Lighttpd cgi python无法运行系统进程

Question

我正在尝试从Web python脚本运行终端命令。我尝试了很多东西，但没有任何工作......例如：将'www-data'添加到sudoers，使用完整路径到bin，使用sudo word运行命令，使用3个不同的系统调用（os.spawnl和subprocess）和none那是有效的。只读命令，如“ps aux”，只输出信息有效，但对文件的简单回显则不然。这样做可以满足需要的需求。我还能尝试什么？

输出示例：意外错误：（，CalledProcessError（2，'/ bin / echo hello> /var/www/html/cgi-bin/test2.htm'），）

在该示例中，/ var / www / html / cgi-bin /文件夹由“www-data”拥有，与用户服务器配置相同。

<!-- language: python -->
#!/usr/bin/python3
# coding=utf-8
import os
import sys
import subprocess
import cgi
import subprocess

SCRIPT_PATH = "/var/www/html/scripts/aqi3.py"
DATA_FILE = "/var/www/html/assets/aqi.json"
KILL_PROCESS = "ps aux | grep " + SCRIPT_PATH + " | grep -v "grep" | awk '{print $2}' | xargs kill -9"
START_PROCESS = "/usr/bin/python3 " + SCRIPT_PATH + " start > /dev/null 2>&1 &"
STOP_PROCESS = "/usr/bin/python3 " + SCRIPT_PATH + " stop > /dev/null 2>&1 &"


# Don't edit
def killProcess():
    os.spawnl(os.P_NOWAIT, KILL_PROCESS)
    try:
        os.spawnl(os.P_NOWAIT, "/bin/echo hello > /var/www/html/cgi-bin/test2.htm")
        proc = subprocess.Popen(['sudo', 'echo', 'hello > /var/www/html/cgi-bin/test3.htm'])
        print(subprocess.check_output("/bin/echo hello > /var/www/html/cgi-bin/test2.htm", shell=True, timeout = 10))
    except:
        print("Unexpected error:", sys.exc_info())

    print(KILL_PROCESS)


def stopSensor():
    killProcess()
    os.spawnl(os.P_NOWAIT, STOP_PROCESS)


def restartProcess():
    killProcess()
    print(START_PROCESS)
    print(os.spawnl(os.P_NOWAIT, START_PROCESS))


def main():
    arguments = cgi.FieldStorage()
    for key in arguments.keys():
        value = arguments[key].value
        if key == 'action':
            if value == 'stop':
                stopSensor()
                print("ok")
                return
            elif value == 'start' or value == 'restart':
                restartProcess()
                print("ok")
                return
            elif value == 'resetdata':
                try:
                    with open(DATA_FILE, 'w') as outfile:
                        outfile.write('[]')
                except:
                    print("Unexpected error:", sys.exc_info())

                print("ok")
                return

    print("?")


main()