Move can_read permission logic into ArvadosModel.readable_by scope,
[arvados.git] / services / api / lib / current_api_client.rb
1 module CurrentApiClient
2   def current_user
3     Thread.current[:user]
4   end
5
6   def current_api_client
7     Thread.current[:api_client]
8   end
9
10   def current_api_client_authorization
11     Thread.current[:api_client_authorization]
12   end
13
14   def current_api_base
15     Thread.current[:api_url_base]
16   end
17
18   def current_default_owner
19     # owner_uuid for newly created objects
20     ((current_api_client_authorization &&
21       current_api_client_authorization.default_owner_uuid) ||
22      (current_user && current_user.default_owner_uuid) ||
23      (current_user && current_user.uuid) ||
24      nil)
25   end
26
27   # Where is the client connecting from?
28   def current_api_client_ip_address
29     Thread.current[:api_client_ip_address]
30   end
31
32   # Does the current API client authorization include any of ok_scopes?
33   def current_api_client_auth_has_scope(ok_scopes)
34     auth_scopes = current_api_client_authorization.andand.scopes || []
35     unless auth_scopes.index('all') or (auth_scopes & ok_scopes).any?
36       logger.warn "Insufficient auth scope: need #{ok_scopes}, #{current_api_client_authorization.inspect} has #{auth_scopes}"
37       return false
38     end
39     true
40   end
41
42   def system_user_uuid
43     [Server::Application.config.uuid_prefix,
44      User.uuid_prefix,
45      '000000000000000'].join('-')
46   end
47
48   def system_user
49     if not $system_user
50       real_current_user = Thread.current[:user]
51       Thread.current[:user] = User.new(is_admin: true, is_active: true)
52       $system_user = User.where('uuid=?', system_user_uuid).first
53       if !$system_user
54         $system_user = User.new(uuid: system_user_uuid,
55                                 is_active: true,
56                                 is_admin: true,
57                                 email: 'root',
58                                 first_name: 'root',
59                                 last_name: '')
60         $system_user.save!
61         $system_user.reload
62       end
63       Thread.current[:user] = real_current_user
64     end
65     $system_user
66   end
67
68   def act_as_system_user
69     if block_given?
70       user_was = Thread.current[:user]
71       Thread.current[:user] = system_user
72       ret = yield
73       Thread.current[:user] = user_was
74       ret
75     else
76       Thread.current[:user] = system_user
77     end
78   end
79 end