mastodon/app/models/web/push_subscription.rb
Eugen Rochko 4b94e9c65e
Improve payload format of Web Push API now that it's open (#7521)
> Good lord what is happening in there

Previously the contents of the Web Push API payloads closely resembled the structure of JavaScript's [Notification](https://developer.mozilla.org/en-US/docs/Web/API/Notification). But now that the API is open to non-browser apps, and given that there is no required coupling between contents of the payload and a Notification object, here is how I changed the payload:

```json
{ 
  "access_token": "...",
  "preferred_locale": "en",
  "notification_id": "12345",
  "notification_type": "follow",
  "title": "So and so followed you",
  "body": "This is my bio",
  "icon": "https://example.com/avatar.png"
}
```

The title, body and icon attributes are included as a fallback so you can construct a minimal notification if you cannot perform a network request to the API to get more data.
2018-05-19 14:46:47 +02:00

88 lines
2.6 KiB
Ruby

# frozen_string_literal: true
# == Schema Information
#
# Table name: web_push_subscriptions
#
# id :bigint(8) not null, primary key
# endpoint :string not null
# key_p256dh :string not null
# key_auth :string not null
# data :json
# created_at :datetime not null
# updated_at :datetime not null
# access_token_id :bigint(8)
# user_id :bigint(8)
#
class Web::PushSubscription < ApplicationRecord
belongs_to :user, optional: true
belongs_to :access_token, class_name: 'Doorkeeper::AccessToken', optional: true
has_one :session_activation
def push(notification)
I18n.with_locale(associated_user&.locale || I18n.default_locale) do
push_payload(payload_for_notification(notification), 48.hours.seconds)
end
end
def pushable?(notification)
data&.key?('alerts') && ActiveModel::Type::Boolean.new.cast(data['alerts'][notification.type.to_s])
end
def associated_user
return @associated_user if defined?(@associated_user)
@associated_user = if user_id.nil?
session_activation.user
else
user
end
end
def associated_access_token
return @associated_access_token if defined?(@associated_access_token)
@associated_access_token = if access_token_id.nil?
find_or_create_access_token.token
else
access_token.token
end
end
private
def push_payload(message, ttl = 5.minutes.seconds)
Webpush.payload_send(
message: Oj.dump(message),
endpoint: endpoint,
p256dh: key_p256dh,
auth: key_auth,
ttl: ttl,
vapid: {
subject: "mailto:#{::Setting.site_contact_email}",
private_key: Rails.configuration.x.vapid_private_key,
public_key: Rails.configuration.x.vapid_public_key,
}
)
end
def payload_for_notification(notification)
ActiveModelSerializers::SerializableResource.new(
notification,
serializer: Web::NotificationSerializer,
scope: self,
scope_name: :current_push_subscription
).as_json
end
def find_or_create_access_token
Doorkeeper::AccessToken.find_or_create_for(
Doorkeeper::Application.find_by(superapp: true),
session_activation.user_id,
Doorkeeper::OAuth::Scopes.from_string('read write follow push'),
Doorkeeper.configuration.access_token_expires_in,
Doorkeeper.configuration.refresh_token_enabled?
)
end
end