feat: 补齐客户端/管理端服务模块与数据库 schema，完善登录短信、法大大签署及公共函数

uniCloud-tcb/cloudfunctions/jjxReviewStream/index.js

@@ -0,0 +1,106 @@
+'use strict';
+
+exports.main = async (event, context) => {
+  // uniCloud HTTP 触发器：event 本身就是请求信息
+  // event.httpMethod = 'GET'/'POST'/'OPTIONS'
+  // event.body = 请求体
+  // event.headers = 请求头
+  // context.callbackWaitsForEmptyEventLoop = true 保持连接
+
+  const corsHeaders = {
+    'Access-Control-Allow-Origin': '*',
+    'Access-Control-Allow-Methods': 'GET, POST, OPTIONS',
+    'Access-Control-Allow-Headers': 'Content-Type, Authorization',
+    'Access-Control-Max-Age': '86400'
+  };
+
+  // 处理 CORS 预检
+  if (event.httpMethod === 'OPTIONS') {
+    return {
+      statusCode: 204,
+      headers: corsHeaders,
+      body: ''
+    };
+  }
+
+  // 设置等待空事件循环（保持 SSE 连接）
+  context.callbackWaitsForEmptyEventLoop = false;
+
+  // 解析请求体
+  let body = {};
+  try {
+    const raw = event.body || '';
+    if (event.isBase64Encoded) {
+      body = JSON.parse(Buffer.from(raw, 'base64').toString());
+    } else {
+      try { body = JSON.parse(raw); } catch (e) {
+        const params = new URLSearchParams(raw);
+        for (const [k, v] of params) body[k] = v;
+      }
+    }
+  } catch (e) {}
+
+  const { file_id, user_id, file_name, file_size, record_id } = body;
+
+  if (!file_id) {
+    return {
+      statusCode: 400,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+      body: JSON.stringify({ error: '缺少 file_id' })
+    };
+  }
+
+  const COZE_TOKEN = 'sat_OiXlI4Da5Q99fxmul6pNfExmA6hR898UbxBDwrvjZ638APxRSlFnXbz6zyFedKNG';
+  const BOT_ID = '7689821072762011698';
+
+  const objectString = JSON.stringify([
+    { type: 'file', file_id: file_id },
+    { type: 'text', text: '请审查这份合同' }
+  ]);
+
+  // 调用扣子（流式）
+  try {
+    const chatRes = await uniCloud.httpclient.request('https://api.coze.cn/v3/chat', {
+      method: 'POST',
+      dataType: 'text',
+      contentType: 'json',
+      timeout: 300000,
+      headers: { 'Authorization': 'Bearer ' + COZE_TOKEN },
+      data: {
+        bot_id: BOT_ID,
+        user_id: user_id || 'anonymous',
+        stream: true,
+        auto_save_history: true,
+        additional_messages: [{
+          role: 'user',
+          content: objectString,
+          content_type: 'object_string'
+        }]
+      }
+    });
+
+    // 返回 SSE 格式
+    const text = chatRes.data || '';
+    const sseBody = text.split('\n').map(line => {
+      if (line.startsWith('data:')) return line + '\n\n';
+      return '';
+    }).join('') + 'data: [DONE]\n\n';
+
+    return {
+      statusCode: 200,
+      headers: {
+        ...corsHeaders,
+        'Content-Type': 'text/event-stream',
+        'Cache-Control': 'no-cache',
+        'Connection': 'keep-alive'
+      },
+      body: sseBody
+    };
+  } catch (e) {
+    return {
+      statusCode: 500,
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+      body: JSON.stringify({ error: e.message })
+    };
+  }
+};