608 lines
18 KiB
Ruby
608 lines
18 KiB
Ruby
# frozen_string_literal: true
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require_dependency 'enum'
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class Group < ActiveRecord::Base
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include HasCustomFields
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include AnonCacheInvalidator
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has_many :category_groups, dependent: :destroy
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has_many :group_users, dependent: :destroy
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has_many :group_mentions, dependent: :destroy
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has_many :group_archived_messages, dependent: :destroy
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has_many :categories, through: :category_groups
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has_many :users, through: :group_users
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has_many :group_histories, dependent: :destroy
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has_and_belongs_to_many :web_hooks
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before_save :downcase_incoming_email
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before_save :cook_bio
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after_save :destroy_deletions
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after_save :automatic_group_membership
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after_save :update_primary_group
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after_save :update_title
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after_save :enqueue_update_mentions_job,
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if: Proc.new { |g| g.name_was && g.name_changed? }
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after_save :expire_cache
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after_destroy :expire_cache
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def expire_cache
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ApplicationSerializer.expire_cache_fragment!("group_names")
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end
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validate :name_format_validator
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validates_uniqueness_of :name, case_sensitive: false
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validate :automatic_membership_email_domains_format_validator
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validate :incoming_email_validator
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validate :can_allow_membership_requests
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validates :flair_url, url: true, if: Proc.new { |g| g.flair_url && g.flair_url[0,3] != 'fa-' }
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AUTO_GROUPS = {
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:everyone => 0,
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:admins => 1,
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:moderators => 2,
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:staff => 3,
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:trust_level_0 => 10,
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:trust_level_1 => 11,
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:trust_level_2 => 12,
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:trust_level_3 => 13,
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:trust_level_4 => 14
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}
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AUTO_GROUP_IDS = Hash[*AUTO_GROUPS.to_a.flatten.reverse]
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STAFF_GROUPS = [:admins, :moderators, :staff]
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ALIAS_LEVELS = {
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:nobody => 0,
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:only_admins => 1,
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:mods_and_admins => 2,
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:members_mods_and_admins => 3,
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:everyone => 99
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}
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def self.visibility_levels
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@visibility_levels = Enum.new(
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public: 0,
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members: 1,
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staff: 2,
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owners: 3
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)
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end
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validates :alias_level, inclusion: { in: ALIAS_LEVELS.values}
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scope :visible_groups, ->(user) {
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groups = Group.order(name: :asc).where("groups.id > 0")
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unless user&.admin
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sql = <<~SQL
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groups.id IN (
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SELECT g.id FROM groups g WHERE g.visibility_level = :public
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UNION ALL
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SELECT g.id FROM groups g
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JOIN group_users gu ON gu.group_id = g.id AND
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gu.user_id = :user_id
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WHERE g.visibility_level = :members
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UNION ALL
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SELECT g.id FROM groups g
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LEFT JOIN group_users gu ON gu.group_id = g.id AND
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gu.user_id = :user_id AND
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gu.owner
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WHERE g.visibility_level = :staff AND (gu.id IS NOT NULL OR :is_staff)
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UNION ALL
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SELECT g.id FROM groups g
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JOIN group_users gu ON gu.group_id = g.id AND
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gu.user_id = :user_id AND
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gu.owner
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WHERE g.visibility_level = :owners
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)
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SQL
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groups = groups.where(
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sql,
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Group.visibility_levels.to_h.merge(user_id: user&.id, is_staff: !!user&.staff?)
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)
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end
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groups
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}
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scope :mentionable, lambda {|user|
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levels = [ALIAS_LEVELS[:everyone]]
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if user && user.admin?
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levels = [ALIAS_LEVELS[:everyone],
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ALIAS_LEVELS[:only_admins],
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ALIAS_LEVELS[:mods_and_admins],
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ALIAS_LEVELS[:members_mods_and_admins]]
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elsif user && user.moderator?
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levels = [ALIAS_LEVELS[:everyone],
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ALIAS_LEVELS[:mods_and_admins],
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ALIAS_LEVELS[:members_mods_and_admins]]
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end
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where("alias_level in (:levels) OR
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(
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alias_level = #{ALIAS_LEVELS[:members_mods_and_admins]} AND id in (
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SELECT group_id FROM group_users WHERE user_id = :user_id)
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)", levels: levels, user_id: user && user.id )
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}
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def downcase_incoming_email
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self.incoming_email = (incoming_email || "").strip.downcase.presence
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end
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def cook_bio
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if !self.bio_raw.blank?
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self.bio_cooked = PrettyText.cook(self.bio_raw)
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end
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end
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def incoming_email_validator
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return if self.automatic || self.incoming_email.blank?
