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class-tgm-plugin-activation.php
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class-tgm-plugin-activation.php
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<?php
/**
* Plugin installation and activation for WordPress themes.
*
* @package TGM-Plugin-Activation
* @version 2.2.0
* @author Thomas Griffin <thomas@thomasgriffinmedia.com>
* @author Gary Jones <gamajo@gamajo.com>
* @copyright Copyright (c) 2011, Thomas Griffin
* @license http://opensource.org/licenses/gpl-3.0.php GPL v3
* @link https://github.com/thomasgriffin/TGM-Plugin-Activation
*/
/*
Copyright 2011 Thomas Griffin (email : thomas@thomasgriffinmedia.com)
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 3, as
published by the Free Software Foundation.
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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
if ( ! class_exists( 'TGM_Plugin_Activation' ) ) {
/**
* Automatic plugin installation and activation library.
*
* Creates a way to automatically install and activate plugins from within themes.
* The plugins can be either pre-packaged, downloaded from the WordPress
* Plugin Repository or downloaded from a private repository.
*
* @since 1.0.0
*
* @package TGM-Plugin-Activation
* @author Thomas Griffin <thomas@thomasgriffinmedia.com>
* @author Gary Jones <gamajo@gamajo.com>
*/
class TGM_Plugin_Activation {
/**
* Holds a copy of itself, so it can be referenced by the class name.
*
* @since 1.0.0
*
* @var TGM_Plugin_Activation
*/
static $instance;
/**
* Holds arrays of plugin details.
*
* @since 1.0.0
*
* @var array
*/
public $plugins = array();
/**
* Parent menu slug for plugins page.
*
* @since 2.2.0
*
* @var string Parent menu slug. Defaults to 'themes.php'.
*/
public $parent_menu_slug = 'themes.php';
/**
* Parent URL slug for URL references.
*
* This is useful if you want to place the custom plugins page as a
* submenu item under a custom parent menu.
*
* @since 2.2.0
*
* @var string Parent URL slug. Defaults to 'themes.php'.
*/
public $parent_url_slug = 'themes.php';
/**
* Name of the querystring argument for the admin page.
*
* @since 1.0.0
*
* @var string
*/
public $menu = 'install-required-plugins';
/**
* Text domain for localization support.
*
* @since 1.1.0
*
* @var string
*/
public $domain = 'tgmpa';
/**
* Default absolute path to folder containing pre-packaged plugin zip files.
*
* @since 2.0.0
*
* @var string Absolute path prefix to packaged zip file location. Default is empty string.
*/
public $default_path = '';
/**
* Flag to show admin notices or not.
*
* @since 2.1.0
*
* @var boolean
*/
public $has_notices = true;
/**
* Flag to set automatic activation of plugins. Off by default.
*
* @since 2.2.0
*
* @var boolean
*/
public $is_automatic = false;
/**
* Optional message to display before the plugins table.
*
* @since 2.2.0
*
* @var string Message filtered by wp_kses_post(). Default is empty string.
*/
public $message = '';
/**
* Holds configurable array of strings.
*
* Default values are added in the constructor.
*
* @since 2.0.0
*
* @var array
*/
public $strings = array();
/**
* Adds a reference of this object to $instance, populates default strings,
* does the tgmpa_init action hook, and hooks in the interactions to init.
