filter attachments by filename extensions

[tkikuchi]

Mailman's filter attachment feature is useful but many
MUA's are sending same application files with different
content-type: eg. application/pdf or
application/octet-stream for PDF. Viruses also fake the
content-type for executables as audio etc. So, we need
to filter attachments by filename extensions by which
windows assumes their associated applications.
This patch enables list owners to define filename
extensions to filter (block) or pass the attached file.

After applying patch, configure and make install, you
may have to 'bin/update -f' to force the list attribute
upgrading. You may also have to check the config.pck
schema version (DATA_FILE_VERSION) in Version.py and
make sure the number is incremented. (90 -> 91) The old
number may be different if you have applied other patches.

[tkikuchi (tkikuchi-users)]

The file extfilt.patch was added: extfilt.patch

[tkikuchi (tkikuchi-users)]

Logged In: YES
user_id=67709

Merged in CVS
MimeDel.py 2.5.2.1
ContentFilter.py revision: 2.6.2.1