hostr/web/routes/file.js

118 lines
3 KiB
JavaScript

import { join } from 'path';
import mime from 'mime-types';
import models from '../../models';
import hostrFileStream from '../../lib/hostr-file-stream';
import { formatFile } from '../../lib/format';
const storePath = process.env.UPLOAD_STORAGE_PATH;
const referrerRegexes = [
/^https:\/\/hostr.co/,
/^https:\/\/localhost.hostr.co/,
/^http:\/\/localhost:4040/,
];
function userAgentCheck(userAgent) {
if (!userAgent) {
return false;
}
return userAgent.match(/^(wget|curl|vagrant)/i);
}
function referrerCheck(referrer) {
return referrer && referrerRegexes.some((regex) => referrer.match(regex));
}
function hotlinkCheck(file, userAgent, referrer) {
return userAgentCheck(userAgent) || file.width || referrerCheck(referrer);
}
export function* get() {
if (this.params.size && ['150', '970'].indexOf(this.params.size) < 0) {
this.throw(404);
return;
}
const file = yield models.file.findOne({
where: {
id: this.params.id,
name: this.params.name,
},
});
this.assert(file, 404);
if (!hotlinkCheck(file, this.headers['user-agent'], this.headers.referer)) {
this.redirect(`/${file.id}`);
return;
}
if (!file.width && this.request.query.warning !== 'on') {
this.redirect(`/${file.id}`);
return;
}
if (file.malware) {
const alert = this.request.query.alert;
if (!alert || !alert.match(/i want to download malware/i)) {
this.redirect(`/${file.id}`);
return;
}
}
let localPath = join(storePath, file.id[0], `${file.id}_${file.name}`);
let remotePath = join(file.id[0], `${file.id}_${file.name}`);
if (this.params.size > 0) {
localPath = join(storePath, file.id[0], this.params.size, `${file.id}_${file.name}`);
remotePath = join(file.id[0], this.params.size, `${file.id}_${file.name}`);
}
if (file.malware) {
this.statsd.incr('file.malware.download', 1);
}
let type = 'application/octet-stream';
if (file.width > 0) {
if (this.params.size) {
this.statsd.incr('file.view', 1);
}
type = mime.lookup(file.name);
} else {
this.statsd.incr('file.download', 1);
}
if (userAgentCheck(this.headers['user-agent'])) {
this.set('Content-Disposition', `attachment; filename=${file.name}`);
}
this.set('Content-type', type);
this.set('Expires', new Date(2020, 1).toISOString());
this.set('Cache-control', 'max-age=2592000');
if (!this.params.size || (this.params.size && this.params.size > 150)) {
models.file.accessed(file.id);
}
this.body = yield hostrFileStream(localPath, remotePath);
}
export function* resized() {
yield get.call(this);
}
export function* landing() {
const file = yield models.file.findOne({
where: {
id: this.params.id,
},
});
this.assert(file, 404);
if (userAgentCheck(this.headers['user-agent'])) {
this.params.name = file.name;
yield get.call(this);
return;
}
this.statsd.incr('file.landing', 1);
const formattedFile = formatFile(file);
yield this.render('file', { file: formattedFile });
}