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[ ±¾Ìû×îºóÓÉ 044003 ÓÚ 2007-10-25 18:22 ±à¼­ ]

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<?php

// Downgrade Discuz! Board to 5.5.0 from 6.0.0 Final

error_reporting(E_ERROR | E_WARNING | E_PARSE);
@set_magic_quotes_runtime(0);

@set_time_limit(1000);

define('IN_DISCUZ', TRUE);
define('DISCUZ_ROOT', './');

$version_old = 'Discuz! 6.0.0 ¥¿¦¡ª©';
$version_new = 'Discuz! 5.5.0';
$timestamp = time();

@include(DISCUZ_ROOT."./config.inc.php");
@include(DISCUZ_ROOT."./include/db_mysql.class.php");

header("Content-Type: text/html; charset=$charset");
showheader();

if(empty($dbcharset) && in_array(strtolower($charset), array('gbk', 'big5', 'utf-8'))) {
        $dbcharset = str_replace('-', '', $charset);
}

if(PHP_VERSION < '4.1.0') {
        $_GET = &$HTTP_GET_VARS;
        $_POST = &$HTTP_POST_VARS;
        $_COOKIE = &$HTTP_COOKIE_VARS;
        $_SERVER = &$HTTP_SERVER_VARS;
        $_ENV = &$HTTP_ENV_VARS;
        $_FILES = &$HTTP_POST_FILES;
}

$action = ($_POST['action']) ? $_POST['action'] : $_GET['action'];
$step = $_GET['step'];
$start = isset($_GET['start']) ? intval($_GET['start']) : 0;

$downgrade1 = <<<EOT
DELETE FROM cdb_settings WHERE variable='tagstatus';
DELETE FROM cdb_settings WHERE variable='hottags';
DELETE FROM cdb_settings WHERE variable='viewthreadtags';

UPDATE cdb_settings SET value=value/12 WHERE variable='maxsigrows';

DELETE FROM cdb_settings WHERE variable='mail';
DELETE FROM cdb_settings WHERE variable='watermarktext';
DELETE FROM cdb_settings WHERE variable='watermarkminwidth';
DELETE FROM cdb_settings WHERE variable='watermarkminheight';

REPLACE INTO cdb_settings VALUES ('ec_id','');
REPLACE INTO cdb_settings VALUES ('ec_securitycode','');
REPLACE INTO cdb_settings VALUES ('ec_commision','0');

DELETE FROM cdb_settings WHERE variable='inviteconfig';
DELETE FROM cdb_settings WHERE variable='rewritecompatible';
DELETE FROM cdb_settings WHERE variable='userdateformat';
DELETE FROM cdb_settings WHERE variable='regname';
DELETE FROM cdb_settings WHERE variable='reglinkname';
DELETE FROM cdb_settings WHERE variable='activitytype';

DELETE FROM cdb_settings WHERE variable='tradeimagewidth';
DELETE FROM cdb_settings WHERE variable='tradeimageheight';
DELETE FROM cdb_settings WHERE variable='customauthorinfo';
DELETE FROM cdb_settings WHERE variable='ec_credit';

DELETE FROM cdb_settings WHERE variable='imagelib';
DELETE FROM cdb_settings WHERE variable='imageimpath';

DELETE FROM cdb_settings WHERE variable='historyposts';

DELETE FROM cdb_settings WHERE variable='zoomstatus';

DELETE FROM cdb_settings WHERE variable='postno';
DELETE FROM cdb_settings WHERE variable='postnocustom';

DELETE FROM cdb_settings WHERE variable='maxbiotradesize';
DELETE FROM cdb_settings WHERE variable='tradetypes';

DELETE FROM cdb_settings WHERE variable='baidusitemap';
DELETE FROM cdb_settings WHERE variable='baidusitemap_life';
DELETE FROM cdb_settings WHERE variable='google';

REPLACE INTO cdb_crons VALUES ('','1','system','¨C¶g¥DÃD§ó·s','pushthreads_weekly.inc.php','0','1170600452','7','-1','7','0');
EOT;

