PureBasic Requires Chilkat v11.0.0+

Transition from Email.GetSignedByCertChain to Email.LastSignerCert

Provides instructions for replacing deprecated GetSignedByCertChain method calls with LastSignerCert. PureBasic

IncludeFile "CkCert.pb"
IncludeFile "CkCertChain.pb"
IncludeFile "CkEmail.pb"

Procedure ChilkatExample()

    success.i = 0

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

    ;  ...
    ;  ...

    ;  ------------------------------------------------------------------------
    ;  The GetSignedByCertChain method is deprecated:

    certChainObj.i = CkEmail::ckGetSignedByCertChain(email)
    If CkEmail::ckLastMethodSuccess(email) = 0
        Debug CkEmail::ckLastErrorText(email)
        CkEmail::ckDispose(email)
        ProcedureReturn
    EndIf

    ;  ...
    ;  ...

    CkCertChain::ckDispose(certChainObj)

    ;  ------------------------------------------------------------------------
    ;  Do the equivalent using LastSignerCert to get the signing certificate,
    ;  then build the cert chain from the signing certificate object.

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

    success = CkEmail::ckLastSignerCert(email,0,signerCert)
    If success = 0
        Debug CkEmail::ckLastErrorText(email)
        CkEmail::ckDispose(email)
        CkCert::ckDispose(signerCert)
        ProcedureReturn
    EndIf

    ;  Get the certificate chain from the signer certificate.
    certChain.i = CkCertChain::ckCreate()
    If certChain.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkCert::ckBuildCertChain(signerCert,certChain)
    If success = 0
        Debug CkCert::ckLastErrorText(signerCert)
        CkEmail::ckDispose(email)
        CkCert::ckDispose(signerCert)
        CkCertChain::ckDispose(certChain)
        ProcedureReturn
    EndIf



    CkEmail::ckDispose(email)
    CkCert::ckDispose(signerCert)
    CkCertChain::ckDispose(certChain)


    ProcedureReturn
EndProcedure