I finally succeeded connecting to BaseX server. This issue was stupidly due to the last trailing '\0' character in the server time stamp response, messing out the password MD5 computations.


2014/1/7 jean-marc Mercier <jeanmarc.mercier@gmail.com>
@Dirk thx : I saw this with WireShark, even if I could have realized it without.


2014/1/7 jean-marc Mercier <jeanmarc.mercier@gmail.com>
ahhhh...I finally succeeded ! This was so stupidly due to the last trailing '\0' character in the server time stamp response, that was so stupidly messed out the password MD5 computations. I do like computers when I am loosing two days on such b*******t. 

I am actually eating my keyboard ....


2014/1/6 jean-marc Mercier <jeanmarc.mercier@gmail.com>
I installed WireShark. Thx Dirkk, this should definitively helps me. I keep you informed.


2014/1/6 jean-marc Mercier <jeanmarc.mercier@gmail.com>
Dirk, yes I read it. I also have the C# connector that works, and, even if it does not compile, the C Unix code. But still I can't connect :(


2014/1/6 Dirk Kirsten <dk@basex.org>
One other thing, based on your last mail: Did you have a look at
https://docs.basex.org/wiki/Server_Protocol#Authentication_.28via_cram-md5.29?
So the basic thing is that you have to hash the password first and then
combine the result with the timestamp send by the server and then hash
again to prevent time-based attacks.

