(C) Using Client Certificate w/ IMAP SSL

Demonstrates how to use a client-side certificate with an IMAP SSL connection. The SetSslClientCert method is called to specify a certificate to be used for the SSL connection.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <C_CkImap.h>
#include <C_CkCertStore.h>
#include <C_CkJsonObject.h>
#include <C_CkCert.h>
#include <C_CkMessageSet.h>
#include <C_CkEmailBundle.h>
#include <C_CkEmail.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkImap imap;
    HCkCertStore certStore;
    HCkJsonObject jsonCN;
    HCkCert cert;
    HCkCert cert2;
    BOOL fetchUids;
    HCkMessageSet messageSet;
    HCkEmailBundle bundle;
    BOOL headersOnly;
    HCkEmail email;
    int i;
    int numEmails;

    success = FALSE;

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

    imap = CkImap_Create();

    // To use a secure SSL connection, set SSL and the port:
    CkImap_putSsl(imap,TRUE);
    // The typical port for IMAP SSL is 993
    CkImap_putPort(imap,993);

    // Load a certificate from a PFX file and use it.
    // Note: Other methods are available to load pre-installed
    // certificates from registry-based certificate stores.

    // Create an instance of a certificate store object, load a PFX file,
    // locate the certificate we need, and use it for signing.
    // (a PFX file may contain more than one certificate.)
    certStore = CkCertStore_Create();
    // The 1st argument is the filename, the 2nd arg is the 
    // PFX file's password:
    success = CkCertStore_LoadPfxFile(certStore,"myCertWithPrivateKey.pfx","secret");
    if (success == FALSE) {
        printf("%s\n",CkCertStore_lastErrorText(certStore));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        return;
    }

    // Find the certificate by the subject common name:
    jsonCN = CkJsonObject_Create();
    CkJsonObject_UpdateString(jsonCN,"CN","cert common name");

    cert = CkCert_Create();
    success = CkCertStore_FindCert(certStore,jsonCN,cert);
    if (success == FALSE) {
        printf("%s\n",CkCertStore_lastErrorText(certStore));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        return;
    }

    // If a PFX file is known to contain a single certificate,
    // you may load it directly into a Chilkat certificate object.
    // This snippet of source code shows how:
    cert2 = CkCert_Create();
    // The 1st argument is the filename, the 2nd arg is the 
    // PFX file's password:
    success = CkCert_LoadPfxFile(cert2,"myClientCert.pfx","secret");
    if (success == FALSE) {
        printf("%s\n",CkCert_lastErrorText(cert));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        CkCert_Dispose(cert2);
        return;
    }

    // Use the cert:
    success = CkImap_SetSslClientCert(imap,cert);

    // Connect to an IMAP server.
    success = CkImap_Connect(imap,"imap.example.com");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        CkCert_Dispose(cert2);
        return;
    }

    // Login
    success = CkImap_Login(imap,"myLogin","myPassword");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        CkCert_Dispose(cert2);
        return;
    }

    // Select an IMAP mailbox
    success = CkImap_SelectMailbox(imap,"Inbox");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        CkCert_Dispose(cert2);
        return;
    }

    // Get the message IDs of all the emails in the mailbox
    fetchUids = TRUE;
    messageSet = CkMessageSet_Create();
    success = CkImap_QueryMbx(imap,"ALL",fetchUids,messageSet);
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        CkCert_Dispose(cert2);
        CkMessageSet_Dispose(messageSet);
        return;
    }

    // Fetch the emails into a bundle object:
    bundle = CkEmailBundle_Create();
    headersOnly = FALSE;
    success = CkImap_FetchMsgSet(imap,headersOnly,messageSet,bundle);
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        CkCertStore_Dispose(certStore);
        CkJsonObject_Dispose(jsonCN);
        CkCert_Dispose(cert);
        CkCert_Dispose(cert2);
        CkMessageSet_Dispose(messageSet);
        CkEmailBundle_Dispose(bundle);
        return;
    }

    // Loop over the bundle and display the FROM and SUBJECT of each.
    email = CkEmail_Create();
    i = 0;
    numEmails = CkEmailBundle_getMessageCount(bundle);
    while (i < numEmails) {
        CkEmailBundle_EmailAt(bundle,i,email);

        printf("%s\n",CkEmail_ck_from(email));
        printf("%s\n",CkEmail_subject(email));
        printf("--\n");
        i = i + 1;
    }

    // Disconnect from the IMAP server.
    success = CkImap_Disconnect(imap);


    CkImap_Dispose(imap);
    CkCertStore_Dispose(certStore);
    CkJsonObject_Dispose(jsonCN);
    CkCert_Dispose(cert);
    CkCert_Dispose(cert2);
    CkMessageSet_Dispose(messageSet);
    CkEmailBundle_Dispose(bundle);
    CkEmail_Dispose(email);

    }