api/websocket/connection.go

@@ -0,0 +1,72 @@
+package websocket
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"mchess_server/api"
+	"net/http"
+
+	lobbies "mchess_server/lobby_registry"
+
+	"github.com/gin-gonic/gin"
+	gorillaws "github.com/gorilla/websocket"
+)
+
+var upgrader = gorillaws.Upgrader{
+	CheckOrigin: func(r *http.Request) bool {
+		return true
+	},
+}
+
+func RegisterWebSocketConnection(c *gin.Context) {
+	log.Println(c.Request)
+	conn, err := upgrader.Upgrade(c.Writer, c.Request, nil)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	go waitForAndHandlePlayerID(c, conn)
+}
+
+func waitForAndHandlePlayerID(ctx context.Context, conn *gorillaws.Conn) {
+	msgType, msg, err := conn.ReadMessage()
+	if err != nil {
+		errorMessage := fmt.Sprintf("Reading from websocket connection did not work: %s", err)
+		log.Println(errorMessage)
+		conn.Close()
+		return
+	}
+
+	log.Println("read from websocket endpoint: ", msgType, string(msg), err)
+
+	var info api.PlayerInfo
+	err = json.Unmarshal(msg, &info)
+	if err != nil {
+		errorMessage := fmt.Sprintf("Unmarshaling message did not work: %s", err)
+		log.Println(errorMessage)
+		conn.WriteMessage(msgType, []byte(errorMessage))
+		conn.Close()
+		return
+	}
+
+	lobby := lobbies.GetLobbyRegistry().GetLobbyByUUID(*info.LobbyID)
+	if lobby == nil {
+		conn.WriteMessage(msgType, []byte("lobby not found"))
+		conn.Close()
+		return
+	}
+
+	player, found := lobby.GetPlayerByUUID(*info.PlayerID)
+	if !found {
+		conn.WriteMessage(msgType, []byte("player not found"))
+		conn.Close()
+		return
+	}
+	if player.Conn.HasWebsocketConnection() {
+		player.Conn.Close("closing existing connection")
+	}
+	lobby.Game.SetWebsocketConnectionFor(ctx, player, conn)
+	log.Println("player after setting connection: ", player)
+}

chess/game.go

@@ -8,7 +8,7 @@ import (
 	"mchess_server/types"
 
 	"github.com/google/uuid"
-	"nhooyr.io/websocket"
+	gorillaws "github.com/gorilla/websocket"
 )
 
 type Game struct {
@@ -211,6 +211,6 @@ func (game Game) broadcastGameEnd(reason GameEndedReason) error {
 func (game *Game) playerDisconnected(p *Player) {
 }
 
-func (game *Game) SetWebsocketConnectionFor(ctx context.Context, p *Player, ws *websocket.Conn) {
+func (game *Game) SetWebsocketConnectionFor(ctx context.Context, p *Player, ws *gorillaws.Conn) {
 	p.SetWebsocketConnectionAndSendBoardState(ctx, ws, game.board.PGN(), game.board.colorToMove)
 }

chess/player.go

@@ -10,7 +10,7 @@ import (
 	"mchess_server/types"
 
 	"github.com/google/uuid"
-	"nhooyr.io/websocket"
+	gorillaws "github.com/gorilla/websocket"
 )
 
 type Player struct {
@@ -34,13 +34,13 @@ func (p Player) hasWebsocketConnection() bool {
 	return p.Conn.HasWebsocketConnection()
 }
 
-func (p *Player) SetWebsocketConnection(ctx context.Context, ws *websocket.Conn) {
+func (p *Player) SetWebsocketConnection(ctx context.Context, ws *gorillaws.Conn) {
 	p.Conn.SetWebsocketConnection(ws)
 }
 
 func (p *Player) SetWebsocketConnectionAndSendBoardState(
 	ctx context.Context,
-	ws *websocket.Conn,
+	ws *gorillaws.Conn,
 	boardPosition string,
 	turnColor types.ChessColor,
 ) {

connection/type.go

@@ -3,13 +3,15 @@ package connection
 import (
 	"context"
 	"log"
+	"sync"
 
-	"nhooyr.io/websocket"
+	gorillaws "github.com/gorilla/websocket"
 )
 
 type Connection struct {
-	ws                      *websocket.Conn
+	ws                      *gorillaws.Conn
 	wsConnectionEstablished chan bool
+	wsWriteLock             sync.Mutex
 	ctx                     context.Context
 	buffer                  MessageBuffer
 	disconnectCallback      func()
@@ -28,7 +30,7 @@ func NewConnection(options ...func(*Connection)) *Connection {
 	return &connection
 }
 
