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c7634d56f6
They could be filtered and returned in some circumstances where they shouldn't have been.
537 lines
14 KiB
Ruby
537 lines
14 KiB
Ruby
# frozen_string_literal: true
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require 'guardian/category_guardian'
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require 'guardian/ensure_magic'
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require 'guardian/post_guardian'
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require 'guardian/bookmark_guardian'
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require 'guardian/topic_guardian'
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require 'guardian/user_guardian'
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require 'guardian/post_revision_guardian'
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require 'guardian/group_guardian'
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require 'guardian/tag_guardian'
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# The guardian is responsible for confirming access to various site resources and operations
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class Guardian
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include EnsureMagic
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include CategoryGuardian
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include PostGuardian
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include BookmarkGuardian
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include TopicGuardian
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include UserGuardian
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include PostRevisionGuardian
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include GroupGuardian
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include TagGuardian
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class AnonymousUser
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def blank?
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true
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end
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def admin?
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false
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end
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def staff?
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false
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end
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def moderator?
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false
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end
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def anonymous?
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true
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end
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def approved?
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false
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end
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def staged?
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false
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end
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def silenced?
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false
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end
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def secure_category_ids
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[]
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end
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def topic_create_allowed_category_ids
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[]
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end
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def has_trust_level?(level)
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false
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end
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def email
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nil
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end
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end
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attr_reader :request
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def initialize(user = nil, request = nil)
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@user = user.presence || AnonymousUser.new
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@request = request
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end
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def user
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@user.presence
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end
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alias :current_user :user
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def anonymous?
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!authenticated?
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end
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def authenticated?
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@user.present?
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end
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def is_admin?
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@user.admin?
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end
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def is_staff?
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@user.staff?
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end
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def is_moderator?
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@user.moderator?
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end
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def is_silenced?
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@user.silenced?
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end
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def is_developer?
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@user &&
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is_admin? &&
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(
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Rails.env.development? ||
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Developer.user_ids.include?(@user.id) ||
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(
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Rails.configuration.respond_to?(:developer_emails) &&
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Rails.configuration.developer_emails.include?(@user.email)
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)
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)
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end
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def is_staged?
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@user.staged?
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end
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def is_anonymous?
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@user.anonymous?
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end
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# Can the user see the object?
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def can_see?(obj)
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if obj
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see_method = method_name_for :see, obj
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(see_method ? public_send(see_method, obj) : true)
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end
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end
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def can_create?(klass, parent = nil)
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return false unless authenticated? && klass
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# If no parent is provided, we look for a can_create_klass?
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# custom method.
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#
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# If a parent is provided, we look for a method called
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# can_create_klass_on_parent?
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target = klass.name.underscore
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if parent.present?
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return false unless can_see?(parent)
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target << "_on_#{parent.class.name.underscore}"
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end
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create_method = :"can_create_#{target}?"
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return public_send(create_method, parent) if respond_to?(create_method)
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true
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end
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def can_enable_safe_mode?
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SiteSetting.enable_safe_mode? || is_staff?
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end
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# Can the user edit the obj
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def can_edit?(obj)
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can_do?(:edit, obj)
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end
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# Can we delete the object
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def can_delete?(obj)
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can_do?(:delete, obj)
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end
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def can_moderate?(obj)
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obj && authenticated? && !is_silenced? && (is_staff? || (obj.is_a?(Topic) && @user.has_trust_level?(TrustLevel[4])))
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end
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alias :can_move_posts? :can_moderate?
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alias :can_see_flags? :can_moderate?
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alias :can_close? :can_moderate?
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def can_tag?(topic)
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return false if topic.blank?
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topic.private_message? ? can_tag_pms? : can_tag_topics?
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end
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def can_see_tags?(topic)
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SiteSetting.tagging_enabled && topic.present? && (!topic.private_message? || can_tag_pms?)
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end
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def can_send_activation_email?(user)
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user && is_staff? && !SiteSetting.must_approve_users?
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end
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def can_grant_badges?(_user)
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SiteSetting.enable_badges && is_staff?
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end
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def can_delete_reviewable_queued_post?(reviewable)
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reviewable.present? &&
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authenticated? &&
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reviewable.created_by_id == @user.id
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end
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def can_see_group?(group)
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group.present? && can_see_groups?([group])
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end
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def can_see_group_members?(group)
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return false if group.blank?
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return true if is_admin? || group.members_visibility_level == Group.visibility_levels[:public]
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return true if is_staff? && group.members_visibility_level == Group.visibility_levels[:staff]
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return true if authenticated? && group.members_visibility_level == Group.visibility_levels[:logged_on_users]
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return false if user.blank?
