FSP error code mapping

webdav.js

/**
 * WebDAV error code map.
 * All taken from http://msdn.microsoft.com/en-us/library/aa142917(v=exchg.65).aspx
 * @const
 * @type {Object}
 */
var ERROR_MAP = {
  DELETE: {
    '204': 'OK',
    '423': 'IN_USE'
  },

  MOVE: {
    '201': 'OK',
    '204': 'OK',
    '403': 'INVALID_OPERATION',
    '409': 'FAILED',
    '412': 'EXISTS',
    '423': 'IN_USE',
    '502': 'ACCESS_DENIED'
  },

  COPY: {
    '201': 'OK',
    '204': 'OK',
    '403': 'INVALID_OPERATION',
    '409': 'FAILED',
    '412': 'EXISTS',
    '423': 'IN_USE',
    '502': 'ACCESS_DENIED',
    '507': 'NO_SPACE'
  }
};

/**
 * Converts a HTTP error code into its equivalent code for the FSP API.
 * @param {number} code The HTTP verb for the request.
 * @param {number} code The HTTP error code.
 * @return {string} The FSP error code.
 */
var getError = function(verb, code) {
  code = '' + code;
  if (verb in ERROR_MAP) {
    var map = ERROR_MAP[verb];
    if (code in map) {
      return map[code];
    } else {
      return 'FAILED';
    }
  } else {
    throw new Error('Invalid HTTP verb: ' + verb);
  }
};