pcfuncs.php

KBS的BBS源码

	if ($oldmodified!="") {
		if (($pos = strpos($oldmodified, ';')) !== false)
			$oldmodified = substr($oldmodified, 0, $pos);
        $oldtime=strtotime($oldmodified);
	} else $oldtime=0;
	if ($modifytime - $oldtime < 60 * $updatetime ) {
		header("HTTP/1.1 304 Not Modified");
	        header("Cache-Control: max-age=" . "$expiretime");
		return TRUE;
	}
	header("Last-Modified: " . gmdate("D, d M Y H:i:s", $modifytime) . " GMT");
	header("Expires: " . gmdate("D, d M Y H:i:s", $modifytime+$expiretime) . " GMT");
	header("Cache-Control: max-age=" . "$expiretime");
	return FALSE;
}

function pc_logs($link , $action , $comment = "" , $pri_id = "" , $sec_id = "")
{
	global $currentuser;
	if( !$action ) 
		return FALSE;
	
	$query = "INSERT INTO `logs` ( `lid` , `username` , `hostname` , `ACTION` , `pri_id` , `sec_id` , `COMMENT` , `logtime` )".
		"VALUES ('', '".addslashes($currentuser[userid])."', '".addslashes($_SERVER["REMOTE_ADDR"])."', '".addslashes($action)."', '".addslashes($pri_id)."', '".addslashes($sec_id)."', '".addslashes($comment)."', NOW( ) );";
	mysql_query($query,$link);
	return TRUE;
}

function pc_counter($link)
{
	global $pc,$currentuser;
	if(!$pc || !is_array($pc))
		return FALSE;
	@$visitcount = $_COOKIE["BLOGVISITCOUNT"];
	$action = $currentuser["userid"]." visit ".$pc["USER"]."'s Blog(www)";
	if(!$visitcount)
	{
		/*
		$query = "SELECT UNIX_TIMESTAMP(logtime) FROM logs WHERE hostname = '".addslashes($_SERVER["REMOTE_ADDR"])."' AND username = '".addslashes($currentuser[userid])."' AND pri_id = '".addslashes($pc["USER"])."' ORDER BY lid DESC LIMIT 0,1;";
		$result = mysql_query($query,$link);
		$rows = mysql_fetch_row($result);
		mysql_free_result($result);
		if( !$rows )
		{
		*/
			pc_visit_counter($link,$pc["UID"]);//计数器加1
			//pc_logs($link,$action,"",$pc["USER"]);//记一下访问日志
			$pc["VISIT"] ++;
			$visitcount = ",".$pc["UID"].",";
			setcookie("BLOGVISITCOUNT",$visitcount);
			return;
		/*
		}
		elseif( time () - $rows[0] > 3600 )//1个小时log一次 
		{
			pc_visit_counter($link,$pc["UID"]);//计数器加1
			pc_logs($link,$action,"",$pc["USER"]);//记一下访问日志
			$pc["VISIT"] ++;
			$visitcount = ",".$pc["UID"].",";
			setcookie("BLOGVISITCOUNT",$visitcount);
			return;
		}
		else
			return;
		*/
	}
	elseif(!stristr($visitcount,",".$pc["UID"].","))
	{
		pc_visit_counter($link,$pc["UID"]);//计数器加1
		//pc_logs($link,$action,"",$pc["USER"]);//记一下访问日志
		$pc["VISIT"] ++;
		$visitcount .= $pc["UID"].",";
		setcookie("BLOGVISITCOUNT",$visitcount);
		return;
	}	
}

function pc_node_counter($link,$nid)
{
	$query = "UPDATE nodes SET visitcount = visitcount + 1 , changed  = changed  WHERE `nid` = '".$nid."' ;";
	mysql_query($query,$link);
}

function pc_ncounter($link,$nid)
{
	if(!@$_COOKIE["BLOGREADNODES"])
	{
		$readnodes = ",".$nid.",";
		setcookie("BLOGREADNODES",$readnodes);
		pc_node_counter($link,$nid);
	}
	elseif(!stristr($_COOKIE["BLOGREADNODES"],",".$nid.","))
	{
		$readnodes = $_COOKIE["BLOGREADNODES"] . $nid.",";
		setcookie("BLOGREADNODES",$readnodes);
		pc_node_counter($link,$nid);
	}
}

