Files
web-discuz/uc_server/model/base.php
2025-06-27 21:04:18 +08:00

607 lines
18 KiB
PHP
Executable File

<?php
/*
[UCenter] (C)2001-2099 Comsenz Inc.
This is NOT a freeware, use is subject to license terms
$Id: base.php 1167 2014-11-03 03:06:21Z hypowang $
*/
!defined('IN_UC') && exit('Access Denied');
class base {
var $sid;
var $time;
var $onlineip;
var $db;
var $view;
var $settings;
var $cache;
var $_CACHE;
var $app;
var $user;
var $lang;
var $input;
function __construct() {
$this->base();
}
function base() {
require_once UC_ROOT.'./model/var.php';
base_var::bind($this);
if(empty($this->time)) {
$this->init_var();
$this->init_db();
$this->init_cache();
$this->init_app();
$this->init_user();
$this->init_template();
$this->init_note();
$this->init_mail();
}
}
function init_var() {
$this->time = time();
$this->onlineip = $_SERVER['REMOTE_ADDR'];
if (!defined('UC_ONLYREMOTEADDR') || (defined('UC_ONLYREMOTEADDR') && !constant('UC_ONLYREMOTEADDR'))) {
require_once UC_ROOT.'./lib/ucip.class.php';
if(defined('UC_IPGETTER') && !empty(constant('UC_IPGETTER'))) {
$s = defined('UC_IPGETTER_'.strtoupper(constant('UC_IPGETTER'))) ? (is_string(constant('UC_IPGETTER_'.strtoupper(constant('UC_IPGETTER')))) ? unserialize(constant('UC_IPGETTER_'.strtoupper(constant('UC_IPGETTER')))) : constant('UC_IPGETTER_'.strtoupper(constant('UC_IPGETTER')))) : array();
$c = 'ucip_getter_'.strtolower(constant('UC_IPGETTER'));
require_once UC_ROOT.'./lib/'.$c.'.class.php';
$r = $c::get($s);
$this->onlineip = ucip::validate_ip($r) ? $r : $this->onlineip;
} else if (isset($_SERVER['HTTP_CLIENT_IP']) && ucip::validate_ip($_SERVER['HTTP_CLIENT_IP'])) {
$this->onlineip = $_SERVER['HTTP_CLIENT_IP'];
} elseif(isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
if (strpos($_SERVER['HTTP_X_FORWARDED_FOR'], ",") > 0) {
$exp = explode(",", $_SERVER['HTTP_X_FORWARDED_FOR']);
$this->onlineip = ucip::validate_ip(trim($exp[0])) ? $exp[0] : $this->onlineip;
} else {
$this->onlineip = ucip::validate_ip($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $this->onlineip;
}
}
}
define('FORMHASH', $this->formhash());
$_GET['page'] = max(1, intval(getgpc('page')));
include_once UC_ROOT.'./view/default/main.lang.php';
$this->lang = &$lang;
}
function init_cache() {
$this->settings = $this->cache('settings');
$this->cache['apps'] = $this->cache('apps');
if(PHP_VERSION > '5.1') {
$timeoffset = intval($this->settings['timeoffset'] / 3600);
@date_default_timezone_set('Etc/GMT'.($timeoffset > 0 ? '-' : '+').(abs($timeoffset)));
}
}
function init_input($getagent = '', $secureoperation = true) {
$input = getgpc('input', 'R');
if($input) {
$input = $this->authcode($input, 'DECODE', $this->app['authkey']);
parse_str($input, $this->input);
$this->input = daddslashes($this->input, 1, TRUE);
$agent = $getagent ? $getagent : $this->input['agent'];
if($secureoperation && !$this->settings['insecureoperation'] && (getgpc('m') != $this->input['m'] || getgpc('a') != $this->input['a'] || getgpc('appid') != $this->input['appid'])) {
exit('Access denied for operation changed');
