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

   1 class Arvados::V1::UsersController < ApplicationController
   2   skip_before_filter :find_object_by_uuid, only:
   3     [:activate, :event_stream, :current, :system, :setup]
   4   skip_before_filter :render_404_if_no_object, only:
   5     [:activate, :event_stream, :current, :system, :setup]
   6   before_filter :admin_required, only: [:setup, :unsetup]
   7
   8   def current
   9     @object = current_user
  10     show
  11   end
  12   def system
  13     @object = system_user
  14     show
  15   end
  16
  17   class ChannelStreamer
  18     Q_UPDATE_INTERVAL = 12
  19     def initialize(opts={})
  20       @opts = opts
  21     end
  22     def each
  23       return unless @opts[:channel]
  24       @redis = Redis.new(:timeout => 0)
  25       @redis.subscribe(@opts[:channel]) do |event|
  26         event.message do |channel, msg|
  27           yield msg + "\n"
  28         end
  29       end
  30     end
  31   end
  32
  33   def event_stream
  34     channel = current_user.andand.uuid
  35     if current_user.andand.is_admin
  36       channel = params[:uuid] || channel
  37     end
  38     if client_accepts_plain_text_stream
  39       self.response.headers['Last-Modified'] = Time.now.ctime.to_s
  40       self.response_body = ChannelStreamer.new(channel: channel)
  41     else
  42       render json: {
  43         href: url_for(uuid: channel),
  44         comment: ('To retrieve the event stream as plain text, ' +
  45                   'use a request header like "Accept: text/plain"')
  46       }
  47     end
  48   end
  49
  50   def activate
  51     if current_user.andand.is_admin && params[:uuid]
  52       @object = User.find params[:uuid]
  53     else
  54       @object = current_user
  55     end
  56     if not @object.is_active
  57       if not (current_user.is_admin or @object.is_invited)
  58         logger.warn "User #{@object.uuid} called users.activate " +
  59           "but is not invited"
  60         raise ArgumentError.new "Cannot activate without being invited."
  61       end
  62       act_as_system_user do
  63         required_uuids = Link.where("owner_uuid = ? and link_class = ? and name = ? and tail_uuid = ? and head_uuid like ?",
  64                                     system_user_uuid,
  65                                     'signature',
  66                                     'require',
  67                                     system_user_uuid,
  68                                     Collection.uuid_like_pattern).
  69           collect(&:head_uuid)
  70         signed_uuids = Link.where(owner_uuid: system_user_uuid,
  71                                   link_class: 'signature',
  72                                   name: 'click',
  73                                   tail_uuid: @object.uuid,
  74                                   head_uuid: required_uuids).
  75           collect(&:head_uuid)
  76         todo_uuids = required_uuids - signed_uuids
  77         if todo_uuids == []
  78           @object.update_attributes is_active: true
  79           logger.info "User #{@object.uuid} activated"
  80         else
  81           logger.warn "User #{@object.uuid} called users.activate " +
  82             "before signing agreements #{todo_uuids.inspect}"
  83           raise ArvadosModel::PermissionDeniedError.new \
  84           "Cannot activate without user agreements #{todo_uuids.inspect}."
  85         end
  86       end
  87     end
  88     show
  89   end
  90
  91   # create user object and all the needed links
  92   def setup
  93     @object = nil
  94     if params[:uuid]
  95       @object = User.find_by_uuid params[:uuid]
  96       if !@object
  97         return render_404_if_no_object
  98       end
  99       object_found = true
 100     else
 101       if !params[:user]
 102         raise ArgumentError.new "Required uuid or user"
 103       else
 104         if params[:user]['uuid']
 105           @object = User.find_by_uuid params[:user]['uuid']
 106           if @object
 107             object_found = true
 108           end
 109         end
 110
 111         if !@object
 112           if !params[:user]['email']
 113             raise ArgumentError.new "Require user email"
 114           end
 115
 116           if !params[:openid_prefix]
 117             raise ArgumentError.new "Required openid_prefix parameter is missing."
 118           end
 119
 120           @object = model_class.create! resource_attrs
 121         end
 122       end
 123     end
 124
 125     if object_found
 126       @response = @object.setup_repo_vm_links params[:repo_name],
 127                     params[:vm_uuid], params[:openid_prefix]
 128     else
 129       @response = User.setup @object, params[:openid_prefix],
 130                     params[:repo_name], params[:vm_uuid]
 131     end
 132
 133     render json: { kind: "arvados#HashList", items: @response }
 134   end
 135
 136   # delete user agreements, vm, repository, login links; set state to inactive
 137   def unsetup
 138     reload_object_before_update
 139     @object.unsetup
 140     show
 141   end
 142
 143 end