Viewing file:  class-yoast-plugin-conflict.php (7.79 KB) -rw-rw-rw-
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<?php
/**
* @package WPSEO\Admin
* @since 1.7.0
*/
/**
* Base class for handling plugin conflicts.
*/
class Yoast_Plugin_Conflict {
/**
* The plugins must be grouped per section.
*
* It's possible to check for each section if there are conflicting plugin
*
* @var array
*/
protected $plugins = array();
/**
* All the current active plugins will be stored in this private var
*
* @var array
*/
protected $all_active_plugins = array();
/**
* After searching for active plugins that are in $this->plugins the active plugins will be stored in this
* property
*
* @var array
*/
protected $active_plugins = array();
/**
* Property for holding instance of itself
*
* @var Yoast_Plugin_Conflict
*/
protected static $instance;
/**
* For the use of singleton pattern. Create instance of itself and return his instance
*
* @param string $class_name Give the classname to initialize. If classname is false (empty) it will use it's own __CLASS__
*
* @return Yoast_Plugin_Conflict
*/
public static function get_instance( $class_name = '' ) {
if ( is_null( self::$instance ) ) {
if ( ! is_string( $class_name ) || $class_name === '' ) {
$class_name = __CLASS__;
}
self::$instance = new $class_name();
}
return self::$instance;
}
/**
* Setting instance, all active plugins and search for active plugins
*
* Protected constructor to prevent creating a new instance of the
* *Singleton* via the `new` operator from outside of this class.
*
*/
protected function __construct() {
// Set active plugins
$this->all_active_plugins = get_option( 'active_plugins' );
// Search for active plugins
$this->search_active_plugins();
}
/**
* Check if there are conflicting plugins for given $plugin_section
*
* @param string $plugin_section
*
* @return bool
*/
public function check_for_conflicts( $plugin_section ) {
static $sections_checked;
if ( $sections_checked == null ) {
$sections_checked = array();
}
if ( ! in_array( $plugin_section, $sections_checked ) ) {
$sections_checked[] = $plugin_section;
$has_conflicts = ( ! empty( $this->active_plugins[ $plugin_section ] ) );
return $has_conflicts;
}
else {
return false;
}
}
/**
* Get plugin name from file
*
* @param string $plugin
*
* @return bool
*/
private function get_plugin_name( $plugin ) {
$plugin_details = get_plugin_data( ABSPATH . '/wp-content/plugins/' . $plugin );
if ( $plugin_details['Name'] != '' ) {
return $plugin_details['Name'];
}
return false;
}
/**
* Getting all the conflicting plugins and return them as a string.
*
* This method will loop through all conflicting plugins to get the details of each plugin. The plugin name
* will be taken from the details to parse a comma separated string, which can be use for by example a notice
*
* @param string $plugin_section
*
* @return string
*/
public function get_conflicting_plugins_as_string( $plugin_section ) {
if ( ! function_exists( 'get_plugin_data' ) ) {
require_once( ABSPATH . '/wp-admin/includes/plugin.php' );
}
// Getting the active plugins by given section
$plugins = $this->active_plugins[ $plugin_section ];
$plugin_names = array();
foreach ( $plugins as $plugin ) {
if ( $name = $this->get_plugin_name( $plugin ) ) {
$plugin_names[] = '<em>' . $name . '</em>';
}
}
unset( $plugins, $plugin );
if ( ! empty( $plugin_names ) ) {
return implode( ' & ', $plugin_names );
}
}
/**
* Checks for given $plugin_sections for conflicts
*
* @param array $plugin_sections
*/
public function check_plugin_conflicts( $plugin_sections ) {
foreach ( $plugin_sections as $plugin_section => $readable_plugin_section ) {
// Check for conflicting plugins and show error if there are conflicts
if ( $this->check_for_conflicts( $plugin_section ) ) {
$this->set_error( $plugin_section, $readable_plugin_section );
}
