示例#1
0
func checkAndPurgeMessages(conn *imap.Client, requests chan WorkRequest, checkRequests chan checkExistsRequest, wg *sync.WaitGroup) {
	defer wg.Done()

	timeout := time.NewTicker(NoopMinutes * time.Minute)
	done := false
	for {
		select {
		case request, ok := <-requests:
			if !ok {
				done = true
				break
			}
			// check and wait for response
			response := make(chan bool)
			cr := checkExistsRequest{UID: request.UID, MessageId: request.Value, Response: response}
			checkRequests <- cr

			// if response is false (does not exist), flag as Deleted
			if exists := <-response; !exists {
				log.Printf("not found in src. marking for deletion: %s", request.Value)
				err := AddDeletedFlag(conn, request.UID)
				if err != nil {
					log.Printf("Problems removing message from dst: %s", err.Error())
				}
			}
		case <-timeout.C:
			imap.Wait(conn.Noop())
		}

		if done {
			break
		}
	}

	log.Printf("expunging...")
	// expunge at the end
	allMsgs, _ := imap.NewSeqSet("")
	allMsgs.Add("1:*")
	imap.Wait(conn.Expunge(allMsgs))
	log.Printf("expunge complete.")
}