Receipt parsing fails due to format changes

[Theome]

Since a few days ago, some of the App Receipts that are generated by iOS have a slightly different format and Kvitto fails to parse these receipts properly. In my app, around 50% of the app receipts are affected. I'm already using Kvitto in my app since about a year, but this problem occurred for the first time on September 24.

It seems that the issue is that sometimes the date format contains fractional seconds, so for example a date looks like this

2020-09-27T12:07:19.686Z

instead of this:

2020-09-27T12:07:19Z

The method _dateFromRFC3339String() fails to parse the former date string, so _dateFromData() throws and Receipt.init?(contentsOfURL) returns nil.

It's possible that there are some more changes to the format - I'm still investigating. If I find time in the next days, I'll prepare a pull request with a fix.

[odrobnik]

Do you have an example receipt? Then We could easily fix that. I'll look into supporting the conversion function with fractional seconds as well.

[Theome]

Sure. Can I send you the receipt by email? I don't want to accidentally leak sensitive data.

[odrobnik]

Sure. Can I send you the receipt by email? I don't want to accidentally leak sensitive data.

Of course, oliver@cocoanetics.com

[odrobnik]

@Theome I enhanced the date parsing function to work with and without fractional seconds.

[odrobnik]

Fix released in 1.0.4