416 lines
12 KiB
PHP
416 lines
12 KiB
PHP
<?php
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namespace EesyPHP;
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use Throwable;
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class Log {
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/*
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* Log file path
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* @var string|null
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*/
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protected static $filepath = null;
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/*
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* Log file descriptor
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* @var resource|null
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*/
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protected static $file_fd = null;
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/*
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* Log Levels
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* @var array(string,int)
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*/
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protected static $levels = array(
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'TRACE' => 0,
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'DEBUG' => 1,
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'INFO' => 2,
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'WARNING' => 3,
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'ERROR' => 4,
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'FATAL' => 5,
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);
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/*
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* Default log level
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* @var string
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*/
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protected static $default_level = 'WARNING';
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/*
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* Current log level
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* @var string|null
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*/
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protected static $level = null;
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/*
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* Log PHP errors levels (as specified to set_error_handler())
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* Default (set in self::init() method):
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* - In TRACE or DEBUG: E_ALL & ~E_STRICT
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* - Otherwise: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
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*/
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protected static $php_errors_levels = null;
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// Custom fatal error handler
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protected static $fatal_error_handler = null;
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/**
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* Initialization
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* @param string $filepath The log file path
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* (optional, default: from log.file_path or log.cli_file_path is set)
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* @param string|null $level The log level
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* (optional, default: from log.level config key if set, otherwise,
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* see self :: $default_level)
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* @param int|null $php_errors_levels PHP errors level as expected by set_error_handler()
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* (optional, default: from log.php_errors_levels if set, E_ALL & ~E_STRICT
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* if level is TRACE or DEBUG, and E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
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* otherwise)
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* @return void
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*/
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public static function init($filepath=null, $level=null, $php_errors_levels=null) {
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if ($filepath)
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self :: $filepath = $filepath;
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elseif (php_sapi_name() == 'cli')
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self :: $filepath = App::get(
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'log.cli_logfile_path', App::get('log.cli_file_path'));
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else
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self :: $filepath = App::get('log.file_path');
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// Set log level
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self :: set_level($level?$level:App::get('log.level'));
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// Log PHP errors
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if (!is_null($php_errors_levels)) {
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self :: $php_errors_levels = $php_errors_levels;
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}
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elseif ($levels = App::get('log.php_errors_levels', array(), 'array')) {
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$code = 'self :: $php_errors_levels = ';
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while($level = array_shift($levels)) {
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if (!is_string($level)) continue;
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if (!defined($level) || !is_int(constant($level))) continue;
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$code .= $level;
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break;
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}
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foreach($levels as $level) {
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if (!is_string($level)) continue;
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$combine_operator = '&';
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if (in_array($level[0], array('|', '^', '&'))) {
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$combine_operator = $level[0];
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$level = substr($level, 1);
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}
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$not = false;
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if (in_array($level[0], array('!', '~'))) {
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$not = $level[0];
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$level = substr($level, 1);
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}
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if (!defined($level) || !is_int(constant($level))) continue;
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$code .= " $combine_operator ";
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if ($not) $code .= "$not";
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$code .= $level;
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}
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$code .= ";";
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eval($code);
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}
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elseif (in_array(self :: $level, array('DEBUG', 'TRACE'))) {
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self :: $php_errors_levels = E_ALL & ~E_STRICT;
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}
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else {
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self :: $php_errors_levels = E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED;
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}
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set_error_handler(array('EesyPHP\\Log', 'on_php_error'), self :: $php_errors_levels);
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// Log uncatched exceptions
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set_exception_handler(array('EesyPHP\\Log', 'exception'));
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}
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/**
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* Log a message
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* @param string $level The message level (key of self :: $levels)
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function log($level, $message, ...$extra_args) {
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global $argv;
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if (!array_key_exists($level, self :: $levels)) $level = self :: $default_level;
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if (self :: $levels[$level] < self :: $levels[self :: $level]) return true;
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if(self :: $filepath && is_null(self :: $file_fd)) {
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self :: $file_fd = fopen(self :: $filepath, 'a');
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}
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// Extra arguments passed, format message using sprintf
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if ($extra_args) {
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$message = call_user_func_array(
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'sprintf',
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array_merge(array($message), $extra_args)
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);
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}
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if (php_sapi_name() == "cli") {
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$msg = implode(' - ', array(
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date('Y/m/d H:i:s'),
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basename($argv[0]),
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$level,
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$message
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))."\n";
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}
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else {
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$msg = array(
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date('Y/m/d H:i:s'),
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$_SERVER['REQUEST_URI'],
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$_SERVER['REMOTE_ADDR'],
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);
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if (Auth::enabled())
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$msg[] = (Auth::user()?Auth::user()->username:'anonymous');
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$msg[] = $level;
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$msg[] = $message;
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$msg = implode(' - ', $msg)."\n";
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}
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if (self :: $file_fd)
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fwrite(self :: $file_fd, $msg);
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if ($level == 'FATAL')
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if (!is_null(self :: $fatal_error_handler))
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call_user_func(self :: $fatal_error_handler, $message);
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elseif (function_exists('fatal_error'))
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fatal_error($message);
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else
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die("\n$message\n\n");
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elseif (php_sapi_name() == "cli")
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echo $msg;
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return true;
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}
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/**
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* Log a trace message
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function trace($message, ...$extra_args) {
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return call_user_func_array(
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array('EesyPHP\\Log', 'log'),
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array_merge(array('TRACE', $message), $extra_args)
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);
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}
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/**
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* Log a debug message
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function debug($message, ...$extra_args) {
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return call_user_func_array(
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array('EesyPHP\\Log', 'log'),
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array_merge(array('DEBUG', $message), $extra_args)
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);
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}
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/**
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* Log an info message
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function info($message, ...$extra_args) {
