Update to MediaWiki 1.25.1

1 files changed, 274 insertions, 0 deletions

diff --git a/extensions/ConfirmEdit/ReCaptcha/recaptchalib.php b/extensions/ConfirmEdit/ReCaptcha/recaptchalib.php
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+++ b/extensions/ConfirmEdit/ReCaptcha/recaptchalib.php
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+<?php
+/**
+ * This is a PHP library that handles calling reCAPTCHA.
+ *    - Documentation and latest version
+ *          http://recaptcha.net/plugins/php/
+ *    - Get a reCAPTCHA API Key
+ *          https://www.google.com/recaptcha/admin/create
+ *    - Discussion group
+ *          http://groups.google.com/group/recaptcha
+ *
+ * Copyright (c) 2007 reCAPTCHA -- http://recaptcha.net
+ * AUTHORS:
+ *   Mike Crawford
+ *   Ben Maurer
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * The reCAPTCHA server URL's
+ */
+define( "RECAPTCHA_API_SERVER", "http://www.google.com/recaptcha/api" );
+define( "RECAPTCHA_API_SECURE_SERVER", "https://www.google.com/recaptcha/api" );
+define( "RECAPTCHA_VERIFY_SERVER", "www.google.com" );
+
+/**
+ * Encodes the given data into a query string format
+ * @param $data - array of string elements to be encoded
+ * @return string - encoded request
+ */
+function _recaptcha_qsencode ( $data ) {
+        $req = "";
+        foreach ( $data as $key => $value )
+                $req .= $key . '=' . urlencode( stripslashes( $value ) ) . '&';
+
+        // Cut the last '&'
+        $req = substr( $req, 0, strlen( $req ) -1 );
+        return $req;
+}
+
+
+
+/**
+ * Submits an HTTP POST to a reCAPTCHA server
+ * @param string $host
+ * @param string $path
+ * @param array $data
+ * @param int port
+ * @return array response
+ */
+function _recaptcha_http_post( $host, $path, $data, $port = 80 ) {
+
+        $req = _recaptcha_qsencode ( $data );
+
+        $http_request  = "POST $path HTTP/1.0\r\n";
+        $http_request .= "Host: $host\r\n";
+        $http_request .= "Content-Type: application/x-www-form-urlencoded;\r\n";
+        $http_request .= "Content-Length: " . strlen( $req ) . "\r\n";
+        $http_request .= "User-Agent: reCAPTCHA/PHP\r\n";
+        $http_request .= "\r\n";
+        $http_request .= $req;
+
+        $response = '';
+        if ( false == ( $fs = @fsockopen( $host, $port, $errno, $errstr, 10 ) ) ) {
+                die ( 'Could not open socket' );
+        }
+
+        fwrite( $fs, $http_request );
+
+        while ( !feof( $fs ) )
+                $response .= fgets( $fs, 1160 ); // One TCP-IP packet
+        fclose( $fs );
+        $response = explode( "\r\n\r\n", $response, 2 );
+
+        return $response;
+}
+
+
+
+/**
+ * Gets the challenge HTML (javascript and non-javascript version).
+ * This is called from the browser, and the resulting reCAPTCHA HTML widget
+ * is embedded within the HTML form it was called from.
+ * @param string $pubkey A public key for reCAPTCHA
+ * @param string $error The error given by reCAPTCHA (optional, default is null)
+ * @param boolean $use_ssl Should the request be made over ssl? (optional, default is false)
+
+ * @return string - The HTML to be embedded in the user's form.
+ */
+function recaptcha_get_html ( $pubkey, $error = null, $use_ssl = false )
+{
+	if ( $pubkey == null || $pubkey == '' ) {
+		die ( "To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>" );
+	}
+
+	if ( $use_ssl ) {
+                $server = RECAPTCHA_API_SECURE_SERVER;
+        } else {
+                $server = RECAPTCHA_API_SERVER;
+        }
+
+        $errorpart = "";
+        if ( $error ) {
+           $errorpart = "&amp;error=" . $error;
+        }
+        return '<script type="text/javascript" src="' . $server . '/challenge?k=' . $pubkey . $errorpart . '"></script>
+
+	<noscript>
+  		<iframe src="' . $server . '/noscript?k=' . $pubkey . $errorpart . '" height="300" width="500" frameborder="0"></iframe><br/>
+  		<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
+  		<input type="hidden" name="recaptcha_response_field" value="manual_challenge"/>
+	</noscript>';
+}
+
+
+
+
+/**
+ * A ReCaptchaResponse is returned from recaptcha_check_answer()
+ */
+class ReCaptchaResponse {
+        public $is_valid;
+        public $error;
+}
+
+
+/**
+  * Calls an HTTP POST function to verify if the user's guess was correct
+  * @param string $privkey
+  * @param string $remoteip
+  * @param string $challenge
+  * @param string $response
+  * @param array $extra_params an array of extra variables to post to the server
+  * @return ReCaptchaResponse
+  */
+function recaptcha_check_answer ( $privkey, $remoteip, $challenge, $response, $extra_params = array() )
+{
+	if ( $privkey == null || $privkey == '' ) {