*
* @since 1.0.0
*
* @see TGM_Plugin_Activation::init()
*/
public function __construct() {
self::$instance =& $this;
$this->strings = array(
'page_title' => __( 'Install Required Plugins', $this->domain ),
'menu_title' => __( 'Install Plugins', $this->domain ),
'installing' => __( 'Installing Plugin: %s', $this->domain ),
'oops' => __( 'Something went wrong.', $this->domain ),
'notice_can_install_required' => _n_noop( 'This theme requires the following plugin: %1$s.', 'This theme requires the following plugins: %1$s.' ),
'notice_can_install_recommended' => _n_noop( 'This theme recommends the following plugin: %1$s.', 'This theme recommends the following plugins: %1$s.' ),
'notice_cannot_install' => _n_noop( 'Sorry, but you do not have the correct permissions to install the %s plugin. Contact the administrator of this site for help on getting the plugin installed.', 'Sorry, but you do not have the correct permissions to install the %s plugins. Contact the administrator of this site for help on getting the plugins installed.' ),
'notice_can_activate_required' => _n_noop( 'The following required plugin is currently inactive: %1$s.', 'The following required plugins are currently inactive: %1$s.' ),
'notice_can_activate_recommended' => _n_noop( 'The following recommended plugin is currently inactive: %1$s.', 'The following recommended plugins are currently inactive: %1$s.' ),
'notice_cannot_activate' => _n_noop( 'Sorry, but you do not have the correct permissions to activate the %s plugin. Contact the administrator of this site for help on getting the plugin activated.', 'Sorry, but you do not have the correct permissions to activate the %s plugins. Contact the administrator of this site for help on getting the plugins activated.' ),
'notice_ask_to_update' => _n_noop( 'The following plugin needs to be updated to its latest version to ensure maximum compatibility with this theme: %1$s.', 'The following plugins need to be updated to their latest version to ensure maximum compatibility with this theme: %1$s.' ),
'notice_cannot_update' => _n_noop( 'Sorry, but you do not have the correct permissions to update the %s plugin. Contact the administrator of this site for help on getting the plugin updated.', 'Sorry, but you do not have the correct permissions to update the %s plugins. Contact the administrator of this site for help on getting the plugins updated.' ),
'return' => __( 'Return to Required Plugins Installer', $this->domain ),
'plugin_activated' => __( 'Plugin activated successfully.', $this->domain ),
'complete' => __( 'All plugins installed and activated successfully. %1$s', $this->domain ),
);
/** Annouce that the class is ready, and pass the object (for advanced use) */
do_action_ref_array( 'tgmpa_init', array( &$this ) );
/** When the rest of WP has loaded, kick-start the rest of the class */
add_action( 'init', array( &$this, 'init' ) );
}
/**
* Initialise the interactions between this class and WordPress.
*
* Hooks in three new methods for the class: admin_menu, notices and styles.
*
* @since 2.0.0
*
* @see TGM_Plugin_Activation::admin_menu()
* @see TGM_Plugin_Activation::notices()
* @see TGM_Plugin_Activation::styles()
*/
public function init() {
do_action( 'tgmpa_register' );
/** After this point, the plugins should be registered and the configuration set */
/** Proceed only if we have plugins to handle */
if ( $this->plugins ) {
$sorted = array(); // Prepare variable for sorting
foreach ( $this->plugins as $plugin )
$sorted[] = $plugin['name'];
array_multisort( $sorted, SORT_ASC, $this->plugins ); // Sort plugins alphabetically by name
add_action( 'admin_menu', array( &$this, 'admin_menu' ) );
add_action( 'admin_head', array( &$this, 'dismiss' ) );
add_filter( 'install_plugin_complete_actions', array( &$this, 'actions' ) );
/** Load admin bar in the header to remove flash when installing plugins */
if ( $this->is_tgmpa_page() ) {
remove_action( 'wp_footer', 'wp_admin_bar_render', 1000 );
remove_action( 'admin_footer', 'wp_admin_bar_render', 1000 );
add_action( 'wp_head', 'wp_admin_bar_render', 1000 );
add_action( 'admin_head', 'wp_admin_bar_render', 1000 );
}
if ( $this->has_notices ) {
add_action( 'admin_notices', array( &$this, 'notices' ) );
add_action( 'admin_init', array( &$this, 'admin_init' ), 1 );
add_action( 'admin_enqueue_scripts', array( &$this, 'thickbox' ) );
add_action( 'switch_theme', array( &$this, 'update_dismiss' ) );
}
/** Setup the force activation hook */
foreach ( $this->plugins as $plugin ) {
if ( isset( $plugin['force_activation'] ) && true === $plugin['force_activation'] ) {
add_action( 'admin_init', array( &$this, 'force_activation' ) );
break;
}
}
/** Setup the force deactivation hook */
foreach ( $this->plugins as $plugin ) {
if ( isset( $plugin['force_deactivation'] ) && true === $plugin['force_deactivation'] ) {
add_action( 'switch_theme', array( &$this, 'force_deactivation' ) );
break;
}
}
}
}
/**
* Handles calls to show plugin information via links in the notices.
*
* We get the links in the admin notices to point to the TGMPA page, rather
* than the typical plugin-install.php file, so we can prepare everything
* beforehand.
