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pub const DEFAULT_CONFIG_FILE: &str = "/etc/yubico/yubikeypiv.conf";
use std::{
env,
fs::File,
io::{BufRead, BufReader},
};
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
pub enum Source {
User,
Admin,
Default,
}
#[derive(Copy, Clone, Debug)]
pub struct BoolValue {
pub value: bool,
pub source: Source,
}
impl BoolValue {
pub fn get(key: &str, def: bool) -> Self {
let mut setting = get_setting_from_file(key);
if setting.source == Source::Default {
setting = get_setting_from_env(key);
}
if setting.source == Source::Default {
setting.value = def;
}
setting
}
}
fn get_setting_from_file(key: &str) -> BoolValue {
let mut setting: BoolValue = BoolValue {
value: false,
source: Source::Default,
};
let file = match File::open(DEFAULT_CONFIG_FILE) {
Ok(f) => f,
Err(_) => return setting,
};
for line in BufReader::new(file).lines() {
let line = match line {
Ok(line) => line,
_ => continue,
};
if line.starts_with('#') || line.starts_with('\r') || line.starts_with('\n') {
continue;
}
let (name, value) = {
let mut parts = line.splitn(1, '=');
let name = parts.next();
let value = parts.next();
match (name, value, parts.next()) {
(Some(name), Some(value), None) => (name.trim(), value.trim()),
_ => continue,
}
};
if name == key {
setting.source = Source::Admin;
setting.value = value == "1" || value == "true";
break;
}
}
setting
}
fn get_setting_from_env(key: &str) -> BoolValue {
let mut setting: BoolValue = BoolValue {
value: false,
source: Source::Default,
};
if let Ok(value) = env::var(format!("YUBIKEY_PIV_{}", key)) {
setting.source = Source::User;
setting.value = value == "1" || value == "true";
}
setting
}