방에 메세지를 브로드캐스팅하는 기능 추가
This commit is contained in:
@ -7,100 +7,54 @@ import (
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"fmt"
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"io"
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"net/http"
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"os"
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"strings"
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"sync"
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common "repositories.action2quare.com/ayo/gocommon"
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"go.mongodb.org/mongo-driver/bson/primitive"
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"repositories.action2quare.com/ayo/gocommon"
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"repositories.action2quare.com/ayo/gocommon/flagx"
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"repositories.action2quare.com/ayo/gocommon/logger"
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"github.com/go-redis/redis/v8"
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"github.com/gorilla/websocket"
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"go.mongodb.org/mongo-driver/bson"
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"go.mongodb.org/mongo-driver/bson/primitive"
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)
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var noSessionFlag = flagx.Bool("nosession", false, "nosession=[true|false]")
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const (
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connStateCachePrefix = "conn_state_"
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connStateScript = `
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local hosts = redis.call('keys',KEYS[1])
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for index, key in ipairs(hosts) do
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local ok = redis.call('hexists', key, KEYS[2])
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if ok == 1 then
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return redis.call('hget', key, KEYS[2])
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end
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end
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return ""
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`
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)
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var ConnStateCacheKey = func() string {
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hn, _ := os.Hostname()
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return connStateCachePrefix + hn
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}()
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type Richconn struct {
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*websocket.Conn
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lock sync.Mutex
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alias primitive.ObjectID
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tags []string
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onClose map[string]func()
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closeFuncLock sync.Mutex
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alias string
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onClose map[string]func()
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}
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func (rc *Richconn) AddTag(name, val string) {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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prefix := name + "="
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for i, tag := range rc.tags {
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if strings.HasPrefix(tag, prefix) {
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rc.tags[i] = prefix + val
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return
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}
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}
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rc.tags = append(rc.tags, prefix+val)
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type UpstreamMessage struct {
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Alias string
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Accid primitive.ObjectID
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Target string
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Body []byte
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}
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func (rc *Richconn) GetTag(name string) string {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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prefix := name + "="
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for _, tag := range rc.tags {
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if strings.HasPrefix(tag, prefix) {
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return tag[len(prefix):]
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}
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}
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return ""
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type DownstreamMessage struct {
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Alias string
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Body string
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}
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func (rc *Richconn) RemoveTag(name string, val string) {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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type CommandType string
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whole := fmt.Sprintf("%s=%s", name, val)
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for i, tag := range rc.tags {
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if tag == whole {
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if i == 0 && len(rc.tags) == 1 {
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rc.tags = nil
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} else {
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lastidx := len(rc.tags) - 1
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if i < lastidx {
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rc.tags[i] = rc.tags[lastidx]
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}
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rc.tags = rc.tags[:lastidx]
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}
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return
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}
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}
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const (
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CommandType_JoinChannel = CommandType("join_channel")
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CommandType_LeaveChannel = CommandType("leave_channel")
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)
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type CommandMessage struct {
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Cmd CommandType
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Args []string
