713 lines
19 KiB
Go
713 lines
19 KiB
Go
package email
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import (
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"context"
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"crypto/tls"
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"fmt"
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"html/template"
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"net"
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"net/smtp"
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"strings"
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"time"
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"go.uber.org/zap"
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"tyapi-server/internal/config"
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)
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// QQEmailService QQ邮箱服务
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type QQEmailService struct {
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config config.EmailConfig
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logger *zap.Logger
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}
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// EmailData 邮件数据
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type EmailData struct {
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To string `json:"to"`
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Subject string `json:"subject"`
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Content string `json:"content"`
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Data map[string]interface{} `json:"data"`
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}
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// InvoiceEmailData 发票邮件数据
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type InvoiceEmailData struct {
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CompanyName string `json:"company_name"`
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Amount string `json:"amount"`
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InvoiceType string `json:"invoice_type"`
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FileURL string `json:"file_url"`
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FileName string `json:"file_name"`
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ReceivingEmail string `json:"receiving_email"`
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ApprovedAt string `json:"approved_at"`
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}
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// NewQQEmailService 创建QQ邮箱服务
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func NewQQEmailService(config config.EmailConfig, logger *zap.Logger) *QQEmailService {
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return &QQEmailService{
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config: config,
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logger: logger,
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}
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}
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// SendEmail 发送邮件
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func (s *QQEmailService) SendEmail(ctx context.Context, data *EmailData) error {
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s.logger.Info("开始发送邮件",
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zap.String("to", data.To),
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zap.String("subject", data.Subject),
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)
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// 构建邮件内容
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message := s.buildEmailMessage(data)
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// 发送邮件
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err := s.sendSMTP(data.To, data.Subject, message)
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if err != nil {
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s.logger.Error("发送邮件失败",
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zap.String("to", data.To),
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zap.String("subject", data.Subject),
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zap.Error(err),
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)
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return fmt.Errorf("发送邮件失败: %w", err)
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}
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s.logger.Info("邮件发送成功",
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zap.String("to", data.To),
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zap.String("subject", data.Subject),
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)
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return nil
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}
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// SendInvoiceEmail 发送发票邮件
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func (s *QQEmailService) SendInvoiceEmail(ctx context.Context, data *InvoiceEmailData) error {
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s.logger.Info("开始发送发票邮件",
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zap.String("to", data.ReceivingEmail),
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zap.String("company_name", data.CompanyName),
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zap.String("amount", data.Amount),
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)
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// 构建邮件内容
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subject := "您的发票已开具成功"
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content := s.buildInvoiceEmailContent(data)
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emailData := &EmailData{
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To: data.ReceivingEmail,
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Subject: subject,
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Content: content,
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Data: map[string]interface{}{
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"company_name": data.CompanyName,
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"amount": data.Amount,
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"invoice_type": data.InvoiceType,
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"file_url": data.FileURL,
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"file_name": data.FileName,
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"approved_at": data.ApprovedAt,
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},
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}
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return s.SendEmail(ctx, emailData)
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}
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// buildEmailMessage 构建邮件消息
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func (s *QQEmailService) buildEmailMessage(data *EmailData) string {
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headers := make(map[string]string)
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headers["From"] = s.config.FromEmail
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headers["To"] = data.To
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headers["Subject"] = data.Subject
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headers["MIME-Version"] = "1.0"
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headers["Content-Type"] = "text/html; charset=UTF-8"
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var message strings.Builder
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for key, value := range headers {
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message.WriteString(fmt.Sprintf("%s: %s\r\n", key, value))
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}
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message.WriteString("\r\n")
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message.WriteString(data.Content)
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return message.String()
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}
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// buildInvoiceEmailContent 构建发票邮件内容
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func (s *QQEmailService) buildInvoiceEmailContent(data *InvoiceEmailData) string {
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htmlTemplate := `
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>发票开具成功通知</title>
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<style>
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@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: 'Inter', 'Microsoft YaHei', Arial, sans-serif;
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line-height: 1.6;
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color: #2d3748;
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background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
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min-height: 100vh;
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padding: 20px;
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}
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.container {
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max-width: 650px;
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margin: 0 auto;
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background: #ffffff;
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border-radius: 24px;
