[SR-Users] app_python access to message body content

[Alex Balashov]

On 08/07/2016 03:13 PM, Anthony Joseph Messina wrote:

> I'm trying to play around a bit with app_python using the examples in the
> source.  I'd like to access the content of the body of the SIP message, but
> can't figure out how to do that.  I can get headers, method, etc.  How does
> one access body content with app_python?

You can pass the appropriate PV ($rb) as the second argument to 
python_exec():

http://kamailio.org/docs/modules/4.4.x/modules/app_python.html#idp18178284

In the Python script, you can fish it out with the handler function 
called in the first argument to python_exec(). If you're concerned about 
delimiters and serialisation, you can base64-encode it with 
{s.encode.base64}.

python_exec() only accepts two arguments, so if you need to pass in more 
data, your best bet is to use the 'jansson' module to construct a JSON 
blob and pass that in as the argument. On the Python side:

    import json


    ...
    class WhateverModule:
      ...
      def handler_func(self, msg, args):
        obj = json.loads(args)

-- Alex

-- 
Alex Balashov | Principal | Evariste Systems LLC
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