$downgradetable = array(

        array('forums', 'DROP', 'allowmediacode', ""),
        array('forums', 'MODIFY', 'allowpostspecial', "tinyint(1) NOT NULL DEFAULT '15'"),

        array('forumfields', 'DROP', 'keywords', ""),
        array('forumfields', 'DROP', 'formulaperm', ""),
        array('forumfields', 'DROP', 'modrecommend', ""),
        array('forumfields', 'DROP', 'tradetypes', ""),
        array('forumfields', 'DROP', 'typemodels', ""),

        array('myposts', 'DROP', 'special', ""),

        array('mythreads', 'DROP', 'special', ""),

        array('threadtypes', 'DROP', 'special', ""),
        array('threadtypes', 'DROP', 'template', ""),

        array('smilies', 'CHANGE', 'displayorder', "displayorder tinyint(1) NOT NULL DEFAULT '0'"),
        array('smilies', 'DROP', 'typeid', ""),

        array('usergroups', 'DROP', 'allowpostdebate', ""),
        array('usergroups', 'DROP', 'tradestick', ""),
        array('usergroups', 'DROP', 'allowinvite', ""),
        array('usergroups', 'DROP', 'allowmailinvite', ""),
        array('usergroups', 'DROP', 'maxinvitenum', ""),
        array('usergroups', 'DROP', 'maxinviteday', ""),
        array('usergroups', 'DROP', 'inviteprice', ""),
        array('usergroups', 'DROP', 'allowpostvideo', ""),
        array('usergroups', 'ADD', 'tradetaxtype', "tinyint(1) NOT NULL DEFAULT '1'"),
        array('usergroups', 'ADD', 'tradetaxs', "smallint(6) unsigned NOT NULL DEFAULT '0'"),

        array('trades', 'DROP', 'pid', ""),
        array('trades', 'DROP', 'typeid', ""),
        array('trades', 'DROP', 'aid', ""),
        array('trades', 'DROP', 'displayorder', ""),
        array('trades', 'DROP', 'costprice', ""),
        array('trades', 'MODIFY', 'price', "decimal(6,2) NOT NULL"),
        array('trades', 'INDEX', '', "DROP PRIMARY KEY"),
        array('trades', 'INDEX', '', "ADD PRIMARY KEY (tid)"),
        array('trades', 'INDEX', '', "DROP INDEX displayorder"),
        array('trades', 'INDEX', '', "DROP INDEX sellertrades"),
        array('trades', 'INDEX', '', "DROP INDEX typeid"),

        array('tradelog', 'DROP', 'pid', "INT(10) UNSIGNED NOT NULL AFTER tid"),
        array('tradelog', 'DROP', 'offline', "TINYINT(1) NOT NULL default '0'"),
        array('tradelog', 'DROP', 'buyername', "CHAR(50) NOT NULL"),
        array('tradelog', 'DROP', 'buyerzip', "CHAR(10) NOT NULL"),
        array('tradelog', 'DROP', 'buyerphone', "CHAR(20) NOT NULL"),
        array('tradelog', 'DROP', 'buyermobile', "CHAR(20) NOT NULL"),
        array('tradelog', 'DROP', 'transport', "TINYINT(1) NOT NULL default '0'"),
        array('tradelog', 'DROP', 'transportfee', "smallint(6) unsigned NOT NULL"),
        array('tradelog', 'DROP', 'baseprice', "decimal(8,2) NOT NULL"),
        array('tradelog', 'DROP', 'discount', "TINYINT(1) NOT NULL default '0'"),
        array('tradelog', 'DROP', 'ratestatus', "TINYINT(1) NOT NULL default '0'"),
        array('tradelog', 'MODIFY', 'price', "decimal(6,2) NOT NULL DEFAULT '0.00'"),
        array('tradelog', 'INDEX', '', "DROP INDEX tid"),
        array('tradelog', 'INDEX', '', "ADD INDEX tid (tid)"),
        array('tradelog', 'INDEX', '', "DROP INDEX pid"),

        array('memberfields', 'DROP', 'buyercredit', ""),
        array('memberfields', 'DROP', 'sellercredit', ""),

        array('profilefields', 'INDEX', '', "DROP INDEX available"),

        array('posts', 'DROP', 'status', ""),

        array('admingroups', 'DROP', 'allowbanpost', ""),

        array('members', 'MODIFY', 'extgroupids', "char(60) NOT NULL DEFAULT ''"),
        array('members', 'MODIFY', 'email', "char(50) NOT NULL DEFAULT ''"),
        array('members', 'MODIFY', 'dateformat', "char(10) NOT NULL DEFAULT ''"),
        array('members', 'INDEX', '', "DROP INDEX groupid"),

        array('promotions', 'CHANGE', 'uid', "uid mediumint(8) NOT NULL DEFAULT '0'"),

        array('relatedthreads', 'DROP', 'type', ""),
        array('relatedthreads', 'INDEX', '', "DROP PRIMARY KEY , ADD PRIMARY KEY ( tid )"),

        array('threadtypes', 'DROP', 'modelid', ""),
        array('threadtypes', 'DROP', 'expiration', ""),

        array('tradelog', 'DROP', 'buyername', ""),
        array('tradelog', 'DROP', 'buyerzip', ""),
        array('tradelog', 'DROP', 'buyerphone', ""),
        array('tradelog', 'DROP', 'buyermobile', ""),
        array('tradelog', 'DROP', 'message', ""),
        array('tradelog', 'DROP', 'transportfee', ""),

