- <?php
- /**
- * [Discuz!] (C)2001-2099 Comsenz Inc.
- * This is NOT a freeware, use is subject to license terms
- *
- * $Id: forum_index.php 29580 2012-04-20 02:53:59Z svn_project_zhangjie $
- */
- //mod文件只能被入口文件引用,不能直接访问
- if(!defined('IN_DISCUZ')) {
- exit('Access Denied');
- }
- /**
- * 返回库文件的全路径
- *
- * @param string $libname 库文件分类及名称
- * @param string $folder 模块目录'module','include','class'
- * @return string
- *
- * @example require DISCUZ_ROOT.'./source/function/function_cache.php'
- * @example 我们可以利用此函数简写为:require libfile('function/cache');
- * 再如:require_once libfile('space/'.$do, 'include');//包含 "/source/include/space/space_profile.php" 文件
- * 1、libfile函数返回库文件的全路径
- * 2、包含文件路径格式:"/source/include/space/space_$do.php"
- * 3、require_once "返回的库文件的全路径",这样就可以将库文件包含进来
- */
- require_once libfile('function/forumlist');//引入"/source/function/function_forumlist.php"函数库文件
- $gid = intval(getgpc('gid'));//默认值为0:分区id;何为分区?简单说,就是凌驾与版块之上的一个分类
- $showoldetails = get_index_online_details();//默认情况下为空值,不知道怎么回事
- //论坛首页缓存更细时间,0-不开启
- //uid-管理员id gid-分区id cacheindexlife-首页缓存时间
- //gid为空的情况
- if(!$_G['uid'] && !$gid && $_G['setting']['cacheindexlife'] && !defined('IN_ARCHIVER') && !defined('IN_MOBILE')) {
- get_index_page_guest_cache();//此代码只针对游客
- }
- $newthreads = round((TIMESTAMP - $_G['member']['lastvisit'] + 600) / 1000) * 1000;
- //初始化数组变量
- $catlist = $forumlist = $sublist = $forumname = $collapse = $favforumlist = array();
- //初始化普通变量:主题、帖子、今日帖子、短消息
- $threads = $posts = $todayposts = $announcepm = 0;
- //定义发帖数量
- $postdata = $_G['cache']['historyposts'] ? explode(" ", $_G['cache']['historyposts']) : array(0,0);
- $postdata[0] = intval($postdata[0]);//昨日发帖
- $postdata[1] = intval($postdata[1]);//历史最高发帖
- //创建站点栏目名称、描述、关键字
- list($navtitle, $metadescription, $metakeywords) = get_seosetting('forum');
- if(!$navtitle) {//$navtitle-默认值为“论坛”
- $navtitle = $_G['setting']['navs'][2]['navname'];
- $nobbname = false;
- } else {
- //默认执行
- $nobbname = true;
- }
- //描述
- if(!$metadescription) {
- $metadescription = $navtitle;
- }
- //关键字
- if(!$metakeywords) {
- $metakeywords = $navtitle;
- }
- //heatthread:热帖
- if($_G['setting']['indexhot']['status'] && $_G['cache']['heats']['expiration'] < TIMESTAMP) {
- require_once libfile('function/cache');//引入"/source/function/function_cache.php"函数库文件
- updatecache('heats');
- }
- if($_G['uid'] && empty($_G['cookie']['nofavfid'])) {
- $favfids = array();
- $forum_favlist = C::t('home_favorite')->fetch_all_by_uid_idtype($_G['uid'], 'fid');
- if(!$forum_favlist) {
- dsetcookie('nofavfid', 1, 31536000);
- }
- foreach($forum_favlist as $key => $favorite) {
- if(defined('IN_MOBILE')) {
- $forum_favlist[$key]['title'] = strip_tags($favorite['title']);
- }
- $favfids[] = $favorite['id'];
- }
- if($favfids) {
- $favforumlist = C::t('forum_forum')->fetch_all($favfids);
- foreach($favforumlist as $id => $forum) {
- forum($favforumlist[$id]);
- }
- }
- }
- //默认情况下不执行,即:直接跳过这段if代码段
- if(empty($gid) && empty($_G['member']['accessmasks']) && empty($showoldetails)) {
- extract(get_index_memory_by_groupid($_G['member']['groupid']));
- if(defined('FORUM_INDEX_PAGE_MEMORY') && FORUM_INDEX_PAGE_MEMORY) {
- categorycollapse();
- if(!defined('IN_ARCHIVER')) {
- include template('diy:forum/discuz');//引入模板文件的方式
- } else {
- include loadarchiver('forum/discuz');
- }
- dexit();
- }
- }
- //默认情况下执行此if代码段;FORUM_INDEX_PAGE_MEMORY是首页所有缓存数据的一个常量
