775 lines
18 KiB
Go
775 lines
18 KiB
Go
package windowsv3
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import (
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"context"
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"encoding/hex"
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"fmt"
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"regexp"
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"sort"
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"strings"
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"time"
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"github.com/fsnotify/fsnotify"
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_ "github.com/mattn/go-sqlite3"
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"github.com/rs/zerolog/log"
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"github.com/sjzar/chatlog/internal/errors"
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"github.com/sjzar/chatlog/internal/model"
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"github.com/sjzar/chatlog/internal/wechatdb/datasource/dbm"
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"github.com/sjzar/chatlog/pkg/util"
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)
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const (
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Message = "message"
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Contact = "contact"
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Image = "image"
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Video = "video"
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File = "file"
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Voice = "voice"
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)
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var Groups = []*dbm.Group{
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{
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Name: Message,
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Pattern: `^MSG([0-9]?[0-9])?\.db$`,
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BlackList: []string{},
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},
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{
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Name: Contact,
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Pattern: `^MicroMsg\.db$`,
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BlackList: []string{},
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},
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{
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Name: Image,
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Pattern: `^HardLinkImage\.db$`,
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BlackList: []string{},
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},
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{
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Name: Video,
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Pattern: `^HardLinkVideo\.db$`,
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BlackList: []string{},
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},
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{
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Name: File,
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Pattern: `^HardLinkFile\.db$`,
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BlackList: []string{},
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},
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{
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Name: Voice,
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Pattern: `^MediaMSG([0-9])?\.db$`,
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BlackList: []string{},
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},
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}
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// MessageDBInfo 保存消息数据库的信息
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type MessageDBInfo struct {
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FilePath string
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StartTime time.Time
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EndTime time.Time
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TalkerMap map[string]int
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}
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// DataSource 实现了 DataSource 接口
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type DataSource struct {
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path string
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dbm *dbm.DBManager
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// 消息数据库信息
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messageInfos []MessageDBInfo
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}
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// New 创建一个新的 WindowsV3DataSource
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func New(path string) (*DataSource, error) {
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ds := &DataSource{
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path: path,
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dbm: dbm.NewDBManager(path),
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messageInfos: make([]MessageDBInfo, 0),
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}
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for _, g := range Groups {
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ds.dbm.AddGroup(g)
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}
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if err := ds.dbm.Start(); err != nil {
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return nil, err
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}
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if err := ds.initMessageDbs(); err != nil {
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return nil, errors.DBInitFailed(err)
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}
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ds.dbm.AddCallback(Message, func(event fsnotify.Event) error {
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if !event.Op.Has(fsnotify.Create) {
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return nil
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}
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if err := ds.initMessageDbs(); err != nil {
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log.Err(err).Msgf("Failed to reinitialize message DBs: %s", event.Name)
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}
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return nil
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})
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return ds, nil
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}
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func (ds *DataSource) SetCallback(name string, callback func(event fsnotify.Event) error) error {
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if name == "chatroom" {
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name = Contact
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}
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return ds.dbm.AddCallback(name, callback)
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}
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// initMessageDbs 初始化消息数据库
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func (ds *DataSource) initMessageDbs() error {
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// 获取所有消息数据库文件路径
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dbPaths, err := ds.dbm.GetDBPath(Message)
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if err != nil {
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if strings.Contains(err.Error(), "db file not found") {
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ds.messageInfos = make([]MessageDBInfo, 0)
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return nil
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}
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return err
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}
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// 处理每个数据库文件
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infos := make([]MessageDBInfo, 0)
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for _, filePath := range dbPaths {
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db, err := ds.dbm.OpenDB(filePath)
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if err != nil {
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log.Err(err).Msgf("获取数据库 %s 失败", filePath)
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continue
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}
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// 获取 DBInfo 表中的开始时间
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var startTime time.Time
