viewthread.php

论坛软件系统亦称电子公告板(BBS)系统

<?php

/*
	[Discuz!] (C)2001-2006 Comsenz Inc.
	This is NOT a freeware, use is subject to license terms

	$RCSfile: viewthread.php,v $
	$Revision: 1.119.2.3 $
	$Date: 2006/09/05 07:15:57 $
*/

define('CURSCRIPT', 'viewthread');

require_once './include/common.inc.php';
require_once DISCUZ_ROOT.'./include/forum.func.php';
require_once DISCUZ_ROOT.'./include/discuzcode.func.php';

$discuz_action = 3;

$query = $db->query("SELECT * FROM {$tablepre}threads t WHERE tid='$tid' AND displayorder>='0'");

$lastmod = array();

if(!$thread = $db->fetch_array($query)) {

	$tid = intval($_GET['tid']);
	if($supe_status && !empty($supe_fromsupesite) && md5("$discuz_auth_key-$tid") == $supe_fromsupesite) {
		$db->query("UPDATE {$supe_tablepre}spaceitems SET tid='0' WHERE tid='$tid'");
	}

	showmessage('thread_nonexistence');

} elseif($thread['moderated']) {
	$query = $db->query("SELECT uid AS moduid, username AS modusername, dateline AS moddateline, action AS modaction
		FROM {$tablepre}threadsmod
		WHERE tid='$tid' ORDER BY dateline DESC LIMIT 1");
	if($lastmod = $db->fetch_array($query)) {
		include language('modactions');
		$lastmod['modusername'] = $lastmod['modusername'] ? $lastmod['modusername'] : 'System';
		$lastmod['moddateline'] = gmdate("$dateformat $timeformat", $lastmod['moddateline'] + $timeoffset * 3600);
		$lastmod['modaction'] = $modactioncode[$lastmod['modaction']];
	} else {
		$db->query("UPDATE {$tablepre}threads SET moderated='0' WHERE tid='$tid'", 'UNBUFFERED');
	}
}

$supe_fromdiscuz = $supe_status && $thread['itemid'] ? md5("$discuz_auth_key-$thread[itemid]") : '';

$codecount = 0;
$thread['subjectenc'] = rawurlencode($thread['subject']);

$oldtopics = isset($_DCOOKIE['oldtopics']) ? $_DCOOKIE['oldtopics'] : 'D';
if(strpos($oldtopics, 'D'.$tid.'D') === FALSE) {
	$oldtopics = 'D'.$tid.$oldtopics;
	if(strlen($oldtopics) > 3072) {
		$oldtopics = preg_replace("((D\d+)+D).*$", "\\1", substr($oldtopics, 0, 3072));
	}
	dsetcookie('oldtopics', $oldtopics, 3600);
}

if($lastvisit < $thread['lastpost'] && (!isset($_DCOOKIE['fid'.$fid]) || $thread['lastpost'] > $_DCOOKIE['fid'.$fid])) {
	dsetcookie('fid'.$fid, $thread['lastpost'], 3600);
}
$navigation = "&raquo; <a href=\"forumdisplay.php?fid=$fid".($extra ? '&amp;'.preg_replace("/^(&amp;)*/", '', $extra) : '')."\">$forum[name]</a> &raquo; $thread[subject]";
$navtitle = $thread['subject'].' - '.strip_tags($forum['name']);
if($forum['type'] == 'sub') {
	$query = $db->query("SELECT fid, name FROM {$tablepre}forums WHERE fid='$forum[fup]'");
	$fup = $db->fetch_array($query);
	$navigation = "&raquo; <a href=\"forumdisplay.php?fid=$fup[fid]\">$fup[name]</a> $navigation";
	$navtitle = $navtitle.' - '.strip_tags($fup['name']);
}
$navtitle .= ' - ';

if($thread['typeid'] && isset($forum['threadtypes']['types'][$thread['typeid']])) {
	$thread['subject'] = ($forum['threadtypes']['listable'] ? '<a href="forumdisplay.php?fid='.$fid.'&amp;filter=type&amp;typeid='.$thread['typeid'].'">['.$forum['threadtypes']['types'][$thread['typeid']].']</a>' : '['.$forum['threadtypes']['types'][$thread['typeid']].']').' '.$thread['subject'];
}
if(empty($forum['allowview'])) {
	if(!$forum['viewperm'] && !$readaccess) {
		showmessage('group_nopermission', NULL, 'NOPERM');
	} elseif($forum['viewperm'] && !forumperm($forum['viewperm'])) {
		$navtitle = '';
		showmessage('forum_nopermission', NULL, 'NOPERM');
	}
}

