emersion/go-imap - 如何检索和列出看不见的消息

Question

我正在尝试使用 IMAP 协议的这个实现，但似乎无法从邮箱中检索看不见的邮件。

这是我的代码。

package main

import (
    "emailmonitor/util"
    "fmt"
)

func main() {

    serverGmail := util.NewServerGmail()

    serverGmail.Connect()
    serverGmail.Login()
    serverGmail.ListUnseenMessages()

}

//-----------------------------------------

package util

import (
    "io/ioutil"
    "log"
    "net/mail"
    "net/smtp"

    imap "github.com/emersion/go-imap"
    "github.com/emersion/go-imap/client"
)

type ServerGmail struct {
    user    string
    pass    string
    erro    string
    cliente *client.Client
}

func NewServerGmail() *ServerGmail {
    serverGmail := &ServerGmail{}
    serverGmail.user = "xxxxxx@gmail.com"
    serverGmail.pass = "xxxxx"
    serverGmail.erro = ""

    return serverGmail
}

func (serverGmail *ServerGmail) Connect() {
    // Connect to server
    cliente, erro := client.DialTLS("smtp.gmail.com:993", nil)
    if erro != nil {
        serverGmail.erro = erro.Error()
    }
    log.Println("Connected")

    serverGmail.cliente = cliente

}

func (serverGmail *ServerGmail) Login() {
    // Login
    if erro := serverGmail.cliente.Login(serverGmail.user, serverGmail.pass); erro != nil {
        serverGmail.erro = erro.Error()
    }
    log.Println("Logged")

}

func (serverGmail *ServerGmail) setLabelBox(label string) *imap.MailboxStatus {
    mailbox, erro := serverGmail.cliente.Select(label, true)
    if erro != nil {
        serverGmail.erro = erro.Error()
    }
    return mailbox
}

func (serverGmail *ServerGmail) ListUnseenMessages() {
    mailbox := serverGmail.setLabelBox("INBOX")
    log.Println(mailbox.Unseen)
}

这一行 log.Println(mailbox.Unseen) 打印 0 (zero) messages 并且如文档中所述应该是 "The number of unread messages"。我尝试使用 UnseenSeqNum "The sequence number of the first unseen message in the mailbox" 属性并打印 0（零）。

这只是一个开始，但我想从那里开始，我怎样才能找回看不见的消息。

Answer 1

我以前做过，这里是我的代码摘录：

criteria := imap.NewSearchCriteria()
criteria.WithoutFlags = []string{"\Seen"}
uids, err := c.Search(criteria)
if err != nil {
    log.Println(err)
}
seqset := new(imap.SeqSet)
seqset.AddNum(uids...)
section := &imap.BodySectionName{}
items := []imap.FetchItem{imap.FetchEnvelope, imap.FetchFlags, imap.FetchInternalDate, section.FetchItem()}
messages := make(chan *imap.Message)
err = c.Fetch(seqset, items, messages)

emersion/go-imap - 如何检索和列出看不见的消息

emersion/go-imap - How to retrieve and list unseen messages

imap

go