修改api路径
This commit is contained in:
@@ -0,0 +1,246 @@
|
||||
// src/scrapeDouyin.ts
|
||||
import { BrowserContext, Page, chromium, type Response } from 'playwright';
|
||||
import { prisma } from '@/lib/prisma';
|
||||
import { uploadFile, generateUniqueFileName } from '@/lib/minio';
|
||||
import { createCamelCompatibleProxy } from '@/app/api/fetcher/utils';
|
||||
import { waitForFirstResponse, waitForResponseWithTimeout, safeJson, downloadBinary } from '@/app/api/fetcher/network';
|
||||
import { pickBestPlayAddr, extractFirstFrame } from '@/app/api/fetcher/media';
|
||||
import { handleImagePost } from '@/app/api/fetcher/uploader';
|
||||
import { saveToDB, saveImagePostToDB } from '@/app/api/fetcher/persist';
|
||||
import chalk from 'chalk';
|
||||
import { acquireBrowserContext, releaseBrowserContext } from '@/app/api/fetcher/browser';
|
||||
|
||||
const DETAIL_PATH = '/aweme/v1/web/aweme/detail/';
|
||||
const COMMENT_PATH = '/aweme/v1/web/comment/list/';
|
||||
const POST_PATH = '/aweme/v1/web/aweme/post/'
|
||||
|
||||
async function readPostMem(context: BrowserContext, page: Page) {
|
||||
const md = await page.evaluate(() => {
|
||||
// @ts-ignore
|
||||
let data = window.__pace_captured__.find(i => i[1] && i[1].includes(`"awemeId":`))[1]
|
||||
return JSON.parse(data.slice(data.indexOf("{")).replaceAll("]\n", ''))
|
||||
// return {aweme: { detail: {} } };
|
||||
}).catch(() => null);
|
||||
|
||||
let aweme_mem = md?.aweme?.detail as DouyinImageAweme;
|
||||
if (!aweme_mem) throw new Error('页面内存数据中未找到作品详情');
|
||||
|
||||
// @ts-ignore
|
||||
aweme_mem.author = aweme_mem.authorInfo
|
||||
const comments = md.comment ? createCamelCompatibleProxy<DouyinCommentResponse>(md.comment) : null;
|
||||
const aweme = createCamelCompatibleProxy(aweme_mem);
|
||||
|
||||
return { aweme, comments }
|
||||
}
|
||||
|
||||
|
||||
export class ScrapeError extends Error {
|
||||
constructor(
|
||||
message: string,
|
||||
public statusCode: number = 500,
|
||||
public code?: string
|
||||
) {
|
||||
super(message);
|
||||
this.name = 'ScrapeError';
|
||||
}
|
||||
}
|
||||
|
||||
export async function scrapeDouyin(url: string) {
|
||||
console.log(chalk.blue('🚀 启动共享 Chromium 浏览器...'));
|
||||
|
||||
const context = await acquireBrowserContext();
|
||||
const page = await context.newPage();
|
||||
console.log(chalk.cyan(`📄 正在访问: ${chalk.underline(url)}`));
|
||||
|
||||
await page.addInitScript(() => {
|
||||
// 建一个全局容器存捕获的数据
|
||||
(window as any).__pace_captured__ = [];
|
||||
|
||||
// 用 Proxy 包装一个数组，拦截 push
|
||||
const captured = (window as any).__pace_captured__;
|
||||
const proxyArr = new Proxy([] as any[], {
|
||||
get(target, prop, receiver) {
|
||||
if (prop === 'push') {
|
||||
return (...items: any[]) => {
|
||||
try { captured.push(...items); } catch { }
|
||||
return Array.prototype.push.apply(target, items);
|
||||
};
|
||||
}
|
||||
return Reflect.get(target, prop, receiver);
|
||||
},
|
||||
set(target, prop, value, receiver) {
|
||||
// 兼容站点可能直接赋初始数组： self.__pace_f = [a,b]
|
||||
if (prop === 'length') return Reflect.set(target, prop, value, receiver);
|
||||
return Reflect.set(target, prop, value, receiver);
|
||||
}
|
||||
});
|
||||
|
||||
(self as any).__pace_f = proxyArr;
|
||||
(window as any).__pace_f = proxyArr;
|
||||
});
|
||||
|
||||
try {
|
||||
// 先注册“先到先得”的监听，再导航，避免漏包
|
||||
const firstTypePromise = waitForFirstResponse(context, [
