%PDF-
%PDF-
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Mini Shell
<?php
/**
* Handles optimizing images.
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
class autoptimizeImages
{
/**
* Options.
*
* @var array
*/
protected $options = array();
/**
* Singleton instance.
*
* @var self|null
*/
protected static $instance = null;
public function __construct( array $options = array() )
{
// If options are not provided, fetch them.
if ( empty( $options ) ) {
$options = $this->fetch_options();
}
$this->set_options( $options );
$this->lazyload_counter = 0;
}
public function set_options( array $options )
{
$this->options = $options;
return $this;
}
public static function fetch_options()
{
$value = autoptimizeOptionWrapper::get_option( 'autoptimize_imgopt_settings' );
if ( empty( $value ) ) {
// Fallback to returning defaults when no stored option exists yet.
$value = autoptimizeConfig::get_ao_imgopt_default_options();
}
// get service availability and add it to the options-array.
$value['availabilities'] = autoptimizeOptionWrapper::get_option( 'autoptimize_service_availablity' );
if ( empty( $value['availabilities'] ) || ! is_array( $value['availabilities'] ) ) {
$value['availabilities'] = null;
if ( true === autoptimizeImages::imgopt_active() ) {
$value['availabilities'] = autoptimizeUtils::check_service_availability( true );
}
if ( null === $value['availabilities'] ) {
// We can't seem to check service availability, use mock result with imgopt status UP.
$_mock_settings = array( 'extra_imgopt' => array( 'status' => 'up', 'hosts' => array( '1' => 'https://sp-ao.shortpixel.ai/' ) ), 'critcss' => array( 'status' => 'up' ) );
$value['availabilities'] = $_mock_settings;
}
}
return $value;
}
public static function imgopt_active()
{
// function to quickly check if imgopt is active, used below but also in
// autoptimizeMain.php to start ob_ even if no HTML, JS or CSS optimizing is done
// and does not use/ request the availablity data (which could slow things down).
static $imgopt_active = null;
if ( null === $imgopt_active ) {
$opts = autoptimizeOptionWrapper::get_option( 'autoptimize_imgopt_settings', '' );
if ( ! empty( $opts ) && is_array( $opts ) && array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $opts ) && ! empty( $opts['autoptimize_imgopt_checkbox_field_1'] ) && '1' === $opts['autoptimize_imgopt_checkbox_field_1'] ) {
$imgopt_active = true;
} else {
$imgopt_active = false;
}
}
return $imgopt_active;
}
/**
* Helper for getting a singleton instance. While being an
* anti-pattern generally, it comes in handy for now from a
* readability/maintainability perspective, until we get some
* proper dependency injection going.
*
* @return self
*/
public static function instance()
{
if ( null === self::$instance ) {
self::$instance = new self();
}
return self::$instance;
}
public function run()
{
if ( is_admin() ) {
if ( is_multisite() && is_network_admin() && autoptimizeOptionWrapper::is_ao_active_for_network() ) {
add_action( 'network_admin_menu', array( $this, 'imgopt_admin_menu' ) );
} else {
add_action( 'admin_menu', array( $this, 'imgopt_admin_menu' ) );
}
add_filter( 'autoptimize_filter_settingsscreen_tabs', array( $this, 'add_imgopt_tab' ), 9 );
} else {
add_action( 'wp', array( $this, 'run_on_frontend' ) );
}
}
public function run_on_frontend() {
if ( ! $this->should_run() ) {
if ( $this->should_lazyload() ) {
add_filter(
'wp_lazy_loading_enabled',
array( $this, 'should_disable_core_lazyload' ),
10,
3
);
add_filter(
'autoptimize_html_after_minify',
array( $this, 'filter_lazyload_images' ),
10,
1
);
add_action(
'wp_footer',
array( $this, 'add_lazyload_js_footer' ),
10,
0
);
}
return;
}
$active = false;
if ( apply_filters( 'autoptimize_filter_imgopt_do', true ) ) {
add_filter(
'autoptimize_html_after_minify',
array( $this, 'filter_optimize_images' ),
10,
1
);
$active = true;
}
if ( apply_filters( 'autoptimize_filter_imgopt_do_css', true ) ) {
add_filter(
'autoptimize_filter_base_replace_cdn',
array( $this, 'filter_optimize_css_images' ),
10,
1
);
$active = true;
}
if ( $active ) {
add_filter(
'autoptimize_extra_filter_tobepreconn',
array( $this, 'filter_preconnect_imgopt_url' ),
10,
1
);
}
if ( $this->should_lazyload() ) {
add_filter(
'wp_lazy_loading_enabled',
array( $this, 'should_disable_core_lazyload' ),
10,
3
);
add_action(
'wp_footer',
array( $this, 'add_lazyload_js_footer' ),
10,
0
);
}
}
/**
* Disables core's native lazyload for images, not for iframes.
*
* @return bool
*/
public function should_disable_core_lazyload( $flag = true, $tag = '', $context = '' ) {
if ( 'img' === $tag ) {
return false;
}
return $flag;
}
/**
* Basic checks before we can run.
*
* @return bool
*/
protected function should_run()
{
$opts = $this->options;
$service_not_down = ( 'down' !== $opts['availabilities']['extra_imgopt']['status'] );
$not_launch_status = ( 'launch' !== $opts['availabilities']['extra_imgopt']['status'] );
$do_cdn = true;
$_userstatus = $this->get_imgopt_provider_userstatus();
if ( isset( $_userstatus['Status'] ) && ( -2 == $_userstatus['Status'] || -3 == $_userstatus['Status'] ) ) {
// don't even attempt to put images on CDN if heavily exceeded threshold or if site not reachable.
$do_cdn = false;
}
if (
$this->imgopt_active()
&& $do_cdn
&& $service_not_down
&& ( $not_launch_status || $this->launch_ok() )
) {
return true;
}
return false;
}
public function get_imgopt_host()
{
static $imgopt_host = null;
if ( null === $imgopt_host ) {
$imgopt_host = 'https://sp-ao.shortpixel.ai/';
$avail_imgopt = $this->options['availabilities']['extra_imgopt'];
if ( ! empty( $avail_imgopt ) && array_key_exists( 'hosts', $avail_imgopt ) && is_array( $avail_imgopt['hosts'] ) ) {
$imgopt_host = array_rand( array_flip( $avail_imgopt['hosts'] ) );
}
$imgopt_host = apply_filters( 'autoptimize_filter_imgopt_host', $imgopt_host );
}
return $imgopt_host;
}
public static function get_imgopt_host_wrapper()
{
// needed for CI tests.
$self = new self();
return $self->get_imgopt_host();
}
public static function get_service_url_suffix()
{
$suffix = '/af/SPZURYE109483/' . AUTOPTIMIZE_SITE_DOMAIN;
return $suffix;
}
public function get_img_quality_string()
{
static $quality = null;
if ( null === $quality ) {
$q_array = $this->get_img_quality_array();
$setting = $this->get_img_quality_setting();
$quality = apply_filters(
'autoptimize_filter_imgopt_quality',
'q_' . $q_array[ $setting ]
);
}
return $quality;
}
public function get_img_quality_array()
{
static $map = null;
if ( null === $map ) {
$map = array(
'1' => 'lossy',
'2' => 'glossy',
'3' => 'lossless',
);
$map = apply_filters(
'autoptimize_filter_imgopt_quality_array',
$map
);
}
return $map;
}
public function get_img_quality_setting()
{
static $q = null;
if ( null === $q ) {
if ( is_array( $this->options ) && array_key_exists( 'autoptimize_imgopt_select_field_2', $this->options ) ) {
$setting = $this->options['autoptimize_imgopt_select_field_2'];
}
if ( ! isset( $setting ) || empty( $setting ) || ( '1' !== $setting && '3' !== $setting ) ) {
// default image opt. value is 2 ("glossy").
$q = '2';
} else {
$q = $setting;
}
}
return $q;
}
public function filter_preconnect_imgopt_url( array $in )
{
$url_parts = parse_url( $this->get_imgopt_base_url() );
$in[] = $url_parts['scheme'] . '://' . $url_parts['host'];
return $in;
}
/**
* Makes sure given url contains the full scheme and hostname
* in case they're not present already.
