Feature/secure mode

Api/ConfigInterface.php

@@ -0,0 +1,24 @@
+<?php
+/**
+ * Tawk.to
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://opensource.org/licenses/osl-3.0.php
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to [email protected] so we can send you a copy immediately.
+ *
+ * @copyright   Copyright (c) 2024 Tawk.to
+ * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+namespace Tawk\Widget\Api;
+
+interface ConfigInterface
+{
+    const JS_API_KEY_NO_CHANGE = 'no_change';
+}

Block/Embed.php

@@ -21,12 +21,16 @@
 use Magento\Framework\View\Element\Template;
 use Magento\Framework\Escaper;
 use Magento\Customer\Model\SessionFactory;
+use Magento\Framework\Encryption\EncryptorInterface;
+use Magento\Framework\Exception\LocalizedException;
 
 use Tawk\Modules\UrlPatternMatcher;
 use Tawk\Widget\Model\WidgetFactory;
 
 class Embed extends Template
 {
+    public const TAWKTO_VISITOR_SESSION = 'TAWKTO_VISITOR_SESSION';
+
     /**
      * Tawk.to Widget Model instance
      *
@@ -76,20 +80,29 @@ class Embed extends Template
      */
     protected $escaper;
 
+    /**
+     * Encryptor instance
+     *
+     * @var EncryptorInterface $encryptor
+     */
+    protected $encryptor;
+
     /**
      * Constructor
      *
      * @param SessionFactory $sessionFactory Session Factory instance
      * @param WidgetFactory $modelFactory Tawk.to Widget Model instance
      * @param Template\Context $context Template Context
      * @param Escaper $escaper Escaper instance
+     * @param EncryptorInterface $encryptor Encryptor instance
      * @param array $data Template data
      */
     public function __construct(
         SessionFactory $sessionFactory,
         WidgetFactory $modelFactory,
         Template\Context $context,
         Escaper $escaper,
+        EncryptorInterface $encryptor,
         array $data = []
     ) {
         parent::__construct($context, $data);
@@ -100,6 +113,7 @@ public function __construct(
         $this->request = $context->getRequest();
         $this->modelSessionFactory = $sessionFactory->create();
         $this->escaper = $escaper;
+        $this->encryptor = $encryptor;
     }
 
     /**
@@ -146,7 +160,8 @@ private function getWidgetModel()
      *
      * @return array {
      *   name: string,
-     *   email: string
+     *   email: string,
+     *   hash: string
      * }
      */
     public function getCurrentCustomerDetails()
@@ -160,12 +175,60 @@ public function getCurrentCustomerDetails()
         }
 
         $customerSession = $this->modelSessionFactory->getCustomer();
+
+        $hash = null;
+        try {
+            $hash = $this->getVisitorHash($customerSession->getEmail());
+        } catch (LocalizedException $e) {
+            error_log($e->getMessage());
+        }
+
         return [
             'name'  => $customerSession->getName(),
-            'email' => $customerSession->getEmail()
+            'email' => $customerSession->getEmail(),
+            'hash' => $hash
         ];
     }
 
+    /**
+     * Get visitor hash
+     *
+     * @param string $email Visitor email
+     * @return string
+     */
+    private function getVisitorHash(string $email)
+    {
+        $encryptedJsApiKey = $this->model->getJsApiKey();
+
+        if (empty($encryptedJsApiKey)) {
+            return null;
+        }
+
+        $configVersion = $this->model->getConfigVersion();
+
+        if ($this->modelSessionFactory->hasData(self::TAWKTO_VISITOR_SESSION)) {
+            $currentSession = $this->modelSessionFactory->getData(self::TAWKTO_VISITOR_SESSION);
+
+            if (isset($currentSession['hash']) &&
+                $currentSession['email'] === $email &&
+                $currentSession['config_version'] === $configVersion) {
+                return $currentSession['hash'];
+            }
+        }
+
+        $jsApiKey = $this->encryptor->decrypt($encryptedJsApiKey);
+
+        $hash = hash_hmac('sha256', $email, $jsApiKey);
+
+        $this->modelSessionFactory->setData(self::TAWKTO_VISITOR_SESSION, [
+            'hash' => $hash,
+            'email' => $email,
+            'config_version' => $configVersion,
+        ]);
+
+        return $hash;
+    }
+
     /**
      * To or to not display the selected widget.
      */

