356 lines
9.4 KiB
Go
356 lines
9.4 KiB
Go
package serverCommunication
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import (
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"context"
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"crypto/rand"
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"math/big"
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"time"
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"github.com/gofiber/websocket/v2"
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"go.mongodb.org/mongo-driver/bson"
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"krakatoa.net/backend/modules/cache"
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kraSettingsConfig "krakatoa.net/backend/modules/configs/kraSettingsConfig"
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"krakatoa.net/backend/modules/kraProtocol"
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"krakatoa.net/backend/modules/logger"
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"krakatoa.net/backend/modules/mongo"
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"krakatoa.net/backend/modules/structs"
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)
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func HandleWebMessage(isVoice bool, conn *websocket.Conn, uuid string, msg []byte) {
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var err error
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var raw []byte
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webClient := getWebClientByConn(conn)
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if webClient == nil {
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logger.Web.Debugln("webClient is nil")
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return
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}
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status, cmdID, dest, cmdNumber, args := kraProtocol.DecodeWebMessage(msg)
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if status == kraProtocol.StatusReply {
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if isVoice {
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logger.WebVoice.Debugln("Reply from Web Voice", webClient.VoiceCmdIDsByBackend)
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for _, data := range webClient.SendVoiceQueueMessages {
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if data.CmdID == cmdID { // forward to target dest
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mcClient := GetMinecraftClientByName(getMinecraftServerNameByDest(data.OriginDest))
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logger.WebVoice.Debugln("Forwarding reply from web voice to mc client", mcClient.Name, "cmdID", cmdID)
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raw = kraProtocol.EncodeJavaMessage(kraProtocol.StatusReply, data.OriginCmdID, 0, webClient.Uuid, 0, "")
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err = mcClient.SendBinaryMessage(raw)
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if err != nil {
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logger.Web.Warnln("write:", err)
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return
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}
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// remove cmdID from VoiceCMDIDsByBackend list
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webClient.RemoveVoiceCmdIDByBackend(cmdID)
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// remove cmdID from minecraftCmdIDs
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mcClient.RemoveCmdID(data.OriginCmdID)
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return
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}
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}
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if isCmdIDInList(webClient.VoiceCmdIDs, cmdID) {
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webClient.RemoveVoiceCmdID(cmdID)
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}
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} else {
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logger.WebMobile.Debugln("Reply from Web Mobile", webClient.MobileCmdIDsByBackend)
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for _, data := range webClient.MobileCmdIDsByBackend {
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if data.WebCmdID == cmdID { // forward to target dest
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mcClient := GetMinecraftClientByName(getMinecraftServerNameByDest(data.DestFromMinecraftServer))
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logger.WebMobile.Debugln("Forwarding reply from web mobile to mc client", mcClient.Name, "cmdID", cmdID)
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raw = kraProtocol.EncodeJavaMessage(kraProtocol.StatusReply, data.CmdIDFromMinecraftServer, 0, webClient.Uuid, 0, "")
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err = mcClient.SendBinaryMessage(raw)
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if err != nil {
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logger.Web.Warnln("write:", err)
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return
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}
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// remove cmdID from VoiceCMDIDsByBackend list
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webClient.RemoveMobileCmdIDByBackend(cmdID)
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// remove cmdID from minecraftCmdIDs
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mcClient.RemoveCmdID(data.CmdIDFromMinecraftServer)
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return
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}
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}
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if isCmdIDInList(webClient.MobileCmdIDs, cmdID) {
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webClient.RemoveMobileCmdID(cmdID)
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}
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}
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return
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}
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// ack
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if status == kraProtocol.StatusGet {
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var cmdIDInList bool
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logger.Web.Println("cmdID", isVoice, webClient.VoiceCmdIDs, webClient.MobileCmdIDs)
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if isVoice {
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cmdIDInList = isCmdIDInList(webClient.VoiceCmdIDs, cmdID)
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} else {
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cmdIDInList = isCmdIDInList(webClient.MobileCmdIDs, cmdID)
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}
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if cmdIDInList { // cmdID already in queue
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusMessageAlreadyInQueue, cmdID, cmdNumber, "")
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err = webClient.SendBinaryMessage(conn, raw)
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if err != nil {
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logger.WebVoice.Warnln("write:", err)
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}
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return
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}
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// add cmdID to list
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if isVoice {
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logger.Web.Debugln("voiceCmdIDs", webClient.VoiceCmdIDs)
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webClient.VoiceCmdIDs = append(webClient.VoiceCmdIDs, cmdID)
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logger.Web.Debugln("after voiceCmdIDs", webClient.VoiceCmdIDs)
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} else {
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logger.Web.Debugln("MobileCmdIDs", webClient.MobileCmdIDs)
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webClient.MobileCmdIDs = append(webClient.MobileCmdIDs, cmdID)
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logger.Web.Debugln("after MobileCmdIDs", webClient.MobileCmdIDs)
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}
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}
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if dest == kraProtocol.DestProxy || dest == kraProtocol.DestPlayersCurrentServer { // forwarding message to java / minecraft
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var originDest int
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if isVoice {
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originDest = kraProtocol.DestVoice
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} else {
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originDest = kraProtocol.DestMobile
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}
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err = SendMessageToMinecraftServer(originDest, cmdID, status, dest, uuid, cmdNumber, args)
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if err != nil {
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raw := kraProtocol.EncodeWebMessage(kraProtocol.StatusErrTryAgain, cmdID, cmdNumber, args)
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webClient.SendBinaryMessage(conn, raw)
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}
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return
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} else { // web
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if isVoice { // message from voice
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if dest == kraProtocol.DestMobile { // forwarding message to mobile
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if webClient.MobileConn != nil { // mobile is connected
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusReply, cmdID, cmdNumber, args)
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err = webClient.SendBinaryMessage(webClient.MobileConn, raw)
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if err != nil {
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logger.WebVoice.Warnln("write:", err)
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}
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} else { // mobile not connected
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusSend, 58299, cmdNumber, "")
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err = webClient.SendBinaryMessage(conn, raw)
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if err != nil {
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logger.WebVoice.Warnln("write:", err)
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}
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}
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} else if dest == kraProtocol.DestBackend {
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resArgs := voiceCommandHandler(cmdNumber, uuid)
