470 lines
13 KiB
Ruby
470 lines
13 KiB
Ruby
#
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# Used by NotificationService to determine who should receive notification
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#
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class NotificationRecipientService
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attr_reader :project
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def self.notification_setting_for_user_project(user, project)
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project_setting = project && user.notification_settings_for(project)
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return project_setting unless project_setting.nil? || project_setting.global?
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group_setting = project&.group && user.notification_settings_for(project.group)
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return group_setting unless group_setting.nil? || group_setting.global?
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user.global_notification_setting
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end
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def initialize(project)
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@project = project
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end
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class Recipient
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attr_reader :user, :type
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def initialize(builder, user, type)
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@builder = builder
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@user = user
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@type = type
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end
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def notification_setting
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@notification_setting ||=
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NotificationRecipientService.notification_setting_for_user_project(user, @builder.project)
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end
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def raw_notification_level
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notification_setting&.level&.to_sym
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end
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def notification_level
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# custom is treated the same as watch if it's enabled - otherwise it's
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# as :disabled.
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@notification_level ||=
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case raw_notification_level
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when :custom
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notification_setting.event_enabled?(@builder.custom_action) ? :watch : :custom
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else
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raw_notification_level
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end
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end
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def notifiable?
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return false unless has_access?
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return false if own_activity?
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return true if @type == :subscription
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return false if notification_level.nil? || notification_level == :disabled
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return %i[participating mention].include?(@type) if notification_level == :custom
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return false if %i[watch participating].include?(notification_level) && excluded_watcher_action?
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return false unless NotificationSetting.levels[notification_level] <= NotificationSetting.levels[type]
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return false if unsubscribed?
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true
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end
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def unsubscribed?
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return false unless @builder.target.respond_to?(:subscriptions)
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subscription = @builder.target.subscriptions.find_by_user_id(@user.id)
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subscription && !subscription.subscribed
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end
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def own_activity?
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return false unless @builder.acting_user
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return false if @builder.acting_user.notified_of_own_activity?
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user == @builder.acting_user
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end
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def has_access?
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return false unless user.can?(:receive_notifications)
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return true unless @builder.read_ability
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DeclarativePolicy.subject_scope do
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user.can?(@builder.read_ability, @builder.target)
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end
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end
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def excluded_watcher_action?
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return false if raw_notification_level == :custom
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NotificationSetting::EXCLUDED_WATCHER_EVENTS.include?(@builder.custom_action)
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end
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end
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module Builder
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class Base
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def initialize(*)
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raise 'abstract'
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end
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def build!
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raise 'abstract'
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end
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def filter!
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recipients.select!(&:notifiable?)
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end
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def acting_user
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current_user
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end
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def target
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raise 'abstract'
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end
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def recipients
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@recipients ||= []
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end
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def <<(arg)
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users, type = arg
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users = Array(users)
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users.compact!
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recipients.concat(users.map { |u| Recipient.new(self, u, type) })
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end
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def recipient_users
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@recipient_users ||=
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begin
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build!
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filter!
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users = recipients.map(&:user)
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users.uniq!
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users.freeze
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end
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end
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def read_ability
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@read_ability ||=
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case target
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when Issuable
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:"read_#{target.to_ability_name}"
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when Ci::Pipeline
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:read_build # We have build trace in pipeline emails
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end
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end
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protected
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def add_participants(user)
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return unless target.respond_to?(:participants)
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self << [target.participants(user), :watch]
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end
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# Get project/group users with CUSTOM notification level
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def add_custom_notifications
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user_ids = []
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# Users with a notification setting on group or project
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user_ids += user_ids_notifiable_on(project, :custom)
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user_ids += user_ids_notifiable_on(project.group, :custom)
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# Users with global level custom
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user_ids_with_project_level_global = user_ids_notifiable_on(project, :global)
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user_ids_with_group_level_global = user_ids_notifiable_on(project.group, :global)
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global_users_ids = user_ids_with_project_level_global.concat(user_ids_with_group_level_global)
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user_ids += user_ids_with_global_level_custom(global_users_ids, custom_action)
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self << [User.find(user_ids), :watch]
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end
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def add_project_watchers
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self << [project_watchers, :watch]
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end
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# Get project users with WATCH notification level
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def project_watchers
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project_members_ids = user_ids_notifiable_on(project)
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user_ids_with_project_global = user_ids_notifiable_on(project, :global)
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user_ids_with_group_global = user_ids_notifiable_on(project.group, :global)
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user_ids = user_ids_with_global_level_watch((user_ids_with_project_global + user_ids_with_group_global).uniq)
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user_ids_with_project_setting = select_project_members_ids(project, user_ids_with_project_global, user_ids)
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user_ids_with_group_setting = select_group_members_ids(project.group, project_members_ids, user_ids_with_group_global, user_ids)
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User.where(id: user_ids_with_project_setting.concat(user_ids_with_group_setting).uniq).to_a
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end
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def add_subscribed_users
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return unless target.respond_to? :subscribers
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self << [target.subscribers(project), :subscription]
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end
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def user_ids_notifiable_on(resource, notification_level = nil)
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return [] unless resource
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scope = resource.notification_settings
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if notification_level
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scope = scope.where(level: NotificationSetting.levels[notification_level])
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end
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scope.pluck(:user_id)
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end
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# Build a list of user_ids based on project notification settings
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def select_project_members_ids(project, global_setting, user_ids_global_level_watch)
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user_ids = user_ids_notifiable_on(project, :watch)
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# If project setting is global, add to watch list if global setting is watch
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global_setting.each do |user_id|
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if user_ids_global_level_watch.include?(user_id)
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user_ids << user_id
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end
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end
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user_ids
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end
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# Build a list of user_ids based on group notification settings
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def select_group_members_ids(group, project_members, global_setting, user_ids_global_level_watch)
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uids = user_ids_notifiable_on(group, :watch)
