--- /dev/null
+<?php
+
+use Wikimedia\Rdbms\LoadBalancer;
+
+/**
+ * Represents the site configuration of a wiki.
+ * Holds a list of sites (ie SiteList), stored in the database.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @since 1.25
+ *
+ * @file
+ * @ingroup Site
+ *
+ * @license GNU GPL v2+
+ * @author Jeroen De Dauw < jeroendedauw@gmail.com >
+ * @author Daniel Kinzler
+ */
+class DBSiteStore implements SiteStore {
+
+ /**
+ * @var SiteList|null
+ */
+ protected $sites = null;
+
+ /**
+ * @var LoadBalancer
+ */
+ private $dbLoadBalancer;
+
+ /**
+ * @since 1.27
+ *
+ * @todo: inject some kind of connection manager that is aware of the target wiki,
+ * instead of injecting a LoadBalancer.
+ *
+ * @param LoadBalancer $dbLoadBalancer
+ */
+ public function __construct( LoadBalancer $dbLoadBalancer ) {
+ $this->dbLoadBalancer = $dbLoadBalancer;
+ }
+
+ /**
+ * @see SiteStore::getSites
+ *
+ * @since 1.25
+ *
+ * @return SiteList
+ */
+ public function getSites() {
+ $this->loadSites();
+
+ return $this->sites;
+ }
+
+ /**
+ * Fetches the site from the database and loads them into the sites field.
+ *
+ * @since 1.25
+ */
+ protected function loadSites() {
+ $this->sites = new SiteList();
+
+ $dbr = $this->dbLoadBalancer->getConnection( DB_REPLICA );
+
+ $res = $dbr->select(
+ 'sites',
+ [
+ 'site_id',
+ 'site_global_key',
+ 'site_type',
+ 'site_group',
+ 'site_source',
+ 'site_language',
+ 'site_protocol',
+ 'site_domain',
+ 'site_data',
+ 'site_forward',
+ 'site_config',
+ ],
+ '',
+ __METHOD__,
+ [ 'ORDER BY' => 'site_global_key' ]
+ );
+
+ foreach ( $res as $row ) {
+ $site = Site::newForType( $row->site_type );
+ $site->setGlobalId( $row->site_global_key );
+ $site->setInternalId( (int)$row->site_id );
+ $site->setForward( (bool)$row->site_forward );
+ $site->setGroup( $row->site_group );
+ $site->setLanguageCode( $row->site_language === ''
+ ? null
+ : $row->site_language
+ );
+ $site->setSource( $row->site_source );
+ $site->setExtraData( unserialize( $row->site_data ) );
+ $site->setExtraConfig( unserialize( $row->site_config ) );
+ $this->sites[] = $site;
+ }
+
+ // Batch load the local site identifiers.
+ $ids = $dbr->select(
+ 'site_identifiers',
+ [
+ 'si_site',
+ 'si_type',
+ 'si_key',
+ ],
+ [],
+ __METHOD__
+ );
+
+ foreach ( $ids as $id ) {
+ if ( $this->sites->hasInternalId( $id->si_site ) ) {
+ $site = $this->sites->getSiteByInternalId( $id->si_site );
+ $site->addLocalId( $id->si_type, $id->si_key );
+ $this->sites->setSite( $site );
+ }
+ }
+ }
+
+ /**
+ * @see SiteStore::getSite
+ *
+ * @since 1.25
+ *
+ * @param string $globalId
+ *
+ * @return Site|null
+ */
+ public function getSite( $globalId ) {
+ if ( $this->sites === null ) {
+ $this->sites = $this->getSites();
+ }
+
+ return $this->sites->hasSite( $globalId ) ? $this->sites->getSite( $globalId ) : null;
+ }
+
+ /**
+ * @see SiteStore::saveSite
+ *
+ * @since 1.25
+ *
+ * @param Site $site
+ *
+ * @return bool Success indicator
+ */
+ public function saveSite( Site $site ) {
+ return $this->saveSites( [ $site ] );
+ }
+
+ /**
+ * @see SiteStore::saveSites
+ *
+ * @since 1.25
+ *
+ * @param Site[] $sites
+ *
+ * @return bool Success indicator
+ */
+ public function saveSites( array $sites ) {
+ if ( empty( $sites ) ) {
+ return true;
+ }
+
+ $dbw = $this->dbLoadBalancer->getConnection( DB_MASTER );
+
+ $dbw->startAtomic( __METHOD__ );
+
+ $success = true;
+
+ $internalIds = [];
+ $localIds = [];
+
+ foreach ( $sites as $site ) {
+ if ( $site->getInternalId() !== null ) {
+ $internalIds[] = $site->getInternalId();
+ }
+
+ $fields = [
+ // Site data
+ 'site_global_key' => $site->getGlobalId(), // TODO: check not null
+ 'site_type' => $site->getType(),
+ 'site_group' => $site->getGroup(),
+ 'site_source' => $site->getSource(),
+ 'site_language' => $site->getLanguageCode() === null ? '' : $site->getLanguageCode(),
+ 'site_protocol' => $site->getProtocol(),
+ 'site_domain' => strrev( $site->getDomain() ) . '.',
+ 'site_data' => serialize( $site->getExtraData() ),
+
+ // Site config
+ 'site_forward' => $site->shouldForward() ? 1 : 0,
+ 'site_config' => serialize( $site->getExtraConfig() ),
+ ];
+
+ $rowId = $site->getInternalId();
+ if ( $rowId !== null ) {
+ $success = $dbw->update(
+ 'sites', $fields, [ 'site_id' => $rowId ], __METHOD__
+ ) && $success;
+ } else {
+ $success = $dbw->insert( 'sites', $fields, __METHOD__ ) && $success;
+ $rowId = $dbw->insertId();
+ }
+
+ foreach ( $site->getLocalIds() as $idType => $ids ) {
+ foreach ( $ids as $id ) {
+ $localIds[] = [ $rowId, $idType, $id ];
+ }
+ }
+ }
+
+ if ( $internalIds !== [] ) {
+ $dbw->delete(
+ 'site_identifiers',
+ [ 'si_site' => $internalIds ],
+ __METHOD__
+ );
+ }
+
+ foreach ( $localIds as $localId ) {
+ $dbw->insert(
+ 'site_identifiers',
+ [
+ 'si_site' => $localId[0],
+ 'si_type' => $localId[1],
+ 'si_key' => $localId[2],
+ ],
+ __METHOD__
+ );
+ }
+
+ $dbw->endAtomic( __METHOD__ );
+
+ $this->reset();
+
+ return $success;
+ }
+
+ /**
+ * Resets the SiteList
+ *
+ * @since 1.25
+ */
+ public function reset() {
+ $this->sites = null;
+ }
+
+ /**
+ * Clears the list of sites stored in the database.
+ *
+ * @see SiteStore::clear()
+ *
+ * @return bool Success
+ */
+ public function clear() {
+ $dbw = $this->dbLoadBalancer->getConnection( DB_MASTER );
+
+ $dbw->startAtomic( __METHOD__ );
+ $ok = $dbw->delete( 'sites', '*', __METHOD__ );
+ $ok = $dbw->delete( 'site_identifiers', '*', __METHOD__ ) && $ok;
+ $dbw->endAtomic( __METHOD__ );
+
+ $this->reset();
+
+ return $ok;
+ }
+
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff