<?php

class kMainTagProcessor extends TagProcessor {

	function Init($prefix, $special, $event_params = null)
	{
		parent::Init($prefix, $special, $event_params);

		$actions =& $this->Application->recallObject('kActions');
		$actions->Set('t', $this->Application->GetVar('t'));
		$actions->Set('sid', $this->Application->GetSID());
		$actions->Set('m_opener', $this->Application->GetVar('m_opener') );
	}

	/**
	 * Used to handle calls where tag name
	 * match with existing php function name
	 *
	 * @param Tag $tag
	 * @return string
	 */
	function ProcessTag(&$tag)
	{
		if ($tag->Tag=='include') $tag->Tag='MyInclude';
		return parent::ProcessTag($tag);
	}

	/**
	 * Creates <base href ..> HTML tag for all templates
	 * affects future css, js files and href params of links
	 *
	 * @return string
	 * @access public
	 */
	function Base_Ref()
	{
		$url = $this->Application->BaseURL().substr(THEMES_PATH, 1).'/';
		return '<base href="'.$url.'" />';
	}

	/**
	 * Returns base url for web-site
	 *
	 * @return string
	 * @access public
	 */
	function BaseURL()
	{
		return $this->Application->BaseURL();
	}

	function TemplatesBase($params)
	{
		return $this->Application->BaseURL().THEMES_PATH;
	}

	function ProjectBase($params)
	{
		return $this->Application->BaseURL();
	}

	/*function Base($params)
	{
		return $this->Application->BaseURL().$params['add'];
	}*/

	/**
	 * Used to create link to any template.
	 * use "pass" paramter if "t" tag to specify
	 * prefix & special of object to be represented
	 * in resulting url
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function T($params)
	{
		//by default link to current template
		$t = $this->SelectParam($params, 't,template');
		unset($params['t']);
		unset($params['template']);
		$prefix=isset($params['prefix']) ? $params['prefix'] : ''; unset($params['prefix']);
		$index_file = isset($params['index_file']) ? $params['index_file'] : null; unset($params['index_file']);

		return $this->Application->HREF($t, $prefix, $params, $index_file);
	}

	function Link($params)
	{
		if (isset($params['template'])) {
			$params['t'] = $params['template'];
			unset($params['template']);
		}
		if (!isset($params['pass']) && !isset($params['no_pass'])) $params['pass'] = 'm';
		if (isset($params['no_pass'])) unset($params['no_pass']);

		if( $this->Application->GetVar('admin') ) $params['admin'] = 1;

		return $this->T($params);
	}

	function Env($params)
	{
		$t = $params['template'];
		unset($params['template']);
		return $this->Application->BuildEnv($t, $params, 'm', null, false);
	}

	function FormAction($params)
	{
		return $this->Application->ProcessParsedTag('m', 't', 	Array( 'pass'=>'all,m' ) );
	}

	/*// NEEDS TEST
	function Config($params)
	{
		return $this->Application->ConfigOption($params['var']);
	}

	function Object($params)
	{
		$name = $params['name'];
		$method = $params['method'];

		$tmp =& $this->Application->recallObject($name);
		if ($tmp != null) {
			if (method_exists($tmp, $method))
				return $tmp->$method($params);
			else
				echo "Method $method does not exist in object ".get_class($tmp)." named $name<br>";
		}
		else
			echo "Object $name does not exist in the appliaction<br>";
	}*/

	/**
	 * Tag, that always returns true.
	 * For parser testing purposes
	 *
	 * @param Array $params
	 * @return bool
	 * @access public
	 */
	function True($params)
	{
		return true;
	}

	/**
	 * Tag, that always returns false.
	 * For parser testing purposes
	 *
	 * @param Array $params
	 * @return bool
	 * @access public
	 */
	function False($params)
	{
		return false;
	}

	/**
	 * Returns block parameter by name
	 *
	 * @param Array $params
	 * @return stirng
	 * @access public
	 */
	function Param($params)
	{
		//$parser =& $this->Application->recallObject('TemplateParser');
		$res = $this->Application->Parser->GetParam($params['name']);
		if ($res === false) $res = '';
		if (isset($params['plus']))
			$res += $params['plus'];
		return $res;
	}

	/**
	 * Gets value of specified field from specified prefix_special and set it as parser param
	 *
	 * @param Array $params
	 */
	/*function SetParam($params)
	{
		// <inp2:m_SetParam param="custom_name" src="cf:FieldName"/>
		list($prefix_special, $field_name) = explode(':', $params['src']);