);

$downgrade3 = <<<EOT

DROP TABLE IF EXISTS cdb_blogcaches;
CREATE TABLE cdb_blogcaches (
  uid mediumint(8) unsigned NOT NULL DEFAULT '0',
  variable varchar(10) NOT NULL DEFAULT '',
  `value` text NOT NULL,
  PRIMARY KEY (uid,variable)
) TYPE=MyISAM;

DROP TABLE IF EXISTS cdb_imagetypes;

DROP TABLE IF EXISTS cdb_threadtags;

DROP TABLE IF EXISTS cdb_tags;

DROP TABLE IF EXISTS cdb_debates;

DROP TABLE IF EXISTS cdb_debateposts;

DROP TABLE IF EXISTS cdb_typeoptions;

DROP TABLE IF EXISTS cdb_typeoptionvars;

DROP TABLE IF EXISTS cdb_tradeoptionvars;

DROP TABLE IF EXISTS cdb_typevars;

DROP TABLE IF EXISTS cdb_tradecomments;

DROP TABLE IF EXISTS cdb_invites;

DROP TABLE IF EXISTS cdb_forumrecommend;

DROP TABLE IF EXISTS cdb_caches;

DROP TABLE IF EXISTS cdb_videos;

DROP TABLE IF EXISTS cdb_videotags;

EOT;

$downgrade4 = <<<EOT

DROP TABLE IF EXISTS cdb_searchindex;

DROP TABLE IF EXISTS cdb_typemodels;

DELETE FROM cdb_crons WHERE filename='tags_daily.inc.php';

UPDATE cdb_members SET dateformat='';

EOT;

$downgrade5 = <<<EOT

DELETE FROM cdb_settings WHERE variable='mail';

DELETE FROM cdb_settings WHERE variable='spacedata';
REPLACE INTO cdb_settings VALUES ('spacecachelife','900');
REPLACE INTO cdb_settings VALUES ('spacelimitmythreads','5');
REPLACE INTO cdb_settings VALUES ('spacelimitmyreplies','5');
REPLACE INTO cdb_settings VALUES ('spacelimitmyrewards','5');
REPLACE INTO cdb_settings VALUES ('spacelimitmytrades','5');
REPLACE INTO cdb_settings VALUES ('spacelimitmyblogs','8');
REPLACE INTO cdb_settings VALUES ('spacelimitmyfriends','0');
REPLACE INTO cdb_settings VALUES ('spacelimitmyfavforums','5');
REPLACE INTO cdb_settings VALUES ('spacelimitmyfavthreads','0');
REPLACE INTO cdb_settings VALUES ('spacetextlength','300');

REPLACE INTO cdb_settings (variable, value) VALUES ('seccodedata', 'a:5:{s:16:\"loginfailedcount\";i:0;s:8:\"animator\";i:0;s:10:\"background\";i:1;s:5:\"width\";i:93;s:6:\"height\";i:31;}');

EOT;

$downgrade6 = <<<EOT
DROP TABLE IF EXISTS cdb_styles;
CREATE TABLE cdb_styles (
  styleid smallint(6) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(20) NOT NULL DEFAULT '',
  available tinyint(1) NOT NULL DEFAULT '1',
  templateid smallint(6) unsigned NOT NULL DEFAULT '0',
  PRIMARY KEY (styleid)
) TYPE=MyISAM AUTO_INCREMENT=2;

INSERT INTO cdb_styles VALUES ('1','Àq»{­·®æ','1','1');

DROP TABLE IF EXISTS cdb_stylevars;
CREATE TABLE cdb_stylevars (
  stylevarid smallint(6) unsigned NOT NULL AUTO_INCREMENT,
  styleid smallint(6) unsigned NOT NULL DEFAULT '0',
  variable text NOT NULL,
  substitute text NOT NULL,
  PRIMARY KEY (stylevarid),
  KEY styleid (styleid)
) TYPE=MyISAM AUTO_INCREMENT=52;

