool, error) { return m.persistence.ShouldHandleSyncCommunity(community) } func (m *Manager) ShouldHandleSyncCommunitySettings(communitySettings *protobuf.SyncCommunitySettings) (bool, error) { return m.persistence.ShouldHandleSyncCommunitySettings(communitySettings) } func (m *Manager) HandleSyncCommunitySettings(syncCommunitySettings *protobuf.SyncCommunitySettings) (*CommunitySettings, error) { id, err := types.DecodeHex(syncCommunitySettings.CommunityId) if err != nil { return nil, err } settings, err := m.persistence.GetCommunitySettingsByID(id) if err != nil { return nil, err } if settings == nil { settings = &CommunitySettings{ CommunityID: syncCommunitySettings.CommunityId, HistoryArchiveSupportEnabled: syncCommunitySettings.HistoryArchiveSupportEnabled, Clock: syncCommunitySettings.Clock, } } if syncCommunitySettings.Clock > settings.Clock { settings.CommunityID = syncCommunitySettings.CommunityId settings.HistoryArchiveSupportEnabled = syncCommunitySettings.HistoryArchiveSupportEnabled settings.Clock = syncCommunitySettings.Clock } err = m.persistence.SaveCommunitySettings(*settings) if err != nil { return nil, err } return settings, nil } func (m *Manager) SetSyncClock(id []byte, clock uint64) error { return m.persistence.SetSyncClock(id, clock) } func (m *Manager) SetPrivateKey(id []byte, privKey *ecdsa.PrivateKey) error { return m.persistence.SetPrivateKey(id, privKey) } func (m *Manager) GetSyncedRawCommunity(id []byte) (*RawCommunityRow, error) { return m.persistence.getSyncedRawCommunity(id) } func (m *Manager) GetCommunitySettingsByID(id types.HexBytes) (*CommunitySettings, error) { return m.persistence.GetCommunitySettingsByID(id) } func (m *Manager) GetCommunitiesSettings() ([]CommunitySettings, error) { return m.persistence.GetCommunitiesSettings() } func (m *Manager) SaveCommunitySettings(settings CommunitySettings) error { return m.persistence.SaveCommunitySettings(settings) } func (m *Manager) CommunitySettingsExist(id types.HexBytes) (bool, error) { return m.persistence.CommunitySettingsExist(id) } func (m *Manager) DeleteCommunitySettings(id types.HexBytes) error { return m.persistence.DeleteCommunitySettings(id) } func (m *Manager) UpdateCommunitySettings(settings CommunitySettings) error { return m.persistence.UpdateCommunitySettings(settings) } func (m *Manager) GetAdminCommunitiesChatIDs() (map[string]bool, error) { adminCommunities, err := m.Created() if err != nil { return nil, err } chatIDs := make(map[string]bool) for _, c := range adminCommunities { if c.Joined() { for _, id := range c.ChatIDs() { chatIDs[id] = true } } } return chatIDs, nil } func (m *Manager) IsAdminCommunityByID(communityID types.HexBytes) (bool, error) { pubKey, err := crypto.DecompressPubkey(communityID) if err != nil { return false, err } return m.IsAdminCommunity(pubKey) } func (m *Manager) IsAdminCommunity(pubKey *ecdsa.PublicKey) (bool, error) { adminCommunities, err := m.Created() if err != nil { return false, err } for _, c := range adminCommunities { if c.PrivateKey().PublicKey.Equal(pubKey) { return true, nil } } return false, nil } func (m *Manager) IsJoinedCommunity(pubKey *ecdsa.PublicKey) (bool, error) { community, err := m.GetByID(crypto.CompressPubkey(pubKey)) if err != nil { return false, err } return community != nil && community.Joined(), nil } func (m *Manager) GetCommunityChatsFilters(communityID types.HexBytes) ([]*transport.Filter, error) { chatIDs, err := m.persistence.GetCommunityChatIDs(communityID) if err != nil { return nil, err } filters := []*transport.Filter{} for _, cid := range chatIDs { filters = append(filters, m.transport.FilterByChatID(cid)) } return filters, nil } func (m *Manager) GetCommunityChatsTopics(communityID types.HexBytes) ([]types.TopicType, error) { filters, err := m.GetCommunityChatsFilters(communityID) if err != nil { return nil, err } topics := []types.TopicType{} for _, filter := range filters { topics = append(topics, filter.Topic) } return topics, nil } func (m *Manager) StoreWakuMessage(message *types.Message) error { return m.persistence.SaveWakuMessage(message) } func (m *Manager) StoreWakuMessages(messages []*types.Message) error { return m.persistence.SaveWakuMessages(messages) } func (m *Manager) GetLatestWakuMessageTimestamp(topics []types.TopicType) (uint64, error) { return m.persistence.GetLatestWakuMessageTimestamp(topics) } func (m *Manager) GetOldestWakuMessageTimestamp(topics []types.TopicType) (uint64, error) { return m.persistence.GetOldestWakuMessageTimestamp(topics) } func (m *Manager) GetLastMessageArchiveEndDate(communityID types.HexBytes) (uint64, error) { return m.persistence.GetLastMessageArchiveEndDate(communityID) } func (m *Manager) GetHistoryArchivePartitionStartTimestamp(communityID types.HexBytes) (uint64, error) { filters, err := m.GetCommunityChatsFilters(communityID) if err != nil { m.LogStdout("failed to get community chats filters", zap.Error(err)) return 0, err } if len(filters) == 0 { // If we don't have chat filters, we likely don't have any chats // associated to this community, which means there's nothing more // to do here return 0, nil } topics := []types.TopicType{} for _, filter := range filters { topics = append(topics, filter.Topic) } lastArchiveEndDateTimestamp, err := m.GetLastMessageArchiveEndDate(communityID) if err != nil { m.LogStdout("failed to get last archive end date", zap.Error(err)) return 0, err } if lastArchiveEndDateTimestamp == 0 { // If we don't have a tracked last message archive end date, it // means we haven't created an archive before, which means // the next thing to look at is the oldest waku message timestamp for // this community lastArchiveEndDateTimestamp, err = m.GetOldestWakuMessageTimestamp(topics) if err != nil { m.LogStdout("failed to get oldest waku message timestamp", zap.Error(err)) return 0, err } if lastArchiveEndDateTimestamp == 0 { // This means there's no waku message stored for this community so far // (even after requesting possibly missed messages), so no messages exist yet that can be archived m.LogStdout("can't find valid `lastArchiveEndTimestamp`") return 0, nil } } return lastArchiveEndDateTimestamp, nil } func (m *Manager) CreateAndSeedHistoryArchive(communityID types.HexBytes, topics []types.TopicType, startDate time.Time, endDate time.Time, partition time.Duration, encrypt bool) error { m.UnseedHistoryArchiveTorrent(communityID) _, err := m.CreateHistoryArchiveTorrentFromDB(communityID, topics, startDate, endDate, partition, encrypt) if err != nil { return err } return m.SeedHistoryArchiveTorrent(communityID) } func (m *Manager) StartHistoryArchiveTasksInterval(community *Community, interval time.Duration) { id := community.IDString() if _, exists := m.historyArchiveTasks.Load(id); exists { m.LogStdout("history archive tasks interval already in progres", zap.String("id", id)) return } cancel := make(chan struct{}) m.historyArchiveTasks.Store(id, cancel) m.historyArchiveTasksWaitGroup.Add(1) ticker := time.NewTicker(interval) defer ticker.Stop() m.LogStdout("starting history archive tasks interval", zap.String("id", id)) for { select { case <-ticker.C: m.LogStdout("starting archive task...", zap.String("id", id)) lastArchiveEndDateTimestamp, err := m.GetHistoryArchivePartitionStartTimestamp(community.ID()) if err != nil { m.LogStdout("failed to get last archive end date", zap.Error(err)) continue } if lastArchiveEndDateTimestamp == 0 { // This means there are no waku messages for this community, // so nothing to do here m.LogStdout("couldn't determine archive start date - skipping") continue } topics, err := m.GetCommunityChatsTopics(community.ID()) if err != nil { m.LogStdout("failed to get community chat topics ", zap.Error(err)) continue } ts := time.Now().Unix() to := time.Unix(ts, 0) lastArchiveEndDate := time.Unix(int64(lastArchiveEndDateTimestamp), 0) err = m.CreateAndSeedHistoryArchive(community.ID(), topics, lastArchiveEndDate, to, interval, community.Encrypted()) if err != nil { m.LogStdout("failed to create and seed history archive", zap.Error(err)) continue } case <-cancel: m.UnseedHistoryArchiveTorrent(community.ID()) m.historyArchiveTasks.Delete(id) m.historyArchiveTasksWaitGroup.Done() return } } } func (m *Manager) StopHistoryArchiveTasksIntervals() { m.historyArchiveTasks.Range(func(_, task interface{}) bool { close(task.