Merge branch 'develop' into pr/1285

20 files changed, 182 insertions, 181 deletions

diff --git a/server/helpers/activitypub.ts b/server/helpers/activitypub.ts
index 79b76fa0b..62d78373e 100644
--- a/server/helpers/activitypub.ts
+++ b/server/helpers/activitypub.ts
@@ -15,7 +15,7 @@ function activityPubContextify <T> (data: T) {
       'https://w3id.org/security/v1',
       {
         RsaSignature2017: 'https://w3id.org/security#RsaSignature2017',
-        pt: 'https://joinpeertube.org/ns',
+        pt: 'https://joinpeertube.org/ns#',
         sc: 'http://schema.org#',
         Hashtag: 'as:Hashtag',
         uuid: 'sc:identifier',
@@ -29,10 +29,12 @@ function activityPubContextify <T> (data: T) {
         size: 'sc:Number',
         fps: 'sc:Number',
         commentsEnabled: 'sc:Boolean',
+        downloadEnabled: 'sc:Boolean',
         waitTranscoding: 'sc:Boolean',
         expires: 'sc:expires',
         support: 'sc:Text',
-        CacheFile: 'pt:CacheFile'
+        CacheFile: 'pt:CacheFile',
+        Infohash: 'pt:Infohash'
       },
       {
         likes: {
@@ -106,7 +108,7 @@ function buildSignedActivity (byActor: ActorModel, data: Object) {
   return signJsonLDObject(byActor, activity) as Promise<Activity>
 }
 
-function getAPUrl (activity: string | { id: string }) {
+function getAPId (activity: string | { id: string }) {
   if (typeof activity === 'string') return activity
 
   return activity.id
@@ -123,7 +125,7 @@ function checkUrlsSameHost (url1: string, url2: string) {
 
 export {
   checkUrlsSameHost,
-  getAPUrl,
+  getAPId,
   activityPubContextify,
   activityPubCollectionPagination,
   buildSignedActivity
diff --git a/server/helpers/audit-logger.ts b/server/helpers/audit-logger.ts
index 00311fce1..a121f0b8a 100644
--- a/server/helpers/audit-logger.ts
+++ b/server/helpers/audit-logger.ts
@@ -117,7 +117,8 @@ const videoKeysToKeep = [
   'channel-uuid',
   'channel-name',
   'support',
-  'commentsEnabled'
+  'commentsEnabled',
+  'downloadEnabled'
 ]
 class VideoAuditView extends EntityAuditView {
   constructor (private video: VideoDetails) {
diff --git a/server/helpers/core-utils.ts b/server/helpers/core-utils.ts
index 3fb824e36..f38b82d97 100644
--- a/server/helpers/core-utils.ts
+++ b/server/helpers/core-utils.ts
@@ -193,10 +193,14 @@ function peertubeTruncate (str: string, maxLength: number) {
   return truncate(str, options)
 }
 
-function sha256 (str: string, encoding: HexBase64Latin1Encoding = 'hex') {
+function sha256 (str: string | Buffer, encoding: HexBase64Latin1Encoding = 'hex') {
   return createHash('sha256').update(str).digest(encoding)
 }
 
+function sha1 (str: string | Buffer, encoding: HexBase64Latin1Encoding = 'hex') {
+  return createHash('sha1').update(str).digest(encoding)
+}
+
 function promisify0<A> (func: (cb: (err: any, result: A) => void) => void): () => Promise<A> {
   return function promisified (): Promise<A> {
     return new Promise<A>((resolve: (arg: A) => void, reject: (err: any) => void) => {
@@ -262,7 +266,9 @@ export {
   sanitizeHost,
   buildPath,
   peertubeTruncate,
+
   sha256,
+  sha1,
 
