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-rw-r--r--extensions/ConfirmEdit/ReCaptcha.class.php89
1 files changed, 89 insertions, 0 deletions
diff --git a/extensions/ConfirmEdit/ReCaptcha.class.php b/extensions/ConfirmEdit/ReCaptcha.class.php
new file mode 100644
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+++ b/extensions/ConfirmEdit/ReCaptcha.class.php
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+<?php
+
+class ReCaptcha extends SimpleCaptcha {
+ // reCAPTHCA error code returned from recaptcha_check_answer
+ private $recaptcha_error = null;
+
+ /**
+ * Displays the reCAPTCHA widget.
+ * If $this->recaptcha_error is set, it will display an error in the widget.
+ *
+ */
+ function getForm() {
+ global $wgReCaptchaPublicKey, $wgReCaptchaTheme;
+
+ $useHttps = ( isset( $_SERVER['HTTPS'] ) && $_SERVER['HTTPS'] == 'on' );
+ $js = 'var RecaptchaOptions = ' . Xml::encodeJsVar( array( 'theme' => $wgReCaptchaTheme, 'tabindex' => 1 ) );
+
+ return Html::inlineScript( $js ) . recaptcha_get_html( $wgReCaptchaPublicKey, $this->recaptcha_error, $useHttps );
+ }
+
+ /**
+ * Calls the library function recaptcha_check_answer to verify the users input.
+ * Sets $this->recaptcha_error if the user is incorrect.
+ * @return boolean
+ *
+ */
+ function passCaptcha() {
+ global $wgReCaptchaPrivateKey, $wgRequest;
+
+ // API is hardwired to return wpCaptchaId and wpCaptchaWord, so use that if the standard two are empty
+ $challenge = $wgRequest->getVal( 'recaptcha_challenge_field', $wgRequest->getVal( 'wpCaptchaId' ) );
+ $response = $wgRequest->getVal( 'recaptcha_response_field', $wgRequest->getVal( 'wpCaptchaWord' ) );
+
+ if ( $response === null ) {
+ // new captcha session
+ return false;
+ }
+
+ $recaptcha_response = recaptcha_check_answer(
+ $wgReCaptchaPrivateKey,
+ $wgRequest->getIP(),
+ $challenge,
+ $response
+ );
+
+ if ( !$recaptcha_response->is_valid ) {
+ $this->recaptcha_error = $recaptcha_response->error;
+ return false;
+ }
+
+ $recaptcha_error = null;
+
+ return true;
+
+ }
+
+ function addCaptchaAPI( &$resultArr ) {
+ global $wgReCaptchaPublicKey;
+
+ $resultArr['captcha']['type'] = 'recaptcha';
+ $resultArr['captcha']['mime'] = 'image/png';
+ $resultArr['captcha']['key'] = $wgReCaptchaPublicKey;
+ $resultArr['captcha']['error'] = $this->recaptcha_error;
+ }
+
+ /**
+ * Show a message asking the user to enter a captcha on edit
+ * The result will be treated as wiki text
+ *
+ * @param $action Action being performed
+ * @return string
+ */
+ function getMessage( $action ) {
+ $name = 'recaptcha-' . $action;
+ $text = wfMsg( $name );
+
+ # Obtain a more tailored message, if possible, otherwise, fall back to
+ # the default for edits
+ return wfEmptyMsg( $name, $text ) ? wfMsg( 'recaptcha-edit' ) : $text;
+ }
+
+ public function APIGetAllowedParams( &$module, &$params ) {
+ return true;
+ }
+
+ public function APIGetParamDescription( &$module, &$desc ) {
+ return true;
+ }
+}