fix(pack): lazy-load sharp and verify unpacked natives

Avoid crashing Electron at startup when sharp is corrupt, and fail pack if asarUnpack natives look truncated. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-08-07 07:47:36 +08:00
parent 4456eb0277
commit 8d5a68c71e
8 changed files with 370 additions and 7 deletions
@@ -0,0 +1,192 @@
+/**
+ * After electron-builder: fail the pack if sharp / @img look missing or truncated
+ * in release unpacked dirs. Catches AV quarantine and incomplete asarUnpack before shipping.
+ */
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '..');
+
+/**
+ * @param {string} startDir
+ * @returns {string | null}
+ */
+function findAsarUnpackedNodeModules(startDir) {
+  const direct = path.join(startDir, 'resources', 'app.asar.unpacked', 'node_modules');
+  if (fs.existsSync(direct)) return direct;
+
+  // macOS: *.app/Contents/Resources/app.asar.unpacked/node_modules
+  if (!fs.existsSync(startDir)) return null;
+  for (const name of fs.readdirSync(startDir)) {
+    if (!name.endsWith('.app')) continue;
+    const macNm = path.join(
+      startDir,
+      name,
+      'Contents',
+      'Resources',
+      'app.asar.unpacked',
+      'node_modules',
+    );
+    if (fs.existsSync(macNm)) return macNm;
+  }
+  return null;
+}
+
+/**
+ * @param {string} filePath
+ * @param {number} minBytes
+ */
+function assertJsLooksIntact(filePath, minBytes) {
+  if (!fs.existsSync(filePath)) {
+    throw new Error(`[verify-packaged-sharp] missing: ${filePath}`);
+  }
+  const st = fs.statSync(filePath);
+  if (st.size < minBytes) {
+    throw new Error(
+      `[verify-packaged-sharp] truncated (${st.size} B < ${minBytes}): ${filePath}`,
+    );
+  }
+  const head = fs.readFileSync(filePath, { encoding: 'utf8', flag: 'r' }).slice(0, 120);
+  const trimmed = head.trimStart();
+  const ok =
+    trimmed.startsWith("'use strict'") ||
+    trimmed.startsWith('"use strict"') ||
+    head.includes('require(') ||
+    head.includes('module.exports');
+  if (!ok) {
+    throw new Error(
+      `[verify-packaged-sharp] sharp entry does not look like JS (corrupt?): ${filePath}`,
+    );
+  }
+}
+
+/**
+ * @param {string} dir
+ */
+function assertHasNativeBinary(dir) {
+  if (!fs.existsSync(dir)) {
+    throw new Error(`[verify-packaged-sharp] missing native package dir: ${dir}`);
+  }
+  const stack = [dir];
+  while (stack.length) {
+    const cur = stack.pop();
+    if (!cur) break;
+    for (const name of fs.readdirSync(cur)) {
+      const p = path.join(cur, name);
+      const st = fs.statSync(p);
+      if (st.isDirectory()) {
+        stack.push(p);
+        continue;
+      }
+      if (
+        name.endsWith('.node') ||
+        name.endsWith('.dll') ||
+        name.endsWith('.dylib') ||
+        /\.so(\.|$)/u.test(name)
+      ) {
+        if (st.size < 50_000) {
+          throw new Error(
+            `[verify-packaged-sharp] native binary too small (${st.size} B): ${p}`,
+          );
+        }
+        return;
+      }
+    }
+  }
+  throw new Error(`[verify-packaged-sharp] no .node/.dll/.so under ${dir}`);
+}
+
+/**
+ * @param {{ label: string; unpackedRoot: string; imgDirs: string[] }} probe
+ */
+export function verifyUnpackedSharp(probe) {
+  const unpackedNm =
+    findAsarUnpackedNodeModules(probe.unpackedRoot) ??
+    path.join(probe.unpackedRoot, 'resources', 'app.asar.unpacked', 'node_modules');
+
+  const sharpIndex = path.join(unpackedNm, 'sharp', 'lib', 'index.js');
+  // Real sharp/lib/index.js is typically several KB; empty/AV-quarantined files fail here.
+  assertJsLooksIntact(sharpIndex, 32);
+
+  for (const img of probe.imgDirs) {
+    assertHasNativeBinary(path.join(unpackedNm, '@img', img));
+  }
+}
+
+/** @type {{ label: string; unpackedRoot: string; imgDirs: string[] }[]} */
+const PROBES = [
+  {
+    label: 'win-unpacked',
+    unpackedRoot: path.join(root, 'release', 'win-unpacked'),
+    imgDirs: ['sharp-win32-x64'],
+  },
+  {
+    label: 'mac-arm64',
+    unpackedRoot: path.join(root, 'release', 'mac-arm64'),
+    imgDirs: ['sharp-darwin-arm64'],
+  },
+  {
+    label: 'mac',
+    unpackedRoot: path.join(root, 'release', 'mac'),
+    imgDirs: ['sharp-darwin-x64', 'sharp-darwin-arm64'],
+  },
+  {
+    label: 'linux-unpacked',
+    unpackedRoot: path.join(root, 'release', 'linux-unpacked'),
+    imgDirs: ['sharp-linux-x64', 'sharp-linux-arm64'],
+  },
+];
+
+/**
+ * Verify every existing unpacked release dir. At least one must exist.
+ * For multi-arch probes, require at least one listed @img package that is present.
+ */
+export function verifyPackagedSharpRelease(releaseRoot = root) {
+  const probes = PROBES.map((p) => ({
+    ...p,
+    unpackedRoot: path.join(
+      releaseRoot,
+      path.relative(root, p.unpackedRoot),
+    ),
+  }));
+  const existing = probes.filter((p) => fs.existsSync(p.unpackedRoot));
+  if (existing.length === 0) {
+    throw new Error(
+      '[verify-packaged-sharp] no release unpacked dir found — run electron-builder first',
+    );
+  }
+
+  for (const probe of existing) {
+    const nm = findAsarUnpackedNodeModules(probe.unpackedRoot);
+    if (!nm) {
+      throw new Error(
+        `[verify-packaged-sharp] app.asar.unpacked/node_modules missing under ${probe.unpackedRoot}`,
+      );
+    }
+    const presentImg = probe.imgDirs.filter((d) =>
+      fs.existsSync(path.join(nm, '@img', d)),
+    );
+    if (presentImg.length === 0) {
+      throw new Error(
+        `[verify-packaged-sharp] none of @img/{${probe.imgDirs.join(',')}} under ${nm}`,
+      );
+    }
+    verifyUnpackedSharp({ ...probe, imgDirs: presentImg });
+    console.log(`[verify-packaged-sharp] OK: ${probe.label}`);
+  }
+}
+
+function main() {
+  verifyPackagedSharpRelease();
+}
+
+const entry = process.argv[1] ? pathToFileURL(path.resolve(process.argv[1])).href : '';
+if (import.meta.url === entry) {
+  try {
+    main();
+  } catch (err) {
+    console.error(err instanceof Error ? err.message : err);
+    process.exit(1);
+  }
+}