fix: Fix the issue of failure to retrieve firewall status #7597
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| stdout1, _ := cmd.Execf("%s status | grep 状态", f.CmdStr) | ||
| if stdout1 == "状态： 激活\n" { | ||
| return "running", nil | ||
| } | ||
| return "not running", nil | ||
| } | ||
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The code provided has several minor issues:
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In the
NewUfwfunction, there is an unescaped single quote in the second line of theelseblock:"LANGUAGE=en_US:en sudo ufw)". The closing parenthesis should be escaped ("(LANGUAGE=en_US:en sudo ufw"). -
There are unnecessary comments that do not affect the functionality but contribute to maintainability.
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The command used to list the status might differ based on your system's locale settings or distribution-specific commands. Using a generic method like
grep "Status:"can help ensure compatibility across different systems.
Here’s a modified version with these issues fixed:
func NewUfw() (*Ufw, error) {
var ufw Ufw
if cmd.HasNoPasswordSudo() {
ufw.CmdStr = "\"sudo ufw\""
} else {
ufw.CmdStr = "\"LANGUAGE=en_US:en; LANG=en_US.UTF-8; ufw\""
}
return &ufw, nil
}
func (f *Ufw) Status() (string, error) {
stdout, err := exec.Command(f.CmdStr, "status").Output()
if err != nil {
return "", fmt.Errorf("failed to execute 'ufw status': %v", err)
}
status := strings.TrimSpace(string(stdout))
switch status {
case "active":
return "running", nil
default:
return "not running", nil
}
}Optimization Suggestions:
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Use Environment Variables for Language Settings: Instead of hardcoding language settings inside the script, it’s better to set environment variables before executing the
ufw statuscommand. This ensures consistency across environments where locales can vary. -
Error Handling and Debugging: Add more detailed logging and error handling around the execution step. This makes debugging easier and provides feedback if something goes wrong during execution.
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Testing Locally: Before deploying this to production, test the behavior locally on various systems to confirm that it behaves as expected under different conditions.
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Documentation: Document any assumptions made about shell output, especially when dealing with localized strings. This helps other developers understand how the script interacts with its environment.
By addressing these points, the code will be more robust, maintainable, and less prone to errors when run on different platforms.
| if stdout == "running\n" { | ||
| return "running", nil | ||
| } | ||
| return "not running", nil | ||
| } | ||
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| func (f *Firewall) Version() (string, error) { | ||
| stdout, err := cmd.Exec("firewall-cmd --version") | ||
| stdout, err := cmd.Exec("LANGUAGE=en_US:en firewall-cmd --version") | ||
| if err != nil { | ||
| return "", fmt.Errorf("load the firewall version failed, err: %s", stdout) | ||
| } |
There was a problem hiding this comment.
The code provides minor improvements and corrections to ensure it works correctly. Mainly:
-
The
LANGUANGEenvironment variable is set to enforce en_US, which may be necessary if the system's locale settings do not support this. -
Improved error handling in the
Versionfunction by using standard Go error formatting. Additionally, it returns an appropriate error message when execution fails due to missing data.
These changes enhance readability and maintainability of the code while addressing potential issues related to localization and error management.
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/approve |
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: wanghe-fit2cloud The full list of commands accepted by this bot can be found here. The pull request process is described here
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Refs #7527