This feature request fixes a problem when the ColdFusion server returns an empty string when calling the function GetTempDirectory (). This is a known problem. Restarting the server will fix it, but it's also a good idea to allow the developer to specify a temp directory. I ran into this problem when integrating FCKEditor 2.5 into my application framework, and I could not upload files. After some debugging, I found that my development CF server was not returning a valid temp directory.
In filemanager\browser\default\connectors\cfm\config.cfm, add a new temp file setting that can be set by the developer:
// Set a temporary directory
Config.TempDirectory = GetTempDirectory ();
In filemanager\browser\default\connectors\cfm\cf_commands.cfm, test to see if the specified temp directory is valid. If not throw an error.
<cfset fsTempDir = REQUEST.Config.TempDirectory>
<cfif NOT DirectoryExists (fsTempDir)>
<cfthrow message="Invalid temporary directory: #fsTempDir#">
</cfif>
