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# -*- coding: binary -*-
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module Msf
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  module Auxiliary::Etcd
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    TCP_PORT = 2379
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    def initialize(info = {})
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      super
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      register_options(
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        [
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          Opt::RPORT(TCP_PORT),
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          OptString.new('TARGETURI', [true, 'base URI of etcd', '/'])
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        ]
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      )
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      register_autofilter_ports([TCP_PORT])
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    end
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    def fingerprint_service(target_uri)
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      res = send_request_raw(
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        'uri'    => normalize_uri(target_uri, 'version'),
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        'method' => 'GET'
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      )
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      if res && res.code == 200
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        begin
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          banner = res.get_json_document
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        rescue JSON::ParserError => e
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          print_error("Failed to read JSON from etcd version response: #{e.class} - #{e.message}}")
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          return
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        end
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      elsif res
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        vprint_error("Invalid response #{res.code} for etcd version response")
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        return
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      else
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        vprint_error("No response for etcd version probe")
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        return
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      end
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      report_service(
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        host: rhost,
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        port: rport,
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        name: 'etcd',
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        proto: 'tcp',
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        info: banner
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      )
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      banner
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    end
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  end
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end
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