square/okhttp
### [`v4.9.3`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-493)
*2021-11-21*
- Fix: Don't fail HTTP/2 responses if they complete before a `RST_STREAM` is sent.
### [`v4.9.2`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-492)
*2021-09-30*
- Fix: Don't include potentially-sensitive header values in `Headers.toString()` or exceptions.
This applies to `Authorization`, `Cookie`, `Proxy-Authorization`, and `Set-Cookie` headers.
- Fix: Don't crash with an `InaccessibleObjectException` when running on JDK17+ with strong
encapsulation enabled.
- Fix: Strictly verify hostnames used with OkHttp's `HostnameVerifier`. Programs that make direct
manual calls to `HostnameVerifier` could be defeated if the hostnames they pass in are not
strictly ASCII. This issue is tracked as \[CVE-2021-0341].
### [`v4.9.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-491)
*2021-01-30*
- Fix: Work around a crash in Android 10 and 11 that may be triggered when two threads
concurrently close an SSL socket. This would have appeared in crash logs as
`NullPointerException: bio == null`.
### [`v4.9.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-490)
*2020-09-11*
**With this release, `okhttp-tls` no longer depends on Bouncy Castle and doesn't install the
Bouncy Castle security provider.** If you still need it, you can do it yourself:
Security.addProvider(BouncyCastleProvider())
You will also need to configure this dependency:
dependencies {
implementation "org.bouncycastle:bcprov-jdk15on:1.65"
}
- Upgrade: \[Kotlin 1.4.10]\[kotlin\_1\_4\_10]. We now use Kotlin 1.4.x \[functional
interfaces]\[fun_interface] for `Authenticator`, `Interceptor`, and others.
- Upgrade: Build with Conscrypt 2.5.1.
### [`v4.8.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-481)
*2020-08-06*
- Fix: Don't crash in `HeldCertificate.Builder` when creating certificates on older versions of
Android, including Android 6. We were using a feature of `SimpleDateFormat` that wasn't
available in those versions!
### [`v4.8.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-480)
*2020-07-11*
- New: Change `HeldCertificate.Builder` to use its own ASN.1 certificate encoder. This is part
of our effort to remove the okhttp-tls module's dependency on Bouncy Castle. We think Bouncy
Castle is great! But it's a large dependency (6.5 MiB) and its security provider feature
impacts VM-wide behavior.
- New: Reduce contention for applications that make a very high number of concurrent requests.
Previously OkHttp used its connection pool as a lock when making changes to connections and
calls. With this change each connection is locked independently.
- Upgrade: \[Okio 2.7.0]\[okio\_2\_7\_0].
```kotlin
implementation("com.squareup.okio:okio:2.7.0")
```
- Fix: Avoid log messages like "Didn't find class org.conscrypt.ConscryptHostnameVerifier" when
detecting the TLS capabilities of the host platform.
- Fix: Don't crash in `HttpUrl.topPrivateDomain()` when the hostname is malformed.
- Fix: Don't attempt Brotli decompression if the response body is empty.
### [`v4.7.2`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-472)
*2020-05-20*
- Fix: Don't crash inspecting whether the host platform is JVM or Android. With 4.7.0 and 4.7.1 we
had a crash `IllegalArgumentException: Not a Conscrypt trust manager` because we depended on
initialization order of companion objects.
### [`v4.7.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-471)
*2020-05-18*
- Fix: Pass the right arguments in the trust manager created for `addInsecureHost()`. Without the
fix insecure hosts crash with an `IllegalArgumentException` on Android.
### [`v4.7.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-470)
*2020-05-17*
- New: `HandshakeCertificates.Builder.addInsecureHost()` makes it easy to turn off security in
private development environments that only carry test data. Prefer this over creating an
all-trusting `TrustManager` because only hosts on the allowlist are insecure. From
\[our DevServer sample]\[dev_server]:
```kotlin
val clientCertificates = HandshakeCertificates.Builder()
.addPlatformTrustedCertificates()
.addInsecureHost("localhost")
.build()
val client = OkHttpClient.Builder()
.sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager)
.build()
```
- New: Add `cacheHit`, `cacheMiss`, and `cacheConditionalHit()` events to `EventListener`. Use
these in logs, metrics, and even test cases to confirm your cache headers are configured as
expected.
- New: Constant string `okhttp3.VERSION`. This is a string like "4.5.0-RC1", "4.5.0", or
"4.6.0-SNAPSHOT" indicating the version of OkHttp in the current runtime. Use this to include
the OkHttp version in custom `User-Agent` headers.
- Fix: Don't crash when running as a plugin in Android Studio Canary 4.1. To enable
platform-specific TLS features OkHttp must detect whether it's running in a JVM or in Android.
The upcoming Android Studio runs in a JVM but has classes from Android and that confused OkHttp!
- Fix: Include the header `Accept: text/event-stream` for SSE calls. This header is not added if
the request already contains an `Accept` header.
- Fix: Don't crash with a `NullPointerException` if a server sends a close while we're sending a
ping. OkHttp had a race condition bug.
### [`v4.6.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-460)
*2020-04-28*
- Fix: Follow HTTP 307 and 308 redirects on methods other than GET and POST. We're reluctant to
change OkHttp's behavior in handling common HTTP status codes, but this fix is overdue! The new
behavior is now consistent with \[RFC 7231]\[rfc\_7231\_647], which is newer than OkHttp itself.
If you want this update with the old behavior use \[this interceptor]\[legacy_interceptor].
- Fix: Don't crash decompressing web sockets messages. We had a bug where we assumed deflated
bytes in would always yield deflated bytes out and this isn't always the case!
- Fix: Reliably update and invalidate the disk cache on windows. As originally designed our
internal `DiskLruCache` assumes an inode-like file system, where it's fine to delete files that
are currently being read or written. On Windows the file system forbids this so we must be more
careful when deleting and renaming files.
- Fix: Don't crash on Java 8u252 which introduces an API previously found only on Java 9 and
above. See \[Jetty's overview]\[jetty\_8\_252] of the API change and its consequences.
- New: `MultipartReader` is a streaming decoder for \[MIME multipart (RFC 2045)]\[rfc\_2045]
messages. It complements `MultipartBody` which is our streaming encoder.
```kotlin
val response: Response = call.execute()
val multipartReader = MultipartReader(response.body!!)
multipartReader.use {
while (true) {
val part = multipartReader.nextPart() ?: break
process(part.headers, part.body)
}
}
```
- New: `MediaType.parameter()` gets a parameter like `boundary` from a media type like
`multipart/mixed; boundary="abc"`.
- New: `Authenticator.JAVA_NET_AUTHENTICATOR` forwards authentication requests to
`java.net.Authenticator`. This obsoletes `JavaNetAuthenticator` in the `okhttp-urlconnection`
module.
- New: `CertificatePinner` now offers an API for inspecting the configured pins.
- Upgrade: \[Okio 2.6.0]\[okio\_2\_6\_0].
```kotlin
implementation("com.squareup.okio:okio:2.6.0")
```
- Upgrade: \[publicsuffix.org data]\[public_suffix]. This powers `HttpUrl.topPrivateDomain()`.
It's also how OkHttp knows which domains can share cookies with one another.
- Upgrade: \[Bouncy Castle 1.65]\[bouncy_castle_releases]. This dependency is required by the
`okhttp-tls` module.
- Upgrade: \[Kotlin 1.3.71]\[kotlin\_1\_3\_71].
### [`v4.5.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-450)
*2020-04-06*
**This release fixes a severe bug where OkHttp incorrectly detected and recovered from unhealthy
connections.** Stale or canceled connections were incorrectly attempted when they shouldn't have
been, leading to rare cases of infinite retries. Please upgrade to this release!
- Fix: don't return stale DNS entries in `DnsOverHttps`. We were caching DNS results indefinitely
rather than the duration specified in the response's cache-control header.
- Fix: Verify certificate IP addresses in canonical form. When a server presents a TLS certificate
containing an IP address we must match that address against the URL's IP address, even when the
two addresses are encoded differently, such as `192.168.1.1` and `0::0:0:FFFF:C0A8:101`. Note
that OkHttp incorrectly rejected valid certificates resulting in a failure to connect; at no
point were invalid certificates accepted.
- New: `OkHttpClient.Builder.minWebSocketMessageToCompress()` configures a threshold for
compressing outbound web socket messages. Configure this with 0L to always compress outbound
messages and `Long.MAX_VALUE` to never compress outbound messages. The default is 1024L which
compresses messages of size 1 KiB and larger. (Inbound messages are compressed or not based on
the web socket server's configuration.)
- New: Defer constructing `Inflater` and `Deflater` instances until they are needed. This saves
memory if web socket compression is negotiated but not used.
### [`v4.4.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-441)
*2020-03-08*
- Fix: Don't reuse a connection on redirect if certs match but DNS does not. For better
locality and performance OkHttp attempts to use the same pooled connection across redirects and
follow-ups. It independently shares connections when the IP addresses and certificates match,
even if the host names do not. In 4.4.0 we introduced a regression where we shared a connection
when certificates matched but the DNS addresses did not. This would only occur when following a
redirect from one hostname to another, and where both hosts had common certificates.
- 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.
### [`v4.4.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-440)
*2020-02-17*
- New: Support `canceled()` as an event that can be observed by `EventListener`. This should be
useful for splitting out canceled calls in metrics.
- New: Publish a \[bill of materials (BOM)]\[bom] for OkHttp. Depend on this from Gradle or Maven to
keep all of your OkHttp artifacts on the same version, even if they're declared via transitive
dependencies. You can even omit versions when declaring other OkHttp dependencies.
```kotlin
dependencies {
api(platform("com.squareup.okhttp3:okhttp-bom:4.4.0"))
api("com.squareup.okhttp3:okhttp") // No version!
api("com.squareup.okhttp3:logging-interceptor") // No version!
}
```
- New: Upgrade to Okio 2.4.3.
```kotlin
implementation("com.squareup.okio:okio:2.4.3")
```
- Fix: Limit retry attempts for HTTP/2 `REFUSED_STREAM` and `CANCEL` failures.
- Fix: Retry automatically when incorrectly sharing a connection among multiple hostnames. OkHttp
shares connections when hosts share both IP addresses and certificates, such as `squareup.com`
and `www.squareup.com`. If a server refuses such sharing it will return HTTP 421 and OkHttp will
automatically retry on an unshared connection.
- Fix: Don't crash if a TLS tunnel's response body is truncated.
- Fix: Don't track unusable routes beyond their usefulness. We had a bug where we could track
certain bad routes indefinitely; now we only track the ones that could be necessary.
- Fix: Defer proxy selection until a proxy is required. This saves calls to `ProxySelector` on
calls that use a pooled connection.
### [`v4.3.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-431)
*2020-01-07*
- Fix: Don't crash with a `NullPointerException` when a web socket is closed before it connects.
This regression was introduced in OkHttp 4.3.0.
- Fix: Don't crash with an `IllegalArgumentException` when using custom trust managers on
Android 10. Android uses reflection to look up a magic `checkServerTrusted()` method and we
didn't have it.
- Fix: Explicitly specify the remote server name when making HTTPS connections on Android 5. In
4.3.0 we introduced a regression where server name indication (SNI) was broken on Android 5.
### [`v4.3.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-430)
*2019-12-31*
- Fix: Degrade HTTP/2 connections after a timeout. When an HTTP/2 stream times out it may impact
the stream only or the entire connection. With this fix OkHttp will now send HTTP/2 pings after
a stream timeout to determine whether the connection should remain eligible for pooling.
- Fix: Don't call `EventListener.responseHeadersStart()` or `responseBodyStart()` until bytes have
been received. Previously these events were incorrectly sent too early, when OkHttp was ready to
read the response headers or body, which mislead tracing tools. Note that the `responseFailed()`
event always used to follow one of these events; now it may be sent without them.
- New: Upgrade to Kotlin 1.3.61.
- New: Match any number of subdomains with two asterisks in `CertificatePinner`. For example,
`**.squareup.com` matches `us-west.www.squareup.com`, `www.squareup.com` and `squareup.com`.
- New: Share threads more aggressively between OkHttp's HTTP/2 connections, connection pool,
web sockets, and cache. OkHttp has a new internal task runner abstraction for managed task
scheduling. In your debugger you will see new thread names and more use of daemon threads.
- Fix: Don't drop callbacks on unexpected exceptions. When an interceptor throws an unchecked
exception the callback is now notified that the call was canceled. The exception is still sent
to the uncaught exception handler for reporting and recovery.
- Fix: Un-deprecate `MockResponse.setHeaders()` and other setters. These were deprecated in OkHttp
4.0 but that broke method chaining for Java callers.
- Fix: Don't crash on HTTP/2 HEAD requests when the `Content-Length` header is present but is not
consistent with the length of the response body.
- Fix: Don't crash when converting a `HttpUrl` instance with an unresolvable hostname to a URI.
The new behavior strips invalid characters like `"` and `{` from the hostname before converting.
- Fix: Undo a performance regression introduced in OkHttp 4.0 caused by differences in behavior
between Kotlin's `assert()` and Java's `assert()`. (Kotlin always evaluates the argument; Java
only does when assertions are enabled.)
- Fix: Honor `RequestBody.isOneShot()` in `HttpLoggingInterceptor`.
### [`v4.2.2`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-422)
*2019-10-06*
- Fix: When closing a canceled HTTP/2 stream, don't send the `END_STREAM` flag. This could cause
the server to incorrectly interpret the stream as having completed normally. This is most useful
when a request body needs to cancel its own call.
### [`v4.2.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-421)
*2019-10-02*
- Fix: In 4.1.0 we introduced a performance regression that prevented connections from being
pooled in certain situations. We have good test coverage for connection pooling but we missed
this because it only occurs if you have proxy configured and you share a connection pool among
multiple `OkHttpClient` instances.
This particularly-subtle bug was caused by us assigning each `OkHttpClient` instance its own
`NullProxySelector` when an explicit proxy is configured. But we don't share connections when
the proxy selectors are different. Ugh!