*
* @param string $in Image url to normalize.
*
* @return string
*/
private function normalize_img_url( $in )
{
// Only parse the site url once.
static $parsed_site_url = null;
if ( null === $parsed_site_url ) {
$parsed_site_url = parse_url( site_url() );
}
// get CDN domain once.
static $cdn_domain = null;
if ( is_null( $cdn_domain ) ) {
$cdn_url = $this->get_cdn_url();
if ( ! empty( $cdn_url ) ) {
$cdn_domain = parse_url( $cdn_url, PHP_URL_HOST );
} else {
$cdn_domain = '';
}
}
/**
* This method gets called a lot, often for identical urls it seems.
* `filter_optimize_css_images()` calls us, uses the resulting url and
* gives it to `can_optimize_image()`, and if that returns trueish
* then `build_imgopt_url()` is called (which, again, calls this method).
* Until we dig deeper into whether this all must really happen that
* way, having an internal cache here helps (to avoid doing repeated
* identical string operations).
*/
static $cache = null;
if ( null === $cache ) {
$cache = array();
}
// Do the work on cache miss only.
if ( ! isset( $cache[ $in ] ) ) {
// Default to (the trimmed version of) what was given to us.
$result = trim( $in );
// Some silly plugins wrap background images in html-encoded quotes, so remove those from the img url.
$result = $this->fix_silly_bgimg_quotes( $result );
if ( autoptimizeUtils::is_protocol_relative( $result ) ) {
$result = $parsed_site_url['scheme'] . ':' . $result;
} elseif ( 0 === strpos( $result, '/' ) ) {
// Root-relative...
$result = $parsed_site_url['scheme'] . '://' . $parsed_site_url['host'] . $result;
} elseif ( ! empty( $cdn_domain ) && false === strpos( $this->get_imgopt_host(), $cdn_domain ) && strpos( $result, $cdn_domain ) !== 0 ) {
// remove CDN except if it is the image optimization one.
$result = str_replace( $cdn_domain, $parsed_site_url['host'], $result );
}
// filter (default off) to remove QS from image URL's to avoid eating away optimization credits.
if ( apply_filters( 'autoptimize_filter_imgopt_no_querystring', false ) && strpos( $result, '?' ) !== false ) {
$result = strtok( $result, '?' );
}
$result = apply_filters( 'autoptimize_filter_imgopt_normalized_url', $result );
// Store in cache.
$cache[ $in ] = $result;
}
return $cache[ $in ];
}
public function filter_optimize_css_images( $in )
{
$in = $this->normalize_img_url( $in );
if ( $this->can_optimize_image( $in ) && false === strpos( $in, $this->get_imgopt_host() ) ) {
return $this->build_imgopt_url( $in, '', '' );
} else {
return $in;
}
}
private function get_imgopt_base_url()
{
static $imgopt_base_url = null;
if ( null === $imgopt_base_url ) {
$imgopt_host = $this->get_imgopt_host();
$quality = $this->get_img_quality_string();
$ret_val = apply_filters( 'autoptimize_filter_imgopt_wait', 'ret_img' ); // values: ret_wait, ret_img, ret_json, ret_blank.
if ( $this->should_ngimg() ) {
$sp_to_string = 'to_auto';
} else {
$sp_to_string = 'to_webp';
}
$sp_to_string = apply_filters( 'autoptimize_filter_imgopt_format', $sp_to_string ); // values: empty (= jpeg), to_webp (smart; webp or fallback), to_avif (avif or fallback) or to_auto (smart avif, webp or fallback).
$imgopt_base_url = $imgopt_host . 'client/' . $sp_to_string . ',' . $quality . ',' . $ret_val;
$imgopt_base_url = apply_filters( 'autoptimize_filter_imgopt_base_url', $imgopt_base_url );
}
return $imgopt_base_url;
}
private function can_optimize_image( $url, $tag = '', $testing = false )
{
static $cdn_url = null;
static $nopti_images = null;
if ( null === $cdn_url ) {
$cdn_url = apply_filters(
'autoptimize_filter_base_cdnurl',
autoptimizeOptionWrapper::get_option( 'autoptimize_cdn_url', '' )
);
}
if ( null === $nopti_images || $testing ) {
if ( is_array( $this->options ) && array_key_exists( 'autoptimize_imgopt_text_field_6', $this->options ) ) {
$nopti_images = $this->options['autoptimize_imgopt_text_field_6'];
}
$nopti_images = apply_filters( 'autoptimize_filter_imgopt_noptimize', $nopti_images );
}
$site_host = AUTOPTIMIZE_SITE_DOMAIN;
$url = $this->normalize_img_url( $url );
$url_parsed = parse_url( $url );
if ( array_key_exists( 'host', $url_parsed ) && $url_parsed['host'] !== $site_host && empty( $cdn_url ) ) {
return false;
} elseif ( ! empty( $cdn_url ) && strpos( $url, $cdn_url ) === false && array_key_exists( 'host', $url_parsed ) && $url_parsed['host'] !== $site_host ) {
return false;
} elseif ( strpos( $url, '.php' ) !== false ) {
return false;
} elseif ( str_ireplace( array( '.png', '.gif', '.jpg', '.jpeg', '.webp', '.avif' ), '', $url_parsed['path'] ) === $url_parsed['path'] ) {
// fixme: better check against end of string.
return false;
} elseif ( ! empty( $nopti_images ) ) {
$nopti_images_array = array_filter( array_map( 'trim', explode( ',', $nopti_images ) ) );
foreach ( $nopti_images_array as $nopti_image ) {
if ( strpos( $url, $nopti_image ) !== false || ( ( '' !== $tag && strpos( $tag, $nopti_image ) !== false ) ) ) {
return false;
}
}
}
return true;
}
private function build_imgopt_url( $orig_url, $width = 0, $height = 0 )
{
// sanitize width and height.
if ( strpos( $width, '%' ) !== false ) {
$width = 0;
}
if ( strpos( $height, '%' ) !== false ) {
$height = 0;
}
$width = (int) $width;
$height = (int) $height;
$filtered_url = apply_filters(
'autoptimize_filter_imgopt_build_url',
$orig_url,
$width,
$height
);
// If filter modified the url, return that.
if ( $filtered_url !== $orig_url ) {
return $filtered_url;
}
$normalized_url = $this->normalize_img_url( $orig_url );
// if the URL is ascii we check if we have a real URL with filter_var (which only works on ascii url's) and if not a real URL we return the original one.
if ( apply_filters( 'autoptimize_filter_imgopt_check_normalized_url', true ) && ! preg_match( '/[^\x20-\x7e]/', $normalized_url ) && false === filter_var( $normalized_url, FILTER_VALIDATE_URL ) ) {
return $orig_url;
}
$imgopt_base_url = $this->get_imgopt_base_url();
$imgopt_size = '';
if ( $width && 0 !== $width ) {
$imgopt_size = ',w_' . $width;
}
if ( $height && 0 !== $height ) {
$imgopt_size .= ',h_' . $height;
}
$url = $imgopt_base_url . $imgopt_size . '/' . $normalized_url;
return $url;
}
public function replace_data_thumbs( $matches )
{
return $this->replace_img_callback( $matches, 150, 150 );
}
public function replace_img_callback( $matches, $width = 0, $height = 0 )
{
$_normalized_img_url = $this->normalize_img_url( $matches[1] );
if ( $this->can_optimize_image( $matches[1], $matches[0] ) ) {
return str_replace( $matches[1], $this->build_imgopt_url( $_normalized_img_url, $width, $height ), $matches[0] );
} else {
return $matches[0];
}
}
public function replace_icon_callback( $matches )
{
if ( array_key_exists( '2', $matches ) ) {
$sizes = explode( 'x', $matches[2] );
$width = $sizes[0];
$height = $sizes[1];
} else {
$width = 180;
$height = 180;
}
// make sure we're not trying to optimize a *.ico file
if ( strpos( $matches[1], '.ico' ) === false ) {
return $this->replace_img_callback( $matches, $width, $height );
} else {
return $matches[0];
}
}
public function filter_optimize_images( $in, $testing = false )
{
/*
* potential future functional improvements:
*
* filter for critical CSS.