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rows, err := db.Query("SELECT tableIndex, tableVersion, tableDesc FROM DBInfo")
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if err != nil {
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log.Err(err).Msgf("查询数据库 %s 的 DBInfo 表失败", filePath)
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continue
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}
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for rows.Next() {
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var tableIndex int
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var tableVersion int64
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var tableDesc string
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if err := rows.Scan(&tableIndex, &tableVersion, &tableDesc); err != nil {
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log.Err(err).Msg("扫描 DBInfo 行失败")
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continue
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}
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// 查找描述为 "Start Time" 的记录
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if strings.Contains(tableDesc, "Start Time") {
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startTime = time.Unix(tableVersion/1000, (tableVersion%1000)*1000000)
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break
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}
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}
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rows.Close()
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// 组织 TalkerMap
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talkerMap := make(map[string]int)
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rows, err = db.Query("SELECT UsrName FROM Name2ID")
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if err != nil {
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log.Err(err).Msgf("查询数据库 %s 的 Name2ID 表失败", filePath)
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continue
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}
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i := 1
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for rows.Next() {
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var userName string
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if err := rows.Scan(&userName); err != nil {
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log.Err(err).Msg("扫描 Name2ID 行失败")
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continue
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}
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talkerMap[userName] = i
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i++
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}
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rows.Close()
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// 保存数据库信息
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infos = append(infos, MessageDBInfo{
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FilePath: filePath,
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StartTime: startTime,
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TalkerMap: talkerMap,
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})
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}
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// 按照 StartTime 排序数据库文件
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sort.Slice(infos, func(i, j int) bool {
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return infos[i].StartTime.Before(infos[j].StartTime)
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})
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// 设置结束时间
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for i := range infos {
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if i == len(infos)-1 {
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infos[i].EndTime = time.Now()
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} else {
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infos[i].EndTime = infos[i+1].StartTime
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}
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}
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ds.messageInfos = infos
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return nil
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}
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// getDBInfosForTimeRange 获取时间范围内的数据库信息
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func (ds *DataSource) getDBInfosForTimeRange(startTime, endTime time.Time) []MessageDBInfo {
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var dbs []MessageDBInfo
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for _, info := range ds.messageInfos {
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if info.StartTime.Before(endTime) && info.EndTime.After(startTime) {
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dbs = append(dbs, info)
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}
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}
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return dbs
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}
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func (ds *DataSource) GetMessages(ctx context.Context, startTime, endTime time.Time, talker string, sender string, keyword string, limit, offset int) ([]*model.Message, error) {
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if talker == "" {
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return nil, errors.ErrTalkerEmpty
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}
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// 解析talker参数，支持多个talker（以英文逗号分隔）
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talkers := util.Str2List(talker, ",")
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if len(talkers) == 0 {
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return nil, errors.ErrTalkerEmpty
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}
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// 找到时间范围内的数据库文件
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dbInfos := ds.getDBInfosForTimeRange(startTime, endTime)
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if len(dbInfos) == 0 {
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return nil, errors.TimeRangeNotFound(startTime, endTime)
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}
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// 解析sender参数，支持多个发送者（以英文逗号分隔）
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senders := util.Str2List(sender, ",")
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// 预编译正则表达式（如果有keyword）
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var regex *regexp.Regexp
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if keyword != "" {
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var err error
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regex, err = regexp.Compile(keyword)
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if err != nil {
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return nil, errors.QueryFailed("invalid regex pattern", err)
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}
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}
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// 从每个相关数据库中查询消息
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filteredMessages := []*model.Message{}
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for _, dbInfo := range dbInfos {
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// 检查上下文是否已取消
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if err := ctx.Err(); err != nil {
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return nil, err
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}
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db, err := ds.dbm.OpenDB(dbInfo.FilePath)
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if err != nil {
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log.Error().Msgf("数据库 %s 未打开", dbInfo.FilePath)
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continue
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}
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// 对每个talker进行查询
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for _, talkerItem := range talkers {
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// 构建查询条件
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conditions := []string{"Sequence >= ? AND Sequence <= ?"}
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args := []interface{}{startTime.Unix() * 1000, endTime.Unix() * 1000}
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// 添加talker条件
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talkerID, ok := dbInfo.TalkerMap[talkerItem]
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if ok {
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conditions = append(conditions, "TalkerId = ?")
