Thanks Michael!
Looks like libwebsockets *is* ported to NuttX already - but you have to
enable MIT licensed software (and a few other things to do with TLS and
CRYPTO stuff) first, but it could well be an option: I'll take a look :-)
In the meantime I have a theory as to why the thttp CGI scripts/apps
fail to send output to the browser: I think the app task is killed
before the queued output data is sent. I will look at this today and it
could be that a fix is easier than I feared.
Regards,
TimH
On 27/06/2025 07:47, Michael Jung wrote:
Hi Tim,
you wrote:
> Anyone know of a lightweight webserver that will handle POST and
that runs under NuttX?
I was very impressed by libwebsockets, when I was using it on NuttX a
couple of years ago. It is not exactly lightweight, and much more than
a webserver, but it is a perfect infrastructure component for
implementing Web UIs for embedded applications. There is probably
quite some porting effort to do, but you might want to have a look:
https://github.com/warmcat/libwebsockets
Bye,
Michael
On Thu, Jun 26, 2025 at 8:07 PM Tim Hardisty <t...@jti.uk.com.invalid>
wrote:
Update as I am back on this after a break and still stumped.
uIP:
* only supports GET method
* HTML5 maps PUT to GET which is why I found either caused my
CGI app to run
* But no support for getting the data itself as...it only
supports the GET method
thttpd:
* supports POST, and calls my CGI app where I can save the file
that's sent
* Any calls to puts or printf from within the CGI app fail.
There are pipes in place for stdout but the piped/opened file
reports as unwriteable.
So uIP no use without work; thttpd is broken (issue raised on github)
Anyone know of a lightweight webserver that will handle POST and
that runs under NuttX?
On 05/06/2025 16:50, Tim Hardisty wrote:
Make that "PUT" not "GET", of course.
On 05/06/2025 15:42, Tim Hardisty wrote:
And...the magic answer to make this form actually work with the
uIP webserver is that:
1. the form's "method" has to be GET not POST otherwise the
URL CGI
"call" is not made visible/sent correctly/processed.
2. the webserver has to be configured with URL/CGI mapping enabled
(CONFIG_NETUTILS_CGIPATH)
On 31/05/2025 11:16, Tim Hardisty wrote:
I'm using the netutils uIP webserver to provide a simple
interface, served by my board, for configuration, log
downloads, firmware updates, etc.
Forgive me if the terminology is wrong here, but I am trying to
find documentation - NuttX or elsewhere - about the %! "tag"
that denotes a call to a CGI function. Specifically, I am
trying to add a form that calls a script from a button, where
do-firmware-update is my CGI function:
<form action="%! do-firmware-update" method="post"
enctype="multipart/form-data" accept-charset="UTF-8">
This gets served with nothing after the first opening quote
character on this line so i am assuming I am "calling" the
script incorrectly but can't find anything anywhere to tell me
how to do this.
Can anyone point me in the right direction?
Thanks!
TimH
--
Regards,
Tim Hardisty
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