john
9b4a25799f
Replace fixed ackText with a rule-based AckProvider that picks response templates by message type and intent (translate, summary, rewrite, poster, ppt, mindmap, code, search, schedule). Pure sync, zero I/O, auto-falls back to config.ackText on any error. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
1762 lines
60 KiB
JavaScript
1762 lines
60 KiB
JavaScript
import crypto from 'node:crypto';
|
||
import fs from 'node:fs';
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import path from 'node:path';
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import { fetch as undiciFetch } from 'undici';
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import { mergeMessageContent } from './message-stream.mjs';
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import { reconcileAgentSession } from './session-reconcile.mjs';
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import { isScheduleIntent, parseScheduleIntent, shouldUseScheduleAssistant } from './schedule-intent.mjs';
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import { PUBLISH_ROOT_DIR } from './user-publish.mjs';
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import { downloadTemporaryMedia, persistWechatImage } from './wechat-media.mjs';
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import { buildAckText } from './wechat/ack/ack-provider.mjs';
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const DEFAULT_WECHAT_TOKEN_URL = 'https://api.weixin.qq.com/cgi-bin/stable_token';
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const DEFAULT_WECHAT_CUSTOMER_SERVICE_URL =
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'https://api.weixin.qq.com/cgi-bin/message/custom/send';
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const DEFAULT_WECHAT_JSAPI_TICKET_URL = 'https://api.weixin.qq.com/cgi-bin/ticket/getticket';
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const DEFAULT_ASR_TARGET = process.env.H5_ASR_TARGET ?? 'https://asr.tkmind.cn';
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const DEFAULT_ACK_TEXT = '已收到，正在处理，完成后发到这里。';
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const DEFAULT_PROGRESS_TEXT = '还在处理，请稍等片刻。';
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const DEFAULT_STATUS_TEXT =
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'我在这边。上一条如果还没完成，我会继续把结果发给你；你也可以直接补一句要求。';
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const DEFAULT_UNSUPPORTED_TEXT = '当前先支持文字消息，你可以直接发文字给我。';
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const DEFAULT_UNBOUND_TEXT = '先点这里完成绑定，再继续和专属 Agent 对话：';
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const DEFAULT_PROGRESS_DELAY_MS = 8000;
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const PUBLIC_HTML_LINK_PATTERN =
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/https?:\/\/[^\s<>"')\]]+\/MindSpace\/([0-9a-f-]{36}|[a-z0-9._-]+)\/public\/([^\s<>"')\]]+\.html)/gi;
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function parseXmlField(xml, field) {
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const cdataMatch = xml.match(new RegExp(`<${field}><!\\[CDATA\\[([\\s\\S]*?)\\]\\]><\\/${field}>`));
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if (cdataMatch) return cdataMatch[1];
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const plainMatch = xml.match(new RegExp(`<${field}>([\\s\\S]*?)<\\/${field}>`));
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return plainMatch ? plainMatch[1].trim() : '';
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}
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function parseWechatMessage(xml) {
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return {
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toUserName: parseXmlField(xml, 'ToUserName'),
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fromUserName: parseXmlField(xml, 'FromUserName'),
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createTime: Number(parseXmlField(xml, 'CreateTime') || 0),
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msgType: parseXmlField(xml, 'MsgType').toLowerCase(),
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content: parseXmlField(xml, 'Content'),
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msgId: parseXmlField(xml, 'MsgId'),
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mediaId: parseXmlField(xml, 'MediaId'),
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format: parseXmlField(xml, 'Format'),
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recognition: parseXmlField(xml, 'Recognition'),
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picUrl: parseXmlField(xml, 'PicUrl'),
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locationX: parseXmlField(xml, 'Location_X'),
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locationY: parseXmlField(xml, 'Location_Y'),
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scale: parseXmlField(xml, 'Scale'),
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label: parseXmlField(xml, 'Label'),
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title: parseXmlField(xml, 'Title'),
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description: parseXmlField(xml, 'Description'),
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url: parseXmlField(xml, 'Url'),
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thumbMediaId: parseXmlField(xml, 'ThumbMediaId'),
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event: parseXmlField(xml, 'Event').toLowerCase(),
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eventKey: parseXmlField(xml, 'EventKey'),
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latitude: parseXmlField(xml, 'Latitude'),
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longitude: parseXmlField(xml, 'Longitude'),
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precision: parseXmlField(xml, 'Precision'),
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encrypt: parseXmlField(xml, 'Encrypt'),
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rawXml: xml,
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};
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}
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function readJsonResponse(response) {
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return response.text().then((text) => {
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if (!response.ok) {
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throw new Error(text || `upstream ${response.status}`);
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}
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return text ? JSON.parse(text) : null;
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});
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}
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async function readJsonBody(response) {
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const text = await response.text();
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if (!text) return { payload: null, text: '' };
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try {
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return { payload: JSON.parse(text), text };
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} catch {
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return { payload: null, text };
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}
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}
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function sanitizeAsrMessage(message) {
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if (!message || typeof message !== 'string') return '识别失败，请重试';
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const trimmed = message.trim();
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if (!trimmed) return '识别失败，请重试';
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if (/Failed to load audio|ffmpeg|Invalid data found when processing input|moov atom not found/i.test(trimmed)) {
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return '音频格式无法识别，请重新录制';
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}
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if (/timeout|timed out/i.test(trimmed)) return '识别超时，请重试';
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if (trimmed.length > 160) return `${trimmed.slice(0, 160)}…`;
