From d2455aa1c1bfc599a07966a7d717c1380d41bbc0 Mon Sep 17 00:00:00 2001
From: Christine Dodrill <me@christine.website>
Date: Thu, 14 Jan 2021 22:36:34 -0500
Subject: Cache better (#296)

* Many improvements around bandwidth use

- Use ETags for RSS/Atom feeds
- Use cache-control headers
- Update to rust nightly (for rust-analyzer and faster builds)
- Limit feeds to the last 20 posts:
  https://twitter.com/theprincessxena/status/1349891678857998339
- Use if-none-match to limit bandwidth further

Also does this:

- bump go_vanity to 0.3.0 and lets users customize the branch name
- fix formatting on jsonfeed
- remove last vestige of kubernetes/docker support

Signed-off-by: Christine Dodrill <me@christine.website>

* expire cache quicker for dynamic pages

Signed-off-by: Christine Dodrill <me@christine.website>

* add rss ttl

Signed-off-by: Christine Dodrill <me@christine.website>

* add blogpost

Signed-off-by: Christine Dodrill <me@christine.website>
---
 src/main.rs | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 50 insertions(+), 7 deletions(-)

(limited to 'src/main.rs')

diff --git a/src/main.rs b/src/main.rs
index c05ac49..285bb93 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -113,20 +113,39 @@ async fn main() -> Result<()> {
         .and(with_state(state.clone()))
         .and_then(handlers::patrons);
 
-    let files = warp::path("static").and(warp::fs::dir("./static"));
-    let css = warp::path("css").and(warp::fs::dir("./css"));
+    let files = warp::path("static")
+        .and(warp::fs::dir("./static"))
+        .map(|reply| {
+            warp::reply::with_header(
+                reply,
+                "Cache-Control",
+                "public, max-age=86400, stale-if-error=60",
+            )
+        });
+
+    let css = warp::path("css").and(warp::fs::dir("./css")).map(|reply| {
+        warp::reply::with_header(
+            reply,
+            "Cache-Control",
+            "public, max-age=86400, stale-if-error=60",
+        )
+    });
+
     let sw = warp::path("sw.js").and(warp::fs::file("./static/js/sw.js"));
     let robots = warp::path("robots.txt").and(warp::fs::file("./static/robots.txt"));
     let favicon = warp::path("favicon.ico").and(warp::fs::file("./static/favicon/favicon.ico"));
 
     let jsonfeed = warp::path("blog.json")
         .and(with_state(state.clone()))
+        .and(warp::header::optional("if-none-match"))
         .and_then(handlers::feeds::jsonfeed);
     let atom = warp::path("blog.atom")
         .and(with_state(state.clone()))
+        .and(warp::header::optional("if-none-match"))
         .and_then(handlers::feeds::atom);
     let rss = warp::path("blog.rss")
         .and(with_state(state.clone()))
+        .and(warp::header::optional("if-none-match"))
         .and_then(handlers::feeds::rss);
     let sitemap = warp::path("sitemap.xml")
         .and(with_state(state.clone()))
@@ -135,6 +154,7 @@ async fn main() -> Result<()> {
     let go_vanity_jsonfeed = warp::path("jsonfeed")
         .and(warp::any().map(move || "christine.website/jsonfeed"))
         .and(warp::any().map(move || "https://tulpa.dev/Xe/jsonfeed"))
+        .and(warp::any().map(move || "master"))
         .and_then(go_vanity::gitea);
 
     let metrics_endpoint = warp::path("metrics").and(warp::path::end()).map(move || {
@@ -149,14 +169,37 @@ async fn main() -> Result<()> {
             .unwrap()
     });
 
-    let site = index
-        .or(contact.or(feeds).or(resume.or(signalboost)).or(patrons))
-        .or(blog_index.or(series.or(series_view).or(post_view)))
+    let static_pages = index
+        .or(feeds)
+        .or(resume.or(signalboost))
+        .or(patrons)
+        .or(jsonfeed.or(atom.or(sitemap)).or(rss))
+        .or(favicon.or(robots).or(sw))
+        .or(contact)
+        .map(|reply| {
+            warp::reply::with_header(
+                reply,
+                "Cache-Control",
+                "public, max-age=86400, stale-if-error=60",
+            )
+        });
+
+    let dynamic_pages = blog_index
+        .or(series.or(series_view).or(post_view))
         .or(gallery_index.or(gallery_post_view))
         .or(talk_index.or(talk_post_view))
-        .or(jsonfeed.or(atom).or(rss.or(sitemap)))
-        .or(files.or(css).or(favicon).or(sw.or(robots)))
+        .map(|reply| {
+            warp::reply::with_header(
+                reply,
+                "Cache-Control",
+                "public, max-age=600, stale-if-error=60",
+            )
+        });
+
+    let site = static_pages
+        .or(dynamic_pages)
         .or(healthcheck.or(metrics_endpoint).or(go_vanity_jsonfeed))
+        .or(files.or(css))
         .map(|reply| {
             warp::reply::with_header(
                 reply,
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