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<?php
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// $Id: search.php 452 2007-04-30 12:40:01Z Ruebenwurzel $
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/*
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 Website Baker Project <http://www.websitebaker.org/>
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 Copyright (C) 2004-2007, Ryan Djurovich
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 Website Baker is free software; you can redistribute it and/or modify
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 it under the terms of the GNU General Public License as published by
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 the Free Software Foundation; either version 2 of the License, or
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 (at your option) any later version.
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 Website Baker is distributed in the hope that it will be useful,
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 but WITHOUT ANY WARRANTY; without even the implied warranty of
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 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 GNU General Public License for more details.
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 You should have received a copy of the GNU General Public License
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 along with Website Baker; if not, write to the Free Software
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 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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*/
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if(!defined('WB_URL')) { 
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	header('Location: index.php');
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	exit(0);
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}
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// Include the WB functions file
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require_once(WB_PATH.'/framework/functions.php');
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// Check if search is enabled
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if(SHOW_SEARCH != true) {
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	echo $TEXT['SEARCH'].' '.$TEXT['DISABLED'];
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} else {
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	// Make pages_listed and items_listed blank arrays
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	$pages_listed = array();
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	$items_listed = array();
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	// Get the search type
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	$match = 'all';
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	if(isset($_REQUEST['match'])) {
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		$match = $_REQUEST['match'];
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	}
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	// Get search string
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	if(isset($_REQUEST['string'])) {
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		if ($match!='exact') {
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			$string=str_replace(',', '', $_REQUEST['string']);
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		} else {
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			$string=$_REQUEST['string'];
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		}
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		// reverse potential magic_quotes action
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		$original_string=$wb->strip_slashes($string);
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		// Double backslashes (mySQL needs doubly escaped backslashes in LIKE comparisons)
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		$string = addslashes($wb->escape_backslashes($original_string));
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		// convert a copy of $string to HTML-ENTITIES
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		$string_entities = umlauts_to_entities($string);
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		// and do some convertion to both
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		require(WB_PATH.'/search/search_convert.php');
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		$string = strtr($string,$string_conv_all);
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		$string_entities = strtr($string_entities,$string_entities_conv_all);
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		$search_string = $string_entities;
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	} else {
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		$string = '';
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		$search_string = '';
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	}
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	// Work-out what to do (match all words, any words, or do exact match), and do relevant with query settings
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	$all_checked = '';
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	$any_checked = '';
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	$exact_checked = '';
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	if($match != 'exact') {
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		// Split string into array with explode() function
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		$exploded_string = explode(' ', $string);
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		// Make sure there is no blank values in the array
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		$string = array();
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		foreach($exploded_string AS $each_exploded_string) {
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			if($each_exploded_string != '') {
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				$string[] = $each_exploded_string;
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			}
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		}
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		// Split $string_entities, too
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		$exploded_string = explode(' ', $string_entities);
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		// Make sure there is no blank values in the array
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		$string_entities = array();
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		foreach($exploded_string AS $each_exploded_string) {
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			if($each_exploded_string != '') {
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				$string_entities[] = $each_exploded_string;
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			}
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		}
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		if ($match == 'any') {
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			$any_checked = ' checked="checked"';
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			$logical_operator = ' OR';
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		} else {
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			$all_checked = ' checked="checked"';
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			$logical_operator = ' AND';
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		}
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	} else {
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		$exact_checked = ' checked="checked"';
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		$exact_string=$string;
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		$string=array();
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		$string[]=$exact_string;
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		$exact_string=$string_entities;
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		$string_entities=array();
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		$string_entities[]=$exact_string;
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	}	
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	// Get list of usernames and display names
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	$query_users = $database->query("SELECT user_id,username,display_name FROM ".TABLE_PREFIX."users");
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	$users = array('0' => array('display_name' => $TEXT['UNKNOWN'], 'username' => strtolower($TEXT['UNKNOWN'])));
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	if($query_users->numRows() > 0) {
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		while($user = $query_users->fetchRow()) {
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			$users[$user['user_id']] = array('display_name' => $user['display_name'], 'username' => $user['username']);
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		}
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	}
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	// Get search settings
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	$query_header = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'header' LIMIT 1");
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	$fetch_header = $query_header->fetchRow();
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	$query_footer = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'footer' LIMIT 1");
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	$fetch_footer = $query_footer->fetchRow();
