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package proxy
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"strings"
"time"
"cocogo/pkg/common"
"cocogo/pkg/config"
"cocogo/pkg/logger"
"cocogo/pkg/model"
)
func NewCommandRecorder(sid string) (recorder *CommandRecorder) {
recorder = &CommandRecorder{sessionID: sid}
recorder.initial()
return recorder
}
func NewReplyRecord(sid string) (recorder *ReplyRecorder) {
recorder = &ReplyRecorder{sessionID: sid}
recorder.initial()
return recorder
}
type CommandRecorder struct {
sessionID string
storage CommandStorage
queue chan *model.Command
closed chan struct{}
}
func (c *CommandRecorder) initial() {
c.queue = make(chan *model.Command, 10)
c.storage = NewCommandStorage()
c.closed = make(chan struct{})
//c.storage, _ = NewFileCommandStorage("/tmp/abc.log")
go c.record()
}
func (c *CommandRecorder) Record(command *model.Command) {
c.queue <- command
}
func (c *CommandRecorder) End() {
select {
case <-c.closed:
return
default:
}
close(c.closed)
}
func (c *CommandRecorder) record() {
cmdList := make([]*model.Command, 0)
maxRetry := 0
for {
select {
case <-c.closed:
if len(cmdList) == 0 {
return
}
case p, ok := <-c.queue:
if !ok {
logger.Debug("Session command recorder close: ", c.sessionID)
return
}
cmdList = append(cmdList, p)
if len(cmdList) < 5 {
continue
}
case <-time.After(time.Second * 5):
if len(cmdList) == 0 {
continue
}
}
err := c.storage.BulkSave(cmdList)
if err == nil {
cmdList = cmdList[:0]
continue
}
if maxRetry > 5 {
cmdList = cmdList[1:]
}
maxRetry++
}
}
type ReplyRecorder struct {
sessionID string
absFilePath string
AbsGzFilePath string
Target string
file *os.File
timeStartNano int64
storage ReplayStorage
backOffStorage ReplayStorage
}
func (r *ReplyRecorder) initial() {
r.storage = NewReplayStorage()
r.backOffStorage = defaultReplayStorage
r.prepare()
}
func (r *ReplyRecorder) Record(b []byte) {
if len(b) > 0 {
delta := float64(time.Now().UnixNano()-r.timeStartNano) / 1000 / 1000 / 1000
data, _ := json.Marshal(string(b))
_, _ = r.file.WriteString(fmt.Sprintf(`"%.3f":%s,`, delta, data))
}
}
func (r *ReplyRecorder) prepare() {
sessionId := r.sessionID
rootPath := config.GetConf().RootPath
today := time.Now().UTC().Format("2006-01-02")
gzFileName := sessionId + ".replay.gz"
replayDir := filepath.Join(rootPath, "data", "replays", today)
r.absFilePath = filepath.Join(replayDir, sessionId)
r.AbsGzFilePath = filepath.Join(replayDir, gzFileName)
r.Target = strings.Join([]string{today, gzFileName}, "/")
r.timeStartNano = time.Now().UnixNano()
err := common.EnsureDirExist(replayDir)
if err != nil {
logger.Errorf("Create dir %s error: %s\n", replayDir, err)
return
}
logger.Debug("Replay file path: ", r.absFilePath)
r.file, err = os.Create(r.absFilePath)
if err != nil {
logger.Errorf("Create file %s error: %s\n", r.absFilePath, err)
}
_, _ = r.file.Write([]byte("{"))
}
func (r *ReplyRecorder) End() {
_, _ = r.file.WriteString(fmt.Sprintf(`"%.3f":%s}`, 0.0, ""))
_ = r.file.Close()
go r.uploadReplay()
}
func (r *ReplyRecorder) uploadReplay() {
if !common.FileExists(r.absFilePath) {
logger.Debug("Replay file not found, passed: ", r.absFilePath)
return
}
if stat, err := os.Stat(r.absFilePath); err == nil && stat.Size() == 0 {
logger.Debug("Replay file is empty, removed: ", r.absFilePath)
_ = os.Remove(r.absFilePath)
return
}
if !common.FileExists(r.AbsGzFilePath) {
logger.Debug("Compress replay file: ", r.absFilePath)
_ = common.GzipCompressFile(r.absFilePath, r.AbsGzFilePath)
_ = os.Remove(r.absFilePath)
}
r.UploadGzipFile(3)
}
func (r *ReplyRecorder) UploadGzipFile(maxRetry int) {
for i := 0; i <= maxRetry; i++ {
logger.Debug("Upload replay file: ", r.AbsGzFilePath)
err := r.storage.Upload(r.AbsGzFilePath, r.Target)
if err == nil {
_ = os.Remove(r.AbsGzFilePath)
break
}
// 如果还是失败，使用备用storage再传一次
if i == maxRetry {
if r.storage == r.backOffStorage {
break
}
logger.Errorf("Using back off storage retry upload")
r.storage = r.backOffStorage
r.UploadGzipFile(3)
break
}
}
}