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logging.php
254 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Class Meow_MWAI_Logging |
| 5 | * |
| 6 | * A logging utility that uses the WordPress Filesystem API for storage, |
| 7 | * with fallback to PHP error_log when necessary. |
| 8 | */ |
| 9 | class Meow_MWAI_Logging { |
| 10 | private static $plugin_name; |
| 11 | private static $option_name; |
| 12 | private static $log_file_path; |
| 13 | private static $fs; |
| 14 | private static $log_count = 0; |
| 15 | private static $rotate_check_frequency = 10; |
| 16 | private static $max_log_size = 5 * 1024 * 1024; // 5 MB |
| 17 | |
| 18 | /** |
| 19 | * Initialize the logger. |
| 20 | * |
| 21 | * @param string $option_name Option key for settings. |
| 22 | * @param string $plugin_name Plugin identifier for error log prefix. |
| 23 | */ |
| 24 | public static function init( $option_name, $plugin_name ) { |
| 25 | self::$plugin_name = $plugin_name; |
| 26 | self::$option_name = $option_name; |
| 27 | |
| 28 | if ( ! function_exists( 'request_filesystem_credentials' ) ) { |
| 29 | require_once ABSPATH . 'wp-admin/includes/file.php'; |
| 30 | } |
| 31 | |
| 32 | $creds = request_filesystem_credentials( site_url(), '', false, false, [] ); |
| 33 | if ( ! WP_Filesystem( $creds ) ) { |
| 34 | error_log( self::$plugin_name . " : Unable to initialize WP_Filesystem." ); |
| 35 | self::$fs = null; |
| 36 | } |
| 37 | else { |
| 38 | global $wp_filesystem; |
| 39 | self::$fs = $wp_filesystem; |
| 40 | } |
| 41 | |
| 42 | self::$log_file_path = self::get_logs_path( true ); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Determine or create the log file path using WP_Filesystem. |
| 47 | * |
| 48 | * @param bool $create Whether to generate a new file if none exists. |
| 49 | * @return string|false Path to log file or false if unavailable. |
| 50 | */ |
| 51 | private static function get_logs_path( $create = false ) { |
| 52 | $options = get_option( self::$option_name, null ); |
| 53 | if ( is_null( $options ) ) { |
| 54 | return null; |
| 55 | } |
| 56 | |
| 57 | if ( empty( self::$fs ) ) { |
| 58 | return null; |
| 59 | } |
| 60 | |
| 61 | $path = empty( $options['logs_path'] ) ? '' : $options['logs_path']; |
| 62 | |
| 63 | if ( $path && self::$fs->exists( $path ) ) { |
| 64 | return $path; |
| 65 | } |
| 66 | |
| 67 | if ( ! $create ) { |
| 68 | return null; |
| 69 | } |
| 70 | |
| 71 | $uploads = wp_upload_dir(); |
| 72 | $base_dir = trailingslashit( $uploads['basedir'] ); |
| 73 | |
| 74 | if ( ! self::$fs->is_dir( $base_dir ) ) { |
| 75 | self::$fs->mkdir( $base_dir ); |
| 76 | } |
| 77 | |
| 78 | $filename = MWAI_PREFIX . '_' . self::random_ascii_chars() . '.log'; |
| 79 | $new_path = $base_dir . $filename; |
| 80 | |
| 81 | self::$fs->put_contents( $new_path, '', FS_CHMOD_FILE ); |
| 82 | |
| 83 | $options['logs_path'] = $new_path; |
| 84 | update_option( self::$option_name, $options ); |
| 85 | |
| 86 | return $new_path; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Check if logging is enabled via plugin options and FS availability. |
| 91 | * |
| 92 | * @return bool |
| 93 | */ |
| 94 | private static function is_logging_enabled() { |
| 95 | $options = get_option( self::$option_name, null ); |
| 96 | if ( is_null( $options ) ) { |
| 97 | return false; |
| 98 | } |
| 99 | |
| 100 | $module_devtools = empty( $options['module_devtools'] ) ? false : $options['module_devtools']; |
| 101 | $server_debug_mode = empty( $options['server_debug_mode'] ) ? false : $options['server_debug_mode']; |
| 102 | |
| 103 | return ( $module_devtools && $server_debug_mode && ! empty( self::$fs ) ); |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Internal log writer. Appends to file and/or error_log. |
| 108 | */ |
| 109 | private static function add( $message = null, $icon = '', $error_log = false ) { |
| 110 | $date = date( 'Y-m-d H:i:s' ); |
| 111 | $message = is_string( $message ) ? strip_tags( $message ) : $message; |
| 112 | |
| 113 | if ( empty( $message ) ) { |
| 114 | $entry = "\n"; |
| 115 | } |
| 116 | else if ( ! empty( $icon ) ) { |
| 117 | $entry = "$date: $icon $message\n"; |
| 118 | } |
| 119 | else { |
| 120 | $entry = "$date: $message\n"; |
| 121 | } |
| 122 | |
| 123 | if ( self::is_logging_enabled() && self::$log_file_path ) { |
| 124 | if ( self::$fs->exists( self::$log_file_path ) ) { |