   promisify0,
   promisify1,
diff --git a/server/helpers/custom-validators/activitypub/activity.ts b/server/helpers/custom-validators/activitypub/activity.ts
index 2562ead9b..b24590d9d 100644
--- a/server/helpers/custom-validators/activitypub/activity.ts
+++ b/server/helpers/custom-validators/activitypub/activity.ts
@@ -1,26 +1,14 @@
 import * as validator from 'validator'
 import { Activity, ActivityType } from '../../../../shared/models/activitypub'
-import {
-  isActorAcceptActivityValid,
-  isActorDeleteActivityValid,
-  isActorFollowActivityValid,
-  isActorRejectActivityValid,
-  isActorUpdateActivityValid
-} from './actor'
-import { isAnnounceActivityValid } from './announce'
-import { isActivityPubUrlValid } from './misc'
-import { isDislikeActivityValid, isLikeActivityValid } from './rate'
-import { isUndoActivityValid } from './undo'
-import { isVideoCommentCreateActivityValid, isVideoCommentDeleteActivityValid } from './video-comments'
-import {
-  isVideoFlagValid,
-  isVideoTorrentDeleteActivityValid,
-  sanitizeAndCheckVideoTorrentCreateActivity,
-  sanitizeAndCheckVideoTorrentUpdateActivity
-} from './videos'
+import { sanitizeAndCheckActorObject } from './actor'
+import { isActivityPubUrlValid, isBaseActivityValid, isObjectValid } from './misc'
+import { isDislikeActivityValid } from './rate'
+import { sanitizeAndCheckVideoCommentObject } from './video-comments'
+import { sanitizeAndCheckVideoTorrentObject } from './videos'
 import { isViewActivityValid } from './view'
 import { exists } from '../misc'
-import { isCacheFileCreateActivityValid, isCacheFileUpdateActivityValid } from './cache-file'
+import { isCacheFileObjectValid } from './cache-file'
+import { isFlagActivityValid } from './flag'
 
 function isRootActivityValid (activity: any) {
   return Array.isArray(activity['@context']) && (
@@ -46,7 +34,10 @@ const activityCheckers: { [ P in ActivityType ]: (activity: Activity) => boolean
   Reject: checkRejectActivity,
   Announce: checkAnnounceActivity,
   Undo: checkUndoActivity,
-  Like: checkLikeActivity
+  Like: checkLikeActivity,
+  View: checkViewActivity,
+  Flag: checkFlagActivity,
+  Dislike: checkDislikeActivity
 }
 
 function isActivityValid (activity: any) {
@@ -66,47 +57,79 @@ export {
 
 // ---------------------------------------------------------------------------
 
+function checkViewActivity (activity: any) {
+  return isBaseActivityValid(activity, 'View') &&
+    isViewActivityValid(activity)
+}
+
+function checkFlagActivity (activity: any) {
+  return isBaseActivityValid(activity, 'Flag') &&
+    isFlagActivityValid(activity)
+}
+
+function checkDislikeActivity (activity: any) {
+  return isBaseActivityValid(activity, 'Dislike') &&
+    isDislikeActivityValid(activity)
+}
+
 function checkCreateActivity (activity: any) {
-  return isViewActivityValid(activity) ||
-    isDislikeActivityValid(activity) ||
-    sanitizeAndCheckVideoTorrentCreateActivity(activity) ||
-    isVideoFlagValid(activity) ||
-    isVideoCommentCreateActivityValid(activity) ||
-    isCacheFileCreateActivityValid(activity)
+  return isBaseActivityValid(activity, 'Create') &&
+    (
+      isViewActivityValid(activity.object) ||
+      isDislikeActivityValid(activity.object) ||
+      isFlagActivityValid(activity.object) ||
+
+      isCacheFileObjectValid(activity.object) ||
+      sanitizeAndCheckVideoCommentObject(activity.object) ||
+      sanitizeAndCheckVideoTorrentObject(activity.object)
+    )
 }
 
