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/*
* Copyright (c) 2023 Stalwart Labs Ltd.
*
* This file is part of Stalwart Mail Server.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
* in the LICENSE file at the top-level directory of this distribution.
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* You can be released from the requirements of the AGPLv3 license by
* purchasing a commercial license. Please contact licensing@stalw.art
* for more details.
*/
pub mod certificate;
pub mod dynvalue;
pub mod listener;
pub mod parser;
pub mod utils;
use std::{
borrow::Cow,
collections::BTreeMap,
fmt::Display,
net::{IpAddr, Ipv4Addr, SocketAddr},
time::Duration,
};
use rustls::ServerConfig;
use tokio::net::TcpSocket;
use crate::{failed, UnwrapFailure};
use self::utils::ParseValue;
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Config {
pub keys: BTreeMap<String, String>,
}
#[derive(Debug, Default)]
pub struct Server {
pub id: String,
pub internal_id: u16,
pub hostname: String,
pub data: String,
pub protocol: ServerProtocol,
pub listeners: Vec<Listener>,
pub tls: Option<ServerConfig>,
pub tls_implicit: bool,
pub max_connections: u64,
}
pub struct Servers {
pub inner: Vec<Server>,
}
#[derive(Debug)]
pub struct Listener {
pub socket: TcpSocket,
pub addr: SocketAddr,
pub ttl: Option<u32>,
pub backlog: Option<u32>,
}
#[derive(Debug, PartialEq, Eq, Clone, Copy, Default)]
pub enum ServerProtocol {
#[default]
Smtp,
Lmtp,
Jmap,
Imap,
Http,
ManageSieve,
}
#[derive(Debug, Clone)]
pub enum DynValue<T: ParseValue> {
String(String),
Position(usize),
Key(T),
List(Vec<DynValue<T>>),
}
pub trait KeyLookup {
type Key: ParseValue;
fn key(&self, key: &Self::Key) -> Cow<'_, str>;
fn key_as_int(&self, key: &Self::Key) -> i32;
fn key_as_ip(&self, key: &Self::Key) -> IpAddr;
}
impl KeyLookup for () {
type Key = String;
fn key(&self, _: &Self::Key) -> Cow<'_, str> {
"".into()
}
fn key_as_int(&self, _: &Self::Key) -> i32 {
0
}
fn key_as_ip(&self, _: &Self::Key) -> IpAddr {
IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0))
}
}
#[derive(Debug, Default, PartialEq, Eq, Clone)]
pub struct Rate {
pub requests: u64,
pub period: Duration,
}
impl Display for ServerProtocol {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
match self {
ServerProtocol::Smtp => write!(f, "smtp"),
ServerProtocol::Lmtp => write!(f, "lmtp"),
ServerProtocol::Jmap => write!(f, "jmap"),
ServerProtocol::Imap => write!(f, "imap"),
ServerProtocol::Http => write!(f, "http"),
ServerProtocol::ManageSieve => write!(f, "managesieve"),
}
}
}
pub type Result<T> = std::result::Result<T, String>;
impl Config {
pub fn init() -> Self {
let mut config_path = None;
let mut found_param = false;
for arg in std::env::args().skip(1) {
if let Some((key, value)) = arg.split_once('=') {
if key.starts_with("--config") {
config_path = value.trim().to_string().into();
break;
} else {
failed(&format!("Invalid command line argument: {key}"));
}
} else if found_param {
config_path = arg.into();
break;
} else if arg.starts_with("--config") {
found_param = true;
} else {
failed(&format!("Invalid command line argument: {arg}"));
}
}
Config::parse(
&std::fs::read_to_string(
config_path.failed("Missing parameter --config=<path-to-config>."),
)
.failed("Could not read configuration file"),
)
.failed("Invalid configuration file")
}
}
|
