You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
388 lines
9.7 KiB
388 lines
9.7 KiB
// Copyright © 2023 OpenIM. All rights reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package msggateway
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"net/http"
|
|
"strconv"
|
|
"sync"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/constant"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/cache"
|
|
|
|
"github.com/redis/go-redis/v9"
|
|
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/discoveryregistry"
|
|
|
|
"github.com/go-playground/validator/v10"
|
|
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/log"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/tokenverify"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/errs"
|
|
"github.com/OpenIMSDK/Open-IM-Server/pkg/utils"
|
|
)
|
|
|
|
type LongConnServer interface {
|
|
Run() error
|
|
wsHandler(w http.ResponseWriter, r *http.Request)
|
|
GetUserAllCons(userID string) ([]*Client, bool)
|
|
GetUserPlatformCons(userID string, platform int) ([]*Client, bool, bool)
|
|
Validate(s interface{}) error
|
|
SetCacheHandler(cache cache.MsgModel)
|
|
SetDiscoveryRegistry(client discoveryregistry.SvcDiscoveryRegistry)
|
|
UnRegister(c *Client)
|
|
Compressor
|
|
Encoder
|
|
MessageHandler
|
|
}
|
|
|
|
var bufferPool = sync.Pool{
|
|
New: func() interface{} {
|
|
return make([]byte, 1024)
|
|
},
|
|
}
|
|
|
|
type WsServer struct {
|
|
port int
|
|
wsMaxConnNum int64
|
|
registerChan chan *Client
|
|
unregisterChan chan *Client
|
|
kickHandlerChan chan *kickHandler
|
|
clients *UserMap
|
|
clientPool sync.Pool
|
|
onlineUserNum int64
|
|
onlineUserConnNum int64
|
|
handshakeTimeout time.Duration
|
|
hubServer *Server
|
|
validate *validator.Validate
|
|
cache cache.MsgModel
|
|
Compressor
|
|
Encoder
|
|
MessageHandler
|
|
}
|
|
type kickHandler struct {
|
|
clientOK bool
|
|
oldClients []*Client
|
|
newClient *Client
|
|
}
|
|
|
|
func (ws *WsServer) SetDiscoveryRegistry(client discoveryregistry.SvcDiscoveryRegistry) {
|
|
ws.MessageHandler = NewGrpcHandler(ws.validate, client)
|
|
}
|
|
func (ws *WsServer) SetCacheHandler(cache cache.MsgModel) {
|
|
ws.cache = cache
|
|
}
|
|
|
|
func (ws *WsServer) UnRegister(c *Client) {
|
|
ws.unregisterChan <- c
|
|
}
|
|
|
|
func (ws *WsServer) Validate(s interface{}) error {
|
|
return nil
|
|
}
|
|
|
|
func (ws *WsServer) GetUserAllCons(userID string) ([]*Client, bool) {
|
|
return ws.clients.GetAll(userID)
|
|
}
|
|
|
|
func (ws *WsServer) GetUserPlatformCons(userID string, platform int) ([]*Client, bool, bool) {
|
|
return ws.clients.Get(userID, platform)
|
|
}
|
|
|
|
func NewWsServer(opts ...Option) (*WsServer, error) {
|
|
var config configs
|
|
for _, o := range opts {
|
|
o(&config)
|
|
}
|
|
if config.port < 1024 {
|
|
return nil, errors.New("port not allow to listen")
|
|
|
|
}
|
|
v := validator.New()
|
|
return &WsServer{
|
|
port: config.port,
|
|
wsMaxConnNum: config.maxConnNum,
|
|
handshakeTimeout: config.handshakeTimeout,
|
|
clientPool: sync.Pool{
|
|
New: func() interface{} {
|
|
return new(Client)
|
|
},
|
|
},
|
|
registerChan: make(chan *Client, 1000),
|
|
unregisterChan: make(chan *Client, 1000),
|
|
kickHandlerChan: make(chan *kickHandler, 1000),
|
|
validate: v,
|
|
clients: newUserMap(),
|
|
Compressor: NewGzipCompressor(),
|
|
Encoder: NewGobEncoder(),
|
|
}, nil