 function checkUpdateActivity (activity: any) {
-  return isCacheFileUpdateActivityValid(activity) ||
-    sanitizeAndCheckVideoTorrentUpdateActivity(activity) ||
-    isActorUpdateActivityValid(activity)
+  return isBaseActivityValid(activity, 'Update') &&
+    (
+      isCacheFileObjectValid(activity.object) ||
+      sanitizeAndCheckVideoTorrentObject(activity.object) ||
+      sanitizeAndCheckActorObject(activity.object)
+    )
 }
 
 function checkDeleteActivity (activity: any) {
-  return isVideoTorrentDeleteActivityValid(activity) ||
-    isActorDeleteActivityValid(activity) ||
-    isVideoCommentDeleteActivityValid(activity)
+  // We don't really check objects
+  return isBaseActivityValid(activity, 'Delete') &&
+    isObjectValid(activity.object)
 }
 
 function checkFollowActivity (activity: any) {
-  return isActorFollowActivityValid(activity)
+  return isBaseActivityValid(activity, 'Follow') &&
+    isObjectValid(activity.object)
 }
 
 function checkAcceptActivity (activity: any) {
-  return isActorAcceptActivityValid(activity)
+  return isBaseActivityValid(activity, 'Accept')
 }
 
 function checkRejectActivity (activity: any) {
-  return isActorRejectActivityValid(activity)
+  return isBaseActivityValid(activity, 'Reject')
 }
 
 function checkAnnounceActivity (activity: any) {
-  return isAnnounceActivityValid(activity)
+  return isBaseActivityValid(activity, 'Announce') &&
+    isObjectValid(activity.object)
 }
 
 function checkUndoActivity (activity: any) {
-  return isUndoActivityValid(activity)
+  return isBaseActivityValid(activity, 'Undo') &&
+    (
+      checkFollowActivity(activity.object) ||
+      checkLikeActivity(activity.object) ||
+      checkDislikeActivity(activity.object) ||
+      checkAnnounceActivity(activity.object) ||
+      checkCreateActivity(activity.object)
+    )
 }
 
 function checkLikeActivity (activity: any) {
-  return isLikeActivityValid(activity)
+  return isBaseActivityValid(activity, 'Like') &&
+    isObjectValid(activity.object)
 }
diff --git a/server/helpers/custom-validators/activitypub/actor.ts b/server/helpers/custom-validators/activitypub/actor.ts
index 070632a20..c05f60f14 100644
--- a/server/helpers/custom-validators/activitypub/actor.ts
+++ b/server/helpers/custom-validators/activitypub/actor.ts
@@ -73,24 +73,10 @@ function isActorDeleteActivityValid (activity: any) {
   return isBaseActivityValid(activity, 'Delete')
 }
 
-function isActorFollowActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Follow') &&
-    isActivityPubUrlValid(activity.object)
-}
-
-function isActorAcceptActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Accept')
-}
-
-function isActorRejectActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Reject')
-}
-
-function isActorUpdateActivityValid (activity: any) {
-  normalizeActor(activity.object)
+function sanitizeAndCheckActorObject (object: any) {
+  normalizeActor(object)
 
-  return isBaseActivityValid(activity, 'Update') &&
-    isActorObjectValid(activity.object)
+  return isActorObjectValid(object)
 }
 
 function normalizeActor (actor: any) {
@@ -139,10 +125,7 @@ export {
   isActorObjectValid,
   isActorFollowingCountValid,
   isActorFollowersCountValid,
-  isActorFollowActivityValid,
-  isActorAcceptActivityValid,
-  isActorRejectActivityValid,
   isActorDeleteActivityValid,
-  isActorUpdateActivityValid,
+  sanitizeAndCheckActorObject,
   isValidActorHandle
 }
diff --git a/server/helpers/custom-validators/activitypub/announce.ts b/server/helpers/custom-validators/activitypub/announce.ts
deleted file mode 100644
index 0519c6026..000000000
--- a/server/helpers/custom-validators/activitypub/announce.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
-
-function isAnnounceActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Announce') &&
-    (
-      isActivityPubUrlValid(activity.object) ||
-      (activity.object && isActivityPubUrlValid(activity.object.id))
-    )
-}
-
-export {
-  isAnnounceActivityValid
-}
diff --git a/server/helpers/custom-validators/activitypub/cache-file.ts b/server/helpers/custom-validators/activitypub/cache-file.ts
index bd70934c8..21d5c53ca 100644
--- a/server/helpers/custom-validators/activitypub/cache-file.ts
+++ b/server/helpers/custom-validators/activitypub/cache-file.ts
@@ -1,28 +1,26 @@
-import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
+import { isActivityPubUrlValid } from './misc'
 import { isRemoteVideoUrlValid } from './videos'
-import { isDateValid, exists } from '../misc'
+import { exists, isDateValid } from '../misc'
 import { CacheFileObject } from '../../../../shared/models/activitypub/objects'
 
