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From "Oleg Kalnichevski (JIRA)" <j...@apache.org>
Subject [jira] Reopened: (HTTPCORE-195) Make it easier to override the default behavior of ChunkDecoder through subclassing
Date Sun, 17 May 2009 17:33:45 GMT

     [ https://issues.apache.org/jira/browse/HTTPCORE-195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Oleg Kalnichevski reopened HTTPCORE-195:
----------------------------------------


Re-opening as improvement.

Oleg

> Make it easier to override the default behavior of ChunkDecoder through subclassing
> -----------------------------------------------------------------------------------
>
>                 Key: HTTPCORE-195
>                 URL: https://issues.apache.org/jira/browse/HTTPCORE-195
>             Project: HttpComponents HttpCore
>          Issue Type: Improvement
>          Components: HttpCore NIO
>    Affects Versions: 4.0
>            Reporter: Patrick Moore
>            Priority: Minor
>             Fix For: 4.1
>
>
> Our server is webcrawling.
> We are frequently encountering this issue. We think this might be related to something
on the server that we are scanning. But that doesn't matter. We need to handle such cases
without exceptions. (From my perspective, such things should generate a debug message -- certainly
not an exception that ends processing and throws away the retrieved content! )
> http://stuftpizza.com/ seems to reliably result in this problem
> May be TransferEncoding? http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.6
> Either way we need to be able to deal with issues on the other servers.
> {{{
> Date	Mon, 20 Apr 2009 03:56:45 GMT
> Server	Apache/2.2.3 (Red Hat)
> Accept-Ranges	bytes
> Connection	close
> Transfer-Encoding	chunked
> Content-Type	text/html
> '''Request Headers'''
> Host	stuftpizza.com
> User-Agent	Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.8) Gecko/2009032608
Firefox/3.0.8
> Accept	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language	en-us,en;q=0.5
> Accept-Encoding	gzip,deflate
> Accept-Charset	ISO-8859-1,utf-8;q=0.7,*;q=0.7
> Keep-Alive	300
> Connection	keep-alive
> Cookie	
> __utma=47358053.1237981682.1240199754.1240199754.1240199754.1; __utmb=47358053; __utmc=47358053;
__utmz
> =47358053.1240199754.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none)
> Cache-Control	max-age=0
> }}}
> {{{
> 20:51:08,768 INFO  [nioEventListener] Request http://stuftpizza.com/ failed with exception.
> org.apache.http.MalformedChunkCodingException: Truncated chunk
> 	at org.apache.http.impl.nio.codecs.ChunkDecoder.read(ChunkDecoder.java:203)
> 	at org.apache.http.nio.util.SimpleInputBuffer.consumeContent(SimpleInputBuffer.java:60)
> 	at org.apache.http.nio.entity.BufferingNHttpEntity.consumeContent(BufferingNHttpEntity.java:72)
> 	at org.apache.http.nio.protocol.AsyncNHttpClientHandler.inputReady(AsyncNHttpClientHandler.java:236)
> 	at org.apache.http.nio.protocol.BufferingHttpClientHandler.inputReady(BufferingHttpClientHandler.java:118)
> 	at org.apache.http.impl.nio.DefaultNHttpClientConnection.consumeInput(DefaultNHttpClientConnection.java:178)
> 	at org.apache.http.impl.nio.DefaultClientIOEventDispatch.inputReady(DefaultClientIOEventDispatch.java:146)
> 	at com.amplafi.iomanagement.http.UniversalIOEventDispatch.inputReady(UniversalIOEventDispatch.java:133)
> 	at $IOEventDispatch_120c19cd1c7.inputReady($IOEventDispatch_120c19cd1c7.java)
> 	at org.apache.http.impl.nio.reactor.BaseIOReactor.readable(BaseIOReactor.java:153)
> 	at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvent(AbstractIOReactor.java:314)
> 	at org.apache.http.impl.nio.reactor.AbstractIOReactor.processEvents(AbstractIOReactor.java:294)
> 	at org.apache.http.impl.nio.reactor.AbstractIOReactor.execute(AbstractIOReactor.java:256)
> 	at org.apache.http.impl.nio.reactor.BaseIOReactor.execute(BaseIOReactor.java:96)
> 	at org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor$Worker.run(AbstractMultiworkerIOReactor.java:556)
> 	at java.lang.Thread.run(Thread.java:637)
> }}}

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