if( $wgDBmysql4 ) $lc .= "\"~<>*+-";
$this->mUsertext = trim( preg_replace( "/[^{$lc}]/", " ", $text ) );
$this->mSearchterms = array();
+ $this->mStrictMatching = true; # Google-style, add '+' on all terms
}
function queryNamespaces()
return "AND cur_is_redirect=0 ";
}
-
-
/* private */ function initNamespaceCheckbox( $i )
{
global $wgUser, $wgNamespacesToBeSearchedDefault;
- if ($wgUser->getRights()) {
+ if ($wgUser->getID()) {
// User is logged in so we retrieve his default namespaces
return $wgUser->getOption( "searchNs".$i );
}
}
}
-
-
+ # Display the "power search" footer. Does not actually perform the search,
+ # that is done by showResults()
function powersearch()
{
global $wgUser, $wgOut, $wgLang, $wgTitle;
- $nscb = array();
$search = $_REQUEST['search'];
$searchx = $_REQUEST['searchx'];
$listredirs = $_REQUEST['redirs'];
+
+ $ret = wfMsg("powersearchtext"); # Text to be returned
+ $tempText = ""; # Temporary text, for substitution into $ret
-
- if ( ! isset ( $searchx ) ) { /* First time here */
- $listredirs = 1;
- for ($i = 0; ($i <= 7); $i++)
- {
- $nscb[$i] = $this->initNamespaceCheckbox($i);
- }
- } else {
- $nscb[0] = $_REQUEST['ns0'];
- $nscb[1] = $_REQUEST['ns1'];
- $nscb[2] = $_REQUEST['ns2'];
- $nscb[3] = $_REQUEST['ns3'];
- $nscb[4] = $_REQUEST['ns4'];
- $nscb[5] = $_REQUEST['ns5'];
- $nscb[6] = $_REQUEST['ns6'];
- $nscb[7] = $_REQUEST['ns7'];
+ if( isset( $_REQUEST["searchx"] ) ) {
+ $this->addtoquery["searchx"] = "1";
}
+
+ # Do namespace checkboxes
+ $namespaces = $wgLang->getNamespaces();
+ foreach ( $namespaces as $i => $namespace ) {
+ # Skip virtual namespaces
+ if ( $i < 0 ) {
+ continue;
+ }
- $this->checkboxes["searchx"] = 1;
- $ret = wfMsg("powersearchtext");
-
- # Determine namespace checkboxes
+ $formVar = "ns$i";
- $ns = $wgLang->getNamespaces();
- array_shift( $ns ); /* Skip "Special" */
+ # Initialise checkboxValues, either from defaults or from
+ # a previous invocation
+ if ( !isset( $searchx ) ) {
+ $checkboxValue = $this->initNamespaceCheckbox( $i );
+ } else {
+ $checkboxValue = $_REQUEST[$formVar];
+ }
- $r1 = "";
- for ( $i = 0; $i < count( $ns ); ++$i ) {
$checked = "";
- if ( $nscb[$i] == 1 ) {
+ if ( $checkboxValue == 1 ) {
$checked = " checked";
$this->addtoquery["ns{$i}"] = 1;
array_push( $this->namespacesToSearch, $i );
}
- $name = str_replace( "_", " ", $ns[$i] );
- if ( "" == $name ) { $name = wfMsg( "blanknamespace" ); }
+ $name = str_replace( "_", " ", $namespaces[$i] );
+ if ( "" == $name ) {
+ $name = wfMsg( "blanknamespace" );
+ }
- if ( 0 != $i ) { $r1 .= " "; }
- $r1 .= "<input type=checkbox value=\"1\" name=\"" .
+ if ( $tempText !== "" ) {
+ $tempText .= " ";
+ }
+ $tempText .= "<input type=checkbox value=\"1\" name=\"" .
