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121 lines
3.6 KiB
Ruby
121 lines
3.6 KiB
Ruby
# frozen_string_literal: true
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# == Schema Information
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#
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# Table name: web_push_subscriptions
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#
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# id :bigint(8) not null, primary key
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# endpoint :string not null
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# key_p256dh :string not null
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# key_auth :string not null
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# data :json
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# created_at :datetime not null
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# updated_at :datetime not null
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# access_token_id :bigint(8)
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# user_id :bigint(8)
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#
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class Web::PushSubscription < ApplicationRecord
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belongs_to :user, optional: true
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belongs_to :access_token, class_name: 'Doorkeeper::AccessToken', optional: true
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has_one :session_activation, foreign_key: 'web_push_subscription_id', inverse_of: :web_push_subscription, dependent: nil
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validates :endpoint, presence: true
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validates :key_p256dh, presence: true
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validates :key_auth, presence: true
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delegate :locale, to: :associated_user
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def encrypt(payload)
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Webpush::Encryption.encrypt(payload, key_p256dh, key_auth)
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end
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def audience
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@audience ||= Addressable::URI.parse(endpoint).normalized_site
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end
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def crypto_key_header
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p256ecdsa = vapid_key.public_key_for_push_header
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"p256ecdsa=#{p256ecdsa}"
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end
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def authorization_header
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jwt = JWT.encode({ aud: audience, exp: 24.hours.from_now.to_i, sub: "mailto:#{contact_email}" }, vapid_key.curve, 'ES256', typ: 'JWT')
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"WebPush #{jwt}"
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end
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def pushable?(notification)
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policy_allows_notification?(notification) && alert_enabled_for_notification_type?(notification)
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end
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def associated_user
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return @associated_user if defined?(@associated_user)
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@associated_user = if user_id.nil?
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session_activation.user
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else
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user
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end
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end
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def associated_access_token
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return @associated_access_token if defined?(@associated_access_token)
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@associated_access_token = if access_token_id.nil?
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find_or_create_access_token.token
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else
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access_token.token
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end
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end
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class << self
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def unsubscribe_for(application_id, resource_owner)
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access_token_ids = Doorkeeper::AccessToken.where(application_id: application_id, resource_owner_id: resource_owner.id, revoked_at: nil).pluck(:id)
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where(access_token_id: access_token_ids).delete_all
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end
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end
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private
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def find_or_create_access_token
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Doorkeeper::AccessToken.find_or_create_for(
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application: Doorkeeper::Application.find_by(superapp: true),
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resource_owner: user_id || session_activation.user_id,
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scopes: Doorkeeper::OAuth::Scopes.from_string('read write follow push'),
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expires_in: Doorkeeper.configuration.access_token_expires_in,
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use_refresh_token: Doorkeeper.configuration.refresh_token_enabled?
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)
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end
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def vapid_key
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@vapid_key ||= Webpush::VapidKey.from_keys(Rails.configuration.x.vapid_public_key, Rails.configuration.x.vapid_private_key)
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end
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def contact_email
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@contact_email ||= ::Setting.site_contact_email
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end
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def alert_enabled_for_notification_type?(notification)
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truthy?(data&.dig('alerts', notification.type.to_s))
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end
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def policy_allows_notification?(notification)
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case data&.dig('policy')
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when nil, 'all'
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true
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when 'none'
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false
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when 'followed'
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notification.account.following?(notification.from_account)
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when 'follower'
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notification.from_account.following?(notification.account)
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end
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end
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def truthy?(val)
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ActiveModel::Type::Boolean.new.cast(val)
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end
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end
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