218 lines
6.3 KiB
Go
218 lines
6.3 KiB
Go
package model
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import (
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"path/filepath"
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"strings"
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"time"
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"github.com/sjzar/chatlog/internal/model/wxproto"
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"github.com/sjzar/chatlog/pkg/util/lz4"
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"google.golang.org/protobuf/proto"
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)
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const (
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// Source
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WeChatV3 = "wechatv3"
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WeChatV4 = "wechatv4"
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WeChatDarwinV3 = "wechatdarwinv3"
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)
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type Message struct {
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Sequence int64 `json:"sequence"` // 消息序号,10位时间戳 + 3位序号
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CreateTime time.Time `json:"createTime"` // 消息创建时间,10位时间戳
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TalkerID int `json:"talkerID"` // 聊天对象,Name2ID 表序号,索引值
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Talker string `json:"talker"` // 聊天对象,微信 ID or 群 ID
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IsSender int `json:"isSender"` // 是否为发送消息,0 接收消息,1 发送消息
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Type int64 `json:"type"` // 消息类型
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SubType int `json:"subType"` // 消息子类型
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Content string `json:"content"` // 消息内容,文字聊天内容 或 XML
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CompressContent []byte `json:"compressContent"` // 非文字聊天内容,如图片、语音、视频等
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IsChatRoom bool `json:"isChatRoom"` // 是否为群聊消息
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ChatRoomSender string `json:"chatRoomSender"` // 群聊消息发送人
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// Fill Info
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// 从联系人等信息中填充
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DisplayName string `json:"-"` // 显示名称
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ChatRoomName string `json:"-"` // 群聊名称
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MediaMessage *MediaMessage `json:"-"` // 多媒体消息
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Version string `json:"-"` // 消息版本,内部判断
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}
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// CREATE TABLE MSG (
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// localId INTEGER PRIMARY KEY AUTOINCREMENT,
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// TalkerId INT DEFAULT 0,
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// MsgSvrID INT,
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// Type INT,
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// SubType INT,
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// IsSender INT,
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// CreateTime INT,
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// Sequence INT DEFAULT 0,
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// StatusEx INT DEFAULT 0,
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// FlagEx INT,
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// Status INT,
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// MsgServerSeq INT,
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// MsgSequence INT,
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// StrTalker TEXT,
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// StrContent TEXT,
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// DisplayContent TEXT,
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// Reserved0 INT DEFAULT 0,
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// Reserved1 INT DEFAULT 0,
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// Reserved2 INT DEFAULT 0,
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// Reserved3 INT DEFAULT 0,
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// Reserved4 TEXT,
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// Reserved5 TEXT,
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// Reserved6 TEXT,
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// CompressContent BLOB,
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// BytesExtra BLOB,
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// BytesTrans BLOB
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// )
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type MessageV3 struct {
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Sequence int64 `json:"Sequence"` // 消息序号,10位时间戳 + 3位序号
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CreateTime int64 `json:"CreateTime"` // 消息创建时间,10位时间戳
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TalkerID int `json:"TalkerId"` // 聊天对象,Name2ID 表序号,索引值
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StrTalker string `json:"StrTalker"` // 聊天对象,微信 ID or 群 ID
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IsSender int `json:"IsSender"` // 是否为发送消息,0 接收消息,1 发送消息
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Type int64 `json:"Type"` // 消息类型
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SubType int `json:"SubType"` // 消息子类型
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StrContent string `json:"StrContent"` // 消息内容,文字聊天内容 或 XML
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CompressContent []byte `json:"CompressContent"` // 非文字聊天内容,如图片、语音、视频等
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BytesExtra []byte `json:"BytesExtra"` // protobuf 额外数据,记录群聊发送人等信息
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// 非关键信息,后续有需要再加入
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// LocalID int64 `json:"localId"`
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// MsgSvrID int64 `json:"MsgSvrID"`
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// StatusEx int `json:"StatusEx"`
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// FlagEx int `json:"FlagEx"`
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// Status int `json:"Status"`
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// MsgServerSeq int64 `json:"MsgServerSeq"`
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// MsgSequence int64 `json:"MsgSequence"`
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// DisplayContent string `json:"DisplayContent"`
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// Reserved0 int `json:"Reserved0"`
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// Reserved1 int `json:"Reserved1"`
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// Reserved2 int `json:"Reserved2"`
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// Reserved3 int `json:"Reserved3"`
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// Reserved4 string `json:"Reserved4"`
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// Reserved5 string `json:"Reserved5"`
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// Reserved6 string `json:"Reserved6"`
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// BytesTrans []byte `json:"BytesTrans"`