|
||||
{ key: 'detail', test: (r: Response) => r.url().includes(DETAIL_PATH) && r.status() === 200 },
|
||||
{ key: 'post', test: (r: Response) => r.url().includes(POST_PATH) && r.status() === 200 },
|
||||
], 9_000); // 整体 9s 兜底超时，不逐个等待
|
||||
|
||||
// 评论只做短时“有就用、没有不等”的监听
|
||||
const commentPromise = waitForResponseWithTimeout(
|
||||
context, (r: Response) => r.url().includes(COMMENT_PATH) && r.status() === 200, 8_000
|
||||
).catch(() => null);
|
||||
|
||||
await page.goto(url, { waitUntil: 'domcontentloaded', timeout: 60_000 });
|
||||
|
||||
// 查找页面中是否存在 "视频不存在" 的提示
|
||||
const isNotFound = await page.locator('text=视频不存在').count().then(count => count > 0).catch(() => false);
|
||||
if (isNotFound) {
|
||||
console.error(chalk.red('✗ 视频不存在或已被删除'));
|
||||
throw new ScrapeError('视频不存在或已被删除', 404, 'VIDEO_NOT_FOUND');
|
||||
}
|
||||
|
||||
try {
|
||||
// 优先尝试从内存读取图文数据
|
||||
let { aweme, comments } = await readPostMem(context, page);
|
||||
console.log(chalk.green('✓ 从内存读取图文数据成功'));
|
||||
|
||||
const uploads = await handleImagePost(context, aweme);
|
||||
if (!comments) {
|
||||
console.warn(chalk.yellow('⚠ 从内存读取评论数据失败，尝试从网络请求获取评论数据'));
|
||||
|
||||
const commentRes = await commentPromise;
|
||||
comments = commentRes && await safeJson<DouyinCommentResponse>(commentRes);
|
||||
if (!comments) {
|
||||
console.warn(chalk.yellow('⚠ 无法从内存读取评论数据，且网络请求也未返回评论数据'));
|
||||
comments = { comments: [], total: 0, status_code: 0 };
|
||||
} else {
|
||||
console.log(chalk.green('✓ 从网络请求获取评论数据成功'));
|
||||
}
|
||||
} else {
|
||||
console.log(chalk.green('✓ 从内存读取评论数据成功'));
|
||||
}
|
||||
const saved = await saveImagePostToDB(context, aweme, comments, uploads); // 传递完整 JSON
|
||||
console.log(chalk.green.bold('✓ 图文作品保存成功'));
|
||||
return { type: "image", ...saved };
|
||||
} catch {
|
||||
|
||||
}
|
||||
|
||||
const commentRes = await commentPromise;
|
||||
const firstType = await firstTypePromise;
|
||||
|
||||
if (!firstType) {
|
||||
console.error(chalk.red('✗ 既无法从内存读取数据,也无法从网络获得数据'));
|
||||
throw new ScrapeError('无法获取作品数据,可能是网络问题或作品已下架', 404, 'NO_DATA');
|
||||
}
|
||||
|
||||
console.log(chalk.cyan(`📡 检测到作品类型: ${chalk.bold(firstType.key === 'post' ? '图文' : '视频')}`));
|
||||
|
||||
let comments = commentRes && await safeJson<DouyinCommentResponse>(commentRes);
|
||||
if (!comments) {
|
||||
console.warn(chalk.yellow('⚠ 无法从内存读取评论数据，且网络请求也未返回评论数据'));
|
||||
comments = { comments: [], total: 0, status_code: 0 };
|
||||
}
|
||||
|
||||
// 分支：视频 or 图文（两者只会有一个命中，先到先得）
|
||||
if (firstType.key === 'post') {
|
||||
// 图文作品
|
||||
const postJson = await safeJson<DouyinPostListResponse>(firstType.response);
|
||||
if (!postJson?.aweme_list?.length) throw new ScrapeError('图文作品响应为空', 404, 'EMPTY_POST_RESPONSE');
|
||||
|
||||
const currentURL = page.url();
|
||||
const target_aweme_id = currentURL.split('/').at(-1);
|
||||
const awemeList = postJson.aweme_list as unknown as DouyinImageAweme[];
|
||||
let aweme = awemeList.find((pt: DouyinImageAweme) => pt.aweme_id === target_aweme_id);
|
||||
if (!aweme) {
|
||||
throw new ScrapeError('无法找到目标作品,可能已被删除', 404, 'POST_NOT_FOUND');
|
||||
}
|
||||
|
||||
const uploads = await handleImagePost(context, aweme);
|
||||
const saved = await saveImagePostToDB(context, aweme, comments, uploads, postJson); // 传递完整 JSON
|
||||
console.log(chalk.green.bold('✓ 图文作品保存成功'));
|
||||
return { type: "image", ...saved };
