# File lib/webrick/httpauth/authenticator.rb, line 23
23:       def check_init(config)
24:         [:UserDB, :Realm].each{|sym|
25:           unless config[sym]
26:             raise ArgumentError, "Argument #{sym.inspect} missing."
27:           end
28:         } 
29:         @realm     = config[:Realm]
30:         @userdb    = config[:UserDB]
31:         @logger    = config[:Logger] || Log::new($stderr)
32:         @reload_db = config[:AutoReloadUserDB]
33:         @request_field   = self::class::RequestField
34:         @response_field  = self::class::ResponseField
35:         @resp_info_field = self::class::ResponseInfoField
36:         @auth_exception  = self::class::AuthException
37:         @auth_scheme     = self::class::AuthScheme
38:       end

    # File lib/webrick/httpauth/authenticator.rb, line 40
40:       def check_scheme(req)
41:         unless credentials = req[@request_field]
42:           error("no credentials in the request.")
43:           return nil 
44:         end  
45:         unless match = /^#{@auth_scheme}\s+/.match(credentials)
46:           error("invalid scheme in %s.", credentials)
47:           info("%s: %s", @request_field, credentials) if $DEBUG
48:           return nil
49:         end
50:         return match.post_match
51:       end

    # File lib/webrick/httpauth/authenticator.rb, line 59
59:       def error(fmt, *args)
60:         if @logger.error?
61:           log(:error, fmt, *args)
62:         end
63:       end

    # File lib/webrick/httpauth/authenticator.rb, line 65
65:       def info(fmt, *args)
66:         if @logger.info?
67:           log(:info, fmt, *args)
68:         end
69:       end

    # File lib/webrick/httpauth/authenticator.rb, line 53
53:       def log(meth, fmt, *args)
54:         msg = format("%s %s: ", @auth_scheme, @realm)
55:         msg << fmt % args
56:         @logger.send(meth, msg)
57:       end