[ckan-discuss] Extension license

[Dominik Moritz]

Hi,

we talked about this a few days ago and say that your extension has to have an AGPL compatible license because extensions are linked into CKAN. Also, you will probably use CKAN as a "library" in your extension which will definitely require an AGPL compatible license. 

However, I'm also not a lawyer.

Cheers,
Dominik


On 13 Jul 2013, at 22:48, Stéphane Guidoin <stephane at opennorth.ca> wrote:

> Thank you Ian,
> 
> I have to say the question of a closed license was really theory, I don't
> expect to go there. The question was more to know if an extension is
> affected by license constrains as would be the code of the core components.
> On that point, your answer seem logical. Thanks
> 
> 
> On Fri, Jul 12, 2013 at 5:29 PM, Ian Ward <ian at excess.org> wrote:
> 
>> On Fri, Jul 12, 2013 at 3:38 PM, Stéphane Guidoin <stephane at opennorth.ca>
>> wrote:
>>> Hello,
>>> 
>>> Short question about license: So CKAN is using AGPL. But does the AGPL
>> also
>>> applies to extension that I would build from scratch? Or can I use any
>>> license I want on my extension? Even proprietary license?
>>> 
>>> From what I've seen, the CKAN extension build by the Gov of Canada uses
>> MIT
>>> (https://github.com/open-data/ckanext-canada/blob/master/COPYING) so it
>>> sounds like I set any license on the extension, but I wanted to check.
>> 
>> Hello Stéphane,
>> 
>> IANAL but my expectation is that you can only use licenses that are
>> compatible with the AGPL (such as MIT), and the combination ends up
>> being covered by the AGPL requirements. For a proprietary license you
>> would need permission from the CKAN authors.
>> 
>> It would be great if someone from OKFN would chime in here, of course!
>> 
>> Ian
>> (still not a lawyer)
>> 
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Dominik Moritz
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