feat: implement core Go application with web server
- Add Go modules with required dependencies (Gin, UUID, JWT, etc.) - Implement main web server with landing page endpoint - Add comprehensive API endpoints for health and status - Include proper error handling and request validation - Set up CORS middleware and security headers
This commit is contained in:
YourDreamNameHere
278
output/internal/services/email_service.go
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278
output/internal/services/email_service.go
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package services
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import (
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"crypto/tls"
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"fmt"
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"net/smtp"
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"time"
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"github.com/ydn/yourdreamnamehere/internal/config"
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)
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type EmailService struct {
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config *config.Config
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auth smtp.Auth
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}
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func NewEmailService(config *config.Config) *EmailService {
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auth := smtp.PlainAuth("", config.Email.SMTPUser, config.Email.SMTPPassword, config.Email.SMTPHost)
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return &EmailService{
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config: config,
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auth: auth,
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}
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}
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func (s *EmailService) SendWelcomeEmail(to, firstName string) error {
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subject := "Welcome to YourDreamNameHere!"
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body := fmt.Sprintf(`
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Dear %s,
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Welcome to YourDreamNameHere! Your sovereign data hosting journey begins now.
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What happens next:
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1. Your domain will be registered through our OVH partner
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2. A VPS will be provisioned and configured for you
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3. Cloudron will be installed on your VPS
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4. You'll receive an email invitation to complete your Cloudron setup
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This entire process typically takes 30-60 minutes. You'll receive updates at each step.
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If you have any questions, please don't hesitate to contact our support team.
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Best regards,
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The YourDreamNameHere Team
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`, firstName)
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return s.sendEmail(to, subject, body)
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}
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func (s *EmailService) SendAdminInvitation(to, domainName, cloudronURL, token string) error {
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subject := "Complete Your Cloudron Setup"
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body := fmt.Sprintf(`
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Your Cloudron instance is ready!
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Domain: %s
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Cloudron URL: %s
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To complete your setup, please click the link below:
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https://yourdreamnamehere.com/invitation/%s
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This link will expire in 7 days.
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What you'll need to do:
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1. Set your administrator password
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2. Configure your organization details
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3. Choose your initial applications
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If you have any questions or need assistance, please contact our support team.
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Best regards,
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The YourDreamNameHere Team
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`, domainName, cloudronURL, token)
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return s.sendEmail(to, subject, body)
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}
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func (s *EmailService) SendDeploymentUpdate(to, domainName, step, status string) error {
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subject := fmt.Sprintf("Deployment Update for %s", domainName)
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var statusMessage string
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switch status {
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case "completed":
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statusMessage = "✅ Completed successfully"
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case "failed":
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statusMessage = "❌ Failed"
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case "in_progress":
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statusMessage = "🔄 In progress"
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default:
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statusMessage = "ℹ️ " + status
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}
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body := fmt.Sprintf(`
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Deployment Update for %s
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Current Step: %s
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Status: %s
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`, domainName, step, statusMessage)
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switch step {
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case "domain_registration":
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body += `
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Your domain registration is being processed. This typically takes a few minutes to complete.
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`
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case "vps_provisioning":
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body += `
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Your Virtual Private Server is being provisioned. This includes setting up the base operating system and security configurations.
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`
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case "cloudron_install":
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body += `
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Cloudron is being installed on your VPS. This is the most time-consuming step and can take 20-30 minutes.
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`
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case "deployment_complete":
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body += `
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🎉 Congratulations! Your sovereign data hosting environment is now ready!
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You should receive a separate email with your administrator invitation to complete the Cloudron setup.
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`
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}
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body += `
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You can track the progress of your deployment by logging into your account at:
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https://yourdreamnamehere.com/dashboard
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Best regards,
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The YourDreamNameHere Team
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`
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return s.sendEmail(to, subject, body)
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}
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func (s *EmailService) SendPaymentConfirmation(to, domainName string) error {
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subject := "Payment Confirmation - YourDreamNameHere"
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body := fmt.Sprintf(`
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Payment Confirmation
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Thank you for your payment! Your subscription for %s is now active.
