feat: add safe Gitea sync and signed updates

2026-08-27 00:38:58 +02:00
parent cb9bdcd713
commit d47c7b5e41
46 changed files with 1658 additions and 246 deletions
@@ -0,0 +1,34 @@
+import { createHash, createPrivateKey, createPublicKey, generateKeyPairSync } from "node:crypto";
+import { mkdir, readFile, writeFile } from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
+const defaultPrivatePath = path.join(
+  process.env.APPDATA || path.join(os.homedir(), "AppData", "Roaming"),
+  "forgeflow",
+  "release-signing-private.pem",
+);
+const privatePath = path.resolve(process.env.FORGEFLOW_UPDATE_SIGNING_PRIVATE_KEY || defaultPrivatePath);
+const publicPath = path.join(root, "build", "update-signing-public.pem");
+
+let privateKey;
+try {
+  privateKey = createPrivateKey(await readFile(privatePath));
+  if (privateKey.asymmetricKeyType !== "ed25519") throw new Error("The existing key is not Ed25519.");
+} catch (error) {
+  if (error.code !== "ENOENT") throw error;
+  privateKey = generateKeyPairSync("ed25519").privateKey;
+  await mkdir(path.dirname(privatePath), { recursive: true, mode: 0o700 });
+  await writeFile(privatePath, privateKey.export({ type: "pkcs8", format: "pem" }), { mode: 0o600, flag: "wx" });
+}
+
+const publicKey = createPublicKey(privateKey);
+const publicPem = publicKey.export({ type: "spki", format: "pem" });
+await mkdir(path.dirname(publicPath), { recursive: true });
+await writeFile(publicPath, publicPem, { mode: 0o644 });
+const fingerprint = createHash("sha256").update(publicKey.export({ type: "spki", format: "der" })).digest("hex");
+console.log(`ForgeFlow Ed25519 update key ready. Public key fingerprint: SHA256:${fingerprint}`);
+console.log(`Private key: ${privatePath}`);
+console.log(`Public key:  ${publicPath}`);