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args = append(args, talkerID)
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} else {
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conditions = append(conditions, "StrTalker = ?")
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args = append(args, talkerItem)
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}
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query := fmt.Sprintf(`
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SELECT MsgSvrID, Sequence, CreateTime, StrTalker, IsSender,
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Type, SubType, StrContent, CompressContent, BytesExtra
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FROM MSG
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WHERE %s
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ORDER BY Sequence ASC
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`, strings.Join(conditions, " AND "))
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// 执行查询
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rows, err := db.QueryContext(ctx, query, args...)
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if err != nil {
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// 如果表不存在，跳过此talker
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if strings.Contains(err.Error(), "no such table") {
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continue
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}
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log.Err(err).Msgf("从数据库 %s 查询消息失败", dbInfo.FilePath)
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continue
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}
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// 处理查询结果，在读取时进行过滤
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for rows.Next() {
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var msg model.MessageV3
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var compressContent []byte
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var bytesExtra []byte
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err := rows.Scan(
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&msg.MsgSvrID,
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&msg.Sequence,
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&msg.CreateTime,
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&msg.StrTalker,
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&msg.IsSender,
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&msg.Type,
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&msg.SubType,
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&msg.StrContent,
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&compressContent,
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&bytesExtra,
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)
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if err != nil {
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rows.Close()
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return nil, errors.ScanRowFailed(err)
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}
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msg.CompressContent = compressContent
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msg.BytesExtra = bytesExtra
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// 将消息转换为标准格式
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message := msg.Wrap()
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// 应用sender过滤
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if len(senders) > 0 {
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senderMatch := false
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for _, s := range senders {
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if message.Sender == s {
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senderMatch = true
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break
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}
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}
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if !senderMatch {
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continue // 不匹配sender，跳过此消息
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}
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}
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// 应用keyword过滤
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if regex != nil {
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plainText := message.PlainTextContent()
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if !regex.MatchString(plainText) {
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continue // 不匹配keyword，跳过此消息
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}
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}
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// 通过所有过滤条件，保留此消息
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filteredMessages = append(filteredMessages, message)
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// 检查是否已经满足分页处理数量
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if limit > 0 && len(filteredMessages) >= offset+limit {
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// 已经获取了足够的消息，可以提前返回
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rows.Close()
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// 对所有消息按时间排序
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sort.Slice(filteredMessages, func(i, j int) bool {
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return filteredMessages[i].Seq < filteredMessages[j].Seq
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})
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// 处理分页
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if offset >= len(filteredMessages) {
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return []*model.Message{}, nil
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}
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end := offset + limit
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if end > len(filteredMessages) {
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end = len(filteredMessages)
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}
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return filteredMessages[offset:end], nil
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}
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}
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rows.Close()
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}
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}
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// 对所有消息按时间排序
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sort.Slice(filteredMessages, func(i, j int) bool {
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return filteredMessages[i].Seq < filteredMessages[j].Seq
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})
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// 处理分页
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if limit > 0 {
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if offset >= len(filteredMessages) {
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return []*model.Message{}, nil
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}
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end := offset + limit
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if end > len(filteredMessages) {
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end = len(filteredMessages)
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}
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return filteredMessages[offset:end], nil
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}
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return filteredMessages, nil
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}
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// GetContacts 实现获取联系人信息的方法
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func (ds *DataSource) GetContacts(ctx context.Context, key string, limit, offset int) ([]*model.Contact, error) {
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var query string
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var args []interface{}
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if key != "" {
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// 按照关键字查询
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query = `SELECT UserName, Alias, Remark, NickName, Reserved1 FROM Contact
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WHERE UserName = ? OR Alias = ? OR Remark = ? OR NickName = ?`
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args = []interface{}{key, key, key, key}
