1 files changed, 77 insertions, 0 deletions
diff --git a/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/class-wpcom-offline-subscription-service.php b/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/class-wpcom-offline-subscription-service.php
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+++ b/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/class-wpcom-offline-subscription-service.php
@@ -0,0 +1,77 @@
+<?php
+/**
+ * This subscription service is used when a subscriber is offline and a token is not available.
+ * This subscription service will be used when rendering content in email and reader on WPCOM only.
+ * When content is being rendered, the current user and site are set.
+ * This allows us to lookup a users subscriptions and determine if the
+ * offline visitor can view content that has been deemed "Premium content".
+ *
+ * @package Automattic\Jetpack\Extensions\Premium_Content
+ */
+
+namespace Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service;
+
+/**
+ * Class WPCOM_Offline_Subscription_Service
+ *
+ * @package Automattic\Jetpack\Extensions\Premium_Content\Subscription_Service
+ */
+class WPCOM_Offline_Subscription_Service extends WPCOM_Token_Subscription_Service {
+
+	/**
+	 * Is available()
+	 *
+	 * @return bool
+	 */
+	public static function available() {
+		// Return available if the user is logged in and either
+		// running a job (sending email subscription) OR
+		// handling API request on WPCOM (reader).
+		return (
+			( defined( 'WPCOM_JOBS' ) && WPCOM_JOBS ) ||
+			( defined( 'IS_WPCOM' ) && IS_WPCOM === true && ( defined( 'REST_API_REQUEST' ) && REST_API_REQUEST ) )
+			) && is_user_logged_in();
+	}
+
+	/**
+	 * Lookup users subscriptions for a site and determine if the user has a valid subscription to match the plan ID
+	 *
+	 * @param array $valid_plan_ids .
+	 * @return bool
+	 */
+	public function visitor_can_view_content( $valid_plan_ids ) {
+		/** This filter is already documented in projects/plugins/jetpack/extensions/blocks/premium-content/_inc/subscription-service/class-token-subscription-service.php */
+		$subscriptions = apply_filters( 'earn_get_user_subscriptions_for_site_id', array(), wp_get_current_user()->ID, $this->get_site_id() );
+		if ( empty( $subscriptions ) ) {
+			return false;
+		}
+		// format the subscriptions so that they can be validated.
+		$subscriptions = self::abbreviate_subscriptions( $subscriptions );
+		return $this->validate_subscriptions( $valid_plan_ids, $subscriptions );
+	}
+
+	/**
+	 * Report the subscriptions as an ID => [ 'end_date' => ]. mapping
+	 *
+	 * @param array $subscriptions_from_bd .
+	 *
+	 * @return array<int, array>
+	 */
+	public static function abbreviate_subscriptions( $subscriptions_from_bd ) {
+		$subscriptions = array();
+		foreach ( $subscriptions_from_bd as $subscription ) {
+			// We are picking the expiry date that is the most in the future.
+			if (
+				'active' === $subscription['status'] && (
+					! isset( $subscriptions[ $subscription['product_id'] ] ) ||
+					empty( $subscription['end_date'] ) || // Special condition when subscription has no expiry date - we will default to a year from now for the purposes of the token.
+					strtotime( $subscription['end_date'] ) > strtotime( (string) $subscriptions[ $subscription['product_id'] ]->end_date )
+				)
+			) {
+				$subscriptions[ $subscription['product_id'] ]           = new \stdClass();
+				$subscriptions[ $subscription['product_id'] ]->end_date = empty( $subscription['end_date'] ) ? ( time() + 365 * 24 * 3600 ) : $subscription['end_date'];
+			}
+		}
+		return $subscriptions;
+	}
+}