88 lines
2.3 KiB
TypeScript
88 lines
2.3 KiB
TypeScript
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import { GetObjectCommand, PutObjectCommand } from '@aws-sdk/client-s3';
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import { Readable } from 'node:stream';
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import { createWriteStream } from 'node:fs';
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import { mkdir, readFile, unlink } from 'node:fs/promises';
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import { tmpdir } from 'node:os';
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import path from 'node:path';
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import { pipeline } from 'node:stream/promises';
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import { getS3Client, getStorageConfig } from '../config/storage';
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/**
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* Streams an S3 object to a temp file on disk and returns the absolute path.
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* Workers prefer disk over buffers so ffmpeg can seek without holding the
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* whole video in RAM.
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*/
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export async function downloadObjectToTempFile(bucket: string, key: string, fileNameHint?: string): Promise<string> {
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const dir = path.join(tmpdir(), 'cio-jobs');
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await mkdir(dir, { recursive: true });
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const safeName = fileNameHint?.replace(/[^a-zA-Z0-9._-]/g, '_') ?? 'media';
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const localPath = path.join(dir, `${Date.now()}_${process.pid}_${safeName}`);
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const response = await getS3Client().send(new GetObjectCommand({ Bucket: bucket, Key: key }));
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if (!response.Body) {
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throw new Error(`S3 object ${bucket}/${key} returned no body`);
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}
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const body = response.Body as Readable;
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await pipeline(body, createWriteStream(localPath));
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return localPath;
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}
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export async function uploadFileToBucket(
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bucket: string,
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key: string,
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localPath: string,
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contentType: string,
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cacheControl?: string
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): Promise<void> {
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const buffer = await readFile(localPath);
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await getS3Client().send(
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new PutObjectCommand({
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Bucket: bucket,
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Key: key,
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Body: buffer,
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ContentType: contentType,
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CacheControl: cacheControl
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})
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);
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}
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export async function uploadBufferToBucket(
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bucket: string,
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key: string,
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buffer: Buffer,
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contentType: string,
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cacheControl?: string
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): Promise<void> {
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await getS3Client().send(
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new PutObjectCommand({
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Bucket: bucket,
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Key: key,
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Body: buffer,
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ContentType: contentType,
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CacheControl: cacheControl
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})
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);
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}
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export async function safeUnlink(filePath: string | undefined | null): Promise<void> {
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if (!filePath) return;
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try {
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await unlink(filePath);
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} catch {
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// best-effort cleanup
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}
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}
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export function videosBucket(): string {
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return getStorageConfig().bucketVideos;
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}
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export function mediaBucket(): string {
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return getStorageConfig().bucketMedia;
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}
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