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<?php |
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/** |
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* GZIP module. |
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* |
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* Owns the gzip_enabled setting. On flip → writes / removes Apache / |
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* LiteSpeed `.htaccess` rules via the static XSpeed\Gzip helper. On |
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* nginx (or any server xSpeed can't auto-configure), the panel shows |
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* the manual snippet via ui_notices(). |
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* |
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* Tier: Free. See SETTINGS.md for the contract this module satisfies. |
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* |
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* @package XSpeed |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace XSpeed\Modules\Gzip; |
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|
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defined( 'ABSPATH' ) || exit; |
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|
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use XSpeed\Deep_Link; |
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use XSpeed\Gzip as LegacyGzip; |
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use XSpeed\Module; |
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use XSpeed\Server; |
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use XSpeed\Settings_Manager; |
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|
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final class GzipModule extends Module { |
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|
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public const SLUG = 'gzip'; |
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public const TIER = self::TIER_FREE; |
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public const VERSION = '1.1.0'; |
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|
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public function ui_metadata(): array { |
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return array( |
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'label' => __( 'Compression', 'xspeed' ), |
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'tab_label' => __( 'GZIP', 'xspeed' ), // its own tab on the Compression page |
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'icon' => 'Layers', |
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'description' => __( 'Compresses pages and files so they download faster.', 'xspeed' ), |
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'group' => 'performance', |
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// Host panel merges GZIP (this module) + Brotli (Pro) into one |
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// page — they are one decision with a fallback chain, not two |
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// sidebar rows (FBS-83633). The panel renders this module's own |
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// schema form plus a Brotli Pro section. |
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'custom_panel' => 'CompressionPanel', |
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); |
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} |
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|
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public function settings_schema(): array { |
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return array( |
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'gzip_enabled' => array( |
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'type' => 'bool', |
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'default' => false, |
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'label' => __( 'Enable Gzip compression', 'xspeed' ), |
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// Server-conditional. The old copy said "On nginx the snippet |
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// below must be added to your server config" — unconditionally, |
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// and there is no snippet below: the Compression page is a tab |
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// strip plus this toggle, and NginxServerBlock only mounts under |
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// the Cache panel. So Apache/LiteSpeed users read dead text |
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// about a server they aren't on, and nginx users got a promise |
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// the page couldn't keep. The nginx half now lives in |
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// ui_notices(), which can link to where the snippet actually is. |
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'description' => self::gzip_description(), |
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), |
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); |
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} |
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|
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/** |
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* Copy for the GZIP toggle, matched to the server we're actually on. |
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* |
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* Schema descriptions have no server-conditional rendering, so the choice |
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* has to happen here rather than in the panel. |
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*/ |
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private static function gzip_description(): string { |
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if ( class_exists( '\\XSpeed\\Server' ) && Server::supports_htaccess() ) { |
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return __( 'Compresses pages and files before sending them. xSpeed adds the .htaccess rules for you on this server.', 'xspeed' ); |
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} |
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if ( class_exists( '\\XSpeed\\Server' ) && Server::NGINX === Server::type() ) { |
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return __( 'Compresses pages and files before sending them. On nginx you add the rules to your server config yourself. See the notice below.', 'xspeed' ); |
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} |
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return __( 'Compresses pages and files before sending them. On this server you add the rules to your server config yourself. See the notice below.', 'xspeed' ); |
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} |
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|
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/** |
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* 1.1.0: drain gzip_enabled from the legacy xspeed_options blob into |
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* this module's option. Idempotent — a re-run with the legacy key |
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* already gone is a no-op. |
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*/ |
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public function migrations(): array { |
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return array( |
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'1.1.0' => static function ( array $opts ): array { |
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$legacy = get_option( 'xspeed_options', array() ); |
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if ( ! is_array( $legacy ) || ! array_key_exists( 'gzip_enabled', $legacy ) ) { |
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return $opts; |
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} |
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$opts['gzip_enabled'] = (bool) $legacy['gzip_enabled']; |
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unset( $legacy['gzip_enabled'] ); |
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update_option( 'xspeed_options', $legacy ); |
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return $opts; |
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}, |
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); |
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} |
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|
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public function cli_commands(): array { |
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return array( |
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array( |