Controller/Adminhtml/SaveWidget/Index.php

@@ -20,9 +20,14 @@
 
 use Magento\Framework\Controller\Result\JsonFactory;
 use Magento\Backend\App\Action\Context;
+use Magento\Framework\Encryption\EncryptorInterface;
+use Magento\Framework\Exception\LocalizedException;
+
 use Psr\Log\LoggerInterface;
 use Tawk\Widget\Model\WidgetFactory;
 use Tawk\Widget\Helper\StringUtil;
+use Tawk\Widget\Api\ConfigInterface;
+use Tawk\Widget\Exception\SaveWidgetException;
 
 class Index extends \Magento\Backend\App\Action
 {
@@ -61,6 +66,13 @@ class Index extends \Magento\Backend\App\Action
      */
     protected $helper;
 
+    /**
+     * Encryptor instance
+     *
+     * @var EncryptorInterface $encryptor
+     */
+    protected $encryptor;
+
     /**
      * Constructor
      *
@@ -69,20 +81,23 @@ class Index extends \Magento\Backend\App\Action
      * @param JsonFactory $resultJsonFactory Json Factory instance
      * @param LoggerInterface $logger PSR Logger
      * @param StringUtil $helper String util helper
+     * @param EncryptorInterface $encryptor Encryptor instance
      */
     public function __construct(
         WidgetFactory $modelFactory,
         Context $context,
         JsonFactory $resultJsonFactory,
         LoggerInterface $logger,
-        StringUtil $helper
+        StringUtil $helper,
+        EncryptorInterface $encryptor
     ) {
         parent::__construct($context);
         $this->resultJsonFactory = $resultJsonFactory;
         $this->logger = $logger;
         $this->modelWidgetFactory = $modelFactory->create();
         $this->request = $this->getRequest();
         $this->helper = $helper;
+        $this->encryptor = $encryptor;
     }
 
     /**
@@ -106,13 +121,14 @@ public function execute()
         }
 
         $alwaysdisplay = filter_var($this->request->getParam('alwaysdisplay'), FILTER_SANITIZE_NUMBER_INT);
-        $excludeurl = $this->request->getParam('excludeurl');
+        $excludeurl = $this->helper->stripTagsandQuotes($this->request->getParam('excludeurl'));
         $donotdisplay = filter_var($this->request->getParam('donotdisplay'), FILTER_SANITIZE_NUMBER_INT);
-        $includeurl = $this->request->getParam('includeurl');
+        $includeurl = $this->helper->stripTagsAndQuotes($this->request->getParam('includeurl'));
         $enableVisitorRecognition = filter_var(
             $this->request->getParam('enableVisitorRecognition'),
             FILTER_SANITIZE_NUMBER_INT
         );
+        $jsApiKey = $this->helper->stripTagsandQuotes($this->request->getParam('jsApiKey'));
 
         $model = $this->modelWidgetFactory->loadByForStoreId($storeId);
 
@@ -134,8 +150,46 @@ public function execute()
 
         $model->setEnableVisitorRecognition($enableVisitorRecognition);
 
+        try {
+            $this->setJsApiKey($model, $jsApiKey);
+        } catch (LocalizedException $e) {
+            if ($e instanceof SaveWidgetException) {
+                return $response->setData(['success' => false, 'message' => $e->getMessage()]);
+            }
+
+            return $response->setData(['success' => false, 'message' => 'An error occurred while saving the widget']);
+        }
+
+        $model->setConfigVersion($model->getConfigVersion() + 1);
+
         $model->save();
 
         return $response->setData(['success' => true]);
     }
+
+    /**
+     * Sets the JS API key for the widget.
+     *
+     * @param \Tawk\Widget\Model\Widget $model The widget model
+     * @param string $jsApiKey The JS API key
+     * @return void
+     */
+    private function setJsApiKey($model, $jsApiKey)
+    {
+        if ($jsApiKey === ConfigInterface::JS_API_KEY_NO_CHANGE) {
+            return;
+        }
+
+        if ($jsApiKey === '') {
+            return $model->setJsApiKey(null);
+        }
+
+        $jsApiKey = trim($jsApiKey);
+
+        if (strlen($jsApiKey) !== 40) {
+            throw new SaveWidgetException(__('Invalid API key'));
+        }
+
+        return $model->setJsApiKey($this->encryptor->encrypt($jsApiKey));
+    }
 }

Controller/Adminhtml/StoreWidget/Index.php

@@ -20,9 +20,11 @@
 
 use Magento\Backend\App\Action\Context;
 use Magento\Framework\Controller\Result\JsonFactory;
+
 use Psr\Log\LoggerInterface;
 use Tawk\Widget\Model\WidgetFactory;
 use Tawk\Widget\Helper\StringUtil;
+use Tawk\Widget\Api\ConfigInterface;
 
 class Index extends \Magento\Backend\App\Action
 {
@@ -96,7 +98,8 @@ public function __construct(
      *   excludeurl: string,
      *   donotdisplay: int,
      *   includeurl: string,
-     *   enableVisitorRecognition: int
+     *   enableVisitorRecognition: int,
+     *   jsApiKey: string
      * }
      */
     public function execute()
@@ -126,6 +129,11 @@ public function execute()
 
