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https://gh-proxy.org/https://github.com/tiajinsha/JKVideo
synced 2026-07-07 23:18:38 +08:00
1
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@@ -1,6 +1,6 @@
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import React, { useRef, useState } from 'react';
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import React from 'react';
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import { View, StyleSheet, Dimensions } from 'react-native';
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import { Video, ResizeMode, AVPlaybackStatus } from 'expo-av';
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import { WebView } from 'react-native-webview';
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const { width } = Dimensions.get('window');
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const VIDEO_HEIGHT = width * 0.5625;
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@@ -9,23 +9,36 @@ interface Props {
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uri: string;
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}
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const buildHtml = (uri: string) => `
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<style>
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* { margin:0; padding:0; box-sizing:border-box; background:#000; }
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video { width:100vw; height:100vh; object-fit:contain; display:block; }
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</style>
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</head>
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<body>
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<video id="v" controls autoplay playsinline webkit-playsinline></video>
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<script>
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document.getElementById('v').src = ${JSON.stringify(uri)};
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</script>
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</body>
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</html>
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`;
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export function NativeVideoPlayer({ uri }: Props) {
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const videoRef = useRef<Video>(null);
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const [isPlaying, setIsPlaying] = useState(false);
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const onPlaybackStatusUpdate = (s: AVPlaybackStatus) => {
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if (s.isLoaded) setIsPlaying(s.isPlaying);
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};
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return (
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<View style={styles.container}>
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<Video
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ref={videoRef}
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source={{ uri, headers: { Referer: 'https://www.bilibili.com' } }}
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style={styles.video}
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resizeMode={ResizeMode.CONTAIN}
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onPlaybackStatusUpdate={onPlaybackStatusUpdate}
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useNativeControls
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<WebView
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source={{ html: buildHtml(uri) }}
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style={styles.webview}
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allowsInlineMediaPlayback
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mediaPlaybackRequiresUserAction={false}
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javaScriptEnabled
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originWhitelist={['*']}
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scrollEnabled={false}
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/>
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</View>
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);
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@@ -33,5 +46,5 @@ export function NativeVideoPlayer({ uri }: Props) {
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const styles = StyleSheet.create({
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container: { width, height: VIDEO_HEIGHT, backgroundColor: '#000' },
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video: { width, height: VIDEO_HEIGHT },
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webview: { width, height: VIDEO_HEIGHT, backgroundColor: '#000' },
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});
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@@ -1,5 +1,6 @@
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import React, { useRef, useState } from 'react';
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import React from 'react';
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import { View, StyleSheet, Dimensions, Text, Platform } from 'react-native';
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import { NativeVideoPlayer } from './NativeVideoPlayer';
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const { width } = Dimensions.get('window');
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const VIDEO_HEIGHT = width * 0.5625;
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@@ -30,8 +31,6 @@ export function VideoPlayer({ uri }: Props) {
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);
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}
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// Native: use expo-av
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const NativeVideoPlayer = require('./NativeVideoPlayer').NativeVideoPlayer;
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return <NativeVideoPlayer uri={uri} />;
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}
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134
fixbug.md
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134
fixbug.md
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@@ -0,0 +1,134 @@
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# Bug Report
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## [Critical] VideoPlayer - B站防盗链导致视频无法播放
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**文件**: `components/NativeVideoPlayer.tsx`, `components/VideoPlayer.tsx`
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B站 CDN 对视频流地址实施严格的防盗链策略(Referer 校验 + UA 校验 + 时效签名)。
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`expo-av` 的 `Video` 组件无法可靠地在底层 HTTP 请求中注入自定义 `Referer` / `User-Agent`,
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实际播放时服务器会返回 403,视频黑屏或播放失败。
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**修复方案**: 改用 `react-native-webview` 加载 B站官方嵌入播放器:
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```
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https://player.bilibili.com/player.html?bvid={bvid}&page=1&high_quality=1&danmaku=1
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```
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该嵌入页由浏览器环境发起请求,Referer/Cookie 天然正确,可正常播放。
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---
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## [Critical] VideoPlayer.tsx - 组件内动态 require
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**文件**: `components/VideoPlayer.tsx:34`
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```ts
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// 错误写法:在组件函数体内动态 require
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const NativeVideoPlayer = require('./NativeVideoPlayer').NativeVideoPlayer;
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```
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每次渲染都执行 `require()`,虽然 Metro 会缓存模块,但这是反模式,
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且与 React 渲染机制不兼容(Hook 规则 / 条件渲染中的动态导入)。
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同文件还导入了 `useRef, useState` 但从未使用。
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**修复方案**: 改为文件顶部静态 import,移除无用导入。
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---
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## [High] NativeVideoPlayer.tsx - isPlaying 状态无意义
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**文件**: `components/NativeVideoPlayer.tsx:14`
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```ts
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const [isPlaying, setIsPlaying] = useState(false);
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```
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追踪了播放状态但没有任何自定义控制 UI 使用它,纯冗余代码。
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---
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## [High] useVideoDetail.ts - getPlayUrl 在未登录时返回空/错误
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**文件**: `hooks/useVideoDetail.ts:19`
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```ts
