status-go/protocol/communities/community_event.go

407 lines
13 KiB
Go

package communities
import (
"crypto/ecdsa"
"errors"
"time"
"github.com/golang/protobuf/proto"
"github.com/status-im/status-go/protocol/common"
"github.com/status-im/status-go/protocol/protobuf"
)
var ErrInvalidCommunityEventClock = errors.New("clock for admin event message is outdated")
func (o *Community) ToCreateChannelCommunityEvent(channelID string, channel *protobuf.CommunityChat) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CHANNEL_CREATE,
ChannelData: &protobuf.ChannelData{
ChannelId: channelID,
Channel: channel,
},
}
}
func (o *Community) ToEditChannelCommunityEvent(channelID string, channel *protobuf.CommunityChat) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CHANNEL_EDIT,
ChannelData: &protobuf.ChannelData{
ChannelId: channelID,
Channel: channel,
},
}
}
func (o *Community) ToDeleteChannelCommunityEvent(channelID string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CHANNEL_DELETE,
ChannelData: &protobuf.ChannelData{
ChannelId: channelID,
},
}
}
func (o *Community) ToReorderChannelCommunityEvent(categoryID string, channelID string, position int) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CHANNEL_REORDER,
ChannelData: &protobuf.ChannelData{
CategoryId: categoryID,
ChannelId: channelID,
Position: int32(position),
},
}
}
func (o *Community) ToCreateCategoryCommunityEvent(categoryID string, categoryName string, channelsIds []string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CATEGORY_CREATE,
CategoryData: &protobuf.CategoryData{
Name: categoryName,
CategoryId: categoryID,
ChannelsIds: channelsIds,
},
}
}
func (o *Community) ToEditCategoryCommunityEvent(categoryID string, categoryName string, channelsIds []string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CATEGORY_EDIT,
CategoryData: &protobuf.CategoryData{
Name: categoryName,
CategoryId: categoryID,
ChannelsIds: channelsIds,
},
}
}
func (o *Community) ToDeleteCategoryCommunityEvent(categoryID string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CATEGORY_DELETE,
CategoryData: &protobuf.CategoryData{
CategoryId: categoryID,
},
}
}
func (o *Community) ToReorderCategoryCommunityEvent(categoryID string, position int) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_CATEGORY_REORDER,
CategoryData: &protobuf.CategoryData{
CategoryId: categoryID,
Position: int32(position),
},
}
}
func (o *Community) ToBanCommunityMemberCommunityEvent(pubkey string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_MEMBER_BAN,
MemberToAction: pubkey,
}
}
func (o *Community) ToUnbanCommunityMemberCommunityEvent(pubkey string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_MEMBER_UNBAN,
MemberToAction: pubkey,
}
}
func (o *Community) ToKickCommunityMemberCommunityEvent(pubkey string) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_MEMBER_KICK,
MemberToAction: pubkey,
}
}
func (o *Community) ToCommunityEditCommunityEvent(description *protobuf.CommunityDescription) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_EDIT,
CommunityConfig: &protobuf.CommunityConfig{
Identity: description.Identity,
Permissions: description.Permissions,
AdminSettings: description.AdminSettings,
IntroMessage: description.IntroMessage,
OutroMessage: description.OutroMessage,
Tags: description.Tags,
},
}
}
func (o *Community) ToCommunityTokenPermissionChangeCommunityEvent(permission *protobuf.CommunityTokenPermission) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_MEMBER_TOKEN_PERMISSION_CHANGE,
TokenPermission: permission,
}
}
func (o *Community) ToCommunityTokenPermissionDeleteCommunityEvent(permission *protobuf.CommunityTokenPermission) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_MEMBER_TOKEN_PERMISSION_DELETE,
