SONAR-25803 Calculate PAT expiry date in UTC (#3760)

GitOrigin-RevId: 8cceb8b386da5c35bc9f8c5bce4eaeecab841fd3

Author: sarath-nair-sonarsource

libs/sq-server-commons/src/helpers/__tests__/tokens-test.ts

@@ -118,6 +118,15 @@ describe('computeTokenExpirationDate', () => {
   ])('should correctly compute the proper expiration date for %s days', (days, expected) => {
     expect(computeTokenExpirationDate(Number(days))).toBe(expected);
   });
+
+  it('should calculate expiration date in UTC regardless of local timezone', () => {
+    const result = computeTokenExpirationDate(Number(TokenExpiration.OneMonth));
+    expect(result).toBe('2022-07-01');
+    const date = new Date(result);
+    expect(date.getUTCDate()).toBe(1);
+    expect(date.getUTCMonth()).toBe(6);
+    expect(date.getUTCFullYear()).toBe(2022);
+  });
 });
 
 describe('getNextTokenName', () => {

libs/sq-server-commons/src/helpers/tokens.ts

@@ -66,9 +66,15 @@ export async function getAvailableExpirationOptions() {
 }
 
 export function computeTokenExpirationDate(days: number) {
-  const expirationDate = now();
-  expirationDate.setDate(expirationDate.getDate() + days);
-  return toShortISO8601String(expirationDate);
+  const currentDate = now();
+  const utcDate = new Date(
+    Date.UTC(
+      currentDate.getUTCFullYear(),
+      currentDate.getUTCMonth(),
+      currentDate.getUTCDate() + days,
+    ),
+  );
+  return toShortISO8601String(utcDate);
 }
 
 export function getNextTokenName(tokenNameBase: string, tokens: UserToken[]) {