define( "MW_SEARCH_BAD_QUERY", false );
class SearchEngine {
- /* private */ var $mRawtext, $mUsertext, $mSearchterms;
- /* private */ var $mTitlecond, $mTextcond;
+ /* private */ var $rawText, $filteredText, $searchTerms;
+ /* private */ var $titleCond, $textCond;
var $doSearchRedirects = true;
- var $addtoquery = array();
+ var $addToQuery = array();
var $namespacesToSearch = array();
var $alternateTitle;
- var $all_titles = false;
+ var $allTitles = false;
+
+ function SearchEngine( $text ) {
+ $this->rawText = trim( $text );
- function SearchEngine( $text )
- {
# We display the query, so let's strip it for safety
#
global $wgDBmysql4;
$lc = SearchEngine::legalSearchChars() . "()";
- if( $wgDBmysql4 ) $lc .= "\"~<>*+-";
- $this->mRawtext = $text;
- $this->mUsertext = trim( preg_replace( "/[^{$lc}]/", " ", $text ) );
- $this->mSearchterms = array();
- $this->mStrictMatching = true; # Google-style, add '+' on all terms
+ if( $wgDBmysql4 ) {
+ $lc .= "\"~<>*+-";
+ }
+ $this->filteredText = trim( preg_replace( "/[^{$lc}]/", " ", $text ) );
+ $this->searchTerms = array();
+ $this->strictMatching = true; # Google-style, add '+' on all terms
$this->db =& wfGetDB( DB_SLAVE );
}
- function queryNamespaces()
- {
+ # Return a partial WHERE clause to limit the search to the given namespaces
+ function queryNamespaces() {
$namespaces = implode( ",", $this->namespacesToSearch );
if ($namespaces == "") {
$namespaces = "0";
return "AND cur_namespace IN (" . $namespaces . ")";
}
- function searchRedirects()
- {
+ # Return a partial WHERE clause to include or exclude redirects from results
+ function searchRedirects() {
if ( $this->doSearchRedirects ) {
return "";
} else {
# Display the "power search" footer. Does not actually perform the search,
# that is done by showResults()
- function powersearch()
- {
+ function powersearch() {
global $wgUser, $wgOut, $wgLang, $wgTitle, $wgRequest;
$sk =& $wgUser->getSkin();
- $search = $this->mRawtext;
+ $search = $this->rawText;
$searchx = $wgRequest->getVal( 'searchx' );
$listredirs = $wgRequest->getVal( 'redirs' );
$tempText = ""; # Temporary text, for substitution into $ret
if( isset( $_REQUEST["searchx"] ) ) {
- $this->addtoquery["searchx"] = "1";
+ $this->addToQuery["searchx"] = "1";
}
# Do namespace checkboxes
$checked = "";
if ( $checkboxValue == 1 ) {
$checked = " checked='checked'";
- $this->addtoquery["ns{$i}"] = 1;
+ $this->addToQuery["ns{$i}"] = 1;
array_push( $this->namespacesToSearch, $i );
}
$name = str_replace( "_", " ", $namespaces[$i] );
$checked = "";
if ( $listredirs == 1 ) {
- $this->addtoquery["redirs"] = 1;
+ $this->addToQuery["redirs"] = 1;
$checked = " checked='checked'";
}
$tempText = "<input type='checkbox' value='1' name=\"redirs\"{$checked} />\n";
function setupPage() {
global $wgOut;
$wgOut->setPageTitle( wfMsg( "searchresults" ) );
- $q = wfMsg( "searchquery", htmlspecialchars( $this->mRawtext ) );
- $wgOut->setSubtitle( $q );
+ $wgOut->setSubtitle( wfMsg( "searchquery", htmlspecialchars( $this->rawText ) ) );
$wgOut->setArticleRelated( false );
$wgOut->setRobotpolicy( "noindex,nofollow" );
}
# Perform the search and construct the results page
- function showResults()
- {
+ function showResults() {
global $wgUser, $wgTitle, $wgOut, $wgLang;
global $wgDisableTextSearch, $wgInputEncoding;
$fname = "SearchEngine::showResults";
- $search = $this->mRawtext;
+ $search = $this->rawText;
$powersearch = $this->powersearch(); /* Need side-effects here? */
$this->setupPage();
$sk = $wgUser->getSkin();
- $header = wfMsg( "searchresulttext", $sk->makeKnownLink(
- wfMsg( "searchhelppage" ), wfMsg( "searchingwikipedia" ) ) );
- $wgOut->addHTML( $header );
-
- $this->parseQuery();
- if ( "" == $this->mTitlecond || "" == $this->mTextcond ) {
- $wgOut->addHTML( "<h2>" . wfMsg( "badquery" ) . "</h2>\n" .
