[SR-Users] Intermittent error seen when using a python script in kamailio

[Wojciech Kopciewicz]

Hi,

Yes, those values are hard-coded strings.

Pozdrawiam / Best regards,
Wojtek


On Wed, Feb 23, 2022 at 8:25 AM Daniel-Constantin Mierla <miconda at gmail.com>
wrote:

> Hello,
>
> do you check that header_name parameter set for KSR.hdr.is_present() is a
> string value?
>
> Cheers,
> Daniel
> On 22.02.22 15:36, Wojciech Kopciewicz wrote:
>
> Hi,
>
> Intermittently we are observing the following error when checking if given
> header is present in SIP INVITE:
>
> SystemError: returned a result with an error set
>
> The complete stack trace is (some names redacted):
> 11(28) ERROR: {1 195 INVITE nMHZDN.10nOIDt4ldOwz5cqz0XnMepA9} app_python3
> [python_support.c:156]: python_handle_exception(): apy_exec:
> modify_headers((null)): Unhandled exception in the Python code:
> TypeError: an integer is required (got type NoneType)
>
> The above exception was the direct cause of the following exception:
>
> Traceback (most recent call last):
> File "/etc/kamailio/kamailio.py", line 25, in modify_headers
> self.modify_header("SomeHeader")
> File "/etc/kamailio/kamailio.py", line 29, in modify_header
> present = KSR.hdr.is_present(header_name)
> SystemError: returned a result with an error set
>
> Kamailio version (kamailio -v output):
>
> version: kamailio 5.4.6 (x86_64/linux)
>
> flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS,
> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC,
> F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT,
> USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST,
> HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
> ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024,
> BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> id: unknown
> compiled with gcc 8.3.0
>
> Operation system: Linux kamailio-5c7484c74d-vhhr8 5.4.0-1056-azure
> #58~18.04.1-Ubuntu SMP Wed Jul 28 23:14:18 UTC 2021 x86_64 GNU/Linux
>
> Are you able to help me find the root cause of this issue?
> Pozdrawiam / Best regards,
> Wojtek
>
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