From 196f1edb086483b3ed08e3b417343a153669ffe9 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 26 Mar 2022 13:43:52 +0000
Subject: [PATCH] actix: experiments: Test program: CORS

Partially C&P from Actix docs.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 Cargo.lock           | 16 ++++++++++++++++
 daemon/Cargo.toml    |  1 +
 daemon/actix-test.rs | 10 +++++++++-
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 68325fb6..b8da1555 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,6 +19,21 @@ dependencies = [
  "tokio-util 0.7.0",
 ]
 
+[[package]]
+name = "actix-cors"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "414360eed71ba2d5435b185ba43ecbe281dfab5df3898286d6b7be8074372c92"
+dependencies = [
+ "actix-utils",
+ "actix-web",
+ "derive_more",
+ "futures-util",
+ "log 0.4.16",
+ "once_cell",
+ "smallvec",
+]
+
 [[package]]
 name = "actix-files"
 version = "0.6.0"
@@ -2892,6 +2907,7 @@ dependencies = [
 name = "otter-daemon"
 version = "0.7.3"
 dependencies = [
+ "actix-cors",
  "actix-files",
  "actix-web",
  "fehler",
diff --git a/daemon/Cargo.toml b/daemon/Cargo.toml
index 9119531f..9a1dbb74 100644
--- a/daemon/Cargo.toml
+++ b/daemon/Cargo.toml
@@ -44,6 +44,7 @@ structopt="0.3"
 
 actix-web = "4"
 actix-files = "0.6"
+actix-cors = "0.6"
 
 rocket = { version="^0.4.6", features=["sse"] }
 rocket_contrib = { version="0.4", default-features=false, features=["tera_templates", "helmet", "json", "serve"] }
diff --git a/daemon/actix-test.rs b/daemon/actix-test.rs
index a17d5c73..27c71b66 100644
--- a/daemon/actix-test.rs
+++ b/daemon/actix-test.rs
@@ -8,6 +8,7 @@ use actix_web::http::Method;
 use actix_web::HttpResponse;
 use actix_web::dev::Payload;
 use actix_web::middleware;
+use actix_cors::Cors;
 
 use std::convert::Infallible;
 
@@ -44,8 +45,15 @@ async fn wombat(remain: Remain) -> impl Responder {
     format!("Hello {:?}", remain)
 }
 
+fn update_cors() -> Cors {
+  Cors::default()
+      .allowed_methods([Method::GET])
+
+}
+
 //#[route("/wombat", method="GET", method="HEAD")]
-#[route("/foo", method="GET", method="HEAD")]
+#[route("/foo", method="GET", method="HEAD",
+        wrap = "update_cors()")]
 //#[get("/foo")]
 async fn foo() -> impl Responder {
   "foo\r\n"
-- 
2.30.2