signaller/internal/backends/memory/user.go

416 lines
10 KiB
Go

package memory
import (
"fmt"
"sync"
"time"
"github.com/signaller-matrix/signaller/internal"
"github.com/signaller-matrix/signaller/internal/models"
"github.com/signaller-matrix/signaller/internal/models/common"
"github.com/signaller-matrix/signaller/internal/models/createroom"
"github.com/signaller-matrix/signaller/internal/models/devices"
"github.com/signaller-matrix/signaller/internal/models/events"
mSync "github.com/signaller-matrix/signaller/internal/models/sync"
)
type User struct {
name string
password string
Tokens map[string]Token
filters map[string]common.Filter
backend *Backend
mutex sync.RWMutex
}
func (user *User) ID() string {
return "@" + user.name + ":" + user.backend.hostname
}
func (user *User) Name() string {
return user.name
}
func (user *User) Password() string {
return user.password
}
func (user *User) CreateRoom(request createroom.Request) (internal.Room, models.ApiError) {
for _, existingRoom := range user.backend.rooms {
if existingRoom.AliasName() == request.RoomAliasName { // TODO: strip and check request room alias name before use
return nil, models.NewError(models.M_ROOM_IN_USE, "")
}
}
currentUnixTime := time.Now().Unix()
eventsSlice := make([]events.RoomEvent, 0)
// Create room event
eventsSlice = append(eventsSlice, events.RoomEvent{
ContentData: nil,
EType: events.Create,
EventID: internal.RandomString(eventIDSize),
Sender: user.ID(),
OriginServerTs: currentUnixTime})
// TODO: Add join room event
// Set join rules event
eventsSlice = append(eventsSlice, events.RoomEvent{
ContentData: []byte(request.Visibility), // TODO: check visibility vs join rules
EType: events.JoinRules,
EventID: internal.RandomString(eventIDSize),
Sender: user.ID(),
OriginServerTs: currentUnixTime})
// Set room name event
if request.Name != "" {
eventsSlice = append(eventsSlice, events.RoomEvent{
ContentData: nil, // TODO: add
EType: events.Name,
EventID: internal.RandomString(eventIDSize),
Sender: user.ID(),
OriginServerTs: currentUnixTime})
}
// Set room alias event
if request.RoomAliasName != "" {
eventsSlice = append(eventsSlice, events.RoomEvent{
ContentData: nil, // TODO: add
EType: events.CanonicalAlias,
EventID: internal.RandomString(eventIDSize),
Sender: user.ID(),
OriginServerTs: currentUnixTime})
}
room := &Room{
id: internal.RandomString(groupIDSize),
aliasName: request.RoomAliasName,
name: request.Name,
topic: request.Topic,
creator: user,
joined: []internal.User{user},
visibility: request.Visibility,
server: user.backend,
state: request.Preset}
for i, _ := range eventsSlice {
eventsSlice[i].RoomID = room.id
}
for i, _ := range eventsSlice {
user.backend.PutEvent(&eventsSlice[i])
}
user.backend.rooms[room.ID()] = room
return room, nil
}
func (user *User) SetTopic(room internal.Room, topic string) models.ApiError {
memRoom := room.(*Room)
memRoom.mutex.Lock()
if memRoom.creator.ID() != user.ID() { // TODO: currently only creator can change topic
memRoom.mutex.Unlock()
return models.NewError(models.M_FORBIDDEN, "")
}
memRoom.topic = topic
memRoom.mutex.Unlock()
rEvent := &events.RoomEvent{
EType: events.Topic,
Sender: user.ID(),
OriginServerTs: time.Now().Unix(),
RoomID: memRoom.id}
user.backend.PutEvent(rEvent)
return nil
}
func (user *User) Invite(room internal.Room, invitee internal.User) models.ApiError {
memRoom := room.(*Room)
memRoom.mutex.Lock()
defer memRoom.mutex.Unlock()
userInRoom := false
for _, roomUser := range memRoom.joined {
if user.ID() == roomUser.ID() {
userInRoom = true
}
}
if !userInRoom {
return models.NewError(models.M_FORBIDDEN, "the inviter is not currently in the room") // TODO: check code
}
// TODO: remove repeated cycle
for _, roomUser := range memRoom.joined {
if roomUser.ID() == invitee.ID() {
return models.NewError(models.M_FORBIDDEN, "the invitee is already a member of the room.") // TODO: check code
}
}
for _, inviteeUser := range memRoom.invites {
if inviteeUser.ID() == invitee.ID() {
return models.NewError(models.M_FORBIDDEN, "user already has been invited") // TODO: check code
}
}
memRoom.invites = append(memRoom.invites, invitee) // TODO: add invite event + info about inviter
return nil
}
func (user *User) LeaveRoom(room internal.Room) models.ApiError {
memRoom := room.(*Room)
memRoom.mutex.Lock()
defer memRoom.mutex.Unlock()
for i, roomMember := range room.(*Room).joined {
if roomMember.ID() == user.ID() {
room.(*Room).joined = append(room.(*Room).joined[:i], room.(*Room).joined[i+1:]...) // TODO: add event
return nil
}
}
return models.NewError(models.M_BAD_STATE, "you are not a member of group") // TODO: check error code
}
func (user *User) SendMessage(room internal.Room, text string) models.ApiError {
memRoom := room.(*Room)
memRoom.mutex.RLock()
defer memRoom.mutex.RUnlock()
userInRoom := false
for _, roomMember := range memRoom.joined {