- "<p>" . wfMsg( "badquerytext" ) . "</p>\n" );
+ $wgOut->addWikiText( wfMsg( "searchresulttext" ) );
+
+ if ( !$this->parseQuery() ) {
+ $wgOut->addWikiText(
+ "==" . wfMsg( "badquery" ) . "==\n" .
+ wfMsg( "badquerytext" ) );
return;
}
list( $limit, $offset ) = wfCheckLimits( 20, "searchlimit" );
-
- $searchnamespaces = $this->queryNamespaces();
- $redircond = $this->searchRedirects();
if ( $wgDisableTextSearch ) {
$wgOut->addHTML( wfMsg( "searchdisabled" ) );
- $wgOut->addHTML( wfMsg( "googlesearch", htmlspecialchars( $search ), htmlspecialchars( $wgInputEncoding ) ) );
+ $wgOut->addHTML( wfMsg( "googlesearch",
+ htmlspecialchars( $this->rawText ),
+ htmlspecialchars( $wgInputEncoding ) ) );
+ return;
+ }
+
+ $titleMatches = $this->getMatches( $this->titleCond, $limit, $offset );
+ $textMatches = $this->getMatches( $this->textCond, $limit, $offset );
+
+ $sk = $wgUser->getSkin();
+
+ $num = count( $titleMatches ) + count( $textMatches );
+ if ( $num >= $limit ) {
+ $top = wfShowingResults( $offset, $limit );
} else {
- if( $this->parseQuery() == MW_SEARCH_BAD_QUERY ) {
- $wgOut->addHTML( "<h2>" . wfMsg( "badquery" ) . "</h2>\n" .
- "<p>" . wfMsg( "badquerytext" ) . "</p>\n" );
- return;
- }
+ $top = wfShowingResultsNum( $offset, $limit, $num );
+ }
+ $wgOut->addHTML( "<p>{$top}</p>\n" );
- list( $limit, $offset ) = wfCheckLimits( 20, "searchlimit" );
- $titleMatches = $this->getMatches( $this->mTitlecond, $limit, $offset );
- $textMatches = $this->getMatches( $this->mTextcond, $limit, $offset );
+ # For powersearch
+ $a2l = "";
+ $akk = array_keys( $this->addToQuery );
+ foreach ( $akk AS $ak ) {
+ $a2l .= "&{$ak}={$this->addToQuery[$ak]}" ;
+ }
- $sk = $wgUser->getSkin();
-
- $num = count( $titleMatches ) + count( $textMatches );
- if ( $num >= $limit ) {
- $top = wfShowingResults( $offset, $limit );
- } else {
- $top = wfShowingResultsNum( $offset, $limit, $num );
- }
- $wgOut->addHTML( "<p>{$top}</p>\n" );
-
- # For powersearch
-
- $a2l = "";
- $akk = array_keys( $this->addtoquery );
- foreach ( $akk AS $ak ) {
- $a2l .= "&{$ak}={$this->addtoquery[$ak]}" ;
- }
-
- $sl = wfViewPrevNext( $offset, $limit, "",
- "search=" . wfUrlencode( $this->mUsertext ) . $a2l );
- $wgOut->addHTML( "<br />{$sl}\n" );
-
- $foundsome = $this->showMatches( $titleMatches, $offset, "notitlematches", "titlematches" )
- || $this->showMatches( $textMatches, $offset, "notextmatches", "textmatches" );