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} else {
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// 查询所有联系人
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query = `SELECT UserName, Alias, Remark, NickName, Reserved1 FROM Contact`
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}
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// 添加排序、分页
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query += ` ORDER BY UserName`
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if limit > 0 {
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query += fmt.Sprintf(" LIMIT %d", limit)
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if offset > 0 {
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query += fmt.Sprintf(" OFFSET %d", offset)
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}
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}
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// 执行查询
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db, err := ds.dbm.GetDB(Contact)
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if err != nil {
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return nil, err
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}
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rows, err := db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, errors.QueryFailed(query, err)
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}
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defer rows.Close()
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contacts := []*model.Contact{}
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for rows.Next() {
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var contactV3 model.ContactV3
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err := rows.Scan(
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&contactV3.UserName,
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&contactV3.Alias,
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&contactV3.Remark,
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&contactV3.NickName,
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&contactV3.Reserved1,
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)
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if err != nil {
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return nil, errors.ScanRowFailed(err)
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}
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contacts = append(contacts, contactV3.Wrap())
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}
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return contacts, nil
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}
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// GetChatRooms 实现获取群聊信息的方法
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func (ds *DataSource) GetChatRooms(ctx context.Context, key string, limit, offset int) ([]*model.ChatRoom, error) {
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var query string
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var args []interface{}
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if key != "" {
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// 按照关键字查询
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query = `SELECT ChatRoomName, Reserved2, RoomData FROM ChatRoom WHERE ChatRoomName = ?`
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args = []interface{}{key}
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// 执行查询
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db, err := ds.dbm.GetDB(Contact)
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if err != nil {
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return nil, err
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}
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rows, err := db.QueryContext(ctx, query, args...)
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if err != nil {
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return nil, errors.QueryFailed(query, err)
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}
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defer rows.Close()
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chatRooms := []*model.ChatRoom{}
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for rows.Next() {
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var chatRoomV3 model.ChatRoomV3
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err := rows.Scan(
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&chatRoomV3.ChatRoomName,
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&chatRoomV3.Reserved2,
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&chatRoomV3.RoomData,
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)
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if err != nil {
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return nil, errors.ScanRowFailed(err)
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}
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chatRooms = append(chatRooms, chatRoomV3.Wrap())
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}
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// 如果没有找到群聊，尝试通过联系人查找
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if len(chatRooms) == 0 {
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contacts, err := ds.GetContacts(ctx, key, 1, 0)
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if err == nil && len(contacts) > 0 && strings.HasSuffix(contacts[0].UserName, "@chatroom") {
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// 再次尝试通过用户名查找群聊
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rows, err := db.QueryContext(ctx,
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`SELECT ChatRoomName, Reserved2, RoomData FROM ChatRoom WHERE ChatRoomName = ?`,
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contacts[0].UserName)
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if err != nil {
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return nil, errors.QueryFailed(query, err)
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}
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defer rows.Close()
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for rows.Next() {
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var chatRoomV3 model.ChatRoomV3
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err := rows.Scan(
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&chatRoomV3.ChatRoomName,
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&chatRoomV3.Reserved2,
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&chatRoomV3.RoomData,
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)
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if err != nil {
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return nil, errors.ScanRowFailed(err)
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}
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chatRooms = append(chatRooms, chatRoomV3.Wrap())
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}
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// 如果群聊记录不存在，但联系人记录存在，创建一个模拟的群聊对象
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if len(chatRooms) == 0 {
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chatRooms = append(chatRooms, &model.ChatRoom{
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Name: contacts[0].UserName,
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Users: make([]model.ChatRoomUser, 0),
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User2DisplayName: make(map[string]string),
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})
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}
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}
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}
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return chatRooms, nil
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} else {
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// 查询所有群聊
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query = `SELECT ChatRoomName, Reserved2, RoomData FROM ChatRoom`
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// 添加排序、分页
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query += ` ORDER BY ChatRoomName`
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if limit > 0 {
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query += fmt.Sprintf(" LIMIT %d", limit)
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if offset > 0 {
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||
query += fmt.Sprintf(" OFFSET %d", offset)
|
||
}
|
||
}
|
||
|
||
// 执行查询
|
||
db, err := ds.dbm.GetDB(Contact)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
rows, err := db.QueryContext(ctx, query, args...)
