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import { expect } from 'chai'
import { basename } from 'path'
import { removeFragmentedMP4Ext } from '@shared/core-utils'
import { sha256 } from '@shared/extra-utils'
import { HttpStatusCode, VideoStreamingPlaylist } from '@shared/models'
import { PeerTubeServer } from '@shared/server-commands'
async function checkSegmentHash (options: {
server: PeerTubeServer
baseUrlPlaylist: string
baseUrlSegment: string
resolution: number
hlsPlaylist: VideoStreamingPlaylist
}) {
const { server, baseUrlPlaylist, baseUrlSegment, resolution, hlsPlaylist } = options
const command = server.streamingPlaylists
const file = hlsPlaylist.files.find(f => f.resolution.id === resolution)
const videoName = basename(file.fileUrl)
const playlist = await command.get({ url: `${baseUrlPlaylist}/${removeFragmentedMP4Ext(videoName)}.m3u8` })
const matches = /#EXT-X-BYTERANGE:(\d+)@(\d+)/.exec(playlist)
const length = parseInt(matches[1], 10)
const offset = parseInt(matches[2], 10)
const range = `${offset}-${offset + length - 1}`
const segmentBody = await command.getSegment({
url: `${baseUrlSegment}/${videoName}`,
expectedStatus: HttpStatusCode.PARTIAL_CONTENT_206,
range: `bytes=${range}`
})
const shaBody = await command.getSegmentSha256({ url: hlsPlaylist.segmentsSha256Url })
expect(sha256(segmentBody)).to.equal(shaBody[videoName][range])
}
async function checkLiveSegmentHash (options: {
server: PeerTubeServer
baseUrlSegment: string
videoUUID: string
segmentName: string
hlsPlaylist: VideoStreamingPlaylist
}) {
const { server, baseUrlSegment, videoUUID, segmentName, hlsPlaylist } = options
const command = server.streamingPlaylists
const segmentBody = await command.getSegment({ url: `${baseUrlSegment}/${videoUUID}/${segmentName}` })
const shaBody = await command.getSegmentSha256({ url: hlsPlaylist.segmentsSha256Url })
expect(sha256(segmentBody)).to.equal(shaBody[segmentName])
}
async function checkResolutionsInMasterPlaylist (options: {
server: PeerTubeServer
playlistUrl: string
resolutions: number[]
}) {
const { server, playlistUrl, resolutions } = options
const masterPlaylist = await server.streamingPlaylists.get({ url: playlistUrl })
for (const resolution of resolutions) {
const reg = new RegExp(
'#EXT-X-STREAM-INF:BANDWIDTH=\\d+,RESOLUTION=\\d+x' + resolution + ',(FRAME-RATE=\\d+,)?CODECS="avc1.64001f,mp4a.40.2"'
)
expect(masterPlaylist).to.match(reg)
}
const playlistsLength = masterPlaylist.split('\n').filter(line => line.startsWith('#EXT-X-STREAM-INF:BANDWIDTH='))
expect(playlistsLength).to.have.lengthOf(resolutions.length)
}
export {
checkSegmentHash,
checkLiveSegmentHash,
checkResolutionsInMasterPlaylist
}
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