Class: Http::SSLValidator

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

Class Method Summary collapse

Class Method Details

.configure(logger) ⇒ Object 



8
9
10
11
 
# File 'lib/ssl_validator.rb', line 8

def configure(logger)
  @@logger = logger || Logger.new(STDOUT)
  create_store
end

.configured? ⇒ Boolean

Returns:

  • (Boolean) 


13
14
15
 
# File 'lib/ssl_validator.rb', line 13

def configured?
  class_variable_defined?("@@logger")
end

.validate(certs, host) ⇒ Object

Completes the 3 steps to certificate chain verification Also applies if there is just one cert in the chain, but the last step won’t run



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
 
# File 'lib/ssl_validator.rb', line 22

def validate(certs, host)
  configure unless configured?

  certs = certs.collect { |c| OpenSSL::X509::Certificate.new(c) }
  @@logger.debug("Verifying certs for #{host}")
  
  # 1. Verify that the last cert has a valid hostname 
  unless OpenSSL::SSL.verify_certificate_identity(certs.last, host)
    @@logger.error("Hostname #{host} does not match cert: #{certs.last}")
    return false
  end
          
  # 2. Verify that the first cert can be validated by a root certificate
  unless @@store.verify(certs.first)
    @@logger.error("Cert not validated by any of the root certificates in my store: #{certs.first}")
    return false
  end
  
  # 3. Verify that every cert in the chain is validated by the cert after it
  (certs.length - 1).times do |i|
    cert_a = certs[i+1]
    cert_b = certs[i]
    unless cert_a.verify(cert_b.public_key)
      @@logger.error("Broken link in certificate chain for #{host} between #{cert_a} and #{cert_b}")
      return false
    end
  end
  true
end