512 lines
21 KiB
PHP
512 lines
21 KiB
PHP
<?php
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namespace W3TC;
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/**
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* Rules generation for Nginx
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*/
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class BrowserCache_Environment_Nginx {
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private $c;
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public function __construct( $config ) {
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$this->c = $config;
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}
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public function get_required_rules( $mime_types ) {
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return array(
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array(
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'filename' => Util_Rule::get_nginx_rules_path(),
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'content' => $this->generate( $mime_types ),
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),
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);
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}
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/**
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* Returns cache rules
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*/
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public function generate( $mime_types, $cdnftp = false ) {
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$cssjs_types = $mime_types['cssjs'];
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$cssjs_types = array_unique( $cssjs_types );
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$html_types = $mime_types['html'];
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$other_types = $mime_types['other'];
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$other_compression_types = $mime_types['other_compression'];
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$rules = '';
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$rules .= W3TC_MARKER_BEGIN_BROWSERCACHE_CACHE . "\n";
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if ( $this->c->get_boolean( 'browsercache.rewrite' ) ) {
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$core = Dispatcher::component( 'BrowserCache_Core' );
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$extensions = $core->get_replace_extensions( $this->c );
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$exts = implode( '|', $extensions );
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$rules .= "set \$w3tcbc_rewrite_filename '';\n";
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$rules .= "set \$w3tcbc_rewrite_uri '';\n";
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$rules .= "if (\$uri ~ '^(?<w3tcbc_base>.+)\.(x[0-9]{5})" .
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"(?<w3tcbc_ext>\.($exts))$') {\n";
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$rules .= " set \$w3tcbc_rewrite_filename \$document_root\$w3tcbc_base\$w3tcbc_ext;\n";
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$rules .= " set \$w3tcbc_rewrite_uri \$w3tcbc_base\$w3tcbc_ext;\n";
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$rules .= "}\n";
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if ( Util_Environment::is_wpmu() &&
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!Util_Environment::is_wpmu_subdomain() ) {
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// WPMU subdir extra rewrite
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if ( defined( 'W3TC_HOME_URI' ) ) {
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$home_uri = W3TC_HOME_URI;
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} else {
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$primary_blog_id = get_network()->site_id;
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$home_uri = parse_url( get_home_url( $primary_blog_id ),
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PHP_URL_PATH );
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$home_uri = rtrim( $home_uri, '/' );
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}
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$rules .= "if (\$uri ~ '^$home_uri/[_0-9a-zA-Z-]+(?<w3tcbc_base>/wp-.+)\.(x[0-9]{5})(?<w3tcbc_ext>\.($exts))$') {\n";
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$rules .= " set \$w3tcbc_rewrite_filename \$document_root$home_uri\$w3tcbc_base\$w3tcbc_ext;\n";
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$rules .= " set \$w3tcbc_rewrite_uri $home_uri\$w3tcbc_base\$w3tcbc_ext;\n";
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$rules .= "}\n";
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}
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$rules .= "if (-f \$w3tcbc_rewrite_filename) {\n";
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$rules .= " rewrite .* \$w3tcbc_rewrite_uri;\n";
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$rules .= "}\n";
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}
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$cssjs_brotli = $this->c->get_boolean( 'browsercache.cssjs.brotli' );
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$html_brotli = $this->c->get_boolean( 'browsercache.html.brotli' );
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$other_brotli = $this->c->get_boolean( 'browsercache.other.brotli' );
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if ( $cssjs_brotli || $html_brotli || $other_brotli ) {
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$brotli_types = array();
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if ( $cssjs_brotli ) {
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$brotli_types = array_merge( $brotli_types, $cssjs_types );
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}
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if ( $html_brotli ) {
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$brotli_types = array_merge( $brotli_types, $html_types );
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}
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if ( $other_brotli ) {
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$brotli_types = array_merge( $brotli_types,
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$other_compression_types );
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}
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unset( $brotli_types['html|htm'] );
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// some nginx cant handle values longer than 47 chars
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unset( $brotli_types['odp'] );
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$rules .= "brotli on;\n";
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$rules .= 'brotli_types ' .