*
* WP doesn't make it easy to show the plugin information in the thickbox -
* here we have to require a file that includes a function that does the
* main work of displaying it, enqueue some styles, set up some globals and
* finally call that function before exiting.
*
* Down right easy once you know how...
*
* @since 2.1.0
*
* @global string $tab Used as iframe div class names, helps with styling
* @global string $body_id Used as the iframe body ID, helps with styling
* @return null Returns early if not the TGMPA page.
*/
public function admin_init() {
if ( ! $this->is_tgmpa_page() )
return;
if ( isset( $_REQUEST['tab'] ) && 'plugin-information' == $_REQUEST['tab'] ) {
require_once ABSPATH . 'wp-admin/includes/plugin-install.php'; // Need for install_plugin_information()
wp_enqueue_style( 'plugin-install' );
global $tab, $body_id;
$body_id = $tab = 'plugin-information';
install_plugin_information();
exit;
}
}
/**
* Enqueues thickbox scripts/styles for plugin info.
*
* Thickbox is not automatically included on all admin pages, so we must
* manually enqueue it for those pages.
*
* Thickbox is only loaded if the user has not dismissed the admin
* notice or if there are any plugins left to install and activate.
*
* @since 2.1.0
*/
public function thickbox() {
if ( ! get_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice', true ) )
add_thickbox();
}
/**
* Adds submenu page under 'Appearance' tab.
*
* This method adds the submenu page letting users know that a required
* plugin needs to be installed.
*
* This page disappears once the plugin has been installed and activated.
*
* @since 1.0.0
*
* @see TGM_Plugin_Activation::init()
* @see TGM_Plugin_Activation::install_plugins_page()
*/
public function admin_menu() {
// Make sure privileges are correct to see the page
if ( ! current_user_can( 'install_plugins' ) )
return;
$this->populate_file_path();
foreach ( $this->plugins as $plugin ) {
if ( ! is_plugin_active( $plugin['file_path'] ) ) {
add_submenu_page(
$this->parent_menu_slug, // Parent menu slug
$this->strings['page_title'], // Page title
$this->strings['menu_title'], // Menu title
'edit_theme_options', // Capability
$this->menu, // Menu slug
array( &$this, 'install_plugins_page' ) // Callback
);
break;
}
}
}
/**
* Echoes plugin installation form.
*
* This method is the callback for the admin_menu method function.
* This displays the admin page and form area where the user can select to install and activate the plugin.
*
* @since 1.0.0
*
* @return null Aborts early if we're processing a plugin installation action
*/
public function install_plugins_page() {
/** Store new instance of plugin table in object */
$plugin_table = new TGMPA_List_Table;
/** Return early if processing a plugin installation action */
if ( isset( $_POST[sanitize_key( 'action' )] ) && 'tgmpa-bulk-install' == $_POST[sanitize_key( 'action' )] && $plugin_table->process_bulk_actions() || $this->do_plugin_install() )
return;
?>
<div class="tgmpa wrap">
<?php screen_icon( apply_filters( 'tgmpa_default_screen_icon', 'themes' ) ); ?>
<h2><?php echo esc_html( get_admin_page_title() ); ?></h2>
<?php $plugin_table->prepare_items(); ?>
<?php if ( isset( $this->message ) ) echo wp_kses_post( $this->message ); ?>
<form id="tgmpa-plugins" action="" method="post">
<input type="hidden" name="tgmpa-page" value="<?php echo $this->menu; ?>" />
<?php $plugin_table->display(); ?>
</form>
</div>
<?php
}
/**
* Installs a plugin or activates a plugin depending on the hover
* link clicked by the user.
*
* Checks the $_GET variable to see which actions have been
* passed and responds with the appropriate method.
*
* Uses WP_Filesystem to process and handle the plugin installation
* method.
