setUriSchemeToHttp static method

String? setUriSchemeToHttp(String originalURL)

Changes originalURL to use the http protocol if none specified.

This is used to ensure that URLs that do not include the scheme are treated as absolute paths (not relative to the document URL).

Implementation

static String? setUriSchemeToHttp(String originalURL) {
  String? finalUrl;
  Uri parsedUri;
  log.info(
      'Function : setUriSchemeToHttp, Parameters : {[originalURL,$originalURL ]}');
  try {
    parsedUri = Uri.parse(originalURL);
    if (parsedUri.scheme == '') {
      finalUrl = parsedUri
          .replace(scheme: 'http', path: r'//' + parsedUri.path)
          .toString();
      //the following line to to work around a bug in Darts URI library
      finalUrl = finalUrl.replaceFirst(r'http:////', r'http://');
    }
  } catch (e) {
    //invalid URLs to be passed back unmodified
  }
  finalUrl = ifNull(finalUrl, originalURL);
  log.fine('Function : setUriSchemeToHttp, Return : $finalUrl');
  return finalUrl;
}