102 lines
3.6 KiB
JavaScript
102 lines
3.6 KiB
JavaScript
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2020
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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const queryConsts = require('./sqlConsts');
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const shortUrl = require('./urlShortener');
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const auth = require('../middleware/auth');
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const query = require('./sql');
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const log = require('./log');
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const co = require('co');
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const linkReg = /http(s)?:\/\/.*/;
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let urls = [];
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function processError(err, res, code = 400) {
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log.error((err && err.message) ? err.message : err);
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res.sendStatus(code);
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}
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function redirect(req, res) {
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let short = req.params[0];
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if (short.length > 12)
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{ res.sendStatus(400); return; }
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let id = shortUrl.decode(short);
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if (!id) { res.sendStatus(400); return; }
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query(queryConsts.find, [id])
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.then((result) => {
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log.info("redirecting (" + short + ") to " + result[0].link);
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res.redirect(result[0].link);
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})
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.catch((err) => processError(err, res));
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}
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function make(req, res) {
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if (!auth(req)) { res.sendStatus(401); return; }
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res.contentType('text');
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if (!req.query.url || !linkReg.test(req.query.url)) { processError(new Error('Empty or wrong url'), res, 400); return }
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let link = req.query.url;
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co(function* () {
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var result = yield query(queryConsts.exists, [link]);
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var key;
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if (result.length) {
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if (result.short) {
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res.write(result[0].short);
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res.end();
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return;
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}
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key = shortUrl.encode(result[0].id);
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log.info("already created shortlink (" + key + ") for " + link);
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} else {
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if (urls.find(r => r === link)) {
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processError(new Error('Link is already being made'), res, 500);
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return;
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}
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result = yield query(queryConsts.insert, [link]);
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key = shortUrl.encode(result.insertId);
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log.info("creted new shortlink (" + key + ") for " + link);
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yield query(queryConsts.update, [key, result.insertId]);
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}
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urls = urls.filter((item) => item !== link);
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res.write(key);
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res.end();
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}).catch((err) => processError(err, res));
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}
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module.exports = {
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redirect: redirect,
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make: make
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}; |