IOS应用内支付返回新旧Receipt适配

ios7.0后ios支付成功返回的票据Receipt的获取方式有了新的方式，

原来的SKPaymentTransaction中的transactionReceipt属性获取票据的方式已经过期，虽然还能使用，但是苹果官方建议使用新的

新版的获取Receipt的方式是通过新接口如下

NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
NSData  *receipt = [NSData dataWithContentsOfURL:receiptURL];

当然，低于ios7.0的还是需要使用老版本接口，对两种版本进行适配的代码如下：

NSData*receipt= nil；
if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")){
//ios after 7.0
    NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
    receipt = [NSData dataWithContentsOfURL:receiptURL];
    NSString *receiptURLStr = [receiptURL absoluteString];
    NSRange rangeSandbox = [receiptURLStr rangeOfString:@"sandbox"];
    if (rangeSandbox.location != NSNotFound){
        record[kIAPEnvironment] = [NSNumber numberWithInt:1];
    }
}else{
//ios 3.0~7.0
    receipt = transaction.transactionReceipt;
    NSDictionary *dict = [NSDictionary dictionaryWithContentsOfData:receipt];
    if (dict){
        NSString *env = [dict objectForKey:@"environment"];
        if ([env isEqualToString:@"Sandbox"]) {
            record[kIAPEnvironment] = [NSNumber numberWithInt:1];
        }
  }
}

判断是否是沙盒支付，新版本可以直接判断receiptURL中是否存在“sandbox“

老版本receipt可以解析NSData 查看environment是否为Sandbox来判断

+ (NSDictionary *)dictionaryWithContentsOfData: (NSData *)data{
    CFPropertyListRef plist = CFPropertyListCreateFromXMLData(kCFAllocatorDefault, (__bridge CFDataRef)data,
    kCFPropertyListImmutable, NULL);
    if(plist == nil) return nil;
    if ([(__bridge id)plist isKindOfClass:[NSDictionary class]]){
    return (__bridge NSDictionary *)plist;
    }else{
    CFRelease(plist);
    return nil;
    }
}

客户端receipt验证方式：

NSError *error;
NSDictionary *requestContents = @{
@"receipt-data": [receipt base64EncodedString]
};
NSData *requestData = [NSJSONSerialization dataWithJSONObject:requestContents
options:0
error:&error];
if (!requestData) {
    return;
}
// Create a POST request with the receipt data.
NSURL *storeURL = [NSURL URLWithString:@"https://sandbox.itunes.apple.com/verifyReceipt"];//根据是否是沙盒支付验证取正确的地址
NSMutableURLRequest *storeRequest = [NSMutableURLRequest requestWithURL:storeURL];
[storeRequest setHTTPMethod:@"POST"];
[storeRequest setHTTPBody:requestData];
// Make a connection to the iTunes Store on a background queue.
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:storeRequest queue:queue
completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
    if (connectionError) {
    /* ... Handle error ... */
} else {
    NSError *error;
    NSDictionary *jsonResponse = [NSJSONSerialization JSONObjectWithData:data     options:0 error:&error];
    if (!jsonResponse) { /* ... Handle error ...*/ }
    /* ... Send a response back to the device ... */
    }
}];

老版本返回格式：

{

bid = "com.coodezhang.test";

bvrs = "1.0";

"item_id" = 892617314;

"original_purchase_date" = "2017-12-14 07:43:14 Etc/GMT";

"original_purchase_date_ms" = 1626147394550;

"original_purchase_date_pst" = "2017-12-14 12:43:14 America/Los_Angeles";

"original_transaction_id" = 1000001127239959;

"product_id" = "com.coodezhang.test_coins99M_Tier1";

"purchase_date" = "2017-12-14 07:43:14 Etc/GMT";

"purchase_date_ms" = 1626147394550;

"purchase_date_pst" = "2017-12-14 12:43:14 America/Los_Angeles";

quantity = 1;

"transaction_id" = 1000001127239959;

"unique_identifier" = 0000b0124819;

"unique_vendor_identifier" = "ASDGF2DB-DSAD-5A21-9611-642A4B9CASDE7";

};

status = 0;

}

新版本返回格式官方文档：官方文档

新版本返回格式：

{

environment = Sandbox;

receipt =     {

"adam_id" = 0;

"app_item_id" = 0;

"application_version" = 1;

"bundle_id" = "com.coodezhang.test";

"download_id" = 0;

"in_app" =         (

{

"is_trial_period" = false;

"original_purchase_date" = "2017-12-14 07:18:56 Etc/GMT";

"original_purchase_date_ms" = 1513235936000;

"original_purchase_date_pst" = "2017-12-13 23:18:56 America/Los_Angeles";

"original_transaction_id" = 1000000359369424;

"product_id" = "com.coodezhang.test_coins99M_Tier1";

"purchase_date" = "2017-12-14 07:18:56 Etc/GMT";

"purchase_date_ms" = 1513235936000;

"purchase_date_pst" = "2017-12-13 23:18:56 America/Los_Angeles";

quantity = 1;

"transaction_id" = 1000000359369424;

}

...... 可能存在多条

);

"original_application_version" = "1.0";

"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";

"receipt_creation_date" = "2017-12-14 07:18:56 Etc/GMT";

"receipt_creation_date_ms" = 1513235936000;

"receipt_creation_date_pst" = "2017-12-13 23:18:56 America/Los_Angeles";

"receipt_type" = ProductionSandbox;

"request_date" = "2017-12-14 07:19:23 Etc/GMT";

"request_date_ms" = 1513235963829;

"request_date_pst" = "2017-12-13 23:19:23 America/Los_Angeles";

"version_external_identifier" = 0;

};

status = 0;

}

值得注意的是，新版中数据结构中的in_app字段，可能包含多个transaction的receipt。当完成transaction后，还没有成功调用读取过receipt的接口，那下一次读取recept时会把所有的都读取出来，从而出现多条数据。

一般开发商app支付都有自己的支付系统，可能每次下单之前都会创建自己的订单号，需要与ios支付后返回的receipt一一对应，这种情况下如何处理还需要注意。