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implode( ' ', array_unique( $brotli_types ) ) . ";\n";
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}
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$cssjs_compression = $this->c->get_boolean( 'browsercache.cssjs.compression' );
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$html_compression = $this->c->get_boolean( 'browsercache.html.compression' );
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$other_compression = $this->c->get_boolean( 'browsercache.other.compression' );
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if ( $cssjs_compression || $html_compression || $other_compression ) {
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$compression_types = array();
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if ( $cssjs_compression ) {
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$compression_types = array_merge( $compression_types, $cssjs_types );
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}
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if ( $html_compression ) {
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$compression_types = array_merge( $compression_types, $html_types );
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}
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if ( $other_compression ) {
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$compression_types = array_merge( $compression_types,
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$other_compression_types );
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}
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unset( $compression_types['html|htm'] );
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// some nginx cant handle values longer than 47 chars
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unset( $compression_types['odp'] );
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$rules .= "gzip on;\n";
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$rules .= "gzip_types " .
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implode( ' ', array_unique( $compression_types ) ) . ";\n";
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}
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if ( $this->c->get_boolean( 'browsercache.no404wp' ) ) {
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$exceptions = $this->c->get_array( 'browsercache.no404wp.exceptions' );
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$impoloded = implode( '|', $exceptions );
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if ( !empty( $impoloded ) ) {
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$wp_uri = network_home_url( '', 'relative' );
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$wp_uri = rtrim( $wp_uri, '/' );
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$rules .= "location ~ (" . $impoloded . ") {\n";
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$rules .= ' try_files $uri $uri/ ' . $wp_uri .
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'/index.php?$args;' . "\n";
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$rules .= "}\n";
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}
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}
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$this->generate_section( $rules, $mime_types['cssjs'], 'cssjs' );
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$this->generate_section( $rules, $mime_types['html'], 'html' );
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$this->generate_section( $rules, $mime_types['other'], 'other' );
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$rules .= implode( "\n", $this->security_rules() ) . "\n";
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$rules .= W3TC_MARKER_END_BROWSERCACHE_CACHE . "\n";
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return $rules;
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}
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/**
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* Returns security header directives
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*/
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private function security_rules() {
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$rules = [];
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if ( $this->c->get_boolean( 'browsercache.hsts' ) ||
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$this->c->get_boolean( 'browsercache.security.xfo' ) ||
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$this->c->get_boolean( 'browsercache.security.xss' ) ||
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$this->c->get_boolean( 'browsercache.security.xcto' ) ||
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$this->c->get_boolean( 'browsercache.security.pkp' ) ||
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$this->c->get_boolean( 'browsercache.security.referrer.policy' ) ||
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$this->c->get_boolean( 'browsercache.security.csp' ) ||
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$this->c->get_boolean( 'browsercache.security.cspro' ) ||
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$this->c->get_boolean( 'browsercache.security.fp' )
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) {
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$lifetime = $this->c->get_integer( 'browsercache.other.lifetime' );
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if ( $this->c->get_boolean( 'browsercache.hsts' ) ) {
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$dir = $this->c->get_string( 'browsercache.security.hsts.directive' );
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$rules[] = "add_header Strict-Transport-Security \"max-age=$lifetime" . ( strpos( $dir,"inc" ) ? "; includeSubDomains" : "" ) . ( strpos( $dir, "pre" ) ? "; preload" : "" ) . "\";";
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}
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if ( $this->c->get_boolean( 'browsercache.security.xfo' ) ) {
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$dir = $this->c->get_string( 'browsercache.security.xfo.directive' );
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$url = trim( $this->c->get_string( 'browsercache.security.xfo.allow' ) );
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if ( empty( $url ) ) {
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$url = Util_Environment::home_url_maybe_https();
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}
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$rules[] = "add_header X-Frame-Options \"" . ( $dir == "same" ? "SAMEORIGIN" : ( $dir == "deny" ? "DENY" : "ALLOW-FROM $url" ) ) . "\";";
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}
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if ( $this->c->get_boolean( 'browsercache.security.xss' ) ) {
