329 lines
8.1 KiB
PHP
329 lines
8.1 KiB
PHP
<?php
|
|
/**
|
|
* Display SVG in attachment modal
|
|
*/
|
|
if ( ! defined( 'ABSPATH' ) ) {
|
|
exit; // Exit if accessed directly
|
|
}
|
|
|
|
function bodhi_svgs_response_for_svg( $response, $attachment, $meta ) {
|
|
|
|
if ( $response['mime'] == 'image/svg+xml' && empty( $response['sizes'] ) ) {
|
|
|
|
$svg_path = get_attached_file( $attachment->ID );
|
|
|
|
if ( ! file_exists( $svg_path ) ) {
|
|
// If SVG is external, use the URL instead of the path
|
|
$svg_path = $response['url'];
|
|
}
|
|
|
|
$dimensions = bodhi_svgs_get_dimensions( $svg_path );
|
|
|
|
$response['sizes'] = array(
|
|
'full' => array(
|
|
'url' => $response['url'],
|
|
'width' => $dimensions->width,
|
|
'height' => $dimensions->height,
|
|
'orientation' => $dimensions->width > $dimensions->height ? 'landscape' : 'portrait'
|
|
)
|
|
);
|
|
|
|
}
|
|
|
|
return $response;
|
|
|
|
}
|
|
add_filter( 'wp_prepare_attachment_for_js', 'bodhi_svgs_response_for_svg', 10, 3 );
|
|
|
|
function bodhi_svgs_get_dimensions( $svg ) {
|
|
|
|
$svg = simplexml_load_file( $svg );
|
|
|
|
if ( $svg === FALSE ) {
|
|
|
|
$width = '0';
|
|
$height = '0';
|
|
|
|
} else {
|
|
|
|
$attributes = $svg->attributes();
|
|
$width = (string) $attributes->width;
|
|
$height = (string) $attributes->height;
|
|
|
|
}
|
|
|
|
return (object) array( 'width' => $width, 'height' => $height );
|
|
|
|
}
|
|
|
|
/**
|
|
* Generate attachment metadata (Thanks @surml)
|
|
* Fixes Illegal String Offset Warning for Height & Width
|
|
*/
|
|
function bodhi_svgs_generate_svg_attachment_metadata( $metadata, $attachment_id ) {
|
|
|
|
$mime = get_post_mime_type( $attachment_id );
|
|
|
|
if ( $mime == 'image/svg+xml' ) {
|
|
|
|
$svg_path = get_attached_file( $attachment_id );
|
|
$upload_dir = wp_upload_dir();
|
|
// get the path relative to /uploads/ - found no better way:
|
|
$relative_path = str_replace($upload_dir['basedir'], '', $svg_path);
|
|
$filename = basename( $svg_path );
|
|
|
|
$dimensions = bodhi_svgs_get_dimensions( $svg_path );
|
|
|
|
$metadata = array(
|
|
'width' => intval($dimensions->width),
|
|
'height' => intval($dimensions->height),
|
|
'file' => $filename
|
|
);
|
|
|
|
$height = intval($dimensions->height);
|
|
$width = intval($dimensions->width);
|
|
|
|
// Might come in handy to create the sizes array too - But it's not needed for this workaround! Always links to original svg-file => Hey, it's a vector graphic! ;)
|
|
$sizes = array();
|
|
foreach ( get_intermediate_image_sizes() as $s ) {
|
|
|
|
$sizes[$s] = array( 'width' => '', 'height' => '', 'crop' => false );
|
|
|
|
// for svg with width and height set, we need to adjust the thumbnails accordingly
|
|
if ( $width !== 0 && $height !== 0 ) {
|
|
|
|
// follow width of request size e.g. 150, 300 etc..
