(Swift) SFTP Get File Date/Times in Different Formats

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Note: This example requires Chilkat v11.0.0 or greater.

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func chilkatTest() {
    var success: Bool = false

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let sftp = CkoSFtp()!

    // Connect to the SSH server.  
    var hostname: String? = "my-sftp-server.com"
    var port: Int = 22
    success = sftp.connect(hostname, port: port)
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Authenticate with the SSH server. 
    success = sftp.authenticatePw("myLogin", password: "myPassword")
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    // After authenticating, the SFTP subsystem must be initialized:
    success = sftp.initializeSftp()
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Open a directory on the server...
    // This example opens the "junk" directory located under the HOME directory of the SSH user account.
    var handle: String? = sftp.openDir("junk")
    if sftp.lastMethodSuccess == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Download the directory listing:

    let dirListing = CkoSFtpDir()!
    success = sftp.readDirListing(handle, dirObj: dirListing)
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Close the directory handle
    success = sftp.closeHandle(handle)
    if success == false {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Iterate over the files.
    // Examine each filename and indicate those that match *FICHERO*.pdf
    // (i.e. the filename contains the word "FICHERO" and ends in ".pdf")
    let fileObj = CkoSFtpFile()!
    let sbFilename = CkoStringBuilder()!
    var caseSensitive: Bool = false
    var bLocalDateTime: Bool = false

    let dt = CkoDateTime()!
    var i: Int = 0
    var n: Int = dirListing.numFilesAndDirs.intValue
    while i < n {

        success = dirListing.file(at: i, fileObj: fileObj)
        if success == false {
            print("\(dirListing.lastErrorText!)")
            return
        }

        print("\(fileObj.filename!)")

        // Get the last-modified date/time
        dt.setFromRfc822(fileObj.lastModifiedTimeStr)

        // Get the date/time in other formats offered by the CkDateTime object.

        // such as Wed, 18 Oct 2017 09:08:21 GMT
        print("RFC822 format: \(dt.getAsRfc822(bLocalDateTime)!)")

        // such as 1990-12-31T23:59:60Z
        print("Timestamp: \(dt.getAsTimestamp(bLocalDateTime)!)")

        // Such as: "02/16/2008 12:15:12"  where hour is 0 to 23.
        print("RFC822 format: \(dt.getAsIso8601("MM/DD/YYYY hh:mm:ss", bLocal: bLocalDateTime)!)")

        i = i + 1
    }

    print("Success.")

}