56 lines
1.3 KiB
TypeScript
56 lines
1.3 KiB
TypeScript
import * as express from 'express';
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import { Endpoint } from './endpoints';
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import authenticate from './authenticate';
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import { IAuthContext } from './authenticate';
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import _reply from './reply';
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import limitter from './limitter';
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export default async (endpoint: Endpoint, req: express.Request, res: express.Response) => {
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const reply = _reply.bind(null, res);
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let ctx: IAuthContext;
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// Authentication
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try {
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ctx = await authenticate(req);
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} catch (e) {
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return reply(403, 'AUTHENTICATION_FAILED');
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}
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if (endpoint.secure && !ctx.isSecure) {
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return reply(403, 'ACCESS_DENIED');
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}
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if (endpoint.withCredential && ctx.user == null) {
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return reply(401, 'PLZ_SIGNIN');
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}
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if (ctx.app && endpoint.kind) {
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if (!ctx.app.permission.some(p => p === endpoint.kind)) {
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return reply(403, 'ACCESS_DENIED');
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}
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}
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if (endpoint.withCredential && endpoint.limit) {
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try {
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await limitter(endpoint, ctx); // Rate limit
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} catch (e) {
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// drop request if limit exceeded
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return reply(429);
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}
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}
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let exec = require(`${__dirname}/endpoints/${endpoint.name}`);
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if (endpoint.withFile) {
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exec = exec.bind(null, req.file);
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}
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// API invoking
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try {
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const res = await exec(req.body, ctx.user, ctx.app, ctx.isSecure);
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reply(res);
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} catch (e) {
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reply(400, e);
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}
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};
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