M 2.4.3-p1 - TypeError: htmlspecialchars() expects parameter 1 to be string, null given in vendor/magento/framework/Escaper.php:417

[mrlerch]

Preconditions (*)

1. Magento 2.4.3-p1
2. Debian GNU/Linux 9.13 (stretch)
   PHP 7.4.24, 5.7.34
   MySQL Community Server
   Server version: Apache/2.4.25 (Debian)
   Server built: 2021-10-02T13:27:55

Steps to reproduce (*)

1. Magento Store Frontend: add an item to the cart
2. Log in to a Magento customer account profile
3. Go to Shopping Cart page as logged in customer

Expected result (*)

1. I would see logged in user shopping cart with item in it

Actual result (*)

TypeError: htmlspecialchars() expects parameter 1 to be string, null given in /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/Escaper.php:417
Stack trace:
#0 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/Escaper.php(417): htmlspecialchars()
#1 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/woopra/analytics-m2/Block/Script.php(127): Magento\Framework\Escaper->escapeQuote()
#2 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/woopra/analytics-m2/view/frontend/templates/script.phtml(13): Woopra\Analytics\Block\Script->getSetting()
#3 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/TemplateEngine/Php.php(71): include('/var/www/html/d...')
#4 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/Template.php(273): Magento\Framework\View\TemplateEngine\Php->render()
#5 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/Template.php(303): Magento\Framework\View\Element\Template->fetchView()
#6 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(1114): Magento\Framework\View\Element\Template->_toHtml()
#7 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(1118): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}()
#8 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(678): Magento\Framework\View\Element\AbstractBlock->_loadCache()
#9 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Layout.php(578): Magento\Framework\View\Element\AbstractBlock->toHtml()
#10 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Layout.php(555): Magento\Framework\View\Layout->_renderBlock()
#11 /var/www/html/domains/dev.proproductssales.com/public_html/generated/code/Magento/Framework/View/Layout/Interceptor.php(149): Magento\Framework\View\Layout->renderNonCachedElement()
#12 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Layout.php(510): Magento\Framework\View\Layout\Interceptor->renderNonCachedElement()
#13 /var/www/html/domains/dev.proproductssales.com/public_html/generated/code/Magento/Framework/View/Layout/Interceptor.php(140): Magento\Framework\View\Layout->renderElement()
#14 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(529): Magento\Framework\View\Layout\Interceptor->renderElement()
#15 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/module-theme/view/frontend/templates/html/container.phtml(7): Magento\Framework\View\Element\AbstractBlock->getChildHtml()
#16 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/TemplateEngine/Php.php(71): include('/var/www/html/d...')
#17 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/Template.php(273): Magento\Framework\View\TemplateEngine\Php->render()
#18 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/Template.php(303): Magento\Framework\View\Element\Template->fetchView()
#19 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(1114): Magento\Framework\View\Element\Template->_toHtml()
#20 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(1118): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}()
#21 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(678): Magento\Framework\View\Element\AbstractBlock->_loadCache()
#22 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Result/Page.php(253): Magento\Framework\View\Element\AbstractBlock->toHtml()
#23 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/View/Result/Layout.php(171): Magento\Framework\View\Result\Page->render()
#24 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\Result\Layout->renderResult()
#25 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/Interception/Interceptor.php(138): Magento\Framework\View\Result\Page\Interceptor->___callParent()
#26 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\View\Result\Page\Interceptor->Magento\Framework\Interception\{closure}()
#27 /var/www/html/domains/dev.proproductssales.com/public_html/generated/code/Magento/Framework/View/Result/Page/Interceptor.php(95): Magento\Framework\View\Result\Page\Interceptor->___callPlugins()
#28 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/App/Http.php(120): Magento\Framework\View\Result\Page\Interceptor->renderResult()
#29 /var/www/html/domains/dev.proproductssales.com/public_html/generated/code/Magento/Framework/App/Http/Interceptor.php(23): Magento\Framework\App\Http->launch()
#30 /var/www/html/domains/dev.proproductssales.com/public_html/vendor/magento/framework/App/Bootstrap.php(264): Magento\Framework\App\Http\Interceptor->launch()
#31 /var/www/html/domains/dev.proproductssales.com/public_html/pub/index.php(29): Magento\Framework\App\Bootstrap->run()
#32 {main}

---

Please provide Severity assessment for the Issue as Reporter. This information will help during Confirmation and Issue triage processes.