*
* @since 1.0.0
*
* @uses WP_Filesystem
* @uses WP_Error
* @uses WP_Upgrader
* @uses Plugin_Upgrader
* @uses Plugin_Installer_Skin
*
* @return boolean True on success, false on failure
*/
protected function do_plugin_install() {
/** All plugin information will be stored in an array for processing */
$plugin = array();
/** Checks for actions from hover links to process the installation */
if ( isset( $_GET[sanitize_key( 'plugin' )] ) && ( isset( $_GET[sanitize_key( 'tgmpa-install' )] ) && 'install-plugin' == $_GET[sanitize_key( 'tgmpa-install' )] ) ) {
check_admin_referer( 'tgmpa-install' );
$plugin['name'] = $_GET[sanitize_key( 'plugin_name' )]; // Plugin name
$plugin['slug'] = $_GET[sanitize_key( 'plugin' )]; // Plugin slug
$plugin['source'] = $_GET[sanitize_key( 'plugin_source' )]; // Plugin source
/** Pass all necessary information via URL if WP_Filesystem is needed */
$url = wp_nonce_url(
add_query_arg(
array(
'page' => $this->menu,
'plugin' => $plugin['slug'],
'plugin_name' => $plugin['name'],
'plugin_source' => $plugin['source'],
'tgmpa-install' => 'install-plugin',
),
admin_url( $this->parent_url_slug )
),
'tgmpa-install'
);
$method = ''; // Leave blank so WP_Filesystem can populate it as necessary
$fields = array( sanitize_key( 'tgmpa-install' ) ); // Extra fields to pass to WP_Filesystem
if ( false === ( $creds = request_filesystem_credentials( $url, $method, false, false, $fields ) ) )
return true;
if ( ! WP_Filesystem( $creds ) ) {
request_filesystem_credentials( $url, $method, true, false, $fields ); // Setup WP_Filesystem
return true;
}
require_once ABSPATH . 'wp-admin/includes/plugin-install.php'; // Need for plugins_api
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php'; // Need for upgrade classes
$api = plugins_api( 'plugin_information', array( 'slug' => $plugin['slug'], 'fields' => array( 'sections' => false ) ) );
if ( is_wp_error( $api ) )
wp_die( $this->strings['oops'] . var_dump( $api ) );
/** Set plugin source to WordPress API link if available */
if ( isset( $plugin['source'] ) && 'repo' == $plugin['source'] && isset( $api->download_link ) )
$plugin['source'] = $api->download_link;
/** Set type, based on whether the source starts with http:// or https:// */
$type = preg_match( '|^http(s)?://|', $plugin['source'] ) ? 'web' : 'upload';
/** Prep variables for Plugin_Installer_Skin class */
$title = sprintf( $this->strings['installing'], $plugin['name'] );
$url = add_query_arg( array( 'action' => 'install-plugin', 'plugin' => $plugin['slug'] ), 'update.php' );
if ( isset( $_GET['from'] ) )
$url .= add_query_arg( 'from', urlencode( stripslashes( $_GET['from'] ) ), $url );
$nonce = 'install-plugin_' . $plugin['slug'];
/** Prefix a default path to pre-packaged plugins */
$source = ( 'upload' == $type ) ? $this->default_path . $plugin['source'] : $plugin['source'];
/** Create a new instance of Plugin_Upgrader */
$upgrader = new Plugin_Upgrader( $skin = new Plugin_Installer_Skin( compact( 'type', 'title', 'url', 'nonce', 'plugin', 'api' ) ) );
/** Perform the action and install the plugin from the $source urldecode() */
$upgrader->install( $source );
/** Flush plugins cache so we can make sure that the installed plugins list is always up to date */
wp_cache_flush();
/** Only activate plugins if the config option is set to true */
if ( $this->is_automatic ) {
$plugin_activate = $upgrader->plugin_info(); // Grab the plugin info from the Plugin_Upgrader method
$activate = activate_plugin( $plugin_activate ); // Activate the plugin
$this->populate_file_path(); // Re-populate the file path now that the plugin has been installed and activated
if ( is_wp_error( $activate ) ) {
echo '<div id="message" class="error"><p>' . $activate->get_error_message() . '</p></div>';
echo '<p><a href="' . add_query_arg( 'page', $this->menu, admin_url( $this->parent_url_slug ) ) . '" title="' . esc_attr( $this->strings['return'] ) . '" target="_parent">' . __( 'Return to Required Plugins Installer', $this->domain ) . '</a></p>';
return true; // End it here if there is an error with automatic activation
}
else {
echo '<p>' . $this->strings['plugin_activated'] . '</p>';
}
}