/*
**	0: XSL 
**	1: CSS
*/
function pc_load_stylesheet($link,$pc)
{
	$query = "SELECT stylesheet FROM userstyle WHERE uid = '".$pc["UID"]."' LIMIT 0 , 1;";	
	$result = mysql_query($query,$link);
	$rows = mysql_fetch_array($result);
	if(!$rows)
		return FALSE;
	return intval($rows[stylesheet]);
}

function html_format_fix_length($str,$length)
{
	if(strlen($str) <= $length )
		return $str;
	$str = substr($str,0,$length);
	$str .= "...";
	return $str;	
}

function myAddslashes($str)
{
    $str = addslashes($str);
    $str = str_replace("_","\_",$str);
    $str = str_replace("%","\%",$str);
    return $str;
}

function pc_load_topic($link,$uid,$tid,&$topicname,$access=9)
{
	$uid = intval($uid);
	$tid = intval($tid);
	$access = intval($access);
	
	if($access == 9)
		$query = "SELECT topicname FROM topics WHERE tid = ".$tid." AND uid = ".$uid." LIMIT 0 , 1;";
	else
		$query = "SELECT topicname FROM topics WHERE tid = ".$tid." AND uid = ".$uid." AND access = ".$access." LIMIT 0 , 1;";
	$result = mysql_query($query,$link);
	$rows = mysql_fetch_array($result);
	if(!$rows)
		return FALSE;
	
	mysql_free_result($result);
	$topicname = $rows["topicname"];
	return $tid;
}

function pc_load_directory($link,$uid,$pid)
{
	$uid = intval($uid);
	$pid = intval($pid);
	
	$query = "SELECT `nid` FROM nodes WHERE `uid` = '".$uid."' AND `access` = 3 AND `nid` = '".$pid."' AND `type` = 1 LIMIT 1;";
	$result = mysql_query($query,$link);
	$rows = mysql_fetch_array($result);
	if(!$rows)
		return FALSE;
	
	mysql_free_result($result);
	return TRUE;
}

/*
**  auto-detect trackback pings from a text
*/
function pc_detect_trackbackpings($body,&$detecttbps,$tbpUrl)
{
	$text = $body;
	$text = undo_html_format(trim($text)); 
	$text = str_replace("'"," ",str_replace("\""," ",stripslashes($text)));     //convert " and ' to nth
	
	$detecttbps = array();
	$detectnids = array();
	$detectnum  = 0;
	
	preg_match_all("/[b\/]([^\/]+)\/pc\/pccon.php\?\id\=([0-9]+)&n\id\=([0-9]+)/i",$text,$matches);
	
	for($i=0; $i< count($matches[0]); $i++)
	{
		if($detectnids[intval($matches[3][$i])])
			continue;
		$detectnids[intval($matches[3][$i])] = 1;
		$url = "http://".$matches[1][$i]."/pc/tb.php?id=".intval($matches[3][$i]);
		if ($url != $tbpUrl) {
		    $detecttbps[] = $url;
		    $detectnum ++ ;
		}
	}
	return $detectnum;
}

/*
** add a node
** $pc  : pc infor-->load by pc_load_infor() function
** return  0  :seccess
**         -1 :缺少主题
**         -2 :收藏夹目录不存在
**         -3 :目标文件夹超过文章上限
**         -4 :目标分类不存在
**         -5 :数据库添加错误
**         -6 :系统错误导致引用通告发送失败
**         -7 :引用通告的url错误
**         -8 :引用通告目标服务器连接超时
**         -9 :被审核
**         -10:群体Blog缺少发布者
*/
function pc_add_node($link,$pc,$pid,$tid,$emote,$comment,$access,$htmlTag,$trackback,$theme,$subject,$body,$nodeType,$autodetecttbp,$tbpUrl,$tbpArt,$convert_encoding,$filtered,$address,$publisher)
{
	global $pcconfig,$support_encodings,$sending_encoding;
	
	$pid = intval($pid);
	$tid = intval($tid);
	$emote = intval($emote);
	$comment = ($comment==1)?1:0;
	$access = intval($access);
	$htmlTag = ($htmlTag==1)?1:0;
	$trackback = ($trackback==1)?1:0;
	$subject = addslashes(trim($subject));
	$body = html_editorstr_format(trim($body));
	$nodeType = intval($nodeType); //0: 普通;1: log,不可删除
	
    if ($convert_encoding) {
	    if (!strstr($support_encodings,$convert_encoding))
	        $convert_encoding = $sending_encoding;
	}
	else
	    $convert_encoding = $sending_encoding;
	    
	if(!$pc || !is_array($pc))
		return FALSE;
	
