162 lines
3.5 KiB
PHP
162 lines
3.5 KiB
PHP
<?php
|
|
class Debug {
|
|
const LOG_DISABLED = -1;
|
|
const LOG_NORMAL = 0;
|
|
const LOG_VERBOSE = 1;
|
|
const LOG_EXTENDED = 2;
|
|
|
|
const SEPARATOR = "<-{log-separator}->";
|
|
|
|
const ALL_LOG_LEVELS = [
|
|
Debug::LOG_DISABLED,
|
|
Debug::LOG_NORMAL,
|
|
Debug::LOG_VERBOSE,
|
|
Debug::LOG_EXTENDED,
|
|
];
|
|
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
public static int $LOG_DISABLED = self::LOG_DISABLED;
|
|
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
public static int $LOG_NORMAL = self::LOG_NORMAL;
|
|
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
public static int $LOG_VERBOSE = self::LOG_VERBOSE;
|
|
|
|
/**
|
|
* @deprecated
|
|
*/
|
|
public static int $LOG_EXTENDED = self::LOG_EXTENDED;
|
|
|
|
private static bool $enabled = false;
|
|
private static bool $quiet = false;
|
|
private static ?string $logfile = null;
|
|
private static bool $enable_html = false;
|
|
|
|
private static int $loglevel = self::LOG_NORMAL;
|
|
|
|
public static function set_logfile(string $logfile): void {
|
|
self::$logfile = $logfile;
|
|
}
|
|
|
|
public static function enabled(): bool {
|
|
return self::$enabled;
|
|
}
|
|
|
|
public static function set_enabled(bool $enable): void {
|
|
self::$enabled = $enable;
|
|
}
|
|
|
|
public static function set_quiet(bool $quiet): void {
|
|
self::$quiet = $quiet;
|
|
}
|
|
|
|
/**
|
|
* @param Debug::LOG_* $level
|
|
*/
|
|
public static function set_loglevel(int $level): void {
|
|
self::$loglevel = $level;
|
|
}
|
|
|
|
/**
|
|
* @return int Debug::LOG_*
|
|
*/
|
|
public static function get_loglevel(): int {
|
|
return self::$loglevel;
|
|
}
|
|
|
|
/**
|
|
* @param int $level integer loglevel value
|
|
* @return Debug::LOG_* if valid, warn and return LOG_DISABLED otherwise
|
|
*/
|
|
public static function map_loglevel(int $level) : int {
|
|
if (in_array($level, self::ALL_LOG_LEVELS)) {
|
|
/** @phpstan-ignore-next-line */
|
|
return $level;
|
|
} else {
|
|
user_error("Passed invalid debug log level: $level", E_USER_WARNING);
|
|
return self::LOG_DISABLED;
|
|
}
|
|
}
|
|
|
|
public static function enable_html(bool $enable) : void {
|
|
self::$enable_html = $enable;
|
|
}
|
|
|
|
/**
|
|
* @param Debug::LOG_* $level log level
|
|
*/
|
|
public static function log(string $message, int $level = Debug::LOG_NORMAL): bool {
|
|
|
|
if (!self::$enabled || self::$loglevel < $level) return false;
|
|
|
|
$ts = date("H:i:s", time());
|
|
if (function_exists('posix_getpid')) {
|
|
$ts = "$ts/" . posix_getpid();
|
|
}
|
|
|
|
$orig_message = $message;
|
|
|
|
if ($message === self::SEPARATOR) {
|
|
$message = self::$enable_html ? "<hr/>" :
|
|
"=================================================================================================================================";
|
|
}
|
|
|
|
if (self::$logfile) {
|
|
$fp = fopen(self::$logfile, 'a+');
|
|
|
|
if ($fp) {
|
|
$locked = false;
|
|
|
|
if (function_exists("flock")) {
|
|
$tries = 0;
|
|
|
|
// try to lock logfile for writing
|
|
while ($tries < 5 && !$locked = flock($fp, LOCK_EX | LOCK_NB)) {
|
|
sleep(1);
|
|
++$tries;
|
|
}
|
|
|
|
if (!$locked) {
|
|
fclose($fp);
|
|
user_error("Unable to lock debugging log file: " . self::$logfile, E_USER_WARNING);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
fputs($fp, "[$ts] $message\n");
|
|
|
|
if (function_exists("flock")) {
|
|
flock($fp, LOCK_UN);
|
|
}
|
|
|
|
fclose($fp);
|
|
|
|
if (self::$quiet)
|
|
return false;
|
|
|
|
} else {
|
|
user_error("Unable to open debugging log file: " . self::$logfile, E_USER_WARNING);
|
|
}
|
|
}
|
|
|
|
if (self::$enable_html) {
|
|
if ($orig_message === self::SEPARATOR) {
|
|
print "$message\n";
|
|
} else {
|
|
print "<span class='log-timestamp'>$ts</span> <span class='log-message'>$message</span>\n";
|
|
}
|
|
} else {
|
|
print "[$ts] $message\n";
|
|
}
|
|
|
|
return true;
|
|
}
|
|
}
|