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//! Configuration options for [`ArtiNativeKeystore`](crate::ArtiNativeKeystore)
use std::path::PathBuf;
pub use tor_config::{CfgPath, CfgPathError, ConfigBuildError, ConfigurationSource, Reconfigure};
use derive_builder::Builder;
use serde::{Deserialize, Serialize};
use tor_config::{impl_standard_builder, BoolOrAuto};
/// [`ArtiNativeKeystore`](crate::ArtiNativeKeystore) configuration
#[derive(Debug, Clone, Builder, Eq, PartialEq, Serialize, Deserialize)]
#[builder(derive(Serialize, Deserialize, Debug))]
#[builder(build_fn(validate = "Self::validate", error = "ConfigBuildError"))]
#[non_exhaustive]
#[builder_struct_attr(non_exhaustive)]
pub struct ArtiNativeKeystoreConfig {
/// Whether keystore use is enabled.
#[builder(default)]
enabled: BoolOrAuto,
/// Location on disk for the Arti keystore.
#[builder(setter(into), default = "default_keystore_dir()")]
path: CfgPath,
}
impl_standard_builder! { ArtiNativeKeystoreConfig }
impl ArtiNativeKeystoreConfigBuilder {
/// Check that the keystore configuration is valid
#[cfg(not(feature = "keymgr"))]
#[allow(clippy::unnecessary_wraps)]
fn validate(&self) -> Result<(), ConfigBuildError> {
use BoolOrAuto as BoA;
// Keystore support is disabled unless the `keymgr` feature is enabled.
if self.enabled == Some(BoA::Explicit(true)) {
return Err(ConfigBuildError::Inconsistent {
fields: ["enabled"].map(Into::into).into_iter().collect(),
problem: "keystore enabled=true, but keymgr feature not enabled".into(),
});
}
Ok(())
}
/// Check that the keystore configuration is valid
#[cfg(feature = "keymgr")]
#[allow(clippy::unnecessary_wraps)]
fn validate(&self) -> Result<(), ConfigBuildError> {
Ok(())
}
}
impl ArtiNativeKeystoreConfig {
/// Try to expand `path` to be a path buffer.
#[allow(clippy::unnecessary_wraps)] // needed because of the experimental-api branch
pub fn expand_keystore_dir(&self) -> Result<PathBuf, ConfigBuildError> {
self.path.path().map_err(|e| ConfigBuildError::Invalid {
field: "path".to_owned(),
problem: e.to_string(),
})
}
/// Whether the keystore is enabled.
pub fn is_enabled(&self) -> bool {
let default = cfg!(feature = "keymgr");
self.enabled.as_bool().unwrap_or(default)
}
}
/// Return the default keystore directory.
fn default_keystore_dir() -> CfgPath {
CfgPath::new("${ARTI_LOCAL_DATA}/keystore".to_owned())
}
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