-
- if ( ! $foundsome ) {
- $wgOut->addHTML( "<p>" . wfMsg( "nonefound" ) . "</p>\n" );
- }
- $wgOut->addHTML( "<p>{$sl}</p>\n" );
- $wgOut->addHTML( $powersearch );
+ $prevnext = wfViewPrevNext( $offset, $limit, "",
+ "search=" . wfUrlencode( $this->filteredText ) . $a2l );
+ $wgOut->addHTML( "<br />{$prevnext}\n" );
+
+ $foundsome = $this->showMatches( $titleMatches, $offset, "notitlematches", "titlematches" )
+ || $this->showMatches( $textMatches, $offset, "notextmatches", "textmatches" );
+
+ if ( !$foundsome ) {
+ $wgOut->addWikiText( wfMsg( "nonefound" ) );
}
+ $wgOut->addHTML( "<p>{$prevnext}</p>\n" );
+ $wgOut->addHTML( $powersearch );
}
- function legalSearchChars()
- {
+ function legalSearchChars() {
$lc = "A-Za-z_'0-9\\x80-\\xFF\\-";
return $lc;
}
- function parseQuery()
- {
- global $wgDBminWordLen, $wgLang, $wgDBmysql4;
-
+ function parseQuery() {
+ global $wgDBmysql4;
if( $wgDBmysql4 ) {
# Use cleaner boolean search if available
- return $this->parseQuery4( $this->db );
+ return $this->parseQuery4();
+ } else {
+ # Fall back to ugly hack with multiple search clauses
+ return $this->parseQuery3();
}
+ }
+
+ function parseQuery3() {
+ global $wgDBminWordLen, $wgLang;
+
# on non mysql4 database: get list of words we don't want to search for
require_once( "FulltextStoplist.php" );
$lc = SearchEngine::legalSearchChars() . "()";
- $q = preg_replace( "/([()])/", " \\1 ", $this->mUsertext );
+ $q = preg_replace( "/([()])/", " \\1 ", $this->filteredText );
$q = preg_replace( "/\\s+/", " ", $q );
$w = explode( " ", trim( $q ) );
$cond .= " (MATCH (##field##) AGAINST ('" .
$this->db->strencode( $word ). "'))";
$last = $word;
- array_push( $this->mSearchterms, "\\b" . $word . "\\b" );
+ array_push( $this->searchTerms, "\\b" . $word . "\\b" );
}
}
- if ( 0 == count( $this->mSearchterms ) ) {
+ if ( 0 == count( $this->searchTerms ) ) {
return MW_SEARCH_BAD_QUERY;
}
- $this->mTitlecond = "(" . str_replace( "##field##",
+ $this->titleCond = "(" . str_replace( "##field##",
"si_title", $cond ) . " )";
- $this->mTextcond = "(" . str_replace( "##field##",
+ $this->textCond = "(" . str_replace( "##field##",
"si_text", $cond ) . " AND (cur_is_redirect=0) )";
return MW_SEARCH_OK;
}
- function parseQuery4()
- {
+ function parseQuery4() {
global $wgLang;
$lc = SearchEngine::legalSearchChars();
$searchon = "";
- $this->mSearchterms = array();
+ $this->searchTerms = array();
