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MoonTVPlus/src/lib/utils.ts

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/* eslint-disable @typescript-eslint/no-explicit-any,no-console */
import he from 'he';
import Hls from 'hls.js';
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import bs58 from 'bs58';
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function getDoubanImageProxyConfig(): {
proxyType:
| 'direct'
| 'server'
| 'img3'
| 'cmliussss-cdn-tencent'
| 'cmliussss-cdn-ali'
| 'custom';
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proxyUrl: string;
} {
// 确保在浏览器环境中执行
if (typeof window === 'undefined') {
return {
proxyType: 'cmliussss-cdn-tencent',
proxyUrl: '',
};
}
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const doubanImageProxyType =
localStorage.getItem('doubanImageProxyType') ||
(window as any).RUNTIME_CONFIG?.DOUBAN_IMAGE_PROXY_TYPE ||
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'cmliussss-cdn-tencent';
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const doubanImageProxy =
localStorage.getItem('doubanImageProxyUrl') ||
(window as any).RUNTIME_CONFIG?.DOUBAN_IMAGE_PROXY ||
'';
return {
proxyType: doubanImageProxyType,
proxyUrl: doubanImageProxy,
};
}
/**
* URL使
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*/
export function processImageUrl(originalUrl: string): string {
if (!originalUrl) return originalUrl;
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// 如果已经是代理URL直接返回
if (originalUrl.startsWith('/api/image-proxy')) {
return originalUrl;
}
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// 仅处理豆瓣图片代理
if (!originalUrl.includes('doubanio.com')) {
return originalUrl;
}
const { proxyType, proxyUrl } = getDoubanImageProxyConfig();
switch (proxyType) {
case 'server':
return `/api/image-proxy?url=${encodeURIComponent(originalUrl)}`;
case 'img3':
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return originalUrl.replace(/img\d+\.doubanio\.com/g, 'img3.doubanio.com');
case 'cmliussss-cdn-tencent':
return originalUrl.replace(
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/img\d+\.doubanio\.com/g,
'img.doubanio.cmliussss.net'
);
case 'cmliussss-cdn-ali':
return originalUrl.replace(
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/img\d+\.doubanio\.com/g,
'img.doubanio.cmliussss.com'
);
case 'custom':
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return `${proxyUrl}${encodeURIComponent(originalUrl)}`;
case 'direct':
default:
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return originalUrl;
}
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}
/**
* URL使
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*/
export function processVideoUrl(originalUrl: string): string {
if (!originalUrl) return originalUrl;
// 仅处理豆瓣视频代理
if (!originalUrl.includes('doubanio.com')) {
return originalUrl;
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}
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// 获取用户配置的代理设置
const { proxyType, proxyUrl } = getDoubanImageProxyConfig();
// 根据代理类型处理URL
switch (proxyType) {
case 'direct':
// 直连,不使用代理
return originalUrl;
case 'server':
// 使用服务器代理
return `/api/video-proxy?url=${encodeURIComponent(originalUrl)}`;
case 'img3':
// 使用 img3.doubanio.com 代理
return originalUrl.replace(/img\d\.doubanio\.com/g, 'img3.doubanio.com');
case 'cmliussss-cdn-tencent':
// 使用腾讯云CDN代理
return originalUrl.replace(
/https?:\/\/img\d\.doubanio\.com/g,
'https://douban-img.cmliussss.workers.dev'
);
case 'cmliussss-cdn-ali':
// 使用阿里云CDN代理
return originalUrl.replace(
/https?:\/\/img\d\.doubanio\.com/g,
'https://douban-img-ali.cmliussss.workers.dev'
);
case 'custom':
// 使用自定义代理
if (proxyUrl) {
return originalUrl.replace(/https?:\/\/img\d\.doubanio\.com/g, proxyUrl);
}
return originalUrl;
default:
// 默认使用腾讯云CDN代理
return originalUrl.replace(
/https?:\/\/img\d\.doubanio\.com/g,
'https://douban-img.cmliussss.workers.dev'
);
}
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}
/**
* m3u8地址获取视频质量等级和网络信息
* @param m3u8Url m3u8播放列表的URL
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* @returns Promise<{quality: string, loadSpeed: string, pingTime: number, bitrate: string}>
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*/
export async function getVideoResolutionFromM3u8(m3u8Url: string): Promise<{
quality: string; // 如720p、1080p等
loadSpeed: string; // 自动转换为KB/s或MB/s
pingTime: number; // 网络延迟(毫秒)
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bitrate: string; // 视频码率(如 "2.5 Mbps"
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}> {
try {
// 直接使用m3u8 URL作为视频源避免CORS问题
return new Promise((resolve, reject) => {
const video = document.createElement('video');
video.muted = true;
video.preload = 'metadata';
// 测量网络延迟ping时间 - 使用m3u8 URL而不是ts文件
const pingStart = performance.now();
let pingTime = 0;
// 测量ping时间使用m3u8 URL
fetch(m3u8Url, { method: 'HEAD', mode: 'no-cors' })
.then(() => {
pingTime = performance.now() - pingStart;
})
.catch(() => {
pingTime = performance.now() - pingStart; // 记录到失败为止的时间
});
// 固定使用hls.js加载
const hls = new Hls();
