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/*
* Copyright (C) 2012 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
import java.net.Proxy
import java.net.ProxySelector
import java.net.Socket
import java.time.Duration
import java.util.Collections
import java.util.Random
import java.util.concurrent.ExecutorService
import java.util.concurrent.TimeUnit
import java.util.concurrent.TimeUnit.MILLISECONDS
import javax.net.SocketFactory
import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLSocketFactory
import javax.net.ssl.X509TrustManager
import okhttp3.Protocol.HTTP_1_1
import okhttp3.Protocol.HTTP_2
import okhttp3.internal.asFactory
import okhttp3.internal.checkDuration
import okhttp3.internal.concurrent.TaskRunner
import okhttp3.internal.connection.RealCall
import okhttp3.internal.connection.RouteDatabase
import okhttp3.internal.immutableListOf
import okhttp3.internal.platform.Platform
import okhttp3.internal.proxy.NullProxySelector
import okhttp3.internal.tls.CertificateChainCleaner
import okhttp3.internal.tls.OkHostnameVerifier
import okhttp3.internal.toImmutableList
import okhttp3.internal.ws.RealWebSocket
import okio.Sink
import okio.Source
import org.codehaus.mojo.animal_sniffer.IgnoreJRERequirement
/**
* Factory for [calls][Call], which can be used to send HTTP requests and read their responses.
*
* ## OkHttpClients Should Be Shared
*
* OkHttp performs best when you create a single `OkHttpClient` instance and reuse it for all of
* your HTTP calls. This is because each client holds its own connection pool and thread pools.
* Reusing connections and threads reduces latency and saves memory. Conversely, creating a client
* for each request wastes resources on idle pools.
*
* Use `new OkHttpClient()` to create a shared instance with the default settings:
*
* ```java
* // The singleton HTTP client.
* public final OkHttpClient client = new OkHttpClient();
* ```
*
* Or use `new OkHttpClient.Builder()` to create a shared instance with custom settings:
*
* ```java
* // The singleton HTTP client.
* public final OkHttpClient client = new OkHttpClient.Builder()
* .addInterceptor(new HttpLoggingInterceptor())
* .cache(new Cache(cacheDir, cacheSize))
* .build();
* ```
*
* ## Customize Your Client With newBuilder()
*
* You can customize a shared OkHttpClient instance with [newBuilder]. This builds a client that
* shares the same connection pool, thread pools, and configuration. Use the builder methods to
* add configuration to the derived client for a specific purpose.
*
* This example shows the single instance with default configurations.
*
* ```java
* public final OkHttpClient client = new OkHttpClient.Builder()
* .readTimeout(1000, TimeUnit.MILLISECONDS)
* .writeTimeout(1000, TimeUnit.MILLISECONDS)
* .build();
* ```
*
* This example shows a call with a short 500 millisecond read timeout and a 1000 millisecond
* write timeout. Original configuration is kept, but can be overriden.
*
* ```java
* OkHttpClient eagerClient = client.newBuilder()
* .readTimeout(500, TimeUnit.MILLISECONDS)
* .build();
* Response response = eagerClient.newCall(request).execute();
* ```
*
* ## Shutdown Isn't Necessary
*
* The threads and connections that are held will be released automatically if they remain idle. But
* if you are writing a application that needs to aggressively release unused resources you may do
* so.
*
* Shutdown the dispatcher's executor service with [shutdown()][ExecutorService.shutdown]. This will
* also cause future calls to the client to be rejected.
*
* ```java
* client.dispatcher().executorService().shutdown();
* ```
*
* Clear the connection pool with [evictAll()][ConnectionPool.evictAll]. Note that the connection
* pool's daemon thread may not exit immediately.
*
* ```java
* client.connectionPool().evictAll();
* ```
*
* If your client has a cache, call [close()][Cache.close]. Note that it is an error to create calls
* against a cache that is closed, and doing so will cause the call to crash.
*
* ```java
* client.cache().close();
* ```
*
* OkHttp also uses daemon threads for HTTP/2 connections. These will exit automatically if they
* remain idle.
*/
open class OkHttpClient internal constructor(
builder: Builder
) : Cloneable, Call.Factory, WebSocket.Factory {
@get:JvmName("dispatcher") val dispatcher: Dispatcher = builder.dispatcher
@get:JvmName("connectionPool") val connectionPool: ConnectionPool = builder.connectionPool
/**
* Returns an immutable list of interceptors that observe the full span of each call: from before
* the connection is established (if any) until after the response source is selected (either the
* origin server, cache, or both).
*/
@get:JvmName("interceptors") val interceptors: List =
builder.interceptors.toImmutableList()
/**
* Returns an immutable list of interceptors that observe a single network request and response.
* These interceptors must call [Interceptor.Chain.proceed] exactly once: it is an error for
* a network interceptor to short-circuit or repeat a network request.
