115 lines
3.7 KiB
Ruby
115 lines
3.7 KiB
Ruby
# <<*>> -^v- SNOWARE APPLICATION
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# usage: MINECRAFT Server monitoring.
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# author: S.A.
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# time: 2026-06-07
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# Copyright (c) [2026] [S.A. SNOWARE-SCU]
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# [MineSentinel] is licensed under Mulan PubL v2.
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# You can use this software according to the terms and conditions of the Mulan PubL v2.
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# You may obtain a copy of Mulan PubL v2 at:
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# http://license.coscl.org.cn/MulanPubL-2.0
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# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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# See the Mulan PubL v2 for more details.
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# frozen_string_literal: true
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module ServerStatusDetector
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require 'socket'
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require 'timeout'
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class TcpServer
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# rubocop:disable Metrics/MethodLength, Metrics/AbcSize
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# @param host [String]
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# @param port [Integer]
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# @param timeout [Integer]
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# @return [Hash{Symbol=>Integer, Symbol=>Symbol, Symbol=>Float,nil}]
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def self.test_port(host = '127.0.0.1', port = 25_565, timeout = 10)
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result = {
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port: port,
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status: :unknown,
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response_time: nil
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}
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begin_time = Time.now
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# 带错误处理的代码需要使用 begin...end
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begin
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Timeout.timeout(timeout) do # 此方法接收整数和代码块作为参数，并在超时时引发错误
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socket = TCPSocket.new(host, port)
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result[:status] = :open
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result[:response_time] = (Time.now - begin_time).round(4)
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socket.close
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end
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rescue Timeout::Error
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result[:status] = :timeout
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rescue Errno::ECONNREFUSED
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result[:status] = :closed
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rescue Errno::ECONNRESET
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result[:status] = :interrupted
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rescue Errno::ENETUNREACH, Errno::EHOSTUNREACH
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result[:status] = :unreachable
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rescue StandardError => e
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result[:status] = :error
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result[:error] = e.message
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end
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result
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end
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# rubocop:enable Metrics/MethodLength, Metrics/AbcSize
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end
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# 继承为TcpServer编写的属性和方法
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class MinecraftServer < TcpServer
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# rubocop:disable Metrics/MethodLength
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# @return [Hash{Symbol=>Boolean, Symbol=>Array<String>, Symbol=>String}]
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def self_diag
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res = test_port('127.0.0.1', 25_565)
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unless res[:error].nil?
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message = "Unexpected ERROR when testing SMP by TCP: #{res[:status]},INFO: #{res[:error]}"
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puts message
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return {
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type: false,
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operation: %w[Record],
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message: message
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}
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# 立刻错误处理是好习惯
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end
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case res[:status]
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when :open
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MethodExecutor.record('debug', 'self_diag',
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"TCP check OK — #{res[:response_time]}s")
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{
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type: true
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}
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when :timeout
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MethodExecutor.record('warn', 'self_diag',
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'TCP check timed out.')
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{
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type: false,
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operation: %w[Record],
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message: 'We sent packet without response.'
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}
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when :closed
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MethodExecutor.record('warn', 'self_diag',
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'TCP port closed — server is down.')
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{
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type: false,
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operation: %w[Record ForceResetServerProcess], # 重启时注意要设置最大尝试次数
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message: 'Server died for unknown reason, and will be restarted.'
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}
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else
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MethodExecutor.record('warn', 'self_diag',
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"TCP check returned unexpected status: #{res[:status]}.")
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{
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type: false,
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operation: %w[Record],
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message: "Unexpected status: #{res[:status]}."
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}
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end
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end
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# rubocop:enable Metrics/MethodLength
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end
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end
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