(Unicode C) Scan for Emails with Attachments and Save Attachments to Files

Scan for emails with attachments and save attachments.

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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;
    HCkEmailW email;
    int numAttach;
    const wchar_t *uidStr;
    int uid;
    HCkEmailW fullEmail;
    int j;
    const wchar_t *filename;

    // This example requires 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;

    // Get the message IDs of all the emails in the mailbox
    messageSet = CkImapW_Search(imap,L"ALL",fetchUids);
    if (CkImapW_getLastMethodSuccess(imap) != TRUE) {
        wprintf(L"%s\n",CkImapW_lastErrorText(imap));
        CkImapW_Dispose(imap);
        return;
    }

    // Fetch the email headers into a bundle object:

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

    // Scan for emails with attachments, and save the attachments
    // to a sub-directory.

    for (i = 0; i <= CkEmailBundleW_getMessageCount(bundle) - 1; i++) {

        email = CkEmailBundleW_GetEmail(bundle,i);

        // Does this email have attachments?
        // Use GetMailNumAttach because the attachments
        // are not actually in the email object because
        // we only downloaded headers.
        // (Had we downloaded the full emails by
        // calling mailman.FetchBundle, we could look
        // at the email object's NumAttachments property.)
        numAttach = CkImapW_GetMailNumAttach(imap,email);

        if (numAttach > 0) {
            // Download the entire email and save the
            // attachments. (Remember, we 
            // need to download the entire email because
            // only the headers were previously downloaded.
            // If the entire emails were downloaded by
            // calling FetchBundle instead of FetchHeaders,
            // this would not be necessary.

            // 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) {
                success = CkEmailW_SaveAllAttachments(fullEmail,L"attachmentsDir");
                CkEmailW_Dispose(fullEmail);
            }

            for (j = 0; j <= numAttach - 1; j++) {
                filename = CkImapW_getMailAttachFilename(imap,email,j);
                wprintf(L"%s\n",filename);
            }

        }

        CkEmailW_Dispose(email);
    }

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

    CkMessageSetW_Dispose(messageSet);
    CkEmailBundleW_Dispose(bundle);


    CkImapW_Dispose(imap);

    }