discuz源代码详解（8）.doc

discuz源代码详解（8）2009-03-07 14:49以下内容为程序代码:/同样，防止非法引用用的。if(!defined(IN_DISCUZ) exit(Access Denied);以下内容为程序代码:/* 这个函数看着很长，其实要实现的功能很少，就是通过ip地址返回一个对应的地理位置* para string $ip /给定的ip，要符合点分十进制* * return string */function convertip($ip) if(!preg_match(/d1,3.d1,3.d1,3.d1,3$/, $ip) return ; if($fd = fopen(DISCUZ_ROOT./ipdata/wry.dat, rb) $ip = explode(., $ip); $ipNum = $ip0 * 16777216 + $ip1 * 65536 + $ip2 * 256 + $ip3; $DataBegin = fread($fd, 4); $DataEnd = fread($fd, 4); $ipbegin = implode(, unpack(L, $DataBegin); if($ipbegin 0) $ipbegin += pow(2, 32); $ipend = implode(, unpack(L, $DataEnd); if($ipend $ipNum | $ip2num $ipNum) $Middle= intval($EndNum + $BeginNum) / 2); fseek($fd, $ipbegin + 7 * $Middle); $ipData1 = fread($fd, 4); if(strlen($ipData1) 4) fclose($fd); return - System Error; $ip1num = implode(, unpack(L, $ipData1); if($ip1num $ipNum) $EndNum = $Middle; continue; $DataSeek = fread($fd, 3); if(strlen($DataSeek) 3) fclose($fd); return - System Error; $DataSeek = implode(, unpack(L, $DataSeek.chr(0); fseek($fd, $DataSeek); $ipData2 = fread($fd, 4); if(strlen($ipData2) 4) fclose($fd); return - System Error; $ip2num = implode(, unpack(L, $ipData2); if($ip2num 0) $ip2num += pow(2, 32); if($ip2num $ipNum) if($Middle = $BeginNum) fclose($fd); return - Unknown; $BeginNum = $Middle; $ipFlag = fread($fd, 1); if($ipFlag = chr(1) $ipSeek = fread($fd, 3); if(strlen($ipSeek) 3) fclose($fd); return - System Error; $ipSeek = implode(, unpack(L, $ipSeek.chr(0); fseek($fd, $ipSeek); $ipFlag = fread($fd, 1); if($ipFlag = chr(2) $AddrSeek = fread($fd, 3); if(strlen($AddrSeek) 3) fclose($fd); return - System Error; $ipFlag = fread($fd, 1); if($ipFlag = chr(2) $AddrSeek2 = fread($fd, 3); if(strlen($AddrSeek2) 3) fclose($fd); return - System Error; $AddrSeek2 = implode(, unpack(L, $AddrSeek2.chr(0); fseek($fd, $AddrSeek2); else fseek($fd, -1, SEEK_CUR); while($char = fread($fd, 1) != chr(0) $ipAddr2 .= $char; $AddrSeek = implode(, unpack(L, $AddrSeek.chr(0); fseek($fd, $AddrSeek); while($char = fread($fd, 1) != chr(0) $ipAddr1 .= $char; else fseek($fd, -1, SEEK_CUR); while($char = fread($fd, 1) != chr(0) $ipAddr1 .= $char; $ipFlag = fread($fd, 1); if($ipFlag = chr(2) $AddrSeek2 = fread($fd, 3); if(strlen($AddrSeek2) 3) fclose($fd); return - System Error; $AddrSeek2 = implode(, unpack(L, $AddrSeek2.chr(0); fseek($fd, $AddrSeek2); else fseek($fd, -1, SEEK_CUR); while($char = fread($fd, 1) != chr(0) $ipAddr2 .= $char; fclose($fd); if(preg_match(/http/i, $ipAddr2) $ipAddr2 = ; $ipaddr = $ipAddr1 $ipAddr2; $ipaddr = preg_replace(/CZ88.NET/is, , $ipaddr); $ipaddr = preg_replace(/s*/is, , $ipaddr); $ipaddr = preg_replace(/s*$/is, , $ipaddr); if(preg_match(/http/i, $ipaddr) | $ipaddr = ) $ipaddr = - Unknown; return - .$ipaddr; else $datadir = DISCUZ_ROOT./ipdata/; $ip_detail = explode(., $ip); if(file_exists($datadir.$ip_detail0.txt) $ip_fdata = fopen($datadir.$ip_detail0.txt, r); else if(!