codify "platform" into resolution logic, server-fn/fullstack overhaul (#4596)

overhaul dioxus fullstack using a new implementation of server_fn

This PR is a complete rewrite of dioxus fullstack designed to improve compatibility with axum and to fix a number of compilation errors based on feature flag unification plumbing through macros.

examples/07-fullstack/auth/src/main.rs

@@ -0,0 +1,129 @@
+#[cfg(feature = "server")]
+mod auth;
+
+use dioxus::prelude::*;
+
+fn main() {
+    #[cfg(feature = "server")]
+    dioxus::serve(|| async {
+        use crate::auth::*;
+        use axum_session::{SessionConfig, SessionLayer, SessionStore};
+        use axum_session_auth::AuthConfig;
+        use axum_session_sqlx::SessionSqlitePool;
+        use sqlx::sqlite::{SqliteConnectOptions, SqlitePoolOptions};
+        use std::str::FromStr;
+
+        let pool = SqlitePoolOptions::new()
+            .max_connections(5)
+            .connect_with(SqliteConnectOptions::from_str("sqlite::memory:").unwrap())
+            .await?;
+
+        // This Defaults as normal Cookies.
+        // To enable Private cookies for integrity, and authenticity please check the next Example.
+        let session_config = SessionConfig::default().with_table_name("test_table");
+        let auth_config = AuthConfig::<i64>::default().with_anonymous_user_id(Some(1));
+        let session_store =
+            SessionStore::<SessionSqlitePool>::new(Some(pool.clone().into()), session_config)
+                .await
+                .unwrap();
+
+        User::create_user_tables(&pool).await?;
+
+        // build our application with some routes
+        Ok(
+            dioxus::server::router(app)
+                .layer(
+                    axum_session_auth::AuthSessionLayer::<
+                        User,
+                        i64,
+                        SessionSqlitePool,
+                        sqlx::SqlitePool,
+                    >::new(Some(pool))
+                    .with_config(auth_config),
+                )
+                .layer(SessionLayer::new(session_store)),
+        )
+    });
+
+    dioxus::launch(app);
+}
+
+fn app() -> Element {
+    let mut user_name = use_action(get_user_name);
+    let mut permissions = use_action(get_permissions);
+    let mut login = use_action(login);
+
+    rsx! {
+        div {
+            button {
+                onclick: move |_|  {
+                    login.call();
+                },
+                "Login Test User"
+            }
+        }
+        div {
+            button {
+                onclick: move |_| {
+                    user_name.call();
+                },
+                "Get User Name"
+            }
+            "User name: {user_name.value().unwrap_or_default()}"
+        }
+        div {
+            button {
+                onclick: move |_| {
+                    permissions.call();
+                },
+                "Get Permissions"
+            }
+            "Permissions: {permissions.value().unwrap_or_default()}"
+        }
+    }
+}
+
+#[get("/api/user/name", auth: auth::Session)]
+pub async fn get_user_name() -> Result<String> {
+    Ok(auth
+        .current_user
+        .context("UNAUTHORIZED")?
+        .username
+        .to_string())
+}
+
+#[post("/api/user/login", auth: auth::Session)]
+pub async fn login() -> Result<()> {
+    auth.login_user(2);
+    Ok(())
+}
+
+#[get("/api/user/permissions", auth: auth::Session)]
+pub async fn get_permissions() -> Result<String> {
+    use crate::auth::User;
+    use axum_session_auth::{Auth, Rights};
+
+    let user = auth.current_user.as_ref().context("UNAUTHORIZED")?;
+
+    // lets check permissions only and not worry about if they are anon or not
+    let has_permissions =
+        Auth::<User, i64, sqlx::SqlitePool>::build([axum::http::Method::POST], false)
+            .requires(Rights::any([
+                Rights::permission("Category::View"),
+                Rights::permission("Admin::View"),
+            ]))
+            .validate(user, &axum::http::Method::GET, None)
+            .await;
+
+    if !has_permissions {
+        dioxus::core::bail!(
+            "User {}, Does not have permissions needed to view this page please login",
+            user.username
+        );
+    }
+
+    Ok(format!(
+        "User has Permissions needed. {:?}",
+        user.permissions
+    ))
+}