[mod_python] Grabbing the callback object

>>>-----Original Message-----
>>>From: Conrad Steenberg [mailto:conrad at hep.caltech.edu]
>>>Sent: Friday, November 08, 2002 3:32 PM
>>>To: Wyant, Jaime
>>>Cc: 'mod_python at modpython.org'
>>>Subject: Re: [mod_python] Grabbing the callback object
>>>
>>>
>>>Hi Jaime
>>>
>>>You can write your own error message to the client, and return
>>>apache.DONE to stop Apache from any further processing.
>>>
>>>E.g.
>>>
>>>def handler(req):
>>>  try:
>>>    <Do some processing>
>>>  except:
>>>    <Write error message, including headers>
>>>    return apache.DONE
>>>
>>>  return apache.OK
>>>
>>>
>>>Cheers!
>>>
>>>Conrad
>>>

Thanks!  I thought about doing it that way.  Take a peek at a snippet of my
error log:


[Tue Nov  5 07:36:13 2002] [error] PythonHandler mod_python.publisher:
File "/
usr/local/lib/python2.2/site-packages/mod_python/publisher.py", line 88, in
hand
ler
    if func_path[-1] == ".":
[Tue Nov  5 07:36:13 2002] [error] PythonHandler mod_python.publisher:
IndexErro
r: string index out of range
[Tue Nov  5 08:09:44 2002] [error] PythonHandler mod_python.publisher:
Traceback
 (most recent call last):

I'm getting an IndexError in the publisher module.  I have already modified
that module a little bit already and would rather not change it any more.

No, my changes aren't causing the IndexError :).  I simply modified the
handler to "raise apache.SERVER_RETURN, apache.HTTP_NOT_FOUND" when an
ImportError occurred.  This stopped "mostly correct" paths from returning an
"Internal Server Error Message".  I can elaborate if you are curious.

Maybe I could create a wrapper handler for the publisher handler?

# my wrapper

import mod_python.publisher

def handler( req ):
  try:
    return mod_python.publisher.handler( req )    
  except Exception:
    req.write( create_cool_html_error_report() )
    return apache.OK


Thanks!
jaime

>>>On Fri, 2002-11-08 at 12:16, Wyant, Jaime wrote:
>>>> Hi all!
>>>> 
>>>> Is there any way to grab the Callback object?  I really 
>>>want to override the
>>>> "ReportError" method and generate a more meaningful error 
>>>message with
>>>> pretty graphics.
>>>> 
>>>> Better yet, is there a way to catch unhandled exceptions 
>>>and display a
>>>> custom error message? 
>>>> 
>>>> thanks!
>>>> 
>>>> jaime wyant (jwyant at sfbcic . com)
>>>> MS Farm Bureau
>>>> (601) 977 - 4291
>>>> 
>>>> 
>>>> _______________________________________________
>>>> Mod_python mailing list
>>>> Mod_python at modpython.org
>>>> http://www.modpython.org/mailman/listinfo/mod_python
>>>-- 
>>>*-----------------------------------------*
>>>| Conrad Steenberg                        |
>>>| Caltech, Mail Code 356-48               |
>>>| Pasadena, CA, 91125                     |
>>>| e-mail: conrad at hep.caltech.edu          |
>>>| Tel: (626) 395-8758                     |
>>>*-----------------------------------------*
>>>
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