termscp/src/system/keys/mod.rs

93 lines
2.9 KiB
Rust

//! ## KeyStorage
//!
//! `keystorage` provides the trait to manipulate to a KeyStorage
/**
* MIT License
*
* termscp - Copyright (c) 2021 Christian Visintin
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
// Storages
pub mod filestorage;
#[cfg(any(target_os = "windows", target_os = "macos"))]
pub mod keyringstorage;
/// ## KeyStorageError
///
/// defines the error type for the `KeyStorage`
#[derive(PartialEq, std::fmt::Debug)]
pub enum KeyStorageError {
//BadKey,
ProviderError,
NoSuchKey,
}
impl std::fmt::Display for KeyStorageError {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
let err: String = String::from(match &self {
//KeyStorageError::BadKey => "Bad key syntax",
KeyStorageError::ProviderError => "Provider service error",
KeyStorageError::NoSuchKey => "No such key",
});
write!(f, "{}", err)
}
}
/// ## KeyStorage
///
/// this traits provides the methods to communicate and interact with the key storage.
pub trait KeyStorage {
/// ### get_key
///
/// Retrieve key from the key storage.
/// The key might be acccess through an identifier, which identifies
/// the key in the storage
fn get_key(&self, storage_id: &str) -> Result<String, KeyStorageError>;
/// ### set_key
///
/// Set the key into the key storage
fn set_key(&self, storage_id: &str, key: &str) -> Result<(), KeyStorageError>;
/// is_supported
///
/// Returns whether the key storage is supported on the host system
fn is_supported(&self) -> bool;
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_system_keys_mod_errors() {
assert_eq!(
format!("{}", KeyStorageError::ProviderError),
String::from("Provider service error")
);
assert_eq!(
format!("{}", KeyStorageError::NoSuchKey),
String::from("No such key")
);
}
}