Add Qdrant as vector database (#580)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

runtime/src/runtime_api_token.rs

@@ -0,0 +1,40 @@
+use once_cell::sync::Lazy;
+use rocket::http::Status;
+use rocket::Request;
+use rocket::request::FromRequest;
+use crate::api_token::{generate_api_token, APIToken};
+
+pub static API_TOKEN: Lazy<APIToken> = Lazy::new(|| generate_api_token());
+
+/// The request outcome type used to handle API token requests.
+type RequestOutcome<R, T> = rocket::request::Outcome<R, T>;
+
+/// The request outcome implementation for the API token.
+#[rocket::async_trait]
+impl<'r> FromRequest<'r> for APIToken {
+    type Error = APITokenError;
+
+    /// Handles the API token requests.
+    async fn from_request(request: &'r Request<'_>) -> RequestOutcome<Self, Self::Error> {
+        let token = request.headers().get_one("token");
+        match token {
+            Some(token) => {
+                let received_token = APIToken::from_hex_text(token);
+                if API_TOKEN.validate(&received_token) {
+                    RequestOutcome::Success(received_token)
+                } else {
+                    RequestOutcome::Error((Status::Unauthorized, APITokenError::Invalid))
+                }
+            }
+
+            None => RequestOutcome::Error((Status::Unauthorized, APITokenError::Missing)),
+        }
+    }
+}
+
+/// The API token error types.
+#[derive(Debug)]
+pub enum APITokenError {
+    Missing,
+    Invalid,
+}