Cheers,
Dirk

On 06/01/14 21:36, jean-marc Mercier wrote:
> ah ! nice ! I did not thought about this !
>
>
> 2014/1/6 Dirk Kirsten <dk@basex.org>
>
>> Hello Jean-Marc,
>>
>> No, there is no such echoing service. Especially, because you sait that
>> you can't connect, so the authentification does not seem to have taken
>> place. So doing anything before authentification would be rather weird.
>>
>> Also, you did not mention _what_ excactly does not work. However, you
>> can use tools like Wireshark (which should also be available on Windows,
>> I guess) to analyze all your traffic (you can also filter for traffic to
>> specific ports, so just relevant stuff is shown to you).
>>
>> Cheers,
>> Dirk
>>
>> On 06/01/14 21:15, jean-marc Mercier wrote:
>>> Hello,
>>>
>>> I still can't connect to BaseX. I checked that I sent to the server
>> exactly
>>> the same bytes than the C# connector that worked on my configuration.
>>>
>>> Is there any way to make the BaseX server echoing any input request on a
>>> particular socket to check exactly what my TCP connector is sending ?
>>>
>>>
>>>
>>> 2014/1/5 jean-marc Mercier <jeanmarc.mercier@gmail.com>
>>>
>>>> Dirk,
>>>>
>>>> Thx. Well, I am suffering a lot to develop this C++ BaseX API. I did not
>>>> succeed in installing the openssl MD5 algorithm, but I finally found a
>> MD5
>>>> algorithm that seems to work (at least, it seems to compute the MD5 hash
>>>> for "admin" correctly). However, after two days, I still can't connect
>> to
>>>> the BaseX server, and can't figure out why...
>>>>
>>>> Concerning TCP connectors, I think that it is wiser to use boost::asio
>>>> library : it is not MS, and seems to becoming the C++ network standard
>>>> library.
>>>>
>>>> Since this C++ BaseX API'fate is to be published (provided we can make
>> it
>>>> work!), maybe somebody in BaseX team, that have some experience with
>> C++,
>>>> could have a look to it ? I put the current code at
>>>> https://github.com/JohnLeM/BaseXCPPAPI, as a bottle in the sea :(
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> 2014/1/5 Dirk Kirsten <dk@basex.org>
>>>>
>>>>> Hello Jean-Marc,
>>>>>
>>>>> I see your point. Unfortunately, I don't have any experience doing
>>>>> Windows socket programming (nor do I run any Windows OS), so I am of
>> not
>>>>> much help here. But I would guess the C code can be quite easily
>>>>> replaced (e.g. OpenSSL is most likely just used for the md5
>> computation)
>>>>> and based on some articles like
>>>>>
>>>>>
>> http://www.codeproject.com/Articles/13071/Programming-Windows-TCP-Sockets-in-C-for-the-Begin
>>>>> I would guess windows socket programming can be done quite similar to
>>>>> Unix sockets.
>>>>>
>>>>> Cheers,
>>>>> Dirk
>>>>>
>>>>> On 03/01/14 11:33, jean-marc Mercier wrote:
>>>>>> Hi Dirk,
>>>>>>
>>>>>> Thanx for your answer. Indeed, I tried to install the existing C API.
>>>>> For
>>>>>> windows user :
>>>>>>
>>>>>> Some *.h, *.c files of the BaseX C API seems to work only with a gcc
>>>>>> compiler. Some others one don't even exists under windows, at least I
>>>>> did
>>>>>> not found them :
>>>>>> 1) the BaseX C API seems to use the open SSL framework. I did download
>>>>> and
>>>>>> install it, but have some problem to compile it with Visual C++
>> Express.
>>>>>> 2) Some needed c/h files (see for instance "#include <unistd.h>) are
>>>>>> located in the MinGW distribution for windows. However, these files
>> are
>>>>>> bound to GCC compiler, and can not be compiled with Microsoft
>> compiler.
>>>>>>
>>>>>> Indeed, I am trying to mimic in C++ the C# API, that works on my
>>>>>> configuration. But it is not easy for me, since I never manipulated
>>>>> sockets
>>>>>> and TCP connectors, and will take me a lot of time. Thus, if anyone
>>>>> already
>>>>>> did the work, that would be so nice to share :)
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Jean-Marc
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> 2014/1/3 Dirk Kirsten <dk@basex.org>
>>>>>>
>>>>>>> Hello Jean-Marc,
>>>>>>>
>>>>>>> What problems did you experience when using the provided C API
>>>>>>> (https://github.com/BaseXdb/basex-api/tree/master/src/main/c) under
>>>>>>> Windows 7? It should also work under windows.
>>>>>>> Additionally, you can find the source code of the C API at the
>>>>> basex-api
>>>>>>> repository, so this should give you a starting point if you ant to
>>>>>>> rewrite anything.
>>>>>>>
>>>>>>> Cheers,
>>>>>>> Dirk
>>>>>>>
>>>>>>> On 03/01/14 11:12, jean-marc Mercier wrote:
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> going back to the root... I am trying to connect my favorite C++
>>>>> tools to
>>>>>>>> BaseX.
>>>>>>>> Unfortunately, I am using visual C++ 12 Express under windows 7. It
>>>>> seems
>>>>>>>> that windows users will not be able to use the existing BaseX API C
>>>>>>>> connector, and need another one. Thus I started to code a C++ BaseX
>>>>> API
>>>>>>>> connector.
>>>>>>>>
>>>>>>>> Writing a API connector is quite difficult for me, since I don't
>> have
>>>>> the
>>>>>>>> required networks knowledge.
>>>>>>>>
>>>>>>>> Has somebody already some code to that purposes ?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> BaseX-Talk mailing list
>>>>>>>> BaseX-Talk@mailman.uni-konstanz.de
>>>>>>>> https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Dirk Kirsten, BaseX GmbH, http://basex.org
>>>>>>> |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz
>>>>>>> |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer:
>>>>>>> |   Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle
>>>>>>> `-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22
>>>>>>> _______________________________________________
>>>>>>> BaseX-Talk mailing list
>>>>>>> BaseX-Talk@mailman.uni-konstanz.de
>>>>>>> https://mailman.uni-konstanz.de/mailman/listinfo/basex-talk
>>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> Dirk Kirsten, BaseX GmbH, http://basex.org
>>>>> |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz
>>>>> |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer:
>>>>> |   Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle
>>>>> `-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22
>>>>>
>>>>
>>>>
>>>
>>
>> --
>> Dirk Kirsten, BaseX GmbH, http://basex.org
>> |-- Firmensitz: Blarerstrasse 56, 78462 Konstanz
>> |-- Registergericht Freiburg, HRB: 708285, Geschäftsführer:
>> |   Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle
>> `-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22
>>
>

--
Dirk Kirsten, BaseX GmbH, http://basex.org
|-- Firmensitz: Blarerstrasse 56, 78462 Konstanz
|-- Registergericht Freiburg, HRB: 708285, Geschäftsführer:
|   Dr. Christian Grün, Dr. Alexander Holupirek, Michael Seiferle
`-- Phone: 0049 7531 28 28 676, Fax: 0049 7531 20 05 22