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return trimmed;
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}
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function guessVoiceMimeType(format = '', contentType = '') {
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const normalizedContentType = String(contentType ?? '')
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.split(';')[0]
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.trim()
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.toLowerCase();
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if (normalizedContentType) return normalizedContentType;
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const normalizedFormat = String(format ?? '').trim().toLowerCase();
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if (normalizedFormat === 'amr') return 'audio/amr';
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if (normalizedFormat === 'wav') return 'audio/wav';
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if (normalizedFormat === 'mp3') return 'audio/mpeg';
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if (normalizedFormat === 'm4a') return 'audio/mp4';
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if (normalizedFormat === 'ogg') return 'audio/ogg';
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return 'application/octet-stream';
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}
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function deriveWechatEndpointFromUrl(sourceUrl, pathname) {
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if (!sourceUrl) return '';
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try {
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const url = new URL(sourceUrl);
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url.pathname = pathname;
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url.search = '';
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return url.toString();
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} catch {
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return '';
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}
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}
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function createUserMessage(text, metadata = {}) {
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return {
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id: crypto.randomUUID(),
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role: 'user',
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created: Math.floor(Date.now() / 1000),
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content: [{ type: 'text', text }],
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metadata: {
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userVisible: true,
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agentVisible: true,
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...metadata,
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},
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};
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}
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function messageVisibleText(message) {
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if (!message?.content) return '';
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return message.content
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.filter((item) => item.type === 'text' && typeof item.text === 'string')
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.map((item) => item.text)
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.join('');
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}
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function pushMessage(messages, incoming) {
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const last = messages[messages.length - 1];
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if (last?.id && incoming?.id && last.id === incoming.id) {
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return [
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...messages.slice(0, -1),
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{
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...last,
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content: mergeMessageContent(last.content, incoming.content),
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},
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];
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}
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return [...messages, incoming];
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}
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async function executeSessionReply(apiFetch, sessionId, requestId, prompt, metadata = {}) {
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const eventsResponse = await apiFetch(`/sessions/${sessionId}/events`, {
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method: 'GET',
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headers: { Accept: 'text/event-stream' },
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});
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if (!eventsResponse.ok || !eventsResponse.body) {
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const text = await eventsResponse.text().catch(() => '');
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throw new Error(text || '无法建立公众号消息事件流');
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}
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const replyResponse = await apiFetch(`/sessions/${sessionId}/reply`, {
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method: 'POST',
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body: JSON.stringify({
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request_id: requestId,
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user_message: createUserMessage(prompt, metadata),
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}),
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});
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if (!replyResponse.ok) {
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const text = await replyResponse.text().catch(() => '');
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throw new Error(text || 'Agent reply 请求失败');
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}
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replyResponse.body?.cancel().catch?.(() => {});
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const reader = eventsResponse.body.getReader();
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const decoder = new TextDecoder();
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let buffer = '';
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let messages = [];
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while (true) {
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const { value, done } = await reader.read();
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if (done) break;
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buffer += decoder.decode(value, { stream: true });
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const frames = buffer.split('\n\n');
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buffer = frames.pop() ?? '';
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for (const frame of frames) {
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let data = '';
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for (const line of frame.split('\n')) {
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if (line.startsWith('data:')) data += line.slice(5).trim();
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}
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if (!data) continue;
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let event;
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try {
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event = JSON.parse(data);
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} catch {
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continue;
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}
