110 lines
2.6 KiB
JavaScript
110 lines
2.6 KiB
JavaScript
import http from 'node:http';
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const moduleId = 'custom-templates-core';
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const port = Number.parseInt(process.env.PORT || '8787', 10);
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const capabilities = ['customTemplates'];
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const allowedActions = new Set([
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'customTemplates:use',
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'customTemplates:create',
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'customTemplates:update',
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'customTemplates:delete',
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'customTemplates:migrate',
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'customTemplates:read',
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'customTemplates:list',
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'customTemplates:validate',
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'customTemplates:filter',
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]);
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function sendJson(res, statusCode, payload) {
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const body = JSON.stringify(payload);
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res.writeHead(statusCode, {
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'Content-Type': 'application/json; charset=utf-8',
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'Content-Length': Buffer.byteLength(body),
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});
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res.end(body);
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}
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function readJsonBody(req) {
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return new Promise((resolve, reject) => {
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let body = '';
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req.on('data', (chunk) => {
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body += chunk;
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if (body.length > 1024 * 1024) {
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req.destroy();
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reject(new Error('request_body_too_large'));
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}
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});
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req.on('end', () => {
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if (!body.trim()) {
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resolve({});
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return;
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}
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try {
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resolve(JSON.parse(body));
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} catch {
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reject(new Error('invalid_json'));
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}
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});
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req.on('error', reject);
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});
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}
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function sendAuthorization(res, action) {
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const allowed = typeof action === 'string' && allowedActions.has(action);
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sendJson(res, allowed ? 200 : 403, {
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moduleId,
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allowed,
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action,
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capabilities,
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});
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}
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const server = http.createServer((req, res) => {
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const url = new URL(req.url || '/', `http://${req.headers.host || '127.0.0.1'}`);
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if (req.method === 'GET' && url.pathname === '/health') {
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sendJson(res, 200, { moduleId, status: 'healthy' });
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return;
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}
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if (req.method === 'GET' && url.pathname === '/status') {
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sendJson(res, 200, {
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moduleId,
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status: 'authorization_contract_ready',
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capabilities,
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note: '此模块先承接自定义模板授权执行层；后续再迁移 CRUD、筛选和数据处理链路',
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});
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return;
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}
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if (req.method === 'GET' && url.pathname === '/capabilities') {
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sendJson(res, 200, {
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moduleId,
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capabilities,
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actions: Array.from(allowedActions),
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});
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return;
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}
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if (req.method === 'POST' && url.pathname === '/authorize') {
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readJsonBody(req)
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.then((body) => {
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sendAuthorization(res, body.action);
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})
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.catch((error) => {
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sendJson(res, 400, { moduleId, allowed: false, error: error.message });
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});
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return;
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}
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sendJson(res, 404, { moduleId, error: '接口不存在' });
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});
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server.listen(port, '0.0.0.0', () => {
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console.log(`${moduleId} listening on ${port}`);
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});
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