first import

sites/all/modules/ctools/plugins/access/node_access.inc

@@ -0,0 +1,89 @@
+<?php
+
+/**
+ * @file
+ * Plugin to provide access control based upon node type.
+ */
+
+/**
+ * Plugins are described by creating a $plugin array which will be used
+ * by the system that includes this file.
+ */
+$plugin = array(
+  'title' => t("Node: accessible"),
+  'description' => t('Control access with built in Drupal node access test.'),
+  'callback' => 'ctools_node_access_ctools_access_check',
+  'default' => array('type' => 'view'),
+  'settings form' => 'ctools_node_access_ctools_access_settings',
+  'settings form submit' => 'ctools_node_access_ctools_access_settings_submit',
+  'summary' => 'ctools_node_access_ctools_access_summary',
+  'required context' => array(
+    new ctools_context_required(t('User'), 'user'),
+    new ctools_context_required(t('Node'), 'node'),
+  ),
+);
+
+/**
+ * Settings form for the 'by node_access' access plugin
+ */
+function ctools_node_access_ctools_access_settings($form, &$form_state, $conf) {
+  $form['settings']['type'] = array(
+    '#title' => t('Operation'),
+    '#type' => 'radios',
+    '#options' => array(
+      'view' => t('View'),
+      'update' => t('Update'),
+      'delete' => t('Delete'),
+      'create' => t('Create nodes of the same type'),
+    ),
+    '#description' => t('Using built in Drupal node access rules, determine if the user can perform the selected operation on the node.'),
+    '#default_value' => $conf['type'],
+  );
+  return $form;
+}
+
+/**
+ * Check for access.
+ */
+function ctools_node_access_ctools_access_check($conf, $context) {
+  // As far as I know there should always be a context at this point, but this
+  // is safe.
+  list($user_context, $node_context) = $context;
+  if (empty($node_context) || empty($node_context->data) || empty($node_context->data->type)) {
+    return FALSE;
+  }
+
+  if (empty($user_context) || empty($user_context->data)) {
+    return FALSE;
+  }
+
+  if ($conf['type'] == 'create') {
+    return node_access('create', $node_context->data->type, $user_context->data);
+  }
+  else {
+    return node_access($conf['type'], $node_context->data, $user_context->data);
+  }
+}
+
+/**
+ * Provide a summary description based upon the checked node_accesss.
+ */
+function ctools_node_access_ctools_access_summary($conf, $context) {
+  list($user_context, $node_context) = $context;
+  $replacement = array('@user' => $user_context->identifier, '@node' => $node_context->identifier);
+
+  switch ($conf['type']) {
+    case 'view':
+      return t('@user can view @node.', $replacement);
+
+    case 'update':
+      return t('@user can edit @node.', $replacement);
+
+    case 'delete':
+      return t('@user can delete @node.', $replacement);
+
+    case 'create':
+      return t('@user can create nodes of the same type as @node.', $replacement);
+  }
+}
+