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$dir = $this->c->get_string( 'browsercache.security.xss.directive' );
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$rules[] = "add_header X-XSS-Protection \"" . ( $dir == "block" ? "1; mode=block" : $dir ) . "\";";
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}
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if ( $this->c->get_boolean( 'browsercache.security.xcto' ) ) {
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$rules[] = "add_header X-Content-Type-Options \"nosniff\";";
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}
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if ( $this->c->get_boolean( 'browsercache.security.pkp' ) ) {
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$pin = trim( $this->c->get_string( 'browsercache.security.pkp.pin' ) );
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$pinbak = trim( $this->c->get_string( 'browsercache.security.pkp.pin.backup' ) );
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$extra = $this->c->get_string( 'browsercache.security.pkp.extra' );
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$url = trim( $this->c->get_string( 'browsercache.security.pkp.report.url' ) );
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$rep_only = $this->c->get_string( 'browsercache.security.pkp.report.only' ) == '1' ? true : false;
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$rules[] = "add_header " . ( $rep_only ? "Public-Key-Pins-Report-Only" : "Public-Key-Pins" ) . " 'pin-sha256=\"$pin\"; pin-sha256=\"$pinbak\"; max-age=$lifetime" . ( strpos( $extra,"inc" ) ? "; includeSubDomains" : "" ) . ( !empty( $url ) ? "; report-uri=\"$url\"" : "" ) . "';";
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}
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if ( $this->c->get_boolean( 'browsercache.security.referrer.policy' ) ) {
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$dir = $this->c->get_string( 'browsercache.security.referrer.policy.directive' );
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$rules[] = "add_header Referrer-Policy \"" . ( $dir == "0" ? "" : $dir ) . "\";";
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}
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if ( $this->c->get_boolean( 'browsercache.security.csp' ) ) {
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$base = trim( $this->c->get_string( 'browsercache.security.csp.base' ) );
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$frame = trim( $this->c->get_string( 'browsercache.security.csp.frame' ) );
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$connect = trim( $this->c->get_string( 'browsercache.security.csp.connect' ) );
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$font = trim( $this->c->get_string( 'browsercache.security.csp.font' ) );
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$script = trim( $this->c->get_string( 'browsercache.security.csp.script' ) );
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$style = trim( $this->c->get_string( 'browsercache.security.csp.style' ) );
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$img = trim( $this->c->get_string( 'browsercache.security.csp.img' ) );
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$media = trim( $this->c->get_string( 'browsercache.security.csp.media' ) );
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$object = trim( $this->c->get_string( 'browsercache.security.csp.object' ) );
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$plugin = trim( $this->c->get_string( 'browsercache.security.csp.plugin' ) );
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$form = trim( $this->c->get_string( 'browsercache.security.csp.form' ) );
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$frame_ancestors = trim( $this->c->get_string( 'browsercache.security.csp.frame.ancestors' ) );
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$sandbox = trim( $this->c->get_string( 'browsercache.security.csp.sandbox' ) );
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$child = trim( $this->c->get_string( 'browsercache.security.csp.child' ) );
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$manifest = trim( $this->c->get_string( 'browsercache.security.csp.manifest' ) );
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$scriptelem = trim( $this->c->get_string( 'browsercache.security.csp.scriptelem' ) );
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$scriptattr = trim( $this->c->get_string( 'browsercache.security.csp.scriptattr' ) );
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$styleelem = trim( $this->c->get_string( 'browsercache.security.csp.styleelem' ) );
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$scriptelem = trim( $this->c->get_string( 'browsercache.security.csp.styleattr' ) );
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$worker = trim( $this->c->get_string( 'browsercache.security.csp.worker' ) );
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$default = trim( $this->c->get_string( 'browsercache.security.csp.default' ) );
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$dir = rtrim(
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( ! empty( $base ) ? "base-uri $base; " : '' ) .
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( ! empty( $frame ) ? "frame-src $frame; " : '' ) .
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( ! empty( $connect ) ? "connect-src $connect; " : '' ) .
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( ! empty( $font ) ? "font-src $font; " : '' ) .
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( ! empty( $script ) ? "script-src $script; " : '' ) .
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( ! empty( $style ) ? "style-src $style; " : '' ) .
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( ! empty( $img ) ? "img-src $img; " : '' ) .
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( ! empty( $media ) ? "media-src $media; " : '' ) .
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( ! empty( $object ) ? "object-src $object; " : '' ) .
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( ! empty( $plugin ) ? "plugin-types $plugin; " : '' ) .
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( ! empty( $form ) ? "form-action $form; " : '' ) .
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( ! empty( $frame_ancestors ) ? "frame-ancestors $frame_ancestors; " : '' ) .
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( ! empty( $sandbox ) ? "sandbox $sandbox; " : '' ) .
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( ! empty( $child ) ? "child-src $child; " : '' ) .
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( ! empty( $manifest ) ? "manifest-src $manifest; " : '' ) .
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( ! empty( $scriptelem ) ? "script-src-elem $scriptelem; " : '' ) .
