video-ad-sdk/dist/tracker/helpers/parseMacro.js

VAST/VPAID SDK that allows video ads to be played on top of any player

const toUpperKeys = (map) => {
    const upperKeysMap = {};
    Object.keys(map).forEach((key) => {
        const { [key]: value } = map;
        upperKeysMap[key.toUpperCase()] = value;
    });
    return upperKeysMap;
};
const CACHEBUSTING_MAX = 1.0e10;
/**
 * Parses the passed macro with the passed data and returns the resulting parsed Macro.
 * If no CACHEBUSTING property is passed in the data it will generate a random one on its own.
 * If no TIMESTAMP property is passed in the data it will generate a one on its own.
 *
 * @param macro The string macro to be parsed.
 * @param data The data used by the macro.
 * @returns The parsed macro.
 */
export const parseMacro = (macro, data = {}) => {
    let parsedMacro = macro;
    const macroData = toUpperKeys(data);
    if (!macroData.CACHEBUSTING) {
        macroData.CACHEBUSTING = Math.round(Math.random() * CACHEBUSTING_MAX);
    }
    if (!macroData.TIMESTAMP) {
        macroData.TIMESTAMP = new Date().toISOString();
    }
    Object.keys(macroData).forEach((key) => {
        const value = encodeURIComponent(macroData[key]);
        parsedMacro = parsedMacro.replace(
        // eslint-disable-next-line security/detect-non-literal-regexp
        new RegExp(`\\[${key}\\]`, 'gm'), value);
    });
    return parsedMacro;
};