	if(!$subject) //检查主题
		return -1;
	
	if($access < 0 || $access > 4 )
		$access = 2;//如果参数错误先在私人区发表
	
	if($access == 3) //若是发表在收藏区，检查目标文件夹
	{
		if(!pc_load_directory($link,$pc["UID"],$pid))
			return -2;
		if(pc_used_space($link,$pc["UID"],3,$pid) >= $pc["NLIM"]) //目标文件夹使用空间
			return -3;
		$tid = 0;
	}
	else
	{
		$pid = 0;
		if(pc_used_space($link,$pc["UID"],$access) >= $pc["NLIM"]) //目标文件夹使用空间
			return -3;
		if($tid != 0) //如果是发布在一个分类下面，需要检查分类
		{
			if(!pc_load_topic($link,$pc["UID"],$tid,$topicname,$access))
				return -4;
		}
	}
	
	if($access != 0) //公开区以外不发布引用通告
	{
		$tbpUrl = "";
		$autodetecttbp = FALSE;
	}
	
	$into_filter = false;
	if (!$filtered) //未经过过滤检查的要先检查一次
	    if (bbs_checkbadword($subject) || bbs_checkbadword($body))
	        $into_filter = true;
	
	if (!pc_is_groupwork($pc))
        $publisher = "";
    elseif (!$publisher)
        return -10;
    else
        ;
	
	if (!$into_filter) {
    	if($tbpUrl && pc_tbp_check_url($tbpUrl) && $tbpArt) //若有引用通告的相关文章，加上链接
    	{
    		if($htmlTag)
    			$body .= "<br /><br /><strong>相关文章</strong><br />\n".
    			         "<a href='".$tbpArt."'>".$tbpArt."</a>";
    		else
    			$body .= "\n\n[相关文章]\n".$tbpArt;
    		
    	}
    	if (pc_is_groupwork($pc)) { //群体BLOG文章要加一个头
    	    $body = pc_groupwork_addhead($pc,$body,$htmlTag,$publisher);
    	}
    }
        
    if (!isset($pcconfig["SECTION"][$theme]))
        $theme = "others";
    
    $theme = addslashes($theme);
    $body = addslashes($body);
	if (!$address) $address = $_SERVER["REMOTE_ADDR"];
	//日志入库
	if ($into_filter)
	    $query = "INSERT INTO `filter` (  `pid` , `nid` , `tid` , `type` , `state` , `recuser` , `emote` , `hostname` , `changed` , `created` , `uid` , `username` , `comment` , `commentcount` , `subject` , `body` , `access` , `visitcount` , `htmltag`,`trackback` ,`trackbackcount`,`nodetype`,`tbp_url`,`tbp_art`,`auto_tbp`,`tbpencoding`,`theme`,`publisher`) ".
	   	     "VALUES ( '".$pid."', 0 , '".$tid."' , '0', '0' , '', '".$emote."' ,  '".addslashes($_SERVER["REMOTE_ADDR"])."',NOW( ) , NOW( ), '".$pc["UID"]."' , '".addslashes($pc["USER"])."' , '".$comment."', '0', '".$subject."', '".$body."', '".$access."', '0' , '".$htmlTag."' ,'".$trackback."','0','".$nodeType."','".addslashes($tbpUrl)."','".addslashes($tbpArt)."','".intval($autodetecttbp)."','".addslashes($convert_encoding)."','".$theme."','".addslashes($publisher)."');";
	else
	    $query = "INSERT INTO `nodes` (  `pid` , `tid` , `type` , `recuser` , `emote` , `hostname` , `changed` , `created` , `uid` , `comment` , `commentcount` , `subject` , `body` , `access` , `visitcount` , `htmltag`,`trackback` ,`trackbackcount`,`nodetype`,`theme`,`publisher`) ".
	   	     "VALUES ( '".$pid."', '".$tid."' , '0', '', '".$emote."' ,  '".addslashes($address)."',NOW( ) , NOW( ), '".$pc["UID"]."', '".$comment."', '0', '".$subject."', '".$body."', '".$access."', '0' , '".$htmlTag."' ,'".$trackback."','0','".$nodeType."','".$theme."','".addslashes($publisher)."');";
	
	if(!mysql_query($query,$link))
		return -5;
	
