internal package Foswiki::Plugins::BatchUploadPlugin
Store callback called before the attachment is further processed.
Preliminary attempt to tackle nested zips - does not actually work yet. Each time we fall through beforeUploadHandler to the actual attaching, other
attachments get lost.
Checks if a file is a zip file.
Returns true if the file has a zip extension, false if not.
Return: 1 if successful, 0 if not successful.
changed to work around a race condition where a symlink could be made in the
temp directory pointing to a file writable by the CGI and then a zip uploaded
with that filename, also solves the problem if two people are uploading zips
with some identical filenames.
Open a zip and perform a sanity check on it.
Returns the opened zip object (to be passed to doUnzip) on success,
a string saying the reason for failure.