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   accept_param_as_json :updates
   8
   9   skip_before_action :find_object_by_uuid, only:
  10     [:activate, :current, :system, :setup, :merge, :batch_update]
  11   skip_before_action :render_404_if_no_object, only:
  12     [:activate, :current, :system, :setup, :merge, :batch_update]
  13   before_action :admin_required, only: [:setup, :unsetup, :update_uuid, :batch_update]
  14
  15   # Internal API used by controller to update local cache of user
  16   # records from LoginCluster.
  17   def batch_update
  18     @objects = []
  19     params[:updates].andand.each do |uuid, attrs|
  20       begin
  21         u = User.find_or_create_by(uuid: uuid)
  22       rescue ActiveRecord::RecordNotUnique
  23         retry
  24       end
  25       u.update_attributes!(attrs)
  26       @objects << u
  27     end
  28     @offset = 0
  29     @limit = -1
  30     render_list
  31   end
  32
  33   def current
  34     if current_user
  35       @object = current_user
  36       show
  37     else
  38       send_error("Not logged in", status: 401)
  39     end
  40   end
  41
  42   def system
  43     @object = system_user
  44     show
  45   end
  46
  47   def activate
  48     if current_user.andand.is_admin && params[:uuid]
  49       @object = User.find params[:uuid]
  50     else
  51       @object = current_user
  52     end
  53     if not @object.is_active
  54       if not (current_user.is_admin or @object.is_invited)
  55         logger.warn "User #{@object.uuid} called users.activate " +
  56           "but is not invited"
  57         raise ArgumentError.new "Cannot activate without being invited."
  58       end
  59       act_as_system_user do
  60         required_uuids = Link.where("owner_uuid = ? and link_class = ? and name = ? and tail_uuid = ? and head_uuid like ?",
  61                                     system_user_uuid,
  62                                     'signature',
  63                                     'require',
  64                                     system_user_uuid,
  65                                     Collection.uuid_like_pattern).
  66           collect(&:head_uuid)
  67         signed_uuids = Link.where(owner_uuid: system_user_uuid,
  68                                   link_class: 'signature',
  69                                   name: 'click',
  70                                   tail_uuid: @object.uuid,
  71                                   head_uuid: required_uuids).
  72           collect(&:head_uuid)
  73         todo_uuids = required_uuids - signed_uuids
  74         if todo_uuids.empty?
  75           @object.update_attributes is_active: true
  76           logger.info "User #{@object.uuid} activated"
  77         else
  78           logger.warn "User #{@object.uuid} called users.activate " +
  79             "before signing agreements #{todo_uuids.inspect}"
  80           raise ArvadosModel::PermissionDeniedError.new \
  81           "Cannot activate without user agreements #{todo_uuids.inspect}."
  82         end
  83       end
  84     end
  85     show
  86   end
  87
  88   # create user object and all the needed links
  89   def setup
  90     if params[:uuid]
  91       @object = User.find_by_uuid(params[:uuid])
  92       if !@object
  93         return render_404_if_no_object
  94       end
  95     elsif !params[:user] || params[:user].empty?
  96       raise ArgumentError.new "Required uuid or user"
  97     elsif !params[:user]['email']
  98       raise ArgumentError.new "Require user email"
  99     elsif !params[:openid_prefix]
 100       raise ArgumentError.new "Required openid_prefix parameter is missing."
 101     else
 102       @object = model_class.create! resource_attrs
 103     end
 104
 105     # It's not always possible for the client to know the user's
 106     # username when submitting this request: the username might have
 107     # been assigned automatically in create!() above. If client
 108     # provided a plain repository name, prefix it with the username
 109     # now that we know what it is.
 110     if params[:repo_name].nil?
 111       full_repo_name = nil
 112     elsif @object.username.nil?
 113       raise ArgumentError.
 114         new("cannot setup a repository because user has no username")
 115     elsif params[:repo_name].index("/")
 116       full_repo_name = params[:repo_name]
 117     else
 118       full_repo_name = "#{@object.username}/#{params[:repo_name]}"
 119     end
 120
 121     @response = @object.setup(repo_name: full_repo_name,
 122                               vm_uuid: params[:vm_uuid],
 123                               openid_prefix: params[:openid_prefix])
 124
 125     # setup succeeded. send email to user
 126     if params[:send_notification_email]
 127       UserNotifier.account_is_setup(@object).deliver_now
 128     end
 129
 130     send_json kind: "arvados#HashList", items: @response.as_api_response(nil)
 131   end
 132
 133   # delete user agreements, vm, repository, login links; set state to inactive
 134   def unsetup
 135     reload_object_before_update
 136     @object.unsetup
 137     show
 138   end
 139
 140   # Change UUID to a new (unused) uuid and transfer all owned/linked
 141   # objects accordingly.
