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POSIGSEGV Crash from StoreKit - unable to replicate
 

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  1. POSIGSEGV Crash from StoreKit - unable to replicate
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    <p>A client has brought an existing app to me, and we've just released a new version including Crittercism for crash reports.</p> <p>Since release, we've been getting a load of crash reports as below. I believe that the crash is caused by the delegate of the SKProductRequest being released too soon, so I'm not looking for the answer to why the crash is happening - that's already been answered elsewhere on StackOverflow.</p> <p>My problem is that I can't replicate the bug. I've tried numerous devices, and different versions of iOS. From Crittercism, the crash is happening on mainly up to date devices, and a range of iPhone, iPod and iPad - so it is not one particular type of device, but I still can't make it happen. I've downloaded the Lite version, and from there, bought the Full version - it all works perfectly.</p> <p>My question therefore is does anyone have any idea how I can make it happen on my devices so that I can fix it?!</p> <pre><code>libobjc.A.dylib 0x37393f78 objc_msgSend + 15 StoreKit 0x37bc3a4f -[SKProductsRequest handleFinishResponse:returningError:] + 142 StoreKit 0x37bc4dc7 -[SKRequest _requestFinishedNotification:] + 210 Foundation 0x319624ff __57-[NSNotificationCenter addObserver:selector:name:object:]_block_invoke_0 + 18 CoreFoundation 0x31027547 ___CFXNotificationPost_block_invoke_0 + 70 CoreFoundation 0x30fb3097 _CFXNotificationPost + 1406 Foundation 0x318d63eb -[NSNotificationCenter postNotificationName:object:userInfo:] + 66 AppSupport 0x314eeba3 -[CPDistributedNotificationCenter deliverNotification:userInfo:] + 62 AppSupport 0x314f010b _CPDNDeliverNotification + 290 AppSupport 0x314ee99b _XDeliverNotification + 170 AppSupport 0x314e3b11 migHelperRecievePortCallout + 172 CoreFoundation 0x3102f523 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 38 CoreFoundation 0x3102f4c5 __CFRunLoopDoSource1 + 140 CoreFoundation 0x3102e313 __CFRunLoopRun + 1370 CoreFoundation 0x30fb14a5 CFRunLoopRunSpecific + 300 CoreFoundation 0x30fb136d CFRunLoopRunInMode + 104 GraphicsServices 0x3302b439 GSEventRunModal + 136 UIKit 0x30714cd5 UIApplicationMain + 1080 MyAppLite 0x000fc7c3 main (main.m:13) </code></pre> <p>The culprit is bound to be in here somewhere, but I still can't make it crash on my devices, or in the simulator:</p> <pre><code>#import "InAppPurchaseViewController.h" #define INDICATOR_Y 150.0f #define INDICATOR_MOVE_Y 300.0f #define PRODUCT_LABEL_Y 150.0f #define PURCHASE_BUTTON_Y 190.0f #define RESTORE_BUTTON_Y 240.0f @interface InAppPurchaseViewController (Private) - (void)updateUIToDefaultState; @end @implementation InAppPurchaseViewController - (void) dealloc { [productLabel release]; [purchaseButton release]; [indicatorView release]; [super dealloc]; } #pragma mark - #pragma mark UIViewController - (void)viewDidLoad { [super viewDidLoad]; self.title = @"..."; self.view.backgroundColor = [UIColor blackColor]; self.tableView.backgroundColor = [UIColor blackColor]; self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone; self.tableView.scrollEnabled = NO; self.tableView.indicatorStyle = UIScrollViewIndicatorStyleWhite; UIImageView *headerImageView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"upgrade-header.png"]] autorelease]; UIView *headerView = [[[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, self.view.bounds.size.width, headerImageView.image.size.height + 200.0)] autorelease]; [headerView addSubview:headerImageView]; indicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; indicatorView.hidesWhenStopped = YES; [indicatorView startAnimating]; [headerView addSubview:indicatorView]; productLabel = [[UILabel alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 300.0f, 0.0f)]; productLabel.text = @"..."; productLabel.hidden = YES; productLabel.font = [UIFont systemFontOfSize:18.0f]; productLabel.textColor = [UIColor whiteColor]; productLabel.backgroundColor = [UIColor blackColor]; [productLabel sizeToFit]; [headerView addSubview:productLabel]; purchaseButton = [[UIButton buttonWithType:UIButtonTypeCustom] retain]; purchaseButton.titleLabel.font = [UIFont boldSystemFontOfSize:20.0f]; UIImage *bgImage = [UIImage imageNamed:@"btn_purchase.png"]; UIImage *buttonImage = [bgImage stretchableImageWithLeftCapWidth:(bgImage.size.width / 2.0f) - 1 topCapHeight:0.0f]; [purchaseButton setBackgroundImage:buttonImage forState:UIControlStateNormal]; [purchaseButton setTitle:@"Purchase" forState:UIControlStateNormal]; [purchaseButton addTarget:self action:@selector(purchaseClicked:) forControlEvents:UIControlEventTouchUpInside]; purchaseButton.frame = CGRectMake(0.0f, 0.0f, 300.0f, buttonImage.size.height); purchaseButton.hidden = YES; [self.view addSubview:purchaseButton]; restoreButton = [[UIButton buttonWithType:UIButtonTypeCustom] retain]; restoreButton.enabled = NO; restoreButton.titleLabel.font = [UIFont boldSystemFontOfSize:18.0f]; [restoreButton setBackgroundImage:buttonImage forState:UIControlStateNormal]; [restoreButton setTitle:@"Restore Purchases" forState:UIControlStateNormal]; [restoreButton addTarget:self action:@selector(restoreClicked:) forControlEvents:UIControlEventTouchUpInside]; restoreButton.frame = CGRectMake(0.0f, 0.0f, 300.0f, buttonImage.size.height); [self.view addSubview:restoreButton]; headerImageView.center = headerView.center; headerImageView.frame = CGRectMake(headerImageView.frame.origin.x, 0.0f, headerImageView.frame.size.width, headerImageView.frame.size.height); indicatorView.center = headerView.center; indicatorView.frame = CGRectMake(indicatorView.frame.origin.x, INDICATOR_Y, indicatorView.frame.size.width, indicatorView.frame.size.height); productLabel.center = headerView.center; productLabel.frame = CGRectMake(productLabel.frame.origin.x, PRODUCT_LABEL_Y, productLabel.frame.size.width, productLabel.frame.size.height); purchaseButton.center = headerView.center; purchaseButton.frame = CGRectMake(purchaseButton.frame.origin.x, PURCHASE_BUTTON_Y, purchaseButton.frame.size.width, purchaseButton.frame.size.height); restoreButton.center = headerView.center; restoreButton.frame = CGRectMake(restoreButton.frame.origin.x, RESTORE_BUTTON_Y, restoreButton.frame.size.width, restoreButton.frame.size.height); self.tableView.tableHeaderView = headerView; [self performSelectorInBackground:@selector(retrieveProductDetails:) withObject:nil]; } #pragma mark - #pragma mark AppStoreServiceDelegate - (void)productDetailsRequestSucceededWithResponse:(SKProductsResponse *)response { if (response.products.count == 1) { [self performSelectorOnMainThread:@selector(productDetailsRetrieved:) withObject:[response.products objectAtIndex:0] waitUntilDone:NO]; } else { NSString *message = @"Unable to retrieve product details: No valid product to purchase. Please contact support."; [self performSelectorOnMainThread:@selector(appStoreRequestFailed:) withObject:message waitUntilDone:NO]; } } - (void)productDetailsRequestFailedWithError:(NSError *)error { NSString *message = [NSString stringWithFormat:@"Unable to retrieve product details: %@", [error localizedDescription]]; [self performSelectorOnMainThread:@selector(appStoreRequestFailed:) withObject:message waitUntilDone:NO]; } - (void)transactionSucceededForProductId:(NSString *)productId { [self performSelectorOnMainThread:@selector(purchaseCompleted:) withObject:productId waitUntilDone:NO]; } - (void)transactionFailedWithReason:(NSString *)reason { NSString *message = [NSString stringWithFormat:@"Sorry, your purchase could not be completed: %@", reason]; [self performSelectorOnMainThread:@selector(appStoreRequestFailed:) withObject:message waitUntilDone:NO]; } - (void)transactionCancelled { [self performSelectorOnMainThread:@selector(updateUIToDefaultState) withObject:nil waitUntilDone:NO]; } #pragma mark - #pragma mark UIAlertViewDelegate (purchase failed) - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { [self.navigationController popViewControllerAnimated:YES]; } #pragma mark - #pragma mark Private button callbacks - (void)purchaseClicked:(UIButton *)clicked { clicked.enabled = NO; [indicatorView startAnimating]; indicatorView.frame = CGRectMake(indicatorView.frame.origin.x, INDICATOR_MOVE_Y, indicatorView.frame.size.width, indicatorView.frame.size.height); [self performSelectorInBackground:@selector(purchaseProduct:) withObject:nil]; } - (void)restoreClicked:(UIButton *)clicked { clicked.enabled = NO; [indicatorView startAnimating]; indicatorView.frame = CGRectMake(indicatorView.frame.origin.x, INDICATOR_MOVE_Y, indicatorView.frame.size.width, indicatorView.frame.size.height); [self