Download and Save Email Attachments (POP3)

Downloads emails from a POP3 mailbox and saves all attachments.

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#include <CkMailMan.h>
#include <CkEmailBundle.h>
#include <CkEmail.h>

void ChilkatSample(void)
    {
    //  The mailman object is used for receiving (POP3)
    //  and sending (SMTP) email.
    CkMailMan mailman;

    //  Any string argument automatically begins the 30-day trial.
    bool success;
    success = mailman.UnlockComponent("30-day trial");
    if (success != true) {
        printf("Component unlock failed\n");
        return;
    }

    //  Set the POP3 server's hostname
    mailman.put_MailHost("mail.chilkatsoft.com");

    //  Set the POP3 login/password.
    mailman.put_PopUsername("***");
    mailman.put_PopPassword("***");

    CkEmailBundle *bundle = 0;
    //  Copy the all email from the user's POP3 mailbox
    //  into a bundle object.  The email remains on the server.
    bundle = mailman.CopyMail();

    if (bundle == 0 ) {
        printf("%s\n",mailman.lastErrorText());
        return;
    }

    const char * dirPath;
    dirPath = "c:/myAttachments";

    long i;
    CkEmail *email = 0;
    for (i = 0; i <= bundle->get_MessageCount() - 1; i++) {
        email = bundle->GetEmail(i);

        //  You may save all the attachments to the specified directory
        //  by calling SaveAllAttachments.
        //  The SaveAllAttachments method will automatically create the directory
        //  if it does not already exist.
        success = email->SaveAllAttachments(dirPath);
        if (success != true) {
            printf("%s\n",email->lastErrorText());
            return;
        }

        //  The OverwriteExisting property controls whether already-existing files
        //  are automatically overwritten.  By default, it is set to true so that existing
        //  files will be overwritten.

        //  Setting OverwriteExisting = false will cause the attachment-saving methods to generate
        //  unique filenames if a file with the same name already exists.  The actual filename(s)
        //  saved will be present by calling GetAttachmentFilename for each attachment *after*
        //  saving.
        //  For example...
        email->put_OverwriteExisting(false);
        success = email->SaveAllAttachments(dirPath);
        if (success != true) {
            printf("%s\n",email->lastErrorText());
            return;
        }

        long n;
        n = email->get_NumAttachments();
        long j;
        for (j = 0; j <= n - 1; j++) {
            //  If the attachment filename was changed to prevent overwriting,
            //  GetAttachmentFilename will return the new filename.
            printf("%s\n",email->getAttachmentFilename(j));
        }

        //  You may also save individual attachments:
        for (j = 0; j <= n - 1; j++) {

            printf("Original Filename: %s\n"
                ,email->getAttachmentFilename(j));
            success = email->SaveAttachedFile(j,dirPath);
            if (success != true) {
                printf("%s\n",email->lastErrorText());
                return;
            }

            //  If OverwriteExisting = true, the saved filename will always equal the original filename,
            //  unless there are characters present in the filename that are not allowed by Windows,
            //  such as * ? < > | etc.  In those cases the illegal characters are either removed or replaced
            //  with underscore characters to allow the file to be saved.
            printf("Saved Filename: %s\n",email->getAttachmentFilename(j));
        }

        delete email;
    }

    delete bundle;
    }