在运行时获取配置文件的EXPIRATION日期？

iOSProgrammingIsFun 发表于 Dev

iOS编程是有趣的

我有一个应用程序，我经常通过即席分发方法将其传递给测试人员。这些测试人员中的一些人“随时待命”，并且对调配配置文件和季度到期足够了解，并且可以（如果我忘了）给我一些帮助，以重建一个新版本供他们测试。

但是，有些用户似乎总是到停止运行的位置，然后对此and之以鼻，尽管他们可能忽略了iOS级别的提醒。

我的问题是，我可以通过编程方式掌握运行时的到期日期，并且可以自己发出“应用内”警报或系统通知来提醒他们拉下较新版本吗？

尼古拉·苏万吉耶夫（Nikolay Suvandzhiev）

迅捷版：

// Returns `nil` if it fails
private func getProvisioningProfileExpirationDateAsString() -> String? {
    guard
        let profilePath = Bundle.main.path(forResource: "embedded", ofType: "mobileprovision"),
        let profileData = try? Data(contentsOf: URL(fileURLWithPath: profilePath)),
        // Note: We use `NSString` instead of `String`, because it makes it easier working with regex, ranges, substring etc.
        let profileNSString = NSString(data: profileData, encoding: String.Encoding.ascii.rawValue)
        else {
        print("WARNING: Could not find or read `embedded.mobileprovision`. If running on Simulator, there are no provisioning profiles.")
        return nil
    }


    // NOTE: We have the `[\\W]*?` check to make sure that variations in number of tabs or new lines in the future does not influence the result.
    guard let regex = try? NSRegularExpression(pattern: "<key>ExpirationDate</key>[\\W]*?<date>(.*?)</date>", options: []) else {
        print("Warning: Could not create regex.")
        return nil
    }

    let regExMatches = regex.matches(in: profileNSString as String, options: [], range: NSRange(location: 0, length: profileNSString.length))

    // NOTE: range `0` corresponds to the full regex match, so to get the first capture group, we use range `1`
    guard let rangeOfCapturedGroupForDate = regExMatches.first?.range(at: 1) else {
        print("Warning: Could not find regex match or capture group.")
        return nil
    }

    let dateAsString = profileNSString.substring(with: rangeOfCapturedGroupForDate)
    return dateAsString
}