*/
@get:JvmName("networkInterceptors") val networkInterceptors: List =
builder.networkInterceptors.toImmutableList()
@get:JvmName("eventListenerFactory") val eventListenerFactory: EventListener.Factory =
builder.eventListenerFactory
@get:JvmName("retryOnConnectionFailure") val retryOnConnectionFailure: Boolean =
builder.retryOnConnectionFailure
@get:JvmName("fastFallback") val fastFallback: Boolean = builder.fastFallback
@get:JvmName("authenticator") val authenticator: Authenticator = builder.authenticator
@get:JvmName("followRedirects") val followRedirects: Boolean = builder.followRedirects
@get:JvmName("followSslRedirects") val followSslRedirects: Boolean = builder.followSslRedirects
@get:JvmName("cookieJar") val cookieJar: CookieJar = builder.cookieJar
@get:JvmName("cache") val cache: Cache? = builder.cache
@get:JvmName("dns") val dns: Dns = builder.dns
@get:JvmName("proxy") val proxy: Proxy? = builder.proxy
@get:JvmName("proxySelector") val proxySelector: ProxySelector =
when {
// Defer calls to ProxySelector.getDefault() because it can throw a SecurityException.
builder.proxy != null -> NullProxySelector
else -> builder.proxySelector ?: ProxySelector.getDefault() ?: NullProxySelector
}
@get:JvmName("proxyAuthenticator") val proxyAuthenticator: Authenticator =
builder.proxyAuthenticator
@get:JvmName("socketFactory") val socketFactory: SocketFactory = builder.socketFactory
private val sslSocketFactoryOrNull: SSLSocketFactory?
@get:JvmName("sslSocketFactory") val sslSocketFactory: SSLSocketFactory
get() = sslSocketFactoryOrNull ?: throw IllegalStateException("CLEARTEXT-only client")
@get:JvmName("x509TrustManager") val x509TrustManager: X509TrustManager?
@get:JvmName("connectionSpecs") val connectionSpecs: List =
builder.connectionSpecs
@get:JvmName("protocols") val protocols: List = builder.protocols
@get:JvmName("hostnameVerifier") val hostnameVerifier: HostnameVerifier = builder.hostnameVerifier
@get:JvmName("certificatePinner") val certificatePinner: CertificatePinner
@get:JvmName("certificateChainCleaner") val certificateChainCleaner: CertificateChainCleaner?
/**
* Default call timeout (in milliseconds). By default there is no timeout for complete calls, but
* there is for the connect, write, and read actions within a call.
*/
@get:JvmName("callTimeoutMillis") val callTimeoutMillis: Int = builder.callTimeout
/** Default connect timeout (in milliseconds). The default is 10 seconds. */
@get:JvmName("connectTimeoutMillis") val connectTimeoutMillis: Int = builder.connectTimeout
/** Default read timeout (in milliseconds). The default is 10 seconds. */
@get:JvmName("readTimeoutMillis") val readTimeoutMillis: Int = builder.readTimeout
/** Default write timeout (in milliseconds). The default is 10 seconds. */
@get:JvmName("writeTimeoutMillis") val writeTimeoutMillis: Int = builder.writeTimeout
/** Web socket and HTTP/2 ping interval (in milliseconds). By default pings are not sent. */
@get:JvmName("pingIntervalMillis") val pingIntervalMillis: Int = builder.pingInterval
/**
* Minimum outbound web socket message size (in bytes) that will be compressed.
* The default is 1024 bytes.
*/
@get:JvmName("minWebSocketMessageToCompress")
val minWebSocketMessageToCompress: Long = builder.minWebSocketMessageToCompress
internal val routeDatabase: RouteDatabase = builder.routeDatabase ?: RouteDatabase()
internal val taskRunner: TaskRunner = builder.taskRunner ?: TaskRunner.INSTANCE
constructor() : this(Builder())
init {
if (connectionSpecs.none { it.isTls }) {
this.sslSocketFactoryOrNull = null
this.certificateChainCleaner = null
this.x509TrustManager = null
this.certificatePinner = CertificatePinner.DEFAULT
} else if (builder.sslSocketFactoryOrNull != null) {
this.sslSocketFactoryOrNull = builder.sslSocketFactoryOrNull
this.certificateChainCleaner = builder.certificateChainCleaner!!
this.x509TrustManager = builder.x509TrustManagerOrNull!!
this.certificatePinner = builder.certificatePinner
.withCertificateChainCleaner(certificateChainCleaner!!)
} else {
this.x509TrustManager = Platform.get().platformTrustManager()
this.sslSocketFactoryOrNull = Platform.get().newSslSocketFactory(x509TrustManager!!)
this.certificateChainCleaner = CertificateChainCleaner.get(x509TrustManager!!)
this.certificatePinner = builder.certificatePinner
.withCertificateChainCleaner(certificateChainCleaner!!)
