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peertube/server/controllers/api/videos/editor.ts

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TypeScript
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2022-02-11 04:51:33 -05:00
import express from 'express'
import { createAnyReqFiles } from '@server/helpers/express-utils'
import { MIMETYPES } from '@server/initializers/constants'
import { JobQueue } from '@server/lib/job-queue'
import { buildTaskFileFieldname, getTaskFile } from '@server/lib/video-editor'
import {
HttpStatusCode,
VideoEditionTaskPayload,
VideoEditorCreateEdition,
VideoEditorTask,
VideoEditorTaskCut,
VideoEditorTaskIntro,
VideoEditorTaskOutro,
VideoEditorTaskWatermark,
VideoState
} from '@shared/models'
import { asyncMiddleware, authenticate, videosEditorAddEditionValidator } from '../../../middlewares'
const editorRouter = express.Router()
const tasksFiles = createAnyReqFiles(
MIMETYPES.VIDEO.MIMETYPE_EXT,
(req: express.Request, file: Express.Multer.File, cb: (err: Error, result?: boolean) => void) => {
const body = req.body as VideoEditorCreateEdition
// Fetch array element
const matches = file.fieldname.match(/tasks\[(\d+)\]/)
if (!matches) return cb(new Error('Cannot find array element indice for ' + file.fieldname))
const indice = parseInt(matches[1])
const task = body.tasks[indice]
if (!task) return cb(new Error('Cannot find array element of indice ' + indice + ' for ' + file.fieldname))
if (
[ 'add-intro', 'add-outro', 'add-watermark' ].includes(task.name) &&
file.fieldname === buildTaskFileFieldname(indice)
) {
return cb(null, true)
}
return cb(null, false)
}
)
editorRouter.post('/:videoId/editor/edit',
authenticate,
tasksFiles,
asyncMiddleware(videosEditorAddEditionValidator),
asyncMiddleware(createEditionTasks)
)
// ---------------------------------------------------------------------------
export {
editorRouter
}
// ---------------------------------------------------------------------------
async function createEditionTasks (req: express.Request, res: express.Response) {
const files = req.files as Express.Multer.File[]
const body = req.body as VideoEditorCreateEdition
const video = res.locals.videoAll
video.state = VideoState.TO_EDIT
await video.save()
const payload = {
videoUUID: video.uuid,
tasks: body.tasks.map((t, i) => buildTaskPayload(t, i, files))
}
JobQueue.Instance.createJob({ type: 'video-edition', payload })
return res.sendStatus(HttpStatusCode.NO_CONTENT_204)
}
const taskPayloadBuilders: {
[id in VideoEditorTask['name']]: (task: VideoEditorTask, indice?: number, files?: Express.Multer.File[]) => VideoEditionTaskPayload
} = {
'add-intro': buildIntroOutroTask,
'add-outro': buildIntroOutroTask,
'cut': buildCutTask,
'add-watermark': buildWatermarkTask
}
function buildTaskPayload (task: VideoEditorTask, indice: number, files: Express.Multer.File[]): VideoEditionTaskPayload {
return taskPayloadBuilders[task.name](task, indice, files)
}
function buildIntroOutroTask (task: VideoEditorTaskIntro | VideoEditorTaskOutro, indice: number, files: Express.Multer.File[]) {
return {
name: task.name,
options: {
file: getTaskFile(files, indice).path
}
}
}
function buildCutTask (task: VideoEditorTaskCut) {
return {
name: task.name,
options: {
start: task.options.start,
end: task.options.end
}
}
}
function buildWatermarkTask (task: VideoEditorTaskWatermark, indice: number, files: Express.Multer.File[]) {
return {
name: task.name,
options: {
file: getTaskFile(files, indice).path
}
}
}