Python调用示例

#-*- coding: utf8 -*-
import requests
import json
import hashlib
import base64
import hmac
import datetime
import uuid

METHOD_GET = 'GET'
METHOD_POST = 'POST'

#官网accessKey
AK = '3d98d123d633xxxxxxxxxxx5a60d4bb3'
#官网securityKey
SK = '173615ae4177xxxxxxxxxxxd17b1c3ed'

def hmac_sha256(secret, data):
       secret = bytearray(secret)
       data = bytearray(data)
       return hmac.new(secret, data, digestmod=hashlib.sha256).digest()

def base64_of_hmac(data):
       return base64.b64encode(data)

def get_request_uuid():
       return str(uuid.uuid1())

def get_sorted_str(data):
       """
       鉴权用的参数整理
       :param data: dict 需要整理的参数
       :return: str
       """
        sorted_data = sorted(data.items(), key=lambda item: item[0])
        str_list = map(lambda x_y: '%s=%s' % (x_y[0], x_y[1]), sorted_data)
        return '&'.join(str_list)

def build_sign(query_params, body_params, eop_date, request_uuid):
        """
        计算鉴权字段
        :param query_params: dict get请求中的参数
        :param body_params: dict post请求中的参数
        :param eop_date: str 请求时间，格式为：'%Y%m%dT%H%M%SZ'
        :return: str
        """
       #body_str = json.dumps(body_params) if body_params else ''
        body_str = json.dumps(body_params)
        body_digest = hashlib.sha256(body_str.encode('utf-8')).hexdigest()
       #请求头中必要的两个参数
       header_str = 'ctyun-eop-request-id:%s\neop-date:%s\n' % (request_uuid,       eop_date)
       #url中的参数，或get参数
       query_str = get_sorted_str(query_params)

​       signature_str = '%s\n%s\n%s' % (header_str, query_str, body_digest)

​       print_log(repr('signature_str is: %s' % signature_str))
​       sign_date = eop_date.split('T')[0]

​      计算鉴权密钥
​       k_time = hmac_sha256(SK, eop_date)
​       k_ak = hmac_sha256(k_time, AK)
​       k_date = hmac_sha256(k_ak, sign_date)

​       signature_base64 = base64_of_hmac(hmac_sha256(k_date, signature_str))

​       构建请求头的鉴权字段值

​        sign_header = '%s Headers=ctyun-eop-request-id;eop-date Signature=%s' % (AK, signature_base64)
​        return sign_header

def get_sign_headers(query_params, body):
       """
       获取鉴权用的请求头参数
       :param query_params: dict get请求中的参数
       :param body: dict post请求中的参数
       :return:
       """
       now = datetime.datetime.now()
       eop_date = datetime.datetime.strftime(now, '%Y%m%dT%H%M%SZ')
       request_uuid = get_request_uuid()
       headers = {  # 三个鉴权用的参数
           'eop-date': eop_date,
           'ctyun-eop-request-id': request_uuid,
           'Eop-Authorization': build_sign(query_params=query_params,    body_params=body, eop_date=eop_date,
                                        request_uuid=request_uuid),
    }
       return headers

def get(url, params=None, header_params=None, get_body=None):
       return execute(url, method=METHOD_GET, params=params,  header_params=header_params, get_body=get_body)

def post(url, params=None, header_params=None):
       return execute(url, method=METHOD_POST, params=params, header_params=header_params)

def execute(url, method, params=None, header_params=None, get_body=None):
       get_body = get_body or {}
       params = params or {}
       header_params = header_params or {}
       query_params, body = (params, get_body) if method == METHOD_GET else ({}, params)
       headers = get_sign_headers(query_params, body)
       headers.update(header_params)

   print_log(u'url: %s' % url)
   print_log(u'请求方式: %s' % method)
   print_log(u'请求头: %s' % headers)
   print_log(u'请求参数: %s' % params)

   if method == METHOD_GET:
       res = requests.get(url, params=params, headers=headers, verify=False,    json=get_body)
   else:
       res = requests.post(url, json=params, headers=headers, verify=False)

   print_log(u'返回状态码: %s' % res.status_code)
   print_log(u'返回: %s' % res.text)
   return res

def print_log(log_info):
       now = datetime.datetime.now()
       log_info = u'[%s]: %s' % (str(now), log_info)
       print log_info

#操作类示例
post("https://ctcbr-global.ctapi.ctyun.cn/v4/backup/open-service-backup",
     params={
         "regionID": "41f64827xxxxxxxxxffa3a5deb5d15d"
     })

#查询类示例
get("https://ctcbr-global.ctapi.ctyun.cn/v4/backup/query-storage-backup",
     params={
        "regionID": "81f772xxxxxxxxxxx307d5b",
        "backupStorageID": "73f321ea-xxxxxxxx-a8bc-005056898fe0"
    })