241 lines
9.7 KiB
Python
241 lines
9.7 KiB
Python
# 暂时不用
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# from appPublic import sshx
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# 后面有空了再改成g.debug
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import time
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import os
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import re
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from appPublic.log import debug
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import paramiko
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import socket
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import traceback
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def ssh_execute_command(host, port, username, password, commands, real_time_log=False,
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remote_exec=True, scp_map=dict()):
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try:
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# 创建 SSH 对象
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ssh = paramiko.SSHClient()
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# 允许连接不在 know_hosts 文件中的主机
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ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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# 连接服务器
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ssh.connect(hostname=host, port=port, username=username, password=password)
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all_results = []
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if scp_map:
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# 创建 SFTP 客户端对象
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sftp = ssh.open_sftp()
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# 构建脚本内部调用脚本json
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for sf,df in scp_map.items():
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# 上传文件
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debug(f"远程拷贝 {sf=} => {df=}")
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sftp.put(sf, df)
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# 关闭 SFTP 连接
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sftp.close()
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if remote_exec:
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# 通用流程
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result = ""
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error = ""
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for command in commands:
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stdin, stdout, stderr = ssh.exec_command(f'{command}', get_pty=True)
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stdin.flush()
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if real_time_log:
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debug(f"开始执行命令: {command=}, 请耐心等待...")
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# 实时读取标准输出
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for line in iter(stdout.readline, ""):
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debug(f'{line=}')
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result += line
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# 实时读取标准错误输出
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for line in iter(stderr.readline, ""):
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debug(f'{line=}')
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error += line
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else:
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result = stdout.read().decode(errors="replace")
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error = stderr.read().decode(errors="replace")
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all_results.append((result, error))
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if real_time_log:
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debug(f"命令 {command=} 执行结束")
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# 关闭连接
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ssh.close()
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return all_results
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except Exception as e:
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debug(f"SSH连接或执行命令时出错: {e=}")
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return [e]
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# ----------------------------------------以下是非Root用户进行Root操作基座-------------------------------------------
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def ssh_execute_command_noroot(host, port, username, password, commands, real_time_log=False,
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remote_exec=True, scp_map=dict(), temp_dir="/tmp/ssh_temp", sudo_timeout=500):
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"""
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增强版SSH执行命令函数，支持普通用户向root目录传输文件和执行sudo命令
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sudo_timeout参数控制sudo命令的超时时间（秒）
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"""
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try:
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# 创建SSH连接
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ssh = paramiko.SSHClient()
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ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
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ssh.connect(hostname=host, port=port, username=username, password=password)
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all_results = []
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# 创建临时目录（如果需要文件传输）
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if scp_map:
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# 创建临时目录
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create_temp_cmd = f"mkdir -p {temp_dir} && chmod 700 {temp_dir}"
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stdin, stdout, stderr = ssh.exec_command(create_temp_cmd)
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create_error = stderr.read().decode(errors="replace")
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if create_error:
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raise Exception(f"创建临时目录失败: {create_error}")
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# 创建SFTP客户端
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sftp = ssh.open_sftp()
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# 上传文件到临时目录
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temp_scp_map = {}
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for local_path, remote_path in scp_map.items():
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# 确定临时目标路径
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temp_remote_path = f"{temp_dir}/{os.path.basename(remote_path)}"
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debug(f"上传文件 {local_path} => {temp_remote_path}")
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sftp.put(local_path, temp_remote_path)
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temp_scp_map[temp_remote_path] = remote_path
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# 关闭SFTP连接
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sftp.close()
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# 将文件从临时目录移动到目标位置（需要sudo权限）
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for temp_path, final_path in temp_scp_map.items():
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# 确保目标目录存在
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mkdir_cmd = f"sudo mkdir -p $(dirname {final_path})"
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execute_sudo_command(ssh, mkdir_cmd, password, real_time_log, sudo_timeout, username)
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# 移动文件
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move_cmd = f"sudo mv {temp_path} {final_path}"
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execute_sudo_command(ssh, move_cmd, password, real_time_log, sudo_timeout, username)
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# 设置文件权限
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chmod_cmd = f"sudo chmod 644 {final_path}"
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if final_path.endswith('.sh'): # 脚本文件设置可执行权限
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chmod_cmd = f"sudo chmod 755 {final_path}"
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execute_sudo_command(ssh, chmod_cmd, password, real_time_log, sudo_timeout, username)
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# 执行远程命令（如果需要）
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if remote_exec:
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for command in commands:
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# 执行需要sudo权限的命令
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result, error = execute_sudo_command(ssh, command, password, real_time_log, sudo_timeout, username)
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all_results.append((result, error))
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# 清理临时目录
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if scp_map:
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cleanup_cmd = f"rm -rf {temp_dir}"
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stdin, stdout, stderr = ssh.exec_command(cleanup_cmd)
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# 关闭SSH连接
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ssh.close()
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return all_results
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except Exception as e:
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debug(f"SSH操作错误: {traceback.format_exc()}")
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raise e
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return [(None, str(e))]
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def execute_sudo_command(ssh, command, password, real_time_log, sudo_timeout, username):
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"""
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执行需要sudo权限的命令，处理密码交互和超时
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"""
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sudo_cmd = f"sudo -S -p '[sudo] password: ' {command}" # -k参数确保每次都需要密码
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# sudo_cmd = f"sudo -k -S -p '[sudo] password: ' {command}" # 正确方式
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stdin, stdout, stderr = ssh.exec_command(sudo_cmd, get_pty=True)
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# 真实的sudo命令执行
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# sudo -p '[sudo] password: ' echo hello
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# 设置命令超时
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channel = stdout.channel
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channel.settimeout(timeout=sudo_timeout)
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# 处理密码提示
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password_prompt = False
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initial_output = ""
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try:
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debug("等待sudo密码提示...")
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start_time = time.time()
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while True:
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ready = False
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# 检查stdout
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if channel.recv_ready():
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# 此处发现chunk长度可能为一个标准kubeconfig长度，导致无法正确读取所有输出
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chunk = channel.recv(5800).decode(errors="replace")
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initial_output += chunk
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debug(f"stdout: {chunk.strip()}")
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if re.search(r"\[sudo\] password:", chunk):
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password_prompt = True
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stdin.write(f"{password}\n")
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stdin.flush()
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break
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ready = True
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# 检查stderr
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if channel.recv_stderr_ready():
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chunk = channel.recv_stderr(5800).decode(errors="replace")
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initial_output += chunk
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debug(f"stderr: {chunk.strip()}")
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if re.search(r"\[sudo\] password:", chunk):
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password_prompt = True
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stdin.write(f"{password}\n")
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stdin.flush()
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break
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ready = True
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# 超时检测
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if time.time() - start_time > sudo_timeout:
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raise Exception(f"等待sudo密码提示超时（{sudo_timeout}秒）: {sudo_cmd}")
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if not ready:
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time.sleep(0.5) # 避免CPU占用过高
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# 如果没有收到密码提示但命令执行超时，可能是权限问题
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if not password_prompt:
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# 等待一段时间，确保没有密码提示
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time.sleep(3)
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# debug(f"ssh初步连接初始输出: {initial_output}")
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if not re.search(r"\[sudo\] password:", initial_output):
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raise Exception(f"未收到密码提示，可能sudo配置不允许该用户执行此命令: {sudo_cmd}")
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except socket.timeout:
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raise Exception(f"命令执行超时（{sudo_timeout}秒）: {sudo_cmd}")
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# 收集命令输出
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result = initial_output if not password_prompt else ""
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error = ""
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try:
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if real_time_log:
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debug(f"执行命令: {sudo_cmd}")
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# 实时读取标准输出
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while True:
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if channel.recv_ready():
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line = channel.recv(5800).decode(errors="replace")
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debug(f"输出: {line.strip()}")
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result += line
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if channel.recv_stderr_ready():
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line = channel.recv_stderr(5800).decode(errors="replace")
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debug(f"错误: {line.strip()}")
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error += line
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if channel.exit_status_ready():
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break
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time.sleep(0.1) # 避免CPU占用过高
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else:
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# 非实时模式读取输出
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result += channel.recv(-1).decode(errors="replace") if channel.recv_ready() else ""
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error += channel.recv_stderr(-1).decode(errors="replace") if channel.recv_stderr_ready() else ""
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except socket.timeout:
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raise Exception(f"命令执行超时（{sudo_timeout}秒）: {sudo_cmd}")
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# 获取命令退出状态
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exit_status = channel.recv_exit_status()
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# 检查sudo执行是否失败
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if exit_status != 0:
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if "incorrect password attempt" in error.lower():
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error = f"密码错误，无法执行sudo命令: {sudo_cmd}"
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elif "not allowed to run sudo" in error.lower():
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error = f"用户 {username} 没有sudo权限执行此命令: {sudo_cmd}"
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return result, error
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