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const routingId = event.chat_request_id ?? event.request_id;
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if (routingId && routingId !== requestId) continue;
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if (event.type === 'Message' && event.message?.metadata?.userVisible) {
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const hasActionRequired = event.message.content?.some((item) => item.type === 'actionRequired');
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if (hasActionRequired) {
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throw new Error('当前回复需要人工确认，公众号通道暂不支持');
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}
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messages = pushMessage(messages, event.message);
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} else if (event.type === 'UpdateConversation') {
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messages = (event.conversation ?? []).filter((item) => item.metadata?.userVisible);
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} else if (event.type === 'Error') {
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throw new Error(event.error || '任务执行失败');
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} else if (event.type === 'Finish') {
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const assistant = [...messages].reverse().find((item) => item.role === 'assistant');
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return {
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text: messageVisibleText(assistant),
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tokenState: event.token_state ?? null,
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};
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}
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}
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}
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throw new Error('公众号消息事件流提前结束');
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}
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const WECHAT_CUSTOMER_TEXT_MAX_BYTES = 2048;
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function splitWechatText(text, maxBytes = WECHAT_CUSTOMER_TEXT_MAX_BYTES) {
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const normalized = String(text ?? '').trim();
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if (!normalized) return ['我先收到了，但这次没有生成可发送的文本结果。'];
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const chunks = [];
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let offset = 0;
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while (offset < normalized.length) {
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let byteCount = 0;
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let end = offset;
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while (end < normalized.length) {
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const charBytes = Buffer.byteLength(normalized[end], 'utf8');
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if (byteCount + charBytes > maxBytes) break;
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byteCount += charBytes;
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end += 1;
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}
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if (end === offset) break;
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chunks.push(normalized.slice(offset, end));
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offset = end;
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}
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return chunks.length > 0 ? chunks : ['我先收到了，但这次没有生成可发送的文本结果。'];
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}
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export { splitWechatText, WECHAT_CUSTOMER_TEXT_MAX_BYTES };
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function stripInternalWechatUsername(text) {
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return String(text ?? '').replace(/^\s*wx_[a-z0-9_]{4,64}\s*[,，、:：]\s*/i, '');
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}
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function replaceLeadingInternalWechatUsername(text, user) {
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const addressName = normalizeWechatName(user?.nickname) || normalizeWechatName(user?.displayName);
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if (!addressName) return stripInternalWechatUsername(text);
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return String(text ?? '').replace(
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/(^|[\s,，、:：])wx_[a-z0-9_]{4,64}\s*([,，、:：])\s*/gi,
|
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(_match, prefix = '', punctuation = '，') => `${prefix}${addressName}${punctuation}`,
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);
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}
|
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|
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function convertMarkdownLinks(text) {
|
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return String(text ?? '').replace(/\[([^\]\n]{1,160})\]\((https?:\/\/[^\s)]+)\)/g, (_match, label, url) => {
|
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const cleanLabel = String(label ?? '').trim();
|
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const cleanUrl = String(url ?? '').trim();
|
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return cleanLabel ? `${cleanLabel}\n${cleanUrl}` : cleanUrl;
|
||
});
|
||
}
|
||
|
||
function splitMarkdownTableRow(line) {
|
||
const trimmed = String(line ?? '').trim();
|
||
if (!trimmed.includes('|')) return null;
|
||
return trimmed
|
||
.replace(/^\|/, '')
|
||
.replace(/\|$/, '')
|
||
.split('|')
|
||
.map((cell) => cell.trim());
|
||
}
|
||
|
||
function isMarkdownTableSeparator(line) {
|
||
const cells = splitMarkdownTableRow(line);
|
||
return Boolean(cells?.length) && cells.every((cell) => /^:?-{3,}:?$/.test(cell));
|
||
}
|
||
|
||
function convertMarkdownTables(text) {
|
||
const lines = String(text ?? '').split('\n');
|
||
const output = [];
|
||
for (let index = 0; index < lines.length; index += 1) {
|
||
const headers = splitMarkdownTableRow(lines[index]);
|
||
if (!headers || !isMarkdownTableSeparator(lines[index + 1])) {
|
||
output.push(lines[index]);
|
||
continue;
|
||
}
|
||
|
||
const readableRows = [];
|
||
index += 2;
|
||
while (index < lines.length) {
|
||
const cells = splitMarkdownTableRow(lines[index]);
|
||
if (!cells) break;
|
||
const parts = cells
|
||
.map((cell, cellIndex) => {
|
||
const header = headers[cellIndex] || `列${cellIndex + 1}`;
|
||
return cell ? `${header}：${cell}` : '';
|
||
})
|
||
.filter(Boolean);
|
||
if (parts.length) readableRows.push(`- ${parts.join('；')}`);
|
||
index += 1;
|
||
}
|
||
index -= 1;
|
||
output.push(...readableRows);
|
||
}
|
||
return output.join('\n');
|
||
}
|
||
|
||
function stripMarkdownEmphasis(text) {
|
||
return String(text ?? '')
|
||
.replace(/\*\*([^*\n]+)\*\*/g, '$1')
|
||
.replace(/__([^_\n]+)__/g, '$1')
|
||
.replace(/`([^`\n]+)`/g, '$1')
|
||
.replace(/\*/g, '')
|
||
.replace(/__/g, '');
|
||
}
|
||
|
||
function formatWechatOutboundText(text, user = null) {
|
||
return replaceLeadingInternalWechatUsername(
|
||
stripMarkdownEmphasis(convertMarkdownTables(convertMarkdownLinks(text)))
|
||
.replace(/^\s*#{1,6}\s+/gm, '')
|
||
.replace(/^\s*---+\s*$/gm, '')
|
||
.replace(/\n{3,}/g, '\n\n'),
|
||
user,
|
||
);
|
||
}
|
||
|
||
function defaultPublicHtmlLinkExists(urlText) {
|
||
let url;
|
||
try {
|
||
url = new URL(urlText);
|
||
} catch {
|
||
return true;
|
||
}
|
||
const parts = url.pathname.split('/').filter(Boolean).map((part) => {
|
||
try {
|
||
return decodeURIComponent(part);
|
||
} catch {
|
||
return part;
|
||
}
|
||
});
|
||
if (parts.length < 4 || parts[0] !== PUBLISH_ROOT_DIR || parts[2] !== 'public') return true;
|
||
const owner = parts[1];
|
||
const rest = parts.slice(3);
|
||
if (!owner || rest.some((part) => !part || part === '.' || part === '..')) return false;
|
||
const root = path.resolve(process.cwd(), PUBLISH_ROOT_DIR, owner, 'public');
|
||
const target = path.resolve(root, ...rest);
