Better frontend assets handling and move the react app to /account/ (#1324)

This makes the Vite assets handling better, namely:

 - make it possible to include any vite assets in the templates
 - include the right `<link rel="preload">` tags for assets
 - include Subresource Integrity hashes
 - pre-compress assets and remove on-the-fly compression by the Rust server
 - build the CSS used by templates through Vite

It also moves the React app from /app/ to /account/, and remove some of the old SSR account screens.

crates/router/src/endpoints.rs

@@ -24,6 +24,7 @@ pub enum PostAuthAction {
     ContinueCompatSsoLogin { id: Ulid },
     ChangePassword,
     LinkUpstream { id: Ulid },
+    ManageAccount,
 }
 
 impl PostAuthAction {
@@ -48,6 +49,7 @@ impl PostAuthAction {
             Self::ContinueCompatSsoLogin { id } => CompatLoginSsoComplete::new(*id, None).go(),
             Self::ChangePassword => AccountPassword.go(),
             Self::LinkUpstream { id } => UpstreamOAuth2Link::new(*id).go(),
+            Self::ManageAccount => Account.go(),
         }
     }
 }
@@ -335,7 +337,7 @@ impl From<Option<PostAuthAction>> for Register {
     }
 }
 
-/// `GET|POST /account/emails/verify/:id`
+/// `GET|POST /verify-email/:id`
 #[derive(Debug, Clone)]
 pub struct AccountVerifyEmail {
     id: Ulid,
@@ -367,19 +369,19 @@ impl AccountVerifyEmail {
 impl Route for AccountVerifyEmail {
     type Query = PostAuthAction;
     fn route() -> &'static str {
-        "/account/emails/verify/:id"
-    }
-
-    fn path(&self) -> std::borrow::Cow<'static, str> {
-        format!("/account/emails/verify/{}", self.id).into()
+        "/verify-email/:id"
     }
 
     fn query(&self) -> Option<&Self::Query> {
         self.post_auth_action.as_ref()
     }
+
+    fn path(&self) -> std::borrow::Cow<'static, str> {
+        format!("/verify-email/{}", self.id).into()
+    }
 }
 
-/// `GET /account/emails/add`
+/// `GET /add-email`
 #[derive(Default, Debug, Clone)]
 pub struct AccountAddEmail {
     post_auth_action: Option<PostAuthAction>,
@@ -388,7 +390,7 @@ pub struct AccountAddEmail {
 impl Route for AccountAddEmail {
     type Query = PostAuthAction;
     fn route() -> &'static str {
-        "/account/emails/add"
+        "/add-email"
     }
 
     fn query(&self) -> Option<&Self::Query> {
@@ -404,28 +406,28 @@ impl AccountAddEmail {
     }
 }
 
-/// `GET /account`
+/// `GET /account/`
 #[derive(Default, Debug, Clone)]
 pub struct Account;
 
 impl SimpleRoute for Account {
-    const PATH: &'static str = "/account";
+    const PATH: &'static str = "/account/";
 }
 
-/// `GET|POST /account/password`
+/// `GET /account/*`
+#[derive(Default, Debug, Clone)]
+pub struct AccountWildcard;
+
+impl SimpleRoute for AccountWildcard {
+    const PATH: &'static str = "/account/*rest";
+}
+
+/// `GET|POST /change-password`
 #[derive(Default, Debug, Clone)]
 pub struct AccountPassword;
 
 impl SimpleRoute for AccountPassword {
-    const PATH: &'static str = "/account/password";
-}
-
-/// `GET|POST /account/emails`
-#[derive(Default, Debug, Clone)]
-pub struct AccountEmails;
-
-impl SimpleRoute for AccountEmails {
-    const PATH: &'static str = "/account/emails";
+    const PATH: &'static str = "/change-password";
 }
 
 /// `GET /authorize/:grant_id`

crates/router/src/url_builder.rs

@@ -1,4 +1,4 @@
-// Copyright 2022 The Matrix.org Foundation C.I.C.
+// Copyright 2022, 2023 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.
@@ -14,6 +14,8 @@
 
 //! Utility to build URLs
 
+use std::borrow::Cow;
+
 use ulid::Ulid;
 use url::Url;
 
@@ -21,7 +23,8 @@ use crate::traits::Route;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct UrlBuilder {
-    base: Url,
+    http_base: Url,
+    assets_base: Cow<'static, str>,
     issuer: Url,
 }
 
@@ -30,21 +33,26 @@ impl UrlBuilder {
     where
         U: Route,
     {
-        destination.absolute_url(&self.base)
+        destination.absolute_url(&self.http_base)
     }
 
     pub fn absolute_redirect<U>(&self, destination: &U) -> axum::response::Redirect
     where
         U: Route,
     {
-        destination.go_absolute(&self.base)
+        destination.go_absolute(&self.http_base)
     }
 
     /// Create a new [`UrlBuilder`] from a base URL
     #[must_use]
-    pub fn new(base: Url, issuer: Option<Url>) -> Self {
+    pub fn new(base: Url, issuer: Option<Url>, assets_base: Option<String>) -> Self {
         let issuer = issuer.unwrap_or_else(|| base.clone());
-        Self { base, issuer }
+        let assets_base = assets_base.map_or(Cow::Borrowed("/assets/"), Cow::Owned);
+        Self {
+            http_base: base,
+            assets_base,
+            issuer,
+        }
     }
 
     /// OIDC issuer
@@ -107,6 +115,12 @@ impl UrlBuilder {
         self.url_for(&crate::endpoints::StaticAsset::new(path))
     }
 
+    /// Static asset base
+    #[must_use]
+    pub fn assets_base(&self) -> &str {
+        &self.assets_base
+    }
+
     /// Upstream redirect URI
     #[must_use]
     pub fn upstream_oauth_callback(&self, id: Ulid) -> Url {