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allways set a message-id on mails (#17900)

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* allways set a message-id on mails
* Add unit tests for mailer & Message-ID

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
This commit is contained in:
Garionion
2021-12-08 08:34:23 +01:00
committed by GitHub
parent 0ff18a808c
commit b59875aa12
3 changed files with 66 additions and 5 deletions
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16
services/mailer/mailer.go
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@@ -9,6 +9,7 @@ import (
"bytes"
"crypto/tls"
"fmt"
"hash/fnv"
"io"
"net"
"net/smtp"
@@ -67,6 +68,10 @@ func (m *Message) ToMessage() *gomail.Message {
msg.SetBody("text/plain", plainBody)
msg.AddAlternative("text/html", m.Body)
}
if len(msg.GetHeader("Message-ID")) == 0 {
msg.SetHeader("Message-ID", m.generateAutoMessageID())
}
return msg
}
@@ -75,6 +80,17 @@ func (m *Message) SetHeader(field string, value ...string) {
m.Headers[field] = value
}
func (m *Message) generateAutoMessageID() string {
dateMs := m.Date.UnixNano() / 1e6
h := fnv.New64()
if len(m.To) > 0 {
_, _ = h.Write([]byte(m.To[0]))
}
_, _ = h.Write([]byte(m.Subject))
_, _ = h.Write([]byte(m.Body))
return fmt.Sprintf("<autogen-%d-%016x@%s>", dateMs, h.Sum64(), setting.Domain)
}
// NewMessageFrom creates new mail message object with custom From header.
func NewMessageFrom(to []string, fromDisplayName, fromAddress, subject, body string) *Message {
log.Trace("NewMessageFrom (body):\n%s", body)