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}
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func (rc *Richconn) RegistOnCloseFunc(name string, f func()) {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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rc.closeFuncLock.Lock()
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defer rc.closeFuncLock.Unlock()
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if rc.onClose == nil {
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f()
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@ -110,8 +64,8 @@ func (rc *Richconn) RegistOnCloseFunc(name string, f func()) {
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}
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func (rc *Richconn) HasOnCloseFunc(name string) bool {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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rc.closeFuncLock.Lock()
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defer rc.closeFuncLock.Unlock()
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if rc.onClose == nil {
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return false
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@ -122,8 +76,8 @@ func (rc *Richconn) HasOnCloseFunc(name string) bool {
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}
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func (rc *Richconn) UnregistOnCloseFunc(name string) (out func()) {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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rc.closeFuncLock.Lock()
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defer rc.closeFuncLock.Unlock()
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if rc.onClose == nil {
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return
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@ -133,52 +87,27 @@ func (rc *Richconn) UnregistOnCloseFunc(name string) (out func()) {
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return
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}
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func (rc *Richconn) Closed() {
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rc.closeFuncLock.Lock()
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defer rc.closeFuncLock.Unlock()
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for _, f := range rc.onClose {
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f()
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}
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}
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func (rc *Richconn) WriteBytes(data []byte) error {
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rc.lock.Lock()
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defer rc.lock.Unlock()
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return rc.WriteMessage(websocket.TextMessage, data)
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}
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type DeliveryMessage struct {
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Alias primitive.ObjectID
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Body []byte
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Command string
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Conn *Richconn
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}
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func (dm *DeliveryMessage) Parse(out any) error {
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return json.Unmarshal(dm.Body, out)
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}
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func (dm *DeliveryMessage) MarshalBinary() (data []byte, err error) {
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return append(dm.Alias[:], dm.Body...), nil
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}
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func (dm *DeliveryMessage) UnmarshalBinary(data []byte) error {
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copy(dm.Alias[:], data[:12])
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dm.Body = data[12:]
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return nil
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}
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type tagconn struct {
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rc *Richconn
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state string
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}
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type tagconnsmap = map[primitive.ObjectID]*tagconn
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type tagconns struct {
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sync.Mutex
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tagconnsmap
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}
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type subhandler struct {
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sync.Mutex
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authCache *common.AuthCollection
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conns map[primitive.ObjectID]*Richconn
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aliases map[primitive.ObjectID]primitive.ObjectID
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tags map[primitive.ObjectID]*tagconns
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deliveryChan chan DeliveryMessage
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url string
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redisSync *redis.Client
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authCache *gocommon.AuthCollection
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redisMsgChanName string
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redisCmdChanName string
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redisSync *redis.Client
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connsLock sync.Mutex
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connectedAlias map[string]bool
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connInOutChan chan *Richconn
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deliveryChan chan any
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}
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// WebsocketHandler :
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@ -191,28 +120,30 @@ type wsConfig struct {
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SyncPipeline string `json:"ws_sync_pipeline"`
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}
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func NewWebsocketHandler(authglobal common.AuthCollectionGlobal) (wsh *WebsocketHandler) {
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func NewWebsocketHandler(authglobal gocommon.AuthCollectionGlobal) (wsh *WebsocketHandler) {
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var config wsConfig
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gocommon.LoadConfig(&config)
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redisSync, err := gocommon.NewRedisClient(config.SyncPipeline, 0)
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if err != nil {
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panic(err)
