Enable E-Tags for GUI and RAW

registry/src/http/api.ts

@@ -142,7 +142,7 @@ async function uploadPackage(ctx: ABC.Context) {
       }
       console.log("Setting new live version");
 
-      //TODO: Better option, since this could error whith multiple upload to the same package
+      //TODO: Better option, since this could error whith multiple uploads to the same package at the same time
       await db.package.update(
          { name: packageName },
          {

registry/src/http/raw.ts

@@ -19,6 +19,7 @@ export default function raw(g: ABC.Group) {
          ctx.params.path
       );
       if (!result) return E404();
-      return result;
+      ctx.response.headers.set("e-tag", result.etag);
+      return result.data;
    });
 }

registry/src/http/views.ts

@@ -1,29 +1,63 @@
 import { ABC } from "../deps.ts";
-import { basicauth, extractPackagePath } from "../utils.ts";
+import { basicauth, extractPackagePath, sortVersions } from "../utils.ts";
+
+import { Hash } from "../deps.ts";
+import db, { IPackage } from "../db.ts";
+
+const MAX_CACHE_AGE = 60 * 30; // 30 Minutes
+
+const CACHE_CONTROL = "public, max-age=" + MAX_CACHE_AGE;
 
 export default function views(g: ABC.Application) {
-   g.get(
-      "/",
-      async (ctx) => {
-         return ctx.render("index", {
-            search: ctx.queryParams["q"],
-         });
-         // const render = await IndexView();
-         // console.log(render);
-         // ctx.response.body = render;
-         // ctx.response.status = 200;
-      },
-      basicauth("views")
-   );
-   g.get(
-      "/package/:package",
-      async (ctx) => {
-         let [packageName, packageVersion] = extractPackagePath(
-            ctx.params.package
-         );
+   g.get("/", async (ctx) => {
+      ctx.response.headers.set("cache-control", CACHE_CONTROL);
 
-         return ctx.render("package", { packageName });
-      },
-      basicauth("views")
-   );
+      const search = ctx.queryParams.q;
+
+      let packages: IPackage[] = [];
+      if (search && search !== "") {
+         packages = await db.package.find({
+            name: RegExp(`${search}`),
+         });
+      } else {
+         packages = await db.package.find({});
+      }
+
+      const etag =
+         "W/" +
+         Hash.createHash("sha3-256")
+            .update(
+               packages
+                  .map((e) => {
+                     const sorted = e.versions.sort(sortVersions).reverse();
+                     return e.name + sorted[0];
+                  })
+                  .join(":")
+            )
+            .toString("base64");
+
+      ctx.response.headers.set("e-tag", etag);
+
+      return ctx.render("index", {
+         packages,
+         search,
+      });
+   });
+   g.get("/package/:package", async (ctx) => {
+      let [packageName, packageVersion] = extractPackagePath(
+         ctx.params.package
+      );
+
+      const pkg = await db.package.findOne({ name: packageName });
+
+      const etag =
+         "W/" +
+         Hash.createHash("sha3-256")
+            .update(`${packageName}:${packageVersion}`)
+            .toString("base64");
+
+      await ctx.render("package", { pkg });
+      ctx.response.headers.set("cache-control", CACHE_CONTROL);
+      ctx.response.headers.set("E-Tag", etag);
+   });
 }