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use std::{
error::Error,
path::{Path, PathBuf},
sync::Arc,
};
use tokio::io;
pub trait FileStore {
type Err: Clone + Send + Error;
fn is_stored(
&self,
name: &str,
) -> impl std::future::Future<Output = Result<bool, Self::Err>> + std::marker::Send;
fn store(
&self,
name: &str,
data: &[u8],
) -> impl std::future::Future<Output = Result<(), Self::Err>> + std::marker::Send;
fn delete(
&self,
name: &str,
) -> impl std::future::Future<Output = Result<(), Self::Err>> + std::marker::Send;
}
#[derive(Clone, Debug)]
pub struct Files {
root: PathBuf,
}
impl Files {
pub fn new(root: impl AsRef<Path>) -> Self {
let root = root.as_ref();
let root = root.into();
Self { root }
}
pub fn root(&self) -> &Path {
&self.root
}
}
impl FileStore for Files {
type Err = Arc<io::Error>;
async fn is_stored(&self, name: &str) -> Result<bool, Self::Err> {
tracing::debug!("checking if {} is stored", name);
// TODO: is this secure ;-;
let name = name.replace("/", "").replace(".", "");
let res = tokio::fs::try_exists(self.root.join(name))
.await
.map_err(|err| Arc::new(err));
tracing::debug!("file check res: {:?}", res);
res
}
async fn store(&self, name: &str, data: &[u8]) -> Result<(), Self::Err> {
tracing::debug!("storing {} is stored", name);
let name = name.replace("/", "").replace(".", "");
let res = tokio::fs::write(self.root.join(name), data)
.await
.map_err(|err| Arc::new(err));
tracing::debug!("file store res: {:?}", res);
res
}
async fn delete(&self, name: &str) -> Result<(), Self::Err> {
tracing::debug!("deleting {}", name);
let name = name.replace("/", "").replace(".", "");
let res = tokio::fs::remove_file(self.root.join(name))
.await
.map_err(|err| Arc::new(err));
tracing::debug!("file delete res: {:?}", res);
res
}
}
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