http://www.mediawiki.org/wiki/Special:Code/MediaWiki/72177
Revision: 72177
Author: kaldari
Date: 2010-09-01 23:18:21 +0000 (Wed, 01 Sep 2010)
Log Message:
-----------
initial version of BannerLoader
Modified Paths:
--------------
trunk/extensions/CentralNotice/CentralNotice.php
Added Paths:
-----------
trunk/extensions/CentralNotice/BannerLoader.php
Added: trunk/extensions/CentralNotice/BannerLoader.php
===================================================================
--- trunk/extensions/CentralNotice/BannerLoader.php
(rev 0)
+++ trunk/extensions/CentralNotice/BannerLoader.php 2010-09-01 23:18:21 UTC
(rev 72177)
@@ -0,0 +1,163 @@
+<?php
+
+/**
+ * Generates content for static HTML files
+ */
+class BannerLoader extends UnlistedSpecialPage {
+ var $project = 'wikipedia';
+ var $language = 'en';
+ protected $sharedMaxAge = 22; // Cache for ? hours on the server side
+ protected $maxAge = 0; // No client-side banner caching so we get all
impressions
+ protected $contentType = 'text/html';
+
+ function __construct() {
+ // Register special page
+ parent::__construct( "BannerLoader" );
+ }
+
+ function execute( $par ) {
+ global $wgOut, $wgRequest;
+
+ $wgOut->disable();
+ $this->sendHeaders();
+
+ // If a language is specified in the query string, use it
+ if ( $wgRequest->getText( 'language' ) ) {
+ $this->language = htmlspecialchars(
$wgRequest->getText( 'language' ) );
+ }
+
+ if ( $wgRequest->getText( 'banner') ) {
+ $bannerName = htmlspecialchars( $wgRequest->getText(
'banner' ) );
+ $content = $this->getHtmlNotice( $bannerName );
+ if ( strlen( $content ) == 0 ) {
+ // Hack for IE/Mac 0-length keepalive problem,
see RawPage.php
+ echo "/* Empty */";
+ } else {
+ echo $content;
+ }
+ } else {
+ echo "/* No banner specified */";
+ }
+ }
+
+ /**
+ * Generate the HTTP response headers for the banner file
+ */
+ function sendHeaders() {
+ header( "Content-type: $this->contentType; charset=utf-8" );
+ header( "Cache-Control: public, s-maxage=$this->sharedMaxAge,
max-age=$this->maxAge" );
+ }
+
+ /**
+ * Generate the HTML for the requested banner
+ */
+ function getHtmlNotice( $bannerName ) {
+ // Make sure the banner exists
+ if ( SpecialNoticeTemplate::templateExists( $bannerName ) ) {
+ $this->bannerName = $bannerName;
+ return preg_replace_callback(
+ '/{{{(.*?)}}}/',
+ array( $this, 'getNoticeField' ),
+ $this->getNoticeTemplate()
+ );
+ }
+ }
+
+ function getNoticeTemplate() {
+ return $this->getMessage(
"centralnotice-template-{$this->bannerName}" );
+ }
+
+ function getNoticeField( $matches ) {
+ $field = $matches[1];
+ $params = array();
+ if ( $field == 'amount' ) {
+ $params = array( $this->formatNum(
$this->getDonationAmount() ) );
+ }
+ $message = "centralnotice-{$this->bannerName}-$field";
+ $source = $this->getMessage( $message, $params );
+ return $source;
+ }
+
+ private function formatNum( $num ) {
+ $num = sprintf( "%.1f", $num / 1e6 );
+ if ( substr( $num, - 2 ) == '.0' ) {
+ $num = substr( $num, 0, - 2 );
+ }
+ $lang = Language::factory( $this->language );
+ return $lang->formatNum( $num );
+ }
+
+ private function getMessage( $msg, $params = array() ) {
+ // A god-damned dirty hack! :D
+ $old = array();
+ $old['wgSitename'] = $GLOBALS['wgSitename'];
+ $old['wgLang'] = $GLOBALS['wgLang'];
+
+ $GLOBALS['wgSitename'] = $this->projectName();
+ $GLOBALS['wgLang'] = Language::factory( $this->language ); //
hack for {{int:...}}
+
+ $options = array(
+ 'language' => $this->language,
+ 'parsemag',
+ );
+ array_unshift( $params, $options );
+ array_unshift( $params, $msg );
+ $out = call_user_func_array( 'wfMsgExt', $params );
+
+ // Restore globals
+ $GLOBALS['wgSitename'] = $old['wgSitename'];
+ $GLOBALS['wgLang'] = $old['wgLang'];
+
+ return $out;
+ }
+
+ private function projectName() {
+ global $wgConf;
+
+ $wgConf->loadFullData();
+
+ // Special cases for commons and meta who have no lang
+ if ( $this->project == 'commons' )
+ return "Commons";
+ else if ( $this->project == 'meta' )
+ return "Wikimedia";
+
+ // Guess dbname since we don't have it atm
+ $dbname = $this->language .
+ ( ( $this->project == 'wikipedia' ) ? "wiki" :
$this->project );
+ $name = $wgConf->get( 'wgSitename', $dbname, $this->project,
+ array( 'lang' => $this->language, 'site' =>
$this->project ) );
+
+ if ( $name ) {
+ return $name;
+ } else {
+ global $wgLang;
+ return $wgLang->ucfirst( $this->project );
+ }
+ }
+
+ /**
+ * Pull the current amount raised during a fundraiser
+ */
+ private function getDonationAmount() {
+ global $wgNoticeCounterSource, $wgMemc;
+ // Pull short-cached amount
+ $count = intval( $wgMemc->get( 'centralnotice:counter' ) );
+ if ( !$count ) {
+ // Pull from dynamic counter
+ $count = intval( @file_get_contents(
$wgNoticeCounterSource ) );
+ if ( !$count ) {
+ // Pull long-cached amount
+ $count = intval( $wgMemc->get(
'centralnotice:counter:fallback' ) );
+ if ( !$count ) {
+ // Return hard-coded amount if all else
fails
+ return 100; // Update as needed during
fundraiser
+ }
+ }
+ $wgMemc->set( 'centralnotice:counter', $count, 60 ); //
Expire in 60 seconds
+ $wgMemc->set( 'centralnotice:counter:fallback', $count
); // No expiration
+ }
+ return $count;
+ }
+
+}
Modified: trunk/extensions/CentralNotice/CentralNotice.php
===================================================================
--- trunk/extensions/CentralNotice/CentralNotice.php 2010-09-01 23:14:06 UTC
(rev 72176)
+++ trunk/extensions/CentralNotice/CentralNotice.php 2010-09-01 23:18:21 UTC
(rev 72177)
@@ -138,6 +138,9 @@
$wgSpecialPages['CentralNotice'] = 'CentralNotice';
$wgSpecialPageGroups['CentralNotice'] = 'wiki'; // Wiki data
and tools"
$wgAutoloadClasses['CentralNotice'] = $dir .
'SpecialCentralNotice.php';
+
+ $wgSpecialPages['BannerLoader'] = 'BannerLoader';
+ $wgAutoloadClasses['BannerLoader'] = $dir . 'BannerLoader.php';
$wgSpecialPages['NoticeText'] = 'SpecialNoticeText';
$wgAutoloadClasses['SpecialNoticeText'] = $dir .
'SpecialNoticeText.php';
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