In-App Purchase

iap.py

import requests
import json
from transactionTable import TransactionTable


class IAP(object):

    @staticmethod
    def url(debug=True):
        if debug:
            return "https://sandbox.itunes.apple.com/verifyReceipt"
        else:
            return "https://buy.itunes.apple.com/verifyReceipt"

    @staticmethod
    def validate(data):
        pass

    @staticmethod
    def validateWithAppStore(data):
        resp = IAP.sendReceiptToApppStore(data)
        if not resp:
            return None

        # response body
        # https://developer.apple.com/documentation/appstorereceipts/responsebody
        if resp['status'] == 0:
            pass

    @staticmethod
    def verifyReceipt(receipt):
        """
        检验从app store 返回的receipt data
        https://developer.apple.com/documentation/appstorereceipts/responsebody/receipt
        https://developer.apple.com/documentation/appstorereceipts/responsebody/receipt/in_app
        https://developer.apple.com/library/archive/releasenotes/General/ValidateAppStoreReceipt/Chapters/ReceiptFields.html#//apple_ref/doc/uid/TP40010573-CH106-SW10
        """
        ret = {'result': False}
        try:
            adamId = receipt["app_item_id"]
            bundleId = receipt["bundle_id"]
            product_id = receipt["in-app"]["product_id"]
            transaction_id = receipt["in-app"]["transaction_id"]

            # 验证Bundle Id是否正确
            if bundleId != 'com.YezhStudio.Hermes':
                pass
                return ret

            # 验证production id是否正确
            products = []
            if product_id not in products:
                pass
                return ret

            # 验证此订单是否重复处理
            table = TransactionTable()
            e = table.exsit(transaction_id)
            if not e:
                table.insert(transaction_id, receipt)
            else:
                receipt = e[1]

            # 票据验证成功
            # TODO: 返回结果

        except Exception as err:
            ret['error'] = err
        finally:
            return ret

    @staticmethod
    def sendReceiptToApppStore(receipt, password=None, exclude=False):
        # request body
        # https://developer.apple.com/documentation/appstorereceipts/requestbody?language=objc
        data = {
            "receipt-data": receipt
        }

        if password:
            data["password"] = password

        if exclude:
            data["exclude-old-transactions"] = True

        resp = requests.post(IAP.url, json=json.dumps(data))
        return resp.json()