diff --git a/src/common/constant/constant.go b/src/common/constant/constant.go
new file mode 100644
index 000000000..9a90b96d6
--- /dev/null
+++ b/src/common/constant/constant.go
@@ -0,0 +1,46 @@
+package constant
+
+const (
+
+	//group admin
+	GroupAdmin = 1
+	//feiend related
+	BlackListFlag = 1
+	NotFriendFlag = 0
+	FriendFlag    = 1
+
+	//Websocket Protocol
+	WSGetNewestSeq = 1001
+	WSPullMsg      = 1002
+	WSSendMsg      = 1003
+	WSPushMsg      = 2001
+
+	///ContentType
+	//UserRelated
+	Text    = 101
+	Picture = 102
+	Voice   = 103
+	Video   = 104
+	File    = 105
+
+	SyncSenderMsg = 108
+	//SysRelated
+	AddFriendTip      = 201
+	AgreeAddFriendTip = 202
+	KickOnlineTip     = 203
+
+	//MsgFrom
+	UserMsgType = 100
+	SysMsgType  = 200
+
+	//SessionType
+	SingleChatType = 1
+	GroupChatType  = 2
+)
+
+var ContentType2PushContent = map[int64]string{
+	Picture: "[picture]",
+	Voice:   "[voice]",
+	Video:   "[video]",
+	File:    "[file]",
+}
diff --git a/src/common/kafka/consumer.go b/src/common/kafka/consumer.go
new file mode 100644
index 000000000..eed6ef142
--- /dev/null
+++ b/src/common/kafka/consumer.go
@@ -0,0 +1,36 @@
+package kafka
+
+import (
+	"github.com/Shopify/sarama"
+	"sync"
+)
+
+type Consumer struct {
+	addr          []string
+	WG            sync.WaitGroup
+	Topic         string
+	PartitionList []int32
+	Consumer      sarama.Consumer
+}
+
+func NewKafkaConsumer(addr []string, topic string) *Consumer {
+	p := Consumer{}
+	p.Topic = topic
+	p.addr = addr
+
+	consumer, err := sarama.NewConsumer(p.addr, nil)
+	if err != nil {
+		panic(err)
+		return nil
+	}
+	p.Consumer = consumer
+
+	partitionList, err := consumer.Partitions(p.Topic)
+	if err != nil {
+		panic(err)
+		return nil
+	}
+	p.PartitionList = partitionList
+
+	return &p
+}
diff --git a/src/common/kafka/consumer_group.go b/src/common/kafka/consumer_group.go
new file mode 100644
index 000000000..4c4af5033
--- /dev/null
+++ b/src/common/kafka/consumer_group.go
@@ -0,0 +1,53 @@
+/*
+** description("").
+** copyright('tuoyun,www.tuoyun.net').
+** author("fg,Gordon@tuoyun.net").
+** time(2021/5/11 9:36).
+ */
+package kafka
+
+import (
+	"context"
+	"github.com/Shopify/sarama"
+)
+
+type MConsumerGroup struct {
+	sarama.ConsumerGroup
+	groupID string
+	topics  []string
+}
+
+type MConsumerGroupConfig struct {
+	KafkaVersion   sarama.KafkaVersion
+	OffsetsInitial int64
+	IsReturnErr    bool
+}
+
+func NewMConsumerGroup(consumerConfig *MConsumerGroupConfig, topics, addr []string, groupID string) *MConsumerGroup {
+	config := sarama.NewConfig()
+	config.Version = consumerConfig.KafkaVersion
+	config.Consumer.Offsets.Initial = consumerConfig.OffsetsInitial
+	config.Consumer.Return.Errors = consumerConfig.IsReturnErr
+	client, err := sarama.NewClient(addr, config)
+	if err != nil {
+		panic(err)
+	}
+	consumerGroup, err := sarama.NewConsumerGroupFromClient(groupID, client)
+	if err != nil {
+		panic(err)
+	}
+	return &MConsumerGroup{
+		consumerGroup,
+		groupID,
+		topics,
+	}
+}
+func (mc *MConsumerGroup) RegisterHandleAndConsumer(handler sarama.ConsumerGroupHandler) {
+	ctx := context.Background()
+	for {
+		err := mc.ConsumerGroup.Consume(ctx, mc.topics, handler)
+		if err != nil {
+			panic(err)
+		}
+	}
+}
diff --git a/src/common/kafka/producer.go b/src/common/kafka/producer.go
new file mode 100644
index 000000000..d2071eab6
--- /dev/null
+++ b/src/common/kafka/producer.go
