56 lines
1.9 KiB
TypeScript
56 lines
1.9 KiB
TypeScript
import * as Koa from 'koa';
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import * as send from 'koa-send';
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import * as rename from 'rename';
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import { serverLogger } from '..';
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import { contentDisposition } from '../../misc/content-disposition';
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import { DriveFiles } from '../../models';
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import { InternalStorage } from '../../services/drive/internal-storage';
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const assets = `${__dirname}/../../server/file/assets/`;
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const commonReadableHandlerGenerator = (ctx: Koa.Context) => (e: Error): void => {
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serverLogger.error(e);
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ctx.status = 500;
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};
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export default async function(ctx: Koa.Context) {
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const key = ctx.params.key;
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// Fetch drive file
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const file = await DriveFiles.createQueryBuilder('file')
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.where('file.accessKey = :accessKey', { accessKey: key })
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.orWhere('file.thumbnailAccessKey = :thumbnailAccessKey', { thumbnailAccessKey: key })
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.orWhere('file.webpublicAccessKey = :webpublicAccessKey', { webpublicAccessKey: key })
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.getOne();
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if (file == null) {
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ctx.status = 404;
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await send(ctx as any, '/dummy.png', { root: assets });
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return;
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}
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if (!file.storedInternal) {
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ctx.status = 204;
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return;
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}
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const isThumbnail = file.thumbnailAccessKey === key;
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const isWebpublic = file.webpublicAccessKey === key;
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if (isThumbnail) {
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ctx.set('Content-Type', 'image/jpeg');
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ctx.set('Content-Disposition', contentDisposition('inline', `${rename(file.name, { suffix: '-thumb', extname: '.jpeg' })}`));
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ctx.body = InternalStorage.read(key);
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} else if (isWebpublic) {
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ctx.set('Content-Type', file.type === 'image/apng' ? 'image/png' : file.type);
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ctx.set('Content-Disposition', contentDisposition('inline', `${rename(file.name, { suffix: '-web' })}`));
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ctx.body = InternalStorage.read(key);
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} else {
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ctx.set('Content-Disposition', contentDisposition('inline', `${file.name}`));
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const readable = InternalStorage.read(file.accessKey!);
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readable.on('error', commonReadableHandlerGenerator(ctx));
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ctx.set('Content-Type', file.type);
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ctx.body = readable;
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}
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}
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