599 lines
20 KiB
PHP
599 lines
20 KiB
PHP
<?php
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/*
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[UCenter] (C)2001-2009 Comsenz Inc.
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This is NOT a freeware, use is subject to license terms
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$Id: upgrade1.php 12117 2008-01-11 06:25:08Z heyond $
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*/
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define("IN_UC", TRUE);
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define('UC_ROOT', realpath('..').'/');
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$version_old = 'UCenter 1.0';
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$version_new = 'UCenter 1.5';
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$lock_file = UC_ROOT.'./data/upgrade.lock';
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require UC_ROOT.'./data/config.inc.php';
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if(function_exists("mysql_connect")) {
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require UC_ROOT.'./lib/db.class.php';
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} else {
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require UC_ROOT.'./lib/dbi.class.php';
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}
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error_reporting(7);
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@set_magic_quotes_runtime(0);
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$PHP_SELF = htmlspecialchars($_SERVER['PHP_SELF'] ? $_SERVER['PHP_SELF'] : $_SERVER['SCRIPT_NAME']);
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$action = getgpc('action');
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$forward = getgpc('forward');
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$sql = <<<EOT
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DROP TABLE IF EXISTS uc_events;
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ALTER TABLE uc_members ADD COLUMN secques CHAR(8) NOT NULL DEFAULT '';
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ALTER TABLE uc_notelist ADD KEY dateline (dateline);
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ALTER TABLE uc_applications ADD COLUMN viewprourl CHAR( 255 ) NOT NULL AFTER `ip` ;
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ALTER TABLE uc_applications ADD COLUMN apifilename CHAR( 30 ) NOT NULL DEFAULT 'uc.php' AFTER `ip` ;
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ALTER TABLE uc_pms ADD COLUMN fromappid SMALLINT(6) UNSIGNED NOT NULL DEFAULT '0';
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ALTER TABLE uc_applications CHANGE authkey authkey CHAR( 255 ) NOT NULL;
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DROP TABLE IF EXISTS uc_mailqueue;
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CREATE TABLE IF NOT EXISTS uc_mailqueue (
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mailid int(10) unsigned NOT NULL auto_increment,
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touid mediumint(8) unsigned NOT NULL default '0',
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tomail varchar(32) NOT NULL,
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frommail varchar(100) NOT NULL,
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subject varchar(255) NOT NULL,
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message text NOT NULL,
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charset varchar(15) NOT NULL,
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htmlon tinyint(1) NOT NULL default '0',
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level tinyint(1) NOT NULL default '1',
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dateline int(10) unsigned NOT NULL default '0',
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failures tinyint(3) unsigned NOT NULL default '0',
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appid smallint(6) unsigned NOT NULL default '0',
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PRIMARY KEY (`mailid`),
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KEY appid (appid),
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KEY level (level,failures)
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) TYPE=MyISAM AUTO_INCREMENT=1 ;
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REPLACE INTO uc_settings (k, v) VALUES ('maildefault', 'username@21cn.com');
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REPLACE INTO uc_settings (k, v) VALUES ('mailsend', '1');
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REPLACE INTO uc_settings (k, v) VALUES ('mailserver', 'smtp.21cn.com');
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REPLACE INTO uc_settings (k, v) VALUES ('mailport', '25');
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REPLACE INTO uc_settings (k, v) VALUES ('mailauth', '1');
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REPLACE INTO uc_settings (k, v) VALUES ('mailfrom', 'UCenter <username@21cn.com>');
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REPLACE INTO uc_settings (k, v) VALUES ('mailauth_username', 'username@21cn.com');
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REPLACE INTO uc_settings (k, v) VALUES ('mailauth_password', 'password');
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REPLACE INTO uc_settings (k, v) VALUES ('maildelimiter', '0');
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REPLACE INTO uc_settings (k, v) VALUES ('mailusername', '1');
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REPLACE INTO uc_settings (k, v) VALUES ('mailsilent', '1');
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REPLACE INTO uc_settings (k, v) VALUES ('pmlimit1day','100');
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REPLACE INTO uc_settings (k, v) VALUES ('pmfloodctrl','15');