-function isCacheFileCreateActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Create') &&
-    isCacheFileObjectValid(activity.object)
-}
-
-function isCacheFileUpdateActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Update') &&
-    isCacheFileObjectValid(activity.object)
-}
-
 function isCacheFileObjectValid (object: CacheFileObject) {
   return exists(object) &&
     object.type === 'CacheFile' &&
     isDateValid(object.expires) &&
     isActivityPubUrlValid(object.object) &&
-    isRemoteVideoUrlValid(object.url)
+    (isRemoteVideoUrlValid(object.url) || isPlaylistRedundancyUrlValid(object.url))
 }
 
+// ---------------------------------------------------------------------------
+
 export {
-  isCacheFileUpdateActivityValid,
-  isCacheFileCreateActivityValid,
   isCacheFileObjectValid
 }
+
+// ---------------------------------------------------------------------------
+
+function isPlaylistRedundancyUrlValid (url: any) {
+  return url.type === 'Link' &&
+    (url.mediaType || url.mimeType) === 'application/x-mpegURL' &&
+    isActivityPubUrlValid(url.href)
+}
diff --git a/server/helpers/custom-validators/activitypub/flag.ts b/server/helpers/custom-validators/activitypub/flag.ts
new file mode 100644
index 000000000..6452e297c
--- /dev/null
+++ b/server/helpers/custom-validators/activitypub/flag.ts
@@ -0,0 +1,14 @@
+import { isActivityPubUrlValid } from './misc'
+import { isVideoAbuseReasonValid } from '../video-abuses'
+
+function isFlagActivityValid (activity: any) {
+  return activity.type === 'Flag' &&
+    isVideoAbuseReasonValid(activity.content) &&
+    isActivityPubUrlValid(activity.object)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isFlagActivityValid
+}
diff --git a/server/helpers/custom-validators/activitypub/misc.ts b/server/helpers/custom-validators/activitypub/misc.ts
index 4e2c57f04..f1762d11c 100644
--- a/server/helpers/custom-validators/activitypub/misc.ts
+++ b/server/helpers/custom-validators/activitypub/misc.ts
@@ -28,15 +28,20 @@ function isBaseActivityValid (activity: any, type: string) {
   return (activity['@context'] === undefined || Array.isArray(activity['@context'])) &&
     activity.type === type &&
     isActivityPubUrlValid(activity.id) &&
-    exists(activity.actor) &&
-    (isActivityPubUrlValid(activity.actor) || isActivityPubUrlValid(activity.actor.id)) &&
-    (
-      activity.to === undefined ||
-      (Array.isArray(activity.to) && activity.to.every(t => isActivityPubUrlValid(t)))
-    ) &&
+    isObjectValid(activity.actor) &&
+    isUrlCollectionValid(activity.to) &&
+    isUrlCollectionValid(activity.cc)
+}
+
+function isUrlCollectionValid (collection: any) {
+  return collection === undefined ||
+    (Array.isArray(collection) && collection.every(t => isActivityPubUrlValid(t)))
+}
+
+function isObjectValid (object: any) {
+  return exists(object) &&
     (
-      activity.cc === undefined ||
-      (Array.isArray(activity.cc) && activity.cc.every(t => isActivityPubUrlValid(t)))
+      isActivityPubUrlValid(object) || isActivityPubUrlValid(object.id)
     )
 }
 
