cache.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: cache.func.php 17303 2008-12-12 05:38:18Z monkey $
*/

define('DISCUZ_KERNEL_VERSION', '7.0.0');
define('DISCUZ_KERNEL_RELEASE', '20081212');


function updatecache($cachename = '') {
	global $db, $bbname, $tablepre, $maxbdays;


	static $cachescript = array
		(

		'settings'	=> array('settings'),
		'forums'	=> array('forums'),
		'icons'		=> array('icons'),
		'ranks'		=> array('ranks'),
		'usergroups'	=> array('usergroups'),
		'request'	=> array('request'),
		'medals'	=> array('medals'),
		'magics'	=> array('magics'),
		'topicadmin'	=> array('modreasons'),
		'archiver'      => array('advs_archiver'),
		'register'      => array('advs_register'),
		'faqs'		=> array('faqs'),
		'secqaa'	=> array('secqaa'),
		'censor'	=> array('censor'),
		'ipbanned'	=> array('ipbanned'),
		'smilies'	=> array('smilies_js'),

		'index'		=> array('announcements', 'onlinelist', 'forumlinks', 'advs_index'),
		'forumdisplay'	=> array('smilies', 'announcements_forum', 'globalstick', 'floatthreads', 'forums', 'icons', 'onlinelist', 'advs_forumdisplay'),
		'viewthread'	=> array('smilies', 'smileytypes', 'smilies_display', 'forums', 'usergroups', 'ranks', 'bbcodes', 'smilies', 'advs_viewthread', 'tags_viewthread', 'custominfo', 'groupicon'),
		'post'		=> array('bbcodes_display', 'bbcodes', 'smilies_display', 'smilies', 'smileytypes', 'icons'),
		'profilefields'	=> array('fields_required', 'fields_optional'),
		'viewpro'	=> array('fields_required', 'fields_optional', 'custominfo'),
		'bbcodes'	=> array('bbcodes', 'smilies', 'smileytypes'),
		);

	if($maxbdays) {
		$cachescript['birthdays'] = array('birthdays');
		$cachescript['index'][]   = 'birthdays_index';
	}

	$updatelist = empty($cachename) ? array_values($cachescript) : (is_array($cachename) ? array('0' => $cachename) : array(array('0' => $cachename)));
	$updated = array();
	foreach($updatelist as $value) {
		foreach($value as $cname) {
			if(empty($updated) || !in_array($cname, $updated)) {
				$updated[] = $cname;
				getcachearray($cname);
			}
		}
	}

	foreach($cachescript as $script => $cachenames) {
		if(empty($cachename) || (!is_array($cachename) && in_array($cachename, $cachenames)) || (is_array($cachename) && array_intersect($cachename, $cachenames))) {
			$cachedata = '';
			$query = $db->query("SELECT data FROM {$tablepre}caches WHERE cachename in(".implodeids($cachenames).")");
			while($data = $db->fetch_array($query)) {
				$cachedata .= $data['data'];
			}
			writetocache($script, $cachenames, $cachedata);
		}
	}

	if(!$cachename || $cachename == 'styles') {
		$stylevars = $styledata = $styleicons = array();
		$defaultstyleid = $db->result_first("SELECT value FROM {$tablepre}settings WHERE variable = 'styleid'");
		$query = $db->query("SELECT sv.* FROM {$tablepre}stylevars sv LEFT JOIN {$tablepre}styles s ON s.styleid = sv.styleid AND (s.available=1 OR s.styleid='$defaultstyleid')");
		while($var = $db->fetch_array($query)) {
			$stylevars[$var['styleid']][$var['variable']] = $var['substitute'];
		}
		$query = $db->query("SELECT s.*, t.directory AS tpldir FROM {$tablepre}styles s LEFT JOIN {$tablepre}templates t ON s.templateid=t.templateid WHERE s.available=1 OR s.styleid='$defaultstyleid'");
		while($data = $db->fetch_array($query)) {
			$data = array_merge($data, $stylevars[$data['styleid']]);
			$datanew = array();
			$data['imgdir'] = $data['imgdir'] ? $data['imgdir'] : 'images/default';
			$data['styleimgdir'] = $data['styleimgdir'] ? $data['styleimgdir'] : $data['imgdir'];
			foreach($data as $k => $v) {
				if(substr($k, -7, 7) == 'bgcolor') {
					$newkey = substr($k, 0, -7).'bgcode';
					$datanew[$newkey] = setcssbackground($data, $k);
				}
			}
			$data = array_merge($data, $datanew);
			$styleicons[$data['styleid']] = $data['menuhover'];
			if(strstr($data['boardimg'], ',')) {
				$flash = explode(",", $data['boardimg']);
				$flash[0] = trim($flash[0]);
				$flash[0] = preg_match('/^http:\/\//i', $flash[0]) ? $flash[0] : $data['styleimgdir'].'/'.$flash[0];
				$data['boardlogo'] = "<embed src=\"".$flash[0]."\" width=\"".trim($flash[1])."\" height=\"".trim($flash[2])."\" type=\"application/x-shockwave-flash\" wmode=\"transparent\"></embed>";
			} else {
				$data['boardimg'] = preg_match('/^http:\/\//i', $data['boardimg']) ? $data['boardimg'] : $data['styleimgdir'].'/'.$data['boardimg'];
				$data['boardlogo'] = "<img src=\"$data[boardimg]\" alt=\"$bbname\" border=\"0\" />";
			}
			$data['bold'] = $data['nobold'] ? 'normal' : 'bold';
			$data['imagemaxwidth'] = intval($data['contentwidth']) <= 100 ? 600 : intval($data['contentwidth']);
			$data['verhash'] = random(3);
			$styledata[] = $data;
		}
		foreach($styledata as $data) {
			$data['styleicons'] = $styleicons;
			writetocache($data['styleid'], '', getcachevars($data, 'CONST'), 'style_');
			writetocsscache($data);
		}
	}

