Media Uploader: Restrict unsupported files from being uploaded

[claudiucelfilip]

Fixes DOTOBRD-293

Proposed changes:

• adds the unsupported media types to the media uploader section so that the users don't need to wait for the file to upload to discover it's not supported

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
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Testing instructions:

• Go to '..'
• Create a WoA dev pool site with Personal/Premium
• rsync the changes to the site
• go to /wp-admin/media-new.php
• video (and other unsupported) files should not be selectable in the file browser

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WoA dev site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin (WordPress.com Site Helper), and enable the update/restrict-files-upload-summer-special branch.

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[github-actions]

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Code Coverage Summary

Coverage changed in 1 file.

File	Coverage	Δ%	Δ Uncovered
projects/plugins/wpcomsh/feature-plugins/hooks.php	24/164 (14.63%)	-2.27%	22 💔

Full summary · PHP report

_{Coverage check overridden by Covered by non-unit tests Use to ignore the Code coverage requirement check when E2Es or other non-unit tests cover the code .}

[Copilot]

Pull Request Overview

This PR restricts file selection in the WordPress media uploader to prevent users from selecting unsupported media types (video/audio) based on their site's features, providing immediate feedback without requiring upload attempts.

• Adds client-side file type filtering using Plupload to restrict selectable files based on site features
• Implements feature-based restrictions for audio files (UPLOAD_AUDIO_FILES) and video files (VIDEOPRESS)
• Registers the restrictions only when the media library is enqueued to avoid affecting other upload contexts

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
projects/plugins/wpcomsh/feature-plugins/hooks.php	Implements Plupload file filtering logic and registration
projects/plugins/wpcomsh/changelog/update-restrict-files-upload-summer-special	Adds changelog entry for the feature

Comments suppressed due to low confidence (1)

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[Copilot]

The hardcoded 'mime_types' key assumes a specific Plupload filter structure. Consider checking if this key already exists and merging with existing filters to avoid overwriting user-defined filters.

Suggested change

	array( 'extensions' => implode( ',', $allowed_extensions ) ),
	// Merge with existing mime_types filters if present
	$merged_extensions = $allowed_extensions;
	if ( isset( $options['filters']['mime_types'] ) && is_array( $options['filters']['mime_types'] ) ) {
	foreach ( $options['filters']['mime_types'] as $filter ) {
	if ( isset( $filter['extensions'] ) ) {
	$existing_exts = explode( ',', $filter['extensions'] );
	$merged_extensions = array_merge( $merged_extensions, $existing_exts );
	}
	}
	$merged_extensions = array_values( array_unique( $merged_extensions ) );
	}
	$options['filters']['mime_types'] = array(
	array( 'extensions' => implode( ',', $merged_extensions ) ),