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incoming_email.split("|").each do |email|
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escaped = Rack::Utils.escape_html(email)
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if !Email.is_valid?(email)
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self.errors.add(:base, I18n.t('groups.errors.invalid_incoming_email', email: escaped))
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elsif group = Group.where.not(id: self.id).find_by_email(email)
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self.errors.add(:base, I18n.t('groups.errors.email_already_used_in_group', email: escaped, group_name: Rack::Utils.escape_html(group.name)))
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elsif category = Category.find_by_email(email)
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self.errors.add(:base, I18n.t('groups.errors.email_already_used_in_category', email: escaped, category_name: Rack::Utils.escape_html(category.name)))
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end
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end
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end
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def posts_for(guardian, before_post_id=nil)
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user_ids = group_users.map { |gu| gu.user_id }
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result = Post.includes(:user, :topic, topic: :category)
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.references(:posts, :topics, :category)
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.where(user_id: user_ids)
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.where('topics.archetype <> ?', Archetype.private_message)
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.where(post_type: Post.types[:regular])
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result = guardian.filter_allowed_categories(result)
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result = result.where('posts.id < ?', before_post_id) if before_post_id
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result.order('posts.created_at desc')
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end
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def messages_for(guardian, before_post_id=nil)
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result = Post.includes(:user, :topic, topic: :category)
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.references(:posts, :topics, :category)
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.where('topics.archetype = ?', Archetype.private_message)
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.where(post_type: Post.types[:regular])
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.where('topics.id IN (SELECT topic_id FROM topic_allowed_groups WHERE group_id = ?)', self.id)
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result = guardian.filter_allowed_categories(result)
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result = result.where('posts.id < ?', before_post_id) if before_post_id
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result.order('posts.created_at desc')
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end
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def mentioned_posts_for(guardian, before_post_id=nil)
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result = Post.joins(:group_mentions)
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.includes(:user, :topic, topic: :category)
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.references(:posts, :topics, :category)
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.where('topics.archetype <> ?', Archetype.private_message)
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.where(post_type: Post.types[:regular])
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.where('group_mentions.group_id = ?', self.id)
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result = guardian.filter_allowed_categories(result)
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result = result.where('posts.id < ?', before_post_id) if before_post_id
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result.order('posts.created_at desc')
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end
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def self.trust_group_ids
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(10..19).to_a
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end
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def self.refresh_automatic_group!(name)
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return unless id = AUTO_GROUPS[name]
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unless group = self.lookup_group(name)
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group = Group.new(name: name.to_s, automatic: true)
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group.default_notification_level = 2 if AUTO_GROUPS[:moderators] == id
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group.id = id
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group.save!
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end
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# don't allow shoddy localization to break this
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localized_name = I18n.t("groups.default_names.#{name}").downcase
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validator = UsernameValidator.new(localized_name)
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group.name =
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if !Group.where("LOWER(name) = ?", localized_name).exists? && validator.valid_format?
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localized_name
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else
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name
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end
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# the everyone group is special, it can include non-users so there is no
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# way to have the membership in a table
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if name == :everyone
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group.visibility_level = Group.visibility_levels[:owners]
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group.save!
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return group
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end
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# Remove people from groups they don't belong in.
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remove_subquery = case name
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when :admins
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"SELECT id FROM users WHERE NOT admin"
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when :moderators
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"SELECT id FROM users WHERE NOT moderator"
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when :staff
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"SELECT id FROM users WHERE NOT admin AND NOT moderator"
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when :trust_level_0, :trust_level_1, :trust_level_2, :trust_level_3, :trust_level_4
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"SELECT id FROM users WHERE trust_level < #{id - 10}"
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end
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exec_sql <<-SQL
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DELETE FROM group_users
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USING (#{remove_subquery}) X
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WHERE group_id = #{group.id}
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AND user_id = X.id
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SQL
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# Add people to groups
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insert_subquery = case name
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when :admins
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"SELECT id FROM users WHERE admin"
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when :moderators
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"SELECT id FROM users WHERE moderator"
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when :staff
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"SELECT id FROM users WHERE moderator OR admin"
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when :trust_level_1, :trust_level_2, :trust_level_3, :trust_level_4
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"SELECT id FROM users WHERE trust_level >= #{id - 10}"
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when :trust_level_0
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"SELECT id FROM users"
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end
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exec_sql <<-SQL
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INSERT INTO group_users (group_id, user_id, created_at, updated_at)
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SELECT #{group.id}, X.id, now(), now()
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FROM group_users
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RIGHT JOIN (#{insert_subquery}) X ON X.id = user_id AND group_id = #{group.id}
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WHERE user_id IS NULL
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SQL
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group.save!
