80 lines
1.6 KiB
Go
80 lines
1.6 KiB
Go
package controllers
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import (
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"bytes"
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"fmt"
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"html/template"
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"log"
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"net/smtp"
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"os"
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)
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type Config struct {
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Server string
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Port int
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Email string
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Password string
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}
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var config Config = Config{
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Server: "smtp.gmail.com",
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Port: 587,
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Email: os.Getenv("SYSTEM_EMAIL"),
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Password: os.Getenv("SYSTEM_PASSWORD"),
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}
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type Request struct {
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from string
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to []string
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subject string
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body string
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}
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const (
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MIME = "MIME-version: 1.0;\nContent-Type: text/html; charset=\"UTF-8\";\n\n"
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)
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func NewRequest(to []string, subject string) *Request {
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return &Request{
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to: to,
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subject: subject,
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}
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}
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func (r *Request) parseTemplate(fileName string, data interface{}) error {
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t, err := template.ParseFiles(fileName)
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if err != nil {
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return err
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}
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buffer := new(bytes.Buffer)
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if err = t.Execute(buffer, data); err != nil {
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return err
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}
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r.body = buffer.String()
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return nil
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}
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func (r *Request) sendMail() bool {
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body := "To: " + r.to[0] + "\r\nSubject: " + r.subject + "\r\n" + MIME + "\r\n" + r.body
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SMTP := fmt.Sprintf("%s:%d", config.Server, config.Port)
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if err := smtp.SendMail(SMTP, smtp.PlainAuth("", config.Email, config.Password, config.Server), config.Email, r.to, []byte(body)); err != nil {
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return false
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}
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return true
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}
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func (r *Request) Send(templateName string, items interface{}) bool {
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err := r.parseTemplate(templateName, items)
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if err != nil {
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log.Fatal(err)
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return false
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}
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if ok := r.sendMail(); ok {
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log.Printf("Email has been sent to %s\n", r.to)
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return true
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} else {
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log.Printf("Failed to send the email to %s\n", r.to)
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return false
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}
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}
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