2024-02-19 14:57:36 +08:00
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package robot
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2024-01-19 12:06:30 +08:00
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import (
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"encoding/xml"
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"regexp"
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"slices"
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"strings"
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"wechat-robot/pkg/types"
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)
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// Message
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// @description: 消息
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type Message struct {
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MsgId int64 `json:"msgId"`
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CreateTime int `json:"createTime"`
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Content string `json:"content"`
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DisplayFullContent string `json:"displayFullContent"`
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FromUser string `json:"fromUser"`
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GroupUser string `json:"-"`
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MsgSequence int `json:"msgSequence"`
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Pid int `json:"pid"`
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Signature string `json:"signature"`
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ToUser string `json:"toUser"`
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Type types.MessageType `json:"type"`
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Raw string `json:"raw"`
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}
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// systemMsgDataXml
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// @description: 微信系统消息的xml结构
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type systemMsgDataXml struct {
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SysMsg sysMsg `xml:"sysmsg"`
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Type string `xml:"type,attr"`
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}
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// atMsgDataXml
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// @description: 微信@消息的xml结构
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type atMsgDataXml struct {
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XMLName xml.Name `xml:"msgsource"`
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Text string `xml:",chardata"`
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AtUserList string `xml:"atuserlist"`
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Silence string `xml:"silence"`
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MemberCount string `xml:"membercount"`
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Signature string `xml:"signature"`
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TmpNode struct {
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Text string `xml:",chardata"`
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PublisherID string `xml:"publisher-id"`
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} `xml:"tmp_node"`
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}
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// sysMsg
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// @description: 消息主体
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type sysMsg struct{}
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func (m Message) IsGroup() bool {
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return strings.HasSuffix(m.FromUser, "@chatroom")
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}
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// IsPat
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// @description: 是否是拍一拍消息
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// @receiver m
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// @return bool
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func (m Message) IsPat() bool {
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// 解析xml
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var d systemMsgDataXml
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if err := xml.Unmarshal([]byte(m.Content), &d); err != nil {
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return false
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}
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return m.Type == types.MsgTypeRecalled && d.Type == "pat"
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}
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// IsRevokeMsg
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// @description: 是否是撤回消息
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// @receiver m
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// @return bool
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func (m Message) IsRevokeMsg() bool {
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// 解析xml
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var d systemMsgDataXml
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if err := xml.Unmarshal([]byte(m.Content), &d); err != nil {
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return false
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}
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return m.Type == types.MsgTypeRecalled && d.Type == "revokemsg"
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}
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// IsNewUserJoin
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// @description: 是否是新人入群
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// @receiver m
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// @return bool
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func (m Message) IsNewUserJoin() bool {
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sysFlag := m.Type == types.MsgTypeSys && strings.Contains(m.Content, "\"邀请\"") && strings.Contains(m.Content, "\"加入了群聊")
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if sysFlag {
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return true
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}
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// 解析另一种情况
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var d systemMsgDataXml
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if err := xml.Unmarshal([]byte(m.Content), &d); err != nil {
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return false
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}
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return m.Type == types.MsgTypeSys && d.Type == "delchatroommember"
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}
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// IsAt
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// @description: 是否是At机器人的消息
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// @receiver m
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// @return bool
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func (m Message) IsAt() bool {
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return strings.HasSuffix(m.DisplayFullContent, "在群聊中@了你")
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}
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// IsAtAll
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// @description: 是否是At所有人的消息
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// @receiver m
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// @return bool
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func (m Message) IsAtAll() bool {
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// 解析raw里面的xml
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var d atMsgDataXml
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if err := xml.Unmarshal([]byte(m.Signature), &d); err != nil {
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return false
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}
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// 转换@用户列表为数组
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atUserList := strings.Split(d.AtUserList, ",")
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// 判断是否包含@所有人
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return slices.Contains(atUserList, "notify@all")
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}
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// IsPrivateText
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// @description: 是否是私聊消息
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// @receiver m
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// @return bool
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func (m Message) IsPrivateText() bool {
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// 发信人不以@chatroom结尾且消息类型为文本
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return !strings.HasSuffix(m.FromUser, "chatroom") && m.Type == types.MsgTypeText
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}
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// CleanContentStartWith
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// @description: 判断是否包含指定消息前缀
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// @receiver m
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// @param prefix
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// @return bool
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func (m Message) CleanContentStartWith(prefix string) bool {
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content := m.Content
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// 如果是@消息,过滤掉@的内容
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if m.IsAt() {
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re := regexp.MustCompile(`@([^ | ]+)`)
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matches := re.FindStringSubmatch(content)
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if len(matches) > 0 {
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// 过滤掉第一个匹配到的
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content = strings.Replace(content, matches[0], "", 1)
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}
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}
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// 去掉最前面的空格
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content = strings.TrimLeft(content, " ")
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content = strings.TrimLeft(content, " ")
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return strings.HasPrefix(content, prefix)
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}
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