Add Podcast RSS feeds (#5487)

* Initial test implementation of Podcast RSS

This is a pretty simple implementation to add support for The Podcast Namespace in RSS -- instead of affecting the existing RSS implementation, this adds a new UI option.

I attempted to retain compatibility with the rest of the RSS feed implementation as much as possible and have created a temporary fork of the "pfeed" library to support this effort.

* Update to pfeed-podcast 1.2.2

* Initial test implementation of Podcast RSS

This is a pretty simple implementation to add support for The Podcast Namespace in RSS -- instead of affecting the existing RSS implementation, this adds a new UI option.

I attempted to retain compatibility with the rest of the RSS feed implementation as much as possible and have created a temporary fork of the "pfeed" library to support this effort.

* Update to pfeed-podcast 1.2.2

* Initial test implementation of Podcast RSS

This is a pretty simple implementation to add support for The Podcast Namespace in RSS -- instead of affecting the existing RSS implementation, this adds a new UI option.

I attempted to retain compatibility with the rest of the RSS feed implementation as much as possible and have created a temporary fork of the "pfeed" library to support this effort.

* Update to pfeed-podcast 1.2.2

* Add correct feed image to RSS channel

* Prefer HLS videos for podcast RSS

Remove video/stream titles, add optional height attribute to podcast RSS

* Prefix podcast RSS images with root server URL

* Add optional video query support to include captions

* Add transcripts & person images to podcast RSS feed

* Prefer webseed/webtorrent files over HLS fragmented mp4s

* Experimentally adding podcast fields to basic config page

* Add validation for new basic config fields

* Don't include "content" in podcast feed, use full description for "description"

* Initial test implementation of Podcast RSS

This is a pretty simple implementation to add support for The Podcast Namespace in RSS -- instead of affecting the existing RSS implementation, this adds a new UI option.

I attempted to retain compatibility with the rest of the RSS feed implementation as much as possible and have created a temporary fork of the "pfeed" library to support this effort.

* Update to pfeed-podcast 1.2.2

* Add correct feed image to RSS channel

* Prefer HLS videos for podcast RSS

Remove video/stream titles, add optional height attribute to podcast RSS

* Prefix podcast RSS images with root server URL

* Add optional video query support to include captions

* Add transcripts & person images to podcast RSS feed

* Prefer webseed/webtorrent files over HLS fragmented mp4s

* Experimentally adding podcast fields to basic config page

* Add validation for new basic config fields

* Don't include "content" in podcast feed, use full description for "description"

* Add medium/socialInteract to podcast RSS feeds. Use HTML for description

* Change base production image to bullseye, install prosody in image

* Add liveItem and trackers to Podcast RSS feeds

Remove height from alternateEnclosure, replaced with title.

* Clear Podcast RSS feed cache when live streams start/end

* Upgrade to Node 16

* Refactor clearCacheRoute to use ApiCache

* Remove unnecessary type hint

* Update dockerfile to node 16, install python-is-python2

* Use new file paths for captions/playlists

* Fix legacy videos in RSS after migration to object storage

* Improve method of identifying non-fragmented mp4s in podcast RSS feeds

* Don't include fragmented MP4s in podcast RSS feeds

* Add experimental support for podcast:categories on the podcast RSS item

* Fix undefined category when no videos exist

Allows for empty feeds to exist (important for feeds that might only go live)

* Add support for podcast:locked -- user has to opt in to show their email

* Use comma for podcast:categories delimiter

* Make cache clearing async

* Fix merge, temporarily test with pfeed-podcast

* Syntax changes

* Add EXT_MIMETYPE constants for captions

* Update & fix tests, fix enclosure mimetypes, remove admin email

* Add test for podacst:socialInteract

* Add filters hooks for podcast customTags

* Remove showdown, updated to pfeed-podcast 6.1.2

* Add 'action:api.live-video.state.updated' hook

* Avoid assigning undefined category to podcast feeds

* Remove nvmrc

* Remove comment

* Remove unused podcast config

* Remove more unused podcast config

* Fix MChannelAccountDefault type hint missed in merge

* Remove extra line

* Re-add newline in config

* Fix lint errors for isEmailPublic

* Fix thumbnails in podcast feeds

* Requested changes based on review

* Provide podcast rss 2.0 only on video channels

* Misc cleanup for a less messy PR

* Lint fixes

* Remove pfeed-podcast

* Add peertube version to new hooks

* Don't use query include, remove TODO

* Remove film medium hack

* Clear podcast rss cache before video/channel update hooks

* Clear podcast rss cache before video uploaded/deleted hooks

* Refactor podcast feed cache clearing

* Set correct person name from video channel

* Styling

* Fix tests

---------

Co-authored-by: Chocobozzz <me@florianbigard.com>

1 files changed, 24 insertions, 3 deletions

diff --git a/server/models/video/video-channel.ts b/server/models/video/video-channel.ts
index 0fb52827e..19dd681a7 100644
--- a/server/models/video/video-channel.ts
+++ b/server/models/video/video-channel.ts
@@ -1,5 +1,8 @@
 import { FindOptions, Includeable, literal, Op, QueryTypes, ScopeOptions, Transaction, WhereOptions } from 'sequelize'
 import {
+  AfterCreate,
+  AfterDestroy,
+  AfterUpdate,
   AllowNull,
   BeforeDestroy,
   BelongsTo,
@@ -18,7 +21,8 @@ import {
   UpdatedAt
 } from 'sequelize-typescript'
 import { CONFIG } from '@server/initializers/config'
-import { MAccountActor } from '@server/types/models'
+import { InternalEventEmitter } from '@server/lib/internal-event-emitter'
+import { MAccountHost } from '@server/types/models'
 import { forceNumber, pick } from '@shared/core-utils'
 import { AttributesOnly } from '@shared/typescript-utils'
 import { ActivityPubActor } from '../../../shared/models/activitypub'
@@ -36,6 +40,7 @@ import {
   MChannelAP,
   MChannelBannerAccountDefault,
   MChannelFormattable,
+  MChannelHost,
   MChannelSummaryFormattable
 } from '../../types/models/video'
 import { AccountModel, ScopeNames as AccountModelScopeNames, SummaryOptions as AccountSummaryOptions } from '../account/account'
@@ -416,6 +421,21 @@ export class VideoChannelModel extends Model<Partial<AttributesOnly<VideoChannel
   })
   VideoPlaylists: VideoPlaylistModel[]
 
+  @AfterCreate
+  static notifyCreate (channel: MChannel) {
+    InternalEventEmitter.Instance.emit('channel-created', { channel })
+  }
+
+  @AfterUpdate
+  static notifyUpdate (channel: MChannel) {
+    InternalEventEmitter.Instance.emit('channel-updated', { channel })
+  }
+
+  @AfterDestroy
+  static notifyDestroy (channel: MChannel) {
+    InternalEventEmitter.Instance.emit('channel-deleted', { channel })
+  }
+
   @BeforeDestroy
   static async sendDeleteIfOwned (instance: VideoChannelModel, options) {
     if (!instance.Actor) {
@@ -827,8 +847,9 @@ export class VideoChannelModel extends Model<Partial<AttributesOnly<VideoChannel
     })
   }
 
-  getLocalUrl (this: MAccountActor | MChannelActor) {
-    return WEBSERVER.URL + `/video-channels/` + this.Actor.preferredUsername
+  // Avoid error when running this method on MAccount... | MChannel...
+  getClientUrl (this: MAccountHost | MChannelHost) {
+    return WEBSERVER.URL + '/c/' + this.Actor.getIdentifier()
   }
 
   getDisplayName () {