(chan struct{})) // Need to cast to the chan return true }) // Stoping archive interval tasks is async, so we need // to wait for all of them to be closed before we shutdown // the torrent client m.historyArchiveTasksWaitGroup.Wait() } func (m *Manager) StopHistoryArchiveTasksInterval(communityID types.HexBytes) { task, exists := m.historyArchiveTasks.Load(communityID.String()) if exists { m.logger.Info("Stopping history archive tasks interval", zap.Any("id", communityID.String())) close(task.(chan struct{})) // Need to cast to the chan } } type EncodedArchiveData struct { padding int bytes []byte } func (m *Manager) CreateHistoryArchiveTorrentFromMessages(communityID types.HexBytes, messages []*types.Message, topics []types.TopicType, startDate time.Time, endDate time.Time, partition time.Duration, encrypt bool) ([]string, error) { return m.CreateHistoryArchiveTorrent(communityID, messages, topics, startDate, endDate, partition, encrypt) } func (m *Manager) CreateHistoryArchiveTorrentFromDB(communityID types.HexBytes, topics []types.TopicType, startDate time.Time, endDate time.Time, partition time.Duration, encrypt bool) ([]string, error) { return m.CreateHistoryArchiveTorrent(communityID, make([]*types.Message, 0), topics, startDate, endDate, partition, encrypt) } func (m *Manager) CreateHistoryArchiveTorrent(communityID types.HexBytes, msgs []*types.Message, topics []types.TopicType, startDate time.Time, endDate time.Time, partition time.Duration, encrypt bool) ([]string, error) { loadFromDB := len(msgs) == 0 from := startDate to := from.Add(partition) if to.After(endDate) { to = endDate } archiveDir := m.torrentConfig.DataDir + "/" + communityID.String() torrentDir := m.torrentConfig.TorrentDir indexPath := archiveDir + "/index" dataPath := archiveDir + "/data" wakuMessageArchiveIndexProto := &protobuf.WakuMessageArchiveIndex{} wakuMessageArchiveIndex := make(map[string]*protobuf.WakuMessageArchiveIndexMetadata) archiveIDs := make([]string, 0) if _, err := os.Stat(archiveDir); os.IsNotExist(err) { err := os.MkdirAll(archiveDir, 0700) if err != nil { return archiveIDs, err } } if _, err := os.Stat(torrentDir); os.IsNotExist(err) { err := os.MkdirAll(torrentDir, 0700) if err != nil { return archiveIDs, err } } _, err := os.Stat(indexPath) if err == nil { wakuMessageArchiveIndexProto, err = m.LoadHistoryArchiveIndexFromFile(m.identity, communityID) if err != nil { return archiveIDs, err } } var offset uint64 = 0 for hash, metadata := range wakuMessageArchiveIndexProto.Archives { offset = offset + metadata.Size wakuMessageArchiveIndex[hash] = metadata } var encodedArchives []*EncodedArchiveData topicsAsByteArrays := topicsAsByteArrays(topics) m.publish(&Subscription{CreatingHistoryArchivesSignal: &signal.CreatingHistoryArchivesSignal{ CommunityID: communityID.String(), }}) m.LogStdout("creating archives", zap.Any("startDate", startDate), zap.Any("endDate", endDate), zap.Duration("partition", partition), ) for { if from.Equal(endDate) || from.After(endDate) { break } m.LogStdout("creating message archive", zap.Any("from", from), zap.Any("to", to), ) var messages []types.Message if loadFromDB { messages, err = m.persistence.GetWakuMessagesByFilterTopic(topics, uint64(from.Unix()), uint64(to.Unix())) if err != nil { return archiveIDs, err } } else { for _, msg := range msgs { if int64(msg.Timestamp) >= from.Unix() && int64(msg.Timestamp) < to.Unix() { messages = append(messages, *msg) } } } if len(messages) == 0 { // No need to create an archive with zero messages m.LogStdout("no messages in this partition") from = to to = to.Add(partition) if to.After(endDate) { to = endDate } continue } // Not only do we partition messages, we also chunk them // roughly by size, such that each chunk will not exceed a given // size and archive data