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}
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authCaches := make(map[string]*subhandler)
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for _, region := range authglobal.Regions() {
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sh := &subhandler{
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authCache: authglobal.Get(region),
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conns: make(map[primitive.ObjectID]*Richconn),
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aliases: make(map[primitive.ObjectID]primitive.ObjectID),
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tags: make(map[primitive.ObjectID]*tagconns),
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deliveryChan: make(chan DeliveryMessage, 1000),
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authCache: authglobal.Get(region),
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redisMsgChanName: fmt.Sprintf("_wsh_msg_%s", region),
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redisCmdChanName: fmt.Sprintf("_wsh_cmd_%s", region),
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redisSync: redisSync,
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connectedAlias: make(map[string]bool),
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connInOutChan: make(chan *Richconn),
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deliveryChan: make(chan any, 1000),
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}
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authCaches[region] = sh
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}
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var config wsConfig
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common.LoadConfig(&config)
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redisSync, err := common.NewRedisClient(config.SyncPipeline, 0)
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if err != nil {
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panic(err)
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}
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return &WebsocketHandler{
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authCaches: authCaches,
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RedisSync: redisSync,
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@ -220,292 +151,190 @@ func NewWebsocketHandler(authglobal common.AuthCollectionGlobal) (wsh *Websocket
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}
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func (ws *WebsocketHandler) Destructor() {
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if ws.RedisSync != nil {
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ws.RedisSync.Del(context.Background(), ConnStateCacheKey)
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}
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}
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func (ws *WebsocketHandler) DeliveryChannel(region string) <-chan DeliveryMessage {
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return ws.authCaches[region].deliveryChan
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}
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func (ws *WebsocketHandler) Conn(region string, alias primitive.ObjectID) *Richconn {
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func (ws *WebsocketHandler) IsConnected(region string, alias string) bool {
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if sh := ws.authCaches[region]; sh != nil {
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return sh.conns[alias]
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return sh.connected(alias)
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}
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return nil
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return false
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}
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func (ws *WebsocketHandler) JoinTag(region string, tag primitive.ObjectID, tid primitive.ObjectID, rc *Richconn, hint string) error {
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if sh := ws.authCaches[region]; sh != nil {
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sh.joinTag(tag, tid, rc, hint)
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}
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return nil
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}
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func (ws *WebsocketHandler) LeaveTag(region string, tag primitive.ObjectID, tid primitive.ObjectID) error {
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if sh := ws.authCaches[region]; sh != nil {
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sh.leaveTag(tag, tid)
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}
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return nil
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}
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func (ws *WebsocketHandler) SetStateInTag(region string, tag primitive.ObjectID, tid primitive.ObjectID, state string, hint string) error {
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if sh := ws.authCaches[region]; sh != nil {
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sh.setStateInTag(tag, tid, state, hint)
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}
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return nil
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}
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func (ws *WebsocketHandler) BroadcastRaw(region string, tag primitive.ObjectID, raw []byte) {
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if sh := ws.authCaches[region]; sh != nil {
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if cs := sh.cloneTag(tag); len(cs) > 0 {
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go func(raw []byte) {
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for _, c := range cs {
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if c != nil {
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c.WriteBytes(raw)
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}
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}
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}(raw)
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}
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}
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}
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func (ws *WebsocketHandler) Broadcast(region string, tag primitive.ObjectID, doc bson.M) {
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raw, _ := json.Marshal(doc)
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ws.BroadcastRaw(region, tag, raw)
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}
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var onlineQueryScriptHash string
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func (ws *WebsocketHandler) RegisterHandlers(ctx context.Context, serveMux *http.ServeMux, prefix string) error {
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ws.RedisSync.Del(context.Background(), ConnStateCacheKey)
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scriptHash, err := ws.RedisSync.ScriptLoad(context.Background(), connStateScript).Result()
