Add new captcha: cloudflare turnstile #22369
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,93 @@ | ||
| // Copyright 2023 The Gitea Authors. All rights reserved. | ||
| // SPDX-License-Identifier: MIT | ||
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| package turnstile | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "net/url" | ||
| "strings" | ||
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| "code.gitea.io/gitea/modules/json" | ||
| "code.gitea.io/gitea/modules/setting" | ||
| ) | ||
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| // 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"` | ||
| Action string `json:"login"` | ||
| Cdata string `json:"cdata"` | ||
| } | ||
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| // Verify calls Cloudflare Turnstile API to verify token | ||
| func Verify(ctx context.Context, response, ip string) (bool, error) { | ||
| // Cloudflare turnstile official access instruction address: https://developers.cloudflare.com/turnstile/get-started/server-side-validation/ | ||
| post := url.Values{ | ||
| "secret": {setting.Service.CfTurnstileSecret}, | ||
| "response": {response}, | ||
| "remoteip": {ip}, | ||
|
There was a problem hiding this comment. The Checked with hcaptcha code, hcaptcha also supports There was a problem hiding this comment. My personal opinion is the same as this answer. Therefore, I think it may be a better choice to carry
But the usage of There was a problem hiding this comment. Personally I prefer to keep the same behavior as hcaptcha (no It might still be fine to have the There was a problem hiding this comment. Ok, I'm going to remove There was a problem hiding this comment. It was removed in this commit 46aa739 |
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| } | ||
| // Basically a copy of http.PostForm, but with a context | ||
| req, err := http.NewRequestWithContext(ctx, http.MethodPost, | ||
| "https://challenges.cloudflare.com/turnstile/v0/siteverify", 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") | ||
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| resp, err := http.DefaultClient.Do(req) | ||
| if err != nil { | ||
| return false, fmt.Errorf("Failed to send CAPTCHA response: %s", err) | ||
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| } | ||
| defer resp.Body.Close() | ||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return false, fmt.Errorf("Failed to read CAPTCHA response: %s", err) | ||
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| } | ||
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| var jsonResponse Response | ||
| err = json.Unmarshal(body, &jsonResponse) | ||
| if err != nil { | ||
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| return false, fmt.Errorf("Failed to parse CAPTCHA response: %s", err) | ||
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| } | ||
| var respErr error | ||
| if len(jsonResponse.ErrorCodes) > 0 { | ||
| respErr = jsonResponse.ErrorCodes[0] | ||
| } | ||
| return jsonResponse.Success, respErr | ||
| } | ||
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| // ErrorCode is a reCaptcha error | ||
| type ErrorCode string | ||
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| // String fulfills the Stringer interface | ||
| func (e ErrorCode) String() string { | ||
| switch e { | ||
| case "missing-input-secret": | ||
| return "The secret parameter was not passed." | ||
| case "invalid-input-secret": | ||
| return "The secret parameter was invalid or did not exist." | ||
| case "missing-input-response": | ||
| return "The response parameter was not passed." | ||
| case "invalid-input-response": | ||
| return "The response parameter is invalid or has expired." | ||
| case "bad-request": | ||
| return "The request was rejected because it was malformed." | ||
| case "timeout-or-duplicate": | ||
| return "The response parameter has already been validated before." | ||
| case "internal-error": | ||
| return "An internal error happened while validating the response. The request can be retried." | ||
| } | ||
| return string(e) | ||
| } | ||
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| // Error fulfills the error interface | ||
| func (e ErrorCode) Error() string { | ||
| return e.String() | ||
| } | ||
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