class std_activation :This class is an implementation of classical CGI. When the object is created, the CGI arguments are read from the input channel, and it is arranged that the generated page is printed to the output channel. If?env:Netcgi_env.cgi_environment -> ?processing:string -> Netmime.mime_header -> argument_processing -> ?operating_type:operating_type -> unit ->Netcgi_types.cgi_activation
env is
not explicitly passed, the stdin descriptor is used as input,
and the stdout descriptor is used as output channel (conforming
to the CGI standard); depending on the process environment variables,
either the real CGI connector is activated, or the class falls back
to a test mode where the user can interactively test the CGI
application.
By passing env, the class can be configured
differently, using other channels for I/O, or other sources for
the CGI environment variables.
The argument processing determines how the CGI argument objects
are created (and where). The default is fun _ _ -> `Memory.
The argument operating_type determines whether an additional
transaction buffer is created. By default, no such buffer is
created (`Direct "").
Example:
let cgi = new std_activation() in
let foo_arg = cgi # argument_value "foo" in
cgi # set_header ~content_type:"text/plain"();
cgi # output # output_string ("foo = " ^ foo_arg);
cgi # commit_work(); (* implies "flush" *)
By default, the class only processes POST data encoded as
"application/x-www-form-urlencoded" and "multipart/form-data".
If the configuration of the environment permits it, data
of other types are accepted, too, and one argument "BODY"
is created containing the unparsed data.