Files
EdgeNode/internal/iplibrary/updater.go
2022-01-12 20:31:04 +08:00

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package iplibrary
import (
"fmt"
"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
"github.com/TeaOSLab/EdgeNode/internal/errors"
"github.com/TeaOSLab/EdgeNode/internal/events"
"github.com/TeaOSLab/EdgeNode/internal/goman"
"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
"github.com/TeaOSLab/EdgeNode/internal/rpc"
"github.com/iwind/TeaGo/Tea"
"os"
"time"
)
var SharedUpdater = NewUpdater()
func init() {
events.On(events.EventStart, func() {
goman.New(func() {
SharedUpdater.Start()
})
})
events.On(events.EventQuit, func() {
SharedUpdater.Stop()
})
}
// Updater IP库更新程序
type Updater struct {
ticker *time.Ticker
}
// NewUpdater 获取新对象
func NewUpdater() *Updater {
return &Updater{}
}
// Start 开始更新
func (this *Updater) Start() {
// 这里不需要太频繁检查更新因为通常不需要更新IP库
this.ticker = time.NewTicker(1 * time.Hour)
for range this.ticker.C {
err := this.loop()
if err != nil {
remotelogs.ErrorObject("IP_LIBRARY", err)
}
}
}
func (this *Updater) Stop() {
if this.ticker != nil {
this.ticker.Stop()
}
}
// 单次任务
func (this *Updater) loop() error {
nodeConfig, err := nodeconfigs.SharedNodeConfig()
if err != nil {
return err
}
if nodeConfig.GlobalConfig == nil {
return nil
}
code := nodeConfig.GlobalConfig.IPLibrary.Code
if len(code) == 0 {
code = serverconfigs.DefaultIPLibraryType
}
rpcClient, err := rpc.SharedRPC()
if err != nil {
return err
}
libraryResp, err := rpcClient.IPLibraryRPC().FindLatestIPLibraryWithType(rpcClient.Context(), &pb.FindLatestIPLibraryWithTypeRequest{Type: code})
if err != nil {
return err
}
lib := libraryResp.IpLibrary
if lib == nil || lib.File == nil {
return nil
}
typeInfo := serverconfigs.FindIPLibraryWithType(code)
if typeInfo == nil {
return errors.New("invalid ip library code '" + code + "'")
}
path := Tea.Root + "/resources/ipdata/" + code + "/" + code + "." + fmt.Sprintf("%d", lib.CreatedAt) + typeInfo.GetString("ext")
// 是否已经存在
_, err = os.Stat(path)
if err == nil {
return nil
}
// 开始下载
fileChunkIdsResp, err := rpcClient.FileChunkRPC().FindAllFileChunkIds(rpcClient.Context(), &pb.FindAllFileChunkIdsRequest{FileId: lib.File.Id})
if err != nil {
return err
}
chunkIds := fileChunkIdsResp.FileChunkIds
if len(chunkIds) == 0 {
return nil
}
isOk := false
fp, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY, 0666)
if err != nil {
return err
}
defer func() {
// 如果保存不成功就直接删除
if !isOk {
_ = fp.Close()
_ = os.Remove(path)
}
}()
for _, chunkId := range chunkIds {
chunkResp, err := rpcClient.FileChunkRPC().DownloadFileChunk(rpcClient.Context(), &pb.DownloadFileChunkRequest{FileChunkId: chunkId})
if err != nil {
return err
}
chunk := chunkResp.FileChunk
if chunk == nil {
continue
}
_, err = fp.Write(chunk.Data)
if err != nil {
return err
}
}
err = fp.Close()
if err != nil {
return err
}
// 重新加载
library, err := SharedManager.Load()
if err != nil {
return err
}
SharedLibrary = library
isOk = true
return nil
}