Add more xmpp functions

aid/aid.go

@@ -6,8 +6,6 @@ import (
 	"os/signal"
 	"strconv"
 	"syscall"
-
-	"github.com/goccy/go-json"
 )
 
 func WaitForExit() {
@@ -16,17 +14,6 @@ func WaitForExit() {
 	<-sc
 }
 
-func JSONStringify(input interface{}) string {
-	json, _ := json.Marshal(input)
-	return string(json)
-}
-
-func JSONParse(input string) interface{} {
-	var output interface{}
-	json.Unmarshal([]byte(input), &output)
-	return output
-}
-
 func RandomString(n int) string {
 	var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")
 

aid/json.go

@@ -14,3 +14,14 @@ func (j *JSON) ToBytes() []byte {
 	json, _ := json.Marshal(j)
 	return json
 }
+
+func JSONStringify(input interface{}) string {
+	json, _ := json.Marshal(input)
+	return string(json)
+}
+
+func JSONParse(input string) interface{} {
+	var output interface{}
+	json.Unmarshal([]byte(input), &output)
+	return output
+}

handlers/socket.go

@@ -10,17 +10,16 @@ import (
 )
 
 type SocketType string
-var (
+const SocketTypeXmpp SocketType = "xmpp"
-	SocketTypeXmpp SocketType = "xmpp"
+const	SocketTypeUnknown SocketType = "unknown"
-	SocketTypeUnknown SocketType = "unknown"
-)
 
 type Socket struct {
 	ID string
-	JID string
-	Type SocketType
 	Connection *websocket.Conn
 	Person *person.Person
+	
+	Type SocketType
+	PresenceState *PresenceState
 }
 
 type MessageToWrite struct {
@@ -50,7 +49,7 @@ func (s *Socket) WriteTree(message *etree.Document) {
 var (
 	socketWriteQueue = make(chan MessageToWrite, 1000)
 	socketHandlers = map[SocketType]func(string) {
-		SocketTypeXmpp: handlePresenceSocket,
+		SocketTypeXmpp: presenceSocketHandle,
 	}
 
 	sockets = aid.GenericSyncMap[Socket]{}
@@ -98,6 +97,24 @@ func WebsocketConnection(c *websocket.Conn) {
 	} 
 }
 
+func GetSocketByPerson(person *person.Person) *Socket {
+	var recieverSocket *Socket
+	sockets.Range(func(key string, value *Socket) bool {
+		if value.Person == nil {
+			return true
+		}
+
+		if value.Person.ID == person.ID {
+			recieverSocket = value
+			return false
+		}
+
+		return true
+	})
+	
+	return recieverSocket
+}
+
 func init() {
 	go func() {
 		for {
@@ -110,7 +127,7 @@ func init() {
 
 		for {
 			message := <-socketWriteQueue
-			aid.Print("(socket) message sent", message.Socket.ID, string(message.Message))
+			aid.Print("(socket) writing message to", message.Socket.ID, string(message.Message))
 			message.Socket.Connection.WriteMessage(websocket.TextMessage, message.Message)
 		}
 	}()

handlers/xmpp.go

@@ -8,23 +8,58 @@ import (
 	"github.com/beevik/etree"
 	"github.com/ectrc/snow/aid"
 	p "github.com/ectrc/snow/person"
+	"github.com/ectrc/snow/storage"
+	"github.com/goccy/go-json"
+	"github.com/google/uuid"
 )
 
+type PresenceStatus struct {
+	Status          string `json:"Status"`
+	IsPlaying       bool   `json:"bIsPlaying"`
+	IsJoinable      bool   `json:"bIsJoinable"`
+	HasVoiceSupport bool   `json:"bHasVoiceSupport"`
+	SessionId       string `json:"SessionId"`
+	Properties      map[string]struct {
+		SourceId           string `json:"sourceId"`
+		SourceDisplayName  string `json:"sourceDisplayName"`
+		SourcePlatform     string `json:"sourcePlatform"`
+		PartyId            string `json:"partyId"`
+		PartyTypeId        int    `json:"partyTypeId"`
+		Key                string `json:"key"`
+		AppId              string `json:"appId"`
+		BuildId            string `json:"buildId"`
+		PartyFlags         int    `json:"partyFlags"`
+		NotAcceptingReason int    `json:"notAcceptingReason"`
+		Pc                 int    `json:"pc"`
+	} `json:"Properties"`
+}
+
+type PresenceState struct {
+	JID string
+	Open bool
+	RawStatus string
+	ParsedStatus PresenceStatus
+}
+
 var (
 	socketXmppMessageHandlers = map[string]func(*Socket, *etree.Document) error {
 		"open": presenceSocketOpenEvent,
 		"iq": presenceSocketIqRootEvent,
+		"message": presenceSocketMessageEvent,
+		"presence": presenceSocketPresenceEvent,
 		"close": presenceSocketCloseEvent,
 	}
 )
 
