[jira] [Created] (HTTPCORE-417) Infinite loop in LengthDelimitedEncoder due to negative return from SSLIOSession.writePlain()

["Miles Spielberg (JIRA)" <ji...@apache.org>]

Miles Spielberg created HTTPCORE-417:
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             Summary: Infinite loop in LengthDelimitedEncoder due to negative return from SSLIOSession.writePlain()
                 Key: HTTPCORE-417
                 URL: https://issues.apache.org/jira/browse/HTTPCORE-417
             Project: HttpComponents HttpCore
          Issue Type: Bug
          Components: HttpCore NIO
    Affects Versions: 4.4.4
            Reporter: Miles Spielberg
            Priority: Critical


SSLIOSession.InternalByteChannel.write(ByteBuffer) does not obey the WriteableByteChannel contract. In writePlain(), if the channel is closed, -1 is returned, but WriteableByteChannel should throw ClosedChannelException in this case, and should certainly never return a negative value.

This leads to an infinite loop in LengthDelimitedEncoder.write(). AbstractContentEncoder.writeToChannel() returns the -1 from SSLIOSession.InternalByteChannel, and this causes remaining to grow without bound (https://hc.apache.org/httpcomponents-core-4.4.x/httpcore-nio/xref/org/apache/http/impl/nio/codecs/LengthDelimitedEncoder.html#133).

In my application, I see a stack trace similar to the following:

[code]
 I/O dispatcher 2 tid=199 [RUNNABLE]
org.apache.http.nio.reactor.ssl.SSLIOSession.access$100(SSLIOSession, ByteBuffer) SSLIOSession.java:72
org.apache.http.nio.reactor.ssl.SSLIOSession$InternalByteChannel.write(ByteBuffer) SSLIOSession.java:811
org.apache.http.impl.nio.codecs.AbstractContentEncoder.doWriteChunk(ByteBuffer, boolean) AbstractContentEncoder.java:173
org.apache.http.impl.nio.codecs.AbstractContentEncoder.doWriteChunk(ByteBuffer, int, boolean) AbstractContentEncoder.java:166
org.apache.http.impl.nio.codecs.AbstractContentEncoder.writeToChannel(ByteBuffer, int) AbstractContentEncoder.java:140
org.apache.http.impl.nio.codecs.LengthDelimitedEncoder.write(ByteBuffer) LengthDelimitedEncoder.java:132
com.box.http.apacheasync.compat.request.ActorSubscriberContentProducer$ContentProducer$.produceContent(ContentEncoder, IOControl) ActorSubscriberContentProducer.scala:114
com.box.http.apacheasync.compat.request.RequestConverter$$anon$1.produceContent(ContentEncoder, IOControl) RequestConverter.scala:78
org.apache.http.nio.protocol.BasicAsyncRequestProducer.produceContent(ContentEncoder, IOControl) BasicAsyncRequestProducer.java:125
org.apache.http.impl.nio.client.MainClientExec.produceContent(InternalState, ContentEncoder, IOControl) MainClientExec.java:262
org.apache.http.impl.nio.client.DefaultClientExchangeHandlerImpl.produceContent(ContentEncoder, IOControl) DefaultClientExchangeHandlerImpl.java:136
org.apache.http.nio.protocol.HttpAsyncRequestExecutor.outputReady(NHttpClientConnection, ContentEncoder) HttpAsyncRequestExecutor.java:229
org.apache.http.impl.nio.DefaultNHttpClientConnection.produceOutput(NHttpClientEventHandler) DefaultNHttpClientConnection.java:292
org.apache.http.impl.nio.client.InternalIODispatch.onOutputReady(DefaultNHttpClientConnection) InternalIODispatch.java:86
org.apache.http.impl.nio.client.InternalIODispatch.onOutputReady(Object) InternalIODispatch.java:39
org.apache.http.impl.nio.reactor.AbstractIODispatch.outputReady(IOSession) AbstractIODispatch.java:154
org.apache.http.impl.nio.reactor.BaseIOReactor.writable(SelectionKey) BaseIOReactor.java:190
org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(SelectionKey) AbstractIOReactor.java:343
org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(Set) AbstractIOReactor.java:317
org.apache.http.impl.nio.reactor.AbstractIOReactor.execute() AbstractIOReactor.java:278
org.apache.http.impl.nio.reactor.BaseIOReactor.execute(IOEventDispatch) BaseIOReactor.java:106
org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run() AbstractMultiworkerIOReactor.java:590
java.lang.Thread.run() Thread.java:744
[/code]



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