/** Display message based on if all plugins are now active or not */
$complete = array();
foreach ( $this->plugins as $plugin ) {
if ( ! is_plugin_active( $plugin['file_path'] ) ) {
echo '<p><a href="' . add_query_arg( 'page', $this->menu, admin_url( $this->parent_url_slug ) ) . '" title="' . esc_attr( $this->strings['return'] ) . '" target="_parent">' . __( $this->strings['return'], $this->domain ) . '</a></p>';
$complete[] = $plugin;
break;
}
/** Nothing to store */
else {
$complete[] = '';
}
}
/** Filter out any empty entries */
$complete = array_filter( $complete );
/** All plugins are active, so we display the complete string */
if ( empty( $complete ) )
echo '<p>' . sprintf( $this->strings['complete'], '<a href="' . admin_url() . '" title="' . __( 'Return to the Dashboard', $this->domain ) . '">' . __( 'Return to the Dashboard', $this->domain ) . '</a>' ) . '</p>';
return true;
}
/** Checks for actions from hover links to process the activation */
elseif ( isset( $_GET[sanitize_key( 'plugin' )] ) && ( isset( $_GET[sanitize_key( 'tgmpa-activate' )] ) && 'activate-plugin' == $_GET[sanitize_key( 'tgmpa-activate' )] ) ) {
check_admin_referer( 'tgmpa-activate', 'tgmpa-activate-nonce' );
/** Populate $plugin array with necessary information */
$plugin['name'] = $_GET[sanitize_key( 'plugin_name' )];
$plugin['slug'] = $_GET[sanitize_key( 'plugin' )];
$plugin['source'] = $_GET[sanitize_key( 'plugin_source' )];
$plugin_data = get_plugins( '/' . $plugin['slug'] ); // Retrieve all plugins
$plugin_file = array_keys( $plugin_data ); // Retrieve all plugin files from installed plugins
$plugin_to_activate = $plugin['slug'] . '/' . $plugin_file[0]; // Match plugin slug with appropriate plugin file
$activate = activate_plugin( $plugin_to_activate ); // Activate the plugin
if ( is_wp_error( $activate ) ) {
echo '<div id="message" class="error"><p>' . $activate->get_error_message() . '</p></div>';
echo '<p><a href="' . add_query_arg( 'page', $this->menu, admin_url( $this->parent_url_slug ) ) . '" title="' . esc_attr( $this->strings['return'] ) . '" target="_parent">' . __( $this->strings['return'], $this->domain ) . '</a></p>';
return true; // End it here if there is an error with activation
}
else {
/** Make sure message doesn't display again if bulk activation is performed immediately after a single activation */
if ( ! isset( $_POST[sanitize_key( 'action' )] ) ) {
$msg = sprintf( __( 'The following plugin was activated successfully: %s.', $this->domain ), '<strong>' . $plugin['name'] . '</strong>' );
echo '<div id="message" class="updated"><p>' . $msg . '</p></div>';
}
}
}
return false;
}
/**
* Echoes required plugin notice.
*
* Outputs a message telling users that a specific plugin is required for
* their theme. If appropriate, it includes a link to the form page where
* users can install and activate the plugin.
*
* @since 1.0.0
*
* @global object $current_screen
* @return null Returns early if we're on the Install page
*/
public function notices() {
global $current_screen;
/** Remove nag on the install page */
if ( $this->is_tgmpa_page() )
return;
$installed_plugins = get_plugins(); // Retrieve a list of all the plugins
$this->populate_file_path();
$message = array(); // Store the messages in an array to be outputted after plugins have looped through
$install_link = false; // Set to false, change to true in loop if conditions exist, used for action link 'install'
$install_link_plural = false; // Flag for install link text, singular by default
$install_link_count = 0; // Used to determine plurality of install action link text
$activate_link = false; // Set to false, change to true in loop if conditions exist, used for action link 'activate'
$activate_link_plural = false; // Flag for action link text, singular by default
$activate_link_count = 0; // Used to determine plurality of activate action link text
foreach ( $this->plugins as $plugin ) {
/** If the plugin is installed and active, check for minimum version argument before moving forward */
if ( is_plugin_active( $plugin['file_path'] ) ) {
/** A minimum version has been specified */
if ( isset( $plugin['version'] ) ) {