*/
$to_replace = array();
$to_preload = '';
// hide (no)script tags to avoid replacing (and potentially breaking) images in script tags.
if ( apply_filters( 'autoptimize_filter_imgopt_hide_script', true ) || $this->should_lazyload() ) {
$in = autoptimizeBase::replace_contents_with_marker_if_exists(
'SCRIPT',
'<script',
'#<(?:no)?script.*?<\/(?:no)?script>#is',
$in
);
}
// get img preloads as set in post metabox.
$metabox_preloads = array_filter( array_map( 'trim', explode( ',', wp_strip_all_tags( autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_preload' ) ) ) ) );
// extract img tags.
if ( preg_match_all( '#<img[^>]*src[^>]*>#Usmi', $in, $matches ) ) {
foreach ( $matches[0] as $tag ) {
$tag = apply_filters( 'autoptimize_filter_imgopt_tag_preopt' , $tag );
$orig_tag = $tag;
$imgopt_w = '';
$imgopt_h = '';
// first do (data-)srcsets.
if ( preg_match_all( '#srcset=("|\')(.*)("|\')#Usmi', $tag, $allsrcsets, PREG_SET_ORDER ) ) {
foreach ( $allsrcsets as $srcset ) {
$srcset = $srcset[2];
$orig_srcset = $srcset;
$srcsets = explode( ',', $srcset );
foreach ( $srcsets as $indiv_srcset ) {
$indiv_srcset_parts = explode( ' ', trim( $indiv_srcset ) );
if ( isset( $indiv_srcset_parts[1] ) && rtrim( $indiv_srcset_parts[1], 'w' ) !== $indiv_srcset_parts[1] ) {
$imgopt_w = rtrim( $indiv_srcset_parts[1], 'w' );
}
if ( $this->can_optimize_image( $indiv_srcset_parts[0], $tag, $testing ) && false === apply_filters( 'autoptimize_filter_imgopt_do_spai', false ) ) {
$imgopt_url = $this->build_imgopt_url( $indiv_srcset_parts[0], $imgopt_w, '' );
$srcset = str_replace( $indiv_srcset_parts[0], $imgopt_url, $srcset );
}
}
$tag = str_replace( $orig_srcset, $srcset, $tag );
}
}
// proceed with img src.
// get width and height and add to $imgopt_size.
$_get_size = $this->get_size_from_tag( $tag );
$imgopt_w = $_get_size['width'];
$imgopt_h = $_get_size['height'];
// then start replacing images src.
if ( preg_match_all( '#src=(?:"|\')(?!data)(.*)(?:"|\')#Usmi', $tag, $urls, PREG_SET_ORDER ) ) {
foreach ( $urls as $url ) {
$full_src_orig = $url[0];
$url = $url[1];
if ( $this->can_optimize_image( $url, $tag, $testing ) && false === apply_filters( 'autoptimize_filter_imgopt_do_spai', false ) ) {
$imgopt_url = $this->build_imgopt_url( $url, $imgopt_w, $imgopt_h );
$full_imgopt_src = str_replace( $url, $imgopt_url, $full_src_orig );
$tag = str_replace( $full_src_orig, $full_imgopt_src, $tag );
}
}
}
// do lazyload stuff.
if ( $this->should_lazyload( $in ) && ! empty( $url ) ) {
// first do lpiq placeholder logic.
if ( strpos( $url, $this->get_imgopt_host() ) === 0 ) {
// if all img src have been replaced during srcset, we have to extract the
// origin url from the imgopt one to be able to set a lqip placeholder.
$_url = substr( $url, strpos( $url, '/http' ) + 1 );
} else {
$_url = $url;
}
$_url = $this->normalize_img_url( $_url );
$placeholder = '';
if ( $this->can_optimize_image( $_url, $tag ) && apply_filters( 'autoptimize_filter_imgopt_lazyload_dolqip', true, $_url ) && false === apply_filters( 'autoptimize_filter_imgopt_do_spai', false ) ) {
$lqip_w = '';
$lqip_h = '';
if ( isset( $imgopt_w ) && ! empty( $imgopt_w ) ) {
$lqip_w = ',w_' . $imgopt_w;
}
if ( isset( $imgopt_h ) && ! empty( $imgopt_h ) ) {
$lqip_h = ',h_' . $imgopt_h;
}
$placeholder = $this->get_imgopt_host() . 'client/q_lqip,ret_wait' . $lqip_w . $lqip_h . '/' . $_url;
}
// then call add_lazyload-function with lpiq placeholder if set.
$tag = $this->add_lazyload( $tag, $placeholder );
}
// add decoding="async" behind filter, not sure if I'll make it default true yet.
if ( true === apply_filters( 'autoptimize_filter_imgopt_add_decoding', true ) && false === strpos( $tag, ' decoding=' ) ) {
$tag = str_replace( '<img ', '<img decoding="async" ', $tag );
}
$tag = apply_filters( 'autoptimize_filter_imgopt_tag_postopt' , $tag );
// and add tag to array for later replacement.
if ( $tag !== $orig_tag ) {
$to_replace[ $orig_tag ] = $tag;
}
// and check if image needs to be prelaoded.
if ( ! empty( $metabox_preloads ) && is_array( $metabox_preloads ) && str_replace( $metabox_preloads, '', $tag ) !== $tag ) {
$to_preload .= $this->create_img_preload_tag( $tag );
}
}
}
// and replace all.
$out = str_replace( array_keys( $to_replace ), array_values( $to_replace ), $in );
// img thumbnails in e.g. woocommerce.
if ( strpos( $out, 'data-thumb' ) !== false && apply_filters( 'autoptimize_filter_imgopt_datathumbs', true ) ) {
$out = preg_replace_callback(
'/\<div(?:[^>]?)\sdata-thumb\=(?:\"|\')(.+?)(?:\"|\')(?:[^>]*)?\>/s',
array( $this, 'replace_data_thumbs' ),
$out
);
}
// background-image in inline style.
if ( strpos( $out, 'background-image:' ) !== false && apply_filters( 'autoptimize_filter_imgopt_backgroundimages', true ) ) {
$out = preg_replace_callback(
'/style=(?:"|\')[^<>]*?background-image:\s?url\((?:"|\')?([^"\')]*)(?:"|\')?\)/',
array( $this, 'replace_img_callback' ),
$out
);
}
// act on icon links.
if ( ( strpos( $out, '<link rel="icon"' ) !== false || ( strpos( $out, "<link rel='icon'" ) !== false ) ) && apply_filters( 'autoptimize_filter_imgopt_linkicon', true ) ) {
$out = preg_replace_callback(
'/<link\srel=(?:"|\')(?:apple-touch-)?icon(?:"|\').*\shref=(?:"|\')(.*)(?:"|\')(?:\ssizes=(?:"|\')(\d*x\d*)(?:"|\'))?\s\/>/Um',
array( $this, 'replace_icon_callback' ),
$out
);
}
// lazyload picture source tags and bgimage.
if ( $this->should_lazyload() ) {
$out = $this->process_picture_tag( $out, true, true );
$out = $this->process_bgimage( $out );
} else {
$out = $this->process_picture_tag( $out, true, false );
}
// restore (no)script tags.
if ( apply_filters( 'autoptimize_filter_imgopt_hide_script', true ) || $this->should_lazyload() ) {
$out = autoptimizeBase::restore_marked_content(
'SCRIPT',
$out
);
}
if ( ! empty( $metabox_preloads ) && is_array( $metabox_preloads ) && empty( $to_preload ) && false !== apply_filters( 'autoptimize_filter_imgopt_dopreloads', true ) ) {
// the preload was not in an img tag, so adding a non-responsive preload instead.
foreach( $metabox_preloads as $img_preload ) {
$to_preload .= '<link rel="preload" href="' . $img_preload . '" as="image">' ;
}
}
if ( ! empty( $to_preload ) ) {
$out = autoptimizeExtra::inject_preloads( $to_preload, $out );
}
return $out;
}
public static function get_size_from_tag( $tag ) {
// reusable function to extract widht and height from an image tag
// enforcing a filterable maximum width and height (default 4999X4999).