         $enableVisitorRecognition = $model->getEnableVisitorRecognition();
 
+        $jsApiKey = $model->getJsApiKey();
+        if (!empty($jsApiKey)) {
+            $jsApiKey = ConfigInterface::JS_API_KEY_NO_CHANGE;
+        }
+
         return $response->setData([
             'success' => true,
             'pageid' => $pageId,
@@ -134,7 +142,8 @@ public function execute()
             'excludeurl' => $excludeurl,
             'donotdisplay' => $donotdisplay,
             'includeurl' => $includeurl,
-            'enableVisitorRecognition' => $enableVisitorRecognition
+            'enableVisitorRecognition' => $enableVisitorRecognition,
+            'jsApiKey' => $jsApiKey
         ]);
     }
 }

Exception/SaveWidgetException.php

@@ -0,0 +1,25 @@
+<?php
+/**
+ * Tawk.to
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://opensource.org/licenses/osl-3.0.php
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to [email protected] so we can send you a copy immediately.
+ *
+ * @copyright   Copyright (c) 2024 Tawk.to
+ * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
+ */
+
+namespace Tawk\Widget\Exception;
+
+use Magento\Framework\Exception\LocalizedException;
+
+class SaveWidgetException extends LocalizedException
+{
+}

build/build-package.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+composer run clean
+
+mkdir -p ./tmp/tawkmagento2
+cp -r ./view ./tmp/tawkmagento2
+cp -r ./etc ./tmp/tawkmagento2
+cp -r ./Setup ./tmp/tawkmagento2
+cp -r ./Model ./tmp/tawkmagento2
+cp -r ./Controller ./tmp/tawkmagento2
+cp -r ./Block ./tmp/tawkmagento2
+cp -r ./Helper ./tmp/tawkmagento2
+cp -r ./Api ./tmp/tawkmagento2
+cp -r ./Exception ./tmp/tawkmagento2
+cp ./registration.php ./tmp/tawkmagento2
+cp ./composer.json ./tmp/tawkmagento2
+cp README.md ./tmp/tawkmagento2
+
+(cd ./tmp && zip -9 -rq ./tawkmagento2.zip ./tawkmagento2)

composer.json

@@ -52,7 +52,7 @@
       "build:prod": "composer install --no-dev",
       "lint": "phpcs -p -s -v --runtime-set ignore_warnings_on_exit true .",
       "lint:fix": "phpcbf -p -s -v .; err=$?; if [ $err -eq 1 ]; then exit 0; else exit $err; fi;",
-      "package": "composer run clean && mkdir -p ./tmp/tawkmagento2 && cp -r ./view ./tmp/tawkmagento2 && cp -r ./etc ./tmp/tawkmagento2 && cp -r ./Setup ./tmp/tawkmagento2 && cp -r ./Model ./tmp/tawkmagento2 && cp -r ./Controller ./tmp/tawkmagento2 && cp -r ./Block ./tmp/tawkmagento2 && cp -r ./Helper ./tmp/tawkmagento2 && cp ./registration.php ./tmp/tawkmagento2 && cp ./composer.json ./tmp/tawkmagento2 && cp README.md ./tmp/tawkmagento2 && (cd ./tmp && zip -9 -rq ./tawkmagento2.zip ./tawkmagento2)",
+      "package": "./build/build-package.sh",
       "clean": "rm -rf ./tmp"
   },
   "repositories": {

etc/db_schema.xml

@@ -5,6 +5,7 @@ xsi:noNamespaceSchemaLocation="urn:magento:framework:Setup/Declaration/Schema/et
 		<constraint xsi:type="primary" referenceId="PRIMARY">
 			<column name="id"/>
 		</constraint>
+		<column name="config_version" xsi:type="int" unsigned="true" nullable="false" default="0" comment="Config version"/>
 		<column name="for_store_id" xsi:type="int" unsigned="true" nullable="false" comment="Store View ID"/>
 		<column name="page_id" xsi:type="varchar" length="255" nullable="true" comment="Tawk.to Page ID"/>
 		<column name="widget_id" xsi:type="varchar" length="255" nullable="true" comment="Tawk.to Widget ID"/>
@@ -18,5 +19,6 @@ xsi:noNamespaceSchemaLocation="urn:magento:framework:Setup/Declaration/Schema/et
 			comment="Comma-separated list of url patterns where widget should be displayed"/>
 		<column name="enable_visitor_recognition" xsi:type="smallint" unsigned="true" nullable="false" default="1"
 			comment="Enable visitor recognition feature"/>
+		<column name="js_api_key" xsi:type="text" nullable="true" comment="JS API key"/>
 	</table>
 </schema>