How to Control File Access in Windows with Go?

Controlling File Access in Windows with Go

Question:

Traditional Unix permission settings, such as os.Chmod, do not work effectively in controlling file access on Windows. How can file access be managed in Windows using Go?

Solution:

Windows employs access control through Access Control Lists (ACLs) and Access Control Entries (ACEs). Each object has an ACL that determines access permissions for specific entities (users, groups, etc.).

Explanation:

ACL manipulation requires knowledge of Windows API authorization functions. However, a third-party Go package named "go-acl" simplifies this process. Chmod function from the package can be used to set file access permissions on Windows.

Code Example:

<code class="go">import "github.com/hectane/go-acl"

err := acl.Chmod("C:\path\to\file.txt", 0755)
if err != nil {
    panic(err)
}</code>

Results:

Chmod creates three ACEs in the file's ACL, granting specific access permissions to the owner, group, and everyone else.

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