# FIXME: This doesn't handle parenthetical expressions.
if( preg_match_all( '/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/',
- $this->mUsertext, $m, PREG_SET_ORDER ) ) {
+ $this->filteredText, $m, PREG_SET_ORDER ) ) {
foreach( $m as $terms ) {
if( $searchon !== "" ) $searchon .= " ";
- if( $this->mStrictMatching && ($terms[1] == "") ) {
+ if( $this->strictMatching && ($terms[1] == "") ) {
$terms[1] = "+";
}
$searchon .= $terms[1] . $wgLang->stripForSearch( $terms[2] );
} else {
$regexp = preg_quote( str_replace( '"', '', $terms[2] ) );
}
- $this->mSearchterms[] = $regexp;
+ $this->searchTerms[] = $regexp;
}
wfDebug( "Would search with '$searchon'\n" );
- wfDebug( "Match with /\b" . implode( '\b|\b', $this->mSearchterms ) . "\b/\n" );
+ wfDebug( "Match with /\b" . implode( '\b|\b', $this->searchTerms ) . "\b/\n" );
} else {
- wfDebug( "Can't understand search query '$this->mUsertext'\n" );
+ wfDebug( "Can't understand search query '{$this->filteredText}'\n" );
}
$searchon = $this->db->strencode( $searchon );
- $this->mTitlecond = " MATCH(si_title) AGAINST('$searchon' IN BOOLEAN MODE)";
- $this->mTextcond = " (MATCH(si_text) AGAINST('$searchon' IN BOOLEAN MODE) AND cur_is_redirect=0)";
+ $this->titleCond = " MATCH(si_title) AGAINST('$searchon' IN BOOLEAN MODE)";
+ $this->textCond = " (MATCH(si_text) AGAINST('$searchon' IN BOOLEAN MODE) AND cur_is_redirect=0)";
return MW_SEARCH_OK;
}
- function &getMatches( $cond, $limit, $offset ) {
+ function &getMatches( $cond, $limit, $offset = 0 ) {
$searchindex = $this->db->tableName( 'searchindex' );
$cur = $this->db->tableName( 'cur' );
$searchnamespaces = $this->queryNamespaces();
"cur_text FROM $cur,$searchindex " .
"WHERE cur_id=si_page AND {$cond} " .
"{$searchnamespaces} {$redircond} " .
- "LIMIT {$offset}, {$limit}";
+ $this->db->limitResult( $limit, $offset );
$res = $this->db->query( $sql, "SearchEngine::getMatches" );
$matches = array();
}
}
- function showHit( $row )
- {
+ function showHit( $row ) {
global $wgUser, $wgOut, $wgLang;
$t = Title::makeName( $row->cur_namespace, $row->cur_title );
+ if( is_null( $t ) ) {
+ $wgOut->addHTML( "<!-- Broken link in search result -->\n" );
+ return;
+ }
$sk = $wgUser->getSkin();
$contextlines = $wgUser->getOption( "contextlines" );
$wgOut->addHTML( "<li>{$link} ({$size})" );
$lines = explode( "\n", $row->cur_text );
- $pat1 = "/(.*)(" . implode( "|", $this->mSearchterms ) . ")(.*)/i";
+ $pat1 = "/(.*)(" . implode( "|", $this->searchTerms ) . ")(.*)/i";
$lineno = 0;
foreach ( $lines as $line ) {
$found = $m[2];
$line = htmlspecialchars( $pre . $found . $post );
- $pat2 = "/(" . implode( "|", $this->mSearchterms ) . ")/i";
+ $pat2 = "/(" . implode( "|", $this->searchTerms ) . ")/i";
$line = preg_replace( $pat2,
- "<font color='red'>\\1</font>", $line );
+ "<span class='searchmatch'>\\1</span>", $line );
$wgOut->addHTML( "<br /><small>{$lineno}: {$line}</small>\n" );
}
$wgOut->addHTML( "</li>\n" );
}
- function goResult()
- {
- global $wgOut, $wgGoToEdit;
- global $wgDisableTextSearch;
- $fname = "SearchEngine::goResult";
-
- $search = trim( $this->mRawtext );
-
- # Try to go to page as entered.