|
|
}
|
|
func (ws *WsServer) Run() error {
|
|
var client *Client
|
|
go func() {
|
|
for {
|
|
select {
|
|
case client = <-ws.registerChan:
|
|
ws.registerClient(client)
|
|
case client = <-ws.unregisterChan:
|
|
ws.unregisterClient(client)
|
|
case onlineInfo := <-ws.kickHandlerChan:
|
|
ws.multiTerminalLoginChecker(onlineInfo)
|
|
}
|
|
}
|
|
}()
|
|
http.HandleFunc("/", ws.wsHandler)
|
|
// http.HandleFunc("/metrics", func(w http.ResponseWriter, r *http.Request) {})
|
|
return http.ListenAndServe(":"+utils.IntToString(ws.port), nil) //Start listening
|
|
}
|
|
|
|
func (ws *WsServer) registerClient(client *Client) {
|
|
var (
|
|
userOK bool
|
|
clientOK bool
|
|
oldClients []*Client
|
|
)
|
|
oldClients, userOK, clientOK = ws.clients.Get(client.UserID, client.PlatformID)
|
|
if !userOK {
|
|
ws.clients.Set(client.UserID, client)
|
|
log.ZDebug(client.ctx, "user not exist", "userID", client.UserID, "platformID", client.PlatformID)
|
|
atomic.AddInt64(&ws.onlineUserNum, 1)
|
|
atomic.AddInt64(&ws.onlineUserConnNum, 1)
|
|
|
|
} else {
|
|
i := &kickHandler{
|
|
clientOK: clientOK,
|
|
oldClients: oldClients,
|
|
newClient: client,
|
|
}
|
|
ws.kickHandlerChan <- i
|
|
log.ZDebug(client.ctx, "user exist", "userID", client.UserID, "platformID", client.PlatformID)
|
|
if clientOK {
|
|
ws.clients.Set(client.UserID, client)
|
|
//已经有同平台的连接存在
|
|
log.ZInfo(client.ctx, "repeat login", "userID", client.UserID, "platformID", client.PlatformID, "old remote addr", getRemoteAdders(oldClients))
|
|
atomic.AddInt64(&ws.onlineUserConnNum, 1)
|
|
} else {
|
|
ws.clients.Set(client.UserID, client)
|
|
|
|
atomic.AddInt64(&ws.onlineUserConnNum, 1)
|
|
}
|
|
}
|
|
log.ZInfo(
|
|
client.ctx,
|
|
"user online",
|
|
"online user Num",
|
|
ws.onlineUserNum,
|
|
"online user conn Num",
|
|
ws.onlineUserConnNum,
|
|
)
|
|
}
|
|
func getRemoteAdders(client []*Client) string {
|
|
var ret string
|
|
for i, c := range client {
|
|
if i == 0 {
|
|
ret = c.ctx.GetRemoteAddr()
|
|
} else {
|
|
ret += "@" + c.ctx.GetRemoteAddr()
|
|
}
|
|
}
|
|
return ret
|
|
}
|
|
|
|
func (ws *WsServer) multiTerminalLoginChecker(info *kickHandler) {
|
|
switch config.Config.MultiLoginPolicy {
|
|
case constant.DefalutNotKick:
|
|
case constant.PCAndOther:
|
|
if constant.PlatformIDToClass(info.newClient.PlatformID) == constant.TerminalPC {
|
|
return
|
|
}
|
|
fallthrough
|
|
case constant.AllLoginButSameTermKick:
|
|
if info.clientOK {
|
|
ws.clients.deleteClients(info.newClient.UserID, info.oldClients)
|
|
for _, c := range info.oldClients {
|
|
err := c.KickOnlineMessage()
|
|
if err != nil {
|
|
log.ZWarn(c.ctx, "KickOnlineMessage", err)
|
|
}
|
|
}
|
|
m, err := ws.cache.GetTokensWithoutError(
|
|
info.newClient.ctx,
|
|
info.newClient.UserID,
|
|
info.newClient.PlatformID,
|
|
)
|
|
if err != nil && err != redis.Nil {
|
|
log.ZWarn(
|
|
info.newClient.ctx,
|
|
"get token from redis err",
|
|
err,
|
|
"userID",
|
|
info.newClient.UserID,
|
|
"platformID",
|
|
info.newClient.PlatformID,
|
|
)
|
|
return
|
|
}
|
|
if m == nil {
|
|
log.ZWarn(
|
|
info.newClient.ctx,
|
|
"m is nil",
|
|
errors.New("m is nil"),
|
|
"userID",
|
|
info.newClient.UserID,
|
|
"platformID",
|
|
info.newClient.PlatformID,
|
|
)
|
|
return
|
|
}
|
|
log.ZDebug(
|
|
info.newClient.ctx,
|
|
"get token from redis",
|
|
"userID",
|
|
info.newClient.UserID,
|
|
"platformID",
|
