Class: Requests::DigestAuth

Inherits:
Object
  • Object
show all
Includes:
AuthBase
Defined in:
lib/requests/auth.rb

Instance Method Summary collapse

Constructor Details

#initialize(user, pass) ⇒ DigestAuth

Returns a new instance of DigestAuth.



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# File 'lib/requests/auth.rb', line 34

def initialize(user, pass)
  @user = user
  @pass = pass
end

Instance Method Details

#call(hdrs, meth: nil, url: nil, prev_resp: nil) ⇒ Object 



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# File 'lib/requests/auth.rb', line 38

def call(hdrs, meth: nil, url: nil, prev_resp: nil)
  return unless prev_resp
  wa = prev_resp.headers['www-authenticate']
  return unless wa && wa =~ /\ADigest/
  pr = parse_challenge(wa)
  realm  = pr['realm']
  nonce  = pr['nonce']
  qop    = pr['qop']
  path   = URI.parse(url).request_uri
  ha1 = Digest::MD5.hexdigest("#{@user}:#{realm}:#{@pass}")
  ha2 = Digest::MD5.hexdigest("#{meth}:#{path}")
  if qop
    nc = '00000001'
    cnonce = SecureRandom.hex(8)
    response = Digest::MD5.hexdigest("#{ha1}:#{nonce}:#{nc}:#{cnonce}:#{qop}:#{ha2}")
    hdrs['Authorization'] =
      "Digest username=\"#{@user}\", realm=\"#{realm}\", nonce=\"#{nonce}\", " \
      "uri=\"#{path}\", qop=#{qop}, nc=#{nc}, cnonce=\"#{cnonce}\", response=\"#{response}\""
  else
    response = Digest::MD5.hexdigest("#{ha1}:#{nonce}:#{ha2}")
    hdrs['Authorization'] =
      "Digest username=\"#{@user}\", realm=\"#{realm}\", nonce=\"#{nonce}\", " \
      "uri=\"#{path}\", response=\"#{response}\""
  end
end