154 lines
4.6 KiB
PHP
154 lines
4.6 KiB
PHP
<?php
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if( !defined( 'MEDIAWIKI' ) )
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die( -1 );
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require_once('WebRequest.php');
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/**
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* Function converts an Javascript escaped string back into a string with
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* specified charset (default is UTF-8).
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* Modified function from http://pure-essence.net/stuff/code/utf8RawUrlDecode.phps
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*
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* @param $source String escaped with Javascript's escape() function
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* @param $iconv_to String destination character set will be used as second paramether in the iconv function. Default is UTF-8.
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* @return string
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*/
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function js_unescape($source, $iconv_to = 'UTF-8') {
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$decodedStr = '';
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$pos = 0;
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$len = strlen ($source);
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while ($pos < $len) {
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$charAt = substr ($source, $pos, 1);
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if ($charAt == '%') {
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$pos++;
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$charAt = substr ($source, $pos, 1);
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if ($charAt == 'u') {
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// we got a unicode character
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$pos++;
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$unicodeHexVal = substr ($source, $pos, 4);
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$unicode = hexdec ($unicodeHexVal);
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$decodedStr .= code2utf($unicode);
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$pos += 4;
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}
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else {
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// we have an escaped ascii character
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$hexVal = substr ($source, $pos, 2);
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$decodedStr .= chr (hexdec ($hexVal));
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$pos += 2;
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}
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}
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else {
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$decodedStr .= $charAt;
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$pos++;
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}
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}
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if ($iconv_to != "UTF-8") {
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$decodedStr = iconv("UTF-8", $iconv_to, $decodedStr);
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}
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return $decodedStr;
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}
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/**
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* Function coverts number of utf char into that character.
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* Function taken from: http://sk2.php.net/manual/en/function.utf8-encode.php#49336
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*
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* @param $num Integer
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* @return utf8char
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*/
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function code2utf($num){
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if ( $num<128 )
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return chr($num);
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if ( $num<2048 )
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return chr(($num>>6)+192).chr(($num&63)+128);
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if ( $num<65536 )
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return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
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if ( $num<2097152 )
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return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128) .chr(($num&63)+128);
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return '';
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}
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class AjaxCachePolicy {
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var $policy;
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function AjaxCachePolicy( $policy = null ) {
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$this->policy = $policy;
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}
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function setPolicy( $policy ) {
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$this->policy = $policy;
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}
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function writeHeader() {
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header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
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if ( is_null( $this->policy ) ) {
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// Bust cache in the head
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header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
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// always modified
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header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
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header ("Pragma: no-cache"); // HTTP/1.0
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} else {
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header ("Expires: " . gmdate( "D, d M Y H:i:s", time() + $this->policy ) . " GMT");
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header ("Cache-Control: s-max-age={$this->policy},public,max-age={$this->policy}");
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}
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}
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}
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function wfSajaxSearch( $term ) {
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global $wgContLang, $wgUser, $wgRequest, $wgAjaxCachePolicy;
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$limit = 16;
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$l = new Linker;
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$term = str_replace( ' ', '_', $wgContLang->ucfirst(
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$wgContLang->checkTitleEncoding( $wgContLang->recodeInput( js_unescape( $term ) ) )
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) );
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if ( strlen( str_replace( '_', '', $term ) )<3 )
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return;
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$wgAjaxCachePolicy->setPolicy( 30*60 );
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$db =& wfGetDB( DB_SLAVE );
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$res = $db->select( 'page', 'page_title',
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array( 'page_namespace' => 0,
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"page_title LIKE '". $db->strencode( $term) ."%'" ),
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"wfSajaxSearch",
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array( 'LIMIT' => $limit+1 )
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);
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$r = "";
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$i=0;
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while ( ( $row = $db->fetchObject( $res ) ) && ( ++$i <= $limit ) ) {
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$nt = Title::newFromDBkey( $row->page_title );
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$r .= '<li>' . $l->makeKnownLinkObj( $nt ) . "</li>\n";
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}
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if ( $i > $limit ) {
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$more = '<i>' . $l->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
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wfMsg('moredotdotdot'),
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"namespace=0&from=" . wfUrlEncode ( $term ) ) .
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'</i>';
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} else {
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$more = '';
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}
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$term = htmlspecialchars( $term );
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return '<div style="float:right; border:solid 1px black;background:gainsboro;padding:2px;"><a onclick="Searching_Hide_Results();">'
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. wfMsg( 'hideresults' ) . '</a></div>'
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. '<h1 class="firstHeading">'.wfMsg('search')
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. '</h1><div id="contentSub">'.wfMsg('searchquery', $term) . '</div><ul><li>'
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. $l->makeKnownLink( $wgContLang->specialPage( 'Search' ),
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wfMsg( 'searchcontaining', $term ),
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"search=$term&fulltext=Search" )
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. '</li><li>' . $l->makeKnownLink( $wgContLang->specialPage( 'Search' ),
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wfMsg( 'searchnamed', $term ) ,
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"search=$term&go=Go" )
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. "</li></ul><h2>" . wfMsg( 'articletitles', $term ) . "</h2>"
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. '<ul>' .$r .'</ul>'.$more;
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}
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?>
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