}
verifyClientState()
}
private fun verifyClientState() {
check(null !in (interceptors as List)) {
"Null interceptor: $interceptors"
}
check(null !in (networkInterceptors as List)) {
"Null network interceptor: $networkInterceptors"
}
if (connectionSpecs.none { it.isTls }) {
check(sslSocketFactoryOrNull == null)
check(certificateChainCleaner == null)
check(x509TrustManager == null)
check(certificatePinner == CertificatePinner.DEFAULT)
} else {
checkNotNull(sslSocketFactoryOrNull) { "sslSocketFactory == null" }
checkNotNull(certificateChainCleaner) { "certificateChainCleaner == null" }
checkNotNull(x509TrustManager) { "x509TrustManager == null" }
}
}
/** Prepares the [request] to be executed at some point in the future. */
override fun newCall(request: Request): Call = RealCall(this, request, forWebSocket = false)
/** Uses [request] to connect a new web socket. */
override fun newWebSocket(request: Request, listener: WebSocketListener): WebSocket {
val webSocket = RealWebSocket(
taskRunner = taskRunner,
originalRequest = request,
listener = listener,
random = Random(),
pingIntervalMillis = pingIntervalMillis.toLong(),
extensions = null, // Always null for clients.
minimumDeflateSize = minWebSocketMessageToCompress
)
webSocket.connect(this)
return webSocket
}
open fun newBuilder(): Builder = Builder(this)
@JvmName("-deprecated_dispatcher")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "dispatcher"),
level = DeprecationLevel.ERROR
)
fun dispatcher(): Dispatcher = dispatcher
@JvmName("-deprecated_connectionPool")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "connectionPool"),
level = DeprecationLevel.ERROR
)
fun connectionPool(): ConnectionPool = connectionPool
@JvmName("-deprecated_interceptors")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "interceptors"),
level = DeprecationLevel.ERROR
)
fun interceptors(): List = interceptors
@JvmName("-deprecated_networkInterceptors")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "networkInterceptors"),
level = DeprecationLevel.ERROR
)
fun networkInterceptors(): List = networkInterceptors
@JvmName("-deprecated_eventListenerFactory")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "eventListenerFactory"),
level = DeprecationLevel.ERROR
)
fun eventListenerFactory(): EventListener.Factory = eventListenerFactory
@JvmName("-deprecated_retryOnConnectionFailure")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "retryOnConnectionFailure"),
level = DeprecationLevel.ERROR
)
fun retryOnConnectionFailure(): Boolean = retryOnConnectionFailure
@JvmName("-deprecated_authenticator")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "authenticator"),
level = DeprecationLevel.ERROR
)
fun authenticator(): Authenticator = authenticator
@JvmName("-deprecated_followRedirects")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "followRedirects"),
level = DeprecationLevel.ERROR
)
fun followRedirects(): Boolean = followRedirects
@JvmName("-deprecated_followSslRedirects")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "followSslRedirects"),
level = DeprecationLevel.ERROR
)
fun followSslRedirects(): Boolean = followSslRedirects
@JvmName("-deprecated_cookieJar")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "cookieJar"),
level = DeprecationLevel.ERROR
)
fun cookieJar(): CookieJar = cookieJar
@JvmName("-deprecated_cache")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "cache"),
level = DeprecationLevel.ERROR
)
fun cache(): Cache? = cache
@JvmName("-deprecated_dns")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "dns"),
level = DeprecationLevel.ERROR
)
fun dns(): Dns = dns
@JvmName("-deprecated_proxy")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "proxy"),
level = DeprecationLevel.ERROR
)
fun proxy(): Proxy? = proxy
@JvmName("-deprecated_proxySelector")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "proxySelector"),
level = DeprecationLevel.ERROR
)
fun proxySelector(): ProxySelector = proxySelector
@JvmName("-deprecated_proxyAuthenticator")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "proxyAuthenticator"),
level = DeprecationLevel.ERROR
)
fun proxyAuthenticator(): Authenticator = proxyAuthenticator
@JvmName("-deprecated_socketFactory")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "socketFactory"),
level = DeprecationLevel.ERROR
)
fun socketFactory(): SocketFactory = socketFactory
@JvmName("-deprecated_sslSocketFactory")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "sslSocketFactory"),
level = DeprecationLevel.ERROR
)
fun sslSocketFactory(): SSLSocketFactory = sslSocketFactory
@JvmName("-deprecated_connectionSpecs")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "connectionSpecs"),
level = DeprecationLevel.ERROR
)
fun connectionSpecs(): List = connectionSpecs
@JvmName("-deprecated_protocols")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "protocols"),
level = DeprecationLevel.ERROR
)
fun protocols(): List = protocols
