lib-wechat/lib/elements.js

wx bot

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Parser = void 0;
const constanst_1 = require("./core/constanst");
class Parser {
    constructor(c) {
        this.c = c;
        this.message = [];
        this.brief = '';
    }
    async downloadMsgImg(message_id) {
        const res = await this.c.request.get('/cgi-bin/mmwebwx-bin/webwxgetmsgimg', {
            responseType: 'arraybuffer',
            params: {
                MsgID: message_id,
                skey: this.c.session.skey,
                type: 'big'
            }
        }).catch(e => {
            this.c.emit('internal.verbose', e, 'debug');
            throw new Error('获取图片或表情失败');
        });
        return {
            data: res.data,
            type: res.headers['content-type']
        };
    }
    async downloadMsgVideo(message_id) {
        const res = await this.c.request.get('/cgi-bin/mmwebwx-bin/webwxgetvideo', {
            responseType: 'arraybuffer',
            params: {
                MsgID: message_id,
                skey: this.c.session.skey
            },
            headers: {
                'Range': 'bytes=0-'
            }
        }).catch(e => {
            this.c.emit('internal.verbose', e, 'debug');
            throw new Error('获取视频失败');
        });
        return {
            data: res.data,
            type: res.headers['content-type']
        };
    }
    async downloadMsgVoice(message_id) {
        const res = await this.c.request.get('/cgi-bin/mmwebwx-bin/webwxgetvoice', {
            responseType: 'arraybuffer',
            params: {
                MsgID: message_id,
                skey: this.c.session.skey
            },
        }).catch(e => {
            this.c.emit('internal.verbose', e, 'debug');
            throw new Error('获取音频失败');
        });
        return {
            data: res.data,
            type: res.headers['content-type']
        };
    }
    async downloadMsgMedia(message_id) {
        const res = await this.c.request.get('/cgi-bin/mmwebwx-bin/webwxgetmedia', {
            baseURL: `https://file.${this.c.config.base_url}`,
            responseType: 'arraybuffer',
            params: {
                MsgID: message_id,
                skey: this.c.session.skey
            },
        }).catch(e => {
            this.c.emit('internal.verbose', e, 'debug');
            throw new Error('获取文件失败');
        });
        return {
            data: res.data,
            type: res.headers['content-type']
        };
    }
    async parse(message) {
        switch (message.MsgType) {
            case constanst_1.OriginMessage.Text:
                return this.text(message.Content);
            case constanst_1.OriginMessage.Emotion:
            case constanst_1.OriginMessage.Image: {
                const { data } = await this.downloadMsgImg(message.MsgId);
                this.message.push({
                    type: 'image',
                    file: data
                });
                this.brief += `[${message.MsgType === constanst_1.OriginMessage.Emotion ? '原创表情' : '图片'}]`;
                break;
            }
            case constanst_1.OriginMessage.Voice: {
                const { data } = await this.downloadMsgVoice(message.MsgId);
                this.message.push({
                    type: 'audio',
                    file: data
                });
                this.brief += `[语音]`;
                break;
            }
            case constanst_1.OriginMessage.Video:
            case constanst_1.OriginMessage.MicroVideo: {
                const { data } = await this.downloadMsgVideo(message.MsgId);
                this.message.push({
                    type: 'video',
                    file: data
                });
                this.brief += '[视频]';
                break;
            }
            case constanst_1.OriginMessage.App:
                if (message.AppMsgType === 6) {
                    const { data } = await this.downloadMsgMedia(message.MediaId);
                    this.message.push({
                        type: 'file',
                        file: data
                    });
                    this.brief += `[文件]`;
                    break;
                }
            default:
                this.c.emit('internal.verbose', `暂未支持的消息:` + JSON.stringify(message), 'debug');
        }
    }
    text(text) {
        const faceReg = /(\[\S+])/;
        while (text.length) {
            const [_, matched] = text.match(faceReg) || [];
            if (!matched)
                break;
            const matchedIdx = text.indexOf(matched);
            const prevText = text.substring(0, matchedIdx);
            if (prevText)
                this.message.push({ type: "text", text: prevText });
            this.brief += prevText;
            this.message.push({ type: "face", id: matched.slice(1, -1) });
            this.brief += `[表情:${matched.slice(1, -1)}]`;
            text = text.replace(prevText + matched, '');
        }
        if (text.length)
            this.message.push({ type: 'text', text });
        this.brief += text;
    }
}
exports.Parser = Parser;