1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
module API
module APIHelpers
PRIVATE_TOKEN_HEADER = "HTTP_PRIVATE_TOKEN"
PRIVATE_TOKEN_PARAM = :private_token
SUDO_HEADER ="HTTP_SUDO"
SUDO_PARAM = :sudo
def current_user
@current_user ||= User.find_by_authentication_token(params[PRIVATE_TOKEN_PARAM] || env[PRIVATE_TOKEN_HEADER])
identifier = sudo_identifier()
# If the sudo is the current user do nothing
if (identifier && !(@current_user.id == identifier || @current_user.username == identifier))
render_api_error!('403 Forbidden: Must be admin to use sudo', 403) unless @current_user.is_admin?
begin
@current_user = User.by_username_or_id(identifier)
rescue => ex
not_found!("No user id or username for: #{identifier}")
end
not_found!("No user id or username for: #{identifier}") if current_user.nil?
end
@current_user
end
def sudo_identifier()
identifier ||= params[SUDO_PARAM] ||= env[SUDO_HEADER]
# Regex for integers
if (!!(identifier =~ /^[0-9]+$/))
identifier.to_i
else
identifier
end
end
def user_project
@project ||= find_project(params[:id])
@project || not_found!
end
def find_project(id)
project = Project.find_by_id(id) || Project.find_with_namespace(id)
if project && can?(current_user, :read_project, project)
project
else
nil
end
end
def paginate(object)
object.page(params[:page]).per(params[:per_page].to_i)
end
def authenticate!
unauthorized! unless current_user
end
def authenticated_as_admin!
forbidden! unless current_user.is_admin?
end
def authorize! action, subject
unless abilities.allowed?(current_user, action, subject)
forbidden!
end
end
def can?(object, action, subject)
abilities.allowed?(object, action, subject)
end
# Checks the occurrences of required attributes, each attribute must be present in the params hash
# or a Bad Request error is invoked.
#
# Parameters:
# keys (required) - A hash consisting of keys that must be present
def required_attributes!(keys)
keys.each do |key|
bad_request!(key) unless params[key].present?
end
end
def attributes_for_keys(keys)
attrs = {}
keys.each do |key|
attrs[key] = params[key] if params[key].present?
end
attrs
end
# error helpers
def forbidden!
render_api_error!('403 Forbidden', 403)
end
def bad_request!(attribute)
message = ["400 (Bad request)"]
message << "\"" + attribute.to_s + "\" not given"
render_api_error!(message.join(' '), 400)
end
def not_found!(resource = nil)
message = ["404"]
message << resource if resource
message << "Not Found"
render_api_error!(message.join(' '), 404)
end
def unauthorized!
render_api_error!('401 Unauthorized', 401)
end
def not_allowed!
render_api_error!('Method Not Allowed', 405)
end
def render_api_error!(message, status)
error!({'message' => message}, status)
end
private
def abilities
@abilities ||= begin
abilities = Six.new
abilities << Ability
abilities
end
end
end
end
|