@@ -0,0 +1,49 @@
+package kafka
+
+import (
+	log2 "Open_IM/src/common/log"
+	"github.com/Shopify/sarama"
+	"github.com/golang/protobuf/proto"
+)
+
+type Producer struct {
+	topic    string
+	addr     []string
+	config   *sarama.Config
+	producer sarama.SyncProducer
+}
+
+func NewKafkaProducer(addr []string, topic string) *Producer {
+	p := Producer{}
+	p.config = sarama.NewConfig()                             //Instantiate a sarama Config
+	p.config.Producer.Return.Successes = true                 //Whether to enable the successes channel to be notified after the message is sent successfully
+	p.config.Producer.RequiredAcks = sarama.WaitForAll        //Set producer Message Reply level 0 1 all
+	p.config.Producer.Partitioner = sarama.NewHashPartitioner //Set the hash-key automatic hash partition. When sending a message, you must specify the key value of the message. If there is no key, the partition will be selected randomly
+
+	p.addr = addr
+	p.topic = topic
+
+	producer, err := sarama.NewSyncProducer(p.addr, p.config) //初始化客户端
+	if err != nil {
+		panic(err)
+		return nil
+	}
+	p.producer = producer
+	return &p
+}
+
+func (p *Producer) SendMessage(m proto.Message, key ...string) (int32, int64, error) {
+	kMsg := &sarama.ProducerMessage{}
+	kMsg.Topic = p.topic
+	if len(key) == 1 {
+		kMsg.Key = sarama.StringEncoder(key[0])
+	}
+	bMsg, err := proto.Marshal(m)
+	if err != nil {
+		log2.Error("", "", "proto marshal err = %s", err.Error())
+		return -1, -1, err
+	}
+	kMsg.Value = sarama.ByteEncoder(bMsg)
+
+	return p.producer.SendMessage(kMsg)
+}
diff --git a/src/common/log/es_hk.go b/src/common/log/es_hk.go
new file mode 100644
index 000000000..e52d988fd
--- /dev/null
+++ b/src/common/log/es_hk.go
@@ -0,0 +1,108 @@
+/*
+** description("Hook to send logs to elasticsearch").
+** copyright('tuoyun,www.tuoyun.net').
+** author("fg,Gordon@tuoyun.net").
+** time(2021/3/26 17:05).
+ */
+package log
+
+import (
+	"Open_IM/src/common/config"
+	"context"
+	"fmt"
+	elasticV7 "github.com/olivere/elastic/v7"
+	"github.com/sirupsen/logrus"
+	"log"
+	"os"
+	"strings"
+	"time"
+)
+
+//esHook custom es hook
+type esHook struct {
+	moduleName string
+	client     *elasticV7.Client
+}
+
+//newEsHook initialization
+func newEsHook(moduleName string) *esHook {
+	//https://github.com/sohlich/elogrus
+	//client, err := elastic.NewClient(elastic.SetURL("http://localhost:9200"))
+	//if err != nil {
+	//	log.Panic(err)
+	//}
+	//hook, err := elogrus.NewAsyncElasticHook(client, "localhost", logrus.DebugLevel, "mylog")
+	//if err != nil {
+	//	log.Panic(err)
+	//}
+	es, err := elasticV7.NewClient(
+		elasticV7.SetURL(config.Config.Log.ElasticSearchAddr...),
+		elasticV7.SetBasicAuth(config.Config.Log.ElasticSearchUser, config.Config.Log.ElasticSearchPassword),
+		elasticV7.SetSniff(false),
+		elasticV7.SetHealthcheckInterval(60*time.Second),
+		elasticV7.SetErrorLog(log.New(os.Stderr, "ES:", log.LstdFlags)),
+	)
+
+	if err != nil {
+		log.Fatal("failed to create Elastic V7 Client: ", err)
+	}
+
+	//info, code, err := es.Ping(logConfig.ElasticSearch.EsAddr[0]).Do(context.Background())
+	//if err != nil {
+	//	panic(err)
+	//}
+	//fmt.Printf("Elasticsearch returned with code %d and version %s\n", code, info.Version.Number)
+	//
+	//esversion, err := es.ElasticsearchVersion(logConfig.ElasticSearch.EsAddr[0])
+	//if err != nil {
+	//	panic(err)
+	//}
