<?php

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if (!defined('UPDRAFTCENTRAL_CLIENT_DIR')) die('No access.');

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/**

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* Handles UpdraftCentral Plugin Commands which basically handles

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* the installation and activation of a plugin

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*/

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class UpdraftCentral_Plugin_Commands extends UpdraftCentral_Commands {

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private $switched = false;

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/**

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* Function that gets called before every action

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*

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* @param string $command a string that corresponds to UDC command to call a certain method for this class.

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* @param array $data an array of data post or get fields

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* @param array $extra_info extrainfo use in the udrpc_action, e.g. user_id

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*

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* link to udrpc_action main function in class UpdraftCentral_Listener

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*/

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public function _pre_action($command, $data, $extra_info) {// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- This function is called from listner.php and $extra_info is being sent.

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// Here we assign the current blog_id to a variable $blog_id

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$blog_id = get_current_blog_id();

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if (!empty($data['site_id'])) $blog_id = $data['site_id'];

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if (function_exists('switch_to_blog') && is_multisite() && $blog_id) {

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$this->switched = switch_to_blog($blog_id);

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}

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}

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/**

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* Function that gets called after every action

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*

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* @param string $command a string that corresponds to UDC command to call a certain method for this class.

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* @param array $data an array of data post or get fields

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* @param array $extra_info extrainfo use in the udrpc_action, e.g. user_id

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*

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* link to udrpc_action main function in class UpdraftCentral_Listener

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*/

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public function _post_action($command, $data, $extra_info) {// phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable

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// Here, we're restoring to the current (default) blog before we switched

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if ($this->switched) restore_current_blog();

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}

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/**

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* Constructor

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*/

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public function __construct() {

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$this->_admin_include('plugin.php', 'file.php', 'template.php', 'class-wp-upgrader.php', 'plugin-install.php', 'update.php');

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}

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/**

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* Installs and activates a plugin through upload

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*

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* @param array $params Parameter array containing information pertaining the currently uploaded plugin

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* @return array Contains the result of the current process

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*/

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public function upload_plugin($params) {

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return $this->process_chunk_upload($params, 'plugin');

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}

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/**

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* Checks whether the plugin is currently installed and activated.

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*

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* @param array $query Parameter array containing the name of the plugin to check

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* @return array Contains the result of the current process

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*/

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public function is_plugin_installed($query) {

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if (!isset($query['plugin']))

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return $this->_generic_error_response('plugin_name_required');

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$result = $this->_get_plugin_info($query);

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return $this->_response($result);

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}

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/**

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* Applies currently requested action for plugin processing

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*

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* @param string $action The action to apply (e.g. activate or install)

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* @param array $query Parameter array containing information for the currently requested action

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*

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* @return array

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*/

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private function _apply_plugin_action($action, $query) {

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$result = array();

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switch ($action) {

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case 'activate':

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case 'network_activate':

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$info = $this->_get_plugin_info($query);

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if ($info['installed']) {

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if (is_multisite() && 'network_activate' === $action) {

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$activate = activate_plugin($info['plugin_path'], '', true);

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} else {

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$activate = activate_plugin($info['plugin_path']);

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}

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if (is_wp_error($activate)) {

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$result = $this->_generic_error_response('generic_response_error', array(

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'plugin' => $query['plugin'],

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'error_code' => 'generic_response_error',

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'error_message' => $activate->get_error_message(),

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'info' => $this->_get_plugin_info($query)

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));

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} else {

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$result = array('activated' => true, 'info' => $this->_get_plugin_info($query));

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}

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} else {

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$result = $this->_generic_error_response('plugin_not_installed', array(

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'plugin' => $query['plugin'],

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'error_code' => 'plugin_not_installed',

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'error_message' => __('The plugin you wish to activate is either not installed or has been removed recently.', 'updraftplus'),

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'info' => $info

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));

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}

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break;

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case 'deactivate':

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case 'network_deactivate':

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$info = $this->_get_plugin_info($query);

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if ($info['active']) {

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if (is_multisite() && 'network_deactivate' === $action) {

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deactivate_plugins($info['plugin_path'], false, true);

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} else {

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deactivate_plugins($info['plugin_path']);

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}

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if (!is_plugin_active($info['plugin_path'])) {

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$result = array('deactivated' => true, 'info' => $this->_get_plugin_info($query));

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} else {

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$result = $this->_generic_error_response('deactivate_plugin_failed', array(

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'plugin' => $query['plugin'],

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'error_code' => 'deactivate_plugin_failed',

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'error_message' => __('There appears to be a problem deactivating the intended plugin. Please kindly check your permission and try again.', 'updraftplus'),

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'info' => $this->_get_plugin_info($query)

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));

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}

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} else {

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$result = $this->_generic_error_response('not_active', array(

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'plugin' => $query['plugin'],

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'error_code' => 'not_active',

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'error_message' => __('The plugin you wish to deactivate is currently not active or is already deactivated.', 'updraftplus'),

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'info' => $info

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));

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}

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break;

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case 'install':

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$api = plugins_api('plugin_information', array(

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'slug' => $query['slug'],

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'fields' => array(

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'short_description' => false,

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'sections' => false,

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'requires' => false,

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'rating' => false,

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'ratings' => false,

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'downloaded' => false,

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'last_updated' => false,

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'added' => false,

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'tags' => false,

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'compatibility' => false,

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'homepage' => false,

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'donate_link' => false,

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)

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));

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$info = $this->_get_plugin_info($query);

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if (is_wp_error($api)) {

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$result = $this->_generic_error_response('generic_response_error', array(

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'plugin' => $query['plugin'],

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'error_code' => 'generic_response_error',

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'error_message' => $api->get_error_message(),

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'info' => $info

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));

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} else {

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$installed = $info['installed'];

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$error_code = $error_message = '';

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if (!$installed) {

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// WP < 3.7

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if (!class_exists('Automatic_Upgrader_Skin')) include_once(dirname(dirname(__FILE__)).'/classes/class-automatic-upgrader-skin.php');

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$skin = new Automatic_Upgrader_Skin();

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$upgrader = new Plugin_Upgrader($skin);

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$download_link = $api->download_link;

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$installed = $upgrader->install($download_link);

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if (is_wp_error($installed)) {

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$error_code = $installed->get_error_code();

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$error_message = $installed->get_error_message();

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} elseif (is_wp_error($skin->result)) {

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$error_code = $skin->result->get_error_code();

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$error_message = $skin->result->get_error_message();

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$error_data = $skin->result->get_error_data($error_code);

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if (!empty($error_data)) {

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if (is_array($error_data)) $error_data = json_encode($error_data);

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$error_message .= ' '.$error_data;

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}

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} elseif (is_null($installed) || !$installed) {

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global $wp_filesystem;

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$upgrade_messages = $skin->get_upgrade_messages();

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if (!class_exists('WP_Filesystem_Base')) include_once(ABSPATH.'/wp-admin/includes/class-wp-filesystem-base.php');

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// Pass through the error from WP_Filesystem if one was raised.

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if ($wp_filesystem instanceof WP_Filesystem_Base && is_wp_error($wp_filesystem->errors) && $wp_filesystem->errors->get_error_code()) {

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$error_code = $wp_filesystem->errors->get_error_code();

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$error_message = $wp_filesystem->errors->get_error_message();

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} elseif (!empty($upgrade_messages)) {

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// We're only after for the last feedback that we received from the install process. Mostly,

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// that is where the last error has been inserted.

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$messages = $skin->get_upgrade_messages();

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$error_code = 'install_failed';

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$error_message = end($messages);

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} else {

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$error_code = 'unable_to_connect_to_filesystem';

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$error_message = __('Unable to connect to the filesystem. Please confirm your credentials.');

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}

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}

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}

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if (!$installed || is_wp_error($installed)) {

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$result = $this->_generic_error_response('plugin_install_failed', array(

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'plugin' => $query['plugin'],

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'error_code' => $error_code,

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'error_message' => $error_message,

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'info' => $this->_get_plugin_info($query)

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));

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} else {

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$result = array('installed' => true, 'info' => $this->_get_plugin_info($query));

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}

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}

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break;

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}

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return $result;

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}

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/**

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* Preloads the submitted credentials to the global $_POST variable

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*

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* @param array $query Parameter array containing information for the currently requested action

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*/

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private function _preload_credentials($query) {

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if (!empty($query) && isset($query['filesystem_credentials'])) {

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parse_str($query['filesystem_credentials'], $filesystem_credentials);

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if (is_array($filesystem_credentials)) {

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foreach ($filesystem_credentials as $key => $value) {

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// Put them into $_POST, which is where request_filesystem_credentials() checks for them.

