+ /**
+ * If the namespace isn't listed on the priority list return the
+ * default priority for the namespace, varies depending on whether it's
+ * a talkpage or not.
+ *
+ * @param $namespace Integer: the namespace to get the priority for
+ * @return String
+ */
+ function guessPriority( $namespace ) {
+ return MWNamespace::isSubject( $namespace ) ? $this->priorities[self::GS_MAIN] : $this->priorities[self::GS_TALK];
+ }
+
+ /**
+ * Return a database resolution of all the pages in a given namespace
+ *
+ * @param $namespace Integer: limit the query to this namespace
+ * @return Resource
+ */
+ function getPageRes( $namespace ) {
+ return $this->dbr->select( 'page',
+ array(
+ 'page_namespace',
+ 'page_title',
+ 'page_touched',
+ ),
+ array( 'page_namespace' => $namespace ),
+ __METHOD__
+ );
+ }
+
+ /**
+ * Main loop
+ */
+ public function main() {
+ global $wgContLang;
+
+ fwrite( $this->findex, $this->openIndex() );
+
+ foreach ( $this->namespaces as $namespace ) {
+ $res = $this->getPageRes( $namespace );
+ $this->file = false;
+ $this->generateLimit( $namespace );
+ $length = $this->limit[0];
+ $i = $smcount = 0;
+
+ $fns = $wgContLang->getFormattedNsText( $namespace );
+ $this->output( "$namespace ($fns)\n" );
+ foreach ( $res as $row ) {
+ if ( $i++ === 0 || $i === $this->url_limit + 1 || $length + $this->limit[1] + $this->limit[2] > $this->size_limit ) {
+ if ( $this->file !== false ) {
+ $this->write( $this->file, $this->closeFile() );
+ $this->close( $this->file );
+ }
+ $filename = $this->sitemapFilename( $namespace, $smcount++ );
+ $this->file = $this->open( $this->fspath . $filename, 'wb' );
+ $this->write( $this->file, $this->openFile() );
+ fwrite( $this->findex, $this->indexEntry( $filename ) );
+ $this->output( "\t$this->fspath$filename\n" );
+ $length = $this->limit[0];
+ $i = 1;
+ }
+ $title = Title::makeTitle( $row->page_namespace, $row->page_title );
+ $date = wfTimestamp( TS_ISO_8601, $row->page_touched );
+ $entry = $this->fileEntry( $title->getCanonicalURL(), $date, $this->priority( $namespace ) );
+ $length += strlen( $entry );
+ $this->write( $this->file, $entry );
+ // generate pages for language variants
+ if ( $wgContLang->hasVariants() ) {
+ $variants = $wgContLang->getVariants();
+ foreach ( $variants as $vCode ) {
+ if ( $vCode == $wgContLang->getCode() ) continue; // we don't want default variant
+ $entry = $this->fileEntry( $title->getCanonicalURL( '', $vCode ), $date, $this->priority( $namespace ) );
+ $length += strlen( $entry );
+ $this->write( $this->file, $entry );
+ }
+ }
+ }
+ if ( $this->file ) {
+ $this->write( $this->file, $this->closeFile() );
+ $this->close( $this->file );
+ }
+ }
+ fwrite( $this->findex, $this->closeIndex() );
+ fclose( $this->findex );
+ }
+
+ /**
+ * gzopen() / fopen() wrapper
+ *
+ * @return Resource
+ */
+ function open( $file, $flags ) {
+ $resource = $this->compress ? gzopen( $file, $flags ) : fopen( $file, $flags );
+ if( $resource === false ) {
+ wfDebugDieBacktrace( __METHOD__ . " error opening file $file with flags $flags. Check permissions?" );
+ }
+ return $resource;
+ }
+
+ /**
+ * gzwrite() / fwrite() wrapper
+ */
+ function write( &$handle, $str ) {
+ if( $handle === true || $handle === false ) {
+ wfDebugDieBacktrace( __METHOD__ . " was passed a boolean as a file handle.\n" );
+ }
+ if ( $this->compress )
+ gzwrite( $handle, $str );
+ else
+ fwrite( $handle, $str );
+ }
+
+ /**
+ * gzclose() / fclose() wrapper
+ */
+ function close( &$handle ) {
+ if ( $this->compress )
+ gzclose( $handle );
+ else
+ fclose( $handle );
+ }
+
+ /**
+ * Get a sitemap filename
+ *
+ * @param $namespace Integer: the namespace
+ * @param $count Integer: the count
+ * @return String
+ */
+ function sitemapFilename( $namespace, $count ) {
+ $ext = $this->compress ? '.gz' : '';
+ return "sitemap-{$this->identifier}-NS_$namespace-$count.xml$ext";
+ }
+
+ /**
+ * Return the XML required to open an XML file
+ *
+ * @return string
+ */
+ function xmlHead() {
+ return '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
+ }
+
+ /**
+ * Return the XML schema being used
+ *
+ * @return String
+ */
+ function xmlSchema() {
+ return 'http://www.sitemaps.org/schemas/sitemap/0.9';
+ }
+
+ /**
+ * Return the XML required to open a sitemap index file
+ *
+ * @return String
+ */
+ function openIndex() {
+ return $this->xmlHead() . '<sitemapindex xmlns="' . $this->xmlSchema() . '">' . "\n";
+ }
+
+ /**
+ * Return the XML for a single sitemap indexfile entry
+ *
+ * @param $filename String: the filename of the sitemap file
+ * @return String
+ */
+ function indexEntry( $filename ) {
+ return
+ "\t<sitemap>\n" .
+ "\t\t<loc>{$this->urlpath}$filename</loc>\n" .
+ "\t\t<lastmod>{$this->timestamp}</lastmod>\n" .
+ "\t</sitemap>\n";
+ }
+
+ /**
+ * Return the XML required to close a sitemap index file
+ *
+ * @return String
+ */
+ function closeIndex() {
+ return "</sitemapindex>\n";
+ }
+
+ /**
+ * Return the XML required to open a sitemap file
+ *
+ * @return String
+ */
+ function openFile() {
+ return $this->xmlHead() . '<urlset xmlns="' . $this->xmlSchema() . '">' . "\n";
+ }
+
+ /**
+ * Return the XML for a single sitemap entry
+ *
+ * @param $url String: an RFC 2396 compliant URL
+ * @param $date String: a ISO 8601 date
+ * @param $priority String: a priority indicator, 0.0 - 1.0 inclusive with a 0.1 stepsize
+ * @return String
+ */
+ function fileEntry( $url, $date, $priority ) {
+ return
+ "\t<url>\n" .
+ "\t\t<loc>$url</loc>\n" .
+ "\t\t<lastmod>$date</lastmod>\n" .
+ "\t\t<priority>$priority</priority>\n" .
+ "\t</url>\n";
+ }
+
+ /**
+ * Return the XML required to close sitemap file
+ *
+ * @return String
+ */
+ function closeFile() {
+ return "</urlset>\n";
+ }
+
+ /**
+ * Populate $this->limit
+ */
+ function generateLimit( $namespace ) {
+ // bug 17961: make a title with the longest possible URL in this namespace
+ $title = Title::makeTitle( $namespace, str_repeat( "\xf0\xa8\xae\x81", 63 ) . "\xe5\x96\x83" );
+
+ $this->limit = array(
+ strlen( $this->openFile() ),
+ strlen( $this->fileEntry( $title->getCanonicalURL(), wfTimestamp( TS_ISO_8601, wfTimestamp() ), $this->priority( $namespace ) ) ),
+ strlen( $this->closeFile() )
+ );
+ }
+}