740 lines
28 KiB
JavaScript
740 lines
28 KiB
JavaScript
import { assert } from 'oak-domain/lib/utils/assert';
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import URL from 'url';
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import sha1 from 'sha1';
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import x2js from 'x2js';
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import { WechatSDK, } from 'oak-external-sdk';
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import { expandUuidTo36Bytes, generateNewIdAsync } from 'oak-domain/lib/utils/uuid';
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import { composeDomainUrl } from '../utils/domain';
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import { composeUrl } from 'oak-domain/lib/utils/domain';
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import { createSession } from '../aspects/session';
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import { getMaterial } from '../aspects/application';
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const X2Js = new x2js();
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function assertFromWeChat(query, config) {
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const { signature, nonce, timestamp } = query;
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const token = config.server?.token;
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const stringArray = [nonce, timestamp, token];
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const sign = stringArray.sort().reduce((acc, val) => {
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acc += val;
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return acc;
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});
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const sha1Sign = sha1(sign);
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return signature === sha1Sign;
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}
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const CALLBACK = {};
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export function registerWeChatPublicEventCallback(appId, callback) {
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assert(!CALLBACK.hasOwnProperty(appId));
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CALLBACK[appId] = callback;
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}
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/**
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* 用户取关事件，注意要容wechatUser不存在的情况
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* @param openId
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* @param context
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* @returns
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*/
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async function setUserUnsubscribed(openId, context) {
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const list = await context.select('wechatUser', {
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data: {
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id: 1,
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subscribed: 1,
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subscribedAt: 1,
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},
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filter: {
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applicationId: context.getApplicationId(),
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openId,
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},
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indexFrom: 0,
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count: 10,
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}, { dontCollect: true });
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if (list && list.length > 0) {
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assert(list.length === 1);
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const weChatUser = list[0];
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if (weChatUser.subscribed) {
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await context.operate('wechatUser', {
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id: await generateNewIdAsync(),
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action: 'update',
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data: {
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subscribed: false,
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unsubscribeAt: Date.now(),
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},
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filter: {
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id: weChatUser.id,
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},
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}, { dontCollect: true, dontCreateOper: true });
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}
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}
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else {
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await context.operate('wechatUser', {
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id: await generateNewIdAsync(),
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action: 'create',
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data: {
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id: await generateNewIdAsync(),
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subscribed: false,
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applicationId: context.getApplicationId(),
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openId,
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},
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}, { dontCollect: true, dontCreateOper: true });
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}
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return;
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}
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async function setUserSubscribed(openId, eventKey, context) {
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const { id: applicationId, type: applicationType } = context.getApplication();
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const list = await context.select('wechatUser', {
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data: {
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id: 1,
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subscribed: 1,
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subscribedAt: 1,
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},
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filter: {
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applicationId,
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openId,
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},
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indexFrom: 0,
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count: 1,
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}, { dontCollect: true });
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const now = Date.now();
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const data = {
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// activeAt: now,
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};
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const doUpdate = async () => {
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if (list && list.length > 0) {
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assert(list.length === 1);
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const wechatUser = list[0];
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if (!wechatUser.subscribed) {
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Object.assign(data, {
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subscribed: true,
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subscribedAt: now,
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});
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}
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return await context.operate('wechatUser', {
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id: await generateNewIdAsync(),
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action: 'update',
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data,
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filter: {
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id: wechatUser.id,
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},
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}, { dontCollect: true, dontCreateOper: true });
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}
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Object.assign(data, {
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id: await generateNewIdAsync(),
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subscribed: true,
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subscribedAt: now,
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origin: applicationType === 'wechatPublic' ? 'public' : 'web',
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applicationId,
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openId,
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});
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// 这里试着直接把user也创建出来，by Xc 20190720
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/**
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* 这里不能创建user，否则会出现一个weChatUser有openId和userId，却没有unionId
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* 当同一个user先从小程序登录，再从公众号登录时就会生成两个user
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*/
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/* return warden.insertEntity(tables.user, {
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state: UserState.normal,
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activeAt: Date.now(),
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}, txn).then(
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(user) => {
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assign(data, { userId: user.id });
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return warden.insertEntity(tables.weChatUser, data, txn);
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}
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);*/
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return await context.operate('wechatUser', {
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id: await generateNewIdAsync(),
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action: 'create',
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data,
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}, { dontCollect: true });
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};
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if (eventKey) {
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// 如果带着场景值，需要查找对应的二维码，如果有公共逻辑在这里处理
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let sceneStr;
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if (eventKey.startsWith('qrscene_')) {
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sceneStr = eventKey.slice(eventKey.indexOf('qrscene_') + 8);
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}
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else {
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sceneStr = eventKey;
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}
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// sceneStr是id压缩后的字符串
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const wcqId = expandUuidTo36Bytes(sceneStr);
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const [wechatQrCode] = await context.select('wechatQrCode', {
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data: {
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id: 1,
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entity: 1,
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entityId: 1,
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expired: 1,
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},
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filter: {
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id: wcqId,
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},
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indexFrom: 0,
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count: 10,
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}, { dontCollect: true });
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if (wechatQrCode) {
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const application = context.getApplication();
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const { type, config, systemId } = application;
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assert(type === 'wechatPublic');
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const { appId, appSecret } = config;
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const wechatInstance = WechatSDK.getInstance(appId, 'wechatPublic', appSecret);
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const { expired } = wechatQrCode;
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if (expired) {
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// 若二维码已经过期，则直接告知用户已经过期
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content: '此二维码已经过期，请重新获取',
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});
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return;
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}
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const { entity, entityId } = wechatQrCode;
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switch (entity) {
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case 'user': {
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// 裂变获得的用户
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if (list[0] && !list[0].userId) {
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Object.assign(data, { userId: entityId });
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}
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break;
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}
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case 'userEntityGrant': {
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// 授权过来的用户，推送接受分享的客服消息给他
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const [userEntityGrant] = await context.select('userEntityGrant', {
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data: {
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id: 1,
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qrCodeType: 1,
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granter: {
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id: 1,
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name: 1,
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nickname: 1,
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},
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expired: 1,
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relationEntity: 1,
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},
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filter: {
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id: entityId,
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},
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}, { dontCollect: true });
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const { id, granter, expired, relationEntity: entity2, qrCodeType, } = userEntityGrant;
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const name = granter?.name || granter?.nickname || '某用户';
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if (qrCodeType === 'wechatPublicForMp') {
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// 找到相关的小程序
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const [appMp] = await context.select('application', {
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data: {
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id: 1,
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config: 1,
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},
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filter: {
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systemId,
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type: 'wechatMp',
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},
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}, { dontCollect: true });
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assert(appMp, '公众号推送小程序码时找不到关联的小程序');
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const { config } = appMp;
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const { appId } = config;
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const url = composeUrl('pages/wechatQrCode/scan/index', {
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scene: sceneStr,
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time: `${Date.now()}`,
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});
