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Message |
Guest
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 Posted:
Fri Sep 30, 2005 11:01 pm Post subject:
MSXML4 ServerXMLHTTP.4.0 encoding issue with responseText |
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I'm using WebDAV to get message properties from MS Exchange server
(using ServerXMLHTTP object in MSXML, the sample code follows.)
If there are some non-ascii chars in message body, for example, 'ß',
the encoding of ServerXMLHTTP.4.0 responseText is incorrect (not in
Unicode, it just like double-byte UTF-8 chars): "C3 00" "9F
00".
However, if I use ServerXMLHTTP.3.0, XMLHTTP.4.0, or XMLHTTP.3.0, the
responseText are all in correct Unicode: "DF 00"
Is this a bug in MSXML4 ServerXMLHTTP.4.0 ? or some is there a
workaround?
Thanks!
'''''''''''''''''''' BEGIN OF SAMPLE CODE
sSourceUrl = "http://server/exchange/exadmin/Inbox/unicode.EML"
sXML = "<?xml version='1.0' encoding='utf-8' ?>"
sXML = sXML & "<d:propfind xmlns:d='DAV:'
xmlns:httpmail='urn:schemas:httpmail:' >"
sXML = sXML & "<d:prop><httpmail:textdescription/></d:prop>"
sXML = sXML & "</d:propfind>"
'WScript.echo "XML: [" & sXML & "]"
'Set xmlhttp = CreateObject("Msxml2.XMLHTTP.3.0")
'Set xmlhttp = CreateObject("Msxml2.XMLHTTP.4.0")
'Set xmlhttp = CreateObject("Msxml2.ServerXMLHTTP.3.0")
Set xmlhttp = CreateObject("Msxml2.ServerXMLHTTP.4.0")
xmlhttp.open "PROPFIND", sSourceUrl, false, "domain\exadmin", "exadmin"
xmlhttp.setRequestHeader "Translate", "f"
xmlhttp.setRequestHeader "Content-type", "text/xml"
xmlhttp.setRequestHeader "Depth", "0"
xmlhttp.send(sXML)
' Return codes, etc.
if (xmlhttp.status > 299) Then
WScript.echo "Error " & xmlhttp.status & ": " & xmlhttp.responseText
end If
WScript.echo "HTTP response headers --> " &
xmlhttp.getAllResponseHeaders()
WScript.echo "XML returned --> " & xmlhttp.responseText
Set xmlhttp = nothing
Set adoStream = nothing
''''''''''''''''''''' END OF SAMPLE CODE
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Martin Honnen
Guest
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| Posted:
Fri Sep 30, 2005 11:23 pm Post subject:
Re: MSXML4 ServerXMLHTTP.4.0 encoding issue with responseTex |
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wzhao2000@gmail.com wrote:
| Quote: | If there are some non-ascii chars in message body, for example, 'ß',
the encoding of ServerXMLHTTP.4.0 responseText is incorrect (not in
Unicode, it just like double-byte UTF-8 chars): "C3 00" "9F
00".
|
But responseText is nothing that XMLHTTP _encodes_, instead it is a
string that XMLHTTP _decodes_ from the response body. The message body
does not contain any characters strictly, it is just a sequence of bytes
and you only get characters if you try to decode the byte sequence into
a sequence of characters.
| Quote: | However, if I use ServerXMLHTTP.3.0, XMLHTTP.4.0, or XMLHTTP.3.0, the
responseText are all in correct Unicode: "DF 00"
WScript.echo "HTTP response headers --> " &
xmlhttp.getAllResponseHeaders()
WScript.echo "XML returned --> " & xmlhttp.responseText
|
So where do you check or try to check which bytes are in the response?
What exactly are the response headers? Do the response headers have a
Content-Type header, is a charset given in the headers?
And if you are looking for XML as that "XML returned" suggests why don't
you use responseXML then instead of responseText? responseXML and the
XML parser is much better at decoding than the simple approach
responseText takes.