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# we want to ensure consistency
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Group.reset_counters(group.id, :group_users)
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group
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end
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def self.ensure_consistency!
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reset_all_counters!
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refresh_automatic_groups!
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end
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def self.reset_all_counters!
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exec_sql <<-SQL
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WITH X AS (
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SELECT group_id
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, COUNT(user_id) users
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FROM group_users
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GROUP BY group_id
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)
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UPDATE groups
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SET user_count = X.users
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FROM X
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WHERE id = X.group_id
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AND user_count <> X.users
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SQL
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end
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def self.refresh_automatic_groups!(*args)
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args = AUTO_GROUPS.keys if args.empty?
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args.each { |group| refresh_automatic_group!(group) }
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end
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def self.ensure_automatic_groups!
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AUTO_GROUPS.each_key do |name|
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refresh_automatic_group!(name) unless lookup_group(name)
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end
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end
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def self.[](name)
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lookup_group(name) || refresh_automatic_group!(name)
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end
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def self.search_group(name)
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Group.where(visibility_level: visibility_levels[:public]).where(
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"name ILIKE :term_like OR full_name ILIKE :term_like", term_like: "#{name}%"
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)
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end
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def self.lookup_group(name)
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if id = AUTO_GROUPS[name]
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Group.find_by(id: id)
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else
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unless group = Group.find_by(name: name)
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raise ArgumentError, "unknown group"
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end
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group
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end
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end
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def self.lookup_group_ids(opts)
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if group_ids = opts[:group_ids]
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group_ids = group_ids.split(",").map(&:to_i)
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group_ids = Group.where(id: group_ids).pluck(:id)
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end
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group_ids ||= []
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if group_names = opts[:group_names]
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group_names = group_names.split(",")
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if group_names.present?
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group_ids += Group.where(name: group_names).pluck(:id)
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end
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end
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group_ids
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end
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def self.desired_trust_level_groups(trust_level)
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trust_group_ids.keep_if do |id|
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id == AUTO_GROUPS[:trust_level_0] || (trust_level + 10) >= id
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end
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end
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def self.user_trust_level_change!(user_id, trust_level)
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desired = desired_trust_level_groups(trust_level)
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undesired = trust_group_ids - desired
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GroupUser.where(group_id: undesired, user_id: user_id).delete_all
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desired.each do |id|
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if group = find_by(id: id)
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unless GroupUser.where(group_id: id, user_id: user_id).exists?
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group.group_users.create!(user_id: user_id)
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end
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else
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name = AUTO_GROUP_IDS[trust_level]
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refresh_automatic_group!(name)
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end
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end
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end
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def self.builtin
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Enum.new(:moderators, :admins, :trust_level_1, :trust_level_2)
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end
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def usernames=(val)
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current = usernames.split(",")
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expected = val.split(",")
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additions = expected - current
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deletions = current - expected
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map = Hash[*User.where(username: additions+deletions)
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.select('id,username')
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.map{|u| [u.username,u.id]}.flatten]
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deletions = Set.new(deletions.map{|d| map[d]})
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@deletions = []
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group_users.each do |gu|
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@deletions << gu if deletions.include?(gu.user_id)
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end
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additions.each do |a|
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group_users.build(user_id: map[a])
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end
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end
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def usernames
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users.pluck(:username).join(",")
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end
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def add(user)
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self.users.push(user) unless self.users.include?(user)
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MessageBus.publish('/categories', {
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categories: ActiveModel::ArraySerializer.new(self.categories).as_json
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}, user_ids: [user.id])
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self
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end
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def remove(user)
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self.group_users.where(user: user).each(&:destroy)
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user.update_columns(primary_group_id: nil) if user.primary_group_id == self.id
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end
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def add_owner(user)
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if group_user = self.group_users.find_by(user: user)
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group_user.update_attributes!(owner: true) if !group_user.owner
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else
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GroupUser.create!(user: user, group: self, owner: true)
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end
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end
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def self.find_by_email(email)
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self.where("string_to_array(incoming_email, '|') @> ARRAY[?]", Email.downcase(email)).first
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end
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def bulk_add(user_ids)
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if user_ids.present?
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Group.exec_sql("INSERT INTO group_users
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(group_id, user_id, created_at, updated_at)
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SELECT #{self.id},
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u.id,
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CURRENT_TIMESTAMP,
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CURRENT_TIMESTAMP
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FROM users AS u
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WHERE u.id IN (#{user_ids.join(', ')})
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AND NOT EXISTS(SELECT 1 FROM group_users AS gu
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WHERE gu.user_id = u.id AND
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gu.group_id = #{self.id})")
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if self.primary_group?
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User.where(id: user_ids).update_all(primary_group_id: self.id)
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end
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if self.title.present?