|
||
if err != nil {
|
||
return nil, errors.QueryFailed(query, err)
|
||
}
|
||
defer rows.Close()
|
||
|
||
chatRooms := []*model.ChatRoom{}
|
||
for rows.Next() {
|
||
var chatRoomV3 model.ChatRoomV3
|
||
err := rows.Scan(
|
||
&chatRoomV3.ChatRoomName,
|
||
&chatRoomV3.Reserved2,
|
||
&chatRoomV3.RoomData,
|
||
)
|
||
|
||
if err != nil {
|
||
return nil, errors.ScanRowFailed(err)
|
||
}
|
||
|
||
chatRooms = append(chatRooms, chatRoomV3.Wrap())
|
||
}
|
||
|
||
return chatRooms, nil
|
||
}
|
||
}
|
||
|
||
// GetSessions 实现获取会话信息的方法
|
||
func (ds *DataSource) GetSessions(ctx context.Context, key string, limit, offset int) ([]*model.Session, error) {
|
||
var query string
|
||
var args []interface{}
|
||
|
||
if key != "" {
|
||
// 按照关键字查询
|
||
query = `SELECT strUsrName, nOrder, strNickName, strContent, nTime
|
||
FROM Session
|
||
WHERE strUsrName = ? OR strNickName = ?
|
||
ORDER BY nOrder DESC`
|
||
args = []interface{}{key, key}
|
||
} else {
|
||
// 查询所有会话
|
||
query = `SELECT strUsrName, nOrder, strNickName, strContent, nTime
|
||
FROM Session
|
||
ORDER BY nOrder DESC`
|
||
}
|
||
|
||
// 添加分页
|
||
if limit > 0 {
|
||
query += fmt.Sprintf(" LIMIT %d", limit)
|
||
if offset > 0 {
|
||
query += fmt.Sprintf(" OFFSET %d", offset)
|
||
}
|
||
}
|
||
|
||
// 执行查询
|
||
db, err := ds.dbm.GetDB(Contact)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
rows, err := db.QueryContext(ctx, query, args...)
|
||
if err != nil {
|
||
return nil, errors.QueryFailed(query, err)
|
||
}
|
||
defer rows.Close()
|
||
|
||
sessions := []*model.Session{}
|
||
for rows.Next() {
|
||
var sessionV3 model.SessionV3
|
||
err := rows.Scan(
|
||
&sessionV3.StrUsrName,
|
||
&sessionV3.NOrder,
|
||
&sessionV3.StrNickName,
|
||
&sessionV3.StrContent,
|
||
&sessionV3.NTime,
|
||
)
|
||
|
||
if err != nil {
|
||
return nil, errors.ScanRowFailed(err)
|
||
}
|
||
|
||
sessions = append(sessions, sessionV3.Wrap())
|
||
}
|
||
|
||
return sessions, nil
|
||
}
|
||
|
||
func (ds *DataSource) GetMedia(ctx context.Context, _type string, key string) (*model.Media, error) {
|
||
if key == "" {
|
||
return nil, errors.ErrKeyEmpty
|
||
}
|
||
|
||
if _type == "voice" {
|
||
return ds.GetVoice(ctx, key)
|
||
}
|
||
|
||
md5key, err := hex.DecodeString(key)
|
||
if err != nil {
|
||
return nil, errors.DecodeKeyFailed(err)
|
||
}
|
||
|
||
var dbType string
|
||
var table1, table2 string
|
||
|
||
switch _type {
|
||
case "image":
|
||
dbType = Image
|
||
table1 = "HardLinkImageAttribute"