• [x ] Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

Looked at the function including line 417 in Escaper.php

public function escapeQuote($data, $addSlashes = false)
    {
        if ($addSlashes === true) {
            $data = addslashes($data);
        }

        return htmlspecialchars($data, $this->htmlSpecialCharsFlag, null, false);

    }

Temporary fix:
Created a module that overrides this function with this one:

public function escapeQuote($data, $addSlashes = false)
    {
        if ($addSlashes === true) {
            $data = addslashes($data);
        }
        if (!empty($data)) {
            return htmlspecialchars($data, $this->htmlSpecialCharsFlag, null, false);
        } else { 
            return $data; 
        } 
    }

Now it is working but I think that this is a bug possibly (why would there be an error if data is empty?)

[m2-assistant]

Hi @mrlerch. Thank you for your report.
To speed up processing of this issue, make sure that you provided the following information:

• Summary of the issue
• Information on your environment
• Steps to reproduce
• Expected and actual results

Make sure that the issue is reproducible on the vanilla Magento instance following Steps to reproduce. To deploy vanilla Magento instance on our environment, Add a comment to the issue:

@magento give me 2.4-develop instance - upcoming 2.4.x release

For more details, review the Magento Contributor Assistant documentation.

Add a comment to assign the issue: @magento I am working on this

To learn more about issue processing workflow, refer to the Code Contributions.

---

• Join Magento Community Engineering Slack and ask your questions in #github channel.

⚠️ According to the Magento Contribution requirements, all issues must go through the Community Contributions Triage process. Community Contributions Triage is a public meeting.

🕙 You can find the schedule on the Magento Community Calendar page.

📞 The triage of issues happens in the queue order. If you want to speed up the delivery of your contribution, join the Community Contributions Triage session to discuss the appropriate ticket.

🎥 You can find the recording of the previous Community Contributions Triage on the Magento Youtube Channel

✏️ Feel free to post questions/proposals/feedback related to the Community Contributions Triage process to the corresponding Slack Channel

[hostep]

Thanks for reporting this @mrlerch

For the engcom squad reviewers: note that there is a 3rd party module woopra/analytics-m2 in the stacktrace that probably is the cause of this issue and it might not immediately be reproducible in a vanilla Magento installation.
But that doesn't mean this bug isn't real.

This bug might possibly have been introduced by #32002 where declare(strict_types=1); got added to the Escaper class.
We should be more careful when adding that declaration to existing files and make sure that all calls in that class are forced to use the correct types.

@ihor-sviziev: does that make sense? Maybe collaborate with the other maintainers about this a bit if you can 🙂

The suggested change is not 100% correct as it would still allow addslashes to fail with the same problem when $addSlashes is set to true

[simonmaass]

@hostep this error come from same problem because declare(strict_types=1) was added: #34415... its about a totally different file but just wanted to add to your comment about "We should be more careful when adding that declaration to existing files"

[mrlerch]

Here is my post on github. Now what… #34413 Martin Lerch 702.321.0908 (mobile) ------------------------- Sent from my iPhone (mobile) *************************** The information contained in this communication is potentially confidential, and intended only for the use of the addressee. If you received this communication in error, please notify us by return e-mail and delete this communication and all copies, including all attachments. ****************************

…

On Oct 24, 2021, at 11:22 AM, Simon Maass ***@***.***> wrote:  @hostep this error come from same problem because declare(strict_types=1) was added: #34415 — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.

[ihor-sviziev]

@sidolov, please set priority to P1

[m2-assistant]

Hi @SergeyP18. Thank you for working on this issue.
In order to make sure that issue has enough information and ready for development, please read and check the following instruction: 👇

• 1. Verify that issue has all the required information. (Preconditions, Steps to reproduce, Expected result, Actual result).
     Details

     If the issue has a valid description, the label Issue: Format is valid will be added to the issue automatically. Please, edit issue description if needed, until label Issue: Format is valid appears.
• 2. Verify that issue has a meaningful description and provides enough information to reproduce the issue. If the report is valid, add Issue: Clear Description label to the issue by yourself.
• 3. Add Component: XXXXX label(s) to the ticket, indicating the components it may be related to.
• 4. Verify that the issue is reproducible on 2.4-develop branch
     Details

     - Add the comment @magento give me 2.4-develop instance to deploy test instance on Magento infrastructure.
     - If the issue is reproducible on 2.4-develop branch, please, add the label Reproduced on 2.4.x.
     - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

---

• Join Magento Community Engineering Slack and ask your questions in #github channel.