/**
* Returns a list of matching documents for the given query
*
* @author Andreas Gohr <*****@*****.**>
* @author Kazutaka Miyasaka <*****@*****.**>
*/
function _ft_pageSearch(&$data)
{
$Indexer = idx_get_indexer();
// parse the given query
$q = ft_queryParser($Indexer, $data['query']);
$data['highlight'] = $q['highlight'];
if (empty($q['parsed_ary'])) {
return array();
}
// lookup all words found in the query
$lookup = $Indexer->lookup($q['words']);
// get all pages in this dokuwiki site (!: includes nonexistent pages)
$pages_all = array();
foreach ($Indexer->getPages() as $id) {
$pages_all[$id] = 0;
// base: 0 hit
}
// process the query
$stack = array();
foreach ($q['parsed_ary'] as $token) {
switch (substr($token, 0, 3)) {
case 'W+:':
case 'W-:':
case 'W_:':
// word
$word = substr($token, 3);
$stack[] = (array) $lookup[$word];
break;
case 'P+:':
case 'P-:':
// phrase
$phrase = substr($token, 3);
// since phrases are always parsed as ((W1)(W2)...(P)),
// the end($stack) always points the pages that contain
// all words in this phrase
$pages = end($stack);
$pages_matched = array();
foreach (array_keys($pages) as $id) {
$text = utf8_strtolower(rawWiki($id));
if (strpos($text, $phrase) !== false) {
$pages_matched[$id] = 0;
// phrase: always 0 hit
}
}
$stack[] = $pages_matched;
break;
case 'N+:':
case 'N-:':
// namespace
$ns = substr($token, 3);
$pages_matched = array();
foreach (array_keys($pages_all) as $id) {
if (strpos($id, $ns) === 0) {
$pages_matched[$id] = 0;
// namespace: always 0 hit
}
}
$stack[] = $pages_matched;
break;
case 'AND':
// and operation
list($pages1, $pages2) = array_splice($stack, -2);
$stack[] = ft_resultCombine(array($pages1, $pages2));
break;
case 'OR':
// or operation
list($pages1, $pages2) = array_splice($stack, -2);
$stack[] = ft_resultUnite(array($pages1, $pages2));
break;
case 'NOT':
// not operation (unary)
$pages = array_pop($stack);
$stack[] = ft_resultComplement(array($pages_all, $pages));
break;
}
}
$docs = array_pop($stack);
if (empty($docs)) {
return array();
}
// check: settings, acls, existence
foreach (array_keys($docs) as $id) {
if (isHiddenPage($id) || auth_quickaclcheck($id) < AUTH_READ || !page_exists($id, '', false)) {
unset($docs[$id]);
}
}
// sort docs by count
arsort($docs);
return $docs;
}
/**
* Gets highlight candidates from HTTP_REFERER info
* (A compensation for "remove_url_params" option)
*/
function getCandidatesFromReferer()
{
global $HIGH;
global $ACT;
if ($ACT !== 'show' || !empty($HIGH) || !isset($_SERVER['HTTP_REFERER']) || in_array($this->disable_highlight, array('all', 'auto'))) {
return;
}
$referer = (string) $_SERVER['HTTP_REFERER'];
if (strpos($referer, DOKU_URL) === 0 && preg_match('/[?&]do=search&id=([^&]+)/', $referer, $matches)) {
// users seem to have jumped from search result link in this wiki
require_once DOKU_INC . 'inc/fulltext.php';
$query = urldecode($matches[1]);
// set highlight candidates
// (ft_queryParser has been modified since DokuWiki Rincewind)
if (function_exists('idx_get_indexer')) {
$Indexer = idx_get_indexer();
$parsed_query = ft_queryParser($Indexer, $query);
} else {
$parsed_query = ft_queryParser($query);
}
$HIGH = $parsed_query['highlight'];
}
}
/**
* The fulltext search
*
* Returns a list of matching documents for the given query
*
*/
function ft_pageSearch($query, &$highlight)
{
$q = ft_queryParser($query);
$highlight = array();
// remember for hilighting later
foreach ($q['words'] as $wrd) {
$highlight[] = str_replace('*', '', $wrd);
}
// lookup all words found in the query
$words = array_merge($q['and'], $q['not']);
if (!count($words)) {
return array();
}
$result = idx_lookup($words);
