77 lines
2.2 KiB
PHP
77 lines
2.2 KiB
PHP
<?php
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defined( 'ABSPATH' ) || exit;
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/**
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* Add width and height attributes on all images
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*
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* @since 2.2.2 This feature is enabled by a hook
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* @since 1.3.0 This process is called via the new filter rocket_buffer
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* @since 1.3.0 It's possible to not specify dimensions of an image with data-no-image-dimensions attribute
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* @since 1.1.2 Fix Bug : No conflit with Photon Plugin (Jetpack)
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* @since 1.1.0
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*
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* @param string $buffer HTML content.
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* @return string Modified HTML content
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*/
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function rocket_specify_image_dimensions( $buffer ) {
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/**
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* Filter images dimensions attributes
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*
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* @since 2.2
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*
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* @param bool Do the job or not.
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*/
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if ( ! apply_filters( 'rocket_specify_image_dimensions', false ) ) {
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return $buffer;
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}
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// Get all images without width or height attribute.
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preg_match_all( '/<img(?:[^>](?!(height|width)=))*+>/i', $buffer, $images_match );
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foreach ( $images_match[0] as $image ) {
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// Don't touch lazy-load file (no conflit with Photon (Jetpack)).
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if ( strpos( $image, 'data-lazy-original' ) || strpos( $image, 'data-no-image-dimensions' ) ) {
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continue;
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}
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$tmp = $image;
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// Get link of the file.
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preg_match( '/src=[\'"]([^\'"]+)/', $image, $src_match );
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// Get infos of the URL.
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$image_url = wp_parse_url( $src_match[1] );
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// Check if the link isn't external.
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if ( empty( $image_url['host'] ) || rocket_remove_url_protocol( home_url() ) === $image_url['host'] ) {
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// Get image attributes.
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$sizes = getimagesize( ABSPATH . $image_url['path'] );
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} else {
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/**
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* Filter distant images dimensions attributes
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*
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* @since 2.2
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*
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* @param bool Do the job or not
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*/
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if ( ini_get( 'allow_url_fopen' ) && apply_filters( 'rocket_specify_image_dimensions_for_distant', false ) ) {
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// Get image attributes.
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$sizes = getimagesize( $image_url['scheme'] . '://' . $image_url['host'] . $image_url['path'] );
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}
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}
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if ( ! empty( $sizes ) ) {
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// Add width and width attribute.
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$image = str_replace( '<img', '<img ' . $sizes[3], $image );
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// Replace image with new attributes.
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$buffer = str_replace( $tmp, $image, $buffer );
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}
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}
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return $buffer;
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}
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add_filter( 'rocket_buffer', 'rocket_specify_image_dimensions', 10 );
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