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( ! empty( $scriptattr ) ? "script-src-attr $scriptattr; " : '' ) .
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( ! empty( $styleelem ) ? "style-src-elem $styleelem; " : '' ) .
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( ! empty( $styleattr ) ? "style-src-attr $styleattr; " : '' ) .
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( ! empty( $worker ) ? "worker-src $worker; " : '' ) .
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( ! empty( $default ) ? "default-src $default;" : '' ),
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'; '
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);
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if ( ! empty( $dir ) ) {
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$rules[] = "add_header Content-Security-Policy \"$dir\";";
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}
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}
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if ( $this->c->get_boolean( 'browsercache.security.cspro' ) && ( ! empty( $this->c->get_string( 'browsercache.security.cspro.reporturi' ) ) || ! empty( $this->c->get_string( 'browsercache.security.cspro.reportto' ) ) ) ) {
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$base = trim( $this->c->get_string( 'browsercache.security.cspro.base' ) );
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$reporturi = trim( $this->c->get_string( 'browsercache.security.cspro.reporturi' ) );
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$reportto = trim( $this->c->get_string( 'browsercache.security.cspro.reportto' ) );
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$frame = trim( $this->c->get_string( 'browsercache.security.cspro.frame' ) );
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$connect = trim( $this->c->get_string( 'browsercache.security.cspro.connect' ) );
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$font = trim( $this->c->get_string( 'browsercache.security.cspro.font' ) );
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$script = trim( $this->c->get_string( 'browsercache.security.cspro.script' ) );
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$style = trim( $this->c->get_string( 'browsercache.security.cspro.style' ) );
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$img = trim( $this->c->get_string( 'browsercache.security.cspro.img' ) );
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$media = trim( $this->c->get_string( 'browsercache.security.cspro.media' ) );
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$object = trim( $this->c->get_string( 'browsercache.security.cspro.object' ) );
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$plugin = trim( $this->c->get_string( 'browsercache.security.cspro.plugin' ) );
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$form = trim( $this->c->get_string( 'browsercache.security.cspro.form' ) );
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$frame_ancestors = trim( $this->c->get_string( 'browsercache.security.cspro.frame.ancestors' ) );
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$sandbox = trim( $this->c->get_string( 'browsercache.security.cspro.sandbox' ) );
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$child = trim( $this->c->get_string( 'browsercache.security.csp.child' ) );
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$manifest = trim( $this->c->get_string( 'browsercache.security.csp.manifest' ) );
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$scriptelem = trim( $this->c->get_string( 'browsercache.security.csp.scriptelem' ) );
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$scriptattr = trim( $this->c->get_string( 'browsercache.security.csp.scriptattr' ) );
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$styleelem = trim( $this->c->get_string( 'browsercache.security.csp.styleelem' ) );
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$scriptelem = trim( $this->c->get_string( 'browsercache.security.csp.styleattr' ) );
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$worker = trim( $this->c->get_string( 'browsercache.security.csp.worker' ) );
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$default = trim( $this->c->get_string( 'browsercache.security.cspro.default' ) );
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$dir = rtrim(
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( ! empty( $base ) ? "base-uri $base; " : '' ) .
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( ! empty( $reporturi ) ? "report-uri $reporturi; " : '' ) .
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( ! empty( $reportto ) ? "report-to $reportto; " : '' ) .
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( ! empty( $frame ) ? "frame-src $frame; " : '' ) .
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( ! empty( $connect ) ? "connect-src $connect; " : '' ) .
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( ! empty( $font ) ? "font-src $font; " : '' ) .
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( ! empty( $script ) ? "script-src $script; " : '' ) .
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( ! empty( $style ) ? "style-src $style; " : '' ) .
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( ! empty( $img ) ? "img-src $img; " : '' ) .
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( ! empty( $media ) ? "media-src $media; " : '' ) .
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( ! empty( $object ) ? "object-src $object; " : '' ) .
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( ! empty( $plugin ) ? "plugin-types $plugin; " : '' ) .
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( ! empty( $form ) ? "form-action $form; " : '' ) .
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( ! empty( $frame_ancestors ) ? "frame-ancestors $frame_ancestors; " : '' ) .
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( ! empty( $sandbox ) ? "sandbox $sandbox; " : '' ) .
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( ! empty( $child ) ? "child-src $child; " : '' ) .
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( ! empty( $manifest ) ? "manifest-src $manifest; " : '' ) .
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( ! empty( $scriptelem ) ? "script-src-elem $scriptelem; " : '' ) .
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( ! empty( $scriptattr ) ? "script-src-attr $scriptattr; " : '' ) .
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( ! empty( $styleelem ) ? "style-src-elem $styleelem; " : '' ) .
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( ! empty( $styleattr ) ? "style-src-attr $styleattr; " : '' ) .
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( ! empty( $worker ) ? "worker-src $worker; " : '' ) .
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( ! empty( $default ) ? "default-src $default;" : '' ),
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'; '
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);
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if ( ! empty( $dir ) ) {
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$rules[] = "add_header Content-Security-Policy-Report-Only \"$dir\";";
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}
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}
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if ( $this->c->get_boolean( 'browsercache.security.fp' ) ) {
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$fp_values = $this->c->get_array( 'browsercache.security.fp.values' );
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$feature_v = array();
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$permission_v = array();
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foreach ( $fp_values as $key => $value ) {
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if ( ! empty( $value ) ) {
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$value = str_replace( array( '"', "'" ), '', $value );
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$feature_v[] = "$key '$value'";
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$permission_v[] = "$key=($value)";
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}
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}
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if ( ! empty( $feature_v ) ) {
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$rules[] = ' Header set Feature-Policy "' . implode( ';', $feature_v ) . "\"\n";
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}
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if ( ! empty( $permission_v ) ) {
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$rules[] = ' Header set Permissions-Policy "' . implode( ',', $permission_v ) . "\"\n";
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}
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}
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}
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return $rules;
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}
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/**
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* Adds cache rules for type to &$rules.
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*
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* @param string $rules Rules.
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* @param array $mime_types MIME types.
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* @param string $section Section.
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* @return void
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*/
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private function generate_section( &$rules, $mime_types, $section ) {
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$expires = $this->c->get_boolean( 'browsercache.' . $section . '.expires' );
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$etag = $this->c->get_boolean( 'browsercache.' . $section . '.etag' );
|
|
$cache_control = $this->c->get_boolean( 'browsercache.' . $section . '.cache.control' );
|
|
$w3tc = $this->c->get_boolean( 'browsercache.' . $section . '.w3tc' );
|
|
$last_modified = $this->c->get_boolean( 'browsercache.' . $section . '.last_modified' );
|
|
|
|
if ( $etag || $expires || $cache_control || $w3tc || ! $last_modified ) {
|
|
$mime_types2 = apply_filters(
|
|
'w3tc_browsercache_rules_section_extensions',
|
|
$mime_types,
|
|
$this->c,
|
|
$section
|
|
);
|
|
$extensions = array_keys( $mime_types2 );
|
|
|
|
// Remove ext from filesmatch if its the same as permalink extension.
|
|
$pext = strtolower( pathinfo( get_option( 'permalink_structure' ), PATHINFO_EXTENSION ) );
|
|
|
|
if ( $pext ) {
|
|
$extensions = Util_Rule::remove_extension_from_list( $extensions, $pext );
|
|
}
|
|
|
|
$rules .= 'location ~ \\.(' . implode( '|', $extensions ) . ')$ {' . "\n";
|
|
|
|
$subrules = Dispatcher::nginx_rules_for_browsercache_section( $this->c, $section );
|
|
$rules .= ' ' . implode( "\n ", $subrules ) . "\n";
|
|
|
|
// Add rules for the Image Service extension, if active.
|
|
if ( 'other' === $section && array_key_exists( 'imageservice', $this->c->get_array( 'extensions.active' ) ) ) {
|
|
$rules .= "\n" . ' location ~* ^(?<path>.+)\.(jpe?g|png|gif)$ {' . "\n" .
|
|
' if ( $http_accept !~* "webp|\*/\*" ) {' . "\n" .
|
|
' break;' . "\n" .
|
|
' }' . "\n\n" .
|
|
' ' . implode( "\n ", Dispatcher::nginx_rules_for_browsercache_section( $this->c, $section, true ) ) . "\n" .