TokenPermission: permission,
}
}
func (o *Community) ToCommunityRequestToJoinAcceptCommunityEvent(changes *CommunityEventChanges) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_REQUEST_TO_JOIN_ACCEPT,
AcceptedRequestsToJoin: changes.AcceptedRequestsToJoin,
}
}
func (o *Community) ToCommunityRequestToJoinRejectCommunityEvent(changes *CommunityEventChanges) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_REQUEST_TO_JOIN_REJECT,
RejectedRequestsToJoin: changes.RejectedRequestsToJoin,
}
}
func (o *Community) ToAddTokenMetadataCommunityEvent(tokenMetadata *protobuf.CommunityTokenMetadata) *CommunityEvent {
return &CommunityEvent{
CommunityEventClock: o.NewCommunityEventClock(),
Type: protobuf.CommunityEvent_COMMUNITY_TOKEN_ADD,
TokenMetadata: tokenMetadata,
}
}
func (o *Community) UpdateCommunityByEvents(communityEventMessage *CommunityEventsMessage) error {
o.mutex.Lock()
defer o.mutex.Unlock()
// Validate that EventsBaseCommunityDescription was signed by the control node
description, err := validateAndGetEventsMessageCommunityDescription(communityEventMessage.EventsBaseCommunityDescription, o.config.ID)
if err != nil {
return err
}
if description.Clock != o.config.CommunityDescription.Clock {
return ErrInvalidCommunityEventClock
}
// Merge community events to existing community. Community events must be stored to the db
// during saving the community
o.mergeCommunityEvents(communityEventMessage)
o.config.CommunityDescription = description
o.config.CommunityDescriptionProtocolMessage = communityEventMessage.EventsBaseCommunityDescription
// Update the copy of the CommunityDescription by community events
err = o.updateCommunityDescriptionByEvents()
if err != nil {
return err
}
return nil
}
func (o *Community) updateCommunityDescriptionByEvents() error {
if o.config.EventsData == nil {
return nil
}
for _, event := range o.config.EventsData.Events {
err := o.updateCommunityDescriptionByCommunityEvent(event)
if err != nil {
return err
}
}
return nil
}
func (o *Community) updateCommunityDescriptionByCommunityEvent(communityEvent CommunityEvent) error {
switch communityEvent.Type {
case protobuf.CommunityEvent_COMMUNITY_EDIT:
o.config.CommunityDescription.Identity = communityEvent.CommunityConfig.Identity
o.config.CommunityDescription.Permissions = communityEvent.CommunityConfig.Permissions
o.config.CommunityDescription.AdminSettings = communityEvent.CommunityConfig.AdminSettings
o.config.CommunityDescription.IntroMessage = communityEvent.CommunityConfig.IntroMessage
o.config.CommunityDescription.OutroMessage = communityEvent.CommunityConfig.OutroMessage
o.config.CommunityDescription.Tags = communityEvent.CommunityConfig.Tags
case protobuf.CommunityEvent_COMMUNITY_MEMBER_TOKEN_PERMISSION_CHANGE:
if o.IsControlNode() {
_, err := o.upsertTokenPermission(communityEvent.TokenPermission)
if err != nil {
return err
}
}
case protobuf.CommunityEvent_COMMUNITY_MEMBER_TOKEN_PERMISSION_DELETE:
if o.IsControlNode() {
_, err := o.deleteTokenPermission(communityEvent.TokenPermission.Id)
if err != nil {
return err
}
}
case protobuf.CommunityEvent_COMMUNITY_CATEGORY_CREATE:
_, err := o.createCategory(communityEvent.CategoryData.CategoryId, communityEvent.CategoryData.Name, communityEvent.CategoryData.ChannelsIds)
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_CATEGORY_DELETE:
_, err := o.deleteCategory(communityEvent.CategoryData.CategoryId)
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_CATEGORY_EDIT:
_, err := o.editCategory(communityEvent.CategoryData.CategoryId, communityEvent.CategoryData.Name, communityEvent.CategoryData.ChannelsIds)
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_CHANNEL_CREATE:
err := o.createChat(communityEvent.ChannelData.ChannelId, communityEvent.ChannelData.Channel)
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_CHANNEL_DELETE:
o.deleteChat(communityEvent.ChannelData.ChannelId)
case protobuf.CommunityEvent_COMMUNITY_CHANNEL_EDIT:
err := o.editChat(communityEvent.ChannelData.ChannelId, communityEvent.ChannelData.Channel)
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_CHANNEL_REORDER:
_, err := o.reorderChat(communityEvent.ChannelData.CategoryId, communityEvent.ChannelData.ChannelId, int(communityEvent.ChannelData.Position))
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_CATEGORY_REORDER:
_, err := o.reorderCategories(communityEvent.CategoryData.CategoryId, int(communityEvent.CategoryData.Position))
if err != nil {
return err
}
case protobuf.CommunityEvent_COMMUNITY_MEMBER_KICK:
if o.IsControlNode() {
pk, err := common.HexToPubkey(communityEvent.MemberToAction)
if err != nil {
return err
}
o.removeMemberFromOrg(pk)
}
case protobuf.CommunityEvent_COMMUNITY_MEMBER_BAN:
if o.IsControlNode() {
pk, err := common.HexToPubkey(communityEvent.MemberToAction)
if err != nil {
return err
}
o.banUserFromCommunity(pk)
}
case protobuf.CommunityEvent_COMMUNITY_MEMBER_UNBAN:
if o.IsControlNode() {
pk, err := common.HexToPubkey(communityEvent.MemberToAction)
if err != nil {
return err
}
o.unbanUserFromCommunity(pk)
}
case protobuf.CommunityEvent_COMMUNITY_TOKEN_ADD:
o.config.CommunityDescription.CommunityTokensMetadata = append(o.config.CommunityDescription.CommunityTokensMetadata, communityEvent.TokenMetadata)
}
return nil
}
func (o *Community) NewCommunityEventClock() uint64 {
return uint64(time.Now().Unix())
}
func (o *Community) addNewCommunityEvent(event *CommunityEvent) error {
err := validateCommunityEvent(event)
if err != nil {
return err
}
// All events must be built on top of the control node CommunityDescription
// If there were no events before, extract CommunityDescription from CommunityDescriptionProtocolMessage
// and check the signature
if o.config.EventsData == nil || len(o.config.EventsData.EventsBaseCommunityDescription) == 0 {
_, err := validateAndGetEventsMessageCommunityDescription(o.config.CommunityDescriptionProtocolMessage, o.config.ID)
if err != nil {
return err
}
o.config.EventsData = &EventsData{
EventsBaseCommunityDescription: o.config.CommunityDescriptionProtocolMessage,
Events: []CommunityEvent{},
}
}
event.Payload, err = proto.Marshal(event.ToProtobuf())
if err != nil {
return err
}
o.config.EventsData.Events = append(o.config.EventsData.Events, *event)
return nil
}
func (o *Community) ToCommunityEventsMessage() *CommunityEventsMessage {
return &CommunityEventsMessage{
CommunityID: o.ID(),
EventsBaseCommunityDescription: o.config.EventsData.EventsBaseCommunityDescription,
Events: o.config.EventsData.Events,
}
}
func validateAndGetEventsMessageCommunityDescription(signedDescription []byte, signerPubkey *ecdsa.PublicKey) (*protobuf.CommunityDescription, error) {
metadata := &protobuf.ApplicationMetadataMessage{}
err := proto.Unmarshal(signedDescription, metadata)
if err != nil {
return nil, err
}
if metadata.Type != protobuf.ApplicationMetadataMessage_COMMUNITY_DESCRIPTION {
return nil, ErrInvalidMessage
}
signer, err := metadata.RecoverKey()
if err != nil {
return nil, err
}
if signer == nil {
return nil, errors.New("CommunityDescription does not contain the control node signature")
}
if !signer.Equal(signerPubkey) {
return nil, errors.New("CommunityDescription was not signed by an owner")
}
description := &protobuf.CommunityDescription{}
err = proto.Unmarshal(metadata.Payload, description)
if err != nil {
return nil, err
}
return description, nil
}