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'name' => 'xspeed gzip', |
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'callback' => array( $this, 'cli_handler' ), |
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'shortdesc' => 'Show GZIP status (server type, active, mode).', |
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'ai_hint' => 'Is text compression (GZIP/Brotli) actually working on this site? Answers "why are my HTML/CSS/JS transfers so large" and whether the server is compressing at all. Reports the detected server, whether compression is active, and how it is applied.', |
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'synopsis' => array(), |
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), |
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); |
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} |
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|
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/** |
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* Conditional notice published to the module's panel via |
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* Module::ui_notices(). When gzip is enabled and the server can't |
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* auto-configure (nginx / unknown / IIS), we surface a copy-able |
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* snippet so the user can wire it up. |
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*/ |
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public function ui_notices(): array { |
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$opts = Settings_Manager::get( self::SLUG ); |
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if ( empty( $opts['gzip_enabled'] ) ) { |
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return array(); |
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} |
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|
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// Probe the live response — works regardless of server type. If gzip |
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// is actually being served, nothing is wrong. Mirrors BrowserCache's |
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// probe_headers_present() pattern. |
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// |
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// Tri-state: true = proven serving, false = proven not serving, |
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// null = the loopback never reached the origin, which is not evidence |
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// of anything. Telling someone their server is misconfigured because |
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// *we* couldn't call it is the bug behind issue #18. (#18) |
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$serving = LegacyGzip::probe_active(); |
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|
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// nginx gets a notice EITHER WAY, because on nginx this notice is the |
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// only route from the Compression page to the snippet — the panel body |
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// is a tab strip plus one toggle, and NginxServerBlock mounts under |
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// the Cache panel alone. Suppressing it on a correctly-configured box |
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// left that user with no way to reach the directives at all (say, to |
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// re-paste them after an nginx upgrade). Working sites get a calm |
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// "here's where it lives"; broken ones get the warning. (#87) |
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// |
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// An unreachable probe (null) takes the calm wording too: we cannot |
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// prove gzip is missing, so the notice points at the snippet without |
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// claiming the server is misconfigured. Only a proven-false probe |
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// warns. (#18) |
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if ( Server::NGINX === Server::type() ) { |
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$proven_missing = ( false === $serving ); |
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return array( |
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array( |
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'tone' => $proven_missing ? 'warn' : 'info', |
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'title' => $proven_missing |
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? __( 'GZIP requires server config on nginx', 'xspeed' ) |
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: __( 'GZIP is being served by nginx', 'xspeed' ), |
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'body' => $proven_missing |
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? __( 'xSpeed can only auto-configure GZIP on Apache and LiteSpeed (via .htaccess). The directives are included in the unified server-block snippet on the Cache panel — copy + paste it once into your nginx vhost (or container nginx config) and reload nginx.', 'xspeed' ) |
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: __( 'Responses are compressed. xSpeed cannot configure nginx from WordPress, so these directives live in the unified server-block snippet on the Cache panel — that is where to re-copy them if your server config is ever rebuilt.', 'xspeed' ), |
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// Lands on the snippet itself and auto-expands it, rather |
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// than on the Cache page where it is one collapsed section |
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// among several. Same call BrowserCacheModule makes. |
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'action' => Deep_Link::action( |
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__( 'Go to the snippet', 'xspeed' ), |
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'cache', |
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'nginx_snippet' |
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), |
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), |
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); |
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} |
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|
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// Non-nginx: stay quiet unless the probe positively proved gzip is |
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// missing. `null` (unreachable) must not produce a notice. (#18) |
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if ( false !== $serving ) { |
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return array(); |
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} |
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// Probe says NOT active and gzip is enabled — surface the right |
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// notice per server topology. |
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if ( 'auto' === Server::gzip_mode() ) { |
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// Apache/LiteSpeed but probe failed — .htaccess write must |
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// have been blocked, or another plugin is overriding. Tell |
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// the user something is wrong, no snippet (we can't fix it |
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// without their server access). |
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return array( |
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array( |
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'tone' => 'warn', |
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'title' => __( 'GZIP enabled but not active on the server', 'xspeed' ), |
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'body' => __( 'xSpeed wrote the .htaccess rules but the response still isn\'t gzipped. Your server may have AllowOverride disabled, another caching plugin overriding, or mod_deflate missing. Ask your host to enable GZIP on Apache.', 'xspeed' ), |
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), |
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); |
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} |
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// IIS / unknown server fallback — keep the legacy "paste this" |
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// notice until a non-nginx unified-snippet surface ships. (nginx |
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// returned above, whether or not gzip is currently being served.) |