doesn't get too big messageChunks := make([][]types.Message, 0) currentChunkSize := 0 currentChunk := make([]types.Message, 0) for _, msg := range messages { msgSize := len(msg.Payload) + len(msg.Sig) if msgSize > maxArchiveSizeInBytes { // we drop messages this big continue } if currentChunkSize+msgSize > maxArchiveSizeInBytes { messageChunks = append(messageChunks, currentChunk) currentChunk = make([]types.Message, 0) currentChunkSize = 0 } currentChunk = append(currentChunk, msg) currentChunkSize = currentChunkSize + msgSize } messageChunks = append(messageChunks, currentChunk) for _, messages := range messageChunks { wakuMessageArchive := m.createWakuMessageArchive(from, to, messages, topicsAsByteArrays) encodedArchive, err := proto.Marshal(wakuMessageArchive) if err != nil { return archiveIDs, err } if encrypt { messageSpec, err := m.encryptor.BuildHashRatchetMessage(communityID, encodedArchive) if err != nil { return archiveIDs, err } encodedArchive, err = proto.Marshal(messageSpec.Message) if err != nil { return archiveIDs, err } } rawSize := len(encodedArchive) padding := 0 size := 0 if rawSize > pieceLength { size = rawSize + pieceLength - (rawSize % pieceLength) padding = size - rawSize } else { padding = pieceLength - rawSize size = rawSize + padding } wakuMessageArchiveIndexMetadata := &protobuf.WakuMessageArchiveIndexMetadata{ Metadata: wakuMessageArchive.Metadata, Offset: offset, Size: uint64(size), Padding: uint64(padding), } wakuMessageArchiveIndexMetadataBytes, err := proto.Marshal(wakuMessageArchiveIndexMetadata) if err != nil { return archiveIDs, err } archiveID := crypto.Keccak256Hash(wakuMessageArchiveIndexMetadataBytes).String() archiveIDs = append(archiveIDs, archiveID) wakuMessageArchiveIndex[archiveID] = wakuMessageArchiveIndexMetadata encodedArchives = append(encodedArchives, &EncodedArchiveData{bytes: encodedArchive, padding: padding}) offset = offset + uint64(rawSize) + uint64(padding) } from = to to = to.Add(partition) if to.After(endDate) { to = endDate } } if len(encodedArchives) > 0 { dataBytes := make([]byte, 0) for _, encodedArchiveData := range encodedArchives { dataBytes = append(dataBytes, encodedArchiveData.bytes...) dataBytes = append(dataBytes, make([]byte, encodedArchiveData.padding)...) } wakuMessageArchiveIndexProto.Archives = wakuMessageArchiveIndex indexBytes, err := proto.Marshal(wakuMessageArchiveIndexProto) if err != nil { return archiveIDs, err } if encrypt { messageSpec, err := m.encryptor.BuildHashRatchetMessage(communityID, indexBytes) if err != nil { return archiveIDs, err } indexBytes, err = proto.Marshal(messageSpec.Message) if err != nil { return archiveIDs, err } } err = os.WriteFile(indexPath, indexBytes, 0644) // nolint: gosec if err != nil { return archiveIDs, err } file, err := os.OpenFile(dataPath, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644) if err != nil { return archiveIDs, err } defer file.Close() _, err = file.Write(dataBytes) if err != nil { return archiveIDs, err } metaInfo := metainfo.MetaInfo{ AnnounceList: defaultAnnounceList, } metaInfo.SetDefaults() metaInfo.CreatedBy = common.PubkeyToHex(&m.identity.PublicKey) info := metainfo.Info{ PieceLength: int64(pieceLength), } err = info.BuildFromFilePath(archiveDir) if err != nil { return archiveIDs, err } metaInfo.InfoBytes, err = bencode.Marshal(info) if err != nil { return archiveIDs, err } metaInfoBytes, err := bencode.Marshal(metaInfo) if err != nil { return archiveIDs, err } err = os.WriteFile(m.torrentFile(communityID.String()), metaInfoBytes, 0644) // nolint: gosec if err != nil { return archiveIDs, err } m.LogStdout("torrent created", zap.Any("from", startDate.Unix()), zap.Any("to", endDate.Unix())) m.publish(&Subscription{ HistoryArchivesCreatedSignal: &signal.HistoryArchivesCreatedSignal{ CommunityID: communityID.String(), From: int(startDate.Unix()), To: int(endDate.Unix()), }, }) } else { m.LogStdout("no archives created") m.publish(&Subscription{ NoHistoryArchivesCreatedSignal: &signal.NoHistoryArchivesCreatedSignal{ CommunityID: communityID.String(), From: int(startDate.Unix()), To: int(endDate.Unix()), }, }) } lastMessageArchiveEndDate, err := m.persistence.GetLastMessageArchiveEndDate(communityID) if err != nil { return archiveIDs, err } if lastMessageArchiveEndDate > 0 { err = m.persistence.UpdateLastMessageArchiveEndDate(communityID, uint64(from.Unix())) } else { err = m.persistence.SaveLastMessageArchiveEndDate(communityID, uint64(from.Unix())) } if err != nil { return archiveIDs, err } return archiveIDs, nil } func (m *Manager) SeedHistoryArchiveTorrent(communityID types.HexBytes) error { m.UnseedHistoryArchiveTorrent(communityID) id := communityID.String() torrentFile := m.torrentFile(id) metaInfo, err := metainfo.LoadFromFile(torrentFile) if err != nil { return err } info, err := metaInfo.UnmarshalInfo() if err != nil { return err } hash := metaInfo.HashInfoBytes() m.torrentTasks[id] = hash if err != nil { return err } torrent, err := m.torrentClient.AddTorrent(metaInfo) if err != nil { return err } torrent.DownloadAll() m.publish(&Subscription{ HistoryArchivesSeedingSignal: &signal.HistoryArchivesSeedingSignal{ CommunityID: communityID.String(), }, }) magnetLink := metaInfo.Magnet(nil, &info).String() m.LogStdout("seeding torrent", zap.String("id", id), zap.String("magnetLink", magnetLink)) return nil } func (m *Manager) UnseedHistoryArchiveTorrent(communityID types.HexBytes) { id := communityID.String() hash, exists := m.torrentTasks[id] if exists { torrent, ok := m.torrentClient.Torrent(hash) if ok { m.logger.Debug("Unseeding and dropping torrent for community: ", zap.Any("id", id)) torrent.Drop() delete(m.torrentTasks, id) m.publish(&Subscription{ HistoryArchivesUnseededSignal: &signal.HistoryArchivesUnseededSignal{ CommunityID: id, }, }) } } } func (m *Manager) IsSeedingHistoryArchiveTorrent(communityID types.HexBytes) bool { id := communityID.String() hash := m.torrentTasks[id] torrent, ok := m.torrentClient.Torrent(hash) return ok && torrent.Seeding() } func (m *Manager) GetHistoryArchiveDownloadTask(communityID string) *HistoryArchiveDownloadTask { return m.historyArchiveDownloadTasks[communityID] } func (m *Manager) DeleteHistoryArchiveDownloadTask(communityID string) { delete(m.historyArchiveDownloadTasks, communityID) } func (m *Manager) AddHistoryArchiveDownloadTask(communityID string, task *HistoryArchiveDownloadTask) { m.historyArchiveDownloadTasks[communityID] = task } type HistoryArchiveDownloadTaskInfo struct { TotalDownloadedArchivesCount int TotalArchivesCount int Cancelled bool } func (m *Manager) DownloadHistoryArchivesByMagnetlink(communityID types.HexBytes, magnetlink string, cancelTask chan struct{}) (*HistoryArchiveDownloadTaskInfo, error) { id := communityID.String() ml, err := metainfo.ParseMagnetUri(magnetlink) if err != nil { return nil, err } m.logger.Debug("adding torrent via magnetlink for community", zap.String("id", id), zap.String("magnetlink", magnetlink)) torrent, err := m.torrentClient.AddMagnet(magnetlink) if err != nil { return nil, err } downloadTaskInfo := &HistoryArchiveDownloadTaskInfo{ TotalDownloadedArchivesCount: 0, TotalArchivesCount: 0, Cancelled: false, } m.torrentTasks[id] = ml.InfoHash timeout := time.After(20 * time.Second) m.LogStdout("fetching torrent info", zap.String("magnetlink", magnetlink)) select { case <-timeout: return nil, ErrTorrentTimedout case <-cancelTask: m.LogStdout("cancelled fetching torrent info") downloadTaskInfo.Cancelled = true return downloadTaskInfo, nil case <-torrent.GotInfo(): files := torrent.Files() i, ok := findIndexFile(files) if !ok { // We're dealing with a malformed torrent, so don't do anything return nil, errors.New("malformed torrent data") } indexFile := files[i] indexFile.Download() m.LogStdout("downloading history archive index") ticker := time.NewTicker(100 * time.Millisecond) defer ticker.Stop() for { select { case <-cancelTask: m.LogStdout("cancelled downloading archive index") downloadTaskInfo.Cancelled = true return downloadTaskInfo, nil case <-ticker.C: if indexFile.BytesCompleted() == indexFile.Length() { index, err := m.LoadHistoryArchiveIndexFromFile(m.identity, communityID) if err != nil { return nil, err } existingArchiveIDs, err := m.persistence.GetDownloadedMessageArchiveIDs(communityID) if err != nil { return nil, err } if len(existingArchiveIDs) == len(index.Archives) { m.LogStdout("download cancelled, no new archives") return downloadTaskInfo, nil } downloadTaskInfo.TotalDownloadedArchivesCount = len(existingArchiveIDs) downloadTaskInfo.TotalArchivesCount = len(index.Archives) archiveHashes := make(archiveMDSlice, 0, downloadTaskInfo.TotalArchivesCount) for hash, metadata := range index.Archives { archiveHashes = append(archiveHashes, &archiveMetadata{hash: hash, from: metadata.Metadata.From}) } sort.Sort(sort.Reverse(archiveHashes)) m.publish(&Subscription{ DownloadingHistoryArchivesStartedSignal: &signal.DownloadingHistoryArchivesStartedSignal{ CommunityID: communityID.String(), }, }) for _, hd := range archiveHashes { hash := hd.hash hasArchive := false for _, existingHash := range existingArchiveIDs { if existingHash == hash { hasArchive = true break } } if hasArchive { continue } metadata := index.Archives[hash] startIndex := int(metadata.Offset) / pieceLength endIndex := startIndex + int(metadata.Size)/pieceLength downloadMsg := fmt.Sprintf("downloading data for message archive (%d/%d)", downloadTaskInfo.TotalDownloadedArchivesCount+1, downloadTaskInfo.TotalArchivesCount) m.LogStdout(downloadMsg, zap.String("hash", hash)) m.LogStdout("pieces (start, end)", zap.Any("startIndex", startIndex), zap.Any("endIndex", endIndex-1)) torrent.DownloadPieces(startIndex, endIndex) piecesCompleted := make(map[int]bool) for i = startIndex; i < endIndex; i++ { piecesCompleted[i] = false } psc := torrent.SubscribePieceStateChanges() downloadTicker := time.NewTicker(1 * time.Second) defer downloadTicker.Stop() downloadLoop: for { select { case <-downloadTicker.C: done := true for i = startIndex; i < endIndex; i++ { piecesCompleted[i] = torrent.PieceState(i).Complete if !piecesCompleted[i] { done = false } } if done { psc.Close() break downloadLoop } case <-cancelTask: m.LogStdout("downloading archive data interrupted") downloadTaskInfo.Cancelled = true return downloadTaskInfo, nil } } downloadTaskInfo.TotalDownloadedArchivesCount++ err = m.persistence.SaveMessageArchiveID(communityID, hash) if err != nil { m.LogStdout("couldn't save message archive ID", zap.Error(err)) continue } m.publish(&Subscription{ HistoryArchiveDownloadedSignal: &signal.HistoryArchiveDownloadedSignal{ CommunityID: communityID.String(), From: int(metadata.Metadata.From), To: int(metadata.Metadata.To), }, }) } m.publish(&Subscription{ HistoryArchivesSeedingSignal: &signal.HistoryArchivesSeedingSignal{ CommunityID: communityID.String(), }, }) m.LogStdout("finished downloading archives") return downloadTaskInfo, nil } } } } } func (m *Manager) GetMessageArchiveIDsToImport(communityID types.HexBytes) ([]string, error) { return m.persistence.GetMessageArchiveIDsToImport(communityID) } func (m *Manager) ExtractMessagesFromHistoryArchive(communityID types.HexBytes, archiveID string) ([]*protobuf.WakuMessage, error) { id := communityID.String() index, err := m.LoadHistoryArchiveIndexFromFile(m.identity, communityID) if err != nil { return nil, err } dataFile, err := os.Open(m.archiveDataFile(id)) if err != nil { return nil, err } defer dataFile.Close() m.LogStdout("extracting messages from history archive", zap.String("archive id", archiveID)) metadata := index.Archives[archiveID] _, err = dataFile.Seek(int64(metadata.Offset), 0) if err != nil { m.LogStdout("failed to seek archive data file", zap.Error(err)) return nil, err } data := make([]byte, metadata.Size-metadata.Padding) m.LogStdout("loading history archive data into memory", zap.Float64("data_size_MB", float64(metadata.Size-metadata.Padding)/1024.0/1024.0)) _, err = dataFile.Read(data) if err != nil { m.LogStdout("failed failed to read archive data", zap.Error(err)) return nil, err } archive := &protobuf.WakuMessageArchive{} err = proto.Unmarshal(data, archive) if