stac-node-validator/src/iri.js

STAC Validator for NodeJS

const { parse } = require('uri-js');

// We don't allow empty URIs, same-document and mailto here
const IRI = {
  iri: (value) => {
    if (typeof value !== 'string' || value.length === 0) {
      return false;
    }

    const iri = parse(value);
    if (
      (iri.reference === 'absolute' || iri.reference === 'uri') &&
      iri.scheme &&
      (iri.host || (iri.scheme === 'file' && iri.path))
    ) {
      return true;
    }

    return false;
  },
  'iri-reference': (value) => {
    if (typeof value !== 'string' || value.length === 0) {
      return false;
    }

    const iri = parse(value);
    if (
      (iri.reference === 'absolute' || iri.reference === 'uri') &&
      iri.scheme &&
      (iri.host || (iri.scheme === 'file' && iri.path))
    ) {
      return true;
    }

    return iri.path && (iri.reference === 'relative' || iri.reference === 'uri');
  },
};

module.exports = IRI;