*
* @file
*/
-abstract class Action {
+abstract class Action extends ContextSource {
/**
* Page on which we're performing the action
protected $page;
/**
- * RequestContext if specified; otherwise we'll use the Context from the Page
- * @var RequestContext
+ * IContextSource if specified; otherwise we'll use the Context from the Page
+ * @var IContextSource
*/
protected $context;
return self::getClass( $name, array() ) !== null;
}
- /**
- * Get the RequestContext in use here
- * @return RequestContext
- */
- protected final function getContext() {
- if ( $this->context instanceof RequestContext ) {
- return $this->context;
- }
- return $this->page->getContext();
- }
-
- /**
- * Get the WebRequest being used for this instance
- *
- * @return WebRequest
- */
- protected final function getRequest() {
- return $this->getContext()->getRequest();
- }
-
- /**
- * Get the OutputPage being used for this instance
- *
- * @return OutputPage
- */
- protected final function getOutput() {
- return $this->getContext()->getOutput();
- }
-
- /**
- * Shortcut to get the User being used for this instance
- *
- * @return User
- */
- protected final function getUser() {
- return $this->getContext()->getUser();
- }
-
- /**
- * Shortcut to get the Skin being used for this instance
- *
- * @return Skin
- */
- protected final function getSkin() {
- return $this->getContext()->getSkin();
- }
-
- /**
- * Shortcut to get the user Language being used for this instance
- *
- * @return Skin
- */
- protected final function getLang() {
- return $this->getContext()->getLang();
- }
-
- /**
- * Shortcut to get the Title object from the page
- * @return Title
- */
- protected final function getTitle() {
- return $this->page->getTitle();
- }
-
/**
* Protected constructor: use Action::factory( $action, $page ) to actually build
* these things in the real world
* @throws ErrorPageError
*/
protected function checkCanExecute( User $user ) {
- if ( $this->requiresWrite() && wfReadOnly() ) {
- throw new ReadOnlyError();
- }
-
- if ( $this->getRestriction() !== null && !$user->isAllowed( $this->getRestriction() ) ) {
- throw new PermissionsError( $this->getRestriction() );
+ $right = $this->getRestriction();
+ if ( $right !== null ) {
+ $errors = $this->getTitle()->getUserPermissionsErrors( $right, $user );
+ if ( count( $errors ) ) {
+ throw new PermissionsError( $right, $errors );
+ }
}
if ( $this->requiresUnblock() && $user->isBlocked() ) {
$block = $user->mBlock;
throw new UserBlockedError( $block );
}
+
+ // This should be checked at the end so that the user won't think the
+ // error is only temporary when he also don't have the rights to execute
+ // this action
+ if ( $this->requiresWrite() && wfReadOnly() ) {
+ throw new ReadOnlyError();
+ }
}
/**
* @return String HTML which will be sent to $form->addPreText()
*/
protected function preText() { return ''; }
+
+ /**
+ * @return string
+ */
protected function postText() { return ''; }
/**