Files
zeekayandHanzo Dev aa87442fdd Record upstream authorship centrally in NOTICE instead of in every file header
Source files keep their SPDX-License-Identifier and Hanzo copyright line; the
Gitea, Gogs and LFS Test Server copyrights they used to repeat now live once in
NOTICE, alongside LICENSE. The header lint accepts any copyright line above the
SPDX line, so it no longer demands an upstream one.

Co-authored-by: Hanzo Dev <[email protected]>
2026-09-10 17:50:35 -07:00

89 lines
2.5 KiB
Go

// Copyright 2026 Hanzo AI, Inc. All rights reserved.
// SPDX-License-Identifier: MIT
package recaptcha
import (
"context"
"fmt"
"io"
"net/http"
"net/url"
"strings"
"github.com/hanzoai/git/modules/json"
"github.com/hanzoai/git/modules/setting"
)
// Response is the structure of JSON returned from API
type Response struct {
Success bool `json:"success"`
ChallengeTS string `json:"challenge_ts"`
Hostname string `json:"hostname"`
ErrorCodes []ErrorCode `json:"error-codes"`
}
// Verify calls Google Recaptcha API to verify token
func Verify(ctx context.Context, response string) (bool, error) {
post := url.Values{
"secret": {setting.Service.RecaptchaSecret},
"response": {response},
}
reqURL := strings.TrimSuffix(setting.Service.RecaptchaURL, "/") + "/api/siteverify"
// Basically a copy of http.PostForm, but with a context
req, err := http.NewRequestWithContext(ctx, http.MethodPost, reqURL, strings.NewReader(post.Encode()))
if err != nil {
return false, fmt.Errorf("Failed to create CAPTCHA request: %w", err)
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return false, fmt.Errorf("Failed to send CAPTCHA response: %s", err)
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
if err != nil {
return false, fmt.Errorf("Failed to read CAPTCHA response: %s", err)
}
var jsonResponse Response
err = json.Unmarshal(body, &jsonResponse)
if err != nil {
return false, fmt.Errorf("Failed to parse CAPTCHA response: %s", err)
}
var respErr error
if len(jsonResponse.ErrorCodes) > 0 {
respErr = jsonResponse.ErrorCodes[0]
}
return jsonResponse.Success, respErr
}
// ErrorCode is a reCaptcha error
type ErrorCode string
// String fulfills the Stringer interface
func (e ErrorCode) String() string {
switch e {
case "missing-input-secret":
return "The secret parameter is missing."
case "invalid-input-secret":
return "The secret parameter is invalid or malformed."
case "missing-input-response":
return "The response parameter is missing."
case "invalid-input-response":
return "The response parameter is invalid or malformed."
case "bad-request":
return "The request is invalid or malformed."
case "timeout-or-duplicate":
return "The response is no longer valid: either is too old or has been used previously."
}
return string(e)
}
// Error fulfills the error interface
func (e ErrorCode) Error() string {
return e.String()
}