$width = '';
$height = '';
if ( preg_match( '#width=("|\')(.*)("|\')#Usmi', $tag, $_width ) ) {
if ( strpos( $_width[2], '%' ) === false ) {
$width = (int) $_width[2];
}
}
if ( preg_match( '#height=("|\')(.*)("|\')#Usmi', $tag, $_height ) ) {
if ( strpos( $_height[2], '%' ) === false ) {
$height = (int) $_height[2];
}
}
// check for and enforce (filterable) max sizes.
$_max_width = apply_filters( 'autoptimize_filter_imgopt_max_width', 4999 );
if ( $width > $_max_width ) {
$_width = $_max_width;
if ( ! empty( $height ) && is_int( $height ) ) {
$height = $_width / $width * $height;
}
$width = $_width;
}
$_max_height = apply_filters( 'autoptimize_filter_imgopt_max_height', 4999 );
if ( $height > $_max_height ) {
$_height = $_max_height;
if ( ! empty( $width ) && is_int( $width ) ) {
$width = $_height / $height * $width;
}
$height = $_height;
}
return array(
'width' => $width,
'height' => $height,
);
}
/**
* Lazyload functions
*/
public static function should_lazyload_wrapper() {
// needed in autoptimizeMain.php.
$self = new self();
return $self->should_lazyload();
}
public function should_lazyload( $context = '' ) {
if ( ! empty( $this->options['autoptimize_imgopt_checkbox_field_3'] ) && false === $this->check_nolazy() ) {
$lazyload_return = true;
} else {
$lazyload_return = false;
}
// If page/ post check post_meta to see if lazyload is off for page.
if ( false === autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_lazyload' ) ) {
$lazyload_return = false;
}
$lazyload_return = apply_filters( 'autoptimize_filter_imgopt_should_lazyload', $lazyload_return, $context );
return $lazyload_return;
}
public static function check_nolazy() {
if ( array_key_exists( 'ao_nolazy', $_GET ) && '1' === $_GET['ao_nolazy'] ) {
return true;
} else {
return false;
}
}
public function filter_lazyload_images( $in )
{
// only used is image optimization is NOT active but lazyload is.
$to_replace = array();
$to_preload = '';
// hide (no)script tags to avoid nesting noscript tags (as lazyloaded images add noscript).
$out = autoptimizeBase::replace_contents_with_marker_if_exists(
'SCRIPT',
'<script',
'#<(?:no)?script.*?<\/(?:no)?script>#is',
$in
);
// get img preloads as set in post metabox.
$metabox_preloads = array_filter( array_map( 'trim', explode( ',', wp_strip_all_tags( autoptimizeConfig::get_post_meta_ao_settings( 'ao_post_preload' ) ) ) ) );
// extract img tags and add lazyload attribs/ add preloads.
if ( preg_match_all( '#<img[^>]*src[^>]*>#Usmi', $out, $matches ) ) {
foreach ( $matches[0] as $tag ) {
if ( $this->should_lazyload( $out ) ) {
$to_replace[ $tag ] = $this->add_lazyload( $tag );
}
// and check if image needs to be prelaoded.
if ( ! empty( $metabox_preloads ) && is_array( $metabox_preloads ) && str_replace( $metabox_preloads, '', $tag ) !== $tag ) {
$to_preload .= $this->create_img_preload_tag( $tag );
}
}
$out = str_replace( array_keys( $to_replace ), array_values( $to_replace ), $out );
}
// and also lazyload picture tag.
$out = $this->process_picture_tag( $out, false, true );
// and inline style blocks with background-image.
$out = $this->process_bgimage( $out );
// restore noscript tags.
$out = autoptimizeBase::restore_marked_content(
'SCRIPT',
$out
);
if ( ! empty( $metabox_preloads ) && is_array( $metabox_preloads ) && empty( $to_preload ) && false !== apply_filters( 'autoptimize_filter_imgopt_dopreloads', true ) ) {
// the preload was not in an img tag, so adding a non-responsive preload instead.
foreach( $metabox_preloads as $img_preload ) {
$to_preload .= '<link rel="preload" href="' . $img_preload . '" as="image">' ;
}
}
if ( ! empty( $to_preload ) ) {
$out = autoptimizeExtra::inject_preloads( $to_preload, $out );
}
return $out;
}
public function add_lazyload( $tag, $placeholder = '' ) {
// adds actual lazyload-attributes to an image node.
$this->lazyload_counter++;
$_lazyload_from_nth = '';
if ( array_key_exists( 'autoptimize_imgopt_number_field_7', $this->options ) ) {
$_lazyload_from_nth = $this->options['autoptimize_imgopt_number_field_7'];
}
$_lazyload_from_nth = apply_filters( 'autoptimize_filter_imgopt_lazyload_from_nth', $_lazyload_from_nth );
if ( str_ireplace( $this->get_lazyload_exclusions(), '', $tag ) === $tag && $this->lazyload_counter >= $_lazyload_from_nth ) {
$tag = $this->maybe_fix_missing_quotes( $tag );
// store original tag for use in noscript version.
$noscript_tag = '<noscript>' . autoptimizeUtils::remove_id_from_node( $tag ) . '</noscript>';
$lazyload_class = apply_filters( 'autoptimize_filter_imgopt_lazyload_class', 'lazyload' );
// insert lazyload class.
$tag = $this->inject_classes_in_tag( $tag, "$lazyload_class " );
if ( ! $placeholder || empty( $placeholder ) ) {
// get image width & heigth for placeholder fun (and to prevent content reflow).
$_get_size = $this->get_size_from_tag( $tag );
$width = $_get_size['width'];
$height = $_get_size['height'];
if ( false === $width || empty( $width ) ) {
$width = 210; // default width for SVG placeholder.
}
if ( false === $height || empty( $height ) ) {
$height = $width / 3 * 2; // if no height, base it on width using the 3/2 aspect ratio.
}
// insert the actual lazyload stuff.
// see https://css-tricks.com/preventing-content-reflow-from-lazy-loaded-images/ for great read on why we're using empty svg's.
$placeholder = apply_filters( 'autoptimize_filter_imgopt_lazyload_placeholder', $this->get_default_lazyload_placeholder( $width, $height ) );
}
$tag = preg_replace( '/(\s)src=/', ' src=\'' . $placeholder . '\' data-src=', $tag );
$tag = preg_replace( '/(\s)srcset=/', ' data-srcset=', $tag );
// move sizes to data-sizes unless filter says no.
if ( apply_filters( 'autoptimize_filter_imgopt_lazyload_move_sizes', true ) ) {
$tag = str_replace( ' sizes=', ' data-sizes=', $tag );
}
// add the noscript-tag from earlier.
$tag = $noscript_tag . $tag;
$tag = apply_filters( 'autoptimize_filter_imgopt_lazyloaded_img', $tag );
}
return $tag;
}
public function add_lazyload_js_footer() {
if ( false === autoptimizeMain::should_buffer() || autoptimizeMain::is_amp_markup('') ) {
return;
}
// The JS will by default be excluded form autoptimization but this can be changed with a filter.