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$_POST[$key] = $value;

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}

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}

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}

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}

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/**

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* Checks whether we have the required fields submitted and the user has

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* the capabilities to execute the requested action

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*

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* @param array $query The submitted information

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* @param array $fields The required fields to check

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* @param array $capabilities The capabilities to check and validate

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*

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* @return array|string

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*/

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private function _validate_fields_and_capabilities($query, $fields, $capabilities) {

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$error = '';

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if (!empty($fields)) {

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for ($i=0; $i<count($fields); $i++) {

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$field = $fields[$i];

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if (!isset($query[$field])) {

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if ('keyword' === $field) {

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$error = $this->_generic_error_response('keyword_required');

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} else {

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$error = $this->_generic_error_response('plugin_'.$query[$field].'_required');

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}

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break;

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}

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}

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}

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if (empty($error) && !empty($capabilities)) {

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for ($i=0; $i<count($capabilities); $i++) {

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if (!current_user_can($capabilities[$i])) {

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$error = $this->_generic_error_response('plugin_insufficient_permission');

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break;

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}

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}

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}

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return $error;

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}

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[297] Fix | Delete

/**

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* Activates the plugin

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*

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* @param array $query Parameter array containing the name of the plugin to activate

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* @return array Contains the result of the current process

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*/

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public function activate_plugin($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('plugin'), array('activate_plugins'));

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if (!empty($error)) {

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return $error;

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}

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$action = 'activate';

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if (!empty($query['multisite']) && (bool) $query['multisite']) $action = 'network_'.$action;

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$result = $this->_apply_plugin_action($action, $query);

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if (empty($result['activated'])) {

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return $result;

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}

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return $this->_response($result);

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}

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[321] Fix | Delete

/**

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* Deactivates the plugin

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*

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* @param array $query Parameter array containing the name of the plugin to deactivate

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* @return array Contains the result of the current process

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*/

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public function deactivate_plugin($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('plugin'), array('activate_plugins'));

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if (!empty($error)) {

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return $error;

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}

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$action = 'deactivate';

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if (!empty($query['multisite']) && (bool) $query['multisite']) $action = 'network_'.$action;

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$result = $this->_apply_plugin_action($action, $query);

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if (empty($result['deactivated'])) {

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return $result;

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}

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return $this->_response($result);

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}

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[345] Fix | Delete

/**

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* Download, install and activates the plugin

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*

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* @param array $query Parameter array containing the filesystem credentials entered by the user along with the plugin name and slug

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* @return array Contains the result of the current process

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*/

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public function install_activate_plugin($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('plugin', 'slug'), array('install_plugins', 'activate_plugins'));

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if (!empty($error)) {

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return $error;

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}

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$this->_preload_credentials($query);

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$result = $this->_apply_plugin_action('install', $query);

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if (!empty($result['installed']) && $result['installed']) {

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$action = 'activate';

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if (!empty($query['multisite']) && (bool) $query['multisite']) $action = 'network_'.$action;

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[365] Fix | Delete

$result = $this->_apply_plugin_action($action, $query);

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if (empty($result['activated'])) {

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return $result;

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}

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} else {

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return $result;

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}

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[373] Fix | Delete

return $this->_response($result);

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}

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[376] Fix | Delete

/**

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* Download, install the plugin

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*

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* @param array $query Parameter array containing the filesystem credentials entered by the user along with the plugin name and slug

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* @return array Contains the result of the current process

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*/

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public function install_plugin($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('plugin', 'slug'), array('install_plugins'));

[385] Fix | Delete

if (!empty($error)) {

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return $error;

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}

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$this->_preload_credentials($query);

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[391] Fix | Delete

$result = $this->_apply_plugin_action('install', $query);

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if (empty($result['installed'])) {

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return $result;

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}

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[396] Fix | Delete

return $this->_response($result);

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}

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[399] Fix | Delete

/**

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* Uninstall/delete the plugin

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*

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* @param array $query Parameter array containing the filesystem credentials entered by the user along with the plugin name and slug

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* @return array Contains the result of the current process

