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Original file line number | Diff line number | Diff line change |
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use crate::tunnel::{LocalProtocol, RemoteAddr}; | ||
use jsonwebtoken::{Algorithm, DecodingKey, EncodingKey, Header, TokenData, Validation}; | ||
use once_cell::sync::Lazy; | ||
use serde::{Deserialize, Serialize}; | ||
use std::collections::HashSet; | ||
use std::ops::Deref; | ||
use url::Host; | ||
use uuid::Uuid; | ||
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||
pub static JWT_HEADER_PREFIX: &str = "authorization.bearer."; | ||
static JWT_SECRET: &[u8; 15] = b"champignonfrais"; | ||
static JWT_KEY: Lazy<(Header, EncodingKey)> = | ||
Lazy::new(|| (Header::new(Algorithm::HS256), EncodingKey::from_secret(JWT_SECRET))); | ||
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||
static JWT_DECODE: Lazy<(Validation, DecodingKey)> = Lazy::new(|| { | ||
let mut validation = Validation::new(Algorithm::HS256); | ||
validation.required_spec_claims = HashSet::with_capacity(0); | ||
(validation, DecodingKey::from_secret(JWT_SECRET)) | ||
}); | ||
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||
#[derive(Debug, Clone, Serialize, Deserialize)] | ||
pub struct JwtTunnelConfig { | ||
pub id: String, // tunnel id | ||
pub p: LocalProtocol, // protocol to use | ||
pub r: String, // remote host | ||
pub rp: u16, // remote port | ||
} | ||
|
||
impl JwtTunnelConfig { | ||
fn new(request_id: Uuid, dest: &RemoteAddr) -> Self { | ||
Self { | ||
id: request_id.to_string(), | ||
p: match dest.protocol { | ||
LocalProtocol::Tcp { .. } => dest.protocol.clone(), | ||
LocalProtocol::Udp { .. } => dest.protocol.clone(), | ||
LocalProtocol::Stdio => LocalProtocol::Tcp { proxy_protocol: false }, | ||
LocalProtocol::Socks5 { .. } => LocalProtocol::Tcp { proxy_protocol: false }, | ||
LocalProtocol::HttpProxy { .. } => dest.protocol.clone(), | ||
LocalProtocol::ReverseTcp => LocalProtocol::ReverseTcp, | ||
LocalProtocol::ReverseUdp { .. } => dest.protocol.clone(), | ||
LocalProtocol::ReverseSocks5 { .. } => dest.protocol.clone(), | ||
LocalProtocol::TProxyTcp => LocalProtocol::Tcp { proxy_protocol: false }, | ||
LocalProtocol::TProxyUdp { timeout } => LocalProtocol::Udp { timeout }, | ||
LocalProtocol::Unix { .. } => LocalProtocol::Tcp { proxy_protocol: false }, | ||
LocalProtocol::ReverseUnix { .. } => dest.protocol.clone(), | ||
LocalProtocol::ReverseHttpProxy { .. } => dest.protocol.clone(), | ||
}, | ||
r: dest.host.to_string(), | ||
rp: dest.port, | ||
} | ||
} | ||
} | ||
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||
pub fn tunnel_to_jwt_token(request_id: Uuid, tunnel: &RemoteAddr) -> String { | ||
let cfg = JwtTunnelConfig::new(request_id, tunnel); | ||
let (alg, secret) = JWT_KEY.deref(); | ||
jsonwebtoken::encode(alg, &cfg, secret).unwrap_or_default() | ||
} | ||
|
||
pub fn jwt_token_to_tunnel(token: &str) -> anyhow::Result<TokenData<JwtTunnelConfig>> { | ||
let (validation, decode_key) = JWT_DECODE.deref(); | ||
let jwt: TokenData<JwtTunnelConfig> = jsonwebtoken::decode(token, decode_key, validation)?; | ||
Ok(jwt) | ||
} | ||
|
||
impl TryFrom<JwtTunnelConfig> for RemoteAddr { | ||
type Error = anyhow::Error; | ||
fn try_from(jwt: JwtTunnelConfig) -> anyhow::Result<Self> { | ||
Ok(Self { | ||
protocol: jwt.p, | ||
host: Host::parse(&jwt.r)?, | ||
port: jwt.rp, | ||
}) | ||
} | ||
} |
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