Re: [lwip-users] httpd: how to implement AJAX

[address@hidden]

Giuseppe Modugno wrote:
> The prototype for SSI callbacks is:
> [..]
> I don't see any reference to query string parameters. So how to select 
> the right action?

Sorry for the confusion. This is a mix of resource optimization, missing 
documentation and maybe missing framework functions.

The idea is that we don't want to keep the http request pbuf(s) around 
until the end of the SSI file is transmitted (which might be long).
Instead, this is done in three steps:
- fs_open() calls fs_state_init(file, name) to create an object big 
enough to hold everything you'd need for 'file'
  (for custom files, you'll have to call this yourself)
- httpd_cgi_handler() can parse everything needed and store it in this 
object
- the SSI handler gets this object, too, and can access the content required
(- or alternatively, in a custom read function, you might direclty 
access file->state)

I just saw that the documentation for httpd_cgi_handler() was just cut 
off in the middle of a sentence.
I've added a short description there.

My plan is to have https examples for the next release...

Simon