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Jim Gallacher
jpg at jgassociates.ca
Sat Jan 27 11:19:46 EST 2007
export at hope.cz wrote: > Graham , > Thank you again for your help. > So I added .both to input filter and handler > req.method > req.uri > req.connection.id > Now they looks like this: > > ############### > from mod_python import apache,Cookie > def inputfilter(filter): > filter.req.log_error('Running inputfilter') > filter.req.log_error('Setting myflag..') > filter.req.myflag = True > filter.req.log_error('myflag was set to:') > filter.req.log_error(`filter.req.myflag`) > filter.req.log_error('inputfilter-filter.req.method') > filter.req.log_error(`filter.req.method`) > filter.req.log_error('inputfilter-filter.req.uri:') > filter.req.log_error(`filter.req.uri`) > filter.req.log_error('inputfilter-filter.req.connection.i.d') > filter.req.log_error(`filter.req.connection.id`) > if filter.req.method != 'POST': > filter.pass_on() > return > s = filter.read() > while s: > f.write(s) > f.flush() > filter.write(s) > filter.flush() > s = filter.read() > > if s is None: > filter.close() > f.close() > ############### > and a part of handler looks like this > : > ############## > else: > if req.method == 'POST': > req.log_error('Myhandler') > req.log_error('MyHandler, in POST request, has myflag') > req.log_error('myhandler-req.method') > req.log_error(`req.method`) > req.log_error('myhandler-req.uri') > req.log_error(`req.uri`) > req.log_error('myhandler-req.connection.id') > req.log_error(`req.connection.id`) > > req.log_error(`req.myflag`) > > ############### > > and the error log is here > ################## > [Sat Jan 27 13:01:33 2007] [notice] Apache/2.2.4 (Win32) configured -- resuming normal > operations > [Sat Jan 27 13:01:33 2007] [notice] Server built: Jan 9 2007 23:17:20 > [Sat Jan 27 13:01:33 2007] [notice] Parent: Created child process 1864 > [Sat Jan 27 13:01:33 2007] [notice] mod_python: Creating 8 session mutexes based on 0 > max processes and 250 max threads. > [Sat Jan 27 13:01:34 2007] [notice] Child 1864: Child process is running > [Sat Jan 27 13:01:34 2007] [notice] Child 1864: Acquired the start mutex. > [Sat Jan 27 13:01:34 2007] [notice] Child 1864: Starting 250 worker threads. > [Sat Jan 27 13:01:34 2007] [notice] Child 1864: Starting thread to listen on port 80. > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] Running inputfilter > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] Setting myflag.. > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] myflag was set to: > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] True > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] inputfilter-filter.req.method > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] 'GET' > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] inputfilter-filter.req.uri: > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] '/mod/uploadvideo.py' > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] inputfilter-filter.req.connection.i.d > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] 236 > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] Running inputfilter > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] Setting myflag.. > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] myflag was set to: > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] True > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] inputfilter-filter.req.method > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] 'GET' > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] inputfilter-filter.req.uri: > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] '/mod/uploadvideo.py' > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] inputfilter-filter.req.connection.i.d > [Sat Jan 27 13:01:41 2007] [error] [client 127.0.0.1] 236 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] Myhandler, referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] MyHandler, in POST request, has myflag, > referer: http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] myhandler-req.method, referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] 'POST', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] myhandler-req.uri, referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] '/mod/uploadvideo.py', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] myhandler-req.connection.id, referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] 236, referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] mod_python (pid=1864, > interpreter='www.emim.cz', phase='PythonHandler', handler='uploadvideo'): Application error, > referer: http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] ServerName: 'www.emim.cz', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] DocumentRoot: 'C:/Program > Files/Apache Software Foundation/Apache2.2/htdocs', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] URI: '/mod/uploadvideo.py', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] Location: '/mod', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] Directory: None, referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] Filename: 'C:/Program Files/Apache > Software Foundation/Apache2.2/htdocs/mod', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] PathInfo: '/uploadvideo.py', referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] Traceback (most recent call last):, > referer: http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] File "C:\\PYTHON23\\Lib\\site- > packages\\mod_python\\importer.py", line 1537, in HandlerDispatch\n > default=default_handler, arg=req, silent=hlist.silent), referer: > http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] File "C:\\PYTHON23\\Lib\\site- > packages\\mod_python\\importer.py", line 1229, in _process_target\n result = > _execute_target(config, req, object, arg), referer: http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] File "C:\\PYTHON23\\Lib\\site- > packages\\mod_python\\importer.py", line 1128, in _execute_target\n result = object(arg), > referer: http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] File > "C:/Django/projekty/mimiproject/apps/mimi/mod\\uploadvideo.py", line 69, in handler\n > req.log_error(`req.myflag`), referer: http://127.0.0.1/mod/uploadvideo.py?17644 > [Sat Jan 27 13:01:48 2007] [error] [client 127.0.0.1] AttributeError: 'mp_request' object has no > attribute 'myflag', referer: http://127.0.0.1/mod/uploadvideo.py?17644 > ################################ > > Can you see any problem there? > Thank you for help and reply > Lad. > > > >> There is 4 seconds between the filter call and the handler call. That >> seems a bit >> long. Are you sure they come from the same request? >> >> In both filter and handler also log the following attributes: >> >> req.method >> req.uri >> req.connection.id >> >> For the filter, prefix with 'filter.' to get to req object first >> obviously. >> >> You might also log result of os.getpid() to verify that each is run >> in the same >> process. >> >> Anyway, I suspect that it isn't from the same request. What is >> missing here and >> you need to understand is that the input filters for a request are >> not actually >> called until the handler calls req.read() or one of the other read >> methods of the >> request object. It is only after req.read() is called that the >> req.myflag value would >> have been set. So, if you haven't called req.read() before accessing >> the attribute >> it will fail. >> >> Graham >> >> On 27/01/2007, at 8:01 PM, export at hope.cz wrote: >> >>> Graham, >>> Thank you for your reply. >>> So, I used the debugging techniques like this: >>> >>> in input filter >>> ########################### >>> from mod_python import apache,Cookie >>> def inputfilter(filter): >>> filter.req.log_error('Running inputfilter') >>> filter.req.log_error('Setting myflag..') >>> filter.req.myflag = True >>> filter.req.log_error('myflag was set to:') >>> filter.req.log_error(`filter.req.myflag`) >>> if filter.req.method != 'POST': >>> filter.pass_on() >>> return >>> s = filter.read() >>> while s: >>> f.write(s) >>> f.flush() >>> filter.write(s) >>> filter.flush() >>> s = filter.read() >>> >>> if s is None: >>> filter.close() >>> f.close() >>> ######################## >>> >>> in handler >>> ########################## >>> >>> def handler(req): >>> if req.method == 'GET': >>> ...... >>> >>> else: >>> if req.method == 'POST': >>> req.log_error('Myhandler') >>> req.log_error('MyHandler, in POST request, has myflag') >>> req.log_error(`req.myflag`) >>> .... >>> .... >>> ####################### >>> and here is a part of error log >>> >>> .. >>> [Sat Jan 27 09:48:54 2007] [notice] Child 2196: Starting thread to >>> listen on port 80. >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] Running >>> inputfilter >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] Setting myflag.. >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] myflag was >>> set to: >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] True >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] Running >>> inputfilter >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] Setting myflag.. >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] myflag was >>> set to: >>> [Sat Jan 27 09:49:05 2007] [error] [client 127.0.0.1] True >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] Running >>> inputfilter >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] Setting myflag.. >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] myflag was >>> set to: >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] True >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] Running >>> inputfilter >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] Setting myflag.. >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] myflag was >>> set to: >>> [Sat Jan 27 09:49:08 2007] [error] [client 127.0.0.1] True >>> [Sat Jan 27 09:49:12 2007] [error] [client 127.0.0.1] Myhandler, >>> referer: >>> http://127.0.0.1/mod/uploadvideo.py?17644 >>> [Sat Jan 27 09:49:12 2007] [error] [client 127.0.0.1] MyHandler, in >>> POST request, has myflag, >>> referer: http://127.0.0.1/mod/uploadvideo.py?17644 >>> ..... >>> .... >>> .... >>> [Sat Jan 27 09:49:12 2007] [error] [client 127.0.0.1] >>> AttributeError: 'mp_request' object has no >>> attribute 'myflag', referer: http://127.0.0.1/mod/uploadvideo.py?17644 >>> ... >>> >>> >>> Where can be a problem? What shall I try? >>> Can you see any mistake I make? As Graham pointed out you need a call to req.read() or create a FieldStorage instance which will do that internally. When I take your code snippet and call util.FieldStorage(req) it works just fine. Jim >>> Thank you again for help >>> Lad >>> >>> >>>> Use some standard debugging techniques yourself to try and work it >>>> out. >>>> >>>> On 26/01/2007, at 10:44 PM, export at hope.cz wrote: >>>> >>>>> Graham, >>>>> Thank you for your reply. >>>>> I have >>>>> >>>>> def inputfilter(filter): >>>>> filter.req.myflag = True >>>> Add: >>>> >>>> filter.req.log_error('inputfilter') >>>> >>>>> ... >>>>> ... >>>>> >>>>> so, as you can see the first command in input filter >>>>> is filter.req.myflag = True >>>>> but yet, I can not access the req.myflag >>>>> in my request handler. >>>>> When I try >>>>> req.write(`req.myflag`) >>>> Add before this: >>>> >>>> req.log_error('handler') >>>> >>>> In other words, use the logging system to dump information into the >>>> Apache >>>> log files to see if the input filter is actually being called. It >>>> would look like it >>>> isn't. What have you done so far to confirm it is? >>>> >>>> Graham >>>> >>>>> I will receive the same error: >>>>> >>>>> AttributeError: 'mp_request' object has no attribute 'myflag' >>>>> >>>>> What shall I try to solve the problem. Do you have any idea? >>>>> Thank you >>>>> Lad >>>>> >>>>>> Your input filter can't have been called then, or not the part >>>>>> where you >>>>>> assigned the attribute. If the variable may not be there in all >>>>>> situations, >>>>>> then use: >>>>>> >>>>>> if hasattr(req, 'myflag'): >>>>>> if req.myflag: >>>>>> .. >>>>>> >>>>>> Graham >>>>>> >>>>>> On 26/01/2007, at 7:09 PM, export at hope.cz wrote: >>>>>> >>>>>>> Graham , >>>>>>> Thank you for your reply and help. >>>>>>> I tried the way you suggested but I received the error >>>>>>> >>>>>>> AttributeError: 'mp_request' object has no attribute 'myflag' >>>>>>> >>>>>>> Can you please help? >>>>>>> Thank you >>>>>>> Lad. >>>>>>> >>>>>>> >>>>>>>> On 26/01/2007, at 2:45 AM, export at hope.cz wrote: >>>>>>>> >>>>>>>>> Depending on a value being calculated in input filter, >>>>>>>>> I will have to make a decission in request handler. >>>>>>>>> What is a way to find out the value of the variable from input >>>>>>>>> filter in request handler? >>>>>>>> I believe this was mentioned before. >>>>>>>> >>>>>>>> In filter, set an attribute on the request object: >>>>>>>> >>>>>>>> def inputfilter(filter): >>>>>>>> ... >>>>>>>> filter.req.myflag = True >>>>>>>> ... >>>>>>>> >>>>>>>> In the request handler, you can then access that variable. >>>>>>>> >>>>>>>> def handler(req): >>>>>>>> ... >>>>>>>> if req.myflag: >>>>>>>> ... >>>>>>>> ... >>>>>>>> >>>>>>>> Graham >>>>>> >>>>> >>>>> ------- End of forwarded message ------- > > > _______________________________________________ > Mod_python mailing list > Mod_python at modpython.org > http://mailman.modpython.org/mailman/listinfo/mod_python >
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