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🧪 test: 尝试解决 mcdn 问题 [#IAHDWM]

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This commit is contained in:
zhiyu 2024-08-03 10:59:30 +08:00
parent 45505cf550
commit 4be5081e28
1 changed files with 67 additions and 7 deletions
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74
utils/bilibili.js
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@ -5,7 +5,8 @@ import util from "util";
import {
BILI_BVID_TO_CID,
BILI_DYNAMIC,
BILI_PLAY_STREAM, BILI_SCAN_CODE_DETECT,
BILI_PLAY_STREAM,
BILI_SCAN_CODE_DETECT,
BILI_SCAN_CODE_GENERATE,
BILI_VIDEO_INFO
} from "../constants/tools.js";
@ -71,15 +72,13 @@ export async function getDownloadUrl(url) {
const info = JSON.parse(
data.match(/<script>window\.__playinfo__=({.*})<\/script><script>/)?.[1],
);
// 如果是大视频直接最低分辨率
const videoUrl =
info?.data?.dash?.video?.[0]?.baseUrl ?? info?.data?.dash?.video?.[0]?.backupUrl?.[0];
// 自动绕过解析不了的mcdn视频链接
const videoUrl = selectAndAvoidMCdnUrl(info?.data?.dash?.video?.[0]?.baseUrl, info?.data?.dash?.video?.[0]?.backupUrl);
// 自动绕过解析不了的mcdn音频链接
const audioUrl = selectAndAvoidMCdnUrl(info?.data?.dash?.audio?.[0]?.baseUrl, info?.data?.dash?.audio?.[0]?.backupUrl);
const audioUrl =
info?.data?.dash?.audio?.[0]?.baseUrl ?? info?.data?.dash?.audio?.[0]?.backupUrl?.[0];
const title = data.match(/title="(.*?)"/)?.[1]?.replaceAll?.(/\\|\/|:|\*|\?|"|<|>|\|/g, '');
if (videoUrl && audioUrl) {
return { videoUrl, audioUrl, title };
}
@ -348,3 +347,64 @@ export async function filterBiliDescLink(link) {
}
return link;
}
/**
* 动态规避哔哩哔哩cdn中的mcdn
* @param baseUrl
* @param backupUrls
* @returns {string}
*/
function selectAndAvoidMCdnUrl(baseUrl, backupUrls) {
// 判断BaseUrl
if (!baseUrl.includes(".mcdn.bilivideo.cn")) {
return baseUrl;
}
// backUrls, 找不到返回undefined
const backupUrl = backupUrls.find(backupUrl => {
return !backupUrl.includes(".mcdn.bilivideo.cn");
})
// 找到直接返回
if (backupUrl !== undefined) {
return backupUrl;
}
logger.info("[R插件][bili-MCDN] 检测到 mcdn 开始替换为源站的 cdn");
// 找不到替换 backupUrls 的第一个链接
return replaceP2PUrl(backupUrls?.[0]);
}
/**
* 动态替换哔哩哔哩 CDN
* @param url
* @param cdnSelect
* @returns {*|string}
*/
function replaceP2PUrl(url) {
try {
const urlObj = new URL(url);
const hostName = urlObj.hostname;
if (urlObj.hostname.match(/upos-sz-mirror08[ch]\.bilivideo\.com/) || urlObj.hostname.match(/upos-hz-mirrorakam\.akamaized\.net/)) {
urlObj.host = 'upos-sz-mirrorhwo1.bilivideo.com'
urlObj.port = 443;
logger.info(`更换视频源: ${ hostName } -> ${ urlObj.host }`);
return urlObj.toString();
} else if (urlObj.hostname.match(/upos-sz-estgoss\.bilivideo\.com/) || urlObj.hostname.match(/upos-sz-mirrorali(ov|b)?\.bilivideo\.com/)) {
urlObj.host = 'upos-sz-mirroralio1.bilivideo.com'
urlObj.port = 443;
logger.info(`更换视频源: ${ hostName } -> ${ urlObj.host }`);
return urlObj.toString();
} else if (urlObj.hostname.endsWith(".mcdn.bilivideo.cn") || urlObj.hostname.match(/cn(-[a-z]+){2}(-\d{2}){2}\.bilivideo\.com/)) {
urlObj.host = 'upos-sz-mirrorcoso1.bilivideo.com';
urlObj.port = 443;
logger.info(`更换视频源: ${ hostName } -> ${ urlObj.host }`);
return urlObj.toString();
} else if (urlObj.hostname.endsWith(".szbdyd.com")) {
urlObj.host = urlObj.searchParams.get('xy_usource');
urlObj.port = 443;
logger.info(`更换视频源: ${ hostName } -> ${ urlObj.host }`);
return urlObj.toString();
}
return url;
} catch (e) {
return url;
}
}