	//公开区文章发布后更新文章数
	if (!$into_filter)
    	if($access == 0)
    		pc_update_record($link,$pc["UID"],"+1");
	
	if (!$into_filter) {
    	$detectnum = 0;
    	if($autodetecttbp) //自动发掘引用通告
    	{
    		$detecttbps = array();
    		$detectnum  = pc_detect_trackbackpings($body,$detecttbps,$tbpUrl);
    	}
    	if($tbpUrl || $detectnum) //发送引用通告前提取NID
    	{
    		//提取日志的nid
            $query = "SELECT `nid` FROM nodes WHERE `subject` = '".$subject."' AND `body` = '".$body."' AND `uid` = '".$pc["UID"]."' AND `access` = '".$access."' AND `pid` = '".$pid."' AND `tid` = '".$tid."' ORDER BY nid DESC LIMIT 0,1;";
            $result = mysql_query($query,$link);   
            $rows = mysql_fetch_array($result);   
    
            if(!$rows)   
                 return -6;   
    
            $thisNid = $rows[nid];   
            mysql_free_result($result);   
  

    		if($htmlTag)
    			$tbbody = undo_html_format(strip_tags(stripslashes($body)));
    		else
    			$tbbody = stripslashes($body);
    		
    		if(strlen($tbbody) > 255 )
    			$tbbody = substr($tbbody,0,251)." ...";
    		
    		$subject = stripslashes($subject);
    		$blogname = undo_html_format($pc["NAME"]);
    		
    		if ($pcconfig["ENCODINGTBP"]) {
                iconv_set_encoding("internal_encoding", $convert_encoding);
                iconv_set_encoding("output_encoding", $convert_encoding);
                $subject =  iconv ($default_encoding,$convert_encoding,$subject);
                $tbbody =   iconv ($default_encoding,$convert_encoding,$tbbody);
                $blogname = iconv ($default_encoding,$convert_encoding,$blogname);
            }

            $tbarr = array(
    				"title" => $subject,
    				"excerpt" => $tbbody,
    				"url" => "http://".$pcconfig["SITE"]."/pc/pccon.php?id=".$pc["UID"]."&tid=".$tid."&nid=".$thisNid."&s=all",
    				"blogname" => $blogname
    				);	
    		
    		if($tbpUrl) //发送引用通告
    			pc_tbp_trackback_ping($tbpUrl,$tbarr);
    		for($i = 0 ; $i < $detectnum ; $i ++) //发送自动发掘的引用通告
    		{
    			pc_tbp_trackback_ping($detecttbps[$i],$tbarr);
    		}
    	}
	}
	if ($into_filter)
	    return -9;
	else
    	return 0;
}

//群体blog添加头
function pc_groupwork_addhead($pc,$body,$htmltag,$publisher) {
    if ($htmltag)
        $ret = '<p align="right"><a href="/bbsqry.php?userid='.$publisher.'"><font class="f2">发布者: '.$publisher.'</font></a>&nbsp;&nbsp;&nbsp;&nbsp;</p>';
    else
        $ret = '                                 发布者: '.$publisher.'   \n';
    $ret .= $body;
    /*
    if ($htmltag)
        $ret .= '<p align="center">[<a href="/bbsqry.php?userid='.$publisher.'">'.$publisher.'</a>@<a href="index.php?id='.$pc['USER'].'">'.html_format($pc['NAME']).'</a>]</p>';
    else
        $ret .= '          '.$publisher.'@'.$pc['NAME'].'   \n';
    */
    return $ret;
}

//获取收藏夹根目录的pid
function pc_fav_rootpid($link,$uid)
{
	$query = "SELECT `nid` FROM nodes WHERE `access` = '3' AND  `uid` = '".intval($uid)."' AND `pid` = '0' AND `type` = '1' LIMIT 0 , 1 ;";
	$result = mysql_query($query,$link);
	$rows = mysql_fetch_array($result);
	if(!$rows)
		return FALSE;
	mysql_free_result($result);	
	return $rows["nid"];
}

//一个Blog是否为群体BLOG
/*
pctype字段:

参数   类型(0:普通;1:公有)  用户统计  文章(含评论)统计  新文章(评论)统计(含RSS)
 0             0               1              1                 1
 1             1               1              1                 1
 2             0               0              1                 1
 3             1               0              1                 1
 4             0               0              0                 1
 5             1               0              0                 1
 6             0               0              0                 0
 7             1               0              0                 0
*/
function pc_is_groupwork($pc)
{
	if(!$pc || !is_array($pc))
		return FALSE;
	if($pc["TYPE"] == 1 || $pc["TYPE"] == 3 || $pc["TYPE"] == 5  || $pc["TYPE"] == 7)