 142   def update_uuid
 143     @object.update_uuid(new_uuid: params[:new_uuid])
 144     show
 145   end
 146
 147   def merge
 148     if (params[:old_user_uuid] || params[:new_user_uuid])
 149       if !current_user.andand.is_admin
 150         return send_error("Must be admin to use old_user_uuid/new_user_uuid", status: 403)
 151       end
 152       if !params[:old_user_uuid] || !params[:new_user_uuid]
 153         return send_error("Must supply both old_user_uuid and new_user_uuid", status: 422)
 154       end
 155       new_user = User.find_by_uuid(params[:new_user_uuid])
 156       if !new_user
 157         return send_error("User in new_user_uuid not found", status: 422)
 158       end
 159       @object = User.find_by_uuid(params[:old_user_uuid])
 160       if !@object
 161         return send_error("User in old_user_uuid not found", status: 422)
 162       end
 163     else
 164       if !Thread.current[:api_client].andand.is_trusted
 165         return send_error("supplied API token is not from a trusted client", status: 403)
 166       elsif Thread.current[:api_client_authorization].scopes != ['all']
 167         return send_error("cannot merge with a scoped token", status: 403)
 168       end
 169
 170       new_auth = ApiClientAuthorization.validate(token: params[:new_user_token])
 171       if !new_auth
 172         return send_error("invalid new_user_token", status: 401)
 173       end
 174
 175       if new_auth.user.uuid[0..4] == Rails.configuration.ClusterID
 176         if !new_auth.api_client.andand.is_trusted
 177           return send_error("supplied new_user_token is not from a trusted client", status: 403)
 178         elsif new_auth.scopes != ['all']
 179           return send_error("supplied new_user_token has restricted scope", status: 403)
 180         end
 181       end
 182       new_user = new_auth.user
 183       @object = current_user
 184     end
 185
 186     if @object.uuid == new_user.uuid
 187       return send_error("cannot merge user to self", status: 422)
 188     end
 189
 190     if !params[:new_owner_uuid]
 191       return send_error("missing new_owner_uuid", status: 422)
 192     end
 193
 194     if !new_user.can?(write: params[:new_owner_uuid])
 195       return send_error("cannot move objects into supplied new_owner_uuid: new user does not have write permission", status: 403)
 196     end
 197
 198     act_as_system_user do
 199       @object.merge(new_owner_uuid: params[:new_owner_uuid],
 200                     new_user_uuid: new_user.uuid,
 201                     redirect_to_new_user: params[:redirect_to_new_user])
 202     end
 203     show
 204   end
 205
 206   protected
 207
 208   def self._merge_requires_parameters
 209     {
 210       new_owner_uuid: {
 211         type: 'string', required: true,
 212       },
 213       new_user_token: {
 214         type: 'string', required: false,
 215       },
 216       redirect_to_new_user: {
 217         type: 'boolean', required: false,
 218       },
 219       old_user_uuid: {
 220         type: 'string', required: false,
 221       },
 222       new_user_uuid: {
 223         type: 'string', required: false,
 224       }
 225     }
 226   end
 227
 228   def self._setup_requires_parameters
 229     {
 230       user: {
 231         type: 'object', required: false
 232       },
 233       openid_prefix: {
 234         type: 'string', required: false
 235       },
 236       repo_name: {
 237         type: 'string', required: false
 238       },
 239       vm_uuid: {
 240         type: 'string', required: false
 241       },
 242       send_notification_email: {
 243         type: 'boolean', required: false, default: false
 244       },
 245     }
 246   end
 247
 248   def self._update_uuid_requires_parameters
 249     {
 250       new_uuid: {
 251         type: 'string', required: true,
 252       },
 253     }
 254   end
 255
 256   def apply_filters(model_class=nil)
 257     return super if @read_users.any?(&:is_admin)
 258     if params[:uuid] != current_user.andand.uuid
 259       # Non-admin index/show returns very basic information about readable users.
 260       safe_attrs = ["uuid", "is_active", "email", "first_name", "last_name", "username"]
 261       if @select
 262         @select = @select & safe_attrs
 263       else
 264         @select = safe_attrs
 265       end
 266       @filters += [['is_active', '=', true]]
 267     end
 268     super
 269   end
 270 end