### [`v4.2.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-420)
*2019-09-10*
- New: API to decode a certificate and private key to create a `HeldCertificate`. This accepts a
string containing both a certificate and PKCS [#8](https://togithub.com/square/okhttp/issues/8)-encoded private key.
```kotlin
val heldCertificate = HeldCertificate.decode("""
|-----BEGIN CERTIFICATE-----
|MIIBYTCCAQegAwIBAgIBKjAKBggqhkjOPQQDAjApMRQwEgYDVQQLEwtlbmdpbmVl
|cmluZzERMA8GA1UEAxMIY2FzaC5hcHAwHhcNNzAwMTAxMDAwMDA1WhcNNzAwMTAx
|MDAwMDEwWjApMRQwEgYDVQQLEwtlbmdpbmVlcmluZzERMA8GA1UEAxMIY2FzaC5h
|cHAwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASda8ChkQXxGELnrV/oBnIAx3dD
|ocUOJfdz4pOJTP6dVQB9U3UBiW5uSX/MoOD0LL5zG3bVyL3Y6pDwKuYvfLNhoyAw
|HjAcBgNVHREBAf8EEjAQhwQBAQEBgghjYXNoLmFwcDAKBggqhkjOPQQDAgNIADBF
|AiAyHHg1N6YDDQiY920+cnI5XSZwEGhAtb9PYWO8bLmkcQIhAI2CfEZf3V/obmdT
|yyaoEufLKVXhrTQhRfodTeigi4RX
|-----END CERTIFICATE-----
|-----BEGIN PRIVATE KEY-----
|MEECAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQcEJzAlAgEBBCA7ODT0xhGSNn4ESj6J
|lu/GJQZoU9lDrCPeUcQ28tzOWw==
|-----END PRIVATE KEY-----
""".trimMargin())
val handshakeCertificates = HandshakeCertificates.Builder()
.heldCertificate(heldCertificate)
.build()
val server = MockWebServer()
server.useHttps(handshakeCertificates.sslSocketFactory(), false)
```
Get these strings with `HeldCertificate.certificatePem()` and `privateKeyPkcs8Pem()`.
- Fix: Handshake now returns peer certificates in canonical order: each certificate is signed by
the certificate that follows and the last certificate is signed by a trusted root.
- Fix: Don't lose HTTP/2 flow control bytes when incoming data races with a stream close. If this
happened enough then eventually the connection would stall.
- Fix: Acknowledge and apply inbound HTTP/2 settings atomically. Previously we had a race where we
could use new flow control capacity before acknowledging it, causing strict HTTP/2 servers to
fail the call.
### [`v4.1.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-411)
*2019-09-05*
- Fix: Don't drop repeated headers when validating cached responses. In our Kotlin upgrade we
introduced a regression where we iterated the number of unique header names rather than then
number of unique headers. If you're using OkHttp's response cache this may impact you.
### [`v4.1.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-410)
*2019-08-12*
[brotli]: https://togithub.com/google/brotli
- **OkHttp's new okhttp-brotli module implements Brotli compression.** Install the interceptor to
enable [Brotli compression][brotli], which compresses 5-20% smaller than gzip.
val client = OkHttpClient.Builder()
.addInterceptor(BrotliInterceptor)
.build()
This artifact has a dependency on Google's Brotli decoder (95 KiB).
- New: `EventListener.proxySelectStart()`, `proxySelectEnd()` events give visibility into the
proxy selection process.
- New: `Response.byteString()` reads the entire response into memory as a byte string.
- New: `OkHttpClient.x509TrustManager` accessor.
- New: Permit \[new WebSocket response codes]\[iana_websocket]: 1012 (Service Restart), 1013 (Try
Again Later), and 1014 (invalid response from the upstream).
- New: Build with Kotlin 1.3.41, BouncyCastle 1.62, and Conscrypt 2.2.1.
- Fix: Recover gracefully when a coalesced connection immediately goes unhealthy.
- Fix: Defer the `SecurityException` when looking up the default proxy selector.
- Fix: Don't use brackets formatting IPv6 host names in MockWebServer.
- Fix: Don't permit cache iterators to remove entries that are being written.
### [`v4.0.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-401)
*2019-07-10*
- Fix: Tolerate null-hostile lists in public API. Lists created with `List.of(...)` don't like it
when you call `contains(null)` on them!
- Fix: Retain binary-compatibility in `okhttp3.internal.HttpHeaders.hasBody()`. Some unscrupulous
coders call this and we don't want their users to suffer.
### [`v4.0.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-400)
*2019-06-26*
**This release upgrades OkHttp to Kotlin.** We tried our best to make fast and safe to upgrade
from OkHttp 3.x. We wrote an \[upgrade guide]\[upgrading_to_okhttp\_4] to help with the migration and a
\[blog post]\[okhttp4\_blog_post] to explain it.
- Fix: Target Java 8 bytecode for Java and Kotlin.
Configuration
📅 Schedule: At any time (no schedule defined).
🚦 Automerge: Enabled.
♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
[ ] If you want to rebase/retry this PR, click this checkbox.
This PR contains the following updates:
3.14.9->4.9.3Release Notes
square/okhttp
### [`v4.9.3`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-493) *2021-11-21* - Fix: Don't fail HTTP/2 responses if they complete before a `RST_STREAM` is sent. ### [`v4.9.2`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-492) *2021-09-30* - Fix: Don't include potentially-sensitive header values in `Headers.toString()` or exceptions. This applies to `Authorization`, `Cookie`, `Proxy-Authorization`, and `Set-Cookie` headers. - Fix: Don't crash with an `InaccessibleObjectException` when running on JDK17+ with strong encapsulation enabled. - Fix: Strictly verify hostnames used with OkHttp's `HostnameVerifier`. Programs that make direct manual calls to `HostnameVerifier` could be defeated if the hostnames they pass in are not strictly ASCII. This issue is tracked as \[CVE-2021-0341]. ### [`v4.9.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-491) *2021-01-30* - Fix: Work around a crash in Android 10 and 11 that may be triggered when two threads concurrently close an SSL socket. This would have appeared in crash logs as `NullPointerException: bio == null`. ### [`v4.9.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-490) *2020-09-11* **With this release, `okhttp-tls` no longer depends on Bouncy Castle and doesn't install the Bouncy Castle security provider.** If you still need it, you can do it yourself: Security.addProvider(BouncyCastleProvider()) You will also need to configure this dependency: dependencies { implementation "org.bouncycastle:bcprov-jdk15on:1.65" } - Upgrade: \[Kotlin 1.4.10]\[kotlin\_1\_4\_10]. We now use Kotlin 1.4.x \[functional interfaces]\[fun_interface] for `Authenticator`, `Interceptor`, and others. - Upgrade: Build with Conscrypt 2.5.1. ### [`v4.8.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-481) *2020-08-06* - Fix: Don't crash in `HeldCertificate.Builder` when creating certificates on older versions of Android, including Android 6. We were using a feature of `SimpleDateFormat` that wasn't available in those versions! ### [`v4.8.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-480) *2020-07-11* - New: Change `HeldCertificate.Builder` to use its own ASN.1 certificate encoder. This is part of our effort to remove the okhttp-tls module's dependency on Bouncy Castle. We think Bouncy Castle is great! But it's a large dependency (6.5 MiB) and its security provider feature impacts VM-wide behavior. - New: Reduce contention for applications that make a very high number of concurrent requests. Previously OkHttp used its connection pool as a lock when making changes to connections and calls. With this change each connection is locked independently. - Upgrade: \[Okio 2.7.0]\[okio\_2\_7\_0]. ```kotlin implementation("com.squareup.okio:okio:2.7.0") ``` - Fix: Avoid log messages like "Didn't find class org.conscrypt.ConscryptHostnameVerifier" when detecting the TLS capabilities of the host platform. - Fix: Don't crash in `HttpUrl.topPrivateDomain()` when the hostname is malformed. - Fix: Don't attempt Brotli decompression if the response body is empty. ### [`v4.7.2`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-472) *2020-05-20* - Fix: Don't crash inspecting whether the host platform is JVM or Android. With 4.7.0 and 4.7.1 we had a crash `IllegalArgumentException: Not a Conscrypt trust manager` because we depended on initialization order of companion objects. ### [`v4.7.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-471) *2020-05-18* - Fix: Pass the right arguments in the trust manager created for `addInsecureHost()`. Without the fix insecure hosts crash with an `IllegalArgumentException` on Android. ### [`v4.7.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-470) *2020-05-17* - New: `HandshakeCertificates.Builder.addInsecureHost()` makes it easy to turn off security in private development environments that only carry test data. Prefer this over creating an all-trusting `TrustManager` because only hosts on the allowlist are insecure. From \[our DevServer sample]\[dev_server]: ```kotlin val clientCertificates = HandshakeCertificates.Builder() .addPlatformTrustedCertificates() .addInsecureHost("localhost") .build() val client = OkHttpClient.Builder() .sslSocketFactory(clientCertificates.sslSocketFactory(), clientCertificates.trustManager) .build() ``` - New: Add `cacheHit`, `cacheMiss`, and `cacheConditionalHit()` events to `EventListener`. Use these in logs, metrics, and even test cases to confirm your cache headers are configured as expected. - New: Constant string `okhttp3.VERSION`. This is a string like "4.5.0-RC1", "4.5.0", or "4.6.0-SNAPSHOT" indicating the version of OkHttp in the current runtime. Use this to include the OkHttp version in custom `User-Agent` headers. - Fix: Don't crash when running as a plugin in Android Studio Canary 4.1. To enable platform-specific TLS features OkHttp must detect whether it's running in a JVM or in Android. The upcoming Android Studio runs in a JVM but has classes from Android and that confused OkHttp! - Fix: Include the header `Accept: text/event-stream` for SSE calls. This header is not added if the request already contains an `Accept` header. - Fix: Don't crash with a `NullPointerException` if a server sends a close while we're sending a ping. OkHttp had a race condition bug. ### [`v4.6.