if($thread['readperm'] && $thread['readperm'] > $readaccess && !$forum['ismoderator'] && $thread['authorid'] != $discuz_uid) {
	showmessage('thread_nopermission', NULL, 'NOPERM');
}

if($forum['password'] && $forum['password'] != $_DCOOKIE['fidpw'.$fid]) {
	header("Location: {$boardurl}forumdisplay.php?fid=$fid&amp;sid=$sid");
	exit();
}

if($thread['price'] > 0 && $thread['special'] == 0) {
	if($maxchargespan && $timestamp - $thread['dateline'] >= $maxchargespan * 3600) {
		$db->query("UPDATE {$tablepre}threads SET price='0' WHERE tid='$tid'");
		$thread['price'] = 0;
	} else {
		if(!$discuz_uid) {
			showmessage('group_nopermission', NULL, 'NOPERM');
		} elseif(!$forum['ismoderator'] && $thread['authorid'] != $discuz_uid) {
			$query = $db->query("SELECT tid FROM {$tablepre}paymentlog WHERE tid='$tid' AND uid='$discuz_uid'");
			if(!$db->num_rows($query)) {
				require_once DISCUZ_ROOT.'./include/threadpay.inc.php';
				exit();
			}
		}
	}
}

$raterange = $modratelimit && $adminid == 3 && !$forum['ismoderator'] ? array() : $raterange;

$extra = rawurlencode($extra);
$allowgetattach = !empty($forum['allowgetattach']) || ($allowgetattach && !$forum['getattachperm']) || forumperm($forum['getattachperm']);

if(empty($action) && $tid) {
	if($discuz_uid && $newpm) {
		require_once DISCUZ_ROOT.'./include/pmprompt.inc.php';
	}

	$showsettings = str_pad(decbin($showsettings), 3, '0', STR_PAD_LEFT);

	$customshow = $discuz_uid ? str_pad(base_convert($customshow, 10, 3), 3, '0', STR_PAD_LEFT) : '222';

	$showsignatures = $customshow{0} == 2 ? $showsettings{0} : $customshow{0};
	$showavatars = $customshow{1} == 2 ? $showsettings{1} : $customshow{1};
	$showimages = $customshow{2} == 2 ? $showsettings{2} : $customshow{2};
	$allowpaytoauthor = $forum['allowpaytoauthor'];

	//get qihoo status (pos. -3)
	$searchboxstatus = substr(sprintf('%03b', $qihoo_searchbox), -3, 1);

	$highlightstatus = isset($highlight) && str_replace('+', '', $highlight) ? 1 : 0;
	$maxsigrows = $maxsigrows ? 'style="overflow: hidden; max-height: '.$maxsigrows.'em; maxHeight: '.($maxsigrows * intval(FONTSIZE) + 5).'px;"' : '';
	$ppp = $forum['threadcaches'] ? $_DCACHE['settings']['postperpage'] : $ppp;
	$page = empty($page) || !ispage($page) ? 1 : $page;
	$start_limit = $numpost = ($page - 1) * $ppp;
	if($start_limit > $thread['replies']) {
		$start_limit = $numpost = 0;
		$page = 1;
	}
	$multipage = multi($thread['replies'] + 1, $ppp, $page, "viewthread.php?tid=$tid&amp;extra=$extra".(isset($highlight) ? "&amp;highlight=".rawurlencode($highlight) : ''));

	if($thread['special'] > 0) {
		include_once DISCUZ_ROOT.'./include/special.inc.php';
	}

	$extcredits_thread = array();

	if(!empty($extcredits)) {
		foreach($extcredits as $key => $value) {
			if($value['showinthread']) {
				$extcredits_thread['extcredits'.$key] = array('title' => $value['title'], 'unit' => $value['unit']);
			}
		}
	}

	$fieldsadd = '';
	if(is_array($_DCACHE['fields_thread'])) {
		foreach($_DCACHE['fields_thread'] as $field) {
			$fieldsadd .= ', mf.field_'.$field['fieldid'];
		}
	}