- //gid为空的情况 FORUM_INDEX_PAGE_MEMORY常量
- if(!$gid && (!defined('FORUM_INDEX_PAGE_MEMORY') || !FORUM_INDEX_PAGE_MEMORY)) {
- /*格式:
- * <li><span><a href="">公告1</a></span></li>
- * <li><span><a href="">公告2</a></span></li>
- */
- $announcements = get_index_announcements();//首页公告,此函数的定义在当前文件底部
- //通过状态值查询所有开启的版块或分区相关信息,可查看桌面$forums = Ct('forum_forum')-fetch_all_by_status(1).txt文件
- //对应pre_forum_forum数据表中的记录
- $forums = C::t('forum_forum')->fetch_all_by_status(1);
- //初始化一个数组变量
- $fids = array();
- foreach($forums as $forum) {//$forum-代表每一个开启的分区或版块相关的信息数组,一般为一维数组
- //分区或版块id数组,格式:$fid[分区或版块id]=分区或版块id;$fids[1]=1
- $fids[$forum['fid']] = $forum['fid'];//启用的分区id或版块id
- }
- //初始化一个版块访问权限数组变量
- $forum_access = array();
- if(!empty($_G['member']['accessmasks'])) {//用户访问权限标志,默认值为1
- $forum_access = C::t('forum_access')->fetch_all_by_fid_uid($fids, $_G['uid']);
- }
- //获取版块扩展字段信息,对应数据表:pre_forum_forumfield,查看桌面 $forum_fields.txt文件
- $forum_fields = C::t('forum_forumfield')->fetch_all($fids);
- foreach($forums as $forum) {
- if($forum_fields[$forum['fid']]['fid']) {//分区或版块id
- //将分区或版块的通用信息字段或扩展字段信息合并在一起
- //即将pre_forum_forum表的字段与pre_forum_fields表的字段合并在一起
- $forum = array_merge($forum, $forum_fields[$forum['fid']]);//一维数组
- }
- if($forum_access['fid']) {
- $forum = array_merge($forum, $forum_access[$forum['fid']]);
- }
- //版块或分区的名称
- $forumname[$forum['fid']] = strip_tags($forum['name']);
- //反序列化的pre_forum_forumfields表中extra字段的值
- $forum['extra'] = empty($forum['extra']) ? array() : dunserialize($forum['extra']);
- if(!is_array($forum['extra'])) {
- $forum['extra'] = array();//数组
- }
- //版块的情况,不包括分区的情况
- if($forum['type'] != 'group') {//版块数组信息的情况 group-分区 forum-版块
- $threads += $forum['threads'];//主题数量
- $posts += $forum['posts'];//帖子数量
- $todayposts += $forum['todayposts'];//今日发帖数量
- //版块的情况
- if($forum['type'] == 'forum' && isset($catlist[$forum['fup']])) {//版块存在上级分区的情况
- //forum函数的定义位置:"/source/function/function_forumlist.php"函数库文件
- if(forum($forum)) {
- $catlist[$forum['fup']]['forums'][] = $forum['fid'];//分区下的所有的版块id
- /*如下形式:
- * [forums] => Array //当前分区下版块id数组,即是fid数组
- (
- [0] => 2 //娱乐
- [1] => 36 //文化
- [2] => 37 //体育
- [3] => 38 //艺术
- [4] => 39 //商界
- )
- */
- //排序id
- $forum['orderid'] = $catlist[$forum['fup']]['forumscount']++;
- //子版块
- $forum['subforums'] = '';
- $forumlist[$forum['fid']] = $forum;//仅版块数组 $forumlist,可查看桌面$forumlist.txt文件
- }
- } elseif(isset($forumlist[$forum['fup']])) {//$forum['fup']=64 的情况,即:女装版块
- //女装版块下的子版块数组信息
- $forumlist[$forum['fup']]['threads'] += $forum['threads'];//主题数量
- $forumlist[$forum['fup']]['posts'] += $forum['posts'];//帖子数量
- $forumlist[$forum['fup']]['todayposts'] += $forum['todayposts'];//今日发帖数
- if($_G['setting']['subforumsindex'] && $forumlist[$forum['fup']]['permission'] == 2 && !($forumlist[$forum['fup']]['simple'] & 16) || ($forumlist[$forum['fup']]['simple'] & 8)) {
- //绑定的域名
- $forumurl = !empty($forum['domain']) && !empty($_G['setting']['domain']['root']['forum']) ? 'http://'.$forum['domain'].'.'.$_G['setting']['domain']['root']['forum'] : 'forum.php?mod=forumdisplay&fid='.$forum['fid'];
- $forumlist[$forum['fup']]['subforums'] .= (empty($forumlist[$forum['fup']]['subforums']) ? '' : ', ').'<a href="'.$forumurl.'" '.(!empty($forum['extra']['namecolor']) ? ' style="color: ' . $forum['extra']['namecolor'].';"' : '') . '>'.$forum['name'].'</a>';
- }
- }
- } else {//分区的情况,不包含版块的情况
- if($forum['moderators']) {//版主
