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<TITLE> [Mono-bugs] [Bug 59653][Blo] New - Beta 2 Chunked-Encoding critical bug.
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<H1>[Mono-bugs] [Bug 59653][Blo] New - Beta 2 Chunked-Encoding critical bug.
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<B>bugzilla-daemon@bugzilla.ximian.com
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<A HREF="mailto:bugzilla-daemon%40bugzilla.ximian.com"
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TITLE="[Mono-bugs] [Bug 59653][Blo] New - Beta 2 Chunked-Encoding critical bug.">bugzilla-daemon@bugzilla.ximian.com
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<I>Sun, 6 Jun 2004 10:37:19 -0400 (EDT)</I>
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<PRE>Please do not reply to this email- if you want to comment on the bug, go to the
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URL shown below and enter your comments there.
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Changed by <A HREF="mailto:davidandrewtaylor@hotmail.com.">davidandrewtaylor@hotmail.com.</A>
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<A HREF="http://bugzilla.ximian.com/show_bug.cgi?id=59653">http://bugzilla.ximian.com/show_bug.cgi?id=59653</A>
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--- shadow/59653 2004-06-06 10:37:19.000000000 -0400
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+++ shadow/59653.tmp.27482 2004-06-06 10:37:19.000000000 -0400
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@@ -0,0 +1,53 @@
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+Bug#: 59653
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+Product: Mono: Class Libraries
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+Version: unspecified
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+OS: Red Hat 9.0
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+OS Details:
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+Status: NEW
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+Resolution:
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+Severity: 008 One day
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+Priority: Blocker
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+Component: System
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+AssignedTo: <A HREF="mailto:mono-bugs@ximian.com">mono-bugs@ximian.com</A>
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+ReportedBy: <A HREF="mailto:davidandrewtaylor@hotmail.com">davidandrewtaylor@hotmail.com</A>
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+QAContact: <A HREF="mailto:mono-bugs@ximian.com">mono-bugs@ximian.com</A>
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+TargetMilestone: ---
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+URL:
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+Cc:
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+Summary: Beta 2 Chunked-Encoding critical bug.
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+
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+There is a nasty bug in MONO (I tested in Beta 2) when reading from a
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+Http Stream that is chunked-encoded. I believe the bug(s) are in the
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+following 3 classes:
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+ChunkStream.cs
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+WebConnectionStream.cs
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+WebConnection.cs
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+
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+Please run the testcase test1.cs on MS.NET to see the correct (and
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+obviously expected) output which just downloads a WSDL file and prints
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+out the first few bytes (and characters). Then try the test on MONO to
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+see the very weird and incorrect output. The second part of the test
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+demonstrates a freezing problem on MONO when I enable KeepAlives (I have
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+no idea why?).
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+
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+This is an intermittent bug, so try running the test a few times as the
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+output seems to depend on timing (how much of the web servers response is
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+sitting in the MONO client's buffer).
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+
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+Clue 1: The only way I have been able to get 100% reliable results is by
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+editing the WebConnectionStream.Read method and between the last two
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+lines (ReginRead and EndRead - for the asynchronous read) I inserted
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+a "ReadAll()" internal method call. I am pretty sure this is pulling all
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+the response stream into the MONO client's buffer thus the problem never
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+occurs. Of course, this is not a fix, and I just mention it to help you
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+understand the bug.
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+
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+Clue 2: I also tried to find out what was happening in the
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+WebConnection.Read method. I noted it calls "nstream.Read" and what is
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+strange is that even though that method might be called as "int result =
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+nstream.Read(buffer, 0, 4)", result will often be set to 0 even though
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+bytes have been copied into the buffer. Thus it would appear erroneous
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+bytes were copied into the buffer but the method returned that 0 bytes
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+were copied. Obviously this is a clue as to the error.
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+
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+Clue 3: This only happens when the server uses Chunked-Encoding.
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</PRE>
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