(PowerBuilder) HTTP - Verify Server is a Trusted Root CA

Demonstrates how to only allow connections to an HTTP server having a certificate with a root that is in our list of trusted CA root certificates.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_ChilkatGlob
integer li_Success
string ls_Url
oleobject loo_Http
string ls_Html
oleobject loo_TrustedRoots

// Starting in v9.5.0.49, all Chilkat classes can be unlocked at once at the beginning of a program
// by calling UnlockBundle.  It requires a Bundle unlock code.
loo_ChilkatGlob = create oleobject
// Use "Chilkat_9_5_0.Global" for versions of Chilkat < 10.0.0
li_rc = loo_ChilkatGlob.ConnectToNewObject("Chilkat.Global")
if li_rc < 0 then
    destroy loo_ChilkatGlob
    MessageBox("Error","Connecting to COM object failed")
    return
end if
li_Success = loo_ChilkatGlob.UnlockBundle("Anything for 30-day trial.")
if li_Success <> 1 then
    Write-Debug loo_ChilkatGlob.LastErrorText
    destroy loo_ChilkatGlob
    return
end if

//  On my particular system, the root CA cert for this URL is not pre-installed.
//  Note: This may be different for you.
//  Also, this example was written on 29-May-2015.  This URL was valid at the time,
//  but may not be valid at a future date.
ls_Url = "https://animals.nationalgeographic.com/animals/invertebrates/starfish/"

loo_Http = create oleobject
// Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")

//  Require that the SSL/TLS server certificate is not expired,
//  and that the certificate signature is valid.
//  This does not ensure that it has a chain of authentication to
//  a trusted root.  To ensure that, the TrustedRoots object (below) is required.
loo_Http.RequireSslCertVerify = 1

//  Do the HTTPS page fetch (through the SSH tunnel)
ls_Html = loo_Http.QuickGetStr(ls_Url)
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_ChilkatGlob
    destroy loo_Http
    return
end if

Write-Debug "The HTTP GET was successful."

//  Now let's require that HTTP requests to SSL/TLS servers that don't have trusted CA roots
//  should fail.
loo_TrustedRoots = create oleobject
// Use "Chilkat_9_5_0.TrustedRoots" for versions of Chilkat < 10.0.0
li_rc = loo_TrustedRoots.ConnectToNewObject("Chilkat.TrustedRoots")

//  Indicate that we will trust any pre-installed certificates on this system.
//  (The meaning of pre-installed certificates depends on the operating system, and in
//  some environments there is no such thing as pre-installed certificates.  See the reference
//  documentation for the TrustedRoots class.)
loo_TrustedRoots.TrustSystemCaRoots = 1

//  Activate the trusted roots globally for all Chilkat objects.
//  This call really shouldn't fail, so we're not checking the return value.
li_Success = loo_TrustedRoots.Activate()

//  Given that our previous HTTP GET likely kept the connection open,
//  make sure that all HTTP connections are closed before re-trying.
//  Otherwise, we'll simply be re-using the pre-existing connection.
li_Success = loo_Http.CloseAllConnections()

//  Now let's try fetching the URL again.  It should fail this time because
//  there is a requirement that the SSL/TLS server certificate must have a trusted root,
//  and the trusted root for this URL is not installed on my system (but may be different for you..)
ls_Html = loo_Http.QuickGetStr(ls_Url)
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
    Write-Debug "Good, the HTTP request failed as expected."
else
    Write-Debug loo_Http.LastErrorText
    Write-Debug "Hmmm... we did not fail as expected?"
end if



destroy loo_ChilkatGlob
destroy loo_Http
destroy loo_TrustedRoots