------------------------------------------------------------ revno: 1090 committer: Roger Martin <[email protected]> branch nick: aikiframework timestamp: Sun 2012-02-12 23:43:23 +0100 message: engine_v8 pre-beta added added: libs/Engine_v8.php
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=== added file 'libs/Engine_v8.php' --- libs/Engine_v8.php 1970-01-01 00:00:00 +0000 +++ libs/Engine_v8.php 2012-02-12 22:43:23 +0000 @@ -0,0 +1,481 @@ +<?php + +/** + * Aiki Framework (PHP) + * + * LICENSE + * + * This source file is subject to the AGPL-3.0 license that is bundled + * with this package in the file LICENSE. + * + * @author Roger Martin (rg1024) - Aikilab http://www.aikilab.com + * @copyright (c) 2008-2011 Aiki Lab Pte Ltd + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html + * @link http://www.aikiframework.org + * @category Aiki + * @package Library + * @version 0.01 ALPHA!! + * @filesource + * PARENT + * update aiki_widgets inner join aiki_widget_porsi on aiki_widgets.father_widget=aiki_widget_porsi.id set parent_widget= aiki_widget_porsi.widget_name + */ + +if (!defined('IN_AIKI')) { + die('No direct script access allowed'); +} + +class engine_v8 { + + private $widget_css; + private $widget_html; + + /** + * Get a widget by name or ID + * @TODO move to a generic library (all engines can share this code) + */ + + private function get_widget_id($widgetNameOrId) { + global $db; + if ( (int)$widgetNameOrId > 0 ) { + $fieldTest= "id='$widgetNameOrId'"; + } else { + //sql injection test or ' + $fieldTest = "widget_name='" . str_replace("'", "", $widgetNameOrId) . "'"; + } + + $searchSQL = + "SELECT id FROM aiki_widgets ". + "WHERE {$fieldTest} AND is_active='1' LIMIT 1" ; + return $db->get_var($searchSQL); + } + + + /** + * Get widgets that 'can' match url + * @TODO move to a generic library (all engines can share this code) + */ + + function get_candidate_widgets($father=0) { + global $db, $aiki; + + $search = $aiki->url->url[0]; + $SQL = + "SELECT id, display_urls,kill_urls,widget_name, widget_target, css <> '' AS have_css " . + " FROM aiki_widgets " . + " WHERE father_widget=$father AND is_active=1 AND " . + " (widget_site='{$aiki->site}' OR widget_site ='aiki_shared') AND " . // default. + " (display_urls LIKE '%$search%' OR display_urls = '*' OR display_urls LIKE '%#%#%') AND " . + " (kill_urls='' OR kill_urls<> '$search') " . + " ORDER BY display_order, id"; + return $db->get_results($SQL); + } + + + + function get_Page_Not_Found_Widgets() { + global $db, $aiki; + + $SQL = + "SELECT id, widget_target, css <> '' AS have_css FROM aiki_widgets WHERE is_active=1 AND " . + " (widget_site='{$aiki->site}' OR widget_site ='aiki_shared') AND " . + " (display_urls LIKE '%error_404%' OR display_urls = '*' ". + " (kill_urls='' OR kill_urls not like '%error_404%') " . + " ORDER BY display_order, id"; + return $db->get_col($SQL); + } + + + /* + * Create layout + */ + + function layout(){ + global $db, $aiki; + + // Initialize + + // @TODO javascript? id for some elements? + $this->target = array( + "body"=>"" , + "header"=>"", + "css"=>array() ); + + // the widget is given directly or + if (isset($_GET["widget"])) { + if ($getWidgetId = $this->get_widget_id($_GET['widget'])) { + return $this->parse($getWidgetId); + } + return;//all work is done + } + + // or in url, + // search widget and test there is a unique response + $module_widgets = $this->get_candidate_widgets(); + $unique_widget_exists = false; + if ($module_widgets) { + foreach($module_widgets as $tested_widget){ + if ($tested_widget->display_urls != "*"){ + $unique_widget_exists = true; + break; + } + } + } + + // Error 404 page not found + $allMatch=false; + if (!$unique_widget_exists) { + // first look for widget that responds error_404, + // else use config error_404. + $module_widgets= $this->get_Page_Not_Found_Widgets(); + if ( $module_widgets ) { + $aiki->Errors->pageNotFound(false); + $allMatch = true; + } else { + return $aiki->Errors->pageNotFound(true); + } + } + + // now filter canditate widgets, before create content + foreach ( $module_widgets as $parent ) { + + // first parent + if ( $allMatch or + ($aiki->url->match($parent->display_urls) && !