119 lines
2.3 KiB
Go
119 lines
2.3 KiB
Go
package smtp_server
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"github.com/mileusna/spf"
|
|
log "github.com/sirupsen/logrus"
|
|
"io"
|
|
"net"
|
|
"net/netip"
|
|
"pmail/db"
|
|
"pmail/dto/parsemail"
|
|
"pmail/hooks"
|
|
"pmail/utils/async"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
func (s *Session) Data(r io.Reader) error {
|
|
emailData, err := io.ReadAll(r)
|
|
if err != nil {
|
|
log.Error("邮件内容无法读取", err)
|
|
return err
|
|
}
|
|
|
|
for _, hook := range hooks.HookList {
|
|
if hook == nil {
|
|
continue
|
|
}
|
|
async.New(nil).Process(func() {
|
|
hook.ReceiveParseBefore(emailData)
|
|
})
|
|
}
|
|
|
|
log.Infof("邮件原始内容: %s", emailData)
|
|
|
|
var dkimStatus, SPFStatus bool
|
|
|
|
// DKIM校验
|
|
dkimStatus = parsemail.Check(bytes.NewReader(emailData))
|
|
|
|
email := parsemail.NewEmailFromReader(bytes.NewReader(emailData))
|
|
|
|
if err != nil {
|
|
log.Fatalf("邮件内容解析失败！ Error : %v \n", err)
|
|
}
|
|
|
|
SPFStatus = spfCheck(s.RemoteAddress.String(), email.Sender, email.Sender.EmailAddress)
|
|
|
|
var dkimV, spfV int8
|
|
if dkimStatus {
|
|
dkimV = 1
|
|
}
|
|
if SPFStatus {
|
|
spfV = 1
|
|
}
|
|
|
|
for _, hook := range hooks.HookList {
|
|
if hook == nil {
|
|
continue
|
|
}
|
|
async.New(nil).Process(func() {
|
|
hook.ReceiveParseAfter(email)
|
|
})
|
|
}
|
|
|
|
sql := "INSERT INTO email (send_date, subject, reply_to, from_name, from_address, `to`, bcc, cc, text, html, sender, attachments,spf_check, dkim_check, create_time) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)"
|
|
_, err = db.Instance.Exec(sql,
|
|
email.Date,
|
|
email.Subject,
|
|
json2string(email.ReplyTo),
|
|
email.From.Name,
|
|
email.From.EmailAddress,
|
|
json2string(email.To),
|
|
json2string(email.Bcc),
|
|
json2string(email.Cc),
|
|
email.Text,
|
|
email.HTML,
|
|
json2string(email.Sender),
|
|
json2string(email.Attachments),
|
|
spfV,
|
|
dkimV,
|
|
time.Now())
|
|
|
|
if err != nil {
|
|
log.Println("mysql insert error:", err.Error())
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func json2string(d any) string {
|
|
by, _ := json.Marshal(d)
|
|
return string(by)
|
|
}
|
|
|
|
func spfCheck(remoteAddress string, sender *parsemail.User, senderString string) bool {
|
|
//spf校验
|
|
ipAddress, _ := netip.ParseAddrPort(remoteAddress)
|
|
|
|
ip := net.ParseIP(ipAddress.Addr().String())
|
|
if ip.IsPrivate() {
|
|
return true
|
|
}
|
|
|
|
tmp := strings.Split(sender.EmailAddress, "@")
|
|
if len(tmp) < 2 {
|
|
return false
|
|
}
|
|
|
|
res := spf.CheckHost(ip, tmp[1], senderString, "")
|
|
|
|
if res == spf.None || res == spf.Pass {
|
|
// spf校验通过
|
|
return true
|
|
}
|
|
return false
|
|
}
|