<?php

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/**

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* @package Freemius

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* @copyright Copyright (c) 2015, Freemius, Inc.

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* @license https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3

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* @since 1.0.4

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*

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* @link https://github.com/easydigitaldownloads/EDD-License-handler/blob/master/EDD_SL_Plugin_Updater.php

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*/

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if ( ! defined( 'ABSPATH' ) ) {

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exit;

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}

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class FS_Plugin_Updater {

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/**

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* @var Freemius

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* @since 1.0.4

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*/

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private $_fs;

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/**

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* @var FS_Logger

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* @since 1.0.4

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*/

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private $_logger;

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/**

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* @var object

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* @since 1.1.8.1

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*/

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private $_update_details;

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/**

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* @var array

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* @since 2.1.2

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*/

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private $_translation_updates;

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private static $_upgrade_basename = null;

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#--------------------------------------------------------------------------------

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#region Singleton

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#--------------------------------------------------------------------------------

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/**

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* @var FS_Plugin_Updater[]

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* @since 2.0.0

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*/

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private static $_INSTANCES = array();

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/**

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* @param Freemius $freemius

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*

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* @return FS_Plugin_Updater

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*/

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static function instance( Freemius $freemius ) {

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$key = $freemius->get_id();

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if ( ! isset( self::$_INSTANCES[ $key ] ) ) {

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self::$_INSTANCES[ $key ] = new self( $freemius );

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}

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return self::$_INSTANCES[ $key ];

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}

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#endregion

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private function __construct( Freemius $freemius ) {

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$this->_fs = $freemius;

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$this->_logger = FS_Logger::get_logger( WP_FS__SLUG . '_' . $freemius->get_slug() . '_updater', WP_FS__DEBUG_SDK, WP_FS__ECHO_DEBUG_SDK );

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$this->filters();

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}

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/**

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* Initiate required filters.

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*

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* @author Vova Feldman (@svovaf)

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* @since 1.0.4

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*/

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private function filters() {

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// Override request for plugin information

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add_filter( 'plugins_api', array( &$this, 'plugins_api_filter' ), 10, 3 );

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$this->add_transient_filters();

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/**

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* If user has the premium plugin's code but do NOT have an active license,

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* encourage him to upgrade by showing that there's a new release, but instead

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* of showing an update link, show upgrade link to the pricing page.

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*

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* @since 1.1.6

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*

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*/

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// WP 2.9+

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add_action( "after_plugin_row_{$this->_fs->get_plugin_basename()}", array(

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&$this,

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'catch_plugin_update_row'

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), 9 );

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add_action( "after_plugin_row_{$this->_fs->get_plugin_basename()}", array(

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&$this,

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'edit_and_echo_plugin_update_row'

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), 11, 2 );

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if ( ! $this->_fs->has_any_active_valid_license() ) {

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add_action( 'admin_head', array( &$this, 'catch_plugin_information_dialog_contents' ) );

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}

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if ( ! WP_FS__IS_PRODUCTION_MODE ) {

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add_filter( 'http_request_host_is_external', array(

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$this,

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'http_request_host_is_external_filter'

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), 10, 3 );

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}

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if ( $this->_fs->is_premium() ) {

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if ( ! $this->is_correct_folder_name() ) {

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add_filter( 'upgrader_post_install', array( &$this, '_maybe_update_folder_name' ), 10, 3 );

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}

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add_filter( 'upgrader_pre_install', array( 'FS_Plugin_Updater', '_store_basename_for_source_adjustment' ), 1, 2 );

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add_filter( 'upgrader_source_selection', array( 'FS_Plugin_Updater', '_maybe_adjust_source_dir' ), 1, 3 );

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if ( ! $this->_fs->has_any_active_valid_license() ) {

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add_filter( 'wp_prepare_themes_for_js', array( &$this, 'change_theme_update_info_html' ), 10, 1 );

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}

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}

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}

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/**

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* @author Leo Fajardo (@leorw)

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* @since 2.1.4

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*/

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function catch_plugin_information_dialog_contents() {

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if (

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'plugin-information' !== fs_request_get( 'tab', false ) ||

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$this->_fs->get_slug() !== fs_request_get_raw( 'plugin', false )

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) {

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return;

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}

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add_action( 'admin_footer', array( &$this, 'edit_and_echo_plugin_information_dialog_contents' ), 0, 1 );

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ob_start();

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}

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/**

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* @author Leo Fajardo (@leorw)

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* @since 2.1.4

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*

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* @param string $hook_suffix

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*/

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function edit_and_echo_plugin_information_dialog_contents( $hook_suffix ) {

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if (

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'plugin-information' !== fs_request_get( 'tab', false ) ||

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$this->_fs->get_slug() !== fs_request_get_raw( 'plugin', false )

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) {

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return;

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}

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$license = $this->_fs->_get_license();

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$subscription = ( is_object( $license ) && ! $license->is_lifetime() ) ?

