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hCaptcha Support (#12594)
* Initial work on hCaptcha Signed-off-by: jolheiser <john.olheiser@gmail.com> * Use module Signed-off-by: jolheiser <john.olheiser@gmail.com> * Format Signed-off-by: jolheiser <john.olheiser@gmail.com> * At least return and debug log a captcha error Signed-off-by: jolheiser <john.olheiser@gmail.com> * Pass context to hCaptcha Signed-off-by: jolheiser <john.olheiser@gmail.com> * Add context to recaptcha Signed-off-by: jolheiser <john.olheiser@gmail.com> * fix lint Signed-off-by: Andrew Thornton <art27@cantab.net> * Finish hcaptcha Signed-off-by: jolheiser <john.olheiser@gmail.com> * Update example config Signed-off-by: jolheiser <john.olheiser@gmail.com> * Apply error fix for recaptcha Signed-off-by: jolheiser <john.olheiser@gmail.com> * Change recaptcha ChallengeTS to string Signed-off-by: jolheiser <john.olheiser@gmail.com> Co-authored-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
105
vendor/go.jolheiser.com/hcaptcha/hcaptcha.go
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105
vendor/go.jolheiser.com/hcaptcha/hcaptcha.go
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package hcaptcha
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import (
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"context"
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"encoding/json"
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"io/ioutil"
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"net/http"
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"net/url"
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"strings"
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)
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const verifyURL = "https://hcaptcha.com/siteverify"
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// Client is an hCaptcha client
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type Client struct {
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ctx context.Context
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http *http.Client
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secret string
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}
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// PostOptions are optional post form values
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type PostOptions struct {
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RemoteIP string
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Sitekey string
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}
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// ClientOption is a func to modify a new Client
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type ClientOption func(*Client)
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// WithHTTP sets the http.Client of a Client
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func WithHTTP(httpClient *http.Client) func(*Client) {
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return func(hClient *Client) {
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hClient.http = httpClient
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}
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}
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// WithContext sets the context.Context of a Client
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func WithContext(ctx context.Context) func(*Client) {
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return func(hClient *Client) {
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hClient.ctx = ctx
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}
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}
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// New returns a new hCaptcha Client
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func New(secret string, options ...ClientOption) (*Client, error) {
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if strings.TrimSpace(secret) == "" {
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return nil, ErrMissingInputSecret
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}
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client := &Client{
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ctx: context.Background(),
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http: http.DefaultClient,
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secret: secret,
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}
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for _, opt := range options {
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opt(client)
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}
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return client, nil
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}
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// Verify checks the response against the hCaptcha API
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func (c *Client) Verify(token string, opts PostOptions) (*Response, error) {
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if strings.TrimSpace(token) == "" {
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return nil, ErrMissingInputResponse
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}
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post := url.Values{
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"secret": []string{c.secret},
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"response": []string{token},
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}
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if strings.TrimSpace(opts.RemoteIP) != "" {
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post.Add("remoteip", opts.RemoteIP)
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}
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if strings.TrimSpace(opts.Sitekey) != "" {
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post.Add("sitekey", opts.Sitekey)
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}
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// Basically a copy of http.PostForm, but with a context
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req, err := http.NewRequestWithContext(c.ctx, http.MethodPost, verifyURL, strings.NewReader(post.Encode()))
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if err != nil {
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return nil, err
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}
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req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
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resp, err := c.http.Do(req)
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if err != nil {
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return nil, err
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}
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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var response *Response
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if err := json.Unmarshal(body, &response); err != nil {
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return nil, err
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}
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return response, nil
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}
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