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<?php
/**
* Foreign file accessible through api.php requests.
*
* @file
* @ingroup FileRepo
*/
/**
* Foreign file accessible through api.php requests.
* Very hacky and inefficient, do not use :D
*
* @ingroup FileRepo
*/
class ForeignAPIFile extends File {
private $mExists;
/**
* @param $title
* @param $repo ForeignApiRepo
* @param $info
* @param bool $exists
*/
function __construct( $title, $repo, $info, $exists = false ) {
parent::__construct( $title, $repo );
$this->mInfo = $info;
$this->mExists = $exists;
}
/**
* @param $title Title
* @param $repo ForeignApiRepo
* @return ForeignAPIFile|null
*/
static function newFromTitle( $title, $repo ) {
$data = $repo->fetchImageQuery( array(
'titles' => 'File:' . $title->getDBKey(),
'iiprop' => self::getProps(),
'prop' => 'imageinfo',
'iimetadataversion' => MediaHandler::getMetadataVersion()
) );
$info = $repo->getImageInfo( $data );
if( $info ) {
$lastRedirect = isset( $data['query']['redirects'] )
? count( $data['query']['redirects'] ) - 1
: -1;
if( $lastRedirect >= 0 ) {
$newtitle = Title::newFromText( $data['query']['redirects'][$lastRedirect]['to']);
$img = new ForeignAPIFile( $newtitle, $repo, $info, true );
if( $img ) {
$img->redirectedFrom( $title->getDBkey() );
}
} else {
$img = new ForeignAPIFile( $title, $repo, $info, true );
}
return $img;
} else {
return null;
}
}
/**
* Get the property string for iiprop and aiprop
*/
static function getProps() {
return 'timestamp|user|comment|url|size|sha1|metadata|mime';
}
// Dummy functions...
public function exists() {
return $this->mExists;
}
public function getPath() {
return false;
}
function transform( $params, $flags = 0 ) {
if( !$this->canRender() ) {
// show icon
return parent::transform( $params, $flags );
}
// Note, the this->canRender() check above implies
// that we have a handler, and it can do makeParamString.
$otherParams = $this->handler->makeParamString( $params );
$thumbUrl = $this->repo->getThumbUrlFromCache(
$this->getName(),
isset( $params['width'] ) ? $params['width'] : -1,
isset( $params['height'] ) ? $params['height'] : -1,
$otherParams );
return $this->handler->getTransform( $this, 'bogus', $thumbUrl, $params );
}
// Info we can get from API...
public function getWidth( $page = 1 ) {
return isset( $this->mInfo['width'] ) ? intval( $this->mInfo['width'] ) : 0;
}
public function getHeight( $page = 1 ) {
return isset( $this->mInfo['height'] ) ? intval( $this->mInfo['height'] ) : 0;
}
public function getMetadata() {
if ( isset( $this->mInfo['metadata'] ) ) {
return serialize( self::parseMetadata( $this->mInfo['metadata'] ) );
}
return null;
}
public static function parseMetadata( $metadata ) {
if( !is_array( $metadata ) ) {
return $metadata;
}
$ret = array();
foreach( $metadata as $meta ) {
$ret[ $meta['name'] ] = self::parseMetadata( $meta['value'] );
}
return $ret;
}
public function getSize() {
return isset( $this->mInfo['size'] ) ? intval( $this->mInfo['size'] ) : null;
}
public function getUrl() {
return isset( $this->mInfo['url'] ) ? strval( $this->mInfo['url'] ) : null;
}
public function getUser( $method='text' ) {
return isset( $this->mInfo['user'] ) ? strval( $this->mInfo['user'] ) : null;
}
public function getDescription() {
return isset( $this->mInfo['comment'] ) ? strval( $this->mInfo['comment'] ) : null;
}
function getSha1() {
return isset( $this->mInfo['sha1'] ) ?
wfBaseConvert( strval( $this->mInfo['sha1'] ), 16, 36, 31 ) :
null;
}
function getTimestamp() {
return wfTimestamp( TS_MW,
isset( $this->mInfo['timestamp'] ) ?
strval( $this->mInfo['timestamp'] ) :
null
);
}
function getMimeType() {
if( !isset( $this->mInfo['mime'] ) ) {
$magic = MimeMagic::singleton();
$this->mInfo['mime'] = $magic->guessTypesForExtension( $this->getExtension() );
}
return $this->mInfo['mime'];
}
/// @todo FIXME: May guess wrong on file types that can be eg audio or video
function getMediaType() {
$magic = MimeMagic::singleton();
return $magic->getMediaType( null, $this->getMimeType() );
}
function getDescriptionUrl() {
return isset( $this->mInfo['descriptionurl'] )
? $this->mInfo['descriptionurl']
: false;
}
/**
* Only useful if we're locally caching thumbs anyway...
*/
function getThumbPath( $suffix = '' ) {
if ( $this->repo->canCacheThumbs() ) {
$path = $this->repo->getZonePath('thumb') . '/' . $this->getHashPath( $this->getName() );
if ( $suffix ) {
$path = $path . $suffix . '/';
}
return $path;
} else {
return null;
}
}
function getThumbnails() {
$files = array();
$dir = $this->getThumbPath( $this->getName() );
if ( is_dir( $dir ) ) {
$handle = opendir( $dir );
if ( $handle ) {
while ( false !== ( $file = readdir($handle) ) ) {
if ( $file[0] != '.' ) {
$files[] = $file;
}
}
closedir( $handle );
}
}
return $files;
}
function purgeCache() {
$this->purgeThumbnails();
$this->purgeDescriptionPage();
}
function purgeDescriptionPage() {
global $wgMemc, $wgContLang;
$url = $this->repo->getDescriptionRenderUrl( $this->getName(), $wgContLang->getCode() );
$key = $this->repo->getLocalCacheKey( 'RemoteFileDescription', 'url', md5($url) );
$wgMemc->delete( $key );
}
function purgeThumbnails() {
global $wgMemc;
$key = $this->repo->getLocalCacheKey( 'ForeignAPIRepo', 'ThumbUrl', $this->getName() );
$wgMemc->delete( $key );
$files = $this->getThumbnails();
$dir = $this->getThumbPath( $this->getName() );
foreach ( $files as $file ) {
unlink( $dir . $file );
}
if ( is_dir( $dir ) ) {
rmdir( $dir ); // Might have already gone away, spews errors if we don't.
}
}
}
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