(Unicode C) Process New Email by Scanning for Senders

Scan email and save application-selected emails to EML files with unique filenames.

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#include <C_CkImapW.h>
#include <C_CkMessageSetW.h>
#include <C_CkEmailBundleW.h>
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    HCkImapW imap;
    BOOL success;
    HCkMessageSetW messageSet;
    BOOL fetchUids;
    HCkEmailBundleW bundle;
    int i;
    int numEmails;
    HCkEmailW email;
    const wchar_t *uidStr;
    int uid;
    HCkEmailW fullEmail;
    const wchar_t *filename;

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

    imap = CkImapW_Create();

    // Connect to an IMAP server.
    // Use TLS
    CkImapW_putSsl(imap,TRUE);
    CkImapW_putPort(imap,993);
    success = CkImapW_Connect(imap,L"imap.someMailServer.com");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Login
    success = CkImapW_Login(imap,L"myLogin",L"myPassword");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Select an IMAP mailbox
    success = CkImapW_SelectMailbox(imap,L"Inbox");
    if (success != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // We can choose to fetch UIDs or sequence numbers.
    fetchUids = TRUE;

    // Fetch messages from the mailbox using a search criteria.
    // This example finds NEW emails: these are emails that have the RECENT flag set, but not the SEEN flag:
    messageSet = CkImapW_Search(imap,L"NEW",fetchUids);
    if (CkImapW_getLastMethodSuccess(imap) == FALSE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // This example will download headers, and then download
    // the full email for those emails sent from a contact
    // in our database.

    // When downloading headers, each email object contains
    // (obviously) the headers, but the body will be missing.
    // Also, attachments will not be included.  However, it is
    // possible to get information about the attachments
    // as well as the complete size of the email.

    bundle = CkImapW_FetchHeaders(imap,messageSet);
    if (CkImapW_getLastMethodSuccess(imap) == FALSE) {
        CkMessageSetW_Dispose(messageSet);
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Loop over the email objects...
    i = 0;
    numEmails = CkEmailBundleW_getMessageCount(bundle);
    while (i < numEmails) {
        email = CkEmailBundleW_GetEmail(bundle,i);

        // The sender's email address and name are available
        // in the From, FromAddress, and FromName properties.
        // If the sender is "Chilkat Support <support@chilkatsoft.com",
        // then the From property will hold the entire string.
        // the FromName property contains"Chilkat Support",
        // and the FromAddress property contains "support@chilkatsoft.com"
        wprintf(L"%s\n",CkEmailW_ck_from(email));
        wprintf(L"%s\n",CkEmailW_fromAddress(email));
        wprintf(L"%s\n",CkEmailW_fromName(email));

        // Assume at this point your code checks to see if the sender
        // is one in your contacts database.  If so, this is
        // the code you would write to download the entire
        // email and save it to a file.

        // The ckx-imap-uid header field is added when
        // headers are downloaded.  This makes it possible
        // to get the UID from the email object.
        uidStr = CkEmailW_getHeaderField(email,L"ckx-imap-uid");
        uid = wcstol(uidStr);

        fullEmail = CkImapW_FetchSingle(imap,uid,TRUE);
        if (CkImapW_getLastMethodSuccess(imap) == TRUE) {
            // You may use the GenerateFilename method to
            // generate a unique filename...

            filename = CkEmailW_generateFilename(fullEmail);

            // SaveEml saves the entire email, including attachments.
            success = CkEmailW_SaveEml(fullEmail,filename);
            CkEmailW_Dispose(fullEmail);
        }

        wprintf(L"--\n");
        CkEmailW_Dispose(email);

        i = i + 1;
    }

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

    CkMessageSetW_Dispose(messageSet);
    CkEmailBundleW_Dispose(bundle);


    CkImapW_Dispose(imap);

    }