performSelectorInBackground:@selector(restoreProducts:) withObject:nil]; } #pragma mark - #pragma mark Private - (void)showPurchaseDetailsWithName:(NSString *)productName price:(NSString *)price { self.title = productName; productLabel.text = [NSString stringWithFormat:@"%@, %@", productName, price]; [productLabel sizeToFit]; productLabel.center = self.tableView.tableHeaderView.center; [self updateUIToDefaultState]; } - (void)productDetailsRetrieved:(SKProduct *)productDetails { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [indicatorView stopAnimating]; [self showPurchaseDetailsWithName:productDetails.localizedTitle price:[[AppStoreService sharedAppStoreService] formatPrice:productDetails]]; [pool drain]; } - (void)purchaseCompleted:(NSString *)productId { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [indicatorView stopAnimating]; [[AppStoreService sharedAppStoreService] setPurchasedFullEdition:YES]; [self.navigationController popViewControllerAnimated:YES]; [pool drain]; } - (void)purchaseProduct:(id)ignored { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [[AppStoreService sharedAppStoreService] purchaseProducts:[NSSet setWithObject:[[AppStoreService sharedAppStoreService] inAppProductIdentifierForEdition]] notifyingDelegate:self]; [pool drain]; } - (void)restoreProducts:(id)ignored { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [[AppStoreService sharedAppStoreService] retoreCompletedTransactionsNotifyingDelegate:self]; [pool drain]; } - (void)appStoreRequestFailed:(NSString *)reason { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [[[[UIAlertView alloc] initWithTitle:@"Purchase Error" message:reason delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease] show]; [self updateUIToDefaultState]; [pool drain]; } - (void)retrieveProductDetails:(id)ignored { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [[AppStoreService sharedAppStoreService] requestDetailsOfProducts:[NSSet setWithObject:[[AppStoreService sharedAppStoreService] inAppProductIdentifierForEdition]] notifyingDelegate:self]; [pool drain]; } - (void)updateUIToDefaultState { [indicatorView stopAnimating]; productLabel.hidden = NO; purchaseButton.hidden = NO; restoreButton.enabled = YES; purchaseButton.enabled = YES; } @end </code></pre> <p>Here's the AppStoreService.m</p> <pre><code>// AppStoreService.m #import "AppStoreService.h" #import "SynthesizeSingleton.h" #import "DataService.h" #import "ConfigService.h" #pragma mark - #pragma mark Private internal app store delegates @implementation AppStoreProductRequestDelegate @synthesize delegate = _delegate; - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response { //NSLog(@"Got response... %@", response); [request release]; if (self.delegate) { [self.delegate productDetailsRequestSucceededWithResponse:response]; } } - (void)request:(SKRequest *)request didFailWithError:(NSError *)error { //NSLog(@"Got error... %@", error); [request release]; if (self.delegate) { [self.delegate productDetailsRequestFailedWithError:error]; } } @end @implementation AppStoreTransactionObserver @synthesize delegate = _delegate; - (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions { for (SKPaymentTransaction *transaction in transactions) { switch (transaction.transactionState) { case SKPaymentTransactionStatePurchased: { [self completeTransaction:transaction]; break; } case SKPaymentTransactionStateFailed: { [self failedTransaction:transaction]; break; } case SKPaymentTransactionStateRestored: {[self restoreTransaction:transaction]; break; } default: break; } } } - (void)paymentQueue:(SKPaymentQueue *)queue restoreCompletedTransactionsFailedWithError:(NSError *)error { if (self.delegate) { [self.delegate transactionFailedWithReason:[NSString stringWithFormat:@"Purchase failed: %@", [error localizedDescription]]]; } } - (void)paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue { //NSLog(@"paymentQueueRestoreCompletedTransactionsFinished:"); } - (void)failedTransaction:(SKPaymentTransaction *)transaction { //NSLog(@"failedTransaction: %@", transaction); if (self.delegate) { if (transaction.error.code == SKErrorPaymentCancelled) { [self.delegate transactionCancelled]; } else { [self.delegate transactionFailedWithReason:[NSString stringWithFormat:@"Purchase failed: %@", [transaction.error