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-460) *2020-04-28* - Fix: Follow HTTP 307 and 308 redirects on methods other than GET and POST. We're reluctant to change OkHttp's behavior in handling common HTTP status codes, but this fix is overdue! The new behavior is now consistent with \[RFC 7231]\[rfc\_7231\_647], which is newer than OkHttp itself. If you want this update with the old behavior use \[this interceptor]\[legacy_interceptor]. - Fix: Don't crash decompressing web sockets messages. We had a bug where we assumed deflated bytes in would always yield deflated bytes out and this isn't always the case! - Fix: Reliably update and invalidate the disk cache on windows. As originally designed our internal `DiskLruCache` assumes an inode-like file system, where it's fine to delete files that are currently being read or written. On Windows the file system forbids this so we must be more careful when deleting and renaming files. - Fix: Don't crash on Java 8u252 which introduces an API previously found only on Java 9 and above. See \[Jetty's overview]\[jetty\_8\_252] of the API change and its consequences. - New: `MultipartReader` is a streaming decoder for \[MIME multipart (RFC 2045)]\[rfc\_2045] messages. It complements `MultipartBody` which is our streaming encoder. ```kotlin val response: Response = call.execute() val multipartReader = MultipartReader(response.body!!) multipartReader.use { while (true) { val part = multipartReader.nextPart() ?: break process(part.headers, part.body) } } ``` - New: `MediaType.parameter()` gets a parameter like `boundary` from a media type like `multipart/mixed; boundary="abc"`. - New: `Authenticator.JAVA_NET_AUTHENTICATOR` forwards authentication requests to `java.net.Authenticator`. This obsoletes `JavaNetAuthenticator` in the `okhttp-urlconnection` module. - New: `CertificatePinner` now offers an API for inspecting the configured pins. - Upgrade: \[Okio 2.6.0]\[okio\_2\_6\_0]. ```kotlin implementation("com.squareup.okio:okio:2.6.0") ``` - Upgrade: \[publicsuffix.org data]\[public_suffix]. This powers `HttpUrl.topPrivateDomain()`. It's also how OkHttp knows which domains can share cookies with one another. - Upgrade: \[Bouncy Castle 1.65]\[bouncy_castle_releases]. This dependency is required by the `okhttp-tls` module. - Upgrade: \[Kotlin 1.3.71]\[kotlin\_1\_3\_71]. ### [`v4.5.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-450) *2020-04-06* **This release fixes a severe bug where OkHttp incorrectly detected and recovered from unhealthy connections.** Stale or canceled connections were incorrectly attempted when they shouldn't have been, leading to rare cases of infinite retries. Please upgrade to this release! - Fix: don't return stale DNS entries in `DnsOverHttps`. We were caching DNS results indefinitely rather than the duration specified in the response's cache-control header. - Fix: Verify certificate IP addresses in canonical form. When a server presents a TLS certificate containing an IP address we must match that address against the URL's IP address, even when the two addresses are encoded differently, such as `192.168.1.1` and `0::0:0:FFFF:C0A8:101`. Note that OkHttp incorrectly rejected valid certificates resulting in a failure to connect; at no point were invalid certificates accepted. - New: `OkHttpClient.Builder.minWebSocketMessageToCompress()` configures a threshold for compressing outbound web socket messages. Configure this with 0L to always compress outbound messages and `Long.MAX_VALUE` to never compress outbound messages. The default is 1024L which compresses messages of size 1 KiB and larger. (Inbound messages are compressed or not based on the web socket server's configuration.) - New: Defer constructing `Inflater` and `Deflater` instances until they are needed. This saves memory if web socket compression is negotiated but not used. ### [`v4.4.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-441) *2020-03-08* - Fix: Don't reuse a connection on redirect if certs match but DNS does not. For better locality and performance OkHttp attempts to use the same pooled connection across redirects and follow-ups. It independently shares connections when the IP addresses and certificates match, even if the host names do not. In 4.4.0 we introduced a regression where we shared a connection when certificates matched but the DNS addresses did not. This would only occur when following a redirect from one hostname to another, and where both hosts had common certificates. - 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. ### [`v4.4.