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1 | import * as express from 'express' | |
2 | import { query } from 'express-validator/check' | |
3 | import { join } from 'path' | |
4 | import { isTestInstance } from '../../helpers/core-utils' | |
5 | import { isIdOrUUIDValid } from '../../helpers/custom-validators/misc' | |
6 | import { isVideoExist } from '../../helpers/custom-validators/videos' | |
7 | import { logger } from '../../helpers/logger' | |
8 | import { CONFIG } from '../../initializers' | |
9 | import { areValidationErrors } from './utils' | |
10 | ||
11 | const urlShouldStartWith = CONFIG.WEBSERVER.SCHEME + '://' + join(CONFIG.WEBSERVER.HOST, 'videos', 'watch') + '/' | |
12 | const videoWatchRegex = new RegExp('([^/]+)$') | |
13 | const isURLOptions = { | |
14 | require_host: true, | |
15 | require_tld: true | |
16 | } | |
17 | ||
18 | // We validate 'localhost', so we don't have the top level domain | |
19 | if (isTestInstance()) { | |
20 | isURLOptions.require_tld = false | |
21 | } | |
22 | ||
23 | const oembedValidator = [ | |
24 | query('url').isURL(isURLOptions).withMessage('Should have a valid url'), | |
25 | query('maxwidth').optional().isInt().withMessage('Should have a valid max width'), | |
26 | query('maxheight').optional().isInt().withMessage('Should have a valid max height'), | |
27 | query('format').optional().isIn([ 'xml', 'json' ]).withMessage('Should have a valid format'), | |
28 | ||
29 | async (req: express.Request, res: express.Response, next: express.NextFunction) => { | |
30 | logger.debug('Checking oembed parameters', { parameters: req.query }) | |
31 | ||
32 | if (areValidationErrors(req, res)) return | |
33 | ||
34 | if (req.query.format !== undefined && req.query.format !== 'json') { | |
35 | return res.status(501) | |
36 | .json({ error: 'Requested format is not implemented on server.' }) | |
37 | .end() | |
38 | } | |
39 | ||
40 | const startIsOk = req.query.url.startsWith(urlShouldStartWith) | |
41 | const matches = videoWatchRegex.exec(req.query.url) | |
42 | if (startIsOk === false || matches === null) { | |
43 | return res.status(400) | |
44 | .json({ error: 'Invalid url.' }) | |
45 | .end() | |
46 | } | |
47 | ||
48 | const videoId = matches[1] | |
49 | if (isIdOrUUIDValid(videoId) === false) { | |
50 | return res.status(400) | |
51 | .json({ error: 'Invalid video id.' }) | |
52 | .end() | |
53 | } | |
54 | ||
55 | if (!await isVideoExist(videoId, res)) return | |
56 | ||
57 | return next() | |
58 | } | |
59 | ] | |
60 | ||
61 | // --------------------------------------------------------------------------- | |
62 | ||
63 | export { | |
64 | oembedValidator | |
65 | } |