⇥ WordPress, the GPL and cherries on top
The WordPress community is abuzz with news that the WP Foundation has essentially gone to war with the makers of the Thesis WP theme. The substance of the argument, as I understand it, is that the makers of WordPress claim that themes, since they rely on WP’s GPL’ed code to run, must be covered by the GPL as well because they are derivative works. Thesis, on the other hand, is distributed under a commercial license, therefore violating this tenet.
I have, in the past, expressed my dislike for the GPL, which, inevitably, colours my “legal” opinion on the matter—though, I assure you, this post is not about the GPL and I have absolutely no intention on engaging on a debate on the license. Write me or comment on the GPL and I will simply not care—you’ve been warned.
Legal opinions abound
As always when a legal matter is involved, everyone and their dog is giving an opinion. Matt went and asked the Software Freedom Law Center to officially render theirs, and they came through, true to their name, with a nine-paragraph letter that illustrates how themes are, in fact, derivative works covered the GPL.
Arguments on the other side of the fence typically focus on the fact that themes are not derivative works, or because of the fair-use doctrine1.
Personally, I find the SFLC’s argument very weak from a technical standpoint—particularly in the citation of the use of include (which is not a function2) as justification for their claim that themes are derivative works. Includes are designed specifically to create interoperability between different programs—in the world of PHP, where there is no concept of “binary,” they are the equivalent of dynamic linking.
One would have to physically copy code between projects, or physically include files from another project in a new work, in order to create a derivative work in this context, and to claim that themes do this is simply ridiculous because WordPress is designed to be expanded in precisely the way that themes are developed. To impose the GPL on themes—unlike, say, imposing it on a fork of WP itself, which would be perfectly logical—is to restrict a developer’s ability to interact with a particular piece of software and this would constitute an artificial limitation on a developer’s ability to interact with WordPress, which could give grounds to a fair-use claim.
Obviously, the SFLC probably believes that any form of linking or reliance of a piece of software upon another creates a derivative work, and they may well be right. Larry Rosen of the OSI believes that the determination of what constitutes a derivative work in the context of software should also take into account the element of intent—that is, whether the author of the work in question wrote their software in a specific way because they were aware of and attempted to circumvent the application of a license to derivative works. If he’s right, building a theme cannot possibly constitute the creation of a derivative work—again, WordPress is designed to be expanded, and it cannot taint downstream work that is not a direct derivation of itself, much like Linux cannot impose the GPL on commercial drivers or on commercial products built on it3).
Legal opinions are meaningless
Here’s the kicker: what I think is meaningless. What Matt thinks is equally meaningless. And what the SFLC means is most meaningless of all.
I am not a lawyer, and neither is Matt. The SFLC, which has an obvious bias towards the enforcement of the GPL4 is made up of lawyers and they, more than anyone else, should have made sure to cover their collective ass and Matt’s by explicitly pointing out that there is but one legal opinion that matters: that of a judge and jury.
Unless the WP Foundation ever takes the makers of Thesis to court, therefore, all these “legal opinions” have absolutely no legal value whatsoever. They are nothing more than a form of posturing and an exercise in public relations in the world of court opinion, to cite Adlai Stevenson.
And that is what puzzles me, because from a business and strategic perspective, the WP Foundation has nothing to gain from this exercise. Let’s look at the possible outcomes:
- The WPF could sue and lose, and look like idiots who spend their time litigating rather than innovating (which is what they should stick with).
- The WPF could sue and win—and still look like idiots because the implications of themes being covered by the GPL would have an enormously chilling effect on the professional WordPress community. More than that, they would have to sue every infringer, or risk looking like they are pursuing some secret Matt-centric agenda.
- The WPF could do nothing and look like warmongering zealots—belligerent only in words, all they would achieve is a polarization and eventual schism of the community between those who believe that software is free, and those who believe that GPL is about freedom.
The way I see it, there is no possible outcome of this diatribe that could benefit the WPF, which is why I am puzzled.
Incidentally, you may be wondering why I think that GPL’ing the themes will be problematic for the entire community. Well, what I am wondering is: how will it affect the thousands of freelancers who create custom one-off themes for clients?
This is a big problem, because the GPL does not attach itself to a derivative work until you distribute it—this is why, for example, you don’t need to release GPL code if you hold copyright and use it for your internal purposes. If you are a freelancer, however, you normally hold copyright on a theme you develop but don’t use it for your own purposes—you give it to a client under some sort of license… which is exactly what amounts to distribution.
Unless you assign the copyright in your work to the client (and why would you want to? You are a freelancer, not an employee, and giving up copyright in a particular work is tantamount to giving up your trade secrets), you are, effectively, distributing the theme you developed, which now becomes covered by the GPL. Should the theme somehow include code that is owned by the client—for example to interface to one of their internal systems—that code might well be covered by the GPL, too, thus opening a can of worms of elephantine proportions: the client has gone from ordering a bunch of templates for its website to having to open-source and distribute its own proprietary code. If I were said client, I’d probably be switching to another CMS right now.
Naturally, the WPF could say that it won’t pursue those cases, but they don’t get to choose what the GPL attaches itself to or not—remember, the GPL is not GPL’ed itself: you can’t modify it, you can only use it or not use it. And the GPL says that derivative works must also be released under the GPL period.
So, what the WPF thinks the GPL applies to and what it actually applies to could be two completely different things. Therefore, while you may not get sued by the WPF for writing a proprietary theme specifically for a client, the GPL may still apply to it and all the code that is part of it—which means that, if your theme uses a client’s proprietary code, you’re both in potentially big, big trouble.
So, what should the WPF do?
First, it should back off; this fight isn’t helping anyone—least of all the WPF itself.
Second, it should draw very clear lines in the sand:
- WP is released under the GPL, and so has to be any direct contribution to core or fork thereof.
- Themes and plugins are not derivative works and are not covered by the GPL and can be released under commercial licenses.
- Themes and plugins distributed by wp.org must be released under a GPL.
This creates a fair and balanced set of clear guidelines for everyone to follow: if you want the exposure of wp.org—for example to increase your reputation and credibility as a WP expert freelancer—you have to release your code under an open-source license. If you want to distribute your code commercially, the burden of promotion and public relations is on you since the community doesn’t benefit directly from your work.
Now, I anticipate that some will simply say that, under my proposal, nothing would prevent commercial vendors from circumventing the fact that core is GPL and simply using plugins to effectively fork WP without forking it. Well, nothing has prevented them from doing that until now5, so how would this be different, other than giving developers and freelancers the confidence that the WPF board isn’t going to wake up on the wrong side of the bed one day and start suing people left and right?
- I link here to two articles by the same author only because these seem to be the best-researched among those I’ve seen. There are plenty more to go around. ↩
- I am not splitting hairs: if you want to make a legally-valid argument, it needs to be based on a technically valid thesis, or you will be ripped to pieces by the opposing expert. Trust me—I’ve done the ripping myself. ↩
- Again, the distinction is fuzzy here, because there are no binaries and no static linking in PHP—but that doesn’t mean that a court of law could create an analogous framework for PHP applications based on whether code was copied, whether there is overlapping functionality and what the intent of the downstream developer is. ↩
- It’s the very reason of their existence, and there is nothing wrong with that. ↩
- Sure, maybe the WPF claims that themes and plug-ins are covered by the GPL, but that hasn’t stopped developers from building commercial products anyway. ↩
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