Have a unified URL builder/router

crates/router/src/lib.rs

@@ -0,0 +1,53 @@
+// Copyright 2022 The Matrix.org Foundation C.I.C.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#![deny(clippy::pedantic)]
+
+pub(crate) mod endpoints;
+pub(crate) mod traits;
+mod url_builder;
+
+pub use self::{endpoints::*, traits::Route, url_builder::UrlBuilder};
+
+#[cfg(test)]
+mod tests {
+    use std::borrow::Cow;
+
+    use url::Url;
+
+    use super::*;
+
+    #[test]
+    fn test_relative_urls() {
+        assert_eq!(
+            OidcConfiguration.relative_url(),
+            Cow::Borrowed("/.well-known/openid-configuration")
+        );
+        assert_eq!(Index.relative_url(), Cow::Borrowed("/"));
+        assert_eq!(
+            Login::and_continue_grant(42).relative_url(),
+            Cow::Borrowed("/login?next=continue_authorization_grant&data=42")
+        );
+    }
+
+    #[test]
+    fn test_absolute_urls() {
+        let base = Url::try_from("https://example.com/").unwrap();
+        assert_eq!(Index.absolute_url(&base).as_str(), "https://example.com/");
+        assert_eq!(
+            OidcConfiguration.absolute_url(&base).as_str(),
+            "https://example.com/.well-known/openid-configuration"
+        );
+    }
+}