52 lines
1.5 KiB
TypeScript
52 lines
1.5 KiB
TypeScript
import * as fs from 'fs';
|
|
import * as Koa from 'koa';
|
|
import { serverLogger } from '../index';
|
|
import { IImage, convertToPng, convertToJpeg } from '@/services/drive/image-processor';
|
|
import { createTemp } from '@/misc/create-temp';
|
|
import { downloadUrl } from '@/misc/download-url';
|
|
import { detectType } from '@/misc/get-file-info';
|
|
import { StatusError } from '@/misc/fetch';
|
|
|
|
export async function proxyMedia(ctx: Koa.Context) {
|
|
const url = 'url' in ctx.query ? ctx.query.url : 'https://' + ctx.params.url;
|
|
|
|
// Create temp file
|
|
const [path, cleanup] = await createTemp();
|
|
|
|
try {
|
|
await downloadUrl(url, path);
|
|
|
|
const { mime, ext } = await detectType(path);
|
|
|
|
if (!mime.startsWith('image/')) throw 403;
|
|
|
|
let image: IImage;
|
|
|
|
if ('static' in ctx.query && ['image/png', 'image/gif', 'image/apng', 'image/vnd.mozilla.apng', 'image/webp'].includes(mime)) {
|
|
image = await convertToPng(path, 498, 280);
|
|
} else if ('preview' in ctx.query && ['image/jpeg', 'image/png', 'image/gif', 'image/apng', 'image/vnd.mozilla.apng'].includes(mime)) {
|
|
image = await convertToJpeg(path, 200, 200);
|
|
} else {
|
|
image = {
|
|
data: fs.readFileSync(path),
|
|
ext,
|
|
type: mime,
|
|
};
|
|
}
|
|
|
|
ctx.set('Content-Type', image.type);
|
|
ctx.set('Cache-Control', 'max-age=31536000, immutable');
|
|
ctx.body = image.data;
|
|
} catch (e) {
|
|
serverLogger.error(`${e}`);
|
|
|
|
if (e instanceof StatusError && e.isClientError) {
|
|
ctx.status = e.statusCode;
|
|
} else {
|
|
ctx.status = 500;
|
|
}
|
|
} finally {
|
|
cleanup();
|
|
}
|
|
}
|