(PureBasic) Load Certs from Java KeyStore into Trusted CA Roots

Demonstrates how to load a Java KeyStore containing CA root certificates that are to be trusted by the application. This can be done once at the beginning of an application, and then the trusted roots can be activated so that only these root CA certs are trusted by the application for any TLS connections.

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IncludeFile "CkTrustedRoots.pb"
IncludeFile "CkCert.pb"
IncludeFile "CkJavaKeyStore.pb"

Procedure ChilkatExample()

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

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

    CkJavaKeyStore::setCkVerboseLogging(jks, 1)

    password.s = "myPassword"
    success.i = CkJavaKeyStore::ckLoadFile(jks,password,"qa_data/jks/entrust_caCerts.jks")
    If success <> 1
        Debug CkJavaKeyStore::ckLastErrorText(jks)
        CkJavaKeyStore::ckDispose(jks)
        ProcedureReturn
    EndIf

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

    CkTrustedRoots::setCkVerboseLogging(troots, 1)

    success = CkTrustedRoots::ckAddJavaKeyStore(troots,jks)
    If success <> 1
        Debug CkTrustedRoots::ckLastErrorText(troots)
        CkJavaKeyStore::ckDispose(jks)
        CkTrustedRoots::ckDispose(troots)
        ProcedureReturn
    EndIf

    i.i = 0
    numCerts.i = CkTrustedRoots::ckNumCerts(troots)
    While (i < numCerts)
        cacert.i = CkTrustedRoots::ckGetCert(troots,i)
        Debug Str(i) + ": " + CkCert::ckSubjectDN(cacert)
        CkCert::ckDispose(cacert)

        i = i + 1
    Wend

    ; Activate this specific set of trusted roots.
    success = CkTrustedRoots::ckActivate(troots)
    If success <> 1
        Debug CkTrustedRoots::ckLastErrorText(troots)
        CkJavaKeyStore::ckDispose(jks)
        CkTrustedRoots::ckDispose(troots)
        ProcedureReturn
    EndIf

    ; Output:

    ; 0: C=US, O=Entrust.net, OU=www.entrust.net/CPS incorp. by ref. (limits liab.), OU=(c) 1999 Entrust.net Limited, CN=Entrust.net Secure Server Certification Authority
    ; 1: O=Entrust.net, OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.), OU=(c) 1999 Entrust.net Limited, CN=Entrust.net Certification Authority (2048)
    ; 2: C=US, O="Entrust, Inc.", OU=www.entrust.net/CPS is incorporated by reference, OU="(c) 2006 Entrust, Inc.", CN=Entrust Root Certification Authority


    CkJavaKeyStore::ckDispose(jks)
    CkTrustedRoots::ckDispose(troots)


    ProcedureReturn
EndProcedure