- $forum['moderators'] = moddisplay($forum['moderators'], 'flat');
- }
- $forum['forumscount'] = 0;
- $catlist[$forum['fid']] = $forum;//分区数组信息
- }
- }
- //销毁不用的数组变量
- unset($forum_access, $forum_fields);
- //循环分区二维数组信息 分区id 一维数组分区信息
- foreach($catlist as $catid => $category) {
- $catlist[$catid]['collapseimg'] = 'collapsed_no.gif';//伸张或收缩图片
- if($catlist[$catid]['forumscount'] && $category['forumcolumns']) {
- $catlist[$catid]['forumcolwidth'] = (floor(100 / $category['forumcolumns']) - 0.1).'%';
- $catlist[$catid]['endrows'] = '';
- if($colspan = $category['forumscount'] % $category['forumcolumns']) {
- while(($category['forumcolumns'] - $colspan) > 0) {
- $catlist[$catid]['endrows'] .= '<td width="'.$catlist[$catid]['forumcolwidth'].'"> </td>';
- $colspan ++;
- }
- $catlist[$catid]['endrows'] .= '</tr>';
- }
- } elseif(empty($category['forumscount'])) {
- unset($catlist[$catid]);
- }
- }
- unset($catid, $category);
- if(isset($catlist[0]) && $catlist[0]['forumscount']) {
- $catlist[0]['fid'] = 0;
- $catlist[0]['type'] = 'group';
- $catlist[0]['name'] = $_G['setting']['bbname'];
- $catlist[0]['collapseimg'] = 'collapsed_no.gif';
- } else {
- unset($catlist[0]);
- }
- if(!IS_ROBOT && ($_G['setting']['whosonlinestatus'] == 1 || $_G['setting']['whosonlinestatus'] == 3)) {
- $_G['setting']['whosonlinestatus'] = 1;
- $onlineinfo = explode(" ", $_G['cache']['onlinerecord']);//在线访问记录.Array ( [0] => 2 [1] => 1378968576 )
- if(empty($_G['cookie']['onlineusernum'])) {//在线用户数
- $onlinenum = C::app()->session->count();
- if($onlinenum > $onlineinfo[0]) {
- $onlinerecord = "$onlinenum ".TIMESTAMP;
- C::t('common_setting')->update('onlinerecord', $onlinerecord);
- savecache('onlinerecord', $onlinerecord);
- $onlineinfo = array($onlinenum, TIMESTAMP);
- }
- dsetcookie('onlineusernum', intval($onlinenum), 300);
- } else {
- $onlinenum = intval($_G['cookie']['onlineusernum']);
- }
- $onlineinfo[1] = dgmdate($onlineinfo[1], 'd');
- $detailstatus = $showoldetails == 'yes' || (((!isset($_G['cookie']['onlineindex']) && !$_G['setting']['whosonline_contract']) || $_G['cookie']['onlineindex']) && $onlinenum < 500 && !$showoldetails);
- $guestcount = $membercount = 0;
- if(!empty($_G['setting']['sessionclose'])) {
- $detailstatus = false;
- $membercount = C::app()->session->count(1);
- $guestcount = $onlinenum - $membercount;
- }
- if($detailstatus) {
- $actioncode = lang('action');
- $_G['uid'] && updatesession();
- $whosonline = array();
- $_G['setting']['maxonlinelist'] = $_G['setting']['maxonlinelist'] ? $_G['setting']['maxonlinelist'] : 500;
- foreach(C::app()->session->fetch_member(1, 0, $_G['setting']['maxonlinelist']) as $online){
- $membercount ++;
- if($online['invisible']) {
- $invisiblecount++;
- continue;
- } else {
- $online['icon'] = !empty($_G['cache']['onlinelist'][$online['groupid']]) ? $_G['cache']['onlinelist'][$online['groupid']] : $_G['cache']['onlinelist'][0];
- }
- $online['lastactivity'] = dgmdate($online['lastactivity'], 't');
- $whosonline[] = $online;
- }
- if(isset($_G['cache']['onlinelist'][7]) && $_G['setting']['maxonlinelist'] > $membercount) {
- foreach(C::app()->session->fetch_member(2, 0, $_G['setting']['maxonlinelist'] - $membercount) as $online){
- $online['icon'] = $_G['cache']['onlinelist'][7];
- $online['username'] = $_G['cache']['onlinelist']['guest'];
- $online['lastactivity'] = dgmdate($online['lastactivity'], 't');
- $whosonline[] = $online;