($ip_fdata = fopen($datadir.0.txt, r) return - Invalid IP data file; for($i = 0; $i = $ip_data_detail0 & $ip $threadviews) $threadviews = $threadreplies; $postsnum = $threadreplies + 1; $pagelinks = ; if($postsnum $ppp) $posts = $postsnum; $topicpages = ceil($posts / $ppp); for($i = 1; $i = $topicpages; $i+) $pagelinks .= .$i. ; if($i = 6) $i = $topicpages + 1; if($topicpages 6) $pagelinks .= . .$topicpages. ; $threadmultipage = ( .$pagelinks.); else $threadmultipage = ; if($threadhighlight) $string = sprintf(%02d, $threadhighlight); $stylestr = sprintf(%03b, $string0); $threadhighlight = style=; $threadhighlight .= $stylestr0 ? font-weight: bold; : ; $threadhighlight .= $stylestr1 ? font-style: italic; : ; $threadhighlight .= $stylestr2 ? text-decoration: underline; : ; $threadhighlight .= $string1 ? color: .$colorarray$string1 : ; $threadhighlight .= ; else $threadhighlight = ; if($threadattachment) require_once DISCUZ_ROOT./include/attachment.func.php; $threadattachment = attachtype($threadattachment). ; else $threadattachment = ; return $thread;以下内容为程序代码:/* 用来更新点击数的* para string $table /用来更新的数据表* para string $idcol /用来更新的数据的id* para string $viewscol /用来更新的列* para string $logfile /日志文件，点击是写入日志的*/function updateviews($table, $idcol, $viewscol, $logfile) global $db, $tablepre; $viewlog = $viewarray = array(); if($viewlog = file($logfile = DISCUZ_ROOT.$logfile) unlink($logfile); $viewlog = array_count_values($viewlog); foreach($viewlog as $id = $views) $viewarray$views .= ($id 0) ? ,.intval($id) : ; foreach($viewarray as $views = $ids) $db-query(UPDATE $tablepre$table SET $viewscol=$viewscol+$views WHERE $idcol IN (0$ids), UNBUFFERED); 以下内容为程序代码:/* 给版主的工作写入日志的* para array $thread /对哪个帖子的操作* para string $action /进行的什么操作*/function modlog($thread, $action) global $discuz_user, $adminid, $onlineip, $timestamp, $forum, $reason; writelog(modslog, dhtmlspecialchars($timestampt$discuz_usert$adminidt$onlineipt$forumfidt$forumnamet$threadtidt$threadsubjectt$actiont$reason);以下内容为程序代码:/* 检查是不是写了理由* */function checkreasonpm() global $reason; $reason = trim(strip_tags($reason); if($GLOBALSreasonpm = 1 | $GLOBALSreasonpm = 3) & !$reason) showmessage(admin_reason_invalid); 以下内容为程序代码:/* 发送操作理由报告给帖子作者* para array $var* para string $item*/function sendreasonpm($var, $item) global $var; $varsubject = strtr($varsubject, array_flip(get_html_translation_table(HTML_ENTITIES); $vardateline = gmdate($GLOBALS_DCACHEsettingsdateformat. .$GLOBALS_DCACHEsettingstimeformat, $vardateline + ($GLOBALStimeoffset * 3600); sendpm($varauthorid, $item._subject, $item._message);以下内容为程序代码:/* 得到一个下拉列表，这个列表是版主操作理由选择* * return string $select */function modreasonselect() global $_DCACHE; if(!isset($_DCACHEmodreasons) | !is_array($_DCACHEmodreasons) include DISCUZ_ROOT./forumdata/cache/cache_topicadmin.php; $select = ; foreach($_DCACHEmodreasons as $reason) $select .= $reason ? .$reason. : -; return $select;以下内容为程序代码:/* 登陆检查，看看是不是在十五分钟已经登陆五次了* return int*/function logincheck() global $