INSERT INTO cdb_stylevars VALUES ('1','1','boardimg','logo.gif');
INSERT INTO cdb_stylevars VALUES ('2','1','nobold','0');
INSERT INTO cdb_stylevars VALUES ('3','1','msgfontsize','12px');
INSERT INTO cdb_stylevars VALUES ('4','1','fontsize','12px');
INSERT INTO cdb_stylevars VALUES ('5','1','font','Tahoma, Verdana');
INSERT INTO cdb_stylevars VALUES ('6','1','tablespace','4');
INSERT INTO cdb_stylevars VALUES ('7','1','tablewidth','98%');
INSERT INTO cdb_stylevars VALUES ('8','1','borderwidth','1');
INSERT INTO cdb_stylevars VALUES ('9','1','text','#333333');
INSERT INTO cdb_stylevars VALUES ('10','1','tabletext','#333333');
INSERT INTO cdb_stylevars VALUES ('11','1','catcolor','#FFFFD9');
INSERT INTO cdb_stylevars VALUES ('12','1','headertext','#154BA0');
INSERT INTO cdb_stylevars VALUES ('13','1','headercolor','header_bg.gif');
INSERT INTO cdb_stylevars VALUES ('14','1','bordercolor','#86B9D6');
INSERT INTO cdb_stylevars VALUES ('15','1','link','#154BA0');
INSERT INTO cdb_stylevars VALUES ('16','1','altbg2','#FFFFFF');
INSERT INTO cdb_stylevars VALUES ('17','1','altbg1','#F5FBFF');
INSERT INTO cdb_stylevars VALUES ('18','1','bgcolor','#FFFFFF');
INSERT INTO cdb_stylevars VALUES ('19','1','imgdir','images/default');
INSERT INTO cdb_stylevars VALUES ('20','1','smdir','images/smilies');
INSERT INTO cdb_stylevars VALUES ('21','1','cattext','#92A05A');
INSERT INTO cdb_stylevars VALUES ('22','1','smfontsize','11px');
INSERT INTO cdb_stylevars VALUES ('23','1','smfont','Arial, Tahoma');
INSERT INTO cdb_stylevars VALUES ('24','1','maintablewidth','98%');
INSERT INTO cdb_stylevars VALUES ('25','1','maintablecolor','#FFFFFF');
INSERT INTO cdb_stylevars VALUES ('26','1','innerborderwidth','0');
INSERT INTO cdb_stylevars VALUES ('27','1','innerbordercolor','#D6E0EF');
INSERT INTO cdb_stylevars VALUES ('28','1','bgborder','#BBE9FF');
INSERT INTO cdb_stylevars VALUES ('29','1','inputborder','#7AC4EA');
INSERT INTO cdb_stylevars VALUES ('30','1','mainborder','#154BA0');
INSERT INTO cdb_stylevars VALUES ('31','1','catborder','#DEDEB8');
INSERT INTO cdb_stylevars VALUES ('32','1','lighttext','#666666');
INSERT INTO cdb_stylevars VALUES ('33','1','headermenu','menu_bg.gif');
INSERT INTO cdb_stylevars VALUES ('34','1','postnoticebg','#FDFFF2');
INSERT INTO cdb_stylevars VALUES ('35','1','msgheader','#F3F8D7');
INSERT INTO cdb_stylevars VALUES ('36','1','msgheadertext','#000000');
INSERT INTO cdb_stylevars VALUES ('37','1','msgtext','#FDFFF2');
INSERT INTO cdb_stylevars VALUES ('38','1','headermenutext','#154BA0');
INSERT INTO cdb_stylevars VALUES ('39','1','navtext','#154BA0');
INSERT INTO cdb_stylevars VALUES ('40','1','menubg','#D9EEF9');
INSERT INTO cdb_stylevars VALUES ('41','1','menutext','#154BA0');
INSERT INTO cdb_stylevars VALUES ('42','1','menuhltext','#FFFFFF');
INSERT INTO cdb_stylevars VALUES ('43','1','menuhlbg','#7AC4EA');
INSERT INTO cdb_stylevars VALUES ('44','1','calendartext','#000000');
INSERT INTO cdb_stylevars VALUES ('45','1','calendarexpire','#999999');
INSERT INTO cdb_stylevars VALUES ('46','1','calendarchecked','#FF0000');
INSERT INTO cdb_stylevars VALUES ('47','1','calendartoday','#00BB00');
INSERT INTO cdb_stylevars VALUES ('48','1','msgbigsize','');
INSERT INTO cdb_stylevars VALUES ('49','1','msgsmallsize','');
INSERT INTO cdb_stylevars VALUES ('50','1','frameswitch','frame_switch.gif');
INSERT INTO cdb_stylevars VALUES ('51','1','framebg','frame_bg.gif');
INSERT INTO cdb_stylevars VALUES ('52','1','framebgcolor','#E8F2F7');

DROP TABLE IF EXISTS cdb_templates;
CREATE TABLE cdb_templates (
  templateid smallint(6) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(30) NOT NULL DEFAULT '',
  `directory` varchar(100) NOT NULL DEFAULT '',
  copyright varchar(100) NOT NULL DEFAULT '',
  PRIMARY KEY (templateid)
) TYPE=MyISAM AUTO_INCREMENT=2;

