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# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# coding=utf-8

import hashlib
import base64
import socket
import uuid
import time
import sys

from aliyunsdkcore.vendored.six.moves.urllib.parse import quote
from aliyunsdkcore.compat import ensure_bytes, ensure_string

TIME_ZONE = "GMT"
FORMAT_ISO_8601 = "%Y-%m-%dT%H:%M:%SZ"
FORMAT_RFC_2616 = "%a, %d %b %Y %X GMT"


def get_uuid():
    name = socket.gethostname() + str(uuid.uuid1())
    namespace = uuid.NAMESPACE_URL
    return str(uuid.uuid5(namespace, name))


def get_iso_8061_date():
    return time.strftime(FORMAT_ISO_8601, time.gmtime())


def get_rfc_2616_date():
    return time.strftime(FORMAT_RFC_2616, time.gmtime())


def md5_sum(content):
    content_bytes = ensure_bytes(content)
    md5_bytes = hashlib.md5(content_bytes).digest()
    return ensure_string(base64.standard_b64encode(md5_bytes))