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$this->_fs->_get_subscription( $license->id ) :

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null;

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$contents = ob_get_clean();

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$install_or_update_button_id_attribute_pos = strpos( $contents, 'id="plugin_install_from_iframe"' );

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if ( false === $install_or_update_button_id_attribute_pos ) {

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$install_or_update_button_id_attribute_pos = strpos( $contents, 'id="plugin_update_from_iframe"' );

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}

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if ( false !== $install_or_update_button_id_attribute_pos ) {

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$install_or_update_button_start_pos = strrpos(

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substr( $contents, 0, $install_or_update_button_id_attribute_pos ),

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'<a'

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);

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$install_or_update_button_end_pos = ( strpos( $contents, '</a>', $install_or_update_button_id_attribute_pos ) + strlen( '</a>' ) );

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/**

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* The part of the contents without the update button.

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*

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* @author Leo Fajardo (@leorw)

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* @since 2.2.5

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*/

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$modified_contents = substr( $contents, 0, $install_or_update_button_start_pos );

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$install_or_update_button = substr( $contents, $install_or_update_button_start_pos, ( $install_or_update_button_end_pos - $install_or_update_button_start_pos ) );

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/**

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* Replace the plugin information dialog's "Install Update Now" button's text and URL. If there's a license,

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* the text will be "Renew license" and will link to the checkout page with the license's billing cycle

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* and quota. If there's no license, the text will be "Buy license" and will link to the pricing page.

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*/

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$install_or_update_button = preg_replace(

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'/(\<a.+)(id="plugin_(install|update)_from_iframe")(.+href=")([^\s]+)(".*\>)(.+)(\<\/a>)/is',

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is_object( $license ) ?

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sprintf(

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'$1$4%s$6%s$8',

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$this->_fs->checkout_url(

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is_object( $subscription ) ?

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( 1 == $subscription->billing_cycle ? WP_FS__PERIOD_MONTHLY : WP_FS__PERIOD_ANNUALLY ) :

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WP_FS__PERIOD_LIFETIME,

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false,

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array( 'licenses' => $license->quota )

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),

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fs_text_inline( 'Renew license', 'renew-license', $this->_fs->get_slug() )

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) :

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sprintf(

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'$1$4%s$6%s$8',

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$this->_fs->pricing_url(),

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fs_text_inline( 'Buy license', 'buy-license', $this->_fs->get_slug() )

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),

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$install_or_update_button

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);

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/**

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* Append the modified button.

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*

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* @author Leo Fajardo (@leorw)

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* @since 2.2.5

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*/

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$modified_contents .= $install_or_update_button;

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/**

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* Append the remaining part of the contents after the update button.

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*

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* @author Leo Fajardo (@leorw)

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* @since 2.2.5

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*/

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$modified_contents .= substr( $contents, $install_or_update_button_end_pos );

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$contents = $modified_contents;

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}

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echo $contents;

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 2.0.0

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*/

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private function add_transient_filters() {

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if (

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$this->_fs->is_premium() &&

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$this->_fs->is_registered() &&

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! FS_Permission_Manager::instance( $this->_fs )->is_essentials_tracking_allowed()

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) {

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$this->_logger->log( 'Opted out sites cannot receive automatic software updates.' );

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return;

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}

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add_filter( 'pre_set_site_transient_update_plugins', array(

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&$this,

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'pre_set_site_transient_update_plugins_filter'

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) );

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add_filter( 'pre_set_site_transient_update_themes', array(

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&$this,

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'pre_set_site_transient_update_plugins_filter'

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) );

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}

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/**

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* @author Vova Feldman (@svovaf)

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* @since 2.0.0

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*/

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private function remove_transient_filters() {

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remove_filter( 'pre_set_site_transient_update_plugins', array(

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&$this,

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'pre_set_site_transient_update_plugins_filter'

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) );

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remove_filter( 'pre_set_site_transient_update_themes', array(

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&$this,

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'pre_set_site_transient_update_plugins_filter'

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) );

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}

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/**

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* Capture plugin update row by turning output buffering.

