88 lines
1.7 KiB
Go
88 lines
1.7 KiB
Go
package mail
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import (
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"crypto/tls"
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"fmt"
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"net/mail"
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"net/smtp"
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"git.acooldomain.co/server-manager/backend-kubernetes-go/models"
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)
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const EMAIL_SERVER_ENV_VAR = "EMAIL_SERVER"
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const FROM_EMAIL_ENV_VAR = "FROM_EMAIL"
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var auth *smtp.Auth
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var mailConfig *models.EmailConfig
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func InitializeClient(config models.EmailConfig) error {
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simpleAuth := smtp.PlainAuth("", config.Username, config.Password, config.Server)
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auth = &simpleAuth
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mailConfig = &config
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return nil
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}
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func SendMail(
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recipient string,
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subject string,
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content string,
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) error {
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if auth == nil {
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return fmt.Errorf("mail not initialized")
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}
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if mailConfig == nil {
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return fmt.Errorf("mail not initialized")
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}
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from := mail.Address{Name: "", Address: mailConfig.FromEmail}
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to := mail.Address{Name: "", Address: recipient}
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headers := make(map[string]string)
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headers["From"] = from.String()
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headers["To"] = to.String()
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headers["Subject"] = subject
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message := ""
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for k, v := range headers {
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message += fmt.Sprintf("%s: %s\r\n", k, v)
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}
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message += "\r\n" + content
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conn, err := tls.Dial("tcp", mailConfig.Server+":465", &tls.Config{ServerName: mailConfig.Server})
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if err != nil {
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return err
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}
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client, err := smtp.NewClient(conn, mailConfig.Server)
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if err != nil {
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return err
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}
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if err = client.Auth(*auth); err != nil {
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return err
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}
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if err = client.Mail(mailConfig.FromEmail); err != nil {
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return err
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}
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if err = client.Rcpt(recipient); err != nil {
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return err
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}
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writer, err := client.Data()
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if err != nil {
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return err
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}
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_, err = writer.Write([]byte(message))
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if err != nil {
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return err
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}
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if err = writer.Close(); err != nil {
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return err
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}
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return client.Quit()
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}
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