@twec/node-suite/lib/xml.js

Generic functionality for connecting to NetSuite Web Services from Node

const isSomething = x => Boolean(x) || x === 0;

const escapeXmlText = (text) => {
  if (!isSomething(text)) {
    return '';
  }
  const str = String(text);
  if ((/[&<>]/).test(str)) {
    return `<![CDATA[${str.replace(/]]>/, ']]]]><![CDATA[>')}]]>`;
  }
  return str;
};

const escapeXmlAttribute = attribute => String(attribute)
  .replace(/&/g, '&amp;')
  .replace(/'/g, '&apos;')
  .replace(/"/g, '&quot;')
  .replace(/</g, '&lt;')
  .replace(/>/g, '&gt;');

const serializeAttributeValue = (value, escapeValue) => {
  if (!isSomething(value)) {
    return '';
  }
  return escapeValue ? escapeXmlAttribute(value) : value;
};

const serializeAttribute = (attributeKey, attributeValue, escapeValue, quote) => {
  const value = serializeAttributeValue(attributeValue, escapeValue);
  return `${attributeKey}=${quote}${value}${quote}`;
};

const serializeAttrs = (attributes, escapeValue, quote) => {
  if (!isSomething(attributes)) {
    return '';
  }
  let result = '';
  const attrKeys = Object.keys(attributes);
  attrKeys.forEach((key) => {
    const attributeString = serializeAttribute(key, attributes[key], escapeValue, quote);
    result += ` ${attributeString}`;
  });
  return result;
};

/**
 * @param  {XmlNode|XmlNode[]} ast
 * @return {string}
 */
const xml = (ast, options = {}) => {
  const {
    escapeAttributes = true,
    escapeText = true,
    selfClose = true,
    quote = '"',
  } = options;
  if (Array.isArray(ast)) {
    return ast.map(astItem => xml(astItem, options)).join('');
  }
  if (ast.type === 'text') {
    return `${escapeText ? escapeXmlText(ast.value) : ast.value}`;
  }
  const attributes = serializeAttrs(ast.attributes, escapeAttributes, quote);
  if ((ast.children || []).length || !selfClose) {
    return `<${ast.name}${attributes}>${xml(ast.children, options)}</${ast.name}>`;
  }
  if (typeof ast.value === 'string') {
    return `<${ast.name}${attributes}>${escapeText ? escapeXmlText(ast.value) : ast.value}</${ast.name}>`;
  }
  return `<${ast.name}${attributes}/>`;
};

module.exports = xml;