} elseif($this->input('frontend') == 1 && !((getgpc('m') == 'user' && in_array(getgpc('a'), array('uploadavatar', 'rectavatar'))) || getgpc('m') == 'pm_client')) {
exit('Access denied for operation changed');
} elseif(($getagent && $getagent != $this->input['agent']) || (!$getagent && md5($_SERVER['HTTP_USER_AGENT']) != $agent)) {
exit('Access denied for agent changed');
} elseif($this->time - $this->input('time') > 3600) {
exit('Authorization has expired');
}
}
if(empty($this->input)) {
exit('Invalid input');
}
}
function init_db() {
require_once UC_ROOT.'lib/dbi.class.php';
$this->db = new ucserver_db();
$this->db->connect(UC_DBHOST, UC_DBUSER, UC_DBPW, UC_DBNAME, UC_DBCHARSET, UC_DBCONNECT, UC_DBTABLEPRE);
}
function init_app() {
$appid = intval(getgpc('appid'));
$appid && $this->app = $this->cache['apps'][$appid];
}
function init_user() {
if(isset($_COOKIE['uc_auth'])) {
@list($uid, $username, $agent) = explode('|', $this->authcode($_COOKIE['uc_auth'], 'DECODE', ($this->input ? $this->app['appauthkey'] : UC_KEY)));
if($agent != md5($_SERVER['HTTP_USER_AGENT'])) {
$this->setcookie('uc_auth', '');
} else {
@$this->user['uid'] = $uid;
@$this->user['username'] = $username;
}
}
}
function init_template() {
$charset = UC_CHARSET;
require_once UC_ROOT.'lib/template.class.php';
$this->view = new template();
$this->view->assign('dbhistories', $this->db->histories);
$this->view->assign('charset', $charset);
$this->view->assign('dbquerynum', $this->db->querynum);
$this->view->assign('user', $this->user);
}
function init_note() {
if($this->note_exists() && !getgpc('inajax')) {
$this->load('note');
$_ENV['note']->send();
}
}
function init_mail() {
if($this->mail_exists() && !getgpc('inajax')) {
$this->load('mail');
$_ENV['mail']->send();
}
}
function authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) {
$ckey_length = 4;
$key = md5($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($operation == 'DECODE') {
if(((int)substr($result, 0, 10) == 0 || (int)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 page($num, $perpage, $curpage, $mpurl) {
$multipage = '';
$mpurl .= strpos($mpurl, '?') ? '&' : '?';
if($num > $perpage) {
$page = 10;
$offset = 2;
$pages = @ceil($num / $perpage);
if($page > $pages) {
$from = 1;
$to = $pages;
} else {
$from = $curpage - $offset;
$to = $from + $page - 1;
if($from < 1) {
$to = $curpage + 1 - $from;
$from = 1;
if($to - $from < $page) {
$to = $page;
}
} elseif($to > $pages) {
$from = $pages - $page + 1;
$to = $pages;
}
}
$multipage = ($curpage - $offset > 1 && $pages > $page ? '<a href="'.$mpurl.'page=1" class="first"'.$ajaxtarget.'>1 ...</a>' : '').
($curpage > 1 && !$simple ? '<a href="'.$mpurl.'page='.($curpage - 1).'" class="prev"'.$ajaxtarget.'>&lsaquo;&lsaquo;</a>' : '');
for($i = $from; $i <= $to; $i++) {
$multipage .= $i == $curpage ? '<strong>'.$i.'</strong>' :
'<a href="'.$mpurl.'page='.$i.($ajaxtarget && $i == $pages && $autogoto ? '#' : '').'"'.$ajaxtarget.'>'.$i.'</a>';
}
$multipage .= ($curpage < $pages && !$simple ? '<a href="'.$mpurl.'page='.($curpage + 1).'" class="next"'.$ajaxtarget.'>&rsaquo;&rsaquo;</a>' : '').
($to < $pages ? '<a href="'.$mpurl.'page='.$pages.'" class="last"'.$ajaxtarget.'>... '.$realpages.'</a>' : '').
