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