process-axfr.py 文件源码

def load_file(csvfile):
    with open(csvfile, "r") as handle:
        data = handle.read()
        names = []
        for match in AXFR_RE.finditer(data, re.MULTILINE):
            names.append((match.group(1).strip('.'), match.group(3)))
        suffix = os.path.commonprefix([X[0][::-1] for X in names])[::-1]
        names = filter(lambda X: X[0],
                       [(X[0].replace(suffix, '').strip('.').lower(), X[1])
                        for X in names])
        for name, rectype in set(names):
            if not name or name == '*':  # Ignore single wildcard or empty
                continue
            if name[:2] == '*.':  # Strip wildcard off beginning
                name = name[2:]
            subnames = name.split('.')
            for subname in iter_names(subnames):
                yield subname, rectype