viewthread.php

Discuz功能源码（开源）

<?php

/*
	[Discuz!] (C)2001-2009 Comsenz Inc.
	This is NOT a freeware, use is subject to license terms

	$Id: viewthread.php 17199 2008-12-09 14:29:41Z liuqiang $
*/

if(!defined('CURSCRIPT')) {
	define('CURSCRIPT', 'viewthread');
}

define('SQL_ADD_THREAD', ' t.dateline, t.special, t.lastpost AS lastthreadpost, ');
require_once './include/common.inc.php';
require_once DISCUZ_ROOT.'./include/forum.func.php';

$page = max($page, 1);
if($cachethreadlife && $forum['threadcaches'] && !$discuz_uid && $page == 1 && !$forum['special']) {
	viewthread_loadcache();
}

require_once DISCUZ_ROOT.'./include/discuzcode.func.php';

$discuz_action = 3;
$sdb = loadmultiserver('viewthread');

$thread = $sdb->fetch_first("SELECT * FROM {$tablepre}threads t WHERE tid='$tid'".($auditstatuson ? '' : " AND displayorder>='0'"));

if(!$thread) {
	showmessage('thread_nonexistence');
}

$oldtopics = isset($_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);
}

$thisgid = 0;

$thread['subjectenc'] 	= rawurlencode($thread['subject']);
$fromuid = $creditspolicy['promotion_visit'] && $discuz_uid ? '&amp;fromuid='.$discuz_uid : '';
$feeduid = $thread['authorid'] ? $thread['authorid'] : 0;
$feedpostnum = $thread['replies'] > $ppp ? $ppp : ($thread['replies'] ? $thread['replies'] : 1);
if($uchomeurl) {
	$avatarfeedshow = $uc['homeshow'] & 1 ? 1 : 0;
}

$upnavlink = 'forumdisplay.php?fid='.$fid.($extra ? '&amp;'.preg_replace("/^(&amp;)*/", '', $extra) : '');
$navigation = ' &raquo; <a href="'.$upnavlink.'">'.(strip_tags($forum['name']) ? strip_tags($forum['name']) : $forum['name']).'</a> &raquo; '.$thread['subject'];

if($thread['digest'] == '-2') {
	$campaign = $db->fetch_first("SELECT id, type, status, url, autoupdate, lastupdated FROM {$tablepre}campaigns WHERE tid='$tid'");
	if(!$campaign || $campaign['status'] != 2) {
		showmessage('thread_nonexistence');
	}

	$insenz = $db->result_first("SELECT value FROM {$tablepre}settings WHERE variable='insenz'");
	$insenz = $insenz ? unserialize($insenz) : array();
	if(empty($insenz['authkey'])) {
		showmessage('thread_nonexistence');
	}

	require_once DISCUZ_ROOT.'./include/insenz.func.php';
	$member = $db->fetch_first("SELECT regdate FROM {$tablepre}members WHERE uid='$discuz_uid'");
	$iframeurl = $campaign[url]."siteid=$insenz[siteid]&cid=$campaign[id]&s=".urlencode(insenz_authcode("sitename=$bbname&siteurl=$boardurl&username=$discuz_userss&uid=$discuz_uid&email=$email&grouptitle=$grouptitle&regdate=$member[regdate]&ppp=$ppp&tid=$tid", 'ENCODE', $insenz['authkey'])).'&'.$_SERVER['QUERY_STRING'];
	$update = $campaign['autoupdate'] && ($timestamp - $campaign['lastupdated']) < 600 ? FALSE : TRUE;
	include template('viewthread_iframe');
	exit;
}

$navtitle = $thread['subject'].' - '.strip_tags($forum['name']);
if($forum['type'] == 'sub') {
	$fup = $sdb->fetch_first("SELECT fid, name FROM {$tablepre}forums WHERE fid='$forum[fup]'");
	$navigation = '&raquo; <a href="forumdisplay.php?fid='.$fup['fid'].'">'.(strip_tags($fup['name']) ? strip_tags($fup['name']) : $fup['name']).'</a> '.$navigation;
	$navtitle = $navtitle.' - '.strip_tags($fup['name']);
}
$navtitle .= ' - ';