$aiki->url->match($parent->kill_urls)) ) { + if ( $parent->have_css == 1) { + $this->target["css"][] = $parent->id; + } + $this->target[$parent->widget_target] .= $this->parse($parent->id); + + // children.. + /* @TODO..a function */ + if ( is_array($descendants = $this->get_candidate_widgets($parent->id)) ){ + foreach ($descendants as $descendant){ + if ( $aiki->url->match($descendant->display_urls) && !$aiki->url->match($descendant->kill_urls) ) { + $this->target["css"][] = $descendant->id; + $this->target[$descendant->widget_target] .= $this->parse($descendant->id); + } + } + } + } + } + + return $this->render_html(); + } + + + function render_html(){ + global $aiki; + + $html = $aiki->Output->header($this->target['css'], $this->target['header']); + $html .= $aiki->Output->body($this->target['body']); + $html .= $aiki->Output->end(); + + return $html; + } + + + /** + * parse a given widget + */ + + function parse($widgetID){ + global $aiki, $db; + + // preParsers and postParser can be: + // regex (string) => function | array(object,method). + // a numeric index => function | array(object,method). + + $preParsers = array ( + '/\[\$([a-z0-9_]+)\]/i' => array( $this, "parse_vars"), + '/\[GET\[([a-z0-9]+)\]\]/i' => array( $this, "parse_get"), + '/\[POST\[([a-z0-9]+)\]\]/i' => array( $this, "parse_post"), + "/\(template\(([a-z0-9_]*)\)template\)/Ui" => array( $this, "parse_template")) ; + + $postParsers =array ( + array ($aiki->languages,"L10n") ) ; // added for test purpose only + + // parsers are defined here + $parsers = array ( + "widget" => "parse_widget", + "permissions" => "parse_permissions", + "view" => "parse_view", + "noaiki" => "parse_noaiki", + "sql" => "parse_sql", + "script" => "parse_script", + "t" => "parse_t", + "__" => "parse_translate"); + + $widgetData = $db->get_row ("SELECT widget,widget_name FROM aiki_widgets WHERE id=" . (int) $widgetID ); + $widget = $widgetData->widget; + $widgetName= $widgetData->widget_name; + + // process pre-parsers. + foreach ( $preParsers as $pattern => $callback ){ + if ( is_string($pattern) ){ + $widget = preg_replace_callback ( $pattern, $callback, $widget); + } else { + $widget = call_user_func ( $callback, $widget); + } + } + + // now the normal parser. + $match = false; + $offset=0; + while ( $match = $aiki->outer_markup ( $widget,$offset ) ){ + $parserToCall= $match[2]; + $len = strlen($parserToCall)+2; + + // call parser + if ( isset( $parsers[ $parserToCall]) ){ + $text = substr($widget, $match[0]+ $len,$match[1]-$len ); + $replace= call_user_func( array($this, $parsers[ $parserToCall] ), &$text); + if (is_int($replace) ){ // necesary for noaki + $offset += $replace; + continue; + } + } else { + // @TODO Error + $replace= t("Parser $parserToCall not found"); + } + + //Replacement. + $widget= substr($widget,0,$match[0]) . $replace . substr($widget,$match[0]+$match[1]+$len) ; + } + + + // process post-parsers. + foreach ( $postParsers as $pattern => $callback ){ + if ( is_string($pattern) ){ + $widget = preg_replace_callback ( $pattern, $callback, $widget); + } else { + $widget = call_user_func ( $callback, $widget); + } + } + + if ( is_debug_on() ){ + return "<!-- {$widgetName} ($widgetID) -->" . $widget ; + } + return $widget; + } + + + /** + * parse vars + */ + + function parse_vars($match){ + static $bufferReplace; + global $aiki, $page; + + if ( $bufferReplace == NULL ) { + + $pretty = $aiki->config->get('pretty_urls', 1); + $url = $aiki->config->get('url'); + // calculate view, prefix, route + $view = $aiki->site->view(); + $language = $aiki->site->language(); + $prefix = $aiki->site->prefix(); + $view_prefix= $aiki->site->view_prefix(); + $paths[] = $url; + + if ($prefix) { + $paths[] = $prefix; + } + if ($view_prefix) { + $paths[] = $view_prefix; + } + if ( count($aiki->site->languages()) > 1 ) { + $paths[] = $language; + } + + $bufferReplace = array( + 'userid' => $aiki->membership->userid, + 'full_name' => $aiki->membership->full_name, + 'username' => $aiki->membership->username, + 'user_group_level' => $aiki->membership->group_level, + 'user_permissions' => $aiki->membership->permissions, + 'language' => $aiki->site->language(), + 'page' => $page, + 'site_name' => $aiki->site->site_name(), + 'site' => $aiki->site->get_site(), + 'view' => $aiki->site->view(), + 'direction' => $aiki->languages->dir, + 'insertedby_username' => $aiki->membership->username, + 'insertedby_userid' => $aiki->membership->userid, + 'current_month' => date("n"), + 'current_year' => date("Y"), + 'current_day' => date("j"), + 'root' => $url, + 'root-language' => $url . "/" . $aiki->site->language(), + 'site_prefix' => $prefix , + 'view_prefix' => $view_prefix , + 'route' => implode("/",$paths) ); + } + + $token = $match[1]; + if ( isset($bufferReplace[$token]) ){ + return $bufferReplace[$token]; + } else { + return $match[0]; + } + } + + function parse_get( $matchs){ + $token= $matchs[0]; + return $token && isset($_GET[ $token]) ? $_GET[$token] : ""; + } + + function parse_post( $token){ + $token= $matchs[0]; + return $token && isset($_POST[$token]) ? $_POST[$token] : ""; + } + + + /* + * Parse template + */ + function parse_template($matches){ + global $db; + $id= $this->get_widget_id($matches[1]); + return is_null($id) ? "": $db->get_var ("SELECT widget FROM aiki_widgets WHERE id='$id'" ); + } + + function parse_script($view){ + /* + * @TODO USE AikiScript!!! + */ + + return "SCRIPT..PARSED" ; + } + + + /** + * translation + */ + + function parse_t($term) { + static $translate; + global $aiki; + if ( is_null($translate) ){ + $translate= $aiki->site->language()!="en"; + } + return $translate ? t($term): $term ; + } + + + function parse_translate($term) { + return __($term); + } + + + + /* + * Parse sql markup + */ + + function parse_sql( &$text){ + global $db; + if ( strpos($text,"||")===false){ + return $text; + } + list($select,$content)= explode("||", $text,2); + + $results = $db->get_results($select); + + $html=""; + if ($results) { + foreach ( $results as $row ) { + $fields= array(); + foreach ( $row as $field=>$value ){ + $fields[ "[$field]" ]= $value; + } + $html .= strtr( $content, $fields); + } + } + return $html; + + } + + /* + * Parse hits + * @TODO implements trigger. + */ + + private function parse_hits(&$hidData) { + global $db; + + $hit = explode("|", $hitData); + if ( len($hit) == 3 ){ + $db->query( + "UPDATE {$hit[0]}". + " SET {$hit[2]}={$hit[2]}+1". + " WHERE {$hit[1]}"); + } elseif (is_debug_on() ) { + return sprintf( __("BAD HITS PARAMETERS: 3 expected, %d given"), len($hit) ); + } + return ""; + } + + + function parse_widget( &$text ){ + + if ( strpos( $widget,"||")!== false ) { + list($wigetId, $select) = explode("||",$widget,2); + } else { + $widgetId= $widget ; + } + + return $this->parse($widgetId, $select); + } + + + function parse_view( &$text){ + if ( strpos($text,"||") !== false ){ + list($filter,$content) = explode("||", $text, 2); + } else { + return $text; + } + + //* fake filter + if ( $filter=="dark") { + return $content; + } + return ""; + + } + + + function parse_permission($widget){ + global $aiki, $db; + if ( strpos($widget,"||") !== false ){ + list($filter,$content) = explode("||", $widget, 2); + } else { + return $widget; + } + + /* fake permission */ + if ( trim($filter) == "user" ){ + return $content; + } + return ""; + + $sql = "SELECT group_level" . + " FROM aiki_users_groups". + " WHERE group_permissions='". addslashes($filter) ."'"; + + $get_group_level = $db->get_var($sql); + + if ( trim($filter) == $aiki->membership->permissions || + $aiki->membership->group_level < $get_group_level ) { + return $content; + } + + return ""; + } + + function parse_noaiki(&$text){ + return strlen($text) ; + } + + +}
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