if ( isset( $installed_plugins[$plugin['file_path']]['Version'] ) ) {
/** If the current version is less than the minimum required version, we display a message */
if ( version_compare( $installed_plugins[$plugin['file_path']]['Version'], $plugin['version'], '<' ) ) {
if ( current_user_can( 'install_plugins' ) )
$message['notice_ask_to_update'][] = $plugin['name'];
else
$message['notice_cannot_update'][] = $plugin['name'];
}
}
/** Can't find the plugin, so iterate to the next condition */
else {
continue;
}
}
/** No minimum version specified, so iterate over the plugin */
else {
continue;
}
}
/** Not installed */
if ( ! isset( $installed_plugins[$plugin['file_path']] ) ) {
$install_link = true; // We need to display the 'install' action link
$install_link_count++; // Increment the install link count
if ( current_user_can( 'install_plugins' ) ) {
if ( $plugin['required'] )
$message['notice_can_install_required'][] = $plugin['name'];
/** This plugin is only recommended */
else
$message['notice_can_install_recommended'][] = $plugin['name'];
}
/** Need higher privileges to install the plugin */
else {
$message['notice_cannot_install'][] = $plugin['name'];
}
}
/** Installed but not active */
elseif ( is_plugin_inactive( $plugin['file_path'] ) ) {
$activate_link = true; // We need to display the 'activate' action link
$activate_link_count++; // Increment the activate link count
if ( current_user_can( 'activate_plugins' ) ) {
if ( $plugin['required'] )
$message['notice_can_activate_required'][] = $plugin['name'];
/** This plugin is only recommended */
else {
$message['notice_can_activate_recommended'][] = $plugin['name'];
}
}
/** Need higher privileges to activate the plugin */
else {
$message['notice_cannot_activate'][] = $plugin['name'];
}
}
}
/** Only process the nag messages if the user has not dismissed them already */
if ( ! get_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice', true ) ) {
/** If we have notices to display, we move forward */
if ( ! empty( $message ) ) {
krsort( $message ); // Sort messages
$rendered = ''; // Display all nag messages as strings
/** Grab all plugin names */
foreach ( $message as $type => $plugin_groups ) {
$linked_plugin_groups = array();
/** Count number of plugins in each message group to calculate singular/plural message */
$count = count( $plugin_groups );
/** Loop through the plugin names to make the ones pulled from the .org repo linked */
foreach ( $plugin_groups as $plugin_group_single_name ) {
$external_url = $this->_get_plugin_data_from_name( $plugin_group_single_name, 'external_url' );
$source = $this->_get_plugin_data_from_name( $plugin_group_single_name, 'source' );
if ( $external_url && preg_match( '|^http(s)?://|', $external_url ) ) {
$linked_plugin_groups[] = '<a href="' . esc_url( $external_url ) . '" title="' . $plugin_group_single_name . '" target="_blank">' . $plugin_group_single_name . '</a>';
}
elseif ( ! $source || preg_match( '|^http://wordpress.org/extend/plugins/|', $source ) ) {
$url = add_query_arg(
array(
'tab' => 'plugin-information',
'plugin' => $this->_get_plugin_data_from_name( $plugin_group_single_name ),
'TB_iframe' => 'true',
'width' => '640',
'height' => '500',
),
admin_url( 'plugin-install.php' )
);
$linked_plugin_groups[] = '<a href="' . esc_url( $url ) . '" class="thickbox" title="' . $plugin_group_single_name . '">' . $plugin_group_single_name . '</a>';
}
else {
$linked_plugin_groups[] = $plugin_group_single_name; // No hyperlink
}
if ( isset( $linked_plugin_groups ) && (array) $linked_plugin_groups )
$plugin_groups = $linked_plugin_groups;
}
$last_plugin = array_pop( $plugin_groups ); // Pop off last name to prep for readability
$imploded = empty( $plugin_groups ) ? '<em>' . $last_plugin . '</em>' : '<em>' . ( implode( ', ', $plugin_groups ) . '</em> and <em>' . $last_plugin . '</em>' );
$rendered .= '<p>' . sprintf( translate_nooped_plural( $this->strings[$type], $count, $this->domain ), $imploded, $count ) . '</p>'; // All messages now stored
}
/** Get the sum of plugins and if it's greater than one, we need plural action links */
if ( 1 < $install_link_count )
$install_link_plural = true;
