'Get the posted information
:param environ: A dictionary with environment variables'

def _get_post(self, environ):

    body = ''
    try:
        length = int(environ.get('CONTENT_LENGTH', '0'))
    except ValueError:
        length = 0
    if (length != 0):
        body = environ['wsgi.input'].read(length)
        environ['s2repoze.body'] = body
        environ['wsgi.input'] = StringIO(body)
    post = parse_qs(body)
    logger.debug(('identify    post:    %s' % (post,)))
    return post
