aerogramme/src/server.rs

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Rust
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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;
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use boitalettres::proto::{Request, Response};
use boitalettres::server::accept::addr::{AddrIncoming, AddrStream};
use boitalettres::server::Server as ImapServer;
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use std::pin::Pin;
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use std::task::{Context, Poll};
use tower::Service;
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use futures::future::BoxFuture;
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pub struct Connection {
pub login_provider: Arc<Box<dyn LoginProvider + Send + Sync>>,
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}
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impl Service<Request> for Connection {
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type Response = Response;
type Error = anyhow::Error;
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type Future = BoxFuture<'static, Result<Self::Response>>;
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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},
};
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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.")?,
};
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Ok(r)
})
}
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}
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impl Connection {
pub fn new(login_provider: Arc<Box<dyn LoginProvider + Send + Sync>>) -> Self {
Self { login_provider: login_provider }
}
}
pub struct Instance {
pub login_provider: Arc<Box<dyn LoginProvider + Send + Sync>>,
}
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impl<'a> Service<&'a AddrStream> for Instance {
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type Response = Connection;
type Error = anyhow::Error;
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type Future = BoxFuture<'static, Result<Self::Response>>;
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fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
Poll::Ready(Ok(()))
}
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fn call(&mut self, addr: &'a AddrStream) -> Self::Future {
tracing::info!(remote_addr = %addr.remote_addr, local_addr = %addr.local_addr, "accept");
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let lp = self.login_provider.clone();
Box::pin(async move {
Ok(Connection::new(lp))
})
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}
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}
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impl Instance {
pub fn new(config: Config) -> Result<Self> {
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let s3_region = Region::Custom {
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name: config.aws_region.clone(),
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endpoint: config.s3_endpoint,
};
let k2v_region = Region::Custom {
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name: config.aws_region,
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endpoint: config.k2v_endpoint,
};
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let login_provider: Arc<Box<dyn LoginProvider + Send + Sync>> = match (config.login_static, config.login_ldap)
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{
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(Some(st), None) => Arc::new(Box::new(StaticLoginProvider::new(st, k2v_region, s3_region)?)),
(None, Some(ld)) => Arc::new(Box::new(LdapLoginProvider::new(ld, k2v_region, s3_region)?)),
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(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"),
};
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Ok(Self { login_provider })
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}
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}
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pub struct Server {
pub incoming: AddrIncoming,
pub instance: Instance,
}
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impl Server {
pub async fn new(config: Config) -> Result<Self> {
Ok(Self {
incoming: AddrIncoming::new("127.0.0.1:4567").await?,
instance: Instance::new(config)?,
})
}
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pub async fn run(self: Self) -> Result<()> {
let server = ImapServer::new(self.incoming).serve(self.instance);
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let _ = server.await?;
/*let creds = self.login_provider.login("quentin", "poupou").await?;
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let mut mailbox = Mailbox::new(&creds, "TestMailbox".to_string()).await?;
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mailbox.test().await?;*/
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Ok(())
}
}