BSF_License_Manager::bsf_activate_license()

		public function bsf_activate_license() {

			if ( ! isset( $_POST['bsf_activate_license'] ) ) {
				return;
			}

			if ( ! isset( $_POST['bsf_graupi_nonce'] ) || ( isset( $_POST['bsf_graupi_nonce'] ) && ! wp_verify_nonce( $_POST['bsf_graupi_nonce'], 'bsf_license_activation_deactivation_nonce' ) ) ) {

				return;
			}

			if ( ! isset( $_POST['bsf_license_manager']['license_key'] ) || empty( $_POST['bsf_license_manager']['license_key'] ) ) {
				return;
			}

			if ( ! isset( $_POST['bsf_license_manager']['product_id'] ) || empty( $_POST['bsf_license_manager']['product_id'] ) ) {
				return;
			}

			$license_key              = esc_attr( $_POST['bsf_license_manager']['license_key'] );
			$product_id               = esc_attr( $_POST['bsf_license_manager']['product_id'] );
			$user_name                = isset( $_POST['bsf_license_manager']['user_name'] ) ? esc_attr( $_POST['bsf_license_manager']['user_name'] ) : '';
			$user_email               = isset( $_POST['bsf_license_manager']['user_email'] ) ? esc_attr( $_POST['bsf_license_manager']['user_email'] ) : '';
			$privacy_consent          = ( isset( $_POST['bsf_license_manager']['privacy_consent'] ) && 'true' === $_POST['bsf_license_manager']['privacy_consent'] ) ? true : false;
			$terms_conditions_consent = ( isset( $_POST['bsf_license_manager']['terms_conditions_consent'] ) && 'true' === $_POST['bsf_license_manager']['terms_conditions_consent'] ) ? true : false;

			// Check if the key is from EDD.
			$is_edd = $this->is_edd( $license_key );

			// Server side check if the license key is valid.
			$path = bsf_get_api_url() . '?referer=activate-' . $product_id;

			// Using Brainstorm API v2.
			$data = array(
				'action'                   => 'bsf_activate_license',
				'purchase_key'             => $license_key,
				'product_id'               => $product_id,
				'user_name'                => $user_name,
				'user_email'               => $user_email,
				'privacy_consent'          => $privacy_consent,
				'terms_conditions_consent' => $terms_conditions_consent,
				'site_url'                 => get_site_url(),
				'is_edd'                   => $is_edd,
				'referer'                  => 'customer',
			);

			$data     = apply_filters( 'bsf_activate_license_args', $data );
			$response = wp_remote_post(
				$path,
				array(
					'body'    => $data,
					'timeout' => '15',
				)
			);

			if ( ! is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) === 200 ) {
				$result = json_decode( wp_remote_retrieve_body( $response ), true );

				if ( isset( $result['success'] ) && ( true === $result['success'] || 'true' === $result['success'] ) ) {
					// update license saus to the product.
					$_POST['bsf_license_activation']['success'] = $result['success'];
					$_POST['bsf_license_activation']['message'] = $result['message'];
					unset( $result['success'] );

					// Update product key.
					$result['purchase_key'] = $license_key;

					$this->bsf_update_product_info( $product_id, $result );

					do_action( 'bsf_activate_license_' . $product_id . '_after_success', $result, $response, $_POST );

				} else {
					$_POST['bsf_license_activation']['success'] = $result['success'];
					$_POST['bsf_license_activation']['message'] = $result['message'];
				}
			} else {
				$_POST['bsf_license_activation']['success'] = false;
				$_POST['bsf_license_activation']['message'] = 'There was an error when connecting to our license API - <pre class="bsf-pre">' . $response->get_error_message() . '</pre>';
			}

			// Delete license key status transient.
			delete_transient( $product_id . '_license_status' );

		}