		$object =& $this->Application->recallObject($prefix_special);
		$name = $this->SelectParam($params, 'param,name,var');

		$this->Application->Parser->SetParam($name, $object->GetField($field_name) );
	}*/

	/**
	 * Compares block parameter with value specified
	 *
	 * @param Array $params
	 * @return bool
	 * @access public
	 */
	function ParamEquals($params)
	{
		//$parser =& $this->Application->recallObject('TemplateParser');
		$name = $this->SelectParam($params, 'name,var,param');
		$value = $params['value'];
		return ($this->Application->Parser->GetParam($name) == $value);
	}

	/*function PHP_Self($params)
	{
		return $HTTP_SERVER_VARS['PHP_SELF'];
	}
	*/

	/**
	 * Returns session variable value by name
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function Recall($params)
	{
		$ret = $this->Application->RecallVar( $this->SelectParam($params,'name,var,param') );
		$ret = ($ret === false && isset($params['no_null'])) ? '' : $ret;
		if( getArrayValue($params,'special') || getArrayValue($params,'htmlchars')) $ret = htmlspecialchars($ret);

		if ( getArrayValue($params, 'urlencode') ) $ret = urlencode($ret);

		return $ret;
	}

	// bad style to store something from template to session !!! (by Alex)
	// Used here only to test how session works, nothing more
	function Store($params)
	{
		//echo"Store $params[name]<br>";
		$name = $params['name'];
		$value = $params['value'];
		$this->Application->StoreVar($name,$value);
	}

	/**
	 * Sets application variable value(-s)
	 *
	 * @param Array $params
	 * @access public
	 */
	function Set($params)
	{
		foreach ($params as $param => $value) {
			$this->Application->SetVar($param, $value);
		}
	}

	/**
	 * Increment application variable
	 * specified by number specified
	 *
	 * @param Array $params
	 * @access public
	 */
	function Inc($params)
	{
		$this->Application->SetVar($params['param'], $this->Application->GetVar($params['param']) + $params['by']);
	}

	/**
	 * Retrieves application variable
	 * value by name
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function Get($params)
	{
		$ret = $this->Application->GetVar($this->SelectParam($params, 'name,var,param'), '');
		return getArrayValue($params, 'htmlchars') ? htmlspecialchars($ret) : $ret;
	}

	/**
	 * Retrieves application constant
	 * value by name
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function GetConst($params)
	{
		return defined($this->SelectParam($params, 'name,const')) ? constant($this->SelectParam($params, 'name,const,param')) : '';
	}

	/**
	 * Retrieves configuration variable value by name
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function GetConfig($params)
	{
		$config_name = $this->SelectParam($params, 'name,var');
		$ret = $this->Application->ConfigValue($config_name);
		if( getArrayValue($params, 'escape') ) $ret = addslashes($ret);
		return $ret;
	}

	function ConfigEquals($params)
	{
		$option = $this->SelectParam($params, 'name,option,var');
		return $this->Application->ConfigValue($option) == getArrayValue($params, 'value');
	}

	/**
	 * Creates all hidden fields
	 * needed for kernel_form
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function DumpSystemInfo($params)
	{
		$actions =& $this->Application->recallObject('kActions');
		$actions->Set('t', $this->Application->GetVar('t') );

		$params = $actions->GetParams();
		$o='';
		foreach ($params AS $name => $val)
		{
			$o .= "<input type='hidden' name='$name' id='$name' value='$val'>\n";
		}
		return $o;
	}

	function GetFormHiddens($params)
	{
		$sid = $this->Application->GetSID();
		$t = $this->SelectParam($params, 'template,t');
		unset($params['template']);
		$env = $this->Application->BuildEnv($t, $params, 'm', null, false);
		$o = '';
		if ( $this->Application->RewriteURLs() )
		{
			$session =& $this->Application->recallObject('Session');
			if ($session->NeedQueryString()) {
				$o .= "<input type='hidden' name='sid' id='sid' value='$sid'>\n";
			}
		}
		else {
			$o .= "<input type='hidden' name='env' id='env' value='$env'>\n";
		}
		return $o;
	}

	function Odd_Even($params)
	{
		$odd = $params['odd'];
		$even = $params['even'];
		if (!isset($params['var'])) {
			$var = 'odd_even';
		}
		else {
			$var = $params['var'];
		}

		if ($this->Application->GetVar($var) == 'even') {
			if (!isset($params['readonly']) || !$params['readonly']) {
				$this->Application->SetVar($var, 'odd');
			}
			return $even;
		}
		else {
			if (!isset($params['readonly']) || !$params['readonly']) {
				$this->Application->SetVar($var, 'even');
			}
			return $odd;
		}
	}