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// 先试着发文字链接
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const content = `${name}为您创建了一个授权，<a href='#' data-miniprogram-appid='${appId}' data-miniprogram-path='${url}'>请点击领取</a>`;
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if (!expired) {
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content,
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});
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}
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else {
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content: '您好，您扫描的二维码已经过期，请联系管理员重新获取',
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});
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}
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}
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else {
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// 推domain上的scan/code链接
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const [domain] = await context.select('domain', {
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data: {
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id: 1,
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url: 1,
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apiPath: 1,
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protocol: 1,
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port: 1,
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},
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filter: {
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system: {
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application$system: {
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id: applicationId,
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},
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},
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},
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}, { dontCollect: true });
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assert(domain, `处理userEntityGrant时，找不到对应的domain，applicationId是「${applicationId}」`);
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const url = composeDomainUrl(domain, 'wechatQrCode/scan', {
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scene: sceneStr,
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time: `${Date.now()}`,
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});
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if (!expired) {
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wechatInstance.sendServeMessage({
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openId,
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type: 'news',
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url,
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title: `${name}为您创建了一个授权`,
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description: '请接受',
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picurl: 'http://img95.699pic.com/element/40018/2473.png_860.png',
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});
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}
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else {
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content: '您好，您扫描的二维码已经过期，请联系管理员重新获取',
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});
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}
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}
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break;
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}
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case 'wechatLogin': {
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const [wechatLogin] = await context.select('wechatLogin', {
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data: {
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id: 1,
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qrCodeType: 1,
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expired: 1,
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userId: 1,
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type: 1,
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successed: 1,
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},
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filter: {
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id: entityId,
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},
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}, { dontCollect: true });
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const { qrCodeType, expired, userId, type, successed } = wechatLogin;
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if (qrCodeType === 'wechatPublicForMp') {
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// todo 公众号跳小程序 绑定login 后面再实现
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}
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else {
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const [domain] = await context.select('domain', {
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data: {
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id: 1,
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url: 1,
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apiPath: 1,
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protocol: 1,
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port: 1,
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},
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filter: {
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system: {
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application$system: {
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id: applicationId,
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},
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},
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},
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}, { dontCollect: true });
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assert(domain, `处理wechatLogin时，找不到对应的domain，applicationId是「${applicationId}」`);
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const url = composeDomainUrl(domain, 'wechatQrCode/scan', {
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scene: sceneStr,
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time: `${Date.now()}`,
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});
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const title = type === 'bind' ? '扫码绑定' : '扫码登录';
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const description = type === 'bind' ? '去绑定' : '去登录';
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if (!expired) {
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wechatInstance.sendServeMessage({
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openId,
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type: 'news',
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url,
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title,
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description,
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picurl: 'http://img95.699pic.com/element/40018/2473.png_860.png',
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});
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}
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else {
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content: '您好，您扫描的二维码已经过期，请重新生成',
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});
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}
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}
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break;
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}
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default: {
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break;
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}
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}
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}
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else {
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console.warn(`线上有扫描二维码场景值，但找不到对应的qrCode，eventKey是${eventKey}`);
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}
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}
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await doUpdate();
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return;
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}
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async function setClickEventKey(openId, eventKey, context) {
