Debug Logging
=============

OkHttp has internal APIs to enable debug logging. It uses the `java.util.logging` API which can be
tricky to configure. As a shortcut, you can paste [OkHttpDebugLogging.kt]. Then enable debug logging
for whichever features you need:

```
OkHttpDebugLogging.enableHttp2()
OkHttpDebugLogging.enableTaskRunner()
```

### Activating on Android

```
$ adb shell setprop log.tag.okhttp.Http2 DEBUG

  val sslDebug: Boolean by option(help = "Output SSL Debug").flag()

  val url: String? by argument(name = "url", help = "Remote resource URL")

  var client: Call.Factory? = null

  override fun run() {
    LoggingUtil.configureLogging(debug = verbose, showHttp2Frames = showHttp2Frames, sslDebug = sslDebug)

    commonRun()
  }

 *  Fix: Don't fail on a redirect when a client has configured a 'trust everything' trust manager.
    Typically this would cause certain redirects to fail in debug and development configurations.


## Version 4.4.0

_2020-02-17_

 *  New: Support `canceled()` as an event that can be observed by `EventListener`. This should be

  companion object {
    private val activeLoggers = mutableListOf<Logger>()

    fun configureLogging(
      debug: Boolean,
      showHttp2Frames: Boolean,
      sslDebug: Boolean,
    ) {
      if (debug || showHttp2Frames || sslDebug) {
        if (sslDebug) {
          System.setProperty("javax.net.debug", "")
        }
        LogManager.getLogManager().reset()
        val handler =
          object : ConsoleHandler() {

      init {
        val platformSystemProperty = getPlatformSystemProperty()

        if (platformSystemProperty == JDK9_PROPERTY) {
          if (System.getProperty("javax.net.debug") == null) {
            System.setProperty("javax.net.debug", "")
          }
        } else if (platformSystemProperty == CONSCRYPT_PROPERTY) {
          if (Security.getProviders()[0].name != "Conscrypt") {
            if (!Conscrypt.isAvailable()) {

  kotlinOptions {
    jvmTarget = JavaVersion.VERSION_11.toString()
  }

  buildTypes {
    release {
      isShrinkResources = true
      isMinifyEnabled = true
      signingConfig = signingConfigs.getByName("debug")
      setProguardFiles(listOf(getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"))
      testProguardFiles("test-proguard-rules.pro")
    }
  }
}

dependencies {

      }
      else -> println(message)
    }
  }

  fun enableJsseDebugLogging(debugHandler: (JsseDebugMessage) -> Unit = this::quietDebug): Closeable {
    System.setProperty("javax.net.debug", "")
    return OkHttpDebugLogging.enable(
      "javax.net.ssl",
      object : Handler() {
        override fun publish(record: LogRecord) {
          val param = record.parameters?.firstOrNull() as? String

Committer's Guides
------------------

 * [Concurrency][concurrency]
 * [Debug Logging][debug_logging]
 * [Releasing][releasing]

 [cla]: https://spreadsheets.google.com/spreadsheet/viewform?formkey=dDViT2xzUHAwRkI3X3k5Z0lQM091OGc6MQ&ndplr=1
 [concurrency]: https://square.github.io/okhttp/concurrency/
 [debug_logging]: https://square.github.io/okhttp/debug_logging/
 [releasing]: https://square.github.io/okhttp/releasing/

Committer's Guides
------------------

 * [Concurrency][concurrency]
 * [Debug Logging][debug_logging]
 * [Releasing][releasing]

 [cla]: https://spreadsheets.google.com/spreadsheet/viewform?formkey=dDViT2xzUHAwRkI3X3k5Z0lQM091OGc6MQ&ndplr=1
 [concurrency]: https://square.github.io/okhttp/concurrency/
 [debug_logging]: https://square.github.io/okhttp/debug_logging/
 [releasing]: https://square.github.io/okhttp/releasing/

    val randomRegex = "\"random\"\\s+:\\s+\"([^\"]+)\"".toRegex()

    fun register() {
      // Enable JUL logging for SSL events, must be activated early or via -D option.
      System.setProperty("javax.net.debug", "")
      logger =
        Logger.getLogger("javax.net.ssl")
          .apply {
            level = Level.FINEST
            useParentHandlers = false
          }
    }
  }
}