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box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.08);
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overflow: hidden;
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border: 1px solid #e2e8f0;
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}
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.header {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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color: white;
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padding: 50px 40px 40px;
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text-align: center;
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position: relative;
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overflow: hidden;
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}
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.header::before {
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content: '';
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position: absolute;
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top: -50%;
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left: -50%;
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width: 200%;
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height: 200%;
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background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
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animation: float 6s ease-in-out infinite;
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}
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@keyframes float {
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0%, 100% { transform: translateY(0px) rotate(0deg); }
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50% { transform: translateY(-20px) rotate(180deg); }
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}
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.success-icon {
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font-size: 48px;
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margin-bottom: 16px;
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position: relative;
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z-index: 1;
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opacity: 0.9;
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}
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.header h1 {
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font-size: 24px;
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font-weight: 500;
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margin: 0;
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position: relative;
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z-index: 1;
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letter-spacing: 0.5px;
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}
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.content {
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padding: 0;
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}
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.greeting {
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padding: 40px 40px 20px;
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text-align: center;
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background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
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}
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.greeting p {
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font-size: 16px;
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color: #4a5568;
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margin-bottom: 8px;
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font-weight: 400;
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}
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.access-section {
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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padding: 40px;
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text-align: center;
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position: relative;
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overflow: hidden;
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margin: 0 20px 30px;
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border-radius: 20px;
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}
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.access-section::before {
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content: '';
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position: absolute;
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top: -50%;
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left: -50%;
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width: 200%;
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height: 200%;
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background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
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animation: shimmer 8s ease-in-out infinite;
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}
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@keyframes shimmer {
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0%, 100% { transform: translateX(-100%) translateY(-100%) rotate(0deg); }
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50% { transform: translateX(100%) translateY(100%) rotate(180deg); }
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}
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.access-section h3 {
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color: white;
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font-size: 22px;
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font-weight: 600;
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margin-bottom: 12px;
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position: relative;
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z-index: 1;
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}
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.access-section p {
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color: rgba(255, 255, 255, 0.9);
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margin-bottom: 25px;
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position: relative;
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z-index: 1;
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font-size: 15px;
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}
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.access-btn {
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display: inline-block;
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background: rgba(255, 255, 255, 0.15);
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color: white;
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padding: 16px 32px;
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text-decoration: none;
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border-radius: 50px;
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font-weight: 600;
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font-size: 15px;
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border: 2px solid rgba(255, 255, 255, 0.2);
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transition: all 0.3s ease;
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position: relative;
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z-index: 1;
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backdrop-filter: blur(10px);
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letter-spacing: 0.3px;
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}
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.access-btn:hover {
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background: rgba(255, 255, 255, 0.25);
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transform: translateY(-3px);
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box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
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border-color: rgba(255, 255, 255, 0.3);
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}
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.info-section {
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padding: 0 40px 40px;
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}
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.info-grid {
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display: grid;
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grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
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gap: 20px;
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margin: 30px 0;
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}
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.info-item {
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background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
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padding: 24px;
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border-radius: 16px;
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border: 1px solid #e2e8f0;
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position: relative;
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overflow: hidden;
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transition: all 0.3s ease;
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box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