@JvmName("-deprecated_hostnameVerifier")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "hostnameVerifier"),
level = DeprecationLevel.ERROR
)
fun hostnameVerifier(): HostnameVerifier = hostnameVerifier
@JvmName("-deprecated_certificatePinner")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "certificatePinner"),
level = DeprecationLevel.ERROR
)
fun certificatePinner(): CertificatePinner = certificatePinner
@JvmName("-deprecated_callTimeoutMillis")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "callTimeoutMillis"),
level = DeprecationLevel.ERROR
)
fun callTimeoutMillis(): Int = callTimeoutMillis
@JvmName("-deprecated_connectTimeoutMillis")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "connectTimeoutMillis"),
level = DeprecationLevel.ERROR
)
fun connectTimeoutMillis(): Int = connectTimeoutMillis
@JvmName("-deprecated_readTimeoutMillis")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "readTimeoutMillis"),
level = DeprecationLevel.ERROR
)
fun readTimeoutMillis(): Int = readTimeoutMillis
@JvmName("-deprecated_writeTimeoutMillis")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "writeTimeoutMillis"),
level = DeprecationLevel.ERROR
)
fun writeTimeoutMillis(): Int = writeTimeoutMillis
@JvmName("-deprecated_pingIntervalMillis")
@Deprecated(
message = "moved to val",
replaceWith = ReplaceWith(expression = "pingIntervalMillis"),
level = DeprecationLevel.ERROR
)
fun pingIntervalMillis(): Int = pingIntervalMillis
class Builder() {
internal var dispatcher: Dispatcher = Dispatcher()
internal var connectionPool: ConnectionPool = ConnectionPool()
internal val interceptors: MutableList = mutableListOf()
internal val networkInterceptors: MutableList = mutableListOf()
internal var eventListenerFactory: EventListener.Factory = EventListener.NONE.asFactory()
internal var retryOnConnectionFailure = true
internal var fastFallback = false
internal var authenticator: Authenticator = Authenticator.NONE
internal var followRedirects = true
internal var followSslRedirects = true
internal var cookieJar: CookieJar = CookieJar.NO_COOKIES
internal var cache: Cache? = null
internal var dns: Dns = Dns.SYSTEM
internal var proxy: Proxy? = null
internal var proxySelector: ProxySelector? = null
internal var proxyAuthenticator: Authenticator = Authenticator.NONE
internal var socketFactory: SocketFactory = SocketFactory.getDefault()
internal var sslSocketFactoryOrNull: SSLSocketFactory? = null
internal var x509TrustManagerOrNull: X509TrustManager? = null
internal var connectionSpecs: List = DEFAULT_CONNECTION_SPECS
internal var protocols: List = DEFAULT_PROTOCOLS
internal var hostnameVerifier: HostnameVerifier = OkHostnameVerifier
internal var certificatePinner: CertificatePinner = CertificatePinner.DEFAULT
internal var certificateChainCleaner: CertificateChainCleaner? = null
internal var callTimeout = 0
internal var connectTimeout = 10_000
internal var readTimeout = 10_000
internal var writeTimeout = 10_000
internal var pingInterval = 0
internal var minWebSocketMessageToCompress = RealWebSocket.DEFAULT_MINIMUM_DEFLATE_SIZE
internal var routeDatabase: RouteDatabase? = null
internal var taskRunner: TaskRunner? = null
internal constructor(okHttpClient: OkHttpClient) : this() {
this.dispatcher = okHttpClient.dispatcher
this.connectionPool = okHttpClient.connectionPool
this.interceptors += okHttpClient.interceptors
this.networkInterceptors += okHttpClient.networkInterceptors
this.eventListenerFactory = okHttpClient.eventListenerFactory
this.retryOnConnectionFailure = okHttpClient.retryOnConnectionFailure
this.fastFallback = okHttpClient.fastFallback
this.authenticator = okHttpClient.authenticator
this.followRedirects = okHttpClient.followRedirects
this.followSslRedirects = okHttpClient.followSslRedirects
this.cookieJar = okHttpClient.cookieJar
this.cache = okHttpClient.cache
this.dns = okHttpClient.dns
this.proxy = okHttpClient.proxy
this.proxySelector = okHttpClient.proxySelector
this.proxyAuthenticator = okHttpClient.proxyAuthenticator
this.socketFactory = okHttpClient.socketFactory
this.sslSocketFactoryOrNull = okHttpClient.sslSocketFactoryOrNull
this.x509TrustManagerOrNull = okHttpClient.x509TrustManager
this.connectionSpecs = okHttpClient.connectionSpecs
this.protocols = okHttpClient.protocols
this.hostnameVerifier = okHttpClient.hostnameVerifier
this.certificatePinner = okHttpClient.certificatePinner
this.certificateChainCleaner = okHttpClient.certificateChainCleaner
this.callTimeout = okHttpClient.callTimeoutMillis
this.connectTimeout = okHttpClient.connectTimeoutMillis
this.readTimeout = okHttpClient.readTimeoutMillis
this.writeTimeout = okHttpClient.writeTimeoutMillis
this.pingInterval = okHttpClient.pingIntervalMillis
this.minWebSocketMessageToCompress = okHttpClient.minWebSocketMessageToCompress
this.routeDatabase = okHttpClient.routeDatabase
this.taskRunner = okHttpClient.taskRunner
}
/**
* Sets the dispatcher used to set policy and execute asynchronous requests. Must not be null.
