From 81a5c8bd7d58a93f1ab2249b8465d055c71408da Mon Sep 17 00:00:00 2001
From: "corrado.mulas" <corrado.mulas@runpolito.it>
Date: Wed, 20 Nov 2024 01:39:04 +0100
Subject: [PATCH] First commit

---
 recaptcha.go | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/recaptcha.go b/recaptcha.go
index 9db56f2..da90ad7 100644
--- a/recaptcha.go
+++ b/recaptcha.go
@@ -3,39 +3,42 @@ package main
 import (
 	"bytes"
 	"encoding/json"
-	"errors"
+	"fmt"
 	"net/http"
 	"os"
 )
 
-func validateRecaptcha(token string) (bool, error) {
+func validateRecaptcha(captchaToken string) (bool, error) {
 	secret := os.Getenv("CAPTCHA_SERVER_KEY")
 	if secret == "" {
-		return false, errors.New("missing CAPTCHA_SERVER_KEY")
+		return false, fmt.Errorf("CAPTCHA_SERVER_KEY is not set")
 	}
 
 	url := "https://www.google.com/recaptcha/api/siteverify"
 	payload := map[string]string{
 		"secret":   secret,
-		"response": token,
+		"response": captchaToken,
 	}
-	jsonPayload, _ := json.Marshal(payload)
+	payloadBytes, _ := json.Marshal(payload)
 
-	resp, err := http.Post(url, "application/json", bytes.NewBuffer(jsonPayload))
+	resp, err := http.Post(url, "application/json", bytes.NewBuffer(payloadBytes))
 	if err != nil {
-		return false, err
+		return false, fmt.Errorf("reCAPTCHA API request failed: %v", err)
 	}
 	defer resp.Body.Close()
 
 	var result map[string]interface{}
 	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
-		return false, err
+		return false, fmt.Errorf("failed to parse reCAPTCHA API response: %v", err)
 	}
 
 	success, ok := result["success"].(bool)
-	if !ok {
-		return false, errors.New("invalid reCAPTCHA response format")
+	if !ok || !success {
+		if errors, exists := result["error-codes"]; exists {
+			fmt.Printf("reCAPTCHA error codes: %+v\n", errors)
+		}
+		return false, fmt.Errorf("reCAPTCHA validation failed")
 	}
 
-	return success, nil
+	return true, nil
 }