[PATCH 1/5] usertools: use non-strict when json-loads in telemetry

[Morten Brørup]

> From: Chengwen Feng [mailto:fengchengwen at huawei.com]
> Sent: Wednesday, 15 June 2022 09.39
> 
> Use 'strict=False' in json-loads, it will ignore control characters
> (e.g. '\n\t'), this patch is prepared for the support of telemetry dump
> in the future.
> 
> Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
> ---
>  usertools/dpdk-telemetry.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/usertools/dpdk-telemetry.py b/usertools/dpdk-telemetry.py
> index a81868a547..63f8004566 100755
> --- a/usertools/dpdk-telemetry.py
> +++ b/usertools/dpdk-telemetry.py
> @@ -27,7 +27,7 @@ def read_socket(sock, buf_len, echo=True):
>      """ Read data from socket and return it in JSON format """
>      reply = sock.recv(buf_len).decode()
>      try:
> -        ret = json.loads(reply)
> +        ret = json.loads(reply, strict=False)
>      except json.JSONDecodeError:
>          print("Error in reply: ", reply)
>          sock.close()
> --
> 2.33.0
> 

As I understand this patch, it accepts non-JSON data from the telemetry socket.

Isn't it is a major protocol violation if the telemetry socket produces output requiring this modification? Doing that would break other applications expecting strictly JSON formatted output from the telemetry socket.