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REPLACE INTO uc_settings (k, v) VALUES ('pmcenter','1');
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REPLACE INTO uc_settings (k, v) VALUES ('sendpmseccode','1');
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REPLACE INTO uc_settings (k, v) VALUES ('pmsendregdays','0');
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EOT;
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if(file_exists($lock_file) && $action != 'upgsecques') {
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showheader();
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showerror('升级被锁定，应该是已经升级过了，如果已经恢复数据请手动删除<br />'.str_replace(UC_ROOT, '', $lock_file).'<br />之后再来刷新页面');
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showfooter();
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}
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if(!$action) {
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showheader();
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?>
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<p>本程序用于升级 UCenter 1.0 到 UCenter 1.5</p>
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<p>运行本升级程序之前，请确认已经上传 UCenter 1.5 的全部文件和目录</p>
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<p>强烈建议您升级之前备份数据库资料</p>
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<p><a href="<?php echo $PHP_SELF;?>?action=db">如果您已确认完成上面的步骤,请点这里升级</a></p>
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<?php
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showfooter();
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} elseif($action == 'db') {
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@touch(UC_ROOT.'./data/install.lock');
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@unlink(UC_ROOT.'./install/index.php');
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$db = new db;
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$db->connect(UC_DBHOST, UC_DBUSER, UC_DBPW, UC_DBNAME, UC_DBCHARSET);
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runquery($sql);
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dir_clear(UC_ROOT.'./data/view');
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dir_clear(UC_ROOT.'./data/cache');
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if(is_dir(UC_ROOT.'./plugin/setting')) {
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dir_clear(UC_ROOT.'./plugin/setting');
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@unlink(UC_ROOT.'./plugin/setting/index.htm');
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@rmdir(UC_ROOT.'./plugin/setting');
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}
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//note 升级uc_applications.viewprourl
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$db->query("UPDATE ".UC_DBTABLEPRE."applications SET viewprourl='/space.php?uid=%s'");
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$query = $db->query("SELECT * FROM ".UC_DBTABLEPRE."applications");
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while($app = $db->fetch_array($query)) {
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if(authcode($app['authkey'], 'DECODE', UC_MYKEY)) continue;
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$authkey = authcode($app['authkey'], 'ENCODE', UC_MYKEY);
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$appid = $app['appid'];
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$db->query("UPDATE ".UC_DBTABLEPRE."applications SET authkey='$authkey' WHERE appid='$appid'");
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}
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header("Location: upgrade2.php?action=pm&forward=".urlencode($forward));
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} elseif($action == 'pm') {
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showheader();
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echo "<h4>处理短消息数据</h4>";
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$db = new db;
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$db->connect(UC_DBHOST, UC_DBUSER, UC_DBPW, UC_DBNAME, UC_DBCHARSET);
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$total = getgpc('total');
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$start = intval(getgpc('start'));
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$limit = 1000;
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if(!$total) {
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$total = $db->result_first("SELECT COUNT(*) FROM ".UC_DBTABLEPRE."pms WHERE related=0");
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}
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if(!$total || $total <= $start) {
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$db->query("REPLACE INTO ".UC_DBTABLEPRE."settings (k, v) VALUES('version', '1.5.0')");//note 记录数据库版本
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@touch($lock_file);
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if($forward) {
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echo "<br /><br /><br /><a href=\"$forward\">浏览器会自动跳转页面，无需人工干预。除非当您的浏览器长时间没有自动跳转时，请点击这里</a>";
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echo "<script>setTimeout(\"redirect('$forward');\", 1250);</script>";
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} else {
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echo "升级完成。";
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}
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} else {
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$query = $db->query("SELECT * FROM ".UC_DBTABLEPRE."pms WHERE related=0 LIMIT $start, $limit");
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while($data = $db->fetch_array($query)) {
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$data['msgfrom'] = addslashes($data['msgfrom']);
