phpcms 模版源碼分析

2024-09-10 07:14:45

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/**

* 模板調用

*

* @param $module

* @param $template

* @param $istag

* @return unknown_type

*/

function template($module = 'content', $template = 'index', $style = '') {

if(strpos($module, 'plugin/')!== false) {

$plugin = str_replace('plugin/', '', $module);

return p_template($plugin, $template,$style);

}

$module = str_replace('/', DIRECTORY_SEPARATOR, $module);

if(!emptyempty($style) && preg_match('/([a-z0-9/-_]+)/is',$style)) {

} elseif (emptyempty($style) && !defined('STYLE')) {

if(defined('SITEID')) {

$siteid = SITEID;

} else {

$siteid = param::get_cookie('siteid');

}

if (!$siteid) $siteid = 1;

$sitelist = getcache('sitelist','commons');

if(!emptyempty($siteid)) {

$style = $sitelist[$siteid]['default_style'];

}

} elseif (emptyempty($style) && defined('STYLE')) {

$style = STYLE;

} else {

$style = 'default';

}

if(!$style) $style = 'default';

$template_cache = pc_base::load_sys_class('template_cache');

$compiledtplfile = PHPCMS_PATH.'caches'.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.php';

if(file_exists(PC_PATH.'templates'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html')) {

if(!file_exists($compiledtplfile) || (@filemtime(PC_PATH.'templates'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html') > @filemtime($compiledtplfile))) {

$template_cache->template_compile($module, $template, $style);

}

} else {

$compiledtplfile = PHPCMS_PATH.'caches'.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.php';

if(!file_exists($compiledtplfile) || (file_exists(PC_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html') && filemtime(PC_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html') > filemtime($compiledtplfile))) {

$template_cache->template_compile($module, $template, 'default');

} elseif (!file_exists(PC_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html')) {

showmessage('Template does not exist.'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html');

}

}

return $compiledtplfile;

}

/**

* 模板解析緩存

*/

final class template_cache {

/**

* 編譯模板

*

* @param $module    模塊名稱

* @param $template  模板文件名

* @param $istag 是否為標簽模板

* @return unknown

*/

public function template_compile($module, $template, $style = 'default') {

if(strpos($module, '/')=== false) {

$tplfile = $_tpl = PC_PATH.'templates'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html';

} elseif (strpos($module, 'yp/') !== false) {

$module = str_replace('/', DIRECTORY_SEPARATOR, $module);

$tplfile = $_tpl = PC_PATH.'templates'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html';

} else {

$plugin = str_replace('plugin/', '', $module);

$module = str_replace('/', DIRECTORY_SEPARATOR, $module);

$tplfile = $_tpl = PC_PATH.'plugin'.DIRECTORY_SEPARATOR.$plugin.DIRECTORY_SEPARATOR.'templates'.DIRECTORY_SEPARATOR.$template.'.html';

}

if ($style != 'default' && !file_exists ( $tplfile )) {

$style = 'default';

$tplfile = PC_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html';

}

if (! file_exists ( $tplfile )) {

showmessage ( "templates".DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.".html is not exists!" );

}

$content = @file_get_contents ( $tplfile );

$filepath = CACHE_PATH.'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR;

if(!is_dir($filepath)) {

mkdir($filepath, 0777, true);

}

$compiledtplfile = $filepath.$template.'.php';

$content = $this->template_parse($content);

$strlen = file_put_contents ( $compiledtplfile, $content );

chmod ( $compiledtplfile, 0777 );

return $strlen;

}

/**

* 更新模板緩存

*

* @param $tplfile   模板原文件路徑

* @param $compiledtplfile   編譯完成后，寫入文件名

* @return $strlen 長度

*/

public function template_refresh($tplfile, $compiledtplfile) {

$str = @file_get_contents ($tplfile);

$str = $this->template_parse ($str);

$strlen = file_put_contents ($compiledtplfile, $str );

chmod ($compiledtplfile, 0777);

return $strlen;

}

/**

* 解析模板

*

* @param $str   模板內容

* @return ture

*/

public function template_parse($str) {

$str = preg_replace ( "//{template/s+(.+)/}/", "<?php include template(//1); ?>", $str );

$str = preg_replace ( "//{include/s+(.+)/}/", "<?php include //1; ?>", $str );

$str = preg_replace ( "//{php/s+(.+)/}/", "<?php //1?>", $str );

$str = preg_replace ( "//{if/s+(.+?)/}/", "<?php if(//1) { ?>", $str );

$str = preg_replace ( "//{else/}/", "<?php } else { ?>", $str );

$str = preg_replace ( "//{elseif/s+(.+?)/}/", "<?php } elseif (//1) { ?>", $str );

