request.func.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: request.func.php 16936 2008-11-28 03:17:54Z monkey $
*/

if(!defined('IN_DISCUZ')) {
        exit('Access Denied');
}

function parse_request($requestdata, $cachefile, $mode, $specialfid = 0, $key = '') {
	global $_DCACHE;

	$requesttemplate = '';
	$nocachedata = array();
	$requestcachelife = (isset($requestdata['cachelife']) && $requestdata['cachelife'] !== '') ? $requestdata['cachelife'] : (isset($_DCACHE['settings']['jscachelife']) ? $_DCACHE['settings']['jscachelife'] : 1800);
	!empty($requestdata['jstemplate']) && $requesttemplate = stripslashes($requestdata['jstemplate']);
	get_magic_quotes_gpc() && $requesttemplate = stripslashes($requesttemplate);
	$nocache = !empty($requestdata['nocache']) ? 1 : 0;
	$mode && $requestcharset = $requestdata['jscharset'];

	if(!in_array($requestdata['function'], array('custom', 'side'))) {
		$requesttemplatebody = '';
		if(preg_match("/\[node\](.+?)\[\/node\]/is", $requesttemplate, $node)) {
			$requesttemplatebody = $requesttemplate;
			$requesttemplate = $node[1];
		}

		$parsedata = updaterequest($requestdata, $requesttemplatebody, $requesttemplate, $specialfid, $mode, $key, $nocache);
		if($mode) {
			$datalist = $writedata = jsprocdata($parsedata, $requestcharset);
		} else {
			$datalist = $writedata = $parsedata;
		}
	} else {
		$requestcachelife = (isset($requestdata['cachelife']) && $requestdata['cachelife'] != '') ? $requestdata['cachelife'] : (isset($_DCACHE['settings']['jscachelife']) ? $_DCACHE['settings']['jscachelife'] : 1800);
		$writedata = preg_match_all("/\[module\](.+?)\[\/module\]/s", $requesttemplate, $modulelist);
		$modulelist = array_unique($modulelist[1]);
		$datalist = $writedata = $requesttemplate = str_replace('\"', '"', $requesttemplate);

		foreach($modulelist as $key) {
			$find = '[module]'.$key.'[/module]';
			if(!empty($_DCACHE['request'][$key]['url'])) {
				parse_str($_DCACHE['request'][$key]['url'], $requestdata);
				$function = isset($requestdata['function']) ? $requestdata['function'] : NULL;
				$requesttemplate = $requestdata['jstemplate'];
				!empty($requesttemplate) && $requesttemplate = stripslashes($requesttemplate);
				get_magic_quotes_gpc() && $requesttemplate = stripslashes($requesttemplate);
				$requesttemplatebody = '';
				if(preg_match("/\[node\](.+?)\[\/node\]/is", $requesttemplate, $node)) {
					$requesttemplatebody = $requesttemplate;
					$requesttemplate = $node[1];
				}
				$modulenocache = 0;
				$parsedata = updaterequest($requestdata, $requesttemplatebody, $requesttemplate, $specialfid, $mode, $key, $modulenocache);
				$datalist = str_replace($find, $parsedata, $datalist);

				if($modulenocache || $requestdata['cachelife'] === '0') {
					$nocachedata[$key] = '[module]'.$key.'[/module]';
					$writedata = str_replace($find, $nocachedata[$key], $writedata);
				} else {
					$writedata = str_replace($find, $parsedata, $writedata);
				}
			}
		}

		if($mode) {
			$datalist = jsprocdata($datalist, $requestcharset);
			$writedata = jsprocdata($writedata, $requestcharset);
		}
	}

