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Handle app receipt expirations properly #3

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d23c069
Ignore Xcode files.
megastep Nov 21, 2013
e606605
- Handle receipt expiration date properly.
megastep Nov 21, 2013
7088d9b
Merge branch 'master' of https://github.com/rmaddy/VerifyStoreReceiptiOS
megastep Nov 29, 2015
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2 changes: 2 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
xcuserdata
*.xcworkspace
75 changes: 53 additions & 22 deletions VerifyStoreReceipt/VerifyStoreReceipt.m
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,14 @@
int type = 0;
int xclass = 0;
long length = 0;

NSDateFormatter *rfc3339DateFormatter = [[NSDateFormatter alloc] init];
NSLocale *enUSPOSIXLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"];

[rfc3339DateFormatter setLocale:enUSPOSIXLocale];
[rfc3339DateFormatter setDateFormat:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"];
[rfc3339DateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];

NSUInteger dataLenght = [inappData length];
const uint8_t *p = [inappData bytes];

Expand Down Expand Up @@ -243,11 +250,12 @@
break;
}

if (key) {
if (key && str_length>0) {
NSString *string = [[NSString alloc] initWithBytes:str_p
length:(NSUInteger)str_length
encoding:NSASCIIStringEncoding];
[item setObject:string forKey:key];
NSDate *date = [rfc3339DateFormatter dateFromString:string];
[item setObject:(date ? date : string) forKey:key];
}
}
}
Expand Down Expand Up @@ -418,31 +426,48 @@
}

// Strings
if (attr_type == BUNDLE_ID || attr_type == VERSION || attr_type == ORIG_VERSION) {
if (attr_type == BUNDLE_ID || attr_type == VERSION || attr_type == ORIG_VERSION || attr_type == EXPIRE_DATE) {
int str_type = 0;
long str_length = 0;
const uint8_t *str_p = p;

switch (attr_type) {
case BUNDLE_ID:
key = kReceiptBundleIdentifier;
break;
case VERSION:
key = kReceiptVersion;
break;
case ORIG_VERSION:
key = kReceiptOriginalVersion;
break;
case EXPIRE_DATE:
key = kReceiptExpirationDate;
break;
}

ASN1_get_object(&str_p, &str_length, &str_type, &xclass, seq_end - str_p);
if (str_type == V_ASN1_UTF8STRING) {
switch (attr_type) {
case BUNDLE_ID:
key = kReceiptBundleIdentifier;
break;
case VERSION:
key = kReceiptVersion;
break;
case ORIG_VERSION:
key = kReceiptOriginalVersion;
break;
}

if (key) {
if (key && str_length>0) {
if (str_type == V_ASN1_UTF8STRING) {
NSString *string = [[NSString alloc] initWithBytes:str_p
length:(NSUInteger)str_length
encoding:NSUTF8StringEncoding];
[info setObject:string forKey:key];
}
}
} else if (str_type == V_ASN1_IA5STRING) {
NSDateFormatter *rfc3339DateFormatter = [[NSDateFormatter alloc] init];
NSLocale *enUSPOSIXLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"];

[rfc3339DateFormatter setLocale:enUSPOSIXLocale];
[rfc3339DateFormatter setDateFormat:@"yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"];
[rfc3339DateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];

NSString *string = [[NSString alloc] initWithBytes:str_p
length:(NSUInteger)str_length
encoding:NSASCIIStringEncoding];
NSDate *date = [rfc3339DateFormatter dateFromString:string];
[info setObject:(date ? date : string) forKey:key];
}
}
}

// In-App purchases
Expand Down Expand Up @@ -521,6 +546,12 @@ BOOL verifyReceiptAtPath(NSString *receiptPath) {
return NO;
}

// See if we are past any expiration date
NSDate *expired = receipt[kReceiptExpirationDate];
if ([expired timeIntervalSinceNow] < 0.0) {
return NO;
}

unsigned char uuidBytes[16];
NSUUID *vendorUUID = [[UIDevice currentDevice] identifierForVendor];
[vendorUUID getUUIDBytes:uuidBytes];
Expand All @@ -533,9 +564,9 @@ BOOL verifyReceiptAtPath(NSString *receiptPath) {
NSMutableData *hash = [NSMutableData dataWithLength:SHA_DIGEST_LENGTH];
SHA1([input bytes], [input length], [hash mutableBytes]);

if ([bundleIdentifier isEqualToString:[receipt objectForKey:kReceiptBundleIdentifier]] &&
[bundleVersion isEqualToString:[receipt objectForKey:kReceiptVersion]] &&
[hash isEqualToData:[receipt objectForKey:kReceiptHash]]) {
if ([bundleIdentifier isEqualToString:receipt[kReceiptBundleIdentifier]] &&
[bundleVersion isEqualToString:receipt[kReceiptVersion]] &&
[hash isEqualToData:receipt[kReceiptHash]]) {
return YES;
}

Expand Down