add filter:api.video-playlist.videos.list.* hooks

closes #4775

server/controllers/api/video-playlist.ts

@@ -453,13 +453,19 @@ async function getVideoPlaylistVideos (req: express.Request, res: express.Respon
   const user = res.locals.oauth ? res.locals.oauth.token.User : undefined
   const server = await getServerActor()
 
-  const resultList = await VideoPlaylistElementModel.listForApi({
+  const apiOptions = await Hooks.wrapObject({
     start: req.query.start,
     count: req.query.count,
     videoPlaylistId: videoPlaylistInstance.id,
     serverAccount: server.Account,
     user
-  })
+  }, 'filter:api.video-playlist.videos.list.params')
+
+  const resultList = await Hooks.wrapPromiseFun(
+    VideoPlaylistElementModel.listForApi,
+    apiOptions,
+    'filter:api.video-playlist.videos.list.result'
+  )
 
   const options = {
     displayNSFW: buildNSFWFilter(res, req.query.nsfw),

server/tests/fixtures/peertube-plugin-test/main.js

@@ -44,6 +44,16 @@ async function register ({ registerHook, registerSetting, settingsManager, stora
     handler: obj => addToTotal(obj)
   })
 
+  registerHook({
+    target: 'filter:api.video-playlist.videos.list.params',
+    handler: obj => addToCount(obj)
+  })
+
+  registerHook({
+    target: 'filter:api.video-playlist.videos.list.result',
+    handler: obj => addToTotal(obj)
+  })
+
   registerHook({
     target: 'filter:api.accounts.videos.list.params',
     handler: obj => addToCount(obj)

server/tests/plugins/filter-hooks.ts

@@ -22,6 +22,7 @@ describe('Test plugin filter hooks', function () {
   let servers: PeerTubeServer[]
   let videoUUID: string
   let threadId: number
+  let videoPlaylistUUID: string
 
   before(async function () {
     this.timeout(60000)
@@ -33,9 +34,20 @@ describe('Test plugin filter hooks', function () {
 
     await servers[0].plugins.install({ path: PluginsCommand.getPluginTestPath() })
     await servers[0].plugins.install({ path: PluginsCommand.getPluginTestPath('-filter-translations') })
+    {
+      ({ uuid: videoPlaylistUUID } = await servers[0].playlists.create({
+        attributes: {
+          displayName: 'my super playlist',
+          privacy: VideoPlaylistPrivacy.PUBLIC,
+          description: 'my super description',
+          videoChannelId: servers[0].store.channel.id
+        }
+      }))
+    }
 
     for (let i = 0; i < 10; i++) {
-      await servers[0].videos.upload({ attributes: { name: 'default video ' + i } })
+      const video = await servers[0].videos.upload({ attributes: { name: 'default video ' + i } })
+      await servers[0].playlists.addElement({ playlistId: videoPlaylistUUID, attributes: { videoId: video.id } })
     }
 
     const { data } = await servers[0].videos.list()
@@ -69,6 +81,26 @@ describe('Test plugin filter hooks', function () {
     expect(total).to.equal(11)
   })
 
+  it('Should run filter:api.video-playlist.videos.list.params', async function () {
+    const { data } = await servers[0].playlists.listVideos({
+      count: 2,
+      playlistId: videoPlaylistUUID
+    })
+
+    // 1 plugin do +1 to the count parameter
+    expect(data).to.have.lengthOf(3)
+  })
+
+  it('Should run filter:api.video-playlist.videos.list.result', async function () {
+    const { total } = await servers[0].playlists.listVideos({
+      count: 0,
+      playlistId: videoPlaylistUUID
+    })
+
+    // Plugin do +1 to the total result
+    expect(total).to.equal(11)
+  })
+
   it('Should run filter:api.accounts.videos.list.params', async function () {
     const { data } = await servers[0].videos.listByAccount({ handle: 'root', start: 0, count: 2 })
 

shared/models/plugins/server/server-hook.model.ts

@@ -6,6 +6,11 @@ export const serverFilterHookObject = {
   'filter:api.videos.list.params': true,
   'filter:api.videos.list.result': true,
 
+  // Filter params/result used to list a video playlists videos
+  // for the REST API
+  'filter:api.video-playlist.videos.list.params': true,
+  'filter:api.video-playlist.videos.list.result': true,
+
   // Filter params/result used to list account videos for the REST API
   'filter:api.accounts.videos.list.params': true,
   'filter:api.accounts.videos.list.result': true,