#1842: Filename escape/encode problem causes XML error in file browser
---------------------------+------------------------------------------------
Reporter: Dynom | Owner: wwalc
Type: Bug | Status: assigned
Priority: Normal | Milestone:
Component: File Browser | Version: FCKeditor 2.5.1
Resolution: | Keywords: Confirmed
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Comment (by wwalc):
This issue has been also described in #1036.
The main problem is that in some of the html files used by file browser
utf-8 headers were missing:
{{{
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
}}}
Because of that, IE sent file names in its internal system encoding,
whilst everyting was working fine in Firefox (used utf-8 as a defult to
send names of uploaded files). Acutally FCKeditor could work fine even in
IE, if utf-8 encoding was forced by apache configuration.
Anyway, utf-8 headers must be set in all pages which are responsible for
managing files. This will fix problems with uploading files in IE in the
future.
However, we have still unresolveable problem with files that have been
already uploaded (...or have been uploaded by poor FTP client). Their name
may be an invalid utf-8 string, which breaks XML responses in IE (Firefox
ignores that problem). To fix that, ConvertToXmlAttribute function on *nix
systems must check whether file name is a valid utf string: if not, encode
it *somehow*. We have no information what was the initial encoding that IE
had used, so we could use utf8_encode which is available in core in all
PHP versions. It encodes string assuming that given string is encoded in
ISO-8859-1.
Unfortunately it means that if someone uploaded file in IE and his Windows
used different charset than ISO-8859-1, his file will be displayed, but
its name will be wrong (due to wrong encoding used in conversion). But
this is still a lot better that being unable to display the list of files.
To completely fix this issue, we would have to be able to sent non-utf
file names in XML responses, so file names would have to be sent in
rawurlencoded format.
--
Ticket URL: <http://dev.fckeditor.net/ticket/1842#comment:5>
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