okhttp3.internal.platform.android.DeferredSocketAdapter.kt Maven / Gradle / Ivy
/*
* Copyright (C) 2019 Square, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package okhttp3.internal.platform.android
import javax.net.ssl.SSLSocket
import okhttp3.Protocol
/**
* Deferred implementation of SocketAdapter that works by observing the socket
* and initializing on first use.
*
* We use this because eager classpath checks cause confusion and excessive logging in Android,
* and we can't rely on classnames after proguard, so are probably best served by falling through
* to a situation of trying our least likely noisiest options.
*/
class DeferredSocketAdapter(private val socketAdapterFactory: Factory) : SocketAdapter {
private var delegate: SocketAdapter? = null
override fun isSupported(): Boolean {
return true
}
override fun matchesSocket(sslSocket: SSLSocket): Boolean =
socketAdapterFactory.matchesSocket(sslSocket)
override fun configureTlsExtensions(
sslSocket: SSLSocket,
hostname: String?,
protocols: List
) {
getDelegate(sslSocket)?.configureTlsExtensions(sslSocket, hostname, protocols)
}
override fun getSelectedProtocol(sslSocket: SSLSocket): String? {
return getDelegate(sslSocket)?.getSelectedProtocol(sslSocket)
}
@Synchronized private fun getDelegate(sslSocket: SSLSocket): SocketAdapter? {
if (this.delegate == null && socketAdapterFactory.matchesSocket(sslSocket)) {
this.delegate = socketAdapterFactory.create(sslSocket)
}
return delegate
}
interface Factory {
fun matchesSocket(sslSocket: SSLSocket): Boolean
fun create(sslSocket: SSLSocket): SocketAdapter
}
}