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fix: 优化视频缩略图生成和清理逻辑，处理文件不存在的情况

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时瑾 2025-12-29 02:23:05 +08:00
parent 81c4cd7448
commit b509d08ed0
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1 changed files with 22 additions and 7 deletions
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29
packages/napcat-core/packet/highway/highwayContext.ts
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@ -112,7 +112,16 @@ export class PacketHighwayContext {
// 如果缺少视频缩略图，自动生成一个
let tempThumbPath: string | null = null;
if (!video.thumbPath || !fs.existsSync(video.thumbPath)) {
let thumbExists = false;
if (video.thumbPath) {
try {
await fs.promises.access(video.thumbPath, fs.constants.F_OK);
thumbExists = true;
} catch {
thumbExists = false;
}
}
if (!video.thumbPath || !thumbExists) {
tempThumbPath = await this.ensureVideoThumb(video);
}
@ -126,11 +135,16 @@ export class PacketHighwayContext {
}
} finally {
// 清理临时生成的缩略图文件
if (tempThumbPath && fs.existsSync(tempThumbPath)) {
if (tempThumbPath) {
const thumbToClean = tempThumbPath;
fs.promises.unlink(thumbToClean)
.then(() => this.logger.debug(`[Highway] Cleaned up temp thumbnail: ${thumbToClean}`))
.catch((e) => this.logger.warn(`[Highway] Failed to clean up temp thumbnail: ${thumbToClean}, reason: ${e instanceof Error ? e.message : e}`));
.catch((e) => {
// 文件不存在时忽略错误
if ((e as NodeJS.ErrnoException).code !== 'ENOENT') {
this.logger.warn(`[Highway] Failed to clean up temp thumbnail: ${thumbToClean}, reason: ${e instanceof Error ? e.message : e}`);
}
});
}
}
}
@ -154,20 +168,21 @@ export class PacketHighwayContext {
try {
// 尝试使用 FFmpeg 提取视频缩略图
await FFmpegService.extractThumbnail(video.filePath, thumbPath);
if (fs.existsSync(thumbPath)) {
try {
await fs.promises.access(thumbPath, fs.constants.F_OK);
this.logger.debug('[Highway] Video thumbnail generated successfully using FFmpeg');
} else {
} catch {
throw new Error('FFmpeg failed to generate thumbnail');
}
} catch (e) {
// FFmpeg 失败时（包括未初始化的情况）使用默认缩略图
this.logger.warn(`[Highway] Failed to extract thumbnail, using default. Reason: ${e instanceof Error ? e.message : e}`);
fs.writeFileSync(thumbPath, Buffer.from(defaultVideoThumbB64, 'base64'));
await fs.promises.writeFile(thumbPath, Buffer.from(defaultVideoThumbB64, 'base64'));
}
// 更新视频元素的缩略图信息
video.thumbPath = thumbPath;
const thumbStat = fs.statSync(thumbPath);
const thumbStat = await fs.promises.stat(thumbPath);
video.thumbSize = thumbStat.size;
video.thumbMd5 = await calculateFileMD5(thumbPath);
// 默认缩略图尺寸（与 defaultVideoThumbB64 匹配的尺寸）