<?php

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

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/**

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* Handles UpdraftCentral Theme Commands which basically handles

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* the installation and activation of a theme

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*/

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class UpdraftCentral_Theme_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 listener.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('theme.php', 'file.php', 'template.php', 'class-wp-upgrader.php', 'theme-install.php', 'update.php');

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}

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/**

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* Installs and activates a theme through upload

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*

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

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* @return array Contains the result of the current process

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*/

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public function upload_theme($params) {

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

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}

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/**

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* Checks whether the theme is currently installed and activated.

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*

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* @param array $query Parameter array containing the name of the theme 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_theme_installed($query) {

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

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

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$result = $this->_get_theme_info($query['theme']);

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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 theme 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_theme_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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$info = $this->_get_theme_info($query['theme']);

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if ($info['installed']) {

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switch_theme($info['slug']);

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if (wp_get_theme()->get_stylesheet() === $info['slug']) {

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$result = array('activated' => true, 'info' => $this->_get_theme_info($query['theme']));

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} else {

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

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

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'error_code' => 'theme_not_activated',

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

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'info' => $this->_get_theme_info($query['theme'])

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));

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}

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} else {

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

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

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'error_code' => 'theme_not_installed',

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'error_message' => __('The theme 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 'network_enable':

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$info = $this->_get_theme_info($query['theme']);

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if ($info['installed']) {

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// Make sure that network_enable_theme is present and callable since

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// it is only available at 4.6. If not, we'll do things the old fashion way

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if (is_callable(array('WP_Theme', 'network_enable_theme'))) {

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WP_Theme::network_enable_theme($info['slug']);

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} else {

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$allowed_themes = get_site_option('allowedthemes');

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$allowed_themes[$info['slug']] = true;

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update_site_option('allowedthemes', $allowed_themes);

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}

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$allowed = WP_Theme::get_allowed_on_network();

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if (is_array($allowed) && !empty($allowed[$info['slug']])) {

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$result = array('enabled' => true, 'info' => $this->_get_theme_info($query['theme']));

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} else {

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

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

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'error_code' => 'theme_not_enabled',

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

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'info' => $this->_get_theme_info($query['theme'])

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));

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}

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} else {

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

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

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'error_code' => 'theme_not_installed',

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'error_message' => __('The theme you wish to enable on your network 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 'network_disable':

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$info = $this->_get_theme_info($query['theme']);

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if ($info['installed']) {

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// Make sure that network_disable_theme is present and callable since

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// it is only available at 4.6. If not, we'll do things the old fashion way

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if (is_callable(array('WP_Theme', 'network_disable_theme'))) {

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WP_Theme::network_disable_theme($info['slug']);

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} else {

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$allowed_themes = get_site_option('allowedthemes');

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if (isset($allowed_themes[$info['slug']])) {

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unset($allowed_themes[$info['slug']]);

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}

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update_site_option('allowedthemes', $allowed_themes);

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}

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$allowed = WP_Theme::get_allowed_on_network();

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if (is_array($allowed) && empty($allowed[$info['slug']])) {

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$result = array('disabled' => true, 'info' => $this->_get_theme_info($query['theme']));

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} else {

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

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

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'error_code' => 'theme_not_disabled',

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

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'info' => $this->_get_theme_info($query['theme'])

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));

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}

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} else {

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

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

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'error_code' => 'theme_not_installed',

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'error_message' => __('The theme you wish to disable from your network 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 'install':

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$api = themes_api('theme_information', array(

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

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'fields' => array(

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'description' => true,

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'sections' => false,

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'rating' => true,

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'ratings' => true,

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'downloaded' => true,

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'downloadlink' => true,

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'last_updated' => true,

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'screenshot_url' => true,

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'parent' => true,

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)

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));

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$info = $this->_get_theme_info($query['theme']);

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

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'error_code' => 'theme_not_installed',