|
|
if ( isset( $_wp_additional_image_sizes[$s]['width'] ) ) {
|
|
$width_current_size = intval( $_wp_additional_image_sizes[$s]['width'] );
|
|
} else {
|
|
$width_current_size = get_option( "{$s}_size_w" );
|
|
}
|
|
|
|
// we have dimensions available. Use them
|
|
if ( $width > $height ) {
|
|
$ratio = round($width / $height,2);
|
|
$new_height = round($width_current_size / $ratio);
|
|
} else {
|
|
$ratio = round($height / $width,2);
|
|
$new_height = round($width_current_size * $ratio);
|
|
}
|
|
|
|
$sizes[$s]['width'] = $width_current_size;
|
|
$sizes[$s]['height'] = $new_height;
|
|
|
|
// svgs can't be cropped by WP
|
|
$sizes[$s]['crop'] = false;
|
|
|
|
} else {
|
|
|
|
// no change is needed
|
|
if ( isset( $_wp_additional_image_sizes[$s]['width'] ) ) {
|
|
$sizes[$s]['width'] = intval( $_wp_additional_image_sizes[$s]['width'] ); // For theme-added sizes
|
|
} else {
|
|
$sizes[$s]['width'] = get_option( "{$s}_size_w" ); // For default sizes set in options
|
|
}
|
|
|
|
if ( isset( $_wp_additional_image_sizes[$s]['height'] ) ) {
|
|
$sizes[$s]['height'] = intval( $_wp_additional_image_sizes[$s]['height'] ); // For theme-added sizes
|
|
} else {
|
|
$sizes[$s]['height'] = get_option( "{$s}_size_h" ); // For default sizes set in options
|
|
}
|
|
|
|
if ( isset( $_wp_additional_image_sizes[$s]['crop'] ) ) {
|
|
$sizes[$s]['crop'] = intval( $_wp_additional_image_sizes[$s]['crop'] ); // For theme-added sizes
|
|
} else {
|
|
$sizes[$s]['crop'] = get_option( "{$s}_crop" ); // For default sizes set in options
|
|
}
|
|
|
|
}
|
|
|
|
$sizes[$s]['file'] = $filename;
|
|
$sizes[$s]['mime-type'] = 'image/svg+xml';
|
|
|
|
}
|
|
|
|
$metadata['sizes'] = $sizes;
|
|
|
|
}
|
|
|
|
return $metadata;
|
|
|
|
}
|
|
add_filter( 'wp_generate_attachment_metadata', 'bodhi_svgs_generate_svg_attachment_metadata', 10, 3 );
|
|
|
|
/*
|
|
* SVG Sanitization
|
|
* Only triggers when its enabled by admin
|
|
*/
|
|
function bodhi_svgs_sanitize( $file ){
|
|
|
|
global $sanitizer;
|
|
|
|
$sanitizer->setAllowedTags( new bodhi_svg_tags() );
|
|
$sanitizer->setAllowedAttrs( new bodhi_svg_attributes() );
|
|
|
|
$dirty = file_get_contents( $file );
|
|
|
|
// try to decode if gzipped is enabled
|
|
if ( $is_zipped = bodhi_svgs_is_gzipped( $dirty ) ) {
|
|
|
|
$dirty = gzdecode( $dirty );
|
|
|
|
// return on failure, since we can't read file
|
|
if ( $dirty === false ) {
|
|
return false;
|
|
}
|
|
|
|
}
|
|
|
|
// remove remote references since they are dangerous and lead to injection
|
|
$sanitizer->removeRemoteReferences(true);
|
|
|
|
// enable minify in library if its enabled in admin panel
|
|
bodhi_svgs_minify();
|
|
|
|
$clean = $sanitizer->sanitize( $dirty );
|
|
|
|
if ( $clean === false ) {
|
|
return false;
|
|
}
|
|
|
|
// if we were gzipped, we need to re-zip
|
|
if ( $is_zipped ) {
|
|
$clean = gzencode( $clean );
|
|
}
|
|
|
|
file_put_contents( $file, $clean );
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
function bodhi_svgs_minify() {
|
|
|
|
global $bodhi_svgs_options;
|
|
global $sanitizer;
|
|
|
|
if ( !empty($bodhi_svgs_options['minify_svg']) && $bodhi_svgs_options['minify_svg'] === 'on' ) {