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*

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* @author Vova Feldman (@svovaf)

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* @since 1.1.6

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*/

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function catch_plugin_update_row() {

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ob_start();

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}

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/**

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* Overrides default update message format with "renew your license" message.

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*

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* @author Vova Feldman (@svovaf)

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* @since 1.1.6

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*

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* @param string $file

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* @param array $plugin_data

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*/

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function edit_and_echo_plugin_update_row( $file, $plugin_data ) {

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$plugin_update_row = ob_get_clean();

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$current = get_site_transient( 'update_plugins' );

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if ( ! isset( $current->response[ $file ] ) ) {

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echo $plugin_update_row;

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return;

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}

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$r = $current->response[ $file ];

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$has_beta_update = $this->_fs->has_beta_update();

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if ( $this->_fs->has_any_active_valid_license() ) {

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if ( $has_beta_update ) {

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/**

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* Turn the "new version" text into "new Beta version".

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*

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* Sample input:

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* There is a new version of Awesome Plugin available. <a href="...>View version x.y.z details</a> or <a href="...>update now</a>.

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* Output:

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* There is a new Beta version of Awesome Plugin available. <a href="...>View version x.y.z details</a> or <a href="...>update now</a>.

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*

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* @author Leo Fajardo (@leorw)

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* @since 2.3.0

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*/

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$plugin_update_row = preg_replace(

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'/(\<div.+>)(.+)(\<a.+href="([^\s]+)"([^\<]+)\>.+\<a.+)(\<\/div\>)/is',

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(

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'$1' .

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sprintf(

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fs_text_inline( 'There is a %s of %s available.', 'new-version-available', $this->_fs->get_slug() ),

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$has_beta_update ?

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fs_text_inline( 'new Beta version', 'new-beta-version', $this->_fs->get_slug() ) :

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fs_text_inline( 'new version', 'new-version', $this->_fs->get_slug() ),

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$this->_fs->get_plugin_title()

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) .

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' ' .

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'$3' .

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'$6'

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),

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$plugin_update_row

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);

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}

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} else {

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/**

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* Turn the "new version" text into a link that opens the plugin information dialog when clicked and

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* make the "View version x details" text link to the checkout page instead of opening the plugin

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* information dialog when clicked.

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*

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* Sample input:

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* There is a new version of Awesome Plugin available. <a href="...>View version x.y.z details</a> or <a href="...>update now</a>.

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* Output:

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* There is a <a href="...>new version</a> of Awesome Plugin available. <a href="...>Buy a license now</a> to access version x.y.z security & feature updates, and support.

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* OR

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* There is a <a href="...>new Beta version</a> of Awesome Plugin available. <a href="...>Buy a license now</a> to access version x.y.z security & feature updates, and support.

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*

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* @author Leo Fajardo (@leorw)

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*/

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$plugin_update_row = preg_replace(

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'/(\<div.+>)(.+)(\<a.+href="([^\s]+)"([^\<]+)\>.+\<a.+)(\<\/div\>)/is',

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(

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'$1' .

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sprintf(

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fs_text_inline( 'There is a %s of %s available.', 'new-version-available', $this->_fs->get_slug() ),

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sprintf(

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'<a href="$4"%s>%s</a>',

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'$5',

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$has_beta_update ?

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fs_text_inline( 'new Beta version', 'new-beta-version', $this->_fs->get_slug() ) :

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fs_text_inline( 'new version', 'new-version', $this->_fs->get_slug() )

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),

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$this->_fs->get_plugin_title()

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) .

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' ' .

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$this->_fs->version_upgrade_checkout_link( $r->new_version ) .