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return false unless membership = GroupUser.find_by(group_id: group.id, user_id: user.id)
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return true if membership.owner
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return false if group.members_visibility_level == Group.visibility_levels[:owners]
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return false if group.members_visibility_level == Group.visibility_levels[:staff]
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true
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end
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def can_see_groups?(groups)
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return false if groups.blank?
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return true if is_admin? || groups.all? { |g| g.visibility_level == Group.visibility_levels[:public] }
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return true if is_staff? && groups.all? { |g| g.visibility_level == Group.visibility_levels[:staff] }
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return true if authenticated? && groups.all? { |g| g.visibility_level == Group.visibility_levels[:logged_on_users] }
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return false if user.blank?
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memberships = GroupUser.where(group: groups, user_id: user.id).pluck(:owner)
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return false if memberships.size < groups.size
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return true if memberships.all? # owner of all groups
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return false if groups.all? { |g| g.visibility_level == Group.visibility_levels[:owners] }
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return false if groups.all? { |g| g.visibility_level == Group.visibility_levels[:staff] }
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true
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end
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def can_see_groups_members?(groups)
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return false if groups.blank?
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requested_group_ids = groups.map(&:id) # Can't use pluck, groups could be a regular array
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matching_group_ids = Group.where(id: requested_group_ids).members_visible_groups(user).pluck(:id)
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matching_group_ids.sort == requested_group_ids.sort
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end
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# Can we impersonate this user?
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def can_impersonate?(target)
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target &&
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# You must be an admin to impersonate
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is_admin? &&
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# You may not impersonate other admins unless you are a dev
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(!target.admin? || is_developer?)
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# Additionally, you may not impersonate yourself;
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# but the two tests for different admin statuses
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# make it impossible to be the same user.
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end
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def can_view_action_logs?(target)
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target.present? && is_staff?
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end
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# Can we approve it?
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def can_approve?(target)
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is_staff? && target && target.active? && !target.approved?
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end
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def can_activate?(target)
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is_staff? && target && not(target.active?)
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end
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def can_suspend?(user)
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user && is_staff? && user.regular?
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end
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alias :can_deactivate? :can_suspend?
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def can_revoke_admin?(admin)
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can_administer_user?(admin) && admin.admin?
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end
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def can_grant_admin?(user)
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can_administer_user?(user) && !user.admin?
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end
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def can_revoke_moderation?(moderator)
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can_administer?(moderator) && moderator.moderator?
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end
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def can_grant_moderation?(user)
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can_administer?(user) && !user.moderator?
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end
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def can_grant_title?(user, title = nil)
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return true if user && is_staff?
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return false if title.nil?
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return true if title.empty? # A title set to '(none)' in the UI is an empty string
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return false if user != @user
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return true if user.badges
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.where(allow_title: true)
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.pluck(:name)
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.any? { |name| Badge.display_name(name) == title }
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user.groups.where(title: title).exists?
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end
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def can_use_primary_group?(user, group_id = nil)
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return false if !user || !group_id
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group = Group.find_by(id: group_id.to_i)
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user.group_ids.include?(group_id.to_i) &&
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(group ? !group.automatic : false)
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end
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def can_change_primary_group?(user)
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user && is_staff?
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end
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def can_change_trust_level?(user)
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user && is_staff?
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end
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# Support sites that have to approve users
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def can_access_forum?
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return true unless SiteSetting.must_approve_users?
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return false unless @user
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# Staff can't lock themselves out of a site
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return true if is_staff?
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@user.approved?
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end
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def can_see_invite_details?(user)
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is_me?(user)
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end
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def can_see_invite_emails?(user)
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is_staff? || is_me?(user)
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end
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def can_invite_to_forum?(groups = nil)
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authenticated? &&
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(SiteSetting.max_invites_per_day.to_i > 0 || is_staff?) &&
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!SiteSetting.enable_sso &&
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SiteSetting.enable_local_logins &&
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(
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(!SiteSetting.must_approve_users? && @user.has_trust_level?(TrustLevel[2])) ||
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is_staff?
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) &&
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(groups.blank? || is_admin? || groups.all? { |g| can_edit_group?(g) })
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end
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def can_invite_to?(object, groups = nil)
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return false unless authenticated?
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is_topic = object.is_a?(Topic)
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return true if is_admin? && !is_topic
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return false if (SiteSetting.max_invites_per_day.to_i == 0 && !is_staff?)
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return false unless can_see?(object)
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return false if groups.present?
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if is_topic
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if object.private_message?
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return true if is_admin?
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return false unless SiteSetting.enable_personal_messages?
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return false if object.reached_recipients_limit? && !is_staff?
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end
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if (category = object.category) && category.read_restricted
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if (groups = category.groups&.where(automatic: false))&.any?
