63 lines
2.1 KiB
PHP
63 lines
2.1 KiB
PHP
<?php
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// Put this in wp-config.php and replace https://example.com/ with the URL of the production site.
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define( 'RH_USE_REMOTE_MEDIA_URL', 'https://example.com/' );
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// Put the rest of this in functions.php or a custom plugin or somewhere else.
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if ( defined( 'RH_USE_REMOTE_MEDIA_URL' ) && ! empty( RH_USE_REMOTE_MEDIA_URL ) ) {
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add_filter( 'wp_get_attachment_image_src', array( $this, 'filter_wp_get_attachment_image_src' ) );
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add_filter( 'wp_calculate_image_srcset', array( $this, 'filter_wp_calculate_image_srcset' ) );
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add_filter( 'wp_get_attachment_url', array( $this, 'filter_wp_get_attachment_url' ) );
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}
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function filter_wp_get_attachment_image_src( $image = array() ) {
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if ( ! is_array( $image ) || empty( $image ) ) {
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return $image;
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}
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$wp_upload_dir = wp_upload_dir();
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$base_dir = $wp_upload_dir['basedir'];
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$base_url = $wp_upload_dir['baseurl'];
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$absolute_path = str_replace( $base_url, $base_dir, $image[0] );
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if ( file_exists( $absolute_path ) ) {
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return $image;
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}
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$find = get_site_url();
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$replace = RH_USE_REMOTE_MEDIA_URL;
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$image[0] = str_replace( $find, $replace, $image[0] );
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return $image;
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}
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function filter_wp_calculate_image_srcset( $src = array() ) {
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if ( is_array( $src ) && ! is_admin() ) {
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$wp_upload_dir = wp_upload_dir();
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$base_dir = $wp_upload_dir['basedir'];
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$base_url = $wp_upload_dir['baseurl'];
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$find = get_site_url();
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$replace = RH_USE_REMOTE_MEDIA_URL;
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foreach ( $src as $key => $val ) {
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$absolute_path = str_replace( $base_url, $base_dir, $val['url'] );
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if ( ! file_exists( $absolute_path ) ) {
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$val['url'] = str_replace( $find, $replace, $val['url'] );
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$src[ $key ] = $val;
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}
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}
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}
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return $src;
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}
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function filter_wp_get_attachment_url( $url = '' ) {
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if ( is_admin() ) {
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return $url;
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}
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$wp_upload_dir = wp_upload_dir();
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$base_dir = $wp_upload_dir['basedir'];
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$base_url = $wp_upload_dir['baseurl'];
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$find = get_site_url();
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$replace = RH_USE_REMOTE_MEDIA_URL;
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$absolute_path = str_replace( $base_url, $base_dir, $url );
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if ( ! file_exists( $absolute_path ) ) {
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$url = str_replace( $find, $replace, $url );
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}
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return $url;
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}
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