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import { remove } from 'fs-extra'
import { Instance as ParseTorrent } from 'parse-torrent'
import { join } from 'path'
import { ResultList } from '../../shared'
import { CONFIG } from '../initializers/config'
import { sha256 } from '@shared/core-utils/crypto'
import { execPromise, execPromise2, randomBytesPromise } from './core-utils'
import { logger } from './logger'
function deleteFileAndCatch (path: string) {
remove(path)
.catch(err => logger.error('Cannot delete the file %s asynchronously.', path, { err }))
}
async function generateRandomString (size: number) {
const raw = await randomBytesPromise(size)
return raw.toString('hex')
}
interface FormattableToJSON<U, V> {
toFormattedJSON (args?: U): V
}
function getFormattedObjects<U, V, T extends FormattableToJSON<U, V>> (objects: T[], objectsTotal: number, formattedArg?: U) {
const formattedObjects = objects.map(o => o.toFormattedJSON(formattedArg))
return {
total: objectsTotal,
data: formattedObjects
} as ResultList<V>
}
function generateVideoImportTmpPath (target: string | ParseTorrent, extension = '.mp4') {
const id = typeof target === 'string'
? target
: target.infoHash
const hash = sha256(id)
return join(CONFIG.STORAGE.TMP_DIR, `${hash}-import${extension}`)
}
function getSecureTorrentName (originalName: string) {
return sha256(originalName) + '.torrent'
}
async function getServerCommit () {
try {
const tag = await execPromise2(
'[ ! -d .git ] || git name-rev --name-only --tags --no-undefined HEAD 2>/dev/null || true',
{ stdio: [ 0, 1, 2 ] }
)
if (tag) return tag.replace(/^v/, '')
} catch (err) {
logger.debug('Cannot get version from git tags.', { err })
}
try {
const version = await execPromise('[ ! -d .git ] || git rev-parse --short HEAD')
if (version) return version.toString().trim()
} catch (err) {
logger.debug('Cannot get version from git HEAD.', { err })
}
return ''
}
/**
* From a filename like "ede4cba5-742b-46fa-a388-9a6eb3a3aeb3.mp4", returns
* only the "ede4cba5-742b-46fa-a388-9a6eb3a3aeb3" part. If the filename does
* not contain a UUID, returns null.
*/
function getUUIDFromFilename (filename: string) {
const regex = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/
const result = filename.match(regex)
if (!result || Array.isArray(result) === false) return null
return result[0]
}
// ---------------------------------------------------------------------------
export {
deleteFileAndCatch,
generateRandomString,
getFormattedObjects,
getSecureTorrentName,
getServerCommit,
generateVideoImportTmpPath,
getUUIDFromFilename
}
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