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(Objective-C) Scan for Emails with Attachments and Save Attachments to FilesScan for emails with attachments and save attachments. Note: This example requires Chilkat v11.0.0 or greater.
#import <CkoImap.h> #import <CkoMessageSet.h> #import <CkoEmailBundle.h> #import <CkoEmail.h> #import <NSString.h> BOOL success = NO; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkoImap *imap = [[CkoImap alloc] init]; // Connect to an IMAP server. // Use TLS imap.Ssl = YES; imap.Port = [NSNumber numberWithInt:993]; success = [imap Connect: @"imap.example.com"]; if (success == NO) { NSLog(@"%@",imap.LastErrorText); return; } // Login success = [imap Login: @"myLogin" password: @"myPassword"]; if (success == NO) { NSLog(@"%@",imap.LastErrorText); return; } // Select an IMAP mailbox success = [imap SelectMailbox: @"Inbox"]; if (success == NO) { NSLog(@"%@",imap.LastErrorText); return; } // We can choose to fetch UIDs or sequence numbers. BOOL fetchUids = YES; // Get the message IDs of all the emails in the mailbox CkoMessageSet *messageSet = [[CkoMessageSet alloc] init]; success = [imap QueryMbx: @"ALL" bUid: fetchUids msgSet: messageSet]; if (success == NO) { NSLog(@"%@",imap.LastErrorText); return; } // Fetch the email headers into a bundle object: CkoEmailBundle *bundle = [[CkoEmailBundle alloc] init]; BOOL headersOnly = YES; success = [imap FetchMsgSet: headersOnly msgSet: messageSet bundle: bundle]; if (success == NO) { NSLog(@"%@",imap.LastErrorText); return; } // Scan for emails with attachments, and save the attachments // to a sub-directory. CkoEmail *fullEmail = [[CkoEmail alloc] init]; CkoEmail *emailHeader = [[CkoEmail alloc] init]; int i = 0; while (i < [bundle.MessageCount intValue]) { // The bundle contains email headers.. [bundle EmailAt: [NSNumber numberWithInt: i] email: emailHeader]; // Does this email have attachments? // Use GetMailNumAttach because the attachments // are not actually in the email object because // we only downloaded headers. int numAttach = [[imap GetMailNumAttach: emailHeader] intValue]; 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. // The ckx-imap-uid header field is added when // headers are downloaded. This makes it possible // to get the UID from the email object. NSString *uidStr = [emailHeader GetHeaderField: @"ckx-imap-uid"]; int uid = [uidStr intValue]; success = [imap FetchEmail: NO msgId: uid bUid: YES email: fullEmail]; if (success == NO) { NSLog(@"%@",imap.LastErrorText); return; } success = [fullEmail SaveAllAttachments: @"attachmentsDir"]; int j; for (j = 0; j <= numAttach - 1; j++) { NSString *filename = [imap GetMailAttachFilename: emailHeader attachIndex: [NSNumber numberWithInt: j]]; NSLog(@"%@",filename); } } i = i + 1; } // Disconnect from the IMAP server. success = [imap Disconnect]; |
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