Golang Client.UIDFetch方法代碼示例

func FetchMessages(c *imap.Client, uidSet *imap.SeqSet) (fetched []MsgData, err error) {
	cmd, errF := c.UIDFetch(uidSet, "RFC822")
	if errF != nil {
		err = errF
		return
	}

	for cmd.InProgress() {
		errC := c.Recv(-1)
		if errC != nil {
			return
		}
		for _, rsp := range cmd.Data {

			uid := imap.AsNumber(rsp.MessageInfo().Attrs["UID"])
			mime := imap.AsBytes(rsp.MessageInfo().Attrs["RFC822"])
			msg, errR := mail.ReadMessage(bytes.NewReader(mime))
			if errR != nil {
				continue
			}
			if msg != nil {
				msgdata := GetMessage(msg, uid)
				fetched = append(fetched, msgdata)
			}
		}
		cmd.Data = nil
	}

	return
}

func FetchAllUIDs(c *imap.Client) (uids []uint32, err error) {
	maxmessages := 150000
	uids = make([]uint32, maxmessages)

	set, errS := imap.NewSeqSet("1:*")
	if errS != nil {
		err = errS
		return
	}

	cmd, errF := c.UIDFetch(set, "RFC822.SIZE")
	if errF != nil {
		err = errF
		return
	}

	messagenum := uint32(0)
	for cmd.InProgress() {
		errC := c.Recv(-1)
		if errC != nil {
			continue
		}
		for _, rsp := range cmd.Data {
			uid := imap.AsNumber(rsp.MessageInfo().Attrs["UID"])
			uids[messagenum] = uid
		}
		cmd.Data = nil
		messagenum++
	}

	uids = uids[:messagenum]
	return
}

// getEmails will fetch the full bodies of all emails listed in the given command.
func getEmails(client *imap.Client, cmd *imap.Command) ([]map[string]interface{}, error) {
	var emails []map[string]interface{}
	seq := new(imap.SeqSet)
	for _, rsp := range cmd.Data {
		for _, uid := range rsp.SearchResults() {
			seq.AddNum(uid)
		}
	}
	if seq.Empty() {
		return emails, nil
	}
	fCmd, err := imap.Wait(client.UIDFetch(seq, "INTERNALDATE", "BODY[]", "UID", "RFC822.HEADER"))
	if err != nil {
		return emails, err
	}

	var email map[string]interface{}
	for _, msgData := range fCmd.Data {
		msgFields := msgData.MessageInfo().Attrs
		email, err = newEmailMessage(msgFields)
		if err != nil {
			return emails, err
		}
		emails = append(emails, email)

		// mark message as read
		fSeq := new(imap.SeqSet)
		fSeq.AddNum(imap.AsNumber(msgFields["UID"]))
		_, err = imap.Wait(client.UIDStore(fSeq, "+FLAGS", "\\SEEN"))
		if err != nil {
			return emails, err
		}
	}
	return emails, nil
}

func FetchMessages(c *imap.Client, uidSet *imap.SeqSet) (err error) {
	cmd, err := c.UIDFetch(uidSet, "RFC822")

	for cmd.InProgress() {
		c.Recv(-1)
		for _, rsp := range cmd.Data {
			uid := imap.AsNumber(rsp.MessageInfo().Attrs["UID"])
			mime := imap.AsBytes(rsp.MessageInfo().Attrs["RFC822"])
			if msg, _ := mail.ReadMessage(bytes.NewReader(mime)); msg != nil {
				PrintMessageAsJSON(msg, uid)
			}
		}
		cmd.Data = nil
	}

	return
}

func FetchMessage(conn *imap.Client, messageUID uint32) (msg MessageData, err error) {
	seq, _ := imap.NewSeqSet("")
	seq.AddNum(messageUID)
	var cmd *imap.Command
	cmd, err = imap.Wait(conn.UIDFetch(seq, "INTERNALDATE", "BODY[]", "UID", "RFC822.HEADER"))
	if err != nil {
		log.Printf("Unable to fetch message (%d): %s", messageUID, err.Error())
		return
	}

	if len(cmd.Data) == 0 {
		log.Printf("Unable to fetch message (%d) from src: NO DATA", messageUID)
		return msg, NotFound
	}

	msgFields := cmd.Data[0].MessageInfo().Attrs
	msg = MessageData{InternalDate: imap.AsDateTime(msgFields["INTERNALDATE"]), Body: imap.AsBytes(msgFields["BODY[]"])}
	return msg, nil
}

func GetMessage(folder, uid string, client *imap.Client) (messag *Message, e error) {

	cmd, err := client.Select(folder, true)
	if err != nil {
		return nil, err
	}

	uidlist, _ := imap.NewSeqSet(uid)
	//uidlist.Add(uid)

	fmt.Println("get_mess", folder, uid)
	mess := new(Message)
	mess.Folder = folder

	cmd, err = imap.Wait(client.UIDFetch(uidlist, "FLAGS", "INTERNALDATE", "RFC822.SIZE", "RFC822")) //  "RFC822.HEADER",  "BODY.PEEK[TEXT]") )
	if err != nil {
		return mess, err
	}
	fmt.Println(len(cmd.Data), cmd.Data)
	rsp := cmd.Data[0]
	minfo := rsp.MessageInfo()

	mess.Uid = minfo.UID

	msg, _ := mail.ReadMessage(bytes.NewReader(imap.AsBytes(minfo.Attrs["RFC822"])))
	mime, mime_err := enmime.ParseMIMEBody(msg)

	for flag, boo := range minfo.Flags {
		if flag == "\\Seen" && boo {
			mess.Seen = true
		}
		if flag == "\\Flagged" && boo {
			mess.Flagged = true
		}
	}
	/*
		bites := imap.AsBytes(minfo.Attrs["RFC822"])
		msg, msg_err := mail.ReadMessage(bytes.NewReader(bites))
		if msg_err != nil {
			return mess, msg_err
		}
	*/

	//fmt.Println(msg.Header.Get("Content-type"))
	//fmt.Println(msg.Header.Get("To"))
	//fmt.Println(msg.Header.Get("Delivered-To"))

	// From
	from, fro_err := mail.ParseAddress(msg.Header.Get("From"))
	if fro_err != nil {
		fmt.Println("address ettot")
	} else {
		mess.FromName = from.Name
		mess.FromEmail = from.Address
	}

	//for i, m := range minfo.Attrs {

	//fmt.Println(i,m)
	//}
	// Date
	dat := imap.AsDateTime(minfo.Attrs["INTERNALDATE"])
	mess.Date = dat.Format("2006-01-02 15:04:05")

	mess.Subject = msg.Header.Get("Subject")
	mess.ContentType = msg.Header.Get("Content-Type")
	//fmt.Println("body=", cmd.Data[0].String)

	//bodyb := imap.AsBytes(minfo.Attrs["BODY[TEXT]"])
	//bb := 	bytes.NewReader(bytes.NewReader(header + bodyb))

	//fmt.Println("bodyb=", string(msg.Body))

	//fmt.Printf("----\n%v\n", mime.Html == nil)
	//mess.Body = mime.Text
	if mime_err != nil {
		fmt.Println("err=", mime_err, mime)
	}
	//*/
	//fmt.Println("body=", body)

	mess.BodyText = mime.Text
	mess.BodyHtml = mime.Html //imap.AsString(minfo.Attrs["RFC822"])

	return mess, nil

}