Function getCanonicalUrl

plugins/cachekey/cachekey.cc:191–234

}

static String
getCanonicalUrl(TSMBuffer buf, TSMLoc url, bool canonicalPrefix, bool provideDefaultKey)
{
  String canonicalUrl;

  String      scheme;
  int         schemeLen;
  const char *schemePtr = TSUrlSchemeGet(buf, url, &schemeLen);
  if (nullptr != schemePtr && 0 != schemeLen) {
    scheme.assign(schemePtr, schemeLen);
  } else {
    CacheKeyError("failed to get scheme");
    return canonicalUrl;
  }

  String      host;
  int         hostLen;
  const char *hostPtr = TSUrlHostGet(buf, url, &hostLen);
  if (nullptr != hostPtr && 0 != hostLen) {
    host.assign(hostPtr, hostLen);
  } else {
    CacheKeyError("failed to get host");
    return canonicalUrl;
  }

  String port;
  int    portInt = TSUrlPortGet(buf, url);
  ::append(port, portInt);

  if (canonicalPrefix) {
    /* return the same for both regex input or default key, results in 'scheme://host:port' */
    canonicalUrl.assign(scheme).append("://").append(host).append(":").append(port);
  } else {
    if (provideDefaultKey) {
      /* return the key default - results in '/host/port' */
      canonicalUrl.assign(1, '/').append(host).append("/").append(port);
    } else {
      /* return regex input string - results in 'host:port' (use-case kept for compatibility reasons) */
      canonicalUrl.assign(host).append(":").append(port);
    }
  }

  return canonicalUrl;
}

/**
 * @brief Constructor setting up the cache key prefix, initializing request info.