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$data['subject'] = addslashes($data['subject']);
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$data['message'] = addslashes($data['message']);
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$db->query("REPLACE INTO ".UC_DBTABLEPRE."pms SET msgfrom='$data[msgfrom]',
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msgfromid='$data[msgfromid]',msgtoid='$data[msgtoid]',folder='$data[folder]',new='$data[new]',subject='$data[subject]',
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dateline='$data[dateline]',message='$data[message]',delstatus='$data[delstatus]',related='".time()."'", 'SILENT');
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}
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$end = $start + $limit;
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echo "短消息数据已处理 $start / $total ...";
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$url_forward = "upgrade2.php?action=pm&start=$end&total=$total&forward=".urlencode($forward);
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echo "<br /><br /><br /><a href=\"$url_forward\">浏览器会自动跳转页面，无需人工干预。除非当您的浏览器长时间没有自动跳转时，请点击这里</a>";
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echo "<script>setTimeout(\"redirect('$url_forward');\", 1250);</script>";
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}
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showfooter();
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} elseif($action == 'upgsecques') {
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$lock_file = UC_ROOT.'./data/upgsecques.lock';
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if(file_exists($lock_file)) {
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showheader();
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showerror('升级被锁定，应该是已经升级过了安全提问，如果已经恢复数据请手动删除<br />'.str_replace(UC_ROOT, '', $lock_file).'<br />之后再来刷新页面');
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}
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$uc_authcode = getgpc('uc_authcode', 'C');
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if(empty($uc_authcode) || authcode($uc_authcode, 'DECODE', UC_KEY) != UC_FOUNDERPW) {
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$uc_founderpw = getgpc('uc_founderpw');
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if(empty($uc_founderpw) || UC_FOUNDERPW != md5(md5($uc_founderpw).UC_FOUNDERSALT)) {
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echo '<form method="post">';
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echo '请输入UCenter创始人密码:<input type="password" name="uc_founderpw" /> <input type="submit" value="提交" />';
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exit;
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} else {
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setcookie('uc_authcode', authcode(UC_FOUNDERPW, 'ENCODE', UC_KEY));
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header("Location: upgrade2.php?action=upgsecques");
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exit;
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}
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}
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if(!is_dir(UC_ROOT.'./data/upgsecques')) {
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showheader();
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showerror('请先将论坛下 ./forumdata/upgsecques 目录上传到UCenter 目录 ./data/ 下，之后<a href="javascript:location.reload();" target="_self">刷新此页面</a>');
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}
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$num = getgpc('num');
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$num = $num ? intval($num) : 1;
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$random = getgpc('random');
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if(empty($random)) {
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$dir = UC_ROOT.'./data/upgsecques';
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$directory = dir($dir);
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while($entry = $directory->read()) {
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if(preg_match('/^secques_(\w+)_\d+/', $entry, $match)) {
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break;
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}
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}
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$random = $match[1];
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};
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$dump_file = UC_ROOT.'./data/upgsecques/secques_'.$random.'_'.$num.'.sql';
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if(!file_exists($dump_file)) {//note 升级完毕
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@touch($lock_file);
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dir_clear(UC_ROOT.'./data/upgsecques');
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setcookie('uc_authcode', '');
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showheader();
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echo '安全提问升级完成，感谢您使用本程序';
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} else {
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showheader();
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$sql = file_get_contents($dump_file);
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$db = new db;
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$db->connect(UC_DBHOST, UC_DBUSER, UC_DBPW, UC_DBNAME, UC_DBCHARSET);
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runquery($sql);
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$num++;
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echo "安全提问正在导入";
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$url_forward = "upgrade2.php?action=upgsecques&num=$num&random=$random";