-func WithWebsocket(ws *websocket.Conn) func(*Connection) {
+func WithWebsocket(ws *gorillaws.Conn) func(*Connection) {
 	return func(c *Connection) {
 		c.ws = ws
 	}
@@ -56,7 +58,7 @@ func (conn *Connection) HasWebsocketConnection() bool {
 	return conn.ws != nil
 }
 
-func (conn *Connection) SetWebsocketConnection(ws *websocket.Conn) {
+func (conn *Connection) SetWebsocketConnection(ws *gorillaws.Conn) {
 	if ws == nil {
 		return
 	}
@@ -70,7 +72,7 @@ func (conn *Connection) SetWebsocketConnection(ws *websocket.Conn) {
 
 	go func() {
 		for {
-			_, msg, err := conn.ws.Read(conn.ctx)
+			_, msg, err := conn.ws.ReadMessage()
 			if err != nil {
 				log.Println("while reading from websocket: %w", err)
 				if conn.disconnectCallback != nil {
@@ -84,12 +86,15 @@ func (conn *Connection) SetWebsocketConnection(ws *websocket.Conn) {
 }
 
 func (conn *Connection) Write(msg []byte) error {
+	conn.wsWriteLock.Lock()
+	defer conn.wsWriteLock.Unlock()
+
 	if conn.ws == nil { //if ws is not yet set, we wait for it
 		<-conn.wsConnectionEstablished
 	}
 
 	log.Printf("Writing message: %s", string(msg))
-	return conn.ws.Write(conn.ctx, websocket.MessageText, msg)
+	return conn.ws.WriteMessage(gorillaws.TextMessage, msg)
 }
 
 func (conn *Connection) Read() ([]byte, error) {
@@ -103,6 +108,7 @@ func (conn *Connection) Read() ([]byte, error) {
 }
 
 func (conn *Connection) Close(msg string) {
-	conn.ws.Close(websocket.StatusCode(400), msg)
+	conn.ws.WriteMessage(gorillaws.TextMessage, []byte(msg))
+	conn.ws.Close()
 	conn.ws = nil
 }

go.mod

@@ -7,7 +7,6 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/samber/lo v1.39.0
 	github.com/stretchr/testify v1.9.0
-	nhooyr.io/websocket v1.8.11
 )
 
 require (
@@ -22,6 +21,7 @@ require (
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.20.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/gorilla/websocket v1.5.1
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
 	github.com/leodido/go-urn v1.4.0 // indirect