|
info.newClient.PlatformID,
|
|
"tokenMap",
|
|
m,
|
|
)
|
|
|
|
for k := range m {
|
|
if k != info.newClient.ctx.GetToken() {
|
|
m[k] = constant.KickedToken
|
|
}
|
|
}
|
|
log.ZDebug(info.newClient.ctx, "set token map is ", "token map", m, "userID", info.newClient.UserID)
|
|
err = ws.cache.SetTokenMapByUidPid(info.newClient.ctx, info.newClient.UserID, info.newClient.PlatformID, m)
|
|
if err != nil {
|
|
log.ZWarn(
|
|
info.newClient.ctx,
|
|
"SetTokenMapByUidPid err",
|
|
err,
|
|
"userID",
|
|
info.newClient.UserID,
|
|
"platformID",
|
|
info.newClient.PlatformID,
|
|
)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
func (ws *WsServer) unregisterClient(client *Client) {
|
|
defer ws.clientPool.Put(client)
|
|
isDeleteUser := ws.clients.delete(client.UserID, client.ctx.GetRemoteAddr())
|
|
if isDeleteUser {
|
|
atomic.AddInt64(&ws.onlineUserNum, -1)
|
|
}
|
|
atomic.AddInt64(&ws.onlineUserConnNum, -1)
|
|
log.ZInfo(
|
|
client.ctx,
|
|
"user offline",
|
|
"close reason",
|
|
client.closedErr,
|
|
"online user Num",
|
|
ws.onlineUserNum,
|
|
"online user conn Num",
|
|
ws.onlineUserConnNum,
|
|
)
|
|
}
|
|
|
|
func (ws *WsServer) wsHandler(w http.ResponseWriter, r *http.Request) {
|
|
connContext := newContext(w, r)
|
|
if ws.onlineUserConnNum >= ws.wsMaxConnNum {
|
|
httpError(connContext, errs.ErrConnOverMaxNumLimit)
|
|
return
|
|
}
|
|
var (
|
|
token string
|
|
userID string
|
|
platformIDStr string
|
|
exists bool
|
|
compression bool
|
|
)
|
|
|
|
token, exists = connContext.Query(Token)
|
|
if !exists {
|
|
httpError(connContext, errs.ErrConnArgsErr)
|
|
return
|
|
}
|
|
userID, exists = connContext.Query(WsUserID)
|
|
if !exists {
|
|
httpError(connContext, errs.ErrConnArgsErr)
|
|
return
|
|
}
|
|
platformIDStr, exists = connContext.Query(PlatformID)
|
|
if !exists {
|
|
httpError(connContext, errs.ErrConnArgsErr)
|
|
return
|
|
}
|
|
platformID, err := strconv.Atoi(platformIDStr)
|
|
if err != nil {
|
|
httpError(connContext, errs.ErrConnArgsErr)
|
|
return
|
|
}
|
|
if err := tokenverify.WsVerifyToken(token, userID, platformID); err != nil {
|
|
httpError(connContext, err)
|
|
return
|
|
}
|
|
m, err := ws.cache.GetTokensWithoutError(context.Background(), userID, platformID)
|
|
if err != nil {
|
|
httpError(connContext, err)
|
|
return
|
|
}
|
|
if v, ok := m[token]; ok {
|
|
switch v {
|
|
case constant.NormalToken:
|
|
case constant.KickedToken:
|
|
httpError(connContext, errs.ErrTokenKicked.Wrap())
|
|
return
|
|
default:
|
|
httpError(connContext, errs.ErrTokenUnknown.Wrap())
|
|
return
|
|
}
|
|
} else {
|
|
httpError(connContext, errs.ErrTokenNotExist.Wrap())
|
|
return
|
|
}
|
|
wsLongConn := newGWebSocket(WebSocket, ws.handshakeTimeout)
|
|
err = wsLongConn.GenerateLongConn(w, r)
|
|
if err != nil {
|
|
httpError(connContext, err)
|
|
return
|
|
}
|
|
compressProtoc, exists := connContext.Query(Compression)
|
|
if exists {
|
|
if compressProtoc == GzipCompressionProtocol {
|
|
compression = true
|
|
}
|
|
}
|
|
compressProtoc, exists = connContext.GetHeader(Compression)
|
|
if exists {
|
|
if compressProtoc == GzipCompressionProtocol {
|
|
compression = true
|
|
}
|
|
}
|
|
client := ws.clientPool.Get().(*Client)
|
|
client.ResetClient(connContext, wsLongConn, connContext.GetBackground(), compression, ws, token)
|
|
ws.registerChan <- client
|
|
go client.readMessage()
|
|
}
|