📄 func.inc.php

📁 Discuz功能源码（开源）
💻 PHP
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				}
			}
			if($v['type'] == 'checkbox') {
				$value = '1';
			}

			if($k == 'ucurl' && isset($uc_info_transfer['ucapi'])) {
				$value = $uc_info_transfer['ucapi'];
			} elseif($k == 'ucpw' && isset($uc_info_transfer['ucfounderpw'])) {
				$value = $uc_info_transfer['ucfounderpw'];
			}

			show_setting($k, $key.'['.$k.']', $value, $v['type'], isset($error_msg[$key][$k]) ? $key.'_'.$k.'_invalid' : '');
		}

		if($is_first) {
			$is_first = 0;
		}
	}
	show_setting('', 'submitname', 'new_step', 'submit');
	show_setting('end');
	show_footer();
}

function show_license() {
	global $self, $uchidden, $step;
	$next = $step + 1;
	if(VIEW_OFF) {

		show_msg('license_contents', lang('license'), 1);

	} else {

		show_header();

		$license = str_replace('  ', '&nbsp; ', lang('license'));
		$lang_agreement_yes = lang('agreement_yes');
		$lang_agreement_no = lang('agreement_no');
		echo <<<EOT
</div>
<div class="main" style="margin-top:-123px;">
	<div class="licenseblock">$license</div>
	<div class="btnbox marginbot">
		<form method="get" action="index.php">
		<input type="hidden" name="step" value="$next">
		<input type="hidden" name="uchidden" value="$uchidden">
		<input type="submit" name="submit" value="{$lang_agreement_yes}" style="padding: 2px">&nbsp;
		<input type="button" name="exit" value="{$lang_agreement_no}" style="padding: 2px" onclick="javascript: window.close(); return false;">
		</form>
	</div>
EOT;

		show_footer();

	}
}

function transfer_ucinfo(&$post) {
	global $uchidden;
	if(isset($post['ucapi']) && isset($post['ucfounderpw'])) {
		$arr = array(
			'ucapi' => $post['ucapi'],
			'ucfounderpw' => $post['ucfounderpw']
			);
		$uchidden = urlencode(serialize($arr));
	} else {
		$uchidden = '';
	}
}

if(!function_exists('file_put_contents')) {
	function file_put_contents($filename, $s) {
		$fp = @fopen($filename, 'w');
		@fwrite($fp, $s);
		@fclose($fp);
		return TRUE;
	}
}

function createtable($sql) {
	$type = strtoupper(preg_replace("/^\s*CREATE TABLE\s+.+\s+\(.+?\).*(ENGINE|TYPE)\s*=\s*([a-z]+?).*$/isU", "\\2", $sql));
	$type = in_array($type, array('MYISAM', 'HEAP')) ? $type : 'MYISAM';
	return preg_replace("/^\s*(CREATE TABLE\s+.+\s+\(.+?\)).*$/isU", "\\1", $sql).
	(mysql_get_server_info() > '4.1' ? " ENGINE=$type DEFAULT CHARSET=".DBCHARSET : " TYPE=$type");
}

function dir_writeable($dir) {
	$writeable = 0;
	if(!is_dir($dir)) {
		@mkdir($dir, 0777);
	}
	if(is_dir($dir)) {
		if($fp = @fopen("$dir/test.txt", 'w')) {
			@fclose($fp);
			@unlink("$dir/test.txt");
			$writeable = 1;
		} else {
			$writeable = 0;
		}
	}
	return $writeable;
}

function dir_clear($dir) {
	global $lang;
	showjsmessage($lang['clear_dir'].' '.str_replace(ROOT_PATH, '', $dir));
	$directory = dir($dir);
	while($entry = $directory->read()) {
		$filename = $dir.'/'.$entry;
		if(is_file($filename)) {
			@unlink($filename);
		}
	}
	$directory->close();
	@touch($dir.'/index.htm');
}

