Add basic video editor support

6 files changed, 121 insertions, 71 deletions

diff --git a/server/helpers/custom-validators/actor-images.ts b/server/helpers/custom-validators/actor-images.ts
index 4fb0b7c70..89f5a2262 100644
--- a/server/helpers/custom-validators/actor-images.ts
+++ b/server/helpers/custom-validators/actor-images.ts
@@ -1,4 +1,5 @@
 
+import { UploadFilesForCheck } from 'express'
 import { CONSTRAINTS_FIELDS } from '../../initializers/constants'
 import { isFileValid } from './misc'
 
@@ -6,8 +7,14 @@ const imageMimeTypes = CONSTRAINTS_FIELDS.ACTORS.IMAGE.EXTNAME
   .map(v => v.replace('.', ''))
   .join('|')
 const imageMimeTypesRegex = `image/(${imageMimeTypes})`
-function isActorImageFile (files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[], fieldname: string) {
-  return isFileValid(files, imageMimeTypesRegex, fieldname, CONSTRAINTS_FIELDS.ACTORS.IMAGE.FILE_SIZE.max)
+
+function isActorImageFile (files: UploadFilesForCheck, fieldname: string) {
+  return isFileValid({
+    files,
+    mimeTypeRegex: imageMimeTypesRegex,
+    field: fieldname,
+    maxSize: CONSTRAINTS_FIELDS.ACTORS.IMAGE.FILE_SIZE.max
+  })
 }
 
 // ---------------------------------------------------------------------------
diff --git a/server/helpers/custom-validators/misc.ts b/server/helpers/custom-validators/misc.ts
index 81a60ee66..c80c86193 100644
--- a/server/helpers/custom-validators/misc.ts
+++ b/server/helpers/custom-validators/misc.ts
@@ -61,75 +61,43 @@ function isIntOrNull (value: any) {
 
 // ---------------------------------------------------------------------------
 
-function isFileFieldValid (
-  files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[],
-  field: string,
-  optional = false
-) {
-  // Should have files
-  if (!files) return optional
-  if (isArray(files)) return optional
+function isFileValid (options: {
+  files: UploadFilesForCheck
 
-  // Should have a file
-  const fileArray = files[field]
-  if (!fileArray || fileArray.length === 0) {
-    return optional
-  }
+  maxSize: number | null
+  mimeTypeRegex: string | null
 
-  // The file should exist
-  const file = fileArray[0]
-  if (!file || !file.originalname) return false
-  return file
-}
+  field?: string
 
-function isFileMimeTypeValid (
-  files: UploadFilesForCheck,
-  mimeTypeRegex: string,
-  field: string,
-  optional = false
-) {
-  // Should have files
-  if (!files) return optional
-  if (isArray(files)) return optional
+  optional?: boolean // Default false
+}) {
+  const { files, mimeTypeRegex, field, maxSize, optional = false } = options
 
-  // Should have a file
-  const fileArray = files[field]
-  if (!fileArray || fileArray.length === 0) {
-    return optional
-  }
-
-  // The file should exist
-  const file = fileArray[0]
-  if (!file || !file.originalname) return false
-
-  return new RegExp(`^${mimeTypeRegex}$`, 'i').test(file.mimetype)
-}
-
-function isFileValid (
-  files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[],
-  mimeTypeRegex: string,
-  field: string,
-  maxSize: number | null,
-  optional = false
-) {
   // Should have files
   if (!files) return optional
-  if (isArray(files)) return optional
 
-  // Should have a file
-  const fileArray = files[field]
-  if (!fileArray || fileArray.length === 0) {
+  const fileArray = isArray(files)
+    ? files
+    : files[field]
+
+  if (!fileArray || !isArray(fileArray) || fileArray.length === 0) {
     return optional
   }
 
-  // The file should exist
+  // The file exists
   const file = fileArray[0]
   if (!file || !file.originalname) return false
 
   // Check size
   if ((maxSize !== null) && file.size > maxSize) return false
 
-  return new RegExp(`^${mimeTypeRegex}$`, 'i').test(file.mimetype)
+  if (mimeTypeRegex === null) return true
+
+  return checkMimetypeRegex(file.mimetype, mimeTypeRegex)
+}
+
+function checkMimetypeRegex (fileMimeType: string, mimeTypeRegex: string) {
+  return new RegExp(`^${mimeTypeRegex}$`, 'i').test(fileMimeType)
 }
 
