/**
* Add the importer to the Tools > Import menu
*/
function register_importer()
{
/* Only register the importer if the current user can manage snippets */
if (!defined('WP_LOAD_IMPORTERS') || !current_user_can(get_snippets_cap())) {
return;
}
/* Register the Code Snippets importer with WordPress */
register_importer('code-snippets', __('Code Snippets', 'code-snippets'), __('Import snippets from a code snippets export file', 'code-snippets'), array($this, 'render'));
}
/**
* Register the top-level 'Snippets' menu and associated 'Manage' subpage
*
* @uses add_menu_page() to register a top-level menu
* @uses add_submenu_page() to register a sub-menu
*/
function register()
{
/* Register the top-level menu */
add_menu_page(__('Snippets', 'code-snippets'), __('Snippets', 'code-snippets'), get_snippets_cap(), code_snippets_get_menu_slug(), array($this, 'render'), 'div', is_network_admin() ? 21 : 67);
/* Register the sub-menu */
parent::register();
}
/**
* Executed when the admin page is loaded
*/
public function load()
{
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not authorized to access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
}
/**
* Initializes the list table class and loads the help tabs
* for the Manage Snippets page
*
* @since 1.0
* @access private
*/
function code_snippets_load_manage_menu()
{
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not authorized to access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
/* Load the screen help tabs */
require plugin_dir_path(__FILE__) . 'admin-help.php';
/* Initialize the snippet table class */
require_once plugin_dir_path(__FILE__) . 'class-list-table.php';
global $code_snippets_list_table;
$code_snippets_list_table = new Code_Snippets_List_Table();
$code_snippets_list_table->prepare_items();
}
/**
* Processes import files and loads the help tabs for the Import Snippets page
*
* @since 1.3
*
* @uses import_snippets() To process the import file
* @uses wp_redirect() To pass the import results to the page
* @uses add_query_arg() To append the results to the current URI
*/
function code_snippets_load_import_menu()
{
$network = get_current_screen()->is_network;
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
/* Process import files */
if (isset($_FILES['code_snippets_import_file']['tmp_name'])) {
/* Import the snippets. The result is the number of snippets that were imported */
$result = import_snippets($_FILES['code_snippets_import_file']['tmp_name'], $network);
/* Send the amount of imported snippets to the page */
$url = add_query_arg(false === $result ? array('error' => true) : array('imported' => $result));
wp_redirect(esc_url_raw($url));
}
/* Load the screen help tabs */
require plugin_dir_path(__FILE__) . 'admin-help.php';
}
/**
* Run the active snippets
*
* @since 2.0
*
* @return bool true on success, false on failure
*/
function execute_active_snippets()
{
/* Bail early if safe mode is active */
if (defined('CODE_SNIPPETS_SAFE_MODE') && CODE_SNIPPETS_SAFE_MODE) {
return false;
}
if (isset($_GET['code_snippets_safe_mode']) && $_GET['code_snippets_safe_mode'] && current_user_can(get_snippets_cap())) {
return false;
}
/** @var wpdb $wpdb */
global $wpdb;
$current_scope = is_admin() ? 1 : 2;
/* Check if the snippets tables exist */
$table_exists = $wpdb->get_var("SHOW TABLES LIKE '{$wpdb->snippets}'") === $wpdb->snippets;
$ms_table_exists = is_multisite() && $wpdb->get_var("SHOW TABLES LIKE '{$wpdb->ms_snippets}'") === $wpdb->ms_snippets;
$sql = '';
/* Fetch snippets from site table */
if ($table_exists) {
$sql = $wpdb->prepare("SELECT id, code FROM {$wpdb->snippets} WHERE active=1 AND (scope=0 OR scope=%d)", $current_scope);
}
/* Fetch snippets from the network table */
if ($ms_table_exists) {
if (!empty($sql)) {
$sql .= ' UNION ALL ';
}
/* Only select snippets in the current scope */
