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Simple PHP class for interacting with the Envato API within a WordPress plugin
<?php
/**
* Exception handling class.
*/
class EnvatoException extends Exception {
}
class envato_api_basic {
private static $instance = null;
public static function getInstance() {
if ( is_null( self::$instance ) ) {
self::$instance = new self();
}
return self::$instance;
}
private $_api_url = 'https://api.envato.com/';
private $_client_id = false;
private $_client_secret = false;
private $_personal_token = false;
private $_redirect_url = false;
private $_cookie = false;
private $token = false; // token returned from oauth
private $ch = false; // curl
public function set_client_id( $token ) {
$this->_client_id = $token;
}
public function set_client_secret( $token ) {
$this->_client_secret = $token;
}
public function set_personal_token( $token ) {
$this->_personal_token = $token;
}
public function set_redirect_url( $token ) {
$this->_redirect_url = $token;
}
public function set_cookie( $cookie ) {
$this->_cookie = $cookie;
}
public function api( $endpoint, $params = array(), $personal = true ) {
$headers = array(
'user-agent' => 'dtbaker API Class',
'timeout' => 20,
);
if ( $personal && ! empty( $this->_personal_token ) ) {
$headers['headers'] = array(
'Authorization' => 'Bearer ' . $this->_personal_token,
);
} else if ( ! empty( $this->token['access_token'] ) ) {
$headers['headers'] = array(
'Authorization' => 'Bearer ' . $this->token['access_token'],
);
}
$response = wp_remote_get( $this->_api_url . $endpoint, $headers );
if ( is_array( $response ) && isset( $response['body'] ) && isset( $response['response']['code'] ) && $response['response']['code'] == 200 ) {
$header = $response['headers'];
$body = @json_decode( $response['body'], true );
if ( ! $body ) {
echo 'Error';
}
return $body;
} else if ( is_array( $response ) && isset( $response['response']['code'] ) && $response['response']['code'] ) {
echo 'API Error';
} else if ( is_wp_error( $response ) ) {
echo 'API Error';
}
return false;
}
public function curl_init() {
if ( ! function_exists( 'curl_init' ) ) {
echo 'Please contact hosting provider and enable CURL for PHP';
return false;
}
$this->ch = curl_init();
curl_setopt( $this->ch, CURLOPT_RETURNTRANSFER, true );
@curl_setopt( $this->ch, CURLOPT_FOLLOWLOCATION, true );
curl_setopt( $this->ch, CURLOPT_CONNECTTIMEOUT, 10 );
curl_setopt( $this->ch, CURLOPT_TIMEOUT, 20 );
curl_setopt( $this->ch, CURLOPT_HEADER, false );
curl_setopt( $this->ch, CURLOPT_USERAGENT, "Envato Simple PHP Class dtbaker" );
}
public function get_url( $url, $post = false, $extra_headers = array() ) {
if ( $this->ch ) {
curl_close( $this->ch );
}
$this->curl_init();
curl_setopt( $this->ch, CURLOPT_URL, $url );
if ( $extra_headers ) {
curl_setopt( $this->ch, CURLOPT_HTTPHEADER, $extra_headers );
}
if ( is_string( $post ) && strlen( $post ) ) {
curl_setopt( $this->ch, CURLOPT_POST, true );
curl_setopt( $this->ch, CURLOPT_POSTFIELDS, $post );
} else if ( is_array( $post ) && count( $post ) ) {
curl_setopt( $this->ch, CURLOPT_POST, true );
curl_setopt( $this->ch, CURLOPT_POSTFIELDS, $post );
} else {
curl_setopt( $this->ch, CURLOPT_POST, 0 );
}
return curl_exec( $this->ch );
}
/**
* OAUTH STUFF
*/
public function get_authorization_url() {
return 'https://api.envato.com/authorization?response_type=code&client_id=' . $this->_client_id . "&redirect_uri=" . urlencode( $this->_redirect_url );
}
public function get_token_url() {
return 'https://api.envato.com/token';
}
public function get_authentication( $code ) {
$url = $this->get_token_url();
$parameters = array();
$parameters['grant_type'] = "authorization_code";
$parameters['code'] = $code;
$parameters['redirect_uri'] = $this->_redirect_url;
$parameters['client_id'] = $this->_client_id;
$parameters['client_secret'] = $this->_client_secret;
$fields_string = '';
foreach ( $parameters as $key => $value ) {
$fields_string .= $key . '=' . urlencode( $value ) . '&';
}
try {
$response = $this->get_url( $url, $fields_string, false, false );
} catch ( EnvatoException $e ) {
echo 'OAuth API Fail: ' . $e->__toString();
return false;
}
$this->token = json_decode( $response, true );
return $this->token;
}
public function set_manual_token( $token ) {
$this->token = $token;
}
public function refresh_token() {
$url = $this->get_token_url();
$parameters = array();
$parameters['grant_type'] = "refresh_token";
$parameters['refresh_token'] = $this->token['refresh_token'];
$parameters['redirect_uri'] = $this->_redirect_url;
$parameters['client_id'] = $this->_client_id;
$parameters['client_secret'] = $this->_client_secret;
$fields_string = '';
foreach ( $parameters as $key => $value ) {
$fields_string .= $key . '=' . urlencode( $value ) . '&';
}
try {
$response = $this->get_url( $url, $fields_string, false, false );
} catch ( EnvatoException $e ) {
echo 'OAuth API Fail: ' . $e->__toString();
return false;
}
$new_token = json_decode( $response, true );
$this->token['access_token'] = $new_token['access_token'];
return $this->token['access_token'];
}
}
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