function show_header() {
	define('SHOW_HEADER', TRUE);
	global $step;
	$version = SOFT_VERSION;
	$release = SOFT_RELEASE;
	$install_lang = lang(INSTALL_LANG);
	$title = lang('title_install');
	$charset = CHARSET;
	echo <<<EOT
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=$charset" />
<title>$title</title>
<link rel="stylesheet" href="style.css" type="text/css" media="all" />
<script type="text/javascript">
	function $(id) {
		return document.getElementById(id);
	}

	function showmessage(message) {
		$('notice').value += message + "\\r\\n";
	}
</script>
<meta content="Comsenz Inc." name="Copyright" />
</head>
<div class="container">
	<div class="header">
		<h1>$title</h1>
		<span>V$version $install_lang $release</span>
EOT;

	$step > 0 && show_step($step);
}

function show_footer($quit = true) {

	echo <<<EOT
		<div class="footer">&copy;2001 - 2008 <a href="http://www.comsenz.com/">Comsenz</a> Inc.</div>
	</div>
</div>
</body>
</html>
EOT;
	$quit && exit();
}

function loginit($logfile) {
	global $lang;
	showjsmessage($lang['init_log'].' '.$logfile);
	if($fp = @fopen('./forumdata/logs/'.$logfile.'.php', 'w')) {
		fwrite($fp, '<'.'?PHP exit(); ?'.">\n");
		fclose($fp);
	}
}

function showjsmessage($message) {
	if(VIEW_OFF) return;
	echo '<script type="text/javascript">showmessage(\''.addslashes($message).' \');</script>'."\r\n";
	flush();
	ob_flush();
}

function random($length) {
	$hash = '';
	$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
	$max = strlen($chars) - 1;
	PHP_VERSION < '4.2.0' && mt_srand((double)microtime() * 1000000);
	for($i = 0; $i < $length; $i++) {
		$hash .= $chars[mt_rand(0, $max)];
	}
	return $hash;
}

function redirect($url) {

	echo "<script>".
	"function redirect() {window.location.replace('$url');}\n".
	"setTimeout('redirect();', 0);\n".
	"</script>";
	exit();

}

function get_onlineip() {
	$onlineip = '';
	if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) {
		$onlineip = getenv('HTTP_CLIENT_IP');
	} elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
		$onlineip = getenv('HTTP_X_FORWARDED_FOR');
	} elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
		$onlineip = getenv('REMOTE_ADDR');
	} elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
		$onlineip = $_SERVER['REMOTE_ADDR'];
	}
	return $onlineip;
}

function config_edit() {
	extract($GLOBALS, EXTR_SKIP);

	$configfile = @file_get_contents(CONFIG);
	$configfile = trim($configfile);
	$configfile = substr($configfile, -2) == '?>' ? substr($configfile, 0, -2) : $configfile;
	$configfile = preg_replace("/[$]dbhost\s*\=\s*[\"'].*?[\"'];/is", "\$dbhost = '$dbhost';", $configfile);
	$configfile = preg_replace("/[$]dbuser\s*\=\s*[\"'].*?[\"'];/is", "\$dbuser = '$dbuser';", $configfile);
	$configfile = preg_replace("/[$]dbpw\s*\=\s*[\"'].*?[\"'];/is", "\$dbpw = '$dbpw';", $configfile);
	$configfile = preg_replace("/[$]dbname\s*\=\s*[\"'].*?[\"'];/is", "\$dbname = '$dbname';", $configfile);
	$configfile = preg_replace("/[$]adminemail\s*\=\s*[\"'].*?[\"'];/is", "\$adminemail = '$adminemail';", $configfile);
	$configfile = preg_replace("/[$]tablepre\s*\=\s*[\"'].*?[\"'];/is", "\$tablepre = '$tablepre';", $configfile);
	$configfile = preg_replace("/[$]cookiepre\s*\=\s*[\"'].*?[\"'];/is", "\$cookiepre = '".random(3)."_';", $configfile);
	$configfile = preg_replace("/[$]forumfounders\s*\=\s*[\"'].*?[\"'];/is", "\$forumfounders = '$adminuser[uid]';", $configfile);