*/
fun dispatcher(dispatcher: Dispatcher) = apply {
this.dispatcher = dispatcher
}
/**
* Sets the connection pool used to recycle HTTP and HTTPS connections.
*
* If unset, a new connection pool will be used.
*/
fun connectionPool(connectionPool: ConnectionPool) = apply {
this.connectionPool = connectionPool
}
/**
* Returns a modifiable list of interceptors that observe the full span of each call: from
* before the connection is established (if any) until after the response source is selected
* (either the origin server, cache, or both).
*/
fun interceptors(): MutableList = interceptors
fun addInterceptor(interceptor: Interceptor) = apply {
interceptors += interceptor
}
@JvmName("-addInterceptor") // Prefix with '-' to prevent ambiguous overloads from Java.
inline fun addInterceptor(crossinline block: (chain: Interceptor.Chain) -> Response) =
addInterceptor(Interceptor { chain -> block(chain) })
/**
* Returns a modifiable list of interceptors that observe a single network request and response.
* These interceptors must call [Interceptor.Chain.proceed] exactly once: it is an error for a
* network interceptor to short-circuit or repeat a network request.
*/
fun networkInterceptors(): MutableList = networkInterceptors
fun addNetworkInterceptor(interceptor: Interceptor) = apply {
networkInterceptors += interceptor
}
@JvmName("-addNetworkInterceptor") // Prefix with '-' to prevent ambiguous overloads from Java.
inline fun addNetworkInterceptor(crossinline block: (chain: Interceptor.Chain) -> Response) =
addNetworkInterceptor(Interceptor { chain -> block(chain) })
/**
* Configure a single client scoped listener that will receive all analytic events for this
* client.
*
* @see EventListener for semantics and restrictions on listener implementations.
*/
fun eventListener(eventListener: EventListener) = apply {
this.eventListenerFactory = eventListener.asFactory()
}
/**
* Configure a factory to provide per-call scoped listeners that will receive analytic events
* for this client.
*
* @see EventListener for semantics and restrictions on listener implementations.
*/
fun eventListenerFactory(eventListenerFactory: EventListener.Factory) = apply {
this.eventListenerFactory = eventListenerFactory
}
/**
* Configure this client to retry or not when a connectivity problem is encountered. By default,
* this client silently recovers from the following problems:
*
* * **Unreachable IP addresses.** If the URL's host has multiple IP addresses,
* failure to reach any individual IP address doesn't fail the overall request. This can
* increase availability of multi-homed services.
*
* * **Stale pooled connections.** The [ConnectionPool] reuses sockets
* to decrease request latency, but these connections will occasionally time out.
*
* * **Unreachable proxy servers.** A [ProxySelector] can be used to
* attempt multiple proxy servers in sequence, eventually falling back to a direct
* connection.
*
* Set this to false to avoid retrying requests when doing so is destructive. In this case the
* calling application should do its own recovery of connectivity failures.
*/
fun retryOnConnectionFailure(retryOnConnectionFailure: Boolean) = apply {
this.retryOnConnectionFailure = retryOnConnectionFailure
}
/**
* Configure this client to perform fast fallbacks by attempting multiple connections
* concurrently, returning once any connection connects successfully.
*
* This implements Happy Eyeballs ([RFC 6555][rfc_6555]), balancing connect latency vs.
* wasted resources.
*
* [rfc_6555]: https://datatracker.ietf.org/doc/html/rfc6555
*/
fun fastFallback(fastFallback: Boolean) = apply {
this.fastFallback = fastFallback
}
/**
* Sets the authenticator used to respond to challenges from origin servers. Use
* [proxyAuthenticator] to set the authenticator for proxy servers.
*
* If unset, the [no authentication will be attempted][Authenticator.NONE].
*/
fun authenticator(authenticator: Authenticator) = apply {
this.authenticator = authenticator
}
/** Configure this client to follow redirects. If unset, redirects will be followed. */
fun followRedirects(followRedirects: Boolean) = apply {
this.followRedirects = followRedirects
}
/**
* Configure this client to allow protocol redirects from HTTPS to HTTP and from HTTP to HTTPS.
* Redirects are still first restricted by [followRedirects]. Defaults to true.
*
* @param followProtocolRedirects whether to follow redirects between HTTPS and HTTP.
*/
fun followSslRedirects(followProtocolRedirects: Boolean) = apply {
this.followSslRedirects = followProtocolRedirects
}
/**
* Sets the handler that can accept cookies from incoming HTTP responses and provides cookies to
* outgoing HTTP requests.
*
* If unset, [no cookies][CookieJar.NO_COOKIES] will be accepted nor provided.
*/
fun cookieJar(cookieJar: CookieJar) = apply {
this.cookieJar = cookieJar
}
/** Sets the response cache to be used to read and write cached responses. */
fun cache(cache: Cache?) = apply {
this.cache = cache
}
/**
* Sets the DNS service used to lookup IP addresses for hostnames.
*
* If unset, the [system-wide default][Dns.SYSTEM] DNS will be used.
