i did things

1 files changed, 65 insertions, 0 deletions

diff --git a/src/types/extract.rs b/src/types/extract.rs
new file mode 100644
index 0000000..6518ca1
--- /dev/null
+++ b/src/types/extract.rs
@@ -0,0 +1,65 @@
+use std::io::Read;
+
+use axum::{extract::{FromRequestParts, FromRequest}, async_trait, response::Response, http::{request::Parts, Request}, TypedHeader, headers::Cookie, body::HttpBody, BoxError};
+use bytes::Bytes;
+use serde::de::DeserializeOwned;
+
+use crate::types::{user::User, response::{ResponseCode, Result}, session::Session};
+
+pub struct AuthorizedUser(pub User);
+
+#[async_trait]
+impl<S> FromRequestParts<S> for AuthorizedUser where S: Send + Sync {
+	type Rejection = Response;
+	
+	async fn from_request_parts(parts: &mut Parts, state: &S) -> Result<Self> {
+        
+        let Ok(Some(cookies)) = Option::<TypedHeader<Cookie>>::from_request_parts(parts, state).await else {
+            return Err(ResponseCode::Forbidden.msg("No cookies provided"))
+        };
+    
+        let Some(token) = cookies.get("auth") else {
+            return Err(ResponseCode::Forbidden.msg("No auth token provided"))
+        };
+    
+        let Ok(session) = Session::from_token(&token) else {
+            return Err(ResponseCode::Unauthorized.msg("Auth token invalid"))
+        };
+    
+        let Ok(user) = User::from_user_id(session.user_id, true)  else {
+            return Err(ResponseCode::InternalServerError.msg("Valid token but no valid user"))
+        };
+
+        Ok(AuthorizedUser(user))
+	}
+}
+
+pub struct Json<T>(pub T);
+
+#[async_trait]
+impl<T, S, B> FromRequest<S, B> for Json<T> where 
+    T: DeserializeOwned,
+    B: HttpBody + Send + 'static,
+    B::Data: Send,
+    B::Error: Into<BoxError>,
+    S: Send + Sync,
+{
+    type Rejection = Response;
+
+    async fn from_request(req: Request<B>, state: &S) ->  Result<Self> {
+        
+        let Ok(bytes) = Bytes::from_request(req, state).await else {
+            return Err(ResponseCode::InternalServerError.msg("Failed to read request body"));
+        };
+        
+        let Ok(string) = String::from_utf8(bytes.bytes().flatten().collect()) else {
+            return Err(ResponseCode::BadRequest.msg("Invalid utf8 body"))
+        };
+
+        let Ok(value) = serde_json::from_str(&string) else {
+            return Err(ResponseCode::BadRequest.msg("Invalid request body"))
+        };
+
+        Ok(Json(value))
+    }
+}
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