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Add new captcha: cloudflare turnstile (#22369)
Added a new captcha(cloudflare turnstile) and its corresponding document. Cloudflare turnstile official instructions are here: https://developers.cloudflare.com/turnstile Signed-off-by: ByLCY <bylcy@bylcy.dev> Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: Jason Song <i@wolfogre.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| // Copyright 2023 The Gitea Authors. All rights reserved. | ||
| // SPDX-License-Identifier: MIT | ||
|
|
||
| package turnstile | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "net/url" | ||
| "strings" | ||
|
|
||
| "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 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}, | ||
| } | ||
| // 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") | ||
|
|
||
| resp, err := http.DefaultClient.Do(req) | ||
| if err != nil { | ||
| return false, fmt.Errorf("Failed to send CAPTCHA response: %w", err) | ||
| } | ||
| defer resp.Body.Close() | ||
| body, err := io.ReadAll(resp.Body) | ||
| if err != nil { | ||
| return false, fmt.Errorf("Failed to read CAPTCHA response: %w", err) | ||
| } | ||
|
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| var jsonResponse Response | ||
| if err := json.Unmarshal(body, &jsonResponse); err != nil { | ||
| return false, fmt.Errorf("Failed to parse CAPTCHA response: %w", 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) | ||
| } | ||
|
|
||
| // Error fulfills the error interface | ||
| func (e ErrorCode) Error() string { | ||
| return e.String() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| import {isDarkTheme} from '../utils.js'; | ||
|
|
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| export async function initCaptcha() { | ||
| const captchaEl = document.querySelector('#captcha'); | ||
| if (!captchaEl) return; | ||
|
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| const siteKey = captchaEl.getAttribute('data-sitekey'); | ||
| const isDark = isDarkTheme(); | ||
|
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| const params = { | ||
| sitekey: siteKey, | ||
| theme: isDark ? 'dark' : 'light' | ||
| }; | ||
|
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| switch (captchaEl.getAttribute('data-captcha-type')) { | ||
| case 'g-recaptcha': { | ||
| if (window.grecaptcha) { | ||
| window.grecaptcha.ready(() => { | ||
| window.grecaptcha.render(captchaEl, params); | ||
| }); | ||
| } | ||
| break; | ||
| } | ||
| case 'cf-turnstile': { | ||
| if (window.turnstile) { | ||
| window.turnstile.render(captchaEl, params); | ||
| } | ||
| break; | ||
| } | ||
| case 'h-captcha': { | ||
| if (window.hcaptcha) { | ||
| window.hcaptcha.render(captchaEl, params); | ||
| } | ||
| break; | ||
| } | ||
| case 'm-captcha': { | ||
| const {default: mCaptcha} = await import(/* webpackChunkName: "mcaptcha-vanilla-glue" */'@mcaptcha/vanilla-glue'); | ||
| mCaptcha.INPUT_NAME = 'm-captcha-response'; | ||
| const instanceURL = captchaEl.getAttribute('data-instance-url'); | ||
|
|
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| mCaptcha.default({ | ||
| siteKey: { | ||
| instanceUrl: new URL(instanceURL), | ||
| key: siteKey, | ||
| } | ||
| }); | ||
| break; | ||
| } | ||
| default: | ||
| } | ||
| } |
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