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use std::{io::prelude::*, path::PathBuf};
use config::{Config, Environment, File as ConfigFile, FileFormat};
use eyre::{bail, eyre, Context, Result};
use fs_err::{create_dir_all, File};
use serde::{de::DeserializeOwned, Deserialize, Serialize};
static EXAMPLE_CONFIG: &str = include_str!("../server.toml");
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Metrics {
pub enable: bool,
pub host: String,
pub port: u16,
}
impl Default for Metrics {
fn default() -> Self {
Self {
enable: false,
host: String::from("127.0.0.1"),
port: 9001,
}
}
}
#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Settings<DbSettings> {
pub host: String,
pub port: u16,
pub path: String,
pub open_registration: bool,
pub max_history_length: usize,
pub max_record_size: usize,
pub page_size: i64,
pub register_webhook_url: Option<String>,
pub register_webhook_username: String,
pub metrics: Metrics,
pub tls: Tls,
#[serde(flatten)]
pub db_settings: DbSettings,
}
impl<DbSettings: DeserializeOwned> Settings<DbSettings> {
pub fn new() -> Result<Self> {
let mut config_file = if let Ok(p) = std::env::var("ATUIN_CONFIG_DIR") {
PathBuf::from(p)
} else {
let mut config_file = PathBuf::new();
let config_dir = atuin_common::utils::config_dir();
config_file.push(config_dir);
config_file
};
config_file.push("server.toml");
// create the config file if it does not exist
let mut config_builder = Config::builder()
.set_default("host", "127.0.0.1")?
.set_default("port", 8888)?
.set_default("open_registration", false)?
.set_default("max_history_length", 8192)?
.set_default("max_record_size", 1024 * 1024 * 1024)? // pretty chonky
.set_default("path", "")?
.set_default("register_webhook_username", "")?
.set_default("page_size", 1100)?
.set_default("metrics.enable", false)?
.set_default("metrics.host", "127.0.0.1")?
.set_default("metrics.port", 9001)?
.set_default("tls.enable", false)?
.set_default("tls.cert_path", "")?
.set_default("tls.pkey_path", "")?
.add_source(
Environment::with_prefix("atuin")
.prefix_separator("_")
.separator("__"),
);
config_builder = if config_file.exists() {
config_builder.add_source(ConfigFile::new(
config_file.to_str().unwrap(),
FileFormat::Toml,
))
} else {
create_dir_all(config_file.parent().unwrap())?;
let mut file = File::create(config_file)?;
file.write_all(EXAMPLE_CONFIG.as_bytes())?;
config_builder
};
let config = config_builder.build()?;
config
.try_deserialize()
.map_err(|e| eyre!("failed to deserialize: {}", e))
}
}
pub fn example_config() -> &'static str {
EXAMPLE_CONFIG
}
#[derive(Clone, Debug, Default, Deserialize, Serialize)]
pub struct Tls {
pub enable: bool,
pub cert_path: PathBuf,
pub pkey_path: PathBuf,
}
impl Tls {
pub fn certificates(&self) -> Result<Vec<rustls::Certificate>> {
let cert_file = std::fs::File::open(&self.cert_path)
.with_context(|| format!("tls.cert_path {:?} is missing", self.cert_path))?;
let mut reader = std::io::BufReader::new(cert_file);
let certs: Vec<_> = rustls_pemfile::certs(&mut reader)
.map(|c| c.map(|c| rustls::Certificate(c.to_vec())))
.collect::<Result<Vec<_>, _>>()
.with_context(|| format!("tls.cert_path {:?} is invalid", self.cert_path))?;
if certs.is_empty() {
bail!(
"tls.cert_path {:?} must have at least one certificate",
self.cert_path
);
}
Ok(certs)
}
pub fn private_key(&self) -> Result<rustls::PrivateKey> {
let pkey_file = std::fs::File::open(&self.pkey_path)
.with_context(|| format!("tls.pkey_path {:?} is missing", self.pkey_path))?;
let mut reader = std::io::BufReader::new(pkey_file);
let keys = rustls_pemfile::pkcs8_private_keys(&mut reader)
.map(|c| c.map(|c| rustls::PrivateKey(c.secret_pkcs8_der().to_vec())))
.collect::<Result<Vec<_>, _>>()
.with_context(|| format!("tls.pkey_path {:?} is not PKCS8-encoded", self.pkey_path))?;
if keys.is_empty() {
bail!(
"tls.pkey_path {:?} must have at least one private key",
self.pkey_path
);
}
Ok(keys[0].clone())
}
}
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