(C) Import a PFX/P12 into the Windows Certificate Stores

Demonstrates how to import the certificates contained in a .pfx/.p12 to the Windows certificate stores.

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#include <C_CkCert.h>
#include <C_CkCertChain.h>
#include <C_CkCertStore.h>

void ChilkatSample(void)
    {
    HCkCert primaryCert;
    const char *pfxPassword;
    BOOL success;
    HCkCertChain certChain;
    BOOL chainReachesRoot;
    HCkCert cert;
    int i;
    int numCerts;
    HCkCertStore certStoreCU;
    HCkCertStore certStoreCA;
    HCkCertStore certStoreRootCA;
    BOOL readOnlyFlag;
    BOOL allSuccess;

    primaryCert = CkCert_Create();

    // Load a PFX file into a certificate object.
    // The cert object will contain the certificate from the PFX that has a private key.
    // The certs in the chain of authentication (if contained in the PFX) are also loaded,
    // and can be accessed by getting the certificate chain (see below).
    // If the PFX did not include the issuer certs in the chain of authentication, then Chilkat will
    // automatically try to construct the issuer chain from the CA and intermedicate CA certs
    // already installed on the Windows system.
    pfxPassword = "myPfxPassword";
    success = CkCert_LoadPfxFile(primaryCert,"qa_data/pfx/somePfx.p12",pfxPassword);
    if (success == FALSE) {
        printf("%s\n",CkCert_lastErrorText(primaryCert));
        CkCert_Dispose(primaryCert);
        return;
    }

    certChain = CkCert_GetCertChain(primaryCert);
    if (CkCert_getLastMethodSuccess(primaryCert) == FALSE) {
        printf("%s\n",CkCert_lastErrorText(primaryCert));
        CkCert_Dispose(primaryCert);
        return;
    }

    // If the certificate chain reaches the root CA cert, then the last cert in the chain
    // is the root CA cert.
    chainReachesRoot = CkCertChain_getReachesRoot(certChain);
    if (chainReachesRoot == TRUE) {
        printf("The certificate chain reaches the root CA cert.\n");
    }

    i = 0;
    numCerts = CkCertChain_getNumCerts(certChain);
    while (i < numCerts) {
        cert = CkCertChain_GetCert(certChain,i);
        printf("SubjectDN %d: %s\n",i,CkCert_subjectDN(cert));
        printf("IssuerDN %d: %s\n",i,CkCert_issuerDN(cert));
        printf("--\n");
        CkCert_Dispose(cert);
        i = i + 1;
    }

    // The primary cert having the private key will be imported into the Current User "My" certificate store.
    // Any intermediate root certificates will be imported into certificate store for intermediate certificate authorities.
    // The root CA cert will be imported into the Root CA cert store.

    // Let's open each of these 3 certificate stores..
    certStoreCU = CkCertStore_Create();
    certStoreCA = CkCertStore_Create();
    certStoreRootCA = CkCertStore_Create();
    readOnlyFlag = FALSE;

    // "CurrentUser" and "My" are the exact keywords to select your user account's certificate store.
    success = CkCertStore_OpenWindowsStore(certStoreCU,"CurrentUser","My",readOnlyFlag);
    if (success == FALSE) {
        printf("Failed to open the CurrentUser/My certificate store for read/write.\n");
        CkCertChain_Dispose(certChain);
        CkCert_Dispose(primaryCert);
        CkCertStore_Dispose(certStoreCU);
        CkCertStore_Dispose(certStoreCA);
        CkCertStore_Dispose(certStoreRootCA);
        return;
    }

    // Certificate store for intermediate certification authorities (CAs). 
    success = CkCertStore_OpenWindowsStore(certStoreCA,"CurrentUser","CertificationAuthority",readOnlyFlag);
    if (success == FALSE) {
        printf("Failed to open the CurrentUser/CertificationAuthority certificate store for read/write.\n");
        CkCertChain_Dispose(certChain);
        CkCert_Dispose(primaryCert);
        CkCertStore_Dispose(certStoreCU);
        CkCertStore_Dispose(certStoreCA);
        CkCertStore_Dispose(certStoreRootCA);
        return;
    }

    // Certificate store for trusted root certification authorities (CAs). 
    success = CkCertStore_OpenWindowsStore(certStoreRootCA,"CurrentUser","Root",readOnlyFlag);
    if (success == FALSE) {
        printf("Failed to open the CurrentUser/Root certificate store for read/write.\n");
        CkCertChain_Dispose(certChain);
        CkCert_Dispose(primaryCert);
        CkCertStore_Dispose(certStoreCU);
        CkCertStore_Dispose(certStoreCA);
        CkCertStore_Dispose(certStoreRootCA);
        return;
    }

    // Iterate over the certs in the chain and import each into the desired certificate store.
    allSuccess = TRUE;
    i = 0;
    while (i < numCerts) {
        cert = CkCertChain_GetCert(certChain,i);
        if (i == 0) {
            // Import the primary certificate into the CurrentUser/My certificate store.
            success = CkCertStore_AddCertificate(certStoreCU,cert);
            if (success == FALSE) {
                printf("%s\n",CkCertStore_lastErrorText(certStoreCU));
                allSuccess = FALSE;
            }

        }
        else {
            if ((i == (numCerts - 1)) && (chainReachesRoot == TRUE)) {
                // Add the root CA certificate to the CurrentUser/Root certificate store.
                // (Your application can obviously choose whether this should be done or not.  Perhaps you prompt the user.)

                // Note: If the root CA cert is already present in the Windows certificate store, Windows will display
                // a dialog to ask if it should be deleted.  Chilkat does not explicitly display dialogs.
                success = CkCertStore_AddCertificate(certStoreRootCA,cert);
                if (success == FALSE) {
                    printf("%s\n",CkCertStore_lastErrorText(certStoreRootCA));
                    allSuccess = FALSE;
                }

            }
            else {
                // This is an intermediate CA certificate.
                success = CkCertStore_AddCertificate(certStoreCA,cert);
                if (success == FALSE) {
                    printf("%s\n",CkCertStore_lastErrorText(certStoreCA));
                    allSuccess = FALSE;
                }

            }

        }

        if (success == FALSE) {
            printf("Failed to import certificate.\n");
        }

        CkCert_Dispose(cert);
        i = i + 1;
    }

    CkCertChain_Dispose(certChain);

    printf("allSuccess = %d\n",allSuccess);


    CkCert_Dispose(primaryCert);
    CkCertStore_Dispose(certStoreCU);
    CkCertStore_Dispose(certStoreCA);
    CkCertStore_Dispose(certStoreRootCA);

    }