(Swift 3,4,5...) Get Certificate Valid To/From Dates

Demonstrates how to get the certificate "valid from" and "valid to" dates.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    let cert = CkoCert()!

    var success: Bool = cert.load(fromFile: "qa_data/certs/testCert.cer")
    if success != true {
        print("\(cert.lastErrorText!)")
        return
    }

    // Get the certificate valid-from date/time
    var ckdt: CkoDateTime? = cert.getValidFromDt()
    // Get the local timestamp string.
    print("Valid from: \(ckdt!.getAsTimestamp(true)!)")
    // Valid from: 2017-03-17T19:00:00-05:00

    // Now get the date/time as another object where we can get the individual numeric date parts.
    var dt: CkoDtObj? = ckdt!.getDtObj(true)
    print("\(dt!.day.intValue)/\(dt!.month.intValue)/\(dt!.year.intValue)  \(dt!.hour.intValue):\(dt!.minute.intValue)")
    dt = nil
    ckdt = nil

    // Get the certificate valid-to date/time
    ckdt = cert.getValidToDt()
    print("Valid to: \(ckdt!.getAsTimestamp(true)!)")
    // Valid to: 2020-03-18T18:59:59-05:00
    dt = ckdt!.getDtObj(true)
    print("\(dt!.day.intValue)/\(dt!.month.intValue)/\(dt!.year.intValue)  \(dt!.hour.intValue):\(dt!.minute.intValue)")
    dt = nil
    ckdt = nil

}