feat: allow to specify maxSatisfying for /releases api (#42)

Author: ym

package-lock.json

@@ -33,6 +33,7 @@
     "helmet": "^7.1.0",
     "http-proxy-middleware": "^3.0.3",
     "jose": "^5.2.4",
+    "lru-cache": "^11.2.2",
     "openid-client": "^5.6.5",
     "prisma": "^5.13.0",
     "semver": "^7.6.3",
@@ -44,7 +45,8 @@
     "bufferutil": "^4.0.8"
   },
   "devDependencies": {
-    "prettier": "3.2.5",
-    "@types/semver": "^7.5.8"
+    "@types/lru-cache": "^7.10.9",
+    "@types/semver": "^7.5.8",
+    "prettier": "3.2.5"
   }
 }

package.json

@@ -0,0 +1,47 @@
+
+import { createHash } from "crypto";
+import { type GetObjectCommandOutput } from "@aws-sdk/client-s3";
+import { InternalServerError } from "./errors";
+import { validRange } from "semver";
+
+// Helper function to convert stream to string
+export async function streamToString(stream: any): Promise<string> {
+  const chunks: Uint8Array[] = [];
+  
+  for await (const chunk of stream) {
+    chunks.push(chunk);
+  }
+  
+  const result = Buffer.concat(chunks).toString("utf-8");
+  return result.trimEnd();
+}
+  
+// Helper function to convert stream to buffer
+export async function streamToBuffer(stream: any): Promise<Buffer> {
+  const chunks = [];
+  for await (const chunk of stream) {
+    chunks.push(chunk);
+  }
+  return Buffer.concat(chunks);
+} 
+
+export async function verifyHash(
+  file: GetObjectCommandOutput,
+  hashFile: GetObjectCommandOutput,
+  exception?: string,
+): Promise<boolean> {
+  const content = await streamToBuffer(file.Body);
+  const remoteHash = await streamToString(hashFile.Body);
+  const localHash = createHash("sha256").update(content).digest("hex");
+
+  const matches = remoteHash.trim() === localHash;
+  if (!matches && exception) {
+    throw new InternalServerError(exception);
+  }
+  return matches;
+}
+
+export function toSemverRange(range?: string) {
+  if (!range) return "*";
+  return validRange(range) || "*";
+}