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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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$upgrader = new Theme_Upgrader($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('theme_install_failed', array(

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

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'error_code' => $error_code,

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'error_message' => $error_message,

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'info' => $this->_get_theme_info($query['theme'])

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));

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} else {

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$result = array('installed' => true, 'info' => $this->_get_theme_info($query['theme']));

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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 = $this->_generic_error_response('theme_'.$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('theme_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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[329] Fix | Delete

/**

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* Activates the theme

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*

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* @param array $query Parameter array containing the name of the theme 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_theme($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('theme'), array('switch_themes'));

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if (!empty($error)) {

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return $error;

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}

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$result = $this->_apply_theme_action('activate', $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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[350] Fix | Delete

/**

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* Enables theme for network

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*

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* @param array $query Parameter array containing the name of the theme 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 network_enable_theme($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('theme'), array('switch_themes'));

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if (!empty($error)) {

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return $error;

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}

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$result = $this->_apply_theme_action('network_enable', $query);

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

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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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[371] Fix | Delete

/**

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* Disables theme from network

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*

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* @param array $query Parameter array containing the name of the theme 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 network_disable_theme($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('theme'), array('switch_themes'));

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if (!empty($error)) {

[381] Fix | Delete

return $error;

[382] Fix | Delete

}

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$result = $this->_apply_theme_action('network_disable', $query);

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

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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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[392] Fix | Delete

/**

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* Download, install and activates the theme

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*

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* @param array $query Parameter array containing the filesystem credentials entered by the user along with the theme 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_theme($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('theme', 'slug'), array('install_themes', 'switch_themes'));

[401] 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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$result = $this->_apply_theme_action('install', $query);

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

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$result = $this->_apply_theme_action('activate', $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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[417] Fix | Delete

return $this->_response($result);

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}

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[420] Fix | Delete

/**

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* Download, install the theme

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*

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

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* @return array Contains the result of the current process

[425] Fix | Delete

*/

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public function install_theme($query) {

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$error = $this->_validate_fields_and_capabilities($query, array('theme', 'slug'), array('install_themes'));

[429] Fix | Delete

if (!empty($error)) {

[430] Fix | Delete

return $error;

[431] Fix | Delete

}

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[433] Fix | Delete

$this->_preload_credentials($query);

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[435] Fix | Delete

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

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

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return $result;

[438] Fix | Delete

}

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return $this->_response($result);

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}

[442] Fix | Delete

[443] Fix | Delete

/**

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* Uninstall/delete the theme

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*

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* @param array $query Parameter array containing the filesystem credentials entered by the user along with the theme 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_theme($query) {

[450] Fix | Delete

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$error = $this->_validate_fields_and_capabilities($query, array('theme'), array('delete_themes'));

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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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$info = $this->_get_theme_info($query['theme']);

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if ($info['installed']) {

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$deleted = delete_theme($info['slug']);

[461] Fix | Delete

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if ($deleted) {

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$result = array('deleted' => true, 'info' => $this->_get_theme_info($query['theme']));

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} else {

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

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

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'error_code' => 'delete_theme_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('theme_not_installed', array(

[473] Fix | Delete

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

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'error_code' => 'theme_not_installed',

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'info' => $info

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));

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}

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[479] Fix | Delete

return $this->_response($result);

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}

[481] Fix | Delete

[482] Fix | Delete

/**

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* Updates/upgrade the theme

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*

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

[486] Fix | Delete

* @return array Contains the result of the current process

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*/

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public function update_theme($query) {

[489] Fix | Delete

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$error = $this->_validate_fields_and_capabilities($query, array('theme'), array('update_themes'));

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if (!empty($error)) {

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return $error;

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}

[494] Fix | Delete

[495] Fix | Delete

$this->_preload_credentials($query);

[496] Fix | Delete

$info = $this->_get_theme_info($query['theme']);

[497] Fix | Delete

[498] Fix | Delete

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

[499] Fix | Delete