How to make the handlers type module like ngx_stab_status

[u5surf]

Hi, I would like to implement some module with this. Thus anyone who can make some module as known as The Handler like ngx_stub_status?

The details of the handler type module is here.
https://www.evanmiller.org/nginx-modules-guide.html#handlers

We can see The Filter examples in the example directory. But we cannot find any The Handler type modules like
https://github.com/nginx/nginx/blob/master/src/http/modules/ngx_http_stub_status_module.c

Especially, We don't have any clue to implement setting the handler function like
https://github.com/nginx/nginx/blob/5b8a5c08ce28639e788734b2528faad70baa113c/src/http/modules/ngx_http_stub_status_module.c#L217-L226
.

[bavshin-f5]

With the current git master, the C code for setting the content handler translates to the following Rust:

use ngx::http::HttpModuleLocationConf;

http_request_handler!(example_handler, |_r: &mut ngx::http::Request| {
    ngx::http::HTTPStatus::FORBIDDEN.into()
});

extern "C" fn example_set_handler(
    cf: *mut ngx_conf_t,
    _cmd: *mut ngx_command_t,
    _conf: *mut c_void,
) -> *mut c_char {
    // SAFETY: configuration handlers always receive valid `cf`.
    let cf = unsafe { &mut *cf };

    let clcf = ngx::http::NgxHttpCoreModule::location_conf_mut(cf).expect("core location conf");
    clcf.handler = Some(example_handler);

    ngx::core::NGX_CONF_OK
}

Configuration access traits are a recent addition though, so code for 0.4.1 would look closer to the C variant.