php脚本执行python脚本来编写一些文件

I have a php script that calls a python script which in turn is in charge of writing some files to disk.

我有一个调用python脚本的php脚本,而python脚本又负责将一些文件写入磁盘。

If I execute the php script by entering its url in the web browser it can perform several filesystem related tasks:

如果我通过在Web浏览器中输入其URL来执行php脚本,它可以执行几个与文件系统相关的任务:

it's able to create a dir

它能够创建一个目录

it's able to chmod the dir

它能够调整目录

but it's not able to execute the python script which would create and write other files.

但它无法执行创建和编写其他文件的python脚本。

The strange thing is that if I run the python script manually as www-data:

奇怪的是,如果我手动运行python脚本作为www-data:

user@host $ sudo su www-data
passwd for sudo:
$ whoami
www-data
$ python my_script.py

It works like a charm.

它就像一个魅力。

I'm assuming the user when I run the script through the browser is www-data. So why is the result in the console any different?

我通过浏览器运行脚本时假设用户是www-data。那么为什么控制台的结果会有所不同呢?

SOLVED:

Python script starts off by importing some modules from my repository, which are appended to the path via .bashrc or .bash_profile on login consoles. These modules were not available from the browser to the user www-data. So adding this to the python script solved it:

Python脚本从我的存储库导入一些模块开始,这些模块通过登录控制台上的.bashrc或.bash_profile附加到路径中。这些模块无法从浏览器提供给用户www-data。所以将它添加到python脚本解决了它:

import sys
sys.path.insert(0, 'path_to_my_modules')

solved it.

I apologize for the question. It didn't bring all the necessary information for users to lead to a solution. I guess the problem was so broad that it was difficult for me to start thinking of where its root was.

我为这个问题道歉。它没有为用户带来所有必要的信息来导致解决方案。我想问题是如此广泛,以至于我很难开始考虑其根源所在。

I lacked a good debugging technique to see what the error was. I commented out all the python script and begun with a simple print 'here'. Uncommenting lines one by one showed me the place where it just didn't print anything anymore (the error was obvious then).

我缺乏一个好的调试技术来查看错误是什么。我注释掉了所有的python脚本,并以简单的'here'开头。逐行取消注释,向我展示了它不再打印任何东西的地方(错误很明显)。

1 个解决方案

#1

First of all, don't assume that the user is www-data. You should get the output from whoami running from the PHP script to see if it is www-data. Also, you need to make sure your script has +x or execute permissions for the user.

首先,不要假设用户是www-data。您应该从PHP脚本运行whoami的输出,看看它是否是www-data。此外,您需要确保您的脚本具有+ x或用户的执行权限。

You should read about execute permissions.

您应该阅读有关执行权限的内容

You need to use chown on your PHP script to change the ownership to the www-data user:

您需要在PHP脚本上使用chown将所有权更改为www-data用户:

sudo chown www-data:www-data yourscript.php

Then you need to give the user execute permissions:

然后你需要赋予用户执行权限:

sudo chmod u+x yourscript.php

#1