From kfm-devel  Thu Jun 14 09:17:11 2007
From: Richard =?utf-8?q?L=C3=A4rk=C3=A4ng?= <nouseforaname () home ! se>
Date: Thu, 14 Jun 2007 09:17:11 +0000
To: kfm-devel
Subject: XMLHttpRequest and http status code 100
Message-Id: <200706141117.11415.nouseforaname () home ! se>
X-MARC-Message: https://marc.info/?l=kfm-devel&m=118181270015930
MIME-Version: 1
Content-Type: multipart/mixed; boundary="--Boundary-00=_XeQcGOECc3lAnqT"

--Boundary-00=_XeQcGOECc3lAnqT
Content-Type: text/plain;
  charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline

Hi!

When trying to use the site www.vasttrafik.se, and spoofing as either MSIE =
or=20
=46irefox I get the error:
"Sys.WebForms.PageRequestManagerServerErrorException: An unknown error=20
occurred while processing the request on the server. The status code return=
ed=20
from the server was: 100"
when clicking on for example one of the links below "Trafikf=C3=B6r=C3=A4nd=
ringar".

The problem seems to be that the status for an XMLHttpRequest is 100, when =
it=20
is expected to be 200. I don't know that much about http, but if I understa=
nd=20
things correctly, the response with status code 100 should just be ignored=
=20
and the next one should be used instead.

So the attached patch does that, and makes the site mentioned above work fo=
r=20
me again. Does the patch look OK?

/Richard L=C3=A4rk=C3=A4ng

--Boundary-00=_XeQcGOECc3lAnqT
Content-Type: text/x-diff;
  charset="utf-8";
  name="xmlhttprequest.patch"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
	filename="xmlhttprequest.patch"

Index: ecma/xmlhttprequest.cpp
===================================================================
--- ecma/xmlhttprequest.cpp	(revision 675286)
+++ ecma/xmlhttprequest.cpp	(arbetskopia)
@@ -548,6 +548,15 @@ static Value httpStatus(const QString& r
 
   int endOfLine = response.find("\n");
   QString firstLine = (endOfLine == -1) ? response : response.left(endOfLine);
+
+  if (firstLine.find("100 Continue") != -1)
+  {
+    if (endOfLine != -1)
+      return httpStatus(response.mid(endOfLine+1));
+    else
+      return Undefined();
+  }
+
   int codeStart = firstLine.find(" ");
   int codeEnd = firstLine.find(" ", codeStart + 1);
 

--Boundary-00=_XeQcGOECc3lAnqT--