98 lines
2.5 KiB
Go
98 lines
2.5 KiB
Go
package contact
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import (
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"encoding/json"
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"errors"
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"fmt"
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"github.com/dchest/captcha"
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"gopkg.in/gomail.v2"
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"net/http"
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"netoik.io/netoik-website/pkg/api"
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"netoik.io/netoik-website/pkg/conf"
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"os"
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"path/filepath"
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)
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type request struct {
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Name string `json:"name"`
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Email string `json:"email"`
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Phone string `json:"phone"`
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Company string `json:"company"`
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Message string `json:"message"`
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CaptchaId string `json:"captchaId"`
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CaptchaDigits string `json:"captchaDigits"`
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}
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func HandleSend(w http.ResponseWriter, r *http.Request) {
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// Check method
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if r.Method != "POST" {
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api.Reply(w, 405, api.Answer{})
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return
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}
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// Parse json from request body
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var data request
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if err := json.NewDecoder(r.Body).Decode(&data); err != nil {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if data.Name == "" || len(data.Name) > 200 {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if data.Email == "" || len(data.Email) > 200 {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if len(data.Phone) > 200 {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if len(data.Company) > 200 {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if data.Message == "" || len(data.Message) > 10000 {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if data.CaptchaId == "" {
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api.Reply(w, 400, api.Answer{})
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return
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}
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if data.CaptchaDigits == "" {
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api.Reply(w, 400, api.Answer{})
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return
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}
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// Check captcha digits
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if !captcha.VerifyString(data.CaptchaId, data.CaptchaDigits) {
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api.Reply(w, 418, api.Answer{})
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return
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}
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// Captcha has been verified, so remove image
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path := filepath.Join(conf.Conf.CaptchaDirectory, data.CaptchaId+".png")
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if err := os.Remove(path); err != nil && !errors.Is(err, os.ErrNotExist) {
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fmt.Fprintf(os.Stderr, "ERROR: cannot remove captcha image %q: %s", path, err.Error())
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}
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// Build email
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msg := gomail.NewMessage()
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msg.SetHeader("From", conf.Conf.SMTPUsername)
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msg.SetHeader("To", conf.Conf.SMTPReceiver)
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msg.SetHeader("Subject", "Message from www.netoik.io")
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msg.SetBody("text/plain", fmt.Sprintf(
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"You have received a message from frontend.\nname: %s\nemail: %s\nphone: %s\ncompany: %s\n%s",
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data.Name, data.Email, data.Phone, data.Company, data.Message))
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// Configure SMTP dialer and send email
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dialer := gomail.NewDialer(conf.Conf.SMTPHost, conf.Conf.SMTPPort, conf.Conf.SMTPUsername, conf.Conf.SMTPPassword)
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if err := dialer.DialAndSend(msg); err != nil {
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fmt.Fprintf(os.Stderr, "cannot send email: %s\n", err.Error())
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api.Reply(w, 400, api.Answer{})
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return
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}
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api.Reply(w, 200, api.Answer{Success: true})
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}
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