|
|
' add_header Vary Accept;' . "\n";
|
|
|
|
if ( $this->c->get_boolean( 'browsercache.no404wp' ) ) {
|
|
$rules .= ' try_files ${path}.webp $uri =404;';
|
|
} else {
|
|
$rules .= ' try_files ${path}.webp $uri /index.php?$args;';
|
|
}
|
|
|
|
$rules .= "\n" . ' }' . "\n\n";
|
|
}
|
|
|
|
if ( ! $this->c->get_boolean( 'browsercache.no404wp' ) ) {
|
|
$wp_uri = network_home_url( '', 'relative' );
|
|
$wp_uri = rtrim( $wp_uri, '/' );
|
|
$rules .= ' try_files $uri $uri/ ' . $wp_uri . '/index.php?$args;' . "\n";
|
|
}
|
|
|
|
$rules .= '}' . "\n";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns directives plugin applies to files of specific section
|
|
* Without location
|
|
*
|
|
* $extra_add_headers_set specifies if other add_header directives will
|
|
* be added to location block generated
|
|
*/
|
|
public function section_rules( $section, $extra_add_headers_set = false ) {
|
|
$rules = array();
|
|
|
|
$expires = $this->c->get_boolean( "browsercache.$section.expires" );
|
|
$lifetime = $this->c->get_integer( "browsercache.$section.lifetime" );
|
|
|
|
if ( $expires ) {
|
|
$rules[] = 'expires ' . $lifetime . 's;';
|
|
}
|
|
if ( version_compare( Util_Environment::get_server_version(), '1.3.3', '>=' ) ) {
|
|
if ( $this->c->get_boolean( "browsercache.$section.etag" ) ) {
|
|
$rules[] = 'etag on;';
|
|
} else {
|
|
$rules[] = 'etag off;';
|
|
}
|
|
}
|
|
if ( $this->c->get_boolean( "browsercache.$section.last_modified" ) ) {
|
|
$rules[] = 'if_modified_since exact;';
|
|
} else {
|
|
$rules[] = 'if_modified_since off;';
|
|
}
|
|
|
|
$add_header_rules = array();
|
|
if ( $this->c->get_boolean( "browsercache.$section.cache.control" ) ) {
|
|
$cache_policy = $this->c->get_string( "browsercache.$section.cache.policy" );
|
|
|
|
switch ( $cache_policy ) {
|
|
case 'cache':
|
|
$add_header_rules[] = 'add_header Pragma "public";';
|
|
$add_header_rules[] = 'add_header Cache-Control "public";';
|
|
break;
|
|
|
|
case 'cache_public_maxage':
|
|
$add_header_rules[] = 'add_header Pragma "public";';
|
|
|
|
if ( $expires ) {
|
|
$add_header_rules[] = 'add_header Cache-Control "public";';
|
|
} else {
|
|
$add_header_rules[] = "add_header Cache-Control \"max-age=$lifetime, public\";";
|
|
}
|
|
break;
|
|
|
|
case 'cache_validation':
|
|
$add_header_rules[] = 'add_header Pragma "public";';
|
|
$add_header_rules[] = 'add_header Cache-Control "public, must-revalidate, proxy-revalidate";';
|
|
break;
|
|
|
|
case 'cache_noproxy':
|
|
$add_header_rules[] = 'add_header Pragma "public";';
|
|
$add_header_rules[] = 'add_header Cache-Control "private, must-revalidate";';
|
|
break;
|
|
|
|
case 'cache_maxage':
|
|
$add_header_rules[] = 'add_header Pragma "public";';
|
|
|
|
if ( $expires ) {
|
|
$add_header_rules[] = 'add_header Cache-Control "public, must-revalidate, proxy-revalidate";';
|
|
} else {
|
|
$add_header_rules[] = "add_header Cache-Control \"max-age=$lifetime, public, must-revalidate, proxy-revalidate\";";
|
|
}
|
|
break;
|
|
|
|
case 'no_cache':
|
|
$add_header_rules[] = 'add_header Pragma "no-cache";';
|
|
$add_header_rules[] = 'add_header Cache-Control "max-age=0, private, no-store, no-cache, must-revalidate";';
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( $this->c->get_boolean( "browsercache.$section.w3tc" ) ) {
|
|
$add_header_rules[] = 'add_header X-Powered-By "' .
|
|
Util_Environment::w3tc_header() . '";';
|
|
}
|
|
|
|
if ( !empty( $add_header_rules ) || $extra_add_headers_set ) {
|
|
$add_header_rules = array_merge( $add_header_rules,
|
|
$this->security_rules() );
|
|
}
|
|
|
|
return array( 'add_header' => $add_header_rules, 'other' => $rules );
|
|
}
|
|
}
|