%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
/**
* Utility for importing site entries from XML.
* For the expected format of the input, see docs/sitelist.txt and docs/sitelist-1.0.xsd.
*
* 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 GPL-2.0-or-later
* @author Daniel Kinzler
*/
class SiteImporter {
/**
* @var SiteStore
*/
private $store;
/**
* @var callable|null
*/
private $exceptionCallback;
/**
* @param SiteStore $store
*/
public function __construct( SiteStore $store ) {
$this->store = $store;
}
/**
* @return callable
*/
public function getExceptionCallback() {
return $this->exceptionCallback;
}
/**
* @param callable $exceptionCallback
*/
public function setExceptionCallback( $exceptionCallback ) {
$this->exceptionCallback = $exceptionCallback;
}
/**
* @param string $file
*/
public function importFromFile( $file ) {
$xml = file_get_contents( $file );
if ( $xml === false ) {
throw new RuntimeException( 'Failed to read ' . $file . '!' );
}
$this->importFromXML( $xml );
}
/**
* @param string $xml
*
* @throws InvalidArgumentException
*/
public function importFromXML( $xml ) {
$document = new DOMDocument();
$oldLibXmlErrors = libxml_use_internal_errors( true );
$ok = $document->loadXML( $xml, LIBXML_NONET );
if ( !$ok ) {
$errors = libxml_get_errors();
libxml_use_internal_errors( $oldLibXmlErrors );
foreach ( $errors as $error ) {
/** @var LibXMLError $error */
throw new InvalidArgumentException(
'Malformed XML: ' . $error->message . ' in line ' . $error->line
);
}
throw new InvalidArgumentException( 'Malformed XML!' );
}
libxml_use_internal_errors( $oldLibXmlErrors );
$this->importFromDOM( $document->documentElement );
}
/**
* @param DOMElement $root
*/
private function importFromDOM( DOMElement $root ) {
$sites = $this->makeSiteList( $root );
$this->store->saveSites( $sites );
}
/**
* @param DOMElement $root
*
* @return Site[]
*/
private function makeSiteList( DOMElement $root ) {
$sites = [];
// Old sites, to get the row IDs that correspond to the global site IDs.
// TODO: Get rid of internal row IDs, they just get in the way. Get rid of ORMRow, too.
$oldSites = $this->store->getSites();
$current = $root->firstChild;
while ( $current ) {
if ( $current instanceof DOMElement && $current->tagName === 'site' ) {
try {
$site = $this->makeSite( $current );
$key = $site->getGlobalId();
if ( $oldSites->hasSite( $key ) ) {
$oldSite = $oldSites->getSite( $key );
$site->setInternalId( $oldSite->getInternalId() );
}
$sites[$key] = $site;
} catch ( Exception $ex ) {
$this->handleException( $ex );
}
}
$current = $current->nextSibling;
}
return $sites;
}
/**
* @param DOMElement $siteElement
*
* @return Site
* @throws InvalidArgumentException
*/
public function makeSite( DOMElement $siteElement ) {
if ( $siteElement->tagName !== 'site' ) {
throw new InvalidArgumentException( 'Expected <site> tag, found ' . $siteElement->tagName );
}
$type = $this->getAttributeValue( $siteElement, 'type', Site::TYPE_UNKNOWN );
$site = Site::newForType( $type );
$site->setForward( $this->hasChild( $siteElement, 'forward' ) );
$site->setGlobalId( $this->getChildText( $siteElement, 'globalid' ) );
$site->setGroup( $this->getChildText( $siteElement, 'group', Site::GROUP_NONE ) );
$site->setSource( $this->getChildText( $siteElement, 'source', Site::SOURCE_LOCAL ) );
$pathTags = $siteElement->getElementsByTagName( 'path' );
for ( $i = 0; $i < $pathTags->length; $i++ ) {
$pathElement = $pathTags->item( $i );
$pathType = $this->getAttributeValue( $pathElement, 'type' );
$path = $pathElement->textContent;
$site->setPath( $pathType, $path );
}
$idTags = $siteElement->getElementsByTagName( 'localid' );
for ( $i = 0; $i < $idTags->length; $i++ ) {
$idElement = $idTags->item( $i );
$idType = $this->getAttributeValue( $idElement, 'type' );
$id = $idElement->textContent;
$site->addLocalId( $idType, $id );
}
// @todo: import <data>
// @todo: import <config>
return $site;
}
/**
* @param DOMElement $element
* @param string $name
* @param string|null|bool $default
*
* @return null|string
* @throws MWException If the attribute is not found and no default is provided
*/
private function getAttributeValue( DOMElement $element, $name, $default = false ) {
$node = $element->getAttributeNode( $name );
if ( !$node ) {
if ( $default !== false ) {
return $default;
} else {
throw new MWException(
'Required ' . $name . ' attribute not found in <' . $element->tagName . '> tag'
);
}
}
return $node->textContent;
}
/**
* @param DOMElement $element
* @param string $name
* @param string|null|bool $default
*
* @return null|string
* @throws MWException If the child element is not found and no default is provided
*/
private function getChildText( DOMElement $element, $name, $default = false ) {
$elements = $element->getElementsByTagName( $name );
if ( $elements->length < 1 ) {
if ( $default !== false ) {
return $default;
} else {
throw new MWException(
'Required <' . $name . '> tag not found inside <' . $element->tagName . '> tag'
);
}
}
$node = $elements->item( 0 );
return $node->textContent;
}
/**
* @param DOMElement $element
* @param string $name
*
* @return bool
* @throws MWException
*/
private function hasChild( DOMElement $element, $name ) {
return $this->getChildText( $element, $name, null ) !== null;
}
/**
* @param Exception $ex
*/
private function handleException( Exception $ex ) {
if ( $this->exceptionCallback ) {
call_user_func( $this->exceptionCallback, $ex );
} else {
wfLogWarning( $ex->getMessage() );
}
}
}
Zerion Mini Shell 1.0