rg1/server/HttpProxyWorld/Src/IAPCheck/IAPReceiptCheck.cs

using System;
using System.Net.Http;
using System.Net.Http.Headers;

using Sog;
using LitJson;


namespace HttpProxyWorld
{
    /*
     * 苹果返回格式
     {
    "status": 0,
    "environment": "Sandbox",
    "receipt": {
        "receipt_type": "ProductionSandbox",
        "adam_id": 0,
        "app_item_id": 0,
        "bundle_id": "com.elex.rummyfun101",
        "application_version": "58",
        "download_id": 0,
        "version_external_identifier": 0,
        "receipt_creation_date": "2017-06-13 06:27:06 Etc/GMT",
        "receipt_creation_date_ms": "1497335226000",
        "receipt_creation_date_pst": "2017-06-12 23:27:06 America/Los_Angeles",
        "request_date": "2017-06-13 06:30:05 Etc/GMT",
        "request_date_ms": "1497335405817",
        "request_date_pst": "2017-06-12 23:30:05 America/Los_Angeles",
        "original_purchase_date": "2013-08-01 07:00:00 Etc/GMT",
        "original_purchase_date_ms": "1375340400000",
        "original_purchase_date_pst": "2013-08-01 00:00:00 America/Los_Angeles",
        "original_application_version": "1.0",
        "in_app": [
            {
                "quantity": "1",
                "product_id": "iap_30",
                "transaction_id": "1000000306394868",
                "original_transaction_id": "1000000306394868",
                "purchase_date": "2017-06-12 12:56:05 Etc/GMT",
                "purchase_date_ms": "1497272165000",
                "purchase_date_pst": "2017-06-12 05:56:05 America/Los_Angeles",
                "original_purchase_date": "2017-06-12 12:56:05 Etc/GMT",
                "original_purchase_date_ms": "1497272165000",
                "original_purchase_date_pst": "2017-06-12 05:56:05 America/Los_Angeles",
                "is_trial_period": "false"
            }
        ]
    }
}
         */
    public class IAPReceiptCheck
    {

        private const string urlSandbox = "https://sandbox.itunes.apple.com/verifyReceipt";
        private const string urlProduction = "https://buy.itunes.apple.com/verifyReceipt";


        private static int CheckByUrl(string urlUse, string receipt, out string item_id, out string transaction_id)
        {
            item_id = "";
            transaction_id = "";

            try
            {
                //客户端base64了，这里不再需要
                string base64receiptdata = receipt/*Base64Encode(receipt)*/;

                JsonData requestJson = new JsonData(JsonType.Object);
                requestJson["receipt-data"] = base64receiptdata;

                if (string.IsNullOrEmpty(HttpProxyWorldServerUtils.GetServerConfig().iap_share_key) == false)
                {
                    requestJson["password"] = HttpProxyWorldServerUtils.GetServerConfig().iap_share_key;//"10e033adc8584913a3b61ef0af1c9cfc";
                }

                string strRequest = requestJson.ToJson();
                TraceLog.Debug("IAPReceiptCheck.CheckFromApple urlUse {0} ", urlUse);

                HttpContent content = new StringContent(strRequest); ;
                content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
                bool exception;

                string strRet = HttpUtils.HttpPost(urlUse, content, out exception);

                if (strRet == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple ,HttpPost return null query failed");
                    return -2;
                }

                TraceLog.Debug("IAPReceiptCheck.CheckFromApple result {0}", strRet);

                JsonData result = JsonMapper.ToObject(strRet);
                if (result == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result not valid");
                    return -3;
                }

                

                JsonData status = result["status"];
                if (status == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result status error");
                    return -4;
                }


                int iStatus = -999;
                bool bSuccess = int.TryParse(status.ToString(), out iStatus);
                if(bSuccess == false)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result status error 2");
                    return -4;
                }

                if(iStatus != 0)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result status {0}", iStatus);
                    return iStatus;
                }


                JsonData r_receipt = result["receipt"];
                if (r_receipt == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result receipt error");
                    return -5;
                }
                JsonData r_bundle_id = r_receipt["bundle_id"];
                if(r_bundle_id == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result receipt bundle_id error");
                    return -6;
                }

                string config_bundle_id = HttpProxyWorldServerUtils.GetServerConfig().iap_bundle_id;
                if(r_bundle_id.ToString() != config_bundle_id)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result receipt bundle_id {0} != config {1}", r_bundle_id.ToString(), config_bundle_id);
                    return -7;
                }

                r_receipt = r_receipt["in_app"];
                if (r_receipt == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result in_app error");
                    return -8;
                }

                r_receipt = r_receipt[0];
                if (r_receipt == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result in_app error");
                    return -9;
                }

                //产品ID  
                JsonData r_product_id = r_receipt["product_id"];
                JsonData r_transaction_id = r_receipt["transaction_id"];
                if (r_product_id == null || r_transaction_id == null)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple result receipt product_id transaction_id error");
                    return -10;
                }

                item_id = r_product_id.ToString();
                transaction_id = r_transaction_id.ToString();

                return 0;
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);
                return -999;
            }
        }

        public static bool CheckFromApple(string receipt, out string item_id, out string transaction_id)
        {
            item_id = "";
            transaction_id = "";

            try
            {
                int result = -1;

                result = CheckByUrl(urlProduction, receipt, out item_id, out transaction_id);
                if (result == 21007
                    && HttpProxyWorldServerUtils.GetServerConfig().iapCheckSandbox == 1)
                {
                    TraceLog.Error("IAPReceiptCheck.CheckFromApple receipt is sandbox , so recheck use sandbox ");

                    result = CheckByUrl(urlSandbox, receipt, out item_id, out transaction_id);
                }


                if (result == 0)
                {
                    TraceLog.Debug("IAPReceiptCheck.CheckFromApple receipt check success ");
                    return true;
                }

                TraceLog.Error("IAPReceiptCheck.CheckFromApple receipt check result {0} ", result);

                return false;
            }
            catch (Exception ex)
            {
                TraceLog.Exception(ex);
                return false;
            }
        }


        private static string Base64Encode(string str)
        {
            byte[] encbuff = System.Text.Encoding.UTF8.GetBytes(str);
            return Convert.ToBase64String(encbuff);
        }

    }
}