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	$query_results_header = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'results_header' LIMIT 1");
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	$fetch_results_header = $query_results_header->fetchRow();
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	$query_results_footer = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'results_footer' LIMIT 1");
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	$fetch_results_footer = $query_results_footer->fetchRow();
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	$query_results_loop = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'results_loop' LIMIT 1");
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	$fetch_results_loop = $query_results_loop->fetchRow();
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	$query_no_results = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'no_results' LIMIT 1");
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	$fetch_no_results = $query_no_results->fetchRow();
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	// Replace vars in search settings with values
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	$vars = array('[SEARCH_STRING]', '[WB_URL]', '[PAGE_EXTENSION]', '[TEXT_RESULTS_FOR]');
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	$values = array($search_string, WB_URL, PAGE_EXTENSION, $TEXT['RESULTS_FOR']);
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	$search_footer = str_replace($vars, $values, ($fetch_footer['value']));
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	$search_results_header = str_replace($vars, $values, ($fetch_results_header['value']));
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	$search_results_footer = str_replace($vars, $values, ($fetch_results_footer['value']));
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	// Do extra vars/values replacement
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	$vars = array('[SEARCH_STRING]', '[WB_URL]', '[PAGE_EXTENSION]', '[TEXT_SEARCH]', '[TEXT_ALL_WORDS]', '[TEXT_ANY_WORDS]', '[TEXT_EXACT_MATCH]', '[TEXT_MATCH]', '[TEXT_MATCHING]', '[ALL_CHECKED]', '[ANY_CHECKED]', '[EXACT_CHECKED]', '[REFERRER_ID]');
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	$values = array($search_string, WB_URL, PAGE_EXTENSION, $TEXT['SEARCH'], $TEXT['ALL_WORDS'], $TEXT['ANY_WORDS'], $TEXT['EXACT_MATCH'], $TEXT['MATCH'], $TEXT['MATCHING'], $all_checked, $any_checked, $exact_checked, REFERRER_ID);
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	$search_header = str_replace($vars, $values, ($fetch_header['value']));
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	$vars = array('[TEXT_NO_RESULTS]');
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	$values = array($TEXT['NO_RESULTS']);
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	$search_no_results = str_replace($vars, $values, ($fetch_no_results['value']));
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	// Show search header
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	echo $search_header;
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	// Work-out if the user has already entered their details or not
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	if($string != '' AND $string != ' ' AND $string != '  ' AND $string != array()) {
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		// Show search results_header
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		echo $search_results_header;
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		// Search page details only, such as description, keywords, etc.
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		$query_pages = "SELECT page_id, page_title, menu_title, link, description, modified_when, modified_by FROM ".TABLE_PREFIX."pages WHERE ";
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		$count = 0;
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		foreach($string AS $each_string) {
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			if($count != 0) { 
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				$query_pages .= $logical_operator;
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			}
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			$query_pages .= " visibility != 'none' AND visibility != 'deleted' AND searching = '1'".
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			" AND (page_title LIKE '%$each_string%' OR menu_title LIKE '%$each_string%' OR description LIKE '%$each_string%' OR keywords LIKE '%$each_string%')";
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			$count = $count+1;
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		}
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		$count = 0;
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		$query_pages .= ' OR';
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		foreach($string_entities AS $each_string) {
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			if($count != 0) { 
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				$query_pages .= $logical_operator;
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			}
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			$query_pages .= " visibility != 'none' AND visibility != 'deleted' AND searching = '1'".
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			" AND (page_title LIKE '%$each_string%' OR menu_title LIKE '%$each_string%' OR description LIKE '%$each_string%' OR keywords LIKE '%$each_string%')";
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			$count = $count+1;
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		}
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		$query_pages = $database->query($query_pages);
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		// Loop through pages
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		if($query_pages->numRows() > 0) {
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			while($page = $query_pages->fetchRow()) {
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				// Get page link
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				$link = page_link($page['link']);
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				//Add search string for highlighting
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				if ($match!='exact') {
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					$sstring = implode(" ", $string);
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					$link = $link."?searchresult=1&amp;sstring=".urlencode($sstring);
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				}
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				else {
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					$sstring = strtr($string[0], " ", "_");
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					$link = $link."?searchresult=2&amp;sstring=".urlencode($sstring);
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				}
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				// Set vars to be replaced by values
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				$vars = array('[LINK]', '[TITLE]', '[DESCRIPTION]', '[USERNAME]','[DISPLAY_NAME]','[DATE]','[TIME]','[TEXT_LAST_UPDATED_BY]','[TEXT_ON]');
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				if($page['modified_when'] > 0) {
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					$date = gmdate(DATE_FORMAT, $page['modified_when']+TIMEZONE);
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					$time = gmdate(TIME_FORMAT, $page['modified_when']+TIMEZONE);
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				} else {
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					$date = $TEXT['UNKNOWN'].' '.$TEXT['DATE'];
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					$time = $TEXT['UNKNOWN'].' '.$TEXT['TIME'];
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				}
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				$values = array($link, ($page['page_title']),($page['description']), $users[$page['modified_by']]['username'], $users[$page['modified_by']]['display_name'], $date, $time, $TEXT['LAST_UPDATED_BY'], strtolower($TEXT['ON']));
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				// Show loop code with vars replaced by values
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				if($values != array()) {
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					echo str_replace($vars, $values, ($fetch_results_loop['value']));
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				}
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				// Say that we have already listed this page id
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				$pages_listed[$page['page_id']] = true;
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				// Set values to blank
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				$value = array();
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			}
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		}
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		// Get modules that have registered for custom query's to be conducted
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		$get_modules = $database->query("SELECT value,extra FROM ".TABLE_PREFIX."search WHERE name = 'module'");
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		// Loop through each module
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		if($get_modules->numRows() > 0) {
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			while($module = $get_modules->fetchRow()) {
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				// Get module name
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				$module_name = $module['value'];
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				// Get fields to use for title, link, etc.
