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); 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; } }