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