(!$simple && $pages > $page && !$ajaxtarget ? '<kbd><input type="text" name="custompage" size="3" onkeydown="if(event.keyCode==13) {window.location=\''.$mpurl.'page=\'+this.value; return false;}" /></kbd>' : '');
$multipage = $multipage ? '<div class="pages">'.(!$simple ? '<em>&nbsp;'.$num.'&nbsp;</em>' : '').$multipage.'</div>' : '';
}
return $multipage;
}
function page_get_start($page, $ppp, $totalnum) {
$totalpage = ceil($totalnum / $ppp);
$page = max(1, min($totalpage, intval($page)));
return ($page - 1) * $ppp;
}
function load($model, $base = NULL, $release = '') {
$base = $base ? $base : $this;
if(empty($_ENV[$model])) {
$release = !$release ? RELEASE_ROOT : $release;
if(file_exists(UC_ROOT.$release."model/$model.php")) {
require_once UC_ROOT.$release."model/$model.php";
} else {
require_once UC_ROOT."model/$model.php";
}
$modelname = $model.'model';
$_ENV[$model] = new $modelname($base);
}
return $_ENV[$model];
}
function get_setting($k = array(), $decode = FALSE) {
$return = array();
$sqladd = $k ? "WHERE k IN (".$this->implode($k).")" : '';
$settings = $this->db->fetch_all("SELECT * FROM ".UC_DBTABLEPRE."settings $sqladd");
if(is_array($settings)) {
foreach($settings as $arr) {
$return[$arr['k']] = $decode ? unserialize($arr['v']) : $arr['v'];
}
}
return $return;
}
function set_setting($k, $v, $encode = FALSE) {
$v = is_array($v) || $encode ? addslashes(serialize($v)) : $v;
$this->db->query("REPLACE INTO ".UC_DBTABLEPRE."settings SET k='$k', v='$v'");
}
function message($message, $redirect = '', $type = 0, $vars = array()) {
include_once UC_ROOT.'view/default/messages.lang.php';
if(isset($lang[$message])) {
$message = $lang[$message] ? str_replace(array_keys($vars), array_values($vars), $lang[$message]) : $message;
}
$this->view->assign('message', $message);
if($redirect != 'BACK' && !preg_match('/^https?:\/\//is', $redirect) && strpos($redirect, 'sid=') === FALSE) {
if(strpos($redirect, '?') === FALSE) {
$redirect .= '?sid='.$this->sid;
} else {
$redirect .= '&sid='.$this->sid;
}
}
$this->view->assign('redirect', $redirect);
if($type == 0) {
$this->view->display('message');
} elseif($type == 1) {
$this->view->display('message_client');
}
exit;
}
function formhash() {
return substr(md5(substr($this->time, 0, -4).UC_KEY), 16);
}
function submitcheck() {
return @getgpc('formhash', 'P') == FORMHASH ? true : false;
}
function date($time, $type = 3) {
$format[] = $type & 2 ? (!empty($this->settings['dateformat']) ? $this->settings['dateformat'] : 'Y-n-j') : '';
$format[] = $type & 1 ? (!empty($this->settings['timeformat']) ? $this->settings['timeformat'] : 'H:i') : '';
return gmdate(implode(' ', $format), $time + $this->settings['timeoffset']);
}
function implode($arr) {
return "'".implode("','", (array)$arr)."'";
}
function set_home($uid, $dir = '.') {
$uid = sprintf("%09d", $uid);
$dir1 = substr($uid, 0, 3);
$dir2 = substr($uid, 3, 2);
$dir3 = substr($uid, 5, 2);
!is_dir($dir.'/'.$dir1) && mkdir($dir.'/'.$dir1, 0777) && @touch($dir.'/'.$dir1.'/index.htm');
!is_dir($dir.'/'.$dir1.'/'.$dir2) && mkdir($dir.'/'.$dir1.'/'.$dir2, 0777) && @touch($dir.'/'.$dir1.'/'.$dir2.'/index.htm');
!is_dir($dir.'/'.$dir1.'/'.$dir2.'/'.$dir3) && mkdir($dir.'/'.$dir1.'/'.$dir2.'/'.$dir3, 0777) && @touch($dir.'/'.$dir1.'/'.$dir2.'/'.$dir3.'/index.htm');
}
function get_home($uid) {
$uid = sprintf("%09d", $uid);
