set auth request guard from managed state

peach-web/src/routes/authentication.rs

@@ -7,7 +7,6 @@ use rocket::{
     request::{self, FlashMessage, FromRequest, Request},
     response::{Flash, Redirect},
     serde::Deserialize,
-    Config,
 };
 use rocket_dyn_templates::{tera::Context, Template};
 
@@ -15,6 +14,8 @@ use peach_lib::{error::PeachError, password_utils};
 
 use crate::error::PeachWebError;
 use crate::utils::TemplateOrRedirect;
+//use crate::DisableAuth;
+use crate::RocketConfig;
 
 // HELPERS AND STRUCTS FOR AUTHENTICATION WITH COOKIES
 
@@ -42,26 +43,30 @@ impl<'r> FromRequest<'r> for Authenticated {
     type Error = LoginError;
 
     async fn from_request(req: &'r Request<'_>) -> request::Outcome<Self, Self::Error> {
-        // check for `disable_auth` config value; set to `false` if unset
-        // can be set via the `ROCKET_DISABLE_AUTH` environment variable
-        //  - env var, if set, takes precedence over value defined in `Rocket.toml`
-        let authentication_is_disabled: bool = match Config::figment().find_value("disable_auth") {
-            // deserialize the boolean value; set to `false` if an error is encountered
-            Ok(value) => value.deserialize().unwrap_or(false),
-            Err(_) => false,
-        };
-        if authentication_is_disabled {
-            let auth = Authenticated {};
-            request::Outcome::Success(auth)
-        } else {
-            let authenticated = req
-                .cookies()
-                .get_private(AUTH_COOKIE_KEY)
-                .and_then(|cookie| cookie.value().parse().ok())
-                .map(|_value: String| Authenticated {});
-            match authenticated {
-                Some(auth) => request::Outcome::Success(auth),
-                None => request::Outcome::Failure((Status::Forbidden, LoginError::UserNotLoggedIn)),
+        // retrieve auth state from managed state (returns `Option<bool>`).
+        // this value is read from the Rocket.toml config file on start-up
+        let authentication_is_disabled = req
+            .rocket()
+            .state::<RocketConfig>()
+            .map(|config| (&config.disable_auth));
+
+        match authentication_is_disabled {
+            Some(true) => {
+                let auth = Authenticated {};
+                request::Outcome::Success(auth)
+            }
+            _ => {
+                let authenticated = req
+                    .cookies()
+                    .get_private(AUTH_COOKIE_KEY)
+                    .and_then(|cookie| cookie.value().parse().ok())
+                    .map(|_value: String| Authenticated {});
+                match authenticated {
+                    Some(auth) => request::Outcome::Success(auth),
+                    None => {
+                        request::Outcome::Failure((Status::Forbidden, LoginError::UserNotLoggedIn))
+                    }
+                }
             }
         }
     }