vqueue 2.2.1

vSMTP's queues mananger. Secured, Faster and Greener
Documentation 
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/*
 * vSMTP mail transfer agent
 * Copyright (C) 2022 viridIT SAS
 *
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see https://www.gnu.org/licenses/.
 *
 */
use crate::{FilesystemQueueManagerExt, QueueID};
use anyhow::Context;
use vsmtp_common::transport::DeserializerFn;
use vsmtp_config::Config;

extern crate alloc;

///
// TODO: handle canonicalization of path (& chown)
pub struct QueueManager {
    config: alloc::sync::Arc<Config>,
    transport_deserializer: Vec<DeserializerFn>,
}

impl core::fmt::Debug for QueueManager {
    #[inline]
    fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
        f.debug_struct("QueueManager").finish_non_exhaustive()
    }
}

#[allow(clippy::missing_trait_methods)]
#[async_trait::async_trait]
impl FilesystemQueueManagerExt for QueueManager {
    #[inline]
    fn init(
        config: alloc::sync::Arc<Config>,
        transport_deserializer: Vec<DeserializerFn>,
    ) -> anyhow::Result<alloc::sync::Arc<Self>> {
        <QueueID as strum::IntoEnumIterator>::iter()
            .map(|q| {
                let dir = Self::get_root_folder(&config, &q).join(q.to_string());
                std::fs::create_dir_all(&dir).with_context(|| {
                    format!("could not create `{q}` directory at `{}`", dir.display())
                })
            })
            .collect::<anyhow::Result<Vec<_>>>()?;

        Ok(alloc::sync::Arc::new(Self {
            config,
            transport_deserializer,
        }))
    }

    #[inline]
    fn get_config(&self) -> &Config {
        &self.config
    }

    #[inline]
    fn get_transport_deserializer(&self) -> &[DeserializerFn] {
        &self.transport_deserializer
    }
}

#[cfg(test)]
mod tests {
    use vsmtp_test::config::local_test;
    extern crate alloc;

    #[test]
    fn debug() {
        assert_eq!(
            "QueueManager { .. }",
            format!(
                "{:?}",
                <super::QueueManager as crate::GenericQueueManager>::init(
                    alloc::sync::Arc::new(local_test()),
                    vec![]
                )
                .unwrap()
            )
        );
    }
}