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<?php if ( ! defined( 'ABSPATH' ) ) { header( 'Status: 403 Forbidden' ); header( 'HTTP/1.1 403 Forbidden' ); exit; } /** * Class Breeze_Htaccess_Settings * * Handles the generation and management of .htaccess rules for Gzip compression * and browser caching. It also manages configurations for multisite and single site setups. / class Breeze_Htaccess_Settings { private $sub_sites_data = array(); public function __construct() { } /* * Updates the .htaccess file with Gzip compression rules. * * @param bool $clean Determines whether the Gzip rules should be removed from the .htaccess file. * If true, the existing Gzip rules will be deleted. * * @return void / public function update_gzip_htaccess( bool $clean = false ) { $rules = array(); $rules['before'] = '# Begin GzipofBreezeWPCache'; // used to identify start of the code. $rules['after'] = '# End GzipofBreezeWPCache'; // used to identify the end of the code. $rules['clean'] = $clean; if ( true === $clean ) { self::write_to_htaccess( $rules ); } $extract_sub_blogs = $this->collect_site_configurations(); // For multisite with different settings $content = $this->generate_gzip_rules( array( 'enabled_sites' => $extract_sub_blogs['gzip_enabled_sites'], 'disabled_sites' => $extract_sub_blogs['gzip_disabled_sites'], ) ); // This content will be written to .htaccess. $rules['content'] = $content; // Then use your existing method or a new one to write the rules to .htaccess self::write_to_htaccess( $rules ); } /* * Updates the .htaccess file with expires headers configuration. * * @param bool $clean Whether to clean existing expires rules before updating. When true, existing entries for expires headers will be removed. * * @return void / public function update_expires_htaccess( bool $clean = false ) { $rules = array(); $rules['before'] = '#Expires headers configuration added by BREEZE WP CACHE plugin'; // used to identify start of the code. $rules['after'] = '#End of expires headers configuration'; // used to identify the end of the code. $rules['clean'] = $clean; if ( true === $clean ) { self::write_to_htaccess( $rules ); } $extract_sub_blogs = $this->collect_site_configurations(); // For multisite with different settings $content = $this->generate_expires_rules( array( 'enabled_sites' => $extract_sub_blogs['expires_enabled_sites'], 'disabled_sites' => $extract_sub_blogs['expires_disabled_sites'], ) ); // This content will be written to .htaccess. $rules['content'] = $content; // Then use your existing method or a new one to write the rules to .htaccess self::write_to_htaccess( $rules ); } /* * Converts a given value to a boolean. * * @param mixed $value The value to be converted to a boolean * * @return bool The boolean representation of the value / private function to_bool( $value ): bool { return filter_var( $value, FILTER_VALIDATE_BOOLEAN ); } /* * Collects and organizes sites based on their gzip compression settings * * @return array{ * enabled_sites: array<string>, * disabled_sites: array<string>, * is_subdomains: bool, * is_multisite: bool * } / public function collect_site_configurations(): array { if ( ! empty( $this->sub_sites_data ) ) { return $this->sub_sites_data; } $site_config = array( 'gzip_enabled_sites' => array(), 'gzip_disabled_sites' => array(), 'expires_enabled_sites' => array(), 'expires_disabled_sites' => array(), 'is_subdomains' => defined( 'SUBDOMAIN_INSTALL' ) && SUBDOMAIN_INSTALL, 'is_multisite' => is_multisite(), ); $is_breeze_active = Breeze_Options_Reader::get_option_value( 'breeze-active' ); // Single site handling if ( false === $site_config['is_multisite'] ) { $gzip_enabled = Breeze_Options_Reader::get_option_value( 'breeze-gzip-compression' ); $expires_enabled = Breeze_Options_Reader::get_option_value( 'breeze-browser-cache' ); $is_breeze_active = $this->to_bool( $is_breeze_active ); $gzip_enabled = $this->to_bool( $gzip_enabled ); $expires_enabled = $this->to_bool( $expires_enabled ); $site_url = preg_replace( '(^https?://)', '', site_url() ); if ( true === $is_breeze_active ) { if ( true === $gzip_enabled ) { $site_config['gzip_enabled_sites'][] = $site_url; } else { $site_config['gzip_disabled_sites'][] = $site_url; } if ( true === $expires_enabled ) { $site_config['expires_enabled_sites'][] = $site_url; } else { $site_config['expires_disabled_sites'][] = $site_url; } } $this->sub_sites_data = $site_config; return $site_config; } // Multisite handling $sites = get_sites( array( 'fields' => 'ids', 'number' => 0, ) ); // Store current blog ID to restore later $current_blog_id = get_current_blog_id(); foreach ( $sites as $blog_id ) { switch_to_blog( $blog_id ); $site_url = preg_replace( '(^https?://)', '', site_url() ); if ( false === $site_config['is_subdomains'] ) { $site_url_network = preg_replace( '(^https?://)', '', untrailingslashit( network_site_url() ) ); $site_url = str_replace( $site_url_network, '', $site_url ); $site_url = empty( $site_url ) ? '/' : $site_url; } $is_breeze_active = $this->get_option_value( 'breeze-active', $blog_id ); if ( true === $is_breeze_active ) { // Check if gzip is enabled $gzip_enabled = $this->get_option_value( 'breeze-gzip-compression', $blog_id ); $expires_enabled = $this->get_option_value( 'breeze-browser-cache', $blog_id ); $gzip_enabled = $this->to_bool( $gzip_enabled ); $expires_enabled = $this->to_bool( $expires_enabled ); if ( true === $gzip_enabled ) { $site_config['gzip_enabled_sites'][] = $site_url; } else { $site_config['gzip_disabled_sites'][] = $site_url; } if ( true === $expires_enabled ) { $site_config['expires_enabled_sites'][] = $site_url; } else { $site_config['expires_disabled_sites'][] = $site_url; } } else { $site_config['gzip_disabled_sites'][] = $site_url; $site_config['expires_disabled_sites'][] = $site_url; } } // Restore the original blog switch_to_blog( $current_blog_id ); $this->sub_sites_data = $site_config; return $site_config; } /* * Retrieves the value of a specified option for a blog, considering inheritance settings. * * @param string $option_name The name of the option to retrieve. * @param int $blog_id The ID of the blog for which to fetch the option value. * * @return bool The boolean representation of the option value. / private function get_option_value( string $option_name, int $blog_id ): bool { $blog_id = intval( $blog_id ); $get_inherit = get_blog_option( $blog_id, 'breeze_inherit_settings', '1' ); $is_custom = filter_var( $get_inherit, FILTER_VALIDATE_BOOLEAN ); // Settings are inherited. if ( true === $is_custom ) { // Retrieve the network-wide option if inheritance is disabled. $get_option_group = get_network_option( null, 'breeze_basic_settings', array() ); if ( array_key_exists( $option_name, $get_option_group ) ) { return $this->to_bool( $get_option_group[ $option_name ] ); } } // Fetch the option value for a specific blog ID. $get_option_group = get_blog_option( $blog_id, 'breeze_basic_settings', array() ); if ( array_key_exists( $option_name, $get_option_group ) ) { return $this->to_bool( $get_option_group[ $option_name ] ); } return false; } /* * Generate browser cache rules using negation with line breaks * * @param array $sites Array with 'enabled_sites' and 'disabled_sites' * * @return string Generated htaccess rules / private function generate_expires_rules( array $sites ): string { $indent = ' '; $result = array(); // If there are no disabled sites, apply caching to all if ( empty( $sites['disabled_sites'] ) ) { // enabled_sites $result[] = '#Expires headers configuration added by BREEZE WP CACHE plugin'; $result[] = $indent . $this->get_expires_directives( 1 ); $result[] = '#End of expires headers configuration'; return implode( "\n", $result ); } // If there are some disabled sites, use negation // Split into chunks with line breaks for readability $chunks = $this->chunk_pattern_for_negation( $sites['disabled_sites'], $indent ); $result[] = '#Expires headers configuration added by BREEZE WP CACHE plugin'; $result[] = $indent . '<If "' . $chunks . '">'; $result[] = $indent . $indent . '# Browser cache directives for all sites except those excluded'; $result[] = $this->get_expires_directives( 2 ); $result[] = $indent . '</If>'; $result[] = '#End of expires headers configuration'; return implode( "\n", $result ); } /* * Generate GZIP compression rules using negation with line breaks * * @param array $sites Array with 'enabled_sites' and 'disabled_sites' * * @return string Generated htaccess rules / private function generate_gzip_rules( array $sites ): string { $indent = ' '; $result = array(); // If there are no disabled sites, apply gzip to all if ( empty( $sites['disabled_sites'] ) ) { $result[] = '# Begin GzipofBreezeWPCache'; $result[] = '<IfModule mod_deflate.c>'; $result[] = $indent . '# Enable GZIP compression for all sites'; $result[] = $indent . $this->get_gzip_directives( 1 ); $result[] = '</IfModule>'; $result[] = '# End GzipofBreezeWPCache'; return implode( "\n", $result ); } // Split into chunks with line breaks for readability $chunks = $this->chunk_pattern_for_negation( $sites['disabled_sites'], $indent ); $result[] = '# Begin GzipofBreezeWPCache'; $result[] = '<IfModule mod_deflate.c>'; $result[] = $indent . '<If "' . $chunks . '">'; $result[] = $indent . $indent . '# Enable GZIP compression for all sites except those excluded'; $result[] = $this->get_gzip_directives( 2 ); $result[] = $indent . '</If>'; $result[] = '</IfModule>'; $result[] = '# End GzipofBreezeWPCache'; return implode( "\n", $result ); } /* * Chunks a long pattern list for negation into a manageable format with line breaks * * @param array $patterns Site patterns to negate * @param string $indent Indentation string * * @return string Complex condition string with line breaks / private function chunk_pattern_for_negation( array $patterns, string $indent = ' ' ): string { if ( empty( $patterns ) ) { return ''; } // Escape special regex characters in each pattern $escaped_patterns = array_map( function ( $pattern ) { // Escape dots, hyphens, and other special regex characters return preg_replace( '/([\.\|\-\|\+\|\?\|\[\|\]\|$\|$\|\{\|\}\|\^\|\$\|\\|])/', '\\\\$1', $pattern ); }, $patterns ); // Split patterns into chunks to avoid line length issues $chunks = array_chunk( $escaped_patterns, 30 ); $condition_parts = array(); foreach ( $chunks as $chunk ) { if ( is_multisite() ) { $subdomain = defined( 'SUBDOMAIN_INSTALL' ) && SUBDOMAIN_INSTALL; if ( false === $subdomain ) { $condition_parts[] = '%{THE_REQUEST} !~ m#^GET (' . implode( '\|', $chunk ) . ')#'; } else { $condition_parts[] = '%{HTTP_HOST} !~ m#^(' . implode( '\|', $chunk ) . ')#'; } } else { $condition_parts[] = '%{THE_REQUEST} !~ m#^GET (' . implode( '\|', $chunk ) . ')#'; } } // The first condition $first = array_shift( $condition_parts ); $result = $first; // For additional conditions, add line breaks and indentation foreach ( $condition_parts as $part ) { $result .= ' && \\' . PHP_EOL . $indent . $indent . $part; } return $result; } /* * Generates combined mod_deflate and browser cache configuration * * @param int $indent_level Number of indentation levels * * @return string Generated .htaccess rules for compression and caching / private function get_expires_directives( int $indent_level = 1 ): string { $indent = str_repeat( ' ', $indent_level ); $directives = array( '# Browser-specific compression rules', '# Browser cache TTL', '<IfModule mod_env.c>', ' SetEnv BREEZE_BROWSER_CACHE_ON 1', '</IfModule>', '<IfModule mod_expires.c>', ' ExpiresActive On', ' # Images', ' ExpiresByType image/jpg "access plus 1 year"', ' ExpiresByType image/jpeg "access plus 1 year"', ' ExpiresByType image/gif "access plus 1 year"', ' ExpiresByType image/png "access plus 1 year"', ' ExpiresByType image/webp "access plus 1 year"', ' ExpiresByType image/svg+xml "access plus 1 year"', ' ExpiresByType image/x-icon "access plus 1 year"', ' ExpiresByType image/bmp "access plus 1 year"', '', ' # Video', ' ExpiresByType video/mp4 "access plus 1 year"', ' ExpiresByType video/mpeg "access plus 1 year"', ' ExpiresByType video/ogg "access plus 1 year"', ' ExpiresByType video/webm "access plus 1 year"', '', ' # Audio', ' ExpiresByType audio/ogg "access plus 1 year"', '', ' # CSS, JavaScript', ' ExpiresByType text/css "access plus 1 month"', ' ExpiresByType text/javascript "access plus 1 month"', ' ExpiresByType application/javascript "access plus 1 month"', ' ExpiresByType application/x-javascript "access plus 1 month"', '', ' # Fonts', ' ExpiresByType application/x-font-ttf "access plus 1 year"', ' ExpiresByType application/x-font-woff "access plus 1 year"', ' ExpiresByType application/font-woff2 "access plus 1 year"', ' ExpiresByType font/ttf "access plus 1 year"', ' ExpiresByType font/woff "access plus 1 year"', ' ExpiresByType font/woff2 "access plus 1 year"', ' ExpiresByType application/vnd.ms-fontobject "access plus 1 year"', ' ExpiresByType font/eot "access plus 1 year"', ' ExpiresByType font/opentype "access plus 1 year"', ' ExpiresByType application/font-woff "access plus 1 year"', '', ' # Data interchange', ' ExpiresByType application/xml "access plus 0 seconds"', ' ExpiresByType application/json "access plus 0 seconds"', ' ExpiresByType application/ld+json "access plus 0 seconds"', ' ExpiresByType application/schema+json "access plus 0 seconds"', ' ExpiresByType application/vnd.geo+json "access plus 0 seconds"', ' ExpiresByType text/xml "access plus 0 seconds"', ' ExpiresByType application/rdf+xml "access plus 1 hour"', '', ' # Manifest files', ' ExpiresByType application/manifest+json "access plus 1 week"', ' ExpiresByType application/x-web-app-manifest+json "access plus 0 seconds"', ' ExpiresByType text/cache-manifest "access plus 0 seconds"', '', ' # Favicon', ' ExpiresByType image/vnd.microsoft.icon "access plus 1 week"', ' ExpiresByType image/x-icon "access plus 1 week"', '', ' # HTML no caching', ' ExpiresByType text/html "access plus 0 seconds"', '', ' # Feeds', ' ExpiresByType application/rss+xml "access plus 1 hour"', ' ExpiresByType application/atom+xml "access plus 1 hour"', '', ' # PDF', ' ExpiresByType application/pdf "access plus 1 month"', '', ' # Other', ' ExpiresByType application/xhtml-xml "access plus 1 month"', ' ExpiresByType application/x-shockwave-flash "access plus 1 month"', ' ExpiresByType text/x-cross-domain-policy "access plus 1 week"', '', ' # Default', ' ExpiresDefault "access plus 1 month"', '</IfModule>', '', '# Set proper headers for caching', '<IfModule mod_headers.c>', ' Header append Vary Accept-Encoding', ' # One year for image and font files', ' <FilesMatch "\.(jpg\|jpeg\|gif\|png\|ico\|svg\|webp\|ttf\|ttc\|otf\|eot\|woff\|woff2)$">', ' Header set Cache-Control "max-age=31536000, public"', ' </FilesMatch>', '', ' # One month for css and js', ' <FilesMatch "\.(css\|js)$">', ' Header set Cache-Control "max-age=2592000, public"', ' </FilesMatch>', '</IfModule>', ); return $indent . implode( PHP_EOL . $indent, $directives ); } /* * Returns the mod_deflate directives with proper indentation * * @param int $indent_level Number of indentation levels * * @return string Indented directives / private function get_gzip_directives( int $indent_level = 1 ): string { $indent = str_repeat( ' ', $indent_level ); $directives = array( '# Enable GZIP compression', '<IfModule mod_env.c>', ' SetEnv BREEZE_GZIP_ON 1', '</IfModule>', '<IfModule mod_setenvif.c>', ' # Handle older browsers that can\'t handle compression properly', ' BrowserMatch ^Mozilla/4 gzip-only-text/html', ' BrowserMatch ^Mozilla/4\.0[678] no-gzip', ' BrowserMatch \bMSIE !no-gzip !gzip-only-text/html', ' BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html', '</IfModule>', '<IfModule mod_headers.c>', ' Header append Vary User-Agent env=!dont-vary', '</IfModule>', 'AddType x-font/woff .woff', 'AddOutputFilterByType DEFLATE text/plain', 'AddOutputFilterByType DEFLATE text/html', 'AddOutputFilterByType DEFLATE text/xml', 'AddOutputFilterByType DEFLATE text/css', 'AddOutputFilterByType DEFLATE text/javascript', 'AddOutputFilterByType DEFLATE text/vtt', 'AddOutputFilterByType DEFLATE text/x-component', 'AddOutputFilterByType DEFLATE application/xml', 'AddOutputFilterByType DEFLATE application/xhtml+xml', 'AddOutputFilterByType DEFLATE application/rss+xml', 'AddOutputFilterByType DEFLATE application/javascript', 'AddOutputFilterByType DEFLATE application/x-javascript', 'AddOutputFilterByType DEFLATE application/x-httpd-php', 'AddOutputFilterByType DEFLATE application/x-httpd-fastphp', 'AddOutputFilterByType DEFLATE application/atom+xml', 'AddOutputFilterByType DEFLATE application/json', 'AddOutputFilterByType DEFLATE application/ld+json', 'AddOutputFilterByType DEFLATE application/vnd.ms-fontobject', 'AddOutputFilterByType DEFLATE application/x-font-ttf', 'AddOutputFilterByType DEFLATE application/x-web-app-manifest+json', 'AddOutputFilterByType DEFLATE application/font-woff2', 'AddOutputFilterByType DEFLATE application/x-font-woff', 'AddOutputFilterByType DEFLATE font/woff', 'AddOutputFilterByType DEFLATE font/opentype', 'AddOutputFilterByType DEFLATE font/ttf', 'AddOutputFilterByType DEFLATE font/eot', 'AddOutputFilterByType DEFLATE font/otf', 'AddOutputFilterByType DEFLATE image/svg+xml', 'AddOutputFilterByType DEFLATE image/x-icon', 'AddOutputFilterByType DEFLATE application/js', ); return $indent . implode( PHP_EOL . $indent, $directives ); } /* * Writes or modifies the .htaccess file based on provided rules and content. * * @param array $args An associative array of arguments: * - 'before' (string): The marker indicating the start of rules to replace. * - 'after' (string): The marker indicating the end of rules to replace. * - 'content' (string): The new rules content to be inserted. * - 'clean' (bool, optional): If set to false, appends the new content instead of completely replacing old rules. * * @return bool True on successful modification of the .htaccess file, false otherwise. / public static function write_to_htaccess( array $args ): bool { $htaccess_path = trailingslashit( ABSPATH ) . '.htaccess'; if ( ! is_super_admin() && 'cli' !== php_sapi_name() ) { return false; } // open htaccess file if ( file_exists( $htaccess_path ) ) { $htaccess_content = file_get_contents( $htaccess_path ); } if ( empty( $htaccess_content ) ) { return false; } // Remove old rules. $htaccess_content = preg_replace( "/{$args['before']}[\s\S]{$args['after']}" . PHP_EOL . '/im', '', $htaccess_content ); if ( array_key_exists( 'clean', $args ) && false === $args['clean'] ) { $htaccess_content = $args['content'] . PHP_EOL . $htaccess_content; } file_put_contents( $htaccess_path, $htaccess_content ); return true; } }

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