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Envato_Update_Checker.php
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Envato_Update_Checker.php
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<?php
/**
* Checks Envato WordPress plugins' updates and download its if any update available
*
* @author Eray Alakese <[email protected]>
* @version 1.3.1
* @license GPL v2
*/
namespace erayalakese;
require_once(__DIR__.'/vendor/autoload.php');
class Envato_Update_Checker
{
private $plugin_name;
private $plugin_slug;
private $recent_version;
private $purchase_code;
private $envato_update_checker_json;
/**
* Workflow
*
* 1) Check if user registered any purchase code for {plugin slug}
* 2) If yes, check envato-update-checker.json file, else go to step 4
* 3) If there is a new version, show admin_notices, else do nothing
* 4) Ask user to save purchase code.
*/
function __construct($plugin_name, $plugin_slug, $recent_version, $envato_update_checker_json, $personal_token)
{
$this->plugin_name = $plugin_name;
$this->plugin_slug = $plugin_slug;
$this->recent_version = $recent_version;
$this->envato_update_checker_json = $envato_update_checker_json;
$this->personal_token = $personal_token;
$this->api = new \erayalakese\Envato_Market_API($this->personal_token);
add_action('admin_init', array($this, 'init'));
add_action('admin_init', array($this, 'http_requests'));
}
function init()
{
$this->purchase_code = get_option('euc_'.$this->plugin_slug.'_pc');
if($this->purchase_code === FALSE)
{
add_action('admin_notices', array($this, 'ask_for_pc'));
}
else
{
$pause_time = get_option('euc_'.$this->plugin_slug.'_pausetime');
if(!$pause_time || ($pause_time && time() > $pause_time+(60*60*24) ))
add_action('admin_notices', array($this, 'update_check'));
}
}
function ask_for_pc()
{
?>
<div class="error"><p>
<strong>You need to type your purchase code to get notifications about updates.</strong>
<form action="" method="GET"><input type="text" name="euc_input_pc"><input type="submit"></form>
</p></div>
<?php
}
function http_requests()
{
if(isset($_GET["euc_input_pc"]))
{
$r = update_option('euc_'.$this->plugin_slug.'_pc', $_GET["euc_input_pc"]);
wp_safe_redirect(isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:'wp-admin/index.php');
exit;
}
elseif(isset($_GET["euc_action"]) && $_GET["euc_action"] == 'download')
{
$this->api->download_item($this->purchase_code);
}
elseif(isset($_GET["euc_remind_later"]))
{
$this->remind_later();
wp_safe_redirect(isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:'wp-admin/index.php');
exit;
}
elseif(isset($_GET["euc_dont_remind"]) && is_numeric($_GET["euc_dont_remind"]))
{
$this->dont_remind($_GET["euc_dont_remind"]);
wp_safe_redirect(isset($_SERVER['HTTP_REFERER'])?$_SERVER['HTTP_REFERER']:'wp-admin/index.php');
exit;
}
}
function update_check()
{
$version = $this->recent_version;
$url = $this->envato_update_checker_json;
if(function_exists('curl_version')) :
$CURL = curl_init();
curl_setopt($CURL, CURLOPT_URL, $url);
curl_setopt($CURL, CURLOPT_HEADER, 0);
curl_setopt($CURL, CURLOPT_RETURNTRANSFER, 1);
$data = curl_exec($CURL);
curl_close($CURL);
$c = $data;
else :
$c = file_get_contents($url);
endif;
$json = json_decode($c);
$new_version = str_replace('.', '' , $json->{$this->plugin_slug});
$recent_version = str_replace('.', '' , $version);
$dont_remind = get_option('euc_'.$this->plugin_slug.'_dontremind');
if($new_version > $recent_version && (!$dont_remind || ($dont_remind != (int)$new_version))) :
?>
<div class="update-nag">
New <strong><?=$this->plugin_name?> plugin</strong> update available. <a href="?euc_action=download">Click here</a> to download newest version of the plugin.
<br /><br />
<div style="float:right"><a href="?euc_remind_later" onclick="if(confirm('Are you sure?')) return true; else return false;">remind me later</a> <a href="?euc_dont_remind=<?=$new_version?>" onclick="if(confirm('Are you sure?')) return true; else return false;">don't warn me about this version again</a></div>
</div>
<?php
endif;
}
function remind_later()
{
update_option('euc_'.$this->plugin_slug.'_pausetime', time());
add_action('admin_notices', array($this, 'remind_later_notice'));
}
function remind_later_notice()
{
?>
<div class="update-nag">
OK, we will remind you again 24 hours later.
</div>
<?php
}
function dont_remind($version)
{
update_option('euc_'.$this->plugin_slug.'_dontremind', $version);
add_action('admin_notices', array($this, 'dont_remind_notice'));
}
function dont_remind_notice()
{
?>
<div class="update-nag">
OK, we won't warn you again for this version.
</div>
<?php
}
}