go.sum

@@ -1,18 +1,7 @@
-github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
-github.com/bytedance/sonic v1.10.0-rc/go.mod h1:ElCzW+ufi8qKqNW0FY314xriJhyJhuoJ3gFZdAHF7NM=
-github.com/bytedance/sonic v1.11.3 h1:jRN+yEjakWh8aK5FzrciUHG8OFXK+4/KrAX/ysEtHAA=
-github.com/bytedance/sonic v1.11.3/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
 github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc0=
 github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
 github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
 github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
-github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
-github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
-github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d h1:77cEq6EriyTZ0g/qfRdp61a3Uu/AWrgIq2s0ClJV1g0=
-github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d/go.mod h1:8EPpVsBuRksnlj1mLy4AWzRNQYxauNi62uWcE3to6eA=
-github.com/chenzhuoyu/iasm v0.9.0/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog=
-github.com/chenzhuoyu/iasm v0.9.1 h1:tUHQJXo3NhBqw6s33wkGn9SP3bvrWLdlVIJ3hQBL7P0=
-github.com/chenzhuoyu/iasm v0.9.1/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog=
 github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y=
 github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
 github.com/cloudwego/iasm v0.2.0 h1:1KNIy1I1H9hNNFEEH3DVnI4UujN+1zjpuk6gwHLTssg=
@@ -24,8 +13,6 @@ github.com/gabriel-vasile/mimetype v1.4.3 h1:in2uUcidCuFcDKtdcBxlR0rJ1+fsokWf+uq
 github.com/gabriel-vasile/mimetype v1.4.3/go.mod h1:d8uq/6HKRL6CGdk+aubisF/M5GcPfT7nKyLpA0lbSSk=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/gin-gonic/gin v1.9.1 h1:4idEAncQnU5cB7BeOkPtxjfCSye0AAm1R0RVIqJ+Jmg=
-github.com/gin-gonic/gin v1.9.1/go.mod h1:hPrL7YrpYKXt5YId3A/Tnip5kqbEAP+KLuI3SUcPTeU=
 github.com/gin-gonic/gin v1.10.0 h1:nTuyha1TYqgedzytsKYqna+DfLos46nTv2ygFy86HFU=
 github.com/gin-gonic/gin v1.10.0/go.mod h1:4PMNQiOhvDRa013RKVbsiNwoyezlm2rm0uX/T7kzp5Y=
 github.com/go-playground/assert/v2 v2.2.0 h1:JvknZsQTYeFEAhQwI4qEt9cyV5ONwRHC+lYKSsYSR8s=
@@ -34,18 +21,17 @@ github.com/go-playground/locales v0.14.1 h1:EWaQ/wswjilfKLTECiXz7Rh+3BjFhfDFKv/o
 github.com/go-playground/locales v0.14.1/go.mod h1:hxrqLVvrK65+Rwrd5Fc6F2O76J/NuW9t0sjnWqG1slY=
 github.com/go-playground/universal-translator v0.18.1 h1:Bcnm0ZwsGyWbCzImXv+pAJnYK9S473LQFuzCbDbfSFY=
 github.com/go-playground/universal-translator v0.18.1/go.mod h1:xekY+UJKNuX9WP91TpwSH2VMlDf28Uj24BCp08ZFTUY=
-github.com/go-playground/validator/v10 v10.19.0 h1:ol+5Fu+cSq9JD7SoSqe04GMI92cbn0+wvQ3bZ8b/AU4=
-github.com/go-playground/validator/v10 v10.19.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
 github.com/go-playground/validator/v10 v10.20.0 h1:K9ISHbSaI0lyB2eWMPJo+kOS/FBExVwjEviJTixqxL8=
 github.com/go-playground/validator/v10 v10.20.0/go.mod h1:dbuPbCMFw/DrkbEynArYaCwl3amGuJotoKCe95atGMM=
 github.com/goccy/go-json v0.10.2 h1:CrxCmQqYDkv1z7lO7Wbh2HN93uovUHgrECaO5ZrCXAU=
 github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
+github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/klauspost/cpuid/v2 v2.0.9/go.mod h1:FInQzS24/EEf25PyTYn52gqo7WaD8xa0213Md/qVLRg=
@@ -61,10 +47,6 @@ github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/pelletier/go-toml/v2 v2.2.0 h1:QLgLl2yMN7N+ruc31VynXs1vhMZa7CeHHejIeBAsoHo=
-github.com/pelletier/go-toml/v2 v2.2.0/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
-github.com/pelletier/go-toml/v2 v2.2.1 h1:9TA9+T8+8CUCO2+WYnDLCgrYi9+omqKXyjDtosvtEhg=
-github.com/pelletier/go-toml/v2 v2.2.1/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
 github.com/pelletier/go-toml/v2 v2.2.2 h1:aYUidT7k73Pcl9nb2gScu7NSrKCSHIDE89b3+6Wq+LM=
 github.com/pelletier/go-toml/v2 v2.2.2/go.mod h1:1t835xjRzz80PqgE6HHgN2JOsmgYu/h4qDAS4n929Rs=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -88,38 +70,20 @@ github.com/twitchyliquid64/golang-asm v0.15.1/go.mod h1:a1lVb/DtPvCB8fslRZhAngC2
 github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=
 github.com/ugorji/go/codec v1.2.12/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
-golang.org/x/arch v0.7.0 h1:pskyeJh/3AmoQ8CPE95vxHLqp1G1GfGNXTmcl9NEKTc=
-golang.org/x/arch v0.7.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
 golang.org/x/arch v0.8.0 h1:3wRIsP3pM4yUptoR96otTUOXI367OS0+c9eeRi9doIc=
 golang.org/x/arch v0.8.0/go.mod h1:FEVrYAQjsQXMVJ1nsMoVVXPZg6p2JE2mx8psSWTDQys=
-golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
-golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
 golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
 golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
-golang.org/x/exp v0.0.0-20240409090435-93d18d7e34b8 h1:ESSUROHIBHg7USnszlcdmjBEwdMj9VUvU+OPk4yl2mc=
-golang.org/x/exp v0.0.0-20240409090435-93d18d7e34b8/go.mod h1:/lliqkxwWAhPjf5oSOIJup2XcqJaw8RGS6k3TGEc7GI=
-golang.org/x/exp v0.0.0-20240416160154-fe59bbe5cc7f h1:99ci1mjWVBWwJiEKYY6jWa4d2nTQVIEhZIptnrVb1XY=
-golang.org/x/exp v0.0.0-20240416160154-fe59bbe5cc7f/go.mod h1:/lliqkxwWAhPjf5oSOIJup2XcqJaw8RGS6k3TGEc7GI=
 golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM=
 golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc=
-golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
-golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=
 golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
 golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
-google.golang.org/protobuf v1.34.0 h1:Qo/qEd2RZPCf2nKuorzksSknv0d3ERwp1vFG38gSmH4=
-google.golang.org/protobuf v1.34.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
 google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
@@ -127,7 +91,5 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-nhooyr.io/websocket v1.8.11 h1:f/qXNc2/3DpoSZkHt1DQu6rj4zGC8JmkkLkWss0MgN0=
-nhooyr.io/websocket v1.8.11/go.mod h1:rN9OFWIUwuxg4fR5tELlYC04bXYowCP9GX47ivo2l+c=
 nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