+	//fmt.Printf("Elasticsearch version %s\n", esversion)
+	return &esHook{client: es, moduleName: moduleName}
+}
+
+//Fire log hook interface method
+func (hook *esHook) Fire(entry *logrus.Entry) error {
+	doc := newEsLog(entry)
+	go hook.sendEs(doc)
+	return nil
+}
+
+//Levels log hook interface method, the log affected by this hook
+func (hook *esHook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}
+
+//sendEs Asynchronously send logs to es
+func (hook *esHook) sendEs(doc appLogDocModel) {
+	defer func() {
+		if r := recover(); r != nil {
+			fmt.Println("send entry to es failed: ", r)
+		}
+	}()
+	_, err := hook.client.Index().Index(hook.moduleName).Type(doc.indexName()).BodyJson(doc).Do(context.Background())
+	if err != nil {
+		log.Println(err)
+	}
+
+}
+
+//appLogDocModel es model
+type appLogDocModel map[string]interface{}
+
+func newEsLog(e *logrus.Entry) appLogDocModel {
+	ins := make(map[string]interface{})
+	ins["level"] = strings.ToUpper(e.Level.String())
+	ins["time"] = e.Time.Format("2006-01-02 15:04:05")
+	for kk, vv := range e.Data {
+		ins[kk] = vv
+	}
+	ins["tipInfo"] = e.Message
+
+	return ins
+}
+
+// indexName es index name time division
+func (m *appLogDocModel) indexName() string {
+	return time.Now().Format("2006-01-02")
+}
diff --git a/src/common/log/file_line_hk.go b/src/common/log/file_line_hk.go
new file mode 100644
index 000000000..c9633c4b9
--- /dev/null
+++ b/src/common/log/file_line_hk.go
@@ -0,0 +1,60 @@
+/*
+** description("Get the hook of the calling file name and line number").
+** copyright('tuoyun,www.tuoyun.net').
+** author("fg,Gordon@tuoyun.net").
+** time(2021/3/16 11:26).
+ */
+package log
+
+import (
+	"fmt"
+	"github.com/sirupsen/logrus"
+	"runtime"
+	"strings"
+)
+
+type fileHook struct{}
+
+func newFileHook() *fileHook {
+	return &fileHook{}
+}
+
+func (f *fileHook) Levels() []logrus.Level {
+	return logrus.AllLevels
+}
+
+func (f *fileHook) Fire(entry *logrus.Entry) error {
+	entry.Data["FilePath"] = findCaller(5)
+	return nil
+}
+
+func findCaller(skip int) string {
+	file := ""
+	line := 0
+	for i := 0; i < 10; i++ {
+		file, line = getCaller(skip + i)
+		if !strings.HasPrefix(file, "log") {
+			break
+		}
+	}
+	return fmt.Sprintf("%s:%d", file, line)
+}
+
+func getCaller(skip int) (string, int) {
+	_, file, line, ok := runtime.Caller(skip)
+	if !ok {
+		return "", 0
+	}
+
+	n := 0
+	for i := len(file) - 1; i > 0; i-- {
+		if file[i] == '/' {
+			n++
+			if n >= 2 {
+				file = file[i+1:]
+				break
+			}
+		}
+	}
+	return file, line
+}
diff --git a/src/common/log/logrus.go b/src/common/log/logrus.go
new file mode 100644
index 000000000..6ace5f963
--- /dev/null
+++ b/src/common/log/logrus.go
@@ -0,0 +1,193 @@
+package log
+
+import (
+	"Open_IM/src/common/config"
+	"fmt"
+	nested "github.com/antonfisher/nested-logrus-formatter"
+	rotatelogs "github.com/lestrrat-go/file-rotatelogs"
+	"github.com/rifflock/lfshook"
+	"github.com/sirupsen/logrus"
+	"os"
+	"time"
+)
+
+var logger *Logger
+
+type Logger struct {
+	*logrus.Logger
+	Pid int
+}
+
+func init() {
+	logger = loggerInit("")
+
+}
+func NewPrivateLog(moduleName string) {
+	logger = loggerInit(moduleName)
+}
+
+func loggerInit(moduleName string) *Logger {
+	var logger = logrus.New()
+	//All logs will be printed
+	logger.SetLevel(logrus.TraceLevel)
+	//Log Style Setting
+	logger.SetFormatter(&nested.Formatter{
+		TimestampFormat: "2006-01-02 15:04:05",