*/
fun dns(dns: Dns) = apply {
if (dns != this.dns) {
this.routeDatabase = null
}
this.dns = dns
}
/**
* Sets the HTTP proxy that will be used by connections created by this client. This takes
* precedence over [proxySelector], which is only honored when this proxy is null (which it is
* by default). To disable proxy use completely, call `proxy(Proxy.NO_PROXY)`.
*/
fun proxy(proxy: Proxy?) = apply {
if (proxy != this.proxy) {
this.routeDatabase = null
}
this.proxy = proxy
}
/**
* Sets the proxy selection policy to be used if no [proxy][proxy] is specified explicitly. The
* proxy selector may return multiple proxies; in that case they will be tried in sequence until
* a successful connection is established.
*
* If unset, the [system-wide default][ProxySelector.getDefault] proxy selector will be used.
*/
fun proxySelector(proxySelector: ProxySelector) = apply {
if (proxySelector != this.proxySelector) {
this.routeDatabase = null
}
this.proxySelector = proxySelector
}
/**
* Sets the authenticator used to respond to challenges from proxy servers. Use [authenticator]
* to set the authenticator for origin servers.
*
* If unset, the [no authentication will be attempted][Authenticator.NONE].
*/
fun proxyAuthenticator(proxyAuthenticator: Authenticator) = apply {
if (proxyAuthenticator != this.proxyAuthenticator) {
this.routeDatabase = null
}
this.proxyAuthenticator = proxyAuthenticator
}
/**
* Sets the socket factory used to create connections. OkHttp only uses the parameterless
* [SocketFactory.createSocket] method to create unconnected sockets. Overriding this method,
* e. g., allows the socket to be bound to a specific local address.
*
* If unset, the [system-wide default][SocketFactory.getDefault] socket factory will be used.
*/
fun socketFactory(socketFactory: SocketFactory) = apply {
require(socketFactory !is SSLSocketFactory) { "socketFactory instanceof SSLSocketFactory" }
if (socketFactory != this.socketFactory) {
this.routeDatabase = null
}
this.socketFactory = socketFactory
}
/**
* Sets the socket factory used to secure HTTPS connections. If unset, the system default will
* be used.
*
* @deprecated [SSLSocketFactory] does not expose its [X509TrustManager], which is a field that
* OkHttp needs to build a clean certificate chain. This method instead must use reflection
* to extract the trust manager. Applications should prefer to call
* `sslSocketFactory(SSLSocketFactory, X509TrustManager)`, which avoids such reflection.
*/
@Deprecated(
message = "Use the sslSocketFactory overload that accepts a X509TrustManager.",
level = DeprecationLevel.ERROR
)
fun sslSocketFactory(sslSocketFactory: SSLSocketFactory) = apply {
if (sslSocketFactory != this.sslSocketFactoryOrNull) {
this.routeDatabase = null
}
this.sslSocketFactoryOrNull = sslSocketFactory
this.x509TrustManagerOrNull =
Platform.get().trustManager(sslSocketFactory) ?: throw IllegalStateException(
"Unable to extract the trust manager on ${Platform.get()}, " +
"sslSocketFactory is ${sslSocketFactory.javaClass}"
)
this.certificateChainCleaner =
Platform.get().buildCertificateChainCleaner(x509TrustManagerOrNull!!)
}
/**
* Sets the socket factory and trust manager used to secure HTTPS connections. If unset, the
* system defaults will be used.
*
* Most applications should not call this method, and instead use the system defaults. Those
* classes include special optimizations that can be lost if the implementations are decorated.
*
* If necessary, you can create and configure the defaults yourself with the following code:
*
* ```java
* TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(
* TrustManagerFactory.getDefaultAlgorithm());
* trustManagerFactory.init((KeyStore) null);
* TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
* if (trustManagers.length != 1 || !(trustManagers[0] instanceof X509TrustManager)) {
* throw new IllegalStateException("Unexpected default trust managers:"
* + Arrays.toString(trustManagers));
* }
* X509TrustManager trustManager = (X509TrustManager) trustManagers[0];
*
* SSLContext sslContext = SSLContext.getInstance("TLS");
* sslContext.init(null, new TrustManager[] { trustManager }, null);
* SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
*
* OkHttpClient client = new OkHttpClient.Builder()
* .sslSocketFactory(sslSocketFactory, trustManager)
* .build();
* ```
*
* ## TrustManagers on Android are Weird!
*
* Trust managers targeting Android must also define a method that has this signature:
*
* ```java
* @SuppressWarnings("unused")
* public List checkServerTrusted(
* X509Certificate[] chain, String authType, String host) throws CertificateException {
* }
* ```
*
* This method works like [X509TrustManager.checkServerTrusted] but it receives the hostname of
* the server as an extra parameter. Regardless of what checks this method performs, OkHttp will
* always check that the server's certificates match its hostname using the [HostnameVerifier].
* See [android.net.http.X509TrustManagerExtensions] for more information.