@@ -57,5 +62,6 @@ export {
   isUrlValid,
   isActivityPubUrlValid,
   isBaseActivityValid,
-  setValidAttributedTo
+  setValidAttributedTo,
+  isObjectValid
 }
diff --git a/server/helpers/custom-validators/activitypub/rate.ts b/server/helpers/custom-validators/activitypub/rate.ts
index e70bd94b8..ba68e8074 100644
--- a/server/helpers/custom-validators/activitypub/rate.ts
+++ b/server/helpers/custom-validators/activitypub/rate.ts
@@ -1,20 +1,13 @@
-import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
-
-function isLikeActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Like') &&
-    isActivityPubUrlValid(activity.object)
-}
+import { isActivityPubUrlValid, isObjectValid } from './misc'
 
 function isDislikeActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Create') &&
-    activity.object.type === 'Dislike' &&
-    isActivityPubUrlValid(activity.object.actor) &&
-    isActivityPubUrlValid(activity.object.object)
+  return activity.type === 'Dislike' &&
+    isActivityPubUrlValid(activity.actor) &&
+    isObjectValid(activity.object)
 }
 
 // ---------------------------------------------------------------------------
 
 export {
-  isLikeActivityValid,
   isDislikeActivityValid
 }
diff --git a/server/helpers/custom-validators/activitypub/undo.ts b/server/helpers/custom-validators/activitypub/undo.ts
deleted file mode 100644
index 578035893..000000000
--- a/server/helpers/custom-validators/activitypub/undo.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import { isActorFollowActivityValid } from './actor'
-import { isBaseActivityValid } from './misc'
-import { isDislikeActivityValid, isLikeActivityValid } from './rate'
-import { isAnnounceActivityValid } from './announce'
-import { isCacheFileCreateActivityValid } from './cache-file'
-
-function isUndoActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Undo') &&
-    (
-      isActorFollowActivityValid(activity.object) ||
-      isLikeActivityValid(activity.object) ||
-      isDislikeActivityValid(activity.object) ||
-      isAnnounceActivityValid(activity.object) ||
-      isCacheFileCreateActivityValid(activity.object)
-    )
-}
-
-export {
-  isUndoActivityValid
-}
diff --git a/server/helpers/custom-validators/activitypub/video-comments.ts b/server/helpers/custom-validators/activitypub/video-comments.ts
index 051c4565a..0415db21c 100644
--- a/server/helpers/custom-validators/activitypub/video-comments.ts
+++ b/server/helpers/custom-validators/activitypub/video-comments.ts
@@ -3,11 +3,6 @@ import { ACTIVITY_PUB, CONSTRAINTS_FIELDS } from '../../../initializers'
 import { exists, isArray, isDateValid } from '../misc'
 import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
 
-function isVideoCommentCreateActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Create') &&
-    sanitizeAndCheckVideoCommentObject(activity.object)
-}
-
 function sanitizeAndCheckVideoCommentObject (comment: any) {
   if (!comment || comment.type !== 'Note') return false
 
@@ -25,15 +20,9 @@ function sanitizeAndCheckVideoCommentObject (comment: any) {
     ) // Only accept public comments
 }
 
-function isVideoCommentDeleteActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Delete')
-}
-
 // ---------------------------------------------------------------------------
 
 export {
-  isVideoCommentCreateActivityValid,
-  isVideoCommentDeleteActivityValid,
   sanitizeAndCheckVideoCommentObject
 }
 
