.
**
** debug.class - Debug Functionality for ITools
*/
/**
* Debug functions
*/
class it_debug
{
var $level;
static $force_html;
/**
* Constructor
* @param $level Debug level. All debug() calls with a level <= $level are shown.
*/
function __construct($level=0)
{
$this->level = isset($GLOBALS['debug_level']) ? $GLOBALS['debug_level'] : $level;
}
/**
* Output a message if the global debug level is higher or the same as $level
* @param $text Message to display
* @param $level Debug level
*/
function debug($text, $level = 0)
{
if ($this->level >= $level)
{
echo (isset($_SERVER['REMOTE_ADDR']) ? nl2br("$level $text\n") : "$level $text")."\n";
flush();
}
}
static function echo($args)
{
if (getenv('IT_ED_STDERR'))
fputs(STDERR, self::dump($args));
else
echo self::dump($args);
}
static function debug_backtrace($p = []) {
if (!is_array($p))
$p = array('skiplevels' => $p);
$p += array('levels' => 0, 'skiplevels'=> 0, 'skipfiles' => "###");
foreach ($p['trace'] ?: debug_backtrace(@constant('DEBUG_BACKTRACE_IGNORE_ARGS')) as $call)
{
if (!$result && it::match('it_debug\.class$', $call['file']))
continue;
if (!$result && it::match($p['skipfiles'], $call['file']))
continue;
if (!$result && $p['skiplevels']-- > 0)
continue;
$result[] = $call;
if (--$p['levels'] == 0)
break;
}
return $result;
}
/**
* Get source line of grandparent calling this function
* @param $stacksoffs go up an extra $stacksoffs levels
*/
static function srcline($p = array())
{
$stack = self::debug_backtrace($p);
$line = $stack[1]['line'];
$file = $stack[1]['file'];
if (!isset($GLOBALS['it_debug::dump source'][$file]))
$GLOBALS['it_debug::dump source'][$file] = @it::file($file);
return $GLOBALS['it_debug::dump source'][$file][$line-1];
}
/**
* Prepare for debug output being echoed
*/
static function setup()
{
$GLOBALS['debug_noredir'] = 1;
if (ob_get_level() == 0 && $_SERVER['REMOTE_ADDR'])
ob_start(); # prevent later 'headers already sent' error
if ($_SERVER['REMOTE_ADDR'] && !EDC('edplain') && it::match('(?:^|,)\s*text/html\s*(?:,|$)', $_SERVER['HTTP_ACCEPT']))
self::$force_html = true;
}
/**
* Backend for functions D(), ED() and EDX() in functions.php
* @param Origargs Array containing original arguments do ED() etc
* @param $p['color'] Allow color [true]
* @param $p['html'] Allow html [default based on REMOTE_ADDR]
* @param $p['short'] Omit variable names
* @return String representation of dump
*/
static function dump($args, $p = [])
{
$p += ['html' => !EDC('edplain') && (self::$force_html || $_SERVER['REMOTE_ADDR']), 'color' => true];
$htmlspecialchars = array("&" => "&", '<' => "<", '>' => ">");
$args = count($args) ? $args : [it_debug::backtrace(['skiplevels' => 1])];
if ((preg_match('/csv|txt|gif|jpg/', $_SERVER['PHP_SELF']) || preg_grep('#text/(calendar|css|javascript|json|plain|rfc822|xml)|application/#', headers_list()) || $GLOBALS['debug_edplain']) && !$GLOBALS['debug_edhtml'])
;
else if ($p['html'])
list($blue, $noblue) = $p['color'] ? ["", ""] : [];
else if (defined('STDOUT') && posix_isatty(STDOUT) && $p['color'])
list($blue, $noblue, $red, $nored, $ansiok) = getenv('IT_ED_BRIGHT') ? array("\033[34m", "\033[m", "\033[33m", "\033[m", 1) : array("\033[34m", "\033[m", "\033[31m", "\033[m", 1);
$src = it_debug::srcline();
list($dummy, $function, $paramlist) = preg_match('#\b(D|ED|EDC|EDX)\s*\((.*)#i', $src, $parts) ? $parts : array();
$paramtokens = token_get_all("\s*([^\n]+),#", 'var \$$1 = $2;', $values);
$item = rtrim($head, '\\') . "class $classname {" . $values . "}" . $tail;
}
$item = preg_replace_callback('/\b(1[2-9]\d\d\d\d\d\d\d\d)\b(.*)/', function($m) { return $m[1] . $m[2] . " # " . date('Y-m-d H:i:s', $m[1]); }, $item);
$item = preg_replace("#(=>?)\s*\n\s*(array|class)#", '$1 $2', $item); # array( and class on same line as key
