enable unix socket powers

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

Cargo.lock

@@ -2526,7 +2526,7 @@ checksum = "d089681aa106a86fade1b0128fb5daf07d5867a509ab036d99988dec80429a57"
 
 [[package]]
 name = "xesite"
-version = "2.2.1"
+version = "2.3.0"
 dependencies = [
  "cfcache",
  "chrono",
@@ -2548,7 +2548,7 @@ dependencies = [
  "pfacts",
  "pretty_env_logger",
  "prometheus",
- "rand 0.8.3",
+ "rand 0.7.3",
  "reqwest",
  "ructe",
  "sdnotify",
@@ -2559,6 +2559,7 @@ dependencies = [
  "sitemap",
  "thiserror",
  "tokio",
+ "tokio-stream",
  "tracing",
  "tracing-futures",
  "tracing-subscriber",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "xesite"
-version = "2.2.1"
+version = "2.3.0"
 authors = ["Christine Dodrill <me@christine.website>"]
 edition = "2018"
 build = "src/build.rs"
@@ -29,6 +29,7 @@ serde_yaml = "0.8"
 sitemap = "0.4"
 thiserror = "1"
 tokio = { version = "1", features = ["full"] }
+tokio-stream = { version = "0.1", features = ["net"] }
 tracing = "0.1"
 tracing-futures = "0.2"
 tracing-subscriber = { version = "0.2", features = ["fmt"] }

src/main.rs

@@ -7,6 +7,8 @@ use prometheus::{Encoder, TextEncoder};
 use std::net::IpAddr;
 use std::str::FromStr;
 use std::sync::Arc;
+use tokio::net::UnixListener;
+use tokio_stream::wrappers::UnixListenerStream;
 use warp::{path, Filter};
 
 pub mod app;
@@ -234,18 +236,30 @@ async fn main() -> Result<()> {
         }
     }
 
-    warp::serve(site)
+    let server = warp::serve(site);
+
+    match std::env::var("SOCKPATH") {
+        Ok(sockpath) => {
+            let _ = std::fs::remove_file(&sockpath);
+            let listener = UnixListener::bind(sockpath)?;
+            let incoming = UnixListenerStream::new(listener);
+            server.run_incoming(incoming).await;
+
+            Ok(())
+        }
+        Err(_) => {
+            server
                 .run((
-            IpAddr::from_str(&std::env::var("HOST").unwrap_or("::".into()))
+                    IpAddr::from_str(&std::env::var("HOST").unwrap_or("::".into()))?,
-                .expect("can't parse bindhost"),
                     std::env::var("PORT")
                         .unwrap_or("3030".into())
-                .parse::<u16>()
+                        .parse::<u16>()?,
-                .unwrap(),
                 ))
                 .await;
 
             Ok(())
+        }
+    }
 }
 
 include!(concat!(env!("OUT_DIR"), "/templates.rs"));