add wp-rocket

wp-content/plugins/wp-rocket/inc/front/images.php

@@ -0,0 +1,76 @@
+<?php
+
+defined( 'ABSPATH' ) || exit;
+
+/**
+ * Add width and height attributes on all images
+ *
+ * @since 2.2.2 This feature is enabled by a hook
+ * @since 1.3.0 This process is called via the new filter rocket_buffer
+ * @since 1.3.0 It's possible to not specify dimensions of an image with data-no-image-dimensions attribute
+ * @since 1.1.2 Fix Bug : No conflit with Photon Plugin (Jetpack)
+ * @since 1.1.0
+ *
+ * @param string $buffer HTML content.
+ * @return string Modified HTML content
+ */
+function rocket_specify_image_dimensions( $buffer ) {
+	/**
+	 * Filter images dimensions attributes
+	 *
+	 * @since 2.2
+	 *
+	 * @param bool Do the job or not.
+	 */
+	if ( ! apply_filters( 'rocket_specify_image_dimensions', false ) ) {
+		return $buffer;
+	}
+
+	// Get all images without width or height attribute.
+	preg_match_all( '/<img(?:[^>](?!(height|width)=))*+>/i', $buffer, $images_match );
+
+	foreach ( $images_match[0] as $image ) {
+
+		// Don't touch lazy-load file (no conflit with Photon (Jetpack)).
+		if ( strpos( $image, 'data-lazy-original' ) || strpos( $image, 'data-no-image-dimensions' ) ) {
+			continue;
+		}
+
+		$tmp = $image;
+
+		// Get link of the file.
+		preg_match( '/src=[\'"]([^\'"]+)/', $image, $src_match );
+
+		// Get infos of the URL.
+		$image_url = wp_parse_url( $src_match[1] );
+
+		// Check if the link isn't external.
+		if ( empty( $image_url['host'] ) || rocket_remove_url_protocol( home_url() ) === $image_url['host'] ) {
+			// Get image attributes.
+			$sizes = getimagesize( ABSPATH . $image_url['path'] );
+		} else {
+			/**
+			 * Filter distant images dimensions attributes
+			 *
+			 * @since 2.2
+			 *
+			 * @param bool Do the job or not
+			 */
+			if ( ini_get( 'allow_url_fopen' ) && apply_filters( 'rocket_specify_image_dimensions_for_distant', false ) ) {
+				// Get image attributes.
+				$sizes = getimagesize( $image_url['scheme'] . '://' . $image_url['host'] . $image_url['path'] );
+			}
+		}
+
+		if ( ! empty( $sizes ) ) {
+			// Add width and width attribute.
+			$image = str_replace( '<img', '<img ' . $sizes[3], $image );
+
+			// Replace image with new attributes.
+			$buffer = str_replace( $tmp, $image, $buffer );
+		}
+	}
+
+	return $buffer;
+}
+add_filter( 'rocket_buffer', 'rocket_specify_image_dimensions', 10 );