|
||
table2 = "HardLinkImageID"
|
||
case "video":
|
||
dbType = Video
|
||
table1 = "HardLinkVideoAttribute"
|
||
table2 = "HardLinkVideoID"
|
||
case "file":
|
||
dbType = File
|
||
table1 = "HardLinkFileAttribute"
|
||
table2 = "HardLinkFileID"
|
||
default:
|
||
return nil, errors.MediaTypeUnsupported(_type)
|
||
}
|
||
|
||
db, err := ds.dbm.GetDB(dbType)
|
||
if err != nil {
|
||
return nil, err
|
||
}
|
||
|
||
query := fmt.Sprintf(`
|
||
SELECT
|
||
a.FileName,
|
||
a.ModifyTime,
|
||
IFNULL(d1.Dir,"") AS Dir1,
|
||
IFNULL(d2.Dir,"") AS Dir2
|
||
FROM
|
||
%s a
|
||
LEFT JOIN
|
||
%s d1 ON a.DirID1 = d1.DirId
|
||
LEFT JOIN
|
||
%s d2 ON a.DirID2 = d2.DirId
|
||
WHERE
|
||
a.Md5 = ?
|
||
`, table1, table2, table2)
|
||
args := []interface{}{md5key}
|
||
|
||
rows, err := db.QueryContext(ctx, query, args...)
|
||
if err != nil {
|
||
return nil, errors.QueryFailed(query, err)
|
||
}
|
||
defer rows.Close()
|
||
|
||
var media *model.Media
|
||
for rows.Next() {
|
||
var mediaV3 model.MediaV3
|
||
err := rows.Scan(
|
||
&mediaV3.Name,
|
||
&mediaV3.ModifyTime,
|
||
&mediaV3.Dir1,
|
||
&mediaV3.Dir2,
|
||
)
|
||
if err != nil {
|
||
return nil, errors.ScanRowFailed(err)
|
||
}
|
||
mediaV3.Type = _type
|
||
mediaV3.Key = key
|
||
media = mediaV3.Wrap()
|
||
}
|
||
|
||
if media == nil {
|
||
return nil, errors.ErrMediaNotFound
|
||
}
|
||
|
||
return media, nil
|
||
}
|
||
|
||
func (ds *DataSource) GetVoice(ctx context.Context, key string) (*model.Media, error) {
|
||
if key == "" {
|
||
return nil, errors.ErrKeyEmpty
|
||
}
|
||
|
||
query := `
|
||
SELECT Buf
|
||
FROM Media
|
||
WHERE Reserved0 = ?
|
||
`
|
||
args := []interface{}{key}
|
||
|
||
dbs, err := ds.dbm.GetDBs(Voice)
|
||
if err != nil {
|
||
return nil, errors.DBConnectFailed("", err)
|
||
}
|
||
|
||
for _, db := range dbs {
|
||
rows, err := db.QueryContext(ctx, query, args...)
|
||
if err != nil {
|
||
return nil, errors.QueryFailed(query, err)
|
||
}
|
||
defer rows.Close()
|
||
|
||
for rows.Next() {
|
||
var voiceData []byte
|
||
err := rows.Scan(
|
||
&voiceData,
|
||
)
|
||
if err != nil {
|
||
return nil, errors.ScanRowFailed(err)
|
||
}
|
||
if len(voiceData) > 0 {
|
||
return &model.Media{
|
||
Type: "voice",
|
||
Key: key,
|
||
Data: voiceData,
|
||
}, nil
|
||
}
|
||
}
|
||
}
|
||
|
||
return nil, errors.ErrMediaNotFound
|
||
}
|
||
|
||
// Close 实现 DataSource 接口的 Close 方法
|
||
func (ds *DataSource) Close() error {
|
||
return ds.dbm.Close()
|
||
}
|