98 lines
2.8 KiB
Rust
98 lines
2.8 KiB
Rust
use std::sync::Arc;
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use anyhow::{bail, Result};
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use futures::try_join;
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use log::*;
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use tokio::sync::watch;
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use crate::config::*;
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use crate::imap;
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use crate::lmtp::*;
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use crate::login::ArcLoginProvider;
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use crate::login::{ldap_provider::*, static_provider::*, Region};
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pub struct Server {
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lmtp_server: Option<Arc<LmtpServer>>,
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imap_server: Option<imap::Server>,
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}
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impl Server {
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pub async fn new(config: Config) -> Result<Self> {
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let (login, lmtp_conf, imap_conf) = build(config)?;
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let lmtp_server = lmtp_conf.map(|cfg| LmtpServer::new(cfg, login.clone()));
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let imap_server = match imap_conf {
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Some(cfg) => Some(imap::new(cfg, login.clone()).await?),
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None => None,
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};
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Ok(Self {
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lmtp_server,
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imap_server,
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})
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}
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pub async fn run(self) -> Result<()> {
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tracing::info!("Starting Aerogramme...");
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let (exit_signal, provoke_exit) = watch_ctrl_c();
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let _exit_on_err = move |err: anyhow::Error| {
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error!("Error: {}", err);
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let _ = provoke_exit.send(true);
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};
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try_join!(
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async {
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match self.lmtp_server.as_ref() {
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None => Ok(()),
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Some(s) => s.run(exit_signal.clone()).await,
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}
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},
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async {
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match self.imap_server {
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None => Ok(()),
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Some(s) => s.run(exit_signal.clone()).await,
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}
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}
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)?;
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Ok(())
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}
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}
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fn build(config: Config) -> Result<(ArcLoginProvider, Option<LmtpConfig>, Option<ImapConfig>)> {
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let s3_region = Region {
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name: config.aws_region.clone(),
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endpoint: config.s3_endpoint,
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};
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let k2v_region = Region {
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name: config.aws_region,
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endpoint: config.k2v_endpoint,
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};
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let lp: ArcLoginProvider = match (config.login_static, config.login_ldap) {
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(Some(st), None) => Arc::new(StaticLoginProvider::new(st, k2v_region, s3_region)?),
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(None, Some(ld)) => Arc::new(LdapLoginProvider::new(ld, k2v_region, s3_region)?),
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(Some(_), Some(_)) => {
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bail!("A single login provider must be set up in config file")
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}
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(None, None) => bail!("No login provider is set up in config file"),
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};
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Ok((lp, config.lmtp, config.imap))
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}
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pub fn watch_ctrl_c() -> (watch::Receiver<bool>, Arc<watch::Sender<bool>>) {
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let (send_cancel, watch_cancel) = watch::channel(false);
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let send_cancel = Arc::new(send_cancel);
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let send_cancel_2 = send_cancel.clone();
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tokio::spawn(async move {
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tokio::signal::ctrl_c()
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.await
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.expect("failed to install CTRL+C signal handler");
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info!("Received CTRL+C, shutting down.");
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send_cancel.send(true).unwrap();
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});
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(watch_cancel, send_cancel_2)
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}
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