update: 2026-03-28 20:59

infogenie-backend-go/internal/service/email.go

@@ -0,0 +1,65 @@
+package service
+
+// 邮件服务模块
+// SSO 重构后，验证码发送/验证已由认证中心处理
+// 此文件仅保留通用工具函数，如有需要可用于未来的邮件通知功能
+
+import (
+	"crypto/tls"
+	"fmt"
+	"net/smtp"
+
+	"infogenie-backend/config"
+)
+
+// SendNotificationEmail 发送通知邮件（预留，供未来使用）
+func SendNotificationEmail(to, subject, htmlBody string) error {
+	return sendSMTPMail(to, subject, htmlBody)
+}
+
+func sendSMTPMail(to, subject, htmlBody string) error {
+	cfg := config.Cfg.Mail
+	from := cfg.Username
+
+	headers := fmt.Sprintf("From: %s\r\nTo: %s\r\nSubject: %s\r\nMIME-Version: 1.0\r\nContent-Type: text/html; charset=UTF-8\r\n\r\n",
+		from, to, subject)
+	msg := headers + htmlBody
+
+	addr := fmt.Sprintf("%s:%d", cfg.Host, cfg.Port)
+
+	tlsConfig := &tls.Config{
+		ServerName: cfg.Host,
+	}
+
+	conn, err := tls.Dial("tcp", addr, tlsConfig)
+	if err != nil {
+		return fmt.Errorf("TLS连接失败: %w", err)
+	}
+
+	client, err := smtp.NewClient(conn, cfg.Host)
+	if err != nil {
+		return fmt.Errorf("SMTP客户端创建失败: %w", err)
+	}
+	defer client.Quit()
+
+	auth := smtp.PlainAuth("", cfg.Username, cfg.Password, cfg.Host)
+	if err := client.Auth(auth); err != nil {
+		return fmt.Errorf("SMTP认证失败: %w", err)
+	}
+
+	if err := client.Mail(from); err != nil {
+		return err
+	}
+	if err := client.Rcpt(to); err != nil {
+		return err
+	}
+
+	w, err := client.Data()
+	if err != nil {
+		return err
+	}
+	if _, err := w.Write([]byte(msg)); err != nil {
+		return err
+	}
+	return w.Close()
+}