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'$6'

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),

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$plugin_update_row

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);

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}

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if (

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$this->_fs->is_plugin() &&

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isset( $r->upgrade_notice ) &&

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strlen( trim( $r->upgrade_notice ) ) > 0

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) {

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$slug = $this->_fs->get_slug();

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$upgrade_notice_html = sprintf(

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'<p class="notice fs-upgrade-notice fs-slug-%1$s fs-type-%2$s" data-slug="%1$s" data-type="%2$s"><strong>%3$s</strong> %4$s</p>',

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$slug,

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$this->_fs->get_module_type(),

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fs_text_inline( 'Important Upgrade Notice:', 'upgrade_notice', $slug ),

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esc_html( $r->upgrade_notice )

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);

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$plugin_update_row = str_replace( '</div>', '</div>' . $upgrade_notice_html, $plugin_update_row );

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}

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echo $plugin_update_row;

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}

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/**

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* @author Leo Fajardo (@leorw)

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* @since 2.0.2

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*

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* @param array $prepared_themes

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*

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* @return array

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*/

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function change_theme_update_info_html( $prepared_themes ) {

[414] Fix | Delete

$theme_basename = $this->_fs->get_plugin_basename();

[415] Fix | Delete

[416] Fix | Delete

if ( ! isset( $prepared_themes[ $theme_basename ] ) ) {

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return $prepared_themes;

[418] Fix | Delete

}

[419] Fix | Delete

[420] Fix | Delete

$themes_update = get_site_transient( 'update_themes' );

[421] Fix | Delete

if ( ! isset( $themes_update->response[ $theme_basename ] ) ||

[422] Fix | Delete

empty( $themes_update->response[ $theme_basename ]['package'] )

[423] Fix | Delete

) {

[424] Fix | Delete

return $prepared_themes;

[425] Fix | Delete

}

[426] Fix | Delete

[427] Fix | Delete

$prepared_themes[ $theme_basename ]['update'] = preg_replace(

[428] Fix | Delete

'/(\<p.+>)(.+)(\<a.+\<a.+)\.(.+\<\/p\>)/is',

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'$1 $2 ' . $this->_fs->version_upgrade_checkout_link( $themes_update->response[ $theme_basename ]['new_version'] ) .

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'$4',

[431] Fix | Delete

$prepared_themes[ $theme_basename ]['update']

[432] Fix | Delete

);

[433] Fix | Delete

[434] Fix | Delete

// Set to false to prevent the "Update now" link for the context theme from being shown on the "Themes" page.

[435] Fix | Delete

$prepared_themes[ $theme_basename ]['hasPackage'] = false;

[436] Fix | Delete

[437] Fix | Delete

return $prepared_themes;

[438] Fix | Delete

}

[439] Fix | Delete

[440] Fix | Delete

/**

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* Since WP version 3.6, a new security feature was added that denies access to repository with a local ip.

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* During development mode we want to be able updating plugin versions via our localhost repository. This

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* filter white-list all domains including "api.freemius".

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*

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* @link http://www.emanueletessore.com/wordpress-download-failed-valid-url-provided/

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*

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* @author Vova Feldman (@svovaf)

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* @since 1.0.4

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*

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* @param bool $allow

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* @param string $host

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* @param string $url

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*

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* @return bool

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*/

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function http_request_host_is_external_filter( $allow, $host, $url ) {

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return ( false !== strpos( $host, 'freemius' ) ) ? true : $allow;

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}

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/**

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* Check for Updates at the defined API endpoint and modify the update array.

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*

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* This function dives into the update api just when WordPress creates its update array,

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* then adds a custom API call and injects the custom plugin data retrieved from the API.

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* It is reassembled from parts of the native WordPress plugin update code.

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* See wp-includes/update.php line 121 for the original wp_update_plugins() function.

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*

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* @author Vova Feldman (@svovaf)

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* @since 1.0.4

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*

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* @uses FS_Api

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*

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* @param object $transient_data Update array build by WordPress.

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*

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* @return object Modified update array with custom plugin data.

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*/

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function pre_set_site_transient_update_plugins_filter( $transient_data ) {

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$this->_logger->entrance();

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/**

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* "plugins" or "themes".

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*

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* @author Leo Fajardo (@leorw)

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* @since 1.2.2

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*/

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$module_type = $this->_fs->get_module_type() . 's';

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/**

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* Ensure that we don't mix plugins update info with themes update info.

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*

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* @author Leo Fajardo (@leorw)

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* @since 1.2.2

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*/

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if ( "pre_set_site_transient_update_{$module_type}" !== current_filter() ) {

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return $transient_data;

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}

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if ( empty( $transient_data ) ||

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