/// <summary>
/// 指定提供者发布通知
/// </summary>
/// <param name="providers">提供者列表</param>
/// <param name="notificationInfo">通知信息</param>
/// <returns></returns>
protected async Task PublishFromProvidersAsync(IEnumerable <INotificationPublishProvider> providers,
NotificationInfo notificationInfo)
{
Logger.LogDebug($"Persistent notification {notificationInfo.Name}");
// 持久化通知
await NotificationStore.InsertNotificationAsync(notificationInfo);
// TODO: 某些情况下,不能直接在服务内订阅消息,目前只能通过将订阅内容放进消息内部,需要重构通知系统设计了
if (notificationInfo.Data.HasUserNotification(out Guid userId, out string userName))
{
await NotificationSubscriptionManager.SubscribeAsync(notificationInfo.TenantId,
new UserIdentifier(userId, userName), notificationInfo.Name);
}
Logger.LogDebug($"Gets a list of user subscriptions {notificationInfo.Name}");
// 获取用户订阅列表
var userSubscriptions = await NotificationSubscriptionManager.GetSubscriptionsAsync(notificationInfo.TenantId, notificationInfo.Name);
Logger.LogDebug($"Persistent user notifications {notificationInfo.Name}");
// 持久化用户通知
var subscriptionUserIdentifiers = userSubscriptions.Select(us => new UserIdentifier(us.UserId, us.UserName));
await NotificationStore.InsertUserNotificationsAsync(notificationInfo,
subscriptionUserIdentifiers.Select(u => u.UserId));
// 发布通知
foreach (var provider in providers)
{
await PublishAsync(provider, notificationInfo, subscriptionUserIdentifiers);
}
if (notificationInfo.Lifetime == NotificationLifetime.OnlyOne)
{
// 一次性通知在发送完成后就取消用户订阅
await NotificationStore.DeleteAllUserSubscriptionAsync(notificationInfo.TenantId,
notificationInfo.Name);
}
}
public override async Task PublishAsync(NotificationInfo notification, IEnumerable <UserIdentifier> identifiers)
{
// step1 默认微信openid绑定的就是username,
// 如果不是,需要自行处理openid获取逻辑
// step2 调用微信消息推送接口
// 微信不支持推送到所有用户,需要获取订阅列表再发送
// 在小程序里用户订阅消息后通过 api/subscribes/subscribe 接口订阅对应模板消息
if (identifiers == null)
{
var userSubscriptions = await NotificationSubscriptionManager
.GetSubscriptionsAsync(notification.TenantId, notification.Name);
identifiers = userSubscriptions
.Select(us => new UserIdentifier(us.UserId, us.UserName));
}
foreach (var identifier in identifiers)
{
await SendWeChatTemplateMessagAsync(notification, identifier);
}
}