$dir1 = substr($uid, 0, 3);
$dir2 = substr($uid, 3, 2);
$dir3 = substr($uid, 5, 2);
return $dir1.'/'.$dir2.'/'.$dir3;
}
function get_avatar($uid, $size = 'big', $type = '') {
$size = in_array($size, array('big', 'middle', 'small')) ? $size : 'big';
$uid = abs(intval($uid));
$uid = sprintf("%09d", $uid);
$dir1 = substr($uid, 0, 3);
$dir2 = substr($uid, 3, 2);
$dir3 = substr($uid, 5, 2);
$typeadd = $type == 'real' ? '_real' : '';
return $dir1.'/'.$dir2.'/'.$dir3.'/'.substr($uid, -2).$typeadd."_avatar_$size.jpg";
}
function &cache($cachefile) {
if(!isset($this->_CACHE[$cachefile])) {
$cachepath = UC_DATADIR.'./cache/'.$cachefile.'.php';
if(!file_exists($cachepath)) {
$this->load('cache');
$_ENV['cache']->updatedata($cachefile);
} else {
include_once $cachepath;
$this->_CACHE[$cachefile] = $_CACHE[$cachefile];
}
}
return $this->_CACHE[$cachefile];
}
function input($k) {
if($k == 'uid') {
if(is_array($this->input[$k])) {
foreach ($this->input[$k] as $value) {
if(!preg_match("/^[0-9]+$/", $value)) {
return NULL;
}
}
} elseif(!preg_match("/^[0-9]+$/", $this->input[$k])) {
return NULL;
}
}
return isset($this->input[$k]) ? (is_array($this->input[$k]) ? $this->input[$k] : trim($this->input[$k])) : NULL;
}
function serialize($s, $htmlon = 0) {
if(file_exists(UC_ROOT.RELEASE_ROOT.'./lib/xml.class.php')) {
include_once UC_ROOT.RELEASE_ROOT.'./lib/xml.class.php';
} else {
include_once UC_ROOT.'./lib/xml.class.php';
}
return xml_serialize($s, $htmlon);
}
function unserialize($s) {
if(file_exists(UC_ROOT.RELEASE_ROOT.'./lib/xml.class.php')) {
include_once UC_ROOT.RELEASE_ROOT.'./lib/xml.class.php';
} else {
include_once UC_ROOT.'./lib/xml.class.php';
}
return xml_unserialize($s);
}
function cutstr($string, $length, $dot = ' ...') {
if(strlen($string) <= $length) {
return $string;
}
$string = str_replace(array('&amp;', '&quot;', '&lt;', '&gt;'), array('&', '"', '<', '>'), $string);
$strcut = '';
if(strtolower(UC_CHARSET) == 'utf-8') {
$n = $tn = $noc = 0;
while($n < strlen($string)) {
$t = ord($string[$n]);
if($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) {
$tn = 1; $n++; $noc++;
} elseif(194 <= $t && $t <= 223) {
$tn = 2; $n += 2; $noc += 2;
} elseif(224 <= $t && $t < 239) {
$tn = 3; $n += 3; $noc += 2;
} elseif(240 <= $t && $t <= 247) {
$tn = 4; $n += 4; $noc += 2;
} elseif(248 <= $t && $t <= 251) {
$tn = 5; $n += 5; $noc += 2;
} elseif($t == 252 || $t == 253) {
$tn = 6; $n += 6; $noc += 2;
} else {
$n++;
}
if($noc >= $length) {
break;
}
}
if($noc > $length) {
$n -= $tn;
}
$strcut = substr($string, 0, $n);
} else {
for($i = 0; $i < $length; $i++) {
$strcut .= ord($string[$i]) > 127 ? $string[$i].$string[++$i] : $string[$i];
}
}
$strcut = str_replace(array('&', '"', '<', '>'), array('&amp;', '&quot;', '&lt;', '&gt;'), $strcut);
return $strcut.$dot;
}
function setcookie($key, $value, $life = 0, $httponly = false) {
(!defined('UC_COOKIEPATH')) && define('UC_COOKIEPATH', '/');
(!defined('UC_COOKIEDOMAIN')) && define('UC_COOKIEDOMAIN', '');
if($value === '' || $life < 0) {
$value = '';
$life = -1;
}
$life = $life > 0 ? $this->time + $life : ($life < 0 ? $this->time - 31536000 : 0);
$path = $httponly && PHP_VERSION < '5.2.0' ? UC_COOKIEPATH."; HttpOnly" : UC_COOKIEPATH;
$secure = is_https();
if(PHP_VERSION < '5.2.0') {
setcookie($key, $value, $life, $path, UC_COOKIEDOMAIN, $secure);
} else {