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}
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.info-item:hover {
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transform: translateY(-2px);
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box-shadow: 0 12px 25px -5px rgba(102, 126, 234, 0.1);
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border-color: #cbd5e0;
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}
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.info-item::before {
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content: '';
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position: absolute;
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top: 0;
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left: 0;
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width: 4px;
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height: 100%;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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border-radius: 0 2px 2px 0;
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}
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.info-label {
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font-weight: 600;
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color: #718096;
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display: block;
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margin-bottom: 8px;
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font-size: 13px;
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text-transform: uppercase;
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letter-spacing: 0.8px;
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}
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.info-value {
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color: #2d3748;
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font-size: 16px;
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font-weight: 500;
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position: relative;
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z-index: 1;
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}
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.notes-section {
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background: linear-gradient(135deg, #f0fff4 0%, #ffffff 100%);
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padding: 30px;
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border-radius: 16px;
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margin: 30px 0;
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border: 1px solid #c6f6d5;
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position: relative;
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}
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.notes-section::before {
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content: '';
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position: absolute;
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top: 0;
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left: 0;
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width: 4px;
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height: 100%;
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background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
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border-radius: 0 2px 2px 0;
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}
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.notes-section h4 {
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color: #2f855a;
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font-size: 16px;
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font-weight: 600;
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margin-bottom: 16px;
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display: flex;
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align-items: center;
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}
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.notes-section h4::before {
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content: '📋';
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margin-right: 8px;
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font-size: 18px;
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}
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.notes-section ul {
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list-style: none;
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padding: 0;
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}
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.notes-section li {
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color: #4a5568;
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margin-bottom: 10px;
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padding-left: 24px;
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position: relative;
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font-size: 14px;
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}
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.notes-section li::before {
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content: '✓';
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color: #48bb78;
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font-weight: bold;
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position: absolute;
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left: 0;
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font-size: 16px;
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}
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.footer {
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background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
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color: rgba(255, 255, 255, 0.8);
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padding: 35px 40px;
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text-align: center;
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font-size: 14px;
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}
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.footer p {
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margin-bottom: 8px;
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line-height: 1.5;
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}
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.footer-divider {
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width: 60px;
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height: 2px;
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background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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margin: 20px auto;
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border-radius: 1px;
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}
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@media (max-width: 600px) {
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.container {
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margin: 10px;
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border-radius: 20px;
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}
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.header {
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padding: 40px 30px 30px;
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}
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.greeting {
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padding: 30px 30px 20px;
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}
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.access-section {
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margin: 0 15px 25px;
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padding: 30px 25px;
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}
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.info-section {
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padding: 0 30px 30px;
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}
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.info-grid {
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grid-template-columns: 1fr;
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gap: 16px;
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}
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.footer {
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padding: 30px 30px;
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}
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}
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</style>
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</head>
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<body>
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<div class="container">
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<div class="header">
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<div class="success-icon">✓</div>
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<h1>发票已开具完成</h1>
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</div>
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<div class="content">
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<div class="greeting">
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<p>尊敬的用户，您好！</p>
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<p>您的发票申请已审核通过，发票已成功开具。</p>
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</div>
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<div class="access-section">