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if err != nil {
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return err
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}
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onlineQueryScriptHash = scriptHash
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for region, sh := range ws.authCaches {
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if region == "default" {
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region = ""
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}
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sh.url = common.MakeHttpHandlerPattern(prefix, region, "ws")
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sh.redisSync = ws.RedisSync
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url := gocommon.MakeHttpHandlerPattern(prefix, region, "ws")
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if *noSessionFlag {
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serveMux.HandleFunc(sh.url, sh.upgrade_nosession)
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serveMux.HandleFunc(url, sh.upgrade_nosession)
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} else {
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serveMux.HandleFunc(sh.url, sh.upgrade)
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serveMux.HandleFunc(url, sh.upgrade)
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}
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go sh.mainLoop(ctx)
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}
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return nil
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}
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func (sh *subhandler) cloneTag(tag primitive.ObjectID) (out []*Richconn) {
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sh.Lock()
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cs := sh.tags[tag]
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sh.Unlock()
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func (sh *subhandler) setConnected(alias string, connected bool) {
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sh.connsLock.Lock()
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defer sh.connsLock.Unlock()
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if cs == nil {
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return nil
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}
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cs.Lock()
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defer cs.Unlock()
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out = make([]*Richconn, 0, len(cs.tagconnsmap))
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for _, c := range cs.tagconnsmap {
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out = append(out, c.rc)
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}
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return
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}
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func (sh *subhandler) joinTag(tag primitive.ObjectID, tid primitive.ObjectID, rc *Richconn, hint string) {
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sh.Lock()
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cs := sh.tags[tag]
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if cs == nil {
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cs = &tagconns{
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tagconnsmap: make(map[primitive.ObjectID]*tagconn),
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}
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}
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sh.Unlock()
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cs.Lock()
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states := make([]bson.M, 0, len(cs.tagconnsmap))
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for tid, conn := range cs.tagconnsmap {
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states = append(states, bson.M{
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"_id": tid,
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"_hint": hint,
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"state": conn.state,
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})
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}
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cs.tagconnsmap[tid] = &tagconn{rc: rc}
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cs.Unlock()
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|
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sh.Lock()
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sh.tags[tag] = cs
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sh.Unlock()
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|
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if len(states) > 0 {
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s, _ := json.Marshal(states)
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rc.WriteBytes(s)
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}
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}
|
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|
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func (sh *subhandler) leaveTag(tag primitive.ObjectID, tid primitive.ObjectID) {
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sh.Lock()
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defer sh.Unlock()
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|
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cs := sh.tags[tag]
|
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if cs == nil {
|
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return
|
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}
|
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|
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delete(cs.tagconnsmap, tid)
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if len(cs.tagconnsmap) == 0 {
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delete(sh.tags, tag)
|
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if connected {
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sh.connectedAlias[alias] = true
|
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} else {
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sh.tags[tag] = cs
|
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delete(sh.connectedAlias, alias)
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}
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}
|
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|
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func (sh *subhandler) setStateInTag(tag primitive.ObjectID, tid primitive.ObjectID, state string, hint string) {
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sh.Lock()
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cs := sh.tags[tag]
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sh.Unlock()
|
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func (sh *subhandler) connected(alias string) bool {
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sh.connsLock.Lock()
|
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defer sh.connsLock.Unlock()
|
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|
