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conn.go
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conn.go
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package logic
import (
"context"
"encoding/json"
"time"
log "github.com/go-kratos/kratos/pkg/log"
"github.com/google/uuid"
"github.com/ningchengzeng/goim/api/protocol"
"github.com/ningchengzeng/goim/internal/logic/model"
)
// Connect connected a conn.
func (l *Logic) Connect(c context.Context, server, cookie string, token []byte) (mid int64, key, roomID string, accepts []int32, hb int64, err error) {
var params struct {
Mid int64 `json:"mid"`
Key string `json:"key"`
RoomID string `json:"room_id"`
Platform string `json:"platform"`
Accepts []int32 `json:"accepts"`
}
if err = json.Unmarshal(token, ¶ms); err != nil {
log.Error("json.Unmarshal(%s) error(%v)", token, err)
return
}
mid = params.Mid
roomID = params.RoomID
accepts = params.Accepts
hb = int64(l.c.Node.Heartbeat) * int64(l.c.Node.HeartbeatMax)
if key = params.Key; key == "" {
key = uuid.New().String()
}
if err = l.dao.AddMapping(c, mid, key, server); err != nil {
log.Error("l.dao.AddMapping(%d,%s,%s) error(%v)", mid, key, server, err)
}
log.Info("conn connected key:%s server:%s mid:%d token:%s", key, server, mid, token)
return
}
// Disconnect disconnect a conn.
func (l *Logic) Disconnect(c context.Context, mid int64, key, server string) (has bool, err error) {
if has, err = l.dao.DelMapping(c, mid, key, server); err != nil {
log.Error("l.dao.DelMapping(%d,%s) error(%v)", mid, key, server)
return
}
log.Info("conn disconnected key:%s server:%s mid:%d", key, server, mid)
return
}
// Heartbeat heartbeat a conn.
func (l *Logic) Heartbeat(c context.Context, mid int64, key, server string) (err error) {
has, err := l.dao.ExpireMapping(c, mid, key)
if err != nil {
log.Error("l.dao.ExpireMapping(%d,%s,%s) error(%v)", mid, key, server, err)
return
}
if !has {
if err = l.dao.AddMapping(c, mid, key, server); err != nil {
log.Error("l.dao.AddMapping(%d,%s,%s) error(%v)", mid, key, server, err)
return
}
}
log.Info("conn heartbeat key:%s server:%s mid:%d", key, server, mid)
return
}
// RenewOnline renew a server online.
func (l *Logic) RenewOnline(c context.Context, server string, roomCount map[string]int32) (map[string]int32, error) {
online := &model.Online{
Server: server,
RoomCount: roomCount,
Updated: time.Now().Unix(),
}
if err := l.dao.AddServerOnline(context.Background(), server, online); err != nil {
return nil, err
}
return l.roomCount, nil
}
// Receive receive a message.
func (l *Logic) Receive(c context.Context, mid int64, proto *protocol.Proto) (err error) {
log.Info("receive mid:%d message:%+v", mid, proto)
return
}