$forum['typemodels'] = $forum['typemodels'] ? unserialize($forum['typemodels']) : array();
$threadsort = isset($forum['threadsorts']['types'][$thread['sortid']]) ? 1 : 0;
$typetemplate = $tagscript = '';
$optiondata = $optionlist = array();
if($thread['sortid'] && $threadsort) {
	if($forum['threadsorts']['types'][$thread['sortid']]) {
		if(@include_once DISCUZ_ROOT.'./forumdata/cache/threadsort_'.$thread['sortid'].'.php') {
			$query = $sdb->query("SELECT optionid, value FROM {$tablepre}typeoptionvars WHERE tid='$tid'");
			while($option = $sdb->fetch_array($query)) {
				$optiondata[$option['optionid']] = $option['value'];
			}

			$searchtitle = $searchvalue = array();
			foreach($_DTYPE as $optionid => $option) {
				$optionlist[$option['identifier']]['title'] = $_DTYPE[$optionid]['title'];
				if($_DTYPE[$optionid]['type'] == 'checkbox') {
					$optionlist[$option['identifier']]['value'] = '';
					foreach(explode("\t", $optiondata[$optionid]) as $choiceid) {
						$optionlist[$option['identifier']]['value'] .= $_DTYPE[$optionid]['choices'][$choiceid].'&nbsp;';
					}
				} elseif(in_array($_DTYPE[$optionid]['type'], array('radio', 'select'))) {
					$optionlist[$option['identifier']]['value'] = $_DTYPE[$optionid]['choices'][$optiondata[$optionid]];
				} elseif($_DTYPE[$optionid]['type'] == 'image') {
					$maxwidth = $_DTYPE[$optionid]['maxwidth'] ? 'width="'.$_DTYPE[$optionid]['maxwidth'].'"' : '';
					$maxheight = $_DTYPE[$optionid]['maxheight'] ? 'height="'.$_DTYPE[$optionid]['maxheight'].'"' : '';
					$optionlist[$option['identifier']]['value'] = $optiondata[$optionid] ? "<a href=\"$optiondata[$optionid]\" target=\"_blank\"><img src=\"$optiondata[$optionid]\" onload=\"thumbImg(this)\" $maxwidth $maxheight border=\"0\"></a>" : '';
				} elseif($_DTYPE[$optionid]['type'] == 'url') {
					$optionlist[$option['identifier']]['value'] = $optiondata[$optionid] ? "<a href=\"$optiondata[$optionid]\" target=\"_blank\">$optiondata[$optionid]</a>" : '';
				} elseif($_DTYPE[$optionid]['type'] == 'textarea') {
					$optionlist[$option['identifier']]['value'] = $optiondata[$optionid] ? nl2br($optiondata[$optionid]) : '';
				} else {
					$optionlist[$option['identifier']]['value'] = $optiondata[$optionid];
				}
				$searchtitle[] = '/{('.$option['identifier'].')}/e';
				$searchvalue[] = '/\[('.$option['identifier'].')value\]/e';
			}

			if($_DTYPETEMPLATE) {
				$typetemplate = preg_replace($searchtitle, "showoption('\\1', 'title')", $_DTYPETEMPLATE);
				$typetemplate = preg_replace($searchvalue, "showoption('\\1', 'value')", $typetemplate);
			}
		}
	}

	$thread['subject'] = ($forum['threadsorts']['types'][$thread['sortid']] ? ($forum['threadsorts']['listable'] ? '<a href="forumdisplay.php?fid='.$fid.'&amp;filter=sort&amp;sortid='.$thread['sortid'].'">['.$forum['threadsorts']['types'][$thread['sortid']].']</a>' : '['.$forum['threadsorts']['types'][$thread['sortid']].']').' ' : '').
				($forum['threadtypes']['types'][$thread['typeid']] ? ($forum['threadtypes']['listable'] ? '<a href="forumdisplay.php?fid='.$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');
	}

} elseif($forum['allowview'] == -1) {
	$navtitle = '';
	showmessage('forum_access_view_disallow');
}

if($forum['formulaperm']) {
	formulaperm($forum['formulaperm']);
}

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

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

$threadpay = FALSE;
if($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 {
		$exemptvalue = $forum['ismoderator'] ? 128 : 16;
		if(!($exempt & $exemptvalue) && $thread['authorid'] != $discuz_uid) {
			$query = $sdb->query("SELECT tid FROM {$tablepre}paymentlog WHERE tid='$tid' AND uid='$discuz_uid'");
			if(!$sdb->num_rows($query)) {
				require_once DISCUZ_ROOT.'./include/threadpay.inc.php';
				$threadpay = TRUE;
			}
		}
	}
}

