Class: Rack::Lint

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/fastlint.rb

Class Method Summary collapse

Class Method Details

.fastlint(res) ⇒ Object 



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
 
# File 'lib/rack/fastlint.rb', line 7

def self.fastlint res
  begin
    return false unless res.respond_to?(:to_a) && res.count == 3

    status, headers, body = res.to_a
    return false if status.nil?
    return false if headers.nil?
    return false if body.nil?

    return false unless status.to_i >= 100 || status.to_i == -1
    return false unless headers.respond_to? :each
    return false unless body.respond_to? :each
    return false if body.respond_to?(:to_path) && !File.exist?(body.to_path)
  
    if status.to_i < 200 || [204, 205, 304].include?(status.to_i)
      return false if headers.member? "Content-Length"
      return false if headers.member? "Content-Type"
    end
  
    headers.each { |k,v|
      next if k.start_with? "rack."
      return false unless k.kind_of? String
      return false unless v.kind_of? String
      return false if k == "Status"
      return false unless k !~ /[:\n]/
      return false unless k !~ /[-_]\z/
      return false unless k =~ /\A[a-zA-Z][a-zA-Z0-9_-]*\z/
    }

    body.each { |p| return false unless p.respond_to? :to_str } # to_str is implemented by classes that act like strigs
    true
  rescue => e
    false
  end
end