Swift

Check FTP Connection and Login Status

Demonstrates the connection-status properties ConnectVerified, LoginVerified, ConnectFailReason, and Greeting.

Background: When Connect fails, these properties separate the possible causes: ConnectVerified shows whether the TCP connection was established at all, LoginVerified whether authentication then succeeded, and ConnectFailReason gives a numeric code pinpointing the failure — far more actionable than a generic error for distinguishing, say, an unreachable host from a bad password. The Greeting captures the server's opening banner, sometimes useful for identifying the server or its policies.

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Swift


func chilkatTest() {
    var success: Bool = false

    let ftp = CkoFtp2()!

    ftp.hostname = "ftp.example.com"
    ftp.username = "myFtpLogin"

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    ftp.password = "myPassword"

    success = ftp.connect()
    if success != true {
        //  ConnectFailReason gives a numeric code describing why Connect failed.
        print("Connect failed, reason code: \(ftp.connectFailReason.intValue)")
        print("\(ftp.lastErrorText!)")
        return
    }

    //  After a successful connect, these flags report what succeeded.
    print("TCP connection verified: \(ftp.connectVerified)")
    print("Login verified: \(ftp.loginVerified)")

    //  The Greeting property holds the server's initial greeting banner.
    print("Server greeting: \(ftp.greeting!)")

    success = ftp.disconnect()
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }


}