1 files changed, 66 insertions, 0 deletions
diff --git a/platform/www/inc/Action/Exception/ActionException.php b/platform/www/inc/Action/Exception/ActionException.php
new file mode 100644
index 0000000..381584c
--- /dev/null
+++ b/platform/www/inc/Action/Exception/ActionException.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace dokuwiki\Action\Exception;
+
+/**
+ * Class ActionException
+ *
+ * This exception and its subclasses signal that the current action should be
+ * aborted and a different action should be used instead. The new action can
+ * be given as parameter in the constructor. Defaults to 'show'
+ *
+ * The message will NOT be shown to the enduser
+ *
+ * @package dokuwiki\Action\Exception
+ */
+class ActionException extends \Exception {
+
+    /** @var string the new action */
+    protected $newaction;
+
+    /** @var bool should the exception's message be shown to the user? */
+    protected $displayToUser = false;
+
+    /**
+     * ActionException constructor.
+     *
+     * When no new action is given 'show' is assumed. For requests that originated in a POST,
+     * a 'redirect' is used which will cause a redirect to the 'show' action.
+     *
+     * @param string|null $newaction the action that should be used next
+     * @param string $message optional message, will not be shown except for some dub classes
+     */
+    public function __construct($newaction = null, $message = '') {
+        global $INPUT;
+        parent::__construct($message);
+        if(is_null($newaction)) {
+            if(strtolower($INPUT->server->str('REQUEST_METHOD')) == 'post') {
+                $newaction = 'redirect';
+            } else {
+                $newaction = 'show';
+            }
+        }
+
+        $this->newaction = $newaction;
+    }
+
+    /**
+     * Returns the action to use next
+     *
+     * @return string
+     */
+    public function getNewAction() {
+        return $this->newaction;
+    }
+
+    /**
+     * Should this Exception's message be shown to the user?
+     *
+     * @param null|bool $set when null is given, the current setting is not changed
+     * @return bool
+     */
+    public function displayToUser($set = null) {
+        if(!is_null($set)) $this->displayToUser = $set;
+        return $set;
+    }
+}