$item = preg_replace_callback('#array \(\s+([^(){};]{1,100}),\s+\)#', function($m) { return "array (" . preg_replace("#\n\s+#", " ", $m[1]) . ")"; }, $item); # short arrays on 1 line
$item = preg_replace('#class (\S+) \{\s+([^({,;]+;)?\s+\}#', 'class $1 { $2 }', $item); # 1-element objects on 1 line
#$item = preg_replace('#\{\s*var \$attr#', '{ var $attr', $item); # move $attr on same line
$item = preg_replace("#\\(\s*\n\s*\\)#", "()", $item); # empty arrays on 1 line
$item = preg_replace("# =>\s*\n\s+\(object\) array\(\n#", " => (object) array(\n", $item);
#$item = preg_replace('#\s+var \$_(.|\n)*?;\s*\n#', "", $item);
$item = "$red$item$nored";
if ($p['html'])
$item = it::replace(['[\x00-\x08\x0b-\x0c\x0e-\x1f]' => ""], preg_replace("#(https?:)?//[^\s'\"]+#", "\$0", strtr($item, $htmlspecialchars)), ['utf8' => false]); # htmlspecialchars() does not like bad utf8
if (preg_match('/^[\'"]/', $var))
$r .= "$item ";
else
{
$var = $p['short'] ? "" : "$blue$var=$noblue";
$r .= $previtem && preg_match("/\n/", $item . $previtem) ? "\n$var$item " : "$var$item ";
$previtem = $item;
}
}
if ($GLOBALS['debug_indent'])
$r = str_repeat(" ", count(debug_backtrace(@constant('DEBUG_BACKTRACE_IGNORE_ARGS')))-3) . $r;
# not it_html::Q(); we dont wanna load it_html in ultraclassloader debugging
$title = htmlspecialchars(it_debug::backtrace(array('skiplevels' => 1)), ENT_COMPAT, "ISO-8859-1"); # skip this func as well as ED()/EDX()
if ($p['html'])
return "$r
\n";
else
return $ansiok || $p['short'] || EDC('edplain') ? "$r\n" : "\u{2588}\u{258c}" . preg_replace("#\n#", "\n\u{2588} ", "$r") . "\n";
}
/**
* Return short stackdump
* @param $p['levels'] number of stack levels to return (default: 0 = all)
* @param $p['skiplevels'] number of stack levels to omit
* @param $p['skipfiles'] regular expression of filenames to omit
* @param $p['trace'] Stack trace to compact
*/
static function backtrace($p = array())
{
$frames = $p['trace'] ?: ($p['format'] ? array_slice(debug_backtrace(0), $p['skiplevels']) : null);
if ($p['format'] == "long")
{
foreach ($frames as $frame)
if ($tracesize < 100000 && ($tracesize += strlen(print_r($frame, true))) < 100000) # save mem
$frames[] = $frame;
$result = $frames ? print_r($frames, true) . "\n" : null;
}
else if ($p['format'] == "medium")
{
foreach ($frames as $frame)
{
$locations[] = basename($frame['file']) . ":" . $frame['line'];
$argstrings = [];
foreach ($frame['args'] as $arg)
{
$t = trim(it::replace(['^array \(\s*' => "[", ',\n\)$' => "]", " +" => " ", "\n" => ""], var_export($arg, true)), " ,");
$argstrings[] = strlen($t) < 80 ? $t : it::replace(["(.{0,60} |.{0,60}).*" => '$1'], $t) . "..." . (is_array($arg) ? "]" : (is_object($arg) ? "}" :""));
}
$allargs = join(", ", $argstrings);
if ($frame['type'] == "->" || $frame['type'] == "::")
$funcs[] = $frame['class'] . $frame['type'] . $frame['function'] . "($allargs)";
else
$funcs[] = $frame['function'] . "($allargs)";
$maxlen = max(it::map('strlen', $locations));
}
foreach ($locations as $idx => $location)
$result .= str_pad($location, $maxlen + 2) . $funcs[$idx] . "\n";
}
else
{
foreach (self::debug_backtrace($p) as $call)
{
$fn = $call['file'];
$fn = (it::match('auto_prepend', $fn) ? basename(dirname(dirname($fn))) . "/" : (it::match('/(cgi|bin)/', $fn) ? basename(dirname($fn)) . "/" : "")) . basename($fn);
if ($fn)
$result[] = $fn . ":" . $call['line'];
}
$result = implode(" ", (array)$result);
}
return $result;
}
static function set($debug_string)
{
foreach (preg_split('/[.,]/', $debug_string) as $ultrad)
{
$ultravar = preg_split('/[-=:]/', $ultrad, 2);
$GLOBALS["debug_$ultravar[0]"] = isset($ultravar[1]) ? $ultravar[1] : 1;
}
# keep debug parameters in subrequests
$_SERVER['ULTRAHOSTNAME'] = it::replace(['^\.+' => '', '([^.])\.*$' => '\1.'], $debug_string) . $_SERVER['ULTRAHOSTNAME'];
}
}
?>