"ns{$i}\"{$checked}>{$name}\n";
}
- $ret = str_replace ( "$1", $r1, $ret );
+ $ret = str_replace ( "$1", $tempText, $ret );
# List redirects checkbox
$this->addtoquery["redirs"] = 1;
$checked = " checked";
}
- $r2 = "<input type=checkbox value=1 name=\"redirs\"{$checked}>\n";
- $ret = str_replace( "$2", $r2, $ret );
+ $tempText = "<input type=checkbox value=1 name=\"redirs\"{$checked}>\n";
+ $ret = str_replace( "$2", $tempText, $ret );
# Search field
- $r3 = "<input type=text name=\"search\" value=\"" .
+ $tempText = "<input type=text name=\"search\" value=\"" .
htmlspecialchars( $search ) ."\" width=80>\n";
- $ret = str_replace( "$3", $r3, $ret );
+ $ret = str_replace( "$3", $tempText, $ret );
# Searchx button
- $r9 = "<input type=submit name=\"searchx\" value=\"" .
+ $tempText = "<input type=submit name=\"searchx\" value=\"" .
wfMsg("powersearch") . "\">\n";
- $ret = str_replace( "$9", $r9, $ret );
+ $ret = str_replace( "$9", $tempText, $ret );
$ret = "<br><br>\n<form id=\"powersearch\" method=\"get\" " .
"action=\"" . wfLocalUrl( "" ) . "\">\n{$ret}\n</form>\n";
if ( isset ( $searchx ) ) {
- if ( ! $listredirs ) { $this->doSearchRedirects = false; }
+ if ( ! $listredirs ) {
+ $this->doSearchRedirects = false;
+ }
}
return $ret;
}
+ # Perform the search and construct the results page
function showResults()
{
global $wgUser, $wgTitle, $wgOut, $wgLang, $wgDisableTextSearch;
$searchnamespaces = $this->queryNamespaces();
$redircond = $this->searchRedirects();
- $sql = "SELECT cur_id,cur_namespace,cur_title," .
- "cur_text FROM cur,searchindex " .
- "WHERE cur_id=si_page AND {$this->mTitlecond} " .
- "{$searchnamespaces} {$redircond}" .
- "LIMIT {$offset}, {$limit}";
- $res1 = wfQuery( $sql, DB_READ, $fname );
- $num = wfNumRows($res1);
-
if ( $wgDisableTextSearch ) {
- $res2 = 0;
+ $wgOut->addHTML( wfMsg( "searchdisabled", htmlspecialchars( $search ), $wgInputEncoding ) );
} else {
+ $sql = "SELECT cur_id,cur_namespace,cur_title," .
+ "cur_text FROM cur,searchindex " .
+ "WHERE cur_id=si_page AND {$this->mTitlecond} " .
+ "{$searchnamespaces} {$redircond}" .
+ "LIMIT {$offset}, {$limit}";
+ $res1 = wfQuery( $sql, DB_READ, $fname );
+ $num = wfNumRows($res1);
+
+ $sk = $wgUser->getSkin();
+ $text = wfMsg( "searchresulttext", $sk->makeKnownLink(
+ wfMsg( "searchhelppage" ), wfMsg( "searchingwikipedia" ) ) );
+ $wgOut->addHTML( $text );
+
+ $this->parseQuery();
+ if ( "" == $this->mTitlecond || "" == $this->mTextcond ) {
+ $wgOut->addHTML( "<h2>" . wfMsg( "badquery" ) . "</h2>\n" .
+ "<p>" . wfMsg( "badquerytext" ) );
+ return;
+ }
+ list( $limit, $offset ) = wfCheckLimits( 20, "searchlimit" );
+
+ $searchnamespaces = $this->queryNamespaces();
+ $redircond = $this->searchRedirects();
+
+ $sql = "SELECT cur_id,cur_namespace,cur_title," .
+ "cur_text FROM cur,searchindex " .
+ "WHERE cur_id=si_page AND {$this->mTitlecond} " .
+ "{$searchnamespaces} {$redircond}" .
