<?php

final class PhabricatorDatasourceURIEngineExtension
  extends PhabricatorDatasourceEngineExtension {

  public function newQuickSearchDatasources() {
    return array();
  }

  public function newJumpURI($query) {
    // If you search for a URI on the local install, just redirect to that
    // URI as though you had pasted it into the URI bar.
    // Skip things that are really not full URLs, like "asdasd".
    // Note that the backend of "isSelfURI" is faster with a PhutilURI.
    $uri = new PhutilURI($query);
    if ($uri->getDomain() === '' || !PhabricatorEnv::isSelfURI($uri)) {
      return null;
    }

    // Strip off the absolute part of the URI. If we don't, the URI redirect
    // validator will get upset that we're performing an unmarked external
    // redirect.

    // The correct host and protocol may also differ from the host and
    // protocol used in the search: for example, if you search for "http://"
    // we want to redirect to "https://" if an install is HTTPS, and
    // the "isSelfURI()" check includes alternate domains in addition to the
    // canonical domain.
    $uri = $uri
      ->setDomain(null)
      ->setProtocol(null)
      ->setPort(null);

    $uri = phutil_string_cast($uri);

    // See T13412. If the URI was in the form "http://dev.example.com" with
    // no trailing slash, there may be no path. Redirecting to the empty
    // string is considered an error by safety checks during redirection,
    // so treat this like the user entered the URI with a trailing slash.
    if (!strlen($uri)) {
      $uri = '/';
    }

    return $uri;
  }
}