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<?php
/**
* Class that runs checks before loading possibly incompatible code.
* Checks if incompatible plugins are already active and if so, self deactivate (this plugin).
* Checks for legacy plugins and deactivates them in favor of self (this plugin).
* Ensures that only a single notice is displayed per plugin.
*
* @package HostGatorWordPressPlugin
*/
namespace HostGator;
/**
* Class NDF_Plugin_Compat_Check
*
* This class is responsible for performing basic checks to see if there are other plugins that would conflict with this one.
*/
class NFD_Plugin_Compat_Check {
/**
* A reference to the main plugin file (relative to plugins dir) or plugin slug
*
* @var string
*/
public $slug;
/**
* Plugin name
*
* @var string
*/
public $name = '';
/**
* Global list of plugins with associated error (to prevent duplicate notices)
*
* conflict {
* plugin: slug,
* error: WP_Error
* }
*
* @var array
*/
public $conflicts;
/**
* Newfold incompatibe plugins
* Don't allow this plugin to be installed while these are active.
* Deactivate this on activation if incompatible plugin is found.
*
* @var array
*/
public $incompatible_plugins = array();
/**
* Newfold legacy plugins
* If active when this plugin activates, deactivate legacy plugin to avoid conflict.
* Deactivate legacy on activation of this.
*
* @var array
*/
public $legacy_plugins = array();
/**
* Setup our class properties
*
* @param string $file Plugin file
*/
public function __construct( $file ) {
require_once ABSPATH . '/wp-admin/includes/plugin.php';
// require_once ABSPATH . '/wp-includes/option.php';
$this->slug = $this->get_plugin_slug( $file );
$this->name = $this->get_plugin_name( $file );
$this->conflicts = get_option( 'nfd_plugins_compat_check_conflicts', array() );
}
/**
* Get the plugin name from the plugin file headers
*
* @param string $file Plugin file
* @return string
*/
public function get_plugin_name( $file ) {
$plugin = get_file_data( $file, array( 'name' => 'Plugin Name' ) );
return isset( $plugin['name'] ) ? $plugin['name'] : '';
}
/**
* Get the plugin slug from the plugin path
*
* @param string $file Plugin file
* @return string
*/
public function get_plugin_slug( $file ) {
$wp = ABSPATH . 'wp-content/plugins/';
if ( strpos( $file, $wp ) === 0 ) {
$file = substr( $file, strlen( $wp ) );
}
return $file;
}
/**
* Check all our plugin requirements.
* Displays an admin notice and deactivates the plugin if all requirements are not met.
*/
public function check_plugin_requirements() {
if ( ! empty( $this->incompatible_plugins ) ) {
$this->check_incompatible_plugins();
// Incompatible plugin error
if ( $this->has_errors() ) {
// Suppress 'Plugin Activated' notice
unset( $_GET['activate'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
$this->deactivate();
add_action( 'admin_notices', array( $this, 'admin_notices' ) );
// Fail check, disable self
return false;
}
}
if ( ! empty( $this->legacy_plugins ) ) {
$this->check_legacy_plugins();
// Legacy plugin error
if ( $this->has_errors() ) {
// Suppress 'Plugin Activated' notice
unset( $_GET['activate'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
$this->deactivate();
add_action( 'admin_notices', array( $this, 'admin_notices' ) );
// Pass check, but disable other plugin
return true;
}
}
// Pre-existing conflict found
// and the errors are loaded from option without displaying the notice yet
if ( $this->has_errors() ) {
add_action( 'admin_notices', array( $this, 'admin_notices' ) );
}
// Pass check, enable self
return true;
}
/**
* Check if a incompatible plugin is active.
*/
public function check_incompatible_plugins() {
foreach ( $this->incompatible_plugins as $incompatible_name => $incompatible_file ) {
$conflict_plugins = array_column( $this->conflicts, 'slug' );
if ( function_exists( 'is_plugin_active' ) && is_plugin_active( $incompatible_file ) && ! in_array( $this->slug, $conflict_plugins, true ) ) {
$error = new \WP_Error();
$error->add(
'nfd_plugin_incompatible',
sprintf(
/* translators: 1: plugin name 2: incompatible plugin name */
__( '"%1$s" has self-deactivated. It is incompatible with "%2$s".', 'wp-plugin-hostgator' ),
$this->name,
$incompatible_name
)
);
$this->conflicts[] = array(
'slug' => $this->slug,
'source' => $this->slug,
'error' => $error,
);
update_option( 'nfd_plugins_compat_check_conflicts', $this->conflicts );
}
}
}
/**
* Check if a legacy plugin is active.
*/
public function check_legacy_plugins() {
foreach ( $this->legacy_plugins as $legacy_name => $legacy_file ) {
$conflict_plugins = array_column( $this->conflicts, 'slug' );
if ( function_exists( 'is_plugin_active' ) && is_plugin_active( $legacy_file ) && ! in_array( $legacy_file, $conflict_plugins, true ) ) {
$error = new \WP_Error();
$error->add(
'nfd_plugin_legacy',
sprintf(
/* translators: 1: legacy plugin name 2: plugin name */
__( '"%1$s" has been deactivated. It is incompatible with "%2$s".', 'wp-plugin-hostgator' ),
$legacy_name,
$this->name
)
);
$this->conflicts[] = array(
'slug' => $legacy_file,
'source' => $this->slug,
'error' => $error,
);
update_option( 'nfd_plugins_compat_check_conflicts', $this->conflicts );
}
}
}
/**
* Check if any errors were encountered during our plugin checks
*
* @return bool
*/
public function has_errors() {
foreach ( $this->conflicts as $conflict ) {
if ( $conflict['source'] === $this->slug ) {
return true;
}
}
return false;
}
/**
* Deactivate the plugin
*/
public function deactivate() {
$conflict_plugins = array_column( $this->conflicts, 'slug' );
if ( function_exists( 'deactivate_plugins' ) ) {
deactivate_plugins( $conflict_plugins );
}
}
/**
* Display error messages in the admin
*/
public function admin_notices() {
$conflict_errors = array_column( $this->conflicts, 'error' );
foreach ( $conflict_errors as $error ) {
if ( \is_wp_error( $error ) ) {
echo '<div class="notice notice-error is-dismissible">';
echo '<p>' . esc_html( $error->get_error_message() ) . '</p>';
echo '</div>';
}
}
delete_option( 'nfd_plugins_compat_check_conflicts' );
}
}