$noptimize_flag = '';
if ( apply_filters( 'autoptimize_filter_imgopt_lazyload_js_noptimize', true ) ) {
$noptimize_flag = ' data-noptimize="1"';
}
$_extra = autoptimizeOptionWrapper::get_option( 'autoptimize_extra_settings', '' );
if ( is_array( $_extra ) && array_key_exists( 'autoptimize_extra_checkbox_field_0', $_extra ) && ! empty( $_extra['autoptimize_extra_checkbox_field_0'] ) ) {
// if "remove query strings" is active in "extra", then let's be consistant and not add one ourselves? :)
$lazysizes_js = plugins_url( 'external/js/lazysizes.min.js', __FILE__ );
} else {
$lazysizes_js = plugins_url( 'external/js/lazysizes.min.js?ao_version=' . AUTOPTIMIZE_PLUGIN_VERSION, __FILE__ );
}
$cdn_url = $this->get_cdn_url();
if ( ! empty( $cdn_url ) ) {
$cdn_url = rtrim( $cdn_url, '/' );
$lazysizes_js = str_replace( AUTOPTIMIZE_WP_SITE_URL, $cdn_url, $lazysizes_js );
}
$type_js = '';
if ( apply_filters( 'autoptimize_filter_cssjs_addtype', false ) ) {
$type_js = ' type="text/javascript"';
}
// Adds lazyload CSS & JS to footer, using echo because wp_enqueue_script seems not to support pushing attributes (async).
echo apply_filters( 'autoptimize_filter_imgopt_lazyload_cssoutput', '<noscript><style>.lazyload{display:none;}</style></noscript>' );
echo apply_filters( 'autoptimize_filter_imgopt_lazyload_jsconfig', '<script' . $type_js . $noptimize_flag . '>window.lazySizesConfig=window.lazySizesConfig||{};window.lazySizesConfig.loadMode=1;</script>' );
echo apply_filters( 'autoptimize_filter_imgopt_lazyload_js', '<script async' . $type_js . $noptimize_flag . ' src=\'' . $lazysizes_js . '\'></script>' );
}
public static function create_img_preload_tag( $tag ) {
if ( false === apply_filters( 'autoptimize_filter_imgopt_dopreloads', true ) ) {
return '';
}
// clean up; remove tabs/ linebreaks/ spaces.
$tag = preg_replace( '/\s+/', ' ', $tag );
// rewrite img tag to link preload img.
$_from = array( '<img ', ' src=', ' sizes=', ' srcset=' );
$_to = array( '<link rel="preload" as="image" ', ' href=', ' imagesizes=', ' imagesrcset=' );
$tag = str_replace( $_from, $_to, $tag );
// and remove title, alt, class and id.
$tag = preg_replace( '/ ((?:title|alt|class|id|loading)=".*")/Um', '', $tag );
if ( $tag !== str_replace( array(' title=', ' class=', ' alt=', ' id=' ), '', $tag ) ) {
// 2nd regex pass if still title/ class/ alt in case single quotes were used iso doubles.
$tag = preg_replace( '/ ((?:title|alt|class|id|loading)=\'.*\')/Um', '', $tag );
}
return $tag;
}
public static function get_cdn_url() {
// getting CDN url here to avoid having to make bigger changes to autoptimizeBase.
static $cdn_url = null;
if ( null === $cdn_url ) {
$cdn_url = autoptimizeOptionWrapper::get_option( 'autoptimize_cdn_url', '' );
$cdn_url = autoptimizeUtils::tweak_cdn_url_if_needed( $cdn_url );
$cdn_url = apply_filters( 'autoptimize_filter_base_cdnurl', $cdn_url );
}
return $cdn_url;
}
public function get_lazyload_exclusions() {
// returns array of strings that if found in an <img tag will stop the img from being lazy-loaded.
static $exclude_lazyload_array = null;
if ( null === $exclude_lazyload_array ) {
$options = $this->options;
// set default exclusions.
$exclude_lazyload_array = array( 'skip-lazy', 'data-no-lazy', 'notlazy', 'data-src', 'data-srcset', 'data:image/', 'data-lazyload', 'rev-slidebg', 'loading="eager"' );
// add from setting.
if ( array_key_exists( 'autoptimize_imgopt_text_field_5', $options ) ) {
$exclude_lazyload_option = $options['autoptimize_imgopt_text_field_5'];
if ( ! empty( $exclude_lazyload_option ) ) {
$exclude_lazyload_array = array_merge( $exclude_lazyload_array, array_filter( array_map( 'trim', explode( ',', $options['autoptimize_imgopt_text_field_5'] ) ) ) );
}
}
// and filter for developer-initiated changes.
$exclude_lazyload_array = apply_filters( 'autoptimize_filter_imgopt_lazyload_exclude_array', $exclude_lazyload_array );
}
return $exclude_lazyload_array;
}
public function inject_classes_in_tag( $tag, $target_class ) {
if ( strpos( $tag, 'class=' ) !== false ) {
$tag = preg_replace( '/(\sclass\s?=\s?("|\'))/', '$1' . $target_class, $tag );
} else {
$tag = preg_replace( '/(<[a-zA-Z]*)\s/', '$1 class="' . trim( $target_class ) . '" ', $tag );
}
return $tag;
}
public function get_default_lazyload_placeholder( $imgopt_w, $imgopt_h ) {
return 'data:image/svg+xml,%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20viewBox=%220%200%20' . $imgopt_w . '%20' . $imgopt_h . '%22%3E%3C/svg%3E';
}
public function should_ngimg() {
static $ngimg_return = null;
if ( is_null( $ngimg_return ) ) {
// nextgen img only works if imgopt is active.
if ( ! empty( $this->options['autoptimize_imgopt_checkbox_field_4'] ) && $this->imgopt_active() ) {
$ngimg_return = true;
} else {
$ngimg_return = false;
}
}
return $ngimg_return;
}
public function process_picture_tag( $in, $imgopt = false, $lazy = false ) {
// check if "<picture" is present and if filter allows us to process <picture>.
if ( strpos( $in, '<picture' ) === false || apply_filters( 'autoptimize_filter_imgopt_dopicture', true ) === false ) {
return $in;
}
$_exclusions = $this->get_lazyload_exclusions();
$to_replace_pict = array();
// extract and process each picture-node.
preg_match_all( '#<picture.*</picture>#Usmi', $in, $_pictures, PREG_SET_ORDER );
foreach ( $_pictures as $_picture ) {
$_picture = $this->maybe_fix_missing_quotes( $_picture );
if ( strpos( $_picture[0], '<source ' ) !== false && preg_match_all( '#<source .*srcset=(?:"|\')(?!data)(.*)(?:"|\').*>#Usmi', $_picture[0], $_sources, PREG_SET_ORDER ) !== false ) {
foreach ( $_sources as $_source ) {
$_picture_replacement = $_source[0];
// should we optimize the image?
if ( $imgopt && $this->can_optimize_image( $_source[1], $_picture[0] ) ) {
$_picture_replacement = str_replace( $_source[1], $this->build_imgopt_url( $_source[1] ), $_picture_replacement );
}
// should we lazy-load?
if ( $lazy && $this->should_lazyload() && str_ireplace( $_exclusions, '', $_picture_replacement ) === $_picture_replacement ) {
$_picture_replacement = str_replace( ' srcset=', ' data-srcset=', $_picture_replacement );
}
$to_replace_pict[ $_source[0] ] = $_picture_replacement;
}
}
}
// and return the fully procesed $in.
$out = str_replace( array_keys( $to_replace_pict ), array_values( $to_replace_pict ), $in );
return $out;
}
public function process_bgimage( $in ) {
if ( strpos( $in, 'background-image:' ) !== false && apply_filters( 'autoptimize_filter_imgopt_lazyload_backgroundimages', true ) ) {
$out = preg_replace_callback(
'/(<(?:article|aside|body|div|footer|header|p|section|span|table)[^>]*)\sstyle=(?:"|\')[^<>]*?background-image:\s?url\((?:"|\')?([^"\')]*)(?:"|\')?\)[^>]*/',
array( $this, 'lazyload_bgimg_callback' ),
$in
);
return $out;
}
return $in;
}
public function lazyload_bgimg_callback( $matches ) {
if ( str_ireplace( $this->get_lazyload_exclusions(), '', $matches[0] ) === $matches[0] ) {
// get placeholder & lazyload class strings.
$placeholder = apply_filters( 'autoptimize_filter_imgopt_lazyload_placeholder', $this->get_default_lazyload_placeholder( 500, 300 ) );
$lazyload_class = apply_filters( 'autoptimize_filter_imgopt_lazyload_class', 'lazyload' );
// remove quotes from url() to be able to replace in next step.
