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feat: Add basic GetEventsSince method for backend
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parent
f119046d58
commit
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1
go.mod
1
go.mod
@ -5,4 +5,5 @@ go 1.12
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require (
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github.com/gorilla/mux v1.7.3
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github.com/stretchr/testify v1.3.0
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github.com/wangjia184/sortedset v0.0.0-20160527075905-f5d03557ba30
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)
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2
go.sum
2
go.sum
@ -7,3 +7,5 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
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github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
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github.com/wangjia184/sortedset v0.0.0-20160527075905-f5d03557ba30 h1:kZiWylALnUy4kzoKJemjH8eqwCl3RjW1r1ITCjjW7G8=
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github.com/wangjia184/sortedset v0.0.0-20160527075905-f5d03557ba30/go.mod h1:YkocrP2K2tcw938x9gCOmT5G5eCD6jsTz0SZuyAqwIE=
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@ -21,6 +21,7 @@ type Backend interface {
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GetEventByID(id string) rooms.Event
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PutEvent(rooms.Event) error
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GetRoomByAlias(string) Room
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GetEventsSince(sinceToken string, limit int) []rooms.Event
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}
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type Room interface {
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@ -6,6 +6,7 @@ import (
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"sort"
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"strings"
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"sync"
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"time"
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"github.com/signaller-matrix/signaller/internal"
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"github.com/signaller-matrix/signaller/internal/models"
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@ -13,12 +14,13 @@ import (
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"github.com/signaller-matrix/signaller/internal/models/createroom"
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"github.com/signaller-matrix/signaller/internal/models/rooms"
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mSync "github.com/signaller-matrix/signaller/internal/models/sync"
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"github.com/wangjia184/sortedset"
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)
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type Backend struct {
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data map[string]internal.User
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rooms map[string]internal.Room
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events map[string]rooms.Event
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events *sortedset.SortedSet
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roomAliases map[string]internal.Room
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hostname string
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validateUsernameFunc func(string) error // TODO: create ability to redefine validation func
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@ -35,7 +37,7 @@ func NewBackend(hostname string) *Backend {
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validateUsernameFunc: defaultValidationUsernameFunc,
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rooms: make(map[string]internal.Room),
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roomAliases: make(map[string]internal.Room),
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events: make(map[string]rooms.Event),
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events: sortedset.New(),
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data: make(map[string]internal.User)}
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}
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@ -187,14 +189,57 @@ func (backend *Backend) GetEventByID(id string) rooms.Event {
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backend.mutex.RLock()
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defer backend.mutex.RUnlock()
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return backend.events[id]
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return backend.events.GetByKey(id).Value.(rooms.Event)
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}
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func (backend *Backend) PutEvent(event rooms.Event) error {
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backend.mutex.Lock()
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defer backend.mutex.Unlock()
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backend.events[event.EventID] = event
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backend.events.AddOrUpdate(event.EventID, sortedset.SCORE(time.Now().Unix()), event)
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return nil
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}
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func (backend *Backend) GetEventsSince(user User, sinceToken string, limit int) []rooms.Event {
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sinceEventNode := backend.events.GetByKey(sinceToken)
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sEvents := backend.events.GetByScoreRange(sinceEventNode.Score(), -1, &sortedset.GetByScoreRangeOptions{
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Limit: limit,
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})
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events := extractEventsFromNodes(sEvents)
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var returnEvents []rooms.Event
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for _, event := range events {
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if isEventRelatedToUser(event, user) {
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returnEvents = append(returnEvents, event)
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}
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}
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return returnEvents
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}
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func extractEventsFromNodes(nodes []*sortedset.SortedSetNode) []rooms.Event {
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var events []rooms.Event
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for _, e := range nodes {
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events = append(events, e.Value.(rooms.Event))
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}
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return events
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}
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func isEventRelatedToUser(event rooms.Event, user User) bool {
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if internal.InArray(event.RoomID, extractRoomIDsFromModel(user.JoinedRooms())) {
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return true
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}
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return false
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}
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func extractRoomIDsFromModel(rooms []internal.Room) []string {
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var roomIDs []string
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for _, room := range rooms {
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roomIDs = append(roomIDs, room.ID())
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}
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return roomIDs
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}
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@ -37,3 +37,12 @@ func roomsToPublicRoomsChunks(rooms []Room) []publicrooms.PublicRoomsChunk {
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return chunks
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}
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func InArray(a string, arr []string) bool {
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for _, b := range arr {
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if b == a {
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return true
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}
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}
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return false
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}
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