|
||
if (target !== root && !target.startsWith(`${root}${path.sep}`)) return false;
|
||
return fs.existsSync(target) && fs.statSync(target).isFile();
|
||
}
|
||
|
||
export async function guardMissingPublicHtmlLinks(
|
||
text,
|
||
{ linkExists = defaultPublicHtmlLinkExists } = {},
|
||
) {
|
||
const value = String(text ?? '');
|
||
const replacements = [];
|
||
for (const match of value.matchAll(PUBLIC_HTML_LINK_PATTERN)) {
|
||
const url = match[0];
|
||
let exists = true;
|
||
try {
|
||
exists = await linkExists(url);
|
||
} catch {
|
||
exists = false;
|
||
}
|
||
if (!exists) {
|
||
const filename = match[2].split('/').pop() ?? '页面';
|
||
replacements.push([
|
||
url,
|
||
`（页面生成未完成，已阻止发送失效链接：${filename}。请重新生成页面后再打开。）`,
|
||
]);
|
||
}
|
||
}
|
||
return replacements.reduce((next, [from, to]) => next.replaceAll(from, to), value);
|
||
}
|
||
|
||
function isQuestionStatusProbe(text) {
|
||
return /^[?？]+$/.test(String(text ?? '').trim());
|
||
}
|
||
|
||
function isSimpleGreeting(text) {
|
||
const normalized = String(text ?? '')
|
||
.trim()
|
||
.replace(/[!！。.\s]+$/g, '')
|
||
.toLowerCase();
|
||
return /^(你好|您好|在吗|在不在|嗨|hi|hello|hey)$/.test(normalized);
|
||
}
|
||
|
||
function isConnectivityTest(text) {
|
||
const normalized = String(text ?? '')
|
||
.trim()
|
||
.replace(/[!！。.\s]+$/g, '');
|
||
return /^(测试\s*\d*|test\s*\d*)$/i.test(normalized);
|
||
}
|
||
|
||
function isTopicResetIntent(text) {
|
||
const normalized = String(text ?? '').trim();
|
||
return (
|
||
/^(换(个)?话题|新问题|忽略之前|不管之前|重新开始|reset)$/i.test(normalized) ||
|
||
/忽略.*之前|不要管.*之前|别管.*之前/.test(normalized)
|
||
);
|
||
}
|
||
|
||
function normalizeNumber(value) {
|
||
if (value === '' || value === null || value === undefined) return null;
|
||
const num = Number(value);
|
||
return Number.isFinite(num) ? num : null;
|
||
}
|
||
|
||
function normalizeWechatInboundIntent(inbound) {
|
||
const msgType = String(inbound?.msgType ?? '').toLowerCase();
|
||
const base = {
|
||
appId: '',
|
||
openid: String(inbound?.fromUserName ?? '').trim(),
|
||
msgId: String(inbound?.msgId ?? '').trim(),
|
||
msgType,
|
||
displayText: '',
|
||
agentText: '',
|
||
raw: { ...inbound },
|
||
};
|
||
|
||
if (msgType === 'text') {
|
||
const content = String(inbound?.content ?? '').trim();
|
||
return {
|
||
...base,
|
||
displayText: content,
|
||
agentText: content,
|
||
};
|
||
}
|
||
|
||
if (msgType === 'voice') {
|
||
const recognition = String(inbound?.recognition ?? '').trim();
|
||
return {
|
||
...base,
|
||
displayText: recognition ? `语音：${recognition}` : '语音消息',
|
||
agentText: recognition,
|
||
media: {
|
||
mediaId: inbound?.mediaId || '',
|
||
format: inbound?.format || '',
|
||
},
|
||
};
|
||
}
|
||
|
||
if (msgType === 'image') {
|
||
return {
|
||
...base,
|
||
displayText: '收到图片，请描述你想让我怎么处理',
|
||
agentText: '',
|
||
media: {
|
||
mediaId: inbound?.mediaId || '',
|
||
picUrl: inbound?.picUrl || '',
|
||
},
|
||
};
|
||
}
|
||
|
||
if (msgType === 'location') {
|
||
const latitude = normalizeNumber(inbound?.locationX);
|
||
const longitude = normalizeNumber(inbound?.locationY);
|
||
const scale = normalizeNumber(inbound?.scale);
|
||
const label = String(inbound?.label ?? '').trim();
|
||
const fragments = [
|
||
label ? `用户发送了位置：${label}` : '用户发送了位置',
|
||
latitude !== null ? `纬度：${latitude}` : '',
|
||
longitude !== null ? `经度：${longitude}` : '',
|
||
scale !== null ? `缩放：${scale}` : '',
|
||
].filter(Boolean);
|
||
return {
|
||
...base,
|
||
displayText: fragments.join('；'),
|
||
agentText: fragments.join('；'),
|
||
location: {
|
||
latitude,
|
||
longitude,
|
||
scale,
|
||
label,
|
||
},
|
||
};
|
||
}
|
||
|
||
if (msgType === 'link') {
|
||
const title = String(inbound?.title ?? '').trim();
|
||
const description = String(inbound?.description ?? '').trim();
|
||
const url = String(inbound?.url ?? '').trim();
|
||
const fragments = [
|
||
'用户分享了链接',
|
||
title ? `标题：${title}` : '',
|
||
description ? `描述：${description}` : '',
|
||
url ? `URL：${url}` : '',
|
||
].filter(Boolean);
|
||
return {
|
||
...base,
|
||
displayText: fragments.join('；'),
|
||
agentText: fragments.join('；'),
|
||
link: { title, description, url },
|
||
};
|
||
}
|
||
|
||
if (msgType === 'video' || msgType === 'shortvideo') {
|
||
return {
|
||
...base,
|
||
displayText: msgType === 'shortvideo' ? '收到小视频' : '收到视频',
|
||
agentText: '',
|
||
media: {
|
||
mediaId: inbound?.mediaId || '',
|
||
thumbMediaId: inbound?.thumbMediaId || '',
|
||
},
|
||
};
|
||
}
|
||
|
||
if (msgType === 'event') {
|
||
return {
|
||
...base,
|
||
displayText: inbound?.event ? `事件：${inbound.event}` : '事件消息',
|
||
agentText: '',
|
||
location:
|
||
inbound?.event === 'location'
|
||
? {
|
||
latitude: normalizeNumber(inbound?.latitude),
|
||
longitude: normalizeNumber(inbound?.longitude),
|
||
precision: normalizeNumber(inbound?.precision),
|
||
}
|
||
: undefined,
|
||
};
|
||
}
|
||
|
||
return base;
|
||
}
|
||
|
||
function buildWechatAgentPrompt(intent) {
|
||
const msgType = String(intent?.msgType ?? 'text');
|
||
const scheduleAssistantHint = shouldUseScheduleAssistant(intent?.agentText ?? intent?.content)
|
||
? [
|
||
'【日程技能要求】这条消息涉及待办、提醒或日程。',
|
||
'开始前先加载 `schedule-assistant` skill，并严格按 skill 里的边界执行。',
|
||
'只有在 `schedule_create_item` / `schedule_create_reminder` 等工具成功返回后，才能告诉用户“已经设置好了”。',
|
||
intent?.msgId ? `调用 schedule_create_item 时必须传入 sourceMessageId: ${intent.msgId}` : '',
|
||
'',
|
||
].filter(Boolean).join('\n')
|
||
: '';
|
||
if (msgType === 'voice') {
|
||
return [
|
||
scheduleAssistantHint,
|
||
'【微信服务号语音消息】用户通过语音输入，以下是微信识别结果。',
|
||
'',
|
||
`用户语音识别文本：${String(intent?.agentText ?? '').trim()}`,
|
||
]
|
||
.filter(Boolean)
|
||
.join('\n');
|
||
}
|
||
if (msgType === 'image') {
|
||
return [
|
||
scheduleAssistantHint,
|
||
'【微信服务号图片消息】用户发送了图片。',
|
||
'如用户没有明确要求，请先根据图片内容给出简短理解，并询问下一步。',
|
||
'',
|
||
String(intent?.agentText ?? '').trim(),
|
||
]
|
||
.filter(Boolean)
|
||
.join('\n');
|
||
}
|
||
if (msgType === 'location') {
|
||
const location = intent?.location ?? {};
|
||
return [
|
||
scheduleAssistantHint,
|
||
'【微信服务号位置消息】用户发送了当前位置。',
|
||
location.label ? `地址：${location.label}` : '',
|
||
location.latitude !== null && location.latitude !== undefined
|
||
? `纬度：${location.latitude}`
|
||
: '',
|
||
location.longitude !== null && location.longitude !== undefined
|
||
? `经度：${location.longitude}`
|
||
: '',
|
||
'请结合位置回答用户可能的路线、附近、行程或提醒需求；如果意图不明确，先简短询问。',
|
||
]
|
||
.filter(Boolean)
|
||
.join('\n');
|
||
}
|
||
if (msgType === 'link') {
|
||
const link = intent?.link ?? {};
|
||
return [
|
||
scheduleAssistantHint,
|
||
'【微信服务号链接消息】用户分享了链接。',
|
||
link.title ? `标题：${link.title}` : '',
|
||
link.description ? `描述：${link.description}` : '',
|
||
link.url ? `URL：${link.url}` : '',
|
||
]
|
||
.filter(Boolean)
|
||
.join('\n');
|
||
}
|
||
const content = String(intent?.agentText ?? intent?.content ?? '').trim();
|
||
const lines = [];
|
||
if (scheduleAssistantHint) lines.push(scheduleAssistantHint);
|
||
lines.push(
|
||
'【微信服务号新消息】请只回答下面这条用户消息，不要主动延续无关的历史话题。',
|
||
'若用户只是在测试连通性，请一句话确认收到即可，不要展开旧任务。',
|
||
'',
|
||
`用户消息：${content}`,
|
||
);
|
||
return lines.join('\n');
|
||
}
|
||
|
||
function looksLikeScheduleConfirmation(text) {
|
||
const compact = String(text ?? '').replace(/\s+/g, '');
|
||
if (!compact) return false;
|
||
if (/(没有|没能|未能|无法|不能|失败|需要你|请补充|请告诉)/.test(compact)) return false;
|
||
return /(已经|已|现在).{0,12}(设置|安排|记录|加上|添加|创建).{0,12}(待办|提醒|日程|安排|闹钟)|设置好了|已经设置好了|已经加上/.test(
|
||
compact,
|
||
);
|
||
}
|
||
|
||
function buildConnectivityTestReply(user) {
|
||
const name = resolveWechatAddressName(user);
|
||
return name
|
||
? `${name}，公众号消息通道正常，我收到你的测试了。`
|
||
: '公众号消息通道正常，我收到你的测试了。';
|
||
}
|
||
|
||
function normalizeWechatName(value) {
|
||
const name = String(value ?? '').trim();
|
||
if (!name || /^wx_[a-z0-9_]{4,64}$/i.test(name)) return '';
|
||
return name;
|
||
}
|
||
|
||
function resolveWechatAddressName(user) {
|
||
return normalizeWechatName(user?.nickname) || normalizeWechatName(user?.displayName) || '';
|
||
}
|
||
|
||
function buildGreetingText(user) {
|
||
const name = resolveWechatAddressName(user);
|
||
return name ? `你好，${name}！我在呢，有什么需要？` : '你好！我在呢，有什么需要？';
|
||
}
|
||
|
||
function buildStatusText(user, fallbackText) {
|
||
const name = resolveWechatAddressName(user);
|
||
