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use std::{fmt, io, net::AddrParseError, sync::PoisonError};
use crate::client::connection::ConnectionId;
use bevy::prelude::{Deref, DerefMut, Resource};
use rcgen::RcgenError;
use tokio::runtime::Runtime;
use self::channel::ChannelId;
pub const DEFAULT_MESSAGE_QUEUE_SIZE: usize = 150;
pub const DEFAULT_KILL_MESSAGE_QUEUE_SIZE: usize = 10;
pub const DEFAULT_KEEP_ALIVE_INTERVAL_S: u64 = 4;
pub type ClientId = u64;
pub mod channel;
#[derive(Resource, Deref, DerefMut)]
pub struct AsyncRuntime(pub(crate) Runtime);
pub(crate) type InternalConnectionRef = quinn::Connection;
/// Enum with possibles errors that can occur in Bevy Quinnet
#[derive(thiserror::Error, Debug)]
pub enum QuinnetError {
#[error("IP/Socket address is invalid")]
InvalidAddress(#[from] AddrParseError),
#[error("Failed to generate a self-signed certificate")]
CertificateGenerationFailed(#[from] RcgenError),
#[error("Client with id `{0}` is unknown")]
UnknownClient(ClientId),
#[error("Client with id `{0}` is already disconnected")]
ClientAlreadyDisconnected(ClientId),
#[error("Connection with id `{0}` is unknown")]
UnknownConnection(ConnectionId),
#[error("Connection is 'disconnected'")]
ConnectionClosed,
#[error("Connection is already closed")]
ConnectionAlreadyClosed,
#[error("Channel with id `{0}` is unknown")]
UnknownChannel(ChannelId),
#[error("Channel is already closed")]
ChannelAlreadyClosed,
#[error("The connection has no default channel")]
NoDefaultChannel,
#[error("Endpoint is already closed")]
EndpointAlreadyClosed,
#[error("Failed serialization")]
Serialization,
#[error("Failed deserialization")]
Deserialization,
#[error("The data could not be sent on the channel because the channel is currently full and sending would require blocking")]
FullQueue,
#[error(
"The receiving half of the internal channel was explicitly closed or has been dropped"
)]
InternalChannelClosed,
#[error("The hosts file is invalid")]
InvalidHostFile,
#[error("Lock acquisition failure")]
LockAcquisitionFailure,
#[error("A Certificate action was already sent for a CertificateInteractionEvent")]
CertificateActionAlreadyApplied,
#[error("Failed to read/write file(s)")]
IoError(#[from] io::Error),
#[error("Rustls protocol error")]
RustlsError(#[from] rustls::Error),
}
impl<T> From<PoisonError<T>> for QuinnetError {
fn from(_: PoisonError<T>) -> Self {
Self::LockAcquisitionFailure
}
}
/// SHA-256 hash of the certificate data in DER form
#[derive(Debug, Clone, Eq, PartialEq)]
pub struct CertificateFingerprint([u8; 32]);
impl CertificateFingerprint {
pub fn new(buf: [u8; 32]) -> Self {
CertificateFingerprint(buf)
}
pub fn to_base64(&self) -> String {
base64::encode(&self.0)
}
}
impl From<&rustls::Certificate> for CertificateFingerprint {
fn from(cert: &rustls::Certificate) -> CertificateFingerprint {
let hash = ring::digest::digest(&ring::digest::SHA256, &cert.0);
let fingerprint_bytes = hash.as_ref().try_into().unwrap();
CertificateFingerprint(fingerprint_bytes)
}
}
impl fmt::Display for CertificateFingerprint {
#[inline]
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
fmt::Display::fmt(&self.to_base64(), f)
}
}
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