*/
fun sslSocketFactory(
sslSocketFactory: SSLSocketFactory,
trustManager: X509TrustManager
) = apply {
if (sslSocketFactory != this.sslSocketFactoryOrNull || trustManager != this.x509TrustManagerOrNull) {
this.routeDatabase = null
}
this.sslSocketFactoryOrNull = sslSocketFactory
this.certificateChainCleaner = CertificateChainCleaner.get(trustManager)
this.x509TrustManagerOrNull = trustManager
}
fun connectionSpecs(connectionSpecs: List) = apply {
if (connectionSpecs != this.connectionSpecs) {
this.routeDatabase = null
}
this.connectionSpecs = connectionSpecs.toImmutableList()
}
/**
* Configure the protocols used by this client to communicate with remote servers. By default
* this client will prefer the most efficient transport available, falling back to more
* ubiquitous protocols. Applications should only call this method to avoid specific
* compatibility problems, such as web servers that behave incorrectly when HTTP/2 is enabled.
*
* The following protocols are currently supported:
*
* * [http/1.1][rfc_2616]
* * [h2][rfc_7540]
* * [h2 with prior knowledge(cleartext only)][rfc_7540_34]
*
* **This is an evolving set.** Future releases include support for transitional
* protocols. The http/1.1 transport will never be dropped.
*
* If multiple protocols are specified, [ALPN][alpn] will be used to negotiate a transport.
* Protocol negotiation is only attempted for HTTPS URLs.
*
* [Protocol.HTTP_1_0] is not supported in this set. Requests are initiated with `HTTP/1.1`. If
* the server responds with `HTTP/1.0`, that will be exposed by [Response.protocol].
*
* [alpn]: http://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg
* [rfc_2616]: http://www.w3.org/Protocols/rfc2616/rfc2616.html
* [rfc_7540]: https://tools.ietf.org/html/rfc7540
* [rfc_7540_34]: https://tools.ietf.org/html/rfc7540#section-3.4
*
* @param protocols the protocols to use, in order of preference. If the list contains
* [Protocol.H2_PRIOR_KNOWLEDGE] then that must be the only protocol and HTTPS URLs will not
* be supported. Otherwise the list must contain [Protocol.HTTP_1_1]. The list must
* not contain null or [Protocol.HTTP_1_0].
*/
fun protocols(protocols: List) = apply {
// Create a private copy of the list.
val protocolsCopy = protocols.toMutableList()
// Validate that the list has everything we require and nothing we forbid.
require(Protocol.H2_PRIOR_KNOWLEDGE in protocolsCopy || HTTP_1_1 in protocolsCopy) {
"protocols must contain h2_prior_knowledge or http/1.1: $protocolsCopy"
}
require(Protocol.H2_PRIOR_KNOWLEDGE !in protocolsCopy || protocolsCopy.size <= 1) {
"protocols containing h2_prior_knowledge cannot use other protocols: $protocolsCopy"
}
require(Protocol.HTTP_1_0 !in protocolsCopy) {
"protocols must not contain http/1.0: $protocolsCopy"
}
require(null !in (protocolsCopy as List)) {
"protocols must not contain null"
}
// Remove protocols that we no longer support.
@Suppress("DEPRECATION")
protocolsCopy.remove(Protocol.SPDY_3)
if (protocolsCopy != this.protocols) {
this.routeDatabase = null
}
// Assign as an unmodifiable list. This is effectively immutable.
this.protocols = Collections.unmodifiableList(protocolsCopy)
}
/**
* Sets the verifier used to confirm that response certificates apply to requested hostnames for
* HTTPS connections.
*
* If unset, a default hostname verifier will be used.
*/
fun hostnameVerifier(hostnameVerifier: HostnameVerifier) = apply {
if (hostnameVerifier != this.hostnameVerifier) {
this.routeDatabase = null
}
this.hostnameVerifier = hostnameVerifier
}
/**
* Sets the certificate pinner that constrains which certificates are trusted. By default HTTPS
* connections rely on only the [SSL socket factory][sslSocketFactory] to establish trust.
* Pinning certificates avoids the need to trust certificate authorities.
*/
fun certificatePinner(certificatePinner: CertificatePinner) = apply {
if (certificatePinner != this.certificatePinner) {
this.routeDatabase = null
}
this.certificatePinner = certificatePinner
}
/**
* Sets the default timeout for complete calls. A value of 0 means no timeout, otherwise values
* must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The call timeout spans the entire call: resolving DNS, connecting, writing the request body,
* server processing, and reading the response body. If the call requires redirects or retries
* all must complete within one timeout period.
*
* The default value is 0 which imposes no timeout.
*/
fun callTimeout(timeout: Long, unit: TimeUnit) = apply {
callTimeout = checkDuration("timeout", timeout, unit)
}
/**
* Sets the default timeout for complete calls. A value of 0 means no timeout, otherwise values
* must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The call timeout spans the entire call: resolving DNS, connecting, writing the request body,
* server processing, and reading the response body. If the call requires redirects or retries
* all must complete within one timeout period.
