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use derive_more::AsRef;
use serde::{Deserialize, Serialize};
use tor_llcrypto::pk;
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Hash, Ord, PartialOrd)]
pub(crate) struct IdPair {
pub(crate) ed25519: pk::ed25519::Ed25519Identity,
pub(crate) rsa: pk::rsa::RsaIdentity,
}
#[derive(Clone, Debug, Eq, PartialEq, Hash, Ord, PartialOrd, AsRef)]
pub(crate) struct FallbackId(pub(crate) IdPair);
impl FallbackId {
pub(crate) fn new(ed25519: pk::ed25519::Ed25519Identity, rsa: pk::rsa::RsaIdentity) -> Self {
Self(IdPair { ed25519, rsa })
}
pub(crate) fn from_chan_target<T: tor_linkspec::ChanTarget>(target: &T) -> Self {
Self::new(*target.ed_identity(), *target.rsa_identity())
}
}
#[derive(Clone, Debug, Serialize, Deserialize, Eq, PartialEq, Hash, Ord, PartialOrd, AsRef)]
#[serde(transparent)]
pub(crate) struct GuardId(pub(crate) IdPair);
impl GuardId {
pub(crate) fn new(ed25519: pk::ed25519::Ed25519Identity, rsa: pk::rsa::RsaIdentity) -> Self {
Self(IdPair { ed25519, rsa })
}
pub(crate) fn from_chan_target<T: tor_linkspec::ChanTarget>(target: &T) -> Self {
Self::new(*target.ed_identity(), *target.rsa_identity())
}
}
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub(crate) enum FirstHopIdInner {
Guard(GuardId),
Fallback(FallbackId),
}
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd)]
pub struct FirstHopId(pub(crate) FirstHopIdInner);
impl From<GuardId> for FirstHopId {
fn from(id: GuardId) -> Self {
Self(FirstHopIdInner::Guard(id))
}
}
impl From<FallbackId> for FirstHopId {
fn from(id: FallbackId) -> Self {
Self(FirstHopIdInner::Fallback(id))
}
}
impl AsRef<IdPair> for FirstHopId {
fn as_ref(&self) -> &IdPair {
match &self.0 {
FirstHopIdInner::Guard(id) => id.as_ref(),
FirstHopIdInner::Fallback(id) => id.as_ref(),
}
}
}
impl FirstHopId {
pub fn get_relay<'a>(&self, netdir: &'a tor_netdir::NetDir) -> Option<tor_netdir::Relay<'a>> {
let id = self.as_ref();
netdir.by_id_pair(&id.ed25519, &id.rsa)
}
}