- }
- }
- unset($actioncode, $online);
- if($onlinenum > $_G['setting']['maxonlinelist']) {
- $membercount = C::app()->session->count(1);
- $invisiblecount = C::app()->session->count_invisible();
- }
- if($onlinenum < $membercount) {
- $onlinenum = C::app()->session->count();
- dsetcookie('onlineusernum', intval($onlinenum), 300);
- }
- $invisiblecount = intval($invisiblecount);
- $guestcount = $onlinenum - $membercount;
- unset($online);
- }
- } else {
- $_G['setting']['whosonlinestatus'] = 0;
- }
- if(defined('FORUM_INDEX_PAGE_MEMORY') && !FORUM_INDEX_PAGE_MEMORY) {
- $key = !IS_ROBOT ? $_G['member']['groupid'] : 'for_robot';
- memory('set', 'forum_index_page_'.$key, array(
- 'catlist' => $catlist,//分区数组列表,不包含版块,此数组对应版块扩展表及版块表-pre_forum_forumfield、pre_forum_forum的字段
- 'forumlist' => $forumlist,//无下级版块的版块信息数组
- 'sublist' => $sublist,//子版块列表
- 'whosonline' => $whosonline,//谁在线
- 'onlinenum' => $onlinenum,//在线人数
- 'membercount' => $membercount,//会员数
- 'guestcount' => $guestcount,//游客数
- 'announcements' => $announcements,//公告
- 'threads' => $threads,//主题数
- 'posts' => $posts,//帖子数
- 'todayposts' => $todayposts,//今天发表帖子数
- 'onlineinfo' => $onlineinfo,//在线信息
- 'announcepm' => $announcepm), getglobal('setting/memory/forumindex'));
- }
- } else {
- require_once DISCUZ_ROOT.'./source/include/misc/misc_category.php';
- }
- if(defined('IN_ARCHIVER')) {
- include loadarchiver('forum/discuz');
- exit();
- }
- //版块伸张或收缩
- categorycollapse();
- /*
- * 1、gid-分区id不为空的情况,如果gid为空时,不会执行下面if...else...中的代码段
- * 2、$catlist:查看桌面
- echo "<pre>";
- print_r($catlist);
- exit;
- * 3、$_G['category']全局变量的生成
- * 4、$_G['fid']全局变量的生成
- */
- //gid不为空的情况
- if($gid && !empty($catlist)) {//当前分区版块
- $_G['category'] = $catlist[$gid];//gid-分区id 当前分区数组数据,包括所有的子版块fid
- $forumseoset = array(//当前分区的SEO设置
- 'seotitle' => $catlist[$gid]['seotitle'],//分区SEO标题
- 'seokeywords' => $catlist[$gid]['keywords'],//分区SEO关键字
- 'seodescription' => $catlist[$gid]['seodescription']//分区SEO描述
- );
- $seodata = array('fgroup' => $catlist[$gid]['name']);//当前分区名称
- //生成当前分区的SEO信息
- list($navtitle, $metadescription, $metakeywords) = get_seosetting('threadlist', $seodata, $forumseoset);
- if(empty($navtitle)) {
- $navtitle = $navtitle_g;
- $nobbname = false;
- } else {//默认执行
- $nobbname = true;
- }
- $_G['fid'] = $gid;//当前分区id
- }
- /*
- * 1、对应模板文件:/data/diy/forum/discuz.htm 或者 /template/default/forum/discuz.htm,两者选其一
- * 2、使用template()函数显示已经存在的模板
- * 3、格式 include template("模板文件夹/模板名称无后缀");的方式进行解析
- * 4、在 source/function/function_core.php文件中定义
- * 5、如:include template('forum/mytest'); //使用自定义模板套系中的forum目录的mytest.htm
- */
- include template('diy:forum/discuz:'.$gid);//结果:template("diy:forum/discuz:0")
- /*
- * 1、获取首页公告
- */
- function get_index_announcements() {
- global $_G;//超级全局变量
- $announcements = '';//公告变量
- if($_G['cache']['announcements']) {//公告数组
- $readapmids = !empty($_G['cookie']['readapmid']) ? explode('D', $_G['cookie']['readapmid']) : array();
- foreach($_G['cache']['announcements'] as $announcement) {
- //公告结束时间不为空,公告结束时间大于当前时间
- if(!$announcement['endtime'] || $announcement['endtime'] > TIMESTAMP && (empty($announcement['groups']) || in_array($_G['member']['groupid'], $announcement['groups']))) {
- if(empty($announcement['type'])) {//公告类型为空的情况
- $announcements .= '<li><span><a href="forum.php?mod=announcement&id='.$announcement['id'].'" target="_blank" class="xi2">'.$announcement['subject'].