*
* The default value is 0 which imposes no timeout.
*/
@IgnoreJRERequirement
fun callTimeout(duration: Duration) = apply {
callTimeout(duration.toMillis(), MILLISECONDS)
}
/**
* Sets the default connect timeout for new connections. A value of 0 means no timeout,
* otherwise values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The connect timeout is applied when connecting a TCP socket to the target host. The default
* value is 10 seconds.
*/
fun connectTimeout(timeout: Long, unit: TimeUnit) = apply {
connectTimeout = checkDuration("timeout", timeout, unit)
}
/**
* Sets the default connect timeout for new connections. A value of 0 means no timeout,
* otherwise values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The connect timeout is applied when connecting a TCP socket to the target host. The default
* value is 10 seconds.
*/
@IgnoreJRERequirement
fun connectTimeout(duration: Duration) = apply {
connectTimeout(duration.toMillis(), MILLISECONDS)
}
/**
* Sets the default read timeout for new connections. A value of 0 means no timeout, otherwise
* values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The read timeout is applied to both the TCP socket and for individual read IO operations
* including on [Source] of the [Response]. The default value is 10 seconds.
*
* @see Socket.setSoTimeout
* @see Source.timeout
*/
fun readTimeout(timeout: Long, unit: TimeUnit) = apply {
readTimeout = checkDuration("timeout", timeout, unit)
}
/**
* Sets the default read timeout for new connections. A value of 0 means no timeout, otherwise
* values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The read timeout is applied to both the TCP socket and for individual read IO operations
* including on [Source] of the [Response]. The default value is 10 seconds.
*
* @see Socket.setSoTimeout
* @see Source.timeout
*/
@IgnoreJRERequirement
fun readTimeout(duration: Duration) = apply {
readTimeout(duration.toMillis(), MILLISECONDS)
}
/**
* Sets the default write timeout for new connections. A value of 0 means no timeout, otherwise
* values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The write timeout is applied for individual write IO operations. The default value is 10
* seconds.
*
* @see Sink.timeout
*/
fun writeTimeout(timeout: Long, unit: TimeUnit) = apply {
writeTimeout = checkDuration("timeout", timeout, unit)
}
/**
* Sets the default write timeout for new connections. A value of 0 means no timeout, otherwise
* values must be between 1 and [Integer.MAX_VALUE] when converted to milliseconds.
*
* The write timeout is applied for individual write IO operations. The default value is 10
* seconds.
*
* @see Sink.timeout
*/
@IgnoreJRERequirement
fun writeTimeout(duration: Duration) = apply {
writeTimeout(duration.toMillis(), MILLISECONDS)
}
/**
* Sets the interval between HTTP/2 and web socket pings initiated by this client. Use this to
* automatically send ping frames until either the connection fails or it is closed. This keeps
* the connection alive and may detect connectivity failures.
*
* If the server does not respond to each ping with a pong within `interval`, this client will
* assume that connectivity has been lost. When this happens on a web socket the connection is
* canceled and its listener is [notified][WebSocketListener.onFailure]. When it happens on an
* HTTP/2 connection the connection is closed and any calls it is carrying
* [will fail with an IOException][java.io.IOException].
*
* The default value of 0 disables client-initiated pings.
*/
fun pingInterval(interval: Long, unit: TimeUnit) = apply {
pingInterval = checkDuration("interval", interval, unit)
}
/**
* Sets the interval between HTTP/2 and web socket pings initiated by this client. Use this to
* automatically send ping frames until either the connection fails or it is closed. This keeps
* the connection alive and may detect connectivity failures.
*
* If the server does not respond to each ping with a pong within `interval`, this client will
* assume that connectivity has been lost. When this happens on a web socket the connection is
* canceled and its listener is [notified][WebSocketListener.onFailure]. When it happens on an
* HTTP/2 connection the connection is closed and any calls it is carrying
* [will fail with an IOException][java.io.IOException].
*
* The default value of 0 disables client-initiated pings.
*/
@IgnoreJRERequirement
fun pingInterval(duration: Duration) = apply {
pingInterval(duration.toMillis(), MILLISECONDS)
}
/**
* Sets minimum outbound web socket message size (in bytes) that will be compressed.
*
* Set to 0 to enable compression for all outbound messages.
*
* 1024 by default.
*/
fun minWebSocketMessageToCompress(bytes: Long) = apply {
require(bytes >= 0) {
"minWebSocketMessageToCompress must be positive: $bytes"
}
this.minWebSocketMessageToCompress = bytes
}
fun build(): OkHttpClient = OkHttpClient(this)
}
companion object {
internal val DEFAULT_PROTOCOLS = immutableListOf(HTTP_2, HTTP_1_1)
internal val DEFAULT_CONNECTION_SPECS = immutableListOf(
ConnectionSpec.MODERN_TLS,
ConnectionSpec.CLEARTEXT,
)
}
}