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echo "<br /><br /><br /><a href=\"$url_forward\">浏览器会自动跳转页面，无需人工干预。除非当您的浏览器长时间没有自动跳转时，请点击这里</a>";
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echo "<script>setTimeout(\"redirect('$url_forward');\", 1250);</script>";
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}
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showfooter();
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}
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function dir_clear($dir) {
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$directory = dir($dir);
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while($entry = $directory->read()) {
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$filename = $dir.'/'.$entry;
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if(is_file($filename)) {
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@unlink($filename);
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}
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}
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@touch($dir.'/index.htm');
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$directory->close();
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}
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function random($length, $numeric = 0) {
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PHP_VERSION < '4.2.0' && mt_srand((double)microtime() * 1000000);
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if($numeric) {
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$hash = sprintf('%0'.$length.'d', mt_rand(0, pow(10, $length) - 1));
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} else {
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$hash = '';
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$chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
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$max = strlen($chars) - 1;
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for($i = 0; $i < $length; $i++) {
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$hash .= $chars[mt_rand(0, $max)];
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}
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}
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return $hash;
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}
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function generate_key() {
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$random = random(32);
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$info = md5($_SERVER['SERVER_SOFTWARE'].$_SERVER['SERVER_NAME'].$_SERVER['SERVER_ADDR'].$_SERVER['SERVER_PORT'].$_SERVER['HTTP_USER_AGENT'].time());
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$return = '';
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for($i=0; $i<64; $i++) {
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$p = intval($i/2);
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$return[$i] = $i % 2 ? $random[$p] : $info[$p];
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}
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return implode('', $return);
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}
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function createtable($sql, $dbcharset) {
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$type = strtoupper(preg_replace("/^\s*CREATE TABLE\s+.+\s+\(.+?\).*(ENGINE|TYPE)\s*=\s*([a-z]+?).*$/isU", "\\2", $sql));
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$type = in_array($type, array('MYISAM', 'HEAP')) ? $type : 'MYISAM';
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return preg_replace("/^\s*(CREATE TABLE\s+.+\s+\(.+?\)).*$/isU", "\\1", $sql).
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(mysql_get_server_info() > '4.1' ? " ENGINE=$type default CHARSET=".UC_DBCHARSET : " TYPE=$type");
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}
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function runquery($query) {
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global $db;
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$query = str_replace("\r", "\n", str_replace(' uc_', ' '.UC_DBTABLEPRE, $query));
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$expquery = explode(";\n", $query);
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foreach($expquery as $sql) {
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$sql = trim($sql);
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if($sql == '' || $sql[0] == '#') continue;
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if(strtoupper(substr($sql, 0, 12)) == 'CREATE TABLE') {
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$db->query(createtable($sql, UC_DBCHARSET));
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} elseif (strtoupper(substr($sql, 0, 11)) == 'ALTER TABLE') {
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runquery_altertable($sql);
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} else {
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$db->query($sql);
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}
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}
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}
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function getgpc($k, $var='R') {
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switch($var) {
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case 'G': $var = &$_GET; break;
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case 'P': $var = &$_POST; break;
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case 'C': $var = &$_COOKIE; break;
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case 'R': $var = &$_REQUEST; break;
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}
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return isset($var[$k]) ? $var[$k] : NULL;
