Re: [Cppcms-users] upload progress

[Artyom <art...@ya...>]

Hello,

Currently, all upload is done without involvement of the user application,
the user application is called only after processing all POST data.
But better upload handling should be implemented in RC1, as part of better 
upload validation.

It is in task list, see:

  
http://art-blog.no-ip.info/wikipp/en/page/cppcms_1x_tasks#Implement+Pre-Upload+file+validation+-+Mrc.


Generally as part of API I think it would be possible to add some upload hooks 
so the
application can have better control over upload process and so it would be able 
to do anything,
it wants.

Additional option may be give to give an application full control over 
processing POST data.
So in some cases, application could be "called" before actual POST data is 
transferred.

In such case would be able to handle all notification as in regular comet 
application.

But this requires work and API design. So if you can propose some suggestions 
and requirements for
such API, they may be actually implemented in CppCMS :-) 

Best,
  Artyom

P.S.: Isn't java-script has an ability to do such things on client side?


> 
> hi,
> 
> i need (must have) the possibility to know how much data of an  ongoing
> post to the cppcms application has been transmitted. i need to be  able
> to give somekind of upload progress feedback. when i'm not mistaken  this
> is not possible using cpcms - is there any workaround for that? or is  it
> possible to implement something like that?
> 
> maybe somekind of  instance which can be queried for in progress post
> transfers using some kind  of i which the js application also uses to
> transmit the file in the post and  returns the number of bytes
> transmitted and if available the full size to be  transmitted?
> 
> any ideas?
> 
> frank.
> 
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