main.go

@@ -1,17 +1,12 @@
 package main
 
 import (
-	"context"
-	"encoding/json"
 	"flag"
-	"fmt"
 	"log"
-	"mchess_server/api"
+	"mchess_server/api/handler"
-	"mchess_server/handler"
+	"mchess_server/api/websocket"
-	lobbies "mchess_server/lobby_registry"
 
 	"github.com/gin-gonic/gin"
-	"nhooyr.io/websocket"
 )
 
 var cert_path = "/etc/letsencrypt/live/chess.sw-gross.de/"
@@ -32,7 +27,7 @@ func main() {
 	router.GET("/api/random", handler.RegisterForRandomGame)
 	router.GET("/api/hostPrivate", handler.HostPrivateGameHandler)
 	router.POST("/api/joinPrivate", handler.JoinPrivateGame)
-	router.GET("/api/ws", registerWebSocketConnection)
+	router.GET("/api/ws", websocket.RegisterWebSocketConnection)
 	router.GET("/api/getLobbyForPassphrase/:phrase", handler.GetLobbyForPassphraseHandler)
 
 	if debugMode {
@@ -45,50 +40,3 @@ func main() {
 		log.Fatal(router.RunTLS("chess.sw-gross.de:9999", cert_file, key_file))
 	}
 }
-
-func registerWebSocketConnection(c *gin.Context) {
-	webSocketConn, err := websocket.Accept(c.Writer, c.Request, &websocket.AcceptOptions{OriginPatterns: []string{"chess.sw-gross.de", "localhost:*"}})
-	if err != nil {
-		log.Println(err)
-		return
-	}
-	go waitForAndHandlePlayerID(c, webSocketConn)
-}
-
-func waitForAndHandlePlayerID(ctx context.Context, conn *websocket.Conn) {
-	msgType, msg, err := conn.Read(ctx)
-	if err != nil {
-		errorMessage := fmt.Sprintf("Reading from websocket connection did not work: %s", err)
-		log.Println(errorMessage)
-		conn.Close(websocket.StatusCode(400), errorMessage)
-		return
-	}
-
-	log.Println("read from websocket endpoint: ", msgType, string(msg), err)
-
-	var info api.PlayerInfo
-	err = json.Unmarshal(msg, &info)
-	if err != nil {
-		errorMessage := fmt.Sprintf("Unmarshaling message did not work: %s", err)
-		log.Println(errorMessage)
-		conn.Close(websocket.StatusCode(400), errorMessage)
-		return
-	}
-
-	lobby := lobbies.GetLobbyRegistry().GetLobbyByUUID(*info.LobbyID)
-	if lobby == nil {
-		conn.Close(websocket.StatusCode(400), "lobby not found")
-		return
-	}
-
-	player, found := lobby.GetPlayerByUUID(*info.PlayerID)
-	if !found {
-		conn.Close(websocket.StatusCode(400), "player not found")
-		return
-	}
-	if player.Conn.HasWebsocketConnection() {
-		player.Conn.Close("closing existing connection")
-	}
-	lobby.Game.SetWebsocketConnectionFor(ctx, player, conn)
-	log.Println("player after setting connection: ", player)
-}