if (!name) return fallbackText;
|
||
return `我在这边，${name}。上一条如果还没完成，我会继续把结果发给你；你也可以直接补一句要求。`;
|
||
}
|
||
|
||
function successResponse(task = null) {
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'text/plain; charset=utf-8',
|
||
body: 'success',
|
||
...(task ? { task } : {}),
|
||
};
|
||
}
|
||
|
||
export function loadWechatMpConfig(env = process.env) {
|
||
const appId = env.H5_WECHAT_MP_APP_ID?.trim() ?? env.H5_WECHAT_APP_ID?.trim() ?? '';
|
||
const appSecret =
|
||
env.H5_WECHAT_MP_APP_SECRET?.trim() ?? env.H5_WECHAT_APP_SECRET?.trim() ?? '';
|
||
const token = env.H5_WECHAT_MP_TOKEN?.trim() ?? '';
|
||
const publicBaseUrl = env.H5_PUBLIC_BASE_URL?.trim()?.replace(/\/$/, '') ?? '';
|
||
const enabledFlag = env.H5_WECHAT_MP_ENABLED === '1';
|
||
const bindPath = env.H5_WECHAT_MP_BIND_PATH?.trim() || '/auth/wechat/authorize?intent=login';
|
||
return {
|
||
enabled: enabledFlag && Boolean(appId && appSecret && token && publicBaseUrl),
|
||
appId,
|
||
appSecret,
|
||
token,
|
||
publicBaseUrl,
|
||
bindPath,
|
||
ackText: env.H5_WECHAT_MP_ACK_TEXT?.trim() || DEFAULT_ACK_TEXT,
|
||
ackRandomEnabled: env.H5_WECHAT_MP_ACK_RANDOM !== '0',
|
||
ackNicknameEnabled: env.H5_WECHAT_MP_ACK_NICKNAME !== '0',
|
||
progressText: env.H5_WECHAT_MP_PROGRESS_TEXT?.trim() || DEFAULT_PROGRESS_TEXT,
|
||
progressDelayMs: Math.max(
|
||
0,
|
||
Number(env.H5_WECHAT_MP_PROGRESS_DELAY_MS ?? DEFAULT_PROGRESS_DELAY_MS),
|
||
),
|
||
statusText: env.H5_WECHAT_MP_STATUS_TEXT?.trim() || DEFAULT_STATUS_TEXT,
|
||
unsupportedText: env.H5_WECHAT_MP_UNSUPPORTED_TEXT?.trim() || DEFAULT_UNSUPPORTED_TEXT,
|
||
unboundTextPrefix: env.H5_WECHAT_MP_UNBOUND_TEXT_PREFIX?.trim() || DEFAULT_UNBOUND_TEXT,
|
||
tokenUrl: env.H5_WECHAT_MP_TOKEN_URL?.trim() || DEFAULT_WECHAT_TOKEN_URL,
|
||
customerServiceUrl:
|
||
env.H5_WECHAT_MP_CUSTOMER_SERVICE_URL?.trim() || DEFAULT_WECHAT_CUSTOMER_SERVICE_URL,
|
||
jsapiTicketUrl:
|
||
env.H5_WECHAT_MP_JSAPI_TICKET_URL?.trim() ||
|
||
deriveWechatEndpointFromUrl(env.H5_WECHAT_MP_TOKEN_URL?.trim(), '/cgi-bin/ticket/getticket') ||
|
||
DEFAULT_WECHAT_JSAPI_TICKET_URL,
|
||
mediaPublicBaseUrl:
|
||
env.H5_WECHAT_MP_MEDIA_PUBLIC_BASE_URL?.trim()?.replace(/\/$/, '') || publicBaseUrl,
|
||
maxImageBytes: Math.max(1, Number(env.H5_WECHAT_MP_MAX_IMAGE_BYTES ?? 10 * 1024 * 1024)),
|
||
acceptVoice: env.H5_WECHAT_MP_ACCEPT_VOICE !== '0',
|
||
acceptImage: env.H5_WECHAT_MP_ACCEPT_IMAGE !== '0',
|
||
acceptLocation: env.H5_WECHAT_MP_ACCEPT_LOCATION !== '0',
|
||
acceptLink: env.H5_WECHAT_MP_ACCEPT_LINK !== '0',
|
||
encodingAesKey: env.H5_WECHAT_MP_ENCODING_AES_KEY?.trim() ?? '',
|
||
};
|
||
}
|
||
|
||
function sha1Hex(parts) {
|
||
return crypto
|
||
.createHash('sha1')
|
||
.update([...parts].sort().join(''))
|
||
.digest('hex');
|
||
}
|
||
|
||
export function verifyWechatMpSignature({ token, timestamp, nonce, signature }) {
|
||
return sha1Hex([token, timestamp, nonce]) === String(signature ?? '');
|
||
}
|
||
|
||
export function verifyWechatMpMsgSignature({ token, timestamp, nonce, echoStr, msgSignature }) {
|
||
return sha1Hex([token, timestamp, nonce, echoStr]) === String(msgSignature ?? '');
|
||
}
|
||
|
||
function decodeWechatMpAesKey(encodingAesKey) {
|
||
const key = Buffer.from(`${String(encodingAesKey ?? '').trim()}=`, 'base64');
|
||
if (key.length !== 32) {
|
||
throw new Error('invalid encoding aes key');
|
||
}
|
||
return key;
|
||
}
|
||
|
||
export function decryptWechatMpPayload({ encodingAesKey, appId, encrypted }) {
|
||
const key = decodeWechatMpAesKey(encodingAesKey);
|
||
const iv = key.subarray(0, 16);
|
||
const decipher = crypto.createDecipheriv('aes-256-cbc', key, iv);
|
||
decipher.setAutoPadding(false);
|
||
const cipherBuf = Buffer.from(String(encrypted ?? ''), 'base64');
|
||
let decoded = Buffer.concat([decipher.update(cipherBuf), decipher.final()]);
|
||
const pad = decoded.at(-1);
|
||
if (!Number.isInteger(pad) || pad < 1 || pad > 32) {
|
||
throw new Error('invalid padding');
|
||
}
|
||
decoded = decoded.subarray(0, decoded.length - pad);
|
||
const content = decoded.subarray(16);
|
||
const msgLen = content.readUInt32BE(0);
|
||
const msg = content.subarray(4, 4 + msgLen).toString('utf8');
|
||
const receivedAppId = content.subarray(4 + msgLen).toString('utf8');
|
||
if (receivedAppId !== String(appId ?? '')) {
|
||
throw new Error('appid mismatch');
|
||
}
|
||
return msg;
|
||
}
|
||
|
||
export function verifyWechatMpUrlChallenge(query = {}, config = {}) {
|
||
const timestamp = String(query.timestamp ?? '');
|
||
const nonce = String(query.nonce ?? '');
|
||
const echostr = String(query.echostr ?? '');
|
||
const encryptType = String(query.encrypt_type ?? '').toLowerCase();
|
||
|
||
if (encryptType === 'aes') {
|
||
const msgSignature = String(query.msg_signature ?? '');
|
||
if (!config?.token || !config?.encodingAesKey || !config?.appId) {
|
||
return { ok: false, status: 503, body: 'wechat mp aes mode not configured' };
|
||
}
|
||
if (
|
||
!verifyWechatMpMsgSignature({
|
||
token: config.token,
|
||
timestamp,
|
||
nonce,
|
||
echoStr: echostr,
|
||
msgSignature,
|
||
})
|
||
) {
|
||
return { ok: false, status: 403, body: 'invalid signature' };
|
||
}
|
||
try {
|
||
const plain = decryptWechatMpPayload({
|
||
encodingAesKey: config.encodingAesKey,
|
||
appId: config.appId,
|
||
encrypted: echostr,
|
||
});
|
||
return { ok: true, status: 200, body: plain };
|
||
} catch {
|
||
return { ok: false, status: 403, body: 'invalid echostr' };
|
||
}
|
||
}
|
||
|
||
if (
|
||
!verifyWechatMpSignature({
|
||
token: config?.token,
|
||
timestamp,
|
||
nonce,
|
||
signature: String(query.signature ?? ''),
|
||
})
|
||
) {
|
||
return { ok: false, status: 403, body: 'invalid signature' };
|
||
}
|
||
return { ok: true, status: 200, body: echostr };
|
||
}
|
||
|
||
export function buildWechatTextReply({
|
||
toUserName,
|
||
fromUserName,
|
||
content,
|
||
createTime = Math.floor(Date.now() / 1000),
|
||
}) {
|
||
return [
|
||
'<xml>',
|
||
`<ToUserName><![CDATA[${toUserName ?? ''}]]></ToUserName>`,
|
||
`<FromUserName><![CDATA[${fromUserName ?? ''}]]></FromUserName>`,
|
||
`<CreateTime>${Number(createTime) || Math.floor(Date.now() / 1000)}</CreateTime>`,
|
||
'<MsgType><![CDATA[text]]></MsgType>',
|
||
`<Content><![CDATA[${String(content ?? '')}]]></Content>`,
|
||
'</xml>',
|
||
].join('');
|
||
}
|
||
|
||
export function createWechatMpService({
|
||
config,
|
||
userAuth,
|
||
apiFetch,
|
||
sessionApiFetch = null,
|
||
scheduleService = null,
|
||
applySessionLlmProvider = null,
|
||
wechatFetch = undiciFetch,
|
||
linkExists = defaultPublicHtmlLinkExists,
|
||
logger = console,
|
||
}) {
|
||
if (!config?.enabled) {
|
||
return {
|
||
enabled: false,
|
||
};
|
||
}
|
||
config = {
|
||
...config,
|
||
tokenUrl: config.tokenUrl || DEFAULT_WECHAT_TOKEN_URL,
|
||
customerServiceUrl: config.customerServiceUrl || DEFAULT_WECHAT_CUSTOMER_SERVICE_URL,
|
||
jsapiTicketUrl: config.jsapiTicketUrl || DEFAULT_WECHAT_JSAPI_TICKET_URL,
|
||
progressText: config.progressText ?? DEFAULT_PROGRESS_TEXT,
|
||
progressDelayMs: Math.max(0, Number(config.progressDelayMs ?? DEFAULT_PROGRESS_DELAY_MS)),
|
||
statusText: config.statusText || DEFAULT_STATUS_TEXT,
|
||
mediaPublicBaseUrl: config.mediaPublicBaseUrl || config.publicBaseUrl,
|
||
maxImageBytes: Math.max(1, Number(config.maxImageBytes ?? 10 * 1024 * 1024)),
|
||
acceptVoice: config.acceptVoice !== false,
|
||
acceptImage: config.acceptImage !== false,
|
||
acceptLocation: config.acceptLocation !== false,
|
||
acceptLink: config.acceptLink !== false,
|
||
asrTarget: config.asrTarget || DEFAULT_ASR_TARGET,
|
||
};
|
||
|
||
let accessTokenCache = {
|
||
token: null,
|
||
expiresAt: 0,
|
||
};
|
||
let jsapiTicketCache = {
|
||
ticket: null,
|
||
expiresAt: 0,
|
||
};
|
||
|
||
const fetchForSession = (sessionId, pathname, init) =>
|
||
sessionApiFetch ? sessionApiFetch(sessionId, pathname, init) : apiFetch(pathname, init);
|
||
|
||
const buildBindUrl = () => {
|
||
if (/^https?:\/\//i.test(config.bindPath)) return config.bindPath;
|
||
const path = config.bindPath.startsWith('/') ? config.bindPath : `/${config.bindPath}`;
|
||
return `${config.publicBaseUrl}${path}`;
|
||
};
|
||
|
||
const verifyRequest = (query = {}) =>
|
||
verifyWechatMpSignature({
|
||
token: config.token,
|
||
timestamp: String(query.timestamp ?? ''),
|
||