	$writedata = addcslashes($writedata, "'\\");

	if(!$nocache) {
		$writedata = "\$datalist = '".$writedata."';";
		if($nocachedata) {
			$writedata .= "\n\$nocachedata = ".var_export($nocachedata, 1).';';
		}
		writetorequestcache($cachefile, $requestcachelife, $writedata);
	}
	if($mode) {
		return $datalist;
	} else {
		return eval("return '".addcslashes($datalist, "'\\")."';");
	}
}

function updaterequest($requestdata, $requesttemplatebody, $requesttemplate, $specialfid, $mode, $key, &$nocache) {
	global $db, $tablepre, $timestamp, $boardurl, $dateformat, $timeformat, $rewritestatus, $uc, $_DCACHE;

	$function = $requestdata['function'];
	$fids = isset($requestdata['fids']) ? $requestdata['fids'] : NULL;
	$startrow = isset($requestdata['startrow']) ? intval($requestdata['startrow']) : 0;
	$items = isset($requestdata['items']) ? intval($requestdata['items']) : 10;
	$digest = isset($requestdata['digest']) ? intval($requestdata['digest']) : 0;
	$stick = isset($requestdata['stick']) ? intval($requestdata['stick']) : 0;
	$newwindow = isset($requestdata['newwindow']) ? $requestdata['newwindow'] : 1;
	$LinkTarget = $newwindow == 1 ? " target='_blank'" : ($newwindow == 2 ? " target='main'" : NULL);
	$sidestatus = !empty($requestdata['sidestatus']) ? 1 : 0;
	$boardurl = $mode ? $boardurl : '';

	if($function == 'threads') {
		$orderby = isset($requestdata['orderby']) ? (in_array($requestdata['orderby'],array('lastpost','dateline','replies','views','hourviews','todayviews','weekviews','monthviews')) ? $requestdata['orderby'] : 'lastpost') : 'lastpost';
		$hours	 = isset($requestdata['hours']) ? intval($requestdata['hours']) : 0;
		$highlight = isset($requestdata['highlight']) ? $requestdata['highlight'] : 0;
		$picpre = isset($requestdata['picpre']) ? urldecode($requestdata['picpre']) : NULL;
		$maxlength = !empty($requestdata['maxlength']) ? intval($requestdata['maxlength']) : 50;
		$fnamelength = isset($requestdata['fnamelength']) ? intval($requestdata['fnamelength']) : 0;
		$recommend = !empty($requestdata['recommend']) ? 1 : 0;
		$tids = isset($requestdata['tids']) ? $requestdata['tids'] : NULL;
		$keyword = !empty($requestdata['keyword']) ? $requestdata['keyword'] : NULL;
		$typeids = isset($requestdata['typeids']) ? $requestdata['typeids'] : NULL;
		$sortids = isset($requestdata['sortids']) ? $requestdata['sortids'] : NULL;
		$special = isset($requestdata['special']) ? intval($requestdata['special']) : 0;
		$rewardstatus = isset($requestdata['rewardstatus']) ? intval($requestdata['rewardstatus']) : 0;
		$threadtype = isset($requestdata['threadtype']) ? intval($requestdata['threadtype']) : 0;
		$threadsort = isset($requestdata['threadsort']) ? intval($requestdata['threadsort']) : 0;
		$tag = !empty($requestdata['tag']) ? trim($requestdata['tag']) : NULL;
		$messagelength = !empty($requestdata['messagelength']) ? intval($requestdata['messagelength']) : 255;

		require DISCUZ_ROOT.'./forumdata/cache/cache_forums.php';