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const application = context.getApplication();
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const { type, config, systemId, id: applicationId } = application;
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assert(type === 'wechatPublic');
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const { appId, appSecret } = config;
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const wechatInstance = WechatSDK.getInstance(appId, 'wechatPublic', appSecret);
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if (eventKey) {
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var indexOfDollarSign = eventKey.indexOf('$');
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var resultString = eventKey.substring(0, indexOfDollarSign);
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const [wechatMenu] = await context.select('wechatMenu', {
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data: {
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id: 1,
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applicationId: 1,
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menuConfig: 1,
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wechatPublicTagId: 1,
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wechatPublicTag: {
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wechatId: 1,
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},
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},
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filter: indexOfDollarSign !== -1
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? {
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applicationId,
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wechatPublicTag: {
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wechatId: Number(resultString),
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},
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}
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: {
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applicationId,
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wechatPublicTagId: {
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$exists: false,
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},
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},
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}, { dontCollect: true });
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if (wechatMenu) {
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let content = null;
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wechatMenu.menuConfig?.button.map((ele) => {
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if (ele.key === eventKey) {
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content = ele.content;
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}
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else if (ele.sub_button && ele.sub_button.length > 0) {
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var subEle = ele.sub_button.find((sub) => {
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return sub.key === eventKey;
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});
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if (subEle) {
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content = subEle.content;
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}
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}
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});
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if (content) {
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content,
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});
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return;
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}
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}
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}
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}
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async function setSubscribedEventKey(openId, eventKey, context) {
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const application = context.getApplication();
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const { type, config, systemId, id: applicationId } = application;
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assert(type === 'wechatPublic');
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const { appId, appSecret } = config;
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const wechatInstance = WechatSDK.getInstance(appId, 'wechatPublic', appSecret);
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if (eventKey) {
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const [wechatPublicAutoReply] = await context.select('wechatPublicAutoReply', {
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data: {
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id: 1,
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applicationId: 1,
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content: 1,
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event: 1,
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type: 1,
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},
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filter: {
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applicationId,
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event: 'subscribe',
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},
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}, { dontCollect: true });
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if (wechatPublicAutoReply) {
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let content = null;
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if (wechatPublicAutoReply.type === 'text' &&
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wechatPublicAutoReply.content &&
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wechatPublicAutoReply.content.text) {
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content = wechatPublicAutoReply.content.text;
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wechatInstance.sendServeMessage({
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openId,
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type: 'text',
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content,
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});
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return;
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}
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}
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}
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}
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async function onWeChatPublicEvent(data, context) {
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const { ToUserName, FromUserName, CreateTime, MsgType, Event, EventKey } = data;
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const appId = context.getApplicationId();
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let evt;
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// 如果有应用注入的事件回调则处理之，不依赖其返回
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if (CALLBACK[appId]) {
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CALLBACK[appId](data, context);
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}
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// 接收事件推送
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if (MsgType === 'event') {
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if (Event) {
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const event = Event.toLowerCase();
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switch (event) {
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case 'subscribe':
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setUserSubscribed(FromUserName, EventKey, context);
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evt = `用户${FromUserName}关注公众号`;
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break;
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case 'scan':
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setUserSubscribed(FromUserName, EventKey, context);
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evt = `用户${FromUserName}再次扫描带${EventKey}键值的二维码`;
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break;
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case 'unsubscribe': {
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setUserUnsubscribed(FromUserName, context);
