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<?php
/**
* Envato Elements: Extensions API
*
* Extensions API
*
* @package Envato/Envato_Elements
* @since 2.0.0
*/
namespace Envato_Elements\Utils;
use Envato_Elements\Backend\Subscription;
use Envato_Elements\Backend\Options;
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
/**
* Extensions API
*
* @since 2.0.0
*/
class Extensions_API extends Base {
/**
* @var string
*
* @since 0.0.9
*/
private $api_endpoint = 'https://api.extensions.envato.com';
/**
* @var string
*
* @since 0.0.9
*/
private $token = '';
public function __construct() {
if ( defined( 'ELEMENTS_API_HOSTNAME' ) ) {
$this->api_endpoint = ELEMENTS_API_HOSTNAME;
}
}
public function set_token( $token = false ) {
if ( ! $token ) {
$elements_token = Options::get_instance()->get( Subscription::SUBSCRIPTION_TOKEN_OPTION );
if ( $elements_token && ! empty( $elements_token['token'] ) ) {
$token = $elements_token['token'];
}
}
$this->token = $token;
}
public function get_token() {
return $this->token;
}
public function get_extension_id() {
// Our legacy extension ID was the license code, check if we've got one prior to v2
$legacy_extension_id = Options::get_instance()->get( 'license_code' );
if ( $legacy_extension_id ) {
return $legacy_extension_id;
}
// Default to a hash of the site url for the extension ID
return md5( get_site_url() );
}
private function encode_url_parameter( $parameter ) {
$parameter = html_entity_decode( $parameter, ENT_QUOTES | ENT_XML1, 'UTF-8' );
$parameter = str_replace( '#', '', $parameter );
return urlencode( $parameter );
}
public function get_token_url() {
$extension_description = trim( Options::get_instance()->get( 'project_name', get_bloginfo( 'name' ) ) );
if ( strlen( $extension_description ) > 0 ) {
$extension_description .= ' (' . get_home_url() . ')';
} else {
$extension_description = get_home_url();
}
$extension_description = substr( $extension_description, 0, 254 );
return $this->api_endpoint . "/extensions/begin_activation?extension_id=" . $this->get_extension_id() . "&extension_type=envato-wordpress&extension_description=" . $this->encode_url_parameter( $extension_description );
}
/**
*
* @param $endpoint
* @param string $method
* @param array $body_args
*
* @return \stdClass|\WP_Error
*/
public function api_call( $endpoint, $method = 'GET', $body_args = [] ) {
if ( ! $this->token ) {
$this->set_token();
}
$http_args = [
'user-agent' => 'Mozilla/5.0 (Envato Elements ' . ENVATO_ELEMENTS_VER . ';) ' . home_url(),
'timeout' => 15,
'headers' => [ 'Extensions-Extension-Id' => $this->get_extension_id() ]
];
if ( $this->token ) {
$http_args['headers']['Extensions-Token'] = $this->token;
}
foreach ( [ true, false, ] as $sslverify ) {
// Unfortunately some hosts ONLY work with sslverify true, and some ONLY work with sslverify false.
// So we cannot just hard code it to false, we have to try both. SSL first, then broken SSL if that fails.
$http_args['sslverify'] = $sslverify;
if ( $method == 'GET' ) {
$response = wp_safe_remote_get( $this->api_endpoint . $endpoint, $http_args );
} else {
$http_args['headers']['Content-Type'] = 'application/json';
$http_args['body'] = json_encode( $body_args );
$http_args['data_format'] = 'body';
$response = wp_safe_remote_post( $this->api_endpoint . $endpoint, $http_args );
}
if ( $response && ! is_wp_error( $response ) ) {
break;
}
}
if ( is_wp_error( $response ) ) {
return $response;
}
$raw_response = wp_remote_retrieve_body( $response );
$data = json_decode( $raw_response, true );
$response_code = wp_remote_retrieve_response_code( $response );
// $response_code = 401;$data = [ 'error' => [ 'code'=>'token_expired', 'message'=>'errormsg' ] ];
// $response_code = 403;$data = [ 'error' => [ 'code'=>'download_forbidden', 'message'=>'errormsg' ] ];
// $response_code = 404;$data = [ 'error' => [ 'code'=>'item_not_found', 'message'=>'errormsg' ] ];
// $response_code = 503;$data = 'Unavailable';
$error_message_to_display = 'Unknown error';
if ( empty( $data ) || ! is_array( $data ) ) {
// Did the response contain HTML instead of json?
if ( strlen( $raw_response ) && ! $data ) {
// we failed to decode the response into JSON
$error_message_to_display = 'The API did not respond with valid JSON data.';
}
return new \WP_Error( 'no_json', $error_message_to_display, [
__( 'An error occurred, please try again', 'envato-elements' ),
var_export( wp_remote_retrieve_body( $response ), true )
] );
}
if ( 200 !== (int) $response_code && 201 !== (int) $response_code ) {
$error_message_to_display = __( 'HTTP Error', 'envato-elements' );
if ( $data && ! empty( $data['message'] ) ) {
$error_message_to_display = $data['message'];
}
if ( $data && ! empty( $data['error'] ) && ! empty( $data['error']['message'] ) ) {
$error_message_to_display = $data['error']['message'];
}
// format our error response data into something easier to parse
return new \WP_Error( $response_code, $error_message_to_display, $data && ! empty( $data['error'] ) ? $data['error'] : $data );
}
return $data;
}
}
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