use std::{fmt, rc::Rc};
use ntex::{io::IoBoxed, time::Seconds};
use super::codec as mqtt;
use super::shared::MqttShared;
use super::sink::MqttSink;
const DEFAULT_KEEPALIVE: Seconds = Seconds(30);
pub struct Handshake {
io: IoBoxed,
pkt: Box<mqtt::Connect>,
pkt_size: u32,
shared: Rc<MqttShared>,
}
impl Handshake {
pub(crate) fn new(
pkt: Box<mqtt::Connect>,
pkt_size: u32,
io: IoBoxed,
shared: Rc<MqttShared>,
) -> Self {
Self { io, pkt, pkt_size, shared }
}
#[inline]
pub fn packet(&self) -> &mqtt::Connect {
&self.pkt
}
#[inline]
pub fn packet_mut(&mut self) -> &mut mqtt::Connect {
&mut self.pkt
}
#[inline]
pub fn packet_size(&self) -> u32 {
self.pkt_size
}
#[inline]
pub fn io(&self) -> &IoBoxed {
&self.io
}
pub fn sink(&self) -> MqttSink {
MqttSink::new(self.shared.clone())
}
pub fn ack<St>(self, st: St, session_present: bool) -> HandshakeAck<St> {
let Handshake { io, shared, pkt, .. } = self;
let keepalive = if pkt.keep_alive != 0 {
Seconds((pkt.keep_alive >> 1).checked_add(pkt.keep_alive).unwrap_or(u16::MAX))
} else {
DEFAULT_KEEPALIVE
};
HandshakeAck {
io,
shared,
keepalive,
session_present,
session: Some(st),
max_send: None,
return_code: mqtt::ConnectAckReason::ConnectionAccepted,
}
}
pub fn identifier_rejected<St>(self) -> HandshakeAck<St> {
HandshakeAck {
io: self.io,
shared: self.shared,
session: None,
session_present: false,
keepalive: DEFAULT_KEEPALIVE,
max_send: None,
return_code: mqtt::ConnectAckReason::IdentifierRejected,
}
}
pub fn bad_username_or_pwd<St>(self) -> HandshakeAck<St> {
HandshakeAck {
io: self.io,
shared: self.shared,
session: None,
session_present: false,
max_send: None,
keepalive: DEFAULT_KEEPALIVE,
return_code: mqtt::ConnectAckReason::BadUserNameOrPassword,
}
}
pub fn not_authorized<St>(self) -> HandshakeAck<St> {
HandshakeAck {
io: self.io,
shared: self.shared,
session: None,
session_present: false,
max_send: None,
keepalive: DEFAULT_KEEPALIVE,
return_code: mqtt::ConnectAckReason::NotAuthorized,
}
}
pub fn service_unavailable<St>(self) -> HandshakeAck<St> {
HandshakeAck {
io: self.io,
shared: self.shared,
session: None,
session_present: false,
max_send: None,
keepalive: DEFAULT_KEEPALIVE,
return_code: mqtt::ConnectAckReason::ServiceUnavailable,
}
}
}
impl fmt::Debug for Handshake {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
self.pkt.fmt(f)
}
}
pub struct HandshakeAck<St> {
pub(crate) io: IoBoxed,
pub(crate) session: Option<St>,
pub(crate) session_present: bool,
pub(crate) return_code: mqtt::ConnectAckReason,
pub(crate) shared: Rc<MqttShared>,
pub(crate) keepalive: Seconds,
pub(crate) max_send: Option<u16>,
}
impl<St> HandshakeAck<St> {
pub fn idle_timeout(mut self, timeout: Seconds) -> Self {
self.keepalive = timeout;
self
}
pub fn max_send(mut self, val: u16) -> Self {
self.max_send = Some(val);
self
}
#[deprecated]
#[doc(hidden)]
pub fn max_outgoing(mut self, val: u16) -> Self {
self.max_send = Some(val);
self
}
}