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<?php
/**
* @addtogroup Media
*/
class ArchivedFile
{
/**
* Returns a file object from the filearchive table
* @param $title, the corresponding image page title
* @param $id, the image id, a unique key
* @param $key, optional storage key
* @return ResultWrapper
*/
function ArchivedFile( $title, $id=0, $key='' ) {
if( !is_object( $title ) ) {
throw new MWException( 'ArchivedFile constructor given bogus title.' );
}
$conds = ($id) ? "fa_id = $id" : "fa_storage_key = '$key'";
if( $title->getNamespace() == NS_IMAGE ) {
$dbr = wfGetDB( DB_SLAVE );
$res = $dbr->select( 'filearchive',
array(
'fa_id',
'fa_name',
'fa_storage_key',
'fa_storage_group',
'fa_size',
'fa_bits',
'fa_width',
'fa_height',
'fa_metadata',
'fa_media_type',
'fa_major_mime',
'fa_minor_mime',
'fa_description',
'fa_user',
'fa_user_text',
'fa_timestamp',
'fa_deleted' ),
array(
'fa_name' => $title->getDbKey(),
$conds ),
__METHOD__,
array( 'ORDER BY' => 'fa_timestamp DESC' ) );
if ( $dbr->numRows( $res ) == 0 ) {
// this revision does not exist?
return;
}
$ret = $dbr->resultObject( $res );
$row = $ret->fetchObject();
// initialize fields for filestore image object
$this->mId = intval($row->fa_id);
$this->mName = $row->fa_name;
$this->mGroup = $row->fa_storage_group;
$this->mKey = $row->fa_storage_key;
$this->mSize = $row->fa_size;
$this->mBits = $row->fa_bits;
$this->mWidth = $row->fa_width;
$this->mHeight = $row->fa_height;
$this->mMetaData = $row->fa_metadata;
$this->mMime = "$row->fa_major_mime/$row->fa_minor_mime";
$this->mType = $row->fa_media_type;
$this->mDescription = $row->fa_description;
$this->mUser = $row->fa_user;
$this->mUserText = $row->fa_user_text;
$this->mTimestamp = $row->fa_timestamp;
$this->mDeleted = $row->fa_deleted;
} else {
throw new MWException( 'This title does not correspond to an image page.' );
return;
}
return true;
}
/**
* int $field one of DELETED_* bitfield constants
* for file or revision rows
* @return bool
*/
function isDeleted( $field ) {
return ($this->mDeleted & $field) == $field;
}
/**
* Determine if the current user is allowed to view a particular
* field of this FileStore image file, if it's marked as deleted.
* @param int $field
* @return bool
*/
function userCan( $field ) {
if( isset($this->mDeleted) && ($this->mDeleted & $field) == $field ) {
// images
global $wgUser;
$permission = ( $this->mDeleted & File::DELETED_RESTRICTED ) == File::DELETED_RESTRICTED
? 'hiderevision'
: 'deleterevision';
wfDebug( "Checking for $permission due to $field match on $this->mDeleted\n" );
return $wgUser->isAllowed( $permission );
} else {
return true;
}
}
}
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