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return groups.any? { |g| can_edit_group?(g) } ? true : false
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else
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return false
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end
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end
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end
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user.has_trust_level?(TrustLevel[2])
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end
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def can_invite_via_email?(object)
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return false unless can_invite_to?(object)
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!SiteSetting.enable_sso && SiteSetting.enable_local_logins && (!SiteSetting.must_approve_users? || is_staff?)
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end
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def can_bulk_invite_to_forum?(user)
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user.admin?
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end
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def can_send_multiple_invites?(user)
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user.staff?
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end
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def can_resend_all_invites?(user)
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user.staff?
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end
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def can_rescind_all_invites?(user)
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user.staff?
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end
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def can_see_private_messages?(user_id)
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is_admin? || (authenticated? && @user.id == user_id)
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end
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def can_invite_group_to_private_message?(group, topic)
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can_see_topic?(topic) &&
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can_send_private_message?(group)
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end
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def can_send_private_message?(target, notify_moderators: false)
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is_user = target.is_a?(User)
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is_group = target.is_a?(Group)
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(is_group || is_user) &&
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# User is authenticated
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authenticated? &&
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# Have to be a basic level at least
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(is_group || @user.has_trust_level?(SiteSetting.min_trust_to_send_messages) || notify_moderators) &&
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# User disabled private message
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(is_staff? || is_group || target.user_option.allow_private_messages) &&
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# PMs are enabled
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(is_staff? || SiteSetting.enable_personal_messages || notify_moderators) &&
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# Can't send PMs to suspended users
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(is_staff? || is_group || !target.suspended?) &&
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# Check group messageable level
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(is_staff? || is_user || Group.messageable(@user).where(id: target.id).exists?) &&
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# Silenced users can only send PM to staff
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(!is_silenced? || target.staff?)
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end
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def can_send_private_messages_to_email?
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# Staged users must be enabled to create a temporary user.
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SiteSetting.enable_staged_users &&
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# User is authenticated
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authenticated? &&
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# User is trusted enough
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(is_staff? ||
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(
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# TODO: 2019 evaluate if we need this flexibility
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# perhaps we enable this unconditionally to TL4?
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@user.has_trust_level?(SiteSetting.min_trust_to_send_email_messages) &&
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SiteSetting.enable_personal_email_messages
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)
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)
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end
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def can_export_entity?(entity)
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return false unless @user
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return true if is_admin?
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return entity != 'user_list' if is_moderator?
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# Regular users can only export their archives
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return false unless entity == "user_archive"
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UserExport.where(user_id: @user.id, created_at: (Time.zone.now.beginning_of_day..Time.zone.now.end_of_day)).count == 0
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end
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def can_mute_user?(target_user)
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can_mute_users? &&
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@user.id != target_user.id &&
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!target_user.staff?
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end
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def can_mute_users?
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return false if anonymous?
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@user.staff? || @user.trust_level >= TrustLevel.levels[:basic]
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end
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def can_ignore_user?(target_user)
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can_ignore_users? && @user.id != target_user.id && !target_user.staff?
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end
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def can_ignore_users?
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return false if anonymous?
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@user.staff? || @user.trust_level >= TrustLevel.levels[:member]
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end
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def allow_themes?(theme_ids, include_preview: false)
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return true if theme_ids.blank?
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if include_preview && is_staff? && (theme_ids - Theme.theme_ids).blank?
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return true
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end
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parent = theme_ids.first
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components = theme_ids[1..-1] || []
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Theme.user_theme_ids.include?(parent) &&
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(components - Theme.components_for(parent)).empty?
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end
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def auth_token
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if cookie = request&.cookies[Auth::DefaultCurrentUserProvider::TOKEN_COOKIE]
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UserAuthToken.hash_token(cookie)
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end
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end
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private
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def is_my_own?(obj)
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unless anonymous?
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return obj.user_id == @user.id if obj.respond_to?(:user_id) && obj.user_id && @user.id
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return obj.user == @user if obj.respond_to?(:user)
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end
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false
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end
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def is_me?(other)
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other && authenticated? && other.is_a?(User) && @user == other
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end
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def is_not_me?(other)
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@user.blank? || !is_me?(other)
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end
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def can_administer?(obj)
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is_admin? && obj.present? && obj.id&.positive?
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end
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def can_administer_user?(other_user)
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can_administer?(other_user) && is_not_me?(other_user)
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end
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def method_name_for(action, obj)
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method_name = :"can_#{action}_#{obj.class.name.underscore}?"
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return method_name if respond_to?(method_name)
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end
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def can_do?(action, obj)
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if obj && authenticated?
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action_method = method_name_for action, obj
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(action_method ? public_send(action_method, obj) : true)
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else
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false
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end
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end
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end
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