+ "LIMIT {$offset}, {$limit}";
+ $res1 = wfQuery( $sql, DB_READ, $fname );
+ $num = wfNumRows($res1);
+
$sql = "SELECT cur_id,cur_namespace,cur_title," .
"cur_text FROM cur,searchindex " .
"WHERE cur_id=si_page AND {$this->mTextcond} " .
"LIMIT {$offset}, {$limit}";
$res2 = wfQuery( $sql, DB_READ, $fname );
$num = $num + wfNumRows($res2);
- }
-
- if ( $num == $limit ) {
- $top = wfShowingResults( $offset, $limit);
- } else {
- $top = wfShowingResultsNum( $offset, $limit, $num );
- }
- $wgOut->addHTML( "<p>{$top}\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 = false;
-
- if ( 0 == wfNumRows( $res1 ) ) {
- $wgOut->addHTML( "<h2>" . wfMsg( "notitlematches" ) .
- "</h2>\n" );
- } else {
- $foundsome = true;
- $off = $offset + 1;
- $wgOut->addHTML( "<h2>" . wfMsg( "titlematches" ) .
- "</h2>\n<ol start='{$off}'>" );
- while ( $row = wfFetchObject( $res1 ) ) {
- $this->showHit( $row );
+ if ( $num == $limit ) {
+ $top = wfShowingResults( $offset, $limit);
+ } else {
+ $top = wfShowingResultsNum( $offset, $limit, $num );
+ }
+ $wgOut->addHTML( "<p>{$top}\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 = false;
+
+ if ( 0 == wfNumRows( $res1 ) ) {
+ $wgOut->addHTML( "<h2>" . wfMsg( "notitlematches" ) .
+ "</h2>\n" );
+ } else {
+ $foundsome = true;
+ $off = $offset + 1;
+ $wgOut->addHTML( "<h2>" . wfMsg( "titlematches" ) .
+ "</h2>\n<ol start='{$off}'>" );
+
+ while ( $row = wfFetchObject( $res1 ) ) {
+ $this->showHit( $row );
+ }
+ wfFreeResult( $res1 );
+ $wgOut->addHTML( "</ol>\n" );
}
- wfFreeResult( $res1 );
- $wgOut->addHTML( "</ol>\n" );
- }
- if ( $wgDisableTextSearch ) {
- $wgOut->addHTML( wfMsg( "searchdisabled", $search, $wgInputEncoding ) );
- } else {
if ( 0 == wfNumRows( $res2 ) ) {
$wgOut->addHTML( "<h2>" . wfMsg( "notextmatches" ) .
"</h2>\n" );
wfFreeResult( $res2 );
$wgOut->addHTML( "</ol>\n" );
}
+ if ( ! $foundsome ) {
+ $wgOut->addHTML( "<p>" . wfMsg( "nonefound" ) . "\n" );
+ }
+ $wgOut->addHTML( "<p>{$sl}\n" );
+ $wgOut->addHTML( $powersearch );
}
- if ( ! $foundsome ) {
- $wgOut->addHTML( "<p>" . wfMsg( "nonefound" ) . "\n" );
- }
- $wgOut->addHTML( "<p>{$sl}\n" );
- $wgOut->addHTML( $powersearch );
}
function legalSearchChars()
function parseQuery4()
{
- # FIXME: not ready yet! Do not use.
-
global $wgLang;
$lc = SearchEngine::legalSearchChars();
- #$q = preg_replace( "/([+-]?)([$lc]+)/e",
- # "\"$1\" . \$wgLang->stripForSearch(\"$2\")",
- # $this->mUsertext );
+ $searchon = "";
+ $this->mSearchterms = array();
+
+ # FIXME: This doesn't handle parenthetical expressions.
