漏单的原因
苹果应用内支付漏单的原因有很多，例如：验证阶段，app 闪退、app 断网或者网络不好、app 登录超时
根本原因在于苹果只负责收钱，而收钱之后的校验工作交给开发者自己来处理，开发者拿到凭证 receipt 后，去请求自己的服务器验证。
处理漏单的过程
- 用户已经付费，此时提示购买完成
- 开发者拿着获取的凭证
receipt去请求自己的服务器，并且客户端记录并且本地记录这条key为transactionID的交易相关信息（包括订单号paymentID, 交易号transactionID），另外凭证receipt最好不要保存在客户端 - 服务器拿到客户端传过来的交易相关信息后，首先校验订单号是否正确，是否与用户相匹配，避免用户切换账号的问题。校验订单号通过后再去苹果服务器校验凭证，这里需要注意，在苹果审核的时候是走沙盒环境的，生产走正式环境，服务端需要先正常流程验证正式环境，当返回错误码显示环境错误的时候，走测试环境
- 正常情况下，校验凭证通过，客户端
finish掉 这个transaction，并且本地清除掉这条key为transactionID对应的交易信息，但是，当在请求服务端的时候，出现程序闪退、网络不好的时候，就校验失败了，但是用户的钱苹果已经扣掉，服务没有开通的现象，也就是漏单了，如果这时用户再次点击这个productID对应的商品，就会报此应用将免费恢复的提示，这里只能在用户下一次打开应用的时候处理漏单流程了 - 当用户再次启动应用程序的时候，当有未
finish掉的transaction时，应用程序会自动调用 方法 paymentQueue: updatedTransactions: - 那我们通过什么来判断这次校验的是漏单流程还是正常流程呢？
布尔值isCash是判断漏单流程的条件，如果用户是点击购买按钮进来的，isCash为YES， 那我们可以判断走正常流程，如果isCash为NO，我们就走漏单流程，本地读取之前保存的交易信息，再次请求服务端，校验凭证
代码
- .h 文件
#import <Foundation/Foundation.h>
#import <StoreKit/StoreKit.h>
@interface LxInAppPurchaseManager : NSObject
typedef void (^LxInAppPurchaseProductCompleteSuccessBlock)(id data);
typedef void (^LxInAppPurchaseProductCompleteFailureBlock)(id data);
/**
订单号，服务器生成的交易编号
*/
@property(nonatomic,copy)NSString *paymentID;
/**
是否为漏单，如果为真走正常流程，否则走漏单流程
*/
@property (nonatomic, assign)BOOL cash;
/**
单例类
@return 单例对象
*/
+ (instancetype)sharedManager;
/**
点击某项内购商品的购买按钮
@param productID iTunes Connect 上商品的标识符
*/
- (void)payBtnPressed:(NSString *)productID completeSuccessBlock:(LxInAppPurchaseProductCompleteSuccessBlock)__successBlock
failureBlock:(LxInAppPurchaseProductCompleteFailureBlock)__failureBlock;
/**
开始监听
*/
- (void)startObserver;
/**
停止监听
*/
- (void)stopObserver;
@end
- .m文件
#import "LxInAppPurchaseManager.h"
#import "SignServiceVerifyReceiptTask.h"
#import "LxIapRequestContent.h"
#import "LxArchiverManager.h"
@interface LxInAppPurchaseManager()<SKProductsRequestDelegate, SKPaymentTransactionObserver>
@property (nonatomic, assign)BOOL isObserver; // 程序是否添加监听
@property(nonatomic,copy)NSString *productID; // iTunes Connect上商品的标识符
@property (nonatomic, copy)NSString *transactionID;
@property (nonatomic, strong)SKProduct *product;
@property (nonatomic, copy)LxInAppPurchaseProductCompleteSuccessBlock successBlock;
@property (nonatomic, copy)LxInAppPurchaseProductCompleteFailureBlock failureBlock;
@end
@implementation LxInAppPurchaseManager
static LxInAppPurchaseManager *purchaseManager = nil;
+ (instancetype)sharedManager{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
purchaseManager = [[LxInAppPurchaseManager alloc] init];
});
return purchaseManager;
}
- (void)payBtnPressed:(NSString *)productID completeSuccessBlock:(LxInAppPurchaseProductCompleteSuccessBlock)__successBlock
failureBlock:(LxInAppPurchaseProductCompleteFailureBlock)__failureBlock{
self.successBlock = __successBlock;
self.failureBlock = __failureBlock;
self.productID = productID;
if (!self.productID) {
[MBProgressHUD wyp_error:@"商品标识符不能为空" block:nil];
return;
}
// 判断用户是否允许应用内付费
if ([SKPaymentQueue canMakePayments]){
SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:productID]];
request.delegate = self;
[request start];
}else
[MBProgressHUD wyp_error:@"用户不允许内购" block:nil];
}
#pragma mark - 监听内购
// 开始监听内购
- (void)startObserver {
// isObserver 程序是否添加监听
if (!self.isObserver) {
[[SKPaymentQueue defaultQueue] addTransactionObserver:self];
NSLog(@"//----------------------------- 开始监听内购 ------------------------------//");
self.isObserver = YES;
}
}
// 移除监听内购
- (void)stopObserver {
if (self.isObserver) {
