fabaccess-bffh/bffhd/users/mod.rs

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use anyhow::Context;
use lmdb::Environment;
use once_cell::sync::OnceCell;
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use rkyv::{Archive, Deserialize, Infallible, Serialize};
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use std::collections::HashMap;
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use std::ops::Deref;
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use std::path::Path;
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use std::sync::Arc;
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pub mod db;
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use crate::users::db::UserData;
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use crate::UserDB;
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#[derive(
Clone,
PartialEq,
Eq,
Debug,
Archive,
Serialize,
Deserialize,
serde::Serialize,
serde::Deserialize,
)]
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#[archive_attr(derive(Debug, PartialEq))]
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pub struct UserRef {
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pub id: String,
}
impl PartialEq<ArchivedUserRef> for UserRef {
fn eq(&self, other: &ArchivedUserRef) -> bool {
self.id == other.id
}
}
impl PartialEq<UserRef> for ArchivedUserRef {
fn eq(&self, other: &UserRef) -> bool {
self.id == other.id
}
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}
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impl UserRef {
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pub fn new(id: String) -> Self {
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UserRef { id }
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}
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pub fn get_username(&self) -> &str {
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self.id.as_str()
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}
}
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static USERDB: OnceCell<UserDB> = OnceCell::new();
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#[derive(Copy, Clone, Debug)]
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#[repr(transparent)]
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pub struct Users {
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userdb: &'static UserDB,
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}
impl Users {
pub fn new(env: Arc<Environment>) -> anyhow::Result<Self> {
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let span = tracing::debug_span!("users", ?env, "Creating Users handle");
let _guard = span.enter();
let userdb = USERDB
.get_or_try_init(|| {
tracing::debug!("Global resource not yet initialized, initializing…");
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unsafe { UserDB::create(env) }
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})
.context("Failed to open userdb")?;
Ok(Self { userdb })
}
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pub(crate) fn into_inner(self) -> &'static UserDB {
self.userdb
}
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pub fn get_user(&self, uid: &str) -> Option<db::User> {
tracing::trace!(uid, "Looking up user");
self.userdb
.get(uid)
.unwrap()
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.map(|user| Deserialize::<db::User, _>::deserialize(user.as_ref(), &mut Infallible).unwrap())
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}
pub fn load_file<P: AsRef<Path>>(&self, path: P) -> anyhow::Result<()> {
let f = std::fs::read(path)?;
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let map: HashMap<String, UserData> = toml::from_slice(&f)?;
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for (uid, mut userdata) in map {
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userdata.passwd = userdata.passwd.map(|pw| {
if !pw.starts_with("$argon2") {
let config = argon2::Config::default();
let salt: [u8; 16] = rand::random();
let hash = argon2::hash_encoded(pw.as_bytes(), &salt, &config)
.expect(&format!("Failed to hash password for {}: ", uid));
tracing::debug!("Hashed pw for {} to {}", uid, hash);
hash
} else {
pw
}
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});
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let user = db::User {
id: uid.clone(),
userdata,
};
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tracing::trace!(%uid, ?user, "Storing user object");
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self.userdb.put(uid.as_str(), &user);
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}
Ok(())
}
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}