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if cs == nil {
|
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return
|
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}
|
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_, ok := sh.connectedAlias[alias]
|
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return ok
|
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}
|
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|
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cs.Lock()
|
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defer cs.Unlock()
|
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|
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if tagconn := cs.tagconnsmap[tid]; tagconn != nil {
|
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tagconn.state = state
|
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|
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var clone []*Richconn
|
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for _, c := range cs.tagconnsmap {
|
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clone = append(clone, c.rc)
|
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func (sh *subhandler) mainLoop(ctx context.Context) {
|
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defer func() {
|
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s := recover()
|
||||
if s != nil {
|
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logger.Error(s)
|
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}
|
||||
raw, _ := json.Marshal(map[string]any{
|
||||
"_id": tid,
|
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"_hint": hint,
|
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"state": state,
|
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})
|
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go func(raw []byte) {
|
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for _, c := range clone {
|
||||
c.WriteBytes(raw)
|
||||
}
|
||||
}(raw)
|
||||
}
|
||||
}
|
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}()
|
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|
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func (wsh *WebsocketHandler) GetState(alias primitive.ObjectID) (string, error) {
|
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state, err := wsh.RedisSync.EvalSha(context.Background(), onlineQueryScriptHash, []string{
|
||||
connStateCachePrefix + "*", alias.Hex(),
|
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}).Result()
|
||||
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return state.(string), nil
|
||||
}
|
||||
|
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func (wsh *WebsocketHandler) IsOnline(alias primitive.ObjectID) (bool, error) {
|
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state, err := wsh.GetState(alias)
|
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if err != nil {
|
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logger.Error("IsOnline failed. err :", err)
|
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return false, err
|
||||
}
|
||||
return len(state) > 0, nil
|
||||
}
|
||||
|
||||
func (sh *subhandler) closeConn(accid primitive.ObjectID) {
|
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sh.Lock()
|
||||
defer sh.Unlock()
|
||||
|
||||
if alias, ok := sh.aliases[accid]; ok {
|
||||
if old := sh.conns[alias]; old != nil {
|
||||
old.Close()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (sh *subhandler) addConn(conn *Richconn, accid primitive.ObjectID) {
|
||||
sh.Lock()
|
||||
defer sh.Unlock()
|
||||
|
||||
sh.conns[conn.alias] = conn
|
||||
sh.aliases[accid] = conn.alias
|
||||
}
|
||||
|
||||
func upgrade_core(sh *subhandler, conn *websocket.Conn, initState string, accid primitive.ObjectID, alias primitive.ObjectID) {
|
||||
sh.closeConn(accid)
|
||||
|
||||
newconn := sh.makeRichConn(alias, conn)
|
||||
sh.addConn(newconn, accid)
|
||||
sh.redisSync.HSet(context.Background(), ConnStateCacheKey, alias.Hex(), initState).Result()
|
||||
|
||||
go func(c *Richconn, accid primitive.ObjectID, deliveryChan chan<- DeliveryMessage) {
|
||||
go func() {
|
||||
var pubsub *redis.PubSub
|
||||
for {
|
||||
mt, p, err := c.ReadMessage()
|
||||
if pubsub == nil {
|
||||
pubsub = sh.redisSync.Subscribe(ctx, sh.redisMsgChanName, sh.redisCmdChanName)
|
||||
}
|
||||
|
||||
raw, err := pubsub.ReceiveMessage(ctx)
|
||||
if err == nil {
|
||||
if raw.Channel == sh.redisMsgChanName {
|
||||
var msg UpstreamMessage
|
||||
if err := json.Unmarshal([]byte(raw.Payload), &msg); err == nil {
|
||||
sh.deliveryChan <- &msg
|
||||
} else {
|
||||
logger.Println("decode UpstreamMessage failed :", err)
|
||||
}
|
||||
} else if raw.Channel == sh.redisCmdChanName {
|
||||
var cmd CommandMessage
|
||||
if err := json.Unmarshal([]byte(raw.Payload), &cmd); err == nil {
|
||||
sh.deliveryChan <- &cmd
|
||||
} else {
|
||||
logger.Println("decode UpstreamMessage failed :", err)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
logger.Println("pubsub.ReceiveMessage failed :", err)
|
||||
pubsub.Close()
|
||||
pubsub = nil
|
||||
|
||||
if ctx.Err() != nil {
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
entireConns := make(map[string]*Richconn)
|
||||
rooms := make(map[string]*room)
|
||||
findRoom := func(name string, create bool) *room {
|
||||
room := rooms[name]
|
||||
if room == nil && create {
|
||||
room = makeRoom(name)
|
||||
rooms[name] = room
|
||||
room.start(ctx)
|
||||
}
|
||||
return room
|
||||
}
|
||||
|
||||
for {
|
||||
select {
|
||||
case usermsg := <-sh.deliveryChan:
|
||||
switch usermsg := usermsg.(type) {
|
||||
case *UpstreamMessage:
|
||||
target := usermsg.Target
|
||||
if target[0] == '#' {
|
||||
// 룸에 브로드캐스팅
|
||||
roomName := target[1:]
|
||||
if room := findRoom(roomName, false); room != nil {
|
||||
room.broadcast(usermsg)
|
||||
}
|
||||
} else if target[0] == '@' {
|
||||
// TODO : 특정 유저에게만
|
||||
}
|
||||
|
||||
case *CommandMessage:
|
||||
if usermsg.Cmd == CommandType_JoinChannel && len(usermsg.Args) == 2 {
|
||||
alias := usermsg.Args[0]
|
||||
roomName := usermsg.Args[1]
|
||||
|
||||
conn := entireConns[alias]
|
||||
if conn != nil {
|
||||
findRoom(roomName, true).in(conn)
|
||||
}
|
||||
} else if usermsg.Cmd == CommandType_JoinChannel && len(usermsg.Args) == 2 {
|
||||
alias := usermsg.Args[0]
|
||||
roomName := usermsg.Args[1]
|
||||
|
||||
conn := entireConns[alias]
|
||||
if conn != nil {
|
||||
if room := findRoom(roomName, false); room != nil {
|
||||
room.out(conn)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
default:
|
||||
logger.Println("usermsg is unknown type")
|
||||
}
|
||||
|
||||
case c := <-sh.connInOutChan:
|
||||
if c.Conn == nil {
|
||||
delete(entireConns, c.alias)
|
||||
sh.setConnected(c.alias, false)
|
||||
for _, room := range rooms {
|
||||
room.out(c)
|
||||
}
|
||||
c.Closed()
|
||||
} else {
|
||||
sh.setConnected(c.alias, true)
|
||||
entireConns[c.alias] = c
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func upgrade_core(sh *subhandler, conn *websocket.Conn, accid primitive.ObjectID, alias string) {
|
||||
newconn := sh.makeRichConn(alias, conn)
|
||||
sh.connInOutChan <- newconn
|
||||
|
||||
go func(c *Richconn, accid primitive.ObjectID, deliveryChan chan<- any) {
|
||||
for {
|
||||
messageType, r, err := c.NextReader()
|
||||
|
||||
// 웹소켓에서 직접 메시지를 받지 않는다.
