pre cw with probe and a bunch script to read game behavior

internal/gameserver/gateway.go

@@ -1,6 +1,7 @@
 package gameserver
 
 import (
+	"fmt"
 	"net"
 	"sync"
 	"sync/atomic"
@@ -14,10 +15,11 @@ import (
 // mihoyo KCP handshake (20-byte NetOperation) and dispatching KCP payloads
 // to sessions.
 type Gateway struct {
-	conn     *net.UDPConn
-	idSeq    atomic.Uint32
-	mu       sync.Mutex
-	sessions map[uint32]*Session
+	conn         *net.UDPConn
+	idSeq        atomic.Uint32
+	mu           sync.Mutex
+	sessions     map[uint32]*Session
+	publicSDKURL string
 }
 
 func NewGateway(host string, port uint16) (*Gateway, error) {
@@ -26,6 +28,24 @@ func NewGateway(host string, port uint16) (*Gateway, error) {
 		return nil, err
 	}
 	playerUID = cfg.PlayerUID
+	playerName = cfg.AccountName
+	world, err := loadWorldBattleResources()
+	if err != nil {
+		return nil, err
+	}
+	playerWorldLevel = world.WorldLevel
+	if _, err := loadPropRules(); err != nil {
+		return nil, err
+	}
+	if _, err := loadNavigationProfiles(); err != nil {
+		return nil, err
+	}
+	if _, err := common.LoadPlayerCosmetics(); err != nil {
+		return nil, err
+	}
+	if _, err := common.LoadCurrencyWarsCatalog(); err != nil {
+		return nil, err
+	}
 	addr, err := net.ResolveUDPAddr("udp", net.JoinHostPort(host, itoa(int(port))))
 	if err != nil {
 		return nil, err
@@ -34,7 +54,7 @@ func NewGateway(host string, port uint16) (*Gateway, error) {
 	if err != nil {
 		return nil, err
 	}
-	return &Gateway{conn: conn, sessions: map[uint32]*Session{}}, nil
+	return &Gateway{conn: conn, sessions: map[uint32]*Session{}, publicSDKURL: cfg.PublicSDKURL}, nil
 }
 
 func itoa(v int) string {
@@ -103,12 +123,15 @@ func (g *Gateway) establishSession(op *NetOperation, addr *net.UDPAddr) error {
 		_, err := g.conn.WriteToUDP(payload, addr)
 		return err
 	}, conv, token)
+	session.publicSDKURL = g.publicSDKURL
 
 	if data, err := common.LoadFreesrData(); err == nil {
 		session.SetJSON(data)
 		PacketLog("[KCP] FreesrData loaded successfully")
 	} else {
 		PacketLog("[ERROR] Failed to load initial freesr-data.json: " + err.Error())
+		session.Close()
+		return fmt.Errorf("refuse session with invalid player data: %w", err)
 	}
 
 	// file watcher: reload freesr-data.json when the SRTools overwrites it
@@ -192,6 +215,7 @@ func (g *Gateway) processKCPPayload(data []byte, addr *net.UDPAddr) {
 // and re-syncs the player in real-time when changed.
 func watchFreesrData(session *Session) {
 	var lastModFreesr time.Time
+	var lastRejectedFreesr time.Time
 	if st, err := statFile("freesr-data.json"); err == nil {
 		lastModFreesr = st
 	}
@@ -221,6 +245,9 @@ func watchFreesrData(session *Session) {
 					lastModFreesr = stFreesr
 					Log("player data updated & live synced to client")
 				}
+			} else if !stFreesr.Equal(lastRejectedFreesr) {
+				Log("[PLAYER DATA REJECTED] keeping previous session data: " + err.Error())
+				lastRejectedFreesr = stFreesr
 			}
 			session.stateMu.Unlock()
 		}