 // ---------------------------------------------------------------------------
@@ -204,7 +172,6 @@ export {
   areUUIDsValid,
   toArray,
   toIntArray,
-  isFileFieldValid,
-  isFileMimeTypeValid,
-  isFileValid
+  isFileValid,
+  checkMimetypeRegex
 }
diff --git a/server/helpers/custom-validators/video-captions.ts b/server/helpers/custom-validators/video-captions.ts
index 4cc7dcaf4..59ba005fe 100644
--- a/server/helpers/custom-validators/video-captions.ts
+++ b/server/helpers/custom-validators/video-captions.ts
@@ -1,5 +1,6 @@
-import { getFileSize } from '@shared/extra-utils'
+import { UploadFilesForCheck } from 'express'
 import { readFile } from 'fs-extra'
+import { getFileSize } from '@shared/extra-utils'
 import { CONSTRAINTS_FIELDS, MIMETYPES, VIDEO_LANGUAGES } from '../../initializers/constants'
 import { exists, isFileValid } from './misc'
 
@@ -11,8 +12,13 @@ const videoCaptionTypesRegex = Object.keys(MIMETYPES.VIDEO_CAPTIONS.MIMETYPE_EXT
                                 .concat([ 'application/octet-stream' ]) // MacOS sends application/octet-stream
                                 .map(m => `(${m})`)
                                 .join('|')
-function isVideoCaptionFile (files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[], field: string) {
-  return isFileValid(files, videoCaptionTypesRegex, field, CONSTRAINTS_FIELDS.VIDEO_CAPTIONS.CAPTION_FILE.FILE_SIZE.max)
+function isVideoCaptionFile (files: UploadFilesForCheck, field: string) {
+  return isFileValid({
+    files,
+    mimeTypeRegex: videoCaptionTypesRegex,
+    field,
+    maxSize: CONSTRAINTS_FIELDS.VIDEO_CAPTIONS.CAPTION_FILE.FILE_SIZE.max
+  })
 }
 
 async function isVTTFileValid (filePath: string) {
diff --git a/server/helpers/custom-validators/video-editor.ts b/server/helpers/custom-validators/video-editor.ts
new file mode 100644
index 000000000..09238675e
--- /dev/null
+++ b/server/helpers/custom-validators/video-editor.ts
@@ -0,0 +1,52 @@
+import validator from 'validator'
+import { CONSTRAINTS_FIELDS } from '@server/initializers/constants'
+import { buildTaskFileFieldname } from '@server/lib/video-editor'
+import { VideoEditorTask } from '@shared/models'
+import { isArray } from './misc'
+import { isVideoFileMimeTypeValid, isVideoImageValid } from './videos'
+
+function isValidEditorTasksArray (tasks: any) {
+  if (!isArray(tasks)) return false
+
+  return tasks.length >= CONSTRAINTS_FIELDS.VIDEO_EDITOR.TASKS.min &&
+    tasks.length <= CONSTRAINTS_FIELDS.VIDEO_EDITOR.TASKS.max
+}
+
+function isEditorCutTaskValid (task: VideoEditorTask) {
+  if (task.name !== 'cut') return false
+  if (!task.options) return false
+
+  const { start, end } = task.options
+  if (!start && !end) return false
+
+  if (start && !validator.isInt(start + '', CONSTRAINTS_FIELDS.VIDEO_EDITOR.CUT_TIME)) return false
+  if (end && !validator.isInt(end + '', CONSTRAINTS_FIELDS.VIDEO_EDITOR.CUT_TIME)) return false
+
+  if (!start || !end) return true
+
+  return parseInt(start + '') < parseInt(end + '')
+}
+
+function isEditorTaskAddIntroOutroValid (task: VideoEditorTask, indice: number, files: Express.Multer.File[]) {
+  const file = files.find(f => f.fieldname === buildTaskFileFieldname(indice, 'file'))
+
+  return (task.name === 'add-intro' || task.name === 'add-outro') &&
+    file && isVideoFileMimeTypeValid([ file ], null)
+}
+
+function isEditorTaskAddWatermarkValid (task: VideoEditorTask, indice: number, files: Express.Multer.File[]) {
+  const file = files.find(f => f.fieldname === buildTaskFileFieldname(indice, 'file'))
+
+  return task.name === 'add-watermark' &&
+    file && isVideoImageValid([ file ], null, true)
+}
+
+// ---------------------------------------------------------------------------
+
+export {
+  isValidEditorTasksArray,
+
+  isEditorCutTaskValid,
+  isEditorTaskAddIntroOutroValid,
+  isEditorTaskAddWatermarkValid
+}
diff --git a/server/helpers/custom-validators/video-imports.ts b/server/helpers/custom-validators/video-imports.ts
index dbf6a3504..af93aea56 100644
--- a/server/helpers/custom-validators/video-imports.ts
+++ b/server/helpers/custom-validators/video-imports.ts
@@ -1,4 +1,5 @@
 import 'multer'
+import { UploadFilesForCheck } from 'express'
 import validator from 'validator'
 import { CONSTRAINTS_FIELDS, MIMETYPES, VIDEO_IMPORT_STATES } from '../../initializers/constants'
 import { exists, isFileValid } from './misc'
@@ -25,8 +26,14 @@ const videoTorrentImportRegex = Object.keys(MIMETYPES.TORRENT.MIMETYPE_EXT)
                                       .concat([ 'application/octet-stream' ]) // MacOS sends application/octet-stream
                                       .map(m => `(${m})`)
                                       .join('|')
-function isVideoImportTorrentFile (files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[]) {
-  return isFileValid(files, videoTorrentImportRegex, 'torrentfile', CONSTRAINTS_FIELDS.VIDEO_IMPORTS.TORRENT_FILE.FILE_SIZE.max, true)
+function isVideoImportTorrentFile (files: UploadFilesForCheck) {
+  return isFileValid({
+    files,
+    mimeTypeRegex: videoTorrentImportRegex,
+    field: 'torrentfile',
+    maxSize: CONSTRAINTS_FIELDS.VIDEO_IMPORTS.TORRENT_FILE.FILE_SIZE.max,
+    optional: true
+  })
 }
 
