Reset Your Password

package email import ( "bytes" "fmt" "html/template" "net/smtp" "time" "github.com/starfleetcptn/gomft/internal/config" ) // Service represents the email sending service type Service struct { Config *config.Config } // NewService creates a new email service func NewService(cfg *config.Config) *Service { return &Service{ Config: cfg, } } // SendPasswordResetEmail sends a password reset email to the specified email address func (s *Service) SendPasswordResetEmail(toEmail, username, resetToken string) error { if !s.Config.Email.Enabled { // If email is not enabled, just log it (you can redirect to the default logging logic) return fmt.Errorf("email service is disabled, reset link would be: %s/reset-password?token=%s", s.Config.BaseURL, resetToken) } resetLink := fmt.Sprintf("%s/reset-password?token=%s", s.Config.BaseURL, resetToken) // Create email data for template data := map[string]interface{}{ "Username": username, "ResetLink": resetLink, "AppName": "GoMFT", "Year": time.Now().Year(), "ExpiresHours": 0.25, // Token expiration time in hours (15 minutes = 0.25 hours) } // Generate email content subject := "Password Reset Request - GoMFT" htmlContent, err := s.generatePasswordResetEmailHTML(data) if err != nil { return err } // Send the email return s.sendEmail(toEmail, subject, htmlContent) } // generatePasswordResetEmailHTML generates the HTML content for password reset emails func (s *Service) generatePasswordResetEmailHTML(data map[string]interface{}) (string, error) { // HTML template for password reset email tmpl, err := template.New("passwordResetEmail").Parse(` Reset Your Password

Hello{{if .Username}} {{.Username}}{{end}},

We received a request to reset your password for your {{.AppName}} account. Click the button below to reset it:

Reset Password

If the button doesn't work, you can copy and paste the following link into your browser:

This link will expire in 15 minutes.

If you didn't request a password reset, you can ignore this email. Your password will remain unchanged.

`) if err != nil { return "", err } var result bytes.Buffer if err := tmpl.Execute(&result, data); err != nil { return "", err } return result.String(), nil } // sendEmail sends an email with the given subject and HTML content func (s *Service) sendEmail(toEmail, subject, htmlContent string) error { from := s.Config.Email.FromEmail if s.Config.Email.FromName != "" { from = fmt.Sprintf("%s <%s>", s.Config.Email.FromName, s.Config.Email.FromEmail) } // Construct email headers headers := make(map[string]string) headers["From"] = from headers["To"] = toEmail headers["Subject"] = subject headers["MIME-Version"] = "1.0" headers["Content-Type"] = "text/html; charset=UTF-8" if s.Config.Email.ReplyTo != "" { headers["Reply-To"] = s.Config.Email.ReplyTo } // Construct email message message := "" for key, value := range headers { message += fmt.Sprintf("%s: %s\r\n", key, value) } message += "\r\n" + htmlContent // Set up the SMTP server address addr := fmt.Sprintf("%s:%d", s.Config.Email.Host, s.Config.Email.Port) // Check if authentication is required if s.Config.Email.RequireAuth { // Use authenticated SMTP auth := smtp.PlainAuth("", s.Config.Email.Username, s.Config.Email.Password, s.Config.Email.Host) return smtp.SendMail(addr, auth, s.Config.Email.FromEmail, []string{toEmail}, []byte(message)) } else { // Use unauthenticated SMTP client, err := smtp.Dial(addr) if err != nil { return fmt.Errorf("failed to connect to SMTP server: %v", err) } defer client.Close() // Set up TLS if enabled if s.Config.Email.EnableTLS { if err := client.StartTLS(nil); err != nil { return fmt.Errorf("failed to start TLS: %v", err) } } // Set the sender and recipient if err := client.Mail(s.Config.Email.FromEmail); err != nil { return fmt.Errorf("failed to set sender: %v", err) } if err := client.Rcpt(toEmail); err != nil { return fmt.Errorf("failed to set recipient: %v", err) } // Send the email body w, err := client.Data() if err != nil { return fmt.Errorf("failed to get data writer: %v", err) } _, err = w.Write([]byte(message)) if err != nil { return fmt.Errorf("failed to write email data: %v", err) } err = w.Close() if err != nil { return fmt.Errorf("failed to close data writer: %v", err) } return client.Quit() } }