INSERT INTO cdb_templates VALUES ('1','Àq»{¼ÒªO®M¨t','./templates/default','±d²±³Ð·Q¡]¥_¨Ê¡^¬ì§Þ¦³­­¤½¥q');

REPLACE INTO cdb_settings (variable, value) VALUES ('styleid','1');

DELETE FROM cdb_bbcodes WHERE tag='sup';
DELETE FROM cdb_bbcodes WHERE tag='sub';

EOT;

$downgrade7 = <<<EOT

DROP TABLE IF EXISTS cdb_pushedthreads;
CREATE TABLE cdb_pushedthreads (
  id mediumint(8) unsigned NOT NULL,
  tid mediumint(8) unsigned NOT NULL DEFAULT '0',
  `status` tinyint(1) NOT NULL DEFAULT '0',
  dateline int(10) unsigned NOT NULL DEFAULT '0',
  `subject` varchar(80) NOT NULL,
  message text NOT NULL,
  PRIMARY KEY (id),
  KEY displayorder (`status`,dateline)
) TYPE=MyISAM;
DROP TABLE IF EXISTS cdb_campaigns;

DELETE FROM cdb_settings WHERE variable='insenz';

EOT;

$downgrade7 = <<<EOT

DELETE FROM cdb_settings WHERE variable='videoinfo';

DELETE FROM cdb_settings WHERE variable='qihoo';
REPLACE INTO cdb_settings VALUES ('qihoo_adminemail','');
REPLACE INTO cdb_settings VALUES ('qihoo_jammer','1');
REPLACE INTO cdb_settings VALUES ('qihoo_keywords','');
REPLACE INTO cdb_settings VALUES ('qihoo_location','1');
REPLACE INTO cdb_settings VALUES ('qihoo_maxtopics','10');
REPLACE INTO cdb_settings VALUES ('qihoo_relatedthreads','5');
REPLACE INTO cdb_settings VALUES ('qihoo_relatedsort','1');
REPLACE INTO cdb_settings VALUES ('qihoo_searchbox','6');
REPLACE INTO cdb_settings VALUES ('qihoo_status','0');
REPLACE INTO cdb_settings VALUES ('qihoo_summary','1');
REPLACE INTO cdb_settings VALUES ('qihoo_topics','');
REPLACE INTO cdb_settings VALUES ('qihoo_validity','1');

REPLACE INTO cdb_settings (variable, value) VALUES ('rewritestatus', '0');

EOT;

$downgrademsg = array(

        1 => '½×¾Â­°¯Å²Ä 1 ¨B: §R°£°ò¥»³]¸m<br /><br />',
        2 => '½×¾Â­°¯Å²Ä 2 ¨B: ½Õ¾ã½×¾Â¼Æ¾Úªíµ²ºc<br /><br />',
        3 => '½×¾Â­°¯Å²Ä 3 ¨B: §R°£¼Æ¾Úªí<br /><br />',

        4 => '½×¾Â­°¯Å²Ä 4 ¨B: §ó·s³¡¤À¼Æ¾Ú<br /><br />',
        5 => '½×¾Â­°¯Å²Ä 5 ¨B: ­°¯Å¶l¥ó³]¸m<br /><br />',
        6 => '½×¾Â­°¯Å²Ä 6 ¨B: ­°¯Å½×¾Â­·®æ<br /><br />',

        7 => '½×¾Â­°¯Å²Ä 7 ¨B: Insenz¬ÛÃö¼Æ¾Ú­°¯Å<br /><br />',
        8 => '½×¾Â­°¯Å²Ä 8 ¨B: ¨ä¥L¬ÛÃö¼Æ¾Ú­°¯Å<br /><br />',
        9 => '½×¾Â­°¯Å²Ä 9 ¨B: ­°¯Å¥þ³¡§¹²¦<br /><br />',
);

$errormsg = '';
if(!isset($dbhost)) {
        showerror("<span class=error>¨S¦³§ä¨ì config.inc.php ¤å¥ó!</span><br />½Ð½T»{±z¤w¸g¤W¶Ç¤F©Ò¦³ $version_new ¤å¥ó");
} elseif(!$dblink = @mysql_connect($dbhost, $dbuser, $dbpw)) {
        showerror("<span class=error>config.inc.php °t¸m¿ù»~!</span><br />½Ð­×§ï config.inc.php ·í¤¤Ãö©ó¼Æ¾Ú®wªº³]¸m¡AµM«á¤W¶Ç¨ì½×¾Â¥Ø¿ý¡A­«·s¶}©l­°¯Å");
}

