compendium/src/config.rs

107 lines
2.8 KiB
Rust

use std::fmt::Display;
use std::net::SocketAddr;
use std::path::PathBuf;
use crate::{Error, Result};
use figment::providers::{Env, Format, Serialized, Toml};
use serde::{Deserialize, Serialize};
use figment::Figment;
#[derive(Debug, Deserialize, Serialize)]
pub struct DBConfig {
user: String,
password: Option<String>,
host: String,
name: String,
string: Option<String>,
}
impl Display for DBConfig {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(
f,
"{}",
self.generate_db_string(true).map_err(|_| std::fmt::Error)?
)
}
}
impl Default for DBConfig {
fn default() -> Self {
DBConfig {
user: "postgres".to_owned(),
password: None,
host: "localhost".to_owned(),
name: "compendium".to_owned(),
string: None,
}
}
}
impl DBConfig {
pub fn generate_db_string(&self, ofuscate: bool) -> Result<String> {
if let Some(value) = &self.string {
return Ok(value.clone());
}
let db_password = if ofuscate {
let mut db_password = self
.password
.clone()
.ok_or(Error::Runtime("No database password provided"))?;
let password_length = db_password.len();
let visible_characters = 4;
if password_length <= visible_characters {
// Hide all the password
let filler = "*".repeat(password_length);
db_password.replace_range(0..password_length, &filler.to_owned());
} else {
// Hide only a portion of the password
let filler = "*".repeat(password_length - visible_characters);
db_password.replace_range(visible_characters..password_length, &filler.to_owned());
};
db_password
} else {
self.password
.clone()
.ok_or(Error::Runtime("No database password provided"))?
};
let db_string = format!(
"postgres://{}:{}@{}/{}",
self.user, db_password, self.host, self.name,
);
Ok(db_string.to_owned())
}
}
#[derive(Debug, Deserialize, Serialize)]
pub struct Config {
pub db: DBConfig,
pub addr: SocketAddr,
}
impl Default for Config {
fn default() -> Self {
Config {
db: DBConfig::default(),
addr: "0.0.0.0:3000".parse().unwrap(),
}
}
}
impl Config {
pub fn new(path: PathBuf) -> Result<Self> {
let config: Config = Figment::from(Serialized::defaults(Config::default()))
.merge(Toml::file(path))
.merge(Env::prefixed("CPD_").split("_"))
.extract()?;
Ok(config)
}
}