Envato API. Upgrading plugin from WordPress

minimus April 1, 2016 Programming Leave a comment 3,361 Views

As you probably already know, WordPress has a mechanism that detects that the plugins, themes and the kernel itself WordPress have updates. Notify the user when they are available, to receive information about these updates and allows you to automatically install them. However, this only applies to plugins and templates so placed in repositories of WordPress.

Of course, there are ways to extend this mechanism for plugins and themes published on other servers. In the network there are many scripts for the ability to upgrade from GitHub and even from your own server. There are scripts to update with Market Envato (ThemeForest and CodeCanyon). However, all the scripts for the access to the Envato API, which are used today is obsolete because from June 2016 old Envato API will be closed. You must now use the new Envato API. I had to write the script yourself.

Script

The plan

All the upgrading data are provided by the server WordPress, i.e. When your blog requests this data from wordpress.org server, it gets all the necessary information. Envato Server also allows you to receive all the necessary information about updating the plugin that is sold on CodeCanyon (plugins on Envato Market), but with another data structure (other than from WordPress). Therefore our task is to:

Obtain information of the availability of a new version of the plugin and notify WordPress about the existence of it
Obtain information about the plugin for future viewing by the user of the plugin (blog administrator)
Provide access to the file of the new version of the plugin on the server Envato to downloads and updates

All three point plan we can implement using three WordPress filters, namely pre_set_site_transient_update_plugins, plugins_api and upgrader_package_options.

Input Data

The script is implemented as a class (the PLO) and takes two startup parameter necessary for work. In principle, you can modify the class so that incoming data is defined in the class, but the class will lose its versatility.

public function __construct( $id, $data ) {
	if ( ! empty( $id ) ) {
		$this->itemId         = $id;
		$this->personalToken  = ( isset( $data['token'] ) ) ? $data['token'] : null;
		$this->currentVersion = ( isset( $data['version'] ) ) ? $data['version'] : null;
		$this->slug           = ( isset( $data['slug'] ) ) ? $data['slug'] : null;
		$this->pluginSlug     = ( isset( $data['pluginSlug'] ) ) ? $data['pluginSlug'] : null;
		$this->name           = ( isset( $data['name'] ) ) ? $data['name'] : null;
		$this->homepage       = ( isset( $data['homepage'] ) ) ? $data['homepage'] : '';
	}
	$this->enabled = self::is_enabled();
	if ( $this->enabled ) {
		add_filter( 'pre_set_site_transient_update_plugins', array( &$this, 'checkUpdate' ) );
		add_filter( 'plugins_api', array( &$this, 'checkInfo' ), 10, 3 );
		add_filter( 'upgrader_package_options', array( &$this, 'setUpdatePackage' ) );
	}
}

public function __construct( $id, $data ) {

if ( ! empty( $id ) ) {

$this->itemId = $id;

$this->personalToken = ( isset( $data['token'] ) ) ? $data['token'] : null;

$this->currentVersion = ( isset( $data['version'] ) ) ? $data['version'] : null;

$this->slug = ( isset( $data['slug'] ) ) ? $data['slug'] : null;

$this->pluginSlug = ( isset( $data['pluginSlug'] ) ) ? $data['pluginSlug'] : null;

$this->name = ( isset( $data['name'] ) ) ? $data['name'] : null;

$this->homepage = ( isset( $data['homepage'] ) ) ? $data['homepage'] : '';

}

$this->enabled = self::is_enabled();

if ( $this->enabled ) {

add_filter( 'pre_set_site_transient_update_plugins', array( &$this, 'checkUpdate' ) );

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

add_filter( 'upgrader_package_options', array( &$this, 'setUpdatePackage' ) );

}

To ensure the achievement of the objective, we need the following data:

$id — ID of the plugin on the Envato Market
$data[‘token’] — Personal Token of buyer
$data[‘version’] — plugin current version
$data[‘slug’] — slug of plugin (i.e.: sam-pro-lite)
$data[‘pluginSlug’] — full slug of plugin (plugin folder + name of main plugin file, i.e.: sam-pro-lite/sam-pro-lite.php)
$data[‘name’] — name of plugin
$data[‘homepage’] – plugin homepage URL, not required

The buyer of the plugin can generate a Personal Token on the website of the Envato API. The minimum set of permissions for the token should be:

The constructor of plugin accepts these data as two parameters: a string $id and array $data. After verifying input data constructor assigns methods of class checkUpdate, checkInfo and setUpdatePackage as handlers of filters.

pre_set_site_transient_update_plugins — checkUpdate
plugins_api — checkInfo
upgrader_package_options — getUpdatePackage

Getting Data from Envato API

For getting data from Envato API requires only ID of plugin (Envato Market) and Personal Token of the buyer:

public function request( $data = 'info' ) {
	$args = array(
		'headers' => array(
			'Authorization' => 'Bearer ' . $this->personalToken,
		),
		'timeout' => 30,
	);

	switch ( $data ) {
		case 'info':
			$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;
			break;
		case 'link':
			$url = 'https://api.envato.com/v2/market/buyer/download?item_id=' . $this->itemId . '&shorten_url=true';
			break;
		default:
			$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;
	}

	$response = wp_remote_get( esc_url_raw( $url ), $args );

	$response_code    = wp_remote_retrieve_response_code( $response );
	$response_message = wp_remote_retrieve_response_message( $response );

	if ( 200 !== $response_code && ! empty( $response_message ) ) {
		return new WP_Error( $response_code, $response_message );
	} elseif ( 200 !== $response_code ) {
		return new WP_Error( $response_code, __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );
	} else {
		$out = json_decode( wp_remote_retrieve_body( $response ), true );
		if ( null === $out ) {
			return new WP_Error( 'api_error', __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );
		}

		return $out;
	}
}

public function request( $data = 'info' ) {

$args = array(

'headers' => array(

'Authorization' => 'Bearer ' . $this->personalToken,

'timeout' => 30,

);

switch ( $data ) {

case 'info':

$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;

break;

case 'link':

$url = 'https://api.envato.com/v2/market/buyer/download?item_id=' . $this->itemId . '&shorten_url=true';

break;

default:

$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;

}

$response = wp_remote_get( esc_url_raw( $url ), $args );

$response_code = wp_remote_retrieve_response_code( $response );

$response_message = wp_remote_retrieve_response_message( $response );

if ( 200 !== $response_code && ! empty( $response_message ) ) {

return new WP_Error( $response_code, $response_message );

} elseif ( 200 !== $response_code ) {

return new WP_Error( $response_code, __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );

} else {

$out = json_decode( wp_remote_retrieve_body( $response ), true );

if ( null === $out ) {

return new WP_Error( 'api_error', __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );

}

return $out;

}

Version Request

This script uses filter pre_set_site_transient_update_plugins for getting available version of plugin from Envato Market. And, if version of plugin on the Envato is greater than current version, reports WordPress on the need to update the plugin.

public function checkUpdate( $transient ) {
	if ( empty( $transient->checked ) ) {
		return $transient;
	}

	$pluginInfo = self::request();
	if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {
		$info = $pluginInfo['wordpress_plugin_metadata'];
		if ( version_compare( $this->currentVersion, $info['version'], '<' ) ) {
			$plugin                                   = new stdClass();
			$plugin->slug                             = $this->slug;
			$plugin->new_version                      = $info['version'];
			$plugin->url                              = '';
			// We cannot specify the path to the plugin archive file for "package" field in advance. 
			// Sets value as plugin slug to identify the plugin for future use.
			$plugin->package                          = $this->pluginSlug;
			$plugin->name                             = $info['plugin_name'];
			$plugin->plugin                           = $this->pluginSlug;
			$transient->response[ $this->pluginSlug ] = $plugin;
		}
	}

	return $transient;
}

public function checkUpdate( $transient ) {

if ( empty( $transient->checked ) ) {

return $transient;

}

$pluginInfo = self::request();

if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {

$info = $pluginInfo['wordpress_plugin_metadata'];

if ( version_compare( $this->currentVersion, $info['version'], '<' ) ) {

$plugin = new stdClass();

$plugin->slug = $this->slug;

$plugin->new_version = $info['version'];

$plugin->url = '';

// We cannot specify the path to the plugin archive file for "package" field in advance.

