implement authentication policies

This commit is contained in:
marin postma 2021-06-24 14:22:12 +02:00
parent 5b71751391
commit 0c1c7a3dd9
No known key found for this signature in database
GPG key ID: 6088B7721C3E39F9
2 changed files with 60 additions and 28 deletions

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@ -1,37 +1,43 @@
use std::collections::{HashMap, HashSet};
use std::any::{Any, TypeId};
use std::collections::HashMap;
use std::marker::PhantomData;
use std::ops::Deref;
use std::any::{Any, TypeId};
use actix_web::FromRequest;
use futures::future::err;
use futures::future::{Ready, ok};
use futures::future::{ok, Ready};
use crate::error::{AuthenticationError, ResponseError};
macro_rules! create_policies {
($($name:ident), *) => {
$(
pub struct $name {
inner: HashSet<Vec<u8>>
}
pub mod policies {
use std::collections::HashSet;
use crate::extractors::authentication::Policy;
impl $name {
pub fn new() -> Self {
Self { inner: HashSet::new() }
$(
#[derive(Debug)]
pub struct $name {
inner: HashSet<Vec<u8>>
}
pub fn add(&mut self, token: Vec<u8>) {
self.inner.insert(token);
}
}
impl $name {
pub fn new() -> Self {
Self { inner: HashSet::new() }
}
impl Policy for $name {
fn authenticate(&self, token: &[u8]) -> bool {
self.inner.contains(token)
pub fn add(&mut self, token: Vec<u8>) {
&mut self.inner.insert(token);
}
}
}
)*
impl Policy for $name {
fn authenticate(&self, token: &[u8]) -> bool {
self.inner.contains(token)
}
}
)*
}
};
}
@ -41,7 +47,7 @@ create_policies!(Public, Private, Admin);
macro_rules! init_policies {
($($name:ident), *) => {
{
let mut policies = Policies::new();
let mut policies = crate::extractors::authentication::Policies::new();
$(
let policy = $name::new();
policies.insert(policy);
@ -53,11 +59,11 @@ macro_rules! init_policies {
/// Adds user to all specified policies.
macro_rules! create_users {
($policies:ident, $($user:literal => { $($policy:ty), * }), *) => {
($policies:ident, $($user:expr => { $($policy:ty), * }), *) => {
{
$(
$(
$policies.get_mut::<$policy>().map(|p| p.add($user.to_owned()))
$policies.get_mut::<$policy>().map(|p| p.add($user.to_owned()));
)*
)*
}
@ -81,13 +87,16 @@ pub trait Policy {
fn authenticate(&self, token: &[u8]) -> bool;
}
#[derive(Debug)]
pub struct Policies {
inner: HashMap<TypeId, Box<dyn Any>>,
}
impl Policies {
pub fn new() -> Self {
Self { inner: HashMap::new() }
Self {
inner: HashMap::new(),
}
}
pub fn insert<S: Policy + 'static>(&mut self, policy: S) {
@ -101,7 +110,8 @@ impl Policies {
}
pub fn get_mut<S: Policy + 'static>(&mut self) -> Option<&mut S> {
self.inner.get_mut(&TypeId::of::<S>())
self.inner
.get_mut(&TypeId::of::<S>())
.and_then(|p| p.downcast_mut::<S>())
}
}