From 183851b06bd6c52f3cae5375f433da720d410447 Mon Sep 17 00:00:00 2001
From: Pierre Schmitz <pierre@archlinux.de>
Date: Wed, 11 Oct 2006 18:12:39 +0000
Subject: MediaWiki 1.7.1 wiederhergestellt

---
 includes/AjaxFunctions.php | 157 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 includes/AjaxFunctions.php

(limited to 'includes/AjaxFunctions.php')

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;
+}
+
+?>
-- 
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