// Sets value as plugin slug to identify the plugin for future use.

$plugin->package = $this->pluginSlug;

$plugin->name = $info['plugin_name'];

$plugin->plugin = $this->pluginSlug;

$transient->response[ $this->pluginSlug ] = $plugin;

}

return $transient;

}

The result of filter handling:

Plugin Info Request

When user (blog admin) clicks “View Details” this class requests Envato API to getting detail plugin information.

public function checkInfo( $result, $action, $args ) {
	if ( $args->slug === $this->slug ) {
		$pluginInfo = self::request();
		if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {
			$info        = $pluginInfo['wordpress_plugin_metadata'];
			$versions    = self::getAttribute( $pluginInfo['attributes'], 'compatible-software' );
			// Start: Separating description to sections
			// You deside how to share a description of the sections
			$sections    = explode( '<h2 id="item-description__changelog">Changelog</h2>', $pluginInfo['description'] );
			$description = ( isset( $sections[0] ) ) ? $sections[0] : '';
			$changelog   = ( isset( $sections[1] ) ) ? $sections[1] : '';
			// End

			$plugin                  = new stdClass();
			$plugin->name            = $info['plugin_name'];
			$plugin->author          = $info['author'];
			$plugin->slug            = $this->slug;
			$plugin->version         = $info['version'];
			$plugin->requires        = $versions['required'];
			$plugin->tested          = $versions['tested'];
			$plugin->rating          = ( (int) $pluginInfo['rating']['count'] < 3 ) ? 100.0 : 20 * (float) $pluginInfo['rating']['rating'];
			$plugin->num_ratings     = (int) $pluginInfo['rating']['count'];
			$plugin->active_installs = (int) $pluginInfo['number_of_sales'];
			$plugin->last_updated    = $pluginInfo['updated_at'];
			$plugin->added           = $pluginInfo['published_at'];
			$plugin->homepage        = $this->homepage;
			$plugin->sections        = array(
				'description' => $description,
				'changelog'   => $changelog
			);
			$plugin->download_link   = $pluginInfo['url'];
			$plugin->banners         = array(
				'high' => $pluginInfo['previews']['landscape_preview']['landscape_url']
			);

			return $plugin;
		} else {
			return false;
		}
	} else {
		return false;
	}
}

public function checkInfo( $result, $action, $args ) {

if ( $args->slug === $this->slug ) {

$pluginInfo = self::request();

if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {

$info = $pluginInfo['wordpress_plugin_metadata'];

$versions = self::getAttribute( $pluginInfo['attributes'], 'compatible-software' );

// Start: Separating description to sections

// You deside how to share a description of the sections

$sections = explode( '<h2 id="item-description__changelog">Changelog</h2>', $pluginInfo['description'] );

$description = ( isset( $sections[0] ) ) ? $sections[0] : '';

$changelog = ( isset( $sections[1] ) ) ? $sections[1] : '';

// End

$plugin = new stdClass();

$plugin->name = $info['plugin_name'];

$plugin->author = $info['author'];

$plugin->slug = $this->slug;

$plugin->version = $info['version'];

$plugin->requires = $versions['required'];

$plugin->tested = $versions['tested'];

$plugin->rating = ( (int) $pluginInfo['rating']['count'] < 3 ) ? 100.0 : 20 * (float) $pluginInfo['rating']['rating'];

$plugin->num_ratings = (int) $pluginInfo['rating']['count'];