nonce: String(query.nonce ?? ''),
|
||
signature: String(query.signature ?? ''),
|
||
});
|
||
|
||
const verifyUrlChallenge = (query = {}) => verifyWechatMpUrlChallenge(query, config);
|
||
|
||
const getStableAccessToken = async () => {
|
||
if (accessTokenCache.token && accessTokenCache.expiresAt > Date.now() + 60_000) {
|
||
return accessTokenCache.token;
|
||
}
|
||
const payload = await readJsonResponse(
|
||
await wechatFetch(config.tokenUrl, {
|
||
method: 'POST',
|
||
headers: { 'Content-Type': 'application/json' },
|
||
body: JSON.stringify({
|
||
grant_type: 'client_credential',
|
||
appid: config.appId,
|
||
secret: config.appSecret,
|
||
force_refresh: false,
|
||
}),
|
||
}),
|
||
);
|
||
if (!payload?.access_token) {
|
||
throw new Error(payload?.errmsg || '获取微信 access_token 失败');
|
||
}
|
||
const expiresIn = Number(payload.expires_in ?? 7200);
|
||
accessTokenCache = {
|
||
token: payload.access_token,
|
||
expiresAt: Date.now() + expiresIn * 1000,
|
||
};
|
||
return accessTokenCache.token;
|
||
};
|
||
|
||
const getJsapiTicket = async () => {
|
||
if (jsapiTicketCache.ticket && jsapiTicketCache.expiresAt > Date.now() + 60_000) {
|
||
return jsapiTicketCache.ticket;
|
||
}
|
||
const accessToken = await getStableAccessToken();
|
||
const url = new URL(config.jsapiTicketUrl);
|
||
url.searchParams.set('access_token', accessToken);
|
||
url.searchParams.set('type', 'jsapi');
|
||
const payload = await readJsonResponse(
|
||
await wechatFetch(url.toString(), {
|
||
method: 'GET',
|
||
headers: { Accept: 'application/json' },
|
||
}),
|
||
);
|
||
if (Number(payload?.errcode ?? 0) !== 0 || !payload?.ticket) {
|
||
throw new Error(payload?.errmsg || `获取微信 jsapi_ticket 失败 (${payload?.errcode})`);
|
||
}
|
||
const expiresIn = Number(payload.expires_in ?? 7200);
|
||
jsapiTicketCache = {
|
||
ticket: payload.ticket,
|
||
expiresAt: Date.now() + expiresIn * 1000,
|
||
};
|
||
return jsapiTicketCache.ticket;
|
||
};
|
||
|
||
const createJsSdkSignature = async (pageUrl) => {
|
||
const normalizedUrl = String(pageUrl ?? '').split('#')[0];
|
||
if (!/^https?:\/\//i.test(normalizedUrl)) {
|
||
throw new Error('签名 URL 必须是完整 http(s) 地址');
|
||
}
|
||
const ticket = await getJsapiTicket();
|
||
const nonceStr = crypto.randomBytes(12).toString('hex');
|
||
const timestamp = Math.floor(Date.now() / 1000);
|
||
const signature = crypto
|
||
.createHash('sha1')
|
||
.update(
|
||
[
|
||
`jsapi_ticket=${ticket}`,
|
||
`noncestr=${nonceStr}`,
|
||
`timestamp=${timestamp}`,
|
||
`url=${normalizedUrl}`,
|
||
].join('&'),
|
||
)
|
||
.digest('hex');
|
||
return {
|
||
appId: config.appId,
|
||
timestamp,
|
||
nonceStr,
|
||
signature,
|
||
url: normalizedUrl,
|
||
jsApiList: ['startRecord', 'stopRecord', 'onVoiceRecordEnd', 'translateVoice'],
|
||
};
|
||
};
|
||
|
||
const sendCustomerServiceText = async (openid, content, user = null) => {
|
||
const formatted = formatWechatOutboundText(content, user);
|
||
const guarded = await guardMissingPublicHtmlLinks(formatted, { linkExists });
|
||
const chunks = splitWechatText(guarded);
|
||
const accessToken = await getStableAccessToken();
|
||
for (const chunk of chunks) {
|
||
const payload = await readJsonResponse(
|
||
await wechatFetch(
|
||
`${config.customerServiceUrl}?access_token=${encodeURIComponent(accessToken)}`,
|
||
{
|
||
method: 'POST',
|
||
headers: { 'Content-Type': 'application/json' },
|
||
body: JSON.stringify({
|
||
touser: openid,
|
||
msgtype: 'text',
|
||
text: {
|
||
content: chunk,
|
||
},
|
||
}),
|
||
},
|
||
),
|
||
);
|
||
if (Number(payload?.errcode ?? 0) !== 0) {
|
||
const errcode = Number(payload?.errcode ?? 0);
|
||
const errmsg = String(payload?.errmsg ?? '').trim() || 'unknown_error';
|
||
throw new Error(`微信客服消息发送失败 errcode=${errcode} errmsg=${errmsg}`);
|
||
}
|
||
}
|
||
};
|
||
|
||
const sendTextToUser = async (userId, content) => {
|
||
const openid = await userAuth.getWechatOpenidForUser(userId, config.appId);
|
||
if (!openid) {
|
||
throw new Error('用户尚未绑定服务号，无法推送提醒');
|
||
}
|
||
await sendCustomerServiceText(openid, content);
|
||
};
|
||
|
||
const ensureSessionProvider = async (sessionId) => {
|
||
if (!applySessionLlmProvider || !sessionId) return;
|
||
const applied = await applySessionLlmProvider(sessionId);
|
||
if (applied && applied.ok === false) {
|
||
throw new Error(applied.message || '专属 Agent Provider 未配置');
|
||
}
|
||
};
|
||
|
||
const transcribeWechatVoiceMedia = async (mediaId, format) => {
|
||
if (!mediaId) return '';
|
||
const accessToken = await getStableAccessToken();
|
||
const downloaded = await downloadTemporaryMedia(accessToken, mediaId, { wechatFetch });
|
||
if (!downloaded.buffer?.length) return '';
|
||
|
||
const extension = String(format ?? '').trim().toLowerCase() || 'amr';
|
||
const form = new FormData();
|
||
form.append(
|
||
'file',
|
||
new Blob([downloaded.buffer], {
|
||
type: guessVoiceMimeType(format, downloaded.contentType),
|
||
}),
|
||
`wechat-voice.${extension}`,
|
||
);
|
||
|
||
const response = await wechatFetch(`${config.asrTarget.replace(/\/$/, '')}/asr/oneshot`, {
|
||
method: 'POST',
|
||
body: form,
|
||
});
|
||
const { payload, text } = await readJsonBody(response);
|
||
|
||
if (!response.ok) {
|
||
throw new Error(sanitizeAsrMessage(payload?.message ?? text ?? `ASR HTTP ${response.status}`));
|
||
}
|
||
if (Number(payload?.code ?? 200) !== 200) {
|
||
throw new Error(sanitizeAsrMessage(payload?.message ?? text ?? '识别失败，请重试'));
|
||
}
|
||
return String(payload?.data?.text ?? '').trim();
|
||
};
|
||
|
||
const ensureWechatAgentSession = async ({
|
||
userId,
|
||
openid,
|
||
forceNew = false,
|
||
userContext = null,
|
||
}) => {
|
||
if (forceNew) {
|
||
await userAuth.clearWechatAgentRoute(config.appId, openid);
|
||
}
|
||
const existingRoute = await userAuth.getWechatAgentRoute(config.appId, openid);
|
||
if (existingRoute?.agentSessionId) {
|
||
return existingRoute.agentSessionId;
|
||
}
|
||
|
||
const gate = await userAuth.canUseChat(userId);
|
||
if (!gate.ok) {
|
||
throw new Error(gate.message || '当前用户无法使用聊天能力');
|
||
}
|
||
|
||
const workingDir = await userAuth.resolveWorkingDir(userId);
|
||
const sessionPolicy = await userAuth.getAgentSessionPolicy(userId);
|
||
const publishLayout = await userAuth.getUserPublishLayout(userId);
|
||
const started = await readJsonResponse(
|
||
await apiFetch('/agent/start', {
|
||
method: 'POST',
|
||
body: JSON.stringify({
|
||
working_dir: workingDir,
|
||
enable_context_memory: sessionPolicy.enableContextMemory,
|
||
...(sessionPolicy.extensionOverrides
|
||
? { extension_overrides: sessionPolicy.extensionOverrides }
|
||
: {}),
|
||
}),
|
||
}),
|
||
);
|
||
const sessionId = started?.id;
|
||
if (!sessionId) {
|
||
throw new Error('公众号专属 Agent 会话创建失败');
|
||
}
|
||
|
||
// `/agent/start` already persists the owning user and goosed node via the
|
||
// portal proxy. Re-registering here without the node can overwrite the
|
||
// correct mapping back to node 0 in multi-goosed production.
|
||
const addressName = resolveWechatAddressName(userContext);
|
||
await reconcileAgentSession(
|
||
(pathname, init) => fetchForSession(sessionId, pathname, init),
|
||
sessionId,
|
||
{
|
||
workingDir,
|
||
sessionPolicy,
|
||
sandboxConstraints: publishLayout?.constraints ?? null,
|
||
userContext: publishLayout
|
||
? {
|
||
userId,
|
||
displayName: addressName || publishLayout.displayName,
|
||
username: addressName || null,
|
||
slug: null,
|
||
}
|
||
: null,
|
||
tolerateInvalidWorkingDir: true,
|
||
},
|
||
);
|
||
await userAuth.upsertWechatAgentRoute({
|
||
userId,
|
||
appId: config.appId,
|
||
openid,
|
||
agentSessionId: sessionId,
|
||
});
|
||
return sessionId;
|
||
};
|
||
|
||
const rememberWechatUserContext = async (sessionId, user) => {
|
||
const addressName = resolveWechatAddressName(user);
|
||
if (!addressName) return;
|
||
try {
|
||
await readJsonResponse(
|
||
await fetchForSession(sessionId, '/agent/harness_remember', {
|
||
method: 'POST',
|
||
body: JSON.stringify({
|
||
sessionId,
|
||
title: '微信服务号用户',
|
||
content: [
|
||
`当前服务号用户名称：${addressName}`,
|
||
'这是通过微信 openid 在 H5 绑定库中查询到的用户名称。',
|
||
'回复时可以自然使用该名称称呼用户，不要使用 openid 或 wx_ 开头的内部用户名。',
|
||
].join('\n'),
|
||
}),
|
||
}),
|
||
);
|
||
await readJsonResponse(
|
||
await fetchForSession(sessionId, '/agent/harness_bootstrap', {
|
||
method: 'POST',