|
|
$sanitizer->minify(true);
|
|
}
|
|
|
|
}
|
|
|
|
function bodhi_svgs_is_gzipped( $contents ) {
|
|
|
|
if ( function_exists( 'mb_strpos' ) ) {
|
|
return 0 === mb_strpos( $contents, "\x1f" . "\x8b" . "\x08" );
|
|
} else {
|
|
return 0 === strpos( $contents, "\x1f" . "\x8b" . "\x08" );
|
|
}
|
|
|
|
}
|
|
|
|
function bodhi_svgs_sanitize_svg( $file ) {
|
|
|
|
global $bodhi_svgs_options;
|
|
|
|
if ( !empty($bodhi_svgs_options['sanitize_svg']) && $bodhi_svgs_options['sanitize_svg'] === 'on' && $bodhi_svgs_options['sanitize_on_upload_roles'][0] != "none" ) {
|
|
|
|
if ( $file['type'] === 'image/svg+xml' ) {
|
|
|
|
$sanitize_on_upload_roles_array = array();
|
|
|
|
$should_sanitize_svg = array();
|
|
|
|
$sanitize_on_upload_roles_array = (array) $bodhi_svgs_options['sanitize_on_upload_roles'];
|
|
|
|
$user = wp_get_current_user();
|
|
|
|
$current_user_roles = ( array ) $user->roles;
|
|
|
|
$should_sanitize_svg = array_intersect($sanitize_on_upload_roles_array, $current_user_roles);
|
|
|
|
if( empty($should_sanitize_svg) ) {
|
|
// Do nothing Here
|
|
}
|
|
elseif ( ! bodhi_svgs_sanitize( $file['tmp_name'] ) ) {
|
|
$file['error'] = __( "Sorry, this file couldn't be sanitized for security reasons and wasn't uploaded",
|
|
'safe-svg' );
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return $file;
|
|
|
|
}
|
|
|
|
// Sanitize svg if user has enabled option
|
|
add_filter( 'wp_handle_upload_prefilter', 'bodhi_svgs_sanitize_svg' );
|
|
|
|
// Fix image widget PHP warnings
|
|
function bodhi_svgs_get_attachment_metadata( $data ) {
|
|
|
|
$res = $data;
|
|
|
|
if ( !isset( $data['width'] ) || !isset( $data['height'] ) ) {
|
|
$res = false;
|
|
}
|
|
|
|
return $res;
|
|
|
|
}
|
|
// add_filter( 'wp_get_attachment_metadata' , 'bodhi_svgs_get_attachment_metadata' );
|
|
// Commented this out 20200307 because it was stripping metadata from other attachments as well. Need to make this target only SVG attachments.
|
|
|
|
// remove srcset for svg images
|
|
function bodhi_svgs_disable_srcset( $sources ) {
|
|
|
|
$first_element = reset($sources);
|
|
if ( isset($first_element) && !empty($first_element['url']) ) {
|
|
|
|
$ext = pathinfo(reset($sources)['url'], PATHINFO_EXTENSION);
|
|
|
|
if ( $ext == 'svg' ) {
|
|
|
|
// return empty array
|
|
$sources = array();
|
|
|
|
return $sources;
|
|
|
|
} else {
|
|
|
|
return $sources;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return $sources;
|
|
|
|
}
|
|
|
|
}
|
|
add_filter( 'wp_calculate_image_srcset', 'bodhi_svgs_disable_srcset' );
|
|
|
|
// fix for division by zero error for SVGs
|
|
// proposed by starsis
|
|
// https://github.com/WordPress/gutenberg/issues/36603
|
|
|
|
function bodhi_svgs_dimension_fallback( $image, $attachment_id, $size, $icon ) {
|
|
|
|
// only manipulate for svgs
|
|
if ( get_post_mime_type($attachment_id) == 'image/svg+xml' ) {
|
|
|
|
if ( isset($image[1]) && $image[1] === 0 ) {
|
|
$image[1] = 1;
|
|
}
|
|
if ( isset($image[2]) && $image[2] === 0 ) {
|
|
$image[2] = 1;
|
|
}
|
|
|
|
}
|
|
|
|
return $image;
|
|
|
|
}
|
|
add_filter( 'wp_get_attachment_image_src', 'bodhi_svgs_dimension_fallback', 10, 4 );
|