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bridge.go
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bridge.go
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// Copyright (C) 2020 Finogeeks Co., Ltd
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License, version 3,
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bridge
import (
"context"
"encoding/gob"
"encoding/json"
"errors"
"sync"
"time"
"github.com/finogeeks/ligase/common"
"github.com/finogeeks/ligase/common/config"
"github.com/finogeeks/ligase/model/service/roomserverapi"
"github.com/finogeeks/ligase/core"
"github.com/finogeeks/ligase/plugins/message/external"
"github.com/finogeeks/ligase/skunkworks/gomatrixserverlib"
"github.com/finogeeks/ligase/skunkworks/log"
"github.com/finogeeks/ligase/skunkworks/util/id"
// "github.com/finogeeks/ligase/skunkworks/log"
"github.com/finogeeks/ligase/model"
wp "github.com/finogeeks/ligase/skunkworks/util/workerpool"
pool "github.com/jolestar/go-commons-pool"
)
func init() {
// must register the encode type first
gob.Register(model.TxnReq{})
gob.Register(map[string]string{})
// gob.Register(api.GetAliasRoomIDResponse{})
gob.Register(&roomserverapi.GetAliasRoomIDResponse{})
gob.Register(&external.GetProfileResponse{})
gob.Register(&external.GetAvatarURLResponse{})
gob.Register(&external.GetDisplayNameResponse{})
gob.Register(&gomatrixserverlib.FederationRequest{})
gob.Register(&gomatrixserverlib.Transaction{})
gob.Register(&roomserverapi.FederationEvent{})
gob.Register(&roomserverapi.RawEvent{})
gob.Register(&external.GetFedBackFillRequest{})
gob.Register(&roomserverapi.QueryBackFillEventsResponse{})
}
var bridge Bridge
func newReplyChan(context.Context) (interface{}, error) {
return make(chan *model.GobMessage), nil
}
type Bridge struct {
w *wp.WorkerPool
replyChan sync.Map
objPool *pool.ObjectPool
ctx context.Context
cfg *config.Dendrite
}
// handle request and response
func (b *Bridge) processRequest(gobMsg *model.GobMessage) error {
prod := b.cfg.Kafka.Producer.FedBridgeOutHs
if gobMsg.Cmd >= model.CMD_FED {
prod = b.cfg.Kafka.Producer.FedBridgeOut
}
// subject := topic //fmt.Sprintf("%s.%d", topic, id.GetNodeId())
// log.Infof("connector pub addr:%s subject: %s data:%v", nc.addrs, subject, gobMsg)
// return nc.econn.Publish(subject, gobMsg)
keys := gobMsg.Key
if gobMsg.Key == nil {
keys = []byte{}
}
return common.GetTransportMultiplexer().SendAndRecvWithRetry(
prod.Underlying,
prod.Name,
&core.TransportPubMsg{
//Format: core.FORMAT_GOB,
Keys: keys,
Obj: gobMsg,
})
}
func (b *Bridge) processReply(gobMsg *model.GobMessage) error {
ch, ok := b.replyChan.Load(gobMsg.MsgSeq)
if !ok {
return errors.New("Bridge reply MsgSeq not found in map. " + gobMsg.MsgSeq)
}
ch.(chan *model.GobMessage) <- gobMsg
return nil
}
// 推送等单向消息
func (b *Bridge) processInstantMessage(gobMsg *model.GobMessage) error {
return nil
}
func (b *Bridge) process(payload model.Payload) error {
msg := payload.(model.GobMessage)
// fmt.Printf("process, msg type: %d, msg: %v\n", msg.MsgType, msg)
switch msg.MsgType {
case model.REQUEST:
b.processRequest(&msg)
case model.REPLY:
b.processReply(&msg)
case model.MESSAGE:
b.processInstantMessage(&msg)
}
return nil
}
func (b *Bridge) SetupBridge(cfg *config.Dendrite) {
b.cfg = cfg
factory := pool.NewPooledObjectFactorySimple(newReplyChan)
b.ctx = context.Background()
b.objPool = pool.NewObjectPoolWithDefaultConfig(b.ctx, factory)
b.w = wp.NewWorkerPool(10)
// defer w.Stop()
b.w.SetHandler(b.process).Run()
val, ok := common.GetTransportMultiplexer().GetChannel(
b.cfg.Kafka.Consumer.FedBridgeOutRes.Underlying,
b.cfg.Kafka.Consumer.FedBridgeOutRes.Name,
)
if ok {
channel := val.(core.IChannel)
channel.SetHandler(b)
channel.Start()
}
}
func (b *Bridge) OnMessage(ctx context.Context, topic string, partition int32, data []byte, rawMsg interface{}) {
//dec := gob.NewDecoder(bytes.NewReader(data))
msg := &model.GobMessage{}
//err := dec.Decode(msg)
err := json.Unmarshal(data, msg)
if err != nil {
log.Errorf("decode error: %s", err.Error())
return
}
log.Infof("fed bridge response recv msg, MsgType:%d , MsgSeq:%s, NodeId:%d cmd:%d Body:%s", msg.MsgType, msg.MsgSeq, msg.NodeId, msg.Cmd, msg.Body)
// msg := payload.(*model.GobMessage)
msg.MsgType = model.REPLY
b.w.FeedPayload(*msg)
}
func (b *Bridge) SendAndRecv(msg model.GobMessage, timeout int) (reply *model.GobMessage, err error) {
// send msg
Send(msg)
// recv msg
var obj interface{}
if replyCh, ok := b.replyChan.Load(msg.MsgSeq); !ok {
obj, err = b.objPool.BorrowObject(b.ctx)
if err == nil && obj != nil {
actual, loaded := b.replyChan.LoadOrStore(msg.MsgSeq, obj)
if loaded {
log.Errorf("Bridge reply channel exists, %s", msg.MsgSeq)
b.objPool.ReturnObject(b.ctx, obj)
obj = actual
}
} else {
return nil, errors.New("server memory alloc failed")
}
} else {
log.Errorf("Bridge reply channel exists, %s", msg.MsgSeq)
obj = replyCh
}
ch := obj.(chan *model.GobMessage)
select {
case <-time.After(time.Millisecond * time.Duration(timeout)):
err = model.ErrRequestTimedOut
case m := <-ch:
reply = m
}
b.replyChan.Delete(msg.MsgSeq)
b.objPool.ReturnObject(b.ctx, obj)
return
}
func (b *Bridge) Send(msg model.GobMessage) {
msg.MsgType = model.REQUEST
msg.NodeId = id.GetNodeId()
b.w.FeedPayload(msg)
}
func SetupBridge(cfg *config.Dendrite) {
bridge.SetupBridge(cfg)
}
func SendAndRecv(msg model.GobMessage, timeout int) (reply *model.GobMessage, err error) {
return bridge.SendAndRecv(msg, timeout)
}
func Send(msg model.GobMessage) {
bridge.Send(msg)
}