if (!count($result)) {
return array();
}
// merge search results with query
foreach ($q['and'] as $pos => $w) {
$q['and'][$pos] = $result[$w];
}
// create a list of unwanted docs
$not = array();
foreach ($q['not'] as $pos => $w) {
$not = array_merge($not, array_keys($result[$w]));
}
// combine and-words
if (count($q['and']) > 1) {
$docs = ft_resultCombine($q['and']);
} else {
$docs = $q['and'][0];
}
if (!count($docs)) {
return array();
}
// create a list of hidden pages in the result
$hidden = array();
$hidden = array_filter(array_keys($docs), 'isHiddenPage');
$not = array_merge($not, $hidden);
// filter unmatched namespaces
if (!empty($q['ns'])) {
$pattern = implode('|^', $q['ns']);
foreach ($docs as $key => $val) {
if (!preg_match('/^' . $pattern . '/', $key)) {
unset($docs[$key]);
}
}
}
// remove negative matches
foreach ($not as $n) {
unset($docs[$n]);
}
if (!count($docs)) {
return array();
}
// handle phrases
if (count($q['phrases'])) {
$q['phrases'] = array_map('utf8_strtolower', $q['phrases']);
// use this for higlighting later:
$highlight = array_merge($highlight, $q['phrases']);
$q['phrases'] = array_map('preg_quote_cb', $q['phrases']);
// check the source of all documents for the exact phrases
foreach (array_keys($docs) as $id) {
$text = utf8_strtolower(rawWiki($id));
foreach ($q['phrases'] as $phrase) {
if (!preg_match('/' . $phrase . '/usi', $text)) {
unset($docs[$id]);
// no hit - remove
break;
}
}
}
}
if (!count($docs)) {
return array();
}
// check ACL permissions
foreach (array_keys($docs) as $doc) {
if (auth_quickaclcheck($doc) < AUTH_READ) {
unset($docs[$doc]);
}
}
if (!count($docs)) {
return array();
}
// if there are any hits left, sort them by count
arsort($docs);
return $docs;
}
function search_queries(&$event, $param)
{
global $ACT;
if (is_array($ACT) || $this->is_edit_user) {
return;
}
if ($ACT != 'show' && $ACT != 'search') {
return;
}
//login,admin,profile, revisions,logout
if (empty($_SERVER['QUERY_STRING']) || $this->is_excluded($this->ipaddr)) {
return;
}
$queries = unserialize(io_readFile($this->qs_file, false));
if (!$queries) {
$queries = array('words' => array(), 'ns' => array(), 'extern' => array());
}
$elems = explode('&', html_entity_decode($_SERVER['QUERY_STRING']));
$data_found = false;
if (count($elems > 1)) {
$words = array();
$temp = array();
foreach ($elems as $el) {
if (isset($el) && $el) {
list($name, $value) = explode('=', $el);
$temp[$name] = $value;
}
}
if (isset($temp['do']) && $temp['do'] == 'search') {
$data_found = true;
if (function_exists('idx_get_indexer')) {
$ar = ft_queryParser(idx_get_indexer(), urldecode($temp['id']));
} else {
$ar = ft_queryParser(urldecode($temp['id']));
}
if (!empty($ar['phrases']) && !empty($ar['not'])) {
$words = array_diff($ar['words'], $ar['not']);
} else {
$words = $ar['words'];
}
if (!empty($words)) {
foreach ($words as $word) {
$this->set_queries($queries, $word, 'words');
}
}
if (!empty($ar['ns'])) {
foreach ($ar['ns'] as $ns) {
$this->set_queries($queries, $ns, 'ns');
}
}
} else {
foreach ($this->dw_tokens as $t) {
if (isset($temp[$t])) {
unset($temp[$t]);
}
}
if (count($temp)) {
$keys = array_keys($temp);
foreach ($keys as $k) {
if (preg_match('/rev\\d*\\[\\d*\\]/', $k)) {
unset($temp[$k]);
}
}
if (count($temp)) {
$data_found = true;
}
}
foreach ($temp as $name => $val) {
$this->set_queries($queries['extern'], urldecode($name), 'name');
if (!$val) {
$val = '_empty_';
}
$this->set_queries($queries['extern'], urldecode($val), 'val');
$this->set_named_values($queries['extern']['name'][urldecode($name)], urldecode($val));
}
}
if ($data_found) {
io_saveFile($this->qs_file, serialize($queries));
}
}
}
