Reworked HTTP/2 release after an exchange is terminated.
Previously, the release was bound to 2 events: onStreamClosed(),
introduced for #2796, and exchangeTerminated().
Unfortunately, if the former happens before the latter and
closes the connection, the latter will see the exchange as
aborted, while in fact it was successful, causing what
reported in #5147, an AsynchronousCloseException.
Now, the release is always performed by the exchangeTerminated()
event. With respect to #2796, the stream is always already
closed by the time the exchangeTerminated() event fires (it
was not before).
Reworked the implementation of RoundRobinConnectionPool using
a lock and aggressively trying to open new connections.
A second fix is related to HttpDestination.release(Connection).
If the connection is closed for e.g. overuse, we need to trigger
the processing of queued requests via send(create: true).
Signed-off-by: Simone Bordet <simone.bordet@gmail.com>
On the client:
* Origin.Address.host is passed through HostPort.normalizeHost(),
so that if it is IPv6 is bracketed.
Now the ipv6 address passed to an `HttClient` request is bracketed.
* HttpRequest was de-bracketing the host, but now it does not anymore.
On the server:
* Request.getLocalAddr(), getLocalName(), getRemoteAddr(),
getRemoteHost(), getServerName(), when dealing with an IPv6 address,
return it bracketed.
The reason to return bracketed IPv6 also from *Addr() methods is that
if it is used with InetAddress/InetSocketAddress it still works, but
often it is interpreted as a URI host so brackets are necessary.
* DoSFilter was blindly bracketing - now it does not.
Added a number of test cases, and fixed those that expected
non-bracketed IPv6.
Signed-off-by: Simone Bordet <simone.bordet@gmail.com>
* Issue #5093 Static UrlEncoded
Updated UrlEncoded to static only class with no synchronization
* Fixed additional tests
* fixed formatting
Signed-off-by: gregw <gregw@webtide.com>
* Replaced relevant usages of synchronized with AutoLock.
* Made AutoLock serializable since classes that use it may be stored in the HttpSession.
* Added convenience methods to AutoLock to execute lambdas with the lock held.
* Introduced AutoLock.WithCondition to use a Lock and a Condition together.
Signed-off-by: Simone Bordet <simone.bordet@gmail.com>
Fixes#4967 - Possible buffer corruption in HTTP/2 session failures
Partially reverted the changes introduced in #4855, because they
were working only when sends were synchronous.
Introduced ByteBufferPool.remove(ByteBuffer) to fix the issue.
Now when a concurrent failure happens while frames are being
generated or sent, the buffer is discarded instead of being
recycled, therefore resolving the buffer corruption.
Signed-off-by: Simone Bordet <simone.bordet@gmail.com>