def filter_iter(msg):
html_part, cidmap = None, {}
state = 0
for part in mail_walk(msg):
future = False
typ = part.get_content_type()
fn = part.get_filename(None) if typ.startswith('image/') else None
LOG.debug("filter_iter(%s [%s])", typ, fn)
if 0 == state:
if 'text/html' == typ:
LOG.debug('part=(%s) %r mp?%s cte=%s', type(part),
part.get_content_type(), part.is_multipart(),
part['Content-Transfer-Encoding'])
html_part = decode_payload(part, debork=True)
state += 1
future = True
elif 1 == state:
if typ.startswith('image/'):
if ('Content-ID' in part and 'Content-Disposition' in part
and part['Content-Disposition'].startswith('inline;')):
cidmap[part['Content-ID'].strip('<>')] = part
# LOG.debug('part(content-id)=%r', part.items())
future = True
else:
state = 0
elif 'text/html' == typ:
yield (True, (html_part, cidmap))
html_part = decode_payload(part, debork=True)
cidmap = {}
future = True
else:
state = 0
# LOG.debug('future? %s', future)
if not future:
yield (False, part)
if html_part:
yield (True, (html_part, cidmap))