 // ---------------------------------------------------------------------------
diff --git a/server/helpers/custom-validators/videos.ts b/server/helpers/custom-validators/videos.ts
index e526c4284..ca5f70fdc 100644
--- a/server/helpers/custom-validators/videos.ts
+++ b/server/helpers/custom-validators/videos.ts
@@ -13,7 +13,7 @@ import {
   VIDEO_RATE_TYPES,
   VIDEO_STATES
 } from '../../initializers/constants'
-import { exists, isArray, isDateValid, isFileMimeTypeValid, isFileValid } from './misc'
+import { exists, isArray, isDateValid, isFileValid } from './misc'
 
 const VIDEOS_CONSTRAINTS_FIELDS = CONSTRAINTS_FIELDS.VIDEOS
 
@@ -66,7 +66,7 @@ function isVideoTagValid (tag: string) {
   return exists(tag) && validator.isLength(tag, VIDEOS_CONSTRAINTS_FIELDS.TAG)
 }
 
-function isVideoTagsValid (tags: string[]) {
+function areVideoTagsValid (tags: string[]) {
   return tags === null || (
     isArray(tags) &&
     validator.isInt(tags.length.toString(), VIDEOS_CONSTRAINTS_FIELDS.TAGS) &&
@@ -86,8 +86,13 @@ function isVideoFileExtnameValid (value: string) {
   return exists(value) && (value === VIDEO_LIVE.EXTENSION || MIMETYPES.VIDEO.EXT_MIMETYPE[value] !== undefined)
 }
 
-function isVideoFileMimeTypeValid (files: UploadFilesForCheck) {
-  return isFileMimeTypeValid(files, MIMETYPES.VIDEO.MIMETYPES_REGEX, 'videofile')
+function isVideoFileMimeTypeValid (files: UploadFilesForCheck, field = 'videofile') {
+  return isFileValid({
+    files,
+    mimeTypeRegex: MIMETYPES.VIDEO.MIMETYPES_REGEX,
+    field,
+    maxSize: null
+  })
 }
 
 const videoImageTypes = CONSTRAINTS_FIELDS.VIDEOS.IMAGE.EXTNAME
@@ -95,8 +100,14 @@ const videoImageTypes = CONSTRAINTS_FIELDS.VIDEOS.IMAGE.EXTNAME
                                           .join('|')
 const videoImageTypesRegex = `image/(${videoImageTypes})`
 
-function isVideoImage (files: { [ fieldname: string ]: Express.Multer.File[] } | Express.Multer.File[], field: string) {
-  return isFileValid(files, videoImageTypesRegex, field, CONSTRAINTS_FIELDS.VIDEOS.IMAGE.FILE_SIZE.max, true)
+function isVideoImageValid (files: UploadFilesForCheck, field: string, optional = true) {
+  return isFileValid({
+    files,
+    mimeTypeRegex: videoImageTypesRegex,
+    field,
+    maxSize: CONSTRAINTS_FIELDS.VIDEOS.IMAGE.FILE_SIZE.max,
+    optional
+  })
 }
 
 function isVideoPrivacyValid (value: number) {
@@ -144,7 +155,7 @@ export {
   isVideoDescriptionValid,
   isVideoFileInfoHashValid,
   isVideoNameValid,
-  isVideoTagsValid,
+  areVideoTagsValid,
   isVideoFPSResolutionValid,
   isScheduleVideoUpdatePrivacyValid,
   isVideoOriginallyPublishedAtValid,
@@ -160,7 +171,7 @@ export {
   isVideoPrivacyValid,
   isVideoFileResolutionValid,
   isVideoFileSizeValid,
-  isVideoImage,
+  isVideoImageValid,
   isVideoSupportValid,
   isVideoFilterValid
 }