Use R2 for my data view

functions/api/me/items/[type]/[id].ts

@@ -19,57 +19,28 @@ export async function onRequestGet(context: RequestContext) {
     return jsonError("Item does not exist", 404);
 
   if (type === "report") {
-    let unsignedUrls = [];
-    const exp = Math.round(Date.now() / 1000) + 1800;
-
-    for (const attachment of data.attachments)
-      unsignedUrls.push(
-        `https://mediaproxy.carcrushers.cc/${attachment}?Expires=${exp}&KeyName=portal-media-linkgen`,
+    const { AwsClient } = await import("aws4fetch");
+    const aws = new AwsClient({
+      accessKeyId: context.env.R2_ACCESS_KEY,
+      secretAccessKey: context.env.R2_SECRET_KEY,
+    });
+
+    let urls = [];
+
+    for (const attachment of data.attachments) {
+      const { url } = await aws.sign(
+        `https://car-crushers.${context.env.R2_ZONE}.r2.cloudflarestorage.com/${attachment}?X-Amz-Expires=1800`,
+        {
+          aws: {
+            signQuery: true,
+          },
+        },
       );
 
-    let resolvedUrls = [];
-    let signingPromises = [];
-    const key = await crypto.subtle.importKey(
-      "raw",
-      Uint8Array.from(atob(context.env.URL_SIGNING_KEY), (c) =>
-        c.charCodeAt(0),
-      ),
-      { hash: "SHA-1", name: "HMAC" },
-      false,
-      ["sign"],
-    );
-
-    for (let i = 0; i < unsignedUrls.length; i++)
-      signingPromises.push(
-        crypto.subtle.sign(
-          "HMAC",
-          key,
-          new TextEncoder().encode(unsignedUrls[i]),
-        ),
-      );
-
-    let signatures: ArrayBuffer[];
-
-    try {
-      signatures = await Promise.all(signingPromises);
-    } catch (e) {
-      console.log(e);
-
-      return jsonError("Failed to create signed links", 500);
-    }
-
-    for (let i = 0; i < signatures.length; i++) {
-      resolvedUrls.push(
-        `${unsignedUrls[i]}&Signature=${btoa(
-          String.fromCharCode(...new Uint8Array(signatures[i])),
-        )
-          .replaceAll("+", "-")
-          .replaceAll("/", "_")
-          .replaceAll("=", "")}`,
-      );
+      urls.push(url);
     }
 
-    data.resolved_attachments = resolvedUrls;
+    data.resolved_attachments = urls;
   }
 
   return jsonResponse(JSON.stringify(data));