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-440) *2020-02-17* - New: Support `canceled()` as an event that can be observed by `EventListener`. This should be useful for splitting out canceled calls in metrics. - New: Publish a \[bill of materials (BOM)]\[bom] for OkHttp. Depend on this from Gradle or Maven to keep all of your OkHttp artifacts on the same version, even if they're declared via transitive dependencies. You can even omit versions when declaring other OkHttp dependencies. ```kotlin dependencies { api(platform("com.squareup.okhttp3:okhttp-bom:4.4.0")) api("com.squareup.okhttp3:okhttp") // No version! api("com.squareup.okhttp3:logging-interceptor") // No version! } ``` - New: Upgrade to Okio 2.4.3. ```kotlin implementation("com.squareup.okio:okio:2.4.3") ``` - Fix: Limit retry attempts for HTTP/2 `REFUSED_STREAM` and `CANCEL` failures. - Fix: Retry automatically when incorrectly sharing a connection among multiple hostnames. OkHttp shares connections when hosts share both IP addresses and certificates, such as `squareup.com` and `www.squareup.com`. If a server refuses such sharing it will return HTTP 421 and OkHttp will automatically retry on an unshared connection. - Fix: Don't crash if a TLS tunnel's response body is truncated. - Fix: Don't track unusable routes beyond their usefulness. We had a bug where we could track certain bad routes indefinitely; now we only track the ones that could be necessary. - Fix: Defer proxy selection until a proxy is required. This saves calls to `ProxySelector` on calls that use a pooled connection. ### [`v4.3.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-431) *2020-01-07* - Fix: Don't crash with a `NullPointerException` when a web socket is closed before it connects. This regression was introduced in OkHttp 4.3.0. - Fix: Don't crash with an `IllegalArgumentException` when using custom trust managers on Android 10. Android uses reflection to look up a magic `checkServerTrusted()` method and we didn't have it. - Fix: Explicitly specify the remote server name when making HTTPS connections on Android 5. In 4.3.0 we introduced a regression where server name indication (SNI) was broken on Android 5. ### [`v4.3.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-430) *2019-12-31* - Fix: Degrade HTTP/2 connections after a timeout. When an HTTP/2 stream times out it may impact the stream only or the entire connection. With this fix OkHttp will now send HTTP/2 pings after a stream timeout to determine whether the connection should remain eligible for pooling. - Fix: Don't call `EventListener.responseHeadersStart()` or `responseBodyStart()` until bytes have been received. Previously these events were incorrectly sent too early, when OkHttp was ready to read the response headers or body, which mislead tracing tools. Note that the `responseFailed()` event always used to follow one of these events; now it may be sent without them. - New: Upgrade to Kotlin 1.3.61. - New: Match any number of subdomains with two asterisks in `CertificatePinner`. For example, `**.squareup.com` matches `us-west.www.squareup.com`, `www.squareup.com` and `squareup.com`. - New: Share threads more aggressively between OkHttp's HTTP/2 connections, connection pool, web sockets, and cache. OkHttp has a new internal task runner abstraction for managed task scheduling. In your debugger you will see new thread names and more use of daemon threads. - Fix: Don't drop callbacks on unexpected exceptions. When an interceptor throws an unchecked exception the callback is now notified that the call was canceled. The exception is still sent to the uncaught exception handler for reporting and recovery. - Fix: Un-deprecate `MockResponse.setHeaders()` and other setters. These were deprecated in OkHttp 4.0 but that broke method chaining for Java callers. - Fix: Don't crash on HTTP/2 HEAD requests when the `Content-Length` header is present but is not consistent with the length of the response body. - Fix: Don't crash when converting a `HttpUrl` instance with an unresolvable hostname to a URI. The new behavior strips invalid characters like `"` and `{` from the hostname before converting. - Fix: Undo a performance regression introduced in OkHttp 4.0 caused by differences in behavior between Kotlin's `assert()` and Java's `assert()`. (Kotlin always evaluates the argument; Java only does when assertions are enabled.) - Fix: Honor `RequestBody.isOneShot()` in `HttpLoggingInterceptor`. ### [`v4.2.2`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-422) *2019-10-06* - Fix: When closing a canceled HTTP/2 stream, don't send the `END_STREAM` flag. This could cause the server to incorrectly interpret the stream as having completed normally. This is most useful when a request body needs to cancel its own call. ### [`v4.2.