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# Group setting is watch, add to user_ids list if user is not project member
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user_ids = []
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uids.each do |user_id|
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if project_members.exclude?(user_id)
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user_ids << user_id
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end
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end
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# Group setting is global, add to user_ids list if global setting is watch
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global_setting.each do |user_id|
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if project_members.exclude?(user_id) && user_ids_global_level_watch.include?(user_id)
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user_ids << user_id
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end
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end
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user_ids
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end
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def user_ids_with_global_level_watch(ids)
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settings_with_global_level_of(:watch, ids).pluck(:user_id)
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end
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def user_ids_with_global_level_custom(ids, action)
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settings = settings_with_global_level_of(:custom, ids)
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settings = settings.select { |setting| setting.event_enabled?(action) }
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settings.map(&:user_id)
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end
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def settings_with_global_level_of(level, ids)
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NotificationSetting.where(
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user_id: ids,
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source_type: nil,
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level: NotificationSetting.levels[level]
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)
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end
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def reject_unsubscribed_users
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return unless target.respond_to? :subscriptions
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recipients.reject! do |recipient|
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user = recipient.user
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subscription = target.subscriptions.find_by_user_id(user.id)
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subscription && !subscription.subscribed
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end
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end
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def reject_users_without_access
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recipients.select! { |r| r.user.can?(:receive_notifications) }
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return unless read_ability
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DeclarativePolicy.subject_scope do
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recipients.select! do |recipient|
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recipient.user.can?(read_ability, target)
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end
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end
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end
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def reject_user(user)
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recipients.reject! { |r| r.user == user }
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end
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def add_labels_subscribers(labels: nil)
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return unless target.respond_to? :labels
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(labels || target.labels).each do |label|
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self << [label.subscribers(project), :subscription]
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end
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end
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end
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class Default < Base
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attr_reader :project
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attr_reader :target
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attr_reader :current_user
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attr_reader :action
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attr_reader :previous_assignee
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attr_reader :skip_current_user
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def initialize(project, target, current_user, action:, previous_assignee: nil, skip_current_user: true)
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@project = project
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@target = target
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@current_user = current_user
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@action = action
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@previous_assignee = previous_assignee
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@skip_current_user = skip_current_user
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end
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def build!
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add_participants(current_user)
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add_project_watchers
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add_custom_notifications
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# Re-assign is considered as a mention of the new assignee
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case custom_action
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when :reassign_merge_request
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self << [previous_assignee, :mention]
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self << [target.assignee, :mention]
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when :reassign_issue
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previous_assignees = Array(previous_assignee)
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self << [previous_assignees, :mention]
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self << [target.assignees, :mention]
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end
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add_subscribed_users
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if [:new_issue, :new_merge_request].include?(custom_action)
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add_labels_subscribers
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end
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end
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def acting_user
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current_user if skip_current_user
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end
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# Build event key to search on custom notification level
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# Check NotificationSetting::EMAIL_EVENTS
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def custom_action
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@custom_action ||= "#{action}_#{target.class.model_name.name.underscore}".to_sym
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end
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end
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class Pipeline < Base
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attr_reader :project
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attr_reader :target
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attr_reader :current_user
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attr_reader :action
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def initialize(project, target, current_user, action:)
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@project = project
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@target = target
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@current_user = current_user
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@action = action
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end
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def acting_user
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nil
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end
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def custom_action
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case action.to_s
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when 'failed'
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:failed_pipeline
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when 'success'
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:success_pipeline
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end
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end
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def build!
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return [] unless current_user
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self << [current_user, :watch]
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end
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end
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class Relabeled < Base
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attr_reader :project
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attr_reader :target
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attr_reader :current_user
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attr_reader :labels
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def initialize(project, target, current_user, labels:)
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@project = project
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@target = target
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@current_user = current_user
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@labels = labels
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end
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def build!
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add_labels_subscribers(labels: labels)
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end
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end
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class NewNote < Base
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attr_reader :project
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attr_reader :note
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attr_reader :target
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def initialize(project, note)
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@project = project
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@note = note
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@target = note.noteable
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end
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def read_ability
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@read_ability ||=
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case target
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when Commit then nil
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else :"read_#{target.class.model_name.name.underscore}"
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end
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end
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def subject
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note.for_personal_snippet? ? note.noteable : note.project
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end
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def build!
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# Add all users participating in the thread (author, assignee, comment authors)
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add_participants(note.author)
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self << [note.mentioned_users, :mention]
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unless note.for_personal_snippet?
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# Merge project watchers
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add_project_watchers
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# Merge project with custom notification
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add_custom_notifications
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end
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add_subscribed_users
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end
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def custom_action
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:new_note
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end
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def acting_user
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note.author
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end
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end
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end
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def build_recipients(*a)
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Builder::Default.new(@project, *a).recipient_users
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end
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def build_pipeline_recipients(*a)
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Builder::Pipeline.new(@project, *a).recipient_users
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end
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def build_relabeled_recipients(*a)
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Builder::Relabeled.new(@project, *a).recipient_users
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end
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def build_new_note_recipients(*a)
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Builder::NewNote.new(@project, *a).recipient_users
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end
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end
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