if roomMember.ID() == user.ID() {
userInRoom = true
}
}
if !userInRoom {
return models.NewError(models.M_FORBIDDEN, "")
}
rEvent := &events.RoomEvent{
ContentData: nil,
EType: events.Message,
EventID: internal.RandomString(defaultTokenSize),
Sender: user.ID(),
OriginServerTs: time.Now().Unix(),
RoomID: memRoom.id}
user.backend.PutEvent(rEvent)
return nil
}
func (user *User) JoinedRooms() []internal.Room {
user.backend.mutex.Lock()
defer user.backend.mutex.Unlock()
var result []internal.Room
for _, room := range user.backend.rooms {
for _, user := range room.(*Room).joined {
if user.ID() == user.ID() {
result = append(result, room)
}
}
}
return result
}
func (user *User) Devices() []devices.Device {
user.backend.mutex.Lock()
defer user.backend.mutex.Unlock()
var result []devices.Device
for _, token := range user.Tokens {
device := devices.Device{
DeviceID: token.Device}
result = append(result, device)
}
return result
}
func (user *User) SetRoomVisibility(room internal.Room, visibilityType createroom.VisibilityType) models.ApiError {
if user.ID() != room.Creator().ID() {
return models.NewError(models.M_FORBIDDEN, "only room owner can change visibility") // TODO: room administrators can use this method too
}
memRoom := room.(*Room)
memRoom.mutex.Lock()
defer memRoom.mutex.Unlock()
memRoom.visibility = visibilityType
return nil
}
func (user *User) ChangePassword(newPassword string) {
user.mutex.Lock()
defer user.mutex.Unlock()
user.password = newPassword
}
func (user *User) Logout(token string) {
user.mutex.Lock()
defer user.mutex.Unlock()
delete(user.Tokens, token)
}
func (user *User) LogoutAll() {
user.Tokens = make(map[string]Token)
}
func (user *User) JoinRoom(room internal.Room) models.ApiError {
memRoom := room.(*Room)
memRoom.mutex.Lock()
defer memRoom.mutex.Unlock()
for _, roomUser := range memRoom.joined {
if roomUser.ID() == user.ID() {
return models.NewError(models.M_BAD_STATE, "user already in room") // TODO: check code
}
}
memRoom.joined = append(memRoom.joined, user)
return nil
}
func (user *User) AddRoomAlias(room internal.Room, alias string) models.ApiError {
user.backend.mutex.Lock()
defer user.backend.mutex.Unlock()
if room.Creator().ID() != user.ID() {
return models.NewError(models.M_FORBIDDEN, "only room creator can add room alias") // TODO: make room admins can use this method
}
if _, exists := user.backend.roomAliases[alias]; exists {
return models.NewError(models.M_UNKNOWN, fmt.Sprintf("room alias #%s:%s already exists", alias, user.backend.hostname))
}
user.backend.roomAliases[alias] = room
return nil
}
func (user *User) DeleteRoomAlias(alias string) models.ApiError {
user.backend.mutex.Lock()
defer user.backend.mutex.Unlock()
room := user.backend.GetRoomByAlias(alias)
if room == nil {
return models.NewError(models.M_NOT_FOUND, "room not found")
}
if room.Creator().ID() != user.ID() {
return models.NewError(models.M_FORBIDDEN, "only room creator can delete room alias") // TODO: make room admins can use this method
}
delete(user.backend.roomAliases, alias)
return nil
}
func (user *User) AddFilter(filterID string, filter common.Filter) {
user.mutex.Lock()
defer user.mutex.Unlock()
user.filters[filterID] = filter
}
func (user *User) GetFilterByID(filterID string) *common.Filter {
user.mutex.RLock()
defer user.mutex.RUnlock()
if filterReq, ok := user.filters[filterID]; ok {
return &filterReq
}
return nil
}
func (user *User) Sync(token string, request mSync.SyncRequest) (response *mSync.SyncReply, err models.ApiError) {
response = mSync.BuildEmptySyncReply()
emptyEventList := true
emptySinceToken := true
var eventsList []events.Event
if request.Since != "" {
emptySinceToken = false
eventsList := user.backend.GetEventsSince(user, request.Since, 0) // TODO filtering
if len(eventsList) != 0 {
emptyEventList = false
}
}
if !emptyEventList {
for _, room := range user.JoinedRooms() {
filteredEventList := filterEventsByRoom(room.ID(), eventsList)
var prevBatch string
if len(filteredEventList) != 0 {
prevBatch = filteredEventList[0].ID()
}
response.Rooms.Join[room.ID()] = mSync.JoinedRoom{
RoomSummary: mSync.RoomSummary{
Heroes: nil,
JoinedMemberCount: 0,
InvitedMemberCount: 0,
},
State: events.State{
Events: nil,
},
Timeline: mSync.Timeline{
Events: filteredEventList,
Limited: false, // TODO filtering
PrevBatch: prevBatch,
},
}
}
response.NextBatch = eventsList[len(eventsList)-1].ID()
} else if emptySinceToken {
// TODO
} else {
// TODO wait for new events or just return empty response when timeout is reached
}
return response, nil
}
func filterEventsByRoom(roomID string, eventList []events.Event) []events.RoomEvent {
var filteredEventList []events.RoomEvent
for _, event := range eventList {
if roomEvent, ok := event.(events.RoomEvent); ok {
if roomEvent.RoomID == roomID {
filteredEventList = append(filteredEventList, event.(events.RoomEvent))
}
}
}
return filteredEventList
}