--
Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/ |
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Guest
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| Posted:
Sat Oct 01, 2005 12:58 am Post subject:
Re: MSXML4 ServerXMLHTTP.4.0 encoding issue with responseTex |
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forgot to mention how I checked returned char: if the char is correct,
it's displayed as " ß " in the WScript.Echo message box, otherwise
it's displayed as " ß "
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Guest
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| Posted:
Sat Oct 01, 2005 12:58 am Post subject:
Re: MSXML4 ServerXMLHTTP.4.0 encoding issue with responseTex |
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Actually I'm using the responseXML property in real code to get the
node value of textdescription field. The issue is the same there: the
text is not in Unicode. (I used responseText in the sample is just for
illustration purpose.)
BTW, the content-type returned is "text/xml". Also, it works fine with
other objects, like ServerXMLHTTP.3.0, XMLHTTP.4.0, or XMLHTTP.3.0, .... |
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Martin Honnen
Guest
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| Posted:
Sat Oct 01, 2005 4:58 pm Post subject:
Re: MSXML4 ServerXMLHTTP.4.0 encoding issue with responseTex |
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wzhao2000@gmail.com wrote:
| Quote: | forgot to mention how I checked returned char: if the char is correct,
it's displayed as " ß " in the WScript.Echo message box, otherwise
it's displayed as " ß "
|
I have created a test XML document that is UTF-16 encoded and uploaded
it here:
<http://home.arcor.de/martin.honnen/xml/test2005100101.xml>
Then I have written the following JScript program to be executed with
WSH (e.g. cscript):
function checkXml (url) {
var prefix = 'Msxml2';
var versions = [ '3.0', '4.0', '5.0', '6.0'];
var ids = ['XMLHTTP', 'ServerXMLHTTP'];
var result = [];
for (var i = 0; i < versions.length; i++) {
var version = versions[i];
for (var j = 0; j < ids.length; j++) {
var id = ids[j];
var programId = prefix + '.' + id + '.' + version;
result.push('Requesting ' + url + ' with ' + programId + ':');
try {
var httpRequest = new ActiveXObject(programId);
httpRequest.open('GET', url, false);
httpRequest.send(null);
result.push('HTTP status code: ' + httpRequest.status + ' ' +
httpRequest.statusText);
if (httpRequest.responseXML &&
httpRequest.responseXML.parseError.errorCode == 0) {
result.push('responseXML serialized:');
result.push(httpRequest.responseXML.xml);
}
}
catch (e) {
result.push('Error ' + e.message + ' with ' + programId);
}
result.push('\r\n');
}
}
return result.join('\r\n');
}
function main () {
for (var i = 0; i < WScript.Arguments.length; i++) {
WScript.Echo(checkXml(WScript.Arguments(i)));
}
}
main();
When I run that here from the command line as passing in the above URL
as an argument I get the following flawless results for MSXML 3, 4, 5, 6:
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.XMLHTTP.3.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.ServerXMLHTTP.3.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.XMLHTTP.4.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.ServerXMLHTTP.4.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.XMLHTTP.5.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.ServerXMLHTTP.5.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.XMLHTTP.6.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
Requesting http://home.arcor.de/martin.honnen/xml/test2005100101.xml
with Msxml2.ServerXMLHTTP.6.0:
HTTP status code: 200 OK
responseXML serialized:
<?xml version="1.0" encoding="UTF-16"?>
<root>
<text xml:lang="de">ß</text>
<text xml:lang="de">ä</text>
</root>
So at least with responseXML I can't reproduce any problem. Do you get
any different result for the sample XML document with your version of
MSXML 4?
If not can you post a URL to an XML document that causes the problem
with MSXML 4 ServerXMLHTTP?
Note the followup-to is set to microsoft.public.xml only.
--
Martin Honnen --- MVP XML
http://JavaScript.FAQTs.com/ |
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