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// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package sender
import (
"fmt"
"io"
"os/exec"
"strings"
"code.gitea.io/gitea/modules/graceful"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/process"
"code.gitea.io/gitea/modules/setting"
)
// SendmailSender Sender sendmail mail sender
type SendmailSender struct{}
var _ Sender = &SendmailSender{}
// Send send email
func (s *SendmailSender) Send(from string, to []string, msg io.WriterTo) error {
var err error
var closeError error
var waitError error
envelopeFrom := from
if setting.MailService.OverrideEnvelopeFrom {
envelopeFrom = setting.MailService.EnvelopeFrom
}
args := []string{"-f", envelopeFrom, "-i"}
args = append(args, setting.MailService.SendmailArgs...)
args = append(args, to...)
log.Trace("Sending with: %s %v", setting.MailService.SendmailPath, args)
desc := fmt.Sprintf("SendMail: %s %v", setting.MailService.SendmailPath, args)
ctx, _, finished := process.GetManager().AddContextTimeout(graceful.GetManager().HammerContext(), setting.MailService.SendmailTimeout, desc)
defer finished()
cmd := exec.CommandContext(ctx, setting.MailService.SendmailPath, args...)
pipe, err := cmd.StdinPipe()
if err != nil {
return err
}
process.SetSysProcAttribute(cmd)
if err = cmd.Start(); err != nil {
_ = pipe.Close()
return err
}
if setting.MailService.SendmailConvertCRLF {
buf := &strings.Builder{}
_, err = msg.WriteTo(buf)
if err == nil {
_, err = strings.NewReplacer("\r\n", "\n").WriteString(pipe, buf.String())
}
} else {
_, err = msg.WriteTo(pipe)
}
// we MUST close the pipe or sendmail will hang waiting for more of the message
// Also we should wait on our sendmail command even if something fails
closeError = pipe.Close()
waitError = cmd.Wait()
if err != nil {
return err
} else if closeError != nil {
return closeError
}
return waitError
}
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