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#!/usr/bin/python3
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# coding: utf-8
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"""
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author: 猪猪侠 https://github.com/ring04h
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"""
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import logging
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import subprocess
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logging.basicConfig(level=logging.DEBUG)
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#
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# (crontab -l;echo '0 2 * * * /usr/local/bin/python3 /data/script/zombie_clean.py') | crontab -
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#
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import logging
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import subprocess
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# 判断是否超时的函数
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def is_timeout(etime):
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"""
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判断进程的运行时间是否超时。
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参数：
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etime (str)：进程的运行时间字符串，格式可能为 "天数-小时数" 或直接是小时数。
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返回：
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bool：如果天数大于等于 1 或者小时数超过一定阈值（这里没有具体指定阈值），返回 True，表示超时；否则返回 False。
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"""
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if '-' in etime:
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day, hour = etime.split('-')
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return True if int(day) >= 1 else False
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else:
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return False
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# 执行命令的函数
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def cmdprocess(cmdline):
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"""
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执行给定的命令行。
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参数：
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cmdline (str)：要执行的命令行字符串。
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返回：
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tuple：包含命令的标准输出、标准错误输出和返回码。
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"""
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# 使用 subprocess.Popen 执行命令，捕获标准输出和标准错误输出
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pipe = subprocess.Popen(cmdline, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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# 等待命令执行完成，获取标准输出和标准错误输出
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output, stderr = pipe.communicate()
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# 获取命令的返回码
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return_code = pipe.returncode
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# 将标准错误输出解码为字符串
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stderr = stderr.decode(errors='replace')
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# 将标准输出解码为字符串
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output = output.decode(errors='replace')
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return output, stderr, return_code
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def main():
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# 构建查找 crawlergo 进程 ID 的命令行
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cmdline = "ps -ef | grep crawlergo | grep -v grep | awk '{print $2}'"
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# 执行命令，获取输出、错误输出和返回码
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output, stderr, return_code = cmdprocess(cmdline)
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# 如果返回码不为 0，表示命令执行失败，直接返回
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if return_code!= 0:
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return
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# 将输出的进程 ID 按行分割成列表
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zombie_pids = output.splitlines()
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# 遍历每个 crawlergo 的进程 ID
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for zombie_pid in zombie_pids:
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# 构建查找指定进程 ID 的运行时间的命令行
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cmdline = f'''ps -eo pid,etime | grep {zombie_pid}'''
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# 执行命令，获取输出、错误输出和返回码
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ps_output, ps_stderr, ps_return_code = cmdprocess(cmdline)
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# 如果返回码不为 0，表示命令执行失败，继续下一个进程 ID 的处理
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if ps_return_code!= 0:
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continue
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# 遍历输出的每一行（包含进程 ID 和运行时间）
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for line in ps_output.splitlines():
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# 将每行按空格分割，获取进程 ID 和运行时间
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pid, etime = line.split()
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# 判断运行时间是否超时
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status = is_timeout(etime)
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# 打印调试信息，包括进程 ID、运行时间和是否超时
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logging.debug(f"PID: {pid:<8} ETIME: {etime:<15} TIMEOUT: {status}")
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# 如果没有超时，继续下一个进程 ID 的处理
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if not status:
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continue
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# 构建杀死进程的命令行
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kill_cmdline = f"kill -9 {pid}"
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# 打印调试信息，表示要执行的杀死进程的命令
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logging.debug(f"call kill : [{kill_cmdline}]")
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# 执行杀死进程的命令
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cmdprocess(kill_cmdline)
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if __name__ == "__main__":
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main()
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