diff --git a/server/helpers/custom-validators/activitypub/videos.ts b/server/helpers/custom-validators/activitypub/videos.ts
index 95fe824b9..53ad0588d 100644
--- a/server/helpers/custom-validators/activitypub/videos.ts
+++ b/server/helpers/custom-validators/activitypub/videos.ts
@@ -1,7 +1,7 @@
 import * as validator from 'validator'
 import { ACTIVITY_PUB, CONSTRAINTS_FIELDS } from '../../../initializers'
 import { peertubeTruncate } from '../../core-utils'
-import { exists, isBooleanValid, isDateValid, isUUIDValid } from '../misc'
+import { exists, isArray, isBooleanValid, isDateValid, isUUIDValid } from '../misc'
 import {
   isVideoDurationValid,
   isVideoNameValid,
@@ -12,29 +12,12 @@ import {
 } from '../videos'
 import { isActivityPubUrlValid, isBaseActivityValid, setValidAttributedTo } from './misc'
 import { VideoState } from '../../../../shared/models/videos'
-import { isVideoAbuseReasonValid } from '../video-abuses'
-
-function sanitizeAndCheckVideoTorrentCreateActivity (activity: any) {
-  return isBaseActivityValid(activity, 'Create') &&
-    sanitizeAndCheckVideoTorrentObject(activity.object)
-}
 
 function sanitizeAndCheckVideoTorrentUpdateActivity (activity: any) {
   return isBaseActivityValid(activity, 'Update') &&
     sanitizeAndCheckVideoTorrentObject(activity.object)
 }
 
-function isVideoTorrentDeleteActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Delete')
-}
-
-function isVideoFlagValid (activity: any) {
-  return isBaseActivityValid(activity, 'Create') &&
-    activity.object.type === 'Flag' &&
-    isVideoAbuseReasonValid(activity.object.content) &&
-    isActivityPubUrlValid(activity.object.object)
-}
-
 function isActivityPubVideoDurationValid (value: string) {
   // https://www.w3.org/TR/activitystreams-vocabulary/#dfn-duration
   return exists(value) &&
@@ -56,6 +39,7 @@ function sanitizeAndCheckVideoTorrentObject (video: any) {
   // Default attributes
   if (!isVideoStateValid(video.state)) video.state = VideoState.PUBLISHED
   if (!isBooleanValid(video.waitTranscoding)) video.waitTranscoding = false
+  if (!isBooleanValid(video.downloadEnabled)) video.downloadEnabled = true
 
   return isActivityPubUrlValid(video.id) &&
     isVideoNameValid(video.name) &&
@@ -67,6 +51,7 @@ function sanitizeAndCheckVideoTorrentObject (video: any) {
     isVideoViewsValid(video.views) &&
     isBooleanValid(video.sensitive) &&
     isBooleanValid(video.commentsEnabled) &&
+    isBooleanValid(video.downloadEnabled) &&
     isDateValid(video.published) &&
     isDateValid(video.updated) &&
     (!video.content || isRemoteVideoContentValid(video.mediaType, video.content)) &&
@@ -97,17 +82,19 @@ function isRemoteVideoUrlValid (url: any) {
       ACTIVITY_PUB.URL_MIME_TYPES.MAGNET.indexOf(url.mediaType || url.mimeType) !== -1 &&
       validator.isLength(url.href, { min: 5 }) &&
       validator.isInt(url.height + '', { min: 0 })
+    ) ||
+    (
+      (url.mediaType || url.mimeType) === 'application/x-mpegURL' &&
+      isActivityPubUrlValid(url.href) &&
+      isArray(url.tag)
     )
 }
 
 // ---------------------------------------------------------------------------
 
 export {
-  sanitizeAndCheckVideoTorrentCreateActivity,
   sanitizeAndCheckVideoTorrentUpdateActivity,
-  isVideoTorrentDeleteActivityValid,
   isRemoteStringIdentifierValid,
-  isVideoFlagValid,
   sanitizeAndCheckVideoTorrentObject,
   isRemoteVideoUrlValid
 }
diff --git a/server/helpers/custom-validators/activitypub/view.ts b/server/helpers/custom-validators/activitypub/view.ts
index 7a3aca6f5..41d16469f 100644
--- a/server/helpers/custom-validators/activitypub/view.ts
+++ b/server/helpers/custom-validators/activitypub/view.ts
@@ -1,11 +1,11 @@
-import { isActivityPubUrlValid, isBaseActivityValid } from './misc'
+import { isActivityPubUrlValid } from './misc'
 
 function isViewActivityValid (activity: any) {
-  return isBaseActivityValid(activity, 'Create') &&
-    activity.object.type === 'View' &&
-    isActivityPubUrlValid(activity.object.actor) &&
-    isActivityPubUrlValid(activity.object.object)
+  return activity.type === 'View' &&
+    isActivityPubUrlValid(activity.actor) &&
+    isActivityPubUrlValid(activity.object)
 }
+
 // ---------------------------------------------------------------------------
 
 export {
diff --git a/server/helpers/custom-validators/misc.ts b/server/helpers/custom-validators/misc.ts
index b6f0ebe6f..76647fea2 100644
--- a/server/helpers/custom-validators/misc.ts
+++ b/server/helpers/custom-validators/misc.ts
@@ -13,6 +13,10 @@ function isNotEmptyIntArray (value: any) {
   return Array.isArray(value) && value.every(v => validator.isInt('' + v)) && value.length !== 0
 }
 
+function isArrayOf (value: any, validator: (value: any) => boolean) {
+  return isArray(value) && value.every(v => validator(v))
+}
+
 function isDateValid (value: string) {
   return exists(value) && validator.isISO8601(value)
 }
@@ -82,6 +86,7 @@ function isFileValid (
 
 export {
   exists,
+  isArrayOf,
   isNotEmptyIntArray,
   isArray,
   isIdValid,
diff --git a/server/helpers/custom-validators/videos.ts b/server/helpers/custom-validators/videos.ts
index ce4492a30..dd04aa5f6 100644
--- a/server/helpers/custom-validators/videos.ts
+++ b/server/helpers/custom-validators/videos.ts
@@ -88,8 +88,8 @@ function isVideoFileExtnameValid (value: string) {
 
 function isVideoFile (files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[]) {
   const videoFileTypesRegex = Object.keys(MIMETYPES.VIDEO.MIMETYPE_EXT)
-                               .map(m => `(${m})`)
-                               .join('|')
+                                    .map(m => `(${m})`)
+                                    .join('|')
 
   return isFileValid(files, videoFileTypesRegex, 'videofile', null)
 }
diff --git a/server/helpers/ffmpeg-utils.ts b/server/helpers/ffmpeg-utils.ts
index c7296054d..133b1b03b 100644
--- a/server/helpers/ffmpeg-utils.ts
+++ b/server/helpers/ffmpeg-utils.ts
@@ -1,5 +1,5 @@
 import * as ffmpeg from 'fluent-ffmpeg'
-import { join } from 'path'
+import { dirname, join } from 'path'
 import { getTargetBitrate, VideoResolution } from '../../shared/models/videos'
 import { CONFIG, FFMPEG_NICE, VIDEO_TRANSCODING_FPS } from '../initializers/constants'
 import { processImage } from './image-utils'
@@ -29,19 +29,28 @@ function computeResolutionsToTranscode (videoFileHeight: number) {
   return resolutionsEnabled
 }
 
-async function getVideoFileResolution (path: string) {
+async function getVideoFileSize (path: string) {
   const videoStream = await getVideoFileStream(path)
 
   return {
-    videoFileResolution: Math.min(videoStream.height, videoStream.width),
-    isPortraitMode: videoStream.height > videoStream.width
+    width: videoStream.width,
+    height: videoStream.height
+  }
+}
+
+async function getVideoFileResolution (path: string) {
+  const size = await getVideoFileSize(path)
+
+  return {
+    videoFileResolution: Math.min(size.height, size.width),
+    isPortraitMode: size.height > size.width
   }
 }
 
 async function getVideoFileFPS (path: string) {
   const videoStream = await getVideoFileStream(path)
 
