/**
* Determine if an image exists on the 'bad image list'.
*
- * @param $name String: the image name to check
+ * The format of MediaWiki:Bad_image_list is as follows:
+ * * Only list items (lines starting with "*") are considered
+ * * The first link on a line must be a link to a bad image
+ * * Any subsequent links on the same line are considered to be exceptions,
+ * i.e. articles where the image may occur inline.
+ *
+ * @param string $name the image name to check
+ * @param Title $contextTitle The page on which the image occurs, if known
* @return bool
*/
-function wfIsBadImage( $name ) {
- static $titleList = false;
+function wfIsBadImage( $name, $contextTitle = false ) {
+ static $badImages = false;
wfProfileIn( __METHOD__ );
+
+ # Run the extension hook
$bad = false;
- if( wfRunHooks( 'BadImage', array( $name, &$bad ) ) ) {
- if( !$titleList ) {
- # Build the list now
- $titleList = array();
- $lines = explode( "\n", wfMsgForContent( 'bad_image_list' ) );
- foreach( $lines as $line ) {
- if( preg_match( '/^\*\s*\[\[:?(.*?)\]\]/i', $line, $matches ) ) {
- $title = Title::newFromText( $matches[1] );
- if( is_object( $title ) && $title->getNamespace() == NS_IMAGE )
- $titleList[ $title->getDBkey() ] = true;
+ if( !wfRunHooks( 'BadImage', array( $name, &$bad ) ) ) {
+ wfProfileOut( __METHOD__ );
+ return $bad;
+ }
+
+ if( !$badImages ) {
+ # Build the list now
+ $badImages = array();
+ $lines = explode( "\n", wfMsgForContent( 'bad_image_list' ) );
+ foreach( $lines as $line ) {
+ # List items only
+ if ( substr( $line, 0, 1 ) !== '*' ) {
+ continue;
+ }
+
+ # Find all links
+ if ( !preg_match_all( '/\[\[:?(.*?)\]\]/', $line, $m ) ) {
+ continue;
+ }
+
+ $exceptions = array();
+ $imageDBkey = false;
+ foreach ( $m[1] as $i => $titleText ) {
+ $title = Title::newFromText( $titleText );
+ if ( !is_null( $title ) ) {
+ if ( $i == 0 ) {
+ $imageDBkey = $title->getDBkey();
+ } else {
+ $exceptions[$title->getPrefixedDBkey()] = true;
+ }
}
}
+
+ if ( $imageDBkey !== false ) {
+ $badImages[$imageDBkey] = $exceptions;
+ }
}
- wfProfileOut( __METHOD__ );
- return array_key_exists( $name, $titleList );
- } else {
- wfProfileOut( __METHOD__ );
- return $bad;
}
+
+ $contextKey = $contextTitle ? $contextTitle->getPrefixedDBkey() : false;
+ $bad = isset( $badImages[$name] ) && !isset( $badImages[$name][$contextKey] );
+ wfProfileOut( __METHOD__ );
+ return $bad;
}
/**