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Add 'lib/edd-license/' from commit '4d89977e753bf67b39c37516d0c61e8a2…
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git-subtree-dir: lib/edd-license
git-subtree-mainline: 85f1d37
git-subtree-split: 4d89977
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@Ritesh-patel
Ritesh-patel committed Oct 21, 2015
2 parents 85f1d37 + 4d89977 commit 9c2394a
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258 changes: 258 additions & 0 deletions lib/edd-license/EDD_License_Handler.php
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<?php
/**
* License handler for Easy Digital Downloads
*
* This class should simplify the process of adding license information
* to new EDD extensions.
*
* @version 1.1
*/

if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly

if ( ! class_exists( 'EDD_License' ) ) :

/**
* EDD_License Class
*/
class EDD_License {
private $file;
private $license;
private $item_name;
private $item_shortname;
private $version;
private $author;
private $api_url = 'https://easydigitaldownloads.com';

/**
* Class constructor
*
* @global array $edd_options
* @param string $_file
* @param string $_item_name
* @param string $_version
* @param string $_author
* @param string $_optname
* @param string $_api_url
*/
function __construct( $_file, $_item_name, $_version, $_author, $_optname = null, $_api_url = null ) {
global $edd_options;

$this->file = $_file;
$this->item_name = $_item_name;
$this->item_shortname = 'edd_' . preg_replace( '/[^a-zA-Z0-9_\s]/', '', str_replace( ' ', '_', strtolower( $this->item_name ) ) );
$this->version = $_version;
$this->license = isset( $edd_options[ $this->item_shortname . '_license_key' ] ) ? trim( $edd_options[ $this->item_shortname . '_license_key' ] ) : '';
$this->author = $_author;
$this->api_url = is_null( $_api_url ) ? $this->api_url : $_api_url;

/**
* Allows for backwards compatibility with old license options,
* i.e. if the plugins had license key fields previously, the license
* handler will automatically pick these up and use those in lieu of the
* user having to reactive their license.
*/
if ( ! empty( $_optname ) && isset( $edd_options[ $_optname ] ) && empty( $this->license ) ) {
$this->license = trim( $edd_options[ $_optname ] );
}

// Setup hooks
$this->includes();
$this->hooks();
$this->auto_updater();
}

/**
* Include the updater class
*
* @access private
* @return void
*/
private function includes() {
if ( ! class_exists( 'EDD_SL_Plugin_Updater' ) ) require_once 'EDD_SL_Plugin_Updater.php';
}

/**
* Setup hooks
*
* @access private
* @return void
*/
private function hooks() {
// Register settings
add_filter( 'edd_settings_licenses', array( $this, 'settings' ), 1 );

// Activate license key on settings save
add_action( 'admin_init', array( $this, 'activate_license' ) );

// Deactivate license key
add_action( 'admin_init', array( $this, 'deactivate_license' ) );
}

/**
* Auto updater
*
* @access private
* @global array $edd_options
* @return void
*/
private function auto_updater() {
// Setup the updater
$edd_updater = new EDD_SL_Plugin_Updater(
$this->api_url,
$this->file,
array(
'version' => $this->version,
'license' => $this->license,
'item_name' => $this->item_name,
'author' => $this->author
)
);
}


/**
* Add license field to settings
*
* @access public
* @param array $settings
* @return array
*/
public function settings( $settings ) {
$edd_license_settings = array(
array(
'id' => $this->item_shortname . '_license_key',
'name' => sprintf( __( '%1$s License Key', 'edd' ), $this->item_name ),
'desc' => '',
'type' => 'license_key',
'options' => array( 'is_valid_license_option' => $this->item_shortname . '_license_active' ),
'size' => 'regular'
)
);

return array_merge( $settings, $edd_license_settings );
}


/**
* Activate the license key
*
* @access public
* @return void
*/
public function activate_license() {
if ( ! isset( $_POST['edd_settings'] ) )
return;

if ( ! isset( $_POST['edd_settings'][ $this->item_shortname . '_license_key' ] ) )
return;

if ( 'valid' == get_option( $this->item_shortname . '_license_active' ) )
return;

$license = sanitize_text_field( $_POST['edd_settings'][ $this->item_shortname . '_license_key' ] );

// Data to send to the API
$api_params = array(
'edd_action' => 'activate_license',
'license' => $license,
'item_name' => urlencode( $this->item_name )
);

// Call the API
$response = wp_remote_get(
esc_url_raw( add_query_arg( $api_params, $this->api_url ) ),
array(
'timeout' => 15,
'body' => $api_params,
'sslverify' => false
)
);

// Make sure there are no errors
if ( is_wp_error( $response ) )
return;

// Decode license data
$license_data = json_decode( wp_remote_retrieve_body( $response ) );

update_option( $this->item_shortname . '_license_active', $license_data->license );
}


/**
* Deactivate the license key
*
* @access public
* @return void
*/
public function deactivate_license() {
if ( ! isset( $_POST['edd_settings'] ) )
return;

if ( ! isset( $_POST['edd_settings'][ $this->item_shortname . '_license_key' ] ) )
return;

// Run on deactivate button press
if ( isset( $_POST[ $this->item_shortname . '_license_key_deactivate' ] ) ) {

// Data to send to the API
$api_params = array(
'edd_action' => 'deactivate_license',
'license' => $this->license,
'item_name' => urlencode( $this->item_name )
);

// Call the API
$response = wp_remote_get(
esc_url_raw( add_query_arg( $api_params, $this->api_url ) ),
array(
'timeout' => 15,
'sslverify' => false
)
);

// Make sure there are no errors
if ( is_wp_error( $response ) )
return;

// Decode the license data
$license_data = json_decode( wp_remote_retrieve_body( $response ) );

if ( $license_data->license == 'deactivated' )
delete_option( $this->item_shortname . '_license_active' );
}
}
}

endif; // end class_exists check


/**
* Register the new license field type
*
* This has been included in core, but is maintained for backwards compatibility
*
* @return void
*/
if ( ! function_exists( 'edd_license_key_callback' ) ) {
function edd_license_key_callback( $args ) {
global $edd_options;

if ( isset( $edd_options[ $args['id'] ] ) )
$value = $edd_options[ $args['id'] ];
else
$value = isset( $args['std'] ) ? $args['std'] : '';

$size = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
$html = '<input type="text" class="' . $size . '-text" id="edd_settings[' . $args['id'] . ']" name="edd_settings[' . $args['id'] . ']" value="' . esc_attr( $value ) . '"/>';

if ( 'valid' == get_option( $args['options']['is_valid_license_option'] ) ) {
$html .= '<input type="submit" class="button-secondary" name="' . $args['id'] . '_deactivate" value="' . __( 'Deactivate License', 'edd-recurring' ) . '"/>';
}

$html .= '<label for="edd_settings[' . $args['id'] . ']"> ' . $args['desc'] . '</label>';

echo $html;
}
}
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