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evt = `用户${FromUserName}取关`;
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break;
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}
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case 'location': {
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evt = `用户${FromUserName}上传了地理位置信息`;
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break;
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}
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case 'click': {
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setClickEventKey(FromUserName, EventKey, context);
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evt = `用户${FromUserName}点击菜单【${EventKey}】`;
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break;
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}
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case 'view': {
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evt = `用户${FromUserName}点击菜单跳转链接【${EventKey}】`;
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break;
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}
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case 'templatesendjobfinish': {
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// 模板消息发送完成，去更新对应的messageSent对象
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// 这个在线上测试没法通过，返回的msgId不符合，不知道为什么
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const { MsgID: msgId, Status: status, FromUserName: openId, } = data;
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evt = `应用${appId}的用户${FromUserName}发来了${Event}事件，内容是${JSON.stringify(data)}`;
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break;
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}
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default: {
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evt = `应用${appId}的用户${FromUserName}发来了${Event}事件，内容是${JSON.stringify(data)}`;
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break;
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}
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}
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if (process.env.NODE_ENV === 'development') {
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console.log(evt);
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}
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return {
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content: '',
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contentType: 'application/text',
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};
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}
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}
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assert(MsgType);
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// 接收普通消息
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||
const content = '<xml>' +
|
||
`<ToUserName>${FromUserName}</ToUserName>` +
|
||
`<FromUserName>${ToUserName}</FromUserName>` +
|
||
`<CreateTime>${CreateTime}</CreateTime>` +
|
||
'<MsgType>transfer_customer_service</MsgType>' +
|
||
'</xml>';
|
||
const { Content, Title, Description, Url, PicUrl } = data;
|
||
switch (MsgType) {
|
||
case 'text': {
|
||
evt = `接收到来自用户「${MsgType}」消息：「${Content}」`;
|
||
break;
|
||
}
|
||
case 'link': {
|
||
evt = `接收到来自用户「${MsgType}」消息：Title =>「${Title}」, Description =>「${Description}」, Url =>「${Url}」`;
|
||
break;
|
||
}
|
||
case 'image': {
|
||
evt = `接收到来自用户「${MsgType}」消息：「${PicUrl}」`;
|
||
break;
|
||
}
|
||
default: {
|
||
evt = `接收到来自用户「${MsgType}」消息`;
|
||
break;
|
||
}
|
||
}
|
||
if (process.env.NODE_ENV === 'development') {
|
||
console.log(evt);
|
||
}
|
||
try {
|
||
await createSession({
|
||
data,
|
||
type: 'wechatPublic',
|
||
entity: 'application',
|
||
entityId: appId,
|
||
}, context);
|
||
}
|
||
catch (err) {
|
||
// todo 出错的话怎么处理 by wkj
|
||
return {
|
||
content,
|
||
contentType: 'application/xml',
|
||
};
|
||
}
|
||
return {
|
||
content,
|
||
contentType: 'application/xml',
|
||
};
|
||
}
|
||
async function onWeChatMpEvent(data, context) {
|
||
const appId = context.getApplicationId();
|
||
try {
|
||
await createSession({
|
||
data,
|
||
type: 'wechatMp',
|
||
entity: 'application',
|
||
entityId: appId,
|
||
}, context);
|
||
}
|
||
catch (err) {
|
||
// todo 出错的话怎么处理 by wkj
|
||
return {
|
||
content: 'success',
|
||
};
|
||
}
|
||
return {
|
||
content: 'success',
|
||
};
|
||
}
|
||
const endpoints = {
|
||
wechatPublicEvent: [
|
||
{
|
||
name: '微信公众号回调接口',
|
||
method: 'post',
|
||
params: ['appId'],
|
||
fn: async (context, params, headers, req, body) => {
|
||
const { appId } = params;
|
||
if (!appId) {
|
||
console.error('applicationId参数不存在');
|
||
console.log(JSON.stringify(body));
|
||
return '';
|
||
}
|
||
await context.setApplication(appId);
|
||
const { xml: data } = X2Js.xml2js(body);
|
||
const { content, contentType } = await onWeChatPublicEvent(data, context);
|
||
return content;
|
||
},
|
||
},
|
||
{
|
||
name: '微信公众号验证接口',
|
||
method: 'get',
|
||
params: ['appId'],
|
||
fn: async (context, params, body, req, headers) => {
|
||
const { searchParams } = new URL.URL(`http://${req.headers.host}${req.url}`);
|
||
const { appId } = params;
|
||
if (!appId) {
|
||
console.error('applicationId参数不存在');
|
||
const echostr = searchParams.get('echostr');
|
||
return echostr;
|
||
}
|
||
const [application] = await context.select('application', {
|
||
data: {
|
||
id: 1,
|
||
config: 1,
|
||
},
|
||
filter: {
|
||
id: appId,
|
||
},
|
||
}, {});
|
||
if (!application) {
|
||
throw new Error(`未找到${appId}对应的app`);
|
||
}
|
||
const signature = searchParams.get('signature');
|
||
const timestamp = searchParams.get('timestamp');
|
||
const nonce = searchParams.get('nonce');
|
||
const isWeChat = assertFromWeChat({ signature, timestamp, nonce }, application.config);
|
||
if (isWeChat) {
|
||
const echostr = searchParams.get('echostr');
|
||
return echostr;
|
||
}
|
||
else {
|
||
throw new Error('Verify Failed');
|
||
}
|
||
},
|
||
},
|
||
],
|
||
wechatMpEvent: [
|
||
{
|
||
name: '微信小程序回调接口',
|
||
method: 'post',
|
||
params: ['appId'],
|
||
fn: async (context, params, headers, req, body) => {
|
||
const { appId } = params;
|
||
if (!appId) {
|
||
console.error('applicationId参数不存在');
|
||
console.log(JSON.stringify(body));
|
||
return '';
|
||
}
|
||
await context.setApplication(appId);
|
||
const application = context.getApplication();
|
||
const { config } = application;
|
||
const { server } = config;
|
||
if (!server) {
|
||
throw new Error(`请配置：“微信小程序-服务器配置”`);
|
||
}
|
||
if (server?.dataFormat === 'json') {
|
||
const { content } = await onWeChatMpEvent(body, context);
|
||
return content;
|
||
}
|
||
else {
|
||
const { xml: data } = X2Js.xml2js(body);
|
||
const { content } = await onWeChatMpEvent(data, context);
|
||
return content;
|
||
}
|
||
},
|
||
},
|
||
{
|
||
name: '微信小程序验证接口',
|
||
method: 'get',
|
||
params: ['appId'],
|
||
fn: async (context, params, body, req, headers) => {
|
||
const { searchParams } = new URL.URL(`http://${req.headers.host}${req.url}`);
|
||
const { appId } = params;
|
||
if (!appId) {
|
||
console.error('applicationId参数不存在');
|
||
const echostr = searchParams.get('echostr');
|
||
return echostr;
|
||
}
|
||
const [application] = await context.select('application', {
|
||
data: {
|
||
id: 1,
|
||
config: 1,
|
||
},
|
||
filter: {
|
||
id: appId,
|
||
},
|
||
}, {});
|
||
if (!application) {
|
||
throw new Error(`未找到${appId}对应的app`);
|
||
}
|
||
const signature = searchParams.get('signature');
|
||
const timestamp = searchParams.get('timestamp');
|
||
const nonce = searchParams.get('nonce');
|
||
const isWeChat = assertFromWeChat({ signature, timestamp, nonce }, application.config);
|
||
if (isWeChat) {
|
||
const echostr = searchParams.get('echostr');
|
||
return echostr;
|
||
}
|
||
else {
|
||
throw new Error('Verify Failed');
|
||
}
|
||
},
|
||
},
|
||
],
|
||
wechatMaterial: [
|
||
{
|
||
name: '获取微信素材',
|
||
method: 'get',
|
||
fn: async (context, params, headers, req, body) => {
|
||
const { searchParams } = new URL.URL(`http://${req.headers.host}${req.url}`);
|
||
const applicationId = searchParams.get('applicationId');
|
||
const mediaId = searchParams.get('mediaId');
|
||
const isPermanent = searchParams.get('isPermanent');
|
||
const base64 = await getMaterial({
|
||
applicationId: applicationId,
|
||
mediaId: mediaId,
|
||
isPermanent: isPermanent === 'true',
|
||
}, context);
|
||
// 微信临时素材 公众号只支持image和video，小程序只支持image
|
||
// 现只支持image
|
||
const af = Buffer.from(base64, 'base64');
|
||
return af;
|
||
},
|
||
},
|
||
],
|
||
};
|
||
export default endpoints;
|