@(maybeSource: Option[String])
@maybeSource.map { source =>
  @if(source.startsWith("http")) {
    @defining(source.substring(source.indexOf(":") + 3)) { withoutProtocol =>
      <a href="@source" target="_blank">@if(withoutProtocol.indexOf("/") > -1) {
        @withoutProtocol.substring(0, withoutProtocol.indexOf("/"))
      } else {
        @withoutProtocol
      }</a>
    }
  } else {
    @source
  }
}