mirror of
https://github.com/wneessen/go-mail.git
synced 2024-09-19 18:52:47 +02:00
Winni Neessen
63d8cef8ca
This PR refactors the the DSN (RFC 1891) SMTP client handling, that was introduced in f4cdc61dd0.
While most of the Client options stay the same, the whole workaround logic for the SMTP client has been removed and added as part of the SMTP client instead.
This was we got rid of the Client's own `mail()`, `rcpt()`, `dsnRcpt()`, `dsnMail()` methods as well as the copies of the `cmd()` and `validateLine()` methods. The Client is now using the proper `Mail()` and `Rcpt()` methods of the SMTP client instead.
110 lines
3 KiB
Go
110 lines
3 KiB
Go
// SPDX-FileCopyrightText: 2022-2023 The go-mail Authors
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//
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// SPDX-License-Identifier: MIT
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//go:build go1.20
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// +build go1.20
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package mail
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import (
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"errors"
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"strings"
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)
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// Send sends out the mail message
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func (c *Client) Send(ml ...*Msg) (rerr error) {
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if err := c.checkConn(); err != nil {
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rerr = &SendError{Reason: ErrConnCheck, errlist: []error{err}, isTemp: isTempError(err)}
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return
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}
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for _, m := range ml {
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m.sendError = nil
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if m.encoding == NoEncoding {
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if ok, _ := c.sc.Extension("8BITMIME"); !ok {
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m.sendError = &SendError{Reason: ErrNoUnencoded, isTemp: false}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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}
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f, err := m.GetSender(false)
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if err != nil {
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m.sendError = &SendError{Reason: ErrGetSender, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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rl, err := m.GetRecipients()
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if err != nil {
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m.sendError = &SendError{Reason: ErrGetRcpts, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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if c.dsn {
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if c.dsnmrtype != "" {
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c.sc.SetDSNMailReturnOption(string(c.dsnmrtype))
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}
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}
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if err := c.sc.Mail(f); err != nil {
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m.sendError = &SendError{Reason: ErrSMTPMailFrom, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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if reserr := c.sc.Reset(); reserr != nil {
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rerr = errors.Join(rerr, reserr)
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}
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continue
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}
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failed := false
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rse := &SendError{}
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rse.errlist = make([]error, 0)
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rse.rcpt = make([]string, 0)
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rno := strings.Join(c.dsnrntype, ",")
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c.sc.SetDSNRcptNotifyOption(rno)
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for _, r := range rl {
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if err := c.sc.Rcpt(r); err != nil {
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rse.Reason = ErrSMTPRcptTo
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rse.errlist = append(rse.errlist, err)
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rse.rcpt = append(rse.rcpt, r)
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rse.isTemp = isTempError(err)
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failed = true
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}
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}
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if failed {
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if reserr := c.sc.Reset(); reserr != nil {
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rerr = errors.Join(rerr, reserr)
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}
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m.sendError = rse
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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w, err := c.sc.Data()
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if err != nil {
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m.sendError = &SendError{Reason: ErrSMTPData, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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_, err = m.WriteTo(w)
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if err != nil {
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m.sendError = &SendError{Reason: ErrWriteContent, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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if err := w.Close(); err != nil {
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m.sendError = &SendError{Reason: ErrSMTPDataClose, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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if err := c.Reset(); err != nil {
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m.sendError = &SendError{Reason: ErrSMTPReset, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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continue
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}
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if err := c.checkConn(); err != nil {
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m.sendError = &SendError{Reason: ErrConnCheck, errlist: []error{err}, isTemp: isTempError(err)}
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rerr = errors.Join(rerr, m.sendError)
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}
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}
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return
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}
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