Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
Get Information of the Current User¶
user.Current() returns information of the current (real) user.
If the code is run by a non-root user named some_user on Linux,
then information of some_user is returned.
However,
if some_user has sudo access and run the code using sudo,
then the real user user is root
and the information of root is returned.
In [1]:
import "os/user"
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currentUser, err := user.Current()
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currentUser
Out[3]:
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currentUser.Username
Out[4]:
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currentUser.Uid
Out[5]:
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currentUser.Gid
Out[6]:
Test An User's Access to a Path¶
Use unix.Access¶
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import "golang.org/x/sys/unix"
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unix.Access("/home", unix.R_OK) == nil
Out[6]:
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unix.Access("/home", unix.W_OK)
Out[4]:
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unix.Access("/tmp", unix.W_OK) == nil
Out[7]:
Use os.OpenFile + os.IsPermission¶
This way only works on files. Please refer to Golang : Test file read write permission example for detailed discussions.
In [8]:
import "os"
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os.OpenFile("/home", os.O_WRONLY, 0666)
Out[12]:
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