+		HideKeys:        false,
+		FieldsOrder:     []string{"PID"},
+	})
+	//File name and line number display hook
+	logger.AddHook(newFileHook())
+
+	//Send logs to elasticsearch hook
+	if config.Config.Log.ElasticSearchSwitch == true {
+		logger.AddHook(newEsHook(moduleName))
+	}
+	//Log file segmentation hook
+	hook := NewLfsHook(config.Config.Log.StorageLocation+time.Now().Format("2006-01-02")+".log", 0, 5, moduleName)
+	logger.AddHook(hook)
+	return &Logger{
+		logger,
+		os.Getpid(),
+	}
+}
+func NewLfsHook(logName string, rotationTime time.Duration, maxRemainNum uint, moduleName string) logrus.Hook {
+	var fileNameSuffix string
+	if GetCurrentTimestamp() >= GetCurDayZeroTimestamp() && GetCurrentTimestamp() <= GetCurDayHalfTimestamp() {
+		fileNameSuffix = time.Now().Format("2006-01-02") + ".log"
+	} else {
+		fileNameSuffix = time.Now().Format("2006-01-02") + ".log"
+	}
+	writer, err := rotatelogs.New(
+		logName,
+		rotatelogs.WithRotationCount(maxRemainNum),
+	)
+	if err != nil {
+		panic(err)
+	}
+	writeInfo, err := rotatelogs.New(
+		config.Config.Log.StorageLocation+moduleName+"/info."+fileNameSuffix,
+		rotatelogs.WithRotationTime(time.Duration(60)*time.Second),
+		rotatelogs.WithRotationCount(maxRemainNum),
+	)
+	writeError, err := rotatelogs.New(
+		config.Config.Log.StorageLocation+moduleName+"/error."+fileNameSuffix,
+		rotatelogs.WithRotationTime(time.Minute),
+		rotatelogs.WithRotationCount(maxRemainNum),
+	)
+	writeDebug, err := rotatelogs.New(
+		config.Config.Log.StorageLocation+moduleName+"/debug."+fileNameSuffix,
+		rotatelogs.WithRotationCount(maxRemainNum),
+	)
+	writeWarn, err := rotatelogs.New(
+		config.Config.Log.StorageLocation+moduleName+"/warn."+fileNameSuffix,
+		rotatelogs.WithRotationTime(time.Minute),
+		rotatelogs.WithRotationCount(maxRemainNum),
+	)
+	if err != nil {
+		panic(err)
+	}
+	lfsHook := lfshook.NewHook(lfshook.WriterMap{
+		logrus.DebugLevel: writeDebug,
+		logrus.InfoLevel:  writeInfo,
+		logrus.WarnLevel:  writeWarn,
+		logrus.ErrorLevel: writeError,
+		logrus.FatalLevel: writer,
+		logrus.PanicLevel: writer,
+	}, &nested.Formatter{
+		TimestampFormat: "2006-01-02 15:04:05",
+		HideKeys:        false,
+		FieldsOrder:     []string{"PID"},
+	})
+
+	return lfsHook
+}
+
+func Info(token, OperationID, format string, args ...interface{}) {
+	if token == "" && OperationID == "" {
+		logger.WithFields(logrus.Fields{}).Infof(format, args...)
+	} else {
+		logger.WithFields(logrus.Fields{
+			"token":       token,
+			"OperationID": OperationID,
+		}).Infof(format, args...)
+	}
+}
+
+func Error(token, OperationID, format string, args ...interface{}) {
+	if token == "" && OperationID == "" {
+		logger.WithFields(logrus.Fields{}).Errorf(format, args...)
+	} else {
+		logger.WithFields(logrus.Fields{
+			"token":       token,
+			"OperationID": OperationID,
+		}).Errorf(format, args...)
+	}
+}
+
+func Debug(token, OperationID, format string, args ...interface{}) {
+	if token == "" && OperationID == "" {
+		logger.WithFields(logrus.Fields{}).Debugf(format, args...)
+	} else {
+		logger.WithFields(logrus.Fields{
+			"token":       token,
+			"OperationID": OperationID,
+		}).Debugf(format, args...)
+	}
+}
+
+func Warning(token, OperationID, format string, args ...interface{}) {
+	if token == "" && OperationID == "" {
+		logger.WithFields(logrus.Fields{}).Warningf(format, args...)