-  for (const key of [ 'r_frame_rate' , 'avg_frame_rate' ]) {
+  for (const key of [ 'avg_frame_rate', 'r_frame_rate' ]) {
     const valuesText: string = videoStream[key]
     if (!valuesText) continue
 
@@ -110,8 +119,12 @@ async function generateImageFromVideoFile (fromPath: string, folder: string, ima
 type TranscodeOptions = {
   inputPath: string
   outputPath: string
-  resolution?: VideoResolution
+  resolution: VideoResolution
   isPortraitMode?: boolean
+
+  hlsPlaylist?: {
+    videoFilename: string
+  }
 }
 
 function transcode (options: TranscodeOptions) {
@@ -150,6 +163,18 @@ function transcode (options: TranscodeOptions) {
         command = command.withFPS(fps)
       }
 
+      if (options.hlsPlaylist) {
+        const videoPath = `${dirname(options.outputPath)}/${options.hlsPlaylist.videoFilename}`
+
+        command = command.outputOption('-hls_time 4')
+                         .outputOption('-hls_list_size 0')
+                         .outputOption('-hls_playlist_type vod')
+                         .outputOption('-hls_segment_filename ' + videoPath)
+                         .outputOption('-hls_segment_type fmp4')
+                         .outputOption('-f hls')
+                         .outputOption('-hls_flags single_file')
+      }
+
       command
         .on('error', (err, stdout, stderr) => {
           logger.error('Error in transcoding job.', { stdout, stderr })
@@ -166,6 +191,7 @@ function transcode (options: TranscodeOptions) {
 // ---------------------------------------------------------------------------
 
 export {
+  getVideoFileSize,
   getVideoFileResolution,
   getDurationFromVideoFile,
   generateImageFromVideoFile,
diff --git a/server/helpers/requests.ts b/server/helpers/requests.ts
index 3fc776f1a..5c6dc5e19 100644
--- a/server/helpers/requests.ts
+++ b/server/helpers/requests.ts
@@ -7,7 +7,7 @@ import { join } from 'path'
 
 function doRequest <T> (
   requestOptions: request.CoreOptions & request.UriOptions & { activityPub?: boolean }
-): Bluebird<{ response: request.RequestResponse, body: any }> {
+): Bluebird<{ response: request.RequestResponse, body: T }> {
   if (requestOptions.activityPub === true) {
     if (!Array.isArray(requestOptions.headers)) requestOptions.headers = {}
     requestOptions.headers['accept'] = ACTIVITY_PUB.ACCEPT_HEADER
diff --git a/server/helpers/utils.ts b/server/helpers/utils.ts
index 3c3406e38..cb0e823c5 100644
--- a/server/helpers/utils.ts
+++ b/server/helpers/utils.ts
@@ -7,7 +7,6 @@ import { join } from 'path'
 import { Instance as ParseTorrent } from 'parse-torrent'
 import { remove } from 'fs-extra'
 import * as memoizee from 'memoizee'
-import { isArray } from './custom-validators/misc'
 
 function deleteFileAsync (path: string) {
   remove(path)
diff --git a/server/helpers/video.ts b/server/helpers/video.ts
index 1bd21467d..c90fe06c7 100644
--- a/server/helpers/video.ts
+++ b/server/helpers/video.ts
@@ -1,10 +1,12 @@
 import { VideoModel } from '../models/video/video'
 
-type VideoFetchType = 'all' | 'only-video' | 'id' | 'none'
+type VideoFetchType = 'all' | 'only-video' | 'only-video-with-rights' | 'id' | 'none'
 
 function fetchVideo (id: number | string, fetchType: VideoFetchType, userId?: number) {
   if (fetchType === 'all') return VideoModel.loadAndPopulateAccountAndServerAndTags(id, undefined, userId)
 
+  if (fetchType === 'only-video-with-rights') return VideoModel.loadWithRights(id)
+
   if (fetchType === 'only-video') return VideoModel.load(id)
 
   if (fetchType === 'id' || fetchType === 'none') return VideoModel.loadOnlyId(id)