	@file_put_contents(CONFIG, $configfile);
}

function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {

	$ckey_length = 4;	// 随机密钥长度 取值 0-32;
				// 加入随机密钥，可以令密文无任何规律，即便是原文和密钥完全相同，加密结果也会每次不同，增大破解难度。
				// 取值越大，密文变动规律越大，密文变化 = 16 的 $ckey_length 次方
				// 当此值为 0 时，则不产生随机密钥

	$key = md5($key ? $key : UC_KEY);
	$keya = md5(substr($key, 0, 16));
	$keyb = md5(substr($key, 16, 16));
	$keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';

	$cryptkey = $keya.md5($keya.$keyc);
	$key_length = strlen($cryptkey);

	$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string;
	$string_length = strlen($string);

	$result = '';
	$box = range(0, 255);

	$rndkey = array();
	for($i = 0; $i <= 255; $i++) {
		$rndkey[$i] = ord($cryptkey[$i % $key_length]);
	}

	for($j = $i = 0; $i < 256; $i++) {
		$j = ($j + $box[$i] + $rndkey[$i]) % 256;
		$tmp = $box[$i];
		$box[$i] = $box[$j];
		$box[$j] = $tmp;
	}

	for($a = $j = $i = 0; $i < $string_length; $i++) {
		$a = ($a + 1) % 256;
		$j = ($j + $box[$a]) % 256;
		$tmp = $box[$a];
		$box[$a] = $box[$j];
		$box[$j] = $tmp;
		$result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256]));
	}

	if($operation == 'DECODE') {
		if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) {
			return substr($result, 26);
		} else {
			return '';
		}
	} else {
		return $keyc.str_replace('=', '', base64_encode($result));
	}

}

function generate_key() {
	$random = random(32);
	$info = md5($_SERVER['SERVER_SOFTWARE'].$_SERVER['SERVER_NAME'].$_SERVER['SERVER_ADDR'].$_SERVER['SERVER_PORT'].$_SERVER['HTTP_USER_AGENT'].time());
	$return = '';
	for($i=0; $i<64; $i++) {
		$p = intval($i/2);
		$return[$i] = $i % 2 ? $random[$p] : $info[$p];
	}
	return implode('', $return);
}

function show_install() {
	if(VIEW_OFF) return;
?>
<script type="text/javascript">
function showmessage(message) {
	document.getElementById('notice').value += message + "\r\n";
}
function initinput() {
	window.location='../';
}
</script>
	<div class="main">
		<div class="btnbox"><textarea name="notice" style="width: 80%;"  readonly="readonly" id="notice"></textarea></div>
		<div class="btnbox marginbot">
	<input type="button" name="submit" value="<?=lang('install_in_processed')?>" disabled style="height: 25" id="laststep" onclick="initinput()">
	</div>
<?php
}

function runquery($sql) {
	global $lang, $tablepre, $db;

	if(!isset($sql) || empty($sql)) return;

	$sql = str_replace("\r", "\n", str_replace(' '.ORIG_TABLEPRE, ' '.$tablepre, $sql));
	$ret = array();
	$num = 0;
	foreach(explode(";\n", trim($sql)) as $query) {
		$ret[$num] = '';
		$queries = explode("\n", trim($query));
		foreach($queries as $query) {
			$ret[$num] .= (isset($query[0]) && $query[0] == '#') || (isset($query[1]) && isset($query[1]) && $query[0].$query[1] == '--') ? '' : $query;
		}
		$num++;
	}
	unset($sql);

	foreach($ret as $query) {
		$query = trim($query);
		if($query) {

			if(substr($query, 0, 12) == 'CREATE TABLE') {
				$name = preg_replace("/CREATE TABLE ([a-z0-9_]+) .*/is", "\\1", $query);
				showjsmessage(lang('create_table').' '.$name.' ... '.lang('succeed'));
				$db->query(createtable($query));
			} else {
				$db->query($query);
			}
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