Files
donutbrowser/src-tauri/src/xray/error.rs
T
2026-08-06 14:39:53 -07:00

69 lines
2.3 KiB
Rust

use thiserror::Error;
pub type XrayResult<T> = Result<T, XrayError>;
#[derive(Debug, Clone, PartialEq, Eq, Error)]
pub enum XrayError {
#[error("invalid VLESS URI")]
InvalidUri,
#[error("URI scheme must be vless")]
UnsupportedScheme,
#[error("missing required field: {0}")]
MissingField(&'static str),
#[error("invalid field: {field} ({reason})")]
InvalidField {
field: &'static str,
reason: &'static str,
},
#[error("unsupported query parameter: {0}")]
UnsupportedParameter(String),
#[error("duplicate query parameter: {0}")]
DuplicateParameter(String),
#[error("unsupported value for {field}; expected {expected}")]
UnsupportedValue {
field: &'static str,
expected: &'static str,
},
#[error("failed to serialize Xray client configuration")]
Serialization,
}
impl XrayError {
/// A stable, translatable identifier for *why* a URI was rejected.
///
/// Donut supports one VLESS shape — REALITY + XTLS Vision over TCP — so most
/// rejections are "your setup is a kind we do not support", not "you made a
/// typo". The frontend turns these into a sentence naming the unsupported
/// part; without them every rejection reads as a malformed URI and a user
/// with a working WebSocket or plain-TLS server has no idea why it failed.
pub fn reason_code(&self) -> &'static str {
match self {
Self::UnsupportedScheme => "scheme",
Self::UnsupportedValue { field, .. } | Self::InvalidField { field, .. } => match *field {
"security" => "security",
"flow" => "flow",
"type" => "transport",
"encryption" => "encryption",
"headerType" => "headerType",
"fp" => "fingerprint",
// A malformed sni/public key is the same user-facing problem as a
// missing one, so it earns the same specific help rather than the
// generic "invalid URI".
"sni" | "server_name" => "sni",
"pbk" | "public_key" => "publicKey",
_ => "malformed",
},
Self::MissingField(field) => match *field {
"sni" => "sni",
"pbk" => "publicKey",
"security" => "security",
"flow" => "flow",
_ => "malformed",
},
Self::UnsupportedParameter(_) => "parameter",
Self::DuplicateParameter(_) => "malformed",
Self::InvalidUri | Self::Serialization => "malformed",
}
}
}