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				$fields = unserialize($module['extra']);
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				// Get query start
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				$get_query_start = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'query_start' AND extra = '$module_name' LIMIT 1");
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				if($get_query_start->numRows() > 0) {
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					// Fetch query start
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					$fetch_query_start = $get_query_start->fetchRow();
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					// Prepare query start for execution by replacing {TP} with the TABLE_PREFIX
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					$query_start = str_replace('[TP]', TABLE_PREFIX, ($fetch_query_start['value']));
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					// Get query end
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					$get_query_end = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'query_end' AND extra = '$module_name' LIMIT 1");
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					if($get_query_end->numRows() > 0) {
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						// Fetch query start
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						$fetch_query_end = $get_query_end->fetchRow();
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						// Set query end
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						$query_end = ($fetch_query_end['value']);
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						// Get query body
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						$get_query_body = $database->query("SELECT value FROM ".TABLE_PREFIX."search WHERE name = 'query_body' AND extra = '$module_name' LIMIT 1");
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						if($get_query_body->numRows() > 0) {
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							// Fetch query start
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							$fetch_query_body = $get_query_body->fetchRow();
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							// Prepare query body for execution by replacing {STRING} with the correct one
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							$query_body = str_replace(array('[TP]','[O]','[W]'), array(TABLE_PREFIX,'LIKE','%'), ($fetch_query_body['value']));
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							// Loop through query body for each string, then combine with start and end
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							$prepared_query = $query_start;
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							$count = 0;
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							foreach($string AS $each_string) {
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								if($count != 0) {
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									$prepared_query .= $logical_operator;
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								}
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								$prepared_query .= str_replace('[STRING]', $each_string, $query_body);
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								$count = $count+1;
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							}
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							$count=0;
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							$prepared_query .= ' OR ';
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							foreach($string_entities AS $each_string) {
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								if($count != 0) {
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									$prepared_query .= $logical_operator;
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								}
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								$prepared_query .= str_replace('[STRING]', $each_string, $query_body);
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								$count = $count+1;
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							}
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							$prepared_query .= $query_end;
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							// Execute query
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							$query = $database->query($prepared_query);
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							// Loop though queried items
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							if($query->numRows() > 0) {
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								while($page = $query->fetchRow()) {
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									// Only show this page if it hasn't already been list
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									if(!isset($fields['page_id']) OR !isset($pages_listed[$page[$fields['page_id']]])) {
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										// Get page link
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										$link = page_link($page[$fields['link']]);
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										//Add search string for highlighting
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										if ($match!='exact') {
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											$sstring = implode(" ", $string);
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											$link = $link."?searchresult=1&amp;sstring=".urlencode($sstring);
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										}
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										else {
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											$sstring = strtr($string[0], " ", "_");
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											$link = $link."?searchresult=2&amp;sstring=".urlencode($sstring);
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										}
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										// Set vars to be replaced by values
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										$vars = array('[LINK]', '[TITLE]', '[DESCRIPTION]', '[USERNAME]','[DISPLAY_NAME]','[DATE]','[TIME]','[TEXT_LAST_UPDATED_BY]','[TEXT_ON]');
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										if($page[$fields['modified_when']] > 0) {
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											$date = gmdate(DATE_FORMAT, $page[$fields['modified_when']]+TIMEZONE);
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											$time = gmdate(TIME_FORMAT, $page[$fields['modified_when']]+TIMEZONE);
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										} else {
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											$date = $TEXT['UNKNOWN'].' '.$TEXT['DATE'];
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											$time = $TEXT['UNKNOWN'].' '.$TEXT['TIME'];
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										}
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										$values = array($link, ($page[$fields['title']]), ($page[$fields['description']]), $users[$page[$fields['modified_by']]]['username'], $users[$page[$fields['modified_by']]]['display_name'], $date, $time, $TEXT['LAST_UPDATED_BY'], strtolower($TEXT['ON']));
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										// Show loop code with vars replaced by values
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										echo str_replace($vars, $values, ($fetch_results_loop['value']));
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										// Say that this page or item has been listed if we can
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										if(isset($fields['page_id'])) {
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											$pages_listed[$page[$fields['page_id']]] = true;
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										} elseif(isset($fields['item_id'])) {
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											$items_listed[$page[$fields['item_id']]] = true;
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										}
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									}
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								}
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							}
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						}
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					}
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				}
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			}
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			// Show search results_footer
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			echo $search_results_footer;
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		}
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		// Say no items found if we should
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		if($pages_listed == array() AND $items_listed == array()) {
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			echo $search_no_results;
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		}
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	}
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	// Show search footer
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	echo $search_footer;
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}
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?>
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