Uploading files to Zimbra, encoding problem

[Abak]

We are uploading files to Zimbra with FileUploadServlet.
File name contains Eastern European characters. They are visible in Linux but replaced with ? in Zimbra briefcase.
We use CFML to upload, here is the code:

<cfhttp method="POST" url="http://#host#/service/upload?fmt=raw">
 <cfhttpparam type="Cookie" name="ZM_AUTH_TOKEN" value="#token#">
 <cfhttpparam type="Header" name="Content-Type" value="multipart/form-data">
 <cfhttpparam type="FormField" name="requestId" value="#token#">
 <cfhttpparam type="File" name="file" file="#file#">
</cfhttp>

Uploading with Firefox in Linux works fine.
What could be wrong?

[dkarp]

Try adding

<cfhttpparam type="FormField" name="_charset_" value="charset-you're-using">

right after the requestId param.

[Abak]

We tried it but it doesn't help.

[dkarp]

OK. What does the HTTP form upload sent to the server look like? Because the _charset_ mechanism is exactly how the AJAX client deals with uploaded files with non-ASCII filenames...

[Abak]

It seems to be bug in our CFML engine.
But please tell us if there is any way to rename the file after it is uploaded?

[dkarp]

No, you cannot update the name of an already-uploaded attachment.