$out = str_replace( array( "url('" . $matches[2] . "')", 'url("' . $matches[2] . '")' ), 'url(' . $matches[2] . ')', $matches[0] );
// replace background-image URL with SVG placeholder.
$out = str_replace( 'url(' . $matches[2], 'url(' . $placeholder, $out );
// sanitize bgimg src for quote sillyness.
$bgimg_src = $this->fix_silly_bgimg_quotes( $matches[2] );
// add data-bg attribute with real background-image URL for lazyload to pick up.
$out = str_replace( $matches[1], $matches[1] . ' data-bg="' . $bgimg_src . '"', $out );
// and finally add lazyload class to tag.
$out = $this->inject_classes_in_tag( $out, "$lazyload_class " );
return $out;
}
return $matches[0];
}
public function fix_silly_bgimg_quotes( $tag_in ) {
// some themes/ pagebuilders wrap backgroundimages in HTML-encoded quotes (or linebreaks) which breaks imgopt/ lazyloading, this removes them.
return trim( str_replace( array( "\r\n", '"', '"', ''', ''' ), '', $tag_in ) );
}
public function maybe_fix_missing_quotes( $tag_in ) {
// W3TC's Minify_HTML class removes quotes around attribute value, this re-adds them for the class and width/height attributes so we can lazyload properly.
if ( file_exists( WP_PLUGIN_DIR . '/w3-total-cache/w3-total-cache.php' ) && class_exists( 'Minify_HTML' ) && apply_filters( 'autoptimize_filter_imgopt_fixquotes', true ) ) {
$tag_out = preg_replace( '/class\s?=([^("|\')]*)(\s|>)/U', 'class=\'$1\'$2', $tag_in );
$tag_out = preg_replace( '/\s(width|height)=(?:"|\')?([^\s"\'>]*)(?:"|\')?/', ' $1=\'$2\'', $tag_out );
return $tag_out;
} else {
return $tag_in;
}
}
/**
* Admin page logic and related functions below.
*/
public function imgopt_admin_menu()
{
// no acces if multisite and not network admin and no site config allowed.
if ( autoptimizeConfig::should_show_menu_tabs() ) {
add_submenu_page(
'',
'autoptimize_imgopt',
'autoptimize_imgopt',
'manage_options',
'autoptimize_imgopt',
array( $this, 'imgopt_options_page' )
);
}
register_setting( 'autoptimize_imgopt_settings', 'autoptimize_imgopt_settings' );
}
public function add_imgopt_tab( $in )
{
if ( autoptimizeConfig::should_show_menu_tabs() ) {
$in = array_merge( $in, array( 'autoptimize_imgopt' => __( 'Images', 'autoptimize' ) ) );
}
return $in;
}
public function imgopt_options_page()
{
// Check querystring for "refreshCacheChecker" and call cachechecker if so.
if ( array_key_exists( 'refreshImgProvStats', $_GET ) && 1 == $_GET['refreshImgProvStats'] ) {
$this->query_img_provider_stats( true );
}
$options = $this->fetch_options();
$sp_url_suffix = $this->get_service_url_suffix();
?>
<style>
#ao_settings_form {background: white;border: 1px solid #ccc;padding: 1px 15px;margin: 15px 10px 10px 0;}
#ao_settings_form .form-table th {font-weight: normal;}
#autoptimize_imgopt_descr{font-size: 120%;}
</style>
<script>document.title = "Autoptimize: <?php _e( 'Images', 'autoptimize' ); ?> " + document.title;</script>
<div class="wrap">
<h1><?php apply_filters( 'autoptimize_filter_settings_is_pro', false ) ? _e( 'Autoptimize Pro Settings', 'autoptimize' ) : _e( 'Autoptimize Settings', 'autoptimize' ); ?></h1>
<?php echo autoptimizeConfig::ao_admin_tabs(); ?>
<?php if ( 'down' === $options['availabilities']['extra_imgopt']['status'] ) { ?>
<div class="notice-warning notice"><p>
<?php
// translators: "Autoptimize support forum" will appear in a "a href".
echo sprintf( __( 'The image optimization service is currently down, image optimization will be skipped until further notice. Check the %1$sAutoptimize support forum%2$s for more info.', 'autoptimize' ), '<a href="https://wordpress.org/support/plugin/autoptimize/" target="_blank">', '</a>' );
?>
</p></div>
<?php } ?>
<?php if ( 'launch' === $options['availabilities']['extra_imgopt']['status'] && ! autoptimizeImages::instance()->launch_ok() ) { ?>
<div class="notice-warning notice"><p>
<?php _e( 'The image optimization service is launching, but not yet available for this domain, it should become available in the next couple of days.', 'autoptimize' ); ?>
</p></div>
<?php } ?>
<?php if ( class_exists( 'Jetpack' ) && method_exists( 'Jetpack', 'get_active_modules' ) && in_array( 'photon', Jetpack::get_active_modules() ) ) { ?>
<div class="notice-warning notice"><p>
<?php
// translators: "disable Jetpack's site accelerator for images" will appear in a "a href" linking to the jetpack settings page.
echo sprintf( __( 'Please %1$sdisable Jetpack\'s site accelerator for images%2$s to be able to use Autoptomize\'s advanced image optimization features below.', 'autoptimize' ), '<a href="admin.php?page=jetpack#/settings">', '</a>' );
?>
</p></div>
<?php } ?>
<form id='ao_settings_form' action='<?php echo admin_url( 'options.php' ); ?>' method='post'>
<?php settings_fields( 'autoptimize_imgopt_settings' ); ?>
<h2><?php _e( 'Image optimization', 'autoptimize' ); ?></h2>
<span id='autoptimize_imgopt_descr'><?php _e( 'Make your site significantly faster by just ticking a couple of checkboxes to optimize and lazy load your images, WebP and AVIF support included!', 'autoptimize' ); ?></span>
<table class="form-table">
<tr>
<th scope="row"><?php _e( 'Optimize Images', 'autoptimize' ); ?></th>
<td>
<label><input id='autoptimize_imgopt_checkbox' type='checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_1]' <?php if ( ! empty( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' === $options['autoptimize_imgopt_checkbox_field_1'] ) { echo 'checked="checked"'; } ?> value='1'><?php _e( 'Optimize images on the fly and serve them from Shortpixel\'s global CDN.', 'autoptimize' ); ?></label>
<?php
// show shortpixel status.
$_notice = autoptimizeImages::instance()->get_imgopt_status_notice();
if ( $_notice ) {
switch ( $_notice['status'] ) {
case 2:
$_notice_color = 'green';
break;
case 1:
$_notice_color = 'orange';
break;
case -1:
case -2:
case -3:
$_notice_color = 'red';
break;
default:
$_notice_color = 'green';
}
echo apply_filters( 'autoptimize_filter_imgopt_settings_status', '<p><strong><span style="color:' . $_notice_color . ';">' . __( 'Shortpixel status: ', 'autoptimize' ) . '</span></strong>' . $_notice['notice'] . '</p>' );
} else {
// translators: link points to shortpixel.
$upsell_msg_1 = '<p>' . sprintf( __( 'Get more Google love by speeding up your website. Start serving on-the-fly optimized images (also in the "next-gen" <strong>WebP</strong> and <strong>AVIF</strong> image formats) by %1$sShortPixel%2$s. No additional image optimization plugins are needed: your images are optimized, cached and served from %3$sShortPixel\'s global CDN%2$s.', 'autoptimize' ), '<a href="https://shortpixel.com/aospai' . $sp_url_suffix . '" target="_blank">', '</a>', '<a href="https://help.shortpixel.com/article/62-where-does-the-cdn-has-pops" target="_blank">' );
if ( 'launch' === $options['availabilities']['extra_imgopt']['status'] ) {
$upsell_msg_2 = __( 'For a limited time only, this service is offered free for all Autoptimize users, <b>don\'t miss the chance to test it</b> and see how much it could improve your site\'s speed.', 'autoptimize' );
} else {
// translators: link points to shortpixel.
$upsell_msg_2 = sprintf( __( '%1$sSign-up now%2$s to receive x2 more CDN traffic or image optimization credits for free! This offer also applies to any future plan that you\'ll choose to purchase.', 'autoptimize' ), '<a href="https://shortpixel.com/aospai' . $sp_url_suffix . '" target="_blank">', '</a>' );
}
echo apply_filters( 'autoptimize_imgopt_imgopt_settings_copy', $upsell_msg_1 . ' ' . $upsell_msg_2 . '</p>' );
}
// translators: link points to shortpixel FAQ.
$faqcopy = sprintf( __( '<strong>Questions</strong>? Have a look at the %1$sAutoptimize + ShortPixel FAQ%2$s!', 'autoptimize' ), '<strong><a href="https://help.shortpixel.com/category/405-autoptimize" target="_blank">', '</strong></a>' );
$faqcopy = $faqcopy . ' ' . __( 'Only works for websites and images that are publicly available.', 'autoptimize' );
// translators: links points to shortpixel TOS & Privacy Policy.
$toscopy = sprintf( __( 'Usage of this feature is subject to Shortpixel\'s %1$sTerms of Use%2$s and %3$sPrivacy policy%4$s.', 'autoptimize' ), '<a href="https://shortpixel.com/tos' . $sp_url_suffix . '" target="_blank">', '</a>', '<a href="https://shortpixel.com/pp' . $sp_url_suffix . '" target="_blank">', '</a>' );
echo apply_filters( 'autoptimize_imgopt_imgopt_settings_tos', '<p>' . $faqcopy . ' ' . $toscopy . '</p>' );
?>
</td>
</tr>
<tr id='autoptimize_imgopt_optimization_exclusions' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'] ) ) { echo 'class="hidden"'; } ?>>
<th scope="row"><?php _e( 'Optimization exclusions', 'autoptimize' ); ?></th>
<td>
<label><input type='text' style='width:80%' id='autoptimize_imgopt_optimization_exclusions' name='autoptimize_imgopt_settings[autoptimize_imgopt_text_field_6]' value='<?php if ( ! empty( $options['autoptimize_imgopt_text_field_6'] ) ) { echo esc_attr( $options['autoptimize_imgopt_text_field_6'] ); } ?>'><br /><?php _e( 'Comma-separated list of image classes or filenames that should not be optimized.', 'autoptimize' ); ?></label>
</td>
</tr>
<tr id='autoptimize_imgopt_quality' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'] ) ) { echo 'class="hidden"'; } ?>>
<th scope="row"><?php _e( 'Image Optimization quality', 'autoptimize' ); ?></th>
<td>
<label>
<select name='autoptimize_imgopt_settings[autoptimize_imgopt_select_field_2]'>
<?php
$_imgopt_array = autoptimizeImages::instance()->get_img_quality_array();
$_imgopt_val = autoptimizeImages::instance()->get_img_quality_setting();
foreach ( $_imgopt_array as $key => $value ) {
echo '<option value="' . $key . '"';
if ( $_imgopt_val == $key ) {
echo ' selected';
}
echo '>' . ucfirst( $value ) . '</option>';
}
echo "\n";
?>
</select>
</label>
<p>
<?php
// translators: link points to shortpixel image test page.
echo apply_filters( 'autoptimize_imgopt_imgopt_quality_copy', sprintf( __( 'You can %1$stest compression levels here%2$s.', 'autoptimize' ), '<a href="https://shortpixel.com/oic' . $sp_url_suffix . '" target="_blank">', '</a>' ) );
?>
</p>
</td>
</tr>
<tr id='autoptimize_imgopt_ngimg' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_1', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_1'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_1'] ) ) { echo 'class="hidden"'; } ?>>
<th scope="row"><?php _e( 'Load AVIF in supported browsers?', 'autoptimize' ); ?></th>
<td>
<label><input type='checkbox' id='autoptimize_imgopt_ngimg_checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_4]' <?php if ( ! empty( $options['autoptimize_imgopt_checkbox_field_4'] ) && '1' === $options['autoptimize_imgopt_checkbox_field_4'] ) { echo 'checked="checked"'; } ?> value='1'><?php _e( 'Automatically serve AVIF image format to any browser that supports it.', 'autoptimize' ); ?></label>
</td>
</tr>
<tr>
<th scope="row"><?php _e( 'Lazy-load images?', 'autoptimize' ); ?></th>
<td>
<label><input type='checkbox' id='autoptimize_imgopt_lazyload_checkbox' name='autoptimize_imgopt_settings[autoptimize_imgopt_checkbox_field_3]' <?php if ( ! empty( $options['autoptimize_imgopt_checkbox_field_3'] ) && '1' === $options['autoptimize_imgopt_checkbox_field_3'] ) { echo 'checked="checked"'; } ?> value='1'><?php _e( 'Image lazy-loading will delay the loading of non-visible images to allow the browser to optimally load all resources for the "above the fold"-page first.', 'autoptimize' ); ?></label>
</td>
</tr>
<tr id='autoptimize_imgopt_lazyload_exclusions' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_3', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_3'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_3'] ) ) { echo 'class="autoptimize_lazyload_child hidden"'; } else { echo 'class="autoptimize_lazyload_child"'; } ?>>
<th scope="row"><?php _e( 'Lazy-load exclusions', 'autoptimize' ); ?></th>
<td>
<label><input type='text' style='width:80%' id='autoptimize_imgopt_lazyload_exclusions_text' name='autoptimize_imgopt_settings[autoptimize_imgopt_text_field_5]' value='<?php if ( ! empty( $options['autoptimize_imgopt_text_field_5'] ) ) { echo esc_attr( $options['autoptimize_imgopt_text_field_5'] ); } ?>'><br /><?php _e( 'Comma-separated list of to be excluded image classes or filenames.', 'autoptimize' ); ?></label>
</td>
</tr>
<tr id='autoptimize_imgopt_lazyload_from_nth_image' <?php if ( ! array_key_exists( 'autoptimize_imgopt_checkbox_field_3', $options ) || ( isset( $options['autoptimize_imgopt_checkbox_field_3'] ) && '1' !== $options['autoptimize_imgopt_checkbox_field_3'] ) ) { echo 'class="autoptimize_lazyload_child hidden"'; } else { echo 'class="autoptimize_lazyload_child"'; } ?>>
<th scope="row"><?php _e( 'Lazy-load from nth image', 'autoptimize' ); ?></th>
<td>
<label><input type='number' min='0' max='50' style='width:80%' id='autoptimize_imgopt_lazyload_from_nth_image_number' name='autoptimize_imgopt_settings[autoptimize_imgopt_number_field_7]' value='<?php if ( ! empty( $options['autoptimize_imgopt_number_field_7'] ) ) { echo esc_attr( $options['autoptimize_imgopt_number_field_7'] ); } else { echo '1'; } ?>'><br /><?php _e( 'Don\'t lazyload the first X images, \'1\' lazyloads all.', 'autoptimize' ); ?></label>
</td>
</tr>
</table>
<p class="submit"><input type="submit" name="submit" id="submit" class="button button-primary" value="<?php _e( 'Save Changes', 'autoptimize' ); ?>" /></p>
</form>
<script>
jQuery(document).ready(function() {
jQuery("#autoptimize_imgopt_checkbox").change(function() {
if (this.checked) {
jQuery("#autoptimize_imgopt_quality").show("slow");
jQuery("#autoptimize_imgopt_ngimg").show("slow");
jQuery("#autoptimize_imgopt_optimization_exclusions").show("slow");
} else {
jQuery("#autoptimize_imgopt_quality").hide("slow");
jQuery("#autoptimize_imgopt_ngimg").hide("slow");
jQuery("#autoptimize_imgopt_optimization_exclusions").hide("slow");
}
});
jQuery("#autoptimize_imgopt_lazyload_checkbox").change(function() {
if (this.checked) {
jQuery(".autoptimize_lazyload_child").show("slow");
} else {
jQuery(".autoptimize_lazyload_child").hide("slow");
}
});
});
</script>
<?php
}
/**
* Ïmg opt status as used on dashboard.
*/
public function get_imgopt_status_notice() {
if ( $this->imgopt_active() ) {
$_imgopt_notice = '';
$_stat = autoptimizeOptionWrapper::get_option( 'autoptimize_imgopt_provider_stat', '' );
$_site_host = AUTOPTIMIZE_SITE_DOMAIN;
$_imgopt_upsell = 'https://shortpixel.com/aospai/af/SPZURYE109483/' . $_site_host;
$_imgopt_assoc = 'https://shortpixel.helpscoutdocs.com/article/94-how-to-associate-a-domain-to-my-account';
$_imgopt_unreach = 'https://shortpixel.helpscoutdocs.com/article/148-why-are-my-images-redirected-from-cdn-shortpixel-ai';
if ( is_array( $_stat ) ) {
if ( 1 == $_stat['Status'] ) {
// translators: "add more credits" will appear in a "a href".
$_imgopt_notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota is almost used, make sure you %1$sadd more credits%2$s to avoid slowing down your website.', 'autoptimize' ), '<a href="' . $_imgopt_upsell . '" target="_blank">', '</a>' );
} elseif ( -1 == $_stat['Status'] || -2 == $_stat['Status'] ) {
// translators: "add more credits" will appear in a "a href".
$_imgopt_notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota was used, %1$sadd more credits%2$s to keep fast serving optimized images on your site', 'autoptimize' ), '<a href="' . $_imgopt_upsell . '" target="_blank">', '</a>' );
// translators: "associate your domain" will appear in a "a href".
$_imgopt_notice = $_imgopt_notice . ' ' . sprintf( __( 'If you have enough CDN quota remaining, then you may need to %1$sassociate your domain%2$s to your Shortpixel account.', 'autoptimize' ), '<a rel="noopener noreferrer" href="' . $_imgopt_assoc . '" target="_blank">', '</a>' );
} elseif ( -3 == $_stat['Status'] ) {
// translators: "check the documentation here" will appear in a "a href".
$_imgopt_notice = sprintf( __( 'It seems ShortPixel image optimization is not able to fetch images from your site, %1$scheck the documentation here%2$s for more information', 'autoptimize' ), '<a href="' . $_imgopt_unreach . '" target="_blank">', '</a>' );
} else {
$_imgopt_upsell = 'https://shortpixel.com/g/af/SPZURYE109483';
// translators: "log in to check your account" will appear in a "a href".
$_imgopt_notice = sprintf( __( 'Your ShortPixel image optimization and CDN quota are in good shape, %1$slog in to check your account%2$s.', 'autoptimize' ), '<a href="' . $_imgopt_upsell . '" target="_blank">', '</a>' );
}
// add info on freshness + refresh link if status is not 2 (good shape).
if ( 2 != $_stat['Status'] ) {
$_imgopt_stats_refresh_url = add_query_arg( array(
'page' => 'autoptimize_imgopt',
'refreshImgProvStats' => '1',
), admin_url( 'options-general.php' ) );
if ( $_stat && array_key_exists( 'timestamp', $_stat ) && ! empty( $_stat['timestamp'] ) ) {
$_imgopt_stats_last_run = __( 'based on status at ', 'autoptimize' ) . date_i18n( autoptimizeOptionWrapper::get_option( 'time_format' ), $_stat['timestamp'] );
} else {
$_imgopt_stats_last_run = __( 'based on previously fetched data', 'autoptimize' );
}
$_imgopt_notice .= ' (' . $_imgopt_stats_last_run . ', ';
// translators: "here to refresh" links to the Autoptimize Extra page and forces a refresh of the img opt stats.
$_imgopt_notice .= sprintf( __( 'you can click %1$shere to refresh your quota status%2$s', 'autoptimize' ), '<a href="' . $_imgopt_stats_refresh_url . '">', '</a>).' );
}
// and make the full notice filterable.
$_imgopt_notice = apply_filters( 'autoptimize_filter_imgopt_notice', $_imgopt_notice );
return array(
'status' => $_stat['Status'],
'notice' => $_imgopt_notice,
);
}
}
return false;
}
public static function get_imgopt_status_notice_wrapper() {
// needed for notice being shown in autoptimizeCacheChecker.php.
$self = new self();
return $self->get_imgopt_status_notice();
}
/**
* Get img provider stats (used to display notice).
*/
public function query_img_provider_stats( $_refresh = false ) {
if ( ! empty( $this->options['autoptimize_imgopt_checkbox_field_1'] ) ) {
$url = '';
$stat_dom = 'https://no-cdn.shortpixel.ai/';
$endpoint = $stat_dom . 'read-domain/';
$domain = AUTOPTIMIZE_SITE_DOMAIN;
// make sure parse_url result makes sense, keeping $url empty if not.
if ( $domain && ! empty( $domain ) ) {
$url = $endpoint . $domain;
if ( true === $_refresh ) {
$url = $url . '/refresh';
}
}
$url = apply_filters(
'autoptimize_filter_imgopt_stat_url',
$url
);
// only do the remote call if $url is not empty to make sure no parse_url
// weirdness results in useless calls.
if ( ! empty( $url ) ) {
$response = wp_remote_get( $url );
if ( ! is_wp_error( $response ) ) {
if ( '200' == wp_remote_retrieve_response_code( $response ) ) {
$stats = json_decode( wp_remote_retrieve_body( $response ), true );
autoptimizeOptionWrapper::update_option( 'autoptimize_imgopt_provider_stat', $stats );
}
}
}
}
}
public static function get_img_provider_stats()
{
// wrapper around query_img_provider_stats() so we can get to $this->options from cronjob() in autoptimizeCacheChecker.
$self = new self();
return $self->query_img_provider_stats();
}
/**
* Determines and returns the service launch status.
*
* @return bool
*/
public function launch_ok()
{
static $launch_status = null;
if ( null === $launch_status ) {
$avail_imgopt = '';
if ( is_array( $this->options ) && array_key_exists( 'availabilities', $this->options ) && is_array( $this->options['availabilities'] ) && array_key_exists( 'extra_imgopt', $this->options['availabilities'] ) ) {
$avail_imgopt = $this->options['availabilities']['extra_imgopt'];
}
$magic_number = intval( substr( md5( parse_url( AUTOPTIMIZE_WP_SITE_URL, PHP_URL_HOST ) ), 0, 3 ), 16 );
$has_launched = autoptimizeOptionWrapper::get_option( 'autoptimize_imgopt_launched', '' );
$launch_status = false;
if ( $has_launched || ( is_array( $avail_imgopt ) && array_key_exists( 'launch-threshold', $avail_imgopt ) && $magic_number < $avail_imgopt['launch-threshold'] ) ) {
$launch_status = true;
if ( ! $has_launched ) {
autoptimizeOptionWrapper::update_option( 'autoptimize_imgopt_launched', 'on' );
}
}
}
return $launch_status;
}
public static function launch_ok_wrapper() {
// needed for "plug" notice in autoptimizeMain.php.
$self = new self();
return $self->launch_ok();
}
public function get_imgopt_provider_userstatus() {
static $_provider_userstatus = null;
if ( is_null( $_provider_userstatus ) ) {
$_stat = autoptimizeOptionWrapper::get_option( 'autoptimize_imgopt_provider_stat', '' );
if ( is_array( $_stat ) ) {
if ( array_key_exists( 'Status', $_stat ) ) {
$_provider_userstatus['Status'] = $_stat['Status'];
} else {
// if no stats then we assume all is well.
$_provider_userstatus['Status'] = 2;
}
if ( array_key_exists( 'timestamp', $_stat ) ) {
$_provider_userstatus['timestamp'] = $_stat['timestamp'];
} else {
// if no timestamp then we return "".
$_provider_userstatus['timestamp'] = '';
}
} else {
// no provider_stat yet, assume/ return all OK.
$_provider_userstatus['Status'] = 2;
$_provider_userstatus['timestamp'] = '';
}
}
return $_provider_userstatus;
}
}
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