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Commit 5041ffdb authored by Ruben Estrada's avatar Ruben Estrada
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#954 updates recaptcha

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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 {
var $is_valid;
var $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);
} else if (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]);
}
?>
......@@ -118,15 +118,13 @@
{/foreach}
</table>
{if $IS_CAPTCHA_ENABLED}
<div id="captchaField"></div>
<input type="hidden" id="captchaUrl" value="{$CAPTCHA_PATH}">
<input type="hidden" id="recaptcha_validation_value" >
<script src="https://www.google.com/recaptcha/api.js" async defer></script>
<div class="g-recaptcha" data-sitekey="{$CAPTCHA_CONFIG['VTIGER_RECAPTCHA_PUBLIC_KEY']}" data-callback="enableSubmitBtn"></div>
{/if}
<input type="submit" value="Submit" ></input>
</form>
</pre>
</code>
<input type="hidden" name="isCaptchaEnabled" value="{$IS_CAPTCHA_ENABLED}">
</div>
<div class="modal-footer">
<center>
......
......@@ -10,17 +10,18 @@
// Switch the working directory to base
chdir(dirname(__FILE__) . '/../..');
include_once 'includes/Loader.php';
include_once 'include/Zend/Json.php';
include_once 'vtlib/Vtiger/Module.php';
include_once 'include/utils/VtlibUtils.php';
include_once 'include/Webservices/Create.php';
include_once 'modules/Webforms/model/WebformsModel.php';
include_once 'modules/Webforms/model/WebformsFieldModel.php';
include_once 'include/QueryGenerator/QueryGenerator.php';
include_once 'includes/runtime/EntryPoint.php';
include_once 'includes/main/WebUI.php';
include_once 'include/Webservices/AddRelated.php';
require_once 'includes/Loader.php';
require_once 'include/Zend/Json.php';
require_once 'vtlib/Vtiger/Module.php';
require_once 'include/utils/VtlibUtils.php';
require_once 'include/Webservices/Create.php';
require_once 'modules/Webforms/model/WebformsModel.php';
require_once 'modules/Webforms/model/WebformsFieldModel.php';
require_once 'include/QueryGenerator/QueryGenerator.php';
require_once 'includes/runtime/EntryPoint.php';
require_once 'includes/main/WebUI.php';
require_once 'include/Webservices/AddRelated.php';
require_once 'modules/Webforms/config.captcha.php';
class Webform_Capture {
......@@ -36,9 +37,15 @@ class Webform_Capture {
throw new Exception('webforms is not active');
$webform = Webforms_Model::retrieveWithPublicId(vtlib_purify($request['publicid']));
if (empty($webform))
if (empty($webform)) {
throw new Exception("Webform not found.");
}
$webformSettingsRecord = Settings_Webforms_Record_Model::getInstanceById($webform->getId(), 'Settings:Webforms');
if ($webformSettingsRecord->isCaptchaEnabled()) {
$this->validateRecaptcha($request['g-recaptcha-response']);
}
$returnURL = $webform->getReturnUrl();
$roundrobin = $webform->getRoundrobin();
......@@ -156,6 +163,40 @@ class Webform_Capture {
}
}
private function validateRecaptcha($recaptchaResponse)
{
$recaptchaValidation = $this->postCaptcha($recaptchaResponse);
if (!$recaptchaValidation['success']) {
throw new Exception("Please verify you are not a robot.");
}
}
private function postCaptcha($recaptchaResponse) {
global $captchaConfig;
$fields_string = '';
$fields = array(
'secret' => $captchaConfig['VTIGER_RECAPTCHA_PRIVATE_KEY'],
'response' => $recaptchaResponse
);
foreach($fields as $key=>$value) {
$fields_string .= $key . '=' . $value . '&';
}
$fields_string = rtrim($fields_string, '&');
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://www.google.com/recaptcha/api/siteverify');
curl_setopt($ch, CURLOPT_POST, count($fields));
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, True);
$result = curl_exec($ch);
curl_close($ch);
return json_decode($result, true);
}
}
// NOTE: Take care of stripping slashes...
