客户端IAP二次验证
1、首先苹果IAP把每次购买抽象成了一个事务（SKPaymentTransaction），
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response；
每次在上述方法中收到反馈信息之后添加的[[SKPaymentQueue defaultQueue] addPayment:payment];
就相当于在事务管理中添加了一个事务，只有事务被正常结束（finishTransaction:）该次支付行为才算完成。
即使一次支付中途被中断，这次事务也并没有丢失。假设支付没有完成App就退出了（比如突然崩溃了），那么当下次App重启之后（调用了addTransactionObserver:），之前被中断的事务会接着进行。
这个的缺点就是中间等待重启的时间可能会很长，影响用户体验。
2、在购买成功后的客户端二次验证。
每次购买成功之后都会把encodeStr存到本地，验证成功再进行删除。以后每次打开应用或打开充值会先查看是否有未完成的验证
//交易结果
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions{
NSLog(@"5.交易结果");
for (SKPaymentTransaction *transaction in transactions){
switch (transaction.transactionState){
case SKPaymentTransactionStatePurchased:{//交易完成
NSLog(@"交易完成");
[self completeTransaction:transaction];
} break;
case SKPaymentTransactionStateFailed://交易失败
{ [self failedTransaction:transaction];
NSLog(@"-----交易失败 --------");
[SVProgressHUD dismiss];
UIAlertView *alerView2 = [[UIAlertView alloc] initWithTitle:@"提示"
message:@"购买失败，请重新尝试购买"
delegate:nil cancelButtonTitle:NSLocalizedString(@"关闭",nil) otherButtonTitles:nil];
[alerView2 show];
}break;
case SKPaymentTransactionStateRestored://已经购买过该商品
[self restoreTransaction:transaction];
NSLog(@"-----已经购买过该商品 --------");
case SKPaymentTransactionStatePurchasing: //商品添加进列表
NSLog(@"-----商品添加进列表 --------");
break;
default:
break;
}
}
}
- (void)completeTransaction: (SKPaymentTransaction *)transaction{
NSString * productIdentifier = transaction.payment.productIdentifier;
if ([productIdentifier length] > 0) {
[SVProgressHUD dismiss];
//添加IAPModel到本地
//获取验证凭证
NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];
//从沙盒中获取购买凭证
NSData *receiptData = [NSData dataWithContentsOfURL:receiptURL];
//进行Base64加密
NSString *encodeStr = [receiptData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
WekeIAPModel *model = [[WekeIAPModel alloc]initWithReceiptStr:encodeStr user_id:[AppSingle sharedAppSingle].user_id];
[[AppSingle sharedAppSingle].IAPArray addObject:model];
[SaveCachesFile saveDataList:[AppSingle sharedAppSingle].IAPArray fileName:WekeIAP];
[self verifyPruchaseWithEncodeStr:encodeStr];
[[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}else{
[SVProgressHUD dismiss];
UIAlertView *alerView2 = [[UIAlertView alloc] initWithTitle:@"提示"
message:@"购买失败，未能连接到苹果服务器"
delegate:nil cancelButtonTitle:NSLocalizedString(@"关闭",nil) otherButtonTitles:nil];
[alerView2 show];
}
}
//验证购买凭证
- (void)verifyPruchaseWithEncodeStr :(NSString *)encodeStr{
//验证URL POST请求
NSURL *url = [NSURL URLWithString:Buy_Verify_Receipt_Url];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0f];
request.HTTPMethod = @"POST";
NSString *payload = [NSString stringWithFormat:@"{\"receipt-data\" : \"%@\"}", encodeStr];
NSData *payloadData = [payload dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPBody = payloadData;
// 提交验证请求，并获得官方的验证JSON结果
NSData *result = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
// 官方验证结果为空
if (result == nil) {
NSLog(@"验证失败");
}else{
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:result options:NSJSONReadingAllowFragments error:nil];
NSLog(@"线上环境验证结果%@",dict);
if ([[dict objectForKey:@"status"] integerValue] == 21007) {
//如果是沙盒环境
[self verifyPruchaseInSANDBOXWithEncodeStr:encodeStr];
}else if ([[dict objectForKey:@"status"] integerValue] == 0){
NSLog(@"线上环境验证成功，进行增加积分等操作");
//验证成功 删除IAP数组中的该Model
for (WekeIAPModel *model in self.IAPArray) {
if ([model.encodeStr isEqualToString:encodeStr]) {
[[AppSingle sharedAppSingle].IAPArray removeObject:model];
[self.IAPArray removeObject:model];
[SaveCachesFile saveDataList:[AppSingle sharedAppSingle].IAPArray fileName:WekeIAP];
}
}
[self postGrede];
}else{
NSLog(@"线上环境验证失败");
UIAlertController *alertCT = [UIAlertController alertControllerWithTitle:@"提示" message:@"充值验证失败,请重试" preferredStyle:(UIAlertControllerStyleAlert)];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消"style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}];
UIAlertAction *care = [UIAlertAction actionWithTitle:@"重试"style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self verifyPruchaseWithEncodeStr:encodeStr];
}];
[alertCT addAction:cancel];
[alertCT addAction:care];
[self presentViewController:alertCT animated:YES completion:nil];
}
}
}
//在沙盒中验证
- (void)verifyPruchaseInSANDBOXWithEncodeStr:(NSString *)encodeStr{
//验证URL POST请求
NSURL *url = [NSURL URLWithString:SANDBOX_VERIFY_RECEIPT_URL];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0f];
request.HTTPMethod = @"POST";
NSString *payload = [NSString stringWithFormat:@"{\"receipt-data\" : \"%@\"}", encodeStr];
NSData *payloadData = [payload dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPBody = payloadData;
// 提交验证请求，并获得官方的验证JSON结果
NSData *result = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
if (result== nil) {
NSLog(@"沙盒验证失败");
UIAlertController *alertCT = [UIAlertController alertControllerWithTitle:@"提示" message:@"充值验证失败,请重试" preferredStyle:(UIAlertControllerStyleAlert)];
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消"style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}];
UIAlertAction *care = [UIAlertAction actionWithTitle:@"重试"style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[self verifyPruchaseInSANDBOXWithEncodeStr:encodeStr];
}];
[alertCT addAction:cancel];
[alertCT addAction:care];
[self presentViewController:alertCT animated:YES completion:nil];
}else{
NSLog(@"沙盒验证成功");
[self postGrede];
//验证成功 删除IAP数组中的该Model
for (WekeIAPModel *model in self.IAPArray) {
if ([model.encodeStr isEqualToString:encodeStr]) {
[[AppSingle sharedAppSingle].IAPArray removeObject:model];
[self.IAPArray removeObject:model];
[SaveCachesFile saveDataList:[AppSingle sharedAppSingle].IAPArray fileName:WekeIAP];
}
}
}
}
