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class NotificationRecipient
attr_reader :user, :type
def initialize(
user, type,
custom_action: nil,
target: nil,
acting_user: nil,
project: nil,
group: nil,
skip_read_ability: false
)
unless NotificationSetting.levels.key?(type) || type == :subscription
raise ArgumentError, "invalid type: #{type.inspect}"
end
@custom_action = custom_action
@acting_user = acting_user
@target = target
@project = project || default_project
@group = group || @project&.group
@user = user
@type = type
@skip_read_ability = skip_read_ability
end
def notification_setting
@notification_setting ||= find_notification_setting
end
def notification_level
@notification_level ||= notification_setting&.level&.to_sym
end
def notifiable?
return false unless has_access?
return false if own_activity?
# even users with :disabled notifications receive manual subscriptions
return !unsubscribed? if @type == :subscription
return false unless suitable_notification_level?
# check this last because it's expensive
# nobody should receive notifications if they've specifically unsubscribed
return false if unsubscribed?
true
end
def suitable_notification_level?
case notification_level
when :disabled, nil
false
when :custom
custom_enabled? || %i[participating mention].include?(@type)
when :watch, :participating
!excluded_watcher_action?
when :mention
@type == :mention
else
false
end
end
def custom_enabled?
@custom_action && notification_setting&.event_enabled?(@custom_action)
end
def unsubscribed?
return false unless @target
return false unless @target.respond_to?(:subscriptions)
subscription = @target.subscriptions.find_by_user_id(@user.id)
subscription && !subscription.subscribed
end
def own_activity?
return false unless @acting_user
return false if @acting_user.notified_of_own_activity?
user == @acting_user
end
def has_access?
DeclarativePolicy.subject_scope do
return false unless user.can?(:receive_notifications)
return true if @skip_read_ability
return false if @project && !user.can?(:read_project, @project)
return true unless read_ability
return true unless DeclarativePolicy.has_policy?(@target)
user.can?(read_ability, @target)
end
end
def excluded_watcher_action?
return false unless @custom_action
return false if notification_level == :custom
NotificationSetting::EXCLUDED_WATCHER_EVENTS.include?(@custom_action)
end
private
def read_ability
return nil if @skip_read_ability
return @read_ability if instance_variable_defined?(:@read_ability)
@read_ability =
case @target
when Issuable
:"read_#{@target.to_ability_name}"
when Ci::Pipeline
:read_build # We have build trace in pipeline emails
when ActiveRecord::Base
:"read_#{@target.class.model_name.name.underscore}"
else
nil
end
end
def default_project
return nil if @target.nil?
return @target if @target.is_a?(Project)
return @target.project if @target.respond_to?(:project)
end
def find_notification_setting
project_setting = @project && user.notification_settings_for(@project)
return project_setting unless project_setting.nil? || project_setting.global?
group_setting = @group && user.notification_settings_for(@group)
return group_setting unless group_setting.nil? || group_setting.global?
user.global_notification_setting
end
end
|