if ( 1 < $activate_link_count )
$activate_link_plural = true;
/** Determine plurality of action link text */
$install_plurality = $install_link_plural ? 'Begin installing plugins' : 'Begin installing plugin';
$activate_plurality = $activate_link_plural ? 'Activate installed plugins' : 'Activate installed plugin';
/** Setup variables to determine if action links are needed */
$show_install_link = $install_link ? '<a href="' . add_query_arg( 'page', $this->menu, admin_url( $this->parent_url_slug ) ) . '">' . __( $install_plurality, $this->domain ) . '</a>' : '';
$show_activate_link = $activate_link ? '<a href="' . admin_url( 'plugins.php' ) . '">' . __( $activate_plurality, $this->domain ) . '</a>' : '';
/** Define all of the action links */
$action_links = apply_filters(
'tgmpa_notice_action_links',
array(
'install' => ( current_user_can( 'install_plugins' ) ) ? $show_install_link : '',
'activate' => ( current_user_can( 'activate_plugins' ) ) ? $show_activate_link : '',
'dismiss' => '<a class="dismiss-notice" href="' . add_query_arg( 'tgmpa-dismiss', 'dismiss_admin_notices' ) . '" target="_parent">' . __( 'Dismiss this notice', $this->domain ) . '</a>',
)
);
$action_links = array_filter( $action_links ); // Remove any empty array items
if ( $action_links )
$rendered .= '<p>' . implode( ' | ', $action_links ) . '</p>';
/** Register the nag messages and prepare them to be processed */
add_settings_error( 'tgmpa', 'tgmpa', $rendered, 'updated' );
}
}
/** Admin options pages already output settings_errors, so this is to avoid duplication */
if ( 'options-general' !== $current_screen->parent_base )
settings_errors( 'tgmpa' );
}
/**
* Add dismissable admin notices.
*
* Appends a link to the admin nag messages. If clicked, the admin notice disappears and no longer is visible to users.
*
* @since 2.1.0
*/
public function dismiss() {
if ( isset( $_GET[sanitize_key( 'tgmpa-dismiss' )] ) )
update_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice', 1 );
}
/**
* Add individual plugin to our collection of plugins.
*
* If the required keys are not set, the plugin is not added.
*
* @since 2.0.0
*
* @param array $plugin Array of plugin arguments.
*/
public function register( $plugin ) {
if ( ! isset( $plugin['slug'] ) || ! isset( $plugin['name'] ) )
return;
$this->plugins[] = $plugin;
}
/**
* Amend default configuration settings.
*
* @since 2.0.0
*
* @param array $config
*/
public function config( $config ) {
$keys = array( 'default_path', 'parent_menu_slug', 'parent_url_slug', 'domain', 'has_notices', 'menu', 'is_automatic', 'message', 'strings' );
foreach ( $keys as $key ) {
if ( isset( $config[$key] ) ) {
if ( is_array( $config[$key] ) ) {
foreach ( $config[$key] as $subkey => $value )
$this->{$key}[$subkey] = $value;
} else {
$this->$key = $config[$key];
}
}
}
}
/**
* Amend action link after plugin installation.
*
* @since 2.0.0
*
* @param array $install_actions Existing array of actions
* @return array Amended array of actions
*/
public function actions( $install_actions ) {
/** Remove action links on the TGMPA install page */
if ( $this->is_tgmpa_page() )
return false;
return $install_actions;
}
/**
* Set file_path key for each installed plugin.
*
* @since 2.1.0
*/
public function populate_file_path() {
/** Add file_path key for all plugins */
foreach ( $this->plugins as $plugin => $values )
$this->plugins[$plugin]['file_path'] = $this->_get_plugin_basename_from_slug( $values['slug'] );
}
/**
* Helper function to extract the file path of the plugin file from the
* plugin slug, if the plugin is installed.
*
* @since 2.0.0
*
* @param string $slug Plugin slug (typically folder name) as provided by the developer
* @return string Either file path for plugin if installed, or just the plugin slug
*/
protected function _get_plugin_basename_from_slug( $slug ) {
$keys = array_keys( get_plugins() );
foreach ( $keys as $key ) {
if ( preg_match( '|^' . $slug .'|', $key ) )
return $key;
}
return $slug;
}
/**
* Retrieve plugin data, given the plugin name.
*
* Loops through the registered plugins looking for $name. If it finds it,
* it returns the $data from that plugin. Otherwise, returns false.