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return call_user_func_array(
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array('EesyPHP\\Log', 'log'),
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array_merge(array('INFO', $message), $extra_args)
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);
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}
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/**
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* Log an warning message
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function warning($message, ...$extra_args) {
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return call_user_func_array(
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array('EesyPHP\\Log', 'log'),
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array_merge(array('WARNING', $message), $extra_args)
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);
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}
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/**
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* Log an error message
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function error($message, ...$extra_args) {
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return call_user_func_array(
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array('EesyPHP\\Log', 'log'),
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array_merge(array('ERROR', $message), $extra_args)
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);
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}
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/**
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* Log an fatal message
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* @param string $message The message to log
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* @param array $extra_args Extra arguments to use to compute message using sprintf
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* @return true
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*/
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public static function fatal($message, ...$extra_args) {
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return call_user_func_array(
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array('EesyPHP\\Log', 'log'),
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array_merge(array('FATAL', $message), $extra_args)
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);
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}
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/**
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* Register a contextual fatal error handler
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* @param null|callable $handler The fatal error handler (set as null to reset)
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* @return void
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*/
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public static function register_fatal_error_handler($handler) {
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// @phpstan-ignore-next-line
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if ($handler && !is_callable($handler))
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self :: fatal('Invalid fatal error handler provided: it is not callable !');
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self :: $fatal_error_handler = ($handler?$handler:null);
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}
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/**
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* Change of current log file
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* @param string $file The new log file path
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* @return bool
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*/
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public static function change_filepath($file) {
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if ($file == self :: $filepath) return True;
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if (self :: $file_fd) {
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fclose(self :: $file_fd);
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self :: $file_fd = null;
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}
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self :: $filepath = $file;
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return True;
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}
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/**
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* Set current log level
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* @param string $level The new log level to set
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* @return void
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*/
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public static function set_level($level=null) {
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// Set default log level (if not defined or invalid)
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if (is_null($level)) {
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self :: $level = self :: $default_level;
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}
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elseif (!array_key_exists($level, self :: $levels)) {
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self :: $level = self :: $default_level;
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self :: warning(
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"Invalid log level value found in configuration (%s). ".
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"Set as default (%s).", vardump($level), self :: $default_level);
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}
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else {
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self :: $level = $level;
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}
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}
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/*
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*******************************************************************************
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* Handle exception logging
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*******************************************************************************
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*/
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/**
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* Get the current backtrace
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* @param int $ignore_last The number of last levels to ignore
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* @return string
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*/
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public static function get_debug_backtrace_context($ignore_last=0) {
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$traces = debug_backtrace();
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// Also ignore this function it self
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$ignore_last++;
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if (!is_array($traces) || count($traces) <= $ignore_last)
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return "";
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$msg = array();
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for ($i=$ignore_last; $i < count($traces); $i++) {
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$trace = array("#$i");
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if (isset($traces[$i]['file']))
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$trace[] = $traces[$i]['file'].(isset($traces[$i]['line'])?":".$traces[$i]['line']:"");
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// @phpstan-ignore-next-line
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if (isset($traces[$i]['class']) && isset($traces[$i]['function']))
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$trace[] = implode(" ", array(
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$traces[$i]['class'],
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$traces[$i]['type'],
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$traces[$i]['function']. "()"));
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elseif (isset($traces[$i]['function']))
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$trace[] = $traces[$i]['function']. "()";
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$msg[] = implode(" - ", $trace);
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}
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return implode("\n", $msg);
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}
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/**
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* Log an exception
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* @param Throwable $exception
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* @param string|null $prefix The prefix of the log message
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* (optional, default: "An exception occured")
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* @param array $extra_args Extra arguments to use to compute prefix using sprintf
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* @return void
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*/
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public static function exception($exception, $prefix=null, ...$extra_args) {
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SentryIntegration :: log($exception);
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// If extra arguments passed, format prefix message using sprintf
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if ($prefix && $extra_args) {
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$prefix = call_user_func_array(
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'sprintf',
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array_merge(array($prefix), $extra_args)
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);
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}
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self :: error(
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"%s:\n%s\n## %s:%d : %s",
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($prefix?$prefix:"An exception occured"),
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$exception->getTraceAsString(),
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$exception->getFile(), $exception->getLine(),
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$exception->getMessage());
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}
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/*
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*******************************************************************************
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* Handle PHP error logging
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*******************************************************************************
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*/
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/**
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* Convert PHP error number to the corresponding label
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* @param int $errno
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* @return string
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*/
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public static function errno2type($errno) {
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$constants = get_defined_constants();
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if (is_array($constants))
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foreach($constants as $label => $value)
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if ($value == $errno && preg_match('/^E_(.*)$/', $label, $m))
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return $m[1];
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return 'UNKNOWN ERROR #'.$errno;
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}
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/**
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* Log a PHP error
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* Note: method design to be used as callable by set_error_handler()
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* @param int $errno The error number
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* @param string $errstr The error message
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* @param string $errfile The filename that the error was raised in
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* @param int $errline The line number where the error was raised
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* @return false Return false to let the normal error handler continues.
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*/
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public static function on_php_error($errno, $errstr, $errfile, $errline) {
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self :: error(
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"A PHP error occured : [%s] %s\nFile : %s (line : %d)",
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self :: errno2type($errno), $errstr, $errfile, $errline
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);
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return False;
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}
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}
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# vim: tabstop=2 shiftwidth=2 softtabstop=2 expandtab
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