	$postlist = $attachtags = array();
	$newpostanchor = $postcount = $attachpids = $ratelogpids = $threadcachestatus = 0;

	if($forum['threadcaches'] && $page == 1 && !$thread['special']) {
		$thread['livedays'] = ceil(($timestamp - $thread['dateline']) / 86400);
		$thread['lastpostdays'] = ceil(($timestamp - $thread['lastpost']) / 86400);

		$threadcachemark = 100 - ($thread['displayorder'] * 15 + $thread['digest'] * 10 + min($thread['views'] / max($thread['livedays'], 10) * 2, 50) + max(-10, (15 - $thread['lastpostdays'])) + min($thread['replies'] / $_DCACHE['settings']['postperpage'] * 1.5, 15));
		$threadcachestatus = $threadcachemark < $forum['threadcaches'] ? 1 : 0;
		if($threadcachestatus && @include(DISCUZ_ROOT.'./forumdata/threadcaches/'.substr($tid, -2)."/{$tid}_{$page}.php")) {
			if($_DCACHE['threadcachetime'] < $thread['lastpost'] && $thread['replies'] < $ppp) {
				$threadcachestatus = $allowgetattach = 1;
				$postlist = array();
			} else {
				$threadcachestatus = 2;
				$postlist = &$_DCACHE['postlist'];
			}
		}
	}

	$pasetype = $forum['threadcaches'] ? 2 : 0;

	if(empty($forum['threadcaches']) || $threadcachestatus != 2) {

		$onlineauthors = array();
		$query = $db->query("SELECT p.*, m.uid, m.username, m.groupid, m.regdate, m.lastactivity, m.posts, m.digestposts, m.oltime,
			m.pageviews, m.credits, m.extcredits1, m.extcredits2, m.extcredits3, m.extcredits4, m.extcredits5, m.extcredits6,
			m.extcredits7, m.extcredits8, m.email, m.gender, m.showemail, m.invisible, m.avatarshowid, m.xspacestatus, mf.nickname, mf.site,
			mf.icq, mf.qq, mf.yahoo, mf.msn, mf.taobao, mf.alipay, mf.location, mf.medals, mf.avatar, mf.avatarwidth,
			mf.avatarheight, mf.sightml AS signature, mf.customstatus $fieldsadd
			FROM {$tablepre}posts p
			LEFT JOIN {$tablepre}members m ON m.uid=p.authorid
			LEFT JOIN {$tablepre}memberfields mf ON mf.uid=m.uid
			WHERE p.tid='$tid' AND p.invisible='0' ORDER BY dateline LIMIT $start_limit, $ppp");

		while($post = $db->fetch_array($query)) {

			if(!$newpostanchor && $post['dateline'] > $lastvisit) {
				$post['newpostanchor'] = '<a name="newpost"></a>';
				$newpostanchor = 1;
			} else {
				$post['newpostanchor'] = '';
			}
			$post['lastpostanchor'] = $numpost == $thread['replies'] ? '<a name="lastpost"></a>' : '';
			$post['number'] = ++$numpost;
			$post['count'] = $postcount++;
			$post['thisbg'] = $thisbg = isset($thisbg) && $thisbg == 'altbg1' ? 'altbg2' : 'altbg1';
			$post['dbdateline'] = $post['dateline'];
			$post['dateline'] = gmdate("$dateformat $timeformat", $post['dateline'] + $timeoffset * 3600);
			$post['groupid'] = $_DCACHE['usergroups'][$post['groupid']] ? $post['groupid'] : 7;

			if($post['username']) {
				$onlineauthors[] = $post['authorid'];
				$post['groupid'] = getgroupid($post['authorid'], $_DCACHE['usergroups'][$post['groupid']], $post);
				$post['readaccess'] = $_DCACHE['usergroups'][$post['groupid']]['readaccess'];
				if($userstatusby == 1 || $_DCACHE['usergroups'][$post['groupid']]['byrank'] === '0') {
					$post['authortitle'] = $_DCACHE['usergroups'][$post['groupid']]['grouptitle'];
					$post['stars'] = $_DCACHE['usergroups'][$post['groupid']]['stars'];
				} elseif($userstatusby == 2) {
					foreach($_DCACHE['ranks'] as $rank) {
						if($post['posts'] > $rank['postshigher']) {
							$post['authortitle'] = $rank['ranktitle'];
							$post['stars'] = $rank['stars'];
							break;
						}
					}