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User.where(id: user_ids).update_all(title: self.title)
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end
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if self.grant_trust_level.present?
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Jobs.enqueue(:bulk_grant_trust_level, user_ids: user_ids, trust_level: self.grant_trust_level)
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end
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end
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true
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end
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def staff?
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STAFF_GROUPS.include?(self.name.to_sym)
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end
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protected
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def name_format_validator
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UsernameValidator.perform_validation(self, 'name')
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end
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def automatic_membership_email_domains_format_validator
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return if self.automatic_membership_email_domains.blank?
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domains = self.automatic_membership_email_domains.split("|")
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domains.each do |domain|
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domain.sub!(/^https?:\/\//, '')
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domain.sub!(/\/.*$/, '')
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self.errors.add :base, (I18n.t('groups.errors.invalid_domain', domain: domain)) unless domain =~ /\A[a-z0-9]+([\-\.]{1}[a-z0-9]+)*\.[a-z]{2,24}(:[0-9]{1,5})?(\/.*)?\Z/i
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end
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self.automatic_membership_email_domains = domains.join("|")
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end
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# hack around AR
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def destroy_deletions
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if @deletions
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@deletions.each do |gu|
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gu.destroy
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User.where('id = ? AND primary_group_id = ?', gu.user_id, gu.group_id).update_all 'primary_group_id = NULL'
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end
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end
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@deletions = nil
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end
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def automatic_group_membership
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if self.automatic_membership_retroactive
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Jobs.enqueue(:automatic_group_membership, group_id: self.id)
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end
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end
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def update_title
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return if new_record? && !self.title.present?
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if self.title_changed?
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sql = <<-SQL.squish
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UPDATE users
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SET title = :title
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WHERE (title = :title_was OR title = '' OR title IS NULL)
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AND COALESCE(title,'') <> COALESCE(:title,'')
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AND id IN (SELECT user_id FROM group_users WHERE group_id = :id)
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SQL
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|
self.class.exec_sql(sql, title: title, title_was: title_was, id: id)
|
|
end
|
|
end
|
|
|
|
def update_primary_group
|
|
return if new_record? && !self.primary_group?
|
|
|
|
if self.primary_group_changed?
|
|
sql = <<~SQL
|
|
UPDATE users
|
|
/*set*/
|
|
/*where*/
|
|
SQL
|
|
|
|
builder = SqlBuilder.new(sql)
|
|
builder.where("
|
|
id IN (
|
|
SELECT user_id
|
|
FROM group_users
|
|
WHERE group_id = :id
|
|
)", id: id)
|
|
|
|
if primary_group
|
|
builder.set("primary_group_id = :id")
|
|
else
|
|
builder.set("primary_group_id = NULL")
|
|
builder.where("primary_group_id = :id")
|
|
end
|
|
|
|
builder.exec
|
|
end
|
|
end
|
|
|
|
private
|
|
|
|
def can_allow_membership_requests
|
|
if self.allow_membership_requests && !self.group_users.where(owner: true).exists?
|
|
self.errors.add(:base, I18n.t('groups.errors.cant_allow_membership_requests'))
|
|
end
|
|
end
|
|
|
|
def enqueue_update_mentions_job
|
|
Jobs.enqueue(:update_group_mentions,
|
|
previous_name: self.name_was,
|
|
group_id: self.id
|
|
)
|
|
end
|
|
end
|
|
|
|
# == Schema Information
|
|
#
|
|
# Table name: groups
|
|
#
|
|
# id :integer not null, primary key
|
|
# name :string not null
|
|
# created_at :datetime not null
|
|
# updated_at :datetime not null
|
|
# automatic :boolean default(FALSE), not null
|
|
# user_count :integer default(0), not null
|
|
# alias_level :integer default(0)
|
|
# automatic_membership_email_domains :text
|
|
# automatic_membership_retroactive :boolean default(FALSE)
|
|
# primary_group :boolean default(FALSE), not null
|
|
# title :string
|
|
# grant_trust_level :integer
|
|
# incoming_email :string
|
|
# has_messages :boolean default(FALSE), not null
|
|
# flair_url :string
|
|
# flair_bg_color :string
|
|
# flair_color :string
|
|
# bio_raw :text
|
|
# bio_cooked :text
|
|
# public :boolean default(FALSE), not null
|
|
# allow_membership_requests :boolean default(FALSE), not null
|
|
# full_name :string
|
|
# default_notification_level :integer default(3), not null
|
|
# visibility_level :integer default(0)
|
|
#
|
|
# Indexes
|
|
#
|
|
# index_groups_on_incoming_email (incoming_email) UNIQUE
|
|
# index_groups_on_name (name) UNIQUE
|
|
#
|