uv/crates/uv-configuration/src/trusted_host.rs

149 lines
3.9 KiB
Rust

use serde::{Deserialize, Deserializer};
use std::str::FromStr;
use url::Url;
/// A trusted host, which could be a host or a host-port pair.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct TrustedHost {
scheme: Option<String>,
host: String,
port: Option<u16>,
}
impl TrustedHost {
/// Returns `true` if the [`Url`] matches this trusted host.
pub fn matches(&self, url: &Url) -> bool {
if self
.scheme
.as_ref()
.is_some_and(|scheme| scheme != url.scheme())
{
return false;
}
if self.port.is_some_and(|port| url.port() != Some(port)) {
return false;
}
if Some(self.host.as_ref()) != url.host_str() {
return false;
}
true
}
}
impl<'de> Deserialize<'de> for TrustedHost {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
#[derive(Deserialize)]
struct Inner {
scheme: Option<String>,
host: String,
port: Option<u16>,
}
serde_untagged::UntaggedEnumVisitor::new()
.string(|string| TrustedHost::from_str(string).map_err(serde::de::Error::custom))
.map(|map| {
map.deserialize::<Inner>().map(|inner| TrustedHost {
scheme: inner.scheme,
host: inner.host,
port: inner.port,
})
})
.deserialize(deserializer)
}
}
impl serde::Serialize for TrustedHost {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::ser::Serializer,
{
let s = self.to_string();
serializer.serialize_str(&s)
}
}
#[derive(Debug, thiserror::Error)]
pub enum TrustedHostError {
#[error("missing host for `--trusted-host`: `{0}`")]
MissingHost(String),
#[error("invalid port for `--trusted-host`: `{0}`")]
InvalidPort(String),
}
impl std::str::FromStr for TrustedHost {
type Err = TrustedHostError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
// Detect scheme.
let (scheme, s) = if let Some(s) = s.strip_prefix("https://") {
(Some("https".to_string()), s)
} else if let Some(s) = s.strip_prefix("http://") {
(Some("http".to_string()), s)
} else {
(None, s)
};
let mut parts = s.splitn(2, ':');
// Detect host.
let host = parts
.next()
.and_then(|host| host.split('/').next())
.map(ToString::to_string)
.ok_or_else(|| TrustedHostError::MissingHost(s.to_string()))?;
// Detect port.
let port = parts
.next()
.map(str::parse)
.transpose()
.map_err(|_| TrustedHostError::InvalidPort(s.to_string()))?;
Ok(Self { scheme, host, port })
}
}
impl std::fmt::Display for TrustedHost {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
if let Some(scheme) = &self.scheme {
write!(f, "{}://{}", scheme, self.host)?;
} else {
write!(f, "{}", self.host)?;
}
if let Some(port) = self.port {
write!(f, ":{port}")?;
}
Ok(())
}
}
#[cfg(feature = "schemars")]
impl schemars::JsonSchema for TrustedHost {
fn schema_name() -> String {
"TrustedHost".to_string()
}
fn json_schema(_gen: &mut schemars::gen::SchemaGenerator) -> schemars::schema::Schema {
schemars::schema::SchemaObject {
instance_type: Some(schemars::schema::InstanceType::String.into()),
metadata: Some(Box::new(schemars::schema::Metadata {
description: Some("A host or host-port pair.".to_string()),
..schemars::schema::Metadata::default()
})),
..schemars::schema::SchemaObject::default()
}
.into()
}
}
#[cfg(test)]
mod tests;