[[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
NSLog(@"//----------------------------- 移除监听内购 ------------------------------//");
self.isObserver = NO;
}
}
#pragma mark - SKProductsRequestDelegate
// 检索成功后的回调，从 App Store 获取产品列表信息请求的响应
- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{
NSArray *products = response.products;
if (products.count != 0) {
for (SKProduct *_product in products) {
if ([_product.productIdentifier isEqualToString:self.productID]) {
self.product = _product;
}
}
SKMutablePayment *payment = [SKMutablePayment paymentWithProduct:self.product];
// 服务器的交易编号，也就是订单号 paymentID
payment.applicationUsername = self.paymentID;
// 发起购买
NSLog(@"//----------------------------- 发起购买 ------------------------------//");
[[SKPaymentQueue defaultQueue] addPayment:payment];
}else{
[MBProgressHUD wyp_error:@"无法获取商品" block:nil];
}
}
#pragma mark - SKRequestDelegate
// 检索失败后的回调
- (void)request:(SKRequest *)request didFailWithError:(NSError *)error {
[MBProgressHUD wyp_error:@"请求苹果服务器失败" block:nil];
}
// 检索结束
- (void)requestDidFinish:(SKRequest *)request{
NSLog(@"//----------------------------- 苹果反馈信息结束 ------------------------------//");
}
#pragma mark -
// 当用户购买的操作有结果时，就会触发下面的回调函数
- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray<SKPaymentTransaction *> *)transactions {
for (SKPaymentTransaction *transaction in transactions) {
self.transactionID = transaction.transactionIdentifier;
switch (transaction.transactionState) {
case SKPaymentTransactionStatePurchased: // 交易成功
[self purchasedTransaction:transaction];
break;
case SKPaymentTransactionStateFailed: // 交易失败
[self failedTransaction:transaction];
break;
case SKPaymentTransactionStateRestored: // 已经购买过该商品，消耗型不支持恢复,TODU
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
break;
case SKPaymentTransactionStatePurchasing: // 已经在商品列表中
NSLog(@"//----------------------------- 等待支付 ------------------------------//");
break;
case SKPaymentTransactionStateDeferred: // 最终状态未确定
NSLog(@"//----------------------------- 最终状态未确定 ------------------------------//");
break;
default:
break;
}
}
}
// 恢复购买
- (void)restoredTransation:(SKPaymentTransaction *)transaction{
[MBProgressHUD wyp_error:@"" block:^{
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
}];
}
// 付款失败后，结束交易
- (void)failedTransaction:(SKPaymentTransaction *)transaction{
NSString *detail = @"";
switch (transaction.error.code) {
case SKErrorUnknown:
NSLog(@"SKErrorUnknown");
detail = @"未知的错误";
break;
case SKErrorClientInvalid:
NSLog(@"SKErrorClientInvalid");
detail = @"当前苹果账户无法购买商品(如有疑问，可以询问苹果客服)";
break;
case SKErrorPaymentCancelled:
NSLog(@"SKErrorPaymentCancelled");
detail = @"购买已取消";
break;
case SKErrorPaymentInvalid:
NSLog(@"SKErrorPaymentInvalid");
detail = @"购买无效(如有疑问，可以询问苹果客服)";
break;
case SKErrorPaymentNotAllowed:
NSLog(@"SKErrorPaymentNotAllowed");
detail = @"当前苹果设备无法购买商品(如有疑问，可以询问苹果客服)";
break;
case SKErrorStoreProductNotAvailable:
NSLog(@"SKErrorStoreProductNotAvailable");
detail = @"当前商品不可用";
break;
default:
NSLog(@"No Match Found for error");
detail = @"未知的错误";
break;
}
[MBProgressHUD wyp_error:detail block:^{
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
NSLog(@"//----------------------------- 购买失败 ------------------------------//");
NSLog(@"//----------------------------- 交易失败订单号开始 ------------------------------//");
NSLog(@"transaction.payment.applicationUsername:%@",transaction.payment.applicationUsername);
NSLog(@"//----------------------------- 交易失败订单号结束 ------------------------------//");