	/**
	 * Returns phrase translation by name
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function Phrase($params)
	{
		// m:phrase name="phrase_name" default="Tr-alala" updated="2004-01-29 12:49"
		if (array_key_exists('default', $params)) return $params['default']; //backward compatibility
		$translation = $this->Application->Phrase($this->SelectParam($params, 'label,name,title'));
		if (getArrayValue($params, 'escape')) {
			$translation = htmlspecialchars($translation);
			$translation = str_replace('\'', '&#39;', $translation);
			$translation = addslashes($translation);
		}
		return $translation;
	}

	// for tabs
	function is_active($params)
	{
		$test_templ =  $this->SelectParam($params, 'templ,template,t');
		if ( !getArrayValue($params,'allow_empty') )
		{
			$if_true=getArrayValue($params,'true') ? $params['true'] : 1;
			$if_false=getArrayValue($params,'false') ? $params['false'] : 0;
		}
		else
		{
			$if_true=$params['true'];
			$if_false=$params['false'];
		}

		if ( preg_match("/^".str_replace('/', '\/', $test_templ)."/", $this->Application->GetVar('t'))) {
			return $if_true;
		}
		else {
			return $if_false;
		}
	}

	function IsNotActive($params)
	{
		return !$this->is_active($params);
	}

	function IsActive($params)
	{
		return $this->is_active($params);
	}

	function is_t_active($params)
	{
		return $this->is_active($params);
	}

	function CurrentTemplate($params)
	{
		return $this->is_active($params);
	}

	/**
	 * Checks if session variable
	 * specified by name value match
	 * value passed as parameter
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function RecallEquals($params)
	{
		$name = $this->SelectParam($params, 'name,var');
		$value = $params['value'];
		return ($this->Application->RecallVar($name) == $value);
	}

	/**
	 * Checks if application variable
	 * specified by name value match
	 * value passed as parameter
	 *
	 * @param Array $params
	 * @return bool
	 * @access public
	 */
	function GetEquals($params)
	{
		$name = $this->SelectParam($params, 'var,name,param');
		$value = $params['value'];
		if ($this->Application->GetVar($name) == $value) {
			return 1;
		}
	}

	/**
	 * Includes template
	 * and returns it's
	 * parsed version
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function MyInclude($params)
	{
		$BlockParser =& $this->Application->makeClass('TemplateParser');
		$BlockParser->SetParams($params);
		$parser =& $this->Application->Parser;
		$this->Application->Parser =& $BlockParser;

		$t = $this->SelectParam($params, 't,template,block,name');
		$t = eregi_replace("\.tpl$", '', $t);

		$templates_cache =& $this->Application->recallObject('TemplatesCache');
		$res = $BlockParser->Parse(	$templates_cache->GetTemplateBody($t, getArrayValue($params, 'is_silent')), $t );


		if ( !$BlockParser->DataExists && (isset($params['data_exists']) || isset($params['block_no_data'])) ) {
			if ($block_no_data = getArrayValue($params, 'block_no_data')) {
				$res = $BlockParser->Parse(
					$templates_cache->GetTemplateBody($block_no_data, getArrayValue($params, 'is_silent') ),
					$t
				);
			}
			else {
				$res = '';
			}
		}
		$this->Application->Parser =& $parser;
		$this->Application->Parser->DataExists = $this->Application->Parser->DataExists || $BlockParser->DataExists;
		return $res;
	}
	function ModuleInclude($params)
	{
		$ret = '';
		$block_params = Array('is_silent' => 2); // don't make fatal errors in case if template is missing
		$current_template = $this->Application->GetVar('t');
		foreach ($this->Application->ModuleInfo as $module_name => $module_data) {
			$module_key = strtolower($module_name);

			if ($module_name == 'In-Portal') {
				$module_prefix = '';
			}
			else {
				$module_prefix = $this->Application->IsAdmin() ? $module_key.'/' : $module_data['TemplatePath'].'/';
			}

			$block_params['t'] = $module_prefix.$this->SelectParam($params, $module_key.'_template,'.$module_key.'_t,template,t');
			if ($block_params['t'] == $current_template) continue;

			$no_data = $this->SelectParam($params, $module_key.'_block_no_data,block_no_data');
			if ($no_data) {
				$block_params['block_no_data'] = $module_prefix.'/'.$no_data;
			}
			$ret .= $this->MyInclude($block_params);
		}
		return $ret;
	}
	/*function Kernel_Scripts($params)
	{
		return '<script type="text/javascript" src="'.PROTOCOL.SERVER_NAME.BASE_PATH.'/kernel3/js/grid.js"></script>';
	}*/


	/*function GetUserPermission($params)
	{
		// echo"GetUserPermission $params[name]";
		if ($this->Application->RecallVar('user_type') == 1)
			return 1;
		else {
			$perm_name = $params[name];
			$aPermissions = unserialize($this->Application->RecallVar('user_permissions'));
			if ($aPermissions)
				return $aPermissions[$perm_name];
		}
	}*/


	/**
	 * Set's parser block param value
	 *
	 * @param Array $params
	 * @access public
	 */
	function AddParam($params)
	{
		$parser =& $this->Application->Parser; // recallObject('TemplateParser');
		foreach ($params as $param => $value) {
			$this->Application->SetVar($param, $value);
			$parser->SetParam($param, $value);
			$parser->AddParam('/\$'.$param.'/', $value);
		}
	}

	/*function ParseToVar($params)
	{
		$var = $params['var'];
		$tagdata = $params['tag'];
		$parser =& $this->Application->Parser; //recallObject('TemplateParser');
		$res = $this->Application->ProcessTag($tagdata);

		$parser->SetParam($var, $res);
		$parser->AddParam('/\$'.$var.'/', $res);
		return '';
	}*/

	/*function TagNotEmpty($params)
	{
		$tagdata = $params['tag'];
		$res = $this->Application->ProcessTag($tagdata);
		return $res != '';
	}*/

	/*function TagEmpty($params)
	{
		return !$this->TagNotEmpty($params);
	}*/

	/**
	 * Parses block and returns result
	 *
	 * @param Array $params
	 * @return string
	 * @access public
	 */
	function ParseBlock($params)
	{
		$parser =& $this->Application->Parser; // recallObject('TemplateParser');
		return $parser->ParseBlock($params);
	}

	function RenderElement($params)
	{
		return $this->ParseBlock($params);
	}

	/**
	 * Checks if debug mode is on
	 *
	 * @return bool
	 * @access public
	 */
	function IsDebugMode()
	{
		return $this->Application->isDebugMode();
	}

	function MassParse($params)
	{
		$qty = $params['qty'];
		$block = $params['block'];
		$mode = $params['mode'];

		$o = '';
		if ($mode == 'func') {
			$func = create_function('$params', '
					$o = \'<tr>\';
					$o.= \'<td>a\'.$params[\'param1\'].\'</td>\';
					$o.= \'<td>a\'.$params[\'param2\'].\'</td>\';
					$o.= \'<td>a\'.$params[\'param3\'].\'</td>\';
					$o.= \'<td>a\'.$params[\'param4\'].\'</td>\';
					$o.= \'</tr>\';
					return $o;
				');
			for ($i=1; $i<$qty; $i++) {
				$block_params['param1'] = rand(1, 10000);
				$block_params['param2'] = rand(1, 10000);
				$block_params['param3'] = rand(1, 10000);
				$block_params['param4'] = rand(1, 10000);
				$o .= $func($block_params);
			}
			return $o;
		}

		$block_params['name'] = $block;

		for ($i=0; $i<$qty; $i++) {
			$block_params['param1'] = rand(1, 10000);
			$block_params['param2'] = rand(1, 10000);
			$block_params['param3'] = rand(1, 10000);
			$block_params['param4'] = rand(1, 10000);
			$block_params['passed'] = $params['passed'];
			$block_params['prefix'] = 'm';

			$o.= $this->Application->ParseBlock($block_params, 1);
		}
		return $o;
	}

	function LoggedIn($params)
	{
		return $this->Application->LoggedIn();
	}

	/**
	 * Allows to check if permission exists directly in template and perform additional actions if required
	 *
	 * @param Array $params
	 * @return bool
	 */
	function CheckPermission($params)
	{
		$perm_helper =& $this->Application->recallObject('PermissionsHelper');
		return $perm_helper->TagPermissionCheck($params, 'm_CheckPermission');
	}
	
	/**
	 * Checks if user is logged in and if not redirects it to template passed
	 *
	 * @param Array $params
	 */
	function RequireLogin($params)
	{
		$t = $this->Application->GetVar('t');
		if ($next_t = getArrayValue($params, 'next_template')) {
			$t = $next_t;
		}