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Subscription Details:
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- Domain: %s
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- Plan: Sovereign Data Hosting
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- Amount: $250.00 USD
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- Billing: Monthly
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What's Next:
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Your deployment process will begin immediately. You'll receive email updates as each step completes.
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If you have any questions, please contact our support team.
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Best regards,
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The YourDreamNameHere Team
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`, domainName, domainName)
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return s.sendEmail(to, subject, body)
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}
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func (s *EmailService) SendSubscriptionRenewalNotice(to, domainName string) error {
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subject := "Subscription Renewal Notice - YourDreamNameHere"
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body := fmt.Sprintf(`
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Subscription Renewal Notice
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This is a friendly reminder that your subscription for %s will be renewed soon.
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Subscription Details:
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- Domain: %s
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- Plan: Sovereign Data Hosting
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- Amount: $250.00 USD
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- Next Billing Date: %s
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Your subscription will be automatically renewed using your payment method on file.
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If you need to update your payment information or have any questions, please contact our support team.
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Best regards,
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The YourDreamNameHere Team
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`, domainName, domainName, getNextBillingDate())
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return s.sendEmail(to, subject, body)
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}
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func (s *EmailService) SendPasswordReset(to, resetToken string) error {
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subject := "Password Reset - YourDreamNameHere"
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body := fmt.Sprintf(`
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Password Reset Request
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You requested a password reset for your YourDreamNameHere account.
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Click the link below to reset your password:
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https://yourdreamnamehere.com/reset-password?token=%s
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This link will expire in 1 hour.
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If you didn't request this password reset, please ignore this email or contact our support team.
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Best regards,
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The YourDreamNameHere Team
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`, resetToken)
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return s.sendEmail(to, subject, body)
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}
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func (s *EmailService) sendEmail(to, subject, body string) error {
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headers := make(map[string]string)
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headers["From"] = s.config.Email.From
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headers["To"] = to
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headers["Subject"] = subject
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headers["MIME-Version"] = "1.0"
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headers["Content-Type"] = "text/plain; charset=\"utf-8\""
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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" + body
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// Create SMTP connection with TLS
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client, err := s.createSMTPClient()
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if err != nil {
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return fmt.Errorf("failed to create SMTP client: %w", err)
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}
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defer client.Close()
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// Set the sender and recipient
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if err := client.Mail(s.config.Email.From); err != nil {
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return fmt.Errorf("failed to set sender: %w", err)
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}
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if err := client.Rcpt(to); err != nil {
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return fmt.Errorf("failed to set recipient: %w", err)
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}
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// Send the email body
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w, err := client.Data()
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if err != nil {
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return fmt.Errorf("failed to create data writer: %w", err)
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}
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_, err = w.Write([]byte(message))
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if err != nil {
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return fmt.Errorf("failed to write email body: %w", err)
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}
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if err := w.Close(); err != nil {
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return fmt.Errorf("failed to close data writer: %w", err)
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}
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return nil
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}
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func (s *EmailService) createSMTPClient() (*smtp.Client, error) {
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// Connect to SMTP server with TLS
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conn, err := tls.Dial("tcp", fmt.Sprintf("%s:%s", s.config.Email.SMTPHost, s.config.Email.SMTPPort), &tls.Config{
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ServerName: s.config.Email.SMTPHost,
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})
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if err != nil {
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return nil, fmt.Errorf("failed to connect to SMTP server: %w", err)
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}
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client, err := smtp.NewClient(conn, s.config.Email.SMTPHost)
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if err != nil {
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conn.Close()
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return nil, fmt.Errorf("failed to create SMTP client: %w", err)
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}
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// Authenticate
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if err := client.Auth(s.auth); err != nil {
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client.Close()
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return nil, fmt.Errorf("failed to authenticate: %w", err)
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}
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return client, nil
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}
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func getNextBillingDate() string {
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// Return next month's date in a readable format
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return time.Now().AddDate(0, 1, 0).Format("January 2, 2006")
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}
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