[one-dev] XML-RPC API server_* driver

Wed Jul 30 03:44:38 PDT 2014

We are developing an API library for .Net framework. Soon available in OpenSource on Github.

Cheers,

Emmanuel Mathot
www.terradue.com

On 30 Jul 2014, at 12:37, Daniel Molina <dmolina at opennebula.org> wrote:

> Great!!. May I ask what kind of tool/integration are you building on top OpenNebula?
> 
> Cheers
> 
> 
> On 30 July 2014 09:49, Cesare Rossi <cesare.rossi at terradue.com> wrote:
> Dear Daniel,
> 
> thank you for your support. We found that the problem was the encryption made on the client side. Now it works perfectly.
> 
> Thank you again
> 
> Cheers
> 
> 
> Cesare Rossi
> Terradue
> Rome, Italy | Oxford, UK
> http://www.terradue.com
> 
> 
> 
> On 29 Jul 2014, at 12:23, Daniel Molina <dmolina at opennebula.org> wrote:
> 
>> Could you check the password you are using to encrypt (password+sha1) is the same that oned uses to decrypt (oneuser show) 
>> 
>> [oneadmin at node1 ~]$ oneuser show serveradmin | grep PASS
>> PASSWORD        : 3412...
>> [oneadmin at node1 ~]$ cat .one/sunstone_auth
>> serveradmin:7f9f...
>> [oneadmin at node1 ~]$ echo -n "7f9f..." | sha1sum
>> 3412...  -
>> 
>> Also the problem could be that the token is (base64) encoded after being encrypted:
>> https://github.com/OpenNebula/one/blob/master/src/authm_mad/remotes/server_cipher/server_cipher_auth.rb#L90
>> 
>> and before being decrypted it's decoded:
>> https://github.com/OpenNebula/one/blob/master/src/authm_mad/remotes/server_cipher/server_cipher_auth.rb#L142
>> 
>> Cheers
>> 
>> 
>> On 29 July 2014 12:01, Emmanuel Mathot <emmanuel.mathot at terradue.com> wrote:
>> Here is the log output:
>> 
>> Mon Jul 28 16:37:48 2014 [AuM][D]: Message received: LOG I 5 Command execution fail: /var/lib/one/remotes/auth/server_cipher/authenticate serveradmin [secret] ****
>> 
>> Mon Jul 28 16:37:48 2014 [AuM][I]: Command execution fail: /var/lib/one/remotes/auth/server_cipher/authenticate serveradmin [secret] ****
>> Mon Jul 28 16:37:48 2014 [AuM][D]: Message received: LOG D 5 authenticate: Authenticating serveradmin, with password [secret] (4zj727qqns0xXEHWPBq4tJ2nRSyqom1KtWx5QBueF54I33c1y0fIuymmkn84TMP9)
>> 
>> Mon Jul 28 16:37:48 2014 [AuM][I]: authenticate: Authenticating serveradmin, with password [secret] (4zj727qqns0xXEHWPBq4tJ2nRSyqom1KtWx5QBueF54I33c1y0fIuymmkn84TMP9)
>> Mon Jul 28 16:37:48 2014 [AuM][D]: Message received: LOG E 5 bad decrypt
>> 
>> Mon Jul 28 16:37:48 2014 [AuM][I]: bad decrypt
>> Mon Jul 28 16:37:48 2014 [AuM][D]: Message received: LOG I 5 ExitCode: 255
>> 
>> 
>> Emmanuel Mathot
>> www.terradue.com
>> 
>> 
>> <PastedGraphic-1.tiff>
>> 
>> On 29 Jul 2014, at 11:06, Daniel Molina <dmolina at opennebula.org> wrote:
>> 
>>> Hi Enguerran,
>>> 
>>> What error message are you getting in oned.log after trying to connect?
>>> 
>>> Cheers
>>> 
>>> 
>>> On 28 July 2014 17:16, Enguerran Boissier <enguerran.boissier at terradue.com> wrote:
>>> Hello Daniel,
>>> Thanks for your answer, unfortunately we still don't manage to connect with a server_* user on the behalf of another normal user.
>>> This is basically what we do, let us know if we do something wrong:
>>> 
>>> { 
>>>   string expires = DateTime.Now.Subtract(new DateTime(1970,1,1,0,0,0, DateTimeKind.Utc)).TotalSeconds + 3600 + "";
>>>   string token_encrypted = Encrypt(this.AdminUsername + ":" + this.TargetUsername + ":" + expires, this.AdminPassword);
>>>   //this.AdminUsername = server_* user name
>>>   //this.TargetUsername = normal user name (target user)
