opensearch_desc.php

   1 <?php
   2
   3 /**
   4  * Generate an OpenSearch description file
   5  */
   6
   7 require_once( dirname(__FILE__) . '/includes/WebStart.php' );
   8
   9 if( $wgRequest->getVal( 'ctype' ) == 'application/xml' ) {
  10         // Makes testing tweaks about a billion times easier
  11         $ctype = 'application/xml';
  12 } else {
  13         $ctype = 'application/opensearchdescription+xml';
  14 }
  15
  16 $response = $wgRequest->response();
  17 $response->header( "Content-type: $ctype" );
  18
  19 // Set an Expires header so that squid can cache it for a short time
  20 // Short enough so that the sysadmin barely notices when $wgSitename is changed
  21 $expiryTime = 600; # 10 minutes
  22 $response->header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + $expiryTime ) . ' GMT' );
  23 $response->header( 'Cache-control: max-age=600' );
  24
  25 print '<?xml version="1.0"?>';
  26 print Xml::openElement( 'OpenSearchDescription',
  27         array(
  28                 'xmlns' => 'http://a9.com/-/spec/opensearch/1.1/',
  29                 'xmlns:moz' => 'http://www.mozilla.org/2006/browser/search/' ) );
  30
  31 // The spec says the ShortName must be no longer than 16 characters,
  32 // but 16 is *realllly* short. In practice, browsers don't appear to care
  33 // when we give them a longer string, so we're no longer attempting to trim.
  34 //
  35 // Note: ShortName and the <link title=""> need to match; they are used as
  36 // a key for identifying if the search engine has been added already, *and*
  37 // as the display name presented to the end-user.
  38 //
  39 // Behavior seems about the same between Firefox and IE 7/8 here.
  40 // 'Description' doesn't appear to be used by either.
  41 $fullName = wfMsgForContent( 'opensearch-desc' );
  42 print Xml::element( 'ShortName', null, $fullName );
  43 print Xml::element( 'Description', null, $fullName );
  44
  45 // By default we'll use the site favicon.
  46 // Double-check if IE supports this properly?
  47 print Xml::element( 'Image',
  48         array(
  49                 'height' => 16,
  50                 'width' => 16,
  51                 'type' => 'image/x-icon' ),
  52         wfExpandUrl( $wgFavicon ) );
  53
  54 $urls = array();
  55
  56 // General search template. Given an input term, this should bring up
  57 // search results or a specific found page.
  58 // At least Firefox and IE 7 support this.
  59 $searchPage = SpecialPage::getTitleFor( 'Search' );
  60 $urls[] = array(
  61         'type' => 'text/html',
  62         'method' => 'get',
  63         'template' => $searchPage->getFullURL( 'search={searchTerms}' ) );
  64
  65 if( $wgEnableAPI ) {
  66         // JSON interface for search suggestions.
  67         // Supported in Firefox 2 and later.
  68         $urls[] = array(
  69                 'type' => 'application/x-suggestions+json',
  70                 'method' => 'get',
  71                 'template' => SearchEngine::getOpenSearchTemplate() );
  72 }
  73
  74 // Allow hooks to override the suggestion URL settings in a more
  75 // general way than overriding the whole search engine...
  76 wfRunHooks( 'OpenSearchUrls', array( &$urls ) );
  77
  78 foreach( $urls as $attribs ) {
  79         print Xml::element( 'Url', $attribs );
  80 }
  81
  82 // And for good measure, add a link to the straight search form.
  83 // This is a custom format extension for Firefox, which otherwise
  84 // sends you to the domain root if you hit "enter" with an empty
  85 // search box.
  86 print Xml::element( 'moz:SearchForm', null,
  87         $searchPage->getFullUrl() );
  88
  89 print '</OpenSearchDescription>';