$plugin->active_installs = (int) $pluginInfo['number_of_sales'];

$plugin->last_updated = $pluginInfo['updated_at'];

$plugin->added = $pluginInfo['published_at'];

$plugin->homepage = $this->homepage;

$plugin->sections = array(

'description' => $description,

'changelog' => $changelog

);

$plugin->download_link = $pluginInfo['url'];

$plugin->banners = array(

'high' => $pluginInfo['previews']['landscape_preview']['landscape_url']

);

return $plugin;

} else {

return false;

}

} else {

return false;

}

The result of filter handling:

Upgrading Plugin

Identifying your plugin using “package” field of options array, previously set to Plugin Slug value. Getting a link to the plugin archive file from Envato and assign it to “package” field.

public function setUpdatePackage( $options ) {
	$package = $options['package'];
	if ( $package === $this->pluginSlug ) {
		$response           = self::request( 'link' );
		$options['package'] =
			( is_wp_error( $response ) || empty( $response ) || ! empty( $response['error'] ) ) ?
				'' :
				$response['wordpress_plugin'];
	}

	return $options;
}

public function setUpdatePackage( $options ) {

$package = $options['package'];

if ( $package === $this->pluginSlug ) {

$response = self::request( 'link' );

$options['package'] =

( is_wp_error( $response ) || empty( $response ) || ! empty( $response['error'] ) ) ?

'' :

$response['wordpress_plugin'];

}

return $options;

}

The result of filter handling:

Class Usage

Include this class into your plugin using “init” action.

add_action( 'init', array( &$this, 'updatingService' ) );

1	add_action( 'init', array( &$this, 'updatingService' ) );

public function updatingService() {
	$settings = self::getSettings();
	include_once ('tools/simplelib-plugin-upgrader.php');
	$emToken = self::decryptData($settings['emToken']);
	$this->samProUpgrader = new SimpleLibPluginUpgrader('12721925', array(
		'token' => $emToken,
		'version' => SAM_PRO_VERSION,
		'slug' => 'sam-pro-lite',
		'pluginSlug' => basename( SAM_PRO_PATH ) . '/' . basename( SAM_PRO_MAIN_FILE ),
		'name' => 'SAM Pro Lite',
		'homepage' => 'http://uncle-sam.info/sam-pro-lite/sam-pro-lite-info/features/'
	));
}

public function updatingService() {

$settings = self::getSettings();

include_once ('tools/simplelib-plugin-upgrader.php');

$emToken = self::decryptData($settings['emToken']);

$this->samProUpgrader = new SimpleLibPluginUpgrader('12721925', array(

'token' => $emToken,

'version' => SAM_PRO_VERSION,

'slug' => 'sam-pro-lite',

'pluginSlug' => basename( SAM_PRO_PATH ) . '/' . basename( SAM_PRO_MAIN_FILE ),

'name' => 'SAM Pro Lite',

'homepage' => 'http://uncle-sam.info/sam-pro-lite/sam-pro-lite-info/features/'

));

}

Full Script Code

<?php
/**
 * Class SimpleLibPluginUpgrader.
 * Author: minimus
 * Date: 21.03.2016
 * Time: 12:21
 */

if ( ! class_exists( 'SimpleLibPluginUpgrader' ) ) {
	class SimpleLibPluginUpgrader {
		private $itemId = null;
		private $personalToken = null;
		private $currentVersion = null;
		private $slug = null;
		private $pluginSlug = null;
		private $name = null;
		private $homepage = '';

		public $enabled = false;

