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// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2019 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package log
import (
"fmt"
"net/smtp"
"strings"
"code.gitea.io/gitea/modules/json"
)
type smtpWriter struct {
owner *SMTPLogger
}
// Write sends the message as an email
func (s *smtpWriter) Write(p []byte) (int, error) {
return s.owner.sendMail(p)
}
// Close does nothing
func (s *smtpWriter) Close() error {
return nil
}
// SMTPLogger implements LoggerProvider and is used to send emails via given SMTP-server.
type SMTPLogger struct {
WriterLogger
Username string `json:"Username"`
Password string `json:"password"`
Host string `json:"host"`
Subject string `json:"subject"`
RecipientAddresses []string `json:"sendTos"`
sendMailFn func(string, smtp.Auth, string, []string, []byte) error
}
// NewSMTPLogger creates smtp writer.
func NewSMTPLogger() LoggerProvider {
s := &SMTPLogger{}
s.Level = TRACE
s.sendMailFn = smtp.SendMail
return s
}
// Init smtp writer with json config.
// config like:
// {
// "Username":"example@gmail.com",
// "password:"password",
// "host":"smtp.gmail.com:465",
// "subject":"email title",
// "sendTos":["email1","email2"],
// "level":LevelError
// }
func (log *SMTPLogger) Init(jsonconfig string) error {
err := json.Unmarshal([]byte(jsonconfig), log)
if err != nil {
return fmt.Errorf("Unable to parse JSON: %v", err)
}
log.NewWriterLogger(&smtpWriter{
owner: log,
})
log.sendMailFn = smtp.SendMail
return nil
}
// WriteMsg writes message in smtp writer.
// it will send an email with subject and only this message.
func (log *SMTPLogger) sendMail(p []byte) (int, error) {
hp := strings.Split(log.Host, ":")
// Set up authentication information.
auth := smtp.PlainAuth(
"",
log.Username,
log.Password,
hp[0],
)
// Connect to the server, authenticate, set the sender and recipient,
// and send the email all in one step.
contentType := "Content-Type: text/plain" + "; charset=UTF-8"
mailmsg := []byte("To: " + strings.Join(log.RecipientAddresses, ";") + "\r\nFrom: " + log.Username + "<" + log.Username +
">\r\nSubject: " + log.Subject + "\r\n" + contentType + "\r\n\r\n")
mailmsg = append(mailmsg, p...)
return len(p), log.sendMailFn(
log.Host,
auth,
log.Username,
log.RecipientAddresses,
mailmsg,
)
}
// Flush when log should be flushed
func (log *SMTPLogger) Flush() {
}
// ReleaseReopen does nothing
func (log *SMTPLogger) ReleaseReopen() error {
return nil
}
// GetName returns the default name for this implementation
func (log *SMTPLogger) GetName() string {
return "smtp"
}
func init() {
Register("smtp", NewSMTPLogger)
}
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