첫 커밋: 로컬 프로젝트 업로드

baron-sso/devfront/src/lib/oidcStorage.ts

@@ -0,0 +1,42 @@
+export type PersistedOidcUser = {
+  access_token?: string;
+  expires_at?: number;
+  profile?: Record<string, unknown>;
+};
+
+const OIDC_USER_KEY_PREFIX = "oidc.user:";
+const OIDC_CLIENT_ID = "devfront";
+
+export function findPersistedOidcUser(
+  storage: Storage = window.localStorage,
+): PersistedOidcUser | null {
+  for (let index = 0; index < storage.length; index += 1) {
+    const key = storage.key(index);
+    if (
+      key === null ||
+      !key.startsWith(OIDC_USER_KEY_PREFIX) ||
+      !key.endsWith(`:${OIDC_CLIENT_ID}`)
+    ) {
+      continue;
+    }
+
+    const rawValue = storage.getItem(key);
+    if (!rawValue) {
+      continue;
+    }
+
+    try {
+      const parsed = JSON.parse(rawValue) as PersistedOidcUser;
+      if (
+        typeof parsed.expires_at === "number" &&
+        parsed.expires_at * 1000 > Date.now()
+      ) {
+        return parsed;
+      }
+    } catch {
+      // Ignore malformed storage entries and keep scanning.
+    }
+  }
+
+  return null;
+}