/**
   * Returns true if this route tunnels HTTPS or HTTP/2 through an HTTP proxy.
   * See [RFC 2817, Section 5.2][rfc_2817].
   *
   * [rfc_2817]: http://www.ietf.org/rfc/rfc2817.txt
   */
  fun requiresTunnel(): Boolean {
    if (proxy.type() != Proxy.Type.HTTP) return false
    return (address.sslSocketFactory != null) ||
      (Protocol.H2_PRIOR_KNOWLEDGE in address.protocols)
  }

     * This type is syntactically identical to "multipart/mixed", but the semantics are different.
     * In particular, in a digest, the default `Content-Type` value for a body part is changed from
     * "text/plain" to "message/rfc822".
     */
    @JvmField
    val DIGEST = "multipart/digest".toMediaType()

    /**
     * This type is syntactically identical to "multipart/mixed", but the semantics are different.

import okhttp3.internal.canParseAsIpAddress
import okhttp3.internal.toCanonicalHost
import okio.utf8Size

/**
 * A HostnameVerifier consistent with [RFC 2818][rfc_2818].
 *
 * [rfc_2818]: http://www.ietf.org/rfc/rfc2818.txt
 */
@Suppress("NAME_SHADOWING")
object OkHostnameVerifier : HostnameVerifier {
  private const val ALT_DNS_NAME = 2
  private const val ALT_IPA_NAME = 7

  override fun verify(
    host: String,

     * certificate, but that practice was deprecated by [RFC 2818][rfc_2818] and replaced with
     * [addSubjectAlternativeName]. If unset a random string will be used.
     *
     * [rfc_2818]: https://tools.ietf.org/html/rfc2818
     */
    fun commonName(cn: String) =
      apply {
        this.commonName = cn
      }

    /** Sets the certificate's organizational unit (OU). If unset this field will be omitted. */