>>>   //this.AdminPassword = server_* user password (SHA1 encrypted)
>>>   //Encrypt do the equivalent of the AES 256 CBC openssl encryption (cf https://gist.github.com/scottlowe/1411917, we just removed the salt part)
>>>   session_SHA = this.AdminUsername + ":" + this.TargetUsername + ":" + token_encrypted;
>>>   //session_SHA is the token used to authenticate on a request
>>> }
>>> 
>>> Thanks
>>> Best regards
>>> 
>>> 
>>> 
>>> 
>>> Enguerran Boissier
>>> www.terradue.com
>>> 
>>> <t2uk.png>
>>> 
>>> On 28 Jul 2014, at 10:45, Daniel Molina <dmolina at opennebula.org> wrote:
>>> 
>>>> Hi Cesare,
>>>> 
>>>> The server_* authentication is a special method where a user can authenticate on behalf of other user. This method was included in OpenNebula for scenarios such as an Apache server configured to use x509 certificates, Apache has already authenticated the user and we just encrypt a token with the serveradmin credentials and OpenNebula will decrypt the token and will perform all the actions as the target_username.
>>>> 
>>>> Users using the server_* auth method are special users and should not have any resource.
>>>> 
>>>> You can see an example on how Sunstone uses this method:
>>>> A user logs in:
>>>> https://github.com/OpenNebula/one/blob/master/src/sunstone/sunstone-server.rb#L169
>>>> do_auth is called to authenticate the user:
>>>> https://github.com/OpenNebula/one/blob/master/src/cloud/common/CloudAuth/SunstoneCloudAuth.rb#L18
>>>> a token is generated using the server_* method
>>>> https://github.com/OpenNebula/one/blob/master/src/authm_mad/remotes/server_cipher/server_cipher_auth.rb#L85
>>>> this info is sent to one and then checked by the auth driver:
>>>> https://github.com/OpenNebula/one/blob/master/src/authm_mad/remotes/server_cipher/server_cipher_auth.rb#L110
>>>> 
>>>> Hope this helps
>>>> 
>>>> http://docs.opennebula.org/4.6/administration/sunstone_gui/cloud_auth.html
>>>> 
>>>> 
>>>> 
>>>> 
>>>> On 25 July 2014 12:39, Cesare Rossi <cesare.rossi at terradue.com> wrote:
>>>> Dear All,
>>>> 
>>>> we are interacting with the XML-RPC API. We are trying to perform the special authentication method available with the users' drivers server_cipher or server_x509 (i.e. using username:target_username:secret), but it seems not working.
>>>> 
>>>> The question is: is it possible to use with that API such kind of users ? If yes, how ?
>>>> 
>>>> Thanks in advance,
>>>> 
>>>> Cheers
>>>> 
>>>> Cesare Rossi
>>>> Terradue
>>>> Rome, Italy | Oxford, UK
>>>> http://www.terradue.com
>>>> 
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Dev mailing list
>>>> Dev at lists.opennebula.org
>>>> http://lists.opennebula.org/listinfo.cgi/dev-opennebula.org
>>>> 
>>>> 
>>>> 
>>>> 
>>>> -- 
>>>> --
>>>> Daniel Molina
>>>> Project Engineer
>>>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>>> www.OpenNebula.org | dmolina at opennebula.org | @OpenNebula
>>> 
>>> 
>>> 
>>> 
>>> -- 
>>> --
>>> Daniel Molina
>>> Project Engineer
>>> OpenNebula - Flexible Enterprise Cloud Made Simple
>>> www.OpenNebula.org | dmolina at opennebula.org | @OpenNebula
>> 
>> 
>> 
>> 
>> -- 
>> --
>> Daniel Molina
>> Project Engineer
>> OpenNebula - Flexible Enterprise Cloud Made Simple
>> www.OpenNebula.org | dmolina at opennebula.org | @OpenNebula
> 
> 
> 
> 
> -- 
> --
> Daniel Molina
> Project Engineer
> OpenNebula - Flexible Enterprise Cloud Made Simple
> www.OpenNebula.org | dmolina at opennebula.org | @OpenNebula

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