Unicode C

Get the Server Certificate, Certificate Chain, and Root CA Certificate

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Demonstrates how to get the HTTP server certificate, its certificate chain, and the root CA certificate. Unicode C

#include <C_CkHttpW.h>
#include <C_CkCertW.h>
#include <C_CkCertChainW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpW http;
    HCkCertW sslCert;
    HCkCertChainW certChain;
    HCkCertW cert;
    int i;
    int numCerts;
    HCkCertW caCert;

    success = FALSE;

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

    http = CkHttpW_Create();

    // We're getting the SSL/TLS certificate, so make sure to connect to the SSL/TLS port (443).
    sslCert = CkCertW_Create();
    success = CkHttpW_GetServerCert(http,L"apple.com",443,sslCert);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkCertW_Dispose(sslCert);
        return;
    }

    certChain = CkCertChainW_Create();
    success = CkCertW_BuildCertChain(sslCert,certChain);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(sslCert));
        CkHttpW_Dispose(http);
        CkCertW_Dispose(sslCert);
        CkCertChainW_Dispose(certChain);
        return;
    }

    cert = CkCertW_Create();
    i = 0;
    numCerts = CkCertChainW_getNumCerts(certChain);
    while (i < numCerts) {
        CkCertChainW_CertAt(certChain,i,cert);
        wprintf(L"SubjectDN %d: %s\n",i,CkCertW_subjectDN(cert));
        wprintf(L"IssuerDN %d: %s\n",i,CkCertW_issuerDN(cert));
        i = i + 1;
    }

    // If the certificate chain reaches the root CA cert, then the last cert in the chain
    // is the root CA cert.
    if (CkCertChainW_getReachesRoot(certChain) == TRUE) {
        caCert = CkCertW_Create();
        CkCertChainW_CertAt(certChain,numCerts - 1,caCert);
        wprintf(L"CA Root Cert: %s\n",CkCertW_subjectDN(caCert));
    }



    CkHttpW_Dispose(http);
    CkCertW_Dispose(sslCert);
    CkCertChainW_Dispose(certChain);
    CkCertW_Dispose(cert);
    CkCertW_Dispose(caCert);

    }