+	} else {
+		logger.WithFields(logrus.Fields{
+			"token":       token,
+			"OperationID": OperationID,
+		}).Warningf(format, args...)
+	}
+}
+
+func InfoByArgs(format string, args ...interface{}) {
+	logger.WithFields(logrus.Fields{}).Infof(format, args)
+}
+
+func ErrorByArgs(format string, args ...interface{}) {
+	logger.WithFields(logrus.Fields{}).Errorf(format, args...)
+}
+
+//Print log information in k, v format,
+//kv is best to appear in pairs. tipInfo is the log prompt information for printing,
+//and kv is the key and value for printing.
+func InfoByKv(tipInfo, OperationID string, args ...interface{}) {
+	fields := make(logrus.Fields)
+	argsHandle(OperationID, fields, args)
+	logger.WithFields(fields).Info(tipInfo)
+}
+func ErrorByKv(tipInfo, OperationID string, args ...interface{}) {
+	fields := make(logrus.Fields)
+	argsHandle(OperationID, fields, args)
+	logger.WithFields(fields).Error(tipInfo)
+}
+func DebugByKv(tipInfo, OperationID string, args ...interface{}) {
+	fields := make(logrus.Fields)
+	argsHandle(OperationID, fields, args)
+	logger.WithFields(fields).Debug(tipInfo)
+}
+func WarnByKv(tipInfo, OperationID string, args ...interface{}) {
+	fields := make(logrus.Fields)
+	argsHandle(OperationID, fields, args)
+	logger.WithFields(fields).Warn(tipInfo)
+}
+
+//internal method
+func argsHandle(OperationID string, fields logrus.Fields, args []interface{}) {
+	for i := 0; i < len(args); i += 2 {
+		if i+1 < len(args) {
+			fields[fmt.Sprintf("%v", args[i])] = args[i+1]
+		} else {
+			fields[fmt.Sprintf("%v", args[i])] = ""
+		}
+	}
+	fields["operationID"] = OperationID
+	fields["PID"] = logger.Pid
+}
diff --git a/src/common/log/time_format.go b/src/common/log/time_format.go
new file mode 100644
index 000000000..4ae1c56ef
--- /dev/null
+++ b/src/common/log/time_format.go
@@ -0,0 +1,57 @@
+/*
+** description("").
+** copyright('tuoyun,www.tuoyun.net').
+** author("fg,Gordon@tuoyun.net").
+** time(2021/2/22 11:52).
+ */
+package log
+
+import (
+	"strconv"
+	"time"
+)
+
+const (
+	TimeOffset = 8 * 3600  //8个小时的偏移量
+	HalfOffset = 12 * 3600 //半天的小时偏移量
+)
+
+//获取当前的时间戳
+func GetCurrentTimestamp() int64 {
+	return time.Now().Unix()
+}
+
+//获取当天0点的时间戳
+func GetCurDayZeroTimestamp() int64 {
+	timeStr := time.Now().Format("2006-01-02")
+	t, _ := time.Parse("2006-01-02", timeStr)
+	return t.Unix() - TimeOffset
+}
+
+//获取当天12点的时间戳
+func GetCurDayHalfTimestamp() int64 {
+	return GetCurDayZeroTimestamp() + HalfOffset
+
+}
+
+//获取当天0点格式化时间，格式为"2006-01-02_00-00-00"
+func GetCurDayZeroTimeFormat() string {
+	return time.Unix(GetCurDayZeroTimestamp(), 0).Format("2006-01-02_15-04-05")
+}
+
+//获取当天12点格式化时间，格式为"2006-01-02_12-00-00"
+func GetCurDayHalfTimeFormat() string {
+	return time.Unix(GetCurDayZeroTimestamp()+HalfOffset, 0).Format("2006-01-02_15-04-05")
+}
+func GetTimeStampByFormat(datetime string) string {
+	timeLayout := "2006-01-02 15:04:05"  //转化所需模板
+	loc, _ := time.LoadLocation("Local") //获取时区
+	tmp, _ := time.ParseInLocation(timeLayout, datetime, loc)
+	timestamp := tmp.Unix() //转化为时间戳 类型是int64
+	return strconv.FormatInt(timestamp, 10)
+}
+
+func TimeStringFormatTimeUnix(timeFormat string, timeSrc string) int64 {
+	tm, _ := time.Parse(timeFormat, timeSrc)
+	return tm.Unix()
+}