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path: root/src/imap/command/anonymous.rs
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use boitalettres::proto::{Request, Response};
use crate::login::ArcLoginProvider;
use crate::imap::Context;

//--- dispatching

pub async fn dispatch(ctx: Context) -> Result<Response> {
    match ctx.req.body {
        CommandBody::Capability => anonymous::capability(ctx).await,
        CommandBody::Login { username, password } => anonymous::login(ctx, username, password).await,
        _ => Status::no(Some(ctx.req.tag.clone()), None, "This command is not available in the ANONYMOUS state.")
            .map(|s| vec![ImapRes::Status(s)])
            .map_err(Error::msg),
    }
}

//--- Command controllers

pub async fn capability(ctx: Context) -> Result<Response> {
    let capabilities = vec![Capability::Imap4Rev1, Capability::Idle];
    let res = vec![
        ImapRes::Data(Data::Capability(capabilities)),
        ImapRes::Status(
            Status::ok(Some(ctx.req.tag.clone()), None, "Server capabilities")
            .map_err(Error::msg)?,
            ),
    ];
    Ok(res)
}

pub async fn login(ctx: Context, username: AString, password: AString) -> Result<Response> {
    let (u, p) = (String::try_from(username)?, String::try_from(password)?);
    tracing::info!(user = %u, "command.login");

    let creds = match ctx.login_provider.login(&u, &p).await {
        Err(e) => {
            tracing::debug!(error=%e, "authentication failed");
            return Ok(vec![ImapRes::Status(
                    Status::no(Some(ctx.req.tag.clone()), None, "Authentication failed")
                    .map_err(Error::msg)?,
                    )]);
        }
        Ok(c) => c,
    };

    let user = flow::User {
        creds,
        name: u.clone(),
    };
    ctx.state.authenticate(user)?;

    tracing::info!(username=%u, "connected");
    Ok(vec![
       //@FIXME we could send a capability status here too
       ImapRes::Status(
           Status::ok(Some(ctx.req.tag.clone()), None, "completed").map_err(Error::msg)?,
           ),
    ])
}