+		die ( "To use reCAPTCHA you must get an API key from <a href='https://www.google.com/recaptcha/admin/create'>https://www.google.com/recaptcha/admin/create</a>" );
+	}
+
+	if ( $remoteip == null || $remoteip == '' ) {
+		die ( "For security reasons, you must pass the remote ip to reCAPTCHA" );
+	}
+
+
+
+        // discard spam submissions
+        if ( $challenge == null || strlen( $challenge ) == 0 || $response == null || strlen( $response ) == 0 ) {
+                $recaptcha_response = new ReCaptchaResponse();
+                $recaptcha_response->is_valid = false;
+                $recaptcha_response->error = 'incorrect-captcha-sol';
+                return $recaptcha_response;
+        }
+
+        $response = _recaptcha_http_post ( RECAPTCHA_VERIFY_SERVER, "/recaptcha/api/verify",
+                                          array (
+                                                 'privatekey' => $privkey,
+                                                 'remoteip' => $remoteip,
+                                                 'challenge' => $challenge,
+                                                 'response' => $response
+                                                 ) + $extra_params
+                                          );
+
+        $answers = explode ( "\n", $response [1] );
+        $recaptcha_response = new ReCaptchaResponse();
+
+        if ( trim ( $answers [0] ) == 'true' ) {
+                $recaptcha_response->is_valid = true;
+        }
+        else {
+                $recaptcha_response->is_valid = false;
+                $recaptcha_response->error = $answers [1];
+        }
+        return $recaptcha_response;
+
+}
+
+/**
+ * gets a URL where the user can sign up for reCAPTCHA. If your application
+ * has a configuration page where you enter a key, you should provide a link
+ * using this function.
+ * @param string $domain The domain where the page is hosted
+ * @param string $appname The name of your application
+ */
+function recaptcha_get_signup_url ( $domain = null, $appname = null ) {
+	return "https://www.google.com/recaptcha/admin/create?" .  _recaptcha_qsencode ( array ( 'domains' => $domain, 'app' => $appname ) );
+}
+
+function _recaptcha_aes_pad( $val ) {
+	$block_size = 16;
+	$numpad = $block_size - ( strlen ( $val ) % $block_size );
+	return str_pad( $val, strlen ( $val ) + $numpad, chr( $numpad ) );
+}
+
+/* Mailhide related code */
+
+function _recaptcha_aes_encrypt( $val, $ky ) {
+	if ( ! function_exists ( "mcrypt_encrypt" ) ) {
+		die ( "To use reCAPTCHA Mailhide, you need to have the mcrypt php module installed." );
+	}
+	$mode = MCRYPT_MODE_CBC;
+	$enc = MCRYPT_RIJNDAEL_128;
+	$val = _recaptcha_aes_pad( $val );
+	return mcrypt_encrypt( $enc, $ky, $val, $mode, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" );
+}
+
+
+function _recaptcha_mailhide_urlbase64 ( $x ) {
+	return strtr( base64_encode ( $x ), '+/', '-_' );
+}
+
+/* gets the reCAPTCHA Mailhide url for a given email, public key and private key */
+function recaptcha_mailhide_url( $pubkey, $privkey, $email ) {
+	if ( $pubkey == '' || $pubkey == null || $privkey == "" || $privkey == null ) {
+		die ( "To use reCAPTCHA Mailhide, you have to sign up for a public and private key, " .
+		     "you can do so at <a href='http://www.google.com/recaptcha/mailhide/apikey'>http://www.google.com/recaptcha/mailhide/apikey</a>" );
+	}
+
+
+	$ky = pack( 'H*', $privkey );
+	$cryptmail = _recaptcha_aes_encrypt ( $email, $ky );
+
+	return "http://www.google.com/recaptcha/mailhide/d?k=" . $pubkey . "&c=" . _recaptcha_mailhide_urlbase64 ( $cryptmail );
+}
+
+/**
+ * gets the parts of the email to expose to the user.
+ * eg, given johndoe@example,com return ["john", "example.com"].
+ * the email is then displayed as john...@example.com
+ */
+function _recaptcha_mailhide_email_parts ( $email ) {
+	$arr = preg_split( "/@/", $email );
+
+	if ( strlen ( $arr[0] ) <= 4 ) {
+		$arr[0] = substr ( $arr[0], 0, 1 );
+	} elseif ( strlen ( $arr[0] ) <= 6 ) {
+		$arr[0] = substr ( $arr[0], 0, 3 );
+	} else {
+		$arr[0] = substr ( $arr[0], 0, 4 );
+	}
+	return $arr;
+}
+
+/**
+ * Gets html to display an email address given a public an private key.
+ * to get a key, go to:
+ *
+ * http://www.google.com/recaptcha/mailhide/apikey
+ */
+function recaptcha_mailhide_html( $pubkey, $privkey, $email ) {
+	$emailparts = _recaptcha_mailhide_email_parts ( $email );
+	$url = recaptcha_mailhide_url ( $pubkey, $privkey, $email );
+
+	return htmlentities( $emailparts[0] ) . "<a href='" . htmlentities ( $url ) .
+		"' onclick=\"window.open('" . htmlentities ( $url ) . "', '', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=500,height=300'); return false;\" title=\"Reveal this e-mail address\">...</a>@" . htmlentities ( $emailparts [1] );
+
+}