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Fixed building for windows, disable systemd check on windows
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,158 +1,24 @@ | ||
| //go:build !linux | ||
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| package systemd | ||
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| import ( | ||
| "fmt" | ||
| "os" | ||
| "os/exec" | ||
| "os/user" | ||
| "path/filepath" | ||
| "syscall" | ||
| ) | ||
|
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| // InstallService installs Gokapi as a systemd service | ||
| func InstallService() { | ||
| checkRunAsRoot() | ||
| checkSystemdOs() | ||
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| fmt.Println("Installing Gokapi as a service...") | ||
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| // Check if the service file already exists | ||
| if _, err := os.Stat("/usr/lib/systemd/system/gokapi.service"); err == nil { | ||
| fmt.Println("Service file already exists. Reinstalling it") | ||
| } | ||
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| // Find the path to the current executable and it's directory | ||
| executablePath, err := os.Executable() | ||
| if err != nil { | ||
| fmt.Println("Error getting executable path: ", err) | ||
| os.Exit(6) | ||
| } | ||
| executableDir := filepath.Dir(executablePath) | ||
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| username := getUserInvokingSudo(executablePath) | ||
| fmt.Println("Running service as user", username) | ||
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| // Create the service file | ||
| serviceFileContents := createSystemdFileContent(executablePath, executableDir, username) | ||
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| err = os.WriteFile("/usr/lib/systemd/system/gokapi.service", serviceFileContents, 0644) | ||
| if err != nil { | ||
| fmt.Println("Error writing service data to file: ", err) | ||
| os.Exit(3) | ||
| } | ||
|
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| systemctlCmd("daemon-reload") | ||
| systemctlCmd("enable", "gokapi.service") | ||
| systemctlCmd("start", "gokapi.service") | ||
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| fmt.Println("Service installed and started successfully.") | ||
| fmt.Println("The Gokapi executable found at " + executablePath + " will now run on startup in the background.") | ||
| fmt.Println("Please do not remove the executable file from that location or the service will not start.") | ||
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| // Exit the program | ||
| os.Exit(0) | ||
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| invalidOS() | ||
| } | ||
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| // UninstallService uninstalls Gokapi as a systemd service | ||
| func UninstallService() { | ||
| checkRunAsRoot() | ||
| checkSystemdOs() | ||
|
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| fmt.Println("Uninstalling Gokapi systemd service...") | ||
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| // Check if the service file exists | ||
| if _, err := os.Stat("/usr/lib/systemd/system/gokapi.service"); os.IsNotExist(err) { | ||
| fmt.Println("Service does not exist in systemd. Nothing to uninstall.") | ||
| os.Exit(3) | ||
| } | ||
| systemctlCmd("stop", "gokapi.service") | ||
| systemctlCmd("disable", "gokapi.service") | ||
| // Remove the service file | ||
| fmt.Println("Removing the service file...") | ||
| err := os.Remove("/usr/lib/systemd/system/gokapi.service") | ||
| if err != nil { | ||
| fmt.Println("Error removing service file: ", err) | ||
| os.Exit(4) | ||
| } | ||
|
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| systemctlCmd("daemon-reload") | ||
| fmt.Println("Service uninstalled successfully.") | ||
|
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| // Exit the program | ||
| os.Exit(0) | ||
| } | ||
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| // checkRunAsRoot displays an error message and exits the program if not run as root | ||
| func checkRunAsRoot() { | ||
| if os.Geteuid() != 0 { | ||
| fmt.Println("This feature requires root privileges.") | ||
| os.Exit(1) | ||
| } | ||
| } | ||
|
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| // checkSystemdOs displays an error message and exits the program if the OS is not systemd based | ||
| func checkSystemdOs() { | ||
| if _, err := os.Stat("/usr/lib/systemd/system"); os.IsNotExist(err) { | ||
| fmt.Println("This feature is only supported on systems using systemd.") | ||
| os.Exit(2) | ||
| } | ||
| } | ||
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| // systemctlCmd runs the command systemctl with the provided arguments. It displays an error message and exits the program | ||
| // if an error is encountered | ||
| func systemctlCmd(arg ...string) { | ||
| err := exec.Command("systemctl", arg...).Run() | ||
| if err != nil { | ||
| fmt.Println("Error executing systemctl "+arg[0]+": ", err) | ||
| os.Exit(4) | ||
| } | ||
| invalidOS() | ||
| } | ||
|
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| func getUserInvokingSudo(executablePath string) string { | ||
| username := os.Getenv("SUDO_USER") | ||
| if username == "root" || username == "" { | ||
| fmt.Println("WARNING! Could not determine user invoking sudo.") | ||
| usernameFromExecutable, err := getUsernameOfFileOwner(executablePath) | ||
| if err != nil { | ||
| fmt.Println("Could not determine username from file owner:", err) | ||
| os.Exit(6) | ||
| } | ||
| username = usernameFromExecutable | ||
| } | ||
| if username == "root" { | ||
| fmt.Println("Could not determine username other than root. Not running service as root.") | ||
| os.Exit(6) | ||
| } | ||
| return username | ||
| } | ||
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| func getUsernameOfFileOwner(filename string) (string, error) { | ||
| fileInfo, err := os.Stat(filename) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
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| fileUid := fileInfo.Sys().(*syscall.Stat_t).Uid | ||
| fileUser, err := user.LookupId(fmt.Sprintf("%d", fileUid)) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| return fileUser.Username, nil | ||
| } | ||
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| // createSystemdFileContent returns a byte array with the content of the systemd file to be written | ||
| func createSystemdFileContent(executablePath, executableDir, username string) []byte { | ||
| return []byte(`[Unit] | ||
| Description=Gokapi | ||
| After=network.target | ||
| [Service] | ||
| ExecStart=` + executablePath + ` | ||
| WorkingDirectory=` + executableDir + ` | ||
| User=` + username + ` | ||
| Restart=always | ||
| [Install] | ||
| WantedBy=multi-user.target`) | ||
| // invalidOS displays an error message and exits the program, as systemd is not supported on Windows | ||
| func invalidOS() { | ||
| fmt.Println("This feature is only supported on systems using systemd.") | ||
| os.Exit(2) | ||
| } |
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