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(DataFlex) Use a Custom Set of Trusted Root Certificates

Demonstrates how to build a set of trusted root certificates to be used globally by all Chilkat classes.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-9.5.0-win32.pkg

Procedure Test
    Handle hoTrustedRoots
    Handle hoZip
    Boolean iSuccess
    Variant vEntry
    Handle hoEntry
    Variant vNextEntry
    Handle hoNextEntry
    String sPemStr
    Variant vCert
    Handle hoCert
    Boolean iBHasMoreEntries
    String sTemp1
    Boolean bTemp1

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

    Get Create (RefClass(cComChilkatTrustedRoots)) To hoTrustedRoots
    If (Not(IsComObjectCreated(hoTrustedRoots))) Begin
        Send CreateComObject of hoTrustedRoots
    End

    //  Indicate that we will NOT trust any pre-installed certificates on the system.
    Set ComTrustSystemCaRoots Of hoTrustedRoots To False

    // Thawte is a certificate authority that provides a .zip download of their
    // root CA certificates:  https://www.thawte.com/roots/index.html
    // The direct download link is: https://www.verisign.com/support/thawte-roots.zip
    // Note: The above URLs are valid at the time of writing this example (29-May-2015).

    // Assuming the .zip has already been downloaded, open it and load each .pem file into
    // our trusted roots object.
    Get Create (RefClass(cComChilkatZip)) To hoZip
    If (Not(IsComObjectCreated(hoZip))) Begin
        Send CreateComObject of hoZip
    End

    // Open a .zip containing PEM files, among other things..
    Get ComOpenZip Of hoZip "qa_data/certs/thawte-roots.zip" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoZip To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComFirstMatchingEntry Of hoZip "*.pem" To vEntry
    If (IsComObject(vEntry)) Begin
        Get Create (RefClass(cComChilkatZipEntry)) To hoEntry
        Set pvComObject Of hoEntry To vEntry
    End
    Get ComLastMethodSuccess Of hoZip To bTemp1
    If (bTemp1 <> True) Begin
        Showln "No entries matched."
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatCert)) To hoCert
    If (Not(IsComObjectCreated(hoCert))) Begin
        Send CreateComObject of hoCert
    End

    Move True To iBHasMoreEntries
    While (iBHasMoreEntries = True)

        Get ComFileName Of hoEntry To sTemp1
        Showln "Entry: " sTemp1

        // Get the PEM of the CA cert:
        Get ComUnzipToString Of hoEntry 0 "utf-8" To sPemStr

        // Load it into a certificate object:
        Get ComLoadPem Of hoCert sPemStr To iSuccess
        If (iSuccess <> True) Begin
            Get ComLastErrorText Of hoCert To sTemp1
            Showln sTemp1
        End

        // Add it to the trusted roots.
        Get pvComObject of hoCert to vCert
        Get ComAddCert Of hoTrustedRoots vCert To iSuccess

        // The NextMatchingEntry method was added in v9.5.0.50
        Get ComNextMatchingEntry Of hoEntry "*.pem" To vNextEntry
        If (IsComObject(vNextEntry)) Begin
            Get Create (RefClass(cComChilkatZipEntry)) To hoNextEntry
            Set pvComObject Of hoNextEntry To vNextEntry
        End
        Get ComLastMethodSuccess Of hoEntry To iBHasMoreEntries

        Send Destroy of hoEntry
        Move hoNextEntry To hoEntry
    Loop

    //  Activate the trusted roots globally for all Chilkat objects.
    //  This call really shouldn't fail, so we're not checking the return value.
    Get ComActivate Of hoTrustedRoots To iSuccess


End_Procedure

 

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