Re: Double hostname in DLR URL

Hi Andreas,

did you find anything? I never saw this on our side.

Alex

Am 27.07.2014 um 23:02 schrieb Andreas Fink <[email protected]>:

> Hi folks,
> 
> I run into a very puzzling issue with the delivery of DLRs from Kannel.
> 
> I have a script which submits SMS to kannel. This script constructs a DLR URL like this:
> 
>             callback_url = octstr_format("http://%s:%d/sms/response.php?priority=%d",
>                                                  octstr_get_cstr(callback_host),
>                                                  (int)callback_port,ilm_prio);
> 		further parameters added...
> 
> callback_host and callback_port are Octstr read from the config file and are always constant. They do not contain spaces or any trailing tabs or the like
> Then this URL is urlencoded and passed on to the URL which is sent to kannel.
> Kannel is processing the request and comes back with a delivery report.
> The hostname passed is a straight IP address not a DNS name.
> 
> 
> This is the SMSBox Log on a DLR being sent back
> 
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Scheme: http://
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Host: 10.195.198.70
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Port: 80
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Username: (null)
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Password: (null)
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Path: /sms/response.php
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Query: {some parameters...}
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   Fragment: (null)
> 2014-07-27 20:27:06 [16079] [10] DEBUG: HTTP: Reusing connection to `10.195.198.70:80' (fd=31).
> 2014-07-27 20:27:06 [16079] [10] DEBUG: Socket connected at once
> 2014-07-27 20:27:06 [16079] [10] DEBUG: HTTP: Sending request:
> 2014-07-27 20:27:06 [16079] [10] DEBUG: Octet string at 0x7f9dd3b00050:
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   len:  563
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   size: 1024
> 2014-07-27 20:27:06 [16079] [10] DEBUG:   immutable: 0
> 
> 
> this is all correct so far and my script answers with a "OK" and everything's fine.
> 
> 
> but then further down in the log I suddenly see this:
> 
> 
> 2014-07-27 20:32:30 [16079] [10] DEBUG: Parsing URL `http://10.195.198.70, 10.195.198.70/sms/response.php?....
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Scheme: http://
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Host: 85.195.198.70, 85.195.198.70
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Port: 80
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Username: (null)
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Password: (null)
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Path: /sms/response.php
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Query: ...
> 2014-07-27 20:31:03 [16079] [10] DEBUG:   Fragment: (null)
> 2014-07-27 20:31:03 [16079] [10] ERROR: gethostbyname failed
> 
> As you can see here, the IP address of the host is now twice in the hostname and of course this is not resolvable.
> I verified and I am 100% sure that I pass it only once, not twice.
> And nothing changed between the first request and the second one.
> Its still the same running instance of my code calling kannel. Its still passing the same DLR URL being passed.
> Its still the same smsbox running.
> 
> Has anyone seen such issues before?
> Has there been any change in gwlib in regards to handling URL's?
> 
> The version used is a SVN checkout from 24th of June.
> 
> 
> 
>