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use std::{
fmt,
sync::{Arc, RwLock, RwLockReadGuard, RwLockWriteGuard},
};
use viz_utils::{futures::future::BoxFuture, thiserror::Error as ThisError, tracing};
use crate::{
http,
types::{Cookie, CookieJar, Key},
Context, Extract, Response, Result,
};
#[derive(ThisError, Debug, PartialEq)]
pub enum CookiesError {
#[error("failed to read cookies")]
Read,
#[error("failed to parse cookies")]
Parse,
}
impl From<CookiesError> for Response {
fn from(e: CookiesError) -> Self {
(http::StatusCode::INTERNAL_SERVER_ERROR, e.to_string()).into()
}
}
#[derive(Clone)]
pub struct Cookies {
inner: Arc<(Key, RwLock<CookieJar>)>,
}
impl Cookies {
fn key(&self) -> &Key {
&self.inner.0
}
fn jar(&self) -> &RwLock<CookieJar> {
&self.inner.1
}
pub fn read(&self) -> RwLockReadGuard<'_, CookieJar> {
self.jar().read().unwrap()
}
pub fn write(&self) -> RwLockWriteGuard<'_, CookieJar> {
self.jar().write().unwrap()
}
pub fn get(&self, name: &str) -> Option<Cookie<'_>> {
self.read().get(name).cloned()
}
pub fn add(&self, cookie: Cookie<'_>) {
self.write().add(cookie.into_owned())
}
#[cfg(feature = "signed-cookies")]
pub fn get_with_singed(&self, name: &str) -> Option<Cookie<'_>> {
self.write().signed(self.key()).get(name)
}
#[cfg(feature = "signed-cookies")]
pub fn add_with_singed(&self, cookie: Cookie<'_>) {
self.write().signed_mut(self.key()).add(cookie.into_owned())
}
#[cfg(feature = "private-cookies")]
pub fn get_with_private(&self, name: &str) -> Option<Cookie<'_>> {
self.write().private(self.key()).get(name)
}
#[cfg(feature = "private-cookies")]
pub fn add_with_private(&self, cookie: Cookie<'_>) {
self.write().private_mut(self.key()).add(cookie.into_owned())
}
}
impl fmt::Debug for Cookies {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Cookies")
.field("key", &self.key().master())
.field("jar", &self.jar())
.finish()
}
}
impl From<(Key, CookieJar)> for Cookies {
fn from(kc: (Key, CookieJar)) -> Self {
Cookies { inner: Arc::new((kc.0, RwLock::new(kc.1))) }
}
}
impl Extract for Cookies {
type Error = CookiesError;
#[inline]
fn extract(cx: &mut Context) -> BoxFuture<'_, Result<Self, Self::Error>> {
Box::pin(async move { cx.cookies() })
}
}
impl Context {
pub fn cookies(&mut self) -> Result<Cookies, CookiesError> {
if let Some(cookies) = self.extensions().get::<Cookies>().cloned() {
return Ok(cookies);
}
let mut jar = CookieJar::new();
if let Some(raw_cookie) = self.header_value(http::header::COOKIE) {
for pair in raw_cookie
.to_str()
.map_err(|e| {
tracing::error!("failed to extract cookies: {}", e);
CookiesError::Read
})?
.split(';')
{
jar.add_original(Cookie::parse_encoded(pair.trim().to_string()).map_err(|e| {
tracing::error!("failed to parse cookies: {}", e);
CookiesError::Parse
})?)
}
}
let cookies = Cookies::from((Key::from(self.config().cookies.secret_key.as_bytes()), jar));
self.extensions_mut().insert::<Cookies>(cookies.clone());
Ok(cookies)
}
pub fn cookie(&self, name: &str) -> Option<Cookie<'_>> {
self.extensions().get::<Cookies>()?.get(name)
}
}