Initial commit: OpenScript browser extension

src/utils/userScripts.js

@@ -0,0 +1,52 @@
+import { getScripts, getSecrets } from './storage.js';
+import { normalizeMatch } from './parser.js';
+
+export const isUserScriptsAvailable = async () => {
+  if (!chrome.userScripts) return false;
+  try {
+    await chrome.userScripts.getScripts();
+    return true;
+  } catch {
+    return false;
+  }
+};
+
+export const wrapScriptCode = (code, secrets = {}) => {
+  const envInjection = `
+// [OpenScript Injected Environment]
+const OpenScript = Object.freeze({
+  version: "1.0.0",
+  env: Object.freeze(${JSON.stringify(secrets)})
+});
+const env = OpenScript.env;
+const GM_getValue = (k, def) => (OpenScript.env[k] ?? def);
+`;
+  return `${envInjection}\n${code}`;
+};
+
+export const syncUserScripts = async () => {
+  if (!await isUserScriptsAvailable()) return false;
+
+  const [scripts, secrets] = await Promise.all([getScripts(), getSecrets()]);
+  const activeScripts = scripts.filter(s => s.enabled);
+
+  try {
+    const existing = await chrome.userScripts.getScripts();
+    if (existing.length) await chrome.userScripts.unregister({ ids: existing.map(s => s.id) });
+
+    if (!activeScripts.length) return true;
+
+    const toRegister = activeScripts.map(s => ({
+      id: s.id,
+      matches: (s.matches?.length ? s.matches : ['*://*/*']).map(normalizeMatch),
+      runAt: s.runAt || 'document_idle',
+      js: [{ code: wrapScriptCode(s.code, secrets) }],
+    }));
+
+    await chrome.userScripts.register(toRegister);
+    return true;
+  } catch (err) {
+    console.error('[OpenScript] sync failed:', err);
+    return false;
+  }
+};