[1]: https://www.gnu.org/licenses/agpl-3.0.txt
[2]: https://github.com/ONLYOFFICE/core/blob/master/LICENSE.txt
[3]: https://github.com/ONLYOFFICE/onlyoffice-nextcloud/blob/mast...
https://web.archive.org/web/20160114094744/https://www.gnu.o...
- ONLYOFFICE is under AGPLv3 since 2016.
- AGPLv3 requires source disclosure, preserving the license, and keeping copyright notices.
- Section 7 lets ONLYOFFICE add conditions: keep the logo and no trademark use.
- You must follow all license terms, including these extra conditions, to legally use or distribute the software.
- Ignoring these conditions is a license breach and copyright infringement.
Good thing that the license says in section 7: “[…] When you convey a copy of a covered work, you may at your option remove any additional permissions [“terms that supplement the terms of this License by making exceptions from one or more of its conditions”] from that copy, or from any part of it. […]”
But, same result, because it also says:
> If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term.
A restriction stating "you must keep branding" can be ignored. What you can require, is attribution.
> [you may] supplement the terms of this License with terms: > >[...] > > b) Requiring preservation of specified reasonable legal notices or > author attributions in that material or in the Appropriate Legal > Notices displayed by works containing it; or > > c) Prohibiting misrepresentation of the origin of that material, or > requiring that modified versions of such material be marked in > reasonable ways as different from the original version; or > > d) Limiting the use for publicity purposes of names of licensors or > authors of the material; or > > e) Declining to grant rights under trademark law for use of some > trade names, trademarks, or service marks;
So the requirement of branding and attribution aren't "further restriction" (which, in this context, means a restriction that is not in the AGPLv3 license text). It's after section 7's list of allowed restrictions, which, paragraph b, contains "require preservation of [...] legal notices or [...] attributions", paragraph d is made to prevent misuse of the original author reputation, and paragraph e to prevent misuse of trademarks, so they, IMHO, are all legitimate.
These are different things.
However, I did glance at the repo and I don't see any attributions, either.
> - Section 7 lets ONLYOFFICE add conditions: keep the logo and no trademark use.
Section 7 allows you to add permissions, but it prohibits any restrictions beyond the options listed in section 7.
If you look at the repo, it looks like the did fail to include author attributions, as far as I can see. The source files need to say they were originally written by OO. That's what author attribution means.