├── README.md
├── access_token.json
├── jsapi_ticket.json
└── wechat_sign.py


/README.md:
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1 | # wechat-python-jssdk
2 | 微信js接口后台签名sdk，python实现
3 | 


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/access_token.json:
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1 | {"access_token": "LWsIEo-Lx7bV189D2Jl4YJJ8kplrsuznCyUymbcNi2VIgd9RvLVHqIIbK3n5ksZgJ_ECjKNen0hXhspuEQJMur1LwDjvZR_dscvceBgUoCA", "expire_time": 1429678145}


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/jsapi_ticket.json:
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1 | {"expire_time": 1429678145, "jsapi_ticket": "sM4AOVdWfPE4DxkXGEs8VFN7IAjM1h3CsHhZtL9jvfA760P90XxLpCIcRBrFIkmBV3h5xbVuuvs7ZSRslHSwPQ"}


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/wechat_sign.py:
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 1 | # -*- coding: utf-8 -*-
 2 | import time
 3 | import random
 4 | import string
 5 | import hashlib
 6 | import json
 7 | import requests
 8 | 
 9 | class Sign:
10 |     def __init__(self, appId, appSecret, url):
11 |         self.appId = appId
12 |         self.appSecret = appSecret
13 | 
14 |         self.ret = {
15 |             'nonceStr': self.__create_nonce_str(),
16 |             'jsapi_ticket': self.getJsApiTicket(),
17 |             'timestamp': self.__create_timestamp(),
18 |             'url': url
19 |         }
20 | 
21 |     def __create_nonce_str(self):
22 |         return ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(15))
23 | 
24 |     def __create_timestamp(self):
25 |         return int(time.time())
26 | 
27 |     def sign(self):
28 |         string = '&'.join(['%s=%s' % (key.lower(), self.ret[key]) for key in sorted(self.ret)])
29 |         print string
30 |         self.ret['signature'] = hashlib.sha1(string).hexdigest()
31 |         return self.ret
32 | 
33 |     def getJsApiTicket(self):
34 |         data = json.loads(open('jsapi_ticket.json').read())
35 |         jsapi_ticket = data['jsapi_ticket']
36 |         if data['expire_time'] < time.time():
37 |             url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=%s" % (getAccessToken(self.appId, self.appSecret))
38 |             response = requests.get(url)
39 |             jsapi_ticket = json.loads(response.text)['ticket']
40 |             data['jsapi_ticket'] = jsapi_ticket
41 |             data['expire_time'] = int(time.time()) + 7000
42 |             fopen = open('jsapi_ticket.json', 'w')
43 |             fopen.write(json.dumps(data))
44 |             fopen.close()
45 |         return jsapi_ticket
46 | 
47 |     def getAccessToken(self):
48 |         data = json.loads(open('access_token.json').read())
49 |         access_token = data['access_token']
50 |         if data['expire_time'] < time.time():
51 |             url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s" % (self.appId, self.appSecret)
52 |             response = requests.get(url)
53 |             access_token = json.loads(response.text)['access_token']
54 |             data['access_token'] = access_token
55 |             data['expire_time'] = int(time.time()) + 7000
56 |             fopen = open('access_token.json', 'w')
57 |             fopen.write(json.dumps(data))
58 |             fopen.close()
59 |         return access_token
60 | 
61 | 
62 | if __name__ == '__main__':
63 |     # 注意 URL 一定要动态获取，不能 hardcode
64 |     appId = 'wx9aaaaaaaaaaaaa'
65 |     appSecret = 'a******************'
66 |     sign = Sign(appId, appSecret, 'http://example.com')
67 |     print sign.sign()
68 | 


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