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*/

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public function delete_plugin($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('plugin'), array('delete_plugins'));

[408] Fix | Delete

if (!empty($error)) {

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return $error;

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}

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$this->_preload_credentials($query);

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$info = $this->_get_plugin_info($query);

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[415] Fix | Delete

if ($info['installed']) {

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$deleted = delete_plugins(array($info['plugin_path']));

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if ($deleted) {

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$result = array('deleted' => true, 'info' => $this->_get_plugin_info($query));

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} else {

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$result = $this->_generic_error_response('delete_plugin_failed', array(

[422] Fix | Delete

'plugin' => $query['plugin'],

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'error_code' => 'delete_plugin_failed',

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'info' => $info

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));

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}

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} else {

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$result = $this->_generic_error_response('plugin_not_installed', array(

[429] Fix | Delete

'plugin' => $query['plugin'],

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'error_code' => 'plugin_not_installed',

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'info' => $info

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));

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}

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[435] Fix | Delete

return $this->_response($result);

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}

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[438] Fix | Delete

/**

[439] Fix | Delete

* Updates/upgrade the plugin

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*

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* @param array $query Parameter array containing the filesystem credentials entered by the user along with the plugin name and slug

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* @return array Contains the result of the current process

[443] Fix | Delete

*/

[444] Fix | Delete

public function update_plugin($query) {

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[446] Fix | Delete

$error = $this->_validate_fields_and_capabilities($query, array('plugin', 'slug'), array('update_plugins'));

[447] Fix | Delete

if (!empty($error)) {

[448] Fix | Delete

return $error;

[449] Fix | Delete

}

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[451] Fix | Delete

$this->_preload_credentials($query);

[452] Fix | Delete

$info = $this->_get_plugin_info($query);

[453] Fix | Delete

[454] Fix | Delete

// Make sure that we still have the plugin installed before running

[455] Fix | Delete

// the update process

[456] Fix | Delete

if ($info['installed']) {

[457] Fix | Delete

// Load the updates command class if not existed

[458] Fix | Delete

if (!class_exists('UpdraftCentral_Updates_Commands')) include_once('updates.php');

[459] Fix | Delete

$update_command = new UpdraftCentral_Updates_Commands($this->rc);

[460] Fix | Delete

[461] Fix | Delete

$result = $update_command->update_plugin($info['plugin_path'], $query['slug']);

[462] Fix | Delete

if (!empty($result['error'])) {

[463] Fix | Delete

$result['values'] = array('plugin' => $query['plugin'], 'info' => $info);

[464] Fix | Delete

}

[465] Fix | Delete

} else {

[466] Fix | Delete

$result = $this->_generic_error_response('plugin_not_installed', array(

[467] Fix | Delete

'plugin' => $query['plugin'],

[468] Fix | Delete

'error_code' => 'plugin_not_installed',

[469] Fix | Delete

'info' => $info

[470] Fix | Delete

));

[471] Fix | Delete

}

[472] Fix | Delete

[473] Fix | Delete

return $this->_response($result);

[474] Fix | Delete

}

[475] Fix | Delete

[476] Fix | Delete

/**

[477] Fix | Delete

* Gets the plugin information along with its active and install status

[478] Fix | Delete

*

[479] Fix | Delete

* @internal

[480] Fix | Delete

* @param array $query Contains either the plugin name or slug or both to be used when retrieving information

[481] Fix | Delete

* @return array

[482] Fix | Delete

*/

[483] Fix | Delete

private function _get_plugin_info($query) {

[484] Fix | Delete

[485] Fix | Delete

$info = array(

[486] Fix | Delete

'active' => false,

[487] Fix | Delete

'installed' => false

[488] Fix | Delete

);

[489] Fix | Delete

[490] Fix | Delete

// Clear plugin cache so that newly installed/downloaded plugins

[491] Fix | Delete

// gets reflected when calling "get_plugins"

[492] Fix | Delete

if (function_exists('wp_clean_plugins_cache')) {

[493] Fix | Delete

wp_clean_plugins_cache();

[494] Fix | Delete

}

[495] Fix | Delete

[496] Fix | Delete

// Gets all plugins available.

[497] Fix | Delete

$get_plugins = get_plugins();

[498] Fix | Delete

[499] Fix | Delete