"""Discard all held posts and subscription requests from
a specific address.

Save as bin/discard_address.py

Run via

   bin/withlist -a -r discard_address -- <address_to_discard>

where <address_to_discard> is the actual email address whose posts
and subscribe requests are to be discarded.

Discards will be logged to Mailman's vette log.
"""

from Mailman import mm_cfg

def discard_address(mlist, address):
    if not mlist.Locked():
        mlist.Lock()
    heldmsgs = mlist.GetHeldMessageIds()
    pendingsubs = mlist.GetSubscriptionIds()
    changed = False
    for id in heldmsgs + pendingsubs:
        if mlist.GetRecord(id)[1].lower() <> address.lower():
            continue
        mlist.HandleRequest(id, mm_cfg.DISCARD, 'Discarded by script')
        changed = True
    if changed:
        mlist.Save()
    mlist.Unlock()