import base64
import calendar
import datetime
import hashlib
import hmac
import os
import random
import time
from urllib import parse

import requests


def get_md5_01(file_path):
    md5 = None
    if os.path.isfile(file_path):
        f = open(file_path, 'rb')
        md5_obj = hashlib.md5()
        md5_obj.update(f.read())
        hash_code = md5_obj.hexdigest()
        f.close()
        md5 = str(hash_code).lower()
    return md5


def createTransaction(HTTPMethod, filePath):
    fileName = filePath.split('/')[-1]

    for Version in getBetweenDay('2017-01-01'):
        print("Version={Version}".format(Version=Version))
        param = {
            "Format": "JSON",
            "Version": Version,
            "AccessKeyId": "LTAIeS8aBuPBZxV2",
            "SignatureMethod": "HMAC-SHA1",
            "Timestamp": int(time.time()),
            "SignatureVersion": "1.0",
            "SignatureNonce": random.randint(0, 9),
            "Action": "CreateTransaction",
            "Ext": fileName[-fileName[::-1].index('.'):],
            "Md5": get_md5_01(filePath),
            "Size": os.path.getsize(filePath)
        }
        AccessKeySecret = b'hyPeTaDQBQs6jetYcqY0BUdpacXTH3'
        canonicalQueryString = ''
        for i in sorted(param.items(), key=lambda d: d[0]):
            canonicalQueryString += '&' + i[0] + parse.quote('=' + str(i[1]))
        # print(canonicalQueryString[1:])

        strUrlEncoding = HTTPMethod + '&%2F&' + canonicalQueryString[1:]
        print(strUrlEncoding)
        stringToSign = base64.b64encode(hmac.new(AccessKeySecret, strUrlEncoding.encode('UTF-8'), 'sha1').digest())

        server = 'https://cloudphoto.cn-shanghai.aliyuncs.com'
        url = server + "?" + canonicalQueryString[1:] + '&Signature=' + stringToSign.decode('utf-8').replace('+','%20').replace('/','%2F').replace('=','%3D')
        print(url)
        result = requests.get(url)

        if result.status_code == 200:
            break
        else:
            print(result.content)
            time.sleep(1)


def getBetweenDay(begin_date):
    date_list = []
    begin_date = datetime.datetime.strptime(begin_date, "%Y-%m-%d")
    end_date = datetime.datetime.strptime(time.strftime('%Y-%m-%d', time.localtime(time.time())), "%Y-%m-%d")
    while begin_date <= end_date:
        date_str = begin_date.strftime("%Y-%m-%d")
        date_list.append(date_str)
        begin_date += datetime.timedelta(days=1)
    return date_list


if __name__ == '__main__':
    createTransaction("GET", "C:/Users/10295/Desktop/灵梦.png")
    # print(getBetweenDay('2017-01-01'))