	if(!$cachename || $cachename == 'usergroups') {
		$query = $db->query("SELECT * FROM {$tablepre}usergroups u
					LEFT JOIN {$tablepre}admingroups a ON u.groupid=a.admingid");
		while($data = $db->fetch_array($query)) {
			$ratearray = array();
			if($data['raterange']) {
				foreach(explode("\n", $data['raterange']) as $rating) {
					$rating = explode("\t", $rating);
					$ratearray[$rating[0]] = array('min' => $rating[1], 'max' => $rating[2], 'mrpd' => $rating[3]);
				}
			}
			$data['raterange'] = $ratearray;
			$data['grouptitle'] = $data['color'] ? '<font color="'.$data['color'].'">'.$data['grouptitle'].'</font>' : $data['grouptitle'];
			$data['grouptype'] = $data['type'];
			$data['grouppublic'] = $data['system'] != 'private';
			$data['groupcreditshigher'] = $data['creditshigher'];
			$data['groupcreditslower'] = $data['creditslower'];
			unset($data['type'], $data['system'], $data['creditshigher'], $data['creditslower'], $data['color'], $data['groupavatar'], $data['admingid']);
			writetocache($data['groupid'], '', getcachevars($data), 'usergroup_');
		}
	}


	if(!$cachename || $cachename == 'admingroups') {
		$query = $db->query("SELECT * FROM {$tablepre}admingroups");
		while($data = $db->fetch_array($query)) {
			writetocache($data['admingid'], '', getcachevars($data), 'admingroup_');
		}
	}

	if(!$cachename || $cachename == 'plugins') {
		$query = $db->query("SELECT pluginid, available, adminid, name, identifier, datatables, directory, copyright, modules FROM {$tablepre}plugins");
		while($plugin = $db->fetch_array($query)) {
			$data = array_merge($plugin, array('modules' => array()), array('vars' => array()));
			$plugin['modules'] = unserialize($plugin['modules']);
			if(is_array($plugin['modules'])) {
				foreach($plugin['modules'] as $module) {
					$data['modules'][$module['name']] = $module;
				}
			}
			$queryvars = $db->query("SELECT variable, value FROM {$tablepre}pluginvars WHERE pluginid='$plugin[pluginid]'");
			while($var = $db->fetch_array($queryvars)) {
				$data['vars'][$var['variable']] = $var['value'];
			}
			writetocache($plugin['identifier'], '', "\$_DPLUGIN['$plugin[identifier]'] = ".arrayeval($data), 'plugin_');
		}
	}

	if(!$cachename || $cachename == 'threadsorts') {
		$sortlist = $templatedata = array();
		$query = $db->query("SELECT t.typeid AS sortid, tt.optionid, tt.title, tt.type, tt.rules, tt.identifier, tt.description, tv.required, tv.unchangeable, tv.search
			FROM {$tablepre}threadtypes t
			LEFT JOIN {$tablepre}typevars tv ON t.typeid=tv.sortid
			LEFT JOIN {$tablepre}typeoptions tt ON tv.optionid=tt.optionid
			WHERE t.special='1' AND tv.available='1'
			ORDER BY tv.displayorder");
		while($data = $db->fetch_array($query)) {
			$data['rules'] = unserialize($data['rules']);
			$sortid = $data['sortid'];
			$optionid = $data['optionid'];
			$sortlist[$sortid][$optionid] = array(
				'title' => dhtmlspecialchars($data['title']),
				'type' => dhtmlspecialchars($data['type']),
				'identifier' => dhtmlspecialchars($data['identifier']),
				'description' => dhtmlspecialchars($data['description']),
				'required' => intval($data['required']),
				'unchangeable' => intval($data['unchangeable']),
				'search' => intval($data['search'])
				);