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setStreamUrl(playData.durl[0]?.url ?? null);
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```
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B站 `/x/player/playurl` 接口:
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- 未登录时对部分视频返回 `code: -101`(未登录)或 `code: -403`(无权限)
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- 高清版本(qn>=80)需要大会员,未登录时 `durl` 数组为空或 fallback 到极低画质
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- `fnval: 1` 只请求 durl 格式,但部分视频仅提供 dash 格式,`durl` 为空数组
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`playData.durl[0]?.url` 为 `undefined`,`streamUrl` 始终 null,播放器持续显示"视频加载中"。
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**修复方案**: 使用 WebView 嵌入播放器后,此接口调用不再需要,移除即可。
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---
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## [High] services/types.ts - PlayUrlResponse 类型不完整
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**文件**: `services/types.ts:37`
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```ts
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export interface PlayUrlResponse {
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durl: Array<{ url: string; length: number; size: number }>;
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quality: number;
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}
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```
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缺少:
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- 接口 `code` 字段(API 响应状态码)
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- `dash` 格式(`fnval >= 16` 时返回,包含 video/audio 分离流)
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- `durl` 在 dash 模式下为 `undefined`,当前定义为必填数组会导致类型错误
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---
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## [Medium] app/video/[bvid].tsx - error 状态未处理
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**文件**: `app/video/[bvid].tsx:20`
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```ts
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const { video, streamUrl, loading: videoLoading } = useVideoDetail(bvid as string);
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```
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`useVideoDetail` 返回了 `error`,但页面中完全未使用,接口失败时用户看不到任何错误提示。
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---
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## [Medium] LoginModal.tsx - 移动端无法从响应头提取 Cookie
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**文件**: `components/LoginModal.tsx:62`
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```ts
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const setCookie = res.headers['set-cookie'];
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const match = setCookie?.find((c: string) => c.includes('SESSDATA'));
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```
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B站登录成功后 `SESSDATA` 以 `httpOnly` Cookie 设置,在 React Native 中
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`axios` 响应头里 `set-cookie` 通常为 `undefined`(被底层 HTTP 客户端过滤),
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导致登录二维码扫描后 `cookie` 始终为 `undefined`,登录流程无法完成。
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---
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## [Low] useVideoList.ts - useCallback 依赖导致的 stale closure 风险
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**文件**: `hooks/useVideoList.ts:11`
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```ts
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const load = useCallback(async (reset = false) => {
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if (loading) return; // loading 为 stale 值时可能错误地放行重复请求
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...
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}, [loading, page]); // 每次 loading/page 变化都重新创建函数
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```
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`load` 依赖 `loading` 用于防重,但同时 `onEndReached` 持有对 `load` 的引用,
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在 `loading=true` 的渲染周期内 `load` 会重新创建,而 FlatList 引用可能还是旧版本,
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导致防重逻辑失效或加载多次。应改用 `useRef` 追踪 loading 状态做防重。
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---
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## [Low] App.tsx - 残留 expo 模板代码
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**文件**: `App.tsx`
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文件内容为 expo 初始化模板,实际项目已使用 expo-router(入口为 `expo-router/entry`),
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`App.tsx` 不会被执行,但留在项目中容易造成混淆。
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@@ -5,20 +5,41 @@ import type { VideoItem, Comment, PlayUrlResponse, QRCodeInfo } from './types';
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const BASE = 'https://api.bilibili.com';
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const PASSPORT = 'https://passport.bilibili.com';
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function generateBuvid3(): string {
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const h = () => Math.floor(Math.random() * 16).toString(16);
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const s = (n: number) => Array.from({ length: n }, h).join('');
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return `${s(8)}-${s(4)}-${s(4)}-${s(4)}-${s(12)}infoc`;
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}
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async function getBuvid3(): Promise<string> {
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let buvid3 = await AsyncStorage.getItem('buvid3');
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if (!buvid3) {
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buvid3 = generateBuvid3();
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await AsyncStorage.setItem('buvid3', buvid3);
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}
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return buvid3;
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}
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const api = axios.create({
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baseURL: BASE,
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timeout: 10000,
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headers: {
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'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
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'Referer': 'https://www.bilibili.com',
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'User-Agent': 'Mozilla/5.0 (Linux; Android 11) AppleWebKit/537.36 Chrome/91.0',
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'Origin': 'https://www.bilibili.com',
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'Accept': 'application/json, text/plain, */*',
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'Accept-Language': 'zh-CN,zh;q=0.9',
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},
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});
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api.interceptors.request.use(async (config) => {
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const sessdata = await AsyncStorage.getItem('SESSDATA');
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if (sessdata) {
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config.headers['Cookie'] = `SESSDATA=${sessdata}`;
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}
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const [sessdata, buvid3] = await Promise.all([
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AsyncStorage.getItem('SESSDATA'),
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getBuvid3(),
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]);
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const cookies: string[] = [`buvid3=${buvid3}`];
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if (sessdata) cookies.push(`SESSDATA=${sessdata}`);
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config.headers['Cookie'] = cookies.join('; ');
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return config;
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});
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@@ -34,7 +55,7 @@ export async function getVideoDetail(bvid: string): Promise<VideoItem> {
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export async function getPlayUrl(bvid: string, cid: number): Promise<PlayUrlResponse> {
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const res = await api.get('/x/player/playurl', {
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params: { bvid, cid, qn: 64, fnval: 1 },
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params: { bvid, cid, qn: 64, fnval: 0, platform: 'html5' },
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});
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return res.data.data as PlayUrlResponse;
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}
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