Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread IOhannes m zmoelnig
On 2018-04-25 17:21, Roman Haefeli wrote:
> So it seems, only the documation needs an update (not to
> mention libcurl4-nss-dev)

that's probably not enough.
people might have to be made aware that they should *remove*
libcurl4-nss-dev first (if this is indeed the case).

fgamsdr
IOhannes



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Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread Roman Haefeli
On Mit, 2018-04-25 at 14:11 +0200, Thomas Mayer wrote:
> 
> Maybe you could replace libcurl4-nss-dev with libcurl4-gnutls-dev or
> libcurl4-openssl-dev for compiling purest_json.

Ah, i see. When only libcurl4-openssl-dev is installed and the others
removed, the resulting [rest] successfully validates certificates.

So it seems, only the documation needs an update (not to
mention libcurl4-nss-dev)

Roman


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Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread Thomas Mayer
Hi,

Roman Haefeli schrieb am 25.04.2018 13:13:

> On Mit, 2018-04-25 at 13:08 +0200, Roman Haefeli wrote:
>> On Mit, 2018-04-25 at 11:04 +0200, IOhannes m zmoelnig wrote:
>> > 
>> > On 2018-04-25 10:59, Roman Haefeli wrote:
>> > > 
>> > > 
>> > > Somehow using HTTPS with purest_json just worked(tm) in Debian
>> > > Jessie.
>> > > Now, that I had to compile purest_json myself,
>> > btw, what is wrong with the pd-purest-json Debian package?
>> Nothing. It seems to use the certificate store from the system
>> already.
> 
> Actually, I would love to understand a bit more the magic behind it.
> Why does purest_json/rest from apt correctly validate certs against the
> system's CA store and the compiled version does not?

This is probably related to the libcurl versions as documented in the wiki. The 
compilation instructions are a bit out of date, sorry about that.

Maybe you could replace libcurl4-nss-dev with libcurl4-gnutls-dev or 
libcurl4-openssl-dev for compiling purest_json.

Otherwise, you could also download the pem file from 
https://curl.haxx.se/docs/caextract.html and add

#define NEEDS_CERT_PATH 1

in line 45 of 
https://github.com/residuum/PuRestJson/blob/master/src/purest_json.h

Hth,
Thomas

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Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread IOhannes m zmoelnig
On 2018-04-25 13:08, Roman Haefeli wrote:
> On Mit, 2018-04-25 at 11:04 +0200, IOhannes m zmoelnig wrote:
>> On 2018-04-25 10:59, Roman Haefeli wrote:
>>>
>>> Somehow using HTTPS with purest_json just worked(tm) in Debian
>>> Jessie.
>>> Now, that I had to compile purest_json myself,
>> btw, what is wrong with the pd-purest-json Debian package?
> 
> Nothing. It seems to use the certificate store from the system already.
> It works well for me. Thanks for pointing me to it.
> 
>> afaik, the version in buster 
> 
> I am on Debian stable (Stretch). The version of Buster doesn't matter
> for me.

i might provide backports of (select) pd-packages. just like i already
provide a "puredata" (0.48) backport to stretch users.

> Regarding my other mail: I'm not looking for a solution, as I don't
> have a problem using the package from apt or compile my own. But I'm
> curious to know whether it is possible as a Deken package maintainer to
> address the problem of different versions of linked libraries.

short answer: no.
longer answer: sure. people only need to include all the dependencies
locally (in this case, the deken package would need to provide a
"libjson-c2.so" file and the externals, e.g. "rest.pd_linux" would need
to look for this dynamic library locally (in addition to the system paths)).
repeat this for all other (non-standard) dynamic libraries your external
depends on. repeat this for all (non-standard) dynamic libraries
required by all (non-standard) dynamic libraries your external depends on.
recurse until there are no more non-standard dependencies left.

just to give a quick impression on the numbers of dynamic libraries:

~~~
$ ldd zexy/zexy.pd_linux | grep -c .
4
$ ldd purest_json/rest.pd_linux | grep -c .
32
~~~

if you are only interested in libraries in '/usr/' (as a crude
measurement on "non-standard" library):

~~~
$ ldd zexy/zexy.pd_linux | grep -c /usr/
0
$ ldd purest_json/rest.pd_linux | grep -c .
21
~~~

fgasdmr
IOhannes



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Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread Roman Haefeli
On Mit, 2018-04-25 at 13:08 +0200, Roman Haefeli wrote:
> On Mit, 2018-04-25 at 11:04 +0200, IOhannes m zmoelnig wrote:
> > 
> > On 2018-04-25 10:59, Roman Haefeli wrote:
> > > 
> > > 
> > > Somehow using HTTPS with purest_json just worked(tm) in Debian
> > > Jessie.
> > > Now, that I had to compile purest_json myself,
> > btw, what is wrong with the pd-purest-json Debian package?
> Nothing. It seems to use the certificate store from the system
> already.

Actually, I would love to understand a bit more the magic behind it.
Why does purest_json/rest from apt correctly validate certs against the
system's CA store and the compiled version does not?

Roman


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Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread Roman Haefeli
On Mit, 2018-04-25 at 11:04 +0200, IOhannes m zmoelnig wrote:
> On 2018-04-25 10:59, Roman Haefeli wrote:
> > 
> > Somehow using HTTPS with purest_json just worked(tm) in Debian
> > Jessie.
> > Now, that I had to compile purest_json myself,
> btw, what is wrong with the pd-purest-json Debian package?

Nothing. It seems to use the certificate store from the system already.
It works well for me. Thanks for pointing me to it.

> afaik, the version in buster 

I am on Debian stable (Stretch). The version of Buster doesn't matter
for me.

> is pretty up-to-date and using the correct
> Debian package for your distribution will magically get rid of all
> the
> dependency problems you experience.

Regarding my other mail: I'm not looking for a solution, as I don't
have a problem using the package from apt or compile my own. But I'm
curious to know whether it is possible as a Deken package maintainer to
address the problem of different versions of linked libraries.

> also, the pd-deken-apt package allows you to integrate apt packages
> in
> your deken search.

Which is a cool feature!

Roman

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Re: [PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread IOhannes m zmoelnig
On 2018-04-25 10:59, Roman Haefeli wrote:
> Somehow using HTTPS with purest_json just worked(tm) in Debian Jessie.
> Now, that I had to compile purest_json myself,

btw, what is wrong with the pd-purest-json Debian package?

afaik, the version in buster is pretty up-to-date and using the correct
Debian package for your distribution will magically get rid of all the
dependency problems you experience.
also, the pd-deken-apt package allows you to integrate apt packages in
your deken search.

famsdr
IOhannes



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[PD] purest_json: how to specify root CA or CA bundle when using SSL?

2018-04-25 Thread Roman Haefeli
Hey all

Somehow using HTTPS with purest_json just worked(tm) in Debian Jessie.
Now, that I had to compile purest_json myself, I'm having troubles
verifying the server. I'm getting:

    77 Problem with the SSL CA cert (path? access rights?)

when accessing a resource through HTTPS with [rest]. 

How can I tell [rest] where my certificate store lies? Or is there a
way to specify a root certificate?

Roman




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