Initial commit: 商品售卖网站

backend/internal/utils/email.go

@@ -0,0 +1,50 @@
+package utils
+
+import (
+	"fmt"
+	"net/smtp"
+
+	"sale/internal/config"
+)
+
+func SendEmail(to, subject, body string) error {
+	cfg := config.AppConfig.SMTP
+	if cfg.Host == "" {
+		return fmt.Errorf("SMTP not configured")
+	}
+
+	auth := smtp.PlainAuth("", cfg.User, cfg.Password, cfg.Host)
+
+	msg := fmt.Sprintf(
+		"From: %s\r\nTo: %s\r\nSubject: %s\r\nContent-Type: text/html; charset=UTF-8\r\n\r\n%s",
+		cfg.From, to, subject, body,
+	)
+
+	return smtp.SendMail(
+		fmt.Sprintf("%s:%s", cfg.Host, cfg.Port),
+		auth,
+		cfg.From,
+		[]string{to},
+		[]byte(msg),
+	)
+}
+
+func SendVerifyEmail(to, code string) error {
+	subject := "邮箱验证码"
+	body := fmt.Sprintf(`
+		<h2>邮箱验证</h2>
+		<p>您的验证码是：<strong style="font-size:24px;color:#1890ff;">%s</strong></p>
+		<p>验证码有效期为30分钟，请尽快使用。</p>
+	`, code)
+	return SendEmail(to, subject, body)
+}
+
+func SendResetPasswordEmail(to, code string) error {
+	subject := "重置密码验证码"
+	body := fmt.Sprintf(`
+		<h2>重置密码</h2>
+		<p>您的验证码是：<strong style="font-size:24px;color:#1890ff;">%s</strong></p>
+		<p>验证码有效期为30分钟，请尽快使用。</p>
+	`, code)
+	return SendEmail(to, subject, body)
+}