err != nil { // The archive data might eb encrypted so we try to decrypt instead first var protocolMessage encryption.ProtocolMessage err := proto.Unmarshal(data, &protocolMessage) if err != nil { m.LogStdout("failed to unmarshal protocol message", zap.Error(err)) return nil, err } pk, err := crypto.DecompressPubkey(communityID) if err != nil { m.logger.Debug("failed to decompress community pubkey", zap.Error(err)) return nil, err } decryptedBytes, err := m.encryptor.HandleMessage(m.identity, pk, &protocolMessage, make([]byte, 0)) if err != nil { m.LogStdout("failed to decrypt message archive", zap.Error(err)) return nil, err } err = proto.Unmarshal(decryptedBytes.DecryptedMessage, archive) if err != nil { m.LogStdout("failed to unmarshal message archive data", zap.Error(err)) return nil, err } } return archive.Messages, nil } func (m *Manager) SetMessageArchiveIDImported(communityID types.HexBytes, hash string, imported bool) error { return m.persistence.SetMessageArchiveIDImported(communityID, hash, imported) } func (m *Manager) GetHistoryArchiveMagnetlink(communityID types.HexBytes) (string, error) { id := communityID.String() torrentFile := m.torrentFile(id) metaInfo, err := metainfo.LoadFromFile(torrentFile) if err != nil { return "", err } info, err := metaInfo.UnmarshalInfo() if err != nil { return "", err } return metaInfo.Magnet(nil, &info).String(), nil } func (m *Manager) createWakuMessageArchive(from time.Time, to time.Time, messages []types.Message, topics [][]byte) *protobuf.WakuMessageArchive { var wakuMessages []*protobuf.WakuMessage for _, msg := range messages { topic := types.TopicTypeToByteArray(msg.Topic) wakuMessage := &protobuf.WakuMessage{ Sig: msg.Sig, Timestamp: uint64(msg.Timestamp), Topic: topic, Payload: msg.Payload, Padding: msg.Padding, Hash: msg.Hash, ThirdPartyId: msg.ThirdPartyID, } wakuMessages = append(wakuMessages, wakuMessage) } metadata := protobuf.WakuMessageArchiveMetadata{ From: uint64(from.Unix()), To: uint64(to.Unix()), ContentTopic: topics, } wakuMessageArchive := &protobuf.WakuMessageArchive{ Metadata: &metadata, Messages: wakuMessages, } return wakuMessageArchive } func (m *Manager) LoadHistoryArchiveIndexFromFile(myKey *ecdsa.PrivateKey, communityID types.HexBytes) (*protobuf.WakuMessageArchiveIndex, error) { wakuMessageArchiveIndexProto := &protobuf.WakuMessageArchiveIndex{} indexPath := m.archiveIndexFile(communityID.String()) indexData, err := os.ReadFile(indexPath) if err != nil { return nil, err } err = proto.Unmarshal(indexData, wakuMessageArchiveIndexProto) if err != nil { return nil, err } if len(wakuMessageArchiveIndexProto.Archives) == 0 && len(indexData) > 0 { // This means we're dealing with an encrypted index file, so we have to decrypt it first var protocolMessage encryption.ProtocolMessage err := proto.Unmarshal(indexData, &protocolMessage) if err != nil { return nil, err } pk, err := crypto.DecompressPubkey(communityID) if err != nil { return nil, err } decryptedBytes, err := m.encryptor.HandleMessage(myKey, pk, &protocolMessage, make([]byte, 0)) if err != nil { return nil, err } err = proto.Unmarshal(decryptedBytes.DecryptedMessage, wakuMessageArchiveIndexProto) if err != nil { return nil, err } } return wakuMessageArchiveIndexProto, nil } func (m *Manager) TorrentFileExists(communityID string) bool { _, err := os.Stat(m.torrentFile(communityID)) return err == nil } func (m *Manager) torrentFile(communityID string) string { return m.torrentConfig.TorrentDir + "/" + communityID + ".torrent" } func (m *Manager) archiveIndexFile(communityID string) string { return m.torrentConfig.DataDir + "/" + communityID + "/index" } func (m *Manager) archiveDataFile(communityID string) string { return m.torrentConfig.DataDir + "/" + communityID + "/data" } func topicsAsByteArrays(topics []types.TopicType) [][]byte { var topicsAsByteArrays [][]byte for _, t := range topics { topic := types.TopicTypeToByteArray(t) topicsAsByteArrays = append(topicsAsByteArrays, topic) } return topicsAsByteArrays } func findIndexFile(files []*torrent.File) (index int, ok bool) { for i, f := range files { if f.DisplayPath() == "index" { return i, true } } return 0, false } func (m *Manager) GetCommunityTokens(communityID string) ([]*CommunityToken, error) { return m.persistence.GetCommunityTokens(communityID) } func (m *Manager) GetAllCommunityTokens() ([]*CommunityToken, error) { return m.persistence.GetAllCommunityTokens() } func (m *Manager) ImageToBase64(uri string) string { file, err := os.Open(uri) if err != nil { m.logger.Error(err.Error()) return "" } defer file.Close() payload, err := ioutil.ReadAll(file) if err != nil { m.logger.Error(err.Error()) return "" } base64img, err := images.GetPayloadDataURI(payload) if err != nil { m.logger.Error(err.Error()) return "" } return base64img } func (m *Manager) AddCommunityToken(token *CommunityToken) (*CommunityToken, error) { community, err := m.GetByIDString(token.CommunityID) if err != nil { return nil, err } if community == nil { return nil, ErrOrgNotFound } token.Base64Image = m.ImageToBase64(token.Base64Image) tokenMetadata := &protobuf.CommunityTokenMetadata{ ContractAddresses: map[uint64]string{uint64(token.ChainID): token.Address}, Description: token.Description, Image: token.Base64Image, Symbol: token.Symbol, TokenType: token.TokenType, Name: token.Name, } _, err = community.AddCommunityTokensMetadata(tokenMetadata) if err != nil { return nil, err } err = m.persistence.SaveCommunity(community) if err != nil { return nil, err } m.publish(&Subscription{Community: community}) return token, m.persistence.AddCommunityToken(token) } func (m *Manager) UpdateCommunityTokenState(chainID int, contractAddress string, deployState DeployState) error { return m.persistence.UpdateCommunityTokenState(chainID, contractAddress, deployState) } func (m *Manager) UpdateCommunityTokenSupply(chainID int, contractAddress string, supply int) error { return m.persistence.UpdateCommunityTokenSupply(chainID, contractAddress, supply) } func (m *Manager) SetCommunityActiveMembersCount(communityID string, activeMembersCount uint64) error { community, err := m.GetByIDString(communityID) if err != nil { return err } if community == nil { return ErrOrgNotFound } updated, err := community.SetActiveMembersCount(activeMembersCount) if err != nil { return err } if updated { if err = m.persistence.SaveCommunity(community); err != nil { return err } m.publish(&Subscription{Community: community}) } return nil } // UpdateCommunity takes a Community persists it and republishes it. // The clock is incremented meaning even a no change update will be republished by the admin, and parsed by the member. func (m *Manager) UpdateCommunity(c *Community) error { c.increaseClock() err := m.persistence.SaveCommunity(c) if err != nil { return err } m.publish(&Subscription{Community: c}) return nil } func combineAddressesAndChainIDs(addresses []gethcommon.Address, chainIDs []uint64) []*AccountChainIDsCombination { combinations := make([]*AccountChainIDsCombination, 0) for _, address := range addresses { combinations = append(combinations, &AccountChainIDsCombination{ Address: address, ChainIDs: chainIDs, }) } return combinations } func revealedAccountsToAccountsAndChainIDsCombination(revealedAccounts []*protobuf.RevealedAccount) []*AccountChainIDsCombination { accountsAndChainIDs := make([]*AccountChainIDsCombination, 0) for _, revealedAccount := range revealedAccounts { accountsAndChainIDs = append(accountsAndChainIDs, &AccountChainIDsCombination{ Address: gethcommon.HexToAddress(revealedAccount.Address), ChainIDs: revealedAccount.ChainIds, }) } return accountsAndChainIDs } func (m *Manager) accountsHasAdminPermission(becomeAdminPermissions []*protobuf.CommunityTokenPermission, accounts []*AccountChainIDsCombination) bool { if len(becomeAdminPermissions) > 0 { permissionResponse, err := m.checkPermissionToJoin(becomeAdminPermissions, accounts, true) if err != nil { m.logger.Warn("check admin permission failed: %v", zap.Error(err)) return false } return permissionResponse.Satisfied } return false }