		// check by permissions: begin
		$perm_helper =& $this->Application->recallObject('PermissionsHelper');
		$perm_status = $perm_helper->TagPermissionCheck($params, 'm_RequireLogin');
		if (!$perm_status) {
			list($redirect_template, $redirect_params) = $perm_helper->getPermissionTemplate($params);
			$this->Application->Redirect($redirect_template, $redirect_params);
		}
		// check by permissions: end
				
		// check by configuration value: begin
		$condition = getArrayValue($params, 'condition');
		if (!$condition) {
			$condition = true;
		}
		else {
			if (substr($condition, 0, 1) == '!') {
				$condition = !$this->Application->ConfigValue(substr($condition, 1));
			}
			else {
				$condition = $this->Application->ConfigValue($condition);
			}
		}
		// check by configuration value: end
		
		// check by belonging to group: begin
		$group = $this->SelectParam($params, 'group');
		$group_access = true;
		if ($group) {
			$conn =& $this->Application->GetADODBConnection();
			$group_id = $conn->GetOne('SELECT GroupId FROM '.TABLE_PREFIX.'PortalGroup WHERE Name = '.$conn->qstr($group));
			if ($group_id) {
				$groups = explode(',', $this->Application->RecallVar('UserGroups'));
				$group_access = in_array($group_id, $groups);
			}
		}
		// check by belonging to group: end
		
		if ((!$this->Application->LoggedIn() || !$group_access) && $condition) {
			if ( $this->Application->LoggedIn() && !$group_access) {
				$this->Application->Redirect( $params['no_group_perm_template'], Array('next_template'=>$t) );
			}

			$redirect_params = Array('next_template' => $t);
			$session_expired = $this->Application->GetVar('expired');
			if ($session_expired) {
				$redirect_params['expired'] = $session_expired;
			}
			$this->Application->Redirect($params['login_template'], $redirect_params);
		}
	}

	function IsMember($params)
	{
		$group = getArrayValue($params, 'group');
		$conn =& $this->Application->DB;
		$group_id = $conn->GetOne('SELECT GroupId FROM '.TABLE_PREFIX.'PortalGroup WHERE Name = '.$conn->qstr($group));
		if ($group_id) {
			$groups = explode(',', $this->Application->RecallVar('UserGroups'));
			$group_access = in_array($group_id, $groups);
		}
		return $group_access;
	}

	/**
	 * Checks if SSL is on and redirects to SSL URL if needed
	 * If SSL_URL is not defined in config - the tag does not do anything
	 * If for_logged_in_only="1" exits if user is not logged in.
	 * If called without params forces https right away. If called with by_config="1" checks the
	 * Require SSL setting from General Config and if it is ON forces https
	 *
	 * @param unknown_type $params
	 */
	function CheckSSL($params)
	{
		$ssl = $this->Application->ConfigValue('SSL_URL');
		if (!$ssl) return; //SSL URL is not set - no way to require SSL

		$require = false;

		if ($params['mode'] == 'required') {
			$require = true;
			if (isset($params['for_logged_in_only']) && $params['for_logged_in_only'] && !$this->Application->LoggedIn()) {
				$require = false;
			}

			if (isset($params['condition'])) {
				if (!$this->Application->ConfigValue($params['condition'])) {
					$require = false;
				}
			}
		}

		$http_query =& $this->Application->recallObject('HTTPQuery');
		$pass = $http_query->getRedirectParams();

		if ($require) {
			if (PROTOCOL == 'https://') {
				$this->Application->SetVar('__KEEP_SSL__', 1);
				return;
			}
			$this->Application->Redirect('', array_merge_recursive2($pass, Array('__SSL__' => 1)));
		}
		else {
			if (PROTOCOL == 'https://' && $this->Application->ConfigValue('Force_HTTP_When_SSL_Not_Required')) {
				if ($this->Application->GetVar('__KEEP_SSL__')) return;
				$this->Application->Redirect('', array_merge_recursive2($pass, Array('__SSL__' => 0)));
			}
		}
	}

	function ConstOn($params)
	{
		$name = $this->SelectParam($params,'name,const');
		return constOn($name);
	}

	function SetDefaultCategory($params)
	{
		$module_name = $params['module'];
		$module =& $this->Application->recallObject('mod.'.$module_name);
		$this->Application->SetVar('m_cat_id', $module->GetDBField('RootCat') );
	}

	function XMLTemplate($params)
	{
		define('DBG_SKIP_REPORTING', 1);
		$lang =& $this->Application->recallObject('lang.current');
		header('Content-type: text/xml; charset='.$lang->GetDBField('Charset'));
	}
}


?>