用apache和php运行python，命令行root抛出成功

Question

我目前正在尝试为 web 服务器创建一个作为 root 脚本的登录，我有一个小问题，php 正在执行（使用 exec()） /usr/bin/python /var/www/html/QWP/public_html/scripts/checkadminpass.py root rootpassword检查输入的密码是否是 root 密码，当我以 root 身份在终端中编写此命令时它正在工作，但是当我在 apache php 中运行它时，我得到一个 python 异常getspnam(): name not found .

Python脚本：

import crypt # Interface to crypt(3), to encrypt passwords.
import spwd # Shadow password database (to read /etc/shadow).
import sys # get parameters

def login(user, password):
    """Tries to authenticate a user.
    Returns True if the authentication succeeds, else the reason
    (string) is returned."""
    try:
        enc_pwd = spwd.getspnam(user)[1]
        if enc_pwd in ["LK", "*"]:
            return "false"
        if enc_pwd == "!!":
            return "false"
        # Encryption happens here, the hash is stripped from the
        # enc_pwd and the algorithm id and salt are used to encrypt
        # the password.
        if crypt.crypt(password, enc_pwd) == enc_pwd:
            return True
        else:
            return "false"
    except KeyError as errn:
        return "false" # i tested and i GET THIS FALSE (getspnam(): name not found), when i run it terminal i get the correct response
    return "false"

if __name__ == "__main__":
    username = sys.argv[1]
    password = sys.argv[2]
    status = login(username, password)
    if status == True:
        print("true")
    else:
        print(status)

这个 exec() php 函数由apache用户运行。 任何人都可以帮助我吗？