|
||||
} else if (firstType.key === 'detail') {
|
||||
// 视频作品
|
||||
const detail = (await safeJson<DouyinVideoDetailResponse>(firstType.response))!;
|
||||
|
||||
// 找到比特率最高的 url
|
||||
const bestPlayAddr = pickBestPlayAddr(
|
||||
detail?.aweme_detail?.video.bit_rate
|
||||
);
|
||||
const bestVUrl = bestPlayAddr?.url_list?.[0];
|
||||
const fps = bestPlayAddr?.FPS ?? null; // 提取 FPS
|
||||
|
||||
console.log(chalk.cyan(`📹 最佳视频 URL: ${chalk.dim(bestVUrl)}`));
|
||||
console.log(chalk.cyan(`🎞️ 视频帧率: ${chalk.bold(fps || 'N/A')} FPS`));
|
||||
if (bestPlayAddr?.width && bestPlayAddr?.height) {
|
||||
console.log(chalk.cyan(`📐 视频分辨率: ${chalk.bold(`${bestPlayAddr.width}x${bestPlayAddr.height}`)}`));
|
||||
}
|
||||
|
||||
// 下载视频并上传至 MinIO，获取外链
|
||||
let uploadedUrl: string | undefined;
|
||||
let coverUrl: string | undefined;
|
||||
if (bestVUrl && detail?.aweme_detail) {
|
||||
console.log(chalk.blue('⬇️ 正在下载视频...'));
|
||||
const { buffer, contentType, ext } = await downloadBinary(context, bestVUrl);
|
||||
const awemeId = detail.aweme_detail.aweme_id;
|
||||
const fileName = generateUniqueFileName(`${awemeId}.${ext}`, 'douyin/videos');
|
||||
|
||||
console.log(chalk.blue('⬆️ 正在上传视频到 MinIO...'));
|
||||
uploadedUrl = await uploadFile(buffer, fileName, { 'Content-Type': contentType });
|
||||
console.log(chalk.green(`✓ 视频上传成功: ${chalk.underline(uploadedUrl)}`));
|
||||
|
||||
// 提取首帧作为封面并上传
|
||||
try {
|
||||
console.log(chalk.blue('🖼️ 正在提取视频封面...'));
|
||||
const cover = await extractFirstFrame(buffer);
|
||||
if (cover) {
|
||||
const coverName = generateUniqueFileName(`${awemeId}.jpg`, 'douyin/covers');
|
||||
coverUrl = await uploadFile(cover.buffer, coverName, { 'Content-Type': cover.contentType });
|
||||
console.log(chalk.green(`✓ 封面上传成功: ${chalk.underline(coverUrl)}`));
|
||||
}
|
||||
} catch (e) {
|
||||
console.warn(chalk.yellow(`⚠ 提取封面失败，跳过: ${(e as Error)?.message || e}`));
|
||||
}
|
||||
}
|
||||
|
||||
const saved = await saveToDB(context, detail, comments, uploadedUrl, bestPlayAddr?.width, bestPlayAddr?.height, coverUrl, fps ?? undefined);
|
||||
console.log(chalk.green.bold('✓ 视频作品保存成功'));
|
||||
return { type: "video", ...saved };
|
||||
} else {
|
||||
throw new ScrapeError('无法判定作品类型,接口响应异常', 500, 'UNKNOWN_TYPE');
|
||||
}
|
||||
} catch (error) {
|
||||
// 如果是我们自定义的错误,直接抛出
|
||||
if (error instanceof ScrapeError) {
|
||||
throw error;
|
||||
}
|
||||
|
||||
// 处理其他类型的错误
|
||||
const errMsg = (error as Error)?.message || String(error);
|
||||
console.error(chalk.red(`✗ 爬取失败: ${errMsg}`));
|
||||
|
||||
// 根据错误类型返回不同的状态码
|
||||
if (errMsg.includes('timeout') || errMsg.includes('超时')) {
|
||||
throw new ScrapeError('请求超时,请稍后重试', 408, 'TIMEOUT');
|
||||
}
|
||||
if (errMsg.includes('页面内存数据中未找到作品详情')) {
|
||||
throw new ScrapeError('作品数据加载失败', 404, 'DATA_NOT_LOADED');
|
||||
}
|
||||
if (errMsg.includes('net::')) {
|
||||
throw new ScrapeError('网络连接失败', 503, 'NETWORK_ERROR');
|
||||
}
|
||||
|
||||
// 默认服务器错误
|
||||
throw new ScrapeError(errMsg || '爬取过程中发生未知错误', 500, 'UNKNOWN_ERROR');
|
||||
} finally {
|
||||
console.log(chalk.gray('🧹 清理资源...'));
|
||||
try { await page.close({ runBeforeUnload: true }); } catch {}
|
||||
// 仅释放共享上下文的引用，不直接关闭窗口
|
||||
await releaseBrowserContext();
|
||||
await prisma.$disconnect();
|
||||
console.log(chalk.gray('✓ 资源清理完成'));
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user