134 lines
2.8 KiB
TypeScript
134 lines
2.8 KiB
TypeScript
/**
|
|
* File Server
|
|
*/
|
|
|
|
import * as fs from 'fs';
|
|
import * as express from 'express';
|
|
import * as bodyParser from 'body-parser';
|
|
import * as cors from 'cors';
|
|
import * as mongodb from 'mongodb';
|
|
import * as gm from 'gm';
|
|
|
|
import File from '../api/models/drive-file';
|
|
|
|
/**
|
|
* Init app
|
|
*/
|
|
const app = express();
|
|
|
|
app.disable('x-powered-by');
|
|
app.locals.cache = true;
|
|
app.use(bodyParser.urlencoded({ extended: true }));
|
|
app.use(cors());
|
|
|
|
/**
|
|
* Statics
|
|
*/
|
|
app.use('/assets', express.static(__dirname + '/assets', {
|
|
maxAge: 1000 * 60 * 60 * 24 * 365 // 一年
|
|
}));
|
|
|
|
app.get('/', (req, res) => {
|
|
res.send('yee haw');
|
|
});
|
|
|
|
app.get('/default-avatar.jpg', (req, res) => {
|
|
const file = fs.readFileSync(__dirname + '/assets/avatar.jpg');
|
|
send(file, 'image/jpeg', req, res);
|
|
});
|
|
|
|
app.get('/app-default.jpg', (req, res) => {
|
|
const file = fs.readFileSync(__dirname + '/assets/dummy.png');
|
|
send(file, 'image/png', req, res);
|
|
});
|
|
|
|
async function raw(data: Buffer, type: string, download: boolean, res: express.Response): Promise<any> {
|
|
res.header('Content-Type', type);
|
|
|
|
if (download) {
|
|
res.header('Content-Disposition', 'attachment');
|
|
}
|
|
|
|
res.send(data);
|
|
}
|
|
|
|
async function thumbnail(data: Buffer, type: string, resize: number, res: express.Response): Promise<any> {
|
|
if (!/^image\/.*$/.test(type)) {
|
|
data = fs.readFileSync(__dirname + '/assets/dummy.png');
|
|
}
|
|
|
|
let g = gm(data);
|
|
|
|
if (resize) {
|
|
g = g.resize(resize, resize);
|
|
}
|
|
|
|
g
|
|
.compress('jpeg')
|
|
.quality(80)
|
|
.toBuffer('jpeg', (err, img) => {
|
|
if (err !== undefined && err !== null) {
|
|
console.error(err);
|
|
res.sendStatus(500);
|
|
return;
|
|
}
|
|
|
|
res.header('Content-Type', 'image/jpeg');
|
|
res.send(img);
|
|
});
|
|
}
|
|
|
|
function send(data: Buffer, type: string, req: express.Request, res: express.Response): void {
|
|
if (req.query.thumbnail !== undefined) {
|
|
thumbnail(data, type, req.query.size, res);
|
|
} else {
|
|
raw(data, type, req.query.download !== undefined, res);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Routing
|
|
*/
|
|
|
|
app.get('/:id', async (req, res) => {
|
|
// Validate id
|
|
if (!mongodb.ObjectID.isValid(req.params.id)) {
|
|
res.status(400).send('incorrect id');
|
|
return;
|
|
}
|
|
|
|
const file = await File.findOne({_id: new mongodb.ObjectID(req.params.id)});
|
|
|
|
if (file == null) {
|
|
res.status(404).sendFile(__dirname + '/assets/dummy.png');
|
|
return;
|
|
} else if (file.data == null) {
|
|
res.sendStatus(400);
|
|
return;
|
|
}
|
|
|
|
send(file.data.buffer, file.type, req, res);
|
|
});
|
|
|
|
app.get('/:id/:name', async (req, res) => {
|
|
// Validate id
|
|
if (!mongodb.ObjectID.isValid(req.params.id)) {
|
|
res.status(400).send('incorrect id');
|
|
return;
|
|
}
|
|
|
|
const file = await File.findOne({_id: new mongodb.ObjectID(req.params.id)});
|
|
|
|
if (file == null) {
|
|
res.status(404).sendFile(__dirname + '/assets/dummy.png');
|
|
return;
|
|
} else if (file.data == null) {
|
|
res.sendStatus(400);
|
|
return;
|
|
}
|
|
|
|
send(file.data.buffer, file.type, req, res);
|
|
});
|
|
|
|
module.exports = app;
|