add parseKeywordValue helper

src/helpers/index.js

@@ -28,3 +28,4 @@ export * from './get-descriptor-addon';
 export * from './parse-flags';
 export * from './match-request-props';
 export * from './local-storage-utils';
+export * from './parse-keyword-value';

src/helpers/parse-keyword-value.js

@@ -0,0 +1,24 @@
+/**
+ * Modify value according to a keyword.
+ * Pass initial value if a keyword is not found.
+ * @param {string} rawValue
+ * @returns {string}
+ */
+export const parseKeywordValue = (rawValue) => {
+    const NOW_VALUE_KEYWORD = '$now$';
+    const CURRENT_DATE_KEYWORD = '$currentDate$';
+
+    let parsedValue;
+
+    if (rawValue === NOW_VALUE_KEYWORD) {
+        // Set to current time in ms, e.g 1667915146503
+        parsedValue = Date.now().toString();
+    } else if (rawValue === CURRENT_DATE_KEYWORD) {
+        // Set to current date e.g 'Tue Nov 08 2022 13:53:19 GMT+0300'
+        parsedValue = Date();
+    } else {
+        parsedValue = rawValue;
+    }
+
+    return parsedValue;
+};

src/scriptlets/trusted-set-cookie.js

@@ -3,6 +3,7 @@ import {
     nativeIsNaN,
     isCookieSetWithValue,
     concatCookieNameValuePath,
+    parseKeywordValue,
     // following helpers should be imported and injected
     // because they are used by helpers above
     isValidCookieRawPath,
@@ -90,21 +91,10 @@ export function trustedSetCookie(source, name, value, offsetExpiresSec = '', rel
         return;
     }
 
-    const NOW_VALUE_KEYWORD = '$now$';
     const ONE_YEAR_EXPIRATION_KEYWORD = '1year';
     const ONE_DAY_EXPIRATION_KEYWORD = '1day';
 
-    let parsedValue;
-
-    if (value === NOW_VALUE_KEYWORD) {
-        // Set cookie value to current time if corresponding keyword was passed
-        const date = new Date();
-        const currentTime = date.getTime();
-
-        parsedValue = currentTime.toString();
-    } else {
-        parsedValue = value;
-    }
+    const parsedValue = parseKeywordValue(value);
 
     let cookieToSet = concatCookieNameValuePath(name, parsedValue, path);
     if (!cookieToSet) {
@@ -161,5 +151,6 @@ trustedSetCookie.injections = [
     isCookieSetWithValue,
     concatCookieNameValuePath,
     isValidCookieRawPath,
+    parseKeywordValue,
     getCookiePath,
 ];

src/scriptlets/trusted-set-local-storage-item.js

@@ -2,6 +2,7 @@ import {
     hit,
     nativeIsNaN,
     setItem,
+    parseKeywordValue,
 } from '../helpers/index';
 
 /* eslint-disable max-len */
@@ -58,19 +59,7 @@ export function trustedSetLocalStorageItem(source, key, value) {
         return;
     }
 
-    const NOW_VALUE_KEYWORD = '$now$';
-    const CURRENT_DATE_KEYWORD = '$currentDate$';
-
-    let parsedValue;
-
-    // Set item value to current time if corresponding keyword was passed
-    if (value === NOW_VALUE_KEYWORD) {
-        parsedValue = Date.now().toString();
-    } else if (value === CURRENT_DATE_KEYWORD) {
-        parsedValue = Date();
-    } else {
-        parsedValue = value;
-    }
+    const parsedValue = parseKeywordValue(value);
 
     setItem(key, parsedValue);
     hit(source);
@@ -85,4 +74,5 @@ trustedSetLocalStorageItem.injections = [
     hit,
     nativeIsNaN,
     setItem,
+    parseKeywordValue,
 ];