		public function __construct( $id, $data ) {
			if ( ! empty( $id ) ) {
				$this->itemId         = $id;
				$this->personalToken  = ( isset( $data['token'] ) ) ? $data['token'] : null;
				$this->currentVersion = ( isset( $data['version'] ) ) ? $data['version'] : null;
				$this->slug           = ( isset( $data['slug'] ) ) ? $data['slug'] : null;
				$this->pluginSlug     = ( isset( $data['pluginSlug'] ) ) ? $data['pluginSlug'] : null;
				$this->name           = ( isset( $data['name'] ) ) ? $data['name'] : null;
				$this->homepage       = ( isset( $data['homepage'] ) ) ? $data['homepage'] : '';
			}
			$this->enabled = self::is_enabled();
			if ( $this->enabled ) {
				add_filter( 'pre_set_site_transient_update_plugins', array( &$this, 'checkUpdate' ) );
				add_filter( 'plugins_api', array( &$this, 'checkInfo' ), 10, 3 );
				add_filter( 'upgrader_package_options', array( &$this, 'setUpdatePackage' ) );
			}
		}

		private function is_enabled() {
			return (
				! is_null( $this->itemId ) &&
				! is_null( $this->personalToken ) &&
				! is_null( $this->currentVersion ) &&
				! is_null( $this->slug ) &&
				! is_null( $this->pluginSlug ) &&
				! is_null( $this->name )
			);
		}

		private function getAttribute( $data, $name ) {
			$out = '';
			foreach ( $data as $key => $val ) {
				if ( $val['name'] === $name ) {
					switch ( $name ) {
						case 'compatible-software':
							$out = array(
								'required' => str_replace( 'WordPress ', '', $val['value'][ count( $val['value'] ) - 1 ] ),
								'tested'   => str_replace( 'WordPress ', '', $val['value'][0] )
							);
							break;
						default:
							$out = false;
					}
				}
			}

			return $out;
		}

		public function request( $data = 'info' ) {
			$args = array(
				'headers' => array(
					'Authorization' => 'Bearer ' . $this->personalToken,
				),
				'timeout' => 30,
			);

			switch ( $data ) {
				case 'info':
					$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;
					break;
				case 'link':
					$url = 'https://api.envato.com/v2/market/buyer/download?item_id=' . $this->itemId . '&shorten_url=true';
					break;
				default:
					$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;
			}

			$response = wp_remote_get( esc_url_raw( $url ), $args );

			$response_code    = wp_remote_retrieve_response_code( $response );
			$response_message = wp_remote_retrieve_response_message( $response );

			if ( 200 !== $response_code && ! empty( $response_message ) ) {
				return new WP_Error( $response_code, $response_message );
			} elseif ( 200 !== $response_code ) {
				return new WP_Error( $response_code, __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );
			} else {
				$out = json_decode( wp_remote_retrieve_body( $response ), true );
				if ( null === $out ) {
					return new WP_Error( 'api_error', __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );
				}

				return $out;
			}
		}

		public function checkUpdate( $transient ) {
			if ( empty( $transient->checked ) ) {
				return $transient;
			}

			$pluginInfo = self::request();
			if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {
				$info = $pluginInfo['wordpress_plugin_metadata'];
				if ( version_compare( $this->currentVersion, $info['version'], '<' ) ) {
					$plugin                                   = new stdClass();
					$plugin->slug                             = $this->slug;
					$plugin->new_version                      = $info['version'];
					$plugin->url                              = '';
					$plugin->package                          = $this->pluginSlug;
					$plugin->name                             = $info['plugin_name'];
					$plugin->plugin                           = $this->pluginSlug;
					$transient->response[ $this->pluginSlug ] = $plugin;
				}
			}

			return $transient;
		}

		public function checkInfo( $result, $action, $args ) {
			if ( $args->slug === $this->slug ) {
				$pluginInfo = self::request();
				if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {
					$info        = $pluginInfo['wordpress_plugin_metadata'];
					$versions    = self::getAttribute( $pluginInfo['attributes'], 'compatible-software' );
					$sections    = explode( '<h2 id="item-description__changelog">Changelog</h2>', $pluginInfo['description'] );
					$description = ( isset( $sections[0] ) ) ? $sections[0] : '';
					$changelog   = ( isset( $sections[1] ) ) ? $sections[1] : '';

					$plugin                  = new stdClass();
					$plugin->name            = $info['plugin_name'];
					$plugin->author          = $info['author'];
					$plugin->slug            = $this->slug;
					$plugin->version         = $info['version'];
					$plugin->requires        = $versions['required'];
					$plugin->tested          = $versions['tested'];
					$plugin->rating          = ( (int) $pluginInfo['rating']['count'] < 3 ) ? 100.0 : 20 * (float) $pluginInfo['rating']['rating'];
					$plugin->num_ratings     = (int) $pluginInfo['rating']['count'];
					$plugin->active_installs = (int) $pluginInfo['number_of_sales'];
					$plugin->last_updated    = $pluginInfo['updated_at'];
					$plugin->added           = $pluginInfo['published_at'];
					$plugin->homepage        = $this->homepage;
					$plugin->sections        = array(
						'description' => $description,
						'changelog'   => $changelog
					);
					$plugin->download_link   = $pluginInfo['url'];
					$plugin->banners         = array(
						'high' => $pluginInfo['previews']['landscape_preview']['landscape_url']
					);

					return $plugin;
				} else {
					return false;
				}
			} else {
				return false;
			}
		}

		public function setUpdatePackage( $options ) {
			$package = $options['package'];
			if ( $package === $this->pluginSlug ) {
				$response           = self::request( 'link' );
				$options['package'] =
					( is_wp_error( $response ) || empty( $response ) || ! empty( $response['error'] ) ) ?
						'' :
						$response['wordpress_plugin'];
			}

			return $options;
		}
	}
}

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<?php

/**

* Class SimpleLibPluginUpgrader.

* Author: minimus

* Date: 21.03.2016

* Time: 12:21

if ( ! class_exists( 'SimpleLibPluginUpgrader' ) ) {

class SimpleLibPluginUpgrader {

private $itemId = null;

private $personalToken = null;

private $currentVersion = null;

private $slug = null;

private $pluginSlug = null;

private $name = null;

private $homepage = '';

public $enabled = false;

public function __construct( $id, $data ) {

if ( ! empty( $id ) ) {

$this->itemId = $id;

$this->personalToken = ( isset( $data['token'] ) ) ? $data['token'] : null;

$this->currentVersion = ( isset( $data['version'] ) ) ? $data['version'] : null;

$this->slug = ( isset( $data['slug'] ) ) ? $data['slug'] : null;

$this->pluginSlug = ( isset( $data['pluginSlug'] ) ) ? $data['pluginSlug'] : null;

$this->name = ( isset( $data['name'] ) ) ? $data['name'] : null;

$this->homepage = ( isset( $data['homepage'] ) ) ? $data['homepage'] : '';

}

$this->enabled = self::is_enabled();

if ( $this->enabled ) {

add_filter( 'pre_set_site_transient_update_plugins', array( &$this, 'checkUpdate' ) );

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

add_filter( 'upgrader_package_options', array( &$this, 'setUpdatePackage' ) );

}

private function is_enabled() {

return (

! is_null( $this->itemId ) &&

! is_null( $this->personalToken ) &&

! is_null( $this->currentVersion ) &&

! is_null( $this->slug ) &&

! is_null( $this->pluginSlug ) &&

! is_null( $this->name )

);

}

private function getAttribute( $data, $name ) {

$out = '';

foreach ( $data as $key => $val ) {

if ( $val['name'] === $name ) {

switch ( $name ) {

case 'compatible-software':

$out = array(

'required' => str_replace( 'WordPress ', '', $val['value'][ count( $val['value'] ) - 1 ] ),

'tested' => str_replace( 'WordPress ', '', $val['value'][0] )

);

break;

default:

$out = false;

}

return $out;

}

public function request( $data = 'info' ) {

$args = array(

'headers' => array(

'Authorization' => 'Bearer ' . $this->personalToken,

'timeout' => 30,

);

switch ( $data ) {

case 'info':

