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<TITLE> [Mono-bugs] [Bug 77432][Maj] Changed - System.Net.HttpListener
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hangs reading past end of a non-chunked response
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<H1>[Mono-bugs] [Bug 77432][Maj] Changed - System.Net.HttpListener
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hangs reading past end of a non-chunked response</H1>
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<B>bugzilla-daemon at bugzilla.ximian.com</B>
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<A HREF="mailto:mono-bugs%40lists.ximian.com?Subject=%5BMono-bugs%5D%20%5BBug%2077432%5D%5BMaj%5D%20Changed%20-%20System.Net.HttpListener%0A%09hangs%20reading%20past%20end%20of%20a%20non-chunked%20response&In-Reply-To=bug-77432%40chernobyl.ximian.com"
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TITLE="[Mono-bugs] [Bug 77432][Maj] Changed - System.Net.HttpListener
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hangs reading past end of a non-chunked response">bugzilla-daemon at bugzilla.ximian.com
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</A><BR>
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<I>Thu Feb 2 04:52:56 EST 2006</I>
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crashes on startup
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hangs reading past end of a non-chunked response
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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="http://lists.ximian.com/mailman/listinfo/mono-bugs">horst.reiterer at mind-breeze.com.</A>
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<A HREF="http://bugzilla.ximian.com/show_bug.cgi?id=77432">http://bugzilla.ximian.com/show_bug.cgi?id=77432</A>
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--- shadow/77432 2006-02-01 11:24:49.000000000 -0500
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+++ shadow/77432.tmp.18497 2006-02-02 04:52:56.000000000 -0500
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@@ -112,6 +112,61 @@
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Pretty much anything where the second line !=0.
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MS.NET gives:
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read: 100
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read: 62
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+
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+------- Additional Comments From <A HREF="http://lists.ximian.com/mailman/listinfo/mono-bugs">horst.reiterer at mind-breeze.com</A> 2006-02-02 04:52 -------
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+IMHO, there are two issues here (in respect to the original problem
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+reported), the first being that HttpWebRequest sends a header "Expect:
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+100-continue" even if the content length is zero. Of course, this is
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+useless because the Expect header is only useful for eliminiating
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+redundant payload transmissions. The following patch fixes this issue
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+(MS CLR compatible):
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+
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+--- mono-1.1.13.2/mcs/class/System/System.Net/HttpWebRequest.cs
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+2005-11-17 17:07:17.000000000 -0500
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++++ mono-1.1.13.2-dev/mcs/class/System/System.Net/HttpWebRequest.cs
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+2006-02-01 15:02:46.000000000 -0500
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+@@ -853,7 +853,8 @@
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+ {
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+ bool continue100 = false;
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+ if (contentLength != -1) {
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+- continue100 = true;
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++ if (contentLength > 0)
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++ continue100 = true;
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+ webHeaders.SetInternal
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+("Content-Length", contentLength.ToString ());
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+ webHeaders.RemoveInternal
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+("Transfer-Encoding");
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+ } else if (sendChunked) {
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+
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+Second, the InputStream property of System.Net.HttpListenerRequest
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+returns a Stream reference although the payload of the request is zero.
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+According to MSDN, "this property returns Null if no data is sent with
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+the request.". The following patch fixes that:
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+
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+--- mono-1.1.13.2/mcs/class/System/System.Net/HttpListenerRequest.cs
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+ 2005-11-28 16:03:20.000000000 -0500
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++++
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+mono-1.1.13.2-dev/mcs/class/System/System.Net/HttpListenerRequest.cs
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+ 2006-02-02 04:37:49.000000000 -0500
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+@@ -165,7 +165,10 @@
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+ return;
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+ }
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+
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+- input_stream =
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+context.Connection.GetRequestStream (is_chunked);
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++ if (is_chunked || (cl_set && content_length >
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+0)) {
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++ input_stream =
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+context.Connection.GetRequestStream (is_chunked);
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++ }
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++
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+ if (Headers ["Expect"] == "100-continue") {
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+ ResponseStream output =
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+context.Connection.GetResponseStream ();
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+ output.InternalWrite (_100continue, 0,
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+_100continue.Length);
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+
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+The bug related to chunked encoding represents a separate issue.
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</PRE>
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