1 files changed, 72 insertions, 0 deletions
diff --git a/www/wiki/includes/exception/PermissionsError.php b/www/wiki/includes/exception/PermissionsError.php
new file mode 100644
index 00000000..cc69a762
--- /dev/null
+++ b/www/wiki/includes/exception/PermissionsError.php
@@ -0,0 +1,72 @@
+<?php
+/**
+ * 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
+ *
+ * @file
+ */
+
+/**
+ * Show an error when a user tries to do something they do not have the necessary
+ * permissions for.
+ *
+ * @since 1.18
+ * @ingroup Exception
+ */
+class PermissionsError extends ErrorPageError {
+	public $permission, $errors;
+
+	/**
+	 * @param string|null $permission A permission name or null if unknown
+	 * @param array $errors Error message keys or [key, param...] arrays; must not be empty if
+	 *   $permission is null
+	 * @throws \InvalidArgumentException
+	 */
+	public function __construct( $permission, $errors = [] ) {
+		global $wgLang;
+
+		if ( $permission === null && !$errors ) {
+			throw new \InvalidArgumentException( __METHOD__ .
+				': $permission and $errors cannot both be empty' );
+		}
+
+		$this->permission = $permission;
+
+		if ( !count( $errors ) ) {
+			$groups = [];
+			foreach ( User::getGroupsWithPermission( $this->permission ) as $group ) {
+				$groups[] = UserGroupMembership::getLink( $group, RequestContext::getMain(), 'wiki' );
+			}
+
+			if ( $groups ) {
+				$errors[] = [ 'badaccess-groups', $wgLang->commaList( $groups ), count( $groups ) ];
+			} else {
+				$errors[] = [ 'badaccess-group0' ];
+			}
+		}
+
+		$this->errors = $errors;
+
+		// Give the parent class something to work with
+		parent::__construct( 'permissionserrors', Message::newFromSpecifier( $errors[0] ) );
+	}
+
+	public function report() {
+		global $wgOut;
+
+		$wgOut->showPermissionsErrorPage( $this->errors, $this->permission );
+		$wgOut->output();
+	}
+}