<?php
class MailChimp_WooCommerce_Log_Viewer {
/**
* @var string file
*/
private static $file = null;
public static $directory = '*';
private static $levels_classes = array(
'debug' => 'info',
'info' => 'success',
'notice' => 'info',
'warning' => 'warning',
'error' => 'error',
'critical' => 'error',
'alert' => 'error',
'emergency' => 'error',
'processed' => 'success',
);
private static $levels_imgs = array(
'debug' => 'info',
'info' => 'info',
'notice' => 'info',
'warning' => 'warning',
'error' => 'warning',
'critical' => 'warning',
'alert' => 'warning',
'emergency' => 'warning',
'processed' => 'info',
);
/**
* Log levels that are used
*
* @var array
*/
public static $log_levels = array(
'emergency',
'alert',
'critical',
'error',
'warning',
'notice',
'info',
'debug',
'processed',
);
const MAX_FILE_SIZE = 52428800;
/**
* @param $file
*
* @throws Exception
*/
public static function setFile( $file ) {
$file = self::pathToLogFile( $file );
if ( file_exists( $file ) ) {
self::$file = $file;
}
}
/**
* @param $file
* @return string
* @throws Exception
*/
public static function pathToLogFile( $file ) {
if ( ! strpos( '/', $file ) ) {
$logsPath = static::getLogDirectory();
if ( static::$directory !== '*' ) {
$logsPath .= '/' . static::$directory;
}
$file = $logsPath . '/' . $file;
}
return $file;
}
/**
* @return string
*/
public static function getFileName() {
return basename( self::$file );
}
/**
* @return array|null
*/
public static function all() {
$log = array();
$directory = static::getLogDirectory();
$pattern = '/\d{4}-\d{2}-\d{2}[T]\d{2}:\d{2}:\d{2}[+]\d\d[:]\d\d.*/';
if ( ! self::$file ) {
$log_file = self::getFiles();
if ( ! count( $log_file ) ) {
return array();
}
self::$file = $log_file[0];
if ( self::$file === 'test-log.log' && isset( $log_file[1] ) ) {
self::$file = $log_file[1];
}
self::$file = $directory . '/' . self::$file;
}
$file_path = self::$file;
if ( filesize( $file_path ) > self::MAX_FILE_SIZE ) {
return null;
}
$file = file_get_contents( $file_path );
preg_match_all( $pattern, $file, $headings );
if ( ! is_array( $headings ) || empty( $headings ) ) {
return $log;
}
$log_data = preg_split( $pattern, $file );
if ( $log_data[0] < 1 ) {
array_shift( $log_data );
}
foreach ( $headings as $h ) {
for ( $i = 0, $j = count( $h ); $i < $j; $i++ ) {
preg_match( '/^(\d{4}-\d{2}-\d{2}[T]\d{2}:\d{2}:\d{2}[+]\d\d[:]\d\d) (EMERGENCY|ALERT|CRITICAL|ERROR|WARNING|NOTICE|INFO|DEBUG|PROCESSED) (.*)/', $h[ $i ], $current );
if ( ! isset( $current[3] ) ) {
continue;
}
$context = strtolower( $current[2] );
if ( ! array_key_exists( $context, self::$levels_classes ) ) {
continue;
}
$log[] = array(
'context' => $context,
'level' => $context,
'level_class' => self::$levels_classes[ $context ],
'level_img' => self::$levels_imgs[ $context ],
'date' => $current[1],
'text' => $current[3],
'stack' => preg_replace( "/^\n*/", '', $log_data[ $i ] ),
);
}
}
return array_reverse( $log );
}
public static function setDirectory( $dir ) {
static::$directory = "{$dir}";
}
/**
* @param bool $basename
* @return array
*/
public static function getFiles( $basename = false ) {
if ( ! ( $dir = static::getLogDirectory() ) ) {
return array();
}
$files = @scandir( $dir );
$files = array_reverse( $files );
$files = array_filter(
$files,
function( $value ) {
return static::stringEndsWith( $value, '.log' ) && static::isValidLogFile( $value );
}
);
if ( $basename && is_array( $files ) ) {
foreach ( $files as $k => $file ) {
$files[ $k ] = basename( $file );
}
}
return array_values( $files );
}
/**
* @return null
*/
public static function getLogDirectory() {
return ! defined( 'WC_LOG_DIR' ) ? null : rtrim( WC_LOG_DIR, '/' );
}
/**
* @param $haystack
* @param $needles
* @return bool
*/
public static function stringEndsWith( $haystack, $needles ) {
foreach ( (array) $needles as $needle ) {
if ( substr( $haystack, -strlen( $needle ) ) === (string) $needle ) {
return true;
}
}
return false;
}
/**
* @param $file
*
* @return bool
*/
public static function isValidLogFile( $file ) {
return mailchimp_string_contains( $file, array('mailchimp_', 'fatal-') );
}
}