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//! The RFC959 Allocate (`ALLO`) command
//
// This command may be required by some servers to reserve
// sufficient storage to accommodate the new file to be
// transferred. The argument shall be a decimal integer
// representing the number of bytes (using the logical byte
// size) of storage to be reserved for the file. For files
// sent with record or page structure a maximum record or page
// size (in logical bytes) might also be necessary; this is
// indicated by a decimal integer in a second argument field of
// the command. This second argument is optional, but when
// present should be separated from the first by the three
// Telnet characters <SP> R <SP>. This command shall be
// followed by a STORe or APPEnd command. The ALLO command
// should be treated as a NOOP (no operation) by those servers
// which do not require that the maximum size of the file be
// declared beforehand, and those servers interested in only
// the maximum record or page size should accept a dummy value
// in the first argument and ignore it.
use crate::{
auth::UserDetail,
server::controlchan::{
Reply, ReplyCode,
error::ControlChanError,
handler::{CommandContext, CommandHandler},
},
storage::{Metadata, StorageBackend},
};
use async_trait::async_trait;
#[derive(Debug)]
pub struct Allo;
#[async_trait]
impl<Storage, User> CommandHandler<Storage, User> for Allo
where
User: UserDetail + 'static,
Storage: StorageBackend<User> + 'static,
Storage::Metadata: Metadata,
{
#[tracing_attributes::instrument]
async fn handle(&self, _args: CommandContext<Storage, User>) -> Result<Reply, ControlChanError> {
// ALLO is obsolete and we'll just ignore it.
Ok(Reply::new(ReplyCode::CommandOkayNotImplemented, "Ignored"))
}
}