*/
  HTTP_1_0("http/1.0"),

  /**
   * A plaintext framing that includes persistent connections.
   *
   * This version of OkHttp implements [RFC 7230][rfc_7230], and tracks revisions to that spec.
   *
   * [rfc_7230]: https://tools.ietf.org/html/rfc7230
   */
  HTTP_1_1("http/1.1"),

  /**
   * Chromium's binary-framed protocol that includes header compression, multiplexing multiple

/** `100 Continue` (HTTP/1.1 - RFC 7231)  */
const val HTTP_CONTINUE = 100

/** `102 Processing` (WebDAV - RFC 2518)  */
const val HTTP_PROCESSING = 102

/** `103 Early Hints (Early Hints - RFC 8297)` */
const val HTTP_EARLY_HINTS = 103

/** `307 Temporary Redirect` (HTTP/1.1 - RFC 7231)  */
const val HTTP_TEMP_REDIRECT = 307

/** `308 Permanent Redirect` (HTTP/1.1 - RFC 7538)  */
const val HTTP_PERM_REDIRECT = 308

/**
 * An [RFC 3492] punycode decoder for converting ASCII to Unicode domain name labels. This is
 * intended for use in Internationalized Domain Names (IDNs).
 *
 * This class contains a Kotlin implementation of the pseudocode specified by RFC 3492. It includes
 * direct translation of the pseudocode presented there.
 *
 * Partner this class with [UTS #46] to implement IDNA2008 [RFC 5890] like most browsers do.
 *

        val delta = expires.time - servedMillis
        return if (delta > 0L) delta else 0L
      }

      if (lastModified != null && cacheResponse.request.url.query == null) {
        // As recommended by the HTTP RFC and implemented in Firefox, the max age of a document
        // should be defaulted to 10% of the document's age at the time it was served. Default
        // expiration dates aren't used for URIs containing a query.

import javax.net.ssl.SSLSession
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

 *
 * <ul>
 *   <li><a href="http://www.ietf.org/rfc/rfc2109.txt">RFC 2109</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2183.txt">RFC 2183</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2616.txt">RFC 2616</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc2965.txt">RFC 2965</a>
 *   <li><a href="http://www.ietf.org/rfc/rfc5988.txt">RFC 5988</a>
 * </ul>
 *
 * @author Kurt Alfred Kluever
 * @since 11.0
 */

 [okio_3_6_0]: https://square.github.io/okio/changelog/#version-360
 [public_suffix]: https://publicsuffix.org/
 [rfc_2045]: https://tools.ietf.org/html/rfc2045
 [rfc_7231_647]: https://tools.ietf.org/html/rfc7231#section-6.4.7
 [rfc_7692]: https://tools.ietf.org/html/rfc7692
 [semver]: https://semver.org/

import okio.buffer
import okio.sink
import okio.source
import okio.use

/**
 * A limited implementation of SOCKS Protocol Version 5, intended to be similar to MockWebServer.
 * See [RFC 1928](https://www.ietf.org/rfc/rfc1928.txt).
 */
class SocksProxy {
  private val executor = Executors.newCachedThreadPool(threadFactory("SocksProxy"))
  private var serverSocket: ServerSocket? = null

     * concurrently, returning once any connection connects successfully.
     *
     * This implements Happy Eyeballs ([RFC 6555][rfc_6555]), balancing connect latency vs.
     * wasted resources.
     *
     * Defaults to enabled, call with [fastFallback] = false to revert to 4.x behaviour.
     *
     * [rfc_6555]: https://datatracker.ietf.org/doc/html/rfc6555
     */
    fun fastFallback(fastFallback: Boolean) =
      apply {

 *  Upgrade: [Okio 3.7.0][okio_3_7_0].


## Version 5.0.0-alpha.11

_2022-12-24_

 *  New: Enable fast fallback by default. It's our implementation of Happy Eyeballs,
    [RFC 8305][rfc_8305]. Disable with `OkHttpClient.Builder.fastFallback(false)`.
 *  Fix: Don't log response bodies for server-sent events.
 *  Fix: Skip early hints (status code 103) responses.