			if(in_array($data['type'], array('select', 'checkbox', 'radio'))) {
				if($data['rules']['choices']) {
					$choices = array();
					foreach(explode("\n", $data['rules']['choices']) as $item) {
						list($index, $choice) = explode('=', $item);
						$choices[trim($index)] = trim($choice);
					}
					$sortlist[$sortid][$optionid]['choices'] = $choices;
				} else {
					$typelist[$sortid][$optionid]['choices'] = array();
				}
			} elseif(in_array($data['type'], array('text', 'textarea'))) {
				$sortlist[$sortid][$optionid]['maxlength'] = intval($data['rules']['maxlength']);
			} elseif($data['type'] == 'image') {
				$sortlist[$sortid][$optionid]['maxwidth'] = intval($data['rules']['maxwidth']);
				$sortlist[$sortid][$optionid]['maxheight'] = intval($data['rules']['maxheight']);
			} elseif($data['type'] == 'number') {
				$sortlist[$sortid][$optionid]['maxnum'] = intval($data['rules']['maxnum']);
				$sortlist[$sortid][$optionid]['minnum'] = intval($data['rules']['minnum']);
			}
		}
		$query = $db->query("SELECT typeid, description, template FROM {$tablepre}threadtypes WHERE special='1'");
		while($data = $db->fetch_array($query)) {
			$templatedata[$data['typeid']] = $data['template'];
			$threaddesc[$data['typeid']] = dhtmlspecialchars($data['description']);
		}

		foreach($sortlist as $sortid => $option) {
			writetocache($sortid, '', "\$_DTYPE = ".arrayeval($option).";\n\n\$_DTYPETEMPLATE = \"".str_replace('"', '\"', $templatedata[$sortid])."\";\n", 'threadsort_');
		}
	}

}

function setcssbackground(&$data, $code) {
	$codes = explode(' ', $data[$code]);
	$css = $codevalue = '';
	for($i = 0; $i < count($codes); $i++) {
		if($i < 2) {
			if($codes[$i] != '') {
				if($codes[$i]{0} == '#') {
					$css .= strtoupper($codes[$i]).' ';
					$codevalue = strtoupper($codes[$i]);
				} elseif(preg_match('/^http:\/\//i', $codes[$i])) {
					$css .= 'url(\"'.$codes[$i].'\") ';
				} else {
					$css .= 'url("'.$data['styleimgdir'].'/'.$codes[$i].'") ';
				}
			}
		} else {
			$css .= $codes[$i].' ';
		}
	}
	$data[$code] = $codevalue;
	$css = trim($css);
	return $css ? 'background: '.$css : '';
}

function updatesettings() {
	global $_DCACHE;
	if(isset($_DCACHE['settings']) && is_array($_DCACHE['settings'])) {
		writetocache('settings', '', '$_DCACHE[\'settings\'] = '.arrayeval($_DCACHE['settings']).";\n\n");
	}
}

function writetocache($script, $cachenames, $cachedata = '', $prefix = 'cache_') {
	global $authkey;
	if(is_array($cachenames) && !$cachedata) {
		foreach($cachenames as $name) {
			$cachedata .= getcachearray($name, $script);
		}
	}

	$dir = DISCUZ_ROOT.'./forumdata/cache/';
	if(!is_dir($dir)) {
		@mkdir($dir, 0777);
	}
	if($fp = @fopen("$dir$prefix$script.php", 'wb')) {
		fwrite($fp, "<?php\n//Discuz! cache file, DO NOT modify me!".
			"\n//Created: ".date("M j, Y, G:i").
			"\n//Identify: ".md5($prefix.$script.'.php'.$cachedata.$authkey)."\n\n$cachedata?>");
		fclose($fp);
	} else {
		exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');
	}
}

function writetocsscache($data) {
	$cssdata = '';
	foreach(array('_common' => array('css_common', 'css_append', 'css_editor', 'css_editor_append'),
			'_editor' => array('css_editor', 'css_editor_append'),
			'_seditor' => array('css_seditor', 'css_seditor_append'),
			'_viewthread' => array('css_viewthread', 'css_viewthread_append'),
			'_calendar' => array('css_calendar', 'css_calendar_append'),
			'_float' => array('css_float', 'css_float_append')
		) as $extra => $cssfiles) {
		$cssdata = '';
		foreach($cssfiles as $css) {
			$cssfile = DISCUZ_ROOT.'./'.$data['tpldir'].'/'.$css.'.htm';
			!file_exists($cssfile) && $cssfile = DISCUZ_ROOT.'./templates/default/'.$css.'.htm';
			if(file_exists($cssfile)) {
				$fp = fopen($cssfile, 'r');
				$cssdata .= @fread($fp, filesize($cssfile))."\n\n";
				fclose($fp);
			}
		}
		$cssdata = preg_replace("/\{([A-Z0-9]+)\}/e", '\$data[strtolower(\'\1\')]', $cssdata);
		$cssdata = preg_replace("/<\?.+?\?>\s*/", '', $cssdata);