@mysql_close($dblink);
$db = new dbstuff;
$db->connect($dbhost, $dbuser, $dbpw, $dbname, $pconnect);

if(!$action) {

        if(!$tableinfo = loadtable('threads')) {
                showerror("<span class=error>µLªk§ä¨ì Discuz! ½×¾Â¼Æ¾Úªí!</span><br />½Ð­×§ï config.inc.php ·í¤¤Ãö©ó¼Æ¾Ú®wªº³]¸m¡AµM«á¤W¶Ç¨ì½×¾Â¥Ø¿ý¡A­«·s¶}©l­°¯Å");
        } elseif($db->version() > '4.1') {
                $old_dbcharset = substr($tableinfo['subject']['Collation'], 0, strpos($tableinfo['subject']['Collation'], '_'));
                if($old_dbcharset <> $dbcharset) {
                        showerror("<span class=error>config.inc.php ¼Æ¾Ú®w¦r²Å¶°³]¸m¿ù»~!</span><br />".
                                "<li>­ì¨Óªº¦r²Å¶°³]¸m¬°¡G$old_dbcharset".
                                "<li>·í«e¨Ï¥Îªº¦r²Å¶°¬°¡G$dbcharset".
                                "<li>«Øij¡G­×§ï config.inc.php¡A ±N¨ä¤¤ªº <b>\$dbcharset = ''</b> ©ÎªÌ <b>\$dbcharset = '$dbcharset'</b> ­×§ï¬°¡G <b>\$dbcharset = '$old_dbcharset'</b>".
                                "<li>­×§ï§¹²¦«á¤W¶Ç config.inc.php¡AµM«á­«·s¶i¦æ­°¯Å"
                        );
                }
        }

        echo <<< EOT
<span class="red">
­°¯Å«e½Ð¥´¶}ÂsÄý¾¹ JavaScript ¤ä«ù,¾ã­Ó¹Lµ{¬O¦Û°Ê§¹¦¨ªº,¤£»Ý¤H¤uÂIÀ»©M¤z¹w.<br />
­°¯Å¤§«e°È¥²³Æ¥÷¼Æ¾Ú®w¸ê®Æ¡A§_«h­°¯Å¥¢±ÑµLªk«ì´_<br /></span><br />
¥¿½Tªº­°¯Å¤èªk¬°:
<ol>
        <li>Ãö³¬­ì¦³½×¾Â,¤W¶Ç $version_new ªº¥þ³¡¤å¥ó©M¥Ø¿ý, Âл\\\\ªA°È¾¹¤Wªº $version_old
        <li>¤W¶Ç­°¯Åµ{§Ç¨ì½×¾Â¥Ø¿ý¤¤¡A<b>­«·s°t¸m¦n config.inc.php</b>
        <li>¹B¦æ¥»µ{§Ç,ª½¨ì¥X²{­°¯Å§¹¦¨ªº´£¥Ü
        <li>¦pªG¤¤³~¥¢±Ñ¡A½Ð¨Ï¥ÎDiscuz!¤u¨ã½c¡]./utilities/tools.php¡^¸Ì­±ªº¼Æ¾Ú«ì´_¤u¨ã«ì´_³Æ¥÷, ¥h°£¿ù»~«á­«·s¹B¦æ¥»µ{§Ç
</ol>
<a href="$PHP_SELF?action=downgrade&step=1"><font size="2" color="red"><b>&gt;&gt;&nbsp;¦pªG±z¤w½T»{§¹¦¨¤W­±ªº¨BÆJ,½ÐÂI³o¸Ì­°¯Å</b></font></a>
<br /><br />
EOT;
        showfooter();

} else {

        $step = intval($step);
        echo '&gt;&gt;'.$downgrademsg[$step];
        flush();

        if($step == 1) {

                dir_clear('./forumdata/cache');
                dir_clear('./forumdata/templates');

                runquery($downgrade1);

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 2) {

                if(isset($downgradetable[$start]) && $downgradetable[$start][0]) {

                        echo "­°¯Å¼Æ¾Úªí [ $start ] {$tablepre}{$downgradetable[$start][0]} {$downgradetable[$start][3]}:";
                        $successed = downgradetable($downgradetable[$start]);

                        if($successed === TRUE) {
                                echo ' <font color=green>OK</font><br />';
                        } elseif($successed === FALSE) {
                                //echo ' <font color=red>ERROR</font><br />';
                        } elseif($successed == 'TABLE NOT EXISTS') {
                                showerror('<span class=red>¼Æ¾Úªí¤£¦s¦b</span>­°¯ÅµLªkÄ~Äò¡A½Ð½T»{±zªº½×¾Âª©¥»¬O§_¥¿½T!</font><br />');
                        }
                }