|
||
body: JSON.stringify({ sessionId, force: true }),
|
||
}),
|
||
);
|
||
} catch (err) {
|
||
logger.warn?.('WeChat MP user context remember failed:', err);
|
||
}
|
||
};
|
||
|
||
const buildIntentMetadata = (intent) => ({
|
||
source: 'wechat_mp',
|
||
msgType: intent.msgType,
|
||
originalMsgId: intent.msgId || null,
|
||
displayText: intent.displayText || '',
|
||
mediaPublicUrl: intent.media?.publicUrl || null,
|
||
recognition: intent.msgType === 'voice' ? intent.agentText || null : null,
|
||
location: intent.location || null,
|
||
link: intent.link || null,
|
||
});
|
||
|
||
const persistIntentDetail = async ({ intent, userId = null, rawXmlHash = '' }) => {
|
||
if (typeof userAuth.insertWechatMpMessageDetail !== 'function') return;
|
||
await userAuth.insertWechatMpMessageDetail({
|
||
appId: config.appId,
|
||
openid: intent.openid,
|
||
msgId: intent.msgId || null,
|
||
userId,
|
||
msgType: intent.msgType,
|
||
displayText: intent.displayText || '',
|
||
agentText: intent.agentText || '',
|
||
mediaId: intent.media?.mediaId || null,
|
||
mediaUrl: intent.media?.picUrl || null,
|
||
mediaPublicUrl: intent.media?.publicUrl || null,
|
||
mediaFormat: intent.media?.format || null,
|
||
locationLat: intent.location?.latitude ?? null,
|
||
locationLng: intent.location?.longitude ?? null,
|
||
locationLabel: intent.location?.label || null,
|
||
linkUrl: intent.link?.url || null,
|
||
linkTitle: intent.link?.title || null,
|
||
rawXmlHash,
|
||
rawJson: intent.raw,
|
||
});
|
||
};
|
||
|
||
const runIntentMessage = async ({ inbound, intent, user }) => {
|
||
const resetCandidate =
|
||
intent.msgType === 'text' || intent.msgType === 'voice' ? intent.agentText : '';
|
||
const forceNew = isTopicResetIntent(resetCandidate);
|
||
let sessionId = await ensureWechatAgentSession({
|
||
userId: user.userId,
|
||
openid: inbound.fromUserName,
|
||
userContext: user,
|
||
forceNew,
|
||
});
|
||
await ensureSessionProvider(sessionId);
|
||
await rememberWechatUserContext(sessionId, user);
|
||
let finished = false;
|
||
let progressTimer = null;
|
||
if (config.progressDelayMs > 0 && config.progressText) {
|
||
progressTimer = setTimeout(() => {
|
||
if (finished) return;
|
||
sendCustomerServiceText(inbound.fromUserName, config.progressText, user).catch((err) => {
|
||
logger.warn?.('WeChat MP progress reply failed:', err);
|
||
});
|
||
}, config.progressDelayMs);
|
||
progressTimer.unref?.();
|
||
}
|
||
|
||
const requestId = crypto.randomUUID();
|
||
const guardScheduleReply = async (replyText) => {
|
||
if (!scheduleService || !looksLikeScheduleConfirmation(replyText)) return replyText;
|
||
const sourceMessageId = String(intent.msgId ?? '').trim();
|
||
if (!sourceMessageId || typeof scheduleService.listItemsBySourceMessage !== 'function') {
|
||
return replyText;
|
||
}
|
||
const items = await scheduleService
|
||
.listItemsBySourceMessage({
|
||
userId: user.userId,
|
||
sourceMessageId,
|
||
limit: 5,
|
||
})
|
||
.catch((err) => {
|
||
logger.warn?.('Schedule confirmation guard failed:', err);
|
||
return [];
|
||
});
|
||
if (items.length > 0) return replyText;
|
||
return [
|
||
'我刚才没有确认到待办/提醒已经写入系统，所以这次不能算设置成功。',
|
||
'请再发一次完整安排，比如“明天早上 6 点跑步，5 点半提醒我”。我会在工具写入成功后再确认。',
|
||
].join('\n');
|
||
};
|
||
try {
|
||
const reply = await executeSessionReply(
|
||
(pathname, init) => fetchForSession(sessionId, pathname, init),
|
||
sessionId,
|
||
requestId,
|
||
buildWechatAgentPrompt(intent),
|
||
buildIntentMetadata(intent),
|
||
);
|
||
if (reply.tokenState) {
|
||
await userAuth.billSessionUsage(user.userId, sessionId, reply.tokenState, requestId);
|
||
}
|
||
await sendCustomerServiceText(inbound.fromUserName, await guardScheduleReply(reply.text), user);
|
||
return { sessionId };
|
||
} catch (err) {
|
||
const message = err instanceof Error ? err.message : String(err);
|
||
const mayBeStaleSession =
|
||
/403|404|not found|无权访问|session/i.test(message) && sessionId;
|
||
if (mayBeStaleSession) {
|
||
sessionId = await ensureWechatAgentSession({
|
||
userId: user.userId,
|
||
openid: inbound.fromUserName,
|
||
forceNew: true,
|
||
userContext: user,
|
||
});
|
||
await ensureSessionProvider(sessionId);
|
||
await rememberWechatUserContext(sessionId, user);
|
||
const retryId = crypto.randomUUID();
|
||
const reply = await executeSessionReply(
|
||
(pathname, init) => fetchForSession(sessionId, pathname, init),
|
||
sessionId,
|
||
retryId,
|
||
buildWechatAgentPrompt(intent),
|
||
buildIntentMetadata(intent),
|
||
);
|
||
if (reply.tokenState) {
|
||
await userAuth.billSessionUsage(user.userId, sessionId, reply.tokenState, retryId);
|
||
}
|
||
await sendCustomerServiceText(inbound.fromUserName, await guardScheduleReply(reply.text), user);
|
||
return { sessionId };
|
||
}
|
||
throw err;
|
||
} finally {
|
||
finished = true;
|
||
if (progressTimer) clearTimeout(progressTimer);
|
||
}
|
||
};
|
||
|
||
const handleScheduleIntent = async ({ intent, user }) => {
|
||
if (!scheduleService) return null;
|
||
const scheduleIntent = parseScheduleIntent(intent.agentText);
|
||
if (!isScheduleIntent(scheduleIntent)) return null;
|
||
|
||
if (scheduleIntent.action === 'create_todo') {
|
||
if (scheduleIntent.needsClarification?.includes('todo_title')) {
|
||
return '可以。你想让我记哪一条待办？例如“帮我记一下 跟段吃饭”。';
|
||
}
|
||
const item = await scheduleService.createItem({
|
||
userId: user.userId,
|
||
kind: 'task',
|
||
title: scheduleIntent.title,
|
||
timezone: process.env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai',
|
||
sourceChannel: 'wechat',
|
||
sourceMessageId: intent.msgId || null,
|
||
sourceText: intent.agentText,
|
||
metadata: {
|
||
source: 'wechat_mp',
|
||
},
|
||
});
|
||
return `已记录到待办列表：${item.title}，未设置提醒。`;
|
||
}
|
||
|
||
if (scheduleIntent.action === 'create_daily_todo_digest') {
|
||
if (scheduleIntent.needsClarification?.includes('digest_time')) {
|
||
return '可以。你想每天几点收到当天待办记录？比如“每天早上 7 点发给我”。';
|
||
}
|
||
const subscription = await scheduleService.createDailyTodoDigest({
|
||
userId: user.userId,
|
||
hour: scheduleIntent.hour,
|
||
minute: scheduleIntent.minute,
|
||
timezone: process.env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai',
|
||
channel: 'wechat',
|
||
sourceChannel: 'wechat',
|
||
sourceMessageId: intent.msgId || null,
|
||
sourceText: intent.agentText,
|
||
});
|
||
const minuteText = subscription.minute === 0 ? '' : `${String(subscription.minute).padStart(2, '0')}分`;
|
||
return `已设置：我会每天早上 ${subscription.hour}点${minuteText} 通过服务号把当天待办记录发给你。`;
|
||
}
|
||
|
||
if (scheduleIntent.action === 'create_balance_alert') {
|
||
if (scheduleIntent.needsClarification?.includes('threshold')) {
|
||
return '可以。你想在余额低于多少时提醒我？例如“余额低于 20 元提醒我”。';
|
||
}
|
||
const subscription = await scheduleService.createBalanceLowAlert({
|
||
userId: user.userId,
|
||
thresholdCents: scheduleIntent.thresholdCents,
|
||
channel: 'wechat',
|
||
sourceChannel: 'wechat',
|
||
sourceMessageId: intent.msgId || null,
|
||
sourceText: intent.agentText,
|
||
});
|
||
return `已设置：当余额低于 ${(subscription.thresholdCents / 100).toFixed(2)} 元时，我会通过服务号提醒你。`;
|
||
}
|
||
|
||
if (scheduleIntent.action === 'query_schedule') {
|
||
const text = await scheduleService.buildTodoDigestText({
|
||
userId: user.userId,
|
||
timezone: process.env.H5_DEFAULT_TIMEZONE || 'Asia/Shanghai',
|
||
});
|
||
return text;
|
||
}
|
||
|
||
return null;
|
||
};
|
||
|
||
const handleInboundMessage = async (bodyText, query = {}) => {
|
||
if (!verifyRequest(query)) {
|
||
return { ok: false, status: 403, body: 'invalid signature' };
|
||
}
|
||
const inbound = parseWechatMessage(String(bodyText ?? ''));
|
||
const rawXmlHash = crypto.createHash('sha1').update(inbound.rawXml || '').digest('hex');
|
||
const intent = normalizeWechatInboundIntent(inbound);
|
||
intent.appId = config.appId;
|
||
if (!inbound.fromUserName || !inbound.toUserName || !inbound.msgType) {
|
||
return { ok: false, status: 400, body: 'invalid xml' };
|
||
}
|
||
if (String(query.encrypt_type ?? '').toLowerCase() === 'aes' || inbound.encrypt) {
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '当前公众号回调需使用明文模式接入，请联系管理员切换后再试。',
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (inbound.msgType === 'event' && inbound.event === 'location') {
|
||
await persistIntentDetail({ intent, rawXmlHash });
|
||
return successResponse();
|
||
}
|
||
|
||