-func handlePresenceSocket(id string) {
+func presenceSocketHandle(id string) {
-	aid.Print("(xmpp) connection opened", id)
 	socket, ok := sockets.Get(id)
 	if !ok {
 		return
 	}
 
+	socket.Type = SocketTypeXmpp
+	socket.PresenceState = &PresenceState{}
+
 	for {
 		_, message, err := socket.Connection.ReadMessage()
 		if err != nil {
@@ -36,15 +71,66 @@ func handlePresenceSocket(id string) {
 			return
 		}
 
-		aid.Print("(xmpp) message received", string(message))
-
 		if handler, ok := socketXmppMessageHandlers[parsed.Root().Tag]; ok {
 			if err := handler(socket, parsed); err != nil {
-				aid.Print("(xmpp) connection closed", id, err.Error())
 				return
 			}
 		}
 	}
+
+	for _, partial := range storage.Repo.GetFriendsForPerson(socket.Person.ID) {
+		friend := socket.Person.GetFriend(partial.ID)
+		if friend == nil {
+			continue
+		}
+
+		friendSocket := GetSocketByPerson(friend.Person)
+		if friendSocket == nil {
+			continue
+		}
+
+		friendDocument := etree.NewDocument()
+		friendPresence := friendDocument.CreateElement("presence")
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "from", Value: socket.PresenceState.JID})
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "to", Value: friendSocket.PresenceState.JID})
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "type", Value: "available"})
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "xmlns", Value: "jabber:client"})
+		friendPresence.CreateElement("status").SetText(aid.JSONStringify(aid.JSON{}))
+		friendPresence.CreateElement("show").SetText("away")
+
+		friendSocket.WriteTree(friendDocument)
+	}
+
+	for _, party := range socket.PresenceState.ParsedStatus.Properties {
+		if party.PartyId == "" {
+			continue
+		}
+
+		sockets.Range(func(_ string, recieverSocket *Socket) bool {
+			if recieverSocket.Type != SocketTypeXmpp || recieverSocket.Person == nil {
+				return true
+			}
+
+			document := etree.NewDocument()
+			message := document.CreateElement("message")
+			message.Attr = append(message.Attr, etree.Attr{Key: "id", Value: uuid.New().String()})
+			message.Attr = append(message.Attr, etree.Attr{Key: "from", Value: socket.PresenceState.JID})
+			message.Attr = append(message.Attr, etree.Attr{Key: "to", Value: recieverSocket.PresenceState.JID})
+			message.Attr = append(message.Attr, etree.Attr{Key: "xmlns", Value: "jabber:client"})
+			message.CreateElement("body").SetText(aid.JSONStringify(aid.JSON{
+				"type": "com.epicgames.party.memberexited",
+				"timestamp": time.Now().Format(time.RFC3339),
+				"payload": aid.JSON{
+					"memberId": socket.Person.ID,
+					"partyId": party.PartyId,
+					"wasKicked": false,
+				},
+			}))
+
+			recieverSocket.WriteTree(document)
+			return true
+		})
+	}
 }
 
 func presenceSocketOpenEvent(socket *Socket, tree *etree.Document) error {
@@ -105,7 +191,7 @@ func presenceSocketIqSetEvent(socket *Socket, tree *etree.Document) error {
 	}
 
 	socket.Person = person
-	socket.JID = person.ID + "@prod.ol.epicgames.com/" + tree.Root().SelectElement("query").SelectElement("resource").Text()
+	socket.PresenceState.JID = person.ID + "@prod.ol.epicgames.com/" + tree.Root().SelectElement("query").SelectElement("resource").Text()
 
 	document := etree.NewDocument()
 	iq := document.CreateElement("iq")
@@ -114,6 +200,7 @@ func presenceSocketIqSetEvent(socket *Socket, tree *etree.Document) error {
 	iq.Attr = append(iq.Attr, etree.Attr{Key: "from", Value: "prod.ol.epicgames.com"})
 
 	socket.WriteTree(document)
+	SendPresenceSocketStatusToFriends(socket)
 	return nil
 }
 
