services/api/app/controllers/arvados/v1/users_controller.rb

   1 # Copyright (C) The Arvados Authors. All rights reserved.
   2 #
   3 # SPDX-License-Identifier: AGPL-3.0
   4
   5 class Arvados::V1::UsersController < ApplicationController
   6   accept_attribute_as_json :prefs, Hash
   7
   8   skip_before_action :find_object_by_uuid, only:
   9     [:activate, :current, :system, :setup, :merge]
  10   skip_before_action :render_404_if_no_object, only:
  11     [:activate, :current, :system, :setup, :merge]
  12   before_action :admin_required, only: [:setup, :unsetup, :update_uuid]
  13
  14   def current
  15     if current_user
  16       @object = current_user
  17       show
  18     else
  19       send_error("Not logged in", status: 401)
  20     end
  21   end
  22
  23   def system
  24     @object = system_user
  25     show
  26   end
  27
  28   def activate
  29     if current_user.andand.is_admin && params[:uuid]
  30       @object = User.find params[:uuid]
  31     else
  32       @object = current_user
  33     end
  34     if not @object.is_active
  35       if not (current_user.is_admin or @object.is_invited)
  36         logger.warn "User #{@object.uuid} called users.activate " +
  37           "but is not invited"
  38         raise ArgumentError.new "Cannot activate without being invited."
  39       end
  40       act_as_system_user do
  41         required_uuids = Link.where("owner_uuid = ? and link_class = ? and name = ? and tail_uuid = ? and head_uuid like ?",
  42                                     system_user_uuid,
  43                                     'signature',
  44                                     'require',
  45                                     system_user_uuid,
  46                                     Collection.uuid_like_pattern).
  47           collect(&:head_uuid)
  48         signed_uuids = Link.where(owner_uuid: system_user_uuid,
  49                                   link_class: 'signature',
  50                                   name: 'click',
  51                                   tail_uuid: @object.uuid,
  52                                   head_uuid: required_uuids).
  53           collect(&:head_uuid)
  54         todo_uuids = required_uuids - signed_uuids
  55         if todo_uuids.empty?
  56           @object.update_attributes is_active: true
  57           logger.info "User #{@object.uuid} activated"
  58         else
  59           logger.warn "User #{@object.uuid} called users.activate " +
  60             "before signing agreements #{todo_uuids.inspect}"
  61           raise ArvadosModel::PermissionDeniedError.new \
  62           "Cannot activate without user agreements #{todo_uuids.inspect}."
  63         end
  64       end
  65     end
  66     show
  67   end
  68
  69   # create user object and all the needed links
  70   def setup
  71     if params[:uuid]
  72       @object = User.find_by_uuid(params[:uuid])
  73       if !@object
  74         return render_404_if_no_object
  75       end
  76     elsif !params[:user] || params[:user].empty?
  77       raise ArgumentError.new "Required uuid or user"
  78     elsif !params[:user]['email']
  79       raise ArgumentError.new "Require user email"
  80     elsif !params[:openid_prefix]
  81       raise ArgumentError.new "Required openid_prefix parameter is missing."
  82     else
  83       @object = model_class.create! resource_attrs
  84     end
  85
  86     # It's not always possible for the client to know the user's
  87     # username when submitting this request: the username might have
  88     # been assigned automatically in create!() above. If client
  89     # provided a plain repository name, prefix it with the username
  90     # now that we know what it is.
  91     if params[:repo_name].nil?
  92       full_repo_name = nil
  93     elsif @object.username.nil?
  94       raise ArgumentError.
  95         new("cannot setup a repository because user has no username")
  96     elsif params[:repo_name].index("/")
  97       full_repo_name = params[:repo_name]
  98     else
  99       full_repo_name = "#{@object.username}/#{params[:repo_name]}"
 100     end
 101
 102     @response = @object.setup(repo_name: full_repo_name,
 103                               vm_uuid: params[:vm_uuid],
 104                               openid_prefix: params[:openid_prefix])
 105
 106     # setup succeeded. send email to user
 107     if params[:send_notification_email]
 108       UserNotifier.account_is_setup(@object).deliver_now
 109     end
 110
 111     send_json kind: "arvados#HashList", items: @response.as_api_response(nil)
 112   end
 113
 114   # delete user agreements, vm, repository, login links; set state to inactive
 115   def unsetup
 116     reload_object_before_update
 117     @object.unsetup
 118     show
 119   end
 120
 121   # Change UUID to a new (unused) uuid and transfer all owned/linked
 122   # objects accordingly.