$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;

break;

case 'link':

$url = 'https://api.envato.com/v2/market/buyer/download?item_id=' . $this->itemId . '&shorten_url=true';

break;

default:

$url = 'https://api.envato.com/v2/market/catalog/item?id=' . $this->itemId;

}

$response = wp_remote_get( esc_url_raw( $url ), $args );

$response_code = wp_remote_retrieve_response_code( $response );

$response_message = wp_remote_retrieve_response_message( $response );

if ( 200 !== $response_code && ! empty( $response_message ) ) {

return new WP_Error( $response_code, $response_message );

} elseif ( 200 !== $response_code ) {

return new WP_Error( $response_code, __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );

} else {

$out = json_decode( wp_remote_retrieve_body( $response ), true );

if ( null === $out ) {

return new WP_Error( 'api_error', __( 'An unknown API error occurred.', SAM_PRO_DOMAIN ) );

}

return $out;

}

public function checkUpdate( $transient ) {

if ( empty( $transient->checked ) ) {

return $transient;

}

$pluginInfo = self::request();

if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {

$info = $pluginInfo['wordpress_plugin_metadata'];

if ( version_compare( $this->currentVersion, $info['version'], '<' ) ) {

$plugin = new stdClass();

$plugin->slug = $this->slug;

$plugin->new_version = $info['version'];

$plugin->url = '';

$plugin->package = $this->pluginSlug;

$plugin->name = $info['plugin_name'];

$plugin->plugin = $this->pluginSlug;

$transient->response[ $this->pluginSlug ] = $plugin;

}

return $transient;

}

public function checkInfo( $result, $action, $args ) {

if ( $args->slug === $this->slug ) {

$pluginInfo = self::request();

if ( isset( $pluginInfo['wordpress_plugin_metadata'] ) ) {

$info = $pluginInfo['wordpress_plugin_metadata'];

$versions = self::getAttribute( $pluginInfo['attributes'], 'compatible-software' );

$sections = explode( '<h2 id="item-description__changelog">Changelog</h2>', $pluginInfo['description'] );

$description = ( isset( $sections[0] ) ) ? $sections[0] : '';

$changelog = ( isset( $sections[1] ) ) ? $sections[1] : '';

$plugin = new stdClass();

$plugin->name = $info['plugin_name'];

$plugin->author = $info['author'];

$plugin->slug = $this->slug;

$plugin->version = $info['version'];

$plugin->requires = $versions['required'];

$plugin->tested = $versions['tested'];

$plugin->rating = ( (int) $pluginInfo['rating']['count'] < 3 ) ? 100.0 : 20 * (float) $pluginInfo['rating']['rating'];

$plugin->num_ratings = (int) $pluginInfo['rating']['count'];

$plugin->active_installs = (int) $pluginInfo['number_of_sales'];

$plugin->last_updated = $pluginInfo['updated_at'];

$plugin->added = $pluginInfo['published_at'];

$plugin->homepage = $this->homepage;

$plugin->sections = array(

'description' => $description,

'changelog' => $changelog

);

$plugin->download_link = $pluginInfo['url'];

$plugin->banners = array(

'high' => $pluginInfo['previews']['landscape_preview']['landscape_url']

);

return $plugin;

} else {

return false;

}

} else {

return false;

}

public function setUpdatePackage( $options ) {

$package = $options['package'];

if ( $package === $this->pluginSlug ) {

$response = self::request( 'link' );

$options['package'] =

( is_wp_error( $response ) || empty( $response ) || ! empty( $response['error'] ) ) ?

'' :

$response['wordpress_plugin'];

}

return $options;

}

Just include this file in your project and use it.

SimpleLib The coding is simple!

Envato API. Upgrading plugin from WordPress

Script

The plan

Input Data

Getting Data from Envato API

Version Request

Plugin Info Request

Upgrading Plugin

Class Usage

Full Script Code

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