<?php
/**
* Allow SVG uploads for administrator users.
*
* This function modifies the list of allowed mime types for file uploads in WordPress.
* Specifically, it enables SVG and SVGZ file uploads for users with the 'administrator' role.
* This can enhance flexibility for site customization while maintaining security.
*
* Gist Keywords: wordpress, file upload, svg, functions, mime, security
*
* @param array $upload_mimes The existing array of allowed mime types.
* @return array The modified array of mime types.
* @author Knol Aust
*/
add_filter(
'upload_mimes',
function ( $upload_mimes ) {
if ( ! current_user_can( 'administrator' ) ) {
return $upload_mimes;
}
$upload_mimes['svg'] = 'image/svg+xml';
$upload_mimes['svgz'] = 'image/svg+xml';
return $upload_mimes;
}
);
/**
* Add SVG files mime check.
*
* This function ensures proper handling of SVG file uploads by checking and validating the file type.
* It's particularly useful for security, ensuring that only legitimate SVG files are processed and uploaded.
*
* Categories: #wordpress, #file-upload, #svg, #validation, #security
*
* @param array $wp_check_filetype_and_ext File type and extension data.
* @param string $file Full path to the file.
* @param string $filename The name of the file.
* @param string[] $mimes Array of mime types keyed by their file extension regex.
* @param string|false $real_mime The actual mime type or false if the type cannot be determined.
* @return array Modified file type and extension data.
* @author Knol Aust
*/
add_filter(
'wp_check_filetype_and_ext',
function ( $wp_check_filetype_and_ext, $file, $filename, $mimes, $real_mime ) {
if ( ! $wp_check_filetype_and_ext['type'] ) {
$check_filetype = wp_check_filetype( $filename, $mimes );
$ext = $check_filetype['ext'];
$type = $check_filetype['type'];
$proper_filename = $filename;
if ( $type && 0 === strpos( $type, 'image/' ) && 'svg' !== $ext ) {
$ext = false;
$type = false;
}
$wp_check_filetype_and_ext = compact( 'ext', 'type', 'proper_filename' );
}
return $wp_check_filetype_and_ext;
},
10,
5
);
?>