$str = preg_replace ( "//{//if/}/", "<?php } ?>", $str );

//for 循環

$str = preg_replace("//{for/s+(.+?)/}/","<?php for(//1) { ?>",$str);

$str = preg_replace("//{//for/}/","<?php } ?>",$str);

//++ --

$str = preg_replace("//{/+/+(.+?)/}/","<?php ++//1; ?>",$str);

$str = preg_replace("//{/-/-(.+?)/}/","<?php ++//1; ?>",$str);

$str = preg_replace("//{(.+?)/+/+/}/","<?php //1++; ?>",$str);

$str = preg_replace("//{(.+?)/-/-/}/","<?php //1--; ?>",$str);

$str = preg_replace ( "//{loop/s+(/S+)/s+(/S+)/}/", "<?php /$n=1;if(is_array(//1)) foreach(//1 AS //2) { ?>", $str );

$str = preg_replace ( "//{loop/s+(/S+)/s+(/S+)/s+(/S+)/}/", "<?php /$n=1; if(is_array(//1)) foreach(//1 AS //2 => //3) { ?>", $str );

$str = preg_replace ( "//{//loop/}/", "<?php /$n++;}unset(/$n); ?>", $str );

$str = preg_replace ( "//{([a-zA-Z_/x7f-/xff][a-zA-Z0-9_/x7f-/xff:]*/(([^{}]*)/))/}/", "<?php echo //1;?>", $str );

$str = preg_replace ( "//{//$([a-zA-Z_/x7f-/xff][a-zA-Z0-9_/x7f-/xff:]*/(([^{}]*)/))/}/", "<?php echo //1;?>", $str );

$str = preg_replace ( "//{(//$[a-zA-Z_/x7f-/xff][a-zA-Z0-9_/x7f-/xff]*)/}/", "<?php echo //1;?>", $str );

$str = preg_replace("//{(//$[a-zA-Z0-9_/[/]/'/"/$/x7f-/xff]+)/}/es", "/$this->addquote('<?php echo //1;?>')",$str);

$str = preg_replace ( "//{([A-Z_/x7f-/xff][A-Z0-9_/x7f-/xff]*)/}/s", "<?php echo //1;?>", $str );

$str = preg_replace("//{pc:(/w+)/s+([^}]+)/}/ie", "self::pc_tag('$1','$2', '$0')", $str);

$str = preg_replace("//{//pc/}/ie", "self::end_pc_tag()", $str);

$str = "<?php defined('IN_PHPCMS') or exit('No permission resources.'); ?>" . $str;

return $str;

}

/**

* 轉義 // 為 /

*

* @param $var   轉義的字符

* @return 轉義后的字符

*/

public function addquote($var) {

return str_replace ( "///"", "/"", preg_replace ( "//[([a-zA-Z0-9_/-/./x7f-/xff]+)/]/s", "['//1']", $var ) );

}

/**

* 解析PC標簽

* @param string $op 操作方式

* @param string $data 參數

* @param string $html 匹配到的所有的HTML代碼

*/

public static function pc_tag($op, $data, $html) {

preg_match_all("/([a-z]+)/=[/"]?([^/"]+)[/"]?/i", stripslashes($data), $matches, PREG_SET_ORDER);

$arr = array('action','num','cache','page', 'pagesize', 'urlrule', 'return', 'start');

$tools = array('json', 'xml', 'block', 'get');

$datas = array();

$tag_id = md5(stripslashes($html));

//可視化條件

$str_datas = 'op='.$op.'&tag_md5='.$tag_id;

foreach ($matches as $v) {

$str_datas .= $str_datas ? "&$v[1]=".($op == 'block' && strpos($v[2], '$') === 0 ? $v[2] : urlencode($v[2])) : "$v[1]=".(strpos($v[2], '$') === 0 ? $v[2] : urlencode($v[2]));

if(in_array($v[1], $arr)) {

$$v[1] = $v[2];

continue;

}

$datas[$v[1]] = $v[2];

}

$str = '';

$num = isset($num) && intval($num) ? intval($num) : 20;

$cache = isset($cache) && intval($cache) ? intval($cache) : 0;

$return = isset($return) && trim($return) ? trim($return) : 'data';

if (!isset($urlrule)) $urlrule = '';

if (!emptyempty($cache) && !isset($page)) {

$str .= '$tag_cache_name = md5(implode(/'&/','.self::arr_to_html($datas).')./''.$tag_id.'/');if(!$'.$return.' = tpl_cache($tag_cache_name,'.$cache.')){';

}

if (in_array($op,$tools)) {

switch ($op) {

case 'json':

if (isset($datas['url']) && !emptyempty($datas['url'])) {

$str .= '$json = @file_get_contents(/''.$datas['url'].'/');';

