serves3/src/settings.rs

67 lines
1.7 KiB
Rust

// SPDX-FileCopyrightText: © Matteo Settenvini <matteo.settenvini@montecristosoftware.eu>
// SPDX-License-Identifier: EUPL-1.2
use {anyhow::anyhow, rocket::serde::Deserialize, serde::de::Error};
#[derive(Deserialize)]
#[serde(crate = "rocket::serde")]
pub struct Settings {
#[serde(deserialize_with = "deserialize_s3_bucket")]
pub s3_bucket: Box<s3::Bucket>,
}
fn deserialize_s3_bucket<'de, D>(deserializer: D) -> Result<Box<s3::Bucket>, D::Error>
where
D: serde::Deserializer<'de>,
{
let config = S3Config::deserialize(deserializer)?;
config.try_into().map_err(D::Error::custom)
}
#[derive(Deserialize)]
pub struct S3Config {
pub name: String,
pub endpoint: String,
pub region: String,
#[serde(default)]
pub path_style: bool,
pub access_key_id: String,
pub secret_access_key: String,
}
impl TryInto<Box<s3::Bucket>> for S3Config {
type Error = anyhow::Error;
fn try_into(self) -> Result<Box<s3::Bucket>, Self::Error> {
let region = s3::Region::Custom {
region: self.region,
endpoint: self.endpoint,
};
let credentials = s3::creds::Credentials::new(
Some(&self.access_key_id),
Some(&self.secret_access_key),
None,
None,
None,
)?;
log::info!(
"Serving contents from bucket {} at {}",
&self.name,
region.endpoint()
);
let bucket = s3::Bucket::new(&self.name, region, credentials).map_err(|e| anyhow!(e));
if self.path_style {
bucket.map(|mut b| {
b.set_path_style();
b
})
} else {
bucket
}
}
}