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

$allowgetattach = !empty($forum['allowgetattach']) || ($allowgetattach && !$forum['getattachperm']) || forumperm($forum['getattachperm']);
$seccodecheck = ($seccodestatus & 4) && (!$seccodedata['minposts'] || $posts < $seccodedata['minposts']);
$secqaacheck = $secqaa['status'][2] && (!$secqaa['minposts'] || $posts < $secqaa['minposts']);

$postlist = $attachtags = $attachlist = array();
$aimgcount = 0;
$attachpids = -1;

if(empty($action) && $tid) {

	$thisgid = $forum['type'] == 'forum' ? $forum['fup'] : $_DCACHE['forums'][$forum['fup']]['fup'];
	$lastmod = $thread['moderated'] ? viewthread_lastmod() : array();

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

	$customshow = $discuz_uid ? str_pad(base_convert($customshow, 10, 3), 4, '0', STR_PAD_LEFT) : '2222';

	$disableddateconvert = $customshow{0};
	$showsignatures = $customshow{1} == 2 ? $showsettings{0} : $customshow{1};
	$showavatars = $customshow{2} == 2 ? $showsettings{1} : $customshow{2};
	$showimages = $customshow{3} == 2 ? $showsettings{2} : $customshow{3};

	$highlightstatus = isset($highlight) && str_replace('+', '', $highlight) ? 1 : 0;

	$usesigcheck = $discuz_uid && $sigstatus ? 1 : 0;
	$allowpostreply = ($forum['allowreply'] != -1) && ((!$thread['closed'] && !checkautoclose()) || $forum['ismoderator']) && ((!$forum['replyperm'] && $allowreply) || ($forum['replyperm'] && forumperm($forum['replyperm'])) || $forum['allowreply']);
	$allowpost = $forum['allowpost'] != -1 && ((!$forum['postperm'] && $allowpost) || ($forum['postperm'] && forumperm($forum['postperm'])) || $forum['allowpost']);
	$addfeedcheck = $customaddfeed & 4 ? 1 : 0;

	if($allowpost) {
		$allowpostpoll = $allowpostpoll && ($forum['allowpostspecial'] & 1);
		$allowposttrade = $allowposttrade && ($forum['allowpostspecial'] & 2);
		$allowpostreward = $allowpostreward && ($forum['allowpostspecial'] & 4) && isset($extcredits[$creditstrans]);
		$allowpostactivity = $allowpostactivity && ($forum['allowpostspecial'] & 8);
		$allowpostdebate = $allowpostdebate && ($forum['allowpostspecial'] & 16);
		$allowpostvideo = $allowpostvideo && ($forum['allowpostspecial'] & 32) && $videoopen;
	} else {
		$allowpostpoll = $allowposttrade = $allowpostreward = $allowpostactivity = $allowpostdebate = $allowpostvideo = FALSE;
	}

	$visitedforums = $visitedforums ? visitedforums() : '';
	$forummenu = '';

	if($forumjump) {
		$forummenu = forumselect(FALSE, 1);
	}


	$relatedthreadlist = array();
	$relatedthreadupdate = $tagupdate = FALSE;
	$relatedkeywords = $tradekeywords = $metakeywords = $firstpid = '';
	$randnum = $qihoo['relate']['webnum'] ? rand(1, 1000) : '';
	$statsdata = !empty($statsdata) ? dhtmlspecialchars($statsdata) : '';
	if($qihoo['relate']['bbsnum'] || $insenz['topicrelatedad'] || ($insenz['traderelatedad'] && $thread['special'] == 2)) {
		$site = site();
		$query = $db->query("SELECT type, expiration, keywords, relatedthreads FROM {$tablepre}relatedthreads WHERE tid='$tid'");
		if($db->num_rows($query)) {
			while($related = $db->fetch_array($query)) {
				if($related['expiration'] <= $timestamp) {
					$relatedthreadupdate = TRUE;
					$qihoo_up = 1;
				} elseif($qihoo['relate']['bbsnum'] && $related['type'] == 'general') {
					$relatedthreadlist = unserialize($related['relatedthreads']);
					if($related['keywords']) {
						$keywords = str_replace("\t", ' ', $related['keywords']);
						$searchkeywords = rawurlencode($keywords);
						$statskeywords = urlencode($keywords);
						$statsurl = urlencode($boardurl.'viewthread.php?tid='.$tid);
						$prefix = '';
						foreach(explode("\t", $related['keywords']) as $keyword) {
							$relatedkeywords .= $keyword ? $prefix.'<a href="http://www.qihoo.com/wenda.php?kw='.rawurlencode($keyword).'&amp;do=search&amp;noq=q" target="_blank">'.$keyword.'</a>' : '';
							$prefix = ', ';
							$metakeywords .= $keyword ? $keyword.',' : '';
						}
					}
				} elseif($related['type'] == 'trade') {
					$tradekeywords = explode("\t", $related['keywords']);
					$tradekeywords = $tradekeywords[array_rand($tradekeywords)];
				}
			}
		} else {
			$relatedthreadupdate = TRUE;
			$qihoo_up = 0;
		}
		$relatedthreadupdate && $verifykey = md5($authkey.$tid.$thread['subjectenc'].$charset.$site);
	}
	$relatedthreads = array();
	if(!empty($relatedthreadlist)) {
		if(!isset($_COOKIE['discuz_collapse']) || strpos($_COOKIE['discuz_collapse'], 'relatedthreads') === FALSE) {
			$relatedthreads['img'] = 'collapsed_no.gif';
			$relatedthreads['style'] = '';
		} else {
			$relatedthreads['img'] = 'collapsed_yes.gif';
			$relatedthreads['style'] = 'display: none';
		}
	}