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}
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function showheader() {
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global $version_old, $version_new;
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$charset = UC_CHARSET;
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print <<< EOT
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=$charset" />
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<title>UCenter 升级程序( $version_old >> $version_new)</title>
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<meta name="MSSmartTagsPreventParsing" content="TRUE">
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<meta http-equiv="MSThemeCompatible" content="Yes">
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<style>
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a:visited {color: #FF0000; text-decoration: none}
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a:link {color: #FF0000; text-decoration: none}
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a:hover {color: #FF0000; text-decoration: underline}
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body,table,td {color: #3a4273; font-family: Tahoma, verdana, arial; font-size: 12px; line-height: 20px; scrollbar-base-color: #e3e3ea; scrollbar-arrow-color: #5c5c8d}
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input {color: #085878; font-family: Tahoma, verdana, arial; font-size: 12px; background-color: #3a4273; color: #ffffff; scrollbar-base-color: #e3e3ea; scrollbar-arrow-color: #5c5c8d}
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.install {font-family: Arial, Verdana; font-size: 14px; font-weight: bold; color: #000000}
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.header {font: 12px Tahoma, Verdana; font-weight: bold; background-color: #3a4273 }
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.header td {color: #ffffff}
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.red {color: red; font-weight: bold}
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.bg1 {background-color: #e3e3ea}
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.bg2 {background-color: #eeeef6}
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</style>
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</head>
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<body bgcolor="#3A4273" text="#000000">
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<script type="text/javascript">
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function redirect(url) {
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window.location=url;
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}
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</script>
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<table width="95%" height="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#FFFFFF" align="center">
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<tr>
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<td>
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<table width="98%" border="0" cellspacing="0" cellpadding="0" align="center">
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<tr>
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<td class="install" height="30" valign="bottom"><font color="#FF0000">>></font>
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UCenter 升级程序( $version_old >> $version_new)</td>
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</tr>
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<tr>
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<td>
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<hr noshade align="center" width="100%" size="1">
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</td>
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</tr>
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<tr>
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<td align="center">
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<b>本升级程序只能从 $version_old 升级到 $version_new ，运行之前，请确认已经上传所有文件，并做好数据备份<br />
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升级当中有任何问题请访问技术支持站点 <a href="http://www.discuz.net" target="_blank">http://www.discuz.net</a></b>
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</td>
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</tr>
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<tr>
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<td>
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<hr noshade align="center" width="100%" size="1">
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</td>
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</tr>
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<tr><td>
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EOT;
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}
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function showfooter() {
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echo <<< EOT
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</td></tr></table></td></tr>
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<tr><td height="100%"> </td></tr>
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</table>
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</body>
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</html>
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EOT;
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exit();
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}
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function showerror($message, $break = 1) {
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echo '<br /><br />'.$message.'<br /><br />';
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if($break) showfooter();
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}
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function redirect($url) {
