Setup repo redirect function

Author: Folyd

.gitignore

@@ -5,6 +5,7 @@
 Cargo.lock
 node_modules
 target
+.wrangler
 
 web/core
 web/*.html

_routes.json

@@ -0,0 +1,14 @@
+{
+    "version": 1,
+    "include": [
+        "/*"
+    ],
+    "exclude": [
+        "/",
+        "/*.html",
+        "/stats",
+        "/crates",
+        "/settings",
+        "/export"
+    ]
+}

functions/repo/[crate].js

@@ -0,0 +1,26 @@
+export async function onRequestGet(context) {
+    let crate = context.params.crate;
+    let response = await fetch(`https://crates.io/api/v1/crates/${crate}`, {
+        headers: {
+            "User-Agent": "Query.rs on Cloudflare Pages function",
+        }
+    });
+    if (response.status !== 200) {
+        return new Response(response.statusText, { status: response.status });
+    }
+    let data = await response.json();
+    console.log(data.crate);
+    if (data.crate) {
+        return Response.redirect(data.crate.repository || data.crate.homepage, 301);
+    } else {
+        const html = `<div>
+        <p>Sorry, the crate <b>${crate}</b> has no repository url. </p>
+        <h2 class="redirect">Go to <a href="https://crates.io/crates/${crate}">crates.io/crates/${crate}</a> or <a href="https://docs.rs/${crate}">docs.rs/${crate}</a></h2>
+        </div>`;
+        return new Response(html, {
+            headers: {
+                "content-type": "text/html;charset=UTF-8",
+            }
+        });
+    }
+}

package.json

@@ -0,0 +1,5 @@
+{
+  "devDependencies": {
+    "wrangler": "^3.62.0"
+  }
+}

wrangler.toml

@@ -0,0 +1,7 @@
+name = "query-rs"
+pages_build_output_dir = "./web/dist"
+compatibility_date = "2024-06-28"
+
+[dev]
+port = 8080
+local_protocol = "http"