	$threadtag = array();
	if($tagstatus) {
		$query = $sdb->query("SELECT tagname FROM {$tablepre}threadtags WHERE tid='$tid'");
		$thread['tags'] = $prefix = '';
		while($tags = $sdb->fetch_array($query)) {
			$metakeywords .= $tags['tagname'].',';
			$thread['tags'] .= $prefix.'<a href="tag.php?name='.rawurlencode($tags['tagname']).'" target="_blank">'.$tags['tagname'].'</a>';
			$prefix = ', ';
		}
		if(($tagstatus == 2 || $forum['allowtag'] == 2) && !$thread['tags'] || $relatedthreadupdate) {
			$tagupdate = TRUE;
		}
		$relatedthreadupdate && $thread['tagsenc'] = rawurlencode(strip_tags($thread['tags']));
	}

	viewthread_updateviews();

	@extract($_DCACHE['custominfo']);

	$infosidestatus['posts'] = $infosidestatus[1] && isset($infosidestatus['f'.$fid]['posts']) ? $infosidestatus['f'.$fid]['posts'] : $infosidestatus['posts'];
	$infoside = $infosidestatus[1] && $thread['replies'] > $infosidestatus['posts'];

	$specialadd1 = $specialadd2 = $specialextra = '';
	if($thread['special'] == 2) {
		$specialadd1 = "LEFT JOIN {$tablepre}trades tr ON p.pid=tr.pid";
		$specialadd2 = "AND tr.tid IS null";
	} elseif($thread['special'] == 5) {
		if(isset($stand) && $stand >= 0 && $stand < 3) {
			$specialadd1 .= "LEFT JOIN {$tablepre}debateposts dp ON p.pid=dp.pid";
			if($stand) {
				$specialadd2 .= "AND (dp.stand='$stand' OR p.first='1')";
			} else {
				$specialadd2 .= "AND (dp.stand='0' OR dp.stand IS NULL OR p.first='1')";
			}
			$specialextra = "&amp;stand=$stand";
		} else {
			$specialadd1 = "LEFT JOIN {$tablepre}debateposts dp ON p.pid=dp.pid";
		}
		$fieldsadd .= ", dp.stand, dp.voters";
	}

	$onlyauthoradd = '';
	if(empty($viewpid)) {
		$authorid = intval($authorid);
		if($authorid) {
			$thread['replies'] = $sdb->result_first("SELECT COUNT(*) FROM {$tablepre}posts WHERE tid='$tid' AND invisible='0' AND authorid='$authorid'") - 1;
			if($thread['replies'] < 0) {
				showmessage('undefined_action');
			}
			$onlyauthoradd = "AND p.authorid='$authorid'";
		} elseif($thread['special'] == 5) {
			if(isset($stand) && $stand >= 0 && $stand < 3) {
				if($stand) {
					$thread['replies'] = $sdb->result_first("SELECT COUNT(*) FROM {$tablepre}debateposts WHERE tid='$tid' AND stand='$stand'");
				} else {
					$thread['replies'] = $sdb->result_first("SELECT COUNT(*) FROM {$tablepre}posts p LEFT JOIN {$tablepre}debateposts dp ON p.pid=dp.pid WHERE p.tid='$tid' AND (dp.stand='0' OR dp.stand IS NULL)");
				}