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$url = $url.(strstr($url, '&') ? '&' : '?').'t='.time();
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echo <<< EOT
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<hr size=1>
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<script language="JavaScript">
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function redirect() {
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window.location.replace('$url');
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}
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setTimeout('redirect();', 1000);
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</script>
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<br /><br />
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>><a href="$url">浏览器会自动跳转页面，无需人工干预。除非当您的浏览器长时间没有自动跳转时，请点击这里</a>
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<br /><br />
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EOT;
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showfooter();
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}
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function get_table_columns($table) {
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global $db;
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$tablecolumns = array();
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if($db->version() > '4.1') {
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$query = $db->query("SHOW FULL COLUMNS FROM $table", 'SILENT');
|
|
} else {
|
|
$query = $db->query("SHOW COLUMNS FROM $table", 'SILENT');
|
|
}
|
|
while($field = @$db->fetch_array($query)) {
|
|
$tablecolumns[$field['Field']] = $field;
|
|
}
|
|
return $tablecolumns;
|
|
}
|
|
|
|
function parse_alter_table_sql($s) {
|
|
$arr = array();
|
|
preg_match("/ALTER TABLE (\w+)/i", $s, $m);
|
|
$tablename = substr($m[1], strlen(UC_DBTABLEPRE));
|
|
preg_match_all("/add column (\w+) ([^\n;]+)/is", $s, $add);
|
|
preg_match_all("/drop column (\w+)([^\n;]*)/is", $s, $drop);
|
|
preg_match_all("/change (\w+) ([^\n;]+)/is", $s, $change);
|
|
preg_match_all("/add key ([^\n;]+)/is", $s, $keys);
|
|
preg_match_all("/add unique ([^\n;]+)/is", $s, $uniques);
|
|
foreach($add[1] as $k => $colname) {
|
|
$attr = preg_replace("/(.+),$/", "\\1", trim($add[2][$k]));
|
|
$arr[] = array($tablename, 'ADD', $colname, $attr);
|
|
}
|
|
foreach($drop[1] as $k => $colname) {
|
|
$attr = preg_replace("/(.+),$/", "\\1", trim($drop[2][$k]));
|
|
$arr[] = array($tablename, 'DROP', $colname, $attr);
|
|
}
|
|
foreach($change[1] as $k => $colname) {
|
|
$attr = preg_replace("/(.+),$/", "\\1", trim($change[2][$k]));
|
|
$arr[] = array($tablename, 'CHANGE', $colname, $attr);
|
|
}
|
|
foreach($keys[1] as $k => $colname) {
|
|
$attr = preg_replace("/(.+),$/", "\\1", trim($keys[0][$k]));
|
|
$arr[] = array($tablename, 'INDEX', '', $attr);
|
|
}
|
|
foreach($uniques[1] as $k => $colname) {
|
|
$attr = preg_replace("/(.+),$/", "\\1", trim($uniques[0][$k]));
|
|
$arr[] = array($tablename, 'INDEX', '', $attr);
|
|
}
|
|
return $arr;
|
|
}
|
|
|
|
function runquery_altertable($sql) {
|
|
global $db;
|
|
$tablepre = UC_DBTABLEPRE;
|
|
$dbcharset = UC_DBCHARSET;
|
|
|
|
$updatesqls = parse_alter_table_sql($sql);
|
|
|
|
foreach($updatesqls as $updatesql) {
|
|
$successed = TRUE;
|
|
|
|
if(is_array($updatesql) && !empty($updatesql[0])) {
|
|
|
|
list($table, $action, $field, $sql) = $updatesql;
|
|
|
|
if(empty($field) && !empty($sql)) {
|
|
|
|
$query = "ALTER TABLE {$tablepre}{$table} ";
|
|
if($action == 'INDEX') {
|
|
$successed = $db->query("$query $sql", "SILENT");
|
|
} elseif ($action == 'UPDATE') {
|
|
$successed = $db->query("UPDATE {$tablepre}{$table} SET $sql", 'SILENT');
|
|
}
|
|
|
|
} elseif($tableinfo = get_table_columns($tablepre.$table)) {
|
|
|
|
$fieldexist = isset($tableinfo[$field]) ? 1 : 0;
|
|
|
|
$query = "ALTER TABLE {$tablepre}{$table} ";
|
|
|
|
if($action == 'MODIFY') {
|
|
|
|
$query .= $fieldexist ? "MODIFY $field $sql" : "ADD $field $sql";
|
|
$successed = $db->query($query, 'SILENT');
|
|
|
|
} elseif($action == 'CHANGE') {
|
|
|
|
$field2 = trim(substr($sql, 0, strpos($sql, ' ')));
|
|
$field2exist = isset($tableinfo[$field2]);
|
|
|
|
if($fieldexist && ($field == $field2 || !$field2exist)) {
|
|
$query .= "CHANGE $field $sql";
|
|
} elseif($fieldexist && $field2exist) {
|
|
$db->query("ALTER TABLE {$tablepre}{$table} DROP $field2", 'SILENT');
|
|
$query .= "CHANGE $field $sql";
|
|
} elseif(!$fieldexist && $fieldexist2) {
|
|
$db->query("ALTER TABLE {$tablepre}{$table} DROP $field2", 'SILENT');
|
|
$query .= "ADD $sql";
|
|
} elseif(!$fieldexist && !$field2exist) {
|
|
$query .= "ADD $sql";
|
|
}
|
|
$successed = $db->query($query);
|
|
|
|
} elseif($action == 'ADD') {
|
|
|
|
$query .= $fieldexist ? "CHANGE $field $field $sql" : "ADD $field $sql";
|
|
$successed = $db->query($query);
|
|
|
|
} elseif($action == 'DROP') {
|
|
if($fieldexist) {
|
|
$successed = $db->query("$query DROP $field", "SILENT");
|
|
}
|
|
$successed = TRUE;
|
|
}
|
|
|
|
} else {
|
|
|
|
$successed = 'TABLE NOT EXISTS';
|
|
|
|
}
|
|
}
|
|
}
|
|
return $successed;
|
|
}
|
|
|
|
function upg_pms() {
|
|
global $db;
|
|
$query = $db->query("SELECT * FROM ".UC_DBTABLEPRE."pms WHERE related=0");
|
|
while($data = $db->fetch_array($query)) {
|
|
$data['msgfrom'] = addslashes($data['msgfrom']);
|
|
$data['subject'] = addslashes($data['subject']);
|
|
$data['message'] = addslashes($data['message']);
|
|
$db->query("REPLACE INTO ".UC_DBTABLEPRE."pms SET msgfrom='$data[msgfrom]',
|
|
msgfromid='$data[msgfromid]',msgtoid='$data[msgtoid]',folder='$data[folder]',new='$data[new]',subject='$data[subject]',
|
|
dateline='$data[dateline]',message='$data[message]',delstatus='$data[delstatus]',related='".time()."'", 'SILENT');
|
|
}
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
}
|
|
|
|
?>
|