$str .= '$'.$return.' = json_decode($json, true);';

}

break;

case 'xml':

$str .= '$xml = pc_base::load_sys_class(/'xml/');';

$str .= '$xml_data = @file_get_contents(/''.$datas['url'].'/');';

$str .= '$'.$return.' = $xml->xml_unserialize($xml_data);';

break;

case 'get':

$str .= 'pc_base::load_sys_class("get_model", "model", 0);';

if ($datas['dbsource']) {

$dbsource = getcache('dbsource', 'commons');

if (isset($dbsource[$datas['dbsource']])) {

$str .= '$get_db = new get_model('.var_export($dbsource,true).', /''.$datas['dbsource'].'/');';

} else {

return false;

}

} else {

$str .= '$get_db = new get_model();';

}

$num = isset($num) && intval($num) > 0 ? intval($num) : 20;

if (isset($start) && intval($start)) {

$limit = intval($start).','.$num;

} else {

$limit = $num;

}

if (isset($page)) {

$str .= '$pagesize = '.$num.';';

$str .= '$page = intval('.$page.') ? intval('.$page.') : 1;if($page<=0){$page=1;}';

$str .= '$offset = ($page - 1) * $pagesize;';

$limit = '$offset,$pagesize';

if ($sql = preg_replace('/select([^from].*)from/i', "SELECT COUNT(*) as count FROM ", $datas['sql'])) {

$str .= '$r = $get_db->sql_query("'.$sql.'");$s = $get_db->fetch_next();$pages=pages($s[/'count/'], $page, $pagesize, $urlrule);';

}

}

$str .= '$r = $get_db->sql_query("'.$datas['sql'].' LIMIT '.$limit.'");while(($s = $get_db->fetch_next()) != false) {$a[] = $s;}$'.$return.' = $a;unset($a);';

break;

case 'block':

$str .= '$block_tag = pc_base::load_app_class(/'block_tag/', /'block/');';

$str .= 'echo $block_tag->pc_tag('.self::arr_to_html($datas).');';

break;

}

} else {

if (!isset($action) || emptyempty($action)) return false;

if (module_exists($op) && file_exists(PC_PATH.DIRECTORY_SEPARATOR.'modules'.DIRECTORY_SEPARATOR.$op.DIRECTORY_SEPARATOR.'classes'.DIRECTORY_SEPARATOR.$op.'_tag.class.php')) {

$str .= '$'.$op.'_tag = pc_base::load_app_class("'.$op.'_tag", "'.$op.'");if (method_exists($'.$op.'_tag, /''.$action.'/')) {';

if (isset($start) && intval($start)) {

$datas['limit'] = intval($start).','.$num;

} else {

$datas['limit'] = $num;

}

if (isset($page)) {

$str .= '$pagesize = '.$num.';';

$str .= '$page = intval('.$page.') ? intval('.$page.') : 1;if($page<=0){$page=1;}';

$str .= '$offset = ($page - 1) * $pagesize;';

$datas['limit'] = '$offset.",".$pagesize';

$datas['action'] = $action;

$str .= '$'.$op.'_total = $'.$op.'_tag->count('.self::arr_to_html($datas).');';

$str .= '$pages = pages($'.$op.'_total, $page, $pagesize, $urlrule);';

}

$str .= '$'.$return.' = $'.$op.'_tag->'.$action.'('.self::arr_to_html($datas).');';

$str .= '}';

}

}

if (!emptyempty($cache) && !isset($page)) {

$str .= 'if(!empty($'.$return.')){setcache($tag_cache_name, $'.$return.', /'tpl_data/');}';

$str .= '}';

}

return "<"."?php if(defined('IN_ADMIN') && !defined('HTML')) {echo /"<div class=///"admin_piao///" pc_action=///"".$op."///" data=///"".$str_datas."///"><a href=///"javascript：void(0)///" class=///"admin_piao_edit///">".($op=='block' ? L('block_add') : L('edit'))."</a>/";}".$str."?".">";

}

/**

* PC標簽結束

*/

static private function end_pc_tag() {

return '<?php if(defined(/'IN_ADMIN/') && !defined(/'HTML/')) {echo /'</div>/';}?>';

}

/**

* 轉換數據為HTML代碼

* @param array $data 數組

*/

private static function arr_to_html($data) {

if (is_array($data)) {

$str = 'array(';

foreach ($data as $key=>$val) {

if (is_array($val)) {

$str .= "'$key'=>".self::arr_to_html($val).",";

} else {

if (strpos($val, '$')===0) {

$str .= "'$key'=>$val,";

} else {

$str .= "'$key'=>'".new_addslashes($val)."',";

}

}

}

return $str.')';

}

return false;

}

}

?>