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authorPierre Schmitz <pierre@archlinux.de>2006-10-11 18:12:39 +0000
committerPierre Schmitz <pierre@archlinux.de>2006-10-11 18:12:39 +0000
commit183851b06bd6c52f3cae5375f433da720d410447 (patch)
treea477257decbf3360127f6739c2f9d0ec57a03d39 /includes/AjaxFunctions.php
MediaWiki 1.7.1 wiederhergestellt
Diffstat (limited to 'includes/AjaxFunctions.php')
-rw-r--r--includes/AjaxFunctions.php157
1 files changed, 157 insertions, 0 deletions
diff --git a/includes/AjaxFunctions.php b/includes/AjaxFunctions.php
new file mode 100644
index 00000000..4387a607
--- /dev/null
+++ b/includes/AjaxFunctions.php
@@ -0,0 +1,157 @@
+<?php
+
+if( !defined( 'MEDIAWIKI' ) )
+ die( 1 );
+
+require_once('WebRequest.php');
+
+/**
+ * Function converts an Javascript escaped string back into a string with
+ * specified charset (default is UTF-8).
+ * Modified function from http://pure-essence.net/stuff/code/utf8RawUrlDecode.phps
+ *
+ * @param $source String escaped with Javascript's escape() function
+ * @param $iconv_to String destination character set will be used as second paramether in the iconv function. Default is UTF-8.
+ * @return string
+ */
+function js_unescape($source, $iconv_to = 'UTF-8') {
+ $decodedStr = '';
+ $pos = 0;
+ $len = strlen ($source);
+ while ($pos < $len) {
+ $charAt = substr ($source, $pos, 1);
+ if ($charAt == '%') {
+ $pos++;
+ $charAt = substr ($source, $pos, 1);
+ if ($charAt == 'u') {
+ // we got a unicode character
+ $pos++;
+ $unicodeHexVal = substr ($source, $pos, 4);
+ $unicode = hexdec ($unicodeHexVal);
+ $decodedStr .= code2utf($unicode);
+ $pos += 4;
+ }
+ else {
+ // we have an escaped ascii character
+ $hexVal = substr ($source, $pos, 2);
+ $decodedStr .= chr (hexdec ($hexVal));
+ $pos += 2;
+ }
+ }
+ else {
+ $decodedStr .= $charAt;
+ $pos++;
+ }
+ }
+
+ if ($iconv_to != "UTF-8") {
+ $decodedStr = iconv("UTF-8", $iconv_to, $decodedStr);
+ }
+
+ return $decodedStr;
+}
+
+/**
+ * Function coverts number of utf char into that character.
+ * Function taken from: http://sk2.php.net/manual/en/function.utf8-encode.php#49336
+ *
+ * @param $num Integer
+ * @return utf8char
+ */
+function code2utf($num){
+ if ( $num<128 )
+ return chr($num);
+ if ( $num<2048 )
+ return chr(($num>>6)+192).chr(($num&63)+128);
+ if ( $num<65536 )
+ return chr(($num>>12)+224).chr((($num>>6)&63)+128).chr(($num&63)+128);
+ if ( $num<2097152 )
+ return chr(($num>>18)+240).chr((($num>>12)&63)+128).chr((($num>>6)&63)+128) .chr(($num&63)+128);
+ return '';
+}
+
+class AjaxCachePolicy {
+ var $policy;
+
+ function AjaxCachePolicy( $policy = null ) {
+ $this->policy = $policy;
+ }
+
+ function setPolicy( $policy ) {
+ $this->policy = $policy;
+ }
+
+ function writeHeader() {
+ header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
+ if ( is_null( $this->policy ) ) {
+ // Bust cache in the head
+ header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
+ // always modified
+ header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
+ header ("Pragma: no-cache"); // HTTP/1.0
+ } else {
+ header ("Expires: " . gmdate( "D, d M Y H:i:s", time() + $this->policy ) . " GMT");
+ header ("Cache-Control: s-max-age={$this->policy},public,max-age={$this->policy}");
+ }
+ }
+}
+
+
+function wfSajaxSearch( $term ) {
+ global $wgContLang, $wgAjaxCachePolicy, $wgOut;
+ $limit = 16;
+
+ $l = new Linker;
+
+ $term = str_replace( ' ', '_', $wgContLang->ucfirst(
+ $wgContLang->checkTitleEncoding( $wgContLang->recodeInput( js_unescape( $term ) ) )
+ ) );
+
+ if ( strlen( str_replace( '_', '', $term ) )<3 )
+ return;
+
+ $wgAjaxCachePolicy->setPolicy( 30*60 );
+
+ $db =& wfGetDB( DB_SLAVE );
+ $res = $db->select( 'page', 'page_title',
+ array( 'page_namespace' => 0,
+ "page_title LIKE '". $db->strencode( $term) ."%'" ),
+ "wfSajaxSearch",
+ array( 'LIMIT' => $limit+1 )
+ );
+
+ $r = "";
+
+ $i=0;
+ while ( ( $row = $db->fetchObject( $res ) ) && ( ++$i <= $limit ) ) {
+ $nt = Title::newFromDBkey( $row->page_title );
+ $r .= '<li>' . $l->makeKnownLinkObj( $nt ) . "</li>\n";
+ }
+ if ( $i > $limit ) {
+ $more = '<i>' . $l->makeKnownLink( $wgContLang->specialPage( "Allpages" ),
+ wfMsg('moredotdotdot'),
+ "namespace=0&from=" . wfUrlEncode ( $term ) ) .
+ '</i>';
+ } else {
+ $more = '';
+ }
+
+ $subtitlemsg = ( Title::newFromText($term) ? 'searchsubtitle' : 'searchsubtitleinvalid' );
+ $subtitle = $wgOut->parse( wfMsg( $subtitlemsg, wfEscapeWikiText($term) ) );
+
+ $term = htmlspecialchars( $term );
+ return '<div style="float:right; border:solid 1px black;background:gainsboro;padding:2px;"><a onclick="Searching_Hide_Results();">'
+ . wfMsg( 'hideresults' ) . '</a></div>'
+ . '<h1 class="firstHeading">'.wfMsg('search')
+ . '</h1><div id="contentSub">'. $subtitle . '</div><ul><li>'
+ . $l->makeKnownLink( $wgContLang->specialPage( 'Search' ),
+ wfMsg( 'searchcontaining', $term ),
+ "search=$term&fulltext=Search" )
+ . '</li><li>' . $l->makeKnownLink( $wgContLang->specialPage( 'Search' ),
+ wfMsg( 'searchnamed', $term ) ,
+ "search=$term&go=Go" )
+ . "</li></ul><h2>" . wfMsg( 'articletitles', $term ) . "</h2>"
+ . '<ul>' .$r .'</ul>'.$more;
+}
+
+?>