111 lines
3.8 KiB
JavaScript
111 lines
3.8 KiB
JavaScript
import { WechatMpInstance } from './service/wechat/WechatMp';
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import { WechatPublicInstance } from './service/wechat/WechatPublic';
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import { WechatWebInstance } from './service/wechat/WechatWeb';
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import { WechatNativeInstance } from './service/wechat/WechatNative';
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import { load } from './utils/cheerio';
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import { assert } from 'oak-domain/lib/utils/assert';
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import { OakNetworkException, } from 'oak-domain/lib/types/Exception';
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class WechatSDK {
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mpMap;
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publicMap;
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webMap;
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nativeMap;
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constructor() {
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this.mpMap = {};
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this.publicMap = {};
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this.webMap = {};
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this.nativeMap = {};
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}
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getInstance(appId, type, appSecret, accessToken, externalRefreshFn) {
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// type 支持web网站扫码登录
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if (type === 'wechatMp') {
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if (this.mpMap[appId]) {
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return this.mpMap[appId];
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}
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const instance = new WechatMpInstance(appId, appSecret, accessToken, externalRefreshFn);
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Object.assign(this.mpMap, {
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[appId]: instance,
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});
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return instance;
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}
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else if (type === 'wechatPublic') {
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if (this.publicMap[appId]) {
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return this.publicMap[appId];
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}
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const instance = new WechatPublicInstance(appId, appSecret, accessToken, externalRefreshFn);
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Object.assign(this.publicMap, {
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[appId]: instance,
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});
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return instance;
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}
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else if (type === 'web') {
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if (this.webMap[appId]) {
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return this.webMap[appId];
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}
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const instance = new WechatWebInstance(appId, appSecret, accessToken, externalRefreshFn);
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Object.assign(this.webMap, {
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[appId]: instance,
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});
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return instance;
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}
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else if (type === 'native') {
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if (this.webMap[appId]) {
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return this.webMap[appId];
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}
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const instance = new WechatNativeInstance(appId, appSecret, accessToken, externalRefreshFn);
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Object.assign(this.nativeMap, {
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[appId]: instance,
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});
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return instance;
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}
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else {
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assert(false, `${type} not implemented`);
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}
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}
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/**
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* 解析微信公众号文章内容
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* @param url 微信公众号链接
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* @returns html
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*/
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async analyzePublicArticle(url) {
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let response;
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try {
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response = await fetch(url);
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}
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catch (err) {
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throw new OakNetworkException(`访问analyzePublicArticle接口失败，「${url}」`);
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}
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const html = await response.text();
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const $ = load(html);
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const title = $('#activity-name')
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? $('#activity-name').text()?.trim().replace(/\n/g, '')
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: '';
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const imgsElement = $('img');
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const imageList = [];
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for (let i = 0; i < imgsElement.length; i++) {
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// 把 img 元素中的 src 内容提取出来，加入到数组中
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const src = imgsElement[i].attribs['data-src'];
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if (src && (src.includes('http') || src.includes('https'))) {
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imageList.push(src);
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}
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}
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let publishDate;
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const lines = html.split('\n');
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for (let i = 0; i < lines.length; i++) {
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if (lines[i].includes('var ct =')) {
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const timeStr = lines[i].split('"')[1] + '000';
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publishDate = Number(timeStr);
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break;
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}
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}
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return {
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title,
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publishDate,
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imageList,
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};
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}
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}
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const SDK = new WechatSDK();
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export default SDK;
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export { WechatMpInstance, WechatWebInstance, WechatPublicInstance, WechatNativeInstance };
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