PureBasic

Set an FTPS Client Certificate from PEM

Demonstrates the Chilkat Ftp2.SetSslClientCertPem method, which configures a client certificate and private key from PEM. The first argument may be the PEM text or a PEM file path, and the second is the private-key password (empty when the key is not encrypted).

Note: The local paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the PEM-based form of setting the mutual-TLS client certificate — convenient when the certificate and key already live in a .pem file, the common format from OpenSSH and Unix tooling. Use SetSslClientCertPfx instead for a PKCS#12 .pfx/.p12 bundle. As with any client certificate, set it before connecting.

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IncludeFile "CkFtp2.pb"

Procedure ChilkatExample()

    success.i = 0

    ;  Demonstrates the Ftp2.SetSslClientCertPem method, which configures a client certificate and
    ;  private key from PEM.  The 1st argument is the PEM text or a PEM file path, and the 2nd is the
    ;  private-key password (empty when the key is not encrypted).

    ftp.i = CkFtp2::ckCreate()
    If ftp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkFtp2::setCkHostname(ftp, "ftp.example.com")
    CkFtp2::setCkUsername(ftp, "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.
    CkFtp2::setCkPassword(ftp, "myPassword")

    ;  Use explicit FTPS (AUTH TLS) on the standard FTP port.
    CkFtp2::setCkAuthTls(ftp, 1)

    ;  Provide the PEM client certificate before connecting.  The password should come from a secure
    ;  source rather than being hard-coded.
    pemPassword.s = "myPemPassword"
    success = CkFtp2::ckSetSslClientCertPem(ftp,"qa_data/client.pem",pemPassword)
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf

    success = CkFtp2::ckConnect(ftp)
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf

    Debug "Connected with a PEM client certificate."

    success = CkFtp2::ckDisconnect(ftp)
    If success = 0
        Debug CkFtp2::ckLastErrorText(ftp)
        CkFtp2::ckDispose(ftp)
        ProcedureReturn
    EndIf



    CkFtp2::ckDispose(ftp)


    ProcedureReturn
EndProcedure