1 files changed, 180 insertions, 0 deletions
diff --git a/debug.class b/debug.class
new file mode 100644
index 0000000..b4cb764
--- /dev/null
+++ b/debug.class
@@ -0,0 +1,180 @@
+<?php
+/*
+**	$Id$
+**
+**	debug.class - Debug Functionality for ITools
+**
+**	ITools - the Internet Tools Library
+**
+**	Copyright (C) 1995-2003 by the ITools Authors.
+**	This program is free software; you can redistribute it and/or
+**	modify it under the terms of either the GNU General Public License
+**	or the GNU Lesser General Public License, as published by the Free
+**	Software Foundation. See http://www.gnu.org/licenses/ for details.
+*/
+
+/**
+ * Debug functions
+ */
+class it_debug
+{
+	var $level;
+	var $email;
+	var $subject;
+	var $from;
+
+/**
+ * Constructor
+ * @param $level Debug level. All debug() calls with a level <= $level are shown.
+ * @param $email E-mail address for mail() and internal_error() functions.
+ * @param $subject Subject of e-mail messages
+ * @see ::debug(), ::mail(), ::internal_error()
+ */
+function it_debug($level=0, $email="itools@gna.ch", $subject=null)
+{
+	$this->level = isset($GLOBALS['debug_level']) ? $GLOBALS['debug_level'] : $level;
+	$this->email = $email;
+	$this->subject = isset($subject) ? $subject : 'ITools error ('.$_SERVER['HTTP_HOST'].') on '.getenv('HOSTNAME');
+	$this->from = 'From: "it_debug '.getenv('HOSTNAME').'" <itools@'.$_SERVER['SERVER_NAME'].'>';
+}
+
+
+/**
+ * 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();
+	}
+}
+
+
+/**
+ * Send an e-mail to this debug object's maintainer
+ * @param $text Text of mail message
+ * @param $level Debug level - Mail is only sent if this is <= the global debug level
+ */
+function mail($text, $level = 0)
+{
+	if ($this->level >= $level)
+	{
+		if ($this->email)
+			mail($this->email, $this->subject, $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']."\n".$_SERVER['SCRIPT_FILENAME']."\n\n".$text, $this->from);
+		else
+			error_log("missing debug email addr: " . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] . " " . substr($text,0,200));
+	}
+}
+
+
+/**
+ * Display error message or maintenance page and terminate processing. Mail message and vardump to maintainer
+ * @param $text Message to display
+ * @return This function never returns
+ */
+function internal_error($text)
+{
+	$text = "Host: ".getenv('HOSTNAME')."\nPage: //{$_SERVER['HTTP_HOST']}{$_SERVER['REQUEST_URI']}\nFile: {$_SERVER['SCRIPT_FILENAME']}\n\n$text\n\n";
+
+	if ($this->email)
+		mail($this->email, $this->subject, $text.'$_REQUEST: '.print_r($_REQUEST, true). "\nStack:\n" . print_r(debug_backtrace(), true), $this->from);
+	else
+		error_log("missing debug email addr: " . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] . " " . substr($text,0,200));
+
+	/* If we have a maintenance display page show this instead of error */
+	if (file_exists($_SERVER['DOCUMENT_ROOT'].'/maintenance.html'))
+	{
+		header("Location: http://{$_SERVER['HTTP_HOST']}/maintenance.html");
+		exit;
+	}
+	else
+		fail("<pre>Internal Error:\n\n$text");
+}
+
+
+/**
+ * Function to return dump of all it's parameters,
+ * normally used through D(), ED(), EDX() in support.pinc
+ * @param Varargs of mixed stuff to dump
+ * @return String representation of dump
+ */
+function dump()
+{
+	$stack = debug_backtrace();
+	$line = $stack[2]['line'];
+	$file = $stack[2]['file'];
+
+	if (!$_SERVER['REMOTE_ADDR'] && preg_match('/class/', $file))
+		$line--;
+
+	if (ereg('(csv|txt|gif|jpg)', $_SERVER['PHP_SELF']) || !ereg('Mozilla', $_SERVER['HTTP_USER_AGENT']))
+		$plain = 1;
+	else if ($_SERVER['REMOTE_ADDR'])
+	{
+		$blue = "<span style='color:#00c'>";
+		$noblue = "</span>";
+	}
+	else if (getenv('USER') != 'cschneid') # ;)
+	{
+		$blue = "\033[34m";
+		$noblue = "\033[m";
+		$red = "\033[31m";
+		$nored = "\033[m";
+	}
+
+	if (!isset($GLOBALS['it_debug::dump source'][$file]))
+		$GLOBALS['it_debug::dump source'][$file] = file($file);
+
+	$src = $GLOBALS['it_debug::dump source'][$file][$line-1];
+
+	$paramlist = preg_match('/(D|ED|EDC|EDX)\s*\(\s*([^)]+)/i', $src, $parts) ? $parts[2] : "";
+	$argnames = preg_split('/\s*,\s*/', $paramlist);
+
+	foreach (func_get_args() as $arg)
+	{
+		$var = array_shift($argnames);
+		if ($arg==='_ignoreme')
+			continue;
+
+		$item = gettype($arg) == 'resource' ? trim(print_r($arg, true)) : trim(var_export($arg, true));
+		$item = preg_replace("#(=>?)\s*\n\s*(array|class)#", '$1 $2', $item); # array( and class on same line as key
+		$item = preg_replace('#array \(\s+([^({,;]+),\s+\)#', 'array( $1 )', $item); # 1-element 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+var \$_(.|\n)*?;\s*\n#', "", $item);
+		$item = "$red$item$nored";
+
+		if (isset($_SERVER['REMOTE_ADDR']) && !$plain)
+			$item = htmlspecialchars($item);
+
+		if (ereg('^[\'"]', $var))
+			$r .= "$item ";
+		else {
+			$var = "$blue$var=$noblue";
+			$r .= preg_match("/\n/", $item) ? "\n$var$item\n" : "$var$item ";
+		}
+	}
+
+	if ($GLOBALS['debug_indent'])
+		$r = str_repeat("  ", count(debug_backtrace())-3) . $r;
+
+	if (isset($_SERVER['REMOTE_ADDR']) && !$plain)
+		 return "<pre style='color:#c00; background-color:white; margin:0px'>$r</pre>\n";
+	else
+		 return "$r\n";
+}
+
+function backtrace()
+{
+	foreach (array_slice(debug_backtrace(), 1) as $call)
+		$line .= basename($call['file']) . ":" . $call['line'] . " ";
+	return $line;
+}
+
+}
+?>