| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112 |
- # -*- coding: utf-8 -*-
- """
- wechatpy.client.jsapi
- ~~~~~~~~~~~~~~~~~~~~
- This module provides some APIs for JS SDK
- :copyright: (c) 2014 by messense.
- :license: MIT, see LICENSE for more details.
- """
- from __future__ import absolute_import, unicode_literals
- import hashlib
- import time
- from wechatpy.utils import WeChatSigner, random_string
- from wechatpy.client.api.base import BaseWeChatAPI
- class WeChatJSAPI(BaseWeChatAPI):
- def get_ticket(self, type='jsapi'):
- """
- 获取微信 JS-SDK ticket
- :return: 返回的 JSON 数据包
- """
- return self._get(
- 'ticket/getticket',
- params={'type': type}
- )
- def get_jsapi_ticket(self):
- """
- 获取微信 JS-SDK ticket
- 该方法会通过 session 对象自动缓存管理 ticket
- :return: ticket
- """
- ticket_key = '{0}_jsapi_ticket'.format(self.appid)
- expires_at_key = '{0}_jsapi_ticket_expires_at'.format(self.appid)
- ticket = self.session.get(ticket_key)
- expires_at = self.session.get(expires_at_key, 0)
- if not ticket or expires_at < int(time.time()):
- jsapi_ticket_response = self.get_ticket('jsapi')
- ticket = jsapi_ticket_response['ticket']
- expires_at = int(time.time()) + int(jsapi_ticket_response['expires_in'])
- self.session.set(ticket_key, ticket)
- self.session.set(expires_at_key, expires_at)
- return ticket
- def get_jsapi_signature(self, noncestr, ticket, timestamp, url):
- """
- 获取 JSAPI 签名
- :param noncestr: nonce string
- :param ticket: JS-SDK ticket
- :param timestamp: 时间戳
- :param url: URL
- :return: 签名
- """
- data = [
- 'noncestr={noncestr}'.format(noncestr=noncestr),
- 'jsapi_ticket={ticket}'.format(ticket=ticket),
- 'timestamp={timestamp}'.format(timestamp=timestamp),
- 'url={url}'.format(url=url),
- ]
- signer = WeChatSigner(delimiter=b'&')
- signer.add_data(*data)
- return signer.signature
- def get_jsapi_card_ticket(self):
- """
- 获取 api_ticket：是用于调用微信卡券JS API的临时票据，有效期为7200 秒，通过access_token 来获取。
- 微信文档地址：http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html
- 该方法会通过 session 对象自动缓存管理 ticket
- :return: ticket
- """
- jsapi_card_ticket_key = '{0}_jsapi_card_ticket'.format(self.appid)
- jsapi_card_ticket_expire_at_key = '{0}_jsapi_card_ticket_expires_at'.format(self.appid)
- ticket = self.session.get(jsapi_card_ticket_key)
- expires_at = self.session.get(jsapi_card_ticket_expire_at_key, 0)
- if not ticket or int(expires_at) < int(time.time()):
- ticket_response = self.get_ticket('wx_card')
- ticket = ticket_response['ticket']
- expires_at = int(time.time()) + int(ticket_response['expires_in'])
- self.session.set(jsapi_card_ticket_key, ticket)
- self.session.set(jsapi_card_ticket_expire_at_key, expires_at)
- return ticket
- def get_jsapi_card_params(self, card_ticket, card_type, **kwargs):
- """
- 参数意义见微信文档地址：http://mp.weixin.qq.com/wiki/7/aaa137b55fb2e0456bf8dd9148dd613f.html
- :param card_ticket: 用于卡券的微信 api_ticket
- :param card_type:
- :param kwargs: 非必须参数：noncestr, timestamp, code, openid, fixed_begintimestamp, outer_str
- :return: 包含调用jssdk所有所需参数的 dict
- """
- card_signature_dict = {
- 'card_type': card_type,
- 'noncestr': kwargs.get('noncestr', random_string()),
- 'api_ticket': card_ticket,
- 'appid': self.appid,
- 'timestamp': kwargs.get('timestamp', str(int(time.time()))),
- }
- list_before_sign = sorted([str(x) for x in card_signature_dict.values()])
- str_to_sign = "".join(list_before_sign).encode()
- card_signature_dict['sign'] = hashlib.sha1(str_to_sign).hexdigest()
- return card_signature_dict
|
