# -*- encoding: utf-8 -*-
from Crypto.Cipher import AES
from Crypto.PublicKey import RSA
from Crypto.Cipher import PKCS1_v1_5 as Cipher_pkcsl_v1_5
from binascii import b2a_hex, a2b_hex
import base64
import urllib.parse
import requests
import hashlib
import random
import time
import json
BS = AES.block_size
mode = AES.MODE_CBC
apiUrl = '*******'
appId = '*******'
encry_model = 'CBC'
appSecret = ‘*******’
serverName = '*******'
methodName = '*******'
parameters = {}
key = '0011223344556677'
public_key = '''-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDGCJ0Yvs7keKW2lNlRHMoEFCH3
t4jCEIYNSN8nx+AQTsBj39hmRJ1j6mgjbuo7UeXvZUq+1Vm457DvPcpuCZgZzHin
D1jAx8M/aHar2oOJzxWjMGo+4EVuQnleeziezretVEMxAi8KFdtd28VZ2qBqasaL
4GSP6z3qfOJ7an0OUQIDAQAB
-----END PUBLIC KEY-----
'''
def getTimeStamp():#生成时间戳
now = time.strftime("%Y%m%d%H%M%S", time.localtime())
return now
def randomNonce():
L = []
M = []
for i in range(10):
L.append(random.randint(0, 9))
if len(L) >= 10:
break
for d in L:
M.append(str(d))
S = '' .join(M)
return S
def pad(s): return s + (BS-len(s))*'\0' # 补全key
def pad_txt(s): return s + (BS - len(s) % BS) * \
chr(BS - len(s) % BS) # 補全parameter
def aESEncrypt(param):#aes加密
iv = '0102030405060708'#偏移量
cipher = AES.new(pad(key).encode('utf-8'), mode, iv.encode('utf-8'))
parameter_string = cipher.encrypt(pad_txt(param).encode('utf-8'))
parameter_string1 = base64.b64encode(parameter_string)
parameter_string2 = str(parameter_string1)
return parameter_string2
def rSAEncrypt(key, publickey):
rsakey = RSA.import_key(publickey)
cipher = Cipher_pkcsl_v1_5.new(rsakey)
cipher_text1 = base64.b64encode(cipher.encrypt(key.encode('utf-8')))
encry_key = str(cipher_text1)
return encry_key
def getSignature(params, appSecret):#计算签名
signature = ''
query = ''
temps = []
for key in params.keys():
temps.append(key)
temps.sort()
for temp in temps:
query += '&'+temp+'='+urllib.parse.quote(params[temp],safe='')
query2 = query[1:]+'&'+appSecret
sha = hashlib.sha1(query2.encode('utf-8'))
signature = sha.hexdigest()
return signature
def getApiParams(appId,serverName,methodName,parameters,encryKey,appSecret,publicKey):#生成请求参数
cipher_encry_key_encode = rSAEncrypt(encryKey,publicKey)
cipher_parameters_encode = aESEncrypt(parameters)
params={
'app_id':appId,
'server_name':serverName,
'encry_mode':'RSA',
'encry_key':cipher_encry_key_encode.strip("b'"),
'timestamp':getTimeStamp(),
'nonce':randomNonce(),
'method':methodName,
'parameters':cipher_parameters_encode.strip("b'")
}
signature = getSignature(params,appSecret)
params['signature'] = signature
return params
def aESDecrypt(cipherText):#aes解密
key = '0011223344556677'.encode('utf-8')
iv = '0102030405060708'.encode('utf-8')
mode = AES.MODE_CBC
cryptos = AES.new(key, mode, iv)
base64_decrypted = base64.decodebytes(cipherText.encode(encoding='utf-8'))
decrypted_text = str(cryptos.decrypt(base64_decrypted),encoding='utf-8').replace('\0','')
return decrypted_text
def pyPost(key, apiUrl, appId, appSecret, publicKey, serverName, methodName, parameters):
paramString = json.dumps(parameters)
dataforpost = getApiParams(appId,serverName,methodName,paramString,key,appSecret,public_key)
res = requests.post(url=apiUrl,data=dataforpost)
res_body = json.loads(res.text)['res_body']
decoded_res_body = urllib.parse.unquote(res_body)
clear_text = aESDecrypt(decoded_res_body)
return clear_text
resp = pyPost(key,apiUrl,appId,appSecret,public_key,serverName,methodName,parameters)
print(resp)