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-421) *2019-10-02* - Fix: In 4.1.0 we introduced a performance regression that prevented connections from being pooled in certain situations. We have good test coverage for connection pooling but we missed this because it only occurs if you have proxy configured and you share a connection pool among multiple `OkHttpClient` instances. This particularly-subtle bug was caused by us assigning each `OkHttpClient` instance its own `NullProxySelector` when an explicit proxy is configured. But we don't share connections when the proxy selectors are different. Ugh! ### [`v4.2.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-420) *2019-09-10* - New: API to decode a certificate and private key to create a `HeldCertificate`. This accepts a string containing both a certificate and PKCS [#8](https://togithub.com/square/okhttp/issues/8)-encoded private key. ```kotlin val heldCertificate = HeldCertificate.decode(""" |-----BEGIN CERTIFICATE----- |MIIBYTCCAQegAwIBAgIBKjAKBggqhkjOPQQDAjApMRQwEgYDVQQLEwtlbmdpbmVl |cmluZzERMA8GA1UEAxMIY2FzaC5hcHAwHhcNNzAwMTAxMDAwMDA1WhcNNzAwMTAx |MDAwMDEwWjApMRQwEgYDVQQLEwtlbmdpbmVlcmluZzERMA8GA1UEAxMIY2FzaC5h |cHAwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASda8ChkQXxGELnrV/oBnIAx3dD |ocUOJfdz4pOJTP6dVQB9U3UBiW5uSX/MoOD0LL5zG3bVyL3Y6pDwKuYvfLNhoyAw |HjAcBgNVHREBAf8EEjAQhwQBAQEBgghjYXNoLmFwcDAKBggqhkjOPQQDAgNIADBF |AiAyHHg1N6YDDQiY920+cnI5XSZwEGhAtb9PYWO8bLmkcQIhAI2CfEZf3V/obmdT |yyaoEufLKVXhrTQhRfodTeigi4RX |-----END CERTIFICATE----- |-----BEGIN PRIVATE KEY----- |MEECAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQcEJzAlAgEBBCA7ODT0xhGSNn4ESj6J |lu/GJQZoU9lDrCPeUcQ28tzOWw== |-----END PRIVATE KEY----- """.trimMargin()) val handshakeCertificates = HandshakeCertificates.Builder() .heldCertificate(heldCertificate) .build() val server = MockWebServer() server.useHttps(handshakeCertificates.sslSocketFactory(), false) ``` Get these strings with `HeldCertificate.certificatePem()` and `privateKeyPkcs8Pem()`. - Fix: Handshake now returns peer certificates in canonical order: each certificate is signed by the certificate that follows and the last certificate is signed by a trusted root. - Fix: Don't lose HTTP/2 flow control bytes when incoming data races with a stream close. If this happened enough then eventually the connection would stall. - Fix: Acknowledge and apply inbound HTTP/2 settings atomically. Previously we had a race where we could use new flow control capacity before acknowledging it, causing strict HTTP/2 servers to fail the call. ### [`v4.1.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-411) *2019-09-05* - Fix: Don't drop repeated headers when validating cached responses. In our Kotlin upgrade we introduced a regression where we iterated the number of unique header names rather than then number of unique headers. If you're using OkHttp's response cache this may impact you. ### [`v4.1.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-410) *2019-08-12* [brotli]: https://togithub.com/google/brotli - **OkHttp's new okhttp-brotli module implements Brotli compression.** Install the interceptor to enable [Brotli compression][brotli], which compresses 5-20% smaller than gzip. val client = OkHttpClient.Builder() .addInterceptor(BrotliInterceptor) .build() This artifact has a dependency on Google's Brotli decoder (95 KiB). - New: `EventListener.proxySelectStart()`, `proxySelectEnd()` events give visibility into the proxy selection process. - New: `Response.byteString()` reads the entire response into memory as a byte string. - New: `OkHttpClient.x509TrustManager` accessor. - New: Permit \[new WebSocket response codes]\[iana_websocket]: 1012 (Service Restart), 1013 (Try Again Later), and 1014 (invalid response from the upstream). - New: Build with Kotlin 1.3.41, BouncyCastle 1.62, and Conscrypt 2.2.1. - Fix: Recover gracefully when a coalesced connection immediately goes unhealthy. - Fix: Defer the `SecurityException` when looking up the default proxy selector. - Fix: Don't use brackets formatting IPv6 host names in MockWebServer. - Fix: Don't permit cache iterators to remove entries that are being written. ### [`v4.0.1`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-401) *2019-07-10* - Fix: Tolerate null-hostile lists in public API. Lists created with `List.of(...)` don't like it when you call `contains(null)` on them! - Fix: Retain binary-compatibility in `okhttp3.internal.HttpHeaders.hasBody()`. Some unscrupulous coders call this and we don't want their users to suffer. ### [`v4.0.0`](https://togithub.com/square/okhttp/blob/HEAD/CHANGELOG.md#Version-400) *2019-06-26* **This release upgrades OkHttp to Kotlin.** We tried our best to make fast and safe to upgrade from OkHttp 3.x. We wrote an \[upgrade guide]\[upgrading_to_okhttp\_4] to help with the migration and a \[blog post]\[okhttp4\_blog_post] to explain it. - Fix: Target Java 8 bytecode for Java and Kotlin.Configuration
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