main.go
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package main
import (
"html/template"
"log"
"net/http"
"net/smtp"
"os"
)
func main() {
http.HandleFunc("/", rootHandler)
http.HandleFunc("/confirmation", confirmationHandler)
log.Fatal(http.ListenAndServe(":8080", nil))
}
func rootHandler(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "GET":
render(w, "templates/form.html", nil)
case "POST":
// message := r.info or whatever
sendMessage()
// re-route to /confirmation
}
}
func confirmationHandler(w http.ResponseWriter, r *http.Request) {
render(w, "templates/confirmation.html", nil)
}
func render(w http.ResponseWriter, filename string, data interface{}) {
tmpl, err := template.ParseFiles(filename)
if err != nil {
log.Println(err)
http.Error(w, "Sorry, something went wrong", http.StatusInternalServerError)
}
if err := tmpl.Execute(w, data); err != nil {
log.Println(err)
http.Error(w, "Sorry, something went wrong", http.StatusInternalServerError)
}
}
func sendMessage() {
auth := smtp.PlainAuth("", os.Getenv("SMTP_FROM"), os.Getenv("SMTP_PASS"), os.Getenv("SMTP_SERVER"))
to := []string{os.Getenv("SMTP_TO")}
msg := []byte("From: " + os.Getenv("SMTP_FROM") + "\r\n" +
"To: " + os.Getenv("SMTP_TO") + "\r\n" +
"Subject: Form completion\r\n" +
"\r\n" +
"Body.\r\n")
err := smtp.SendMail(os.Getenv("SMTP_SERVER") + ":" + os.Getenv("SMTP_PORT"), auth, os.Getenv("SMTP_FROM"), to, msg)
if err != nil {
log.Fatal(err)
}
}