OXYGENHUB
◆ v0.4.1 oxygenhub / crates / hub / src / web / statics.rs
3.5 KiB · Rust · last changed Mermaid diagrams in Markdown 1 month ago source blame history raw
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//! Compiled-in static assets: the stylesheet, fonts and icons.
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use axum::extract::Path;
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use axum::http::{header, StatusCode};
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use axum::response::{IntoResponse, Response};
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const CSS: &str = include_str!("../../../../templates/style.css");
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const FAVICON: &str = include_str!("../../../../assets/icons/oxygenhub.svg");
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/// A short hash of the stylesheets and script the pages link, put in their
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/// URLs (`?v=…`): they are served for a long time and cached by any proxy
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/// in front of the hub (Cloudflare held a day-old stylesheet), so a new
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/// version must have a new URL.
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pub fn assets_version() -> &'static str {
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    static V: std::sync::OnceLock<String> = std::sync::OnceLock::new();
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    V.get_or_init(|| {
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        let mut h = blake3::Hasher::new();
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        h.update(CSS.as_bytes());
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        for a in ASSETS.iter().filter(|a| a.path == "github.css" || a.path == "hub.js") {
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            h.update(a.bytes);
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        }
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        h.finalize().to_hex()[..12].to_string()
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    })
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}
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struct Asset {
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    path: &'static str,
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    mime: &'static str,
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    bytes: &'static [u8],
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}
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const ASSETS: &[Asset] = &[
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    Asset { path: "fonts/Barlow-300.woff2", mime: "font/woff2", bytes: include_bytes!("../../../../assets/fonts/Barlow-300.woff2") },
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    Asset { path: "fonts/Barlow-400.woff2", mime: "font/woff2", bytes: include_bytes!("../../../../assets/fonts/Barlow-400.woff2") },
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    Asset { path: "fonts/Barlow-500.woff2", mime: "font/woff2", bytes: include_bytes!("../../../../assets/fonts/Barlow-500.woff2") },
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    Asset { path: "fonts/Barlow-600.woff2", mime: "font/woff2", bytes: include_bytes!("../../../../assets/fonts/Barlow-600.woff2") },
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    Asset {
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        path: "fonts/PressStart2P-400.woff2",
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        mime: "font/woff2",
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        bytes: include_bytes!("../../../../assets/fonts/PressStart2P-400.woff2"),
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    },
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    Asset { path: "github.css", mime: "text/css; charset=utf-8", bytes: include_bytes!("../../../../assets/github.css") },
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    Asset { path: "hub.js", mime: "text/javascript; charset=utf-8", bytes: include_bytes!("../../../../assets/hub.js") },
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    Asset {
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        path: "vendor/editor.js",
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        mime: "text/javascript; charset=utf-8",
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        bytes: include_bytes!("../../../../assets/vendor/editor.js"),
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    },
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    Asset {
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        path: "vendor/easymde.min.js",
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        mime: "text/javascript; charset=utf-8",
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        bytes: include_bytes!("../../../../assets/vendor/easymde.min.js"),
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    },
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    // Mermaid 12.1.0 (MIT, assets/vendor/mermaid.LICENSE), from npm's
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    // mermaid package, dist/mermaid.min.js; loaded only by pages with a
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    // diagram.
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    Asset {
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        path: "vendor/mermaid.min.js",
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        mime: "text/javascript; charset=utf-8",
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        bytes: include_bytes!("../../../../assets/vendor/mermaid.min.js"),
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    },
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    Asset {
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        path: "vendor/easymde.min.css",
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        mime: "text/css; charset=utf-8",
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        bytes: include_bytes!("../../../../assets/vendor/easymde.min.css"),
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    },
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];
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const CACHE: &str = "public, max-age=86400";
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pub async fn style() -> Response {
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    ([(header::CONTENT_TYPE, "text/css; charset=utf-8"), (header::CACHE_CONTROL, CACHE)], CSS).into_response()
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}
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pub async fn favicon() -> Response {
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    ([(header::CONTENT_TYPE, "image/svg+xml"), (header::CACHE_CONTROL, CACHE)], FAVICON).into_response()
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}
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pub async fn asset(Path(path): Path<String>) -> Response {
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    match ASSETS.iter().find(|a| a.path == path) {
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        Some(a) => {
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            ([(header::CONTENT_TYPE, a.mime), (header::CACHE_CONTROL, "public, max-age=31536000, immutable")], a.bytes).into_response()
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        }
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        None => StatusCode::NOT_FOUND.into_response(),
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    }
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}