                $start ++;
                if(isset($downgradetable[$start]) && $downgradetable[$start][0]) {
                        redirect("?action=downgrade&step=$step&start=$start");
                }

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 3) {

                runquery($downgrade3);

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 4) {

                runquery($downgrade4);

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 5) {

                runquery($downgrade5);

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 6) {

                runquery($downgrade6);
                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 7) {

                runquery($downgrade7);

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } elseif($step == 8) {

                runquery($downgrade7);

                echo "²Ä $step ¨B­°¯Å¦¨¥\\\\<br /><br />";
                redirect("?action=downgrade&step=".($step+1));

        } else {

                dir_clear('./forumdata/cache');
                dir_clear('./forumdata/templates');

                $authkey = substr(md5($_SERVER['SERVER_ADDR'].$_SERVER['HTTP_USER_AGENT'].$dbhost.$dbuser.$dbpw.$dbname.$username.$password.$pconnect.substr($timestamp, 0, 6)), 8, 6).random(10);

                $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
                $siteuniqueid = $chars[date('y')%60].$chars[date('n')].$chars[date('j')].$chars[date('G')].$chars[date('i')].$chars[date('s')].substr(md5($onlineip.$timestamp), 0, 4).random(6);

                $db->query("REPLACE INTO {$tablepre}settings (variable, value) VALUES ('authkey', '$authkey')");
                $db->query("DELETE FROM {$tablepre}settings WHERE variable='siteuniqueid'");

                $query = $db->query("SELECT value FROM {$tablepre}settings WHERE variable='insenz'");
                $insenz = unserialize($db->result($query, 0));

                echo '<br />®¥³ß±z½×¾Â¼Æ¾Ú­°¯Å¦¨¥\\\\¡A±µ¤U¨Ó½Ð±z¡G<ol><li><b>¥²§R°£¥»µ{§Ç</b>'.
                '<li>¨Ï¥ÎºÞ²z­û¨­¥÷µn¿ý½×¾Â¡A¶i¤J«á¥x¡A§ó·s½w¦s'.
                '<li>¶i¦æ½×¾Âµù¥U¡Bµn¿ý¡Bµo¶Kµ¥±`³W´ú¸Õ¡A¬Ý¬Ý¹B¦æ¬O§_¥¿±`'.
                '<li>¦pªG±z§Æ±æ±Ò¥Î <b>'.$version_new.'</b> ´£¨Ñªº·s¥\\\\¯à¡A§AÁٻݭn¹ï©ó½×¾Â°ò¥»³]¸m¡BÄæ¥Ø¡B·|­û²Õµ¥µ¥¶i¦æ­«·s³]¸m</ol><br />'.
                '<b>·PÁ±z¿ï¥Î§Ú­Ìªº²£«~¡I</b><a href="index.php" target="_blank">±z²{¦b¥i¥H³X°Ý½×¾Â¡A¬d¬Ý­°¯Å±¡ªp</a><iframe width="0" height="0" src="index.php"></iframe>';
                showfooter();
        }
}

instfooter();

function createtable($sql, $dbcharset) {
        $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_clear($dir) {
        $directory = dir($dir);
        while($entry = $directory->read()) {
                $filename = $dir.'/'.$entry;
                if(is_file($filename)) {
                        @unlink($filename);
                }
        }
        @touch($dir.'/index.htm');
        $directory->close();
}

function dir_writeable($dir) {
        if(!is_dir($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 daddslashes($string) {
        if(is_array($string)) {
                foreach($string as $key => $val) {
                        $string[$key] = daddslashes($val, $force);
                }
        } else {
                $string = addslashes($string);
        }
        return $string;
}

function instfooter() {
        echo '</table></body></html>';
}

function random($length, $numeric = 0) {
        PHP_VERSION < '4.2.0' && mt_srand((double)microtime() * 1000000);
        if($numeric) {
                $hash = sprintf('%0'.$length.'d', mt_rand(0, pow(10, $length) - 1));
        } else {
                $hash = '';
                $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
                $max = strlen($chars) - 1;
                for($i = 0; $i < $length; $i++) {
                        $hash .= $chars[mt_rand(0, $max)];
                }
        }
        return $hash;
}

function runquery($query) {
        global $db, $tablepre, $dbcharset;