$sql .= $wpdb->prepare("SELECT id, code FROM {$wpdb->ms_snippets} WHERE active=1 AND (scope=0 OR scope=%d)", $current_scope);
/* Add shared network snippets */
if ($active_shared_ids = get_option('active_shared_network_snippets', false)) {
$sql .= ' UNION ALL ';
$sql .= $wpdb->prepare(sprintf("SELECT id, code FROM {$wpdb->ms_snippets} WHERE id IN (%s)", implode(',', array_fill(0, count($active_shared_ids), '%d'))), $active_shared_ids);
}
}
/* Return false if there is no query */
if (empty($sql)) {
return false;
}
/* Grab the snippets from the database */
$active_snippets = $wpdb->get_results($sql, OBJECT_K);
/* Loop through the returned snippets and execute the PHP code */
foreach ($active_snippets as $snippet_id => $snippet) {
if (apply_filters('code_snippets/allow_execute_snippet', true, $snippet_id)) {
execute_snippet($snippet->code, $snippet_id);
}
}
return true;
}
/**
* Loads the help tabs for the Edit Snippets page
*
* @since 1.0
* @access private
* @uses wp_redirect To pass the results to the page
*/
function code_snippets_load_single_menu()
{
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not authorized to access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
/* Load the screen help tabs */
require plugin_dir_path(__FILE__) . 'admin-help.php';
/* Enqueue the code editor and other scripts and styles */
add_action('admin_enqueue_scripts', 'code_snippets_enqueue_codemirror', 9);
/* Don't allow visiting the edit snippet page without a valid ID */
if (code_snippets_get_menu_slug('edit') === $_REQUEST['page']) {
if (!isset($_REQUEST['id']) || 0 == $_REQUEST['id']) {
wp_redirect(code_snippets_get_menu_url('add'));
exit;
}
}
/* Make sure the nonce validates before we do any snippet ops */
if (!isset($_REQUEST['_wpnonce']) || !wp_verify_nonce($_REQUEST['_wpnonce'], 'save_snippet')) {
return;
}
/* Save the snippet if one has been submitted */
if (isset($_POST['save_snippet']) || isset($_POST['save_snippet_activate']) || isset($_POST['save_snippet_deactivate'])) {
/* Activate or deactivate the snippet before saving if we clicked the button */
if (isset($_POST['save_snippet_activate'])) {
$_POST['snippet_active'] = 1;
} elseif (isset($_POST['save_snippet_deactivate'])) {
$_POST['snippet_active'] = 0;
}
/* Save the snippet to the database */
$result = save_snippet(stripslashes_deep($_POST));
/* Build the status message and redirect */
$query_args = array();
if ($result && isset($_POST['save_snippet_activate'])) {
/* Snippet was activated addition to saving*/
$query_args['activated'] = true;
} elseif ($result && isset($_POST['save_snippet_deactivate'])) {
/* Snippet was deactivated addition to saving*/
$query_args['deactivated'] = true;
}
if (!$result || $result < 1) {
/* An error occurred */
$query_args['invalid'] = true;
} elseif (isset($_POST['snippet_id'])) {
/* Existing snippet was updated */
$query_args['id'] = $result;
$query_args['updated'] = true;
} else {
/* New snippet was added */
$query_args['id'] = $result;
$query_args['added'] = true;
}
/* Redirect to edit snippet page */
wp_redirect(add_query_arg($query_args, code_snippets_get_menu_url('edit')));
} elseif (isset($_POST['snippet_id'], $_POST['delete_snippet'])) {
delete_snippet($_POST['snippet_id']);
wp_redirect(add_query_arg('delete', true, code_snippets_get_menu_url('manage')));
} elseif (isset($_POST['snippet_id'], $_POST['export_snippet'])) {
export_snippets($_POST['snippet_id']);
}
}
/**
* Register the setting sub-menu
*
* @since 2.0
* @access private
*
* @uses add_submenu_page() To register a sub-menu
*/
function code_snippets_add_settings_menu()
{
add_submenu_page(code_snippets_get_menu_slug(), __('Snippets Settings', 'code-snippets'), __('Settings', 'code-snippets'), get_snippets_cap(), code_snippets_get_menu_slug('settings'), 'code_snippets_render_settings_menu');
}