6

次のメソッドを使用して領収書データを取得しています。

// Use this method instead of accessing transaction.transactionReceipt directly!
- (NSData *)appStoreReceiptForPaymentTransaction:(SKPaymentTransaction *)transaction {
    NSData *receiptData = nil;

    // This is just a quick/dummy implementation!
    if (kiOS7) {
        NSURL *receiptFileURL = [[NSBundle mainBundle] appStoreReceiptURL];
        receiptData = [NSData dataWithContentsOfURL:receiptFileURL]; // Returns valid NSData object

    } else {
        receiptData = transaction.transactionReceipt; // Returns valid NSData object
    }        

    return receiptData;
}

次のコードを使用して JSON レシートを読み取ります。

NSData *receipt = [self appStoreReceiptForPaymentTransaction:transaction];

NSError *error = nil;
NSDictionary *receiptDict = [receipt dictionaryFromPlistData:&error];
NSString *transactionPurchaseInfo = [receiptDict objectForKey:@"purchase-info"];
NSString *decodedPurchaseInfo = [NSString stringWithUTF8String:[[NSData dataFromBase64String:transactionPurchaseInfo] bytes]];
NSDictionary *purchaseInfoDict = [[decodedPurchaseInfo dataUsingEncoding:NSUTF8StringEncoding] dictionaryFromPlistData:&error];

NSString *transactionID = [purchaseInfoDict objectForKey:@"transaction-id"];
NSString *purchaseDateString = [purchaseInfoDict objectForKey:@"purchase-date"];
NSString *signature = [receiptDict objectForKey:@"signature"];
NSString *signatureDecoded = [NSString stringWithUTF8String:[[NSData dataFromBase64String:signature] bytes]];

// Convert the string into a date
NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
[dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss z"];

NSDate *purchaseDate = [dateFormat dateFromString:[purchaseDateString stringByReplacingOccurrencesOfString:@"Etc/" withString:@""]];

NSLog(@"Raw receipt content: \n%@", [NSString stringWithUTF8String:[receipt bytes]]);
NSLog(@"Purchase Info: %@", purchaseInfoDict);
NSLog(@"Transaction ID: %@", transactionID);
NSLog(@"Purchase Date: %@", purchaseDate);
NSLog(@"Signature: %@", signatureDecoded);

このdictionaryFromPlistData:メソッドは、NSDictionaryによって返されたデータに対して適切なオブジェクトを返しtransactionReceiptますが、次を使用して返されたnilデータを使用して返されますappStoreReceiptURL。その結果、有効な領収書が得られません!

- (NSDictionary *)dictionaryFromPlistData:(NSError **)outError {
    NSError *error;
    NSDictionary *dictionaryParsed = [NSPropertyListSerialization propertyListWithData:self
                                                                               options:NSPropertyListImmutable
                                                                                format:nil
                                                                                 error:&error];

    if (!dictionaryParsed) {

        if (error) {
            *outError = error;
        }

        return nil;
    }

    return dictionaryParsed;
}

上記のコードが iOS 7 で機能しないのはなぜですか?

繰り返しますが、によって返された をdictionaryFromPlistData:正しく変換します。NSDatatransaction.transactionReceipt

4

1 に答える 1