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| export async function onRequest(context) {
let params = context.params
let vid = params.vid
let is_bvid
if(vid.startsWith('BV')){
is_bvid=true
} else if(vid.startsWith('av') || vid.startsWith('AV')) {
is_bvid=false
vid = vid.slice(2)
} else {
return new Response(`Uknown video id type for ${vid}, only support [av,AV,BV].`)
}
let qual = {
'360': 16,
'480': 32,
'720': 64,
'720+': 74,
'1080': 80,
'1080+': 112,
'4k': 120,
'hdr': 125,
'dolby': 126,
'8k': 127
}[params.qual]
let page_id = Number.parseInt(params.p)
if (Number.isNaN(page_id)) {
return new Response(`pageNum ${page_id} is not a number!`)
}
if (qual > 80 || qual == undefined){
return new Response("quality not supported,only support [360,480,720,720+,1080]!")
}
let video_info = await (await fetch(buildBiliReq(`https://api.bilibili.com/x/player/pagelist?${is_bvid ? 'bvid' : 'aid'}=${vid}`))).json()
if (video_info.code != 0) {
return new Response(`BiliApi error: returned code ${video_info.code},message: ${video_info.message}`)
}
let page = video_info.data[page_id]
if (page == undefined) {
return new Response(`pageNum out of range: requested p${page_id+1} but only have p${video_info.data.length}!`)
}
let cid = page.cid
let playurl_info = await (await fetch(buildBiliReq(`https://api.bilibili.com/x/player/playurl?${is_bvid ? 'bvid' : 'avid'}=${vid}&cid=${cid}&qn=${qual}&fnval=1&fnver=0&platform=pc`))).json()
if (playurl_info.code != 0) {
return new Response(`BiliApi error: getstream returned code ${playurl_info.code},message: ${playurl_info.message}`)
}
let video_url = playurl_info.data.durl[0].url
let video_file_name = `${vid}-P${page_id+1}-${page.part}-CID${cid}_${page.dimension.width}x${page.dimension.height}.mp4`
let video_response = await fetch(buildBiliReq(video_url,{'Range':context.request.headers.Range}))
let fin_video_response = new Response(video_response.body,video_response)
fin_video_response.headers.set('Access-Control-Allow-Origin', '*')
fin_video_response.headers.set('X-Bili-CID', cid)
fin_video_response.headers.set('X-Bili-VID', vid)
fin_video_response.headers.set('X-Bili-VID-URL', video_url)
fin_video_response.headers.set('Content-Disposition', `inline; filename="${video_file_name}"`)
fin_video_response.headers.set('set-cookie', "The_Cutest_Miko_Chan_In_The_World=Reimu Hakurei!;")
return fin_video_response
}
function buildBiliReq(url,customHeaders) {
return new Request(url,
{
headers:Object.assign({
'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9',
'accept-language': 'zh-CN, zh',
'cache-control': 'no-cache',
'dnt': '1',
'pragma': 'no-cache',
'sec-ch-ua': '" Not A;Brand"v = "99", "Chromium"v = "96", "Microsoft Edge"v = "96"',
'sec-ch-ua-mobile': '?0',
'sec-ch-ua-platform': '"Linux"',
'sec-fetch-dest': 'document',
'sec-fetch-mode': 'navigate',
'sec-fetch-site': 'none',
'sec-fetch-user': '?1',
'Referer':'https://www.bilibili.com/',
'Cookie': '换成自己小号的cookie',
'User-Agent': 'Mozilla/5.0 (X11; Linux) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36 Edg/96.0.1054.62',
},customHeaders)
});
}
|