2.4.7 breaks uploads of additional file type to CMS media gallery

[adamlavery]

Preconditions and environment

M2.4.7

Steps to reproduce

Implement DI overrides to allow more than just jpeg, jpg, png, gif files to be uploaded to the CMS media gallery e.g. add PDF

Expected result

PDF files can be uploaded and used in CMS content.

Actual result

PDF files are now disallowed again in 2.4.7

Additional information

Why are they now disallowed? Simple - some developer decided to "fix" a check for allowed files types in the media-uploader.js script. Instead of supplying allowed types to the script, as specified in DI, s/he hardcoded the allowed extensions in the script.

        _create: function () {
            let self = this,
                arrayFromObj = Array.from,
                progressTmpl = mageTemplate('[data-template="uploader"]'),
                uploaderElement = '#fileUploader',
                targetElement = this.element.find('.fileinput-button.form-buttons')[0],
                uploadUrl = $(uploaderElement).attr('data-url'),
                fileId = null,
                allowedExt = ['jpeg', 'jpg', 'png', 'gif'],
                allowedResize = false,
                options = {

In fact someone thought of doing this in earlier versions but never followed it through - acceptFileTypes is never used:

                dropZone: '[data-tab-panel=image-management]',
                sequentialUploads: true,
                acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
                maxFileSize: this.options.maxFileSize,

Come on, how does this kind of schoolboy error make it into production? We learnt in the '80s that you never duplicate code/constants. If you do then your code is wrong and needs to be restructured to remove duplication.

Now, in addition to adding multiple DI entries to allow more file types in CMS content (which is also very poor code design), we have to override Magento_Backend/js/media-uploader.js to allow them, and manage core changes going forward.

Magento developers - you must do better! The time and cost of your errors is considerable.

Release note

Fix error introduced in 2,4.7 that negates DI changes to allow additional file types in CMS pages/blocks.

Triage and priority

• 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”.

[m2-assistant]

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[hostep]

There once was (back in 2017) a suggestion to be able to upload pdf files through a separate "file upload" mechanism that wouldn't abuse the "media gallery upload" (because pdf files aren't images that need to be resized to show a thumbnail): #9850

Maybe that idea should get picked up again?

[m2-assistant]

Hi @engcom-Hotel. Thank you for working on this issue.
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[engcom-Hotel]

Hello @adamlavery,

Thanks for the report and collaboration!

We have tried to reproduce this issue in the latest development branch i.e. 2.4-develop and the issue seems reproducible for us. Currently, there is no way to upload files other than the ones mentioned in the existing module, need to override Magento_Backend/js/media-uploader.js to allow it.

Hence confirming the issue.

Thanks