Add further handling for when a CONNECT incorrectly returns a body.

Before the change:
If a proxy returns a body and some of the body bytes have
already been buffered then an IOException is thrown.
If the body bytes have not been buffered then the handshake will
fail due to the presence of bytes where the Server HELLO is
expected, typically with some kind of SSLHandshakeException.

After the change:
The body bytes are consumed to ensure consistent behavior. The
handshake will then take place.

History:
This is an unusual case that would occasionally cause failures
on Android when a ResponseCache was installed. Android introduced
a patch to prevent CONNECT responses being cached. Since then,
OkHttp has changed the code and probably fixed the issue via
other means. The Android test remained and would sometimes
experience one exception, sometimes another, depending on the
state of the buffer.

If the presence of a body is a possibility it would be nice
to deal with it consistently and deterministically.

The motivation for this change is to make an Android test
equivalent to the one added here behave consistently and in a
way that doesn't involve connection fallback.

The only risk with this change is if a proxy is incorrectly
reporting the content length: this might lead to blocking on
the body read/skip (as OkHttp would probably do elsewhere if a
server mis-reports a content-length). This may make connections
to "bad" proxies slightly more reliable.

Bug: 6754912
Bug: 18575971

(cherry picked from commit 007b88ad6df622a2e5daacce604637d006ed6212)

Change-Id: Icf9e17a26dd2b1c4024935dfae3e87b2654a220e
2 files changed
tree: b8a9c346e03d1b1fa26114e070426910828f25bc
  1. android/
  2. benchmarks/
  3. mockwebserver/
  4. okcurl/
  5. okhttp/
  6. okhttp-apache/
  7. okhttp-tests/
  8. okio/
  9. samples/
  10. website/
  11. Android.mk
  12. build.gradle
  13. CHANGELOG.md
  14. checkstyle.xml
  15. concurrency.md
  16. CONTRIBUTING.md
  17. deploy_website.sh
  18. jarjar-rules.txt
  19. LICENSE.txt
  20. MODULE_LICENSE_APACHE2
  21. pom.xml
  22. README.android
  23. README.md
README.md

OkHttp

An HTTP & SPDY client for Android and Java applications.

For more information please see the website.

Download

Download the latest JAR or grab via Maven:

<dependency>
    <groupId>com.squareup.okhttp</groupId>
    <artifactId>okhttp</artifactId>
    <version>(insert latest version)</version>
</dependency>

Building

OkHttp requires Java 7 to build and run tests. Runtime compatibility with Java 6 is enforced as part of the build to ensure compliance with Android and older versions of the JVM.

Testing

On the Desktop

Run OkHttp tests on the desktop with Maven. Running SPDY tests on the desktop uses Jetty-NPN which requires OpenJDK 7+.

mvn clean test

On a Device

OkHttp's test suite creates an in-process HTTPS server. Prior to Android 2.3, SSL server sockets were broken, and so HTTPS tests will time out when run on such devices.

Test on a USB-attached Android using Vogar. Unfortunately dx requires that you build with Java 6, otherwise the test class will be silently omitted from the .dex file.

mvn clean
mvn package -DskipTests
vogar \
    --classpath ~/.m2/repository/org/bouncycastle/bcprov-jdk15on/1.48/bcprov-jdk15on-1.48.jar \
    --classpath mockwebserver/target/mockwebserver-2.0.0-SNAPSHOT.jar \
    --classpath okhttp-protocols/target/okhttp-protocols-2.0.0-SNAPSHOT.jar \
    --classpath okhttp/target/okhttp-2.0.0-SNAPSHOT.jar \
    okhttp/src/test

MockWebServer

A library for testing HTTP, HTTPS, HTTP/2.0, and SPDY clients.

MockWebServer coupling with OkHttp is essential for proper testing of SPDY and HTTP/2.0 so that code can be shared.

Download

Download the latest JAR or grab via Maven:

<dependency>
    <groupId>com.squareup.okhttp</groupId>
    <artifactId>mockwebserver</artifactId>
    <version>(insert latest version)</version>
    <scope>test</scope>
</dependency>

License

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.