class Ability class << self def allowed(user, subject) return not_auth_abilities(user, subject) if user.nil? return [] unless user.kind_of?(User) return [] if user.blocked? case subject.class.name when "Project" then project_abilities(user, subject) when "Issue" then issue_abilities(user, subject) when "Note" then note_abilities(user, subject) when "ProjectSnippet" then project_snippet_abilities(user, subject) when "PersonalSnippet" then personal_snippet_abilities(user, subject) when "MergeRequest" then merge_request_abilities(user, subject) when "Group" then group_abilities(user, subject) when "Namespace" then namespace_abilities(user, subject) when "GroupMember" then group_member_abilities(user, subject) else [] end.concat(global_abilities(user)) end # List of possible abilities # for non-authenticated user def not_auth_abilities(user, subject) project = if subject.kind_of?(Project) subject elsif subject.respond_to?(:project) subject.project else nil end if project && project.public? rules = [ :read_project, :read_wiki, :read_issue, :read_label, :read_milestone, :read_project_snippet, :read_project_member, :read_merge_request, :read_note, :download_code ] rules - project_disabled_features_rules(project) else group = if subject.kind_of?(Group) subject elsif subject.respond_to?(:group) subject.group else nil end if group && group.public_profile? [:read_group] else [] end end end def global_abilities(user) rules = [] rules << :create_group if user.can_create_group rules end def project_abilities(user, project) rules = [] key = "/user/#{user.id}/project/#{project.id}" RequestStore.store[key] ||= begin team = project.team # Rules based on role in project if team.master?(user) rules.push(*project_master_rules) elsif team.developer?(user) rules.push(*project_dev_rules) elsif team.reporter?(user) rules.push(*project_report_rules) elsif team.guest?(user) rules.push(*project_guest_rules) end if project.public? || project.internal? rules.push(*public_project_rules) end if project.owner == user || user.admin? rules.push(*project_admin_rules) end if project.group && project.group.has_owner?(user) rules.push(*project_admin_rules) end if project.archived? rules -= project_archived_rules end rules - project_disabled_features_rules(project) end end def public_project_rules project_guest_rules + [ :download_code, :fork_project ] end def project_guest_rules [ :read_project, :read_wiki, :read_issue, :read_label, :read_milestone, :read_project_snippet, :read_project_member, :read_merge_request, :read_note, :create_project, :create_issue, :create_note ] end def project_report_rules project_guest_rules + [ :download_code, :fork_project, :create_project_snippet, :update_issue, :admin_issue, :admin_label ] end def project_dev_rules project_report_rules + [ :admin_merge_request, :create_merge_request, :create_wiki, :push_code ] end def project_archived_rules [ :create_merge_request, :push_code, :push_code_to_protected_branches, :update_merge_request, :admin_merge_request ] end def project_master_rules project_dev_rules + [ :push_code_to_protected_branches, :update_project_snippet, :update_merge_request, :admin_milestone, :admin_project_snippet, :admin_project_member, :admin_merge_request, :admin_note, :admin_wiki, :admin_project ] end def project_admin_rules project_master_rules + [ :change_namespace, :change_visibility_level, :rename_project, :remove_project, :archive_project ] end def project_disabled_features_rules(project) rules = [] unless project.issues_enabled rules += named_abilities('issue') end unless project.merge_requests_enabled rules += named_abilities('merge_request') end unless project.issues_enabled or project.merge_requests_enabled rules += named_abilities('label') rules += named_abilities('milestone') end unless project.snippets_enabled rules += named_abilities('project_snippet') end unless project.wiki_enabled rules += named_abilities('wiki') end rules end def group_abilities(user, group) rules = [] if user.admin? || group.users.include?(user) || ProjectsFinder.new.execute(user, group: group).any? rules << :read_group end # Only group masters and group owners can create new projects in group if group.has_master?(user) || group.has_owner?(user) || user.admin? rules.push(*[ :create_projects, ]) end # Only group owner and administrators can admin group if group.has_owner?(user) || user.admin? rules.push(*[ :admin_group, :admin_namespace, :admin_group_member ]) end rules.flatten end def namespace_abilities(user, namespace) rules = [] # Only namespace owner and administrators can admin it if namespace.owner == user || user.admin? rules.push(*[ :create_projects, :admin_namespace ]) end rules.flatten end [:issue, :merge_request].each do |name| define_method "#{name}_abilities" do |user, subject| rules = [] if subject.author == user || (subject.respond_to?(:assignee) && subject.assignee == user) rules += [ :"read_#{name}", :"update_#{name}", ] end rules += project_abilities(user, subject.project) rules end end [:note, :project_snippet, :personal_snippet].each do |name| define_method "#{name}_abilities" do |user, subject| rules = [] if subject.author == user rules += [ :"read_#{name}", :"update_#{name}", :"admin_#{name}" ] end if subject.respond_to?(:project) && subject.project rules += project_abilities(user, subject.project) end rules end end def group_member_abilities(user, subject) rules = [] target_user = subject.user group = subject.group can_manage = group_abilities(user, group).include?(:admin_group_member) if can_manage && (user != target_user) rules << :update_group_member rules << :destroy_group_member end if !group.last_owner?(user) && (can_manage || (user == target_user)) rules << :destroy_group_member end rules end def abilities @abilities ||= begin abilities = Six.new abilities << self abilities end end private def named_abilities(name) [ :"read_#{name}", :"create_#{name}", :"update_#{name}", :"admin_#{name}" ] end end end