98 lines
3.2 KiB
Rust
98 lines
3.2 KiB
Rust
use anyhow::{Error, Result};
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use boitalettres::proto::{res::body::Data as Body, Request, Response};
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use imap_codec::types::command::CommandBody;
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use imap_codec::types::core::AString;
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use imap_codec::types::response::{Capability, Data, Status};
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use crate::imap::flow;
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use crate::login::ArcLoginProvider;
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use crate::mail::user::User;
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//--- dispatching
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pub struct AnonymousContext<'a> {
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pub req: &'a Request,
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pub login_provider: Option<&'a ArcLoginProvider>,
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}
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pub async fn dispatch<'a>(ctx: AnonymousContext<'a>) -> Result<(Response, flow::Transition)> {
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match &ctx.req.command.body {
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CommandBody::Noop => Ok((Response::ok("Noop completed.")?, flow::Transition::None)),
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CommandBody::Capability => ctx.capability().await,
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CommandBody::Logout => ctx.logout().await,
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CommandBody::Login { username, password } => ctx.login(username, password).await,
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_ => Ok((
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Response::no("This command is not available in the ANONYMOUS state.")?,
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flow::Transition::None,
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)),
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}
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}
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//--- Command controllers, private
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impl<'a> AnonymousContext<'a> {
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async fn capability(self) -> Result<(Response, flow::Transition)> {
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let capabilities = vec![Capability::Imap4Rev1, Capability::Idle];
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let res = Response::ok("Server capabilities")?.with_body(Data::Capability(capabilities));
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Ok((res, flow::Transition::None))
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}
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async fn login(
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self,
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username: &AString,
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password: &AString,
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) -> Result<(Response, flow::Transition)> {
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let (u, p) = (
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String::try_from(username.clone())?,
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String::try_from(password.clone())?,
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);
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tracing::info!(user = %u, "command.login");
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let login_provider = match &self.login_provider {
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Some(lp) => lp,
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None => {
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return Ok((
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Response::no("Login command not available (already logged in)")?,
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flow::Transition::None,
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))
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}
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};
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let creds = match login_provider.login(&u, &p).await {
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Err(e) => {
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tracing::debug!(error=%e, "authentication failed");
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return Ok((
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Response::no("Authentication failed")?,
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flow::Transition::None,
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));
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}
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Ok(c) => c,
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};
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let s3_client = creds.s3_client();
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let k2v_client = creds.k2v_client();
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let user = User::new(u.clone(), creds)?;
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tracing::info!(username=%u, "connected");
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Ok((
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Response::ok("Completed")?,
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flow::Transition::Authenticate(user),
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))
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}
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// C: 10 logout
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// S: * BYE Logging out
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// S: 10 OK Logout completed.
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async fn logout(self) -> Result<(Response, flow::Transition)> {
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// @FIXME we should implement From<Vec<Status>> and From<Vec<ImapStatus>> in
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// boitalettres/src/proto/res/body.rs
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Ok((
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Response::ok("Logout completed")?.with_body(vec![Body::Status(
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Status::bye(None, "Logging out")
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.map_err(|e| Error::msg(e).context("Unable to generate IMAP status"))?,
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)]),
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flow::Transition::Logout,
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))
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}
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}
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