StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POiPhone - finalizing Apple's vague "VerificationController.m"
text
Body
copied!<p>I am trying to implement the new <a href="http://developer.apple.com/library/ios/#releasenotes/StoreKit/IAP_ReceiptValidation/_index.html">VerificationController.m</a> class that Apple released to fix the in-app purchase fraud problem.</p> <p>As everything released by Apple, this is one more vague, incomplete and bad explained document with a lot of voids and unknowns that cannot be circumvented/understood by everyone.</p> <p>I am trying to implement that, but at the end of the code we see these four methods:</p> <pre><code>- (NSString *)encodeBase64:(const uint8_t *)input length:(NSInteger)length { #warning Replace this method. return nil; } - (NSString *)decodeBase64:(NSString *)input length:(NSInteger *)length { #warning Replace this method. return nil; } #warning Implement this function. char* base64_encode(const void* buf, size_t size) { return NULL; } #warning Implement this function. void * base64_decode(const char* s, size_t * data_len) { return NULL; } </code></pre> <p>You can see that Apple was lazy to implement the C functions at the end of the code. As my C/C++ abilities stink, I see I need to implement these two functions in C/C++ and that they must return char and void (???). Other people have posted routines to do that on SO, but they are either in Objective-C or not returning chars and void (??).</p> <p><strong>NOTE: this is another problem I have: how can a method return void if it is used by Apple in this form?</strong></p> <pre><code>uint8_t *purchase_info_bytes = base64_decode([purchase_info_string cStringUsingEncoding:NSASCIIStringEncoding], &purchase_info_length); </code></pre> <p>shouldn't it be returning uint8_t?</p> <p><strong>NOTE2: another problem I have is that apple says base64_encode is required but it is not being used on the code provided by them. I think they are smoking bad stuff or my C/C++ knowledge really stink.</strong></p> <p>So, returning to my first question. Can someone post/point a method that can do the job that follows the requirements of the declared methods base64_encode and base64_decode? Please refrain from posting objective-c methods that are not compatible with these requirements imposed by Apple.</p> <p>Thanks.</p>

Querying!

Guidance

An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload