305 lines
7.8 KiB
PHP
305 lines
7.8 KiB
PHP
<?php
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namespace W3TC;
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class Extension_Amp_Plugin {
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private $is_amp_endpoint = null;
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static public function wp_loaded() {
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add_action( 'w3tc_extension_load', array(
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'\W3TC\Extension_Amp_Plugin',
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'w3tc_extension_load'
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) );
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add_action( 'w3tc_extension_load_admin', array(
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'\W3TC\Extension_Amp_Plugin_Admin',
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'w3tc_extension_load_admin'
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) );
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}
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static public function w3tc_extension_load() {
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$o = new Extension_Amp_Plugin();
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add_filter( 'w3tc_minify_js_enable',
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array( $o, 'w3tc_minify_jscss_enable' ) );
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add_filter( 'w3tc_minify_css_enable',
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array( $o, 'w3tc_minify_jscss_enable' ) );
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add_filter( 'w3tc_lazyload_can_process',
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array( $o, 'w3tc_lazyload_can_process' ) );
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add_filter( 'w3tc_footer_comment',
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array( $o, 'w3tc_footer_comment' ) );
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add_filter( 'w3tc_newrelic_should_disable_auto_rum',
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array( $o, 'w3tc_newrelic_should_disable_auto_rum' ) );
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add_filter( 'pgcache_flush_post_queued_urls',
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array( $o, 'x_flush_post_queued_urls' ) );
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add_filter( 'varnish_flush_post_queued_urls',
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array( $o, 'x_flush_post_queued_urls' ) );
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add_filter( 'w3tc_pagecache_set',
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array( $o, 'w3tc_pagecache_set' ) );
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add_filter( 'w3tc_config_default_values',
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array( $o, 'w3tc_config_default_values' ) );
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// rules generation
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add_filter( 'w3tc_pagecache_rules_apache_accept_qs',
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array( $o, 'w3tc_pagecache_rules_x_accept_qs' ) );
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add_filter( 'w3tc_pagecache_rules_apache_accept_qs_rules',
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array( $o, 'w3tc_pagecache_rules_apache_accept_qs_rules' ), 10, 2 );
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add_filter( 'w3tc_pagecache_rules_apache_uri_prefix',
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array( $o, 'w3tc_pagecache_rules_apache_uri_prefix' ) );
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add_filter( 'w3tc_pagecache_rules_nginx_accept_qs',
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array( $o, 'w3tc_pagecache_rules_x_accept_qs' ) );
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add_filter( 'w3tc_pagecache_rules_nginx_accept_qs_rules',
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array( $o, 'w3tc_pagecache_rules_nginx_accept_qs_rules' ), 10, 2 );
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add_filter( 'w3tc_pagecache_rules_nginx_uri_prefix',
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array( $o, 'w3tc_pagecache_rules_nginx_uri_prefix' ) );
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}
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private function is_amp_endpoint() {
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// support for different plugins defining those own functions
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if ( is_null( $this->is_amp_endpoint ) ) {
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if ( function_exists( 'is_amp_endpoint' ) ) {
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$this->is_amp_endpoint = is_amp_endpoint();
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} elseif ( function_exists( 'ampforwp_is_amp_endpoint' ) ) {
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$this->is_amp_endpoint = ampforwp_is_amp_endpoint();
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} elseif ( function_exists( 'is_better_amp' ) ) {
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$this->is_amp_endpoint = is_better_amp();
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}
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}
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return is_null( $this->is_amp_endpoint ) ? false : $this->is_amp_endpoint;
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}
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public function w3tc_minify_jscss_enable( $enabled ) {
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if ( $this->is_amp_endpoint() ) {
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// amp has own rules for CSS and JS files, don't touch them by default
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return false;
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}
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return $enabled;
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}
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public function w3tc_newrelic_should_disable_auto_rum( $reject_reason ) {
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if ( $this->is_amp_endpoint() ) {
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return 'AMP endpoint';
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}
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return $reject_reason;
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}
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public function w3tc_lazyload_can_process( $can_process ) {
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if ( $this->is_amp_endpoint() ) {
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$can_process['enabled'] = false;
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$can_process['reason'] = 'AMP endpoint';
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}
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return $can_process;
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}
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public function x_flush_post_queued_urls( $queued_urls ) {
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$amp_urls = array();
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$c = Dispatcher::config();
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$url_postfix = $c->get_string( array( 'amp', 'url_postfix' ) );
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' ) {
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foreach ( $queued_urls as $url ) {
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$amp_urls[] = $url . '?' . $url_postfix;
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}
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} else {
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foreach ( $queued_urls as $url ) {
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$amp_urls[] = trailingslashit( $url ) . $url_postfix;
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}
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}
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$queued_urls = array_merge( $queued_urls, $amp_urls );
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return $queued_urls;
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}
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public function w3tc_footer_comment( $strings ) {
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if ( $this->is_amp_endpoint() ) {
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$strings[] = 'AMP page, minification is limited';
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}
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return $strings;
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}
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public function w3tc_pagecache_set( $data ) {