 123   def update_uuid
 124     @object.update_uuid(new_uuid: params[:new_uuid])
 125     show
 126   end
 127
 128   def merge
 129     if (params[:old_user_uuid] || params[:new_user_uuid])
 130       if !current_user.andand.is_admin
 131         return send_error("Must be admin to use old_user_uuid/new_user_uuid", status: 403)
 132       end
 133       if !params[:old_user_uuid] || !params[:new_user_uuid]
 134         return send_error("Must supply both old_user_uuid and new_user_uuid", status: 422)
 135       end
 136       new_user = User.find_by_uuid(params[:new_user_uuid])
 137       if !new_user
 138         return send_error("User in new_user_uuid not found", status: 422)
 139       end
 140       @object = User.find_by_uuid(params[:old_user_uuid])
 141       if !@object
 142         return send_error("User in old_user_uuid not found", status: 422)
 143       end
 144     else
 145       if !Thread.current[:api_client].andand.is_trusted
 146         return send_error("supplied API token is not from a trusted client", status: 403)
 147       elsif Thread.current[:api_client_authorization].scopes != ['all']
 148         return send_error("cannot merge with a scoped token", status: 403)
 149       end
 150
 151       new_auth = ApiClientAuthorization.validate(token: params[:new_user_token])
 152       if !new_auth
 153         return send_error("invalid new_user_token", status: 401)
 154       end
 155
 156       if new_auth.user.uuid[0..4] == Rails.configuration.ClusterID
 157         if !new_auth.api_client.andand.is_trusted
 158           return send_error("supplied new_user_token is not from a trusted client", status: 403)
 159         elsif new_auth.scopes != ['all']
 160           return send_error("supplied new_user_token has restricted scope", status: 403)
 161         end
 162       end
 163       new_user = new_auth.user
 164       @object = current_user
 165     end
 166
 167     if @object.uuid == new_user.uuid
 168       return send_error("cannot merge user to self", status: 422)
 169     end
 170
 171     if !params[:new_owner_uuid]
 172       return send_error("missing new_owner_uuid", status: 422)
 173     end
 174
 175     if !new_user.can?(write: params[:new_owner_uuid])
 176       return send_error("cannot move objects into supplied new_owner_uuid: new user does not have write permission", status: 403)
 177     end
 178
 179     act_as_system_user do
 180       @object.merge(new_owner_uuid: params[:new_owner_uuid],
 181                     new_user_uuid: new_user.uuid,
 182                     redirect_to_new_user: params[:redirect_to_new_user])
 183     end
 184     show
 185   end
 186
 187   protected
 188
 189   def self._merge_requires_parameters
 190     {
 191       new_owner_uuid: {
 192         type: 'string', required: true,
 193       },
 194       new_user_token: {
 195         type: 'string', required: false,
 196       },
 197       redirect_to_new_user: {
 198         type: 'boolean', required: false,
 199       },
 200       old_user_uuid: {
 201         type: 'string', required: false,
 202       },
 203       new_user_uuid: {
 204         type: 'string', required: false,
 205       }
 206     }
 207   end
 208
 209   def self._setup_requires_parameters
 210     {
 211       user: {
 212         type: 'object', required: false
 213       },
 214       openid_prefix: {
 215         type: 'string', required: false
 216       },
 217       repo_name: {
 218         type: 'string', required: false
 219       },
 220       vm_uuid: {
 221         type: 'string', required: false
 222       },
 223       send_notification_email: {
 224         type: 'boolean', required: false, default: false
 225       },
 226     }
 227   end
 228
 229   def self._update_uuid_requires_parameters
 230     {
 231       new_uuid: {
 232         type: 'string', required: true,
 233       },
 234     }
 235   end
 236
 237   def apply_filters(model_class=nil)
 238     return super if @read_users.any?(&:is_admin)
 239     if params[:uuid] != current_user.andand.uuid
 240       # Non-admin index/show returns very basic information about readable users.
 241       safe_attrs = ["uuid", "is_active", "email", "first_name", "last_name", "username"]
 242       if @select
 243         @select = @select & safe_attrs
 244       else
 245         @select = safe_attrs
 246       end
 247       @filters += [['is_active', '=', true]]
 248     end
 249     super
 250   end
 251 end