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}
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func (m *MessageV3) Wrap() *Message {
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_m := &Message{
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Sequence: m.Sequence,
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CreateTime: time.Unix(m.CreateTime, 0),
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TalkerID: m.TalkerID,
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Talker: m.StrTalker,
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IsSender: m.IsSender,
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Type: m.Type,
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SubType: m.SubType,
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Content: m.StrContent,
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CompressContent: m.CompressContent,
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Version: WeChatV3,
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}
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_m.IsChatRoom = strings.HasSuffix(_m.Talker, "@chatroom")
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if _m.Type == 49 {
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b, err := lz4.Decompress(m.CompressContent)
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if err == nil {
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_m.Content = string(b)
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}
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}
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if _m.Type != 1 {
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mediaMessage, err := NewMediaMessage(_m.Type, _m.Content)
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if err == nil {
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_m.MediaMessage = mediaMessage
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}
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}
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if len(m.BytesExtra) != 0 {
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if bytesExtra := ParseBytesExtra(m.BytesExtra); bytesExtra != nil {
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if _m.IsChatRoom {
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_m.ChatRoomSender = bytesExtra[1]
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}
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// FIXME xml 中的 md5 数据无法匹配到 hardlink 记录,所以直接用 proto 数据
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if _m.Type == 43 {
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path := bytesExtra[4]
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parts := strings.Split(filepath.ToSlash(path), "/")
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if len(parts) > 1 {
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path = strings.Join(parts[1:], "/")
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}
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_m.MediaMessage.MediaPath = path
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}
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}
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}
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return _m
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}
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// ParseBytesExtra 解析额外数据
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// 按需解析
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func ParseBytesExtra(b []byte) map[int]string {
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var pbMsg wxproto.BytesExtra
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if err := proto.Unmarshal(b, &pbMsg); err != nil {
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return nil
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}
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if pbMsg.Items == nil {
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return nil
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}
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ret := make(map[int]string, len(pbMsg.Items))
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for _, item := range pbMsg.Items {
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ret[int(item.Type)] = item.Value
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}
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return ret
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}
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func (m *Message) PlainText(showChatRoom bool, host string) string {
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buf := strings.Builder{}
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talker := m.Talker
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if m.IsSender == 1 {
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talker = "我"
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} else if m.IsChatRoom {
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talker = m.ChatRoomSender
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}
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if m.DisplayName != "" {
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buf.WriteString(m.DisplayName)
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buf.WriteString("(")
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buf.WriteString(talker)
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buf.WriteString(")")
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} else {
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buf.WriteString(talker)
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}
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buf.WriteString(" ")
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if m.IsChatRoom && showChatRoom {
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buf.WriteString("[")
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if m.ChatRoomName != "" {
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buf.WriteString(m.ChatRoomName)
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buf.WriteString("(")
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buf.WriteString(m.Talker)
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buf.WriteString(")")
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} else {
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buf.WriteString(m.Talker)
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}
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buf.WriteString("] ")
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}
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buf.WriteString(m.CreateTime.Format("2006-01-02 15:04:05"))
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buf.WriteString("\n")
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if m.MediaMessage != nil {
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m.MediaMessage.SetHost(host)
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buf.WriteString(m.MediaMessage.String())
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} else {
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buf.WriteString(m.Content)
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}
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buf.WriteString("\n")
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return buf.String()
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}
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