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return array( |
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array( |
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'tone' => 'warn', |
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'title' => __( 'GZIP requires server config on this server', 'xspeed' ), |
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'body' => __( 'xSpeed can only auto-configure GZIP on Apache and LiteSpeed (via .htaccess). Paste the snippet below into your server config and reload.', 'xspeed' ), |
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'snippet' => LegacyGzip::nginx_snippet(), |
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), |
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); |
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} |
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|
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/** |
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* Module booting: seed per-module option from legacy if needed, |
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* then register the change hook that flips Apache / LiteSpeed |
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* .htaccess rules whenever gzip_enabled is toggled. This handler |
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* fires on writes to xspeed_module_gzip (not the legacy blob). |
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*/ |
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public function boot(): void { |
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$this->seed_from_legacy_if_needed(); |
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add_action( 'update_option_xspeed_module_gzip', array( __CLASS__, 'on_settings_change' ), 10, 2 ); |
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add_action( 'add_option_xspeed_module_gzip', array( __CLASS__, 'on_settings_added' ), 10, 2 ); |
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} |
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|
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/** |
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* Detect the gzip_enabled flip on write and apply / remove the |
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* .htaccess rules. Idempotent — re-running with the same state is a |
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* no-op inside LegacyGzip::apply(). |
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*/ |
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public static function on_settings_change( $old, $new ): void { |
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$old_gzip = is_array( $old ) ? ! empty( $old['gzip_enabled'] ) : false; |
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$new_gzip = is_array( $new ) ? ! empty( $new['gzip_enabled'] ) : false; |
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if ( $old_gzip !== $new_gzip ) { |
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LegacyGzip::apply( $new_gzip ); |
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// Settings just changed — current "probe says active" answer |
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// is stale. Drop the transient so the next dashboard load |
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// re-checks the live response. |
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delete_transient( 'xspeed_gzip_active' ); |
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} |
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} |
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|
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/** |
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* The very first write (option doesn't exist yet) hits add_option |
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* instead of update_option. Treat it as old=false → new=current. |
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*/ |
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public static function on_settings_added( $name, $value ): void { |
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$enabled = is_array( $value ) ? ! empty( $value['gzip_enabled'] ) : false; |
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if ( $enabled ) { |
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LegacyGzip::apply( true ); |
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} |
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} |
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|
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public function activate(): void { |
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$this->seed_from_legacy_if_needed(); |
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} |
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|
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private function seed_from_legacy_if_needed(): void { |
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if ( null !== get_option( 'xspeed_module_gzip', null ) ) { |
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return; |
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} |
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$legacy = get_option( 'xspeed_options', array() ); |
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if ( ! is_array( $legacy ) || ! array_key_exists( 'gzip_enabled', $legacy ) ) { |
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return; |
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} |
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update_option( |
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'xspeed_module_gzip', |
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array( |
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'_version' => self::VERSION, |
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'gzip_enabled' => (bool) $legacy['gzip_enabled'], |
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) |
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); |
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unset( $legacy['gzip_enabled'] ); |
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update_option( 'xspeed_options', $legacy ); |
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} |
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|
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public function cli_handler( array $args, array $assoc ): void { |
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$opts = Settings_Manager::get( self::SLUG ); |
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\WP_CLI::log( 'enabled ' . ( $opts['gzip_enabled'] ? 'true' : 'false' ) ); |
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\WP_CLI::log( 'server ' . Server::type() ); |
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\WP_CLI::log( 'mode ' . Server::gzip_mode() ); |
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$active = LegacyGzip::probe_active(); |
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\WP_CLI::log( 'active ' . ( null === $active ? 'unknown (loopback probe failed)' : ( $active ? 'true' : 'false' ) ) ); |
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\WP_CLI::log( 'nginx_snippet ' . LegacyGzip::nginx_snippet() ); |
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} |
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|
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/** |
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* GZIP directives for the unified nginx server-block snippet. Null |
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* when the module is disabled. |
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*/ |
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public function nginx_directives(): ?string { |
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$opts = Settings_Manager::get( self::SLUG ); |
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if ( empty( $opts['gzip_enabled'] ) ) { |
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return null; |
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} |
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$snippet = LegacyGzip::nginx_snippet(); |
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return is_string( $snippet ) && '' !== $snippet ? $snippet : null; |
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} |
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|
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/** |
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* Gzip stores its switch as `gzip_enabled`, not `enabled`. (#363) |
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*/ |
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public function is_active(): ?bool { |
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return $this->any_bool_flag_on(); |
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} |
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} |
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|
