forked from eatmoreapple/openwechat
/
stroage.go
122 lines (108 loc) · 2.63 KB
/
stroage.go
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package openwechat
import (
"io"
"os"
"sync"
"time"
)
// Storage 身份信息, 维持整个登陆的Session会话
type Storage struct {
LoginInfo *LoginInfo
Request *BaseRequest
Response *WebInitResponse
}
type HotReloadStorageItem struct {
Jar *Jar
BaseRequest *BaseRequest
LoginInfo *LoginInfo
WechatDomain WechatDomain
SyncKey *SyncKey
UUID string
}
// HotReloadStorage 热登陆存储接口
type HotReloadStorage io.ReadWriter
// fileHotReloadStorage 实现HotReloadStorage接口
// 以文件的形式存储
type fileHotReloadStorage struct {
filename string
file *os.File
lock sync.Mutex
}
func (j *fileHotReloadStorage) Read(p []byte) (n int, err error) {
j.lock.Lock()
defer j.lock.Unlock()
if j.file == nil {
j.file, err = os.OpenFile(j.filename, os.O_RDWR, 0600)
if os.IsNotExist(err) {
return 0, ErrInvalidStorage
}
if err != nil {
return 0, err
}
}
return j.file.Read(p)
}
func (j *fileHotReloadStorage) Write(p []byte) (n int, err error) {
j.lock.Lock()
defer j.lock.Unlock()
if j.file == nil {
j.file, err = os.Create(j.filename)
if err != nil {
return 0, err
}
}
// reset offset and truncate file
if _, err = j.file.Seek(0, io.SeekStart); err != nil {
return
}
if err = j.file.Truncate(0); err != nil {
return
}
// json decode only write once
return j.file.Write(p)
}
func (j *fileHotReloadStorage) Close() error {
j.lock.Lock()
defer j.lock.Unlock()
if j.file == nil {
return nil
}
return j.file.Close()
}
// Deprecated: use NewFileHotReloadStorage instead
// 不再单纯以json的格式存储,支持了用户自定义序列化方式
func NewJsonFileHotReloadStorage(filename string) io.ReadWriteCloser {
return NewFileHotReloadStorage(filename)
}
// NewFileHotReloadStorage implements HotReloadStorage
func NewFileHotReloadStorage(filename string) io.ReadWriteCloser {
return &fileHotReloadStorage{filename: filename}
}
var _ HotReloadStorage = (*fileHotReloadStorage)(nil)
type HotReloadStorageSyncer struct {
duration time.Duration
bot *Bot
}
// Sync 定时同步数据到登陆存储中
func (h *HotReloadStorageSyncer) Sync() error {
if h.duration <= 0 {
return nil
}
// 定时器
ticker := time.NewTicker(h.duration)
for {
select {
case <-ticker.C:
// 每隔一段时间, 将数据同步到storage中
if err := h.bot.DumpHotReloadStorage(); err != nil {
return err
}
case <-h.bot.Context().Done():
// 当Bot关闭的时候, 退出循环
return nil
}
}
}
func NewHotReloadStorageSyncer(bot *Bot, duration time.Duration) *HotReloadStorageSyncer {
return &HotReloadStorageSyncer{duration: duration, bot: bot}
}