setcookie($key, $value, $life, $path, UC_COOKIEDOMAIN, $secure, $httponly);
}
}
function note_exists() {
$noteexists = $this->db->result_first("SELECT value FROM ".UC_DBTABLEPRE."vars WHERE name='noteexists'");
if(empty($noteexists)) {
return FALSE;
} else {
return TRUE;
}
}
function mail_exists() {
$mailexists = $this->db->result_first("SELECT value FROM ".UC_DBTABLEPRE."vars WHERE name='mailexists'");
if(empty($mailexists)) {
return FALSE;
} else {
return TRUE;
}
}
function dstripslashes($string) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = $this->dstripslashes($val);
}
} else {
$string = stripslashes($string);
}
return $string;
}
function detectescape($basepath, $relativepath) {
if(!file_exists($basepath)) {
return FALSE;
}
if(!file_exists($basepath . $relativepath)) {
$relativepath = dirname($relativepath);
if(!file_exists($basepath . $relativepath)) {
return FALSE;
}
}
$real_base = realpath($basepath);
$real_target = realpath($basepath . $relativepath);
if(strcmp($real_target, $real_base) !== 0 && strpos($real_target, $real_base . DIRECTORY_SEPARATOR) !== 0) {
return FALSE;
}
return TRUE;
}
function random($length, $numeric = 0) {
$seed = base_convert(md5(microtime().$_SERVER['DOCUMENT_ROOT']), 16, $numeric ? 10 : 35);
$seed = $numeric ? (str_replace('0', '', $seed).'012340567890') : ($seed.'zZ'.strtoupper($seed));
if($numeric) {
$hash = '';
} else {
$hash = chr(rand(1, 26) + rand(0, 1) * 32 + 64);
$length--;
}
$max = strlen($seed) - 1;
for($i = 0; $i < $length; $i++) {
$hash .= $seed[mt_rand(0, $max)];
}
return $hash;
}
function secrandom($length, $numeric = 0, $strong = false) {
$chars = $numeric ? array('A','B','+','/','=') : array('+','/','=');
$num_find = str_split('CDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz');
$num_repl = str_split('01234567890123456789012345678901234567890123456789');
$isstrong = false;
if(function_exists('random_bytes')) {
$isstrong = true;
$random_bytes = function($length) {
return random_bytes($length);
};
} elseif(extension_loaded('mcrypt') && function_exists('mcrypt_create_iv')) {
$isstrong = true;
$random_bytes = function($length) {
$rand = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM);
if ($rand !== false && strlen($rand) === $length) {
return $rand;
} else {
return false;
}
};
} elseif(extension_loaded('openssl') && function_exists('openssl_random_pseudo_bytes')) {
$isstrong = true;
$random_bytes = function($length) {
$rand = openssl_random_pseudo_bytes($length, $secure);
if($secure === true) {
return $rand;
} else {
return false;
}
};
}
if(!$isstrong) {
return $strong ? false : random($length, $numeric);
}
$retry_times = 0;
$return = '';
while($retry_times < 128) {
$getlen = $length - strlen($return); // 33% extra bytes
$bytes = $random_bytes(max($getlen, 12));
if($bytes === false) {
return false;
}
$bytes = str_replace($chars, '', base64_encode($bytes));
$return .= substr($bytes, 0, $getlen);
if(strlen($return) == $length) {
return $numeric ? str_replace($num_find, $num_repl, $return) : $return;
}
$retry_times++;
}
}
function generate_key($length = 32) {
$random = $this->secrandom($length);
$info = md5($_SERVER['SERVER_SOFTWARE'].$_SERVER['SERVER_NAME'].$_SERVER['SERVER_ADDR'].$_SERVER['SERVER_PORT'].$_SERVER['HTTP_USER_AGENT'].time());
$return = '';
for($i=0; $i<$length; $i++) {
$return .= $random[$i].$info[$i];
}
return $return;
}
}
?>