        $query = str_replace("\r", "\n", str_replace(' cdb_', ' '.$tablepre, $query));
        $expquery = explode(";\n", $query);
        foreach($expquery as $sql) {
                $sql = trim($sql);
                if($sql == '' || $sql[0] == '#') continue;

                if(strtoupper(substr($sql, 0, 12)) == 'CREATE TABLE') {
                        $db->query(createtable($sql, $dbcharset));
                } else {
                        $db->query($sql);
                }
        }
}

function loadtable($table, $force = 0) {
        global $db, $tablepre, $dbcharset;
        static $tables = array();

        if(!isset($tables[$table]) || $force) {
                if($db->version() > '4.1') {
                        $query = $db->query("SHOW FULL COLUMNS FROM {$tablepre}$table", 'SILENT');
                } else {
                        $query = $db->query("SHOW COLUMNS FROM {$tablepre}$table", 'SILENT');
                }
                while($field = @$db->fetch_array($query)) {
                        $tables[$table][$field['Field']] = $field;
                }
        }
        return $tables[$table];
}

function downgradetable($updatesql) {
        global $db, $tablepre, $dbcharset;

        $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($tableinfo = loadtable($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 showheader() {
        global $version_old, $version_new;

        print <<< EOT
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>Discuz! ­°¯Åµ{§Ç( $version_old &gt;&gt; $version_new)</title>
<meta name="MSSmartTagsPreventParsing" content="TRUE">
<meta http-equiv="MSThemeCompatible" content="Yes">
<style>
a:visited        {color: #FF0000; text-decoration: none}
a:link                {color: #FF0000; text-decoration: none}
a:hover                {color: #FF0000; text-decoration: underline}
body,table,td        {color: #3a4273; font-family: Tahoma, verdana, arial; font-size: 12px; line-height: 20px; scrollbar-base-color: #e3e3ea; scrollbar-arrow-color: #5c5c8d}
input                {color: #085878; font-family: Tahoma, verdana, arial; font-size: 12px; background-color: #3a4273; color: #ffffff; scrollbar-base-color: #e3e3ea; scrollbar-arrow-color: #5c5c8d}
.install        {font-family: Arial, Verdana; font-size: 14px; font-weight: bold; color: #000000}
.header                {font: 12px Tahoma, Verdana; font-weight: bold; background-color: #3a4273 }
.header        td        {color: #ffffff}
.red                {color: red; font-weight: bold}
.bg1                {background-color: #e3e3ea}
.bg2                {background-color: #eeeef6}
</style>
</head>

<body bgcolor="#3A4273" text="#000000">
<table width="95%" height="100%" border="0" cellspacing="0" cellpadding="0" bgcolor="#FFFFFF" align="center">
<tr>
<td>
<table width="98%" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td class="install" height="30" valign="bottom"><font color="#FF0000">&gt;&gt;</font>
Discuz! ­°¯Åµ{§Ç( $version_old &gt;&gt; $version_new)</td>
</tr>
<tr>
<td>
<hr noshade align="center" width="100%" size="1">
</td>
</tr>
<tr>
<td align="center">
<b>¥»­°¯Åµ{§Ç¥u¯à±q $version_old ­°¯Å¨ì $version_new ¡A¹B¦æ¤§«e¡A½Ð½T»{¤w¸g¤W¶Ç©Ò¦³¤å¥ó¡A¨Ã°µ¦n¼Æ¾Ú³Æ¥÷<br />
­°¯Å·í¤¤¦³¥ô¦ó°ÝÃD½Ð³X°Ý§Þ³N¤ä«ù¯¸ÂI <a href="http://www.discuz.net" target="_blank">http://www.discuz.net</a></b>
</td>
</tr>
<tr>
<td>
<hr noshade align="center" width="100%" size="1">
</td>
</tr>
<tr><td>
EOT;
}

function showfooter() {
        echo <<< EOT
</td></tr></table></td></tr>
<tr><td height="100%">&nbsp;</td></tr>
</table>
</body>
</html>
EOT;
        exit();
}

function showerror($message, $break = 1) {
        echo '<br /><br />'.$message.'<br /><br />';
        if($break) showfooter();
}

function redirect($url) {

        $url = $url.(strstr($url, '&') ? '&' : '?').'t='.time();

        echo <<< EOT
<hr size=1>
<script language="JavaScript">
        function redirect() {
                window.location.replace('$url');
        }
        setTimeout('redirect();', 1000);
</script>
<br /><br />
&gt;&gt;<a href="$url">ÂsÄý¾¹·|¦Û°Ê¸õÂà­¶­±¡AµL»Ý¤H¤u¤z¹w¡C°£«D·í±zªºÂsÄý¾¹ªø®É¶¡¨S¦³¦Û°Ê¸õÂà®É¡A½ÐÂIÀ»³o¸Ì</a>
<br /><br />
EOT;
        showfooter();
}

?>

¼Ã¹«¹«

xuon

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Ù×»¢

Æ­ÈËMJJ
......