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if ( $this->is_amp_endpoint() ) {
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// workaround to prevent Link headers from parent page
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// to appear in amp page coming from it's .htaccess
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$c = Dispatcher::config();
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if ( $c->getf_boolean( 'minify.css.http2push' ) ||
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$c->getf_boolean( 'minify.js.http2push' ) ) {
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$data['headers'][] = array(
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'n' => 'Link', 'v' => '', 'files_match' => '\\.html[_a-z]*$' );
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$this->w3tc_pagecache_set_header_register_once();
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}
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}
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return $data;
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}
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private function w3tc_pagecache_set_header_register_once() {
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static $registered = false;
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if ( !$registered ) {
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add_filter( 'w3tc_pagecache_set_header',
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array( $this, 'w3tc_pagecache_set_header' ), 20, 2 );
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}
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}
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public function w3tc_pagecache_set_header( $header, $header_original ) {
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if ( $header_original['n'] == 'Link' && empty( $header_original['v'] ) ) {
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// forces removal of Link header for file_generic when its set by
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// parent .htaccess
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return $header_original;
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}
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return $header;
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}
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public function w3tc_config_default_values( $default_values ) {
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$default_values['amp'] = array(
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'url_type' => 'tag',
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'url_postfix' => 'amp'
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);
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return $default_values;
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}
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static public function pagecache_normalize_url_fragments( $url_fragments ) {
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$c = Dispatcher::config();
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' ) {
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if ( !empty( $url_fragments['querystring'] ) ) {
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$qs = $c->get_string( array( 'amp', 'url_postfix' ) );
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$url_qs = substr( $url_fragments['querystring'], 1 ); // cut off "?"
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$regexp = Util_Environment::preg_quote( str_replace( '+', ' ', $qs ) );
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if ( @preg_match( "~^(.*?&|)$regexp(=[^&]*)?(&.*|)$~i", $url_qs, $m ) ) {
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$url_qs = $m[1] . $m[3];
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$url_qs = preg_replace( '~[&]+~', '&', $url_qs );
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$url_qs = trim( $url_qs, '&' );
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$url_qs = empty( $url_qs ) ? '' : '?' . $url_qs;
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$url_fragments['querystring'] = $url_qs;
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$url_fragments['amp_extension'] = 1;
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}
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}
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}
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return $url_fragments;
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}
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static public function pagecache_page_key( $o ) {
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$c = Dispatcher::config();
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if ( isset( $o['url_fragments']['amp_extension'] ) ) {
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$o['key'][1] .= '_amp';
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}
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return $o;
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}
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public function w3tc_pagecache_rules_x_accept_qs( $query_strings ) {
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$c = Dispatcher::config();
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' ) {
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$query_strings[] = $c->get_string( array( 'amp', 'url_postfix' ) );
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}
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return $query_strings;
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}
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public function w3tc_pagecache_rules_apache_accept_qs_rules( $query_rules, $query ) {
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$c = Dispatcher::config();
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' &&
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$query == $c->get_string( array( 'amp', 'url_postfix' ) ) ) {
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$query_rules[1] = str_replace( '[E=', '[E=W3TC_AMP:_amp,E=', $query_rules[1] );
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}
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return $query_rules;
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}
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public function w3tc_pagecache_rules_apache_uri_prefix( $uri_prefix ) {
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$c = Dispatcher::config();
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' ) {
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$uri_prefix .= '%{ENV:W3TC_AMP}';
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}
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return $uri_prefix;
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}
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public function w3tc_pagecache_rules_nginx_accept_qs_rules( $query_rules, $query ) {
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$c = Dispatcher::config();
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' &&
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$query == $c->get_string( array( 'amp', 'url_postfix' ) ) ) {
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array_splice( $query_rules, 1, 0, ' set $w3tc_amp "_amp";' );
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array_unshift( $query_rules, 'set $w3tc_amp "";' );
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}
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return $query_rules;
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}
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public function w3tc_pagecache_rules_nginx_uri_prefix( $uri_prefix ) {
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$c = Dispatcher::config();
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if ( $c->get_string( array( 'amp', 'url_type' ) ) == 'querystring' ) {
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$uri_prefix .= '$w3tc_amp';
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}
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return $uri_prefix;
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}
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}
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w3tc_add_action( 'pagecache_normalize_url_fragments',
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array( '\W3TC\Extension_Amp_Plugin', 'pagecache_normalize_url_fragments' ) );
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w3tc_add_action( 'pagecache_page_key',
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array( '\W3TC\Extension_Amp_Plugin', 'pagecache_page_key' ) );
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w3tc_add_action( 'wp_loaded',
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array( '\W3TC\Extension_Amp_Plugin', 'wp_loaded' ) );
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