}];
}
// 付款成功后，请求服务端
- (void)purchasedTransaction:(SKPaymentTransaction *)transaction{
NSLog(@"//----------------------------- 交易成功订单号开始 ------------------------------//");
NSLog(@"transaction.payment.applicationUsername:%@",transaction.payment.applicationUsername);
NSLog(@"//----------------------------- 交易成功订单号结束 ------------------------------//");
NSLog(@"//----------------------------- 购买成功验证订单 ------------------------------//");
NSLog(@"//----------------------------- 获得凭证receipt ------------------------------//");
// 获取凭证
NSData *data = [NSData dataWithContentsOfURL:[[NSBundle mainBundle] appStoreReceiptURL]];
NSString *receipt = [data base64EncodedStringWithOptions:0];
NSLog(@"//----------------------------- receipt 开始 ------------------------------//");
NSLog(@"receipt(base64String):%@",receipt);
NSLog(@"//----------------------------- receipt 结束 ------------------------------//");
if (!receipt) {
[MBProgressHUD wyp_error:@"获取凭证失败" block:^{
return;
}];
}
if (self.cash) {
NSLog(@"//----------------------------- 处理正常流程 ------------------------------//");
NSMutableDictionary *requestContent = [NSMutableDictionary dictionary];
[requestContent setValue:receipt forKey:@"receiptData"];
[requestContent setValue:self.transactionID forKey:@"transactionId"];
[requestContent setValue:self.paymentID forKey:@"paymentId"];
//把这个信息存起到本地
LxIapRequestContent *iapRequestContent = [LxIapRequestContent instanceWithDic:requestContent error:nil];
[[LxArchiverManager shareManager] saveArchiverData:iapRequestContent andKey:transaction.transactionIdentifier];
self.cash = NO;
[self tellServerBuySuccessWithTradeInfo:requestContent transaction:transaction];
}else{
NSLog(@"//----------------------------- 处理漏单流程 ------------------------------//");
//从本地读取交易信息
LxIapRequestContent *iapRequestContent = [[LxArchiverManager shareManager] queryArchiverDataWithKey:transaction.transactionIdentifier];
NSMutableDictionary *requestContent = [NSMutableDictionary dictionary];
[requestContent setValue:receipt forKey:@"receiptData"];
[requestContent setValue:iapRequestContent.transactionId forKey:@"transactionId"];
[requestContent setValue:iapRequestContent.paymentId forKey:@"paymentId"];
[self tellServerBuySuccessWithTradeInfo:requestContent transaction:transaction];
}
}
#pragma mark - 请求服务端，记录交易
// 验证交易
- (void)tellServerBuySuccessWithTradeInfo:(NSMutableDictionary *)tradeInfo transaction:(SKPaymentTransaction *)transaction{
[SignServiceVerifyReceiptTask startWithDic:tradeInfo success:^(NSDictionary *__data, id __task) {
[[LxArchiverManager shareManager] clearArchiverDataWithKey:transaction.transactionIdentifier];
BOOL result = [[__data objectForKey:@"payResult"] boolValue];
NSString *msg = [__data objectForKey:@"message"];
if(!result){
[MBProgressHUD wyp_error:msg block:^{
NSLog(@"//----------------------------- 验证失败,购买结束 ------------------------------//");
if (self.failureBlock) {
self.failureBlock(__data);
}
return ;
}];
}else{
[MBProgressHUD wyp_success:msg block:^{
NSLog(@"//----------------------------- 验证成功,购买结束 ------------------------------//");
[[SKPaymentQueue defaultQueue] finishTransaction:transaction];
if (self.successBlock) {
self.successBlock(__data);
}
}];
}
} failure:^(id __data, id __task) {
[MBProgressHUD wyp_error:@"验证失败,购买结束" block:^{
NSLog(@"//----------------------------- 验证失败,订单结束 ------------------------------//");
if (self.failureBlock) {
self.failureBlock(__data);
}
}];
}];
}
@end
如有问题，欢迎留言讨论
