koubei.py

class AlipaySDK(object):
    def __init__(self, app_id, debug=False, version="2.0"):
        self.app_id = app_id
        self.debug = debug
        self.gateway = "https://openapi.alipay.com/gateway.do"
        self.version = version
        self.sign_type = "RSA"
        self.charset = "utf-8"
        self.oauth_url = "https://openauth.alipay.com/oauth2/appToAppAuth.htm"

    def sign(self, params):
        items = sorted(params.items())
        s = '&'.join(map(lambda (key, value): "%s=%s" % (key, value), items))
        origin_sign = rsa_sign(s)
        sign = base64.b64encode(origin_sign)
        return sign

    def post(self, method, app_auth_token="", **params):
        now = datetime_now()
        timestamp = datetime_to_str(now, '%Y-%m-%d %H:%M:%S')

        request_params = {
            "app_id": self.app_id,
            "method": method,
            "charset": self.charset,
            "sign_type": self.sign_type,
            "timestamp": timestamp,
            "version": self.version,
            "biz_content": json.dumps(params),
            "format": "json",
        }
        if app_auth_token:
            request_params['app_auth_token'] = app_auth_token
        sign = self.sign(request_params)
        request_params['sign'] = sign

        response = requests.post(self.gateway, params=request_params)
        json_data = json.loads(response.content)
        return json_data
      
    def create_photo(self, app_auth_token, content, suffix="jpg"):
        method = "alipay.offline.material.image.upload"

        name = md5(content)
        now = datetime_now()
        timestamp = datetime_to_str(now, '%Y-%m-%d %H:%M:%S')
        request_params = {
            "app_id": self.app_id,
            "method": method,
            "charset": self.charset,
            "sign_type": self.sign_type,
            "timestamp": timestamp,
            "version": "1.0",
            "format": "json",
            "image_type": suffix,
            "image_name": name,
        }

        if app_auth_token:
            request_params['app_auth_token'] = app_auth_token

        sign = self.sign(request_params)
        request_params['sign'] = sign

        files = {
            "image_content": ("%s.%s" % (name, suffix), content, 'text/plain')
        }

        response = requests.post(self.gateway, params=request_params, files=files)
        return json.loads(response.content)