......@@ -179,4 +220,3 @@ if ($isURLEncodeEnabled == 1) {
} else {
$webformCapture->captureNow($request);
}
?>
\ No newline at end of file
......@@ -13,7 +13,8 @@
*/
global $captchaConfig;
$captchaConfig=array(
'VTIGER_RECAPTCHA_PUBLIC_KEY'=>'RECAPTCHA PUBLIC KEY FOR THIS DOMAIN',//RECAPTCHA PUBLIC KEY FOR THIS DOMAIN
'VTIGER_RECAPTCHA_PRIVATE_KEY'=>'RECAPTCHA PRIVATE KEY FOR THIS DOMAIN');//RECAPTCHA PRIVATE KEY FOR THIS DOMAIN
'VTIGER_RECAPTCHA_PUBLIC_KEY'=>'RECAPTCHA PUBLIC KEY FOR THIS DOMAIN',//RECAPTCHA PUBLIC KEY FOR THIS DOMAIN
'VTIGER_RECAPTCHA_PRIVATE_KEY'=>'RECAPTCHA PRIVATE KEY FOR THIS DOMAIN'//RECAPTCHA PRIVATE KEY FOR THIS DOMAIN
);
<?php
/*+**********************************************************************************
* The contents of this file are subject to the vtiger CRM Public License Version 1.1
* ("License"); You may not use this file except in compliance with the License
* The Original Code is: vtiger CRM Open Source
* The Initial Developer of the Original Code is vtiger.
* Portions created by vtiger are Copyright (C) vtiger.
* All Rights Reserved.
************************************************************************************/
// Switch the working directory to base
chdir(dirname(__FILE__) . '/../../../..');
include_once 'includes/http/Response.php';
include_once 'vtlib/Vtiger/Module.php';
include_once 'include/utils/VtlibUtils.php';
include_once 'include/recaptcha/recaptchalib.php';
class Webform_CheckCaptcha {
function checkCaptchaNow($request) {
// reCAPTCHA public and private keys to validate
$publickey = "6Lchg-wSAAAAAIkV51_LSksz6fFdD2vgy59jwa38";
$privatekey = "6Lchg-wSAAAAABUvZ57ogylowuv8SK0Hq4h2Yghs";
// to store the response from reCAPTCHA
$resp = null;
if ($request["recaptcha_response_field"]) {
$resp = recaptcha_check_answer ($privatekey,
$_SERVER["REMOTE_ADDR"],
$request["recaptcha_challenge_field"],
$request["recaptcha_response_field"]);
if ($resp->is_valid) {
$this->sendResponse(true, $request['callId']);
} else {
$this->sendResponse(false, $request['callId']);
}
} else {
$this->sendResponse(false, $request['callId']);
}
}
protected function sendResponse($success, $callId) {
$response = new Vtiger_Response();
if ($success)
$response->setResult(array('success' => true, 'callId' => $callId));
else
$response->setResult(array('success' => false, 'callId' => $callId));
// Support JSONP
if (!empty($_REQUEST['callback'])) {
$callback = vtlib_purify($_REQUEST['callback']);
$response->setEmitType('4');
$response->setEmitJSONP($callback);
$response->emit();
} else {
$response->emit();
}
}
}
$webformCheckCaptcha = new Webform_CheckCaptcha;
$webformCheckCaptcha->checkCaptchaNow(vtlib_purify($_REQUEST));
?>
\ No newline at end of file
......@@ -8,6 +8,8 @@
* All Rights Reserved.
*************************************************************************************/
require_once 'modules/Webforms/config.captcha.php';
Class Settings_Webforms_ShowForm_View extends Settings_Vtiger_IndexAjax_View {
public function checkPermission(Vtiger_Request $request) {
......@@ -20,10 +22,11 @@ Class Settings_Webforms_ShowForm_View extends Settings_Vtiger_IndexAjax_View {
if(!$recordId || !$currentUserPrivilegesModel->hasModulePermission($moduleModel->getId())) {
throw new AppException(vtranslate('LBL_PERMISSION_DENIED'));
}
return true;
return true;
}
public function process(Vtiger_Request $request) {
global $captchaConfig;
$recordId = $request->get('record');
$qualifiedModuleName = $request->getModule(false);
$moduleName = $request->getModule();
......@@ -44,6 +47,7 @@ Class Settings_Webforms_ShowForm_View extends Settings_Vtiger_IndexAjax_View {
$viewer->assign('USER_MODEL', Users_Record_Model::getCurrentUserModel());
$viewer->assign('DOCUMENT_FILE_FIELDS', $recordModel->getFileFields());
$viewer->assign('ALLOWED_ALL_FILES_SIZE', $recordModel->getModule()->allowedAllFilesSize());
$viewer->assign('CAPTCHA_CONFIG', $captchaConfig);
echo $viewer->view('ShowForm.tpl', $qualifiedModuleName);
}
......
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