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use anyhow::{bail, Result};
use std::sync::Arc;
use rusoto_signature::Region;
use crate::config::*;
use crate::login::{ldap_provider::*, static_provider::*, *};
use crate::mailbox::Mailbox;
use boitalettres::proto::{Request, Response};
use boitalettres::server::accept::addr::{AddrIncoming, AddrStream};
use boitalettres::server::Server as ImapServer;
use std::pin::Pin;
use std::task::{Context, Poll};
use tower::Service;
pub struct Server {
pub login_provider: Box<dyn LoginProvider>,
}
struct Connection;
impl Service<Request> for Connection {
type Response = Response;
type Error = anyhow::Error;
type Future = Pin<Box<dyn futures::Future<Output = Result<Self::Response>> + Send>>;
fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
fn call(&mut self, req: Request) -> Self::Future {
tracing::debug!("Got request: {:#?}", req);
Box::pin(async move {
use imap_codec::types::{
command::CommandBody,
response::{Capability, Data},
};
let r = match req.body {
CommandBody::Capability => {
let capabilities = vec![Capability::Imap4Rev1, Capability::Idle];
let body = vec![Data::Capability(capabilities)];
Response::ok(
"Pre-login capabilities listed, post-login capabilities have more.",
)?
.with_body(body)
}
CommandBody::Login {
username: _,
password: _,
} => Response::ok("Logged in")?,
_ => Response::bad("Error in IMAP command received by server.")?,
};
Ok(r)
})
}
}
struct Instance;
impl<'a> Service<&'a AddrStream> for Instance {
type Response = Connection;
type Error = anyhow::Error;
type Future = Pin<Box<dyn futures::Future<Output = Result<Self::Response>> + Send>>;
fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
fn call(&mut self, addr: &'a AddrStream) -> Self::Future {
tracing::info!(remote_addr = %addr.remote_addr, local_addr = %addr.local_addr, "accept");
Box::pin(async { Ok(Connection) })
}
}
impl Server {
pub fn new(config: Config) -> Result<Arc<Self>> {
let s3_region = Region::Custom {
name: config.aws_region.clone(),
endpoint: config.s3_endpoint,
};
let k2v_region = Region::Custom {
name: config.aws_region,
endpoint: config.k2v_endpoint,
};
let login_provider: Box<dyn LoginProvider> = match (config.login_static, config.login_ldap)
{
(Some(st), None) => Box::new(StaticLoginProvider::new(st, k2v_region, s3_region)?),
(None, Some(ld)) => Box::new(LdapLoginProvider::new(ld, k2v_region, s3_region)?),
(Some(_), Some(_)) => bail!("A single login provider must be set up in config file"),
(None, None) => bail!("No login provider is set up in config file"),
};
Ok(Arc::new(Self { login_provider }))
}
pub async fn run(self: &Arc<Self>) -> Result<()> {
// tracing_subscriber::fmt::init();
let incoming = AddrIncoming::new("127.0.0.1:4567").await?;
let server = ImapServer::new(incoming).serve(Instance);
let _ = server.await?;
/*let creds = self.login_provider.login("quentin", "poupou").await?;
let mut mailbox = Mailbox::new(&creds, "TestMailbox".to_string()).await?;
mailbox.test().await?;*/
Ok(())
}
}
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