- '</a></span><em>('.dgmdate($announcement['starttime'], 'd').')</em></li>';
- } elseif($announcement['type'] == 1) {//公告类型为1的情况
- $announcements .= '<li><span><a href="'.$announcement['message'].'" target="_blank" class="xi2">'.$announcement['subject'].
- '</a></span><em>('.dgmdate($announcement['starttime'], 'd').')</em></li>';
- }
- }
- }
- }
- return $announcements;
- }
- /*
- * 1、获取游客数据缓存
- */
- function get_index_page_guest_cache() {
- global $_G;
- $indexcache = getcacheinfo(0);
- if(TIMESTAMP - $indexcache['filemtime'] > $_G['setting']['cacheindexlife']) {
- @unlink($indexcache['filename']);
- define('CACHE_FILE', $indexcache['filename']);
- } elseif($indexcache['filename']) {
- @readfile($indexcache['filename']);
- $updatetime = dgmdate($indexcache['filemtime'], 'H:i:s');
- $gzip = $_G['gzipcompress'] ? ', Gzip enabled' : '';
- echo "<script type="text/javascript">
- if($('debuginfo')) {
- $('debuginfo').innerHTML = '. This page is cached at $updatetime $gzip .';
- }
- </script>";
- exit();
- }
- }
- /*
- * 1、获取论坛首页缓存
- */
- function get_index_memory_by_groupid($key) {
- $enable = getglobal('setting/memory/forumindex');
- if($enable !== null && memory('check')) {
- if(IS_ROBOT) {
- $key = 'for_robot';
- }
- $ret = memory('get', 'forum_index_page_'.$key);
- define('FORUM_INDEX_PAGE_MEMORY', $ret ? 1 : 0);
- if($ret) {
- return $ret;
- }
- }
- return array('none' => null);
- }
- /*
- * 1、获取首页在线信息详情
- */
- function get_index_online_details() {
- $showoldetails = getgpc('showoldetails');
- switch($showoldetails) {
- case 'no': dsetcookie('onlineindex', ''); break;
- case 'yes': dsetcookie('onlineindex', 1, 86400 * 365); break;
- }
- return $showoldetails;
- }
- /*
- * 1、版块绑定的域名
- */
- function do_forum_bind_domains() {
- global $_G;
- if($_G['setting']['binddomains'] && $_G['setting']['forumdomains']) {
- $loadforum = isset($_G['setting']['binddomains'][$_SERVER['HTTP_HOST']]) ? max(0, intval($_G['setting']['binddomains'][$_SERVER['HTTP_HOST']])) : 0;
- if($loadforum) {
- dheader('Location: '.$_G['setting']['siteurl'].'/forum.php?mod=forumdisplay&fid='.$loadforum);
- }
- }
- }
- //版块伸张或收缩功能函数
- function categorycollapse() {
- global $_G, $collapse, $catlist;
- if(!$_G['uid']) {
- return;
- }
- //此时 fid-分区id forum-可以查看桌面
- //如果是首页,那么就会有多个分区
- foreach($catlist as $fid => $forum) {
- if(!isset($_G['cookie']['collapse']) || strpos($_G['cookie']['collapse'], '_category_'.$fid.'_') === FALSE) {
- $catlist[$fid]['collapseimg'] = 'collapsed_no.gif';
- $collapse['category_'.$fid] = '';
- } else {
- $catlist[$fid]['collapseimg'] = 'collapsed_yes.gif';//伸展或收缩图片
- $collapse['category_'.$fid] = 'display: none';//跟html标签的id属性值有关
- }
- }
- if(!isset($_G['cookie']['collapse']) || strpos($_G['cookie']['collapse'], '_category_0_') === FALSE) {
- $collapse['collapseimg_0'] = 'collapsed_no.gif';//伸展或收缩图片
- $collapse['category_0'] = '';
- } else {
- $collapse['collapseimg_0'] = 'collapsed_yes.gif';//伸展或收缩图片
- $collapse['category_0'] = 'display: none';
- }
- }
- ?>