// 设置超时处理
const timeout = setTimeout(() => {
hls.destroy();
video.remove();
reject(new Error('Timeout loading video metadata'));
}, 4000);
video.onerror = () => {
clearTimeout(timeout);
hls.destroy();
video.remove();
reject(new Error('Failed to load video metadata'));
};
let actualLoadSpeed = '未知';
let hasSpeedCalculated = false;
let hasMetadataLoaded = false;
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let estimatedBitrate = 0; // 估算的码率bps
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let fragmentStartTime = 0;
// 检查是否可以返回结果
const checkAndResolve = () => {
if (
hasMetadataLoaded &&
(hasSpeedCalculated || actualLoadSpeed !== '未知')
) {
clearTimeout(timeout);
const width = video.videoWidth;
if (width && width > 0) {
hls.destroy();
video.remove();
// 根据视频宽度判断视频质量等级,使用经典分辨率的宽度作为分割点
const quality =
width >= 3840
? '4K' // 4K: 3840x2160
: width >= 2560
? '2K' // 2K: 2560x1440
: width >= 1920
? '1080p' // 1080p: 1920x1080
: width >= 1280
? '720p' // 720p: 1280x720
: width >= 854
? '480p'
: 'SD'; // 480p: 854x480
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// 格式化码率
const bitrateStr = estimatedBitrate > 0
? estimatedBitrate >= 1000000
? `${(estimatedBitrate / 1000000).toFixed(1)} Mbps`
: `${Math.round(estimatedBitrate / 1000)} Kbps`
: '未知';
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resolve({
quality,
loadSpeed: actualLoadSpeed,
pingTime: Math.round(pingTime),
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bitrate: bitrateStr,
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});
} else {
// webkit 无法获取尺寸,直接返回
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const bitrateStr = estimatedBitrate > 0
? estimatedBitrate >= 1000000
? `${(estimatedBitrate / 1000000).toFixed(1)} Mbps`
: `${Math.round(estimatedBitrate / 1000)} Kbps`
: '未知';
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resolve({
quality: '未知',
loadSpeed: actualLoadSpeed,
pingTime: Math.round(pingTime),
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bitrate: bitrateStr,
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});
}
}
};
// 监听片段加载开始
hls.on(Hls.Events.FRAG_LOADING, () => {
fragmentStartTime = performance.now();
});
// 监听片段加载完成,只需首个分片即可计算速度
hls.on(Hls.Events.FRAG_LOADED, (event: any, data: any) => {
if (
fragmentStartTime > 0 &&
data &&
data.payload &&
!hasSpeedCalculated
) {
const loadTime = performance.now() - fragmentStartTime;
const size = data.payload.byteLength || 0;
if (loadTime > 0 && size > 0) {
const speedKBps = size / 1024 / (loadTime / 1000);
// 立即计算速度,无需等待更多分片
const avgSpeedKBps = speedKBps;
if (avgSpeedKBps >= 1024) {
actualLoadSpeed = `${(avgSpeedKBps / 1024).toFixed(1)} MB/s`;
} else {
actualLoadSpeed = `${avgSpeedKBps.toFixed(1)} KB/s`;
}
hasSpeedCalculated = true;
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// 从分片估算码率
if (data.frag && data.frag.duration > 0) {
const fragmentDuration = data.frag.duration; // 分片时长(秒)
const fragmentSize = size; // 分片大小(字节)
// 码率 = (分片大小 × 8 bits) / 分片时长
estimatedBitrate = Math.round((fragmentSize * 8) / fragmentDuration);
console.log(`[测速] 估算码率: ${(estimatedBitrate / 1000000).toFixed(2)} Mbps (分片: ${(fragmentSize / 1024 / 1024).toFixed(2)} MB, 时长: ${fragmentDuration.toFixed(1)}s)`);
}
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checkAndResolve(); // 尝试返回结果
}
}
});
hls.loadSource(m3u8Url);
hls.attachMedia(video);
// 监听hls.js错误
hls.on(Hls.Events.ERROR, (event: any, data: any) => {
console.error('HLS错误:', data);
if (data.fatal) {
clearTimeout(timeout);
hls.destroy();
video.remove();
reject(new Error(`HLS播放失败: ${data.type}`));
}
});
// 监听视频元数据加载完成
video.onloadedmetadata = () => {
hasMetadataLoaded = true;
checkAndResolve(); // 尝试返回结果
};
});
} catch (error) {
throw new Error(
`Error getting video resolution: ${error instanceof Error ? error.message : String(error)
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}`
);
}
}
export function cleanHtmlTags(text: string): string {
if (!text) return '';
const cleanedText = text
.replace(/<[^>]+>/g, '\n') // 将 HTML 标签替换为换行
.replace(/\n+/g, '\n') // 将多个连续换行合并为一个
.replace(/[ \t]+/g, ' ') // 将多个连续空格和制表符合并为一个空格,但保留换行符
.replace(/^\n+|\n+$/g, '') // 去掉首尾换行
.trim(); // 去掉首尾空格
// 使用 he 库解码 HTML 实体
return he.decode(cleanedText);
}
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/**
* Base58
* @param str
* @returns Base58
*/
export function base58Encode(str: string): string {
if (!str) return '';
// 在浏览器环境中使用 TextEncoder
if (typeof window !== 'undefined') {
const encoder = new TextEncoder();
const bytes = encoder.encode(str);
return bs58.encode(bytes);
}
// 在 Node.js 环境中使用 Buffer
const buffer = Buffer.from(str, 'utf-8');
return bs58.encode(buffer);
}
/**
* Base58
* @param encoded Base58
* @returns
*/
export function base58Decode(encoded: string): string {
if (!encoded) return '';
const bytes = bs58.decode(encoded);
// 在浏览器环境中使用 TextDecoder
if (typeof window !== 'undefined') {
const decoder = new TextDecoder();
return decoder.decode(bytes);
}
// 在 Node.js 环境中使用 Buffer
return Buffer.from(bytes).toString('utf-8');
}