*
* @since 2.1.0
*
* @param string $name Name of the plugin, as it was registered
* @param string $data Optional. Array key of plugin data to return. Default is slug
* @return string|boolean Plugin slug if found, false otherwise.
*/
protected function _get_plugin_data_from_name( $name, $data = 'slug' ) {
foreach ( $this->plugins as $plugin => $values ) {
if ( $name == $values['name'] && isset( $values[$data] ) )
return $values[$data];
}
return false;
}
/**
* Determine if we're on the TGMPA Install page.
*
* We use $current_screen when it is available, and a slightly less ideal
* conditional when it isn't (like when displaying the plugin information
* thickbox).
*
* @since 2.1.0
*
* @global object $current_screen
* @return boolean True when on the TGMPA page, false otherwise.
*/
protected function is_tgmpa_page() {
global $current_screen;
if ( ! is_null( $current_screen ) && $this->parent_menu_slug == $current_screen->parent_file && isset( $_GET['page'] ) && $this->menu === $_GET['page'] )
return true;
if ( isset( $_GET['page'] ) && $this->menu === $_GET['page'] )
return true;
return false;
}
/**
* Delete dismissable nag option when theme is switched.
*
* This ensures that the user is again reminded via nag of required
* and/or recommended plugins if they re-activate the theme.
*
* @since 2.1.1
*/
public function update_dismiss() {
delete_user_meta( get_current_user_id(), 'tgmpa_dismissed_notice' );
}
/**
* Forces plugin activation if the parameter 'force_activation' is
* set to true.
*
* This allows theme authors to specify certain plugins that must be
* active at all times while using the current theme.
*
* Please take special care when using this parameter as it has the
* potential to be harmful if not used correctly. Setting this parameter
* to true will not allow the specified plugin to be deactivated unless
* the user switches themes.
*
* @since 2.2.0
*/
public function force_activation() {
/** Set file_path parameter for any installed plugins */
$this->populate_file_path();
$installed_plugins = get_plugins();
foreach ( $this->plugins as $plugin ) {
/** Oops, plugin isn't there so iterate to next condition */
if ( isset( $plugin['force_activation'] ) && $plugin['force_activation'] && ! isset( $installed_plugins[$plugin['file_path']] ) )
continue;
/** There we go, activate the plugin */
elseif ( isset( $plugin['force_activation'] ) && $plugin['force_activation'] && is_plugin_inactive( $plugin['file_path'] ) )
activate_plugin( $plugin['file_path'] );
}
}
/**
* Forces plugin deactivation if the parameter 'force_deactivation'
* is set to true.
*
* This allows theme authors to specify certain plugins that must be
* deactived upon switching from the current theme to another.
*
* Please take special care when using this parameter as it has the
* potential to be harmful if not used correctly.
*
* @since 2.2.0
*/
public function force_deactivation() {
/** Set file_path parameter for any installed plugins */
$this->populate_file_path();
foreach ( $this->plugins as $plugin ) {
/** Only proceed forward if the paramter is set to true and plugin is active */
if ( isset( $plugin['force_deactivation'] ) && $plugin['force_deactivation'] && is_plugin_active( $plugin['file_path'] ) )
deactivate_plugins( $plugin['file_path'] );
}
}
}
}
/** Create a new instance of the class */
new TGM_Plugin_Activation;
if ( ! function_exists( 'tgmpa' ) ) {
/**
* Helper function to register a collection of required plugins.
*
* @since 2.0.0
* @api
*
* @param array $plugins An array of plugin arrays
* @param array $config Optional. An array of configuration values
*/
function tgmpa( $plugins, $config = array() ) {
foreach ( $plugins as $plugin )
TGM_Plugin_Activation::$instance->register( $plugin );
if ( $config )
TGM_Plugin_Activation::$instance->config( $config );
}
}
/**
* WP_List_Table isn't always available. If it isn't available,
* we load it here.
*
* @since 2.2.0
*/
if ( ! class_exists( 'WP_List_Table' ) )
require_once( ABSPATH . 'wp-admin/includes/class-wp-list-table.php' );
if ( ! class_exists( 'TGMPA_List_Table' ) ) {
/**
* List table class for handling plugins.
*
* Extends the WP_List_Table class to provide a future-compatible
* way of listing out all required/recommended plugins.