223 lines
4.7 KiB
Go
223 lines
4.7 KiB
Go
package utils
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"net"
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"reflect"
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"strings"
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"sync"
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"github.com/bedrock-tool/bedrocktool/locale"
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"github.com/fatih/color"
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"github.com/sandertv/gophertunnel/minecraft/protocol"
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"github.com/sandertv/gophertunnel/minecraft/protocol/packet"
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"github.com/sirupsen/logrus"
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"golang.org/x/exp/slices"
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)
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var pool = packet.NewPool()
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var MutedPackets = []string{
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"packet.UpdateBlock",
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"packet.MoveActorAbsolute",
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"packet.SetActorMotion",
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"packet.SetTime",
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"packet.RemoveActor",
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"packet.AddActor",
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"packet.UpdateAttributes",
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"packet.Interact",
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"packet.LevelEvent",
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"packet.SetActorData",
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"packet.MoveActorDelta",
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"packet.MovePlayer",
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"packet.BlockActorData",
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"packet.PlayerAuthInput",
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"packet.LevelChunk",
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"packet.LevelSoundEvent",
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"packet.ActorEvent",
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"packet.NetworkChunkPublisherUpdate",
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"packet.UpdateSubChunkBlocks",
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"packet.SubChunk",
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"packet.SubChunkRequest",
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"packet.Animate",
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"packet.NetworkStackLatency",
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"packet.InventoryTransaction",
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"packet.PlaySound",
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}
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var (
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ExtraVerbose []string
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FLog io.Writer
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dmpLock sync.Mutex
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)
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func dmpStruct(level int, inputStruct any, withType bool, isInList bool) (s string) {
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tBase := strings.Repeat("\t", level)
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if inputStruct == nil {
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return "nil"
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}
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ii := reflect.Indirect(reflect.ValueOf(inputStruct))
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typeName := reflect.TypeOf(inputStruct).String()
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typeString := ""
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if withType {
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if slices.Contains([]string{"bool", "string"}, typeName) {
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} else {
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typeString = typeName + " "
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}
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}
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if strings.HasPrefix(typeName, "protocol.Optional") {
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v := ii.MethodByName("Value").Call(nil)
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val, set := v[0], v[1]
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if !set.Bool() {
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s += typeName + " Not Set"
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} else {
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s += typeName + "{\n" + tBase + "\t"
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s += dmpStruct(level+1, val.Interface(), false, false)
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s += "\n" + tBase + "}"
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}
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return
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}
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if ii.Kind() == reflect.Struct {
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if ii.NumField() == 0 {
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s += typeName + "{}"
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} else {
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s += typeName + "{\n"
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for i := 0; i < ii.NumField(); i++ {
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fieldType := ii.Type().Field(i)
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if fieldType.IsExported() {
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field := ii.Field(i).Interface()
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d := dmpStruct(level+1, field, true, false)
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s += tBase + fmt.Sprintf("\t%s = %s\n", fieldType.Name, d)
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} else {
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s += tBase + " " + fieldType.Name + " (unexported)"
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}
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}
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s += tBase + "}"
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}
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} else if ii.Kind() == reflect.Slice {
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var t reflect.Type
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is_elem_struct := false
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if ii.Len() > 0 {
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e := ii.Index(0)
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t = reflect.TypeOf(e.Interface())
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is_elem_struct = t.Kind() == reflect.Struct
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}
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if ii.Len() > 1000 {
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s += "[<slice too long>]"
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} else if ii.Len() == 0 {
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s += typeString + "[]"
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} else {
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s += typeString + "["
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if is_elem_struct {
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s += "\n"
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}
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for i := 0; i < ii.Len(); i++ {
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if is_elem_struct {
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s += tBase + "\t"
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}
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s += dmpStruct(level+1, ii.Index(i).Interface(), false, true)
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if is_elem_struct {
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s += "\n"
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} else {
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s += " "
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}
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}
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if is_elem_struct {
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s += tBase
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}
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s += "]"
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}
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} else if ii.Kind() == reflect.Map {
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j, err := json.MarshalIndent(ii.Interface(), tBase, "\t")
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if err != nil {
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s += err.Error()
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}
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s += string(j)
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} else {
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is_array := ii.Kind() == reflect.Array
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if !isInList && !is_array {
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s += typeString
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}
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s += fmt.Sprintf("%#v", ii.Interface())
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}
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return s
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}
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func DumpStruct(data interface{}) {
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if FLog == nil {
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return
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}
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FLog.Write([]byte(dmpStruct(0, data, true, false)))
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FLog.Write([]byte("\n\n\n"))
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}
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func PacketLogger(header packet.Header, payload []byte, src, dst net.Addr) {
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var pk packet.Packet
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if pkFunc, ok := pool[header.PacketID]; ok {
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pk = pkFunc()
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} else {
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pk = &packet.Unknown{PacketID: header.PacketID}
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}
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if pk.ID() == packet.IDRequestNetworkSettings {
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ClientAddr = src
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}
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defer func() {
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if recoveredErr := recover(); recoveredErr != nil {
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logrus.Errorf("%T: %w", pk, recoveredErr)
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}
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}()
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pk.Unmarshal(protocol.NewReader(bytes.NewBuffer(payload), 0))
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if FLog != nil {
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dmpLock.Lock()
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defer dmpLock.Unlock()
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FLog.Write([]byte(dmpStruct(0, pk, true, false)))
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FLog.Write([]byte("\n\n\n"))
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}
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pkName := reflect.TypeOf(pk).String()[1:]
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if slices.Contains(MutedPackets, pkName) {
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return
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}
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switch pk := pk.(type) {
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case *packet.Disconnect:
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logrus.Infof(locale.Loc("disconnect", locale.Strmap{"Pk": pk}))
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}
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dirS2C := color.GreenString("S") + "->" + color.CyanString("C")
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dirC2S := color.CyanString("C") + "->" + color.GreenString("S")
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var dir string = dirS2C
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if ClientAddr != nil {
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if src == ClientAddr {
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dir = dirC2S
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}
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} else {
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srcAddr, _, _ := net.SplitHostPort(src.String())
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if IPPrivate(net.ParseIP(srcAddr)) {
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dir = dirS2C
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}
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}
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logrus.Debugf("%s 0x%02x, %s", dir, pk.ID(), pkName)
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if slices.Contains(ExtraVerbose, pkName) {
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logrus.Debugf("%+v", pk)
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}
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}
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