|
||||
if r != nil {
|
||||
io.Copy(io.Discard, r)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
c.Close()
|
||||
break
|
||||
}
|
||||
|
||||
switch mt {
|
||||
case websocket.BinaryMessage:
|
||||
msg := DeliveryMessage{
|
||||
Alias: c.alias,
|
||||
Body: p,
|
||||
Conn: c,
|
||||
}
|
||||
deliveryChan <- msg
|
||||
|
||||
case websocket.TextMessage:
|
||||
msg := string(p)
|
||||
opcodes := strings.Split(msg, ";")
|
||||
for _, opcode := range opcodes {
|
||||
if strings.HasPrefix(opcode, "ps:") {
|
||||
sh.redisSync.HSet(context.Background(), ConnStateCacheKey, alias.Hex(), opcode[3:]).Result()
|
||||
} else if strings.HasPrefix(opcode, "cmd:") {
|
||||
cmd := opcode[4:]
|
||||
msg := DeliveryMessage{
|
||||
Alias: c.alias,
|
||||
Command: cmd,
|
||||
Conn: c,
|
||||
}
|
||||
deliveryChan <- msg
|
||||
}
|
||||
}
|
||||
|
||||
if messageType == websocket.CloseMessage {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
sh.redisSync.HDel(context.Background(), ConnStateCacheKey, c.alias.Hex()).Result()
|
||||
|
||||
sh.Lock()
|
||||
delete(sh.conns, c.alias)
|
||||
delete(sh.aliases, accid)
|
||||
sh.Unlock()
|
||||
|
||||
var funcs []func()
|
||||
c.lock.Lock()
|
||||
for _, f := range c.onClose {
|
||||
funcs = append(funcs, f)
|
||||
}
|
||||
c.onClose = nil
|
||||
c.lock.Unlock()
|
||||
|
||||
for _, f := range funcs {
|
||||
f()
|
||||
}
|
||||
c.Conn = nil
|
||||
sh.connInOutChan <- c
|
||||
}(newconn, accid, sh.deliveryChan)
|
||||
}
|
||||
|
||||
@ -551,17 +380,14 @@ func (sh *subhandler) upgrade_nosession(w http.ResponseWriter, r *http.Request)
|
||||
return
|
||||
}
|
||||
|
||||
alias := accid
|
||||
var alias string
|
||||
if v := r.Header.Get("AS-X-ALIAS"); len(v) > 0 {
|
||||
alias = common.ParseObjectID(v)
|
||||
alias = v
|
||||
} else {
|
||||
alias = accid.Hex()
|
||||
}
|
||||
|
||||
initState := r.Header.Get("As-X-Tavern-InitialState")
|
||||
if len(initState) == 0 {
|
||||
initState = "online"
|
||||
}
|
||||
|
||||
upgrade_core(sh, conn, initState, accid, alias)
|
||||
upgrade_core(sh, conn, accid, alias)
|
||||
}
|
||||
|
||||
func (sh *subhandler) upgrade(w http.ResponseWriter, r *http.Request) {
|
||||
@ -597,20 +423,17 @@ func (sh *subhandler) upgrade(w http.ResponseWriter, r *http.Request) {
|
||||
return
|
||||
}
|
||||
|
||||
alias := accid
|
||||
var alias string
|
||||
if v := r.Header.Get("AS-X-ALIAS"); len(v) > 0 {
|
||||
alias = common.ParseObjectID(v)
|
||||
alias = v
|
||||
} else {
|
||||
alias = accid.Hex()
|
||||
}
|
||||
|
||||
initState := r.Header.Get("As-X-Tavern-InitialState")
|
||||
if len(initState) == 0 {
|
||||
initState = "online"
|
||||
}
|
||||
|
||||
upgrade_core(sh, conn, initState, accid, alias)
|
||||
upgrade_core(sh, conn, accid, alias)
|
||||
}
|
||||
|
||||
func (sh *subhandler) makeRichConn(alias primitive.ObjectID, conn *websocket.Conn) *Richconn {
|
||||
func (sh *subhandler) makeRichConn(alias string, conn *websocket.Conn) *Richconn {
|
||||
rc := Richconn{
|
||||
Conn: conn,
|
||||
alias: alias,
|
||||
|
||||
Reference in New Issue
Block a user