| 125 | $current = self::$fs->get_contents( self::$log_file_path ); |
| 126 | self::$fs->put_contents( self::$log_file_path, $current . $entry, FS_CHMOD_FILE ); |
| 127 | } |
| 128 | else { |
| 129 | self::$fs->put_contents( self::$log_file_path, $entry, FS_CHMOD_FILE ); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | if ( $error_log && ! empty( $message ) ) { |
| 134 | error_log( self::$plugin_name . " : $message" ); |
| 135 | } |
| 136 | |
| 137 | self::$log_count++; |
| 138 | |
| 139 | if ( self::$log_count >= self::$rotate_check_frequency ) { |
| 140 | self::maybe_rotate_log(); |
| 141 | self::$log_count = 0; |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * Logs a general message. |
| 147 | * |
| 148 | * @param string $message The message to log. |
| 149 | * @param string $icon Optional icon to prepend. |
| 150 | */ |
| 151 | public static function log( $message = null, $icon = '' ) { |
| 152 | self::add( $message, $icon ); |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Logs a warning message. |
| 157 | * |
| 158 | * @param string $message The warning message to log. |
| 159 | * @param string $icon Optional icon to prepend (default ⚠️). |
| 160 | */ |
| 161 | public static function warn( $message = null, $icon = '⚠️' ) { |
| 162 | self::add( $message, $icon ); |
| 163 | } |
| 164 | |
| 165 | /** |
| 166 | * Logs an error message and sends to PHP error_log. |
| 167 | * |
| 168 | * @param string $message The error message to log. |
| 169 | * @param string $icon Optional icon to prepend (default ❌). |
| 170 | */ |
| 171 | public static function error( $message = null, $icon = '❌' ) { |
| 172 | self::add( $message, $icon, true ); |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Logs a deprecated feature notice. |
| 177 | * |
| 178 | * @param string $message The message to log. |
| 179 | */ |
| 180 | public static function deprecated( $message = null ) { |
| 181 | self::add( $message, '🚨', true ); |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Clears the log file and resets the option. |
| 186 | */ |
| 187 | public static function clear() { |
| 188 | if ( self::$fs && self::$log_file_path && self::$fs->exists( self::$log_file_path ) ) { |
| 189 | self::$fs->delete( self::$log_file_path ); |
| 190 | $options = get_option( self::$option_name, null ); |
| 191 | $options['logs_path'] = ''; |
| 192 | update_option( self::$option_name, $options ); |
| 193 | self::$log_file_path = ''; |
| 194 | } |
| 195 | } |
| 196 | |
| 197 | /** |
| 198 | * Retrieves the log contents in reverse order (newest first). |
| 199 | * |
| 200 | * @return string |
| 201 | */ |
| 202 | public static function get() { |
| 203 | if ( self::$fs && self::$log_file_path && self::$fs->exists( self::$log_file_path ) ) { |
| 204 | $content = self::$fs->get_contents( self::$log_file_path ); |
| 205 | $lines = explode( "\n", $content ); |
| 206 | $lines = array_filter( $lines ); |
| 207 | $lines = array_reverse( $lines ); |
| 208 | |
| 209 | return implode( "\n", $lines ); |
| 210 | } |
| 211 | |
| 212 | return 'Empty log file.'; |
| 213 | } |
| 214 | |
| 215 | /** |
| 216 | * Checks file size and rotates if exceeding maximum. |
| 217 | */ |
| 218 | private static function maybe_rotate_log() { |
| 219 | if ( empty( self::$fs ) || empty( self::$log_file_path ) ) { |
| 220 | return; |
| 221 | } |
| 222 | |
| 223 | if ( self::$fs->exists( self::$log_file_path ) ) { |
| 224 | $size = self::$fs->size( self::$log_file_path ); |
| 225 | |
| 226 | if ( $size > self::$max_log_size ) { |
| 227 | |
| 228 | $info = pathinfo( self::$log_file_path ); |
| 229 | $archived = $info['dirname'] . '/' . $info['filename'] . '_' . date( 'Y-m-d_H-i-s' ) . '.' . $info['extension']; |
| 230 | |
| 231 | self::$fs->move( self::$log_file_path, $archived, true ); |
| 232 | self::$fs->put_contents( self::$log_file_path, '', FS_CHMOD_FILE ); |
| 233 | } |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * Generates a random ASCII string. |
| 239 | * |
| 240 | * @param int $length String length. |
| 241 | * @return string |
| 242 | */ |
| 243 | private static function random_ascii_chars( $length = 8 ) { |
| 244 | $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; |
| 245 | $result = ''; |
| 246 | |
| 247 | for ( $i = 0; $i < $length; $i++ ) { |
| 248 | $result .= $characters[ rand( 0, strlen( $characters ) - 1 ) ]; |
| 249 | } |
| 250 | |
| 251 | return $result; |
| 252 | } |
| 253 | } |
| 254 |