Allow oembed to fetch unlisted videos

[github/Chocobozzz/PeerTube.git] / server / middlewares / validators / oembed.ts

diff --git a/server/middlewares/validators/oembed.ts b/server/middlewares/validators/oembed.ts
index 24ba5569dc9f1fd9f62a815bea870afe19ea0f3c..fc1a294e0898ef56cac18ef8970579996f9e3760 100644 (file)
--- a/server/middlewares/validators/oembed.ts
+++ b/server/middlewares/validators/oembed.ts
@@ -1,15 +1,33 @@
-import * as express from 'express'
+import express from 'express'
 import { query } from 'express-validator'
 import { join } from 'path'
+import { loadVideo } from '@server/lib/model-loaders'
+import { VideoPlaylistModel } from '@server/models/video/video-playlist'
+import { VideoPlaylistPrivacy, VideoPrivacy } from '@shared/models'
+import { HttpStatusCode } from '../../../shared/models/http/http-error-codes'
 import { isTestInstance } from '../../helpers/core-utils'
-import { isIdOrUUIDValid } from '../../helpers/custom-validators/misc'
+import { isIdOrUUIDValid, isUUIDValid, toCompleteUUID } from '../../helpers/custom-validators/misc'
 import { logger } from '../../helpers/logger'
-import { areValidationErrors } from './utils'
 import { WEBSERVER } from '../../initializers/constants'
-import { doesVideoExist } from '../../helpers/middlewares'
+import { areValidationErrors } from './shared'
+
+const playlistPaths = [
+  join('videos', 'watch', 'playlist'),
+  join('w', 'p')
+]
+
+const videoPaths = [
+  join('videos', 'watch'),
+  'w'
+]
+
+function buildUrls (paths: string[]) {
+  return paths.map(p => WEBSERVER.SCHEME + '://' + join(WEBSERVER.HOST, p) + '/')
+}
+
+const startPlaylistURLs = buildUrls(playlistPaths)
+const startVideoURLs = buildUrls(videoPaths)
 
-const urlShouldStartWith = WEBSERVER.SCHEME + '://' + join(WEBSERVER.HOST, 'videos', 'watch') + '/'
-const videoWatchRegex = new RegExp('([^/]+)$')
 const isURLOptions = {
   require_host: true,
   require_tld: true
@@ -32,30 +50,101 @@ const oembedValidator = [
     if (areValidationErrors(req, res)) return
 
     if (req.query.format !== undefined && req.query.format !== 'json') {
-      return res.status(501)
-                .json({ error: 'Requested format is not implemented on server.' })
-                .end()
+      return res.fail({
+        status: HttpStatusCode.NOT_IMPLEMENTED_501,
+        message: 'Requested format is not implemented on server.',
+        data: {
+          format: req.query.format
+        }
+      })
+    }
+
+    const url = req.query.url as string
+
+    let urlPath: string
+
+    try {
+      urlPath = new URL(url).pathname
+    } catch (err) {
+      return res.fail({
+        status: HttpStatusCode.BAD_REQUEST_400,
+        message: err.message,
+        data: {
+          url
+        }
+      })
+    }
+
+    const isPlaylist = startPlaylistURLs.some(u => url.startsWith(u))
+    const isVideo = isPlaylist ? false : startVideoURLs.some(u => url.startsWith(u))
+
+    const startIsOk = isVideo || isPlaylist
+
+    const parts = urlPath.split('/')
+
+    if (startIsOk === false || parts.length === 0) {
+      return res.fail({
+        status: HttpStatusCode.BAD_REQUEST_400,
+        message: 'Invalid url.',
+        data: {
+          url
+        }
+      })
+    }
+
+    const elementId = toCompleteUUID(parts.pop())
+    if (isIdOrUUIDValid(elementId) === false) {
+      return res.fail({ message: 'Invalid video or playlist id.' })
     }
 
-    const startIsOk = req.query.url.startsWith(urlShouldStartWith)
-    const matches = videoWatchRegex.exec(req.query.url)
-    if (startIsOk === false || matches === null) {
-      return res.status(400)
-                .json({ error: 'Invalid url.' })
-                .end()
+    if (isVideo) {
+      const video = await loadVideo(elementId, 'all')
+
+      if (!video) {
+        return res.fail({
+          status: HttpStatusCode.NOT_FOUND_404,
+          message: 'Video not found'
+        })
+      }
+
+      if (
+        video.privacy === VideoPrivacy.PUBLIC ||
+        (video.privacy === VideoPrivacy.UNLISTED && isUUIDValid(elementId) === true)
+      ) {
+        res.locals.videoAll = video
+        return next()
+      }
+
+      return res.fail({
+        status: HttpStatusCode.FORBIDDEN_403,
+        message: 'Video is not publicly available'
+      })
     }
 
-    const videoId = matches[1]
-    if (isIdOrUUIDValid(videoId) === false) {
-      return res.status(400)
-                .json({ error: 'Invalid video id.' })
-                .end()
+    // Is playlist
+
+    const videoPlaylist = await VideoPlaylistModel.loadWithAccountAndChannelSummary(elementId, undefined)
+    if (!videoPlaylist) {
+      return res.fail({
+        status: HttpStatusCode.NOT_FOUND_404,
+        message: 'Video playlist not found'
+      })
     }
 
-    if (!await doesVideoExist(videoId, res)) return
+    if (
+      videoPlaylist.privacy === VideoPlaylistPrivacy.PUBLIC ||
+      (videoPlaylist.privacy === VideoPlaylistPrivacy.UNLISTED && isUUIDValid(elementId))
+    ) {
+      res.locals.videoPlaylistSummary = videoPlaylist
+      return next()
+    }
 
-    return next()
+    return res.fail({
+      status: HttpStatusCode.FORBIDDEN_403,
+      message: 'Playlist is not public'
+    })
   }
+
 ]
 
 // ---------------------------------------------------------------------------