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if status == kraProtocol.StatusGet {
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logger.Web.Debugln("status get reply")
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusReply, cmdID, cmdNumber, resArgs)
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err = webClient.SendBinaryMessage(conn, raw)
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if err != nil {
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logger.WebVoice.Warnln("write:", err)
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}
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}
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}
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} else { // message from mobile
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if dest == kraProtocol.DestVoice { // forwarding message to voice
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if webClient.VoiceConn != nil { // voice connected
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusSend, cmdID, cmdNumber, args)
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err = webClient.SendBinaryMessage(webClient.VoiceConn, raw)
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if err != nil {
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logger.WebMobile.Warnln("write:", err)
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}
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} else { // voice not connected
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusSend, 5456, cmdNumber, "")
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err = webClient.SendBinaryMessage(conn, raw)
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if err != nil {
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logger.WebMobile.Warnln("write:", err)
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}
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}
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} else if dest == kraProtocol.DestBackend {
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resArgs := mobileCommandHandler(cmdNumber)
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if status == kraProtocol.StatusGet {
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusReply, cmdID, cmdNumber, resArgs)
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err = webClient.SendBinaryMessage(conn, raw)
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if err != nil {
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logger.WebVoice.Warnln("write:", err)
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}
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}
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} else { // err dest unknown
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raw = kraProtocol.EncodeWebMessage(kraProtocol.StatusErrTryAgain, cmdID, cmdNumber, "")
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err = webClient.SendBinaryMessage(conn, raw)
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if err != nil {
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logger.WebMobile.Warnln("write:", err)
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}
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}
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}
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}
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}
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func voiceCommandHandler(cmdNumber int, uuid string) (args string) {
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switch cmdNumber {
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case 36006: // mobile web code
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logger.WebMobile.Println("case 36006", uuid)
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mobileWebCode, err := generateMobileWebCode()
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if err != nil {
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logger.WebVoice.Warnln("gen mobileWebCode", err)
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}
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filter := bson.D{{"uuid", uuid}}
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update := bson.D{{"$set", bson.D{{"mobileWebCode", mobileWebCode}}}}
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_, err = mongo.PlayersCollection.UpdateOne(context.TODO(), filter, update)
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if err != nil {
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logger.WebVoice.Println("updRes", err)
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}
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return mobileWebCode
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case 28450: // testing message to mobile
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time.Sleep(time.Second * 10)
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return "hello my friend"
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default:
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logger.WebVoice.Println("case default", cmdNumber)
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return "vdefault"
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}
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}
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func mobileCommandHandler(cmdNumber int) (args string) {
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switch cmdNumber {
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case 15857: // testing message from voice
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return "from voice"
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default:
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logger.WebMobile.Println("case default", cmdNumber)
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return "mdefault"
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}
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}
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func generateMobileWebCode() (string, error) {
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mobileWebCodeLetters := kraSettingsConfig.Cfg.VoiceWebCode.Letters
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mobileWebCodeLength := kraSettingsConfig.Cfg.VoiceWebCode.Length
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ret := make([]byte, mobileWebCodeLength)
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for i := 0; i < mobileWebCodeLength; i++ {
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num, err := rand.Int(rand.Reader, big.NewInt(int64(len(mobileWebCodeLetters))))
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if err != nil {
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return "", err
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}
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ret[i] = mobileWebCodeLetters[num.Int64()]
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}
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return string(ret), nil
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}
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/*
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func IsMessageInAckQueue(conn *websocket.Conn, cmdID int) bool {
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for _, client := range cache.VoiceCmdIDs {
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if client.CmdID == cmdID && client.Conn == conn {
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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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func getWebClientByConn(conn *websocket.Conn) *structs.WebClient {
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for _, client := range cache.WebClients {
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if client.VoiceConn == conn || client.MobileConn == conn {
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return client
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}
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}
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return nil
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}
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func GetWebClientOrCreateNewByUuid(uuid string) *structs.WebClient {
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webClient := GetWebClientByUuid(uuid)
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if webClient == nil {
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// add to clients list
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client := &structs.WebClient{Uuid: uuid}
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cache.WebClients[uuid] = client
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logger.Web.Debugln("new client")
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return client
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}
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return webClient
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}
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func GetWebClientByUuid(Uuid string) *structs.WebClient {
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logger.Web.Debugln("len clients", len(cache.WebClients), Uuid)
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// return client from clients list
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for uuid, client := range cache.WebClients {
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if uuid == Uuid {
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logger.Web.Debugln("return client", client.Uuid)
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return client
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}
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}
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logger.Web.Debugln("GetWebClientByUuid not found")
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return nil
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}
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// @Deprecated
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func IsVoiceAndMobileSocketConnected(uuid string) string {
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webClient := GetWebClientByUuid(uuid)
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if webClient == nil {
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return "0"
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}
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if webClient.MobileConn == nil && webClient.VoiceConn == nil {
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return "0"
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} else {
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return "1"
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}
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}
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func isCmdIDInList(arr []int, cmdID int) bool {
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for i := 0; i < len(arr); i++ {
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if arr[i] == cmdID {
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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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