+ if( preg_match_all( '/([-+<>~]?)(([' . $lc . ']+)(\*?)|"[^"]*")/',
+ $this->mUsertext, $m, PREG_SET_ORDER ) ) {
+ foreach( $m as $terms ) {
+ if( $searchon !== "" ) $searchon .= " ";
+ if( $this->mStrictMatching && ($terms[1] == "") ) {
+ $terms[1] = "+";
+ }
+ $searchon .= $terms[1] . $wgLang->stripForSearch( $terms[2] );
+ if( $terms[3] ) {
+ $regexp = preg_quote( $terms[3] );
+ if( $terms[4] ) $regexp .= "[0-9A-Za-z_]+";
+ } else {
+ $regexp = preg_quote( str_replace( '"', '', $terms[2] ) );
+ }
+ $this->mSearchterms[] = $regexp;
+ }
+ wfDebug( "Would search with '$searchon'\n" );
+ wfDebug( "Match with /\b" . implode( '\b|\b', $this->mSearchterms ) . "\b/\n" );
+ } else {
+ wfDebug( "Can't understand search query '$this->mUsertext'\n" );
+ }
- $q = $this->mUsertext;
- $qq = wfStrencode( $wgLang->stripForSearch( $q ) );
- $this->mSearchterms = preg_split( '/\s+/', $q );
- $this->mTitlecond = " MATCH(si_title) AGAINST('$qq' IN BOOLEAN MODE)";
- $this->mTextcond = " (MATCH(si_text) AGAINST('$qq' IN BOOLEAN MODE) AND cur_is_redirect=0)";
+ $searchon = wfStrencode( $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)";
}
function showHit( $row )
if ( "" == $contextchars ) { $contextchars = 50; }
$link = $sk->makeKnownLink( $t, "" );
- $size = str_replace( "$1", strlen( $row->cur_text ), WfMsg( "nbytes" ) );
+ $size = wfMsg( "nbytes", strlen( $row->cur_text ) );
$wgOut->addHTML( "<li>{$link} ({$size})" );
$lines = explode( "\n", $row->cur_text );
function goResult()
{
- global $wgOut;
+ global $wgOut, $wgDisableTextSearch;
$fname = "SearchEngine::goResult";
$search = $_REQUEST['search'];
- # First try to go to page as entered
+ # First 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;
+ }
+
if ( 0 != $t->getArticleID() ) {
$wgOut->redirect( wfLocalUrl( $t->getPrefixedURL() ) );
return;
# Try a near match
#
- $this->parseQuery();
- $sql = "SELECT cur_id,cur_title,cur_namespace,si_page FROM cur,searchindex " .
- "WHERE cur_id=si_page AND {$this->mTitlecond} ORDER BY cur_namespace LIMIT 1";
-
- if ( "" != $this->mTitlecond ) {
- $res = wfQuery( $sql, DB_READ, $fname );
- }
- if ( isset( $res ) && 0 != wfNumRows( $res ) ) {
- $s = wfFetchObject( $res );
-
- $t = Title::makeTitle( $s->cur_namespace, $s->cur_title );
- $wgOut->redirect( wfLocalUrl( $t->getPrefixedURL() ) );
- return;
+ if( !$wgDisableTextSearch ) {
+ $this->parseQuery();
+ $sql = "SELECT cur_id,cur_title,cur_namespace,si_page FROM cur,searchindex " .
+ "WHERE cur_id=si_page AND {$this->mTitlecond} ORDER BY cur_namespace LIMIT 1";
+
+ if ( "" != $this->mTitlecond ) {
+ $res = wfQuery( $sql, DB_READ, $fname );
+ }
+ if ( isset( $res ) && 0 != wfNumRows( $res ) ) {
+ $s = wfFetchObject( $res );
+
+ $t = Title::makeTitle( $s->cur_namespace, $s->cur_title );
+ $wgOut->redirect( wfLocalUrl( $t->getPrefixedURL() ) );
+ return;
+ }
}
$wgOut->addHTML( wfMsg("nogomatch",
htmlspecialchars( wfLocalUrl( ucfirst($this->mUsertext), "action=edit") ) )
}
}
+?>