- #
- $t = Title::newFromText( $search );
-
- # If the string cannot be used to create a title
- if( false == $t ){
- $this->showResults();
- return;
- }
-
+ function getNearMatch() {
# Exact match? No need to look further.
- if ( $t->getNamespace() == NS_SPECIAL || 0 != $t->getArticleID() ) {
- $wgOut->redirect( $t->getFullURL() );
- return;
+ $title = Title::newFromText( $this->rawText );
+ if ( $title->getNamespace() == NS_SPECIAL || 0 != $title->getArticleID() ) {
+ return $title;
}
# Now try all lower case (i.e. first letter capitalized)
#
- $t = Title::newFromText( strtolower( $search ) );
- if ( 0 != $t->getArticleID() ) {
- $wgOut->redirect( $t->getFullURL() );
- return;
+ $title = Title::newFromText( strtolower( $this->rawText ) );
+ if ( 0 != $title->getArticleID() ) {
+ return $title;
}
# Now try capitalized string
#
- $t = Title::newFromText( ucwords( strtolower( $search ) ) );
- if ( 0 != $t->getArticleID() ) {
- $wgOut->redirect( $t->getFullURL() );
- return;
+ $title = Title::newFromText( ucwords( strtolower( $this->rawText ) ) );
+ if ( 0 != $title->getArticleID() ) {
+ return $title;
}
# Now try all upper case
#
- $t = Title::newFromText( strtoupper( $search ) );
- if ( 0 != $t->getArticleID() ) {
- $wgOut->redirect( $t->getFullURL() );
- return;
+ $title = Title::newFromText( strtoupper( $this->rawText ) );
+ if ( 0 != $title->getArticleID() ) {
+ return $title;
}
# Entering an IP address goes to the contributions page
- if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $search ) ) {
- $title = Title::makeTitle( NS_SPECIAL, "Contributions" );
- $wgOut->redirect( $title->getFullUrl( "target=$search" ) );
+ if ( preg_match( '/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/', $this->rawText ) ) {
+ $title = Title::makeTitle( NS_SPECIAL, "Contributions/" . $this->rawText );
+ return $title;
+ }
+
+ return NULL;
+ }
+
+ function goResult() {
+ global $wgOut, $wgGoToEdit;
+ global $wgDisableTextSearch;
+ $fname = "SearchEngine::goResult";
+
+ # Try to go to page as entered.
+ #
+ $t = Title::newFromText( $this->rawText );
+
+ # If the string cannot be used to create a title
+ if( is_null( $t ) ){
+ $this->showResults();
return;
}
+ # If there's an exact or very near match, jump right there.
+ $t = $this->getNearMatch();
+ if( !is_null( $t ) ) {
+ $wgOut->redirect( $t->getFullURL() );
+ return;
+ }
+
# No match, generate an edit URL
- $t = Title::newFromText( $this->mRawtext );
+ $t = Title::newFromText( $this->rawText );
# If the feature is enabled, go straight to the edit page
if ( $wgGoToEdit ) {
global $wgDisableFuzzySearch;
if(! $wgDisableFuzzySearch ){
foreach( array(NS_MAIN, NS_WP, NS_USER, NS_IMAGE, NS_MEDIAWIKI) as $namespace){
- $anyhit |= SearchEngine::doFuzzyTitleSearch( $search, $namespace );
+ $anyhit |= SearchEngine::doFuzzyTitleSearch( $this->rawText, $namespace );
}
}
$fname = 'SearchEngin::getTitlesByLength';
// to avoid multiple costly SELECTs in case of no memcached
- if( $this->all_titles ){
- if( isset( $this->all_titles[$aLength][$aNamespace] ) ){
- return $this->all_titles[$aLength][$aNamespace];
+ if( $this->allTitles ){
+ if( isset( $this->allTitles[$aLength][$aNamespace] ) ){
+ return $this->allTitles[$aLength][$aNamespace];
} else {
return array();
}
$wgMemc->set( $mkey, $title_arr, 3600 * 24 );
}
}
- $this->all_titles = $titles;
+ $this->allTitles = $titles;
if( isset( $titles[$aLength][$aNamespace] ) )
return $titles[$aLength][$aNamespace];
else
dépôts / lhc / web / wiklou.git / commitdiff