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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| //go:build !windows | ||
| // +build !windows | ||
|
|
||
| package utils | ||
|
|
||
| import ( | ||
| "errors" | ||
| "os" | ||
| "os/user" | ||
| "strconv" | ||
| "syscall" | ||
| ) | ||
|
|
||
| func IsRoot() bool { | ||
| return os.Geteuid() == 0 | ||
| } | ||
|
|
||
| func DropPrivileges(newUid, newGid string) error { | ||
| if newUid == "" { | ||
| return errors.New("user option is empty, cant drop privileges") | ||
| } | ||
|
|
||
| if newGid == "" { | ||
| return errors.New("group option is unset, cant drop privileges") | ||
| } | ||
|
|
||
| gid, err := strconv.Atoi(newGid) | ||
| if err != nil { | ||
| g, err := user.LookupGroup(newGid) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| gid, err = strconv.Atoi(g.Gid) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| if err = syscall.Setgid(gid); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| uid, err := strconv.Atoi(newUid) | ||
| if err != nil { | ||
| u, err := user.Lookup(newUid) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| uid, err = strconv.Atoi(u.Uid) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
| if err = syscall.Setuid(uid); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| //go:build windows | ||
| // +build windows | ||
|
|
||
| package utils | ||
|
|
||
| import ( | ||
| "errors" | ||
| ) | ||
|
|
||
| func IsRoot() bool { | ||
| return false | ||
| } | ||
|
|
||
| func DropPrivileges(newUid, newGid string) error { | ||
| return errors.New("cant drop privileges in windows") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| package utils | ||
|
|
||
| import ( | ||
| "os/user" | ||
| "strings" | ||
| ) | ||
|
|
||
| // ExpandTilde replaces ~ with the homedir of the current user | ||
| func ExpandTilde(path string) (string, error) { | ||
| u, err := user.Current() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| return strings.Replace(path, "~", u.HomeDir, 1), nil | ||
| } |