@@ -131,6 +218,74 @@ func presenceSocketIqGetEvent(socket *Socket, tree *etree.Document) error {
 	return nil
 }
 
+func presenceSocketMessageEvent(socket *Socket, tree *etree.Document) error {
+	reciever := p.Find(strings.Split(tree.Root().SelectAttr("to").Value, "@")[0])
+	if reciever == nil {
+		return nil
+	}
+
+	recieverSocket := GetSocketByPerson(reciever)
+	if recieverSocket == nil {
+		return nil
+	}
+
+	document := etree.NewDocument()
+	message := document.CreateElement("message")
+	message.Attr = append(message.Attr, etree.Attr{Key: "id", Value: tree.Root().SelectAttr("id").Value})
+	message.Attr = append(message.Attr, etree.Attr{Key: "from", Value: socket.PresenceState.JID})
+	message.Attr = append(message.Attr, etree.Attr{Key: "to", Value: recieverSocket.PresenceState.JID})
+	message.Attr = append(message.Attr, etree.Attr{Key: "xmlns", Value: "jabber:client"})
+	message.CreateElement("body").SetText(tree.Root().SelectElement("body").Text())
+
+	recieverSocket.WriteTree(document)
+	return nil
+}
+
+func presenceSocketPresenceEvent(socket *Socket, tree *etree.Document) error {
+	status := tree.Root().SelectElement("status")
+	if status == nil {
+		return nil
+	}
+
+	socket.PresenceState.RawStatus = status.Text()
+	json.NewDecoder(strings.NewReader(status.Text())).Decode(&socket.PresenceState.ParsedStatus)
+
+	SendPresenceSocketStatusToFriends(socket)
+	return nil
+}
+
+func SendPresenceSocketStatusToFriends(socket *Socket) {
+	for _, partial := range storage.Repo.GetFriendsForPerson(socket.Person.ID) {
+		friend := socket.Person.GetFriend(partial.ID)
+		if friend == nil {
+			continue
+		}
+
+		friendSocket := GetSocketByPerson(friend.Person)
+		if friendSocket == nil {
+			continue
+		}
+
+		friendDocument := etree.NewDocument()
+		friendPresence := friendDocument.CreateElement("presence")
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "from", Value: socket.PresenceState.JID})
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "to", Value: friendSocket.PresenceState.JID})
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "type", Value: "available"})
+		friendPresence.Attr = append(friendPresence.Attr, etree.Attr{Key: "xmlns", Value: "jabber:client"})
+		friendPresence.CreateElement("status").SetText(socket.PresenceState.RawStatus)
+		friendSocket.WriteTree(friendDocument)
+
+		document := etree.NewDocument()
+		presence := document.CreateElement("presence")
+		presence.Attr = append(presence.Attr, etree.Attr{Key: "from", Value: friendSocket.PresenceState.JID})
+		presence.Attr = append(presence.Attr, etree.Attr{Key: "to", Value: socket.PresenceState.JID})
+		presence.Attr = append(presence.Attr, etree.Attr{Key: "type", Value: "available"})
+		presence.Attr = append(presence.Attr, etree.Attr{Key: "xmlns", Value: "jabber:client"})
+		presence.CreateElement("status").SetText(friendSocket.PresenceState.RawStatus)
+		socket.WriteTree(document)
+	}
+}
+
 func init() {
 	go func() {
 		for {

readme.md

@@ -10,7 +10,6 @@ Performance first, universal Fortnite private server backend written in Go.
 - **Blazingly Fast** Written in Go and built upon Fast HTTP, it is extremely fast and can handle any profile action in milliseconds with its caching system.
 - **Profile Changes** Automatically keeps track of profile changes exactly so any external changes are displayed in-game on the next action.
 - **Universal Database** It is possible to add new database types to satisfy your needs. Currently, it only supports `postgresql`.
-- **Production Ready** Optimised and tested to be ran in production environments. It is also possible to run multiple instances of the backend to scale it horizontally.
 
 ## What's next?