localizedDescription]]]; } } [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; } - (void)restoreTransaction:(SKPaymentTransaction *)transaction { //NSLog(@"restoreTransaction: %@", transaction); if (self.delegate) { [self.delegate transactionSucceededForProductId:transaction.originalTransaction.payment.productIdentifier]; } [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; } - (void)completeTransaction:(SKPaymentTransaction *)transaction { //NSLog(@"completeTransaction: %@", transaction); if (self.delegate) { [self.delegate transactionSucceededForProductId:transaction.payment.productIdentifier]; } [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; } @end #pragma mark - #pragma mark AppStoreService @implementation AppStoreService SYNTHESIZE_SINGLETON_FOR_CLASS(AppStoreService); static NSString *kLPHasPurchasedFullEdition = @"kLPHasPurchasedFullEdition"; - (AppStoreService *)init { if (self = [super init]) { productDetailsDelegate = [[AppStoreProductRequestDelegate alloc] init]; appStoreObserver = [[AppStoreTransactionObserver alloc] init]; [[SKPaymentQueue defaultQueue] addTransactionObserver:appStoreObserver]; } return self; } - (void) dealloc { [[SKPaymentQueue defaultQueue] removeTransactionObserver:appStoreObserver]; [productDetailsDelegate release]; [appStoreObserver release]; [super dealloc]; } - (BOOL)hasPurchasedFullEdition { return [[NSUserDefaults standardUserDefaults] boolForKey:kLPHasPurchasedFullEdition]; } - (void)setPurchasedFullEdition:(BOOL)purchased { //NSLog(@"Purchased? %d", purchased); [[NSUserDefaults standardUserDefaults] setBool:purchased forKey:kLPHasPurchasedFullEdition]; [[ConfigService sharedConfigService] synchronizeConfig]; } - (NSString *)inAppProductIdentifierForEdition { if ([[DataService sharedDataService] isLiteEdition]) { if ([DataService sharedDataService].isLanguageEdition) { // Note. Remove the "-" from language codes, e.g. Brazillian Portugese pt-br, as in-app purchase IDs cannot contain a hyphen. NSString *fixedCode = [[DataService sharedDataService].languageCode stringByReplacingOccurrencesOfString:@"-" withString:@""]; return [NSString stringWithFormat:@"com.myBrokenApp.%@.AllCategories", fixedCode]; } else { return @"com.myBrokenApp.AllCategories"; } } else { @throw [NSException exceptionWithName:@"InvalidOperation" reason:@"An in app purchase product ID was requested for a non-lite version" userInfo:[NSDictionary dictionary]]; } } - (NSString *)purchasedCategoryIdsWhereClause { // flirting &amp; essentials for lite builds return ([DataService sharedDataService].isLiteEdition &amp;&amp; ![self hasPurchasedFullEdition]) ? @"and c.category_id in (1,19)" : @" "; } - (NSString *)formatPrice:(SKProduct *)product { NSNumberFormatter *numberFormatter = [[NSNumberFormatter alloc] init]; [numberFormatter setFormatterBehavior:NSNumberFormatterBehavior10_4]; [numberFormatter setNumberStyle:NSNumberFormatterCurrencyStyle]; [numberFormatter setLocale:product.priceLocale]; NSString *currency = [numberFormatter stringFromNumber:product.price]; [numberFormatter release]; return currency; } - (void)requestDetailsOfProducts:(NSSet *)products notifyingDelegate:(id&lt;AppStoreServiceDelegate&gt;)delegate { //NSLog(@"Retrieving details of products: %@", products); SKProductsRequest *request = [[SKProductsRequest alloc] initWithProductIdentifiers:products]; productDetailsDelegate.delegate = delegate; request.delegate = productDetailsDelegate; //NSLog(@"Starting request..."); [request start]; } - (void)purchaseProducts:(NSSet *)products notifyingDelegate:(id&lt;AppStoreServiceDelegate&gt;)delegate { //NSLog(@"Making in app purchase for products: %@", products); if ([SKPaymentQueue canMakePayments]) { appStoreObserver.delegate = delegate; for (NSString *productId in products) { [[SKPaymentQueue defaultQueue] addPayment:[SKPayment paymentWithProductIdentifier:productId]]; } } else { [delegate transactionFailedWithReason:@"You are not permitted to make purchases."]; } } - (void)retoreCompletedTransactionsNotifyingDelegate:(id&lt;AppStoreServiceDelegate&gt;)delegate { //NSLog(@"Restoring in-app purchases..."); if ([SKPaymentQueue canMakePayments]) { appStoreObserver.delegate = delegate; [[SKPaymentQueue defaultQueue] restoreCompletedTransactions]; } else { [delegate transactionFailedWithReason:@"You are not permitted to make purchases."]; } } @end </code></pre>
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