}
}
/**
* Setting an error on the screen
*
* @param string $plugin_section
* @param string $readable_plugin_section This is the value for the translation
*/
protected function set_error( $plugin_section, $readable_plugin_section ) {
$plugins_as_string = $this->get_conflicting_plugins_as_string( $plugin_section );
$error_message = '<h3>' . __( 'Warning!', 'wordpress-seo' ) . '</h3>';
/* translators: %s: 'Facebook & Open Graph' plugin name(s) of possibly conflicting plugin(s) */
$error_message .= '<p>' . sprintf( __( 'The %s plugin(s) might cause issues when used in conjunction with WordPress SEO by Yoast.', 'wordpress-seo' ), $plugins_as_string ) . '</p>';
$error_message .= sprintf( $readable_plugin_section, $plugins_as_string ) . '<br/><br/>';
$error_message .= '<p><strong>' . __( 'Recommended solution', 'wordpress-seo' ) . '</strong><br/>';
/* translators: %s: 'Facebook & Open Graph' plugin name(s) of possibly conflicting plugin(s) */
$error_message .= sprintf( __( 'We recommend you deactivate %s and have another look at your WordPress SEO configuration using the button above.', 'wordpress-seo' ), $plugins_as_string ) . '</p>';
foreach ( $this->active_plugins[ $plugin_section ] as $plugin_file ) {
/* translators: %s: 'Facebook' plugin name of possibly conflicting plugin */
$error_message .= '<a target="_blank" class="button-primary" href="' . wp_nonce_url( 'plugins.php?action=deactivate&plugin=' . $plugin_file . '&plugin_status=all', 'deactivate-plugin_' . $plugin_file ) . '">' . sprintf( __( 'Deactivate %s', 'wordpress-seo' ), $this->get_plugin_name( $plugin_file ) ) . '</a> ';
}
$error_message .= '<p class="alignright"><small>' . __( 'This warning is generated by WordPress SEO by Yoast.', 'wordpress-seo' ) . '</small></p><div class="clear"></div>';
// Add the message to the notifications center
Yoast_Notification_Center::get()->add_notification( new Yoast_Notification( $error_message, array( 'type' => 'error' ) ) );
}
/**
* Loop through the $this->plugins to check if one of the plugins is active.
*
* This method will store the active plugins in $this->active_plugins.
*/
protected function search_active_plugins() {
foreach ( $this->plugins as $plugin_section => $plugins ) {
$this->check_plugins_active( $plugins, $plugin_section );
}
}
/**
* Loop through plugins and check if each plugin is active
*
* @param array $plugins
* @param string $plugin_section
*/
protected function check_plugins_active( $plugins, $plugin_section ) {
foreach ( $plugins as $plugin ) {
if ( $this->check_plugin_is_active( $plugin ) ) {
$this->add_active_plugin( $plugin_section, $plugin );
}
}
}
/**
* Check if given plugin exists in array with all_active_plugins
*
* @param string $plugin
*
* @return bool
*/
protected function check_plugin_is_active( $plugin ) {
return in_array( $plugin, $this->all_active_plugins );
}
/**
* Add plugin to the list of active plugins.
*
* This method will check first if key $plugin_section exists, if not it will create an empty array
* If $plugin itself doesn't exist it will be added.
*
* @param string $plugin_section
* @param string $plugin
*/
protected function add_active_plugin( $plugin_section, $plugin ) {
if ( ! array_key_exists( $plugin_section, $this->active_plugins ) ) {
$this->active_plugins[ $plugin_section ] = array();
}
if ( ! in_array( $plugin, $this->active_plugins[ $plugin_section ] ) ) {
$this->active_plugins[ $plugin_section ][] = $plugin;
}
}
/**
* Search in $this->plugins for the given $plugin
*
* If there is a result it will return the plugin category
*
* @param string $plugin
*
* @return int|string
*/
protected function find_plugin_category( $plugin ) {
foreach ( $this->plugins as $plugin_section => $plugins ) {
if ( in_array( $plugin, $plugins ) ) {
return $plugin_section;
}
}
}
}
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