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
|
# frozen_string_literal: true
module Types
class BaseField < GraphQL::Schema::Field
prepend Gitlab::Graphql::Authorize
include GitlabStyleDeprecations
argument_class ::Types::BaseArgument
DEFAULT_COMPLEXITY = 1
def initialize(*args, **kwargs, &block)
@calls_gitaly = !!kwargs.delete(:calls_gitaly)
@constant_complexity = !!kwargs[:complexity]
kwargs[:complexity] = field_complexity(kwargs[:resolver_class], kwargs[:complexity])
@feature_flag = kwargs[:feature_flag]
kwargs = check_feature_flag(kwargs)
kwargs = gitlab_deprecation(kwargs)
super(*args, **kwargs, &block)
end
# Based on https://github.com/rmosolgo/graphql-ruby/blob/v1.11.4/lib/graphql/schema/field.rb#L538-L563
# Modified to fix https://github.com/rmosolgo/graphql-ruby/issues/3113
def resolve_field(obj, args, ctx)
ctx.schema.after_lazy(obj) do |after_obj|
query_ctx = ctx.query.context
inner_obj = after_obj && after_obj.object
ctx.schema.after_lazy(to_ruby_args(after_obj, args, ctx)) do |ruby_args|
if authorized?(inner_obj, ruby_args, query_ctx)
if @resolve_proc
# We pass `after_obj` here instead of `inner_obj` because extensions expect a GraphQL::Schema::Object
with_extensions(after_obj, ruby_args, query_ctx) do |extended_obj, extended_args|
# Since `extended_obj` is now a GraphQL::Schema::Object, we need to get the inner object and pass that to `@resolve_proc`
extended_obj = extended_obj.object if extended_obj.is_a?(GraphQL::Schema::Object)
@resolve_proc.call(extended_obj, args, ctx)
end
else
public_send_field(after_obj, ruby_args, query_ctx)
end
else
err = GraphQL::UnauthorizedFieldError.new(object: inner_obj, type: obj.class, context: ctx, field: self)
query_ctx.schema.unauthorized_field(err)
end
end
end
end
def base_complexity
complexity = DEFAULT_COMPLEXITY
complexity += 1 if calls_gitaly?
complexity
end
def calls_gitaly?
@calls_gitaly
end
def constant_complexity?
@constant_complexity
end
def visible?(context)
return false if feature_flag.present? && !Feature.enabled?(feature_flag)
super
end
private
attr_reader :feature_flag
def feature_documentation_message(key, description)
"#{description}. Available only when feature flag `#{key}` is enabled"
end
def check_feature_flag(args)
args[:description] = feature_documentation_message(args[:feature_flag], args[:description]) if args[:feature_flag].present?
args.delete(:feature_flag)
args
end
def field_complexity(resolver_class, current)
return current if current.present? && current > 0
if resolver_class
field_resolver_complexity
else
base_complexity
end
end
def field_resolver_complexity
# Complexity can be either integer or proc. If proc is used then it's
# called when computing a query complexity and context and query
# arguments are available for computing complexity. For resolvers we use
# proc because we set complexity depending on arguments and number of
# items which can be loaded.
proc do |ctx, args, child_complexity|
# Resolvers may add extra complexity depending on used arguments
complexity = child_complexity + self.resolver&.try(:resolver_complexity, args, child_complexity: child_complexity).to_i
complexity += 1 if calls_gitaly?
complexity += complexity * connection_complexity_multiplier(ctx, args)
complexity.to_i
end
end
def connection_complexity_multiplier(ctx, args)
# Resolvers may add extra complexity depending on number of items being loaded.
field_defn = to_graphql
return 0 unless field_defn.connection?
page_size = field_defn.connection_max_page_size || ctx.schema.default_max_page_size
limit_value = [args[:first], args[:last], page_size].compact.min
multiplier = self.resolver&.try(:complexity_multiplier, args).to_f
limit_value * multiplier
end
end
end
|