		$datalist = array();
		$threadtypeids = array();
		if($keyword) {
			if(preg_match("(AND|\+|&|\s)", $keyword) && !preg_match("(OR|\|)", $keyword)) {
				$andor = ' AND ';
				$keywordsrch = '1';
				$keyword = preg_replace("/( AND |&| )/is", "+", $keyword);
			} else {
				$andor = ' OR ';
				$keywordsrch = '0';
				$keyword = preg_replace("/( OR |\|)/is", "+", $keyword);
			}
			$keyword = str_replace('*', '%', addcslashes($keyword, '%_'));
			foreach(explode('+', $keyword) as $text) {
				$text = trim($text);
				if($text) {
					$keywordsrch .= $andor;
					$keywordsrch .= "t.subject LIKE '%$text%'";
				}
			}
			$keyword = " AND ($keywordsrch)";
		} else {
			$keyword = '';
		}
		$sql = ($specialfid && $sidestatus ? ' AND t.fid = '.$specialfid : ($fids ? ' AND t.fid IN (\''.str_replace('_', '\',\'', $fids).'\')' : ''))
			.$keyword
			.($tids ? ' AND t.tid IN (\''.str_replace('_', '\',\'', $tids).'\')' : '')
			.($typeids ? ' AND t.typeid IN (\''.str_replace('_', '\',\'', $typeids).'\')' : '')
			.($sortids ? ' AND t.sortid IN (\''.str_replace('_', '\',\'', $sortids).'\')' : '')
			.(($special >= 0 && $special < 127) ? threadrange($special, 'special', 7) : '')
			.((($special & 16) && $rewardstatus) ? ($rewardstatus == 1 ? ' AND t.price < 0' : ' AND t.price > 0') : '')
			.(($digest > 0 && $digest < 15) ? threadrange($digest, 'digest') : '')
			.(($stick > 0 && $stick < 15) ? threadrange($stick, 'displayorder') : '');
		if(in_array($orderby, array('hourviews','todayviews','weekviews','monthviews'))) {
			$historytime = 0;
			switch($orderby) {
				case 'hourviews':
					$historytime = $timestamp - 3600 * $hours;
				break;
				case 'todayviews':
					$historytime = mktime(0, 0, 0, date('m', $timestamp), date('d', $timestamp), date('Y', $timestamp));
				break;
				case 'weekviews':
					$week = gmdate('w', $timestamp) - 1;
					$week = $week != -1 ? $week : 6;
					$historytime = mktime(0, 0, 0, date('m', $timestamp), date('d', $timestamp) - $week, date('Y', $timestamp));
				break;
				case 'monthviews':
					$historytime = mktime(0, 0, 0, date('m', $timestamp), 1, date('Y', $timestamp));
				break;
			}
			$sql .= ' AND t.dateline>='.$historytime;
			$orderby = 'views';
		}
		$sqlfrom = strexists($requesttemplate, '{message}') ? ",p.message FROM `{$tablepre}threads` t LEFT JOIN `{$tablepre}posts` p ON p.tid=t.tid AND p.first='1'" : "FROM `{$tablepre}threads` t";
		if(strexists($requesttemplate, '{imgattach}')) {
			$sqlfrom = ",a.remote,a.attachment,a.thumb $sqlfrom INNER JOIN `{$tablepre}attachments` a ON a.tid=t.tid";
			$sql .= " AND a.isimage='1' AND a.readperm='0' AND a.price='0'";
			$attachurl = $_DCACHE['settings']['attachurl'];
			$attachurl = preg_match("/^((https?|ftps?):\/\/|www\.)/i", $attachurl) ? $attachurl : $boardurl.$attachurl;
		}
		if($recommend) {
			$sqlfrom .= " INNER JOIN `{$tablepre}forumrecommend` fc ON fc.tid=t.tid";
		}

		if($tag) {
			$tags = explode(' ', $tag);
			foreach($tags as $tagk => $tagv) {
				if(!preg_match('/^([\x7f-\xff_-]|\w){3,20}$/', $tagv)) {
					unset($tags[$tagk]);
				}
			}
			if($tags = implode("','", $tags)) {
				$sqlfrom .= " INNER JOIN `{$tablepre}threadtags` tag ON tag.tid=t.tid AND tag.tagname IN ('$tags')";
			}
		}
		$query = $db->query("SELECT t.tid,t.fid,t.readperm,t.author,t.authorid,t.subject,t.dateline,t.lastpost,t.lastposter,t.views,t.replies,t.highlight,t.digest,t.typeid,t.sortid
			$sqlfrom WHERE t.readperm='0'
			$sql
			AND t.displayorder>='0'
			AND t.fid>'0'
			$attachadd
			ORDER BY t.$orderby DESC