if (inbound.msgType === 'event' && inbound.event === 'subscribe') {
|
||
await persistIntentDetail({ intent, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: `${config.unboundTextPrefix}\n${buildBindUrl()}`,
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (inbound.msgType === 'event') {
|
||
await persistIntentDetail({ intent, rawXmlHash });
|
||
return successResponse();
|
||
}
|
||
|
||
const supportedByConfig =
|
||
(intent.msgType === 'voice' && config.acceptVoice) ||
|
||
(intent.msgType === 'image' && config.acceptImage) ||
|
||
(intent.msgType === 'location' && config.acceptLocation) ||
|
||
(intent.msgType === 'link' && config.acceptLink) ||
|
||
intent.msgType === 'text' ||
|
||
intent.msgType === 'video' ||
|
||
intent.msgType === 'shortvideo';
|
||
|
||
if (!supportedByConfig) {
|
||
await persistIntentDetail({ intent, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: config.unsupportedText,
|
||
}),
|
||
};
|
||
}
|
||
|
||
const boundUser = await userAuth.findWechatUserByOpenid(config.appId, inbound.fromUserName);
|
||
if (!boundUser) {
|
||
await persistIntentDetail({ intent, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: `${config.unboundTextPrefix}\n${buildBindUrl()}`,
|
||
}),
|
||
};
|
||
}
|
||
if (boundUser.status === 'disabled') {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '当前账号不可用，请联系管理员处理。',
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'voice' && !intent.agentText.trim() && intent.media?.mediaId) {
|
||
try {
|
||
const fallbackText = await transcribeWechatVoiceMedia(intent.media.mediaId, intent.media.format);
|
||
if (fallbackText) {
|
||
intent.agentText = fallbackText;
|
||
intent.displayText = `语音：${fallbackText}`;
|
||
}
|
||
} catch (err) {
|
||
logger.warn?.('WeChat MP voice ASR fallback failed:', err);
|
||
}
|
||
}
|
||
|
||
if (intent.msgType === 'text' && !intent.agentText.trim()) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: config.unsupportedText,
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'voice' && !intent.agentText.trim()) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '未识别到语音文字，请再说一次或输入文字。',
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'image') {
|
||
try {
|
||
const accessToken = await getStableAccessToken();
|
||
const persisted = await persistWechatImage(
|
||
{
|
||
userId: boundUser.userId,
|
||
appId: config.appId,
|
||
openid: inbound.fromUserName,
|
||
msgId: inbound.msgId,
|
||
mediaId: inbound.mediaId,
|
||
picUrl: inbound.picUrl,
|
||
publicBaseUrl: config.mediaPublicBaseUrl,
|
||
maxImageBytes: config.maxImageBytes,
|
||
},
|
||
{
|
||
wechatFetch,
|
||
accessToken,
|
||
},
|
||
);
|
||
intent.media = {
|
||
...intent.media,
|
||
mediaId: inbound.mediaId || intent.media?.mediaId || '',
|
||
picUrl: inbound.picUrl || intent.media?.picUrl || '',
|
||
publicUrl: persisted.publicUrl,
|
||
format: persisted.contentType,
|
||
source: persisted.source,
|
||
};
|
||
intent.agentText = `[图片1]: ${persisted.publicUrl}`;
|
||
} catch (error) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '图片处理失败，请稍后重试或直接发送文字说明。',
|
||
}),
|
||
};
|
||
}
|
||
}
|
||
|
||
if (
|
||
intent.msgType === 'location' &&
|
||
(intent.location?.latitude == null || intent.location?.longitude == null)
|
||
) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '这次位置字段不完整，请重新发送位置或直接输入地点。',
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'link' && !intent.link?.url) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '这次没有拿到完整链接，请重新发送一次。',
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'video' || intent.msgType === 'shortvideo') {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: '已收到视频，当前先支持文本、语音、图片、定位和链接。',
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'text' && isQuestionStatusProbe(intent.agentText)) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: buildStatusText(boundUser, config.statusText),
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (intent.msgType === 'text' && isSimpleGreeting(intent.agentText)) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: buildGreetingText(boundUser),
|
||
}),
|
||
};
|
||
}
|
||
|
||
if ((intent.msgType === 'text' || intent.msgType === 'voice') && isConnectivityTest(intent.agentText)) {
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: buildConnectivityTestReply(boundUser),
|
||
}),
|
||
};
|
||
}
|
||
|
||
if (inbound.msgId && typeof userAuth.recordWechatMpMessage === 'function') {
|
||
const recorded = await userAuth.recordWechatMpMessage({
|
||
appId: config.appId,
|
||
openid: inbound.fromUserName,
|
||
msgId: inbound.msgId,
|
||
});
|
||
if (!recorded?.inserted) {
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: buildStatusText(boundUser, config.statusText),
|
||
}),
|
||
};
|
||
}
|
||
}
|
||
|
||
await persistIntentDetail({ intent, userId: boundUser.userId, rawXmlHash });
|
||
|
||
const scheduleReply =
|
||
intent.msgType === 'text' || intent.msgType === 'voice'
|
||
? await handleScheduleIntent({ intent, user: boundUser })
|
||
: null;
|
||
if (scheduleReply) {
|
||
if (inbound.msgId && typeof userAuth.finishWechatMpMessage === 'function') {
|
||
await userAuth.finishWechatMpMessage({
|
||
appId: config.appId,
|
||
openid: inbound.fromUserName,
|
||
msgId: inbound.msgId,
|
||
status: 'done',
|
||
agentSessionId: null,
|
||
});
|
||
}
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: scheduleReply,
|
||
}),
|
||
};
|
||
}
|
||
|
||
const task = runIntentMessage({
|
||
inbound,
|
||
intent,
|
||
user: boundUser,
|
||
})
|
||
.then(async ({ sessionId } = {}) => {
|
||
if (inbound.msgId && typeof userAuth.finishWechatMpMessage === 'function') {
|
||
await userAuth.finishWechatMpMessage({
|
||
appId: config.appId,
|
||
openid: inbound.fromUserName,
|
||
msgId: inbound.msgId,
|
||
status: 'done',
|
||
agentSessionId: sessionId,
|
||
});
|
||
}
|
||
})
|
||
.catch(async (err) => {
|
||
if (inbound.msgId && typeof userAuth.finishWechatMpMessage === 'function') {
|
||
await userAuth.finishWechatMpMessage({
|
||
appId: config.appId,
|
||
openid: inbound.fromUserName,
|
||
msgId: inbound.msgId,
|
||
status: 'failed',
|
||
}).catch(() => {});
|
||
}
|
||
logger.error?.('WeChat MP background reply failed:', err);
|
||
return sendCustomerServiceText(
|
||
inbound.fromUserName,
|
||
`这次转发到专属 Agent 失败了：${err instanceof Error ? err.message : String(err)}`,
|
||
boundUser,
|
||
).catch(() => {});
|
||
});
|
||
|
||
return {
|
||
ok: true,
|
||
status: 200,
|
||
contentType: 'application/xml; charset=utf-8',
|
||
body: buildWechatTextReply({
|
||
toUserName: inbound.fromUserName,
|
||
fromUserName: inbound.toUserName,
|
||
content: buildAckText({
|
||
intent,
|
||
nickname: resolveWechatAddressName(boundUser),
|
||
config,
|
||
fallbackText: config.ackText,
|
||
}),
|
||
}),
|
||
task,
|
||
};
|
||
};
|
||
|
||
const getRouteStatusForUser = async (userId) => {
|
||
const openid = await userAuth.getWechatOpenidForUser(userId, config.appId);
|
||
if (!openid) {
|
||
return {
|
||
enabled: true,
|
||
bound: false,
|
||
appId: config.appId,
|
||
openid: null,
|
||
agentSessionId: null,
|
||
routeStatus: null,
|
||
updatedAt: null,
|
||
};
|
||
}
|
||
const route = await userAuth.getWechatAgentRoute(config.appId, openid);
|
||
return {
|
||
enabled: true,
|
||
bound: true,
|
||
appId: config.appId,
|
||
openid,
|
||
agentSessionId: route?.agentSessionId ?? null,
|
||
routeStatus: route?.status ?? null,
|
||
updatedAt: route?.updatedAt ?? null,
|
||
};
|
||
};
|
||
|
||
const recreateRouteForUser = async (userId) => {
|
||
const openid = await userAuth.getWechatOpenidForUser(userId, config.appId);
|
||
if (!openid) {
|
||
return {
|
||
ok: false,
|
||
message: '当前账号尚未绑定该服务号',
|
||
};
|
||
}
|
||
const sessionId = await ensureWechatAgentSession({
|
||
userId,
|
||
openid,
|
||
forceNew: true,
|
||
});
|
||
const route = await userAuth.getWechatAgentRoute(config.appId, openid);
|
||
return {
|
||
ok: true,
|
||
route: {
|
||
enabled: true,
|
||
bound: true,
|
||
appId: config.appId,
|
||
openid,
|
||
agentSessionId: sessionId,
|
||
routeStatus: route?.status ?? 'active',
|
||
updatedAt: route?.updatedAt ?? null,
|
||
},
|
||
};
|
||
};
|
||
|
||
return {
|
||
enabled: true,
|
||
verifyRequest,
|
||
verifyUrlChallenge,
|
||
handleInboundMessage,
|
||
getRouteStatusForUser,
|
||
recreateRouteForUser,
|
||
createJsSdkSignature,
|
||
sendTextToUser,
|
||
};
|
||
}
|