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<h3>📄 发票访问链接</h3>
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<p>您的发票已准备就绪，请点击下方按钮访问查看页面</p>
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<a href="{{.FileURL}}" class="access-btn" target="_blank">
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🔗 访问发票页面
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</a>
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</div>
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<div class="info-section">
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<div class="info-grid">
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<div class="info-item">
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<span class="info-label">公司名称</span>
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<span class="info-value">{{.CompanyName}}</span>
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</div>
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<div class="info-item">
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<span class="info-label">发票金额</span>
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<span class="info-value">¥{{.Amount}}</span>
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</div>
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<div class="info-item">
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<span class="info-label">发票类型</span>
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<span class="info-value">{{.InvoiceType}}</span>
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</div>
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<div class="info-item">
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<span class="info-label">开具时间</span>
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<span class="info-value">{{.ApprovedAt}}</span>
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</div>
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</div>
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<div class="notes-section">
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<h4>注意事项</h4>
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<ul>
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<li>访问页面后可在页面内下载发票文件</li>
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<li>请妥善保管发票文件，建议打印存档</li>
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<li>如有疑问，请回到我们平台进行下载</li>
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</ul>
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</div>
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</div>
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</div>
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<div class="footer">
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<p>此邮件由系统自动发送，请勿回复</p>
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<div class="footer-divider"></div>
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<p>天远数据 API 服务平台</p>
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<p>发送时间：{{.CurrentTime}}</p>
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</div>
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</div>
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</body>
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</html>`
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// 解析模板
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tmpl, err := template.New("invoice_email").Parse(htmlTemplate)
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if err != nil {
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s.logger.Error("解析邮件模板失败", zap.Error(err))
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return s.buildSimpleInvoiceEmail(data)
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}
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// 准备模板数据
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templateData := struct {
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CompanyName string
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Amount string
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InvoiceType string
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FileURL string
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FileName string
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ApprovedAt string
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CurrentTime string
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Domain string
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}{
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CompanyName: data.CompanyName,
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Amount: data.Amount,
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InvoiceType: data.InvoiceType,
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FileURL: data.FileURL,
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FileName: data.FileName,
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ApprovedAt: data.ApprovedAt,
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CurrentTime: time.Now().Format("2006-01-02 15:04:05"),
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Domain: s.config.Domain,
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}
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// 执行模板
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var content strings.Builder
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err = tmpl.Execute(&content, templateData)
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if err != nil {
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s.logger.Error("执行邮件模板失败", zap.Error(err))
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return s.buildSimpleInvoiceEmail(data)
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}
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return content.String()
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}
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// buildSimpleInvoiceEmail 构建简单的发票邮件内容（备用方案）
|
||
func (s *QQEmailService) buildSimpleInvoiceEmail(data *InvoiceEmailData) string {
|
||
return fmt.Sprintf(`
|
||
发票开具成功通知
|
||
|
||
尊敬的用户，您好！
|
||
|
||
您的发票申请已审核通过，发票已成功开具。
|
||
|
||
发票信息：
|
||
- 公司名称：%s
|
||
- 发票金额：¥%s
|
||
- 发票类型：%s
|
||
- 开具时间：%s
|
||
|
||
发票文件下载链接：%s
|
||
文件名：%s
|
||
|
||
如有疑问，请访问控制台查看详细信息：https://%s
|
||
|
||
天远数据 API 服务平台
|
||
%s
|
||
`, data.CompanyName, data.Amount, data.InvoiceType, data.ApprovedAt, data.FileURL, data.FileName, s.config.Domain, time.Now().Format("2006-01-02 15:04:05"))
|
||
}
|
||
|
||
// sendSMTP 通过SMTP发送邮件
|
||
func (s *QQEmailService) sendSMTP(to, subject, message string) error {
|
||
// 构建认证信息
|
||
auth := smtp.PlainAuth("", s.config.Username, s.config.Password, s.config.Host)
|
||
|
||
// 构建收件人列表
|
||
toList := []string{to}
|
||
|
||
// 发送邮件
|
||
if s.config.UseSSL {
|
||
// QQ邮箱587端口使用STARTTLS，465端口使用直接SSL
|
||
if s.config.Port == 587 {
|
||
// 使用STARTTLS (587端口)
|
||
conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", s.config.Host, s.config.Port))
|
||
if err != nil {
|
||
return fmt.Errorf("连接SMTP服务器失败: %w", err)
|
||
}
|
||
defer conn.Close()
|
||
|
||
client, err := smtp.NewClient(conn, s.config.Host)
|
||
if err != nil {
|
||
return fmt.Errorf("创建SMTP客户端失败: %w", err)
|
||
}
|
||
defer client.Close()
|
||
|
||
// 启用STARTTLS
|
||
if err = client.StartTLS(&tls.Config{
|
||
ServerName: s.config.Host,
|
||
InsecureSkipVerify: false,
|
||
}); err != nil {
|
||
return fmt.Errorf("启用STARTTLS失败: %w", err)
|
||
}
|
||
|
||
// 认证
|
||
if err = client.Auth(auth); err != nil {
|
||
return fmt.Errorf("SMTP认证失败: %w", err)
|
||
}
|
||
|
||
// 设置发件人
|
||
if err = client.Mail(s.config.FromEmail); err != nil {
|
||
return fmt.Errorf("设置发件人失败: %w", err)
|
||
}
|
||
|
||
// 设置收件人
|
||
for _, recipient := range toList {
|
||
if err = client.Rcpt(recipient); err != nil {
|
||
return fmt.Errorf("设置收件人失败: %w", err)
|
||
}
|
||
}
|
||
|
||
// 发送邮件内容
|
||
writer, err := client.Data()
|
||
if err != nil {
|
||
return fmt.Errorf("准备发送邮件内容失败: %w", err)
|
||
}
|
||
defer writer.Close()
|
||
|
||
_, err = writer.Write([]byte(message))
|
||
if err != nil {
|
||
return fmt.Errorf("发送邮件内容失败: %w", err)
|
||
}
|
||
} else {
|
||
// 使用直接SSL连接 (465端口)
|
||
tlsConfig := &tls.Config{
|
||
ServerName: s.config.Host,
|
||
InsecureSkipVerify: false,
|
||
}
|
||
|
||
conn, err := tls.Dial("tcp", fmt.Sprintf("%s:%d", s.config.Host, s.config.Port), tlsConfig)
|
||
if err != nil {
|
||
return fmt.Errorf("连接SMTP服务器失败: %w", err)
|
||
}
|
||
defer conn.Close()
|
||
|
||
client, err := smtp.NewClient(conn, s.config.Host)
|
||
if err != nil {
|
||
return fmt.Errorf("创建SMTP客户端失败: %w", err)
|
||
}
|
||
defer client.Close()
|
||
|
||
// 认证
|
||
if err = client.Auth(auth); err != nil {
|
||
return fmt.Errorf("SMTP认证失败: %w", err)
|
||
}
|
||
|
||
// 设置发件人
|
||
if err = client.Mail(s.config.FromEmail); err != nil {
|
||
return fmt.Errorf("设置发件人失败: %w", err)
|
||
}
|
||
|
||
// 设置收件人
|
||
for _, recipient := range toList {
|
||
if err = client.Rcpt(recipient); err != nil {
|
||
return fmt.Errorf("设置收件人失败: %w", err)
|
||
}
|
||
}
|
||
|
||
// 发送邮件内容
|
||
writer, err := client.Data()
|
||
if err != nil {
|
||
return fmt.Errorf("准备发送邮件内容失败: %w", err)
|
||
}
|
||
defer writer.Close()
|
||
|
||
_, err = writer.Write([]byte(message))
|
||
if err != nil {
|
||
return fmt.Errorf("发送邮件内容失败: %w", err)
|
||
}
|
||
}
|
||
} else {
|
||
// 使用普通连接
|
||
err := smtp.SendMail(
|
||
fmt.Sprintf("%s:%d", s.config.Host, s.config.Port),
|
||
auth,
|
||
s.config.FromEmail,
|
||
toList,
|
||
[]byte(message),
|
||
)
|
||
if err != nil {
|
||
return fmt.Errorf("发送邮件失败: %w", err)
|
||
}
|
||
}
|
||
|
||
return nil
|
||
}
|